CN116763521B

CN116763521B - Shoulder joint restorer

Info

Publication number: CN116763521B
Application number: CN202310918166.0A
Authority: CN
Inventors: 张腾; 韩巍; 王军强; 蒋协远; 贾曌
Original assignee: Beijing Jishuitan Hospital Affiliated To Capital Medical University; Beijing Jishuitan Orthopedic Robot Engineering Research Center Co ltd
Current assignee: Beijing Jishuitan Hospital Affiliated To Capital Medical University; Beijing Jishuitan Orthopedic Robot Engineering Research Center Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-03-15
Anticipated expiration: 2043-07-25
Also published as: CN116763521A

Abstract

The invention belongs to the technical field of medical appliances, and discloses a shoulder joint restorer. The shoulder joint restorer comprises a traction assembly, a sliding piece and an elbow sleeve, wherein the traction assembly is used for supporting the armpit of the affected side and pushing the humerus. The sliding piece is arranged on the traction assembly and can slide relative to the traction assembly along a preset arc track. The elbow sleeve is used for sleeving the elbow joint to fix the elbow joint, and the elbow sleeve is mounted on the sliding piece and can rotate around the axis of the humerus relative to the sliding piece. The doctor realizes the distal humerus traction and extrapolation operation by adjusting the traction component. The sliding piece slides along a preset arc track to realize the operation of abduction and adduction of the humerus. The elbow sleeve rotates relative to the sliding piece to realize the external rotation operation of the humerus. Finally, the restorer can realize the restoration of the shoulder joint. The shoulder joint reposition device improves the stability and reliability of the dislocation reposition operation of the shoulder joint, is beneficial to doctors to grasp the angle and degree of the reposition operation, reduces the learning difficulty of the operation and relieves the pain of patients in the reposition process.

Description

Shoulder joint restorer

Technical Field

The invention relates to the technical field of medical instruments, in particular to a shoulder joint restorer.

Background

The shoulder joint is the part connecting the upper limb and the trunk, and includes the scapula joint, the humerus and the joint capsule. In order to express the axis along which the displacement track of the bone moves when the joint moves, the human body can be provided with three typical mutually perpendicular axes, namely, the sagittal axis is a horizontal line in the front-back direction, the coronal axis is a horizontal line in the left-right direction, the vertical axis is a line mutually perpendicular to the horizontal line in the up-down direction, and the shoulder joint is a typical multi-axis ball socket and can perform triaxial movement. Because the mobility of the shoulder joint is large and the surrounding joint capsule is relatively loose, the stability of the shoulder joint is insufficient and dislocation is liable to occur.

The shoulder joint needs to be reset in time to prevent further damage after dislocation, and the conventional resetting method in the prior art comprises a suspension method, a pedal method and the like. Wherein, the suspension method is as follows: the arm of the patient is suspended by adopting a weight, so that the muscle of the arm is relaxed and then reset; the pedal method is as follows: the doctor straightens the knee joint to prop the heel in the armpit of the wounded side of the patient, and the doctor grabs the arm of the patient to pull and rotate, so that the shoulder joint is reset.

In the existing conventional resetting method, the time used for the suspension method is long, and other conventional resetting methods require a stable resetting technology for a doctor, once the operation force and the operation angle of the doctor are improper, the shoulder joint is even damaged when the successful resetting is serious, the learning time of the doctor on the shoulder joint resetting method is long, the method is difficult to keep in a stable state, and therefore an auxiliary instrument is required to cooperate with the shoulder joint resetting to reduce the operation difficulty of the shoulder joint resetting.

Disclosure of Invention

The invention aims to provide a shoulder joint restorer, which solves the problems that the shoulder joint restoration operation difficulty is high, the operation stability is difficult to ensure and the restoration operation learning difficulty is high in the prior art.

To achieve the purpose, the invention adopts the following technical scheme:

the present invention provides a shoulder joint restorer, comprising:

the top end of the traction assembly is used for traction and distraction of the affected limb shoulder joints;

the sliding piece is arranged on the traction assembly and can slide relative to the traction assembly along a preset arc track, and an opening of the preset arc track faces to the top end of the traction assembly;

an elbow sleeve for nesting an elbow joint to secure the elbow joint, the elbow sleeve being mounted on the slider and the elbow sleeve being rotatable about a humeral axis relative to the slider.

As an alternative technical scheme of shoulder joint restorer, be provided with the fixed disk on the slider, elbow telescopic side is provided with the rolling disc, the fixed disk with the rolling disc passes through the connecting axle and rotates to be connected, the connecting axle extends along vertical direction, the fixed disk with the terminal surface that rotates the relative of dish all is equipped with terminal surface tooth structure, the fixed disk with the rolling disc passes through terminal surface tooth structure meshing.

As an alternative technical scheme of shoulder joint restorer, the elbow sleeve has and is L type and both ends link up the elbow chamber that holds that sets up, the elbow holds the chamber and is used for holding the elbow joint, the indent side chamber wall in elbow holds the chamber is equipped with the intercommunication elbow holds the gap of chamber both ends port, the elbow sleeve in the opposite both sides in gap forms two and tightens up the portion, two tighten up the portion can open relatively in order to enlarge the gap supplies the elbow joint gets into the elbow holds the chamber, two tighten up the portion can close relatively through the connecting piece the gap.

As an alternative technical scheme of shoulder joint restorer, the bottom of traction assembly is equipped with the slip passageway, the slider with the slip passageway is the arc, the arc with predetermine arc orbit adaptation, the slider slides and wears to locate the slip passageway.

As an alternative technical scheme of shoulder joint restorer, the traction assembly includes armpit support piece and the flexible subassembly that is connected, the armpit support piece is used for supporting the armpit and thrusts the humerus, the flexible subassembly includes first slide bar and second slide bar, the slider is installed on the first slide bar, the armpit support piece is installed second slide bar upper end, first slide bar with second slide bar sliding connection is in order to adjust traction length.

As an optional technical scheme of shoulder joint restorer, the second slide bar lower extreme wears to locate the inside of first slide bar, shoulder joint restorer still includes adjusting part, adjusting part includes:

the gear is rotatably arranged on the first sliding rod, a rack part is arranged on the second sliding rod along the vertical direction, and the gear is meshed with the rack part;

and the gear is coaxial with the rotating shaft and fixedly connected with the rotating shaft.

As an alternative technical scheme of the shoulder joint restorer, the lower end of the second sliding rod penetrates through the inside of the first sliding rod, and a plurality of clamping grooves are arranged on the outer wall of the second sliding rod side by side;

the shoulder joint restorer further comprises a clamping piece, wherein the clamping piece is rotatably installed on the first sliding rod, so that one end of the clamping piece is selectively clamped in any clamping groove.

As an alternative technical scheme of the shoulder joint restorer, the shoulder joint restorer further comprises a restoring piece, wherein the restoring piece is used for enabling the clamping piece to be kept or restored to be clamped with the second sliding rod.

As an alternative technical scheme of shoulder joint restorer, the middle part of chucking spare with first slide bar rotates to be connected, the chucking spare first end with second slide bar joint, the second end of chucking spare is equipped with grafting portion, the restoring member is the spring, the spring housing is established on the grafting portion and both ends respectively in first slide bar with chucking spare butt.

As an alternative technical scheme of the shoulder joint restorer, the armpit support piece comprises an air bag, an air inlet hole communicated with an air pump is formed in the air bag, and two opposite sides of the air bag can expand outwards in an air inlet state to push and restore the humerus.

As an alternative technical scheme of shoulder joint restorer, the gasbag includes support upper wall, lateral wall, supports lateral wall and gasbag base, support the upper wall the lateral wall support the lateral wall with the gasbag base encloses jointly to establish and forms the gasbag chamber, the gasbag base with the second slide bar is connected, the inlet port sets up on the lateral wall and with gasbag chamber intercommunication, support the lateral wall by flexible extensible material make the support upper wall by soft inextensible material makes, the gasbag base is made by hard material.

The beneficial effects are that:

the invention provides a shoulder joint restorer, which comprises a traction assembly, a sliding piece and an elbow sleeve, wherein the traction assembly is used for supporting an armpit of a patient side and pushing a humerus. The sliding piece is arranged on the traction assembly and can slide relative to the traction assembly along a preset arc track. The elbow sleeve is used for sleeving the elbow joint to fix the elbow joint, and is mounted on the sliding piece and can rotate around the axis of the humerus relative to the sliding piece. The doctor realizes the distal humerus traction and extrapolation operation by adjusting the traction component. The sliding piece slides along a preset arc track to realize the operation of abduction and adduction of the humerus. The elbow sleeve rotates relative to the sliding piece, so that the external rotation operation of the humerus is realized. Finally, the restorer can realize the restoration of the shoulder joint. By adopting the shoulder joint restorer, the stability and the reliability of the shoulder joint dislocation resetting operation can be improved, the doctor can grasp the angle and the degree of the resetting operation, the learning difficulty of the resetting operation is reduced, and the pain of a patient in the resetting process is relieved.

