CN102788716B - Suction-free middle-layer straight dual-channel test tube - Google Patents
Suction-free middle-layer straight dual-channel test tube Download PDFInfo
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- CN102788716B CN102788716B CN201210265159.7A CN201210265159A CN102788716B CN 102788716 B CN102788716 B CN 102788716B CN 201210265159 A CN201210265159 A CN 201210265159A CN 102788716 B CN102788716 B CN 102788716B
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- conduit
- plug
- switch lever
- catheter
- catheter stopper
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Abstract
The invention relates to the technical field of vacuum blood collection, in particular to a suction-free middle-layer straight dual-channel test tube. The suction-free middle-layer straight dual-channel test tube consists of a splash-proof cap, a rubber plug, a switch lever, a conduit plug, a conduit and a conduit sleeve, wherein the switch lever is a T-shaped plastic rod; the upper end of the switch lever is positioned inside the rubber plug and is adhered to the rubber plug as a whole; the lower end of the switch lever is positioned inside the conduit plug made of butyl rubber; a conduit which is integrally fused with the bottom of the tube body is arranged inside the tube body; a lower end opening of the conduit extends out of the bottom of the tube body; the conduit plug is plugged into an upper end opening of the conduit; and the conduit plug is in interference fit with the conduit. The suction-free middle-layer straight dual-channel test tube can directly sample a central position of pure serum, so that the interference of an impurity layer of fibrin on the serum purity is avoided and the accuracy of a detection result of a blood sample is improved.
Description
Technical field
The present invention relates to vacuum blood drawing technique field, particularly relate to a kind of middle level directly taking type binary channels developmental tube of exempting to aspirate.
Background technology
Existing separation gel developmental tube, is upper end and opens wide, the straight tube of lower end closed.It is being drawn blood after centrifugal treating, having one deck impurity and float on serum surface.Because impurity floats on serum surface; at sampling probe, from the mouth of pipe extend into serum downwards, draw in the process of serum, once syringe needle from the floating layer of impurity process, often can be blocked; even if cause that half of sampling probe stops up, and also can cause blood preparation testing result inaccurate.This part impurity mainly materials such as little molecule micelle in the fiber protein yarn in blood, grease and separation gel forms.Because chemical property and the physical property of described impurity has diversity, by its fast, intactly to remove be very difficult.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, provide a kind of medical personnel of supplying without the impurity of removing serum surface, just can avoid sampling probe contact with impurity in extracting serum process completely, the serum purity that assurance is extracted, avoid blocked the exempting from of syringe needle to aspirate middle level directly taking type binary channels developmental tube.
The scheme that solves the technology of the present invention problem is:
Exempt to aspirate middle level directly taking type binary channels developmental tube, by splash cap, plug, switch lever, catheter stopper, conduit and sheathed catheter, formed.Body is glass tube columnar, lower end closed, in the upper port of body, is plugged with plug, and splash cap is enclosed within on plug.Switch lever is the plastic bar of a T font, and the upper end of switch lever is in described plug and bonding as a whole with plug, in the catheter stopper of the lower end of switch lever in butyl rubber material, and bonding as a whole with catheter stopper.The material of catheter stopper is butyl rubber, and catheter stopper is divided into upper and lower two parts on body, and top is up big and down small reverse frustoconic, and bottom is most advanced and sophisticated inverted cone down.In the inside of body, there is one with body coaxial inner conductor and with the bottom of body, to fuse the conduit being integrated, in the first half of the upper port of conduit in body, the lower port of conduit is stretched out from the bottom of body, and the sheathed catheter of butyl rubber material is placed on the lower port of conduit.Described catheter stopper is inserted in the upper port of described conduit, and catheter stopper becomes interference fit relation with conduit.Vertical extension in the upper port of catheter stopper insertion conduit is greater than plug and fills in the vertical extension in the upper port of body.
Lab technician is by the present invention that blood sample is housed after the separation of hydro-extractor, and the liquid in body is impurity layer, serum, separation gel, haemocyte from top to bottom successively, and the upper port of conduit is arranged in below impurity layer and in serum.Now, lab technician only needs first by under catheter extraction, again plug is upwards extracted together with splash cap, switch lever is just extracted catheter stopper out from the upper port of conduit, because the suitable for reading of body now opened wide completely, the serum in body enters the upper port of conduit and directly from the lower port of conduit, flows out under Action of Gravity Field, until impurity layer, with the liquid level of serum, drops to while approaching conduit suitable for reading, again catheter stopper is filled in to the suitable for reading of conduit, serum stops flowing out at once.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
Due to the present invention can be directly from the middle position sampling of pure serum, avoided the interference to serum purity of traditional sampling probe stretches into serum liquid level the process of serum fibrin impurity layer from top, improved the accuracy of blood preparation testing result.
