CN109820543A - A kind of full-automatic tumour non-proliferation cell taking gun - Google Patents
A kind of full-automatic tumour non-proliferation cell taking gun Download PDFInfo
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- CN109820543A CN109820543A CN201910244590.5A CN201910244590A CN109820543A CN 109820543 A CN109820543 A CN 109820543A CN 201910244590 A CN201910244590 A CN 201910244590A CN 109820543 A CN109820543 A CN 109820543A
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Abstract
The present invention relates to a kind of full-automatic tumour non-proliferation cell taking guns, effectively solve the problem of the inconvenient easily diffusion of tumour cell sampling；Its solve technical solution be include box body, have upper end cover on box body, bottom plate can be resetted to the right by having in box body；Guide rod, three limited blocks on guide rod are fixed on bottom plate；There are left movable plate and right movable plate between limited block；There is a connecting rod in the upper end of each movable plate, and the connector of one with pintle cooperation are mounted on the left of the upper end of two connecting rods and box body；Three connectors are coaxially arranged and side open up it is fluted；Limiting device is housed between box body and bottom plate, has guide rail in box body, has sliding block on guide rail, there is the support rod that can be moved forward and backward on sliding block；Support rod front end is hinged with driving lever, and sliding block, which is moved to the left, first to drive right movable plate to the left, then drives left movable plate to the left, and then the two moves right jointly；The present invention improves the portability and safety that tumour cell punctures sampling.
Description
Technical field
The present invention relates to Biopsy field, especially a kind of full-automatic tumour non-proliferation cell taking gun.
Background technique
Biopsy needle is living tissue sampling, the medical instrument for drawing the purposes such as cell, and biopsy needle often cooperates cell taking gun together
It uses；Cell taking gun is a kind of equipment being commonly used, and when detection, the pipette tips of cell taking gun is inserted into position to be detected, are got to be checked
After surveying tissue, cell taking gun is extracted.The matched biopsy needle of semi-automatic or full automatic cell taking gun on the market generally uses at present
Internal solid needle and external hollow needle are constituted；Formed by two layers；It is applicable in extensively, safely and effectively.
However for tumour cell, especially malignant cell for, the needle of above-mentioned bilayer just not be applicable in, because sampling
When syringe needle be placed in the inside of tumour cell, when extracting sampling probe, the case where easily causing tumour cell to spread along needle track.
Therefore occur the technology of three trocars at present, i.e., solve the problems, such as this adding one layer original double-deck on the basis of.However mesh
Preceding full-automatic biopsy gun is double-deck biopsy；There is no the cell taking guns for being directed to three layers；So that three layers of needle operation is more numerous
Trivial, some three layers of needle devices especially at present on the market do not link suitably between internal two sides and outermost layer, automate
Degree is low；In sampling process, the movement of stable each layer of needle of operation is needed, is finally being extracted in batches；Increase patient's
Pain, and to technical requirements height, sampling is easily unstable.Therefore a kind of device is needed to sample specifically for tumour at present.
Summary of the invention
For above situation, to solve problems of the prior art, the purpose of the present invention is just to provide one kind entirely certainly
Dynamic tumour non-proliferation cell taking gun can effectively solve the problem of the inconvenient easily diffusion of tumour cell sampling.
Its technical solution solved be include box body, box body is equipped with the upper end cover that can be fastened；Having in box body can be along box body
The bottom plate moved left and right, bottom plate can reset to the right；It is fixedly installed with the guide rod of left and right directions on bottom plate, is fixedly installed on guide rod
The limited block of left, center, right three；It is left, in have left movable plate between two limited blocks；In, between right two limited blocks have right work
Movable plate；Two movable plates can be slided along guide rod；The upper end of each movable plate is respectively connected with a vertical connecting rod, two connecting rods
Upper end and box body on the left of be mounted on one with pintle cooperation connector；Three connector is coaxially arranged and side opens up
It is fluted；
Equipped with the limiting device that bottom plate can be prevented to reset to the right between box body and bottom plate, to the left by after press, bottom plate can be limited
Position device limit；It is equipped with the guide rail being located on rear side of movable plate in box body, guide rail is equipped with and can move left and right along guide rail and to the left again
The sliding block of position；The support rod that can be moved forward and backward and reset backward is fitted on sliding block；The front end of support rod is hinged with can only be to the left
The driving lever of swing；The rear wall of box body is ladder-like, and offers limit hole, and sliding block can be placed in limit hole after moving right；
Sliding block, which is moved to the left, first to drive right movable plate to be moved to the left by driving lever, then left movable plate is driven to be moved to the left；Left movable plate
It will push limiting device release after being moved to the left, reset bottom plate to the right, and two movable plates is driven to reset to the right.
