Sighting device capable of drilling angular bone tunnel

Abstract

The utility model relates to a sighting device capable of drilling an angle bone tunnel. The sighting device comprises a handle, a sliding handle, a handle accessory and a sliding handle accessory. The handle is provided with an arc-shaped handle arm, and an arc-shaped sliding groove is formed in the handle arm. The sliding handle is provided with an arc-shaped sliding handle arm, the sliding handle arm is installed in the arc-shaped sliding groove in a sliding mode, and the sliding handle arm and the handle arm share the same circle center. The handle accessory is provided with a plurality of groups of protective baffles and depth-limiting hollow drills with matched sizes; the sliding handle accessory is provided with a guider, a depth-limiting drill and a depth-limiting flat head drill; wherein the end portion of the guider and the end portion of the protection baffle can make contact at the circle center and can rotate around the circle center, and the guider and the protection baffle can form a channel for a guide wire to penetrate through. The sliding handle arm and the handle arm are fixed through the locking piece, so that angle adjustment of the guider and the protection baffle is achieved. According to the bone tunnel threading device, an angle bone tunnel threading can be drilled at a proper position on a bone, so that a doctor can select a proper angle for drilling more conveniently during an operation.

Description

Technical Field

[0001] The present application belongs to the technical field of orthopedic medical devices, and specifically relates to a sight capable of drilling angled bone tunnels. Background Art

[0002] In anterior and posterior cruciate ligament reconstruction surgery, drilling the tibial tunnel is a very important part of the operation. Using a tibial aimer when drilling the tibial tunnel has become a common method both internationally and domestically. The operation is simple, effective, and has been recognized.

[0003] There are many types of aimers currently, the commonly used ones are point-to-point aimers, point-to-elbow aimers, etc. The shapes and sizes of aimers from different manufacturers are different, but most of the aimers can only drill in one direction in one plane, and the bone channels drilled are linear bone channels. Doctors need to choose the appropriate position to drill during surgery. Drilling only non-linear bone channels will not be able to avoid some important nerves and joint surfaces, affecting the treatment effect. Utility Model Content

[0004] In view of the above analysis, the embodiment of the utility model aims to provide a sighting device capable of drilling an angled bone tunnel, so as to solve the above problems existing in the prior art.

[0005] The purpose of the utility model is achieved in this way:

[0006] A sight capable of drilling an angled bone tunnel, comprising:

[0007] A handle, wherein the handle has an arc-shaped handle arm, and an arc-shaped slide groove is provided on the handle arm;

[0008] A sliding handle, wherein the sliding handle has an arc-shaped sliding handle arm, the sliding handle arm is slidably installed in the arc-shaped sliding groove, and has a common center with the handle arm;

[0009] A handle accessory, the handle accessory having a plurality of sets of protective baffles and depth-limiting hollow drills of matching sizes; the protective baffles and depth-limiting hollow drills can be detachably mounted on the first end of the handle arm respectively;

[0010] A sliding handle accessory, the sliding handle accessory has a guide, a depth limit drill and a depth limit flat head drill; the guide, the depth limit drill and the depth limit flat head drill can be removed and installed on the first end of the sliding handle arm respectively; wherein the end of the guide and the end of the protective baffle can contact at the center of the circle and can rotate around the center of the circle, and the guide and the protective baffle can form a channel for the guide wire to pass through; the sliding handle arm and the handle arm are fixed by a locking piece to achieve angle adjustment of the guide and the protective baffle.

[0011] Furthermore, a mounting hole 1 is provided at the first end of the handle arm, and the protective baffle and the depth-limiting hollow drill can be installed in the mounting hole 1, and a locking screw 1 is used to fix the protective baffle and the depth-limiting hollow drill in the mounting hole 1.

[0012] Furthermore, the locking member is a second locking screw, and the handle arm is provided with a locking threaded hole penetrating the bottom of the arc-shaped sliding groove, and the locking threaded hole is adapted to the second locking screw.

[0013] Furthermore, a second mounting hole is provided at the first end of the sliding handle arm, and the guide, the depth-limiting drill or the depth-limiting flat-head drill can be installed in the second mounting hole and fixed by a third locking screw.

[0014] Furthermore, the ends of the locking screw 1, the locking screw 2 and the locking screw 3 are all provided with a screwing operation part, and the screwing operation part is provided with an anti-slip thread.

[0015] Furthermore, the handle arm is also provided with an observation hole which passes through the bottom of the arc-shaped slide groove; the second end of the sliding handle arm is inserted into the arc-shaped slide groove by the second end of the handle arm, and the position of the sliding handle arm in the arc-shaped slide groove of the sliding handle arm can be determined through the observation hole.

[0016] Furthermore, there are multiple observation holes, and the multiple observation holes are evenly arranged in the arc-shaped slide groove.

[0017] Furthermore, an abutting portion is provided at the end of the guide, and the abutting portion has an outer arc surface. An abutting matching portion is provided at the end of the protective baffle, and the abutting matching portion has an inner arc surface.

[0018] Furthermore, the arc-shaped sliding groove is a dovetail groove, and the sliding handle arm can be inserted into the dovetail groove and slide along an arc-shaped trajectory in the dovetail groove.

[0019] Furthermore, the outer diameter of the protective baffle has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm; correspondingly, the outer diameter of the depth-limiting hollow drill has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm.

[0020] Furthermore, the size of the guide, the depth limiting drill and the depth limiting flat head drill is 3.5 mm.

[0021] Compared with the prior art, the aimer for drilling an angled bone channel provided by the utility model has a handle and a sliding handle that can slide relative to each other, so that the end of the guide and the end of the protective baffle can contact at the center of a circle and can rotate around the center of a circle. After the handle, the sliding handle and the protective baffle are assembled and adjusted to the planned angle, the guide and the protective baffle can form a channel for the guide wire to pass through, thereby protecting the bone channel from secondary damage. The utility model can select a suitable position on the bone to drill an angled bone channel, making it more convenient for doctors to select a suitable position to drill an angled bone channel during surgery. The drilled angled bone channel is non-linear, such as V-shaped. By drilling the angled bone channel, some important nerves and joint surfaces can be avoided. A matching guide can also be used to pass a guide wire or suture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the structure of the aiming device capable of drilling an angled bone channel provided by the utility model;

[0024] Figure 2 A disassembled schematic diagram of a sight capable of drilling an angled bone channel provided by the utility model;

[0025] Figure 3 Schematic diagram of the use of the aiming device for drilling angled bone tunnels provided by the utility model Figure 1 ;

[0026] Figure 4 Schematic diagram of the use of the aiming device for drilling angled bone tunnels provided by the utility model Figure 2 ;

[0027] Figure 5 A schematic diagram of the structure of the handle of the sighting device capable of drilling an angled bone tunnel provided by the utility model;

[0028] Figure 6 A schematic diagram of the structure of a sliding handle of a sighting device capable of drilling an angled bone tunnel provided by the utility model;

[0029] Figure 7 A partial cross-sectional schematic diagram of a sighting device capable of drilling an angled bone channel provided by the utility model;

[0030] Figure 8 A schematic diagram of the partial structure of the protective baffle of the aiming device capable of drilling an angled bone channel provided by the utility model;

[0031] Fig. 9 A schematic diagram of the partial structure of the guide of the aiming device capable of drilling an angled bone channel provided by the utility model;

[0032] Fig.10 The utility model provides a structural schematic diagram of a guide wire drill with a sight capable of drilling an angled bone tunnel.

[0033] Reference numerals:

[0034] 100, handle; 101, handle arm; 102, locking screw 1; 103, locking screw 2; 104, locking threaded hole; 105, observation hole; 106, arc-shaped slide groove;

[0035] 200, sliding handle;

[0036] 201, sliding handle arm; 202, locking screw three; 203, arc groove;

[0037] 300, handle accessories; 301, 7mm protective baffle; 302, 6.5mm protective baffle; 303, 6mm protective baffle; 304, 5.5mm protective baffle; 305, 5mm protective baffle; 306, 7mm depth-limited hollow drill; 307, 6.5mm depth-limited hollow drill; 308, 6mm depth-limited hollow drill; 309, 5.5mm depth-limited hollow drill; 310, 5mm depth-limited hollow drill; 311, abutment and matching part;

[0038] 400, sliding handle accessory; 401, guide; 402, depth-limiting drill; 403, depth-limiting flat head drill; 404, abutment portion;

[0039] 500, guide wire drill; 501, drill tip; 502, drill rod; 503, drill tail; 5031, open slot. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that, in the absence of conflict, the embodiments in the present disclosure and the features in the embodiments can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] In the accompanying drawings, the size and relative size of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, the specific process sequence may be performed in a sequence different from that described. In addition, the same reference numerals represent the same components.

