CN208769928U - A kind of peeling knife - Google Patents
A kind of peeling knife Download PDFInfo
- Publication number
- CN208769928U CN208769928U CN201820249189.1U CN201820249189U CN208769928U CN 208769928 U CN208769928 U CN 208769928U CN 201820249189 U CN201820249189 U CN 201820249189U CN 208769928 U CN208769928 U CN 208769928U
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- CN
- China
- Prior art keywords
- needle tube
- inner needle
- blade
- needle tubing
- peeling knife
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Abstract
The utility model provides a kind of peeling knife, including outer needle tubing, inner needle tube, it is characterized by: the outer needle tubing front is equipped with cutter groove mouth, the front end of the cutter groove mouth is equipped with outer needle tubing blade, the front end of the inner needle tube is equipped with inner needle tube blade, the inner needle tube blade is waveform, the wave period of the waveform blade of the inner needle tube is 1 or 1 or more, the outer needle tubing covers outside the inner needle tube, the inner needle tube and the outer needle tubing have a common axial line, the inner needle tube is rotationally advancing retrogressing around the axial line or retreats along the axial line straight ahead, the utility model peeling knife can prevent from failing because of tissue substance peeling knife swaging clamp phenomenon caused by effectively cutting is involved in inner needle tube and outer needle tubing crack so as to cause tissue substance, it is also possible to prevent the tearing for generating due to failing to cut off tissue substance completely The phenomenon that injury tissue, can also increase effective cutting edge length, can reduce the loss of blade, keep peeling knife more durable.
Description
Technical field
The utility model relates to a kind of peeling knife more particularly to a kind of peeling knifes for breast biopsy and biopsy system.
Background technique
The peeling knife of vacuum aided breast biopsy and biopsy system at present on the market exists and cuts when cutting lesion tissue
It cuts not exclusively, is easy to appear and tears injury tissue, the stuck rotary cutter of tissue substance, the edge of a knife is passivated and interrupts phenomena such as performing the operation.
Without blade in the cutter groove of the outer needle tubing of current peeling knife existing on the market.
The inner needle tube edge of a knife of current peeling knife existing on the market is round flat mouth or round angle, is rectilinear edge,
In the case where inner needle tube same diameter, effective cutting edge length of the wave edge of a knife of the invention is than the existing edge of a knife on the market
Blade is longer.
Utility model content
Based on the deficiencies of the prior art, inefficiency, the purpose that the present utility model is created provide a kind of peeling knife, can
To prevent from failing because of tissue substance peeling knife caused by effectively cutting is involved in inner needle tube and outer needle tubing crack so as to cause tissue substance
Swaging clamp phenomenon is also possible to prevent to increase because failing to generate due to cutting off tissue substance completely the phenomenon that tearing injury tissue
Effective cutting edge length, can reduce the loss of blade, keep peeling knife more durable.
To achieve the goals above, the utility model provides a kind of peeling knife, including outer needle tubing, inner needle tube, feature
Be: the outer needle tubing front is equipped with cutter groove mouth, and the front end of the cutter groove mouth is equipped with outer needle tubing blade, the front end of the inner needle tube
Equipped with inner needle tube blade, the inner needle tube blade is waveform, and the wave period of the waveform blade of the inner needle tube is 1
A or 1 or more, the outer needle tubing covers outside the inner needle tube, and the inner needle tube and the outer needle tubing have a common axle center
Line, the inner needle tube are rotationally advancing retrogressing around the axial line or retreat along the axial line straight ahead.
As the improvement of the utility model peeling knife, the cutter groove mouth of the outer needle tubing of the utility model peeling knife with
The both sides of axis parallel are equipped with outer needle tubing blade.
As the improvement of the utility model peeling knife, the outer needle tubing knife of the outer needle tubing of the utility model peeling knife
Sample tap is formed between the waveform blade of the inner needle tube of sword and the inner needle tube.
As the improvement of the utility model peeling knife, the waveform knife of the inner needle tube of the utility model peeling knife
The angle formed between straight line between the adjacent peaks and trough of sword, and the cross section of the outer needle tubing is α, the α degree
For more than or equal to 0 ° less than 90 °.