2. because the present invention has consisted of the gravity flow switching system of serum sampling conduit, switch lever and catheter stopper, therefore conventional syringe and the aspiration procedure of sampling needle to serum have been saved, both saved medical equipment, make again the sampling process of serum easier, improved the work efficiency of examination of serum.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. splash cap 2. plug 3. switch lever 4. catheter stopper 5. conduit 6. sheathed catheter 7. body 8. serum 9. separation gel 10. haemocyte 11. impurity layers
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Exempt to aspirate middle level directly taking type binary channels developmental tube, by splash cap 1, plug 2, switch lever 3, catheter stopper 4, conduit 5 and sheathed catheter 6, formed.Body 7 is glass tubes columnar, lower end closed, is plugged with plug 2 in the upper port of body 7, and splash cap 1 is enclosed within on plug 2.Switch lever 3 is plastic bars of a T font, and the upper end of switch lever 3 is in described plug 2 and bonding as a whole with plug 2, in the catheter stopper 4 of the lower end of switch lever 3 in butyl rubber material, and bonding as a whole with catheter stopper 4.The material of catheter stopper 4 is butyl rubber, and catheter stopper 4 is divided into upper and lower two parts on body, and top is up big and down small reverse frustoconic, and bottom is most advanced and sophisticated inverted cone down.In the inside of body 7, there is one with body 7 coaxial inner conductors and with the bottom of body 7, to fuse the conduit 5 being integrated, in the first half of the upper port of conduit 5 in body 7, the lower port of conduit 5 is stretched out from the bottom of body 7, and the sheathed catheter 6 of butyl rubber material is placed on the lower port of conduit 5.Described catheter stopper 4 is inserted in the upper port of described conduit 5,5 one-tenth interference fit relations of catheter stopper 4 and conduit.Vertical extension in the upper port of catheter stopper 4 insertion conduits 5 is greater than plug 2 and fills in the vertical extension in the upper port of body 7.
Lab technician is by the present invention that blood sample is housed after the separation of hydro-extractor, and the liquid in body 7 is impurity layer 11, serum 8, separation gel 9, haemocyte 10 from top to bottom successively, and the upper port of conduit 5 is arranged in impurity layer 11 belows and in serum 8.Now, lab technician only needs first sheathed catheter 6 to be taken off, again plug 2 is upwards extracted together with splash cap 1, switch lever 3 is just extracted catheter stopper 4 out from the upper port of conduit 5, because the suitable for reading of body 7 now opened wide completely, the serum 8 in body 7 enters the upper port of conduit 5 and directly from the lower port of conduit 5, flows out under Action of Gravity Field, until impurity layer 11, with the liquid level of serum 8, drops to while approaching conduit 5 suitable for reading, again catheter stopper 4 is filled in to the suitable for reading of conduit 5, serum 8 stops flowing out at once.
Claims (1)
1. exempt to aspirate middle level directly taking type binary channels developmental tube for one kind, by splash cap, plug, switch lever, catheter stopper, conduit and sheathed catheter form, it is characterized in that: body is columnar, the glass tube of lower end closed, in the upper port of body, be plugged with plug, splash cap is enclosed within on plug, switch lever is the plastic bar of a T font, the upper end of switch lever is in described plug and bonding as a whole with plug, in the catheter stopper of the lower end of switch lever in butyl rubber material, and bonding as a whole with catheter stopper, the material of catheter stopper is butyl rubber, catheter stopper is divided into upper and lower two parts on body, top is up big and down small reverse frustoconic, bottom is most advanced and sophisticated inverted cone down, in the inside of body, there are one and body coaxial inner conductor, and fuse with the bottom of body the conduit being integrated, in the first half of the upper port of conduit in body, the lower port of conduit is stretched out from the bottom of body, the sheathed catheter of butyl rubber material is placed on the lower port of conduit, described catheter stopper is inserted in the upper port of described conduit, catheter stopper becomes interference fit relation with conduit, vertical extension in the upper port of catheter stopper insertion conduit is greater than plug and fills in the vertical extension in the upper port of body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265159.7A CN102788716B (en) | 2012-07-29 | 2012-07-29 | Suction-free middle-layer straight dual-channel test tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265159.7A CN102788716B (en) | 2012-07-29 | 2012-07-29 | Suction-free middle-layer straight dual-channel test tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788716A CN102788716A (en) | 2012-11-21 |
| CN102788716B true CN102788716B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210265159.7A Active CN102788716B (en) | 2012-07-29 | 2012-07-29 | Suction-free middle-layer straight dual-channel test tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN102788716B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439551B (en) * | 2019-07-22 | 2022-04-19 | 同济大学 | Groundwater sample thief and tilting groundwater sampling system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4057499A (en) * | 1973-03-09 | 1977-11-08 | Buono Frank S | Apparatus and method for separation of blood |
| JP2500708B2 (en) * | 1991-04-26 | 1996-05-29 | 株式会社ニッショー | Blood collection tube |
| CN2430679Y (en) * | 2000-04-26 | 2001-05-16 | 李中华 | Test tube type hemostix |
| CN202837026U (en) * | 2012-07-29 | 2013-03-27 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Switch-mode serum intermediate-layer test tube |
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2012
- 2012-07-29 CN CN201210265159.7A patent/CN102788716B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102788716A (en) | 2012-11-21 |
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Owner name: NANTONG CITY CHONGCHUAN TECHNOLOGY VENTURE SERVICE Free format text: FORMER OWNER: NINGBO JIANGDONG JUNFENG MEDICAL TECHNOLOGY CONSULTING CO., LTD. Effective date: 20141231 |
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Effective date of registration: 20141231 Address after: 226000 Jiangsu Province, Nantong City Chongchuan District Chongchuan Road No. 1 Patentee after: Nantong city science and Technology Innovation Service Center Co. Ltd. Address before: Jiangdong District 315000 Zhejiang city of Ningbo Province Yao defile No. 793 Patentee before: NINGBO YINZHOU YUNFAN ENGINEERING CONSULTING CO.,LTD. |