Ankle joint punching sighting device

Abstract

The utility model relates to an ankle joint punching sighting device which comprises a sighting device handle, a first sliding rail, a second sliding rail and a second sliding rail. The aiming guider is arranged in the first slide way in a penetrating manner and is provided with a first through hole; the ankle joint sighting device is connected with the sighting device handle and provided with a supporting point, and the supporting point is located on the axis of the first through hole; the outer wall of the aiming guider is provided with ratchets, the sighting device handle is provided with a top tooth mechanism, the top tooth mechanism enables top teeth to protrude into the first sliding way, and the top teeth and the ratchets are matched to enable the aiming guider to slide in the direction towards the supporting point in a one-way mode. According to the ankle joint punching sighting device, redundant tools are not needed for assisting in sighting, direction deviation in the drilling process can be prevented, and safety and stability in the punching process are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of orthopedic medical devices, and particularly relates to an ankle joint punching aiming device. Background Art

[0002] The ligaments of the ankle joint are very easy to be damaged. When reconstructing the ligaments of the ankle joint, it is usually necessary to punch holes in the talus and calcaneus.

[0003] In the prior art, the punching auxiliary aiming device is usually arranged in a split manner. First, the aiming hole in the punching auxiliary aiming device is nailed to the ankle joint, and the position to be punched is measured by using a measuring tool. Then, the drilling guide rod is nailed to the corresponding position to be punched on the ankle joint. Then, the drill bit starts to punch holes along the axial direction of the drilling guide rod through the channel in the drilling guide rod. This kind of punching auxiliary aiming device needs to use a variety of instruments in cooperation, the operation is complex, and it is necessary to manually determine that the aiming hole and the guide rod are on the same axis, which cannot guarantee the accuracy of the punching position and is prone to medical accidents. Summary of the Utility Model

[0004] In view of the above analysis, the embodiments of the present utility model aim to provide an ankle joint punching aiming device to solve one or more of the above problems existing in the prior art.

[0005] The purpose of the present utility model is realized as follows:

[0006] An ankle joint punching aiming device includes:

[0007] An aiming device handle having a first slideway;

[0008] An aiming guide is disposed in the first slideway, and the aiming guide has a first through hole;

[0009] An ankle joint aiming device is connected to the aiming device handle and has a support point and a slide rail, and the support point is located on the axis of the first through hole;

[0010] The outer wall of the aiming guide has ratchet teeth, and the aiming device handle has a top tooth mechanism, and the top tooth mechanism makes the top tooth protrude into the first slideway, and the top tooth and the ratchet teeth cooperate to make the aiming guide slide unidirectionally in the direction towards the support point.

[0011] Further, the aiming device handle further has a second slideway; the second slideway cooperates with the slide rail to make the ankle joint aiming device slide in the second slideway with the support point as the center of a circle.

[0012] Further, the sight handle further has a first support arm and a second support arm; the first support arm is disposed between the second support arm and the slide rail, and the first support arm is perpendicular to the second support arm, and the slide rail is arc-shaped.

[0013] Further, the sight handle further has a reading mark, the slide rail is provided with scale lines, and the reading mark is matched with the scale lines to obtain the included angle between the second support arm and the second slideway.

[0014] Further, the sight handle has a second through hole communicating with the second slideway, and the second through hole is used to observe the position of the slide rail in the second slideway.

[0015] Further, the top tooth has a first end face and a second end face, the first end face is perpendicular to the first slideway, and the first end face faces the step face of the ratchet tooth.

[0016] Further, a positioning tooth is provided at one end of the sight guide near the support point, and the positioning tooth is configured to cooperate with the support point to fix the ankle joint punching sight at the position to be punched.

[0017] Further, a baffle is provided at one end of the sight guide away from the support point, and the baffle is used to prevent the sight guide from sliding out of the first slideway.

[0018] Further, the sight handle further has a knob, the knob has a limiting portion, the slide rail is further provided with a limiting groove, and the limiting portion is disposed in the limiting groove to limit the relative movement range between the slide rail and the second slideway.

[0019] Further, the top tooth mechanism further includes a spring and a screw, and the spring is located between the top tooth and the screw.

