Section 9: Stretchers 9 Stretchers 9.1 Objectives On completion of study and/or instruction on this chapter of the General Rescue Manual individuals should be able to: • Describe the characteristics of the four main types of stretcher used, And with other similarly trained people: • Load a person into a stretcher using four rescuer, blanket and clothing lifts • blanket and lash people into the folding, board and basket stretchers 9.2 Introduction The four categories of stretchers in most common use are: • Folding or pole stretcher - commonly referred to as NATO or Mk II stretchers • Board rescue stretchers • Basket stretcher - often referred to by brand names of Stokes Litter, or FernoWashington • Wrap-around stretchers 9.3 Folding or pole stretchers WARNING NOTE: These stretchers are not suitable for lowers, and are only appropriate for casualty movement on the flat. The folding stretcher must be set up as follows before a casualty can be transferred to it: • Unfasten the straps that hold the stretcher closed. • Spread open the stretcher and lock the spreaders in place by pushing on each bar with your foot, from the side to avoid standing on the bed, until it locks into place. • Do not use your hands as they can be pinched by the hinges. General Rescue Manual – March 2006 69 Section 9: Stretchers • • 9.4 Where it is possible that the centre hinge of the spreader bar may be snagged, causing the hinge to unlock and collapse the stretcher, a securing rope should be used. A short length of rope can be tied from one stretcher handle to the centre hinge and then to the other stretcher handle in ‘V’ pattern. Board rescue stretchers Many organisations have Board rescue stretchers available. This type of stretcher has a number of advantages for the rescue environment: • Providing protection for the patient from underneath. • A number of handholds. • Relatively inexpensive. • This stretcher is suitable for patient transport and some rescue techniques. • A footplate is usually used to prevent the patient sliding downwards if the stretcher is tilted towards the vertical position. 70 General Rescue Manual – March 2006 Section 9: Stretchers WARNING NOTE: A rope lashing system should be used at all times other than when the stretcher is moved over smooth and flat ground. Care must be taken if this stretcher is used for lowering as the high centre of gravity can cause the stretcher to invert, particularly when using the twopoint suspension method. 9.5 Basket stretchers There are two types of basket stretcher commonly in use. The older type has a strong tubular aluminium frame covered with ‘chicken wire’, whereas the newer has a formed plastic, fibreglass, or aluminium basket attached to a tubular aluminium frame. The newer designs have an advantage in that they are less likely to be snagged or penetrated than the wire model. Other than the very old wire designs, these stretchers can accommodate a ‘scoop’ style stretcher, or spinal board, thus making the transfer of a spinal casualty easier. Basket stretchers provide good protection for casualties and are ideally suited to a range of rescue techniques. The main drawback is the relative expense in comparison to other types of stretchers. 9.6 Wrap-around stretchers Wrap-around style stretchers such as the Sked and the Fallright Evacuation Splint, whilst quite different in design and construction, share the same critical feature in that General Rescue Manual – March 2006 71 Section 9: Stretchers they conform very closely to the casualty’s body, thus adding very little width or bulk for confined space operations. • Each of the wrap-around style stretchers has its own advantages and disadvantages that must be weighed up prior to use. • Each has its own individual casualty securing system. Manufacturer’s recommendations about methods of attaching lowering and guide ropes must be followed. 9.7 Blanketing the stretcher Before a casualty is placed on a stretcher, it should be covered with a blanket. This adds to comfort, keeps the casualty warm, and to a large degree helps immobilise any fractures that may have been sustained. In very warm weather a cotton bed sheet or sheets may be used instead of blankets. Single blanket method Lay one open blanket diagonally down the stretcher with the corner of the blanket in the centre of the top of the stretcher, and about 150mm overlapping. • Place the casualty on the blanket with the head level with the top. • Fold over and tuck in the lower half of the blanket. • Do likewise with the top half. 9.8 Blanketing - Lateral/Recovery position In addition to warmth, comfort, and immobilisation, the blanket is used for padding to keep the patient in the required lateral/recovery position. The following is the recommended method: Before folding the blanket around someone : 72 General Rescue Manual – March 2006 Section 9: Stretchers • • 9.9 • • • Roll a blanket end to end and position it on the stretcher so that the roll is used to pad the patient’s back. A second blanket is placed on the opposite side of the stretcher to support arm and stop patient rolling onto stomach. Loading the stretcher Loading a stretcher is an important part of casualty handling. Correct methods are essential for the well-being of the casualty to prevent aggravation of injuries. Final checks must be made by hand to ensure that a casualty is actually ready to lift before a lift is executed. WARNING NOTE: The casualty’s head and neck must be supported at all times. Casualty reassurance is important in all techniques to reduce the anxiety of the casualty, and reduce the risk of them panicking which increases risk to rescuers. 