CN213910428U - Shear type ultrasonic knife - Google Patents
Shear type ultrasonic knife Download PDFInfo
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- CN213910428U CN213910428U CN202022743227.9U CN202022743227U CN213910428U CN 213910428 U CN213910428 U CN 213910428U CN 202022743227 U CN202022743227 U CN 202022743227U CN 213910428 U CN213910428 U CN 213910428U
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Abstract
The utility model discloses a shear type ultrasonic knife, which comprises a first knife handle and a second knife handle, wherein the first knife handle is hinged with the second knife handle, a first elastic sheet is arranged at the inner side of the first knife handle, a second elastic sheet is arranged at the inner side of the second knife handle, the first elastic sheet is abutted against the second elastic sheet, and an included angle is formed between the first elastic sheet and the second elastic sheet; when the first knife handle and the second knife handle are pressed oppositely, the included angle is reduced; when the force of the first knife handle and the second knife handle which are pressed oppositely disappears, the included angle is self-adaptively enlarged and reset under the action of elastic force. The utility model discloses a cut formula supersound sword utilizes the elastic force of two balanced shell fragments to make two handle of a knife keep the certain distance under the condition of no external force, keeps certain aperture keeping, can not lead to operator hand fatigue because the state is unstable of keeping silent, and the location of shell fragment is more convenient than the spring, and the elastic force between the shell fragment is difficult for becoming invalid, is favorable to improving the security when performing the operation.
Description
Technical Field
The utility model relates to a medical instrument, concretely relates to cut formula ultrasonic knife.
Background
A scissors-type ultrasonic cutter needs to be held by an operator at the same time by a main cutter handle and an auxiliary cutter handle to control the opening and closing of a jaw of the ultrasonic cutter. In most existing scissors ultrasonic knives, when external force is not applied to the scissors ultrasonic knife, the state of a jaw is not fixed, in the operation process, an operator needs to apply certain force to control the state of the jaw, if the jaw is not kept in an open state when the jaw is required to be opened, the tissue which does not need to be treated can be damaged, in some complex and fine operations which need frequent cutting or blood coagulation for a long time, the operator repeatedly opens and closes the jaw, and the operation effect is likely to be influenced due to hand fatigue; the utility model provides a current formula ultrasonic knife of cutting sets up compression spring between two handle of a knife, comes opening and shutting of auxiliary control jaw through compression spring, can avoid keeping silent because of the tired self-closure of hand, need press two handle of a knife in opposite directions just to make and keep silent closed, and theoretically, the operation security is higher, but the installation that nevertheless compression spring is difficult reliable is fixed between two handle of a knife, and opens and shuts the back compression spring and take place the dislocation very likely repeatedly, leads to compression spring inefficacy, and the operation security is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to optimize an existing scissors-type ultrasonic scalpel to improve the safety of the operation.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a shear type ultrasonic knife comprises a first knife handle and a second knife handle, wherein the first knife handle is hinged with the second knife handle, a first elastic sheet is arranged on the inner side of the first knife handle, a second elastic sheet is arranged on the inner side of the second knife handle, the first elastic sheet is abutted against the second elastic sheet, and an included angle is formed between the first elastic sheet and the second elastic sheet; when the first knife handle and the second knife handle are pressed oppositely, the included angle is reduced; when the force of the first knife handle and the second knife handle which are pressed oppositely disappears, the included angle is self-adaptively enlarged and reset under the action of elastic force.
Optionally, the first elastic sheet has a first fixed end fixed on the first blade handle and a first movable end abutting against the second elastic sheet; the second elastic sheet is provided with a second fixed end fixed on the second knife handle and a second movable end abutted against the first elastic sheet, wherein the first elastic sheet and the second elastic sheet are in a long strip shape, and the first movable end is abutted against the second movable end.
Optionally, the first movable end is provided with an opening for the second movable end of the second elastic sheet to be embedded and leaned against.
Optionally, the width of the second movable end is gradually reduced, so that the second movable end forms a sharp corner embedded in the opening.
Optionally, first expansion end and second expansion end all have a plurality of teeth, and adjacent tooth spare forms the opening, makes first expansion end and second expansion end all are comb-tooth form, the embedding of the tooth one-to-one of first expansion end individual in the opening of second expansion end, the embedding of the tooth one-to-one of second expansion end in the opening of first expansion end.
Optionally, the first movable end is fixedly connected with the second movable end, so that the first elastic sheet and the second elastic sheet jointly form a bent elastic sheet taking the included angle as a bending angle.
Optionally, the first fixing end is fastened to the first tool handle through a screw, and the second fixing end is fastened to the second tool handle through a screw.
Optionally, the first fixing end is welded to the first tool shank, and the second fixing end is welded to the second tool shank.
Optionally, the first elastic sheet and the second elastic sheet are both arc-shaped elastic sheets, the first elastic sheet is bent towards the direction of the second elastic sheet, and the second elastic sheet is bent towards the direction of the first elastic sheet.
