CN113749819A - Prosthetic device for shoulder joint and prosthetic system - Google Patents

Abstract

The invention relates to a prosthetic device for a shoulder joint and a prosthesis system, comprising a buffer portion, which can be in an atrophied state or an expanded state, the buffer portion comprising a cavity configured for being filled with a substance to bring the buffer portion into the expanded state; a prosthesis configured for covering the humeral head or/and tendon; the buffer part is movably connected with the repairing part through the bordering part. The repair device for the shoulder joint can directly utilize the repair part to connect the tendon and the humeral head, the repair part and the buffer part can be fixed in the tissues of the shoulder joint, the operation is very simple, the repair part can be utilized to assist the healing of the rotator cuff tissues and remold the integrity of the rotator cuff, the buffer part can be utilized to quickly improve the shoulder joint pain caused by rotator cuff injury and the problem of limited shoulder joint mobility, the patient can quickly get rid of the trouble of the disease, and the fundamental and quick treatment of the serious rotator cuff injury problem is realized.

Description

Prosthetic device for shoulder joint and prosthetic system

Technical Field

The invention relates to the technical field of medical instruments, in particular to a shoulder joint repair device and a prosthesis system.

Background

The rotator cuff is a muscle-tendon structure connecting the scapula and the humeral head, and is located on the outer layer of the shoulder joint capsule and the inner layer of the deltoid. The rotator cuff is composed of a front rotator cuff (inferior scapular muscle), an upper rotator cuff (superior spinatus) and a rear rotator cuff (inferior spinatus and minor deltoid muscle), and the rotator cuff has certain functions of enabling the upper arm to rotate inwards, outwards and outwards, and has the main functions of stabilizing the position of the humeral head on the glenoid and avoiding pain and the like caused by the humeral head moving upwards to impact the acromion. Therefore, the rotator cuff plays an extremely important role in maintaining the stability of the shoulder joint and in moving the shoulder joint.

However, with age, repeated shoulder joint movement for a long time, hyperosteogeny under the shoulder or repeated violent movement may cause abrasion and tearing of soft tissues under the shoulder (joint bursa and rotator cuff), so that the stability and mobility of the humeral head are damaged, the arm of the patient cannot be abducted or lifted during the shoulder joint movement, severe pain is caused by impact between the sclerotin or the sclerotin and the rotator cuff, and the patient cannot sleep at night due to pain, thereby seriously affecting the quality of life and the self-care ability.

Currently, rotator cuff injury treatment modalities mainly include rotator cuff partial repair, rotator cuff reconstruction, local muscle metastasis, upper articular capsule reconstruction, trans-shoulder joint replacement, and the like. For less severe rotator cuff injuries, a better treatment result can be obtained by general operations, but for severe (injuries greater than 3 cm) and irreparable rotator cuff injuries, the existing treatment mode is temporarily difficult to achieve the fundamental and rapid repair effect.

Disclosure of Invention

In view of this, it is necessary to provide a prosthetic device for a shoulder joint and a prosthesis system for addressing the problem of severe, unrepairable rotator cuff injuries.

The present invention provides a prosthetic device for a shoulder joint, comprising:

a cushioning portion capable of assuming an atrophic state or an expanded state, the cushioning portion comprising a cavity configured for being filled with a substance to assume the expanded state;

a prosthesis configured for covering the humeral head or/and tendon;

the buffer part is movably connected with the repairing part through the bordering part.

In one embodiment, the buffer portion comprises a bag body, the cavity is formed in the bag body, the border portion is arranged on the surface of the bag body on the side far away from the shoulder peak, and the area of the border portion is smaller than that of the surface of the bag body on the side far away from the shoulder peak.

In one embodiment, the buffering part comprises a bag body and a bag body outer sleeve, the cavity is formed in the bag body, the bag body outer sleeve comprises an inner space, the bag body is movably arranged in the inner space, and the bordering part is arranged on the surface of one side, far away from the shoulder peak, of the bag body outer sleeve.

In one embodiment, the prosthesis is a sheet structure that is secured to the humeral head by an anchor or suture.

