CN212996659U

CN212996659U - Fixing structure for ultrasonic knife jaw gasket

Info

Publication number: CN212996659U
Application number: CN202020346307.8U
Authority: CN
Inventors: 张文良
Original assignee: Shanghai Shengzhe Medical Technology Co ltd
Current assignee: Shanghai Shengzhe Medical Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-04-20
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a fixing structure for a jaw gasket of an ultrasonic scalpel, which relates to the technical field of medical instruments and comprises a jaw part and a gasket part, wherein two sides of the jaw part are provided with connecting wings, one side of the jaw part, which is close to the connecting wings, is provided with a clamping groove, one end of the clamping groove, which is close to the connecting wings, is in an opening shape, the gasket part is provided with a clamping block matched with the clamping groove, and the clamping block is arranged in the clamping groove; the linking department of connecting wing and jaw spare is equipped with the boss, and the both sides that the draw-in groove was located to the boss and the open end setting that the boss is close to the draw-in groove, and gasket spare seted up with boss assorted recess, boss and recess butt, and minimum distance between the boss is less than the minimum distance between the connecting wing. Utilize the boss to form limiting displacement in the direction of gasket spare towards the draw-in groove open end to prevent that the gasket spare from by the open end roll-off of draw-in groove, simultaneously, can save the cantilever beam deformation step that is used for the gasket spare to fix among the prior art, improve the equipment yield of jaw spare production yield and jaw spare and gasket spare.

Description

Fixing structure for ultrasonic knife jaw gasket

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, it relates to a supersound sword is fixed knot structure for gasket of keeping silent.

Background

An ultrasonic scalpel is a high-frequency electrosurgical device and is mainly used for operations such as cutting biological tissues, closing blood vessels and the like.

The traditional Chinese patent with publication number CN110584751A discloses a forceps head for prolonging the service life of an ultrasonic cutting hemostatic knife, which comprises a metal jaw and a jaw cushion block, wherein the metal jaw comprises a clamping groove area arranged at the front end and an insertion area arranged at the rear end, the metal jaw is provided with a clamping groove in the clamping groove area, the jaw cushion block comprises a cushion block main body, a clamping head arranged at the tail end of the cushion block main body and matched with the insertion area in size, and a sliding block arranged on the cushion block main body and matched with the clamping groove in size, the jaw cushion block is inserted into the clamping groove of the metal jaw through the sliding block, and the clamping head of the jaw cushion block is tightly matched with the inner wall of the insertion area after the jaw cushion block is inserted in place. Therefore, the following steps are carried out: the cushion block and the jaw are fixed with each other through the T-shaped sliding block and the T-shaped clamping groove.

In the actual use process of the hemostatic knife, the cushion block is close to the rear end of the wedge-shaped cavity and has no limiting function, and the cushion block can slide out of the T-shaped clamping groove along the direction close to the wedge-shaped cavity. In addition, after the cushion block and the jaw are fixed in the prior art, the jig is used for slightly deforming the cantilever beam so as to block the cushion block and fix the cushion block in the jaw. However, due to the special process of the jaw, the density and toughness of the sintered and heat-treated steel are difficult to compare favorably with those of the traditional forged steel, and the cantilever beam structure may be fractured in the deformation process, so that the function of fixing the cushion block is lost.

SUMMERY OF THE UTILITY MODEL

To this problem in the practical application, the utility model aims to provide an supersound sword is kept silent fixed knot structure for gasket, concrete scheme is as follows:

a fixing structure for an ultrasonic knife jaw gasket comprises a jaw piece and a gasket piece, wherein connecting wings are arranged on two sides of the jaw piece, the gasket piece is installed between the connecting wings and the jaw piece, a clamping groove is formed in one side, close to the connecting wings, of the jaw piece along the length direction of the jaw piece, one end, close to the connecting wings, of the clamping groove is in an open shape, a clamping block matched with the clamping groove is arranged on the gasket piece, and the clamping block is arranged in the clamping groove;

the joint of the connecting wings and the jaw piece is provided with a boss, the boss is arranged on two sides of the clamping groove and close to the opening end of the clamping groove, the gasket piece is provided with a groove matched with the boss, the boss is abutted against the groove, and the minimum distance between the bosses is smaller than the minimum distance between the connecting wings.

Further preferably, an arc surface is arranged between one side surface of the boss departing from the connecting wing and one side surface of the boss departing from the clamping groove opening in a transition connection mode.

Further preferably, a limiting groove is formed in the bottom side of the clamping groove, the width of the limiting groove is larger than that of the clamping groove, the clamping block is matched with the limiting groove, and the clamping block is arranged in the limiting groove.

Further preferably, the fixture block and the gasket member are of an integral connecting structure.

Further preferably, the boss and the connecting wing are of an integral connecting structure.

Further preferably, the gasket member is made of an elastic material.

Compared with the prior art, the beneficial effects of the utility model are as follows:

by utilizing the gasket piece made of elastic materials, the clamping block is pressed into the clamping groove and the limiting groove by the side, close to the clamping groove, of the jaw piece so as to connect the gasket piece with the jaw piece, and the limiting groove is utilized to prevent the gasket piece from falling out from the side, deviating from the jaw piece, of the clamping groove. Wherein, through setting up the boss near the draw-in groove open end, reduced the distance between the both sides connection wing, when the gasket spare with keep silent the piece and be connected, the recess butt on boss and the gasket spare utilizes the boss to form limiting displacement at the gasket spare towards the direction of draw-in groove open end to prevent that the gasket spare from by the open end roll-off of draw-in groove, and set up through the cambered surface transitional coupling between the boss both sides face, effectively reduce the mechanical wear between boss and the gasket spare, improve the life of gasket spare. Meanwhile, due to the design of the boss, the cantilever beam deformation step for fixing the gasket piece in the prior art can be omitted, the production yield of the jaw piece and the assembly yield of the jaw piece and the gasket piece are improved, the station period is effectively shortened, and the station reject ratio is reduced.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the protruded limiting groove and the clamping groove of the present invention;

FIG. 3 is a schematic view showing the construction of a spacer member;

fig. 4 is a schematic view of the protruding boss structure of the present invention.

Reference numerals: 1. a jaw member; 2. a shim member; 3. a connecting wing; 4. a card slot; 5. a clamping block; 6. a boss; 7. a limiting groove; 8. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1, a fixing structure for a jaw gasket of an ultrasonic scalpel comprises a jaw member 1 and a gasket member 2, wherein the gasket member 2 is made of an elastic material, such as: plastic, rubber, etc. The two sides of the jaw piece 1 are provided with connecting wings 3 used for being connected with the knife handle, and the gasket piece 2 is arranged between the connecting wings 3 and the jaw piece 1.

Referring to fig. 2 and 3, a clamping groove 4 is formed in one side of the jaw piece 1 close to the connecting wing 3 along the length direction of the jaw piece 1, one end of the clamping groove 4 close to the connecting wing 3 is open, a limiting groove 7 is formed in the bottom side of the clamping groove 4, and the width of the limiting groove 7 is larger than that of the clamping groove 4, so that the clamping groove 4 and the limiting groove 7 are combined to form a T shape. Meanwhile, the gasket piece 2 is provided with a clamping block 5 which is matched with the clamping groove 4 and the limiting groove 7 and is in a T shape, and the clamping block 5 is arranged in the clamping groove 4 and the limiting groove 7 to connect the gasket piece 2 with the jaw piece 1.

For preventing that gasket spare 2 is close to the open-ended one end roll-off along draw-in groove 4, as shown in fig. 4, the linking department of connecting wing 3 and jaw spare 1 is equipped with boss 6, and boss 6 locates the both sides of draw-in groove 4 and boss 6 is close to the open end setting of draw-in groove 4, and the minimum distance between the boss 6 is less than the minimum distance between the connecting wing 3. And, the gasket 2 is seted up with boss 6 assorted recess 8 (fig. 3), when gasket 2 is connected with jaw spare 1, boss 6 and recess 8 butt. Preferably, in order to reduce the mechanical wear between the boss 6 and the gasket member 2, a cambered surface transition connection is arranged between one side surface of the boss 6 departing from the connecting wing 3 and one side surface of the boss 6 departing from the opening of the clamping groove 4.

Utilize the gasket spare 2 of elasticity material, be close to draw-in groove 4 one side by jaw spare 1 and press fixture block 5 and get into in draw-in groove 4 and spacing groove 7 in order to be connected gasket spare 2 with jaw spare 1, utilize spacing groove 7 to prevent that gasket spare 2 from falling out by the one side that draw-in groove 4 deviates from jaw spare 1. Wherein, through setting up boss 6 near the 4 open ends of draw-in groove, reduced the distance between both sides connection wing 3, when gasket spare 2 is connected with jaw spare 1, the 8 butts of recess on 6 and the gasket spare 2 of boss utilize boss 6 to form limiting displacement in the direction of gasket spare 2 towards the 4 open ends of draw-in groove to prevent that gasket spare 2 is by the open end roll-off of draw-in groove 4. And, through deviating from the side of connecting wing 3 with boss 6 and setting up to cambered surface transitional coupling between the side that boss 6 deviates from draw-in groove 4 open-ended, effectively reduce the mechanical wear between boss 6 and the gasket spare 2, improve the life of gasket spare 2. Meanwhile, due to the design of the boss 6, a cantilever beam deformation step for fixing the gasket part 2 in the prior art can be omitted, the production yield of the jaw part 1 and the assembly yield of the jaw part 1 and the gasket part 2 are improved, the station period is effectively shortened, and the station reject ratio is reduced.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A fixing structure for an ultrasonic knife jaw gasket comprises a jaw piece (1) and a gasket piece (2), wherein connecting wings (3) are arranged on two sides of the jaw piece (1), and the gasket piece (2) is installed between the connecting wings (3) and the jaw piece (1), and is characterized in that a clamping groove (4) is formed in one side, close to the connecting wings (3), of the jaw piece (1) along the length direction of the jaw piece (1), one end, close to the connecting wings (3), of the clamping groove (4) is in an open shape, a clamping block (5) matched with the clamping groove (4) is arranged on the gasket piece (2), and the clamping block (5) is arranged in the clamping groove (4);

the connecting wing (3) and the joint of the jaw piece (1) are provided with bosses (6), the bosses (6) are arranged on two sides of the clamping groove (4), the bosses (6) are close to the opening end of the clamping groove (4), grooves (8) matched with the bosses (6) are formed in the gasket piece (2), the bosses (6) are abutted to the grooves (8), and the minimum distance between the bosses (6) is smaller than the minimum distance between the connecting wings (3).

2. The fixing structure for the ultrasonic knife jaw gasket as claimed in claim 1, wherein a cambered surface transition connection is arranged between one side surface of the boss (6) departing from the connecting wing (3) and one side surface of the boss (6) departing from the opening of the clamping groove (4).

3. The fixing structure for the ultrasonic knife jaw gasket according to claim 1, wherein a limiting groove (7) is formed in the bottom side of the clamping groove (4), the width of the limiting groove (7) is larger than that of the clamping groove (4), the fixture block (5) is matched with the limiting groove (7), and the fixture block (5) is arranged in the limiting groove (7).

4. The ultrasonic blade jaw spacer fixing structure as claimed in claim 1, wherein the fixture block (5) and the spacer member (2) are an integral connecting structure.

5. The ultrasonic knife jaw gasket fixation structure as recited in claim 1, characterized in that the boss (6) and the connecting wing (3) are an integral connecting structure.

6. The ultrasonic blade jaw shim holding structure as claimed in claim 1, wherein the shim member (2) is made of an elastic material.