JP2008119460A - Supporter for chest compression system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporter for chest compression system which can keep an approximately fixed position and power direction for chest compression system on the chest of a patient (stability), and can be used easily and rapidly, and assembled rapidly with a few parts, and can be used to suit for the different shapes and sizes of patients, and to provide a chest compression system having the supporter. <P>SOLUTION: The supporter comprises a back board 1, a front 2, and a side 3, wherein the front has a seat 4 for a compression part 5, and the side can provide an adjustable interval d between the seat and the back board. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a resuscitation system, and more particularly to a support device for a chest compression system and a chest compression system comprising the support.

  Sudden cardiac arrest is one of the leading causes of death in Western developed countries such as the United States and Canada. An important aspect for increasing the chances of survival from cardiac arrest is CPR (cardiopulmonary resuscitation) and cardiac defibrillation performed in the first dangerous minutes after the accident. CPR is performed by delivering a sufficient amount of oxygen-saturated blood to the vital organs by external chest compression combined with life-saving breathing. Cardiac defibrillation is performed to reestablish normal heart rhythm by delivering an external electrical shock. The quality of CPR is essential for survival. Chest compressions must be performed at sufficient depth and speed with minimal interruption. Manual chest compression is an extremely tiring task and it is virtually impossible to perform a sufficient quality manual CPR during patient transport.

  To overcome this problem, several chest compression systems for cardiopulmonary resuscitation have been developed. These systems include a chest compression member that performs compression and requires that the member compress the patient's chest in the correct position. It is also necessary to ensure that accurate positioning is maintained during the resuscitation process.

  U.S. Pat. No. 5,743,864 describes an automatic mechanical external chest compression device consisting of vertical struts attached to a base plate. A cantilever arm comprising a cylinder and piston assembly is connected to an annular collar that can surround the patient. The annular collar is formed by a single diaphragm or an outer and inner diaphragm. This collar is not adaptable to various patient sizes and shapes.

  US Pat. No. 6,398,745 is another example of an automatic CPR device. The device includes a compression belt that wraps around the patient's chest. The compression belt repeats tightening and relaxation by the action of the belt tightening spool. In use, the compression belt compresses and relieves and is easily entangled with the patient's clothing. For this reason, the patient must be undressed before the chest compression procedure begins, and valuable time is lost.

  The belt device has other drawbacks. In particular, the belt covers a large part of the patient's chest, interferes with the defibrillation electrode (the belt needs to be removed before defibrillation begins), and stethoscope and chest rise tests for correct intubation And become complicated.

  U.S. Patent Application No. 2003181834 describes another chest compression device. The apparatus includes a back plate that is placed behind the patient's back behind the patient's heart and a front that is placed around the patient's chest in front of the patient's heart. The front part comprises two legs that can be coupled to the back plate, which have a fixed position on the back plate and therefore cannot be adapted to the width of the patient. The front includes a compression device that automatically compresses or releases the patient's chest and a compression member that can be secured to the patient's chest by a vacuum cup. This vacuum cup can be fixed accurately in some patients, but it will slip in other patients and chest compression will be inaccurate (unstable).

  The devices are complex and time consuming to install, cumbersome to install and operate, or unstable on the chest. The device is further heavy and expensive.

US Pat. No. 5,743,864 US Pat. No. 6,398,745 US Patent Application No. 2003181834

  It is an object of the present invention to provide a support that maintains a substantially constant positioning and direction of force (stability) of the chest compression system on the patient's chest, while at the same time being easy and quick to use. Nearly constant positioning of the chest compression system on the patient's chest is important for obtaining the necessary quality of compression and for safety reasons.

  It is an object of the present invention to provide an apparatus with a small number of parts, which can be quickly assembled and adapted to different patient shapes and sizes. Another object of the present invention is to provide an apparatus that is easy to use, robust, portable, lightweight, safe and reliable.

  These and other objects are achieved by a support for a chest compression system comprising a back plate, a front portion and a side portion, the front portion comprising a seat for a compression member. This support can provide an adjustable spacing between the seat and the backplate.

  Moreover, this invention is provided with the chest compression system provided with the said support body.

