CN213430495U - Lock catch and medical bone fixing and locking device - Google Patents

Abstract

The utility model discloses a hasp and medical bone fixation locking device, include: the buckle body, this internal cable fixed passage that forms of buckle, form concave-convex structure on the cable fixed passage wall, through form concave-convex structure on the inside cable fixed passage wall of buckle, under the tight condition of clamp with the buckle, increased the frictional force of cable and cable fixed passage wall, better promotion to the fastening intensity of cable, the effectual phenomenon of skidding takes place for the cable fixed passage wall of having avoided in cable and the buckle.

Description

Lock catch and medical bone fixing and locking device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to hasp and medical bone fixation locking device.

Background

When fracture, bone fracture and other conditions occur at four limbs of a human body, the bones are often bundled and fixed by using rope-shaped objects such as titanium cables or steel cables and other cables, and then the cables are locked by using the lock catches to finish the bundling and fixing of the bones. In actual operation, the cable is firstly threaded around a part to be bundled, then both ends of the cable are both threaded through the locking through holes of the upper lock catches, and then the cable is tightened to be locked in the lock catches, so that the cable is fastened and locked.

The application number is CN 200920075138.2's chinese utility model patent discloses a medical bone fixation steel cable locking device, including steel cable and sheath, the steel cable form by the weaving of stranded steel wire, the sheath detain the both ends cover of steel cable and connect, press from both sides the sheath tightly in order to realize fastening the steel cable through with the pliers. The problem that above-mentioned device exists lies in, makes its fastening through the mode of pressing from both sides tight sheath between two steel cables in the sheath, in the in-service use, presss from both sides tight back with the sheath because frictional force is not big enough between steel cable and the sheath inner wall, still can appear the phenomenon that the steel cable slided in the sheath, and its actual fastening strength is not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lock catch, include: the cable fixing device comprises a lock catch body, wherein a cable fixing channel is formed in the lock catch body, and a concave-convex structure is formed on the wall of the cable fixing channel.

Further, the concave-convex structure is a wavy texture structure or a threaded structure.

Furthermore, the end of the cable fixing channel forms a protrusion, and the protrusion and the side wall of the cable fixing channel 2 form an outward splayed diversion trench.

Further, a groove is formed on the outer wall of the end part of the lock catch body.

Further, the end of the lock catch body forms a boss structure.

Further, the groove is formed on the boss structure.

Further, the groove corresponds to the protrusion.

Further, the cross-sectional shape of the lock catch body is oval.

Further, the cross-sectional shape of the cable fixing channel is an ellipse.

The utility model also provides a medical bone fixation locking device, it includes above-mentioned hasp and cable.

Compared with the prior art, the technical scheme of the utility model have following advantage:

(1) the utility model provides a hasp through form concave-convex structure on the inside cable fixed channel wall of hasp, under the tight condition of hasp clamp, has increased the frictional force of cable and the fixed channel wall of cable, better promotion to the fastening intensity of cable, the effectual phenomenon of skidding takes place for the fixed channel wall of cable in avoiding cable and the hasp.

(2) The buckle provided by the utility model, through setting the concave-convex structure into the wavy structure, further increases the friction force between the cable and the cable fixing channel wall, and further improves the fastening strength of the cable; through setting concave-convex structure to the helicitic texture, when increasing fastening strength, processing is convenient, saves time cost.

(3) The utility model provides a lock catch, through forming the arch at the tip of cable fixed passage, the arch forms the guiding gutter of outer splayed with the cable fixed passage lateral wall, the cooperation of arch and guiding gutter makes the cable in the lock catch put into the splayed shape, compares two cables parallel placement in the prior art, and the frictional force that the splayed was placed is bigger, is favorable to promoting cable fastening strength; meanwhile, when the splayed bifurcation structure is fixed, the compression of the parallel arrangement on human tissues is reduced, and the fixing effect on bones is improved; simultaneously, form the splayed shape through setting up the arch, be not into two independent with cable fixed passage branch, when the cable passes, convenient to use.

(4) The utility model provides a hasp forms the recess on the outer wall of this end of body of hasp, only needs just to make the hasp warp through less power when pressing from both sides the hasp tight, is favorable to reducing and presss from both sides the tight degree of difficulty, when increasing bulk strength to do not increase the external force when pressing from both sides tight hasp.

