Arthroscopic rotator cuff repair positioner

Abstract

The present invention provides a rotator cuff repair positioner under shoulder arthroscopy, comprising a flat suture needle guide component and a suture needle positioning component, wherein the suture needle guide component is provided with a plurality of needle entry holes at different angles along its length direction, and the needle entry holes all pass through the center line of the suture needle guide component, and one end of the suture needle guide component is provided with a slot fixed to the suture needle positioning component, and the suture needle positioning component is divided into a vertical part and a horizontal part perpendicular to each other, wherein the vertical part is a handle, and is fixedly connected to the slot of the suture needle guide component, and the free end of the horizontal part is provided with a suture needle positioning hole, and the suture needle is positioned in the suture needle positioning hole after passing through the needle entry hole on the suture needle guide component. The positioner can help the surgical operator establish a reasonable and accurate operation approach, and is more helpful for the operator to accurately and quickly complete the repair and suturing of the rotator cuff tear, thereby obtaining the best surgical effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an arthroscopic rotator cuff repair positioner. Background Art

[0002] Shoulder injury refers to damage to the tissues around the shoulder joint caused by degenerative changes in the shoulder tissues including the rotator cuff and ligaments, or due to repeated overuse, trauma, etc., which manifests as shoulder pain.

[0003] In recent years, the diagnosis and treatment level of shoulder joint in China has been improving day by day, the adaptability of shoulder arthroscopy is being continuously developed, and more and more diseases can be treated with shoulder arthroscopy. Minimally invasive shoulder arthroscopy has gradually become the preferred surgical method for many shoulder joint diseases.

[0004] Due to the complexity of shoulder joint injury, shoulder arthroscopy requires high technical requirements for surgeons. Shoulder arthroscopy needs to be positioned on the body surface, the surgical approach needs to be prepared, the operation needs to be performed in the shoulder joint cavity, and the surgical steps such as endoscopic synovectomy, cleaning, osteophyte removal, anchor implantation and tissue suturing need to be completed. Shoulder arthroscopy can use a variety of arthroscopic channels, mainly divided into posterior channel, anterior channel and lateral channel. The appropriate approach can be selected according to the purpose of the operation. Among them, the posterior channel is the most commonly used observation and monitoring channel, which can see the full picture of the glenohumeral joint and the subacromial space. It is often used in conjunction with the anterior channel during surgery, while the lateral approach is mostly used for observation and operation channels for rotator cuff repair. The combination of these approaches allows the arthroscopy and its supporting instruments to be used at the same time. The selection and positioning of the surgical approach during the operation has a great impact on the convenience of the surgical operation. For example, during rotator cuff repair surgery, it is often necessary to establish several surgical approaches. The doctor needs to determine the surface needle insertion point and needle insertion direction through long needle puncture to determine the surgical position target under the arthroscopic operation; this guides the selection of the surgical skin incision position and the direction of the arthroscopic surgical operation tunnel establishment. If the surgical approach is not selected accurately enough, the operation time will be prolonged (the operator needs to use a long needle to repeatedly puncture and locate until a suitable and ideal approach position is found. There is a lot of bleeding during shoulder arthroscopy, and sometimes the surgical field of view is not clear, making it even more difficult to locate the long needle), and the field of view under the arthroscopy will be difficult to operate; physicians with insufficient surgical experience will lead to the failure of shoulder arthroscopy.

[0005] In conventional arthroscopic surgical rotator cuff repair operations, the surgeon often implants a wire anchor in the human body to perform the operation and complete the suturing and fixation of the rotator cuff injury or torn tissue. Due to the complexity of the shoulder joint structure, the surgeon needs to have skilled techniques when performing this type of operation, and the learning and mastering of this surgical technique takes a long time. In the operation of rotator cuff injury (tear) surgery, the surgeon needs to tie the suture of the wire anchor outside the body under the guidance of the arthroscopy, and then complete the suturing and fixation of the tissue at the rotator cuff tear in the subacromial space of the shoulder joint through the established surgical access channel. The selection of the implantation position of the wire anchor on the surface of the humeral head during the operation is particularly important. If the fixation position deviates, it will result in:

[0006] 1. The tension of the suture knots used to fix the rotator cuff tissue is too high, which makes it difficult to fix or fix the rotator cuff tissue. First, the shear force caused by the sutures is too large. Second, the risk of re-tear after rotator cuff suture increases.