Drawings

FIG. 1 is a schematic view of a shoulder joint reducer according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an airbag according to an embodiment of the present invention;

FIG. 3 is a schematic view of a portion of a shoulder joint replacement device according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a shoulder joint replacement provided in an embodiment of the present invention;

fig. 5 is a schematic diagram of a part of a shoulder joint restorer according to an embodiment of the present invention;

FIG. 6 is a schematic view III of a portion of a shoulder joint replacement device according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a slider and elbow sleeve provided by an embodiment of the present invention;

FIG. 8 is a schematic view of an elbow sleeve according to an embodiment of the present invention;

fig. 9 is a schematic view of a shoulder joint restorer according to an embodiment of the present invention.

In the figure:

1. a traction assembly; 11. a first slide bar; 111. a receiving groove; 112. a mounting part; 12. a second slide bar; 121. a guide groove; 13. armpit supports; 131. supporting the upper wall; 132. a sidewall; 1321. an air inlet hole; 133. an airbag base; 134. a support sidewall; 14. a support base; 141. a sliding channel; 15. a guide rod;

2. a slider; 21. a fixed plate;

3. an elbow sleeve; 31. a rotating disc; 32. a fixing part; 33. a tightening part;

4. an adjustment assembly; 41. a gear; 42. a rotating shaft; 421. penetrating through holes; 43. a wrench; 44. a torsion member;

5. a clamping assembly; 51. a rotating shaft; 52. a clamping piece; 521. a plug-in part; 53. and (3) a spring.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 3, the present invention provides a shoulder joint restorer including a traction assembly 1, a slider 2 and an elbow sleeve 3, the top end of the traction assembly 1 being used for traction and distraction of a patient's shoulder joint; the sliding piece 2 is slidably arranged on the traction assembly 1, the sliding piece 2 can slide relative to the traction assembly 1 along a preset arc track, and an opening of the preset arc track faces the top end of the traction assembly 1; the elbow sleeve 3 is used for sleeving the elbow joint to fix the elbow joint, the elbow sleeve 3 is mounted on the slider 2, and the elbow sleeve 3 can rotate around the humerus axis relative to the slider 2.

The shoulder joint restorer provided by the invention comprises a traction component 1 capable of supporting armpits of a patient, wherein the traction component 1 is in sliding connection with a sliding piece 2, an elbow sleeve 3 is in rotary connection with the sliding piece 2, a doctor can adjust the traction component 1 to longitudinally traction the humerus of the patient through an adjusting component 4, a preset arc track of the sliding piece 2 is arranged to enable the injured side arm of the patient to slowly move along the preset arc track, the hand arm is led to be pulled to be more fit with the rotation of the elbow of the patient relative to the armpits and the shoulders through the preset arc opening towards the top end of the traction component 1, the injured side arm of the patient is gradually retracted to the inner side of the body, the humerus is retracted, the doctor holds the injured side arm of the patient to slowly rotate outwards, the elbow sleeve 3 rotates relative to the sliding piece 2 along with the outward rotation of the arm, and finally the shoulder joint can be realized. By adopting the shoulder joint restorer, the traction assembly 1, the sliding piece 2 and the elbow sleeve 3 which rotates are utilized to assist in completing the resetting operation, so that the operation is more stable and reliable, the doctor is helped to grasp the angle and degree of the resetting operation, the learning difficulty of the resetting operation is reduced, and the pain of a patient in the resetting process is relieved.

The bottom of the traction assembly 1 is provided with a sliding channel 141, the sliding piece 2 and the sliding channel 141 are arc-shaped, the arc is matched with a preset arc track, and the sliding piece 2 is arranged in the sliding channel 141 in a sliding way. By providing the slider 2 to slide in the slide passage 141, the bottom of the slide passage 141 supports the slider 2, improving the sliding stability of the slider 2; the sliding track of the sliding part 2 is in a preset arc track, and the elbow is attached to the armpit and the shoulder in a rotating mode.