9.10 The four rescuer method When using four rescuers to load a stretcher and where spinal injuries are not suspected, the following method can be used: • • • • • • The stretcher is made ready and placed near the casualty’s head or feet. The leader instructs three other rescuers to kneel down on one knee on one side of the casualty (casualty lying flat on their back). They all have the knee closest to the casualty’s head elevated. The leader kneels near the casualty’s head to support the neck. The other three place their hands and arms underneath the casualty. Usually under the shoulders, small of the back, thighs, knees and calves. The leader gives the order: Prepare To Lift and, if no one dissents, follows it with Lift, whereupon all four lift. If necessary, the casualty can be briefly supported on the rescuers’ knees. The stretcher is then placed under the casualty. General Rescue Manual – March 2006 73 Section 9: Stretchers • • Final orders are Prepare To Lower, then Lower. The three rescuers, assisted by the leader, lower the casualty on to the stretcher. 9.11 Blanket lift (four or six rescuers) This is an effective method for loading or moving a casualty in a restricted space. • Make a stretcher ready using one blanket. • Roll a blanket lengthways for half of its width and lay the rolled section along the side of the casualty (casualty flat on back). • The leader then directs two (or three) rescuers to kneel down on each side of the casualty. • The rescuers on one side ease the casualty over on one side and the rolled section of the blanket is pushed well underneath the casualty. • With the rolled up section of the blanket now under the centre of the casualty, the casualty is eased over in the opposite direction and the blanket is unrolled. The casualty should now be lying flat on their back. • The sides of the blanket are rolled up close to the casualty’s body to provide handgrips for the bearers. They cross arms to help keep the lift even and the spine aligned. • On the order from the leader, the casualty is lifted waist high, and carried to the stretcher. • On the order from the leader, the casualty is lowered onto the stretcher. • The blanketing is then completed with one blanket, leaving the lifting blanket in position. • This ‘blanket carry’ can also be used as an improvised stretcher for carries over moderate distances. WARNING NOTE: Suspected spinal injured casualties can be safely transported by this method with correct immobilisation of the spine and with particular attention paid to the head and neck. 74 General Rescue Manual – March 2006 Section 9: Stretchers 9.12 Clothing lift (Three rescuers) This is an emergency method which can be used when the casualty’s injuries are not severe and time is critical. • Blanket a stretcher and place it close to the side of the casualty. • Tie the casualty’s hands together with a triangular bandage or similar material, or place in pockets/under their belt if unconscious. • Grab the casualty’s clothes along the centre of the body, and roll any loose fabric to form a hand grip. • Three rescuers take up the position on the opposite side of the casualty to the stretcher and position their hands. • The normal commands are given (Prepare To Lift, etc) and the casualty is gently lifted, then lowered onto the stretcher. 9.13 Webbing bands (Five rescuers) In some cases it may be necessary to transport a casualty some distance to a place where they can be loaded onto a stretcher. Webbing bands can greatly assist this operation. While there are many configurations that can be used, one suggestion is: • The bands are placed in position by pushing the long steel handle under the natural body hollows and see-sawing the bands into the required position, i.e. under the buttocks and shoulders. • After bands are correctly positioned, the five rescuers take up position, crossing bands to help keep lift level and align casualty’s spine. The normal commands are given (Prepare To Lift, etc) and the casualty is gently placed on the stretcher. General Rescue Manual – March 2006 75 Section 9: Stretchers 9.14 Specialist lifting/loading devices Specialist lifting/loading/extraction devices such as timber or synthetic spinal boards, scoop stretchers, and spinal immobilisation devices or harnesses are readily available from rescue equipment suppliers. These devices should always be used in compliance with manufacturer’s specifications and recommendations, and following appropriate specialist training. 9.15 Summary of stretcher types and uses Folding Board Basket Wraparound Advantages Large quantities available. Compact. Easy for one person to move. Comfortable. Moderate quantities available. Protection from below. Back and side protection. Comfortable. Lightweight. Less bulky than other types. Disadvantages Little protection for casualty. Need to secure locking mechanism. Relatively scarce. Cost. Bulk. Cost. Limited access to casualties to monitor/treat. Usage Moving casualties over level ground. Make good beds in mass casualty situation. NOT to be used for rescue from height. High center of gravity when used for lowers. Uncomfortable for long periods of time. Spinal injuries. Rescue from heights using General Rescue Techniques. MUST use lashing line when moving over uneven ground or lowersDO NOT rely on webbing straps. All purpose. Restricted or confined space. Special notes Use additional “lacing” when used for rescue from height. 9.16 Lashing the casualty to the stretcher In many cases, casualties will have to be firmly secured to the stretcher to enable it to be handled in different places. In all instances, except movement over a short distance on even ground, the patient should be lashed to the stretcher. If in doubt, lash the casualty in. 76 General Rescue Manual – March 2006 Section 9: Stretchers 9.17 Lashing the folding stretcher The ideal size and length for stretcher lashing is 12 metres of 11mm or 12mm rope. • Commence the stretcher lashing by forming a Figure 8 on the Bight around one of the top stretcher handles. • From this point take three Half Hitches around both the casualty and the stretcher, first in the region of the chest, the second in the vicinity of the wrist and the third hitch just above the knees. • A round turn is then taken around the feet and three Half Hitches applied to those already formed on the opposite side of the casualty’s body. • The lashing is finished with a Round Turn and Two Half Hitches on the remaining stretcher handle. • • The position of the three securing Half Hitches can be varied according to the location of the injuries that the casualty has sustained. In the case of a female casualty, the top securing hitch should be placed just above the breast line. Bricks or timber placed under the stretcher D’s before lashing commences, will enable the rope to be passed under the stretcher more easily. 9.18 Lashing - Lateral/Recovery position The lashing of the stretcher differs from the normal method in that the rope does not pass around the feet. • The middle lashing is positioned under the casualty’s buttocks to prevent movement downwards. • Instead of passing a loop around the casualty’s feet, the line is Half Hitched around each handle at the foot of the stretcher. General Rescue Manual – March 2006 77 Section 9: Stretchers 9.19 Lashing - Board rescue stretcher The patient should be lashed to the board rescue stretcher whenever it is going to be lowered or moved over uneven ground, eg: rubble, confined spaces. Where nylon straps come with the stretcher, they can be used, but not as the primary way of securing a casualty to the board rescue stretcher. A 12m rescue line, or climbing tape, is used to lash the board rescue stretcher. The process is as follows: • Begin with a Rethreaded figure 8 through the topmost handhold or hole. • Pass the line down the side of the board. • Take a complete turn under the board and back across the casualty’s chest. • Form a hitch and tighten gently. • This is repeated across the casualty’s wrists and again just above the casualty’s knees. • A complete round turn is taken around the feet. • The rope is then taken up the other side of the board forming hitches on each turn of the lashing. • Complete with a round turn and 2 Half Hitches on the handhold opposite where the lashing was started. Some board rescue stretchers have runners underneath with slots in them for the rope to pass through. This has the advantage of minimising ropes being scraped on the ground or building edges. 9.20 Alternate Board rescue stretcher lashing An alternate method for lashing the board rescue stretcher where there is insufficient room for the rope to pass through the runners, and there is a risk of the ropes being damaged or caught is: 78 • Begin the same as lashing the basket stretcher (see 9.22 below) with a hitch around each of the bottom handholds. • Criss-cross up the stretcher coming from the outside of the stretcher, then up through the handhold and diagonally across to the other side other the casualty. Working this way minimise pressure on the handholds. • Finish with a Round Turn and 2 ½ hitches adjacent to the casualty’s shoulders. General Rescue Manual – March 2006 Section 9: Stretchers When this lashing is used and the stretcher is going to be lowered consideration should also be given to the Improvised Casualty Harness shown in 9.23. Note: This technique is shown without a blanket for clarity- a blanket would normally be used. 9.21 Securing a basket stretcher with securing straps Some basket stretchers are supplied with securing straps with seatbelt buckles or ‘Fastex’ clips. These should be used in conjunction with a lashing, whenever the basket stretcher is used for anything other than moving the stretcher over even ground. • When the patient is small there will be gaps between the patient and the sides of the stretcher. It is not improbable that a casualty could slide out from under the straps if the stretcher was tilted. Gaps between the casualty and the stretcher sides may be filled with blankets, clothing or pillows etc. before the straps are snapped in place. • Remember that the purpose of strapping or lashing is to combine the patient and the stretcher in a solid manageable unit capable of being carried over hazardous terrain, or for rescue. 9.22 Securing a basket stretcher by lashing • • • • The casualty can be lashed securely to a basket stretcher with a 12m length of 11mm rope, or tape, with the lashing pattern dictated by the casualty’s injuries and size and by the attitude through which the stretcher will move. If the basket stretcher has no foot plate, the casualty’s feet should be secured to prevent them from sliding down the stretcher. If the casualty is to be shifted in a vertical position the head of the patient must be secured. Pack soft material on either side of the casualty’s head and tie a length of bandage to one lower rail, lay it over the casualties head (not covering the eyes) and tie the other end to the opposite lower rail. It is important to continually reassure any casualty who is secured to a stretcher in such a confining manner. One option for the securing the casualty is shown below: • • • • General Rescue Manual – March 2006 Find the middle of the tape or 12m line Hitch through hand-hold at feet end Criss-cross up stretcher Finish with round turn and 2 ½ hitches around handholds adjacent to the patient’s shoulders 79 Section 9: Stretchers 9.23 Improvised casualty harness An improvised casualty harness can be fitted to either the basket stretcher or board rescue stretcher. It is useful whenever the footplate is not used/secured e.g. small people, lower leg injuries, alternate board rescue stretcher lashing (9.20) This harness can be made using rope or tape. • Form a loop in the middle of the rope • Bring this between the casualty’s legs • Bring the tails around the buttocks and pass through the loop • Ties off to hand holds on the side of the stretcher using Round Turn and 2 ½ hitches. Note: This technique is shown without a blanket for clarity- a blanket would normally be used. 9.24 Moving a stretcher over uneven ground The technique for moving over rubble is covered in the USAR Awareness Student Manual, and the principles remain the same for any uneven ground. A stretcher should, wherever possible, be carried