Rotator Cuff Repair Devices

Abstract

The present invention relates to the field of medical devices, and discloses a rotator cuff repair device, comprising a repairer body, a sleeve and a bone needle, wherein the sleeve is arranged at the lower end of the repairer body, the bone needle is arranged in the sleeve, a driving structure for driving the bone needle to slide in the sleeve cavity is arranged inside the repairer body, a puncture part of the lower end of the bone needle protruding outside the sleeve is in a predetermined curved shape, a tip and a thread port for driving a suture are arranged at the end of the bone needle, the driving structure comprises a transmission cylinder, a reset mechanism and a positioning device, the transmission cylinder is located at the lower end of the repairer body and is connected to the upper end of the bone needle and can move downward freely under force, the reset mechanism is located at the lower end of the transmission cylinder in the repairer body and can drive the transmission cylinder to move upward in the repairer body, and the positioning device is located on the repairer body and is provided with a function of positioning the up and down movement of the transmission cylinder. When the bone needle is used for puncture and withdrawal, it can be operated by one person, and the operation is simple and practical.

Description

Technical Field

[0001] The invention relates to a medical device for rotator cuff tear surgery, in particular to a rotator cuff repair device. Background Art

[0002] With the development and progress of technology, various medical devices have been developed for pathological symptoms. Rotator cuff repair devices are tools that help surgeons pass sutures through bones, especially for many surgeries that require transosseous sutures to pass along non-straight "paths". When using a flexible wire with shape memory to pass through the area of ​​the tissue to be sutured, the existing corresponding devices generally require multiple people to cooperate in actual application, which is difficult to operate. The cooperation of multiple people also requires sufficient skills and tacit understanding, which has certain obstacles to the promotion and practical application of such devices, and the practicality needs to be further improved. Summary of the invention

[0003] The technical problem solved by the invention is to provide a rotator cuff repair device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a rotator cuff repair device, including a repairer body, a sleeve and a bone needle, the sleeve is arranged at the lower end of the repairer body, the bone needle is arranged in the sleeve, a driving structure for driving the bone needle to slide in the sleeve cavity is arranged inside the repairer body, the puncture part of the lower end of the bone needle protruding outside the sleeve is in a predetermined curved shape, the end of the bone needle is provided with a tip and a thread port for driving the suture, the driving structure includes a transmission column, a reset mechanism and a positioning device, the transmission column is located at the lower end of the repairer body and is connected to the upper end of the bone needle and can move downward freely under force, the reset mechanism is located at the lower end of the transmission column in the repairer body and can drive the transmission column to move upward in the repairer body, and the positioning device is located on the repairer body and is provided with a function of positioning the up and down movement of the transmission column. When the bone needle is used for puncture and withdrawal, it can be operated by one person, and the operation is simple and practical.

[0005] Furthermore, a cylindrical cavity is arranged in the main body of the repair device, the transmission cylinder is located in the cylindrical cavity and can move coaxially, the reset mechanism is located at the lower end of the transmission cylinder in the cylindrical cavity, the upper and lower ends of the main body of the repair device are respectively provided with an upper through hole and a lower through hole connected to the cylindrical cavity, a pushing column that can move along the upper through hole is arranged in the upper through hole, the sleeve is arranged at the lower end of the main body of the repair device, the upper end of the bone needle passes through the lower through hole and is connected to the center position of the lower end of the transmission cylinder by the reset mechanism, a multi-step surrounding convex boss is arranged on the outer cylindrical surface of the transmission cylinder, the boss is a right-angled triangle-shaped boss with the hypotenuse inclined upward from the outer cylindrical surface of the transmission cylinder, the positioning device comprises a first clamping column, a positioning rotating rod, a first positioning spring and a positioning device shell, the positioning device shell is close to the A horizontal first positioning hole is provided on one side near the main body of the repairer, the first clamping column is located on the side of the first positioning hole close to the main body of the repairer, the first positioning spring is located in the first positioning hole away from the main body of the repairer and applies an elastic force toward the main body of the repairer to the first clamping column, the upper surface of the positioning device housing is provided with a rectangular hole vertically connected to the first positioning hole, the middle part of the rotating rod is provided with a first rotating shaft that rotates and fixes it in the rectangular hole, the lower end of the rotating rod is rotatably connected to one end of the first clamping column close to the first positioning spring, the upper end of the rotating rod protrudes from the rectangular hole above the housing of the positioning device, the first clamping column is provided with a first clamping head matching the inclined surface of the boss toward one end of the main body of the repairer, and the first horizontal through hole that allows the first clamping head to move is provided on the main body of the repairer at a position corresponding to the first clamping head. The bone needle can be punctured by knocking the push column, and the bone needle can be withdrawn by toggling the rotating rod.