The traction assembly 1 comprises an armpit supporting piece 13 and a telescopic assembly, wherein the armpit supporting piece 13 is used for supporting an armpit on the affected side and pushing a humerus, the telescopic assembly comprises a first sliding rod 11 and a second sliding rod 12, the sliding piece 2 is arranged on the first sliding rod 11, the armpit supporting piece 13 is arranged at the upper end of the second sliding rod 12, and the first sliding rod 11 and the second sliding rod 12 are connected in a sliding mode to adjust the traction length. The traction length of the armpit support piece 13 is adjusted by arranging the telescopic component so as to adapt to the resetting operation of arms of different patients, and the applicability is improved.

In this embodiment, the bottom end of the first sliding rod 11 is provided with a supporting seat 14, and the first sliding rod 11 is welded, integrally formed, or detachably connected with the supporting seat 14. The support base 14 is provided with a sliding channel 141, and the sliding member 2 slides in the sliding channel 141. The shoulder joint restorer further comprises a locking piece, a threaded hole communicated with the sliding channel 141 is formed in the supporting seat 14, an external thread is formed in the locking piece, the locking piece is in threaded connection with the supporting seat 14, and the end portion of the locking piece abuts against the sliding piece 2. By arranging the locking piece to press the sliding piece 2, the sliding of the sliding piece 2 is limited, and the position of the sliding piece 2 relative to the supporting seat 14 is fixed. Preferably, the threaded hole is provided at a central position of the support base 14, and the bottom surface of the support base 14 is preferably a plane.

The armpit support 13 includes an air bag provided with an air inlet hole 1321 communicating with an air pump, and opposite sides of the air bag can be expanded outwardly in an air intake state to support the push-reduction humerus. Through the gasbag that has inlet port 1321, when using shoulder joint restorer, open the air pump and slowly aerify, the gasbag expands gradually and exerts outside thrust for patient's humerus, helps shoulder joint to restore to the throne, and has improved the travelling comfort of using.

The air bag comprises a supporting upper wall 131, a side wall 132, a supporting side wall 134 and an air bag base 133, wherein the supporting upper wall 131, the side wall 132, the supporting side wall 134 and the air bag base 133 are enclosed together to form an air bag cavity, the air bag base 133 is connected with the second slide rod 12, an air inlet hole 1321 is formed in the side wall 132 and communicated with the air bag cavity, the supporting side wall 134 is made of a flexible and extensible material, the supporting upper wall 131 is made of a soft and inextensible material, and the air bag base 133 is made of a hard material. By the arrangement of the supporting side walls 134, the supporting upper wall 131 and the air bag base 133, the supporting upper wall 131 supports the patient's injured side armpit, the air bag base 133 is connected with the second slide bar 12, and the expansion is mainly concentrated on the supporting side walls 134 when the air bag is inflated, so that the air bag is further ensured to apply an outward thrust to the patient's humerus.

In this embodiment, the side wall 132 includes a front side wall and a rear side wall opposite to the front side wall, the support side wall 134 includes a left side wall and a right side wall opposite to the left side wall, the left side wall and the right side wall are attached to the armpit of the patient, the front side wall faces the front side of the body of the patient, the air inlet hole 1321 is formed in the front side wall, and the front side wall, the rear side wall, the left side wall and the right side wall are integrally connected. Wherein, the supporting sidewall 134 can be made of rubber, silica gel or polyolefin; the support upper wall 131 may be made of thermoplastic or latex material, and the airbag base 133 may be made of hard plastic or cemented carbide material; the materials of the front side wall and the rear side wall as well as the left side wall and the right side wall can be the same or different; preferably, the front side wall and the rear side wall are the same in material, and the left side wall and the right side wall are the same in material.

In this embodiment, the first sliding rod 11 is disposed on the outer layer, the second sliding rod 12 is disposed on the inner layer, and the lower end of the second sliding rod 12 is disposed inside the first sliding rod 11. In other embodiments, the first sliding rod 11 may be disposed on the inner layer, the second sliding rod 12 may be disposed on the outer layer, and the upper end of the first sliding rod 11 may be disposed inside the second sliding rod 12.

Further, the second slide bar 12 is provided with a guide groove 121, the first slide bar 11 is provided with a guide bar 15, the extending direction of the guide groove 121 is consistent with that of the second slide bar 12, the guide bar 15 is slidably inserted into the guide groove 121, the guide groove 121 and the guide bar 15 are arranged to play a guiding role, the precision and smoothness of the relative movement of the first slide bar 11 and the second slide bar 12 are improved, and the occurrence of clamping is avoided.