in the horizontal position or slightly ‘head high’. When moving over debris or uneven ground, this may prove to be difficult, but risks to both casualty and rescuers can be reduced to a minimum by adopting the following procedures: 80 General Rescue Manual – March 2006 Section 9: Stretchers Using six rescuers Moving a heavy casualty over difficult debris conditions for any more than 10 or 15 metres, will almost certainly require 6 rescuers. • The leader should position three on each side of the stretcher. • On the order Prepare To Lift, the rescuers stoop and grasp the stretcher. When all is in readiness, the leader gives the order Lift and the stretcher is raised to waist height. • The next order will be Prepare To Pass. Any member of the team who for any reason is not ready should inform the leader. • Good footing on debris is hard to find, and care should be taken in this regard. • On the command Pass, the stretcher is passed until such time as it is supported by four rescuers, leaving two spare. • These two then climb carefully around the stretcher and take up positions at the other end of the stretcher. • The process is then repeated until the stretcher arrives on clear, solid ground. • It is stressed that this operation calls for a high degree of teamwork and that the leader must retain control throughout. • The leader must ensure that while the stretcher is being passed, no member of the team is moving on the debris. 9.25 Moving a stretcher in restricted spaces In small spaces, if there is sufficient height and the casualty has been lashed to the stretcher, it may be stood on end and moved around sharp corners. • • Where the height is insufficient to permit this method being used, a compromise between the vertical and horizontal positions is necessary. The casualty should be carried feet first as far as the middle of the right-angle bend, then the foot of the stretcher is placed on the ground and the head end lifted as high as the situation will permit. General Rescue Manual – March 2006 81 Section 9: Stretchers • • • The stretcher can be worked around the bend, one rescuer easing the foot end and the other the head. Under these conditions the stretcher should not be tipped on its side. To do so would only increase its height and also the difficulty in handling it. ‘Wrap-around’ style stretchers are specifically designed for confined spaces and that these should be used wherever possible. 9.26 Improvised stretchers In any disaster, there may be insufficient stretchers immediately to hand for the number of casualties involved. Such situations will normally be multi-agency responses and the resources of all involved agencies should be utilised. There are many methods of improvisation and some imagination should be used when confronted with the problem. A number of the more commonly used methods are described here. WARNING NOTE: Improvised stretchers should never be used for rescue techniques, other than moving over flat ground. Platform stretchers Improvised platform stretchers can readily be devised from doors, sheets of galvanised iron, or bed frames. Pole stretchers These stretchers are very simple to make and require two poles about two metres long. Stout broom handles, water pipe or 50mm x 50mm timber are quite appropriate for this job. 82 General Rescue Manual – March 2006 Section 9: Stretchers The poles should be laid parallel on the ground and about 600mm apart. The bed of the stretcher can be formed from a blanket, sacks, overalls or coats. The weight of the casualty will hold the blankets in place. Ladders Where for any reason, a very narrow stretcher is required, such as for passing through small window openings, tunnels etc. a small ladder or one half of a small extension ladder can be used to an advantage. A decking of boards should be placed on the ladder (if available) and it is then blanketed in the normal way. The lashing line is attached to a ladder string using a rethreaded Figure of eight, and then the lashing done at same positions as board rescue stretcher. Chairs A strong style kitchen chair can be used for carries of casualties without serious injuries. General Rescue Manual – March 2006 83 Section 11: Non-stretcher based rescue techniques 10 Stretcher based rescue techniques 10.1 Objectives By the end of studying and undertaking training on this chapter of the General Rescue manual individuals should be able to, with other similarly trained people: • select appropriate and perform safely a variety of low and steep angle rescue techniques including a stretcher lower/raise in a low angle situation • Single, Two Point and Four Point Lower in the limited high angle environment. • Ladder Slide • Ladder Hinge 10.2 Introduction In any disaster occurring in an urban environment, it is likely that large numbers of casualties could be trapped in upper floors of buildings, in basements or other depths, or in many other difficult or inaccessible areas. In each case, the method of rescue will be dictated by the circumstances. This section attempts to provide some of the alternative methods of rescue for the low and steep angle situation. The simple option of carrying a casualty up or down an inside stairway must not be overlooked. 10.3 Definitions Low angle rescue Low angle rescue techniques are used to undertake rescues on slopes of less than 30 degrees, e.g. gentle slope or rubble pile. They are used when the person’s injuries require them to be in a stretcher. The main weight of the patient is taken by the rescuers positioned on the side of the stretcher, but allows control in the event that the rescuers may slip or trip. Steep angle rescue Steep angle rescue techniques are used when the situation requires the lowering, or raising, of the stretcher in an angle generally between 30 and 60 degrees. In this situation the weight of the patient and stretcher is taken by the lowering lines. Because of their specialist nature, steep angle rescue techniques are not covered in this manual. Anyone interested should consult the USAR Best Practice Guideline: Rope Rescue Tier Model. High angle rescue High angle rescue is used for rescues above 6 metres and or where the angle of the incline exceeds 60 degrees. It requires specialist equipment and highly trained rescuer. Because of their specialist nature, high angle rescue techniques are not covered in this manual. Anyone interested should consult the USAR Best Practice Guideline: Rope Rescue Tier Model. 