CN213345846U

CN213345846U - Finger extender

Info

Publication number: CN213345846U
Application number: CN202021985632.5U
Authority: CN
Inventors: 邹继军; 吴旎
Original assignee: Nanjing Childrens Hospital of Nanjing Medical University
Current assignee: Nanjing Childrens Hospital of Nanjing Medical University
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-04
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a finger extender, which comprises an arc-shaped fixed plate, wherein an arc-shaped chute is arranged inside the arc-shaped fixed plate along the long axis direction, one or a plurality of elongated slots are arranged on the arc-shaped fixed plate along the arc-shaped chute direction, an arc-shaped sliding plate is inserted into the arc-shaped chute and slides along the arc-shaped chute, and two ends of the arc-shaped sliding plate respectively extend out from two ends of the fixed plate, a first fixed plate is arranged at two extending ends of the arc-shaped sliding plate, a second fixed plate is arranged at a position corresponding to the elongated slots on the arc-shaped sliding plate, Kirschner wires are detachably arranged on the first fixed plate and the second fixed plate, fingers are positioned at one side of the back of the hand or at one side of the palm by the attachment of the arc-shaped fixed plate, the movement of the fingers is facilitated, and a plurality of arc-shaped sliding plates can be arranged on a single arc-shaped fixing plate, and the multi-section phalanx can be prolonged to improve the working efficiency.

Description

Finger extender

Technical Field

The utility model relates to the technical field of medical equipment, specifically a finger extender.

Background

Congenital hand deformities have now become the second birth defect in incidence after congenital heart disease. Some patients with congenital hand deformities have multiple fingers, fingers and finger loss, and some patients have dysplasia of fingers, which are characterized by short fingers or finger joint loss. Of course, in addition to congenital defects, there are also finger defects, shortness and smallness, due in part to trauma; congenital and secondary short fingers and finger joints loss can seriously affect the functions and the appearance of the hand, and the finger extender can effectively assist the extension of the fingers through the cooperation of an operation in the prior art so as to recover the functions of the hand as much as possible.

The existing finger extender is manufactured by imitating an IIizarov bracket, the bracket wraps the periphery of a finger to fix the finger, the whole instrument is heavy, the finger burden is increased, the finger activity is influenced, the adjacent finger is easily damaged, the existing finger extender is mainly used for extending a single phalanx, the traditional extension is planar extension, and angulation displacement is easily caused, so that a new finger extender is urgently needed to solve the problems.

Disclosure of Invention

The utility model provides a simple structure is light and handy, can not influence the finger extender of finger activity, can effectively solve the whole relatively heaviness of current finger extender that proposes in the above-mentioned background art, only limit to the single section extension, appear angulation deformity easily, cause the damage scheduling problem to neighbouring finger.

In order to achieve the above object, the utility model provides a following technical scheme: a finger extender comprising:

the arc-shaped fixing plate is internally provided with an arc-shaped sliding chute along the long axis direction, and the arc-shaped fixing plate is provided with one or a plurality of long grooves along the arc-shaped sliding chute direction;

fixing mechanism, including the arc slide, the arc slide is pegged graft with the arc spout to slide along the arc spout, and stretch out from the fixed plate both ends respectively at arc slide both ends, stretch out both ends at arc slide and all install first fixed plate, correspond position department with the elongated slot on the arc and install the second fixed plate, all detachably install the kirschner wire on first fixed plate and the second fixed plate.

Preferably, the arc-shaped fixing plate is attached to the fingers on one side of the back of the hand or on one side of the palm of the hand.

Preferably, the center of the arc-shaped fixing plate is provided with an elongated slot along the long axis direction.

Specifically, one or a plurality of screw holes are formed in the first fixing plate and the second fixing plate.

And a further Kirschner wire penetrates through the screw hole, a bolt is sleeved on the Kirschner wire, and the Kirschner wire is fixed on the screw hole through the bolt.

Preferably, the arc-shaped fixing plate is provided with a positioning groove at least along the long groove direction close to the second fixing plate, and the fixing screw penetrates through the positioning groove to be meshed and connected with the side edge of the second fixing plate to fix the second fixing plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization, lie in back of the hand one side or lie in palm one side at the finger through the arc fixed plate laminating, make things convenient for the finger activity, it fixes in finger both sides or parcel at finger periphery to solve current extender, when finger activity, can lead to the fact the problem of damage to neighbouring finger, the fixed three-point of passing through of kirschner wire, three-dimensional extension is reliable and stable, the plane extension has been avoided appearing aversion easily, risks such as angulation, be provided with fixed establishment, slide along the spout through the arc slide according to the demand, adjust the fixed department, easy operation is convenient, and can be according to a plurality of arc slides of actual demand mountable on single arc fixed plate, indicate the bone to the multisection simultaneously and carry out the extension operation, the work efficiency of the device is improved, the device simple structure is light.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of a finger extender according to the present invention;

