CN203677239U

CN203677239U - Guider applied to patella fracture reduction and fixation

Info

Publication number: CN203677239U
Application number: CN201420010023.6U
Authority: CN
Inventors: 张立杰; 吕艳丽; 冯会祥; 刘英春; 吴臣忠; 刘志功; 杨慎达
Original assignee: TIANJIN BAODI DISTRICT HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Current assignee: TIANJIN BAODI DISTRICT HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Priority date: 2014-01-08
Filing date: 2014-01-08
Publication date: 2014-07-02
Anticipated expiration: 2024-01-08

Abstract

The utility model discloses a guider applied to patella fracture reduction and fixation. The guider is composed of an arc fixed arm, an arc sliding arm, an external thread fastening needle penetrating guiding tube, a needle withdrawing guiding tube, a fixing bolt and a handle rotating nut. The two ends of the arc fixed arm formed by pressing a stainless steel square steel bar are provided with the needle withdrawing guiding tube and the external thread fastening needle penetrating guiding tube respectively. The center lines of the two tubes point to the center of the arc and are correspond to each other in parallel, and a kirschner needle is allowed to penetrate into or out of the tubes. The arc fixed arm is sleeved with the arc sliding arm, the fixing bolt penetrates through a central through hole of the arc fixed arm and a central through hole of the arc sliding arm from bottom to top, and the arc fixed arm and the arc sliding arm are fixed into a whole by screwing down the handle rotating nut. A plurality of needle penetrating through holes arranged at equal intervals are formed in the arc fixed arm and the arc sliding arm respectively from the arc faces to the two ends, so that the kirschner needle penetrates through the needle penetrating through holes. According to the guider applied to patella fracture reduction and fixation, a patella can be firmly fixed, the kirschner needle is accurately penetrated into the patella, the operation time is shortened, operation wounds are reduced, and safety and reliability are achieved. The guider can also be used for accurate special part fracture fixation for a distal humeral fracture, a talus fracture, an inferior tibiofibular screw, a tibial plateau fracture, a distal femur fracture and the like.

Description

A kind of Patella fracture reduction and fixing guider of being applied to

Affiliated technical field

This utility model relates to technical field of medical instruments, particularly relates to a kind of Patella fracture reduction and fixing guider of being applied to.

Background technology

As everyone knows, Patella fracture is comparatively common in surgery clinical treatment, need to cure by operative reduction, general operative treatment is to be fixed by penetrate Kirschner wire on patella, the fixing one technology reliably that turned out to be of classical tension band wiring, universal not by most of doctors are adopted in the treatment of Patella fracture.Although tension band wiring fixation for treatment Patella fracture is a ripe operation method, but also exist certain shortcoming, while specifically coming, be exactly in clinical concrete operation technique, Kirschner wire is squeezed into extremely difficult control of position, be easy to penetrate joint, penetrate that position is excessively shallow, excessively dark, side direction deflection, front and back deflection, thereby affect tension band fixed effect, lead to the failure and medical tangle.Although the method has the multiple skill of squeezing into Kirschner wire in treatment time for many years, but need to operate with doctor's experience completely, generally speaking not fully up to expectations, the not difficulty from basic solution practical operation, particularly in doctor young, that practical experience is less, universal this operation method exists certain suffering.How in Kirschner wire operative treatment, realizing firmly simple at fixing patella and can precisely squeeze into Kirschner wire, reducing operating difficulty, reducing operating time, reducing operation wound, is this area task urgently to be resolved hurrily.

Summary of the invention:

That the purpose of this utility model is to provide is a kind of, simple in structure, easy to use, fixing patella is firmly simple and can precisely squeeze into Kirschner wire, reduce operating difficulty be applied to Patella fracture reduction and fixing guider.

