CN207520156U - A kind of needle inhales cell sampler - Google Patents
A kind of needle inhales cell sampler Download PDFInfo
- Publication number
- CN207520156U CN207520156U CN201720431678.4U CN201720431678U CN207520156U CN 207520156 U CN207520156 U CN 207520156U CN 201720431678 U CN201720431678 U CN 201720431678U CN 207520156 U CN207520156 U CN 207520156U
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- syringe
- needle
- piston
- core pin
- side wall
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Abstract
A kind of needle inhales cell sampler, it is related to a kind of medical instrument, it includes syringe needle (1), syringe (2), piston (3), piston core pin (4), syringe (2) side wall is provided with side wall aperture (5) close to syringe needle side, and elastic card (7) is set in piston core pin (4).Using syringe pedestal (12) or by being provided with and elastic card (7) matched groove (6) in syringe (2) inner wall, when pull piston core pin (4), before piston core pin (4) is without side wall aperture (5), elastic card (7) is buckled on syringe pedestal (12) or buckle is in groove (6).The utility model, which avoids human factor in the prior art, reduces the situation of diagnostic accuracy, efficiently solve the problems, such as that negative pressure keeps and discharges, one hand can be realized needle and inhale and withdraw of the needle process, it improves work efficiency, ensure diagnostic accuracy, simple in structure, reasonable design, easy to operate, strong applicability simultaneously.
Description
Technical field
The utility model is related to a kind of medical instruments, inhale cell sampler more particularly to a kind of needle.
Background technology
It is to obtain the science that histocyte form changes come study of disease according to puncturing that needle, which inhales cell pathology,.Needle inhales cell
Procuratorial theory is widely used in determining pathological tissues cell property by domestic and international medical institutions, and achieves good effect.
Existing technology is mainly to draw the cell of diseased region with syringe and syringe needle cooperation, and needle point passes through skin and skin under normal pressure
When undertissue is sent to diseased region, make to generate negative pressure in syringe by pull piston core pin, draw subcutaneous group of sick cell backed off after random
It knits and skin, sick cell is placed in and applies on piece observation.This method the problem is that：On the one hand if piston rod core detaches needle
Then the reduction of needle tubing negative pressure leads to suction of cells amount deficiency or cell detachment, the needle tubing if piston rod core detaches syringe too late to cylinder too early
Negative pressure existence time is long to cause needle inner cell to enter within syringe；Doctor's both hands is needed to operate in another aspect operating process,
Needle is inhaled cyto-diagnosis and is easily influenced by human factor, occurs cell detachment if operation error easily leads to piston core pin automatic retracted and shows
As.Using needle inhale cell judge in pathological change form, more than two aspect problems all can because the interference effect of human factor diagnosis standard
Exactness, only there are one pin holes for syringe needle in addition, can also influence needle and inhale cell effect and efficiency, reduce the accuracy of diagnosis.
Utility model content
The purpose of this utility model is to provide a kind of needles to inhale cell sampler, can solve present in prior art means
On the one hand two aspect problems are that piston rod core detaches syringe too early or occurs the problem of diagnosis accuracy reduction, the opposing party too late
Face needs both hands to operate, and there are problems that the accuracy that interference from human factor leads to diagnosis.
The technical issues of the utility model solves can take following scheme to realize：A kind of needle inhales cell sampler,
Including syringe needle, syringe, piston, piston core pin, syringe tube head is set, needle mount connects with syringe tube head thread on syringe end wall
It connects, the rear end of syringe is extended outward pedestal, and piston is plugged in syringe and can be fitted closely with needle cylinder wall, side wall, piston
It is fixedly connected with piston core pin；It is characterized in that：The barrel sidewall is provided with side wall aperture close to the syringe needle side；The piston
Elastic card is set on core bar；The syringe inner wall is provided with and the matched groove of the elastic card；The piston with it is described
When syringe end wall fits closely, start piston core pin described in pull, when the elastic card buckle is before the groove, the work
Plug in the syringe end wall away from the side wall aperture position in the range of, without the side wall aperture.
Preferably, wing handle is fixed in the piston core pin tail portion.
Preferably, the elastic card is integrally formed when being manufactured with the piston core pin.
Preferably, the syringe needle offers needle point side opening close to tip position.
A kind of needle inhales cell sampler, and including syringe needle, syringe, piston, piston core pin, syringe tube is set on syringe end wall
Head, needle mount are connect with syringe tube head thread, and the rear end of syringe is extended outward pedestal, and piston is plugged in syringe and can
It is fitted closely with syringe end wall, side wall, piston is fixedly connected with piston core pin；It is characterized in that：The barrel sidewall is close to described
Syringe needle side is provided with side wall aperture；Elastic card is set in the piston core pin；The piston is closely pasted with the syringe end wall
During conjunction, start piston core pin described in pull, before the elastic card is buckled in the pedestal, the piston is in the syringe end
Wall away from the side wall aperture position in the range of, without the side wall aperture.
Preferably, wing handle is fixed in the piston core pin tail portion.
Preferably, the elastic card is integrally formed when being manufactured with the piston core pin.
Preferably, the syringe needle offers needle point side opening close to tip position.
Compared with prior art, what is reached has the technical effect that the utility model：By setting elastic card in piston core pin
Piece, by syringe inner wall be provided with the matched groove of elastic card, backward during pull piston core pin, when elastic card reach
Groove location and buckle stop retraction in groove, making piston；Either by setting elastic card in piston core pin, backward
During pull piston core pin, when elastic card is buckled on syringe pedestal, piston is made to stop retraction；Both methods can make piston
Stop retraction, do not need to both hands control and ensure that syringe can provide the negative pressure value that cell is inhaled for needle, avoid both hands behaviour
The problem of work causes human error that piston core pin retraction is caused to influence accuracy；By opening up side close to tip position in syringe needle
Hole helps to draw more sick cells, improve work efficiency.When piston is fitted closely with syringe end wall, start pull institute
State piston core pin, when the elastic card buckle is before groove, the piston be in syringe end wall away from aperture position in the range of, not
By side wall aperture；When either piston is fitted closely with syringe end wall, start piston core pin described in pull, when the elastic card
Before piece is buckled in syringe pedestal, the piston be in syringe end wall away from aperture position in the range of, without side wall aperture；Both sides
Method may ensure that elastic card be fixed in groove or syringe pedestal on when, keep negative pressure state constant in syringe；And continue
Backward during pull piston core pin, needle tubing discharges negative pressure after piston slips over aperture position, and needle, which is drawn through journey, can terminate and in time for singly
The hand withdraw of the needle provides convenient；By fixing wing handle in piston core pin tail portion, facility is provided for one-handed performance；By in syringe side
Wall is provided with side wall aperture close to the syringe needle side, solves piston rod core and detaches syringe too early or too late to the accuracy of diagnosis
Influence, play the role of holding with subduction needle tubing in negative pressure.
The utility model is simple in structure, reasonable design, easy to operate, it is convenient to control the holding of negative pressure in syringe and release
It puts, reduces the influence of human factor, improve needle and inhale cell effect, working efficiency and the accuracy of diagnosis.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.
Fig. 1：The needle of first embodiment inhales cell sampler positive structure schematic
Fig. 2：Local syringe needle schematic diagram in first and second embodiment
Fig. 3：Wing handle left view in first and second embodiment
Fig. 4：The needle in negative pressure state inhales cell sampler positive structure schematic in first embodiment
Fig. 5：The needle in barotropic state inhales cell sampler positive structure schematic in first embodiment
Fig. 6：The needle of second embodiment inhales cell sampler positive structure schematic
Fig. 7：The needle in negative pressure state inhales cell sampler positive structure schematic in second embodiment
Fig. 8：The needle in barotropic state inhales cell sampler positive structure schematic in second embodiment
Main tender and label：
Syringe needle：1,1 '；Syringe：2,2 '；Piston：3,3 '；Piston core pin：4,4 '；Side wall aperture：5,5 '；Groove：6；Elasticity
Card：7,7 '；Syringe tube head：8,8 '；Wing handle：9,9 '；Needle mount：10,10 '；Needle point side opening：11,11 '；Pedestal：
12,12 '；
Specific embodiment
For the purpose of this utility model, technical solution and advantage is made clearly to show, below in conjunction with attached drawing to this
Utility model embodiment is described in further detail.
First embodiment
Fig. 1 is that the needle of first embodiment inhales cell sampler positive structure schematic, and Fig. 2 is first and second embodiment
In local syringe needle schematic diagram, Fig. 3 be first and second embodiment in wing handle left view.As shown in Figure 1-Figure 3, it is a kind of
Needle inhales cell sampler, and including syringe needle 1, syringe 2, piston 3, piston core pin 4, syringe tube head 8, syringe needle are set on 2 end wall of syringe
Pedestal 10 is threadedly coupled with syringe tube head 8, and the rear end of syringe 2 is extended outward pedestal 12, and piston 3 is plugged in syringe 2 and energy
Enough to be fitted closely with 2 end wall of syringe, side wall, piston 3 is fixedly connected with piston core pin 4；It is characterized in that：2 side wall of syringe leans on
Nearly 1 side of syringe needle is provided with side wall aperture 5；Elastic card 7 is set in the piston core pin 4；2 inner wall of syringe be provided with
The 7 matched groove 6 of elastic card；When the piston 3 is fitted closely with 2 end wall of syringe, start living described in pull
Core bar 4 is filled in, when 7 buckle of elastic card is before the groove 6, the piston 3 is in 2 end wall of syringe away from the side wall
In 5 position range of aperture, without the side wall aperture 5.