Operation of the present invention is convenient, and clever structure is low in cost, easily manufactured, safely and effectively, substantially increases tumour cell
The portability and safety for puncturing sampling, improve speed and quality, ensure that the safety of patient.
Detailed description of the invention
Fig. 1 is stereoscopic schematic diagram of the invention.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Fig. 3 is top view (removing upper end cover) of the invention.
Fig. 4 is top cross-sectional view (state one) of the invention.
Fig. 5 is top cross-sectional view (state two) of the invention.
Fig. 6 is the partial enlarged view in Fig. 4 at B.
Fig. 7 is the partial enlarged view in Fig. 4 at C.
Specific embodiment
A specific embodiment of the invention is described in further details below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 7, the present invention includes box body 1, and box body 1 is equipped with the upper end cover 2 that can be fastened；There is energy in box body 1
The bottom plate 3 moved left and right along box body 1, bottom plate 3 can reset to the right；The guide rod 4 of left and right directions, guide rod 4 are fixedly installed on bottom plate 3
On be fixedly installed with the limited block 5 of left, center, right three；It is left, in have left movable plate 6 between two limited blocks 5；In, right two limits
There is right movable plate 7 between the block 5 of position；Two movable plates can be slided along guide rod 4；The upper end of each movable plate is respectively connected with one and erects
Straight connecting rod 8, the upper end of two connecting rods 8 and the left side of box body 1 are mounted on the connector 9 of one with pintle cooperation；Three connect
First 9 is coaxially arranged and side opens up fluted 10；
Equipped with the limiting device that bottom plate 3 can be prevented to reset to the right between box body 1 and bottom plate 3, after pressing press 3 to the left, 3 meeting of bottom plate
It is limited device limit；The guide rail 11 being located on rear side of movable plate is equipped in box body 1, guide rail 11 is equipped with and can move along guide rail 11 or so
Sliding block 12 that is dynamic and resetting to the left；The support rod 13 that can be moved forward and backward and reset backward is fitted on sliding block 12；Support rod 13
Front end is hinged with the driving lever 14 that can only be swung to the left；The rear wall of box body 1 is ladder-like, and offers limit hole 15, sliding block 12
It can be placed in limit hole 15 after moving right；Sliding block 12, which is moved to the left, first to drive right movable plate 7 to be moved to the left by driving lever 14,
Left movable plate 6 is driven to be moved to the left again；Left movable plate 6 will push limiting device release after being moved to the left, keep bottom plate 3 multiple to the right
Position, and two movable plates is driven to reset to the right.
In order to realize the cooperation of cell taking gun and syringe needle, the connector 9 is taper, and it is three layers that biopsy needle 34, which divides, wherein living
The pintle for examining the solid needle inside needle 34 is corresponding with the connector 9 on right side connecting rod 8；The pintle of the middle layer of biopsy needle 34 and left side
Connector 9 on connecting rod 8 is corresponding；The outermost pintle of biopsy needle 34 is corresponding with the connector 9 on the left of cabinet.
For the ease of moving left and right by press 3, the right end of the bottom plate 3, which is equipped with, presses cap 16, bottom plate 3 through cabinet
The first tension spring 17 is connected between the right side of box body 1, the quantity of the first tension spring 17 is multiple.
For beautiful and safety, the box body 1 is equipped with baffle 18, offers on baffle 18 and two connecting rods 8 in left and right
Corresponding recessing groove 19；The upper end of sliding block 12 is placed in the top of baffle 18 simultaneously, offers on baffle 18 corresponding with sliding block 12
Sliding slot 20；The upper end of sliding block 12 is equipped with the key 21 for being placed in 18 top of baffle.
