Graft grasping device for rotator cuff operation

Abstract

The utility model provides a graft gripping device for rotator cuff surgery, which is provided with a handle component, the handle component comprises a handle front-end fixing section, a handle middle locking section and a handle rear-end gripping section, a first fixing hole and a second fixing hole are arranged in the handle front-end fixing section, the second fixing hole is a through hole, and the handle front-end fixing section is connected with the handle middle locking section. Suture fixing parts are arranged at the two ends of the front end fixing section of the handle respectively, suture clamping grooves are formed in the rear ends of the two suture fixing parts respectively, a groove is formed in the middle locking section of the handle, and a fixed supporting rod and a rotary supporting rod are arranged on the front end fixing section of the handle. The problems that when an endoscopic surgery is adopted to treat rotator cuff tearing at present, due to the fact that a dermis graft is small in thickness and soft in material, after the dermis graft enters a lesion position through an incision, the dermis graft is in an irregular bending state and is difficult to unfold, and the overall time of the surgery is delayed are solved. The utility model can be widely applied to the grasping of the dermis graft in the rotator cuff operation.

Description

Technical Field

[0001] The utility model relates to a medical graft grasping device, in particular to a graft grasping device for rotator cuff surgery. Background Art

[0002] Rotator cuff tear is a common condition in sports injuries. Usually small tears can be treated by external fixation or anchor fixation. However, for larger tendon tears, it will cause tendon ends to retract or scar formation. At this time, rotator cuff surgery is required, using dermal grafts for auxiliary bridging fixation.

[0003] Rotator cuff surgery usually uses endoscopic surgery, which has the characteristics of small incision and narrow operation channel, which is conducive to the rapid healing of the patient's postoperative incision. However, due to the thin thickness and soft material of the dermal graft, when entering the lesion site through the incision, the dermal graft is already in an irregularly bent state and is difficult to unfold, delaying the overall operation time. Therefore, there is an urgent need for a dermal graft grasping device that can quickly unfold the dermal graft after entering the lesion site and accurately place it at the lesion site to facilitate surgical implantation. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a graft grasping device for rotator cuff surgery. The graft grasping device for rotator cuff surgery can quickly unfold the dermal graft and accurately place it at the lesion position after the dermal graft enters the lesion position. The operation is convenient and quick, and the operation time is shortened.

[0005] To this end, the technical solution of the utility model is a graft grasping device for rotator cuff surgery, which is provided with a handle assembly, wherein the handle assembly includes a handle front end fixing section located at the front end position, a handle middle locking section is fixedly provided at the rear end of the handle front end fixing section, and a handle rear end gripping section is fixedly provided at the rear end of the handle middle locking section;

[0006] A first fixing hole and a second fixing hole are provided in the front fixing section of the handle, the second fixing hole is a through hole, and suture fixing parts are provided at both ends of the front fixing section of the handle, and suture clamping grooves are provided at the rear ends of the two suture fixing parts;

[0007] A groove is provided on the locking section in the middle of the handle;

[0008] A fixed support rod and a rotating support rod are provided on the fixed section at the front end of the handle;

[0009] The fixed support rod comprises a fixed support rod rear end fixing section located at the rear end position, the rear end of the fixed support rod rear end fixing section is fixedly connected to the first fixing hole, the front end of the fixed support rod rear end fixing section is fixedly provided with a fixed support rod middle transition section, the fixed support rod middle transition section is bent outwardly at an angle relative to the fixed support rod rear end fixing section, and the front end of the fixed support rod middle transition section is fixedly provided with a fixed support rod front end supporting section;

[0010] Suture fixing holes are respectively provided at the front end positions of the middle transition section of the fixed support rod and the front end supporting section of the fixed support rod;