In this embodiment, the first slide bar 11 and the second slide bar 12 are both circular bars, the inside of the first slide bar 11 is provided with a sliding cavity, the sliding cavity is provided with a cavity wall extending along the axis direction of the first slide bar 11, the guide groove 121 penetrates through the outer wall of the second slide bar 12 along the horizontal direction, the cross section of the guide bar 15 is circular, the first slide bar 11 is provided with an inserting through hole, the inserting through hole is communicated with the sliding cavity, the guide bar 15 is arranged in the inserting through hole in a penetrating manner, two ends of the guide bar 15 are inserted with the first slide bar 11, and the middle part of the guide bar 15 is inserted in the guide groove 121, and the extending direction of the guide bar 15 is perpendicular to the axis direction of the first slide bar 11. In other embodiments, the cross-sectional shapes of the first slide bar 11 and the second slide bar 12 may be triangular or polygonal, and the cavity shape of the sliding cavity is consistent with the cross-sectional shape of the second slide bar 12.

As shown in fig. 4 and 5, in order to adjust the length of the telescopic assembly, the shoulder joint restorer further comprises an adjusting assembly 4, the adjusting assembly 4 comprises a gear 41 and a rotating shaft 42, the gear 41 is rotatably mounted on the first slide bar 11, the second slide bar 12 is provided with a rack portion along the vertical direction, the gear 41 is meshed with the rack portion, and the gear 41 is coaxial with and fixedly connected with the rotating shaft 42. Through set up rack portion on second slide bar 12, rack portion and gear 41 meshing, thereby slow rotation axis of rotation 42 drives gear 41 and rotates and realize that second slide bar 12 takes place to remove relative first slide bar 11, the length of flexible subassembly is simply controlled fast through the mode of gear rack meshing, improves the convenience of adjusting and the accuracy of length control.

In this embodiment, the first sliding rod 11 is provided with a receiving groove 111, the receiving groove 111 is communicated with the sliding cavity of the first sliding rod 11, the gear 41 is disposed in the receiving groove, at least one end of the rotating shaft 42 extends to the outside of the receiving groove 111, and the width of the receiving groove 111 is matched with the thickness of the gear 41. The adjusting component 4 may be disposed at an end portion or an intermediate position of the first slide bar 11, so long as it is ensured that the sliding cavity of the first slide bar 11 is in communication with the accommodating groove 111.

Further, a torsion member 44 is connected to one end of the rotation shaft 42 extending to the outside of the accommodating groove 111, and/or a through hole 421 is provided at one end of the rotation shaft 42 extending to the outside of the accommodating groove 111, and a wrench 43 is mounted in the through hole 421. By providing the torsion member 44 or the through hole 421 to mount the wrench 43, rotating the torsion member 44 or rotating the wrench 43, the second slide bar 12 is moved upward or downward in the axial direction with respect to the first slide bar 11, improving the operational convenience of the rotation of the driving gear 41.

In the present embodiment, the torsion member 44 is detachably mounted on the end surface of the rotation shaft 42, and the torsion member 44 has a quadrangular shape with four rounded corners for easy grasping. The through hole 421 is a cylindrical through hole, and the axial direction of the through hole 421 is perpendicular to the axial direction of the rotation shaft 42.

The wrench 43 includes an integral body and a grip portion, the body is cylindrical, the grip portion is spherical, and the body portion is inserted into the insertion hole 421. In order to ensure the installation of the wrench 43, it is preferable that the rotation shaft 42 is a stepped shaft, the rotation shaft 42 is keyed or interference-fitted with the gear 41, and the diameter of the portion of the rotation shaft 42 fitted with the gear 41 is smaller than the diameter of the portion of the rotation shaft 42 provided with the through hole 421.

Further, the shoulder joint restorer further comprises a clamping assembly 5, wherein the clamping assembly 5 is arranged on the first sliding rod 11, and the clamping assembly 5 is in a clamping state clamped with the second sliding rod 12 and in a releasing state separated from the second sliding rod 12. Through setting up chucking subassembly 5 with first slide bar 11 and second slide bar 12 relative fixation, prevent in the use of shoulder joint restorer, second slide bar 12 fall back to the slip chamber in the first slide bar 11 to can't stably support patient armpit, guarantee the stability of support.

In this embodiment, a plurality of clamping grooves are arranged on the outer wall of the second sliding rod 12 side by side, the clamping assembly 5 comprises a clamping piece 52, and the clamping piece 52 is rotatably mounted on the first sliding rod 11, so that one end of the clamping piece 52 is selectively clamped in any clamping groove. Clamping is achieved through the clamping groove matched with the clamping piece 52 on the second slide rod 12, the clamping piece 52 is clamped in different clamping grooves to change the total length of the telescopic assembly, the end portion of the clamping piece 52 is matched with the clamping groove, the clamping piece 52 can prevent the second slide rod 12 from falling back to the inside of the first slide rod 11 after being clamped in the clamping groove, the second slide rod 12 is not influenced to extend outwards relative to the first slide rod 11, the clamping piece 52 can be converted to be clamped with another clamping groove through one clamping groove by adjusting the adjusting assembly 4, different heights of armpit support are achieved, and applicability is improved.

The clamping assembly 5 further comprises a return member for maintaining or returning the clamping member 52 to a clamped condition with the second slide bar 12. The release state or the clamping state of the clamping member 52 is switched by providing the reset member, thereby improving the convenience of use.

In this embodiment, the middle part of the clamping member 52 is rotationally connected with the first sliding rod 11, the first end of the clamping member 52 is clamped with the second sliding rod 12, the second end of the clamping member 52 is provided with an inserting portion 521, the resetting member is a spring 53, the spring 53 is sleeved on the inserting portion 521, and two ends of the spring 53 respectively abut against the first sliding rod 11 and the clamping member 52. Through setting up the return piece and being spring 53, utilize the elasticity of spring 53 to keep the joint state of chucking spare 52 and second slide bar 12 chucking, press the second end of chucking spare 52 when using, need not to deliberately control chucking subassembly 5 after adjusting the length of flexible subassembly, the automatic resilience of spring 53 makes chucking spare 52 and second slide bar 12 chucking after the pine hand, simple structure convenient operation.

In this embodiment, the clamping assembly 5 further includes a rotating shaft 51, the first sliding rod 11 is provided with an installation portion 112, two ends of the rotating shaft 51 are connected with the installation portion 112, and the middle of the clamping member 52 is rotatably connected with the rotating shaft 51; the first end of the clamping piece 52 is clamped in a clamping groove, the second end of the clamping piece 52 is provided with an installation side face in the direction facing the first sliding rod 11, the installation side face is provided with a plug-in portion 521 in a protruding mode, the plug-in portion 521 is cylindrical, one end of the spring 53 is installed on the outer wall of the first sliding rod 11, and the other end of the spring 53 abuts against the installation side face. In other embodiments, the shaft 51 may also rotate synchronously with the fastener 52 relative to the mounting portion 112.

In other embodiments, the reset member may be a rotating rod, one end of which is rotatably mounted on the first sliding rod 11, and the other end of which is slidably connected to the clamping member 52; when the rotating rod rotates until being perpendicular to the extending direction of the first sliding rod 11, the clamping piece 52 is driven to rotate, so that the first end of the clamping piece 52 moves towards the direction approaching the second sliding rod 12, and the clamping piece 52 is converted from the releasing state to the clamping state. The restoring member may also be a torsion spring, which is sleeved on the inserting portion 521, and two ends of the torsion spring are respectively connected with the clamping member 52 and the first sliding rod 11.

The clamping assembly 5 can be arranged at the end part or the middle position of the first slide rod 11, and when the clamping assembly 5 is arranged at the middle position of the first slide rod 11, an opening is formed in the first slide rod 11 to ensure that the first end of the clamping piece 52 can be selectively clamped in the clamping groove of the outer wall of the second slide rod 12. In other embodiments, the clamping assembly 5 may be a cam type locking mechanism, and the first sliding rod 11 is provided with a contact opening so that the cam surface can contact with the second sliding rod 12.

Preferably, the adjusting component 4 and the clamping component 5 are arranged oppositely, so that interference between the adjusting component 4 and the clamping component 5 can be prevented, and a doctor can conveniently control the adjusting component 4 and the clamping component 5 respectively; the adjusting component 4 and the clamping component 5 are arranged at the same height of the first sliding rod 11, so that the clamping component 5 can be adjusted in time to clamp after the length of the telescopic component is adjusted, and the operation difficulty is reduced.

