CN212118273U

CN212118273U - Device for acromioclavicular joint treatment

Info

Publication number: CN212118273U
Application number: CN201921834931.6U
Authority: CN
Inventors: 黄长明; 付仰攀; 王建雄
Original assignee: Double Medical Technology Inc
Current assignee: Double Medical Technology Inc
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-12-11
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a device for acromioclavicular joint treatment, which belongs to the technical field of medical instruments. The device includes a positioning guide releasably connectable to the acromioclavicular joint and a lock. A lock is used to secure the injured part of the clavicle, the lock being received within the hollow of the positioning guide and being movable relative to the hollow in the direction of the longitudinal axis L. During operation treatment, the free end of the positioning guide is placed in the acromion bone of the acromioclavicular joint during treatment, the guide part of the positioning guide and the clavicle part needing to be repaired are provided with the locking device in the hollow part of the positioning guide, the locking device is fixed with the clavicle through a suture, and finally the positioning guide is taken down from the clavicle. The utility model discloses simple structure, it is easy and simple to handle, it is reliable to reset simultaneously again, does not cause the damage of second degree, uses when being particularly suitable for the treatment acromioclavicular joint damage.

Description

Device for acromioclavicular joint treatment

Technical Field

The utility model relates to the technical field of medical equipment, specifically relate to a device for acromioclavicular joint treatment.

Background

Dislocation of the acromioclavicular joint in the shoulder of the human body often occurs, and dislocation of the acromioclavicular joint involves related ligament injuries of varying degrees. In general, in the case of minor injuries, ligaments can heal by rest and external fixation. However, more severe or chronic damage to the joint requires surgical intervention to create internal stabilization of the joint's bone. In the case of an injury to the acromioclavicular joint, commonly referred to as "shoulder dislocation", such as injury to the acromioclavicular ligament, which results in upward displacement of the clavicle relative to the acromion bone, surgical intervention is required, and such operation of the injured joint typically involves pulling the clavicle down into position by some means to align and hold the clavicle in that position for healing reduction of the injured acromioclavicular joint.

The devices currently developed for the surgical treatment of acromioclavicular joint injuries have some drawbacks: if the steel wire is broken after the tension band fixing operation, the needle of the knitting needle is withdrawn from the fixing failure; shoulder joint pain dysfunction and postoperative subacromial bone abrasion phenomena occur after the clavicle hook steel plate operation; after the elastic fixation of the titanium plate with the belt loop, certain iatrogenic fracture exists, and the reduction is difficult and sometimes difficult or unsatisfactory due to the assistance in the operation; the screw is easy to break, loosen and fracture when being internally fixed; the titanium cable is fixed and the cable is easy to break.

Based on this, a treatment device which is convenient for the acromioclavicular joint to reposition, saves the manpower resource in the operation, saves the operation time, and is reliable in repositioning and can not secondarily damage the acromioclavicular joint is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, an object of the present invention is to provide a device for acromioclavicular joint treatment.

The utility model discloses a following technical scheme realizes:

an apparatus for acromioclavicular joint treatment, comprising: a positioning guide including a guide portion, a positioning portion, and a hollow portion; the guide including a first end and a second end, the guide extending along a longitudinal axis from the first end to the second end, the guide including a first surface facing away from a clavicle of the acromioclavicular joint and a second surface in contact with the clavicle of the acromioclavicular joint; one end of the positioning part is connected with the guiding part, the other end of the positioning part is a free end, the free end can be placed in the acromion bone of the acromioclavicular joint during treatment, and the free end can be matched with the periphery of the acromioclavicular end of the acromioclavicular joint; the hollow part penetrates from the first surface of the guide part to the second surface of the guide part; and a locker received within the hollow portion, the locker being movable relative to the hollow portion in a direction of the longitudinal axis, the locker for immobilizing an injured portion of the acromioclavicular joint.

Furthermore, the first tail end of the guide part is also provided with a fastener used for being connected with a clavicle of the acromioclavicular joint, and the second tail end of the guide part is connected with the positioning part.

Further, the positioning part is an S-shaped or Z-shaped hook plate, and the positioning part includes a transition portion for connecting the second end of the positioning part and the guide part.

Further, the locking device comprises a stitching part and two fixing parts, and two ends of the stitching part are respectively connected with one fixing part along the longitudinal axis direction.

Further, the fixing portion is matched in shape with a corresponding portion of an outer surface of the injured portion of the acromioclavicular joint.

Furthermore, each fixing part is provided with a locking hole, the locking hole is matched with the clavicle fixing element, and the locking hole has a taper.

Further, the thickness of the end of the fixing portion is gradually reduced in a direction away from the sewn portion.