In order to achieve the above object, this utility model adopts the technical scheme of following structure: a kind of Patella fracture reduction and fixing guider of being applied to, by arc fixed arm, arc sliding arm, external screw thread is fastened into pin guide pipe, go out pin guide pipe, set bolt and rotatable handle nut composition, be characterized in, arc fixed arm is that foursquare entity rustless steel steel bar compacting forms by transverse section, in termination, arc fixed arm one end, through hole is set, in through hole, tight fit is inserted out pin guide pipe, go out pin guide pipe center and point to the center of arc of arc fixed arm, in arc fixed arm other end termination, internal thread through hole is set, internal thread through hole threaded engagement screws in external screw thread and is fastened into pin guide pipe, the end of thread points to center of arc, what external spiral was fastened into pin guide pipe is designed to horizontal flat handle without the end of thread, external screw thread is fastened into pin guide pipe centrage and to go out pin guide pipe centrage parallel corresponding, form arc fixed arm, arc fixed arm Hu Ding center arranges the central through hole to center of arc, and central through hole both sides are also provided with multiple equidistant inserting needle through holes along arcwall face to two ends, and inserting needle through hole all points to center of arc, arc sliding arm is also that foursquare entity rustless steel steel bar compacting forms by transverse section, the arc angle of arc sliding arm and the arc angle of arc fixed arm adapt, and Qi Huding center also arranges the central through hole to center of arc, and central through hole both sides are also provided with multiple equidistant inserting needle through holes along arcwall face to two ends, arc sliding arm overlays on arc fixed arm, set bolt passes from arc fixed arm and arc sliding arm central through hole from bottom to top, screwed fastening for overall to arc fixed arm and arc sliding arm by rotatable handle nut, be applied to Patella fracture reduction and fixing guider thereby form.

External screw thread described above enters pin guide pipe and goes out in the pipe of pin guide pipe to insert standard Kirschner wire, and the diameter of its guide pipe is 2-3mm.

The quantity of multiple equidistant inserting needle through holes described above is 2-8, and aperture is 1-2mm.

Use principle of the present utility model is: when after operative reduction patella, arc fixed arm is enclosed within on patella, the end of thread that makes external screw thread on arc fixed arm one end be fastened into pin guide pipe is positioned over SPP, the corresponding pin guide pipe one end that goes out is positioned over the utmost point under patella with it, utilizing horizontal flat handle to rotate external spiral enters after pin guide pipe compression patella, patella is fixed, then the endoporus guiding of utilizing machinery that Kirschner wire is fastened into pin guide pipe by external screw thread is squeezed into patella, pass from going out pin guide pipe endoporus again, realize the accurate location of Kirschner wire and squeeze into.As comminuted fracture of patella, broken bone is more, can utilize the multiple inserting needle through holes on arc fixed arm and arc sliding arm to squeeze into interim several pieces of Kirschner wires; Because arc sliding arm can be by rotating arbitrarily after the adjusting of rotatable handle nut on arc fixed arm in 360 degree, so can realize in multiple orientation and squeeze into Kirschner wire, now more accurate fixing to the broken bony process of patella, make the healing sooner of comminuted patellar.

This utility model feature is to adopt the guider with patella reset and fixture realize fixing patella and precisely squeeze into Kirschner wire.In practical operation, user can fixedly secure patella and can precisely squeeze into Kirschner wire, reduces patient and medical worker's ray exposed amount, reduces operating time, reduces operation wound, safe and reliable, has reached goal of the invention.This utility model also can be used for fracture of distal end of humerus, fracture of talus, and lower tibiofibula screw, fracture of the tibial plateau, the privileged sites such as Methods for Distal Femoral Fractures are fixing fracture precisely.

Accompanying drawing explanation:

Fig. 1 is the schematic perspective view of this utility model structure

Fig. 2 is the structural representation of arc fixed arm in Fig. 1

Fig. 3 is the structural representation of arc sliding arm in Fig. 1

Fig. 4 is the cross-sectional view that goes out pin guide pipe in Fig. 1

Fig. 5 is that Fig. 1 China and foreign countries screw threads for fastening enters pin guide pipe structural representation

Fig. 6 is the left view of Fig. 5

The specific embodiment:

