Novel fifth metacarpal bone fixing clamp

Abstract

The utility model discloses a novel fifth metacarpal bone fixing clamp which comprises a palm side clamping plate, a hand back side clamping plate and a fastening belt, the palm side clamping plate and the hand back side clamping plate are fixed through the fastening belt, the palm side clamping plate is square, the palm side clamping plate covers a third metacarpophalangeal joint, a fourth metacarpophalangeal joint, a fifth metacarpophalangeal joint and a palm side area from the bottom of a third metacarpophalangeal bone to the bottom of a fifth metacarpophalangeal bone. The side, facing the ring finger and the little finger, of the palm side clamping plate extends to the fourth proximal interphalangeal joint and the fifth middle interphalangeal joint in the finger end direction to form extending parts, the side, facing the thumb, of the palm side clamping plate is concaved inwards along a palm side thenar curve to form an thenar arc-shaped side, and the hand back side clamping plate is square. And the hand back side splint covers hand back side areas from the third, fourth and fifth metacarpophalangeal joints to the bottoms of the third, fourth and fifth metacarpophalangeal bones. The metacarpophalangeal joint rehabilitation device adopts a special structural design, is high in stability, better in metacarpophalangeal joint function activity, more beneficial to patient recovery, simple in structure, easy to operate and suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the orthopedic medical instrument technical field, and specifically relates to a novel fifth metacarpal bone fixing clamp. BACKGROUND

[0002] At present, the fifth metacarpal bone fracture with obvious angle is divided into stable fracture and unstable fracture. For stable fracture, if the palmar angle is less than 30 DEG, conservative treatment can be adopted, and when the palmar angle exceeds 30 DEG, single kirschner wire antegrade intramedullary fixation can effectively avoid the above-mentioned many drawbacks. The existing technology of conservative treatment adopts plaster fixation, and the plaster fixation has the following disadvantages: the fracture is easy to displace again, resulting in the failure of conservative treatment, especially after the swelling of the affected limb is obviously subsided, the plaster is poor in adhesion and plasticity, and often needs to be replaced, which causes the fracture to displace again when the plaster is replaced, and increases the corresponding medical expenses. The commonly used method of surgical treatment is kirschner wire fixation or intramedullary kirschner wire fixation, and plate screw internal fixation, and surgical treatment often leaves a wound, and postoperative soft tissue adhesion in the operation area affects the function of the hand. Secondly, due to the existence of kirschner needle path, the opportunity of exogenous infection is left, and the stability of kirschner wire fixation is poor.

[0003] Chinese patent discloses a fifth metacarpal bone fixing plate (application number: 201922253895.0), the fixing plate is only suitable for surgical treatment, although the stability is improved to a certain extent, but the plate internal fixation has the problems of extensive periosteum stripping, tissue damage and local hematoma removal during operation, and also has postoperative complications such as nonunion, infection, plate exposure, poor appearance, and the like, and the plate fixation needs secondary operation, increases the incidence of complications, and the patient is painful and has heavy burden. At present, there is no external non-surgical fixing appliance specially used for fifth metacarpal bone fracture. Therefore, it is very necessary to develop a fifth metacarpal bone fixing clamp which has high clamping stability, avoids fracture displacement again, has simple structure, is convenient to operate, and is suitable for external non-surgical fixation. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model aims at providing a novel fifth metacarpal bone fixing clamp.

[0005] The utility model discloses a palm and back of hand splint which is characterized by the following: the palm side splint and the back of hand splint are fixed by the fastening band, the palm side splint is square, and the palm side splint covers the palm side area from the third, fourth and fifth metacarpophalangeal joints to the bottom of the third, fourth and fifth metacarpal bones, and the edge of the palm side splint towards the ring finger and the little finger extends to the fourth proximal interphalangeal joint and the fifth middle interphalangeal joint, forming an extension part, and the edge of the palm side splint towards the thumb is concave along the palm side thenar curve, forming a thenar arc-shaped edge, the back of hand splint is square, and the back of hand splint covers the back side area from the third, fourth and fifth metacarpophalangeal joints to the bottom of the third, fourth and fifth metacarpal bones, and the surface of the palm side splint towards the palm and the surface of the back of hand splint towards the back are respectively provided with a flexible pad layer.

[0006] The fastening band can be a common bandage or other fixing band.

[0007] The human metacarpal bones are five, and are the first to the fifth metacarpal bones from the radial side to the ulnar side; the radial side and the ulnar side are medical terms known by those skilled in the art, and the palm is taken as an example, the side close to the little finger is called the ulnar side, and the side close to the thumb is called the radial side; the finger joints are the distal interphalangeal joint, the middle interphalangeal joint and the proximal interphalangeal joint from the distal end to the proximal end; it should be noted that the little finger is the small thumb, and the thumb is the big thumb.

[0008] Preferably, the palm side splint and the back of hand splint are both wooden boards, and other common materials with certain hardness in the art can also be selected, such as steel plates and hard plastic plates.

[0009] Preferably, the edge of the palm side splint away from the fingers is convexly arc-shaped, and compared with a straight edge, the convexly arc-shaped edge is beneficial to reducing the adverse effect on the hand movement.

[0010] Preferably, the back of hand splint is approximately square instead of square.

[0011] Preferably, the flexible pad layer is a cotton pad, and specifically, the flexible pad layer can be selected from other flexible materials known by those skilled in the art, such as silica gel, latex, artificial fibers and other natural fibers.