Further, the suture part is provided with a groove at each end along the transverse axis, the hollow part extends out of two hollow convex parts along the direction of the transverse axis, the hollow convex parts are opposite to the grooves, and the grooves are used for accommodating sutures.

Further, the thickness of the fixing part near the sewing part is larger than that of the sewing part.

Further, the plane of the lock close to the clavicle is an anti-slip plane.

The utility model discloses a device for acromioclavicular joint treatment has following beneficial effect:

1) a location guide ware for device of acromioclavicular joint treatment have location portion, location portion and acromioclavicular joint's the periphery phase-match of end, the location guide ware easily fixes a position, and fixed mode is simple, operation time when practicing thrift the treatment.

2) A device for acromioclavicular joint treatment help the fixed of locker and clavicle through the location director after fixing in its device, need not additionally to increase the manpower again and fix the locker when the treatment, can avoid causing secondary damage to the clavicle.

3) A device location director for acromioclavicular joint treatment play supplementary fixed action when the treatment, will fix a position the director and take away when the treatment finishes, realize the fixed at acromioclavicular joint injured position by locker, collar-bone fixed element and stylolite, it is fixed firm to the restoration of acromioclavicular joint after the treatment, bone wearing and tearing can not appear in the shoulder peak end after the treatment, easily the quick recovery of acromioclavicular joint.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of the device for acromioclavicular joint treatment of the present invention.

Fig. 2 is a schematic perspective view of the positioning guide of the present invention.

Fig. 3 is a schematic top view of the positioning guide shown in fig. 2.

Fig. 4 is a schematic bottom view of the positioning guide shown in fig. 2.

Fig. 5 is a schematic side view of the positioning guide shown in fig. 2.

Fig. 6 is a schematic perspective view of the lock of the present invention.

Fig. 7 is a schematic top view of the lock shown in fig. 6.

Fig. 8 is a schematic front view of the latch shown in fig. 6.

Fig. 9 is a schematic cross-sectional view of the lock shown in fig. 8 taken along line a-a.

Reference numbers in the figures:

100-positioning guide, 101-guide, 1011-first end, 1012-second end, 1013-first surface, 1014-second surface, 102-positioning part, 1021-transition part, 103-hollow;

200-lock, 201-suture, 2011-groove, 202-fixation, 2021-locking hole;

300-a suture;

400-clavicle fixation element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-9, an apparatus for acromioclavicular joint treatment includes a positioning guide 100 and a lock 200.

Referring to fig. 1-4, the positioning guide 100 includes a guiding portion 101, a positioning portion 102, and a hollow portion 103. The guide 101 extends in the direction of the longitudinal axis L from the first end 1011 of the positioning guide 100 to the second end 1012 of the positioning guide 100, the shape of the guide 101 matching the shape of the outer surface of the corresponding part of the clavicle with which it is in contact. The first end 1011 of the guide portion 101 is coupled to the clavicle of the acromioclavicular joint by a removable fastener (not shown) through a coupling hole (not labeled) in the guide portion 101, and the second end 1012 of the guide portion 101 is coupled to the positioning portion 102 of the positioning guide 100. It will be appreciated that the above-described fasteners, which may be removable connecting elements such as medical screws commonly used in surgical treatment of the acromioclavicular joint, serve to temporarily fix the positioning guide 100 to the corresponding portion of the clavicle to facilitate positioning and fixation of the lock 200 to the acromioclavicular joint.

Referring to fig. 5, one end of the positioning portion 102 is connected to the guiding portion 101, and the other end of the positioning portion 102 is a free end. The positioning portion 102 may be an S-shaped or Z-shaped hook plate. The end of the positioning part 102 connected to the second end 1012 of the guiding part 101 has a transition portion 1021, and the transition portion 1021 connects the positioning part 102 to the second end 1012 of the guiding part 101. It is understood that the positioning portion 102 may be integrally formed with the second end 1012 of the guiding portion 101 through the transition portion 1021 by injection molding, and the positioning portion 102 may also be connected with the second end 1012 of the guiding portion 101 by snapping, bonding or bolt fastening through the transition portion 1021, and the connection manner of the positioning portion 102 and the guiding portion 101 is not limited too much.