[0007] 2. Because the position and angle of the wire anchor are fixed under arthroscopy, if the positioning point and angle are not selected accurately, there will be risks such as anchor falling off and insufficient traction force, which may easily cause secondary damage to the patient's affected area.

[0008] Given that there is currently no dedicated positioning and aiming system on the domestic market for suturing rotator cuff tears; all current arthroscopic surgeries will always face greater difficulties and challenges when suturing larger rotator cuff tears or smaller rotator cuff tears and other special situations.

[0009] After searching the prior art, the invention patent with application publication number CN 104367356A discloses a tunnel aiming device for rotator cuff repair, including an aiming frame, and a K-type pin, a drill rod, a lead tube, and a positioning rod used in conjunction with the aiming frame. The aiming frame includes a main frame, a main frame handle, and an adjustable aiming block. The two ends of the main frame are each provided with a socket matching the adjustable aiming block, the root of the main frame is provided with a K-type hole matching the K-type pin, and the adjustable aiming block is provided with a tunnel hole that passes through the block. The positioning of this device is not fast and accurate enough. Summary of the invention

[0010] In view of the defects in the prior art, the purpose of the present invention is to provide a rotator cuff repair positioner under shoulder arthroscopy.

[0011] According to the present invention, a shoulder arthroscopic rotator cuff repair positioner includes a suture needle guide component and a suture needle positioning component, wherein the suture needle positioning component is divided into a vertical portion and a horizontal portion perpendicular to each other, wherein the vertical portion is fixedly connected to one end of the suture needle guide component, and a suture needle positioning hole is provided at the free end of the horizontal portion, wherein the suture needle guide component is provided with a plurality of needle entry holes at different angles along its length direction, wherein the needle entry holes all pass through the center line of the suture needle guide component, and the suture needle is positioned in the suture needle positioning hole of the suture needle positioning component after passing through the needle entry hole on the suture needle guide component. In order to facilitate the doctor's grip and prevent slipping, a holding curve is provided at the vertical portion of the suture needle positioning component.

[0012] Furthermore, among the multiple needle entry holes at different angles on the suture needle guiding component, the needle entry hole in the middle position allows the suture needle to be inserted vertically and then positioned in the suture needle positioning hole of the suture needle positioning component, and the needle entry holes on the left and right sides deviate from the needle entry hole in the middle position by a certain angle, and the directions of deviation of the needle entry holes on the left and right sides are opposite, and there is at least one suture needle positioning hole.

[0013] Furthermore, the suture needle guide component is divided into a flat needle insertion part and a cylindrical fixing part, the flat needle insertion part is provided with a plurality of needle insertion holes at different angles along its length direction, the needle insertion holes all pass through the center line of the flat needle insertion part, the cylindrical fixing part is connected to the vertical part of the suture needle positioning component through a fixing piece, one end of the flat needle insertion part is sleeved in the cylindrical fixing part, and the flat needle insertion part and the cylindrical fixing part are both provided with corresponding adjustment holes. When there is one suture needle positioning hole, the flat needle insertion part and the cylindrical fixing part can be an integral structure, that is, integrally formed. When there are two or more suture needle positioning holes, the flat needle insertion part and the cylindrical fixing part are separate structures. By adjusting the length of the flat needle insertion part extending into the cylindrical fixing part to the left and right, the suture needles passing through multiple needle insertion holes at different angles can be positioned in a certain suture needle positioning hole. After the adjustment is completed, the positioning parts are inserted into the corresponding adjustment holes on the flat needle insertion part and the cylindrical fixing part to fix the flat needle insertion part and the cylindrical fixing part together.

[0014] Furthermore, the fixing member is a buckle, the upper part of the buckle is connected to the cylindrical fixing part through a slot provided in the cylindrical fixing part, and the lower part of the buckle is provided with a fixing through hole for connecting the vertical part of the suture needle positioning component.