[0011] The rotating support rod comprises a rotating support rod rear end fixing section located at the rear end position, the rear end of the rotating support rod rear end fixing section is rotationally fixedly connected to the second fixing hole, the front end of the rotating support rod rear end fixing section is fixedly provided with a rotating support rod middle transition section, the rotating support rod middle transition section is bent outwardly at an angle relative to the rotating support rod rear end fixing section, and the front end of the rotating support rod middle transition section is fixedly provided with a rotating support rod front end supporting section;

[0012] Suture fixing holes are respectively provided at the front end positions of the middle transition section of the rotating support rod and the front end supporting section of the rotating support rod;

[0013] A rotation locking assembly is provided in the groove, and the rotation locking assembly includes a rotation plate and a rotation locking plate, and one end of the rotation plate and one end of the rotation locking plate are rotationally fixedly connected through a pin shaft;

[0014] One end of the rotating plate away from the rotating locking plate is fixedly connected to the rear end position of the rear end fixing section of the rotating support rod.

[0015] Preferably, locking grooves are respectively provided on both side end surfaces of the middle locking section of the handle at positions connected to the grooves, and locking bosses are provided on both side end surfaces of the rotating locking sheet.

[0016] Preferably, the number of the suture clamping slots at the rear end positions of the two suture fixing parts is respectively multiple;

[0017] The shape of the suture slot is conical.

[0018] Preferably, a third fixing hole is provided at the front end position of the gripping section at the rear end of the handle, and the rear end position of the fixing section at the rear end of the rotating support rod passes through the groove and is rotationally fixedly connected with the third fixing hole.

[0019] Preferably, the fixed support rod and the rotating support rod are integrally formed.

[0020] Preferably, the angle between the fixed section at the rear end of the fixed support rod and the middle transition section of the fixed support rod is 135°±5°;

[0021] The angle dimension between the fixed section at the rear end of the rotating support rod and the middle transition section of the rotating support rod is 135°±5°.

[0022] The beneficial effects of the utility model are:

[0023] During the operation, the dermal graft is placed between the front end support section of the fixed support rod and the front end support section of the rotating support rod, the sutures at the four corners of the dermal graft are passed through the four suture fixing holes respectively, and then fixed in the corresponding suture slots, the dermal graft is unfolded and locked, and then the rotary locking assembly is turned, the rotating support rod rotates synchronously, and the front end support section of the rotating support rod is rotated to contact the front end support section of the fixed support rod. At this time, the dermal graft is in a folded state, thus reducing the occupied area between the front end support section of the fixed support rod and the front end support section of the rotating support rod, and the front end support section of the fixed support rod and the front end support section of the rotating support rod can carry the dermal graft into the incision channel quickly and accurately without squeezing the incision channel;

[0024] When the dermal graft enters the lesion site, the rotary locking assembly is rotated in the opposite direction, the rotary support rod is rotated in the opposite direction, and the front end support section of the rotary support rod is rotated outward relative to the front end support section of the fixed support rod, so that the dermal graft can be quickly restored to the expanded state and locked, and then the dermal graft is placed at the lesion site for surgical implantation. The entire operation process is simple and quick, which can shorten the overall operation time and promote the patient's postoperative recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 It is the front view of the utility model;

[0027] Figure 3 This utility model Figure 2 Middle AA section view;

[0028] Figure 4 This is the front view of the handle assembly in the utility model;

[0029] Figure 5 This utility model Figure 4 Middle BB section view;

[0030] Figure 6 This utility model Figure 1 Enlarged view of point C in the middle;

[0031] Figure 7 It is a three-dimensional diagram of the rotary locking assembly in the utility model;

[0032] Figure 8 It is the front view of the rotary locking assembly in the utility model.