Optionally, the first elastic piece comprises a first installation part fixed on the inner side of the first knife handle in an attached mode and a first bending part forming an included angle with the first installation part, the second elastic piece comprises a second installation part fixed on the inner side of the second knife handle in an attached mode and a second bending part forming an included angle with the second installation part, and the included angle is formed between the first bending part and the second bending part.
The utility model discloses a cut formula supersound sword utilizes the elastic force of two balanced shell fragments to make two handle of a knife keep the certain distance under the condition of no external force, keeps certain aperture keeping, can not lead to operator hand fatigue because the state is unstable of keeping silent, and the location of shell fragment is more convenient than the spring, and the elastic force between the shell fragment is difficult for becoming invalid, is favorable to improving the security when performing the operation.
Drawings
FIG. 1 is a schematic view of a scissors ultrasonic knife according to the present invention with the jaws open;
FIG. 2 is a schematic view of the scissors ultrasonic knife of the present invention with the jaws closed;
fig. 3 is a schematic structural diagram of an exemplary structure of the first resilient piece and the second resilient piece;
fig. 4 is a schematic structural view of another exemplary structure of the first resilient piece and the second resilient piece;
fig. 5 is a schematic structural view of another exemplary structure of the first resilient piece and the second resilient piece;
part number description:
a first blade shank 1;
a second handle 2;
the first elastic sheet 3, the opening 301, the first mounting portion 31 and the first bending portion 32;
the second elastic sheet 4, the teeth 401, the second mounting part 41 and the second bending part 42;
first stiff end A, first expansion end B, second stiff end C, second expansion end D, keep silent E.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
With reference to fig. 1 to 5, the utility model discloses a cut formula ultrasonic knife, including first handle of a knife 1 and second handle of a knife 2, first handle of a knife 1 and second handle of a knife 2 are articulated, the inboard of first handle of a knife 1 is provided with first shell fragment 3, be provided with second shell fragment 4 on the inboard of second handle of a knife 2, first shell fragment 3 with second shell fragment 4 offsets, just first shell fragment 3 with form the contained angle between the second shell fragment 4.
When the jaw E of the shear type ultrasonic knife needs to be closed, the elastic force of the first elastic sheet 3 and the second elastic sheet 4 is overcome by pressing the first knife handle 1 and the second knife handle 2 oppositely, so that the included angle is reduced; on the contrary, when the jaw E is not required to be closed, the first knife handle 1 and the second knife handle 2 are released, so that the opposite acting force of the first knife handle 1 and the second knife handle 2 disappears, the elastic force of the first elastic sheet 3 and the second elastic sheet 4 enables the included angle to be self-adaptively enlarged and reset, and the jaw E is opened along with the elastic force.
The utility model discloses a cut formula supersound sword need not keep silent under the closed condition, the elastic force of first shell fragment and second shell fragment can make keeping silent and keep certain aperture all the time, and need not the operator application of force and keep the aperture of keeping silent, and the operator is difficult for taking place the tired situation of hand, is favorable to avoiding the tired effect of hand influence, and the location of shell fragment is simpler, reliable than the spring, security when being favorable to improving the operation.
Specifically, referring to fig. 3 to 5, the first elastic sheet 3 and the second elastic sheet 4 are in a strip shape, and the first elastic sheet 3 has a first fixed end a fixed on the first tool holder 1 and a first movable end B abutting against the second elastic sheet 4; the second elastic sheet 4 has a second fixed end C fixed on the second handle 2 and a second movable end D abutting against the first elastic sheet 3, wherein the first movable end B abuts against the second movable end D.
In some embodiments, referring to fig. 3, the first movable end B is provided with an opening 301 for the second movable end D of the second elastic piece 4 to be inserted and abutted. In fig. 3, the width of the second movable end D is gradually decreased, so that the second movable end D forms a sharp corner fitting into the opening 301. When the jaw E is required to be closed, the second movable end D is clamped into the opening 301 of the first movable end B, when the opening degree of the jaw E is small, the scream of the second movable end D always slides in the opening 301 and abuts against the bottom edge of the opening 301, when the opening degree of the jaw E is large, the second movable end D can also withdraw from the opening 301, the scissor-type ultrasonic knife is beneficial to operation stability, the maximum opening degree of the jaw E cannot be influenced by the two elastic sheets, the strength of the first movable end B and the strength of the second movable end D are also sufficient, and the non-recoverable deformation cannot easily occur.
In other embodiments, referring to fig. 4, the first movable end B and the second movable end D each have a plurality of teeth 401, and the adjacent teeth 401 form an opening 301, so that the first movable end B and the second movable end D each have a comb-shaped tooth shape, the teeth of the first movable end B are embedded into the openings of the second movable end D one by one, and the teeth of the second movable end D are embedded into the openings of the first movable end B one by one.
In still other embodiments, referring to fig. 5, the first movable end B and the second movable end D are fixedly connected, so that the first elastic sheet 3 and the second elastic sheet 4 form a bent elastic sheet with the included angle as a bending angle, and at this time, the maximum opening degree of the jaw E is affected by the two elastic sheets.
In some embodiments, the first fixing end a is fastened to the first tool shank 1 by a screw, and the second fixing end C is fastened to the second tool shank 2 by a screw. In an actual implementation process, the first fixing end a and the second fixing end C may also be fixed on the first tool shank 1 and the second tool shank 2 correspondingly in a welding manner.
In some embodiments, referring to fig. 3 and 4, the first elastic sheet 3 and the second elastic sheet 4 are both arc-shaped elastic sheets, the first elastic sheet 3 bends toward the second elastic sheet 4, and the second elastic sheet 4 bends toward the first elastic sheet 3. In other embodiments, referring to fig. 5, the first elastic piece 3 includes a first mounting portion 31 fixed on the inner side of the first handle 1 and a first bending portion 32 forming an included angle with the first mounting portion 31, and the second elastic piece 4 includes a second mounting portion 41 fixed on the inner side of the second handle 2 and a second bending portion 42 forming an included angle with the second mounting portion 41, wherein the included angle is formed between the first bending portion 32 and the second bending portion 42. No matter the two elastic sheets adopt arc-shaped elastic sheets or are respectively bent, the movable ends of the first elastic sheet 3 and the second elastic sheet 4 can be contacted or linked, and the first elastic sheet 3 and the second elastic sheet 4 can be reliably abutted.
Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a cut formula supersound sword, includes first handle of a knife and second handle of a knife, first handle of a knife and second handle of a knife are articulated, its characterized in that: a first elastic sheet is arranged on the inner side of the first knife handle, a second elastic sheet is arranged on the inner side of the second knife handle, the first elastic sheet abuts against the second elastic sheet, and an included angle is formed between the first elastic sheet and the second elastic sheet;
when the first knife handle and the second knife handle are pressed oppositely, the included angle is reduced; when the force of the first knife handle and the second knife handle which are pressed oppositely disappears, the included angle is self-adaptively enlarged and reset under the action of elastic force.
2. The scissors ultrasonic blade of claim 1, wherein:
the first elastic sheet is provided with a first fixed end fixed on the first knife handle and a first movable end abutted against the second elastic sheet;
the second elastic sheet is provided with a second fixed end fixed on the second knife handle and a second movable end abutted against the first elastic sheet;
the first elastic sheet and the second elastic sheet are in strip shapes, and the first movable end abuts against the second movable end.
3. The scissors ultrasonic blade of claim 2, wherein: the first movable end is provided with an opening for the second movable end of the second elastic sheet to be embedded and leaned against.
4. The scissors ultrasonic blade of claim 3, wherein: the width of the second movable end is gradually reduced, so that a sharp corner embedded into the opening is formed at the second movable end.
5. The scissors ultrasonic blade of claim 2, wherein: first expansion end and second expansion end all have a plurality of teeth, and adjacent tooth spare forms the opening, makes first expansion end and second expansion end all are comb-tooth form, the embedding of the tooth one-to-one of first expansion end individual in the opening of second expansion end, the embedding of the tooth one-to-one of second expansion end in the opening of first expansion end.
6. The scissors ultrasonic blade of claim 2, wherein: the first movable end is fixedly connected with the second movable end, so that the first elastic sheet and the second elastic sheet jointly form a bent elastic sheet taking the included angle as a bending angle.
7. The scissors ultrasonic blade of claim 2, wherein: the first fixing end is fastened on the first knife handle through a screw, and the second fixing end is fastened on the second knife handle through a screw.
8. The scissors ultrasonic blade of claim 2, wherein: the first fixing end is welded on the first knife handle, and the second fixing end is welded on the second knife handle.
9. The scissors ultrasonic blade of claim 1, wherein: the first elastic sheet and the second elastic sheet are both arc-shaped elastic sheets, the first elastic sheet is bent towards the direction where the second elastic sheet is located, and the second elastic sheet is bent towards the direction where the first elastic sheet is located.
10. The scissors ultrasonic blade of claim 1, wherein:
the first elastic sheet comprises a first mounting part which is attached and fixed on the inner side of the first knife handle and a first bending part which forms an included angle with the first mounting part,
the second elastic sheet comprises a second mounting part which is fixedly attached to the inner side of the second knife handle and a second bending part which forms an included angle with the second mounting part,
wherein the included angle is formed between the first bending part and the second bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022743227.9U CN213910428U (en) | 2020-11-24 | 2020-11-24 | Shear type ultrasonic knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022743227.9U CN213910428U (en) | 2020-11-24 | 2020-11-24 | Shear type ultrasonic knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213910428U true CN213910428U (en) | 2021-08-10 |
Family
ID=77172483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022743227.9U Active CN213910428U (en) | 2020-11-24 | 2020-11-24 | Shear type ultrasonic knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213910428U (en) |
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2020
- 2020-11-24 CN CN202022743227.9U patent/CN213910428U/en active Active
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