In one embodiment, the bordering portion includes a woven region, and a surface of the repairing portion and a surface of the buffering portion are fixed by the woven region.

In one embodiment, the braided region comprises at least a portion of a covering formed by braiding the surface of the cushioning portion with a braided wire, the covering being formed by extending braiding from the cushioning portion to the repair portion with the braided wire.

In one embodiment, the material of the braided wire is polyethylene, titanium alloy or developer modified yarn.

In one embodiment, the bordering part comprises a hot-melt connection area, and the surface of the repairing part and the surface of the buffer part are fixed through hot melting through the hot-melt connection area.

In one embodiment, the bordering part comprises an adhesive layer, and the surface of the repairing part and the surface of the buffering part are fixedly adhered through the adhesive layer.

In one embodiment, the repair device further comprises:

the connecting part is formed by connecting the surface of one side, close to the acromion, of the repairing part through the binding band, and the buffering part is fixed on the repairing part through the binding band.

In one embodiment, the buffer is a non-degradable balloon or a degradable balloon; and/or the repair part is a non-degradable patch, a biological patch or a composite patch.

In one embodiment, the buffer is a degradable balloon and the patch is a non-degradable patch.

In one embodiment, the prosthesis comprises a curved, concave or convex structure on the side adjacent to the humeral head for fitting with the shoulder or humeral head.

In one embodiment, the repair portion is square-like, and the length of the repair portion is between 20mm and 50 mm.

The invention also provides a prosthesis system comprising:

the repair device;

and the conveying device is connected with the repairing device and is used for conveying the repairing device.

Above-mentioned a prosthetic devices for shoulder joint, because buffer part and repair portion have formed the connection before implanting, so prosthetic devices implants the back, can directly utilize repair portion to connect tendon and humerus head, repair portion can consequently and form fixedly in shoulder joint's tissue, also fix buffer part simultaneously, and then realize fixing whole prosthetic devices, the operation is very simple and convenient, only need fix repair portion can, need not carry out the fixed operation of buffer part in the operation process, for not only needing to fix repair portion in an operation process, need fix buffer part again, can greatly reduced the uncomfortable sense that the operation led to the fact the patient. After fixation, the repairing part can be used for assisting the healing of the rotator cuff tissue and reshaping the integrity of the rotator cuff, and the buffer part can be used for quickly improving the problems of shoulder joint pain and limited shoulder joint mobility caused by rotator cuff injury, so that patients can quickly get rid of the trouble of injuries and diseases, and the fundamental and quick treatment of the problem of severe rotator cuff injury is realized.

Drawings

FIG. 1 is a schematic view showing a state in which a prosthetic device for a shoulder joint according to an embodiment of the present invention is used;

FIG. 2 is a schematic cross-sectional view of a prosthetic device for a shoulder joint in an embodiment of the present invention;

FIG. 3 is a schematic plan view of a prosthetic device for a shoulder joint in an embodiment of the present invention;

fig. 4 is a schematic view of a bladder outer sleeve and a bladder in accordance with an embodiment of the present invention;

fig. 5 is a schematic structural view of a shoulder joint prosthesis having a protective layer according to an embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view of a cover attachment for a shoulder joint prosthetic device in accordance with an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a heat fused connection of a prosthetic device for a shoulder joint in an embodiment of the present invention;

FIG. 8 is a cross-sectional view of an adhesive connection of a prosthetic device for a shoulder joint in accordance with an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a strap attachment for a shoulder joint prosthetic device in accordance with an embodiment of the present invention;

FIG. 10 is a schematic plan view of a strap attachment for a shoulder joint prosthetic device in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of a shape of a repair part according to an embodiment of the present invention;

FIG. 12 is a schematic view of another embodiment of the prosthetic device according to the present invention;

fig. 13 is a schematic view of another shape of the repairing portion in an embodiment of the invention.

Reference numerals:

001. a tendon; 002. the humeral head.