[0015] Furthermore, a connecting hole is provided at the top end of the vertical portion of the suture needle positioning component, and the connecting hole is connected to the fixing through hole at the lower portion of the buckle through a fastener.

[0016] Furthermore, the top of the vertical part of the suture needle positioning component is provided with a groove that cooperates with the lower part of the buckle, the side wall of the groove is provided with a connecting hole, and the lower part of the buckle and the top of the vertical part are fixed by fixing through holes, fasteners and connecting holes.

[0017] Furthermore, the fixing piece is a buckle, the upper part of the buckle is connected to the cylindrical fixing part through a slot arranged in the cylindrical fixing part, the lower part of the buckle is provided with an internal thread for connecting the vertical part of the suture needle positioning component, and the top end of the vertical part of the suture needle positioning component is provided with an external thread that cooperates with the internal thread.

[0018] Furthermore, the fixing piece is a buckle, the upper part of the buckle is connected to the cylindrical fixing part through a slot arranged in the cylindrical fixing part, the lower part of the buckle is provided with an external thread for connecting the vertical part of the suture needle positioning component, and the top end of the vertical part of the suture needle positioning component is provided with an internal thread matching the external thread.

[0019] Furthermore, the radius of the suture needle increases from thin to thick, an elastic fixing ring is provided in the needle entry hole, and the cavity of the needle entry hole is a frustum, which matches the radius of the suture needle, thereby preventing the needle from being inserted too far into the hole.

[0020] Furthermore, the suture needle guiding component and the suture needle positioning component are made of titanium alloy.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The arthroscopic rotator cuff repair locator provided by the present invention can help the surgical operator establish a reasonable and accurate operation approach, complete the positioning of the rotator cuff tear tissue, pre-suturing the tissue edge and surface, and the implantation position of the suture anchor; it is more helpful for the operator to accurately and quickly complete the rotator cuff tear repair suture, so as to obtain the best surgical effect.

[0023] 2. The present invention provides an arthroscopic rotator cuff repair locator, which can quickly and accurately guide the surgeon to locate the surgical target under arthroscopy during surgery and select a more appropriate surgical approach, which can greatly save surgical operation time and cost, reduce surgical risks, and improve the success rate of surgery.

[0024] 3. The present invention provides an arthroscopic rotator cuff repair positioner, in which the radius of the suture needle increases from thin to thick, and the hole of the needle hole is a cone-shaped cavity, which matches the radius of the suture needle. At the same time, an elastic fixing ring is provided in the needle hole to prevent the needle from being inserted too far into the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the suture needle guiding component of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the fixing member in Embodiments 1 and 2 of the present invention;

[0029] Figure 4 This is a schematic structural diagram of a suture needle positioning component in Example 1 of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the suture needle positioning component in Example 2 of the present invention. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0032] like Figures 1 to 5 As shown, an arthroscopic rotator cuff repair locator provided by the present invention can quickly and accurately guide the surgeon to locate the surgical target under arthroscopy during surgery and select a more appropriate surgical approach, which can greatly save surgical operation time and surgical costs, reduce surgical risks, and improve the success rate of the surgery.

[0033] Example 1

[0034] A shoulder arthroscopic rotator cuff repair positioner comprises a suture needle guide component 1 and a suture needle positioning component 2 (the suture needle guide component 1 and the suture needle positioning component 2 are titanium alloys), the suture needle guide component 1 is divided into a flat needle insertion part 11 and a cylindrical fixing part 12, the flat needle insertion part 11 is provided with a plurality of needle insertion holes 111 at different angles along its length direction, and the needle insertion holes 111 all pass through the center line of the flat needle insertion part 11; one end of the flat needle insertion part 11 is sleeved in the cylindrical fixing part 12, and the flat needle insertion part 11 and the cylindrical fixing part 12 are provided with corresponding adjustment holes 5. The suture needle positioning component 2 is divided into a vertical part 21 and a horizontal part 22 perpendicular to each other, the vertical part 21 is fixedly connected to the cylindrical fixing part 12 of the suture needle guide component 1 through a fixing piece, and a suture needle positioning hole 23 is provided at the free end of the horizontal part 22. After the suture needle 3 passes through the needle insertion hole 111 on the suture needle guide component, it is positioned in the suture needle positioning hole 23 of the suture needle positioning component. Among them, the needle entry hole in the middle position allows the suture needle 3 to be positioned in the suture needle positioning hole 23 of the suture needle positioning component after being inserted vertically. The needle entry holes on the left and right sides deviate from the needle entry hole in the middle position by a certain angle, and the directions of deviation of the needle entry holes on the left and right sides are opposite. There is at least one suture needle positioning hole 23.