[0020] Compared with the prior art, the present utility model can at least achieve one of the following beneficial effects:

[0021] a) For the ankle joint punching sight provided by the present utility model, the support point of the ankle joint sight and the first through hole of the sight guide are always on the same axis. By providing ratchet teeth on the outer wall of the sight guide and cooperating with the top teeth in the sight handle, the sight guide can only slide unidirectionally in the direction towards the support point, so as to fix the ankle joint punching sight at the position to be punched, without the need for additional tools to assist in aiming, which can prevent deviation in the direction during drilling and ensure the safety and stability of the punching process;

[0022] b) The ankle joint punching sight provided by the present utility model can be installed in the second slideway, enabling the ankle joint sight to slide within a certain range with the support point as the center of the circle, so that the ankle joint punching sight can complete the punching tasks for different-shaped ankle joints;

[0023] c) The ankle joint punching sight provided by the present utility model realizes the visualization of the position of the ankle joint sight in the second slideway by arranging a plurality of through holes communicating with the second slideway on the sight handle, and reduces the weight of the ankle joint punching sight, making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the embodiments of the present specification, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0025] Figure 1 is a schematic structural diagram of the ankle joint punching sight provided by the present utility model;

[0026] Figure 2 is a front view of the sight handle provided by the present utility model;

[0027] Figure 3 is a rear view of the sight handle provided by the present utility model;

[0028] Figure 4 is a sectional view of the sight handle provided by the present utility model;

[0029] Figure 5 is a schematic structural diagram of the ankle joint sight provided by the present utility model;

[0030] Figure 6 is a schematic structural diagram of the ratchet tooth and the top tooth provided by the present utility model.

[0031] Reference numerals:

[0032] 1 - Sight handle; 101 - First slideway; 102 - Top tooth mechanism; 102a - Top tooth; S1 - First end face; S2 - Second end face; 102b - Spring; 102c - Screw; 103 - Second slideway; 104 - Knob; 104a - Limiting part; 105 - Second through - hole; 106 - Reading mark; 2 - Sight guide; 201 - First through - hole; 202 - Ratchet tooth; 202a - Step face; 203 - Positioning tooth; 204 - Baffle; 3 - Ankle sight; 301 - Support point; 302 - Slide rail; 302a - Limiting groove; 302b - Scale line; 303 - First support arm; 304 - Second support arm. Detailed implementation mode

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. It should be noted that, without conflict, the implementation manners and features in the present disclosure can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] In the drawings, for the purpose of clarity and / or description, the dimensions and relative dimensions of components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process sequences may be executed in a different order from that described. For example, two consecutive processes described may be executed substantially simultaneously or in the reverse order of that described. In addition, the same reference numerals denote the same components.

[0035] Embodiment 1

[0036] A specific embodiment of the present utility model, as Figures 1-6 shown, discloses an ankle punching sight, comprising:

[0037] A sight handle 1, having a first slideway 101;

[0038] A sight guide 2, passing through the first slideway 101, and the sight guide 2 has a first through - hole 201;

[0039] An ankle sight 3, connected to the sight handle 1, having a support point 301 and a slide rail 302, and the support point 301 is always located on the axis of the first through - hole 201;

[0040] The outer wall of the aiming guide has ratchet teeth 202, the aiming handle 1 has a top tooth mechanism 102, the top tooth mechanism 102 makes the top tooth 102a protrude into the first slideway 101, and the cooperation between the top tooth 102a and the ratchet teeth 202 enables the aiming guide 2 to slide unidirectionally along the direction towards the support point 301.

[0041] During implementation, the operator holds the aiming handle 1, first determines the positions to be drilled on both sides of the ankle joint, fixes the support point of the ankle joint aiming device at one of the positions to be drilled, and then slides the aiming guide 2 along the direction towards the support point 301 to fix the aiming guide at another corresponding position to be drilled, so that the ankle joint drilling aiming device is fixed on the ankle joint. Finally, a guide pin or drill bit is passed through the first through-hole to drill holes on the ankle joint, and the two positions to be drilled are connected.

[0042] Compared with the prior art, for the ankle joint drilling aiming device provided in this embodiment, the support point of the ankle joint aiming device and the first through-hole of the aiming guide are always on the same axis. By setting ratchet teeth on the outer wall of the aiming guide and cooperating with the top teeth in the aiming handle, the aiming guide can only slide unidirectionally along the direction towards the support point, thereby fixing the ankle joint drilling aiming device at the position to be drilled, without the need for additional tool assistance for aiming, which can prevent deviation in the direction during drilling and ensure the safety and stability of the drilling process.

[0043] In this embodiment, the aiming handle 1 further has a second slideway 103; the second slideway cooperates with the slide rail, enabling the ankle joint aiming device to slide in the second slideway with the support point as the center of the circle; the aiming handle 1 further has a first support arm 303 and a second support arm 304; the first support arm 303 is arranged between the second support arm 304 and the slide rail 302, and the first support arm 303 is perpendicular to the second support arm 304, and the slide rail 302 is arc-shaped.

[0044] Specifically, the slide rail 302 is installed in the second slideway 103, the first support arm 303 is respectively connected to the slide rail 302 and the second support arm 304, and the first support arm 303 is perpendicular to the second support arm 304, enabling the ankle joint aiming device 3 to slide within a certain range with the support point 301 as the center of the circle. At the same time, the support point 301 is always located on the axis of the first through-hole 201 of the aiming guide 2, enabling the ankle joint drilling aiming device to complete the drilling tasks for ankle joints of different shapes.

[0045] In this embodiment, the aiming device handle 1 further has a reading mark 106, the slide rail 302 is provided with a scale line 302b, and the reading mark 106 cooperates with the scale line 302b to obtain the included angle between the second support arm 304 and the second slideway 103.

[0046] Exemplarily, the degree mark 106 can be set as a protrusion or printed on the aiming device handle (1); there are 7 scale lines 302b, so that the included angle between the second support arm 304 and the second slideway 103 ranges from 65° to 95°, that is, the ankle joint aiming device 3 takes the support point 301 as the center of the circle, and the maximum sliding angle is 30°.

[0047] In this embodiment, a second through hole 105 communicating the aiming device handle 1 with the second slideway 103 is provided, and the second through hole 105 is used to observe the position of the slide rail 302 in the second slideway 103. By providing a plurality of the second through holes 105 on the aiming device handle 1, the weight of the ankle joint punching aiming device can be reduced, the structure of the ankle joint punching aiming device can be made more stable, and at the same time, the position of the slide rail 302 in the second slideway 103 can be observed.

[0048] In this embodiment, the top tooth 102a has a first end face S1 and a second end face S2, the first end face S1 is perpendicular to the first slideway 101, and the first end face S1 faces the step face 202a of the ratchet tooth 202.

[0049] Exemplarily, the second end face S2 can be set perpendicular to the first slideway 101, or can be set at an acute angle with the first slideway 101. Preferably, the second end face S2 is set as an arc shape to facilitate the sliding of the aiming guide 2 in the first slideway 101.

[0050] Specifically, when sliding the aiming guide 2, the ratchet tooth 202 contacts the second end face S2 of the top tooth 102a, so that the top tooth 102a is pushed open, and the aiming guide 2 can slide a certain distance in the direction towards the support point 301. When the ratchet tooth 202 contacts the first end face S1 of the top tooth 102a, the two form an abutting state, so that the aiming guide 2 cannot slide in the direction away from the support point 301.

[0051] In this embodiment, a positioning tooth 203 is provided at one end of the aiming guide 2 close to the support point 301, and the positioning tooth 203 is configured to cooperate with the support point 301 to fix the ankle joint punching aiming device at the position to be punched.

[0052] Exemplarily, the positioning teeth 203 have at least three tooth-like structures and are evenly distributed in the circumferential direction of the positioning teeth 203, so that the aiming guide 2 can be nailed on the ankle joint.

[0053] In this embodiment, a baffle 204 is provided at one end of the aiming guide 2 away from the support point 301. The baffle 204 is used to prevent the aiming guide 2 from sliding out of the first slideway 101. The baffle 204 can be a sheet-like structure of any shape and has a hole adapted to the first through hole 201.

[0054] In this embodiment, the aiming device handle 1 further has a knob 104. The knob 104 has a limiting portion 104a. The slide rail 302 is further provided with a limiting groove 302a. The limiting portion 104a is arranged in the limiting groove 302a to limit the relative movement range between the slide rail 302 and the second slideway 103.

[0055] Preferably, the limiting portion 104a is adapted to the limiting groove 302a. By embedding the limiting portion 104a into the limiting groove 302a, the slide rail 302 can only slide within a limited range in the second slideway 103 and cannot move in other directions.

[0056] In this embodiment, the top tooth mechanism 102 further includes a spring 102b and a screw 102c. The spring is located between the top tooth 102a and the screw 102c. The screw 102c is used to fix or release the relative movement between the top tooth 102a and the aiming device handle 1.

[0057] Specifically, the top tooth mechanism 102 passes through the top end of the aiming device handle 1, and the axis of the top tooth mechanism 102 is perpendicular to the axis of the first slideway 101. The hole in the aiming device handle 1 through which the top tooth mechanism 102 passes has a threaded structure, so that the screw 102c can be screwed in or out. When drilling, the screw 102c is screwed into the threaded structure, so that the aiming guide 2 can only slide in the direction towards the support point 301. When the drilling is completed, the screw 102c is screwed out, so that the aiming guide 2 can slide out in the direction away from the support point 301.

[0058] The above specific embodiments further elaborate on the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above is only the specific embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ankle punching aiming device, characterized in that, Comprising: A sighting handle (1) having a first slideway (101); A sighting guide (2) inserted into the first slideway (101), the sighting guide (2) having a first through-hole (201); An ankle sighting device (3) connected to the sighting handle (1), having a support point (301) and a slide rail (302), the support point (301) always being located on the axis of the first through-hole (201); The outer wall of the sighting guide has ratchet teeth (202), the sighting handle (1) has a top tooth mechanism (102), the top tooth mechanism (102) causes the top tooth (102a) to protrude into the first slideway (101), and the cooperation between the top tooth (102a) and the ratchet teeth (202) enables the sighting guide (2) to slide unidirectionally in the direction towards the support point (301).

2. The ankle punching aiming device according to claim 1, wherein The sighting handle (1) further has a second slideway (103); The second slideway (103) cooperates with the slide rail (302) to enable the ankle sighting device (3) to slide in the second slideway (103) with the support point (301) as the center of a circle.

3. The ankle punching aiming device according to claim 2, characterized in that, The sighting handle (1) further has a first support arm (303) and a second support arm (304); The first support arm (303) is disposed between the second support arm (304) and the slide rail (302), and the first support arm (303) is perpendicular to the second support arm (304), and the slide rail (302) is arc-shaped.

4. The ankle punching aiming device according to claim 3, wherein, The sighting handle (1) further has a reading mark (106), the slide rail (302) is provided with scale lines (302b), and the cooperation between the reading mark (106) and the scale lines (302b) obtains the included angle degree between the second support arm (304) and the second slideway (103).

5. The ankle punching aiming device according to claim 2, characterized in that, The sighting handle (1) has a second through-hole (105) communicating with the second slideway (103), and the second through-hole (105) is used to observe the position of the slide rail (302) in the second slideway (103).

6. The ankle punching aiming device according to claim 1, wherein The top tooth (102a) has a first end face (S1) and a second end face (S2), the first end face (S1) is perpendicular to the first slideway (101), and the first end face (S1) faces the step face (202a) of the ratchet teeth (202).

7. The ankle punching aiming device according to claim 1, characterized in that, A positioning tooth (203) is provided at one end of the sighting guide (2) close to the support point (301), and the positioning tooth (203) is configured to cooperate with the support point (301) to fix the ankle punching sighting device at the position to be punched.

8. The ankle punching aiming device according to claim 1, wherein A baffle (204) is provided at one end of the sighting guide (2) far from the support point (301), and the baffle (204) is used to prevent the sighting guide (2) from sliding out of the first slideway (101).

9. The ankle punching aiming device according to claim 2, characterized in that, The aiming device handle (1) further has a knob (104), the knob (104) has a limiting portion (104a), the slide rail (302) is further provided with a limiting groove (302a), and the limiting portion (104a) is arranged in the limiting groove (302a) to limit the relative movement range between the slide rail (302) and the second slideway (103).

10. The ankle punching aiming device according to claim 1, characterized in that The top tooth mechanism (102) further includes a spring (102b) and a screw (102c), and the spring is located between the top tooth (102a) and the screw (102c).

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