Guide wire drill with open slot at tail end and sighting device for tibiofibula surgery

Abstract

The utility model relates to a guide wire drill with an open groove in the tail end and a sighting device for tibiofibula surgeries, the guide wire drill comprises a drill rod, a drill tip and a drill tail, and the drill tip is arranged at the front end of the drill rod; the drill tail is arranged at the tail end of the drill rod, and an open groove is formed in the drill tail and used for hanging a wire. The accessory of the sighting device for the tibiofibula operation comprises a guide wire drill with an open slot at the tail end. After a bone tunnel is drilled, a suture is directly hung in the opening groove in the tail end, the suture is guided to penetrate through the bone tunnel, operation steps can be reduced, and a doctor can complete an operation more quickly.

Description

Technical Field

[0001] The present application belongs to the technical field of orthopedic medical devices, and specifically relates to a guide wire drill with an open groove at the tail end and a sight for tibia and fibula surgery. Background Art

[0002] In the repair of tibiofibular syndesmotic injuries, surgical fixation is the main method for treating tibiofibular syndesmotic injuries. Currently, the commonly used methods in clinical practice include rigid fixation techniques using traditional metal screws or absorbable screws, as well as elastic fixation techniques such as tibiofibular hooks or Suture-buttons. Drilling the tibial tunnel is an important part of the Suture-button elastic fixation technique. The use of a tibial aimer when drilling the tibial tunnel has become a common method both internationally and domestically. There is no significant difference between the biomechanical Suture-button elastic fixation control screws in resisting sagittal and coronal displacement and fibular axis rotation displacement. Elastic fixation has better postoperative recovery and can avoid secondary removal surgery.

[0003] The current surgical method is to drill a hole with a drill bit and then use other instruments to thread sutures and pass titanium plates, such as the AR-8925T instrument from Arthrex. This type of instrument has a relatively large diameter and its threading structure is located at the front end. If a thinner fibula is encountered, the bone canal is easily split due to the large size, making it impossible to complete the repair surgery. Utility Model Content

[0004] In view of the above analysis, the embodiments of the utility model aim to provide a guide wire drill with an open slot at the tail end and a sight for tibia and fibula surgery, 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 guide wire drill with an open groove at the tail end, comprising:

[0007] Drill pipe;

[0008] A drill tip, disposed at the front end of the drill rod;

[0009] The drill tail is arranged at the tail end of the drill rod, and the drill tail is provided with an open groove, and the open groove is used for hanging the wire.

[0010] Furthermore, the drill tail comprises a tail plate, the longitudinal axis of the tail plate coincides with the axis of the drill rod; and the opening groove is arranged on the tail plate.

[0011] Furthermore, the thickness of the tail plate is smaller than the diameter of the drill rod, and the height of the tail plate is equal to the diameter of the drill rod.

[0012] Furthermore, the open groove has a connected groove opening and a groove cavity, and the groove cavity extends from the groove opening toward the end of the drill tail to form a hook-shaped structure.

[0013] Further, the tail plate has two parallel narrow sides in the height direction, the distance between the two narrow sides is equal to the diameter of the drill rod, and the notch is located on one of the narrow sides.

[0014] Furthermore, an inclined guide surface is provided on the narrow side with the notch, and the inclined guide surface is inclined from the tail of the drill rod toward the groove cavity.

[0015] Furthermore, the diameter of the drill rod is 2-3 mm, and scale marks are provided on the drill rod.

[0016] Furthermore, the diameter of the drill rod is 2.4 mm.

[0017] Furthermore, the drill tip is one of a wedge-shaped, conical, and multi-faceted conical structure.

[0018] Furthermore, the drill tip, drill rod and drill tail are integrally formed.

[0019] On the other hand, there is also provided an aiming device for tibia and fibula surgery, comprising the above-mentioned guide wire drill with an open groove at the tail end.

[0020] Compared with the prior art, the guide wire drill with an open groove at the tail end and the sight for tibia and fibula surgery provided by the utility model can select a suitable position on the bone to drill the bone tunnel, directly hang the wire in the open groove at the tail end, guide the suture to pass through the bone tunnel, and hang open titanium plates at both ends. It can also reduce the surgical steps and speed up the doctor's surgical progress. Moreover, the diameter of the guide wire drill is small, and drilling a thinner bone tunnel can avoid bone tunnel splitting. In addition, the sight for tibia and fibula surgery can select a suitable position on the bone to drill the angled bone tunnel through the wire, making it more convenient for the doctor to select a suitable position on the bone to drill the angled bone tunnel during surgery. The drilled angled bone tunnel is non-linear, such as V-shaped. By drilling the angled bone tunnel, some important nerves and joint surfaces can be avoided; a matching guide can also be used to pass the guide wire and suture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is a schematic structural diagram of the guide wire drill with an open groove at the tail end provided in Example 1;

[0023] Figure 2 for Figure 1 A magnified image of area A;

[0024] Figure 3 A schematic structural diagram of the drill tail provided in Example 1 from a first perspective;