[0042] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0043] Example 1

[0044] A specific embodiment of the utility model is as follows Figures 1 to 9 As shown, a sight capable of drilling an angled bone tunnel is disclosed, comprising:

[0045] A handle 100, wherein the handle 100 has an arc-shaped handle arm 101, and an arc-shaped slide groove 106 is provided on the handle arm 101;

[0046] The sliding handle 200 has an arc-shaped sliding handle arm 201. The sliding handle arm 201 is slidably installed in the arc-shaped sliding groove 106 and has a common center with the handle arm 101. It can also be understood that the handle arm 101 and the sliding handle arm 201 are two concentric arcs;

[0047] A handle accessory 300, wherein the handle accessory 300 has a plurality of sets of protective baffles and depth-limiting hollow drills of matching sizes; the protective baffles and depth-limiting hollow drills can be detachably mounted on the first end of the handle arm 101 respectively;

[0048] A sliding handle accessory 400, wherein the sliding handle accessory 400 comprises a guide 401, a depth limiting drill 402 and a depth limiting flat head drill 403; the guide 401, the depth limiting drill 402 and the depth limiting flat head drill 403 can be respectively detached and installed on the first end of the sliding handle arm 201, the depth limiting drill 402 is used for drilling the bone canal, and the depth limiting flat head drill 403 is used for cleaning the bone canal after the depth limiting drill 402 has drilled a hole; wherein, the end of the guide 401 and the end of the protective baffle can contact at the center of a circle and can rotate around the center of a circle, the guide 401 and the protective baffle are both hollow structures, the guide 401 and the protective baffle can form a channel for the guide wire to pass through, and protect the bone canal from secondary damage; the sliding handle arm 201 and the handle arm 101 are fixed by a locking member to achieve angle adjustment of the guide 401 and the protective baffle.

[0049] In this embodiment, the first end of the handle arm 101 is provided with a mounting hole 1, the protective baffle and the depth-limiting hollow drill can be installed in the mounting hole 1, and the protective baffle and the depth-limiting hollow drill are fixed in the mounting hole 1 by a locking screw 102. A threaded hole 1 is also provided on the side wall of the first end of the handle arm 101, the threaded hole 1 is vertically connected to the mounting hole 1, and the locking screw 102 is screwed into the threaded hole 1 to tighten the protective baffle or the depth-limiting hollow drill in the mounting hole 1.

[0050] In one optional embodiment, the locking member is a locking screw rod 103, and the handle arm 101 is provided with a locking threaded hole 104 that passes through the bottom of the arc-shaped slide groove 106, and the locking threaded hole 104 is adapted to the locking screw rod 103, and the sliding handle arm 201 is fixed to the handle arm 101 by the locking nut 103. Optionally, the sliding handle arm 201 is provided with an arc-shaped groove 203, and the arc-shaped groove 203 is parallel to the arc-shaped slide groove 106, and the top end of the locking screw rod 103 can be against the arc-shaped groove 203.

[0051] In this embodiment, the first end of the sliding handle arm 201 is provided with a second mounting hole, and the guide 401, the depth limit drill 402 or the depth limit flat head drill 403 can be installed in the second mounting hole and fixed by a locking screw 3 202. A second threaded hole is also provided on the side wall of the first end of the sliding handle arm 201, and the second threaded hole is vertically connected to the second mounting hole. The locking screw 3 202 is screwed into the second threaded hole to tighten the guide 401, the depth limit drill 402 or the depth limit flat head drill 403 in the second mounting hole.

[0052] In one of the optional implementations, the ends of the locking screw 1 102 , the locking screw 2 103 and the locking screw 3 202 are all provided with a screwing operation portion, and the screwing operation portion is provided with an anti-slip thread.

[0053] In one of the optional embodiments, the handle arm 101 is also provided with an observation hole 105 that passes through the bottom of the arc-shaped slide groove 106, the locking threaded hole 104 is close to the second end of the handle arm 101, and the observation hole 105 is between the locking threaded hole and the first end of the handle arm 101; the second end of the sliding handle arm 201 is inserted into the arc-shaped slide groove 106 by the second end of the handle arm 101, and the position of the sliding handle arm 201 in the arc-shaped slide groove 106 of the sliding handle arm 201 can be determined through the observation hole 105.

