Shoulder Reduction Aid

Abstract

The present invention belongs to the field of shoulder joint reduction auxiliary tools, and specifically relates to a shoulder joint reduction auxiliary device. The reduction auxiliary device includes a fixing part for fixing the patient's arm, and the fixing part is respectively provided with a forearm restraint belt tied to the patient's forearm and an upper arm restraint belt tied to the patient's upper arm. The front end of the forearm restraint belt forms a tight stop fit with the patient's wrist joint or palm, and the front end of the upper arm restraint belt forms a tight stop fit with the patient's elbow joint; the front end of the fixing part is fixedly connected to a first handle that can be held by the patient's palm, and the front of the first handle is fixedly connected to a second handle that can be held by the rescuer's palm, and the first handle and the second handle are both arranged on the extension line of the patient's affected arm. The present invention is easy to use, and a single person can provide the traction force required for shoulder joint reduction, thereby saving manpower while effectively ensuring a high success rate of shoulder joint reduction, which is conducive to clinical use.

Description

Technical Field

[0001] The invention belongs to the field of shoulder joint repositioning auxiliary tools, and in particular relates to a shoulder joint repositioning auxiliary device. Background Art

[0002] Joint dislocation, also known as dislocation, refers to the loss of the normal position of the upper and lower bone ends that make up the joint, resulting in dislocation. Among joint dislocation cases, shoulder dislocation is the most common, accounting for about 50% of joint dislocations in the whole body. This is related to the anatomical and physiological characteristics of the shoulder joint, such as the large humeral head, shallow and small glenoid cavity, loose joint capsule, weak tissue in the front and lower part of the joint, large range of joint movement, and even more opportunities to be subjected to external forces. Shoulder dislocation often occurs in young and middle-aged people, more men, and is mostly caused by violence. The clinical manifestations of shoulder dislocation are: first, severe pain in the shoulder joint, second, loss of normal shoulder joint movement, and third, deformity of the shoulder joint. After the shoulder dislocation, soft tissues such as the shoulder capsule, ligaments, articular cartilage and muscles are also damaged. In addition, swelling around the joint may be accompanied by hematoma. If it is not reset in time, it may lead to hematoma organization and joint adhesion problems, causing the shoulder joint to lose function to varying degrees. Considering the current shortage of emergency resources, the relatively easy-to-implement pedaling method is mostly used for the reduction of shoulder dislocation in emergency. That is, the patient with shoulder dislocation lies on his back beside a low bed, and the rescuer stands on the affected side of the patient with shoulder dislocation; holding the forearm of the affected limb with both hands, and using the heel to push in the dislocated armpit, the rescuer uses both hands and feet to pull the affected limb while using the pedal, and slowly rotates the upper arm outward to reduce the position. However, even the pedaling method, which is the simplest and most mature operation method, cannot guarantee the success rate of shoulder reduction. The reasons are: First, the traditional pedaling method was developed based on the need for fewer people. The original intention was that a single person could achieve emergency reduction operation, but in actual use, there is often a problem of insufficient pulling force, which leads to the failure to guarantee the success rate of reduction. In actual operation, rescuers often look for assistants so that multiple people can grab the patient's palm and pull it together to ensure the pulling force, but this leads to the waste of precious manpower. Secondly, it is precisely because shoulder joint reduction requires a huge pulling force, and in actual operation, when the rescuer grabs the patient's arm and pulls, 90% of it relies on the friction between the two people's hands. It is obviously unrealistic to rely solely on friction to generate the above-mentioned huge pulling force. The situation of slippage and interruption of the reduction process due to insufficient friction frequently occurs, which is also one of the important reasons why the success rate of conventional pedaling method is not high. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a shoulder joint reduction aid with a reasonable structure and practicality. The device is easy to use and can provide the traction force required for shoulder joint reduction by a single operator, thereby saving manpower while effectively ensuring a high success rate of shoulder joint reduction, which is beneficial to clinical use.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A shoulder joint reduction aid, characterized in that: the reduction aid comprises a fixing part for fixing a patient's arm, on which a forearm restraint belt tied to the patient's forearm and an upper arm restraint belt tied to the patient's upper arm are respectively arranged, the front end of the forearm restraint belt forms a tight-fitting limit stop with the patient's wrist joint or palm, and the front end of the upper arm restraint belt forms a tight-fitting limit stop with the patient's elbow joint; the front end of the fixing part is fixedly connected to a first handle that can be held by the patient's palm, and the front of the first handle is fixedly connected to a second handle that can be held by the rescuer's palm, and the first handle and the second handle are both arranged on the extension line of the patient's affected arm.