Referring to fig. 6-9, the locking device 200 includes a suture portion 201 and two fixing portions 202. Two fixing portions 202 are connected to both ends of the suture portion 201, respectively, in the direction of the longitudinal axis L. The thickness of the end portions of the two fixing portions 202 remote from the suture portion 201 is gradually thinned in a direction remote from the suture portion 201 to reduce irritation to the outer surface tissue of the clavicle where it is in contact. Fixation portion 202 is in contact with the outer surface of the clavicle and fixation portion 202 is shaped to match the shape of the outer surface of the corresponding portion of the clavicle. A locking hole 2021 is formed on the fixing portion 202, the locking hole 2021 is a through hole, and during the treatment process, the clavicle fixing element 400 passes through the locking hole 2021 to fixedly connect the locker 200 with the clavicle. Fig. 8 is a schematic side view of the locker shown in fig. 6, and a schematic cross-sectional view of the locker shown in fig. 6 taken along line a-a, and the clavicle fixation element 400 may be a clavicle locking screw, and accordingly, the locking hole 2021 has a taper to be coupled to the clavicle locking screw.

Referring to fig. 1 and 6-8, two notches 2011 are respectively formed at two ends of the suture portion 201 of the locking device 200 along the transverse axis W, the two notches 2011 are respectively opposite to the two hollow protrusions on the hollow portion 103, and the notches 2011 are used for accommodating the suture 300 during acromioclavicular joint treatment. Meanwhile, the thickness of the sewn portion 201 is smaller than the thickness of the portion of the fixing portion 202 near the sewn portion 201, and the upper and lower surfaces of the fixing portion 202 facing the sewn portion 201 are closer to each other in the direction of a curve of a constant arc relative to the upper and lower surfaces of the fixing portion 202 facing each other near the sewn portion. The structure of the suture part 201 can avoid the injured part of the acromioclavicular joint, and avoid secondary injury to the acromioclavicular joint during treatment. The plane that the locker is close to the clavicle is anti-skidding plane, and above-mentioned plane and clavicle laminating, anti-skidding plane can avoid the fixed back locker of operation treatment to shift, can guarantee operation treatment better effect. Meanwhile, the locker 200 may be made of a bio-absorbable material, and after the therapeutic operation is finished, the locker 200 is left in the acromioclavicular joint to assist the patient in recovery, and after the patient is completely recovered, the locker 200 may be absorbed by the patient's body without performing a secondary operation in order to remove the locker 200. Preferably, the length of the lock 200 in the direction of the longitudinal axis L is 25mm to 30mm and the length in the direction of the transverse axis W is 5mm to 8 mm. Meanwhile, the thickness of the locker 200 is 1.5mm to 3mm, and the thickness of each portion of the locker 200 is selectively designed according to the actual surgical application.

The guide 101 has a first surface 1013 facing away from the clavicle of the acromioclavicular joint and a second surface 1014 in contact with the clavicle of the acromioclavicular joint. The hollow portion 103 extends through from the first surface 1013 of the guide portion 101 to the second surface of the guide portion 101. The part of the clavicle corresponding to the hollow part 103 is the injured part of the clavicle needing treatment and reduction and the peripheral part thereof. The length of hollow portion 103 in the direction of longitudinal axis L is 30mm to 40mm, and the length of hollow portion 103 in longitudinal axis L can be adjusted for different patients when manufacturing positioning guide 100. The hollow portion 103 can accommodate the locker 200 therein, and the locker 200 can move or slide in the hollow portion 103 in the direction of the longitudinal axis L, and the distance by which both ends of the locker 200 can be moved or slidably adjusted in the hollow portion 103 along the longitudinal axis L is 3mm to 10mm to select a position on the clavicle most suitable for connection with the locking hole 2021 on the fixing portion 202 of the locker 200. Two hollow protruding parts (not marked in the figure) extend from the hollow part 103 along the direction of the transverse axis W, and the hollow protruding parts can avoid the suture 300 connected with the locking device 200 during the operation treatment, so that the suture 300 is prevented from being damaged when the positioning guide 100 is taken away after the treatment is finished, and the operation treatment effect is prevented from being influenced.

The utility model provides a device for acromioclavicular joint treatment, it is as follows at operation treatment operation process:

during treatment, the free end of the positioning part 102 of the positioning guide 100 is matched and butted with the acromion bone of the acromioclavicular joint, then the positioning guide 100 is temporarily fixed with the clavicle by a detachable fastener passing through the connecting hole on the second tail end 1012 of the guiding part 101 of the positioning guide 100, and then the locking device 200 is placed into the hollow part 103 of the positioning guide 100. The locker 200 is fixedly coupled to the clavicle by the two clavicle fixing elements 400 passing through the two locking holes 2021 of the locker 200, respectively. Then, the suture thread 300 is passed through the two grooves 2011 of the suture part 201, the suture thread 300 suspends and fixes the locker 200 with the injured part of the acromioclavicular joint, and the position of the locker 200 is moved or slid within the hollow part 103 to find the optimum connection position on the acromioclavicular joint which is most suitable for passing through the suture thread 300. After fixation of the lock 200 to the acromioclavicular joint is completed, the positioning guide 100 is removed, and the lock 200 is left in the acromioclavicular joint to assist recovery of the acromioclavicular joint.

