CN213345921U

CN213345921U - Phalangeal Kirschner wire guiding fixator

Info

Publication number: CN213345921U
Application number: CN202021440451.4U
Authority: CN
Inventors: 邹继军; 沈卫民
Original assignee: Nanjing Childrens Hospital of Nanjing Medical University
Current assignee: Nanjing Childrens Hospital of Nanjing Medical University
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-06-04
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to a phalange kirschner wire guide fixer, including pointing sleeve, stationary blade and adjustment fixed screw, the stationary blade setting inside the finger sleeve and with finger shape looks adaptation, the screw rod tail end of adjustment fixed screw is inconsistent with the stationary blade after passing the finger sleeve. The utility model has the advantages that can the accurate control position and the direction of needle insertion point, the needle insertion position is accurate, has avoided the aversion of fracture end completely and has worn the damage to the tissue repeatedly, and the success rate is high once performed in the operation, can obviously improve the security of operation and shorten the operation time, greatly reduced patient's operation risk.

Description

Phalangeal Kirschner wire guiding fixator

Technical Field

The utility model relates to a kirschner wire guide fixer belongs to medical instrument technical field.

Background

The kirschner wire fixation is a common fixation method for treating fracture, the kirschner wire fixation is usually adopted for some unstable fractures, and the clinical application of the kirschner wire fixation has better effect on the fixation of short bones, irregular bones, adjacent joint fractures and trans-joint fixation. When fixing the ke shi needle, at first need install the one end of ke shi needle on the electric drill, then open the electric drill, squeeze into the skeleton that needs to fix with the ke shi needle, because it is far away to go out the distance between needle point and the fixed point, and the middle part is often crooked, lead to according to predetermined angle and the difficult assurance of the accurate ke shi needle of squeezing into in position, when the angle and the position of squeezing into are inaccurate, need extract the ke shi needle, squeeze into again, once the operation often need squeeze into many times, the vice damage has aggravated in the intangible, the blood supply has further been destroyed, the operation time has been prolonged, and then the treatment effect has been influenced. The angle and the position of the kirschner wire are difficult to master, so the one-time success rate of the kirschner wire fixing operation is low.

The trauma of hands and feet, the fracture of phalanges of fingers, the contracture of scars and the congenital malformation of hands and feet are usually fixed by using a kirschner wire. However, the current internal fixation of kirschner wires for finger (toe) bone fracture mainly depends on the experience of operators, and when the finger bone fracture or congenital malformation operation is performed, accurate kirschner wires are difficult to be made, and a satisfactory fixed position can be obtained only by conducting needle penetrating attempts back and forth for many times. However, the structure of the fingers and toes is complicated, the space of the smaller fingers and toes contains more blood vessels, nerves, flexor tendons, joint capsules, ligaments and the like, the blood vessel nerves are easily damaged by a plurality of internal fixation attempts, and if the kirschner wire passes through the tendons, ligaments and joint capsules, the tendons of the fingers and toes slide and the joint movement is limited, so that the functions of the fingers and toes are recovered poorly. It is necessary to design a finger kirschner wire fixing and assisting device to meet the requirement of solving the current problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects in the prior art, the phalangeal pin guiding fixator is provided, which is used for guiding and fixing the phalangeal pin and can realize accurate reduction of fracture.

In order to achieve the above object, the utility model provides a phalange kirschner wire guide fixer, including pointing sleeve, stationary blade and adjustment fixed screw, the stationary blade setting inside the finger sleeve and with finger shape looks adaptation, the screw rod tail end of adjustment fixed screw is inconsistent with the stationary blade after passing the finger sleeve.

The utility model discloses a fixer plays the guide effect, can be accurately fixed to finger fracture position, realizes that the disposable dress card of ke shi needle to fracture position is fixed, has improved efficiency.

Further, the finger sleeve is of a tubular structure with a narrow front part and a wide back part.

Furthermore, the side wall of the finger sleeve is provided with two through holes with internal threads, and the through holes are matched with adjusting fixing screws.

Further, the side wall of the finger sleeve is provided with two through holes, and the two through holes are arranged on the same axis.

Furthermore, the length direction of the fixing sheet is strip-shaped, and the width direction of the fixing sheet is arc-shaped.

Further, the width of the fixing sheet is gradually increased along the length direction.

By adopting the structure, the firm finger of the inner piece of the cylinder is tightly extruded by rotating the two screws, so that the kirschner wire can be vertically driven into the cylinder from the finger end by an electric drill. When the nail is driven, the tail end of the phalange of the fingertip is touched, and the Kirschner wire is driven into the phalange in parallel with the sleeve.

The utility model has the advantages that can the accurate control position and the direction of needle entering point, can fix the fracture distal end through the sleeve and fixed can not move about, make the fixing as required that the ke shi needle can be smooth, avoided the aversion of fracture end completely and worn the damage to the tissue repeatedly, the once success rate of operation is high, can obviously improve the security of operation and shorten the operation time, greatly reduced patient's operation risk.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the middle finger sleeve of the present invention.

Fig. 3 is a schematic structural view of the fixing plate and the adjusting fixing screw of the present invention.

In the figure: the finger sleeve comprises a finger sleeve body 1, a fixing piece 2, an adjusting fixing screw 3 and a through hole 4.

Detailed Description

Example one

The embodiment provides a phalangeal pin guiding fixator, and its structure is shown in fig. 1, including finger sleeve 1, stationary blade 2 and adjustment set screw 3, stationary blade 2 sets up inside finger sleeve 1 and with finger shape looks adaptation, and adjustment set screw 3's screw rod tail end is passed finger sleeve 1 back and is inconsistent with stationary blade 2.

As shown in fig. 2, the finger sleeve 1 is a tubular structure with a narrow front part and a wide back part, two through holes 4 with internal threads are arranged on the side wall of the finger sleeve 1, the two through holes 4 are arranged on the same axis, and an adjusting fixing screw 3 is arranged in cooperation with the through holes 4.

As shown in fig. 3, the fixing piece 2 has a strip shape in the length direction and an arc shape in the width direction, and the width of the fixing piece 2 gradually increases in the length direction. The left side and the right side of the fixing piece 2 have elasticity and can be firmly attached to the inner wall of the finger sleeve 1, and a positioning groove corresponding to the tail end of the screw of the adjusting fixing screw 3 is formed on the surface of the fixing piece 2.

When carrying out the operation of kirschner wire fixation, select the kirschner wire of suitable diameter as required earlier, the finger sleeve 1 of selecting suitable internal diameter according to the diameter of finger again adds supporting stationary blade 2, overlaps a dactylotheca section of thick bamboo 1 and stationary blade 2 on the finger in proper order, and rotatory adjustment set screw 3 pushes away stationary blade 2 and pushes into the finger, adopts the electric drill to squeeze into the kirschner wire perpendicularly along the terminal phalanx department of finger, and the kirschner wire advances the needle position accuracy after adopting the device.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides a phalangeal pin guide fixer which characterized in that: including finger sleeve, stationary blade and adjustment set screw, the stationary blade setting is inside at the finger sleeve and with finger shape looks adaptation, the screw rod tail end of adjustment set screw is inconsistent with the stationary blade after passing the finger sleeve.

2. The phalangeal pin guiding fixture of claim 1, wherein: the finger sleeve is of a tubular structure with a narrow front part and a wide back part.

3. The phalangeal pin guiding fixture of claim 2, wherein: the side wall of the finger sleeve is provided with two through holes with internal threads, and the through holes are matched with adjusting fixing screws.

4. A phalangeal pin guiding fixture according to claim 3, characterized by: the side wall of the finger sleeve is provided with two through holes, and the two through holes are arranged on the same axis.

5. The phalangeal pin guiding fixture of claim 4, wherein: the length direction of stationary blade is the strip, and the width direction is the arc form.

6. The phalangeal pin guiding fixture of claim 5, wherein: the width of the fixing sheet is gradually increased along the length direction.