[0025] Figure 4 A schematic structural diagram of a drill tail provided in Example 1 from a second viewing angle;

[0026] Figure 5 It is a schematic structural diagram of the aiming device for tibia and fibula surgery provided in Example 2;

[0027] Figure 6 This is a disassembly diagram of the aiming device for tibia and fibula surgery provided in Example 2;

[0028] Figure 7 Schematic diagram of the use of the tibia and fibula surgery aiming device provided in Example 2 Figure 1 ;

[0029] Figure 8 Schematic diagram of the use of the tibia and fibula surgery aiming device provided in Example 2 Figure 2 ;

[0030] Fig. 9 A schematic diagram of the structure of the handle of the aiming device for tibia and fibula surgery provided in Example 2;

[0031] Fig.10 This is a schematic diagram of the structure of the sliding handle of the aiming device for tibia and fibula surgery provided in Example 2.

[0032] Reference numerals:

[0033] 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;

[0034] 200, sliding handle;

[0035] 201, sliding handle arm; 202, locking screw three; 203, arc groove;

[0036] 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 limit hollow drill; 307, 6.5mm depth limit hollow drill; 308, 6mm depth limit hollow drill; 309, 5.5mm depth limit hollow drill; 310, 5mm depth limit hollow drill;

[0037] 400, sliding handle accessories; 401, guide; 402, depth limit drill; 403, depth limit flat head drill;

[0038] 500-guide wire drill;

[0039] 501-drill tip; 502-drill rod; 503-drill tail; 5031-opening slot; 5031a-slot; 5031b-slot cavity; 5031c-inclined guide surface; 5032-tail plate. 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 drawings, the size and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. Moreover, the same reference numerals denote 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 discloses a guide wire drill with an open groove at the tail end, which is a guide wire drill that can be used for drilling tibia and fibula tunnels.

[0045] like Figures 1 to 4 As shown, the guide wire drill with an open slot at the end includes:

[0046] Drill rod 502;

[0047] A drill tip 501 is disposed at the front end of the drill rod 502;

[0048] The drill tail 503 is disposed at the tail end of the drill rod 502. The drill tail 503 is provided with an open groove 5031, and the open groove 5031 is used for hanging a wire.

[0049] During implementation, a suitable position is selected on the bone, and after drilling a bone tunnel using a guide wire drill with an open slot at the tail end, the wire is hung directly in the open slot at the tail end to guide the suture through the bone tunnel, and open titanium plates are hung at both ends to complete the repair surgery.

[0050] In this embodiment, the drill rod 502 is a cylindrical rod, and the diameter of the drill rod 502 is 2-3 mm. For example, the diameter of the drill rod 502 is 2.4 mm.

[0051] Furthermore, the drill rod 502 is provided with scale marks to facilitate real-time observation of the drilling depth during operation.

[0052] In one optional embodiment, the drill tail 503 includes a tail plate 5032, the tail plate 5032 is a rectangular plate with rounded corners, the longitudinal axis of the tail plate 5032 coincides with the axis of the drill rod 502; the opening groove 5031 is provided on the tail plate 5032. The thickness of the tail plate 5032 is less than the diameter of the drill rod 502, and the height of the tail plate 5032 is equal to the diameter of the drill rod 502.

[0053] In one of the optional embodiments, the opening groove 5031 has a connected slot 5031a and a slot cavity 5031b, and the slot cavity 5031b extends from the slot 5031a toward the end of the drill tail 503 to form a hook-shaped structure. When the suture is hung from the slot 5031a into the slot cavity 5031b, it is hung by the hook-shaped opening groove, which can prevent the suture from falling out of the opening groove during the process of guiding the suture through the bone tunnel, thereby ensuring the reliability of the hanging line.

[0054] Exemplarily, the tail plate 5032 has two parallel narrow sides in the height direction, the distance between the two narrow sides is equal to the diameter of the drill rod 502, and the notch 5031a is located on one of the narrow sides.

[0055] Furthermore, an inclined guide surface 5031c is provided on the narrow side with the notch 5031a, and the inclined guide surface 5031c is inclined from the tail of the drill rod 502 to the groove cavity 5031b. By providing the inclined guide surface 5031c at the notch 5031a, the suture is easier to be hung in the open groove 5031.

[0056] In this embodiment, the drill tip 501 may be a wedge-shaped, conical, or multi-faceted conical structure.

[0057] In this embodiment, the drill tip 501, the drill rod 502 and the drill tail 503 are integrally formed. The opening groove 5031 can be made by laser cutting.

[0058] Compared with the prior art, the guide wire drill with an open groove at the tail end provided in this embodiment has a small diameter. After selecting a suitable position on the bone to drill a thinner bone channel, the wire can be directly hung in the open groove at the tail end to guide the suture through the bone channel, and open titanium plates can be hung at both ends. Drilling a thinner bone channel can avoid bone channel splitting and can reduce surgical steps, allowing doctors to complete the operation more quickly.

[0059] Example 2

[0060] Another specific embodiment of the utility model discloses a sight for tibia and fibula surgery, including the guide wire drill with an open groove at the tail end in Example 1. It can also be understood that the guide wire drill with an open groove at the tail end is an accessory of the sight for tibia and fibula surgery.

[0061] like Figures 5 to 10 As shown, the aimer for tibia and fibula surgery includes a handle 100, a sliding handle 200, a handle accessory 300 and a sliding handle accessory 400; the handle 100 has an arc-shaped handle arm 101, and the handle arm 101 is provided with an arc-shaped slide groove 106; the sliding handle 200 has an arc-shaped sliding handle arm 201, and the sliding handle arm 201 can be slidably installed in the arc-shaped slide groove 106, and has a common center with the handle arm 101, which can also be understood that the handle arm 101 and the sliding handle arm 201 are two concentric arcs; 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 installed on the first end of the handle arm 101 respectively; the sliding handle accessory 400 has a guide The guide 401, the depth limiting drill 402 and the depth limiting flat head drill 403 are respectively removable and installed on the first end of the sliding handle arm 201, the depth limiting drill 402 is used to drill the bone canal, and the depth limiting flat head drill 403 is used to clean the bone canal after the depth limiting drill 402 drills a hole; wherein, the end of the guide 401 and the end of the protective baffle can contact at the center of the circle and can rotate around the center of the 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] Furthermore, there are multiple observation holes, and the multiple observation holes are evenly arranged in the arc-shaped slide groove 106.

[0068] In one of the optional embodiments, the end of the guide 401 is provided with an abutment portion, and the abutment portion has an outer arc surface, and the end of the protective baffle is provided with an abutment matching portion, and the abutment matching portion has an inner arc surface.

[0069] 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.

[0070] 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 6 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.

[0071] 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.

[0072] The operation process of using the tibia and fibula surgery aiming device of this embodiment is as follows:

[0073] After drilling to a predetermined depth using the guide wire drill 500, 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.

[0074] Compared with the prior art, the aimer for tibia and fibula surgery provided in this embodiment is provided with a handle and a sliding handle that can slide relative to each other, and the end of the guide can contact the end of the protective baffle at the center of the circle and can rotate around the center of the 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, protecting the bone canal from secondary damage; the utility model can select a suitable position on the bone to drill the angled bone canal through the line, so that the doctor can more conveniently select a suitable position to drill the angled bone canal during surgery. The drilled angled bone canal is non-linear, such as V-shaped. By drilling the angled bone canal, some important nerves and joint surfaces can be avoided; the matching guide can also be used to pass the guide wire and suture.

[0075] 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 guide wire drill with an open groove at the tail end, characterized in that: include: Drill rod (502); A drill tip (501) is disposed at the front end of the drill rod (502); The drill tail (503) is arranged at the tail end of the drill rod (502), and the drill tail (503) is provided with an open groove (5031), and the open groove (5031) is used for hanging a wire.

2. The guide wire drill with an open groove at the tail end according to claim 1, characterized in that: The drill tail (503) comprises a tail plate (5032), the longitudinal axis of the tail plate (5032) coincides with the axis of the drill rod (502); the opening groove (5031) is arranged on the tail plate (5032).

3. The guide wire drill with an open groove at the tail end according to claim 2, characterized in that: The thickness of the tail plate (5032) is smaller than the diameter of the drill rod (502), and the height of the tail plate (5032) is equal to the diameter of the drill rod (502).

4. The guide wire drill with an open groove at the tail end according to claim 3, characterized in that: The open groove (5031) comprises a connected groove opening (5031a) and a groove cavity (5031b), and the groove cavity (5031b) extends from the groove opening (5031a) toward the end of the drill tail (503) to form a hook-shaped structure.

5. The guide wire drill with an open groove at the tail end according to claim 4, characterized in that: The tail plate (5032) has two parallel narrow sides in the height direction, the distance between the two narrow sides is equal to the diameter of the drill rod (502), and the notch (5031a) is located on one of the narrow sides.

6. The guide wire drill with an open groove at the tail end according to claim 5, characterized in that: An inclined guide surface (5031c) is provided on the narrow side with the notch (5031a), and the inclined guide surface (5031c) is inclined from the tail of the drill rod (502) toward the groove cavity (5031b).

7. The guide wire drill with an open groove at the tail end according to any one of claims 1 to 6, characterized in that: The diameter of the drill rod (502) is 2-3 mm, and scale marks are provided on the drill rod (502).

8. The guide wire drill with an open groove at the tail end according to claim 7, characterized in that: The diameter of the drill rod (502) is 2.4 mm.

9. The guide wire drill with an open groove at the tail end according to claim 1, characterized in that: The drill tip (501) is in a wedge-shaped, conical, or multi-faceted conical structure; The drill tip (501), the drill rod (502) and the drill tail (503) are integrally formed.

10. A sight for tibia and fibula surgery, characterized in that: A guide wire drill with an open groove at the tail end as described in any one of claims 1 to 9.

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