100. A buffer section; 200. a repair part; 300. an adjoining part;

110. the bag body is sleeved outside; 120. a capsule body; 130. a protective layer; 140. and (4) binding the bands.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

For rotator cuff injury, balloon therapy can be adopted, the balloon is directly implanted into the position of a shoulder joint and is positioned between a acromion and a humeral head, the implantation of the balloon can maintain and increase the distance between the acromion and the humeral head, so that the torn rotator cuff is directly isolated, the collision between a rotator cuff wound and a bony structure of the acromion is prevented, pain is relieved, and simultaneously, the force arm lifted on the shoulder joint is increased by reconstructing the distance between the acromion and the humeral head, the motion capability of the shoulder joint is improved, and therefore symptoms caused by rotator cuff injury, such as shoulder joint pain and joint motion limitation, can be quickly improved. In addition, the rotator cuff injury can also be treated by adopting a patch, the patch can be implanted into the position of a shoulder joint and is positioned between a tendon and a humeral head, one side of the patch is sutured with the tendon, the other side of the patch is fixed on the humeral head, which is equivalent to forming an artificial rotator cuff, and the implantation of the patch can promote the slow healing of the rotator cuff injury part.

However, the above methods are basically the treatment methods for mild rotator cuff injuries, and for severe (huge) and unrepairable rotator cuff injuries, the prior art has no fundamental and rapid repair means, and has the defects of treatment for both the implantation of the buffer part and the implantation of the repair part. As for the cushion part, although the cushion part can rapidly improve shoulder joint pain and limited shoulder joint mobility caused by rotator cuff injury, the treatment principle of the cushion part is to isolate the torn rotator cuff but not to guide the tendon on the rotator cuff to repair, so that rotator cuff tissue can not be healed actually, and particularly for severe rotator cuff injury, the torn part can be in a diseased state for a long time. Further, the cushion portion also has a risk of premature failure such as displacement and breakage. For the prosthesis, the implantation of the prosthesis is beneficial to the healing of the rotator cuff tissue and the reshaping of the integrity of the rotator cuff, but the improvement of the shoulder joint pain and the limitation of the shoulder joint mobility caused by the rotator cuff injury can be realized only along with the gradual healing of the rotator cuff, and the process is slow, particularly for the severe rotator cuff injury, and the pain feeling can make the patient difficult to bear.

It should be noted that the radical treatment of rotator cuff injuries can be understood as not only addressing symptoms but also addressing the root causes, i.e. having a promoting effect on the healing of rotator cuff tissues, and the rapid treatment of rotator cuff injuries can be understood as rapidly relieving the external pain of patients, so that the symptoms of rotator cuff pain, joint movement limitation and the like caused by rotator cuff injuries are rapidly improved. Therefore, the application provides a prosthetic devices for shoulder joint, after this prosthetic devices implants the shoulder joint position, can fix through simpler and easy operation, can not only assist healing of rotator cuff tissue, remold the rotator cuff integrality after fixed, but also can improve the shoulder joint pain that the rotator cuff damage brought fast and the restricted problem of rotator cuff mobility, make the patient get rid of the sick puzzlement fast, and continuously assist rotator cuff tissue healing, realize the radical, the quick treatment to the serious rotator cuff damage problem.

Referring to fig. 1 to 3, an embodiment of the present invention provides a shoulder joint repair device, including abuffer portion 100, arepair portion 200, and aborder portion 300, wherein thebuffer portion 100 may be in an shrunk state or an expanded state, and thebuffer portion 100 includes a cavity configured to be filled with a substance to make thebuffer portion 100 in the expanded state; aprosthesis 200 configured for covering a humeral head or/and tendon; theborder 300 is located on the side of therepair part 200 away from the humeral head and/or tendon, and thebuffer part 100 is movably connected to therepair part 200 through theborder 300.