Below in conjunction with accompanying drawing in detail this utility model is described in detail, can find out structural principle of the present utility model from Fig. 1 to Fig. 6, a kind of Patella fracture reduction and fixing guider of being applied to, by arc fixed arm 1, arc sliding arm 2, external screw thread is fastened into pin guide pipe 4, go out pin guide pipe 3, set bolt 6 and rotatable handle nut 5 form, arc fixed arm 1 is that foursquare entity rustless steel steel bar compacting forms by transverse section, in arc fixed arm 1 termination, one end, through hole is set, in through hole, tight fit is inserted out pin guide pipe 3, going out pin guide pipe 3 internal diameters is 2.2mm, in pipe, can insert standard Kirschner wire, go out pin guide pipe 3 centers and point to the center of arc of arc fixed arm 1, in arc fixed arm 1 other end termination, internal thread through hole is set, internal thread through hole threaded engagement screws in external screw thread and is fastened into pin guide pipe 4, it is also 2.2mm that external screw thread is fastened into pin guide pipe 4 internal diameters, be threaded in the pipe of pin guide pipe 4 and can insert standard Kirschner wire, its end of thread points to center of arc, what external spiral was fastened into pin guide pipe 4 is designed to horizontal flat handle without the end of thread, external screw thread is fastened into pin guide pipe 4 centrages and to go out pin guide pipe 3 centrages parallel corresponding, form arc fixed arm 1, arc fixed arm 1 Hu Ding center arranges the central through hole to center of arc, and central through hole both sides are also provided with 6 equidistant inserting needle through holes 7 along arcwall face to two ends, and inserting needle through hole 7 diameters are 1.2mm, and centrage points to center of arc, arc sliding arm 2 is also that foursquare entity rustless steel steel bar compacting forms by transverse section, the arc angle of arc sliding arm 2 and the arc angle of arc fixed arm 1 adapt, Qi Huding center also arranges the central through hole to center of arc, and central through hole both sides are provided with 6 equidistant inserting needle through holes 8 along arcwall face to two ends, inserting needle through hole 8 diameters are also 1.2mm, and centrage points to center of arc, arc sliding arm 2 overlays on arc fixed arm 1, set bolt 6 passes from arc fixed arm 1 and arc sliding arm 2 central through holes from bottom to top, screwed fastening for overall to arc fixed arm 1 and arc sliding arm 2 by rotatable handle nut 5, be applied to Patella fracture reduction and fixing guider thereby form.

Claims

1. one kind is applied to Patella fracture reduction and fixing guider, by arc fixed arm (1), arc sliding arm (2), external screw thread is fastened into pin guide pipe (4), go out pin guide pipe (3), set bolt (6) and rotatable handle nut (5) composition, it is characterized in that: arc fixed arm (1) is that foursquare entity rustless steel steel bar compacting forms by transverse section, in arc fixed arm (1) termination, one end, through hole is set, in through hole, tight fit is inserted out pin guide pipe (3), go out pin guide pipe (3) center and point to the center of arc of arc fixed arm, in arc fixed arm (1) other end termination, internal thread through hole is set, internal thread through hole threaded engagement screws in external screw thread and is fastened into pin guide pipe (4), the end of thread points to center of arc, what external spiral was fastened into pin guide pipe (4) is designed to horizontal flat handle without the end of thread, external screw thread is fastened into pin guide pipe (4) centrage and to go out pin guide pipe centrage parallel corresponding, form arc fixed arm (1), arc fixed arm (1) Hu Ding center arranges the central through hole to center of arc, central through hole both sides are also provided with multiple equidistant inserting needle through holes (7) along arcwall face to two ends, inserting needle through hole (7) all points to center of arc, arc sliding arm (2) is also that foursquare entity rustless steel steel bar compacting forms by transverse section, the arc angle of the arc angle of arc sliding arm (2) and arc fixed arm (1) adapts, Qi Huding center also arranges the central through hole to center of arc, and central through hole both sides are also provided with multiple equidistant inserting needle through holes (8) along arcwall face to two ends, arc sliding arm (2) overlays on arc fixed arm (1), set bolt (6) passes from arc fixed arm (1) and arc sliding arm (2) central through hole from bottom to top, screwed fastening for overall to arc fixed arm (1) and arc sliding arm (2) by rotatable handle nut (5), be applied to Patella fracture reduction and fixing guider thereby form.

2. Patella fracture reduction according to claim 1 and fixing guider, it is characterized in that: described external screw thread enters pin guide pipe (4) and go out in the pipe of pin guide pipe (3) to insert standard Kirschner wire, and the diameter of its guide pipe is 2-3mm.

3. Patella fracture reduction according to claim 1 and fixing guider, the quantity of described equidistant inserting needle through hole (7,8) is 2-8, aperture is 1-2mm.