[0006] Further, a second positioning hole is provided at a corresponding position above the first positioning hole on the positioning device housing, a second clamping column that can slide therein is provided in the second positioning hole, a movable hole that penetrates up and down is provided on the second clamping column at a position corresponding to the rectangular hole, the upper end of the rotating rod passes through the movable hole, and a second clamping head matching the inclined surface of the boss is provided at one end of the second clamping column facing the repairer main body, a second horizontal through hole that can accommodate the movement of the second clamping head is provided at a position corresponding to the second clamping head on the repairer main body, a horizontal second clamping column through hole is provided on the second clamping column at a position corresponding to the movable hole, a waist-shaped hole horizontally connected to the second positioning hole is provided at a position corresponding to the second clamping column through hole on one side of the positioning device housing, a rotating rod through hole is provided on the rotating rod at a position corresponding to the second clamping column through hole, a function switching rod is provided on one side of the waist-shaped hole of the positioning device housing, one end of the function switching rod passes through the waist-shaped hole, the second clamping column through hole and the rotating rod through hole to connect the second clamping column and the rotating rod together, and a second positioning spring is provided on the second clamping head to apply a force in a direction away from the repairer main body to the second clamping head. The withdrawal length of the bone needle can be effectively controlled. It can be withdrawn section by section or all at once. It is easy to operate and highly practical.

[0007] Furthermore, the main body of the repair device is provided with a plurality of vertical through slots, and the transmission column is provided with a limit column with one end located in the through slot at a horizontal position corresponding to the through slot, so as to prevent the bone needle from rotating during the movement.

[0008] Furthermore, the main body of the repairer is provided with a sight, which includes a support frame, a positioning needle sleeve and a positioning needle, one end of the support frame is fixed on the main body of the repairer, the positioning needle sleeve is fixed on the other end of the support frame, the positioning needle is located in the positioning needle sleeve, the lower end of the positioning needle protruding from the positioning needle sleeve is coplanar with the curved part of the lower end of the bone needle and is located at a point on the curved motion path of the tip. Determine the point on the bone needle where the tip passes through, and bring the suture to the preset position with the thread mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view of the present invention;

[0010] Figure 2 The partial front view of the repairer body with the interior and the positioning device removed;

[0011] Figure 3 is a front view of the positioning device;

[0012] Figure 4 is a cross-sectional view of the positioning device;

[0013] Figure 5 This is the front view of the positioning device after removing the positioning device housing.