The shrinking state of thebuffer part 100 indicates that thebuffer part 100 can shrink its volume, the shrinking degree mainly depends on the transportation requirement, it is ensured that the volume of thebuffer part 100 is shrunk to be capable of being accommodated in the transportation device and being transported to the predetermined position smoothly, the shrinking shape of thebuffer part 100 in the shrinking state is not limited as long as the transportation requirement is met, for example, when the transportation device transports thebuffer part 100 by using the transportation catheter, the shrinking state of thebuffer part 100 needs to be matched with the tubular inner cavity of the transportation catheter, and the buffer part is accommodated in the transportation catheter in a long strip shape.

Accordingly, the expansion state is relative to the atrophy state, the expansion state of thecushioning portion 100 means that thecushioning portion 100 can expand its own volume, the expansion degree mainly depends on the repair requirement of the shoulder joint, the volume of thecushioning portion 100 is ensured to be expanded to form an effective support between the shoulder peak and the humeral head, the distance between the shoulder peak and the humeral head is maintained and increased, and the treatment effect is achieved, the expansion shape of thecushioning portion 100 in the expansion state is not limited as long as the effective support between the shoulder peak and the humeral head is formed, for example, thecushioning portion 100 in the expansion state is substantially plate-shaped, or the two side surfaces of the plate-shaped has a surface shape that is gently attached to the tissue structure in the shoulder joint, such as tendon, humeral head, shoulder peak, and the like.

The movable connection of thecushioning portion 100 to the repairingportion 200 via theborder portion 300 means that thecushioning portion 100 is connected to the repairingportion 200 via theborder portion 300, but thecushioning portion 100 still has a certain movable distance with respect to the repairingportion 200, and within the movable distance, thecushioning portion 100 can be moved closer to or farther from the repairingportion 200, but cannot be moved further away from the repairingportion 200 beyond the movable distance, so that thecushioning portion 100 has a certain cushioning function.

When the repairing device is implanted into a preset position of a shoulder joint, thebuffer part 100 and the repairingpart 200 can be implanted together, thebuffer part 100 and the repairingpart 200 are connected through the borderingpart 300 before implantation, so that the repairing device can be directly connected with thetendon 001 and thehumeral head 002 by using the repairingpart 200 after implantation, the repairingpart 200 can be fixed in the tissues of the shoulder joint, and thebuffer part 100 can be fixed at the same time, so that the whole repairing device can be fixed, the operation is very simple and convenient, only the repairingpart 200 needs to be fixed, the fixing operation of thebuffer part 100 in the operation process is not needed, and compared with the condition that the repairingpart 200 and thebuffer part 100 need to be fixed in the operation process, the operation efficiency can be improved, and the discomfort of a patient caused by the operation can be greatly reduced.

The fixing of therepair part 200 for connecting thetendon 001 and thehumerus head 002 can be realized by adopting a rivet with a line and other reasonable forms, therepair part 200 can replace an artificial rotator cuff by connecting thetendon 001 and thehumerus head 002, therepair part 200 covers thetendon 001 and thehumerus head 002, muscles can grow on therepair part 200, the muscle growth is promoted, the repair of the damaged rotator cuff is realized, the rotator cuff tissue can be slowly healed, the healing can play the purpose of fundamentally repairing the rotator cuff, and the original function of the rotator cuff is gradually recovered in the slow healing process. In order to promote rapid growth of muscles, growth factors, collagen, and the like that promote muscle growth may be added to theprosthetic part 200.

After thebuffer part 100 is implanted and filled, a mechanical leverage effect can be provided, the impact between the damaged rotator cuff and the bony structure of the acromion can be prevented, the stability of the glenohumeral joint can be increased, the pressure under the acromion can be reduced, the pain can be relieved, the upward movement of thehumeral head 002 can be reduced, the distance between the shoulder and the humerus can be increased, the outward-extending force arm of the shoulder joint can be increased, the mobility of the shoulder joint can be rapidly improved, the problem caused by rotator cuff damage can be solved in a short time, and the patient can be prevented from suffering from pain. Thebuffer part 100 and therepair part 200 are matched in function and effect, so that the shoulder joint pain can be relieved in a short time, the slow healing of the rotator cuff can be effectively promoted, and the device is suitable for fast and radical healing of severe rotator cuff injury.

Thecushioning portion 100 and theprosthetic portion 200 can be implanted together at a predetermined position of the shoulder joint, and only one operation of fixing (fixing only the prosthetic portion 200) is required, in which thecushioning portion 100 and theprosthetic portion 200 are connected in advance by the borderingportion 300 before implantation. Therefore, as long as the connection between thebuffer part 100 and the repairingpart 200 can realize that the whole repairing device can complete the operation only by one fixing, the connection between thebuffer part 100 and the repairingpart 200 can be in various different reasonable forms, for example, the repairingpart 200 can be detachably connected with thebuffer part 100, or the repairingpart 200 can be fixedly connected with thebuffer part 100, the detachable connection form can facilitate the separation or connection between thebuffer part 100 and the repairingpart 200 under appropriate conditions and periods, and the fixed connection form is favorable for the connection stability between thebuffer part 100 and the repairingpart 200, and those skilled in the art can select an appropriate connection form according to the actual operation requirements, which is not limited herein.

The structure of thecushioning portion 100 may be various, for example, as shown in fig. 2, thecushioning portion 100 includes abladder 120, thebladder 120 has a cavity formed therein, theborder 300 is disposed on a surface of thebladder 120 away from the acromion, and the area of theborder 300 is smaller than that of the surface of thebladder 120 away from the acromion. In this case, thecushion part 100 is anindependent bladder 120, and theindependent bladder 120 is fixed to the repairingpart 200 through theborder part 300 to complete the fixation thereof. In another structure, referring to fig. 4, thebuffering portion 100 includes acapsule body 120 and acapsule body cover 110, the cavity is formed inside thecapsule body 120, thecapsule body cover 110 includes an inner space, thecapsule body 120 is movably disposed in the inner space (i.e., the inner cavity of the capsule body 120), theborder portion 300 is disposed on a side surface of thecapsule body cover 110 away from the acromion, and thecapsule body cover 110 and thecapsule body 120 disposed in the inner cavity of thecapsule body cover 110 together form thebuffering portion 100.

Thecapsule 120 is movably arranged in the inner cavity of thecapsule housing 110, thecapsule housing 110 is fixed at a preset position of the shoulder joint, thecapsule housing 110 can be fixed, and thecapsule 120 is fixed by thecapsule housing 110 to a certain extent, so that thecapsule 120 cannot be separated from the constraint of thecapsule housing 110, and only thecapsule 120 is allowed to move in the constraint cavity of thecapsule housing 110. This not only secures the fixation of thecapsule 120, but also allows thecapsule 120 to automatically adapt to the movement of the shoulder joint within the range of allowable movement, extending the life of thecapsule 120. In addition, referring to fig. 5, theprotective layer 130 is disposed on the surface of thecushioning portion 100, and theprotective layer 130 may be formed in various forms, for example, theprotective layer 130 may be formed by being sleeved on thecushioning portion 100, or theprotective layer 130 may be formed by weaving on the surface of thecushioning portion 100.

Theprosthesis 200 is a sheet-like structure that is fixed to the humeral head by an anchor or a suture. The side of theprosthesis 200 close to thehumeral head 002 includes a curved surface, a concave or a protruding structure for fitting with the acromion or thehumeral head 002, that is, the shape of theprosthesis 200 can be tailored according to the shape of the supraclavicular muscle, theprosthesis 200 similar to the supraclavicular muscle can simulate the shape of the damaged rotator cuff to form a suitable connection between thetendon 001 and thehumeral head 002, theprosthesis 200 is similar to a square, and the shape of the square can be a rectangle, or the outer contour can include a shape formed by combining a semicircle and a rectangle, or the outer contour includes a shape formed by combining other polygons and rectangles, but is still substantially square, and can cover the shapes of thetendon 001 and thehumeral head 002, as shown in fig. 11 to 13, but not limited thereto.

The shape of the repairingpart 200 can be tailored by a person skilled in the art according to actual needs or a doctor according to needs, and is not limited herein. Regardless of the actual shape of the substantially square shape, the substantially square shape may require a certain connection length when connecting thetendon 001 and thehumeral head 002, which may be the maximum length of theprosthesis 200, and then the connection length needs to be sufficient to cover thetendon 001 and the humeral head 02. Even if the connection length is not the maximum length of theprosthesis 200, the maximum length of theprosthesis 200 needs to sufficiently cover thetendon 001 and the humeral head 02 in order to enable repair of a severely damaged rotator cuff.

For example, when the repairingportion 200 is substantially square, the square may have a length, and the length may be configured such that at least one region of the repairingportion 200 extends in one direction, and the length may be in a range of 20-50mm, for example, the length of the repairingportion 200 may be 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, and the like. For regular square shapes, such as rectangles, the width of the rectangle may be 20-35mm, and the width of the repairingpart 200 may be 20mm, 25mm, 30mm, 35mm, etc. Therefore, the repairingportion 200 may have a specification of 20 × 20, 25 × 50, 30 × 30, 30 × 50, 35 × 40, or the like. Since thetendon 001 has a stretching effect, therepair part 200 for covering thetendon 001 and thehumeral head 002 can be smaller than the length of the torn rotator cuff wound, for example, if thetendon 001 is stretched toward thehumeral head 002 when repairing the rotator cuff injury larger than 3cm although the length of therepair part 200 is 20mm, the repair can be completely realized by using therepair part 200 having a length of 20 mm.

As can be seen from the foregoing description, the prior art already provides a relatively suitable and effective treatment for mild rotator cuff injuries, and the prosthetic device provided by the present invention is essentially directed to the treatment of severe rotator cuff injuries. Theoretically, in the degree classification of rotator cuff injuries, rotator cuff injuries greater than 3cm are severe, rotator cuff injuries less than 3cm are mild, but actually, rotator cuff injuries that are mild to severe require consideration of actual treatment difficulty. Although the prosthetic device of the present invention is claimed to address rotator cuff injuries of 3cm and above, it does not mean that the prosthetic device of the present invention is not suitable for the treatment of rotator cuff injuries of slightly less than 3cm, for example, although rotator cuff injuries of less than 3cm in size, such as 2.5cm, 2.55cm, 2.6cm, 2.65cm, 2.7cm, 2.75cm, 2.8cm, 2.85cm, 2.9cm, 2.95cm, etc., the prosthetic device of the present invention can be used to treat rotator cuff injuries when they cannot be effectively treated by ordinary treatment means.

In the form of fixed connection, thecushioning portion 100 and the repairingportion 200 may be fixed relatively in various reasonable manners, for example, the surface of the repairingportion 200 and the surface of thecushioning portion 100 are fixed by weaving, the repairingportion 200 may be connected by weaving after thecushioning portion 100 is formed by weaving, the repairingportion 200 may be connected by weaving after the repairingportion 100 is formed by weaving, or thecushioning portion 100 and the repairingportion 200 may be fixed by weaving which are matched directly. In the case of directly knitting and fixing thecushioning portion 100 and the repairingportion 200, a knitting yarn may be used, for example, the borderingportion 300 includes a knitting region through which the surface of the repairingportion 200 and the surface of thecushioning portion 100 are fixed, so that the surface of the repairingportion 200 and the surface of thecushioning portion 100 may be directly knitted and fixed through a knitting yarn, and the direct knitting and fixing means that the knitting yarn is fixedly connected to the surface of the repairingportion 200 and the surface of thecushioning portion 100 through a knitting process, respectively.

In addition, as shown in fig. 6, a covering layer may be knitted on the surface of the repairingpart 200 by using a knitting wire, that is, the knitting region includes at least a part of a covering layer formed by knitting the knitting wire on the surface of the buffer part, the covering layer is formed by extending and knitting the knitting wire from the buffer part to the repairing part, and the covering layer fixes and covers thebuffer part 100 to realize knitting fixation of thebuffer part 100, or continues knitting to form the covering layer after the repairingpart 200 is formed by knitting. In this case, thecushion part 100 may be tightly wrapped or may be wrapped with a certain degree of looseness after being wrapped in the covering layer, but the looseness cannot be so large as to prevent thecushion part 100 from being bound.

The material of the braided wire can be selected from polyethylene, titanium alloy or developer modified yarn, wherein the developer modified yarn refers to yarn containing developer, such as yarn containing barium sulfate, bismuth subcarbonate, bismuth trioxide, bismuth hydroxide, tungsten powder and the like.

Alternatively, as shown in fig. 7, theborder portion 300 includes a hot-melt connection region, and the surface of the repairingportion 200 and the surface of thebuffering portion 100 may be fixed by hot-melt through the hot-melt connection region, for example, the surface of the repairingportion 200 and the surface of thebuffering portion 100 are fixed by hot-melt through a laser hot-melt method, a thermal clamping mold, or the like to form a complete region. The regional area of hot melt can be as required fixed fastness requirement selection, the regional area of hot melt is big then the fastness is stronger more, in addition, it is fixed also to adopt the hot melt of incomplete region between the surface ofrepair portion 200 andbuffer portion 100,repair portion 200's surface has a plurality of hot melt connection regions promptly, hot melt connection region is fixed withbuffer portion 100's surface hot melt, distribute a plurality of hot melt connection regions with suitable mode, if every hot melt connection region is a hot melt point location,repair portion 200's surface is just the multiple spot with the hot melt ofbuffer portion 100's surface, the fixed knot in incomplete region constructs, the benefit of this kind of fixed mode can reduce actual hot melt area, but form hot melt connection in reasonable position, connection fastness has been guaranteed equally.

As shown in fig. 8, similar to the hot-melt fixing manner, the borderingpart 300 includes an adhesive layer, and the surface of the repairingpart 200 and the surface of thebuffering part 100 may be fixed by the adhesive layer in an adhesive manner, where the adhesive fixing may be performed by using a complete region or a non-complete region, except that the actual manner of the adhesive fixing is different, the adhesive structure may be fixed by hot-melt, for example, an adhesive connection region similar to the hot-melt connection region is formed, and details and limitations are not repeated herein.

Referring to fig. 9 and 10, the prosthetic device further includes aband 140, theborder portion 300 is formed by connecting theband 140 to a surface of the prosthetic portion on a side close to the acromion, and thebuffer portion 100 is fixed to the surface of theprosthetic portion 200 by theband 140. Wherein, both ends of thebinding band 140 are connected behind the surface of the repairingpart 200 to form the borderingpart 300, and the positions of thebinding band 140 except for both ends thereof are not limited except for both ends of thebinding band 140, so that thebinding band 140 except for both ends thereof can form a certain space together with the surface of the repairingpart 200, and the space can be used for placing thecushioning part 100, so that thebinding band 140 can bind thecushioning part 100 to the repairingpart 200. The number of the bindingbands 140 may be 1, 2, 3 or any number, and the width of the bindingbands 140 may be determined according to the size of thecushioning portion 100, the size of the repairingportion 200 and the actual number of the bindingbands 140, so as to stably bind thecushioning portion 100.

The material for making thecushioning portion 100 and the repairingportion 200 can be designed according to the actual surgical requirements, for example, thecushioning portion 100 is an undegradable balloon or a degradable balloon, and the repairingportion 200 is an undegradable patch, a degradable patch, a biological patch or a composite patch. Can adoptbuffer 100 is the degradable utricule, just the repair portion is the nondegradable patch, and the degradable utricule is implanted internal back, and the degradable utricule can degrade in a period, and degradable utricule degradation back, impaired oversleeve can be through the auxiliary restoration of nondegradable patch in the shoulder joint, realizes the healing to the oversleeve, improves the activity function of shoulder joint. Although the degradable capsule body can be automatically degraded in vivo, the degradable capsule body can be retained in vivo for a period of time, so that the requirement of repairing damaged rotator cuff is met, after the degradable capsule body is degraded, the damaged rotator cuff in the shoulder joint can be repaired through the repairingpart 200, and therefore the moving function of the shoulder joint can be still improved.

The non-degradable patch is made of polyester, polypropylene or polytetrafluoroethylene, the degradable patch is made of polyglycolic acid or polyglycolic acid, the biological patch is made of allograft tissue graft or autologous tissue graft, and the composite patch is made of polyester patch, polypropylene patch, polytetrafluoroethylene patch, polyglycolic acid patch or polyglycolic acid patch with a collagen coating.

The invention also provides a prosthesis system comprising a prosthetic device. The prosthesis system further comprises a delivery device connected to the prosthetic device for delivering the prosthetic device to a target site in the body according to the implantation requirements of the prosthetic device, such as may be connected to thecushioning portion 100. The conveying device is used for smoothly implanting the repairing device into a preset position in a human body, the conveying device can adopt the existing device as long as the smooth implantation of the repairing device can be met, and the specific structure and the model of the conveying device are not limited.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (15)

1. A prosthetic device for a shoulder joint, comprising:

a cushioning portion capable of assuming an atrophic state or an expanded state, the cushioning portion comprising a cavity configured for being filled with a substance to assume the expanded state;

a prosthesis configured for covering the humeral head or/and tendon;

the buffer part is movably connected with the repairing part through the bordering part.

2. The prosthetic device for a shoulder joint according to claim 1, wherein the buffer portion comprises a balloon having the cavity formed therein, the border portion is provided on a surface of the balloon on a side away from the shoulder, and an area of the border portion is smaller than an area of a surface of the balloon on a side away from the shoulder.

3. The shoulder joint repair device according to claim 1, wherein the buffer portion comprises a bladder and a bladder casing, the bladder has the cavity formed therein, the bladder casing comprises an inner space, the bladder is movably disposed in the inner space, and the border portion is disposed on a side surface of the bladder casing away from the shoulder.

4. The repair device for a shoulder joint of claim 1, wherein the repair portion is a plate-like structure that is fixed to the humeral head by an anchor or a suture.

5. The prosthetic device for a shoulder joint according to claim 1, wherein the bordering portion comprises a woven region, and a surface of the prosthetic portion and a surface of the cushioning portion are fixed by the woven region.

6. The prosthetic device for a shoulder joint according to claim 5, wherein the braided region contains at least a portion of a covering formed by braiding the cushioning portion surface with a braided wire, the covering being formed by extending braiding from the cushioning portion to the prosthetic portion with the braided wire.

7. The prosthetic device for a shoulder joint according to claim 6, characterized in that the material of the braided wire is polyethylene, titanium alloy or developer modified yarn.

8. The prosthetic device for a shoulder joint according to claim 1, characterized in that the bordering portion contains a heat fusion connecting region by which a surface of the prosthetic portion and a surface of the cushioning portion are heat-fused.

9. The prosthetic device for a shoulder joint according to claim 1, wherein the bordering portion comprises an adhesive layer, and a surface of the prosthetic portion and a surface of the cushioning portion are adhesively fixed by the adhesive layer.

10. The prosthetic device for a shoulder joint of claim 1, further comprising:

the connecting part is formed by connecting the surface of one side, close to the acromion, of the repairing part through the binding band, and the buffering part is fixed on the repairing part through the binding band.

11. The prosthetic device for a shoulder joint according to any one of claims 1-10, wherein the cushion is a non-degradable balloon or a degradable balloon; and/or the repair part is a non-degradable patch, a biological patch or a composite patch.

12. The prosthetic device for a shoulder joint according to any one of claims 1-10, wherein the cushioning portion is a degradable balloon and the repair portion is a non-degradable patch.

13. Repair device for a shoulder joint according to any one of claims 1-10, characterized in that the prosthesis comprises a curvature, recess or protrusion on the side close to the humeral head for adaptation to the shoulder crest or the humeral head.

14. The prosthetic device for a shoulder joint according to any one of claims 1 to 10, characterized in that the prosthesis is quasi-square, the length of the prosthesis being between 20mm and 50 mm.

15. A prosthesis system, comprising:

the prosthetic device of any one of claims 1-14;

and the conveying device is connected with the repairing device and is used for conveying the repairing device.

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