84 General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques Limited high angle rescue This refers to rescue techniques that can be used for the high angle environment, where the section of high angle (over 60 degrees) does not exceed 6 metres. This can include natural terrain or buildings, provided it does not exceed 6 metres. 10.4 Additional equipment Some of these techniques will be made easier by the use of additional equipment, now often carried by General Rescue Team, for example Karabiners, descenders, and climbing tape. Teams are encouraged to train for all circumstances. 10.5 Low angle rescue techniques HAZARD ID AND CONTROL HAZARD CONTROL MECHANISM Slipping/unstable rubble Rescuers to wear all standard PPE Use scouts to select and mark most stable and safe route for stretcher Surface hazards Use Basket Stretcher in preference due to side protection offered Injury to rescuers Use of ergonomic lifting and handling techniques Rope breaking Use standard 11mm static lines Low angle rescue techniques have two main components: the attachment of a line to the stretcher, and the creation of friction to allow the stretcher to be “caught” in the case it is dropped, or builds up too much speed. 10.6 Attachment of the line A line should be attached to the head of the stretcher, encompassing the aluminium frame in a basket stretcher, or spreading the weight on a board stretcher. There are two main options. Option one: This option is very easy and very strong but does require the use of an additional line. It is created by tying a figure 8 on the bight in the centre of a 12m line. It is then ½ hitched around the top handles and then thread down the sides taking a turn around each handle location. It is finished with a round turn and 2 ½ hitches. A second line is then attached to the figure 8 using a Karabiner or rethreaded figure 8 knot. General Rescue Manual – March 2006 85 Section 11: Non-stretcher based rescue techniques Option two: This option works well for small distances and when you only have one rescue line. Make a large loop by tying a Figure of eight on the bight. Divide the loop and place each end through the stretcher handhold and then bring back together overlapping. Bring the Figure Eight on the Bight up through the cross over. 86 General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques 10.7 Creation of the friction/“catch” The type of friction or catch used in the low angle situation will depend on factors such as the risk, equipment available, personnel available and height of the slope. Body belay The body belay is the most simple and involves using a rescuer sitting down on stable ground and placing the belay line around their lower back. This method should never be used if there is any risk of a rescuer/rescuers being required to hold the whole weight of the stretcher. Simple friction This method involves wrapping the belay line around a solid object such as a pipe or “I” beam creating a round turn. The number of round turns can be increased if more friction is required. This method does not create a “catch” and will only work if the attendant is able to maintain the friction. Therefore it should only be used where the friction is used to assist holding the load as rescuers re-position themselves and would normally not be expected to take the whole stretcher load. Tandem Prusiks A tandem Pusik system can be used independently or in combination with simple friction (although this will require two people looking after the system) Tandem Prusiks are attached to a solid object using a sling/s and Karabiner. When applied to the belay line, they are kept loose until such time as there is a “jerk” on the system and they “catch” the load. 10.8 Limited High angle rescue techniques Single, two and four point lowers These lowers are named by the number of points of suspension on the stretcher. The choice of lowering technique will depend on the structural limitations, casualty’s injuries and equipment available. In the majority of cases wherever possible, it is recommended that casualties be recovered in a horizontal position. HAZARD ID AND CONTROL HAZARD CONTROL MECHANISM Rope failure/not long enough Only 11mm static Kernmantle lines used (see Chapter 4) Line lengths checked before each lower, after passed around hard belay point Rescuer falling from height All rescuers to be tied off if within 2m of edge, or to be behind fence or solid barrier no less than 900mm high Losing rope control Use hard belays whenever possible Stretcher breakage Use only Board Rescue or Basket General Rescue Manual – March 2006 87 Section 11: Non-stretcher based rescue techniques stretcher Loss of control of lower Use of series of standard commands for lower control Failure of straps on basket stretcher Additional lashing line or tape used General scene control/safety For the Single and Four Point Lower there should be a rescuer at the bottom to receive the stretcher 10.9 Guide lines Guide lines may be attached to stretchers during lowering operations to prevent the stretcher from spinning and in order to clear obstacles. These guide lines are attached to the head and/or the foot of the stretcher, normally using a re-threaded Figure 8. Rescuers controlling guidelines should wear gloves. 