[0033] Explanation of symbols in the figure:

[0034] 1. Handle assembly; 101. Front end fixing section of handle; 10101. First fixing hole; 10102. Second fixing hole; 10103. Suture slot; 10104. Suture fixing part; 102. Middle locking section of handle; 10201. Groove; 10202. Locking groove; 103. Rear end holding section of handle; 10301. Third fixing hole; 2. Fixed support rod; 201. Rear end fixing section of fixed support rod; 202. Middle transition section of fixed support rod; 203. Front end supporting section of fixed support rod; 3. Rotating support rod; 301. Rear end fixing section of rotating support rod; 302. Middle transition section of rotating support rod; 303. Front end supporting section of rotating support rod; 4. Suture fixing hole; 5. Rotating locking assembly; 501. Rotating plate; 502. Rotating locking plate; 50201. Locking boss; 503. Pin shaft. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with embodiments.

[0036] pass Figure 1-Figure 8 It can be seen that the graft grasping device for rotator cuff surgery is provided with a handle assembly 1, which includes a handle front end fixing section 101 located at the front end position, a handle middle locking section 102 is fixed to the rear end of the handle front end fixing section 101, and a handle rear end gripping section 103 is fixed to the rear end of the handle middle locking section 102.

[0037] A first fixing hole 10101 and a second fixing hole 10102 are provided in the front fixing section 101 of the handle. The second fixing hole 10102 is a through hole. Suture fixing parts 10104 are provided at both ends of the front fixing section 101 of the handle. Suture slots 10103 are provided at the rear ends of the two suture fixing parts 10104 for fixing the sutures at the four corners of the dermal graft.

[0038] A groove 10201 is provided on the middle locking section 102 of the handle.

[0039] A fixed support rod 2 and a rotating support rod 3 are provided on the front end fixed section 101 of the handle, the fixed support rod 2 includes a fixed support rod rear end fixed section 201 located at the rear end position, the rear end of the fixed support rod rear end fixed section 201 is fixedly connected to the first fixing hole 10101, the front end of the fixed support rod rear end fixed section 201 is fixedly provided with a fixed support rod middle transition section 202, the fixed support rod middle transition section 202 is bent outwardly relative to the fixed support rod rear end fixed section 201, the front end of the fixed support rod middle transition section 202 is fixedly provided with a fixed support rod front end support section 203, the front ends of the fixed support rod middle transition section 202 and the fixed support rod front end support section 203 The positions are respectively provided with suture fixing holes 4, the rotating support rod 3 includes a rotating support rod rear end fixing section 301 located at the rear end position, the rear end of the rotating support rod rear end fixing section 301 is rotationally fixedly connected with the second fixing hole 10102, the front end of the rotating support rod rear end fixing section 301 is fixedly provided with a rotating support rod middle transition section 302, the rotating support rod middle transition section 302 is bent outwardly at an angle relative to the rotating support rod rear end fixing section 301, the front end of the rotating support rod middle transition section 302 is fixedly provided with a rotating support rod front end supporting section 303, and the front ends of the rotating support rod middle transition section 302 and the rotating support rod front end supporting section 303 are respectively provided with suture fixing holes 4.

[0040] During the operation, the sutures at the four corners of the dermal graft are passed through the suture fixing holes 4 and fixed to the inside of the suture slot 10103, so that the dermal graft can be unfolded and locked between the front end support section 203 of the fixed support rod and the front end support section 303 of the rotating support rod.

[0041] A rotation locking assembly 5 is disposed in the groove 10201 . The rotation locking assembly 5 includes a rotation piece 501 and a rotation locking piece 502 . One end of the rotation piece 501 and one end of the rotation locking piece 502 are rotationally fixedly connected via a pin shaft 503 .

[0042] One end of the rotating piece 501 away from the rotating locking piece 502 is fixedly connected to the rear end position of the rear end fixing section 301 of the rotating support rod.

[0043] The rotary locking assembly 5 can rotate in the groove 10201 , and when the rotary locking assembly 5 rotates, the rotary support rod 3 is driven to rotate synchronously.

[0044] The two side end surfaces of the middle locking section 102 of the handle are respectively provided with locking grooves 10202 at the positions connected to the groove 10201 , and the two side end surfaces of the rotating locking piece 502 are provided with locking bosses 50201 , which can be inserted into the locking grooves 10202 .

[0045] During the surgical operation, after the rotary locking assembly 5 has completed its rotation to one side, the locking boss 50201 is inserted into the locking groove 10202 to prevent the front end support segment 303 of the rotary support rod from rotating to a contact position with the front end support segment 203 of the fixed support rod or rotating to a position where the dermal graft is fully unfolded. In this case, due to external factors, the rotary support rod 3 may rotate in the opposite direction, thereby further ensuring the smooth progress of the surgical operation.

[0046] If the rotating support rod 3 rotates in the opposite direction during the process of the dermal graft entering through the incision channel, the front end support segment 203 of the fixed support rod or the front end support segment 303 of the rotating support rod will cause squeezing damage to the incision channel. If the rotating support rod 3 rotates in the opposite direction during the process of suturing the dermal graft, the dermal graft will not be effectively unfolded, which will directly affect the suturing state of the dermal graft.

[0047] There are multiple suture slots 10103 at the rear end of the two suture fixing parts 10104. When one of the suture slots 10103 fails, the other suture slot 10103 on the same side can be used to avoid the problem that the operation cannot be performed normally due to a failure of the suture slot 10103 during the operation, thereby ensuring that the operation proceeds smoothly as scheduled.

[0048] The shape of the suture clamping slot 10103 is conical. The conical suture clamping slot 10103 can clamp the suture more stably, ensuring that the suture is not easy to loosen after being clamped, and further preventing the dermal graft from loosening after being unfolded.

[0049] A third fixing hole 10301 is provided at the front end position of the gripping section 103 at the rear end of the handle, and the rear end position of the rear end fixing section 301 of the rotating support rod is rotationally fixedly connected through the groove 10201 and the third fixing hole 10301. The rear end position of the rear end fixing section 301 of the rotating support rod is rotationally positioned through the third fixing hole 10301, which can increase the rotation stability of the rotating locking assembly 5, thereby ensuring the smoothness of the rotating support rod 3 during rotation.

[0050] The fixed support rod 2 and the rotating support rod 3 are both integrally formed, which can increase the rigidity of the fixed support rod 2 and the rotating support rod 3 and the stability of their inherent shapes.

[0051] The angle dimension between the fixed section 201 at the rear end of the fixed support rod and the middle transition section 202 of the fixed support rod is 135°±5°, and the angle dimension between the fixed section 301 at the rear end of the rotating support rod and the middle transition section 302 of the rotating support rod is 135°±5°.

[0052] This angle dimension can ensure that the dermal graft is fully unfolded. When the sutures pass through the suture fixing holes 4 on the middle transition section 202 of the fixed support rod and the middle transition section 302 of the rotating support rod, the force directions of the two sutures are respectively perpendicular to the directions of the middle transition section 202 of the fixed support rod and the middle transition section 302 of the rotating support rod, so that the dermal graft is stretched outward and obliquely backward, thereby fully unfolding the dermal graft.

[0053] The method of using the graft grasping device for rotator cuff surgery is as follows: place the dermal graft to a position between the front end support segment 203 of the fixed support rod and the front end support segment 303 of the rotating support rod, pass the sutures at the four corners of the dermal graft through the four suture fixing holes 4 respectively, and then fix the sutures in the corresponding suture slots 10103, unfold and lock the dermal graft, and then rotate the rotating locking assembly 5, the rotating support rod 3 rotates synchronously, and the front end support segment 303 of the rotating support rod is rotated to contact with the front end support segment 203 of the fixed support rod. At this time, the dermal graft is in a folded state, thus reducing the occupied area between the front end support segment 203 of the fixed support rod and the front end support segment 303 of the rotating support rod, and the front end support segment 203 of the fixed support rod and the front end support segment 303 of the rotating support rod can carry the dermal graft into the incision channel quickly and accurately without squeezing the incision channel;

[0054] When the dermal graft enters the lesion site, the rotary locking assembly 5 is rotated in the opposite direction, the rotary support rod 3 is rotated in the opposite direction, and the front end support section 303 of the rotary support rod is rotated outward relative to the front end support section 203 of the fixed support rod, so that the dermal graft can be quickly restored to the expanded state and locked, and then the dermal graft is placed at the lesion site for surgical implantation. The entire operation process is simple and quick, which can shorten the overall operation time and promote the patient's postoperative recovery.

[0055] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A graft grasping device for rotator cuff surgery, characterized by: A handle assembly is provided, the handle assembly includes a handle front end fixing section located at the front end position, a handle middle locking section is fixedly provided at the rear end of the handle front end fixing section, and a handle rear end gripping section is fixedly provided at the rear end of the handle middle locking section; A first fixing hole and a second fixing hole are provided in the front fixing section of the handle, the second fixing hole is a through hole, and suture fixing parts are provided at both ends of the front fixing section of the handle, and suture clamping grooves are provided at the rear ends of the two suture fixing parts; A groove is provided on the middle locking section of the handle; A fixed support rod and a rotating support rod are provided on the front fixed section of the handle; The fixed support rod comprises a fixed support rod rear end fixing section located at the rear end position, the rear end of the fixed support rod rear end fixing section is fixedly connected to the first fixing hole, the front end of the fixed support rod rear end fixing section is fixedly provided with a fixed support rod middle transition section, the fixed support rod middle transition section is bent outwardly at an angle relative to the fixed support rod rear end fixing section, and the front end of the fixed support rod middle transition section is fixedly provided with a fixed support rod front end supporting section; Suture fixing holes are respectively provided at the front ends of the middle transition section of the fixed support rod and the front end supporting section of the fixed support rod; The rotating support rod comprises a rotating support rod rear end fixing section located at the rear end position, the rear end of the rotating support rod rear end fixing section is rotatably fixedly connected to the second fixing hole, the front end of the rotating support rod rear end fixing section is fixedly provided with a rotating support rod middle transition section, the rotating support rod middle transition section is bent outwardly at an angle relative to the rotating support rod rear end fixing section, and the front end of the rotating support rod middle transition section is fixedly provided with a rotating support rod front end supporting section; Suture fixing holes are respectively provided at the front ends of the middle transition section of the rotating support rod and the front end supporting section of the rotating support rod; A rotation locking assembly is provided in the groove, and the rotation locking assembly includes a rotation plate and a rotation locking plate, and one end of the rotation plate and one end of the rotation locking plate are rotationally fixedly connected through a pin shaft; One end of the rotating piece away from the rotating locking piece is fixedly connected to the rear end position of the rear end fixing section of the rotating support rod.

2. The graft grasping device for rotator cuff surgery according to claim 1, characterized in that: The two side end surfaces of the middle locking section of the handle are respectively provided with locking grooves at positions connected to the grooves, and the two side end surfaces of the rotating locking piece are provided with locking bosses.

3. The graft grasping device for rotator cuff surgery according to claim 1, characterized in that: The number of the suture slots at the rear ends of the two suture fixing parts is respectively multiple; The shape of the suture clamping groove is conical.

4. The graft grasping device for rotator cuff surgery according to claim 1, characterized in that: A third fixing hole is provided at the front end position of the rear end gripping section of the handle, and the rear end position of the rear end fixing section of the rotating support rod passes through the groove and is rotationally fixedly connected with the third fixing hole.

5. The graft grasping device for rotator cuff surgery according to claim 1, characterized in that: The fixed support rod and the rotating support rod are both integrally formed.

6. The graft grasping device for rotator cuff surgery according to claim 1, characterized in that: The angle between the fixed section at the rear end of the fixed support rod and the intermediate transition section of the fixed support rod is 135°±5°; The angle dimension between the rear end fixing section of the rotating support rod and the middle transition section of the rotating support rod is 135°±5°.

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