(5) The utility model provides a locking device is fixed to medical bone through using above-mentioned hasp, has improved the fastening intensity to the cable, and the cable is walked conveniently, has increased bulk strength, reduces the port fracture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the lock of the present invention;

fig. 2 is a front view of the latch of the present invention;

fig. 3 is a top view of the latch of the present invention;

fig. 4 is a right side view of the latch of the present invention;

fig. 5 is a sectional view taken along line a-a of the right side view of the latch of the present invention;

fig. 6 is a B-B sectional view of the right side view of the lock of the present invention;

the reference numbers in the figures denote: 1-a lock catch body; 2-cable fixing channel; 3-a diversion trench; 4-bulge; 5-a concave-convex structure; 6-groove; 7-boss structure.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 to 6, the present embodiment discloses a latch, comprising: the cross-sectional shape of the latch body 1 is not particularly limited, and may be a circle, an ellipse, a hexagon or other irregular shapes, and in this embodiment, the cross-sectional shape of the latch body 1 is an ellipse; form cable fixed passage 2 in the hasp body 1, it is right the cross sectional shape of cable fixed passage 2 does not specifically prescribe a limit, and circular, square, oval or other irregular shapes all can, preferred oval in this embodiment, because the oval passageway compares regular circular passage, the cable receives the extrusion more easily in the oval passageway, consequently cable fixed passage 2 adopts oval design to do benefit to the promotion the cable is in firmness when receiving the extrusion in cable fixed passage 2, form concave-convex structure 5 on the 2 walls of cable fixed passage, it is right concave-convex structure 5's specific shape does not do the restriction, can be wave, screw thread shape or bump shape, specifically in this embodiment, concave-convex structure 5 is wave line structure or helicitic texture.

Further, a protrusion 4 is formed at an end of the cable fixing channel 2, preferably, an edge of the protrusion 4 is in smooth transition with a wall of the fixing channel 2, in addition, a specific structure of the protrusion 4 is not limited, and two cables in the cable fixing channel 2 can be separated by a certain distance, specifically, in this embodiment, the protrusion 4 and a side wall of the cable fixing channel 2 form an outward splayed diversion trench 3, and the diversion trench 3 is used for placing the cables.

Further, a groove 6 is formed in the outer wall of the end portion of the lock catch body 1, the groove 6 is used for reducing the difficulty of clamping the lock catch body 1, and as an optimal scheme, the groove 6 corresponds to the protrusion 4.

Example 2

As shown in fig. 2, the present embodiment discloses a lock catch, which is different from the lock catch provided in embodiment 1 in that a boss structure 7 is formed at an end of the lock catch body 1, the specific structure and shape of the boss structure 7 are not limited, and the strength of the end portions at both ends of the lock catch body 1 can be enhanced, in this embodiment, the boss structure 7 is formed by surrounding the end of the lock catch body 1, and the cross-sectional shape thereof is preferably arc-shaped and is in transition with the surface arc-shaped surface of the lock catch body 1.

Further, the groove 6 is formed on the boss structure 7.

Example 3

The embodiment discloses a medical bone fixation locking device, which comprises the lock catch and the cable in embodiment 1 or embodiment 2, wherein the cable is a titanium alloy cable, of course, the cable can be made of any material in the prior art, and the shape of the cable is preferably a fused or pressed structure with one end being spherical and the other end being pointed or frustum-shaped.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. A latch, comprising: the cable fixing lock catch comprises a lock catch body (1), wherein a cable fixing channel (2) is formed in the lock catch body (1), and a concave-convex structure (5) is formed on the wall of the cable fixing channel (2).

2. A lock according to claim 1, wherein the relief (5) is a wave structure or a thread structure.

3. A catch as claimed in claim 1 or 2, characterized in that the end of the cable fixing channel (2) forms a protrusion (4), which protrusion (4) forms with the side wall of the cable fixing channel (2) an outwardly splayed flow guide groove (3).

4. A catch according to claim 3, characterized in that a recess (6) is formed in the outer wall of the end of the catch body (1).

5. A lock catch as claimed in claim 4, characterized in that the end of the lock catch body (1) forms a boss structure (7).

6. A catch according to claim 5, characterized in that the recess (6) is formed in the boss structure (7).

7. A catch according to claim 6, wherein the recess (6) corresponds to the projection (4).

8. A lock catch as claimed in claim 7, characterized in that the cross-sectional shape of the lock catch body (1) is oval.

9. A catch according to claim 8, characterized in that the cross-sectional shape of the cable fixing channel (2) is oval.

10. A medical bone fixation locking device comprising a latch and cable as claimed in any one of claims 1 to 9.

Images