[0014] Marked in the figure are: repair device body 100, transmission column 110, boss 111, reset mechanism 120, positioning device 130, first clamping column 131, rotating rod 132, first positioning spring 133, positioning device housing 134, first positioning hole 135, rectangular hole 136, first rotating shaft 137, first clamping head 138, rotating rod through hole 139, pushing column 140, second positioning hole 151, second clamping column 152, movable hole 153, second clamping head 154, waist-shaped hole 156, second positioning spring 157, through groove 160, limiting column 170, function switching rod 180, sleeve 200, bone needle 300, tip 311, wire mouth 312, support frame 410, positioning needle sleeve 420, positioning needle 430. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 and Figure 2The rotator cuff repair device shown in the figure includes a repair device body 100, a sleeve 200 and a bone needle 300. The sleeve 200 is arranged at the lower end of the repair device body 100, and the bone needle 300 is arranged in the sleeve 200. A driving structure for driving the bone needle 300 to slide in the cavity of the sleeve 200 is arranged inside the repair device body 100. The puncture part of the lower end of the bone needle 300 protruding outside the sleeve 200 is in a predetermined curved shape. The end of the bone needle 300 is provided with a tip 311 and a thread port 312 for driving the suture. The driving structure includes a transmission cylinder 110, a reset mechanism 120 and a positioning device 130. The transmission cylinder 110 is located in the repairer body 100 and is connected to the upper end of the bone needle 300 at the lower end and can move downward freely under force. The reset mechanism 120 is located in the repairer body 100 and can drive the transmission cylinder 110 to move upward in the repairer body 100. The positioning device 130 is located on the repairer body 100 and is provided with a function of positioning the up and down movement of the transmission cylinder 110. The reset mechanism 120 is a spring, or other hollow elastic device. The bone needle 300 is made of a superelastic shape memory material, such as nickel-titanium alloy, etc. The bone needle 300 has a specific memory shape of the alloy. After the bone needle 300 leaves the sleeve 200, the terminal part protruding from the sleeve 200 always presents a predetermined curve shape. When in use, the transmission column 110 is manually tapped to apply a downward force to the transmission column 110, and the transmission column 110 moves downward to drive the bone needle 300 to slide in the sleeve 200. After sliding out of the sleeve 200, the tip 311 of the bone needle 300 moves in a curve through the bone suture, and the thread opening 312 moves to a preset position with the suture. At this time, the transmission column 110 compresses the reset mechanism 120, and the reset mechanism 120 applies an upward force to the transmission column 110. When withdrawing the bone needle 300, it is only necessary to turn on the positioning device 130 switch. The transmission column 110 is driven by the upward force of the reset mechanism 120. Move upward, driving the bone needle 300 to move up and out of the bone joint and back into the sleeve 200. In the process of moving the bone needle 300 downward, one hand holds the repairer body 100, and the other hand directly uses a small hammer to knock the connecting piece on the transmission column 110 to gradually puncture the bone needle 300 to the preset position; when retracting the bone needle 300, only the positioning device 130 needs to be operated, and the transmission column 110 can move upward under the drive of the reset mechanism 120 to drive the bone needle 300 to disengage. When using the bone needle 300 for puncture and withdrawal, it can be operated by one person, which is simple to operate and highly practical.

[0017] On the basis of the above, if Figures 1 to 5As shown, a cylindrical cavity is provided in the repair device body 100, the transmission cylinder 110 is located in the cylindrical cavity and can move coaxially, the reset mechanism 120 is located at the lower end of the transmission cylinder 110 in the cylindrical cavity, the upper and lower ends of the repair device body 100 are respectively provided with an upper through hole and a lower through hole connected to the cylindrical cavity, a push column 140 that can move along the upper through hole is provided in the upper through hole, the sleeve 200 is provided at the lower end of the repair device body 100, and the upper end of the bone needle 300 is passed through The lower through hole and the reset mechanism 120 are connected to the lower center of the transmission cylinder 110. The outer