  The back plate includes a patient receiving surface defined by the sides. In one embodiment of the invention, the patient receiving surface has an adjustable area. The purpose of this feature is to ensure that most patients, regardless of their size, are constrained from lateral movement by the side, so that they can be displaced on the backplate from the patient's side to the desired distance. It is configured as follows.

  The support of the present invention can comprise a rotary and / or telescoping and / or sliding device that provides the adjustable spacing between the seat and back plate of the compression member. It can have a telescoping leg shape with a length that can be adjusted to the size of the patient, and then provide a side that can be fixed in place. In addition, a hinge can be provided on the side to provide an adjustable length. It is also possible to provide a device at the front for adjusting the distance, with the sides having a constant length and configuration.

  In one embodiment of the invention, the adjustable area of the patient receiving surface is provided by a side portion slidably connected to the backplate. This is accomplished by providing one or more slides and protrusions on the back plate and sides. The said sliding body can have a horizontal recessed part provided with the ring-shaped cross which rotates a side part. With this configuration, the lower edge of the side (eg, leg) can be displaced on the back plate to apply the lower edge to the patient's body, thus providing stability of chest compression. When the side part slides into place, it can be fixed. Side fixing is performed by a fixing device or, for example, by providing a fixed fixing position (notch) in the sliding body.

  Further, the side portion can be rotated and fixed to the back plate so as not to slide. Rotating the side to a position near the side of the patient can place a desired limit on the lateral movement of the patient.

  The rotatable connection may be made in the manufacturing process if integral with the side (eg in the form of a leg) or between the side and backplate if the backplate and side are separate elements. Can be provided by an intervening element (eg, a hinge).

  In one embodiment of the present invention, the side comprises two legs of adjustable length. In the modification of this embodiment, when the length of one leg is changed, the length of the other leg is changed in the same manner. The leg can be fixed to the front or integrated and can comprise a coupling element for coupling to the back plate, can be fixed to the back plate or integrated and coupling element for coupling to the front plate Or an upper part fixed or integrated with the front plate and a lower part fixed or integrated with the back plate, the part comprising a coupling element for connecting to each other it can.

  The support of the present invention is configured to surround the patient's body and, in use, ensure that the compression member applies force in a predetermined location or in a predetermined direction on the patient's body. The location corresponds to the lower sternum and the direction is generally perpendicular to the patient's chest surface. In one embodiment, the support of the present invention is symmetric about a longitudinal axis with respect to the patient. Patient positioning with respect to the support is partly or completely an intrinsic property of the support. As described above, positioning with respect to the width of the patient is performed by bringing the side of the support into close contact with the side of the patient and thus adapting the area of the patient's receiving surface to the actual patient size. Positioning with respect to the length of the patient can be facilitated by a figure of the support or other display means, a strap or the like.

  The support of the present invention can be easily adapted to patients of different body shapes and sizes by changing the distance between the back plate and the seat of the compression member, in addition to the adaptation of the width described above.

  The chest compression system can be any system suitable for compressing the patient's chest, such as pneumatic, hydraulic, or electrically driven piston, bladder. The chest compression member may be secured to the patient's chest by a fastening device such as tape or vacuum, or may simply be in contact with the chest without being secured to the chest.

  The support of one embodiment of the present invention is attached to the patient by first placing the back plate under the patient's back, then covering the front with the patient and joining the back plate to the front with the sides. The The lower edge of the side is shifted to contact the patient or lowered until it is placed at the desired distance from the patient's side and fixed in place. Finally, the seat of the compression member is placed at a desired distance from the patient's chest and secured in place. Further, the order of the above steps can be changed. For example, the leg portion may be shifted toward the patient after the seat portion is set in a correct position.

  In one embodiment of the invention, the leg comprises an adhesive or high friction material at the lower end to ensure positioning on the patient's body.

  In one embodiment of the invention, the seat comprises a clamping device for a compression member configured to ensure that the compression force acts in a direction substantially perpendicular to the patient's chest. In one embodiment of the present invention, the compression member is integral with the seat and the seat is attached to the front in a manner that ensures that the compression force acts in a direction substantially perpendicular to the patient's chest.

  In one embodiment of the invention, the support comprises a strap that correctly positions the patient in the longitudinal direction.