10.10 Single point lower The single point lower can be used to maintain the stretcher in the horizontal position and works well when you have a high anchor point to run the main lowering line through. A pulley or karabiner is desirable for this. A mechanical descender can be used to control the rate of descent. If this is not available friction needs to be created by the use of round turns or a Friction Hitch. A safety line should be attached to the head of the stretcher as per 10.6. A 12m line is used to create the bridle on the stretcher and then the main line is attached to the lifting point using a Rethreaded Figure 8. To create the bridle: Put a figure 8 on the Bight in the center of a 12m line Place that on approximately the casualty’s chest Form a hitch around the top handhold on each side of the stretcher Pass the line along the side of the stretcher and form another hitch on each side at one of the bottom handholds Bring the running ends up to the centre and connect to the first figure of 8 on the bight by either: 88 General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques Tying a figure 8 on the bight in each of the running ends and attaching the main lowering lines by means of a Rethreaded figure of 8, or: Using a Karabiner - in this case you can attach the running ends with a round turn and 2 ½ hitches which is more easily adjusted to balance the stretcher. 10.11 Two point lower This method is used for raising or lowering a stretcher over relatively short distances and where the casualty’s injuries allow for transport vertically. The casualty is blanketed and lashed to a stretcher in the normal way, with the possible addition of a bandage tied across the forehead to prevent the head flopping forward should the casualty become unconscious. • Two lowering ropes are tied to the head of the stretcher, one on each side, by means of a rethreaded figure 8, on the one but top handhold, and a ½ hitch around the top handhold. • The same procedure is used for the foot of the stretcher and the bottom lines are passed out to the two rescuers on the ground. • The Team Leader (or leader of the “top team”) checks if all rescuers are ready, by calling “top team General Rescue Manual – March 2006 89 Section 11: Non-stretcher based rescue techniques • • • • ready?” and waiting for a reply. This is followed by “bottom team ready?”. If all rescuers are, the rescuers who are lowering the stretcher are directed to “tension” their lines. The leader of the top team, and or any rescuers at the top who are free to assist, ease the stretcher over the edge of the wall with the tension maintained on the lowering lines. The two rescuers on the ground guide the stretcher clear of any obstruction and walk in, while still pulling on the guide lines, to support the stretcher on either side as it comes down. This technique can be used equally well inside a building, using a hole found or cut in the floor. The minimum team size for this lower is six, but as the weight is taken by two points a hard belays should be used rather than a waist belay whenever possible. 10.12 Four point lower • • • • • • 90 Where it is essential to keep the casualty horizontal, the four-point lower can be used. With four points of suspension it also is more desirable for very heavy patients, particularly if hard belays are not available. The stretcher is rigged and lowering lines are attached in exactly the same way as for the two-point suspension, except that the guide lines may not be required if the drop to the ground is clear of obstacles. The casualty is then, or sometimes may already be, placed in the stretcher, blanketed and lashed appropriate to their injuries. Once all rescuers are ready, and lines are tensioned if the hole allows, place the stretcher diagonally across the hole. As instructed the stretcher is then “straightened up” and lowered evenly. If the hole does not allow this the rescuers on the far side pull the stretcher across until it is located over the centre of the hole. General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques • Four rescuers are required to lower and at least one at the bottom to receive. NOTE: An alternate method of performing the four point off a ledge involves the addition of two lines on the inside edge of the stretcher which are passed underneath the stretcher to two rescuers on the ground who pull the stretcher clear of the wall. 10.13 Ladder Slide The Ladder Slide is very similar to a 2 Point Lower, with a ladder used to take some of the weight of the stretcher. The Ladder Slide is the most practical option for raising a loaded stretcher, e.g. out of a basement. It can also be used for lowering and is an option if no hard belay points are available. The process below describes use of the Ladder Slide for raising a stretcher - for lowering, reverse the process (excluding the first two steps). • The casualty is blanketed and lashed to a stretcher, and two lines are secured to the head end using ½ hitch and rethreaded figure 8. • The ladder is placed in position by three rescuers, and moved until it forms an angle of approximately 45 degrees. • One rescuer foots the ladder and/or secures the bottom to pickets, and one or two rescuers act as human props. • The lines are passed to rescuers at the top of the ladder and passed around belay points if available. • The stretcher is placed on the ladder. General Rescue Manual – March 2006 91 Section 11: Non-stretcher based rescue techniques • • The stretcher is then pushed up the ladder by a rescuer who climbs up the ladder, until such time as the head end passes clear of the opening. Rescuers at the top who are not holding the raising lines can then pull the stretcher in and move away from the edge/window. WARNING NOTE: In the ladder slide technique, the ladder is used in a manner other than that for which it was designed and manufactured. This is an improvised technique. As the load on the centre of the span will be close to 150kg, the span must be propped by one or two rescuers, or shored. Some specific points to be observed with the Ladder Slide are: • Communication between the rescuer coming up the ladder and the top team is very important. • There should only ever be one person, either casualty