In order to realize moving left and right and resetting and the back-and-forth motion of support rod 13 and reset backward to the left for sliding block 12,
The second tension spring 22 being equipped on the guide rail 11 between 1 left side of 12 left side of sliding block and box body；The upper end of support rod 13
For orbicule, the pressure spring 23 that is set on support rod 13 between orbicule and sliding block 12.
For the ease of pressing support rod 13, support rod 13 is set to be detached from limit hole 15, the limit hole 15 is stepped hole, limit
Activity is fitted with mandril 24 in the hole 15 of position, and the rear and front end of mandril 24 is equipped with protrusion.
In order to realize the hinged of driving lever 14 and support rod 13, it swing driving lever 14 can only to the left, the driving lever 14 is hinged
At the middle part of the left side of support rod 13, third tension spring 25 is connected between the lower end of driving lever 14 and the lower end of support rod 13.
When in order to realize that sliding block 12 is moved to the left, can first stir right movable plate 7 and be moved to the left, stir left movable plate 6 to
It moves left, the ladder-like of 1 rear wall of box body successively reduces from right to left, and is divided into three sections；It is seamlessly transitted between three sections；
When support rod 13 slides to the left, the stair-stepping cooperation through 1 trailing flank of box body, meeting stepping is moved backward；While right movable plate 7
Rear end face is placed in the front side of the rear end face of left movable plate 6.
In order to realize limit, the limiting device includes the L-type hook 26 being fixed on 1 left side wall of box body, baffle 18
It is equipped with the fixed block 27 for being fixed on 4 left side of guide rod, inserts the positioning pin 28 that can be moved forward and backward on fixed plate, positioning pin 28
Front end is the inclined-plane cooperated with hook 26, and the 4th tension spring 29 that positioning pin 28 can be made to move forward is set on positioning pin 28；Bottom
Turntable 30 is installed on plate 3, is set on turntable 30 there are two strut 31, the strut 31 on right side is tilted towards right placement, the strut in left side
31 is horizontal towards left placement, and the strut 31 in left side is equipped with loose slot 32, and pin is equipped with the locating rod 33 being placed in loose slot 32；
Left movable plate 6 is moved to the left the strut 31 that can squeeze right side, rotates turntable 30, then makes to drive pin backward on the left of turntable 30
It is moved out hook 26.
In order to realize that the Stable sliding of movable plate, the guide rod 4 are former and later two and are placed in parallel that each movable plate is equal
It is sleeved on two guide rods 4 simultaneously.
In order to realize the fastening of upper end cover 2, cooperated by way of magnetic between the upper end cover 2 and box body 1.
Three layers of biopsy needle 34 used in the present invention, the specially solid needle in bosom are offered above solid needle and are taken
Sample slot；It is cased with one layer of sampling sleeve outside solid needle, this layer of sleeve generally plays the role of cutting tissue, close sampling groove；Sampling
It is equipped with one layer of protection sleeve on the outside of sleeve, mainly shields；In being divided into, in, it is three layers outer.
When being punctured, three layers of biopsy needle 34 and three connectors 9 are cooperated first, during installation, three can be made
Layer biopsy needle 34 is horizontally through the groove 10 on connector 9, so as to so that connector 9 is cooperated with each pintle；When installation,
The pintle of the solid needle inside biopsy needle 34 should be made corresponding with the connector 9 on right side connecting rod 8；The pintle of the middle layer of biopsy needle 34
It is corresponding with the connector 9 on left side connecting rod 8；The outermost pintle of biopsy needle 34 is corresponding with the connector 9 on the left of cabinet.
After the completion of three layers of biopsy needle 34 and shell cooperation, just need by cell taking gun " energetically ", when energetically；It is needed when energetically
The operation of two steps, first, to the left by cap 16 is pressed, makes bottom plate 3 be limited device and fixes, and second slides to the right key 21, makes support rod
13 are placed in limit hole 15, hereafter upper end cover 2 can be adsorbed on box body 1, and be hold by one hand box body 1, be punctured.
" energetically " principle of process and points for attention are as follows:
First step principle: it first it should be appreciated that left movable plate 6 and right movable plate 7 are the state freely slided along guide rod 4, therefore does
Left movable plate 6 will not stop the activity of positioning pin 28 in the absence of external forces；Therefore, after bottom plate 3 is moved to the left, at this time
The positioning pin 28 of 3 left end of bottom plate installation can be stuck on hook 26, and prevent bottom plate 3 from resetting to the right.
Second cloth principle, when sliding key 21 along sliding slot 20, sliding block 12 can move right along guide rail 11, in sliding block
During 12 move right, the orbicule of 13 rear end of support rod by 1 rear wall of box body and ladder-like can be squeezed；Therefore it supports
The meeting of bar 13 side moves right, and side stepping moves forward, and when the driving lever 14 of 13 front end of support rod touches left movable plate 6, can dial
It moves left movable plate 6 and is moved to left movable plate 6 close to intermediate limited block 5；Then driving lever 14 can be swung to the left, then moved right
Dynamic, support rod 13 can move forward certain distance again at this time, stir limit of the right movable plate 7 to right movable plate 7 close to right side
Position block 5, then driving lever 14 can be swung to the left again, across right movable plate 7, and after continuing certain distance to the right, support rod 13
Rear end can be placed in limit hole 15, and squeeze mandril 24, the rear end of mandril 24 made to be placed in the rear side of box body 1.So far it unclamps and presses
Key 21, support rod 13 will not be moved to the left；Three layers of left end of biopsy needle 34 at this time can successively be stretched out a bit of simultaneously, just
In puncture (referring to attached drawing 3, and 4).
Penetration phase should steadily hold entire box body 1, in the position for showing biopsy needle 34 using ultrasonic wave, make outermost
Until the edge for the tumour cell that the sleeve of layer samples required for reaching, stop inwardly puncturing at this time.Start to sample.
Sample phase, entire box body 1 of holding with a firm grip；And preceding pressing mandril 24, after popping up to the right by cap 16, sampling just terminates.
It pops up to the right from pressing mandril 24 to by cap 16 and (moves to the state two of attached drawing 6 from the state one of attached drawing 5), entirely
Specific operation principles inside device are as follows:
Mandril 24 moves forward, and can squeeze support rod 13 and be detached from limit hole 15, and sliding block 12 can be in the effect of the second tension spring 22 at this time
It is lower to be moved to the left along guide rail 11, then support rod 13 is driven to be moved to the left.Support rod 13 is moved to the left can stir right activity first
Bar is moved to the left, and realizes the puncture of solid needle in biopsy needle 34, and the sampling groove of solid needle is allow to be placed in the inside of tissue；And
Back support rod 13 continues to be moved to the left, and encounters the first segment slope change of 1 trailing flank of box body at this time, and support rod 13 can move backward
A distance, so that the lower end of driving lever 14 be made to be detached from and the contact of right movable plate 7；Simultaneously because left 6 length of movable plate is longer, i.e.,
The trailing flank of left movable plate 6 is more towards latter point, therefore driving lever 14 continues to the left, to stir left interactive plate and be moved to the left, realize
The puncture that sleeve is sampled in biopsy needle 34, allows tissue to be cut and be stayed in the sampling groove of solid needle；When left movable plate 6 after
Continue after being moved to the left, left movable plate 6 can squeeze the strut 31 on the right side on turntable 30 at this time, turn turntable 30 clockwise
Dynamic, after turntable 30 rotates, the strut 31 of 30 upper left side of turntable can be moved backward, and move backward positioning pin 28 and be detached from hook
26, the rear end of support rod 13 just encounters second segment slope change at this time, and support rod 13 can move backward a distance, and be detached from
With the contact of left movable plate 6；After limiting device unclamps simultaneously, bottom plate 3 can reset to the right under the action of the first tension spring 17, simultaneously
It drives two movable plates in left and right to reset to the right through guide rod 4 and limited block 5, realizes solid needle and sampling sleeve is completely retracted into most
The inside of outer layer protection sleeve.In driving lever 14 not after stirring left movable plate 6, due to being set with the 4th tension spring on positioning pin 28
29, positioning pin 28 can move forward a small distance, to move right one through turntable 30 and the left movable plate 6 of 31 driving lever of strut 14
Segment distance, this distance is smaller, and sampling sleeve can be still sleeved on solid needle completely.
Entire box body 1 finally can slowly be extracted, so that entire biopsy needle 34 is detached from human body, extracting by the extraction stage
During, due to solid needle and sampling sleeve be constantly in protection sleeve inside, zero infections may be implemented.