  In one embodiment, the seat of the compression member comprises a lateral plate that is disposed substantially parallel to the back plate when the support is deployed. Thus, the support surrounds the patient with a square. As described above, the width and height of this square can be adjusted for each patient.

  In a variant of this embodiment, the leg-shaped side part is rotatably fixed to the front part and comprises a coupling element for coupling to the back plate. The legs are telescoping and the connection between the legs and the back plate is adjustable. In one embodiment, the legs are interconnected such that when one leg is adjusted laterally, the other leg is adjusted laterally as well. In this embodiment of the invention, the compression member is firmly fixedly connected to the transverse plate in a position that allows it to be properly positioned on the patient's chest and exerts a force in the correct direction on the patient's chest.

  The support of the present invention can be implemented as a suitably designed frame, platform or the like.

  The support may be retractable, removable or foldable to minimize the volume of the system when not in use. Preferably, the support is preferably easy to assemble and use in order to minimize the time used for assembly and installation. This is illustrated in an exemplary embodiment.

  The present invention will now be described in detail by way of example apparatus with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing an outline of the support of the present invention. The support body includes a back plate 1, a front portion 2, and a side portion 3, the front portion includes a seat portion 4 for a compression member 5, and the side portion 3 includes a back plate 1 and a front portion 2. An adjustable distance d between the seat 4 and the back plate 1 can be provided. As used herein, the term “hinge” relates to any element that can connect at least two parts in a rotational manner. With the above elements, a slidable connection is also possible.

  FIG. 2 shows a first embodiment of the present invention. In this embodiment of the invention, the front comprises a transverse plate 10 on which a chest compression system is installed. In this embodiment of the invention, the chest compression system comprises a chest compression member 5 in the form of a piston, a transmission mechanism that transmits energy to the piston, a motor, and a power source (not shown). A configuration in which the chest compression system is external to the support and the support is mechanically attached to the compression member is possible within the scope of the claims of the present invention.

  In this embodiment of the invention, the transverse plate 10 is substantially rectangular and is joined to two transverse legs at the short edge. The connection between the side plate 10 and the side in the form of a leg can be effected by a hinge 11 and the leg can be rotated towards the side plate 10 to provide a storage position for the chest compression system and support. The leg is configured to hit the side of the patient's body. The leg part includes an upper part 12 and a lower part 13. The upper part 12 is connected to the horizontal plate 10 by a hinge, and is housed in a nested manner inside the lower part 13. With this arrangement, the leg length can be easily adapted to the height of the patient's rib cage. The device for fixing the legs to the desired length is not shown. The lower edge of the lower portion 13 is connected to a back plate 1 that can be placed under the patient's back and defines a patient receiving surface 100. The lower part 13 of the leg can be fixed to the back plate 1 or can be rotatably connected. In one embodiment of the present invention, the lower portion of the leg portion is rotatably and slidably connected to the back plate 1 (hinge 14).

  FIG. 3 shows in this embodiment of the invention the back plate 1 with a coupling device or sliding body 20 that can displace the lower edge of the leg on the back plate. These devices 20 allow the area of the patient receiving surface to be adjusted to the size of the patient by shifting the lower edge of the portion 13 towards the patient. Moreover, you may provide a single sliding body for every leg part.

  In this embodiment of the invention, the assembly formed by the front plate 10 and the legs 12, 13 provides a first part of the support and the back plate 1 provides a second part of the support. To do.

  FIG. 4 shows the support of one embodiment of the present invention in a folded storage state. The legs 12 and 13 are telescopically shortened, and the lateral plate 10 and the chest compression system are installed near the legs. The back plate 1 is installed under a first portion including the horizontal plate 1 and the legs 12 and 13. The support can be housed in a suitably sized bag and can be configured to allow the operator to grip the back plate when the back plate 1 is placed on the first portion and the bag is opened. In use, the operator places the back plate 1 under the patient and then grabs the first part with a handle (not shown). The legs 12 and 13 are rotated by a spring device, by gravity, or by a combination of both, and rise from the horizontal plate 10. The leg parts 12 and 13 extend and become the maximum length. This movement can be controlled, for example, by a release mechanism connected to the handle. The first element is then placed over the patient, coupled to the backplate 1 and adjusted to the patient's size.