[0054] Furthermore, there are multiple observation holes, and the multiple observation holes are evenly arranged in the arc-shaped slide groove 106.

[0055] In one of the optional embodiments, the end of the guide 401 is provided with an abutment portion 404, and the abutment portion 404 has an outer arc surface. The end of the protective baffle is provided with an abutment matching portion 311, and the abutment matching portion 311 has an inner arc surface.

[0056] In one of the optional embodiments, the arc-shaped slide groove 106 is a dovetail groove, and the sliding handle arm 201 can be inserted into the dovetail groove and slide along an arc-shaped trajectory in the dovetail groove. In other words, the arc-shaped slide groove 106 is in the shape of a dovetail groove, and the cross section is approximately trapezoidal. The outer shape of the sliding handle arm 201 is adapted to the dovetail groove and can be inserted into the dovetail groove. Under the limitation of the dovetail groove, the sliding handle arm 201 can be inserted into the dovetail groove and can only move along an arc-shaped trajectory.

[0057] In this embodiment, the outer diameter of the protective baffle has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm; correspondingly, the outer diameter of the depth-limiting hollow drill has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm. Figure 2 Five sets of sizes of protective baffles and depth-limiting hollow drills are shown, specifically: 7mm protective baffle 301 and 7mm depth-limiting hollow drill 306, 6.5mm protective baffle 302 and 6.5mm depth-limiting hollow drill 307, 6mm protective baffle 303 and 6mm depth-limiting hollow drill 308, 5.5mm protective baffle 304 and 5.5mm depth-limiting hollow drill 309, 5mm protective baffle 305 and 5mm depth-limiting hollow drill 310.

[0058] In this embodiment, the sizes of the guide 401, the depth limiting drill 402 and the depth limiting flat head drill 403 are 3.5 mm.

[0059] In this embodiment, the accessories of the aiming device capable of drilling an angled bone tunnel also include a guide wire drill 500. Fig.10As shown, the guide wire drill 500 includes a drill rod 502, the front end of the drill rod 502 is provided with a drill tip 501, the rear end of the drill rod 502 is provided with a drill tail 503, and the drill tail 503 is provided with an open groove 5031, and the open groove 5031 is used for hanging a wire. The drill rod 502 is a cylindrical rod, and the diameter of the drill rod 502 is 2.4 mm. During implementation, a suitable position is selected on the bone, and after drilling a bone channel with a guide wire drill, the wire is directly hung in the open groove 5031 at the rear end, the suture is guided through the bone channel, and the open titanium plates are hung at both ends to complete the repair operation.

[0060] The operation process of using the aiming device capable of drilling an angled bone tunnel of the present embodiment is as follows:

[0061] After drilling to the predetermined depth using the guide wire drill 500 with a diameter of 2.4 mm, use a suitable depth-limiting hollow drill to drill along the guide wire drill, remove the depth-limiting hollow drill, and retain the guide wire drill. According to the preoperative plan, select a protective baffle with appropriate size parameters, assemble the handle 100, the sliding handle 200, and the protective baffle, and adjust them to the planned angle. Use the locking nut 103 to fix the sliding handle arm 201 to the handle arm 101, and place the protective guide plate into the bone channel along the guide wire drill. Use the depth-limiting drill 402 and the depth-limiting flat-head drill 403 to drill holes in turn. Insert the guide 401 along the bone channel drilled by the depth-limiting flat-head drill 403. Pass the guide wire and suture through the channel formed by the guide 401 and the protective baffle.

[0062] Compared with the prior art, the aimer for drilling an angled bone channel provided in the present embodiment is provided with a handle and a sliding handle which can slide relative to each other, and the end of the guide and the end of the protective baffle can contact at the center of a circle and can rotate around the center of a circle. After the handle, the sliding handle and the protective baffle are assembled and adjusted to the planned angle, the guide and the protective baffle can form a channel for the guide wire to pass through, thereby protecting the bone channel from secondary damage. The utility model can select a suitable position on the bone to drill an angled bone channel through the line, making it more convenient for the doctor to select a suitable position to drill an angled bone channel during surgery. The drilled angled bone channel is non-linear, such as a V-shape. By drilling the angled bone channel, some important nerves and joint surfaces can be avoided. A matching guide can also be used to pass the guide wire and suture.