or rescuer, on each section of the ladder at any time. • Where a timber ladder is used, it must be reinforced with wire or fibreglass stile supports. • Where a basket stretcher is used on an alloy ladder, there will be very little friction. • Where ladders are extended to provide sufficient reach, the overlap should be lashed with short rope or cord to avoid stretcher catching on the pulley and dragging the extension with it. 92 General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques 10.14 Ladder Hinge This is a relatively simple method of rescuing a casualty from an upper floor, when it is desirable to keep the stretcher horizontal, or the upper building is so unstable that it cannot be used to assist in the operation. It should be noted that the ladder is used with its reinforced side away from the structure. • • • The casualty is blanketed and lashed to a stretcher in the normal way. The ladder is placed vertically against the wall in front of the opening. A rethreaded figure 8 is tied to one of the handholds at the foot of the stretcher in the same manner as for a Two Point Lower. • The rope is then taken around the stile of the ladder in a Half Hitch and the stretcher is raised until it is about 250mm clear of the window sill. • Six to eight round turns are taken around the ladder rung, the rope is HalfHitched to the stile on the opposite side of the ladder, and finally secured to the other side of the stretcher using a Round Turn and two Half-Hitches. • Alternately, webbing and Karabiners can be used. • Lowering lines are attached to the head end of the stretcher, and when all is secure, the word is passed to the leader who gives the orders: Prepare To Lower and then: Lower. • The stretcher is passed out of the window by hand until the head end can be supported by the lowering lines. • One rescuer remains close to where the ladder has been footed, ensuring no side-sway develops. • 1-2 rescuers then walk backwards, hand-over-hand with each rung, controlling the speed of the whole operation. • The stretcher should finally come to rest on top of the ladder flat on the ground, from where it can be quickly disconnected and the casualty removed to safety. • For larger ladders additional lines can be attached to the head of the ladder and used as guidelines, controlled by people on the ground. NOTE: this method can also be readily used to raise a casualty. WARNING NOTE: In the ladder hinge technique, the ladder is used in a manner other than that for which it was designed and manufactured. The ladder must have a reinforcing wire. General Rescue Manual – March 2006 93 Section 11: Non-stretcher based rescue techniques 11 Non-stretcher based rescue techniques 11.1 Objectives On completion of training on the techniques described in this chapter individual should be able to: • Tie and fit to another person the Vertical Lift Knot • With other similarly trained people, use this knot to safely lower someone from height not exceeding 2 stories 11.2 Introduction This chapter describes a technique, the Vertical Lift Knot (VLK), that can be used to rescue casualties without the use of a stretcher. It can also be very useful for rescuer entry into and/or exit from sites. The advantages of the VLK is that it requires minimal equipment and is relatively quick to set up. Often the same anchors can be re-used, meaning a large number of people can be rescued quickly. The main disadvantage is that it provides little or no protection for the person being rescued. It may also worsen injuries, so it’s use is generally limited to the “walking wounded”. HAZARD ID AND CONTROL HAZARD Rope failure/not long enough Rescuer falling from height Losing rope control Loss of control of lower General scene control/safety 94 CONTROL MECHANISM Only 11mm static Kernmantle lines used (see chapter 4) Line lengths checked before each lower, after passed around hard belay point. A safety line is used- a re-threaded figure 8 around the chest. All rescuers to be tied off if within 2m of edge, or to be behind fence or solid barrier no less than 900mm Use hard belays whenever possible Use of series of standard commands for lower control Have someone at the bottom to receive. General Rescue Manual – March 2006 Section 11: Non-stretcher based rescue techniques 11.3 Vertical Lift Knot The Vertical Lift Knot (VLK) is used to raise or lower casualties/rescuers in a vertical position, sometimes in a restricted space such as a shaft. Originally used to rescue workers overcome by gases in sewers, it is sometimes called the Sewer Knot. The feature of the knot is that it can be tied in the bight of the rope without using the ends. This in turn means that the two ends of the rope are available to haul on, and to keep the casualty central in the shaft. The significant safety feature of the knot is that there is no “knot” to slip undone. Remember at all times the comfort of the casualty must be taken into account and padding should be used as necessary. • The bight of the line is taken behind the casualty’s neck, run down their front, passing between the legs front to rear and back up, their sides towards the front, and then over the shoulders (with the running ends closer to the arms). CAUTION: Make sure that the ropes do not cross over between the legs. • On each side a loop of the running end is passed under the first rope so that the arm can be passed through the loop. • The rope is adjusted to be securely fitted to the casualty. Starting at the neck, adjust the ropes and padding on both sides of the body. • A figure 8 on a bight, using both ropes, is tied behind the casualty’s neck to complete the knot. The lowering line is then attached with a rethreaded figure 8. The tails of the Vertical lift rescue knot can then be used as guidelines, or secured out of the way. Note: An alternate method of tying the VLK is commonly taught and used, where there is only a single twist on each side behind the neck. This method is safe and acceptable. It is