  In one embodiment of the invention (not shown), the upper and lower legs 12, 13 of the legs can be separated into two independent parts. One includes a horizontal plate 10 on which the above-described device is mounted, and one includes a lower portion of the leg portion 13 and the back plate 1. Each independent part can be folded flat to easily store the device.

  FIG. 5 shows a second embodiment of the present invention. In this embodiment, the chest compression system is installed in the main body 30. The upper portion of the leg 12 is rotatably connected to the body 30 by a hinge 31 or similar device. The hinges 31 are located near each other and are interconnected in one embodiment of the invention. The upper and lower portions of each leg (12 and 13 respectively) are also rotatably interconnected by a hinge 32. Hinges 31 and 32 also fix body 30 at a predetermined distance from backplate 1 in one embodiment of the invention. The lower part of each leg is connected to the back plate 1 so as to be rotatable and slidable. The device can be separated into first and second parts in the manner described in connection with FIGS.

  As described above, the support of the present invention can be provided with a device that ensures symmetry with respect to the longitudinal direction of the patient when adjusting the height and width. These devices can include gears, rods, ribbons, and the like.

  Although various features of the invention have been described in connection with various embodiments, other features may be combined in other ways to provide other embodiments of the invention (e.g., the support is a body 30 and telescoping legs).

  FIG. 7 shows a third embodiment of the invention in which the block 30 is provided with a rotatable and slidable element 40 and is slidable by the connection 14 with the lower part of the leg 13 and the plate 1 but cannot be rotated. An embodiment is shown.

  FIG. 8 shows a third embodiment of the invention in which the front part comprises a body 30 with means for adjusting the distance between the seat 4 for the compression member 5 and the back plate 1. In this embodiment, the legs 50 are non-extensible and are slidably connected to the backplate 1 and can be fixed in various positions, providing an adjustable area of the patient receiving surface.

It is a block diagram of the present invention. It is a perspective view of the unfolded state of the 1st Embodiment of this invention. It is a figure of the back board of the said 1st Embodiment of this invention. It is a figure of the folded state of the said 1st Embodiment of this invention. It is a figure of the expansion | deployment state of the 2nd Embodiment of this invention. It is a figure of the folded state of the said 2nd Embodiment of this invention. It is a figure of the 3rd Embodiment of this invention. It is a figure of the 4th Embodiment of this invention.

Claims (15)

A support for use with a chest compression system, comprising a back plate, a front part, and a side part, the front part comprising a seat for a compression member;
A support that is arranged to provide an adjustable spacing between the seat and the backplate.   The support according to claim 1, wherein the back plate has a patient receiving surface with an adjustable region.   Support according to claim 1, characterized in that the side or the front comprises a rotary, telescopic or sliding device that provides the adjustable spacing.   The support according to claim 1, wherein the side portion is slidably connected to the back plate to provide the adjustable region.   The support according to claim 1, wherein the back plate comprises an element that allows the side to rotate.   The support according to claim 1, wherein the side portion includes two legs each having an adjustable length.   The support according to claim 6, further comprising an element that, when the length of one leg is changed, ensures that the length of the other leg is changed as well.   The side part is fixed to the front part or an integrated leg part, and a coupling element for coupling to the back plate, or the leg part fixed to the back plate or an integrated part part and A coupling element for coupling to a front plate, or a leg comprising an upper part fixed to or integrated with the front plate and a lower part fixed to or integrated with the back plate; 2. Support according to claim 1, characterized in that it comprises a coupling element for connecting to each other.   The support according to claim 1, wherein the compression member can surely apply a predetermined force to a predetermined location on a patient's body, and the force has a predetermined direction.   2. Support according to claim 1, characterized in that it is symmetrical about the longitudinal axis with respect to the patient.   2. Support according to claim 1, characterized in that it comprises an element for controlling the longitudinal positioning of the support on the patient, such as a strap.   Support according to claim 1, characterized in that the chest compression system comprises a pneumatic, hydraulic or electrically driven piston or bladder.   Support according to claim 1, characterized in that the side part is provided with an adhesive or high friction material at the lower end part to ensure positioning on the patient's body.   2. Support according to claim 1, characterized in that it is retractable, detachable or foldable to minimize the volume of the system when not in use.   A chest compression system comprising the support according to any one of claims 1 to 14.

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