CN214907676U

CN214907676U - Length measuring and threading device for femoral tunnel reconstructed by cruciate ligament

Info

Publication number: CN214907676U
Application number: CN202120087861.3U
Authority: CN
Inventors: 姜博; 马慧; 朱迎春; 朱玉峰; 宓云峰; 贾学文; 王哲洋
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-30
Anticipated expiration: 2031-01-13

Abstract

The embodiment of the utility model provides a femoral tunnel length measurement is rebuild to cruciate ligament, line ware passes belongs to drill bit technical field, include: a bit portion including a bit front face, a bit side face, and a bit bottom face; the front end of the drill rod part is connected and arranged on the bottom surface of the drill bit, the rear end of the drill rod part is provided with a wire passing hole, and the outer surface of the drill rod part is provided with scale marks along the axial direction of the drill rod part; the cross section area of the front end of the drill rod part is smaller than that of the bottom surface of the drill, an inwards concave clamping groove is formed between the front end of the drill rod part and the drill part, and the device can be clamped at one end of the femoral tunnel through the clamping groove; the technical effects that drilling and measuring of the femoral tunnel and threading are realized only by convenient operation of a single instrument are achieved.

Description

Length measuring and threading device for femoral tunnel reconstructed by cruciate ligament

Technical Field

The utility model relates to a drill bit technical field especially relates to a femoral tunnel length measurement is rebuild to cruciate ligament, line ware passes.

Background

With high energy injury, patients with anterior and posterior cruciate ligament rupture tend to rise year by year. After the ligament is damaged, the stability of the knee joint is influenced, meniscus and cartilage are damaged in the later period, and the occurrence process of osteoarthritis is accelerated. The number of arthroscopic cruciate ligament reconstruction procedures has also increased.

At present, the method for measuring the length of the femoral tunnel is to take out a drill bit and then use other measuring tools to measure by extending into the femoral tunnel, so that the measuring method has low efficiency; and when the femoral tunnel needs to be threaded subsequently, the threading tool needs to be placed into the femoral tunnel, so that the operation steps of the whole operation are more.

Therefore, the technical problems of the prior art are as follows: drilling, measuring and threading of femoral tunnels require different instrumental, step-wise operations.

Disclosure of Invention

The embodiment of the application provides a device for measuring the length of a femoral tunnel reconstructed by cruciate ligaments and threading, which solves the technical problem that drilling, measuring and threading of the femoral tunnel in the prior art need different instruments for step-by-step operation; the technical effects that drilling and measuring of the femoral tunnel and threading are realized only by convenient operation of a single instrument are achieved.

The embodiment of the application provides a thighbone tunnel length measurement is rebuild to cruciate ligament, crosses the line ware, thighbone tunnel length measurement is rebuild to cruciate ligament, crosses the line ware and includes: a bit portion including a bit front face, a bit side face, and a bit bottom face; the front end of the drill rod part is connected and arranged on the bottom surface of the drill bit, the rear end of the drill rod part is provided with a wire passing hole, and the outer surface of the drill rod part is provided with scale marks along the axial direction of the drill rod part; the cross-sectional area of the front end of the drill rod part is smaller than the bottom surface of the drill bit, an inwards concave clamping groove is formed between the front end of the drill rod part and the drill bit part, and the device can be clamped at one end of the femoral tunnel through the clamping groove.

Preferably, the drill front face is a face inclined outwardly from front to back.

Preferably, the bit side surface is a vertical surface from front to back.

Preferably, the drill head portion and the drill rod portion are integral.

Preferably, the outer edge of the bottom surface of the bit is inclined forwardly from the outside to the inside.

Preferably, the drill rod portion is a straight rod body.

Preferably, the wire through hole is arranged to penetrate through the drill rod part.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, a traditional drill is optimized, and a clamping groove is formed between the drill rod part and the drill head part, so that the device is conveniently clamped on the end face of the second end of the femoral tunnel; scale marks are arranged on the drill rod part so that an operator can read the length of the femoral tunnel from the first end of the femoral tunnel conveniently; and based on the thread passing hole on the drill rod part, the device can also play a role in passing threads with threads when the femoral tunnel is taken out; the technical problem that drilling, measuring and threading of the femoral tunnel in the prior art need different instruments to be operated in steps is solved; the technical effects that drilling and measuring of the femoral tunnel and threading are realized only by convenient operation of a single instrument are achieved.

Drawings

Fig. 1 is a schematic view of a main view structure of a cruciate ligament reconstruction femoral tunnel length measurement and threading device in an embodiment of the present application;

FIG. 2 is a schematic view of a primary viewing direction structure of the anterior end of a thread passing device for measuring the length of a cruciate ligament reconstruction femoral tunnel according to an embodiment of the present disclosure;

fig. 3 is a perspective structural view of a main view after drilling a femur by a thread passing device for measuring the length of a femoral tunnel reconstructed from cruciate ligaments in an embodiment of the present application;

fig. 4 is a perspective structural diagram of a main view direction when measuring a length of a femoral tunnel reconstructed from cruciate ligaments and measuring a femur by a thread passing device according to an embodiment of the present application.

Reference numerals: 1. drilling a head part; 11. a drill bit front face; 12. a bit side; 13. a drill bottom surface; 2. drilling a rod part; 21. a wire passing hole; 22. scale marks; 3. the femur; 31. the femoral tunnel.

Detailed Description

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The embodiment of the application provides a device for measuring the length and passing a femoral tunnel reconstructed by cruciate ligaments, wherein a traditional drill is optimized, and a clamping groove is formed between a drill rod part and a drill head part, so that the device is clamped on the end face of the second end of the femoral tunnel; scale marks are arranged on the drill rod part so that an operator can read the length of the femoral tunnel from the first end of the femoral tunnel conveniently; and based on the thread passing hole on the drill rod part, the device can also play a role in passing threads with threads when the femoral tunnel is taken out; the technical problem that drilling, measuring and threading of the femoral tunnel in the prior art need different instruments to be operated in steps is solved; the technical effects that drilling and measuring of the femoral tunnel and threading are realized only by convenient operation of a single instrument are achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

A cruciate ligament reconstruction femoral tunnel length measuring and threading device, which is shown in the attached drawings 1-2 in the specification; the femoral tunnel length measurement of cruciate ligament reconstruction, cross the line ware and include: drill bit portion 1 and drill rod portion 2, be provided with scale mark 22 on the drill rod portion 2, and drill rod portion 2 and drill bit portion 1 constitute a draw-in groove, and this device can read the length numerical value that corresponds femoral tunnel 31 from the other end under the condition of card in femoral tunnel 31 one end.

The drill bit part 1, the drill bit part 1 includes a drill bit front face 11, a drill bit side face 12 and a drill bit bottom face 13. It should be noted that the bit front face 11 is a face inclined outward from front to back; the bit flank 12 is a vertical face from front to back.

The drill rod part 2 is specifically a straight rod body, the front end of the drill rod part 2 is connected and arranged on the bottom surface 13 of the drill bit, the rear end of the drill rod part 2 is provided with a wire passing hole 21, and the wire passing hole 21 penetrates through the drill rod part 2. And the outer surface of the drill rod part 2 is provided with scale markings 22 in the axial direction of the drill rod part 2. The cross-sectional area of the front end of the drill rod part 2 is smaller than the bottom surface 13 of the drill bit, an inwards concave clamping groove is formed between the front end of the drill rod part 2 and the drill bit part 1, and the device can be clamped at one end of the femoral tunnel 31 through the clamping groove. It should be noted that the outer edge of the drill bottom surface 13 is inclined forward from the outside to the inside, so that the slot formed by the drill bottom surface 13 is recessed toward the inside of the drill portion 1, so that the slot can be more conveniently clamped on the edge of the end surface of the femoral tunnel 31. It will be appreciated that the drill bit section 1 and the drill rod section 2 are integral.

The working principle is as follows:

referring to the description of the drawings and fig. 3, the device is first used to drill a femur 3. Referring to the specification and the attached fig. 4, after drilling is finished, the clamping groove at the drill bit part 1 is clamped at the edge of the end face of the femoral tunnel 31 through the drill bit part 2, and the length of the femoral tunnel 31 is read from the other side of the femoral tunnel 31 based on the scale mark 22 of the drill bit part 2. After measuring the length of the femoral tunnel 31, a suture is threaded through the thread passing hole 21, and the suture is passed through the femoral tunnel 31 by pulling the drill bit portion 1. The three purposes of drilling, measuring and threading are achieved.

The technical effects are as follows:

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a thighbone tunnel length measurement is rebuild to cruciate ligament, crosses line ware which characterized in that, thighbone tunnel length measurement is rebuild to cruciate ligament, crosses the line ware and includes:

a bit portion including a bit front face, a bit side face, and a bit bottom face;

the front end of the drill rod part is connected and arranged on the bottom surface of the drill bit, the rear end of the drill rod part is provided with a wire passing hole, and the outer surface of the drill rod part is provided with scale marks along the axial direction of the drill rod part;

the cross-sectional area of the front end of the drill rod part is smaller than the bottom surface of the drill bit, an inwards concave clamping groove is formed between the front end of the drill rod part and the drill bit part, and the device can be clamped at one end of the femoral tunnel through the clamping groove.

2. The cruciate ligament reconstruction femoral tunnel length measuring, wire passing device of claim 1, wherein the drill head face is a face inclined outward from anterior to posterior.

3. The cruciate ligament reconstruction femoral tunnel length measuring, wire passing device of claim 1, wherein the drill bit side is an anterior-posterior vertical face.

4. The cruciate ligament reconstruction femoral tunnel length measuring, wire passing device of claim 1, wherein the drill head portion and the drill stem portion are integral.

5. The cruciate ligament reconstruction femoral tunnel length measurement, wire guide of claim 1, wherein an outer edge of the drill base is angled forward from the outside to the inside.

6. The cruciate ligament reconstruction femoral tunnel length measuring and threading device of claim 1, wherein the drill rod portion is embodied as a straight rod body.

7. The cruciate ligament reconstruction femoral tunnel length measurement, wire passing device of claim 1, wherein the wire passing hole is disposed through relative to the drill stem portion.