As shown in fig. 6 to 9, the elbow sleeve 3 has an elbow accommodating cavity which is L-shaped and has two ends penetrating through, the elbow accommodating cavity is used for accommodating an elbow joint, a concave side cavity wall of the elbow accommodating cavity is provided with a gap communicated with two end ports of the elbow accommodating cavity, two tightening parts 33 are formed on two opposite sides of the elbow sleeve 3 and the gap, the two tightening parts 33 can be opened relatively to expand the gap for the elbow joint to enter the elbow accommodating cavity, and the two tightening parts 33 can be folded relatively through a connecting piece to close the gap. By arranging the elbow sleeve 3 in an L-shaped state to be attached to the elbow joint in a bending state, the gap can be enlarged by arranging the two tightening parts 33 to be relatively opened, and the elbow of the patient enters the elbow accommodating cavity from the gap, so that the adaptability to the elbow of the patient is improved; the arm on the wounded side of the patient should be moved as little as possible before treatment, so that the elbow of the patient is prevented from directly extending into the elbow sleeve 3 from the two ends to cause damage, and the use safety of the patient is further protected.

In this embodiment, the elbow sleeve 3 further includes a fixing portion 32, two sides of the fixing portion 32 are connected with tightening portions 33, the fixing portion 32 and the two tightening portions 33 enclose an elbow accommodating cavity together, the fixing portion 32 is made of hard materials, the tightening portions 33 are made of flexible materials, the elbow accommodating cavity is shielded by the two tightening portions 33 in a natural state, the connecting member is a rope, and holes for the rope to pass through are formed in the tightening portions 33. In other embodiments, the connector may also be a nylon clasp.

Further, a fixed disc 21 is provided on the slider 2, a rotating disc 31 is provided on the side face of the elbow sleeve 3, the fixed disc 21 and the rotating disc 31 are rotationally connected through a connecting shaft, the connecting shaft extends in the vertical direction, end face tooth structures are provided on opposite end faces of the fixed disc 21 and the rotating disc 31, and the fixed disc 21 and the rotating disc 31 are meshed through the end face tooth structures. By arranging the end face tooth structures on the opposite end faces of the fixed disc 21 and the rotating disc 31 to realize meshing, the friction force of the sliding piece 2 and the elbow sleeve 3 relative rotation is improved, the rotation angle of the elbow sleeve 3 is convenient to control, and the stability of resetting operation is improved.

In the present embodiment, the rotating disc 31 is disposed on the fixing portion 32, and the rotating discs 31 are disposed on opposite sides of the fixing portion 32, respectively, to select the relative mounting positions of the slider 2 and the elbow sleeve 3; the fixed disk 21 and the rotating disk 31 are sleeved outside the connecting shaft, the fixed disk 21 is rotationally connected with the rotating disk 31, and the rotating disk 31 and the connecting shaft synchronously rotate. In other embodiments, the setting position of the rotating disc 31 can be adjusted according to the actual situation; the connection relationship among the fixed disk 21, the rotating disk 31, and the connection shaft can be adjusted as long as the rotating disk 31 and the fixed disk 21 can be rotated relatively.

When the shoulder joint restorer is used, the patient is in a sitting state, the supporting seat 14 is fixed, and the air bag is placed under the armpit of the wounded side of the patient; separating the two tightening parts 33, placing the elbow joint of the patient into the elbow accommodating cavity, restoring the two tightening parts 33 to a natural state, and tightening and fixing the elbow joint of the patient by using the rope; the adjusting component 4 is properly controlled to adjust the length of the telescopic component, apply the traction force to the distal end to the humerus, open the air pump to inflate the air bag, expand the opposite sides of the air bag outwards to apply the thrust force to the outside of the body to the humerus, hold the arm of the patient to draw so that the sliding piece 2 slides relative to the supporting seat 14, and the humerus is retracted; the traction arm rotates to drive the elbow sleeve 3 to rotate relative to the sliding piece 2, so that the humerus rotates to the outer side of the body, and finally the shoulder joint is reset.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. Shoulder joint restorer, its characterized in that includes:

the traction assembly (1) is used for traction and distraction of the affected limb shoulder joints;

the sliding piece (2) is arranged on the traction assembly (1), the sliding piece (2) can slide relative to the traction assembly (1) along a preset arc track, and an opening of the preset arc track faces to the top end of the traction assembly (1);