[0035] The radius of the suture needle 3 increases from thin to thick, and the hole of the needle hole 111 is a frustum, which matches the radius of the suture needle 3. At the same time, an elastic fixing ring is provided in the needle hole to prevent the needle from being inserted too far into the hole.

[0036] The fixing member is a buckle 4, the upper portion 41 of the buckle 4 is connected to the cylindrical fixing portion 12 through a slot 121 provided in the cylindrical fixing portion 12, and the lower portion 42 of the buckle 4 is provided with a fixing through hole 421 for connecting the vertical portion 21 of the suture needle positioning component. The top of the vertical portion 21 of the suture needle positioning component is provided with a connecting hole 211, and the connecting hole 211 is connected to the fixing through hole 421 of the lower portion of the buckle through a fastener.

[0037] Example 2

[0038] A shoulder arthroscopic rotator cuff repair positioner comprises a suture needle guide component 1 and a suture needle positioning component 2 (the suture needle guide component 1 and the suture needle positioning component 2 are titanium alloys), the suture needle guide component 1 is divided into a flat needle insertion part 11 and a cylindrical fixing part 12, the flat needle insertion part 11 is provided with a plurality of needle insertion holes 111 at different angles along its length direction, and the needle insertion holes 111 all pass through the center line of the flat needle insertion part 11; one end of the flat needle insertion part 11 is sleeved in the cylindrical fixing part 12, and the flat needle insertion part 11 and the cylindrical fixing part 12 are provided with corresponding adjustment holes 5. The suture needle positioning component 2 is divided into a vertical part 21 and a horizontal part 22 perpendicular to each other, the vertical part 21 is fixedly connected to the cylindrical fixing part 12 of the suture needle guide component 1 through a fixing piece, and a suture needle positioning hole 23 is provided at the free end of the horizontal part 22. After the suture needle 3 passes through the needle insertion hole 111 on the suture needle guide component, it is positioned in the suture needle positioning hole 23 of the suture needle positioning component. Among them, the needle entry hole in the middle position allows the suture needle 3 to be positioned in the suture needle positioning hole 23 of the suture needle positioning component after being inserted vertically. The needle entry holes on the left and right sides deviate from the needle entry hole in the middle position by a certain angle, and the directions of deviation of the needle entry holes on the left and right sides are opposite. There is at least one suture needle positioning hole 23.

[0039] The radius of the suture needle 3 increases from thin to thick, and the hole of the needle hole 111 is a frustum, which matches the radius of the suture needle 3. At the same time, an elastic fixing ring is provided in the needle hole to prevent the needle from being inserted too far into the hole.

[0040] The fixing member is a buckle 4, the upper part 41 of the buckle 4 is connected to the cylindrical fixing part 12 through the slot 121 provided in the cylindrical fixing part 12, and the lower part 42 of the buckle 4 is provided with a fixing through hole 421 for connecting the vertical part 21 of the suture needle positioning component. The top of the vertical part 21 of the suture needle positioning component is provided with a groove 212 that matches the lower part of the buckle, and the side wall of the groove 212 is provided with a connecting hole 211, and the lower part 42 of the buckle and the top of the vertical part 21 are fixed by the fixing through hole 421, the fastener and the connecting hole 211.

