CN210541788U

CN210541788U - Patella cerclage device

Info

Publication number: CN210541788U
Application number: CN201920658805.3U
Authority: CN
Inventors: 丁浩; 丁润桢
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-05-19
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a patella cerclage device, it includes the kirschner wire, the kirschner wire alternates on the back patella fracture piece that resets, kirschner wire one end or both ends cover are equipped with the connector, the connector lower extreme alternates there is the cable, the cable is through locking the knot fastening. The utility model provides a patella cerclage device which has simple structure, convenient operation and short operation time; reduces the injury of the soft tissue of the fracture part caused by the operation and solves the defects of withdrawal of the kirschner wire, slipping out of the steel wire cerclage and the like; can also fix comminuted fracture and has wide application range.

Description

Patella cerclage device

Technical Field

The utility model relates to the field of medical equipment, specifically be a patella cerclage device.

Background

The patella is the largest seed bone of the human body, is positioned in front of the lower end of the femur, and is wide at the upper part and sharp at the lower part in the four head tendon of the femur. Patellar fracture is a common fracture in joints, and the incidence rate of patellar fracture accounts for about 1% of fractures of all parts of the body. Patellar fractures are often caused by direct external forces or sudden and intense contraction of the quadriceps femoris, which can result in loss of continuity of the knee joint device and potential patellofemoral joint disorders.

At present, methods such as cerclage, Kirschner wire tension band steel wire fixation, patella claw fixation and the like are mostly adopted for treating patella fracture. In a large number of clinical treatments, the existing surgical method has a plurality of clinical defects because the patella is an irregular bone and the fracture is easy to crush: firstly, the fracture strength of the cerclage patella is not enough, the fracture is easy to shift again, and the functional exercise cannot be performed in the early stage; secondly, the tension band fixes the fracture of the patella, the peripheral soft tissue is possibly necrotized due to the large bearing pressure in the unit area of the contact part of the tension band and the patella, and the kirschner wire inserted on the patella is easy to loosen after a long time to cause needle withdrawal, so that the recovery period is long or the recovery effect is poor; thirdly, the fixing operation of the patella claw is complex, the operation time is long, and the fixing of the comminuted fracture is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides a patella cerclage device. The operation is simple, and the operation time is short; reduces the damage to the soft tissue of the fracture part and solves the defects that the cerclage steel wire slides out from front and back and the kirschner wire retracts; can also fix comminuted fracture and has wide application range.

In order to realize the above purpose, the utility model adopts the technical scheme that: it includes the kirschner wire, the kirschner wire alternates on the patella after the fracture, be provided with the connector on the kirschner wire, the connector passes through fixing device to be fixed on the kirschner wire, the connector lower extreme alternates there is the cable, the cable passes through locking buckle locking to make kirschner wire, cable combine to become whole.

Further, the fixing device is a bolt, and the bolt fixes the connector on the Kirschner wire.

Furthermore, the locking buckle is internally designed with a through hole, the cable is inserted into the through hole of the locking buckle, and the cable and the through hole of the locking buckle are in interference fit.

The utility model has the advantages that: the structure is simple, the operation is convenient, and the operation time is short; the injury to soft tissues at the fracture part is reduced, and the incidence rate of subsequent complications is reduced; the connection is firm, the fracture is not easy to shift, the defect caused by needle withdrawal of the Kirschner wire is overcome, the patient can take a simple exercise, and the pain of the patient is relieved; can also fix comminuted fracture well, and has wide application range.

Drawings

Figure 1 is a schematic view of a cerclage apparatus.

Fig. 2 is a schematic view of a cable with a needle.

Fig. 3 is an enlarged view of the inside of the coupler.

Fig. 4 is a schematic diagram of a combiner.

The text labels in the figures are represented as: 1. a Kirschner wire; 2. a patella; 3. a combiner; 4. a cable; 5. a locking buckle; 6. and (4) bolts.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention is described in detail below, and the description in this section is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

As shown in fig. 1-4, the specific structure of the present invention is: it includes ke shi needle 1, ke shi needle 1 alternates on patella 2 after the fracture, be provided with connector 3 on the ke shi needle 1, connector 3 passes through fixing device to be fixed on ke shi

needle

1, 3 lower extremes of connector are interlude and have been had cable 4, cable 4 is the titanium alloy cable, cable 4 is locked through locking 5.

Preferably, fixing device is bolt 6, and connector 3 passes through bolt 6 lock and dies on k shi needle 1 to make k shi needle 1, cable 4 and connector 3 combine as an organic whole, can stably fix the fracture piece of patella, avoid cable 4 not hard up slippage, prevent that k shi needle 1 is not hard up, withdraw from, reduce the soft tissue irritation around the patella.

Preferably, the connector 3 and the kirschner wire 1 are matched to have a good fixing effect on the comminuted fracture of the patella 2, and the connector 3 can also separate the cable 4, so that the necrosis of soft tissues around the patella caused by tightly pressing the cable 4 on the patella is avoided.

Preferably, 5 internal design has the through-hole is detained in the locking, 4 interlude of cable are on the through-hole of 5 is detained in the locking, the through-hole that 5 is detained in cable 4 and locking adopts interference fit, can further prevent 1 pine of kirschner wire and shift to cause recovered effect not good or recovered cycle length.

The specific using process is as follows: with 1 reasonable passing of ke shi needle on patella 2 after the fracture, establish 3 covers of combiner on 1 of ke shi needle, lock combiner 3 through bolt 6, take cable 4 that has syringe needle and locking and detain 5, alternate cable 4 on combiner 3 in proper order through the syringe needle, couple together all combiners 3 backs, use the syringe needle to pass cable 4 locking and detain 5, use locking to detain 5 and fasten cable 4, it can to take k shi needle to cut cable 4 unnecessary part and ke shi needle tail end down.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are practically unlimited specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features described above can also be combined in a suitable manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. The utility model provides a patella cerclage device, it includes ke shi needle (1), its characterized in that, ke shi needle (1) alternates on patella (2) after the fracture, be provided with connector (3) on ke shi needle (1), connector (3) are fixed on ke shi needle (1) through fixing device, connector (3) lower extreme is alternate and has been had cable (4), cable (4) are detained (5) locking through locking.

2. The patella cerclage device according to claim 1, wherein the fixing means is a bolt (6), and the k-wire (1) is fixed to the coupler (3) by the bolt (6).

3. The patella cerclage device according to claim 1, wherein a through hole is designed in the locking buckle (5), the cable (4) is inserted into the through hole of the locking buckle (5), and the through holes of the cable (4) and the locking buckle (5) are in interference fit.