CN210582578U

CN210582578U - Clamp head of surgical ultrasonic knife

Info

Publication number: CN210582578U
Application number: CN201920328826.9U
Authority: CN
Inventors: 罗惠君
Original assignee: Shanghai Shengzhe Medical Technology Co ltd
Current assignee: Shanghai Shengzhe Medical Technology Co ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-05-22
Anticipated expiration: 2029-03-11

Abstract

The utility model relates to a surgical ultrasonic knife's clamp head, including the clamp head body, and be used for installing the wear pad on the clamp head body with supersound tool bit complex, the left and right sides of wear pad is equipped with the slot respectively, the slot extends along the length direction of wear pad, the left and right sides of clamp head body is equipped with respectively with slot matched with flange, the wear pad slides through the slot and sets up on the flange and be loaded to the clamp head body, be equipped with the plectrum on the front end of clamp head body and/or the rear end, the plectrum can take place to deform and then both ends around the wear pad. The utility model discloses can prevent effectively that the wear pad from moving for tong head body side direction ground, vertically, protection supersound tool bit drops or shifts and the out of work or the cracked condition of tool bit that lead to takes place because of the wear pad.

Description

Clamp head of surgical ultrasonic knife

Technical Field

The utility model belongs to the technical field of surgery supersound sword surgical instruments, concretely relates to clamp head of surgery supersound sword.

Background

An ultrasonic surgical blade surgical instrument includes an end effector, a shaft assembly, and a handle assembly. The end effector includes an ultrasonic blade and a clamp head that is pivotable toward and away from the ultrasonic blade, thereby clamping tissue between the clamp head and the ultrasonic blade to cut and/or seal the tissue.

The prior art clamp head comprises a clamp head body and a wear-resistant sheet which is used for being matched with an ultrasonic tool bit and is arranged on the clamp head body. The wear-resistant piece is generally pasted on the clamp head body, so that the wear-resistant piece is easy to fall off due to vibration of the ultrasonic cutter head in the working process.

The patent publication CN106028979A specifically discloses a clamp arm feature for an ultrasonic surgical instrument, the clamp arm having a slot of different shape for receiving a clamp pad. The clamping pad is inserted into the clamping arm in the following way: the clamp pad is placed within the clamp arm and then the clamp arm is clamped down to snap the flange of the clamp pad within the slot, thereby securing the clamp pad to the clamp arm. The fixing method of the patent can have a good effect of fixing the clamping pad, but the clamping pad can move in the slot due to the vibration of the ultrasonic cutter head during the working process, so that the relative movement is generated.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide a surgical supersound sword clamp head, can prevent effectively that the wear pad from moving for clamp head body side direction ground, vertically, protection supersound tool bit drops or shifts out of work or the cracked condition of tool bit that leads to because of the wear pad takes place.

For solving the above technical problem, the utility model discloses a technical scheme who takes is:

the utility model provides a surgical ultrasonic knife's clamp head, including the clamp head body, and be used for installing the wear pad on the clamp head body with supersound tool bit complex, the left and right sides of wear pad is equipped with the slot respectively, the slot extends along the length direction of wear pad, the left and right sides of clamp head body is equipped with respectively with slot matched with flange, the wear pad slides through the slot and sets up on the flange and loaded the clamp head body, be equipped with the plectrum on the front end of clamp head body and/or the rear end, the plectrum can take place deformation and then both ends around the wear pad of butt.

Preferably, the flanges may be provided at intervals or continuously along the length of the bit body.

Preferably, the front end of the gripper head body is provided with a first shifting piece, and the rear end of the gripper head body is provided with a second shifting piece.

Further preferably, the first poking piece comprises a first horizontal portion and a first extending portion, the first horizontal portion is horizontally arranged, the first extending portion extends downwards, the first extending portion abuts against the front end portion of the wear-resistant piece, a protrusion is arranged on the end portion of the first horizontal portion, a first deformation space is arranged below the first horizontal portion, a groove is formed in the front portion of the wear-resistant piece, and the protrusion is inserted into the groove through deformation of the first horizontal portion.

Further preferably, the second plectrum includes the second horizontal part that the level set up and the second extension that upwards extends, and the below of second horizontal part is equipped with the second deformation space, and the second horizontal part makes the tip of second horizontal part butt in the rear end of wear-resisting piece through deformation.

Preferably, the wearpad has a non-smooth surface. Such as a serrated configuration, lugs, bead or grit blasted surfaces, and the like.

Preferably, the slot is rectangular, polygonal, circular or profiled in shape.

Preferably, the cross-sectional shape of the wear-resistant sheet is rectangular, polygonal or irregular.

The invention also provides another technical scheme that:

an ultrasonic surgical knife surgical instrument comprises the clamp head.

Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses wear pad on the tong head slides in the tong head body through the cooperation mode of slot and flange, pushes down the plectrum after sliding in target in place and fixes the wear pad in the tong head body, can prevent effectively that the wear pad from moving for tong head body side direction ground, vertically, perpendicularly, the protection supersound tool bit drops or shifts out of work or the cracked condition of tool bit that leads to and take place because of the wear pad.

Drawings

FIG. 1 is an exploded view schematically showing the structure of example 1;

FIG. 2 is a front view of FIG. 1 in combination;

FIG. 3 is a bottom view of FIG. 1 in combination;

FIG. 4 is a longitudinal section of FIG. 3;

FIG. 5 is a partial enlarged view of a portion a of FIG. 4;

FIG. 6 is a partial enlarged view of portion b of FIG. 4;

FIG. 7 is a schematic structural view of the first pick in an operating state;

FIG. 8 is a schematic structural view of the second paddle in an operating state;

FIG. 9 is a sectional view of embodiment 2;

FIG. 10 is a sectional view of embodiment 3;

FIG. 11 is a sectional view of embodiment 4;

FIG. 12 is a sectional view of embodiment 5;

wherein: 1. a clamp head body; 11. a flange; 2. a wear resistant sheet; 21. a slot; 22. a groove; 3. a first plectrum; 31. a first horizontal portion; 32. a first extension portion; 33. a first deformation space; 34. a protrusion; 4. a second plectrum; 41. a second horizontal portion; 42. a second extension portion; 43. a second deformation space.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples. For clarity of disclosure, the terms "anterior" and "posterior" are defined herein with respect to the patient. The term "anterior" refers to the location of an element closer to the patient, and the term "posterior" refers to the location of an element further from the patient. The terms "upper" and "lower" are defined herein with respect to the ultrasonic blade. The term "upper" refers to the location of an element that is further from the ultrasonic blade, and the term "lower" refers to the location of an element that is closer to the ultrasonic blade.

Example 1

The clamp head comprises a clamp head body 1 and a wear-resistant piece 2 which is used for being installed on the clamp head body 1 in a matched mode with an ultrasonic tool bit, wherein slots 21 are formed in the left side and the right side of the wear-resistant piece respectively, the slots 21 extend along the length direction of the wear-resistant piece 2, flanges 11 which are matched with the slots 21 are formed in the left side and the right side of the clamp head body 1 respectively, the wear-resistant piece 2 is arranged on the flanges 11 in a sliding mode through the slots 21 and is loaded to the clamp head body 1, and the clamp head can limit the movement of the wear-resistant piece 2 relative to the clamp head body 1 in the left-right direction.

The flanges 11 are provided at intervals along the longitudinal direction of the bit body 1.

In order to further limit the movement of the wear-resistant piece 2 relative to the clamp head body 1 in the front-back direction, the front end of the clamp head body 1 is provided with a first shifting piece 3, the rear end of the clamp head body 1 is provided with a second shifting piece 4, and the first shifting piece 3 and the second shifting piece 4 can be deformed and abut against the front end and the rear end of the wear-resistant piece 2.

The specific structure of the first pick 3 includes a first horizontal portion 31 horizontally disposed and a first extending portion 32 extending downward, a first deformation space 33 is disposed below the first horizontal portion 31, a protrusion 34 is disposed on an end portion of the first horizontal portion 31, a groove 22 is disposed on a front portion of the wear-resistant plate 2, and when the wear-resistant plate 2 slides into the caliper head body 1, the first extending portion 32 abuts against a front end portion of the wear-resistant plate 2. The first horizontal portion 31 has two states of an initial state and an operating state. When the first horizontal portion 31 is in the initial state, the first horizontal portion 31 is horizontally disposed, and when the first horizontal portion 31 is in the working state, the wear-resistant piece 2 slides into the caliper head body 1, the first horizontal portion 31 is pressed downward, the first horizontal portion 31 is deformed downward by using the first extending portion 32 as a deformation fulcrum, and the protrusion 34 is inserted into the groove 22 of the wear-resistant piece 2 to fix the front end of the wear-resistant piece 2.

The second paddle 4 includes a second horizontal portion 41 horizontally disposed and a second extending portion 42 extending upward, and a second deformation space 43 is provided below the second horizontal portion 41. The second horizontal portion 41 has two states of an initial state and an operating state. When the second horizontal portion 41 is in the initial state, the second horizontal portion 41 is horizontally disposed, and when the second horizontal portion 41 is in the working state, the wear pad 2 slides into the caliper head body 1, the second horizontal portion 41 is pressed downward, the second horizontal portion 41 is deformed downward with the second extending portion 42 as a deformation fulcrum, and the end portion of the second horizontal portion 41 abuts against the rear end of the wear pad 2 to fix the rear end of the wear pad 2.

In the present embodiment, the wear-resistant sheet 2 has a non-smooth surface, and may have a saw-toothed configuration, or may have other surfaces such as a lug, bead, or sand-blasted surface.

In the present embodiment, the shape of the slot 21 is rectangular, and may also be polygonal, circular arc or irregular.

In the present embodiment, the cross-sectional shape of the wear-resistant sheet 2 is T-shaped.

Example 2

This example differs from example 1 in that: the cross-sectional shape of the wear plate 2 of this embodiment is rectangular, and the slot 21 is composed of an upper inclined surface, a vertical surface, and a lower flat surface which are connected in sequence.

Example 3

This example differs from example 1 in that: the cross-sectional shape of the wear plate 2 of this embodiment is rectangular, and the slot 21 is composed of an upper plane, a vertical plane, and a lower inclined plane connected in this order.

Example 4

This example differs from example 1 in that: the wear plate 2 of the present embodiment has a rectangular cross-sectional shape, and the slot 21 is composed of an upper inclined surface, a vertical surface, and a lower inclined surface which are connected in this order.

Example 5

This example differs from example 1 in that: the cross-sectional shape of the wear plate 2 of this embodiment is rectangular, and the slot 21 is composed of an upper plane, a vertical plane, and a lower plane connected in this order.

The above description of the present invention is provided to help understand the method and the core idea of the present invention, and the purpose of the present invention is to allow people familiar with the art to understand the contents of the present invention and to implement the method, and thus the protection scope of the present invention cannot be limited by the above description. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a clamp head of surgical ultrasonic knife, includes clamp head body and is used for installing the wear pad on clamp head body with ultrasonic knife head complex which characterized in that: the left side and the right side of the wear-resistant piece are respectively provided with a slot, the slots extend along the length direction of the wear-resistant piece, the left side and the right side of the clamp head body are respectively provided with a flange matched with the slots, the wear-resistant piece is arranged on the flange in a sliding mode through the slots and is loaded to the clamp head body, the front end and/or the rear end of the clamp head body are/is provided with a shifting piece, and the shifting piece can deform and further abuts against the front end and the rear end of the wear-resistant piece.

2. The ultrasonic surgical blade clamp head of claim 1, wherein: the front end of the clamp head body is provided with a first shifting piece, and the rear end of the clamp head body is provided with a second shifting piece.

3. The ultrasonic surgical blade clamp head of claim 2, wherein: the first poking piece comprises a first horizontal portion and a first extending portion, the first horizontal portion is horizontally arranged, the first extending portion extends downwards, the first extending portion abuts against the front end portion of the wear-resistant piece, a protrusion is arranged on the end portion of the first horizontal portion, a first deformation space is arranged below the first horizontal portion, a groove is formed in the front portion of the wear-resistant piece, and the protrusion is inserted into the groove through deformation of the first horizontal portion.

4. The ultrasonic surgical blade clamp head of claim 2, wherein: the second poking sheet comprises a second horizontal portion and a second extending portion, the second horizontal portion is horizontally arranged, the second extending portion extends upwards, a second deformation space is arranged below the second horizontal portion, and the end portion of the second horizontal portion abuts against the rear end portion of the wear-resistant sheet through deformation of the second horizontal portion.

5. The ultrasonic surgical blade clamp head of claim 1, wherein: the wearpad has a non-smooth surface.

6. The ultrasonic surgical blade clamp head of claim 1, wherein: the slot is rectangular, polygonal, circular arc or special-shaped.