CN217338777U

CN217338777U - Flexible fixing device for long tubular fracture

Info

Publication number: CN217338777U
Application number: CN202220230573.3U
Authority: CN
Inventors: 缪凤; 蔡国雄; 陈艺辉; 王建雄; 曾达; 林意华
Original assignee: Double Medical Technology Inc
Current assignee: Zhangzhou Third Hospital; Double Medical Technology Inc
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-09-02
Anticipated expiration: 2032-01-27

Abstract

The utility model relates to a flexible fixing device for long tubular fracture, including wire loop and wire loop connector, the middle part of wire loop is the tubulose section, the axial both ends of tubulose section are connected with first line portion and second line portion respectively, first line portion forms the closed loop wire loop head end, the second line portion forms the open loop wire loop tail end, and the free end of second line portion can pass closed loop, passageway back of wire loop head end in proper order and wear out from the opening; the wire loop connecting piece comprises a plate body, wherein at least two wire passing holes are formed in the plate body at intervals; the tubular section of the wire loop sequentially passes through the at least two wire passing holes, and the opening part of the tubular section is positioned between the at least two wire passing holes to form an adjustable, self-locking and knotless flexible fixing device.

Description

Flexible fixing device for long tubular fracture

Technical Field

The utility model relates to the field of medical equipment, specifically relate to a flexible fixing device for long tubular fracture.

Background

The long diaphysis fracture in the four limbs injury is usually internally fixed by a steel plate or an intramedullary nail, and the problem of unstable fracture end fixation can occur after partial internal fixation operation of the steel plate or the intramedullary nail, so that the postoperative bone nonunion or delayed healing of a patient can be caused. In addition, the scheme of assisting the fixation of unstable fracture ends or bone blocks by adopting metal cables such as steel wires and the like also exists in the prior art, but the metal cables such as the steel wires and the like are too rigid, so that the wound surface pollution or the cross infection of medical staff caused by puncturing gloves in the operation is easy to appear clinically, and the residual metal debris of the fractured metal cables in the operation can cause infection or have foreign body sensation. And the metal cables such as the steel wire and the like after the operation are also easy to break and lose efficacy, are not easy to take out and other adverse events.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible fixing device for long tubular fracture to it has at least one kind of problem to solve current long diaphysis fracture fixation.

The specific scheme is as follows:

a flexible fixing device for long tubular fracture comprises a wire ring and a wire ring connector, wherein the middle part of the wire ring is a tubular section with a channel arranged along the axial direction, the middle part of the tubular section is provided with an opening part communicated with the channel, the two axial ends of the tubular section are respectively connected with a first wire part and a second wire part, the free end of the first wire part penetrates into the channel and penetrates out of the opening part, so that the axial end of the tubular section forms a wire ring head end of a closed loop, the second wire part forms a wire ring tail end of an open loop at the other axial end of the tubular section, and the free end of the second wire part can sequentially penetrate through the closed loop of the wire ring head end and the channel and then penetrates out of the opening part; the wire loop connecting piece comprises a plate body, wherein at least two wire passing holes are formed in the plate body at intervals; the tubular section of the wire loop sequentially passes through the at least two wire through holes, and the opening part of the tubular section is positioned between the at least two wire through holes.

Further, the wire loop is a rope body formed by weaving polyethylene suture.

Furthermore, the wire ring connecting piece is also provided with a screw hole.

Further, the wire loop connector is made of a titanium alloy material.

Furthermore, the pull wire also comprises a pull wire, wherein the tail end of the pull wire is provided with a hook ring, and the hook ring can be used for pulling the free end of the second wire part, so that the pull wire passes through the wire passing hole on the wire ring connecting piece and pulls the free end of the second wire part to pass through the channel and pass out from the opening part.

Further, the pull wire can be removed after the procedure is completed.

Furthermore, the cross section of the traction wire is circular or flat.

Furthermore, the section of the wire ring is circular or flat.

The utility model provides a pair of a flexible fixation device for long tubular fracture has following advantage compared with the prior art: the wire loop of the flexible fixing device provided by the utility model is an adjustable, self-locking and knotless stretchable structure, the length of the stretchable structure is adjustable, a doctor is allowed to adjust in real time according to the actual condition of a patient, and the pressure of the fixing device acting on a bone block is minimized; in addition, because the wire loop is formed by knitting polyethylene suture, the fracture end can be effectively stabilized, and callus growth is promoted; but also avoids the problems of wound surface pollution or cross infection of medical staff caused by the puncture of gloves during winding and cutting caused by metal cables such as steel wires and the like, and ensures the safety of the medical staff and patients.

Drawings

Fig. 1 shows a schematic view of a flexible fixture.

Figure 2 shows a schematic cross-sectional view of a flexible fixture.

Fig. 3 shows a schematic view of a flexible fixation device in use at the fracture end.

Fig. 4 shows a schematic view of a one-time encircling fixation of a flexible fixation device.

Figure 5 shows a schematic view of a secondary cross wrap securement of a flexible securement device.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, the present embodiment provides a flexible fixation device for long tubular fractures, comprising a wire loop 1 and a wire loop connector 2.

The adjustable self-locking knotless flexible structure of the wire loop 1 is a rope body formed by weaving ultra-high molecular polyethylene suture, and the adjustable self-locking knotless flexible structure not only can be beneficial to a tension structure of the polyethylene suture to stabilize a fracture end, but also can effectively promote callus growth. The middle part of the wire ring 1 is a tubular section 11 with a channel arranged along the axial direction, the middle part of the tubular section 11 is provided with an opening part 111 communicated with the channel, the two axial ends of the tubular section 11 are respectively connected with a first wire part 12 and a second wire part 13, the free end of the first wire part 12 penetrates into the channel and penetrates out from the opening part 111, thus the axial end of the tubular section 11 forms the wire ring head end of the closed loop 121, the second wire part 13 forms the wire ring tail end of the open loop at the other axial end of the tubular section 11, and the free end of the second wire part 13 can sequentially penetrate through the closed loop 121 at the wire ring head end and penetrate out from the opening part 111 after the channel, thereby the fracture part can be hooped and fixed.

The wire loop connector 2 comprises a plate 20, the plate 20 having a good strength and being typically made of a material compatible with the human body, such as titanium alloy. The plate body 20 is provided with at least two wire through holes 21 arranged at intervals, the tubular section 11 of the wire ring 1 sequentially passes through the at least two wire through holes 21, the opening part 111 of the tubular section 11 is positioned between the at least two wire through holes 21, and after the free ends of the first wire part 12 and the second wire part 13 of the wire ring 1 extend out of the opening part 111, the degree of tightness of tightening the fracture part can be adjusted through the extending length of the free ends, and meanwhile, the knotless self-locking of the wire ring is realized.

In the present embodiment, the wire loop connector 2 is further provided with a screw hole 22, through which screw hole 22 the wire loop connector 2 is anchored on the bone of the patient to avoid the wire loop 1 from slipping and failing in the patient.

In this embodiment, a pulling wire 3 is further included, the tail end of the pulling wire 3 has a hook ring 31, the hook ring 31 is used to pull the free end of the second wire portion 13, so that the pulling wire ring 1 can conveniently pass through the wire ring connector 2 and the free end of the second wire portion 13 can conveniently pass through the channel and pass out from the opening, and the pulling wire 3 can be removed after the operation is finished.

Referring to fig. 3-5, when the flexible fixing device provided by the present embodiment is used in operation, the second wire portion 13 of the wire loop 1 is sequentially threaded through the two wire-passing holes 21 of the wire loop connector 2, then the second wire portion 13 is threaded into the closed loop 121 of the first wire portion 12 after passing around the fracture site, then the second wire portion 13 is pulled out from the opening of the tubular segment 11 in the direction of the arrow in fig. 3 by the hook ring 31 of the traction wire 3, and finally the fracture end is stabilized after being tightened by the tightener, the fixed schematic view is shown in fig. 4 and 5, wherein the second wire portion 13 may be looped once as shown in fig. 4, or may be looped many times as shown in fig. 5. The wire loop coupling 2 can be selected according to the actual situation in the operation whether it is locked on the bone of the patient by means of the locking nail.

The wire loop of the flexible fixation device provided by the embodiment is an adjustable, self-locking, knotless, stretchable structure, the stretchable structure is adjustable in length, a doctor is allowed to adjust in real time according to the actual condition of a patient, and the pressure of the fixation device on a bone block is minimized; in addition, because the wire loop is formed by knitting polyethylene suture, the fracture end can be effectively stabilized, and callus growth is promoted; but also avoids the problems of wound surface pollution or cross infection of medical staff caused by the puncture of gloves during winding and cutting caused by metal cables such as steel wires and the like, and ensures the safety of the medical staff and patients.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A flexible fixation device for long tubular fractures, characterized by: the wire loop connector comprises a wire loop and a wire loop connector, wherein the middle part of the wire loop is a tubular section with a channel arranged along the axial direction, the middle part of the tubular section is provided with an opening part communicated with the channel, the two axial ends of the tubular section are respectively connected with a first wire part and a second wire part, the free end of the first wire part penetrates into the channel and penetrates out of the opening part, so that the axial end of the tubular section forms a wire loop head end of a closed loop, the second wire part forms a wire loop tail end of an open loop at the other axial end of the tubular section, and the free end of the second wire part can sequentially penetrate through the closed loop at the wire loop head end and the channel and then penetrates out of the opening part; the wire loop connecting piece comprises a plate body, wherein at least two wire passing holes are formed in the plate body at intervals; the tubular section of the wire loop sequentially passes through the at least two wire through holes, and the opening part of the tubular section is positioned between the at least two wire through holes.

2. The flexible fixture of claim 1, wherein: the wire loop is a rope body formed by weaving polyethylene suture.

3. The flexible fixture of claim 1, wherein: the wire ring connecting piece is also provided with a screw hole.

4. The flexible fixture of claim 1, wherein: the wire loop connector is made of a titanium alloy material.

5. The flexible fixture of claim 1, wherein: the pull wire is characterized by further comprising a pull wire, wherein the tail end of the pull wire is provided with a hook ring, and the hook ring can be used for pulling the free end of the second wire part so as to lead the pull wire ring to pass through the wire passing hole on the wire ring connecting piece and pull the free end of the second wire part to pass through the channel and penetrate out of the opening part.

6. The flexible fixture of claim 5 wherein: the pull wire can be removed after the procedure is completed.

7. The flexible fixture of claim 5, wherein: the cross section of the traction wire is round or flat.

8. The flexible fixture of claim 1, wherein: the section of the wire ring is circular or flat.