As the improvement of the utility model peeling knife, the waveform knife of the inner needle tube of the utility model peeling knife
The wave period of sword is 2, and the α degree is 45 °.
Compared with prior art, the utility model has the following beneficial effects: can prevent from failing because of tissue substance effectively
Cutting is involved in peeling knife swaging clamp phenomenon caused by inner needle tube and outer needle tubing crack so as to cause tissue substance, is also possible to prevent because not
Tissue substance can be cut off completely and generate the phenomenon that tearing injury tissue, effective cutting edge length can also be increased, can be dropped
The loss of low blade keeps peeling knife more durable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model peeling knife preferred embodiment.
Fig. 2 is the usage state diagram of the utility model peeling knife preferred embodiment.
Fig. 3 is the structural schematic diagram of the outer needle tubing of the utility model peeling knife preferred embodiment.
Fig. 4 is the enlarged drawing of the front end of the outer needle tubing of the utility model peeling knife preferred embodiment.
Fig. 5 is the structural schematic diagram of the inner needle tube of the utility model peeling knife preferred embodiment.
Fig. 6 is the enlarged drawing of the front end of the inner needle tube of the utility model peeling knife preferred embodiment.
Specific embodiment
The utility model peeling knife is suitable for breast biopsy and biopsy system.
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the preferred embodiment of the utility model peeling knife is described in detail.
To achieve the goals above, the utility model provides a kind of peeling knife, it is characterised in that: before the outer needle tubing 1
Portion is equipped with cutter groove mouth 1.1, and the front end of the cutter groove mouth 1.1 is equipped with outer needle tubing blade 1.1.1, and the front end of the inner needle tube 2 is equipped with
Inner needle tube blade 2.1, the inner needle tube blade 2.1 are waveform, the wave of the waveform blade 2.1 of the inner needle tube 2
Period is 32,1 set of the outer needle tubing outside the inner needle tube 2, the inner needle tube 2 and the outer needle tubing 1 have one it is common
Axial line, the inner needle tube 2 are rotationally advancing or retreat around the axial line.
In the present embodiment, the wave week of the waveform blade 2.1 of the inner needle tube 2 of the utility model peeling knife
Phase is 2, it is possible, firstly, to make 2 production technology of the inner needle tube of the utility model peeling knife relatively easy and production cost
It compares lower；Secondly, it is ensured that more stable in 2 course of work of inner needle tube；Effective cutter can finally be increased
Sword length can reduce the loss of blade, keep peeling knife more durable, and can carry out effectively cutting to tissue substance to anti-
Only tissue substance is involved in peeling knife swaging clamp phenomenon caused by the inner needle tube and the outer needle tubing crack, prevents because failing to cut completely
Disconnected tissue substance and generate the phenomenon that tearing injury tissue.
In other embodiments, the inner needle tube 2 of the utility model peeling knife along the axial line straight ahead or
It retreats.
In the present embodiment, the cutter groove mouth 1.1 of the outer needle tubing 1 of the utility model peeling knife and the axial line
Parallel both sides are equipped with outer needle tubing blade 1.1.2, and the surrounding of the notch described in this way has blade, can also increase effectively cut in this way
Cut edge length, the loss of blade can be reduced, keep peeling knife more durable, and can to tissue substance carry out effectively cutting from
And tissue substance is prevented to be involved in peeling knife swaging clamp phenomenon caused by the inner needle tube and the outer needle tubing crack, it prevents because having failed
Entirely cut off tissue substance and generate the phenomenon that tearing injury tissue.
In the present embodiment, the outer needle tubing blade 1.1.1 of the outer needle tubing of the utility model peeling knife, described outer
Sample tap is formed between needle tubing blade 1.1.2 and the waveform blade 2.1 of the inner needle tube 2.
In the present embodiment, the adjacent wave of the waveform blade 2.1 of the inner needle tube 2 of the utility model peeling knife
The angle formed between straight line between peak and trough, and the cross section of the outer needle tubing 1 is α, and the α degree is 45 °, in institute
Stating α degree is 45 °, under the premise of ceteris paribus, effective cutter of the waveform blade 2.1 of the inner needle tube 2
Sword length longest.
It is the outer needle tubing blade 1.1.1 of the outer needle tubing, described outer before the utility model peeling knife enters patient body
Notch between needle tubing blade 1.1.2 and the waveform blade 2.1 of the inner needle tube 2 is closed completely, when peeling knife enters
Patient body reaches at lesion tissue, and according to the size of patient's lesion tissue, the inner needle tube 2 is retreated, and opens the outer needle tubing
The outer needle tubing blade 1.1.1, the outer needle tubing blade 1.1.2 and the waveform blade 2.1 of the inner needle tube 2 between
The sample tap, the lumen of the inner needle tube 2 is connected to the lumen of outer needle tubing 1 at this time, under the action of vacuum, lesion tissue
Into the sample tap, under the drive of transmission system, the inner needle tube 2 is rotationally advancing around the axial line, described interior
The waveform blade 2.1 of needle tubing 2 and the outer needle tubing blade 1.1.1, the outer needle tubing blade 1.1.2 of the outer needle tubing
Cooperation under simultaneously cut lesion tissue, when the waveform blade 2.1 of the inner needle tube 2 is rotationally advancing through the outer needle
When the outer needle tubing blade 1.1 of the front end of pipe 1, lesion tissue cutting is completed, during above-mentioned cutting.
Compared with prior art, the utility model has the following beneficial effects: can prevent from failing because of tissue substance effectively
Cutting is involved in peeling knife swaging clamp phenomenon caused by inner needle tube and outer needle tubing crack so as to cause tissue substance, is also possible to prevent because not
Tissue substance can be cut off completely and generate the phenomenon that tearing injury tissue, effective cutting edge length can also be increased, can be dropped
The loss of low blade keeps peeling knife more durable.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Scope.
Claims (5)
1. a kind of peeling knife, including outer needle tubing, inner needle tube, it is characterised in that: the outer needle tubing front is equipped with cutter groove mouth, the knife
The front end of notch is equipped with outer needle tubing blade, and the front end of the inner needle tube is equipped with inner needle tube blade, and the inner needle tube blade is wave
Shape, the wave period of the waveform blade of the inner needle tube are 1 or 1 or more, and the outer needle tubing is covered in the interior needle
Pipe is outer, and the inner needle tube and the outer needle tubing have a common axial line, and the inner needle tube is before axial line rotation
It is retreated into retrogressing or along the axial line straight ahead.
2. peeling knife according to claim 1, it is characterised in that: the cutter groove mouth and the axial line of the outer needle tubing
Parallel both sides are equipped with outer needle tubing blade.
3. peeling knife according to claim 1 or 2, it is characterised in that: the outer needle tubing blade of the outer needle tubing and institute
It states and forms sample tap between the waveform blade of the inner needle tube of inner needle tube.
4. peeling knife according to claim 3, it is characterised in that: the adjacent wave of the waveform blade of the inner needle tube
The angle formed between straight line between peak and trough, and the cross section of the outer needle tubing is α, the α degree be more than or equal to
0 ° less than 90 °.
5. peeling knife according to claim 4, it is characterised in that: the wave week of the waveform blade of the inner needle tube
Phase is 2, and the α degree is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249189.1U CN208769928U (en) | 2018-02-12 | 2018-02-12 | A kind of peeling knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820249189.1U CN208769928U (en) | 2018-02-12 | 2018-02-12 | A kind of peeling knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208769928U true CN208769928U (en) | 2019-04-23 |
Family
ID=66145340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820249189.1U Active CN208769928U (en) | 2018-02-12 | 2018-02-12 | A kind of peeling knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208769928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141311A (en) * | 2018-02-12 | 2019-08-20 | 杨剑鹏 | A kind of peeling knife |
-
2018
- 2018-02-12 CN CN201820249189.1U patent/CN208769928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141311A (en) * | 2018-02-12 | 2019-08-20 | 杨剑鹏 | A kind of peeling knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200507 Address after: 510030 room 13h, No.76, Xianlie Middle Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee after: Jianke Technology (Guangzhou) Co., Ltd Address before: 528061 A 301 in Wanke City, No. 55 Yanjiang Road, Nanzhuang Town, Chancheng District, Foshan City, Guangdong Province Patentee before: Yang Jianpeng |
|
| TR01 | Transfer of patent right |