[0006] Preferably, the fixing part includes a fixing belt with adjustable length, and the fixing belt is composed of two belts disposed on both sides of the human arm and the length direction of the belt extends along the length direction of the human arm; an upper arm base plate and a forearm base plate are respectively arranged at the elbow joint and wrist joint of the human arm; the upper arm restraint belt is arranged at the upper arm base plate, and the forearm restraint belt is arranged at the forearm base plate.

[0007] Preferably, the forearm base plate and the upper arm base plate both comprise a rectangular plate whose length direction is perpendicular to the length direction of the fixing belt, an arc-shaped groove is recessed on the rectangular plate, and the groove cavity of the arc-shaped groove constitutes a rest cavity for the upper arm or forearm of a human body to rest; threading holes are provided at the groove edges on both sides of the arc-shaped groove perpendicular to the board direction of the rectangular plate, the upper arm restraint belt and the forearm restraint belt are Velcro strips, and both ends of the upper arm restraint belt and the forearm restraint belt are respectively passed through two threading holes on the bottom surface of the corresponding rectangular plate, and then the two ends of the corresponding restraint belt are adhered to each other just above the rectangular plate.

[0008] Preferably, the first handle and the second handle are both U-shaped in appearance, and the notches of the two handles are opposite to each other and the two handles are located on the same plane.

[0009] Preferably, the first handle and the second handle are both U-shaped in appearance, and the grooves of the two handles are arranged opposite to each other; the groove edge of the first handle is fixedly connected to the first circular plate, and the groove edge of the second handle is fixedly connected to the second circular plate, the first circular plate and the second circular plate are coaxial with each other and the plate surfaces are arranged parallel to each other; the adjacent mating surfaces of the first circular plate and the second circular plate are the inner side surfaces of the two, and an edge is axially extended from the outer edge of the first circular plate to the outer edge of the second circular plate, and the edge extends to the outer side surface of the second circular plate, so that a rotational fit is formed between the first circular plate and the second circular plate while limiting the axial distance of the second circular plate from the first circular plate; a ratchet is coaxially convexly provided on the inner side surface of the second circular plate, and a ratchet is correspondingly arranged on the inner side surface of the first circular plate to limit the second circular plate to unidirectional rotation, and the unidirectional rotation direction of the second circular plate is the same as the arm rotation direction when the patient's shoulder joint is repositioned.

[0010] Preferably, the pawls are in four groups and are evenly distributed in sequence along the axis of the ratchet.

[0011] Preferably, the first handle and the second handle are both in the shape of a "U" letter, and the grooves of the two handles are arranged opposite to each other; the groove edge of the first handle is fixedly connected to the first circular plate, and the groove edge of the second handle is fixedly connected to the second circular plate, the first circular plate and the second circular plate are coaxial with each other and are arranged in parallel with each other; the adjacent mating surfaces of the first circular plate and the second circular plate are the inner side surfaces of the two, and an edge is axially extended from the outer edge of the first circular plate to the outer edge of the second circular plate, and the edge extends to the outer side surface of the second circular plate, so that a rotational fit is formed between the first circular plate and the second circular plate while limiting the axial distance of the second circular plate from the first circular plate; a cylindrical boss is coaxially convexly provided on the inner side surface of the second circular plate, and a positioning hole is arranged on the outer cylindrical surface of the boss, and each positioning hole is evenly distributed in sequence along the circumference of the boss; a countersunk hole for the boss to be placed is coaxially recessed on the inner side surface of the first circular plate, and a pin hole is arranged through the wall of the countersunk hole. After the positioning pin passes through the pin hole, it forms a hole-axis plug-in positioning fit with the corresponding positioning hole.

[0012] Preferably, the first handle and the second handle are provided with anti-slip patterns for increasing gripping friction.

[0013] The beneficial effects of the present invention are:

[0014] 1) Through the above scheme, on the one hand, through the design of the fixing part, the upper arm restraint belt and the forearm restraint belt cooperate with the fixing part to form an integrated structure, thereby realizing the integrated joint fixing function of the patient's upper arm and forearm. On the other hand, the front end of the fixing part is fixedly connected to the second handle, and the front end of the second handle is sequentially fixedly connected to the first handle, which transforms the traditional rescuer's hand grasping the patient's hand into the rescuer holding the first handle and the patient holding the second handle, thereby replacing the traditional simple friction between the palms with a stronger gripping force, and its load-bearing capacity and force-applying capacity are higher, and it can be operated by a single person. In addition, the integrated structure formed by the fixing part, the upper arm restraint belt and the forearm restraint belt can tightly fix the patient's entire arm, so it can better cooperate with the first handle and the second handle, making the force angle more humane, and finally achieving the shoulder joint reduction operation requirements with a high success rate.