cylindrical surface of the transmission cylinder 110 is provided with a multi-step surrounding convex boss 111. The boss 111 is a boss in the shape of a right triangle with the hypotenuse obliquely upward from the outer cylindrical surface of the transmission cylinder 110. The positioning device 130 includes a first clamping column 131, a positioning rotating rod 132, a first positioning spring 133 and a positioning device housing 134. The positioning device housing 134 is arranged near the side of the repairer body 100. The first positioning hole 135 is horizontally provided, the first clamping column 131 is located at the side of the first positioning hole 135 close to the repair device body 100, the first positioning spring 133 is located in the first positioning hole 135 away from the repair device body 100 and applies an elastic force to the first clamping column 131 toward the repair device body 100, the upper surface of the positioning device housing 134 is provided with a rectangular hole 136 vertically connected to the first positioning hole 135, and the middle part of the rotating rod 132 is provided with a plurality of holes for rotating and fixing it in the rectangular hole 135. 6, the lower end of the rotating rod 132 is rotatably connected with the end of the first clamping column 131 close to the first positioning spring 133, the upper end of the rotating rod 132 protrudes from the rectangular hole 136 and is located above the positioning device housing 134, the first clamping column 131 is provided with a first clamping head 138 matching the inclined surface of the boss 111 at the end facing the repairer body 100, and the repairer body 100 is provided with a first horizontal through hole corresponding to the first clamping head 138 to accommodate the movement of the first clamping head 138. The repairer body 100 is composed of two ends and can be separated from the middle, which is convenient for cleaning and maintenance operations.Initially, the first positioning spring 133 applies a force to the first clamping column 131 toward the transmission column 110, so that the first clamping head 138 is clamped on the boss 111 of the transmission column 110. When the tip 311 on the bone needle 300 is passed through the bone suture with the thread opening 312 to bring the suture to the corresponding position, the upper end of the push column 140 is knocked with a small hammer, and the push column 140 slides in the upper through hole of the cylindrical cavity to apply a downward force to the transmission column 110, and the transmission column 110 moves downward, and the convex portion on the transmission column 110 is moved downward. The inclined surface on the platform 111 applies pressure to the inclined surface on the first clamping head 138, and the first clamping column 131 moves into the first positioning hole 135. The first clamping column 131 compresses the first positioning spring 133, and the first clamping head 138 leaves the boss 111 on the transmission column 110. After the transmission column 110 moves downward, the first positioning spring 133 applies a force to the first clamping column 131 toward the transmission column 110, so that the first clamping head 138 continues to be clamped on the boss 111 of the next layer or layers of the transmission column 110, and resets After the mechanism 120 is compressed, an upward force is applied to the transmission column 110, but the boss 111 on the transmission column 110 is clamped by the first clamp head 138 of the first clamp column 131, and the transmission column 110 is fixed in the vertical direction. The transmission column 110 can be gradually moved down by holding the repair device body 100 and knocking the push column 140, so that the bone needle 300 slides down in the sleeve 200, and the tip 311 on the bone needle 300 passes through the bone suture and brings the suture to the preset position with the thread mouth 312. A person can simply realize the operation of penetrating the bone suture with the bone needle 300. When the bone needle 300 needs to be withdrawn, the upper end of the rotating rod 132 is pressed inwardly, and the rotating rod 132 rotates around the first rotating shaft 137. The lower end of the rotating rod 132 drives the first clamping column 131 to move away from the transmission column 110, and the first clamping head 138 leaves the boss 111. After the reset mechanism 120 is compressed, it applies an upward force to the transmission column 110 to drive the transmission column 110 to move upward, driving the bone needle 300 to move upward and leave the bone suture. The bone needle 300 can be punctured by knocking the push column 140, and the bone needle 300 can be withdrawn by toggling the rotating rod 132.