The utility model discloses a locker 200 and the clavicle of device for acromioclavicular joint treatment are the face contact, and the acromioclavicular joint resets reliably, can avoid appearing the stress concentration that causes because of reasons such as point contact between locker 200 and the acromioclavicular joint when acromioclavicular joint treatment, and then arouse the problem of clavicle fracture. Meanwhile, the locking device 200 can complete the positioning and fixing with the acromioclavicular joint by guiding the positioning device 100, thereby saving the labor cost and the operation time in the operation treatment process. The locking device 200 can move and position in the hollow part 103 of the guide positioner 100, thereby facilitating the fixation of the suture 300 and the acromioclavicular joint during the operation treatment. The structure of the lock 200 and guide locator 100 allows for the avoidance of the suture 300 without causing damage to the suture 300. The locking device 200, the clavicle fixing element 400 and the suture 300 are used for fixing the injured part of the acromioclavicular joint, so that the problem of clavicle deflection is avoided in the operation, the acromioclavicular joint is firmly reset and fixed after treatment, the phenomena of bone abrasion and clavicle fracture cannot occur at the acromioclavicular end after treatment, and the acromioclavicular joint is easy to quickly restore.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. An apparatus for acromioclavicular joint treatment, comprising:

a positioning guide (100), the positioning guide (100) comprising a guide portion (101), a positioning portion (102), and a hollow portion (103);

the guide (101) having a first end (1011) and a second end (1012), the guide (101) extending along a longitudinal axis (L) from the first end (1011) to the second end (1012), the guide (101) comprising a first surface (1013) facing away from the clavicle of the acromioclavicular joint and a second surface (1014) in contact with the clavicle of the acromioclavicular joint;

one end of the positioning part (102) is connected with the guide part (101), the other end of the positioning part (102) is a free end, the free end can be placed in an acromion bone of the acromioclavicular joint during treatment, and the free end can be matched with the periphery of the acromion end of the acromioclavicular joint;

the hollow part (103) extends from the first surface (1013) of the guide part (101) to the second surface (1014) of the guide part (101); and

a lock (200), said lock (200) being received within said hollow (103), said lock (200) being movable relative to said hollow (103) in the direction of a longitudinal axis (L), said lock (200) being for securing an injured part of said acromioclavicular joint.

2. A device for acromioclavicular joint treatment according to claim 1, wherein the first end (1011) of the guide portion (101) is further provided with a fastener for connection with the clavicle of the acromioclavicular joint, and the second end (1012) of the guide portion (101) is connected with the positioning portion (102).

3. The device for acromioclavicular joint treatment according to any one of claims 1 or 2, wherein the positioning portion (102) is an S-shaped or Z-shaped hook plate, the positioning portion (102) comprising a transition portion (1021), the transition portion (1021) being configured to connect the positioning portion (102) with the second extremity (1012) of the guide portion (101).

4. Device for acromioclavicular joint treatment according to claim 1, characterized in that said lock (200) comprises a suture portion (201) and two fixation portions (202), one fixation portion (202) being connected to each of the two ends of said suture portion (201) in the direction of the longitudinal axis (L).

5. The device for acromioclavicular joint treatment according to claim 4, wherein the fixation portion (202) matches a shape of a corresponding portion of an outer surface of an injured portion of the acromioclavicular joint.

6. The device for acromioclavicular joint treatment according to claim 5, wherein each of the fixation portions (202) is provided with a locking hole (2021), the locking hole (2021) is matched with the clavicle fixation element (400), and the locking hole (2021) has a taper.

7. The device for acromioclavicular joint treatment according to claim 4, wherein a thickness of an end of the fixing portion (202) is gradually decreased in a direction away from the suture portion (201).

8. Device for acromioclavicular joint treatment according to claim 7, wherein said suture portion (201) has a recess (2011) at each end along the transversal axis (W), said hollow portion (103) extends in the direction of the transversal axis (W) with two hollow protrusions opposite to said recesses (2011), said recesses (2011) being adapted to receive a suture (300).

9. The device for acromioclavicular joint treatment according to claim 8, wherein a thickness of the fixation portion (202) near the suture portion (201) is greater than a thickness of the suture portion (201).

10. Device for acromioclavicular joint treatment according to claim 1 or 2, characterized in that the plane of the lock (200) close to the clavicle is a non-slip plane.