CN201123833Y

CN201123833Y - Special retaining and fixing clamp for bone surgery

Info

Publication number: CN201123833Y
Application number: CNU200720158804XU
Authority: CN
Inventors: 郭云涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-24
Filing date: 2007-12-24
Publication date: 2008-10-01
Anticipated expiration: 2017-12-24

Abstract

The utility model relates to a piece of orthopedic special holding fixed clamps, which belongs to the medical apparatus technical field. The utility model is characterized in that: the front ends of a left clamp arm and a right clamp arm are respectively provided with mutually symmetrical clamping pieces the upper sides of which are provided with skidproof folded edges; a cambered plug the outside of which is provided with a cuniform sawtooth is connected to the inner sidewall on the rear end of the left clamp arm; a through hole corresponding to the cambered plug is arranged on the right clamp arm and communicated with a hollow cavity on the tail end of the right clamp arm; a rectangular opening which is communicated with the hollow cavity is arranged on the inner sidewall of the right clamp arm; a handle passes through the rectangular opening and is connected with a pin in the hollow cavity; the front end of the pin is matched with the cuniform sawtooth on the outside of the cambered plug and the rear end of the pin is connected with a compression spring on the tail end face of the hollow cavity. The orthopedic special holding fixed clamps have the advantages that: the orthopedic special holding fixed clamps not only can not occupy large operation visual field but also can reduce stripping of periosteums, and are convenient for fixation of screws and steel plates on a borehole; the clamping pieces provided with the skidproof folded edges make the clamping firmer; the cambered plug and the pin on the rear ends of the left clamp arm and the right clamp arm fix the two clamp arms automatically, thereby being time and labor saving.

Description

The special-purpose clamping fixation clamps of bone surgery

Technical field

This utility model belongs to technical field of medical instruments, the special-purpose clamping fixation clamps of specifically a kind of bone surgery.

Background technology

At present, when extremity fracture, it is fixing to reset by screw after bone holding forceps commonly used clinically grip again, and existing bone holding forceps can be divided into two kinds of bone holder and sharp mouth reduction forceps substantially.Though the bone holder chucking power is big, be difficult for rotating, what help fracturing resets substantially, but, occupy bigger otch space, so not only influence follow-up drilling operation and screwing operation because of its volume is bigger, also need bigger periosteum stripping scope, influence the blood supply of fracture.Though and sharp mouth reduction forceps volume is little, exist chucking power little, deficiencies such as frangibility.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of simple in structure, safe and reliable, neither can occupy the too major operation visual field, can reduce again the peeling off of periosteum, be convenient to hole screwing and steel plate are fixed, and help the special-purpose clamping fixation clamps of bone surgery of postoperative fracture healing.

The purpose of this utility model is achieved in that the special-purpose clamping fixation clamps of this bone surgery is formed by bearing pin is hinged by left clamp arm and the right clamp arm that the rear end is respectively equipped with the circle of shaking hands, be respectively equipped with the holding piece that is provided with anti-skidding folding rib above symmetrical at the front end of left clamp arm and right clamp arm, connecting the arc plug that the outside has the wedge shape sawtooth on the left clamp arm rear inside wall, have on the right clamp arm and the corresponding through hole of arc plug, cavity in through hole and the right clamp arm end communicates, on the right clamp arm medial wall, have the rectangle hole that communicates with cavity, handle passes rectangle hole and links to each other with latch in the cavity, latch front end and arc plug outside wedge shape sawtooth matches, and the rear end links to each other with compression spring on being fixed on the cavity terminal surface.

Advantage of the present utility model: simple in structure, flexible and convenient to use, neither can occupy too big surgical field of view, can reduce again the peeling off of periosteum, be convenient to hole screwing and steel plate are fixed, and help the postoperative fracture healing; The holding piece that has anti-skidding folding rib has increased the contact area and the relative friction forces of gripper clamp and fracture site, makes clamping more firm; The arc plug of tong arm rear end, the left and right sides and latch make two tong arms fixing, time saving and energy saving automatically.

Description of drawings

Accompanying drawing 1 is a structure chart of the present utility model.

Accompanying drawing 2 is that A in the accompanying drawing 1 is to view.

The specific embodiment

Below in conjunction with accompanying drawing 1,2 pairs of this utility model of accompanying drawing are described in further detail: the special-purpose clamping fixation clamps of this bone surgery is respectively equipped with the left clamp arm 1 of the circle of shaking hands and right clamp arm 2 by bearing pin 3 hinged forming by the rear end, be respectively equipped with the holding piece 4 that is provided with anti-skidding folding rib above symmetrical at the front end of left clamp arm 1 and right clamp arm 2, connecting the arc plug 5 that the outside has the wedge shape sawtooth on the left clamp arm 1 rear inside wall, have on the right clamp arm 2 and arc plug 5 corresponding through holes 6, through hole 6 communicates with right clamp arm 2 terminal interior cavitys, on right clamp arm 2 medial walls, have the rectangle hole that communicates with cavity, handle 7 passes rectangle hole and links to each other with latch 8 in the cavity, latch 8 front ends match with arc plug 5 outside wedge shape sawtooth, and the rear end links to each other with compression spring 9 on being fixed on the cavity terminal surface.Spatial in order to guarantee enough grip strength and to reduce occupied otch as far as possible, the preferred 0.8---1.5cm of the width of holding piece 4, the preferred 0.3---0.7cm of the spacing of anti-skidding folding rib.

Claims

1, the special-purpose clamping fixation clamps of a kind of bone surgery, by the rear end be respectively equipped with shake hands the circle left clamp arm (1) and right clamp arm (2) by hinged the forming of bearing pin (3), the front end that it is characterized in that left clamp arm (1) and right clamp arm (2) is respectively equipped with the holding piece (4) that is provided with anti-skidding folding rib above symmetrical, connecting the arc plug (5) that the outside has the wedge shape sawtooth on left clamp arm (1) the rear inside wall, have on the right clamp arm (2) and the corresponding through hole of arc plug (5) (6), through hole (6) communicates with the terminal interior cavity of right clamp arm (2), on right clamp arm (2) medial wall, have the rectangle hole that communicates with cavity, the latch (8) that handle (7) passes in rectangle hole and the cavity links to each other, the wedge shape sawtooth in latch (8) front end and arc plug (5) outside matches, and the rear end links to each other with compression spring (9) on being fixed on the cavity terminal surface.