important that both sides are the same, and not a mix of the two methods. General Rescue Manual – March 2006 95 Section 12: Improvised casualty movement 12 Improvised casualty movement 12.1 Objectives: On completion of training on this chapter of the General Rescue Manual, individuals should be able to: Given a conscious patient, and acting alone: • pack strap Given a conscious patient, and acting in a pairs with other similarly trained people: • fore and aft • two-handed seat • four-handed seat 12.2 Introduction Improvised casualty movement covers techniques using no rescue equipment. It must be clearly understood that the following techniques are for use in an emergency and that seriously injured casualties should, where possible, be placed on a stretcher. Conditions such as fire or imminent danger of building collapse, may however dictate that removal from the scene is the first priority. In some cases this may even take precedence over life sustaining first aid. This subject is covered under two headings: 1. One Rescuer Handling Techniques 2. Two Rescuer Handling Techniques 12.3 One rescuer techniques One rescuer human crutch For this method to work, the casualty must be conscious and capable of giving the rescuer some assistance. • Note the position of the rescuer’s hands, one holding the casualty’s wrist and the other taking a firm grip of the clothes at the waist on the far side of the body. • The injured side of the casualty should be closest to the rescuer. 96 General Rescue Manual – March 2006 Section 12: Improvised casualty movement WARNING NOTE: All single rescuer techniques involve the risk of injury to the rescuer. Pack strap carry This is used on the conscious casualty with no fractures of the extremities. • • • • Turn your back to the standing casualty. Bring their arms over your shoulders to cross your chest. Keep their arms straight as possible, the armpits over your shoulders. Hold casualty’s wrists, bend, and pull the person onto your back. Firefighter’s crawl This is an useful method for when a casualty has to be removed from a smoke filled building in an emergency - noting that rescuers will not enter a smoke filled building. • Both rescuer and casualty have their heads low down where the clearest and coolest air is found if the building is on fire. • The entire weight of the casualty does not have to be supported by the rescuer. • • The casualty’s hands should be crossed over and tied with a bandage or similar. The Firefighters crawl method can be varied according to personal preference. Probably the most effective method is for the rescuer to place an arm, shoulder and head through the casualty’s arms. General Rescue Manual – March 2006 97 Section 12: Improvised casualty movement Removal down stairs method This method is used to recover a heavy casualty down stairs, when the rescuer cannot use the pack strap or other methods. However, its use need not be restricted to staircases. • With the casualty lying flat, tie the wrists together using a triangular bandage or similar. • Next, the rescuer comes to the head and lifts the casualty into sitting position. • The rescuer reaches though under the casualty’s arms and grasps the wrists. • The rescuer is then in a position to drag the casualty backwards, and if a staircase has to be negotiated a large measure of support can be given to the casualty’s trunk by the rescuer using a knee to ease over each successive step, remembering that the strongest part of any staircase is close to the wall. 12.4 Two rescuer techniques Two rescuer human crutch This method is similar to the one rescuer human crutch, except that the casualty is supported on both sides with the arms of the rescuers’ crossed over on the casualty’s back and grasping the clothing on the opposite sides of the body. 2 and 4 handed seats These are a series of two rescuer techniques that involve creating a “seat” from the rescuer’s hands. A number of variations of the 2- handed seat are possible that give you “free” hands to support the casualty from behind and/or in front or leave hands free to open doors, or move things out of the way. The method chosen will depend on the terrain, weight and injuries to the casualty, and possible obstacles. Two-handed seat • Rescuers kneel on either side of the casualty, get them into a sitting position, lace one arm under the knees and link up with the hand to wrist grip. • Their forearms are then crossed over the casualty’s back, where they get a firm grip of the clothing or link arms across casualty’s back. • The leader should give the normal orders for lifting and lowering. 98 General Rescue Manual – March 2006 Section 12: Improvised casualty movement Four-handed seat • This is a method where each rescuer grasps their left wrist and the hands are joined up. • This provides a comfortable seat for the casualty and places a minimum strain on the rescuers. However, the casualty must be sufficiently conscious to hold on. The ‘Fore and Aft’ method This is perhaps the most suitable way in which two rescuers can handle an unconscious casualty. • The casualty is put into a sitting position. • The first rescuer stoops at the rear of the casualty. Reaching under the casualty’s arms, the first rescuer grips the casualty’s wrists. • The second rescuer stoops between the casualty’s legs grasping them underneath the knees. • The standard lift orders are given and the casualty is lifted into the carrying position. • Should the casualty have a leg injury, the effects of this can be minimised by the front rescuer crossing the casualty’s legs over, then carrying them to one side. The advantage of this method is that the rescuer supporting the casualty’s feet has a free hand with which to open doors, clear debris, etc It is again stressed that the one and two rescuer techniques are generally confined to emergencies where removal from the scene is the first priority. General Rescue Manual – March 2006 99
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