[0063] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above description is only the specific implementation method of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A sight capable of drilling an angled bone tunnel, characterized in that: include: A handle (100), wherein the handle (100) has an arc-shaped handle arm (101), and an arc-shaped slide groove (106) is provided on the handle arm (101); A sliding handle (200), wherein the sliding handle (200) has an arc-shaped sliding handle arm (201), and the sliding handle arm (201) is slidably installed in the arc-shaped sliding groove (106) and has a common center with the handle arm (101); A handle accessory (300), the handle accessory (300) having a plurality of sets of protective baffles and depth-limiting hollow drills of matching sizes; the protective baffles and depth-limiting hollow drills can be detachably mounted on the first end of the handle arm (101); A sliding handle accessory (400), wherein the sliding handle accessory (400) comprises a guide (401), a depth limiting drill (402) and a depth limiting flat head drill (403); the guide (401), the depth limiting drill (402) and the depth limiting flat head drill (403) can be respectively detached and installed on the first end of the sliding handle arm (201); wherein the end of the guide (401) and the end of the protective baffle can contact at the center of a circle and can rotate around the center of a circle, and the guide (401) and the protective baffle can form a channel for a guide wire to pass through; the sliding handle arm (201) and the handle arm (101) are fixed by a locking member to achieve angle adjustment of the guide (401) and the protective baffle.

2. The aiming device for drilling angled bone tunnels according to claim 1, characterized in that: The first end of the handle arm (101) is provided with a mounting hole 1, the protective baffle and the depth-limiting hollow drill can be installed in the mounting hole 1, and a locking screw 1 (102) is used to fix the protective baffle and the depth-limiting hollow drill in the mounting hole 1.

3. The aiming device for drilling angled bone tunnels according to claim 2, characterized in that: The locking member is a second locking screw (103), and the handle arm (101) is provided with a locking threaded hole (104) penetrating the bottom of the arc-shaped sliding groove (106), and the locking threaded hole (104) is adapted to the second locking screw (103).

4. The aiming device for drilling angled bone tunnels according to claim 3, characterized in that: The first end of the sliding handle arm (201) is provided with a second mounting hole, and the guide (401), the depth limiting drill (402) or the depth limiting flat head drill (403) can be installed in the second mounting hole and fixed by a locking screw (202).

5. The aiming device for drilling angled bone tunnels according to claim 4, characterized in that: The ends of the locking screw rod 1 (102), the locking screw rod 2 (103) and the locking screw rod 3 (202) are all provided with a screwing operation part, and the screwing operation part is provided with an anti-slip thread.

6. The aiming device for drilling angled bone tunnels according to claim 1, characterized in that: The handle arm (101) is also provided with an observation hole (105) penetrating the bottom of the arc-shaped sliding groove (106); The second end of the sliding handle arm (201) is inserted into the arc-shaped slide groove (106) from the second end of the handle arm (101), and the position of the sliding handle arm (201) in the arc-shaped slide groove (106) of the sliding handle arm (201) can be determined through the observation hole (105).

7. The aiming device for drilling an angled bone tunnel according to claim 6, characterized in that: There are multiple observation holes, and the multiple observation holes are evenly arranged in the arc-shaped sliding groove (106).

8. The aiming device for drilling angled bone tunnels according to claim 1, characterized in that: The end of the guide (401) is provided with an abutment portion (404), and the abutment portion (404) has an outer arc surface. The end of the protective baffle is provided with an abutment matching portion (311), and the abutment matching portion (311) has an inner arc surface.

9. The aiming device for drilling angled bone tunnels according to claim 1, characterized in that: The arc-shaped sliding groove (106) is a dovetail groove, and the sliding handle arm (201) can be inserted into the dovetail groove and slide along an arc-shaped track in the dovetail groove.

10. The aiming device for drilling an angled bone tunnel according to claim 1, characterized in that: The outer diameter of the protective baffle has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm; correspondingly, the depth-limiting hollow drill has five sizes: 7mm, 6.5mm, 6mm, 5.5mm, and 5mm; The size of the guide, the depth limit drill and the depth limit flat head drill is 3.5 mm.

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