Preferably, the piston core pin 4, wing handle 9 is fixed in tail portion.
Preferably, the elastic card 7 is integrally formed when being manufactured with the piston core pin 4.
Preferably, the syringe needle 1 offers needle point side opening 11 close to tip position.
Fig. 4 is that the needle in negative pressure state inhales cell sampler positive structure schematic, Fig. 5 the in first embodiment
The needle in barotropic state inhales cell sampler positive structure schematic in one embodiment.As shown in fig. 4-5, normal pressure knit stitch
When point passes through skin and the subcutaneous tissue to be sent to diseased region, syringe 2 is made to generate negative pressure by pull piston core pin 4, because of piston core pin 4
On elastic card 7 be pressurized when retract, and without pressure when automatically reset, then when elastic card 7 slips over sidewall notches 6, elastic card
Piece 7 is embedded in groove 6, and piston core pin 4 is fixed at this time, and syringe 2 keeps negative pressure state, and syringe needle 1 and needle point side opening 11 can be inhaled
The sick cell for the amount of taking fully only needs one-handed performance wing handle 9 that piston 3 can be avoided to bounce back；After sufficient cells are drawn, continue
Pull piston core pin 4, after piston 3 slips over 2 side wall aperture 5 of syringe, atmospheric pressure enters in syringe 2, and syringe 2 keeps positive pressure shape
State only needs one-handed performance wing handle 9 that can exit subcutaneous tissue and skin；After syringe needle 1 exits skin, pushed away to 1 direction of syringe needle
Sick cell in syringe needle is placed in by piston core bar 4 applies on piece observation lesion nature.
Second embodiment
Fig. 6 is that the needle of second embodiment inhales cell sampler positive structure schematic, and Fig. 2 is first and second embodiment
In local syringe needle schematic diagram, Fig. 3 be first and second embodiment in wing handle left view.As shown in Fig. 6, Fig. 2, Fig. 3,
A kind of needle inhales cell sampler, and including syringe needle 1 ', syringe 2 ', piston 3 ', piston core pin 4 ', syringe tube is set on 2 ' end wall of syringe
First 8 ', needle mount 10 ' is threadedly coupled with syringe tube head 8 ', and the rear end of syringe 2 ' is extended outward pedestal 12 ', 3 ' grafting of piston
It can fit closely in syringe 2 ' and with 2 ' end wall of syringe, side wall, piston 3 ' is fixedly connected with piston core pin 4 '；Its feature
It is：2 ' the side wall of syringe is provided with side wall aperture 5 ' close to the 1 ' side of syringe needle；Elastic card is set in the piston core pin 4 '
Piece 7 '；When the piston 3 ' is fitted closely with the 2 ' end wall of syringe, start piston core pin 4 ' described in pull, when the elastic card
Before piece 7 ' is buckled in the pedestal 12 ', the piston 3 ' in the 2 ' end wall of syringe away from the 5 ' position range of side wall aperture,
Without the side wall aperture 5 '.
Preferably, wing handle 9 ' is fixed in the 4 ' tail portion of piston core pin.
Preferably, the elastic card 7 ' is integrally formed when being manufactured with the piston core pin 4 '.
Preferably, the syringe needle 1 ' offers needle point side opening 11 ' close to tip position.
Fig. 7 is that the needle in negative pressure state inhales cell sampler positive structure schematic, Fig. 8 the in second embodiment
The needle in barotropic state inhales cell sampler positive structure schematic in two embodiments.As shown in Figs. 7-8, normal pressure knit stitch
When point passes through skin and the subcutaneous tissue to be sent to diseased region, syringe 2 ' is made to generate negative pressure by pull piston core pin 4 ', because of piston core
Elastic card 7 ' on bar 4 ' is retracted when being pressurized, and without automatically reseting when pressing, then when elastic card 7 ' slips over syringe pedestal 12 '
When, elastic card 7 ' is fastened on pedestal 12 ', and piston core pin 4 ' is fixed at this time, syringe 2 ' keep negative pressure state, syringe needle 1 ' and
Needle point side opening 11 ' can draw enough sick cells, only need one-handed performance wing handle 9 ' that piston 3 ' can be avoided to bounce back；Work as suction
After taking sufficient cells, continue pull piston core pin 4 ', after piston 3 ' slips over 2 ' side wall aperture 5 ' of syringe, atmospheric pressure enters syringe
In 2 ', syringe 2 ' keeps barotropic state, only needs one-handed performance wing handle 9 ' that can exit subcutaneous tissue and skin；Syringe needle 1 ' moves back
After going out skin, piston core pin 4 ' is pushed to be placed in the sick cell in syringe needle to 1 ' direction of syringe needle and apply on piece observation lesion nature.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain of profit requirement.
