CN2440449Y - Negative pressure blood sampler - Google Patents
Negative pressure blood sampler Download PDFInfo
- Publication number
- CN2440449Y CN2440449Y CN 00249475 CN00249475U CN2440449Y CN 2440449 Y CN2440449 Y CN 2440449Y CN 00249475 CN00249475 CN 00249475 CN 00249475 U CN00249475 U CN 00249475U CN 2440449 Y CN2440449 Y CN 2440449Y
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- blood
- vacuum pump
- blood sampling
- pressure cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a negative pressure blood sampling device, comprising a blood sampling needle, a blood bag, and a blood sampling tube. The blood sampling needle is connected with the blood bag through the blood sampling tube. The blood sampling device also comprises a negative pressure chamber, a vacuum pump, and a pressure meter. The negative pressure chamber is connected and communicated with the vacuum pump through a pipe passage. The pressure meter is connected in series between the vacuum pump and the negative pressure chamber, and the blood bag is arranged inside the negative pressure chamber. When human bodies are phlebotomized by the blood sampling device, the vacuum pump pumps vacuum from the negative pressure chamber, and the pressure in the negative pressure chamber is smaller than the pressure in the outer part. The condition that the blood flows to the blood bag though the blood sampling needle can be expedited. The thin blood sampling needles can be used, and the psychological pressure, the horror, and the painful feeling from persons who are phlebotomized can be reduced.
Description
This utility model relates to the container of blood of human body collection, separation, filtration usefulness, more specifically refers to a kind of negative pressure hemostix.
The blood collection of human body is a kind of special medical technologies means the most common in the medical and health organization, as donating blood of healthy people, various diseases patient's chemical examination etc. all needs to take a blood sample, when gathering blood, vein at first will puncture with the blood taking needle of comparatively big specification, the blood of extracting out enters in the blood bag that directly links to each other with it, for the blood of being gathered is flowed out, reduce the blood coagulation tendency, in general to use thicker blood taking needle, the external diameter of currently used blood taking needle is 1.6-1.8mm, and thick like this external diameter blood taking needle is compared with the blood transfusion needle of 1.2mm and wanted much thick.As patient or blood donor, blood taking needle is thick more, and its psychological pressure is also just big more, and the feared state of mind is also more for significantly increasing; Blood taking needle is thick more, and it is obvious more to keenly feel.
For this reason, the purpose of this utility model is the shortcoming that exists at above-mentioned hemostix, and a kind of negative pressure hemostix is provided.
To achieve these goals, this utility model adopts following scheme: this negative pressure hemostix comprises blood taking needle, blood bag, blood taking tube, blood taking needle is connected by blood taking tube with the blood bag, it is characterized in that: this hemostix also comprises a negative pressure cavity, vacuum pump, Pressure gauge, negative pressure cavity is connected by pipeline with vacuum pump and communicates, Pressure gauge is serially connected with between vacuum pump and the negative pressure cavity, and the blood bag places in the negative pressure cavity.
Because this utility model has increased negative pressure cavity, vacuum pump, Pressure gauge, and the blood bag placed negative pressure cavity, when blood taking needle is drawn blood to human body, vacuum pump carries out evacuation to negative pressure cavity, make the pressure of the interior pressure of negative pressure cavity, flow to the blood bag by blood taking needle comparatively apace thereby quickened blood, therefore less than the outside, can adopt the thinner blood taking needle of external diameter, thereby reduce by the mental pressure of bleeder and the feared state of mind and pain.
Below in conjunction with drawings and Examples, this utility model is done one explains:
Fig. 1 is a structural representation of the present utility model.
See also shown in Figure 1, negative pressure hemostix of the present utility model comprises blood taking needle 1, blood bag 2, blood taking tube 3, blood taking needle 1 is connected by blood taking tube 3 with blood bag 2, in addition, this hemostix also comprises a negative pressure cavity 4, vacuum pump 5, Pressure gauge 6, negative pressure cavity 4 is connected by pipeline 7 with vacuum pump 5 and communicates, and Pressure gauge 6 is serially connected with between vacuum pump 5 and the negative pressure cavity 4, and blood bag 2 places in the negative pressure cavity 4.When using such negative pressure hemostix when human body is drawn blood, utilize 5 pairs of negative pressure cavities of vacuum pump 4 to carry out evacuation, make the pressure of its interior pressure less than the outside, its objective is that being convenient to blood can flow into the blood bag 2 that places negative pressure cavity quickly, as long as in general to reach 3-10Kpa just passable for the pressure in the negative pressure cavity 4, the external diameter of the blood taking needle 1 that adopted this moment just can reduce to 1.2-1.4mm by the 1.6-1.8mm of original employing.
Above-mentioned negative pressure cavity 4 can adopt rigid transparent material on making, adopt rectangular cavities in shape, be divided into loam cake and lower cover two parts, periphery between the upper and lower covers is stained with sealant tape, the both sides of negative pressure cavity 4 are respectively equipped with the circular hole that can place blood taking tube 3 and pipeline 7, when blood taking tube 3 is put into negative pressure cavity 4, be with plastic conduit or silica gel tube 8 outside one section in blood taking tube 3 and negative pressure cavity 4 chamber walls, can prevent different caused blood taking tube 3 distortion of negative pressure cavity external and internal pressure like this.
In order to control, also can on the pipeline 7 between negative pressure cavity 4 and the vacuum pump 5, be serially connected with pressure controller 9 to the pressure size in the negative pressure cavity 4.
Claims (3)
1, a kind of negative pressure hemostix, this negative pressure hemostix comprises blood taking needle, blood bag, blood taking tube, blood taking needle is connected by blood taking tube with the blood bag, it is characterized in that: this hemostix also comprises a negative pressure cavity, vacuum pump, Pressure gauge, negative pressure cavity is connected by pipeline with vacuum pump and communicates, Pressure gauge is serially connected with between vacuum pump and the negative pressure cavity, and the blood bag places in the negative pressure cavity.
2, negative pressure hemostix as claimed in claim 1 is characterized in that: described blood taking tube passes a section of negative pressure cavity chamber wall and is with plastic conduit or silica gel tube outward.
3, negative pressure hemostix as claimed in claim 1 or 2 is characterized in that: be serially connected with pressure controller on the pipeline between described negative pressure cavity and the vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249475 CN2440449Y (en) | 2000-09-29 | 2000-09-29 | Negative pressure blood sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00249475 CN2440449Y (en) | 2000-09-29 | 2000-09-29 | Negative pressure blood sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2440449Y true CN2440449Y (en) | 2001-08-01 |
Family
ID=33607913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00249475 Expired - Fee Related CN2440449Y (en) | 2000-09-29 | 2000-09-29 | Negative pressure blood sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2440449Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104414651A (en) * | 2013-08-28 | 2015-03-18 | 周荣佼 | Negative-pressure automatic examining and blood sampling device |
-
2000
- 2000-09-29 CN CN 00249475 patent/CN2440449Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104414651A (en) * | 2013-08-28 | 2015-03-18 | 周荣佼 | Negative-pressure automatic examining and blood sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BLOOD TRANSFUSION TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: BLOOD PRODUCTS AND BLOOD TRASFUSION EQUIPMENT AND MATERIALS CORP. OF SHANGHAI BL |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Shanghai Blood-Transfusion Technology Co., Ltd. Patentee before: Blood Products and Transfusion Apparatus Management Corp., Shanghai Blood Centre |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |