CN2721015Y - Special osteotome for acelabular osteotomy - Google Patents

Abstract

The utility model discloses a special osteotome for acelabular osteotomy, composed of a hand-hold handle 1 and a blade 2. The front end of the hand-hold handle 1 is provided with an arc-shaped blade clamping head 3, the front end of the arc-shaped blade clamping head 3 is provided with a blade inserting flat port 4, the front end of the blade 2 is an edge 5, and the rear end of the blade 2 is inserted into the blade inserting flat port 4 of the arc-shaped blade clamping head 3. The middle part of the rear end of the blade 2 is also provided with an n-shaped gap 6; the middle part of the hand-hold handle 1 is a hollow cavity 7, and the outer port of the hollow cavity 7 is provided with the connecting port of a suction. The special osteotome for acelabular osteotomy avoids the accident that the bone surrounding structure, the nerve and the vascular are wounded because of the over deepness of the inserting osteotome; meanwhile, the quality and speed of the surgery are enhanced.

Description

The special-purpose osteotome of acetabular bone three bone-culting operations

Technical field

This utility model relates to a kind of medical apparatus and instruments, the special-purpose osteotome of particularly a kind of acetabular bone three bone-culting operations.

Background technology

Acetabular bone three bone-culting operations are a kind of new techniques of extensively promoting in recent years, are mainly used in acetabular dysplasia or femoral head and contain the not operative treatment of congruent osteopathia.Higher to the osteotomy performance accuracy that requires ischium, pubis in this operation, particularly depth of cut is required to want accurately, cross and can damage pelvic cavity internal organs and near nerve and blood vessel deeply, so that produce accident surgery.Special-purpose osteotome is not also arranged in operation at present, general still with common osteotome, this osteotome comprises that straight knife handle and cutter head constitute, and cutter head is fixed on the end of straight knife handle, its weak point is: cutter head can not be crooked and flexible, the bending at incompatible operation feed position, the requirement of more incompatible strict control depth of cut, in addition, because this operative site often has more hemorrhage, influence surgical field of view, more than two deficiencies, had a strong impact on operation quality and operative speed.

Summary of the invention

The purpose of this utility model be to provide a kind of depth of cut adjustable, and can strict control, direction of feed is flexible, and can aspirate hemorrhage, as to improve perform the operation quality and operative speed acetabular bone three bone-culting operations special use osteotome at any time.

For reaching above purpose, the technical scheme that this utility model adopted is: the special-purpose osteotome of these acetabular bone three bone-culting operations, constitute by hand holding handle and blade, it is characterized in that establishing arcuation blade clamping head at the front end of hand holding handle, arcuation blade clamping head front end is established blade and is inserted flat mouthful, blade is a stalloy, the front end of blade is a blade, the blade that arcuation blade clamping head is inserted in the rear end of blade inserts in flat mouthful, " ∩ " v notch v is also established at middle part, rear end at blade, the middle part of hand holding handle is a hollow cavity, and the external port of hollow cavity is established the aspirator connector.This utility model is also implemented by following measure: the blade of described blade is the flat chisel shape, width is 10-30mm, when being used for the ischium osteotomy, the desirable 30mm of its width, when being used for the pubis osteotomy, the desirable 10mm of its width, the thickness of blade is 1-3mm, length and width that the blade of the width at blade rear portion and thickness and arcuation blade clamping head inserts flat mouth are identical, in the time of in arcuation blade clamping head is inserted at the blade rear portion, blade rear portion " ∩ " v notch v is connected with the hollow cavity at hand holding handle middle part, in operation, if meet the hemorrhage surgical field of view that influences, aspirator can be connected with the aspirator connector, the hollow cavity in the middle part of " ∩ " v notch v and the hand holding handle is with hemorrhage extraction; Described arcuation blade clamping head is that flat cored slab bending is made, the rear end can with the disposable one of making of hand holding handle, make of stainless steel material, the angle a of blade and hand holding handle is the 25-35 degree, the pad patchhole is established in side at arcuation blade clamping head, pad is a stalloy, pad inserts in the pad patchhole, so that blade is fixed, and but the bending direction of blade finely tunes, and when pad was inserted in the outside of blade, the angle a of blade and hand holding handle is flexible to be 25 degree, when pad was inserted in blade inboard, blade and the angle a of hand holding handle be flexible to become 35 degree.

The beneficial effects of the utility model are: compare with the solid cutter of staight shank, because blade position and hand holding handle have certain bending part, can form feed and stop, thereby the may command depth of cut, simultaneously, because blade is to be inserted in small crooked position, so depth of cut can be finely tuned, owing to be provided with hollow pipe in the hand holding handle, so can not influence surgical field of view to hemorrhage timely extraction.Therefore this utility model has avoided feed to injure the generation of accidents such as bone surrounding tissue, nerve and blood vessel excessively deeply, simultaneously, has also improved operation quality and speed.

Description of drawings

Fig. 1 looks sketch map for this utility model structure master

Fig. 2 is this utility model schematic side view.

Fig. 3 is that this utility model is along Fig. 2 A-A cross-sectional schematic.

Fig. 4 is this utility model blade schematic top plan view.

The specific embodiment

Make this utility model with reference to accompanying drawing 1,2,3,4.The special-purpose osteotome of these acetabular bone three bone-culting operations, constitute by hand holding handle 1 and blade 2, establish arcuation blade clamping head 3 at the front end of hand holding handle 1, arcuation blade clamping head 3 front ends are established blade and are inserted flat mouthful 4, and blade 2 is a stalloy, and the front end of blade 2 is a blade 5, the blade that arcuation blade clamping head 3 is inserted in the rear end of blade 2 inserts in flat mouthful 4, " ∩ " v notch v 6 is also established at middle part, rear end at blade 2, and the middle part of hand holding handle 1 is a hollow cavity 7, and the external port of hollow cavity 7 is established aspirator connector 8.The blade 5 of described blade 2 is the flat chisel shape, width is 10-30mm, when being used for the ischium osteotomy, the desirable 30mm of its width, when being used for the pubis osteotomy, the desirable 10mm of its width, the thickness of blade 5 is 1-3mm, length and width that the blade of the width at blade 2 rear portions and thickness and arcuation blade clamping head 3 inserts flat mouth 4 are identical, in the time of in arcuation blade clamping head 3 is inserted at blade 2 rear portions, blade 2 rear portions " ∩ " v notch v 6 is connected with the hollow cavity 7 at hand holding handle 1 middle part, in operation, if meet the hemorrhage surgical field of view that influences, can extract out from the hollow cavity 7 at " ∩ " v notch v 6 and hand holding handle 1 middle part; Described arcuation blade clamping head 3 is made for flat cored slab bending, the rear end can with the hand holding handle 1 disposable one of making, make of stainless steel material, blade 2 is the 25-35 degree with the angle a of hand holding handle 1, pad patchhole 9 is established in side at arcuation blade clamping head 3, pad 10 is a stalloy, pad 10 inserts in the pad patchhole 9, so that blade 2 is fixing, and but the bending direction of blade 2 finely tunes, and when pad 10 was inserted in the outside of blade 2, blade 2 is flexible with the angle a of hand holding handle 1 to be 25 degree, when pad 10 was inserted in blade 2 inboard, blade 2 and the angle a of hand holding handle 1 be flexible to become 35 degree.

Claims (2)

1, the special-purpose osteotome of a kind of acetabular bone three bone-culting operations, constitute by hand holding handle (1) and blade (2), it is characterized in that establishing arcuation blade clamping head (3) at the front end of hand holding handle (1), arcuation blade clamping head (3) front end is established blade and is inserted flat mouthful (4), the front end of blade (2) is blade (5), the blade that arcuation blade clamping head (3) is inserted in the rear end of blade (2) inserts in flat mouthful (4), " ∩ " v notch v (6) is also established at middle part, rear end at blade (2), the middle part of hand holding handle (1) is hollow cavity (7), and the external port of hollow cavity (7) is established aspirator connector (8).

2, the special-purpose osteotome of acetabular bone three bone-culting operations according to claim 1, it is characterized in that described arcuation blade clamping head (3) makes for flat cored slab bending, the rear end can with the disposable one of making of hand holding handle (1), make of stainless steel material, blade (2) is the 25-35 degree with the angle a of hand holding handle (1), establish pad patchhole (9) in the side of arcuation blade clamping head (3), pad (10) is a stalloy, and pad (10) inserts in the pad patchhole (9).