an elbow sleeve (3), the elbow sleeve (3) being used to fit around an elbow joint to fix the elbow joint, the elbow sleeve (3) being mounted on the slider (2) and the elbow sleeve (3) being rotatable about a humeral axis relative to the slider (2);

a fixed disc (21) is arranged on the sliding piece (2), a rotating disc (31) is arranged on the side face of the elbow sleeve (3), the fixed disc (21) and the rotating disc (31) are rotationally connected through a connecting shaft, the connecting shaft extends in the vertical direction, end face tooth structures are arranged on opposite end faces of the fixed disc (21) and the rotating disc (31), and the fixed disc (21) and the rotating disc (31) are meshed through the end face tooth structures;

the bottom of the traction assembly (1) is provided with a sliding channel (141), the sliding piece (2) and the sliding channel (141) are arc-shaped, the arc is matched with a preset arc track, and the sliding piece (2) is arranged in the sliding channel (141) in a sliding mode.

2. Shoulder joint restorer according to claim 1, characterized in that the elbow sleeve (3) is provided with an elbow accommodating cavity which is L-shaped and is provided with two through ends, the elbow accommodating cavity is used for accommodating the elbow joint, the inner concave side cavity wall of the elbow accommodating cavity is provided with a gap communicated with two end ports of the elbow accommodating cavity, the elbow sleeve (3) is provided with two tightening parts (33) at two opposite sides of the gap, the two tightening parts (33) can be opened relatively to enlarge the gap for the elbow joint to enter the elbow accommodating cavity, and the two tightening parts (33) can be folded relatively through a connecting piece to close the gap.

3. Shoulder reducer according to any one of claims 1-2, characterized in that the traction assembly (1) comprises an armpit support (13) and a telescopic assembly connected, the armpit support (13) being intended to support the armpit and push the humerus, the telescopic assembly comprising a first slide bar (11) and a second slide bar (12), the slide (2) being mounted on the first slide bar (11), the armpit support (13) being mounted on the upper end of the second slide bar (12), the first slide bar (11) and the second slide bar (12) being slidingly connected to adjust the traction length.

4. A shoulder joint reducer according to claim 3, wherein the lower end of the second slide bar (12) is arranged inside the first slide bar (11) in a penetrating way, the shoulder joint reducer further comprises an adjusting assembly (4), and the adjusting assembly (4) comprises:

the gear (41) is rotatably arranged on the first sliding rod (11), a rack part is arranged on the second sliding rod (12) along the vertical direction, and the gear (41) is meshed with the rack part;

and the gear (41) is coaxial with the rotating shaft (42) and fixedly connected with the rotating shaft (42).

5. The shoulder joint restorer according to claim 3, wherein the lower end of the second slide bar (12) is penetrated into the first slide bar (11), and a plurality of clamping grooves are arranged on the outer wall of the second slide bar (12) side by side;

the shoulder joint restorer further comprises a clamping piece (52), wherein the clamping piece (52) is rotatably arranged on the first sliding rod (11) so that one end of the clamping piece (52) is selectively clamped in any clamping groove.

6. Shoulder reducer according to claim 5, further comprising a restoring member for holding or restoring the clamping member (52) into clamping engagement with the second slide bar (12).

7. The shoulder joint restorer according to claim 6, wherein the middle part of the clamping piece (52) is rotationally connected with the first sliding rod (11), the first end of the clamping piece (52) is clamped with the second sliding rod (12), the second end of the clamping piece (52) is provided with an inserting portion (521), the restoring piece is a spring (53), the spring (53) is sleeved on the inserting portion (521), and two ends of the spring are respectively abutted to the first sliding rod (11) and the clamping piece (52).

8. A shoulder reduction device according to claim 3, wherein the armpit support (13) comprises a balloon provided with an air inlet hole (1321) communicating with an air pump, the opposite sides of the balloon being expandable outwards in the inlet condition to push against the reduction humerus.

9. The shoulder joint reducer according to claim 8, wherein the airbag includes a support upper wall (131), a side wall (132), a support side wall (134) and an airbag base (133), the support upper wall (131), the side wall (132), the support side wall (134) and the airbag base (133) are enclosed together to form an airbag cavity, the airbag base (133) is connected with the second slide bar (12), the air intake hole (1321) is provided on the side wall (132) and communicates with the airbag cavity, the support side wall (134) is made of a flexible and extensible material, the support upper wall (131) is made of a soft and inextensible material, and the airbag base (133) is made of a hard material.