CN213310126U - Ultrasonic cutting blood coagulation knife head - Google Patents
Ultrasonic cutting blood coagulation knife head Download PDFInfo
- Publication number
- CN213310126U CN213310126U CN202021533761.0U CN202021533761U CN213310126U CN 213310126 U CN213310126 U CN 213310126U CN 202021533761 U CN202021533761 U CN 202021533761U CN 213310126 U CN213310126 U CN 213310126U
- Authority
- CN
- China
- Prior art keywords
- cutter
- cutter bar
- connecting end
- diameter
- ultrasonic cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Knives (AREA)
Abstract
The utility model provides an ultrasonic cutting blood coagulation sword tool bit, involves ultrasonic cutting blood coagulation sword technical field, concretely relates to in the aspect of the cutter arbor structure improvement of tool bit. The ultrasonic cutting coagulation knife solves the problems that the existing slender knife bar of the ultrasonic cutting coagulation knife is easy to disturb, the stress distribution of the knife head is uneven, and the knife head is easy to break when vibrating. The cutter comprises a connecting end, a cutter point and a cutter bar, wherein the cutter bar is arranged between the connecting end and the cutter point; the method is characterized in that: the diameter of each section of the cutter bar is according to a formula
Setting, wherein x is the distance from the current position to the connecting end, and x =0 when the current position is the position where the cutter bar and the connecting end are connected. Cutter barThe diameter of each section is improved according to a specific formula, stress of the cutter bar is changed along the periodic change of axial transmission when the cutter bar vibrates, the diameter of the cutter bar is the largest at the position where the stress reaches the maximum, and the diameter of the cutter bar is the smallest at the position where the stress is zero.
Description
Technical Field
The utility model relates to ultrasonic cutting blood coagulation sword technical field, concretely relates to in the aspect of the cutter arbor structural improvement of tool bit.
Background
The ultrasonic cutting blood coagulation knife utilizes ultrasonic energy to cut and coagulate and stop bleeding of soft tissues, and is widely applied to surgical operations due to the advantages of fast cutting, good coagulation, small side tissue damage, clear visual field in the operation, simple and convenient operation and the like.
The existing ultrasonic cutting blood coagulation knife generally comprises a knife body and a knife head connected to the knife body, wherein the knife head consists of a connecting end, a knife tip and a knife bar; the principle is as follows: the inner transducer of the cutter body converts ultrasonic electric energy into mechanical energy to generate high-frequency vibration by utilizing electrostrictive effect or magnetostrictive effect according to an electric signal output by an external host, and the cutter point is pushed to work through amplification and coupling action of the cutter bar, the cutter bar is mainly used for amplitude variation and energy transfer, the appearance of the cutter bar is in a common round rod shape, and the technical problems of the ultrasonic cutting blood coagulation cutter in practical application, such as easy disturbance, uneven stress distribution of the cutter head and easy breakage, occur when the slender cutter bar of the cutter head of the ultrasonic cutting blood coagulation cutter vibrates. Under pure longitudinal excitation, the ultrasonic blade also has significant bending vibration modes, which may cause bending and breakage of the blade tip.
SUMMERY OF THE UTILITY MODEL
To sum up, the utility model discloses a when solving the long and thin cutter arbor vibration of current ultrasonic cutting blood coagulation sword, the easy disturbance that takes place, tool bit stress distribution is inhomogeneous, easy fracture. Under pure longitudinal excitation, the ultrasonic scalpel also has obvious bending vibration modes which can cause the technical problems of bending and fracture of a scalpel head, and the ultrasonic cutting blood coagulation scalpel head is provided.
For solving the technical problem of the utility model, the technical scheme of adoption is:
a cutter head of an ultrasonic cutting blood coagulation cutter comprises a connecting end, a cutter point and a cutter rod, wherein the cutter rod is arranged between the connecting end and the cutter point; the method is characterized in that: the diameter of each section of the cutter bar is according to a formula
Setting, wherein x is the distance from the current position to the connecting end, and x =0 when the current position is the position where the cutter bar and the connecting end are connected.
As to the utility model discloses do the technical scheme who further restricts and do: the total length of the cutter bar is 280mm, the diameter of the cutter bar is 3mm at the minimum position, the diameter of the cutter bar is 4mm at the maximum position, the positions with the minimum cutter bar diameter are 10 positions, namely 0mm, 35mm, 70mm, 105mm, 140mm, 175mm, 210mm, 245mm and 280mm, of the starting position of the connecting end, and the positions with the maximum cutter bar diameter are 8 positions, namely 17.5mm, 52.5mm, 87.5mm, 122.5mm, 157.5mm, 192.5mm, 227.5mm and 262.5mm, of the starting position of the connecting end.
The utility model has the advantages that: the utility model discloses according to the amplitude and the vibration frequency characteristic of the high-frequency vibration energy of ultrasonic cutting blood coagulation sword blade output, improve the diameter size of each section position of cutter arbor according to specific formula, the cutter arbor is stress when the vibration and changes along the periodic variation of axial transmission, reaches the biggest position at stress, and the cutter arbor diameter is the biggest, and is the position of zero at stress, and the cutter arbor diameter is minimum. The utility model discloses this structure can reduce the radial displacement and the disturbance of tool bit to axial vibration is given first place to, and tool bit axial output amplitude can satisfy the needs that biological tissue cut.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and preferred embodiments of the invention.
Referring to fig. 1, the ultrasonic cutting blood coagulation knife head disclosed by the present invention comprises a connecting end 3, a knife tip 1 and a knife bar 2, wherein the knife bar 2 is arranged between the connecting end 3 and the knife tip 1; the cutter bar 2 is connected with the cutter body 4 through the connecting end 3, the diameter of each section of the cutter bar 2 is according to the formula
Setting, wherein x is the distance from the current position to the connecting end, and x =0 when the current position is the position where the cutter bar is connected with the connecting end; y is the current position diameter.
The utility model discloses preferred technical scheme does: the total length of the cutter bar is 280mm, namely the maximum value of x is 280, and the diameter of the whole cutter bar is calculated according to a formula
The minimum diameter of the cutter bar is 3mmThe diameter is 4mm at the maximum, the positions with the smallest cutter bar diameters are 10 positions with the connecting end as the starting position, namely 0mm, 35mm, 70mm, 105mm, 140mm, 175mm, 210mm, 245mm and 280mm, and the positions with the largest cutter bar diameters are 8 positions with the connecting end as the starting position, namely 17.5mm, 52.5mm, 87.5mm, 122.5mm, 157.5mm, 192.5mm, 227.5mm and 262.5 mm. The diameter of the cutter bar changes along the periodic change of axial transmission according to the stress of the cutter bar when vibrating, the diameter of the cutter bar is the largest when the stress reaches the largest position, and the diameter of the cutter bar is the smallest when the stress is zero, so that the problem that the vibration of the cutter head of the existing ultrasonic cutting coagulation cutter is easy to generate disturbance is solved.
Claims (2)
1. A cutter head of an ultrasonic cutting blood coagulation cutter comprises a connecting end, a cutter point and a cutter rod, wherein the cutter rod is arranged between the connecting end and the cutter point; the method is characterized in that: the diameter of each section of the cutter bar is according to a formula
Setting, wherein x is the distance from the current position to the connecting end, and x =0 when the current position is the position where the cutter bar and the connecting end are connected.
2. The ultrasonic cutting coagulator blade of claim 1 wherein: the total length of the cutter bar is 280mm, the diameter of the cutter bar is 3mm at the minimum position, the diameter of the cutter bar is 4mm at the maximum position, the positions with the minimum cutter bar diameter are 10 positions, namely 0mm, 35mm, 70mm, 105mm, 140mm, 175mm, 210mm, 245mm and 280mm, of the starting position of the connecting end, and the positions with the maximum cutter bar diameter are 8 positions, namely 17.5mm, 52.5mm, 87.5mm, 122.5mm, 157.5mm, 192.5mm, 227.5mm and 262.5mm, of the starting position of the connecting end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020200566481 | 2020-01-09 | ||
| CN202020056648 | 2020-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213310126U true CN213310126U (en) | 2021-06-01 |
Family
ID=76092550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021533761.0U Active CN213310126U (en) | 2020-01-09 | 2020-07-29 | Ultrasonic cutting blood coagulation knife head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213310126U (en) |
-
2020
- 2020-07-29 CN CN202021533761.0U patent/CN213310126U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107595368B (en) | Ultrasonic surgical tool bit, cutter bar and ultrasonic surgical knife | |
| CN100382768C (en) | Ultrasonic surgical instrument incorporating fluid management | |
| EP1684648B1 (en) | Ultrasonic surgical blade and instrument having a gain step | |
| CN108784786A (en) | Ultrasound knife | |
| WO2019076085A1 (en) | Transducer for ultrasonic scalpel | |
| CN204121118U (en) | A kind of high power variable-frequency ultrasound scalpel | |
| WO2018176866A1 (en) | Ultrasound bone drill bit and ultrasonic bone knife system using same | |
| CN213310126U (en) | Ultrasonic cutting blood coagulation knife head | |
| CN208640823U (en) | A kind of ultrasonic operation cutter head, knife bar and ultrasonic scalpel | |
| CN110575230B (en) | Cutter bar structure and ultrasonic scalpel comprising same | |
| CN212234595U (en) | Linear ultrasonic surgical knife bar and ultrasonic surgical instrument | |
| CN211796737U (en) | Scalpel system | |
| CN110575228B (en) | Cutter bar structure of ultrasonic scalpel and ultrasonic scalpel | |
| CN213372325U (en) | Under-mirror ultrasonic circular cutting tool bit | |
| CN108670546B (en) | Cornea cutting knife for realizing longitudinal and bending two-dimensional ultrasonic vibration by utilizing guided wave transmission | |
| CN209220425U (en) | Ultrasound knife | |
| CN202821536U (en) | Piezosurgery head | |
| CN110916765A (en) | Scalpel system | |
| CN110575229B (en) | Cutter bar structure and ultrasonic knife comprising same | |
| CN110575231B (en) | Cutter bar structure of ultrasonic knife and ultrasonic knife | |
| CN207256375U (en) | Titanium alloy ultrasonic cutting knife | |
| CN117159096A (en) | Multistage type stress weakening ultrasonic scalpel cutter bar | |
| CN214434399U (en) | Ultrasonic scalpel transducer and surgical instrument | |
| CN213129768U (en) | Ultrasonic bone knife | |
| CN215273149U (en) | Novel ultrasonic surgical knife bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |