CN113576597A

CN113576597A - Ankle joint triangular ligament bone tunnel locator

Info

Publication number: CN113576597A
Application number: CN202110997739.4A
Authority: CN
Inventors: 徐浩; 刘庆东
Original assignee: Suzhou Ruizhu Medical Instrument Co ltd
Current assignee: Suzhou Ruizhu Medical Instrument Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2021-11-02

Abstract

The invention discloses an ankle joint triangular ligament bone tunnel positioner which comprises a handle, a movable seat, a hook and a positioning sleeve, wherein an arc limiting through groove is formed in the lower portion of the handle, the movable seat is fixed on the handle through a handle screw, the hook is installed on the right side of the movable seat, the handle is sleeved on the positioning sleeve in a sliding mode close to the upper end of the handle, an inclined rack groove is formed in the left side of the positioning sleeve, a movable groove is formed in the inner side of the top of the handle, an inclined sawtooth clamping block is connected to the bottom of the movable groove through a spring, and a buffering through groove is formed in the inclined sawtooth clamping block. Compared with the prior art, the method has the advantages that: the invention can be well suitable for ankle joint triangular ligament repair and triangular ligament reconstruction, and has wide application range and strong adaptability; the head of the hook is pointed, thin and slender, has a certain radian, is easier to insert and is more stable after being positioned; the invention can accurately position the starting point of the triangular ligament on the medial malleolus, and has the advantages of simple operation, accurate positioning and strong popularization.

Description

Ankle joint triangular ligament bone tunnel locator

Technical Field

The invention relates to the technical field of medical instruments, in particular to an ankle triangular ligament bone tunnel positioner.

Background

Ankle triangular ligament injury is a common injury of the ankle, and is often accompanied by ankle fracture. At present, the repair of broken ligaments is supported by a plurality of documents, the ankle joint is more stable after the ligaments are repaired, and the function exercise can be performed at an early stage, so that the function recovery is better. The repair method comprises incision repair, minimally invasive arthroscopic repair and the like, the arthroscopic repair has the advantages of small wound, quick recovery and the like, however, with the increase of the application of the ankle arthroscope, the arthroscopic repair gradually replaces the traditional incision repair.

How to accurately position the starting point of the triangular ligament on the medial malleolus will directly affect the effect after repair. In order to be able to precisely locate the position of the origin of the triangular ligament on the medial malleolus, we propose an ankle triangular ligament bone tunnel locator here.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the technical difficulties and provide the ankle joint triangular ligament bone tunnel positioner which can accurately position the position of the starting point of the triangular ligament on the medial malleolus.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides an ankle joint triangular ligament bone tunnel locator, includes handle, sliding seat, hook and position sleeve, the spacing logical groove of arc has been seted up to the handle lower part, the sliding seat passes through the handle screw fixation on the handle, the handle screw passes the spacing logical groove of arc, the hook is installed on the sliding seat right side, the handle is close to upper end department and slides and cup joint on the position sleeve, the rack groove has been seted up to the position sleeve left side, the activity groove has been seted up to handle top inboard, there is oblique sawtooth fixture block bottom in the activity groove through spring coupling, oblique sawtooth fixture block and rack groove cooperate, have seted up the buffering on the oblique sawtooth fixture block and have led to the groove, the buffering leads to the inslot side and is equipped with the stopper of fixing on the activity inslot wall.

As an improvement, the lower end of the positioning sleeve is provided with a sawtooth pointed end. The positioning sleeve is convenient to be positioned on the bone inclined plane better.

As an improvement, the handle is arc-shaped, and scale marks are arranged at the positions, corresponding to the arc-shaped limiting through grooves, of the front side of the handle.

As an improvement, a slot is formed in the right side of the movable seat, and the tail end of the hook is fixed in the slot through a locking screw. The hook is more convenient and firm to install.

As a improvement, a finger groove is arranged on the inner side of the handle. In order to enable a more secure and comfortable grip of the handle.

Compared with the prior art, the invention has the advantages that:

1. the invention can be well suitable for ankle joint triangular ligament repair and triangular ligament reconstruction, and has wide application range and strong adaptability;

2. the head of the hook is pointed, thin and slender, has a certain radian, is easier to insert and is more stable after being positioned;

3. the invention can accurately position the starting point of the triangular ligament on the medial malleolus, and has the advantages of simple operation, accurate positioning and strong popularization.

Drawings

Fig. 1 is a structural schematic diagram of a primary view direction of an ankle triangular ligament bone tunnel locator of the invention.

Fig. 2 is a structural diagram of the ankle joint triangular ligament bone tunnel locator in the rear view direction.

Fig. 3 is an enlarged view of a of an ankle triangular ligament bone tunnel locator of the present invention.

Figure 4 is a perspective view of an ankle triangular ligament bone tunnel locator of the present invention.

As shown in the figure: 1. a handle; 2. a movable seat; 3. a hook; 4. a positioning sleeve; 5. an arc-shaped limiting through groove; 6. a handle screw; 7. a helical rack slot 7; 8. a movable groove; 9. a spring; 10. a sloping sawtooth fixture block; 11. a buffer through groove; 13. a limiting block; 14. scale marks; 15. and (4) a slot.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides an ankle joint triangular ligament bone tunnel locator, includes handle 1, sliding seat 2, hook 3 and position sleeve 4, the spacing logical groove 5 that leads to of arc has been seted up to 1 lower part of handle, sliding seat 2 passes through handle screw 6 to be fixed on handle 1, handle screw 6 passes the spacing logical groove 5 that leads to of arc, hook 3 is installed on 2 right sides of sliding seat. A slot 15 is formed in the right side of the movable seat 2, the tail end of the hook 3 is fixed in the slot 15 through a locking screw, and the head of the hook 3 is arc-shaped and 1mm in depth. Handle 1 is the arc and the front side corresponds the spacing position that leads to groove 5 of arc and is provided with scale mark 14, handle 1 inboard is provided with the finger groove.

When using, the operation doctor holds handle 1 and operates the locator, and through removing the spacing logical groove 5 of arc with sliding seat 2, can refer to scale mark 14 during the removal, so the position and the angle of regulation hook 3 that alright be more accurate make and can form certain angle between 4 with the position sleeve for drilling direction is changeable at random more.

Handle 1 is close to upper end department and slides and cup joints on position sleeve 4, rack groove 7 has been seted up to 4 left sides of position sleeve, activity groove 8 has been seted up to 1 top inboard of handle, the bottom is connected with oblique sawtooth fixture block 10 through spring 9 in the activity groove 8, oblique sawtooth fixture block 10 cooperatees with rack groove 7, has seted up the buffering and has led to groove 11 on the oblique sawtooth fixture block 10, buffering leads to the groove 11 inboard and is equipped with stopper 13 of fixing on activity groove 8 inner wall. Wherein, the lower end of the positioning sleeve 4 is provided with a sawtooth pointed end, and the radius of a Kirschner wire channel in the positioning sleeve 4 is 2.5 mm.

When the positioning sleeve 4 is used, the positioning sleeve 4 can be moved downwards by directly pressing the positioning sleeve downwards, and after the positioning sleeve is moved, the inclined sawtooth clamping block 10 is matched with the inclined rack groove 7 under the action of the spring 9, so that the positioning sleeve 4 is fixed (in the process that the positioning sleeve 4 moves downwards, the limiting block 13 moves in the buffer through groove 11); when the positioning sleeve 4 needs to be retracted upwards, the positioning sleeve 4 is horizontally rotated by 90 degrees, the inclined sawtooth clamping block 10 is further enabled to move leftwards and be separated from the inclined rack groove 7, then the positioning sleeve 4 can be moved upwards, after the positioning sleeve 4 is moved, the position of the positioning sleeve 4 is restored again, then the inclined sawtooth clamping block 10 is matched with the inclined rack groove 7 again under the action of the spring 9, and therefore the positioning sleeve 4 is fixed again. After the locator is fixed to the bone, a 2.5mm kirschner wire or an electric drill can be directly used for drilling.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an ankle joint triangular ligament bone tunnel locator which characterized in that: including handle (1), sliding seat (2), hook (3) and position sleeve (4), the spacing logical groove of arc (5) has been seted up to handle (1) lower part, sliding seat (2) are fixed on handle (1) through handle screw (6), handle screw (6) pass the spacing logical groove of arc (5), hook (3) are installed on sliding seat (2) right side, handle (1) are close to upper end department and slide and cup joint on position sleeve (4), rack groove (7) have been seted up to position sleeve (4) left side, movable groove (8) have been seted up to handle (1) top inboard, the bottom is connected with oblique sawtooth fixture block (10) through spring (9) in movable groove (8), oblique sawtooth fixture block (10) cooperate with rack groove (7), seted up on rack groove (10) and cushioned and led to groove (11), cushioned logical groove (11) inboard is equipped with stopper (13) of fixing on movable groove (8) inner wall.

2. The ankle triangular ligament bone tunnel locator of claim 1, wherein: the lower end of the positioning sleeve (4) is provided with a sawtooth pointed end.

3. The ankle triangular ligament bone tunnel locator of claim 1, wherein: the handle (1) is arc-shaped, and a scale mark (14) is arranged at the position of the front side corresponding to the arc-shaped limiting through groove (5).

4. The ankle triangular ligament bone tunnel locator of claim 1, wherein: a slot (15) is formed in the right side of the movable seat (2), and the tail end of the hook (3) is fixed in the slot (15) through a locking screw.

5. The ankle triangular ligament bone tunnel locator of claim 1, wherein: the inner side of the handle (1) is provided with a finger groove.