[0015] 2) As for the fixing part, its design purpose is to form a connecting matrix for connecting the upper arm restraint belt, the lower arm restraint belt and the second handle. Therefore, in actual operation, a flat bottom plate structure may be used to form the fixing part, and the second handle, the upper arm restraint belt and the lower arm restraint belt are all fixed on the flat bottom plate. The present invention preferably uses a fixing belt with adjustable length to form the fixing part. The specific structure can refer to the adjustable belt body that does not produce elastic telescopic deformation such as a school bag belt, and such belt body can be purchased on the market. Since the fixing belt is relatively soft, it is easy to fold, and has higher storage and portability, which is conducive to storage and practical use.

[0016] 3) The function of the forearm base plate and the upper arm base plate is to connect the fixing part with the corresponding restraint belt to meet the reliable restraint requirements for the corresponding parts of the patient's arm. The forearm base plate and the upper arm base plate both include rectangular plates with arc-shaped grooves. On the one hand, the groove cavity structure of the arc-shaped grooves naturally forms restraint grooves and positioning grooves, making it easier for patients to consciously put their arms in; on the other hand, through the threading holes arranged on both sides of the arc-shaped grooves, the upper arm restraint belt and the forearm restraint belt can easily realize the function of quickly fixing the patient's arm and the corresponding base plate, which is extremely convenient to use.

[0017] 4) For the first and second in command, this can be achieved in the following three ways:

[0018] In the first group of methods, the first handle and the second handle are merely simple fixing parts, that is, the first handle and the second handle are fixed to each other to form an integral structure, and the first handle and the second handle have opposite notches, thus forming a "mouth"-shaped structure located in the same plane. During operation, the rescuer holds one end of the "mouth"-shaped structure, and the patient holds the other end of the "mouth"-shaped structure after the arm is fixed, so that the pulling and twisting effect of the patient's arm can be achieved through the force conductivity of the rigid structure of the "mouth"-shaped structure.

[0019] The second and third methods actually adopt the same principle, that is, when the patient's arm is pulled and twisted, it is divided into two stages: within the range of twisting, the twisting of the first stage is useless work, the purpose is to twist the patient's arm to a position where it cannot continue to twist in the natural state; and the forced twisting of the second stage combined with the pulling force is the reset operation produced by overcoming the natural limit of the human body. This leads to a problem: due to the useless work of the first stage, once the first handle and the second handle are fixed to each other, the rescuer must operate the first handle to rotate a large enough angle each time to normally reset the patient's elbow joint. Not only is the force angle not easy to grasp, but the control requirements for the precision of the operation are also high. In view of this, the second and third schemes of the present invention both adopt the design concept that the first handle can rotate relative to the second handle. Whether it is a ratchet pawl mechanism or a positioning pin plug-in structure, whenever the patient's arm is fixed, the first handle is kept still first, and the second handle is twisted manually, so that the patient's affected arm is naturally twisted to the limit. After that, the first handle is operated to rotate, which drives the second handle to twist. At this time, it is obvious that in the normal resetting process, the first handle only needs to make the twisting angle required for the second stage of twisting. The twisting angle required for the first stage can be completely completed by relying solely on the independent rotation of the second handle and the second circular plate, which is more labor-saving. At the same time, the force angle can be controlled, and the operation is extremely convenient.

[0020] 5) The purpose of arranging the anti-slip pattern is to utilize the friction between the anti-slip pattern and the human palm, and cooperate with the gripping strength of the patient and the rescuer, to further increase the reliability of the rescuer's gripping force and the patient's gripping force reliability, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a usage state diagram of the present invention;

[0023] Figure 3 for Figure 2 AA section diagram of ;

[0024] Figure 4 It is a three-dimensional diagram of the matching state of the first handle, the first circular plate, the second circular plate and the second handle;

[0025] Figure 5 It is a cross-sectional view of the matching state of the upper arm base plate and the upper arm restraint belt.