[0018] On the basis of the above, if Figures 1 to 5As shown, a second positioning hole 151 is provided at a corresponding position above the first positioning hole 135 on the positioning device housing 134, a second clamping column 152 that can slide therein is provided in the second positioning hole 151, a movable hole 153 that penetrates up and down is provided on the second clamping column 152 at a position corresponding to the rectangular hole 136, the upper end of the rotating rod 132 passes through the movable hole 153, and a second clamping head 154 that matches the inclined surface of the boss 111 is provided at one end of the second clamping column 152 facing the repairer body 100, a second horizontal through hole that can accommodate the movement of the second clamping head 154 is provided on the repairer body 100 at a position corresponding to the second clamping head 154, and the second clamping column 152 corresponds to the movable hole 153. A horizontal second clamping column through hole is arranged at the position, a waist-shaped hole 156 horizontally connected to the second positioning hole 151 is arranged on one side of the positioning device shell 134 at a position corresponding to the second clamping column through hole, a rotating rod through hole 139 is arranged on the rotating rod 132 at a position corresponding to the second clamping column through hole, a function switching rod 180 is arranged on one side of the waist-shaped hole 156 of the positioning device shell 134, one end of the function switching rod 180 passes through the waist-shaped hole 156, the second clamping column through hole and the rotating rod through hole 139 to connect the second clamping column 152 and the rotating rod 132 together, and a second positioning spring 157 is sleeved on the second clamping head 154 to apply a force in a direction away from the repairer body 100 to the second clamping head 154.When the second clamping column 152 and the rotating rod 132 are not connected together by one end of the function switching rod 180, the second positioning spring 157 presses the second clamping column 152 away from the transmission column 110. When the rotating rod 132 is rotated or the upper end of the rotating rod 132 is pushed by the first clamping column 131, the movement of the rotating rod 132 in the movable hole 153 will not drive the movement of the second clamping column 152. At this time, the upper end of the rotating rod 132 is pushed toward the transmission column 110 by hand, and the first clamping column 131 moves away from the transmission column 110 in the first positioning hole 135, and the first clamping head 138 leaves the boss 111, which is not correct. The transmission column 110 is limited, and the second clamping column 152 is also pressed away from the transmission column 110 in the second positioning hole 151 by the second positioning spring 157. The second clamping head 154 does not contact the boss 111, and the second clamping column 152 does not limit the transmission column 110. That is, when the second clamping column 152 and the rotating rod 132 are not connected together by one end of the function switching rod 180, the upper end of the rotating rod 132 can be manually moved toward the transmission column 110 to drive the bone needle 300 to retreat to the sleeve 200 once under the drive of the reset mechanism 120; the end of the function switching rod 180 is used to When the second clamping column 152 and the rotating rod 132 are connected together, the second clamping column 152 moves with the rotating rod 132, and the first clamping column 131 and the second clamping column 152 are respectively located on both sides of the first rotating shaft 137 of the rotating rod 132. That is, when the rotating rod 132 rotates, the first clamping column 131 and the second clamping column 152 move in opposite directions respectively. At this time, the upper end of the rotating rod 132 is moved in the direction of the transmission column 110 by hand, and the first clamping column 131 moves away from the transmission column 110 in the first positioning hole 135, and the first clamping head 138 leaves the boss 111, and the transmission column 110 is not limited. When the body 110 drives the bone needle 300 to retreat to the sleeve 200 under the drive of the reset mechanism 120, the second clamping column 152 is driven by the rotating rod 132 to move toward the transmission cylinder 110 in the second positioning hole 151, and the second clamping head 154 contacts the boss 111 to limit the transmission cylinder 110, that is, when the second clamping column 152 and the rotating rod 132 are connected together by one end of the function switching rod 180, each time the upper end of the rotating rod 132 is manually moved toward the transmission cylinder 110, the transmission cylinder 110 can only drive the bone needle 300 to retreat a small section of the sleeve 200 under the drive of the reset mechanism 120. The withdrawal length of the bone needle 300 can be effectively controlled, and it can be withdrawn section by section or all at once, which is simple to operate and highly practical.