Take out sample stage makes device be restored to the state of puncture to the left by cap 16 is pressed, and then opens upper end cover 2, dials
The connector 9 of the dynamic rightmost side, solid needle just individually stretch out, and to prevent sampling sleeve from stretching out together, can help intermediate connector 9,
Keep its motionless.In the present apparatus, the rear end of mandril 24 can install the lid screwed, prevent inadvertent depression mandril 24.
The present invention is by three layers of biopsy needle 34 of setting, so that outermost sleeve is made to provide the channel of a safety,
Outermost sleeve is in the boundary of sampling area when sampling, to allow in interior to enter directly into after sampling for two layers outermost
The sleeve inner of layer, last contacts two layers of needle in interior with normal cell, realizes the guarantor to normal cell with extracting
Shield, avoids the diffusion of malignant tumour, solves the problems, such as that tumor tissues sampling is difficult.
The present apparatus can be in order to entire after covering upper end cover 2 by the upper end cover 2 on setting box body 1 and box body 1
The gripping of device, at the same after sampling, it can be by opening upper end cover 2, and the connector 9 of the rightmost side is stirred, realize sample
It takes out, whole device appearance is mellow and full, easy to operate.
The present apparatus passes through the solid needle of setting support biopsy needle 34 and the bottom plate 3 of sampling sleeve；And it is installed most on box body 1
The protection sleeve of outer layer, constitutes the full-automatic biopsy gun of three layers of sleeve, has broken tradition and has needed to be separately provided outermost layer sleeve
Placement, three layers of sleeve are cleverly linked together；Primary triggering is realized, the process entirely sampled is rapidly completed, entirely
Process speed is fast, and sampling is quasi-, does not infect；Whole device only needs key 21 to be pulled, in sampling by cap 16 is pressed using preceding
Also need to press mandril 24, can complete, operation difficulty is low, be easy to hold it is steady, can be with one-handed performance, syringe needle is easy to assemble etc.
Plurality of advantages.
In the present apparatus, sampling is fed in traditional solid needle first, on the basis of then sampling sleeve feeding cutting；Additionally
Increase, the step of the two is retracted jointly, and three movements are cleverly linked first, to realize specifically for tumour
The Biopsy rifle of sampling.
Operation of the present invention is convenient, and clever structure is low in cost, easily manufactured, safely and effectively, substantially increases tumour cell
The portability and safety for puncturing sampling, improve speed and quality, ensure that the safety of patient.
Claims (10)
1. a kind of full-automatic tumour non-proliferation cell taking gun, including box body (1), which is characterized in that box body (1) is equipped with and can fasten
Upper end cover (2)；Have and can be resetted to the right along the bottom plate (3) that box body (1) moves left and right, bottom plate (3) in box body (1)；On bottom plate (3)
It is fixedly installed with the guide rod (4) of left and right directions, the limited block (5) of left, center, right three is fixedly installed on guide rod (4)；It is left, in two
There are left movable plate (6) between a limited block (5)；In, between right two limited blocks (5) have right movable plate (7)；Two movable plates
It can be slided along guide rod (4)；The upper end of each movable plate is respectively connected with a vertical connecting rod (8), the upper end of two connecting rods (8)
And the connector (9) of one with pintle cooperation are mounted on the left of box body (1)；Three connector (9) is coaxially arranged and side is equal
Open up fluted (10)；
Equipped with the limiting device that bottom plate (3) can be prevented to reset to the right between box body (1) and bottom plate (3), press (3) are pressed to the left
Afterwards, bottom plate (3) can be limited device limit；The guide rail (11) being located on rear side of movable plate is equipped in box body (1), guide rail is set on (11)
Having can be along the sliding block (12) that guide rail (11) move left and right and reset to the left；Being fitted on sliding block (12) can be moved forward and backward and answer backward
The support rod (13) of position；The front end of support rod (13) is hinged with the driving lever (14) that can only be swung to the left；The rear wall of box body (1) is
It is ladder-like, and limit hole (15) are offered, sliding block (12) can be placed in limit hole (15) after moving right；Sliding block (12) Xiang Zuoyi
Kinetic energy first drives right movable plate (7) to be moved to the left by driving lever (14), then left movable plate (6) is driven to be moved to the left；Left movable plate
(6) it will push limiting device release after being moved to the left, reset bottom plate (3) to the right, and two movable plates is driven to reset to the right.
2. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the connector (9)
For taper, biopsy needle (34) is divided into three layers, wherein the internal pintle of solid needle of biopsy needle (34) and connecing on right side connecting rod (8)
Head (9) is corresponding；The pintle of the middle layer of biopsy needle (34) is corresponding with connector (9) on left side connecting rod (8)；Biopsy needle (34) is outermost
The pintle of layer is corresponding with connector (9) on the left of cabinet.
3. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the bottom plate (3)
Right end be equipped with through cabinet press cap (16), the first tension spring (17) are connected between bottom plate (3) and the right side of box body (1),
The quantity of first tension spring (17) is multiple.
4. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the box body (1)
It is equipped with baffle (18), recessing groove (19) corresponding with left and right two connecting rod (8) is offered on baffle (18)；Sliding block (12) simultaneously
Upper end be placed in the tops of baffle (18), offer sliding slot (20) corresponding with sliding block (12) on baffle (18)；Sliding block (12)
Upper end is equipped with the key (21) being placed in above baffle (18).
5. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the guide rail (11)
On the second tension spring (22) on the left of the sliding block (12) between box body (1) left side is installed；The upper end of support rod (13) is ball
Shape body, the pressure spring (23) being set on support rod (13) between orbicule and sliding block (12).
6. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the limit hole
It (15) is stepped hole, limit hole (15) interior activity is fitted with mandril (24), and the rear and front end of mandril (24) is equipped with protrusion.
7. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the driving lever (14)
It is hinged on the middle part of the left side of support rod (13), third drawing is connected between the lower end of driving lever (14) and the lower end of support (13)
Spring (25).
8. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the box body (1)
The ladder-like of rear wall successively reduces from right to left, and is divided into three sections；It is seamlessly transitted between three sections；Support rod (13) slides to the left
When, the stair-stepping cooperation through box body (1) trailing flank, meeting stepping moves backward；The rear end face of right movable plate (7) is placed in a left side simultaneously
The front side of the rear end face of movable plate (6).
9. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the limiting device
L-type including being fixed on box body (1) left side wall links up with (26), and baffle (18) is equipped with the fixation being fixed on the left of guide rod (4)
Block (27), inserts the positioning pin (28) that can be moved forward and backward on fixed plate, the front end of positioning pin (28) for and hook (26) cooperation
Inclined-plane, the 4th tension spring (29) that positioning pin (28) can be made to move forward is set on positioning pin (28)；Bottom plate is equipped on (3)
Turntable (30) is set on turntable (30) there are two strut (31), and strut (31) inclination on right side is towards right placement, the strut (31) in left side
Level is equipped with loose slot (32) towards left placement, the strut (31) in left side, and pin is equipped with the positioning being placed in loose slot (32)
Bar (33)；Left movable plate (6) is moved to the left the strut (31) that can squeeze right side, rotates turntable (30), then makes turntable (30)
Left side drives pin to move backward disengaging hook (26).
10. a kind of full-automatic tumour non-proliferation cell taking gun according to claim 1, which is characterized in that the guide rod
(14) it is former and later two and is placed in parallel, each movable plate is sleeved on two guide rods (14) simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244590.5A CN109820543B (en) | 2019-03-28 | 2019-03-28 | Full-automatic tumour diffusion-preventing biopsy gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244590.5A CN109820543B (en) | 2019-03-28 | 2019-03-28 | Full-automatic tumour diffusion-preventing biopsy gun |
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| CN109820543A true CN109820543A (en) | 2019-05-31 |
| CN109820543B CN109820543B (en) | 2021-08-27 |
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Inventor after: Wang Zhenbo Inventor after: Li Lei Inventor after: Tian Lijun Inventor after: Zhou Shifan Inventor after: Liu Ming Inventor after: Guo Dong Inventor after: Liu Shu Inventor after: Qi Wei Inventor before: Zhou Shifan Inventor before: Liu Ming Inventor before: Guo Dong Inventor before: Liu Shu Inventor before: Qi Wei |
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