CN104799887A - Tumor cell blood taking needle - Google Patents
Tumor cell blood taking needle Download PDFInfo
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- CN104799887A CN104799887A CN201510153714.0A CN201510153714A CN104799887A CN 104799887 A CN104799887 A CN 104799887A CN 201510153714 A CN201510153714 A CN 201510153714A CN 104799887 A CN104799887 A CN 104799887A
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- negative
- blood taking
- connection tube
- pressure cavity
- tube
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Abstract
The invention discloses a tumor cell blood taking needle. A puncture needle is connected with one end of a blood taking tube and the other end of the blood taking tube is connected with a negative rear connection tube; one end of a front connection tube stretches into a negative-pressure cavity and a front valve diaphragm is arranged at a connection tube opening; the front valve diaphragm only allows gas to flow into a front connection tube from the negative-pressure cavity under the action of pressure; one end of a rear connection tube stretches into the negative-pressure cavity and a rear valve diaphragm is arranged at a connection tube opening; the rear valve diaphragm only allows the gas to flow into the negative-pressure cavity from a rear connection tube under the action of pressure. According to the tumor cell blood taking needle, the front connection tube and the rear connection tube are arranged at the two ends of a negative-pressure handle; the front valve diaphragm and the rear valve diaphragm are distributed at the connection parts of the front connection tube, the rear connection tube and the negative-pressure handle; the front valve diaphragm and the rear valve diaphragm only allow the gas to flow in one direction, and the negative pressure is generated by extruding the negative-pressure cavity and is uniform; the size of the negative pressure is adjusted through controlling an extruding deformation amount and the damages to cells are small; the price is low and the tumor cell blood taking needle has a larger popularization value in clinic utilization.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly a kind of tumor cell blood taking needle.
Background technology
The generation of tumor and the healthy impact of diffusion couple are comparatively large, day by day become one of life-threatening principal disease kind, and existence and the spread condition of inspection discovery tumor are early very important to prophylactic treatment.The current inspection to tumor cell generally adopts cytolgical examination and histological examination; Cytolgical examination checks with the cell of Fine needle aspiration affected area, Fine needle aspiration cytology is a medically important diagnostic means, but, apply ordinary syringe at present clinically and carry out tumor cell collection, need produce negative pressure by medical personnel's pull syringe, negative pressure is uneven, wound is large, medical personnel operate inconvenience, waste time and energy, inefficiency.
Summary of the invention
For solving the technical problem existed in above-mentioned technology, the invention provides a kind of negative pressure even, little to cell injury, cheap tumor cell blood taking needle.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of tumor cell blood taking needle, comprise puncture needle, blood taking tube and negative-pressure handle, described negative-pressure handle comprises negative pressure cavity, front adapter and rear tube, described puncture needle connects one end of blood taking tube, the other end of blood taking tube connects rear tube, before described, one end of adapter is stretched in negative pressure cavity, and before the mouth of pipe place of inserting end is arranged valve film, adapter before this front valve film only allows gas to flow to from negative pressure cavity under pressure, one end of described rear tube is stretched in negative pressure cavity, and after the mouth of pipe place of inserting end is arranged valve film, this rear valve film only allows gas to flow to negative pressure cavity from rear tube under pressure.
As further setting, described puncture needle is provided with needle handle.
Income effect: adapter and rear tube before being provided with relative to the negative-pressure handle two ends of prior art, the mouth of pipe that stretches into of front adapter and rear tube and negative-pressure handle is respectively equipped with front valve film and rear valve film, front valve film and rear valve film all can only allow gas unidirectional to flow, negative pressure is produced by extruding negative pressure cavity, negative pressure is even, and regulates vacuum magnitude by controlling extrusion deformation degree, little to cell injury, cheap, Clinical practice has larger promotional value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is negative-pressure handle structural representation of the present invention.
Graphical indicia, 1, puncture needle, 2, blood taking tube, 3, negative-pressure handle, 4, front adapter, 5, front valve film, 6, rear tube, 7, rear valve film, 8, negative pressure cavity.
Detailed description of the invention
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
A kind of tumor cell blood taking needle as shown in Figure 1, comprise puncture needle 1, puncture needle 1 is provided with needle handle, convenient fixed by holding steady to puncture needle in piercing process, described puncture needle 1 connects one end of blood taking tube 2, blood taking tube 2 is transparent tube body, and be convenient to the blood of medical worker when operating in observation blood taking tube 2, the other end of blood taking tube 2 connects negative-pressure handle 3.As shown in Figure 2, negative-pressure handle 3 comprises negative pressure cavity 8, front adapter 4 and rear tube 6, before described, one end of adapter 4 is stretched in negative pressure cavity 8 from outside, front adapter 4 to be connected with negative pressure cavity 8 mouth of pipe place be provided with before valve film 5, this front valve film 5 under power effect with no pressure front adapter 4 and negative pressure cavity 8 backup seal, only allow that gas is one-sided to be passed through under pressure, stop extraneous gas in the past adapter 4 flow to negative pressure cavity 8, gas can only flow to front adapter 4 from negative pressure cavity 8; One end of rear tube 6 is stretched in negative pressure cavity 8, and after the mouth of pipe place of inserting end is arranged valve film 7, this rear valve film 7 under power effect with no pressure rear tube 6 and negative pressure cavity 8 backup seal, only allow that gas is one-sided to be passed through under pressure, stop gas to flow to rear tube 6 from negative pressure cavity 8, gas can only flow to negative pressure cavity 8 from rear tube 6.
During use, the rear tube 6 of negative-pressure handle 3 connects blood taking tube 2, after puncture needle 1 puncture enters human body, extruding negative pressure cavity 8, now produce pressure in negative pressure cavity 8, front valve film 5 and rear valve film 7 are under pressure simultaneously, and because front valve film 5 only allows gas to flow to front adapter 4 under pressure from negative pressure cavity 8, rear valve film 7 prevents gas to flow to rear tube 6 from negative pressure cavity 8.When behind the gas flow outside in negative pressure cavity 8, pressure in negative pressure cavity 8 reduces, front valve film 5 stops extraneous gas the past adapter 4 to flow to negative pressure cavity 8, then valve film 7 allows gas to flow to negative pressure cavity 8 from rear tube 6, therefore, in the air flow negative pressure cavity 8 in blood taking tube 2, form vacuum in blood taking tube 2, pressure is less than human blood-pressure, blood flows in blood taking tube 2 from blood vessel, completes blood sampling.
After having taken a blood sample, extract puncture needle 1, adapter 4 before negative-pressure handle 3 is connected blood taking tube 2, the pin mouth of puncture needle 1 aims at slide, extruding negative pressure cavity 8, now produce pressure in negative pressure cavity 8, front valve film 5 and rear valve film 7 are under pressure simultaneously, because front valve film 5 only allows gas to flow to front adapter 4 under pressure from negative pressure cavity 8, rear valve film 7 prevents gas to flow to rear tube 6 from negative pressure cavity 8.Therefore gas the past adapter 4 of negative pressure cavity 8 enters in blood taking tube 2, promotes blood and flow to slide from blood taking tube 2, carry out push jack operation.
It is prior art that the present invention does not describe part.
Claims (2)
1. a tumor cell blood taking needle, comprise puncture needle (1), blood taking tube (2) and negative-pressure handle (3), it is characterized in that: described negative-pressure handle (3) comprises negative pressure cavity (8), front adapter (4) and rear tube (6), described puncture needle (1) connects one end of blood taking tube (2), the other end of blood taking tube (2) connects rear tube (6), before described, one end of adapter (4) is stretched in negative pressure cavity (8), and before the mouth of pipe place of inserting end is arranged valve film (5), adapter (4) before this front valve film (5) only allows gas to flow to from negative pressure cavity (8) under pressure, one end of described rear tube (6) is stretched in negative pressure cavity (8), and after the mouth of pipe place of inserting end is arranged valve film (7), this rear valve film (7) only allows gas to flow to negative pressure cavity (8) from rear tube (6) under pressure.
2. a kind of tumor cell blood taking needle according to claim 1, is characterized in that: described puncture needle (1) is provided with needle handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153714.0A CN104799887A (en) | 2015-04-02 | 2015-04-02 | Tumor cell blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153714.0A CN104799887A (en) | 2015-04-02 | 2015-04-02 | Tumor cell blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104799887A true CN104799887A (en) | 2015-07-29 |
Family
ID=53685401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510153714.0A Pending CN104799887A (en) | 2015-04-02 | 2015-04-02 | Tumor cell blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104799887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885704A (en) * | 2017-03-24 | 2017-06-23 | 阿美龙（福建）生物科技有限公司 | Vacuum test tube automatic puncturing and analog sampling apparatus |
| CN117243605A (en) * | 2023-11-13 | 2023-12-19 | 吉林大学 | Blood sampling device based on laminating formula carries out negative pressure drainage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4703761A (en) * | 1986-08-04 | 1987-11-03 | Rathbone R Rodion | Blood sampling device for obtaining small quantity of venous blood |
| JP2007307063A (en) * | 2006-05-17 | 2007-11-29 | Seigo Murakawa | Blood collection tube holder |
| CN201005706Y (en) * | 2006-10-18 | 2008-01-16 | 方建升 | Inner-vacuum negative pressure type disposable hemostix |
| CN202069595U (en) * | 2011-05-10 | 2011-12-14 | 钟伟萍 | Negative-pressure blood sampling device |
| CN204600537U (en) * | 2015-04-02 | 2015-09-02 | 河南科技大学第一附属医院 | A kind of tumor cell blood taking needle |
-
2015
- 2015-04-02 CN CN201510153714.0A patent/CN104799887A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4703761A (en) * | 1986-08-04 | 1987-11-03 | Rathbone R Rodion | Blood sampling device for obtaining small quantity of venous blood |
| JP2007307063A (en) * | 2006-05-17 | 2007-11-29 | Seigo Murakawa | Blood collection tube holder |
| CN201005706Y (en) * | 2006-10-18 | 2008-01-16 | 方建升 | Inner-vacuum negative pressure type disposable hemostix |
| CN202069595U (en) * | 2011-05-10 | 2011-12-14 | 钟伟萍 | Negative-pressure blood sampling device |
| CN204600537U (en) * | 2015-04-02 | 2015-09-02 | 河南科技大学第一附属医院 | A kind of tumor cell blood taking needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885704A (en) * | 2017-03-24 | 2017-06-23 | 阿美龙（福建）生物科技有限公司 | Vacuum test tube automatic puncturing and analog sampling apparatus |
| CN117243605A (en) * | 2023-11-13 | 2023-12-19 | 吉林大学 | Blood sampling device based on laminating formula carries out negative pressure drainage |
| CN117243605B (en) * | 2023-11-13 | 2024-01-23 | 吉林大学 | Blood sampling device based on laminating formula carries out negative pressure drainage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |