Anchor with thread for treating rotator cuff injury

Abstract

The utility model discloses an anchor with a thread for treating rotator cuff injury, and aims to solve the technical problems that in the prior art, an anchor is screwed into sclerotin of a humerus head in a threaded manner, so that the holding force of the anchor is not large, and the anchor is easily pulled out or separated. The medical instrument comprises an anchor main body, the left end of the anchor main body is fixedly connected with a conical end, two second through holes are formed in the middle of the anchor main body, and first through holes are formed in the positions, located on the outer sides of the second through holes, of the front face and the back face of the anchor main body; according to the anchor, the anchor body is arranged to be in the semi-cylindrical shape, the conical end is arranged to be in the semi-conical shape, the planes and the arc faces of the anchor body and the conical end can be tightly attached to the sclerotin, meanwhile, the anchor can be firmly fixed by being matched with the first knitting suture line and the second knitting suture line, and therefore cost is varied, surgical operation is easy and convenient, and operation efficiency is improved. The fixing device is firm in fixation, not prone to falling off or pulling out, satisfactory in postoperative effect, few in postoperative complications, safe and effective.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a wire anchor nail for treating rotator cuff injuries. Background Art

[0002] The rotator cuff is a sleeve-like tendon structure formed by the tendons of the subscapularis, supraspinatus, infraspinatus, and teres minor muscles in front, above, and behind the humeral head. Rotator cuff injury is a common shoulder joint disease in middle-aged and elderly people. With the increase of the elderly population in society, the incidence of rotator cuff injury is also increasing. Rotator cuff injury is the main cause of shoulder joint dysfunction. Rotator cuff injury usually occurs at the insertion point of the supraspinatus muscle, and the shortening will shorten to the recess below the acromioclavicular joint. Most tears are not only transverse, but also longitudinal, making the tear oval or triangular; rotator cuff repair surgery is an effective treatment for rotator cuff injury. Both arthroscopic repair surgery and open surgery can provide patients with satisfactory results.

[0003] Currently, the main fixation methods for repairing rotator cuff injuries include single-row fixation, double-row fixation, and SutureBridge technology, all of which require the placement of anchors. Traditional anchors are screwed into the bone of the humeral head, but the humeral head is cancellous bone. This is particularly true in older patients with osteoporosis, where the anchor's grip is weak, making it prone to pullout or disengagement, leading to surgical failure or even jamming of the anchor in the joint cavity. Therefore, a wired anchor for treating rotator cuff injuries is needed. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a wire anchor for treating rotator cuff injuries. The medical device is mainly intended to solve the technical problem that the anchor in the existing technology is screwed into the bone of the humeral head, which makes the holding force of the anchor weak and easily causes the anchor to be pulled out or detached.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a wire anchor for treating rotator cuff injuries, including an anchor body, the left end of the anchor body is fixedly connected to a tapered end, two second through holes are opened in the middle of the anchor body, and first through holes are opened on the front and back sides of the anchor body and located on the outside of the second through holes, and the first and second braided sutures are interspersed inside the first and second through holes.

[0008] Preferably, the anchor body is semi-cylindrical, the tapered end is semi-conical, and the anchor body and the tapered end are an integral structure.

[0009] Further, the two second through holes are symmetrically distributed, the first through hole is in the shape of a key groove, and the first through hole is in communication with the second through hole.

[0010] Further, the color of the first braided suture is different from that of the second braided suture.

[0011] Further, the first braided suture and the second braided suture are made of non-absorbable materials.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the anchor nail has the beneficial effects that:

[0014] The anchor nail of the utility model has the advantages that the anchor nail body is provided in a semi-cylindrical shape and the tapered end is provided in a semi-conical shape, so that the plane and the arc surface of the anchor nail body and the tapered end can be closely combined with the bone, and the first braided suture and the second braided suture can be used to fix the anchor nail firmly, which not only reduces the cost, but also facilitates the operation, is fixed firmly, is not easy to fall off or be pulled out, has a satisfactory postoperative effect, has few postoperative complications, and is safe and effective. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the anchor nail body and the braided suture connection structure of the utility model;

[0016] Figure 2 is another view of the anchor nail body and the braided suture connection structure of the utility model;

[0017] Figure 3 is a front view of the anchor nail body of the utility model;

[0018] Figure 4 is a schematic view of the anchor nail of the utility model Figure 3 is a sectional view of the anchor nail body of the utility model at A-A;

[0019] Figure 5 is a schematic view of the anchor nail of the utility model after suture.

[0020] The marks in the drawings are: 1, anchor nail body; 2, tapered end; 3, first through hole; 4, second through hole; 5, first braided suture; 6, second braided suture. DETAILED DESCRIPTION

[0021] The present embodiment is a suture anchor with a wire for treating rotator cuff injury, and a schematic view of the structure is as shown in Figures 1-4As shown, including anchor body 1, the left end of anchor body 1 is fixedly connected with the tapered end 2, the middle part of the anchor body 1 is provided with two second through holes 4, the front and back of the anchor body 1 and located outside the second through hole 4 are provided with a first through hole 3, the first through hole 3 and the second through hole 4 are inserted with the first braided suture 5 and the second braided suture 6; through the tapered end 2 can facilitate the anchor body 1 into the bone, at the same time, the first braided suture 5 is inserted from the second through hole 4 on the back side of the anchor body 1 and is inserted into the first through hole 3 on the front side, and then is inserted into the other second through hole 4 on the front side of the anchor body 1, and then the second braided suture 6 and the first braided suture 5 are inserted in the same way.

[0022] Among them, the anchor body 1 is a semi-cylindrical type, the tapered end 2 is a semi-conical type, and the anchor body 1 and the tapered end 2 are an integral structure; in this way, the back of the anchor body 1 and the back of the tapered end 2 are both flat surfaces, which can make the anchor overall adhere to the bone, thereby increasing the holding force of the anchor overall.

[0023] In addition, the two second through holes 4 are symmetrically distributed, the first through hole 3 is in the shape of a key groove, and the first through hole 3 is in communication with the second through hole 4; in this way, the first braided suture 5 and the second braided suture 6 are facilitated to be connected with the anchor body 1.

[0024] In addition, the first braided suture 5 and the second braided suture 6 are different in color; in this way, it is convenient for subsequent precise tendon suture.

[0025] In addition, the first braided suture 5 and the second braided suture 6 are both made of non-absorbable material; in this way, the holding force of the first braided suture 5 and the second braided suture 6 on the anchor body 1 is improved, and the anchor is prevented from being pulled out and separated.

[0026] Working principle: before use, the first braided suture 5 and the second braided suture 6 are inserted into the anchor body 1, specifically, the first braided suture 5 is inserted from the second through hole 4 on the back side of the anchor body 1 and is inserted into the first through hole 3 on the front side, and then is inserted into the other second through hole 4 on the front side of the anchor body 1, and then the second braided suture 6 and the first braided suture 5 are inserted in the same way;

[0027] According to the patient's physical condition and the anesthesiologist's decision, general anesthesia is generally used. Usually, a beach chair position is used, the head is raised to 30°-35°, and a surgical towel or intravenous infusion bag is placed on the medial side of the scapula to stabilize the shoulder scapula. When the patient's head is raised to 30°-35°, the upper surface of the acromion is perpendicular to the ground. Routine disinfection and draping are performed;

[0028] Along the Langer line from the lateral side of the acromion to the coracoid process until the anterior acromion, make a incision about 4-6 cm long on the lateral side of the coracoid process, separate the subcutaneous tissue, identify the intermuscular space in the anterior and middle part of the deltoid muscle and split it longitudinally, and perform shoulder peak forming decompression at the same time;

[0029] Carefully judge the condition of rotator cuff tear, first release the subscapularis muscle, then release the supraspinatus muscle forward, trim the free tendon end, form fresh edge, obtain tissue with enough strength, place 1-2 new type of wire anchor nails into the bone, use corresponding size Kirschner needle or mouth opener to open the bone at the tendon insertion point, then longitudinally insert the nail into the bone, then pull all the suture lines Figure 5 Make the anchor nail body 1 and the tapered end 2 be able to be transversely clamped in the bone, suture the tendon with the two ends of the first braided suture line 5 and the second braided suture line 6; finally, use a C-arm X-ray machine to perform intraoperative fluoroscopy to ensure that the anchor nail is under the bone cortex and is in good position, completely stop bleeding, suture the wound layer by layer, and cover the wound with sterile accessories.

[0030] All the technical features in the embodiment can be freely combined according to actual needs.

[0031] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A suture anchor for treating a rotator cuff injury, characterized by: The utility model provides an anchor nail, including anchor nail body (1), the left end of anchor nail body (1) is fixedly connected with taper end (2), the middle part of anchor nail body (1) is equipped with two second through -hole (4), the front and back of anchor nail body (1) and be located second through -hole (4) outside all are equipped with first through -hole (3), first through -hole (3) and second through -hole (4) inside are inserted with first braided suture (5) and second braided suture (6).

2. The suture anchor for treating rotator cuff injuries of claim 1, wherein: The anchor nail body (1) is a semi-cylindrical type, the taper end (2) is a semi-conical type, and the anchor nail body (1) and the taper end (2) are an integral structure.

3. The suture anchor for treating rotator cuff injuries of claim 1, wherein: The two second through-holes (4) are symmetrically distributed, the first through-hole (3) is in the shape of a key groove, and the first through-hole (3) is in communication with the second through-hole (4).

4. The suture anchor for treating rotator cuff injuries of claim 1, wherein, The first braided suture (5) and the second braided suture (6) are made of non-absorbable material.

5. The suture anchor for treating rotator cuff injuries of claim 1, wherein: The first braided suture (5) and the second braided suture (6) are made of non-absorbable material.

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