[0012] The utility model discloses a beneficial effect: the utility model discloses palm side splint adopts special structure design, and the extension can effectively prevent the fourth metacarpophalangeal joint palm flexion movement drives the fifth metacarpophalangeal joint palm flexion movement, to avoid causing the fracture reduction again displacement, the great fish tail arc shape edge corresponds the palm great fish tail curve, in ensuring that the thumb metacarpophalangeal joint can move, and the more thumb finger function of retaining the thumb finger function, protect the great fish tail muscle group, avoid the oppression injury to the great fish tail muscle group, the utility model discloses the palm side splint of special structure, the back of the hand side splint covering area precision, and the cooperation effectively promotes the fixed firmness, reduces the oppression injury, and simultaneously retains other hand movement function, compared with prior art has the steel sheet cross joint fixed, and the utility model discloses metacarpophalangeal joint function activity is better, and it is more favorable to patient recovery, the utility model discloses fills the blank in the fifth metacarpal fracture special fixture field, and the structure is simple, and easy operation is suitable for popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the side view structure schematic diagram of the utility model;

[0014] Figure 2 It is the plane structure schematic diagram of palm side splint;

[0015] Figure 3 It is the plane structure schematic diagram of back of the hand side splint;

[0016] Figure 4 It is the palm side use state structure schematic diagram;

[0017] Figure 5 It is the back of the hand side use state structure schematic diagram;

[0018] In the drawing: 1-palm side splint, 2-back of the hand side splint, 3-fastening band, 4-extension, 5-great fish tail curve, 6-great fish tail arc shape edge, 7-flexible pad layer, 8-palm side, 9-back of the hand side. DETAILED DESCRIPTION

[0019] The utility model will be further explained in connection with the embodiment and the drawing, but in any way to the utility model add restriction, based on the utility model teaching made any change or replacement, all belong to the protection scope of the utility model. EMBODIMENT

[0020] As the drawing Figures 1-5The novel fifth metacarpal bone fixing clamp of the embodiment shown comprises a palm side clamping plate 1, a back side clamping plate 2 and a fastening belt 3, the palm side clamping plate 1 and the back side clamping plate 2 are both wooden plates, the palm side clamping plate 1 and the back side clamping plate 2 are fixed through the fastening belt 3, the palm side clamping plate 1 is square, the palm side clamping plate 1 covers the palm side area from the third, fourth and fifth metacarpophalangeal joints to the bottoms of the third, fourth and fifth metacarpal bones, the side of the palm side clamping plate 1 facing the fourth and fifth fingers extends to the fourth proximal interphalangeal joint and the fifth middle interphalangeal joint in the direction of the finger end, forming an extension 4, the side of the palm side clamping plate 1 facing the thumb is concave along the palm side thenar curve 5, forming a thenar arc edge 6, the back side clamping plate 2 is square, the back side clamping plate 2 covers the back side area from the third, fourth and fifth metacarpophalangeal joints to the bottoms of the third, fourth and fifth metacarpal bones, the side of the palm side clamping plate 1 facing the palm and the side of the back side clamping plate 2 facing the back are respectively provided with a flexible pad layer 7, the flexible pad layer 7 is a cotton pad, wherein, Figure 4 、 Figure 5 are both left hands. Embodiment

[0021] The novel fifth metacarpal bone fixing clamp of the embodiment is based on the embodiment 1, wherein the side of the palm side clamping plate 1 far from the fingers is outwardly convex, the back side clamping plate 2 is approximately square instead of square, the approximately square is that the side of the back side clamping plate 2 far from the thumb (i.e. the left side of the back side clamping plate 2 of the middle hand) is outwardly convex (not shown), forming an arc edge, so as to better adapt to the edge curve of the back. Figure 5 Figure 5

[0022] The working principle and working process of the novel fifth metacarpal bone fixing clamp are as follows: the palm side clamping plate 1 is placed in the palm side area from the third, fourth and fifth metacarpophalangeal joints to the bottoms of the third, fourth and fifth metacarpal bones, the extension 4 covers the fourth proximal interphalangeal joint, the fifth proximal interphalangeal joint and the fifth middle interphalangeal joint, the thenar arc edge 6 is attached to the palm side thenar curve 5; the back side clamping plate 2 is placed in the back side area from the third, fourth and fifth metacarpophalangeal joints to the bottoms of the third, fourth and fifth metacarpal bones; the flexible pad layer 7 plays a role in improving comfort, and is more conducive to closely attaching to the hand; the hand, the palm side clamping plate 1 and the back side clamping plate 2 are fixed together through the fastening belt 3.​​

Claims

1. A new type of fifth metacarpal fixation clamp, comprising a palm side clamp plate (1), a back side clamp plate (2) and a fastening band (3), the palm side clamp plate (1) and the back side clamp plate (2) are fixed by the fastening band (3), characterized in that The palm side splint (1) is square, the palm side splint (1) covers the third, fourth, fifth metacarpophalangeal joint to the third, fourth, fifth metacarpal bottom palm side area, the palm side splint (1) extends to the fourth proximal interphalangeal joint, fifth middle interphalangeal joint at the finger end direction towards the edge of the ring finger and little finger, forming an extension (4), the palm side splint (1) towards the thumb side, along the palm side thenar curve (5) inner recessed into thenar arc edge (6), the back side splint (2) is square, the back side splint (2) covers the third, fourth, fifth metacarpophalangeal joint to the third, fourth, fifth metacarpal bottom dorsal area, the palm side splint (1) towards the palm side and the back side splint (2) towards the dorsal side are respectively provided with flexible pad layer (7).

2. The new fifth metacarpal fixation clamp according to claim 1, characterized in that The palm side splint (1), back side splint (2) are all wood board.

3. The new fifth metacarpal fixation clamp of claim 1, wherein The palm side splint (1) far away from the finger side is convex arc shape.

4. The new fifth metacarpal fixation clamp of claim 1, wherein The back side splint (2) square is replaced by approximate square.

5. The new fifth metacarpal fixation clamp according to claim 1, characterized in that The flexible pad layer (7) is cotton pad.

Images