[0019] On the basis of the above, if Figure 1 As shown, the repair device body 100 is provided with a plurality of vertical through slots 160, and the transmission column 110 is horizontally provided with a stopper 170 at a position corresponding to the through slots 160, so as to prevent the bone needle 300 from rotating during the movement.

[0020] On the basis of the above, if Figure 1 As shown, the repair device body 100 is provided with a sight, and the sight includes a support frame 410, a positioning needle sleeve 420 and a positioning needle 430. One end of the support frame 410 is fixed on the repair device body 100, and the positioning needle sleeve 420 is fixed on the other end of the support frame 410. The positioning needle 430 is located in the positioning needle sleeve 420. The lower end of the positioning needle 430 protrudes from the positioning needle sleeve 420 and is coplanar with the lower curved part of the bone needle 300 and is located at a point on the curved motion path of the tip 311. Determine the point where the tip 311 on the bone needle 300 passes through, and use the thread port 312 to bring the suture to the preset position.

[0021] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotator cuff repair device, characterized in that: The invention comprises a repair device body (100), a sleeve (200) and a bone needle (300), wherein the sleeve (200) is arranged at the lower end of the repair device body (100), the bone needle (300) is arranged in the sleeve (200), a driving structure for driving the bone needle (300) to slide in the cavity of the sleeve (200) is arranged inside the repair device body (100), a puncture portion of the lower end of the bone needle (300) protruding outside the sleeve (200) is in a predetermined curved shape, the end of the bone needle (300) is provided with a tip (311) and a thread port (312) for driving a suture, and the driving structure The structure comprises a transmission column (110), a reset mechanism (120) and a positioning device (130); the transmission column (110) is located in the repair device body (100), the lower end of which is connected to the upper end of the bone needle (300) and can freely move downward under force; the reset mechanism (120) is located in the repair device body (100) at the lower end of the transmission column (110) and can drive the transmission column (110) to move upward in the repair device body (100); and the positioning device (130) is located on the repair device body (100) and is provided with a function of positioning the transmission column (110) when it moves up and down; A cylindrical cavity is provided in the repair device body (100), the transmission cylinder (110) is located in the cylindrical cavity and can move coaxially, the reset mechanism (120) is located at the lower end of the transmission cylinder (110) in the cylindrical cavity, the upper and lower ends of the repair device body (100) are respectively provided with an upper through hole and a lower through hole connected to the cylindrical cavity, a pushing column (140) is provided in the upper through hole and can move along the upper through hole, the upper end of the bone needle (300) passes through the lower through hole and the reset mechanism (120) and the lower end center of the transmission cylinder (110). The transmission cylinder (110) is connected to the transmission cylinder (110) at a position, and a multi-step surrounding convex boss (111) is provided on the outer cylindrical surface of the transmission cylinder (110), and the boss (111) is a boss in the shape of a right triangle with a hypotenuse extending upward from the outer cylindrical surface of the transmission cylinder (110). The positioning device (130) also includes a first clamping column (131), a positioning rotating rod (132), a first positioning spring (133) and a positioning device housing (134). The positioning device housing (134) is provided with a horizontal first positioning hole (135) on a side close to the repair device body (100). The first clamping column (131) is provided with a first positioning hole (135) on a side close to the repair device body (100). The column (131) is located on a side of the first positioning hole (135) close to the repair device body (100), the first positioning spring (133) is located in the first positioning hole (135) away from the repair device body (100) and applies an elastic force to the first clamping column (131) toward the repair device body (100), the upper surface of the positioning device housing (134) is provided with a rectangular hole (136) vertically connected to the first positioning hole (135), and the middle part of the rotating rod (132) is provided with a first rotating shaft (136) for rotating and fixing it in the rectangular hole (136). 37), the lower end of the rotating rod (132) is rotatably connected to one end of the first clamping column (131) close to the first positioning spring (133), the upper end of the rotating rod (132) protrudes from the rectangular hole (136) and is located above the positioning device housing (134), the first clamping column (131) is provided with a first clamping head (138) matching the inclined surface of the boss (111) at one end facing the repairer body (100), and the repairer body (100) is provided with a first horizontal through hole that can accommodate the movement of the first clamping head (138) at a position corresponding to the first clamping head (138); A second positioning hole (151) is provided at a position corresponding to the first positioning hole (135) on the positioning device housing (134); a second clamping column (152) capable of sliding therein is provided in the second positioning hole (151); a movable hole (153) penetrating from top to bottom is provided on the second clamping column (152) at a position corresponding to the rectangular hole (136); the upper end of the rotating rod (132) passes through the movable hole (153); a second clamping head (154) matching the inclined surface of the boss (111) is provided at one end of the second clamping column (152) facing the repairer body (100); a second horizontal through hole capable of accommodating the movement of the second clamping head (154) is provided at a position corresponding to the second clamping head (154) on the repairer body (100); and a second clamping head (154) corresponding to the movable hole (153) is provided on the second clamping column (152). A second clamping column through hole is horizontally arranged at a position, a waist-shaped hole (156) horizontally connected to the second positioning hole (151) is arranged on one side of the positioning device housing (134) at a position corresponding to the second clamping column through hole, a rotating rod through hole (139) is arranged on the rotating rod (132) at a position corresponding to the second clamping column through hole, a function switching rod (180) is arranged on one side of the waist-shaped hole (156) of the positioning device housing (134), one end of the function switching rod (180) passes through the waist-shaped hole (156), the second clamping column through hole and the rotating rod through hole (139) to connect the second clamping column (152) and the rotating rod (132) together, and a second positioning spring (157) is sleeved on the second clamping head (154) to apply a force in a direction away from the repairer body (100) to the second clamping head (154); The reset mechanism (120) is a spring.

2. A rotator cuff repair device according to claim 1, characterized in that: The repair device body (100) is provided with a plurality of vertical through slots (160), and a limiting column (170) with one end located in the through slot (160) is horizontally provided on the transmission column (110) at a position corresponding to the through slot (160).

3. A rotator cuff repair device according to claim 2, characterized in that: The repair device body (100) is provided with an aimer, and the aimer includes a support frame (410), a positioning needle sleeve (420) and a positioning needle (430). One end of the support frame (410) is fixed on the repair device body (100), and the positioning needle sleeve (420) is fixed on the other end of the support frame (410). The positioning needle (430) is located in the positioning needle sleeve (420). The lower end of the positioning needle (430) protrudes from the positioning needle sleeve (420) and is coplanar with the lower curved portion of the bone needle (300) and abuts against a point on the movement path of the lower curved portion of the bone needle (300).

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