[0026] The actual correspondence between the reference numerals and component names of the present invention is as follows:

[0027] a- patient's affected arm b- rescuer's hand

[0028] 10- Lower arm restraint belt 20- Upper arm restraint belt 30- First handle

[0029] 31-first circular plate 31a-edge 31b-pawl

[0030] 32- second circular plate 32a- ratchet

[0031] 40-Second handle 50-Fixed belt

[0032] 61- upper arm bottom plate 62- lower arm bottom plate 63- threading hole

[0033] 70-anti-slip texture DETAILED DESCRIPTION

[0034] For ease of understanding, the attached Figure 1-5 The specific embodiment shown in the figure further describes the specific structure and working mode of the present invention as follows:

[0035] The specific embodiments of the present invention refer to Figure 1-5 As shown, the ratchet pawl matching structure of the first circular plate 31 and the second circular plate 32 is shown, and its main components include the first handle 30, the first circular plate 31, the second circular plate 32, the second handle 40, the fixing part, the upper arm bottom plate 61, the upper arm restraint belt 20, the forearm bottom plate 62 and the forearm restraint belt 10. Among them:

[0036] The first handle 30, the first circular plate 31, the second circular plate 32 and the second handle 40 together constitute the front end structure of the present invention. Figure 3-4 In actual assembly, the first handle 30 and the second handle 40 are both U-shaped, and the notches of each handle are fixed to the outer side of the corresponding circular plate, while the inner side of the first circular plate 31 and the second circular plate 32 constitute the mating surface. Figure 1 It can be seen from the structure shown that the outer edge of the first circular plate 31 is arranged with a rim 31a toward the outer edge of the second circular plate 32, and the rim 31a eventually extends to form an inner flange structure, so that the outer edge of the second circular plate 32 is completely covered in the rim 31a of the first circular plate 31, so that the first circular plate 31 and the second circular plate 32 form a coaxial rotation fit, and there is no axial separation between the two. On this basis, a ratchet 32a is coaxially convexly provided on the inner side surface of the second circular plate 32, and a ratchet pawl 31b is correspondingly arranged on the inner side surface of the first circular plate 31, so as to limit the second circular plate 32 to unidirectional rotation. The unidirectional rotation direction of the second circular plate 32 is the same as the arm rotation direction of the patient when the shoulder joint is reset. In other words, when the second circular plate 32 generates a force to twist the patient's affected arm a in the direction of resetting and twisting, the second circular plate 32 can move freely and independently, and if the first circular plate 31 wants to generate the above-mentioned force, it can only move together with the second circular plate 32 and even the entire device due to the unidirectional limitation of the ratchet pawl cooperation.

[0037] As for the fixing part, it includes a fixing belt 50. The fixing belt 50 is actually a common nylon adjustment belt or backpack strap structure, so that the length can be adjusted according to the situation, so as to adapt to patients with different arm lengths. The upper arm bottom plate 61 and the lower arm bottom plate 62 connecting the two fixing belts 50 are arranged between the two fixing belts 50. The upper arm bottom plate 61 is provided with a threading hole 63 for the upper arm restraint belt 20 to pass through. For details, refer to Figure 5 The cooperation mode of the forearm base plate 62 and the forearm restraint belt 10 is similar.

[0038] To facilitate further understanding of the present invention, the specific working process of the present invention is given as follows:

[0039] First, the patient with shoulder dislocation lies on his back beside a low bed, and the rescuer stands on the affected side of the patient with shoulder dislocation. After the fixing belt 50 of the present invention is adaptively adjusted in the length direction, the upper arm restraint belt 20 is fixed to the patient's upper arm, and the forearm restraint belt 10 is fixed to the patient's forearm. At this time, the present invention is properly pulled, and the position of the upper arm restraint belt 20 is limited by the patient's elbow joint, and the position of the forearm restraint belt 10 is limited by the patient's wrist joint or palm. The rescuer indicates that the patient's palm is held at the second handle 40, and the rescuer's hand b holds the first handle 30. At this time, the patient's affected arm a is flat, and the overall operation state is referred to. Figure 2Afterwards, the rescuer first rotates the second circular plate 32 so that the second circular plate 32 can Figure 3 As shown, the second handle 40 and the patient's affected arm a rotate naturally in the clockwise direction; when the patient's affected arm a rotates naturally to the limit, the second circular plate 32 stops rotating. After that, the rescuer pushes the dislocated armpit with the heel, and exerts force with the hands and feet at the same time, while pushing with the foot, pulling the affected limb through the first handle 30, and rotating the first handle 30 in the same clockwise direction. Due to the existence of the ratchet and pawl structure, the first handle 30 will cause the second handle 40 and even the patient's affected arm a to rotate synchronously, and the patient's elbow joint can be reset. After the reset is completed, the present invention is removed, and the first handle 30 is rotated in the opposite direction to the reset position for the next use.