FIG. 2 is a schematic view of another side of the finger extender of the present invention;

FIG. 3 is a side view of the finger extender of the present invention;

fig. 4 is a schematic structural view of the fixing mechanism of the present invention;

reference numbers in the figures: 1. an arc-shaped fixing plate; 2. an arc-shaped chute; 3. a long groove; 4. a fixing mechanism; 401. an arc-shaped sliding plate; 402. a first fixing plate; 403. a second fixing plate; 404. a screw hole; 405. a Kirschner wire; 406. a bolt; 5. positioning a groove; 6. and (4) screws.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): a finger extender comprising:

the arc-shaped fixing plate comprises an arc-shaped fixing plate 1, wherein an arc-shaped sliding chute 2 is formed in the arc-shaped fixing plate 1 along the long axis direction, and one or a plurality of long grooves 3 are formed in the arc-shaped fixing plate 1 along the arc-shaped sliding chute 2;

fixing mechanism 4, including arc slide 401, arc slide 401 pegs graft with arc spout 2 to slide along arc spout 2, and arc slide 401 both ends are stretched out from the fixed plate both ends respectively, stretch out both ends at arc slide 401 and all install first fixed plate 402, correspond position department on the arc with elongated slot 3 and install second fixed plate 403, wherein, all detachably install kirschner wire 405 on first fixed plate 402 and the second fixed plate 403.

In this embodiment, as shown in fig. 1-3, an elongated slot 3 is formed in the center of an arc-shaped fixing plate 1 along the long axis direction, during operation, a middle section of a diseased finger is cut at the side, subcutaneous tissue is separated, a blood vessel nerve bundle on the finger side is protected, periosteum is cut, a subperiosteal is stripped, a phalanx is exposed, an ultrasonic osteotome is used to cut off the middle section of the phalanx in a transverse direction, the arc-shaped fixing plate 1 is attached to a finger at the back side or the palm side, an arc-shaped sliding plate 401 is inserted into an arc-shaped sliding slot 2, so that a second fixing plate 403 is clamped into the elongated slot 3 and slides along the elongated slot 3 to both sides of the osteotomy plane, positioning slots 5 are formed in the arc-shaped fixing plate 1 along the elongated slot 3 direction, fixing screws 6 pass through the positioning slots 5 to be engaged with the side edges of the second fixing plate 403, so as to fix and lock the position of the second fixing plate 403, the kirschner wire 405 transversely penetrates through the first fixing plate 402 and longitudinally penetrates through the cortex of the metacarpal side or dorsal side phalanx, the screw holes 404 of the second fixing plate 403 are suitable for transversely inserting into the phalanx, or the kirschner wire 405 can be inserted into a plurality of screw holes 404 on the first fixing plate 402 and the second fixing plate 403, wherein, as shown in fig. 4, two or more screw holes 404 are distributed in a staggered mode, so that the situation that two kirschner wires 405 on the same side are inserted from the same bone section to cause bone fracture is avoided, a bolt 406 is sleeved on the kirschner wire 405 and is fixed on the screw holes 404 through the bolt 406, when the bones in multiple joints need to be fixed, after a plurality of fixing mechanisms 4 are installed on the arc-shaped sliding chute 2, the positions of the fixing mechanisms 4 are slowly adjusted at the speed of 1mm per day on average, and the function of prolonging the.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A finger extender, comprising:

2. A finger extender as claimed in claim 1, wherein: the arc-shaped fixing plate is attached to the fingers and positioned on one side of the back of the hand or one side of the palm.

3. A finger extender as claimed in claim 1, wherein: an elongated slot is formed in the center of the arc-shaped fixing plate along the long axis direction.

4. A finger extender as claimed in claim 1, wherein: one or a plurality of screw holes are formed in the first fixing plate and the second fixing plate.

5. The finger extender of claim 4, wherein: the Kirschner wire penetrates through the screw hole, a bolt is sleeved on the Kirschner wire, and the Kirschner wire is fixed on the screw hole through the bolt.

6. A finger extender as claimed in claim 1, wherein: and at least one edge of the arc-shaped fixing plate, which is close to the second fixing plate, is provided with a positioning groove along the direction of the long groove, and a fixing screw penetrates through the positioning groove to be meshed and connected with the side edge of the second fixing plate so as to fix the second fixing plate.