Claims (8)
1. a kind of needle inhales cell sampler, including syringe needle (1), syringe (2), piston (3), piston core pin (4), syringe (2) end wall
Upper setting syringe tube head (8), needle mount (10) are threadedly coupled with syringe tube head (8), and the rear end of syringe (2) is extended outward bottom
Seat (12), piston (3) are plugged in syringe (2) and can be fitted closely with syringe (2) end wall, side wall, piston (3) and piston core
Bar (4) is fixedly connected；It is characterized in that：Syringe (2) side wall is provided with side wall aperture (5) close to the syringe needle (1) side；It is described
Elastic card (7) is set in piston core pin (4)；Syringe (2) inner wall is provided with and the elastic card (7) matched groove
(6)；When the piston (3) fits closely with the syringe (2) end wall, start piston core pin (4) described in pull, when the elasticity
Card (7) buckle is before the groove (6), and the piston (3) is in the syringe (2) end wall away from side wall aperture (5) position
In the range of putting, without the side wall aperture (5).
2. needle according to claim 1 inhales cell sampler, it is characterized in that：Wing is fixed in piston core pin (4) tail portion
Handle (9).
3. needle according to claim 1 inhales cell sampler, it is characterized in that：The elastic card (7) and the piston core
Bar (4) is integrally formed when manufacturing.
4. needle according to claim 1 inhales cell sampler, it is characterized in that：The syringe needle (1) opens up close to tip position
There is needle point side opening (11).
5. a kind of needle inhales cell sampler, including syringe needle (1 '), syringe (2 '), piston (3 '), piston core pin (4 '), syringe (2 ')
Syringe tube head (8 ') is set on end wall, and needle mount (10 ') is threadedly coupled with syringe tube head (8 '), and the rear end of syringe (2 ') is outside
Extended to have pedestal (12 '), piston (3 ') is plugged in syringe (2 ') and can be fitted closely with syringe (2 ') end wall, side wall, living
Plug (3 ') is fixedly connected with piston core pin (4 ')；It is characterized in that：Syringe (the 2 ') side wall is opened close to syringe needle (the 1 ') side
There is side wall aperture (5 ')；Elastic card (7 ') is set on the piston core pin (4 ')；The piston (3 ') and the syringe (2 ')
When end wall fits closely, start piston core pin (4 ') described in pull, when the elastic card (7 ') is buckled in the pedestal (12 ')
Before, the piston (3 ') in syringe (the 2 ') end wall away from side wall aperture (the 5 ') position range, without the side
Wall aperture (5 ').
6. needle according to claim 5 inhales cell sampler, it is characterized in that：Wing is fixed in piston core pin (the 4 ') tail portion
Handle (9 ').
7. needle according to claim 5 inhales cell sampler, it is characterized in that：The elastic card (7 ') and the piston core
Bar (4 ') is integrally formed when manufacturing.
8. needle according to claim 5 inhales cell sampler, it is characterized in that：The syringe needle (1 ') opens up close to tip position
There is needle point side opening (11 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431678.4U CN207520156U (en) | 2017-04-20 | 2017-04-20 | A kind of needle inhales cell sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431678.4U CN207520156U (en) | 2017-04-20 | 2017-04-20 | A kind of needle inhales cell sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207520156U true CN207520156U (en) | 2018-06-22 |
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ID=62575123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720431678.4U Expired - Fee Related CN207520156U (en) | 2017-04-20 | 2017-04-20 | A kind of needle inhales cell sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207520156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646233A (en) * | 2019-11-22 | 2020-01-03 | 广州赛太特生物医学科技有限公司 | Novel cell diagnosis is with quantitative sample device |
| CN114366179A (en) * | 2022-02-14 | 2022-04-19 | 南京华银医学检验所有限公司 | Liver tissue biopsy device and use method thereof |
| CN115211906A (en) * | 2022-08-25 | 2022-10-21 | 上海埃斯埃医疗技术有限公司 | Suction biopsy needle |
-
2017
- 2017-04-20 CN CN201720431678.4U patent/CN207520156U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646233A (en) * | 2019-11-22 | 2020-01-03 | 广州赛太特生物医学科技有限公司 | Novel cell diagnosis is with quantitative sample device |
| CN114366179A (en) * | 2022-02-14 | 2022-04-19 | 南京华银医学检验所有限公司 | Liver tissue biopsy device and use method thereof |
| CN115211906A (en) * | 2022-08-25 | 2022-10-21 | 上海埃斯埃医疗技术有限公司 | Suction biopsy needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20190420 |