[0040] Of course, the above is only one specific embodiment of the present invention. In actual use, the first handle 30 and the second handle 40 may be directly fixed, or the first handle 30 and the second handle 40 may be plugged and fixed to each other through positioning pins. In actual operation, the replacement of the fixing belt 50 with the same material, or the arrangement of each handle with other similar functional structures and other conventional structural changes shall be regarded as equivalent or similar designs and fall within the protection scope of the present invention.

Claims

1. A shoulder joint reduction aid, characterized in that: The repositioning aid comprises a fixing part for fixing the patient's arm, wherein a forearm restraint belt (10) tied to the patient's forearm and an upper arm restraint belt (20) tied to the patient's upper arm are arranged on the fixing part respectively, the front end of the forearm restraint belt (10) forms a tight stopper with the patient's wrist joint or palm, and the front end of the upper arm restraint belt (20) forms a tight stopper with the patient's elbow joint; the front end of the fixing part is fixedly connected to a first handle (30) that can be held by the patient's palm, and the front of the first handle (30) is fixedly connected to a second handle (40) that can be held by the rescuer's palm, and the first handle (30) and the second handle (40) are both arranged on the extension line of the patient's affected arm; The first handle (30) and the second handle (40) are both U-shaped in appearance, and the grooves of the two handles are arranged opposite to each other; the groove edge of the first handle (30) is fixedly connected to the first circular plate (31), and the groove edge of the second handle (40) is fixedly connected to the second circular plate (32); the first circular plate (31) and the second circular plate (32) are coaxial with each other and arranged with their plate surfaces parallel to each other; the adjacent mating surfaces of the first circular plate (31) and the second circular plate (32) are the inner side surfaces of the two, and the outer edge of the first circular plate (31) is axially extended toward the outer edge of the second circular plate (32) with a rim (31a) The edge (31a) extends to the outer side surface of the second circular plate (32), so that the first circular plate (31) and the second circular plate (32) form a swivel fit and limit the second circular plate (32) from axially moving away from the first circular plate (31); a ratchet (32a) is coaxially convexly provided on the inner side surface of the second circular plate (32), and a ratchet pawl (31b) is correspondingly arranged on the inner side surface of the first circular plate (31) to limit the second circular plate (32) to unidirectional rotation, and the unidirectional rotation direction of the second circular plate (32) is the same as the arm rotation direction of the patient when the shoulder joint is reset; Anti-slip patterns (70) for increasing gripping friction are arranged on the first handle (30) and the second handle (40).

2. A shoulder joint reduction aid according to claim 1, characterized in that: The fixing portion comprises a fixing belt (50) of adjustable length, wherein the fixing belt (50) is composed of two belts disposed on both sides of a human arm and the length direction of the belts extends along the length direction of the human arm; an upper arm bottom plate (61) and a lower arm bottom plate (62) are disposed at the elbow joint and the wrist joint of the human arm, respectively; the upper arm restraint belt (20) is disposed at the upper arm bottom plate (61), and the lower arm restraint belt (10) is disposed at the lower arm bottom plate (62).

3. A shoulder joint reduction aid according to claim 2, characterized in that: The forearm bottom plate (62) and the upper arm bottom plate (61) both comprise a rectangular plate with a length direction perpendicular to the length direction of the fixing belt (50), an arc-shaped groove is concavely provided on the rectangular plate, and the groove cavity of the arc-shaped groove constitutes a resting cavity for the upper arm or the forearm of a human body to rest; threading holes (63) are provided at the groove edges on both sides of the arc-shaped groove perpendicular to the plate surface direction of the rectangular plate, and the upper arm restraint belt (20) and the forearm restraint belt (10) are Velcro strips, and the two ends of the upper arm restraint belt (20) and the forearm restraint belt (10) are respectively passed through the two threading holes (63) at the bottom surface of the corresponding rectangular plate, and the two ends of the corresponding restraint belt are then bonded to each other directly above the rectangular plate.

4. The shoulder joint reduction aid according to claim 1, characterized in that: The ratchet pawls (31b) are in four groups and are evenly distributed in sequence around the axis of the ratchet wheel (32a).

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