[0041] Example 3

[0042] A shoulder arthroscopic rotator cuff repair positioner comprises a suture needle guide component 1 and a suture needle positioning component 2 (the suture needle guide component 1 and the suture needle positioning component 2 are titanium alloys), the suture needle guide component 1 is divided into a flat needle insertion part 11 and a cylindrical fixing part 12, the flat needle insertion part 11 is provided with a plurality of needle insertion holes 111 at different angles along its length direction, and the needle insertion holes 111 all pass through the center line of the flat needle insertion part 11; one end of the flat needle insertion part 11 is sleeved in the cylindrical fixing part 12, and the flat needle insertion part 11 and the cylindrical fixing part 12 are provided with corresponding adjustment holes 5. The suture needle positioning component 2 is divided into a vertical part 21 and a horizontal part 22 perpendicular to each other, the vertical part 21 is fixedly connected to the cylindrical fixing part 12 of the suture needle guide component 1 through a fixing piece, and a suture needle positioning hole 23 is provided at the free end of the horizontal part 22. After the suture needle 3 passes through the needle insertion hole 111 on the suture needle guide component, it is positioned in the suture needle positioning hole 23 of the suture needle positioning component. Among them, the needle entry hole in the middle position allows the suture needle 3 to be positioned in the suture needle positioning hole 23 of the suture needle positioning component after being inserted vertically. The needle entry holes on the left and right sides deviate from the needle entry hole in the middle position by a certain angle, and the directions of deviation of the needle entry holes on the left and right sides are opposite. There is at least one suture needle positioning hole 23.

[0043] The radius of the suture needle 3 increases from thin to thick, and the hole of the needle hole 111 is a frustum, which matches the radius of the suture needle 3. At the same time, an elastic fixing ring is provided in the needle hole to prevent the needle from being inserted too far into the hole.

[0044] The fixing piece is a buckle 4, the upper part 41 of the buckle 4 is connected to the cylindrical fixing part 12 through a slot 121 arranged in the cylindrical fixing part 12, the lower part 42 of the buckle 4 is provided with an internal thread for connecting the vertical part 21 of the suture needle positioning component, and the top end of the vertical part 21 of the suture needle positioning component is provided with an external thread matching the internal thread.

[0045] Example 4

[0046] A shoulder arthroscopic rotator cuff repair positioner comprises a suture needle guide component 1 and a suture needle positioning component 2 (the suture needle guide component 1 and the suture needle positioning component 2 are titanium alloys), the suture needle guide component 1 is divided into a flat needle insertion part 11 and a cylindrical fixing part 12, the flat needle insertion part 11 is provided with a plurality of needle insertion holes 111 at different angles along its length direction, and the needle insertion holes 111 all pass through the center line of the flat needle insertion part 11; one end of the flat needle insertion part 11 is sleeved in the cylindrical fixing part 12, and the flat needle insertion part 11 and the cylindrical fixing part 12 are provided with corresponding adjustment holes 5. The suture needle positioning component 2 is divided into a vertical part 21 and a horizontal part 22 perpendicular to each other, the vertical part 21 is fixedly connected to the cylindrical fixing part 12 of the suture needle guide component 1 through a fixing piece, and a suture needle positioning hole 23 is provided at the free end of the horizontal part 22. After the suture needle 3 passes through the needle insertion hole 111 on the suture needle guide component, it is positioned in the suture needle positioning hole 23 of the suture needle positioning component. Among them, the needle hole in the middle position allows the suture needle 3 to be positioned in the suture needle positioning hole 23 of the suture needle positioning component after vertical insertion, and the needle holes on the left and right sides deviate from the needle hole in the middle position by a certain angle, and the directions of deviation of the needle holes on the left and right sides are opposite, and there is at least one suture needle positioning hole 23.

[0047] The radius of the suture needle 3 increases from thin to thick, and the hole of the needle hole 111 is a frustum, which matches the radius of the suture needle 3. At the same time, an elastic fixing ring is provided in the needle hole to prevent the needle from being inserted too far into the hole.

[0048] The fixing piece is a buckle 4, the upper part 41 of the buckle 4 is connected to the cylindrical fixing part 12 through a slot 121 arranged in the cylindrical fixing part 12, the lower part 42 of the buckle 4 is provided with an external thread for connecting the vertical part 21 of the suture needle positioning component, and the top end of the vertical part 21 of the suture needle positioning component is provided with an internal thread matching the external thread.

[0049] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A rotator cuff repair positioner under shoulder arthroscopy, characterized in that: The invention comprises a suturing needle guide component and a suturing needle positioning component, wherein the suturing needle positioning component is divided into a vertical part and a horizontal part which are perpendicular to each other, wherein the vertical part is fixedly connected to one end of the suturing needle guide component, and a suturing needle positioning hole is arranged at the free end of the horizontal part, and a plurality of needle entry holes at different angles are arranged on the suturing needle guide component along its length direction, and the needle entry holes all pass through the center line of the suturing needle guide component, and the suturing needle is positioned in the suturing needle positioning hole of the suturing needle positioning component after passing through the needle entry hole on the suturing needle guide component; the radius of the suturing needle ranges from thin to thick, and an elastic fixing ring is arranged in the needle entry hole, and the hole cavity of the needle entry hole is a frustum, which matches the radius of the suturing needle; Among the multiple needle entry holes at different angles on the suture needle guiding component, the needle entry hole in the middle position allows the suture needle to be inserted vertically and then positioned in the suture needle positioning hole of the suture needle positioning component. The needle entry holes on the left and right sides deviate from the needle entry hole in the middle position by a certain angle, and the directions of deviation of the needle entry holes on the left and right sides are opposite. There is at least one suture needle positioning hole.

2. The arthroscopic rotator cuff repair positioner according to claim 1, characterized in that: The suture needle guiding component is divided into a flat needle insertion portion and a cylindrical fixing portion. The flat needle insertion portion is provided with a plurality of needle insertion holes at different angles along its length direction, and the needle insertion holes all pass through the center line of the flat needle insertion portion. The cylindrical fixing portion is connected to the vertical portion of the suture needle positioning component through a fixing piece, and one end of the flat needle insertion portion is sleeved in the cylindrical fixing portion. The flat needle insertion portion and the cylindrical fixing portion are both provided with adjustment holes with corresponding positions.

3. The arthroscopic rotator cuff repair positioner according to claim 2, characterized in that: The fixing member is a buckle, the upper part of the buckle is connected to the cylindrical fixing part through a clamping groove arranged in the cylindrical fixing part, and the lower part of the buckle is provided with a fixing through hole for connecting the vertical part of the suture needle positioning component.

4. The arthroscopic rotator cuff repair positioner according to claim 3, characterized in that: A connecting hole is provided at the top end of the vertical portion of the suture needle positioning component, and the connecting hole is connected to the fixing through hole at the lower portion of the buckle through a fastener.

5. The arthroscopic rotator cuff repair positioner according to claim 3, characterized in that: The top of the vertical part of the suture needle positioning component is provided with a groove that matches the lower part of the buckle, and the side wall of the groove is provided with a connecting hole. The lower part of the buckle and the top of the vertical part are fixed by fixing through holes, fasteners and connecting holes.

6. The arthroscopic rotator cuff repair positioner according to claim 2, characterized in that: The fixing piece is a buckle, the upper part of which is connected to the cylindrical fixing part via a slot arranged in the cylindrical fixing part, the lower part of which is provided with an internal thread for connecting the vertical part of the suture needle positioning component, and the top end of the vertical part of the suture needle positioning component is provided with an external thread that cooperates with the internal thread.

7. The arthroscopic rotator cuff repair positioner according to claim 2, characterized in that: The fixing piece is a buckle, the upper part of which is connected to the cylindrical fixing part via a slot arranged in the cylindrical fixing part, the lower part of which is provided with an external thread for connecting the vertical part of the suture needle positioning component, and the top end of the vertical part of the suture needle positioning component is provided with an internal thread that cooperates with the external thread.

8. The arthroscopic rotator cuff repair positioner according to claim 1, characterized in that: The suture needle guiding component and the suture needle positioning component are made of titanium alloy.

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