CN202235400U - Visible return blood taking needle for vacuum blood taking tube - Google Patents
Visible return blood taking needle for vacuum blood taking tube Download PDFInfo
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- CN202235400U CN202235400U CN2011203269952U CN201120326995U CN202235400U CN 202235400 U CN202235400 U CN 202235400U CN 2011203269952 U CN2011203269952 U CN 2011203269952U CN 201120326995 U CN201120326995 U CN 201120326995U CN 202235400 U CN202235400 U CN 202235400U
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- needle
- blood taking
- blood
- pipe close
- taking needle
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Abstract
The utility model relates to a novel medical instrument, in particular to a visible return blood taking needle for a vacuum blood taking tube; the visible return blood taking needle is characterized in that a vein blood taking needle bed is connected with a pipe close puncture needle bed through an external conical joint; the center of a transparent hollow conical vein puncture needle bed is spliced with a vein blood taking needle in an insertion manner; one end of the pipe close puncture needle bed is embedded into the vein blood taking needle bed, and a pipe close puncture needle is mounted at the other end; and a hemostasis jacket is mounted outside the pipe close puncture needle. The visible return blood taking needle for the vacuum blood taking tube has the advantages that air backflow is formed through a simple structural form, so that the return blood condition of the blood taking needle can be convenient to observe; moreover, the hemostasis jacket made of elastic materials can effectively block a needle hole to prevent blood from flowing out.
Description
[technical field]
This utility model relates to a kind of new type medical equipment, specifically a kind of visible blood-back blood taking needle that is used for vacuum test tube.
[background technology]
Collection venous blood BIAO and BEN is used for Clinical Laboratory has become conventional medical detection means, and the acquisition of venous blood BIAO and BEN mainly is through the disposable syringe blood drawing or uses vein blood taking needle to cooperate the vacuum blood collection blood sampling tube.In recent years, vein blood taking needle cooperates totally-enclosed, pollution-free with it, the quantitative advantage accurately of vacuum blood collection blood sampling tube to become the first-selection that the venous blood BIAO and BEN is gathered by medical institutions.Venous blood collection needle construction as vacuum test tube and vein connectivitv tool is varied, and commonly used mainly is two-way be flexible coupling pin and the two-way hard pin that is connected that is similar to the entry needle structure that is similar to the venous transfusion needle construction.Common two-way hard connection pin on the market; Generally form by vein blood taking needle, pipe close puncture needle, haemostatic sheath and needle stand etc.; Its major defect is whether successfully can't observe venipuncture; Lack observation window and see successful sign---the blood back of puncture, cause certain difficulty for so clinical use, cause the blood sampling failure easily.
In recent years; The two-way hard connection blood taking needle that some visible blood-flows also occurred; A kind of blood taking needle of visible blood-flow is disclosed like Chinese patent 200520118666.3; It comprises structures such as blood taking needle, needle stand, needle for inserting bottle, blood resistance unit, and wherein needle stand is the hollow transparent structure, is convenient to observe the successfully effusive blood back in back of taking a blood sample; Chinese patent 201020516176.X also discloses a kind of blood taking needle of visible blood-flow; Comprise vein blood taking needle, cannula needle and blood sampling needle stand; The cannula needle outside is provided with blood resistance unit; The blood taking needle base rear end is provided with the blood back cavity of a hollow, and a hydrophobic spool piece that communicates with blood back cavity is installed in the cannula needle holder outside; Chinese patent 200920202652.8 discloses a kind of blood back type blood taking needle, includes transparent needle stand, syringe needle and gum cover, and needle stand is provided with the through hole that supplies syringe needle to penetrate; Syringe needle is fixed through penetrating on the needle stand through hole and needle stand; And two cutting tips of syringe needle extend to respectively outside the needle stand, and gum cover is sheathed on one of them cutting tip place of syringe needle, and gum cover and needle stand sealing; Leave the blood back passage between the inwall of gum cover and the outer peripheral face of syringe needle; Needle stand is provided with the discharge chamber with extraneous conducting, is provided with the air filtration part that blocks water in the discharge chamber, is provided with interface channel between the through hole of needle stand and the outer peripheral face of syringe needle; Interface channel respectively with blood back passage and discharge chamber conducting, relatively seal between opening part and the syringe needle of through hole of the other end of an end on the needle stand and seal through sealing member with gum cover.
The complex process that has in the above product; Like Chinese patent 201020516176.X hydrophobic spool piece need be installed; Chinese patent 200920202652.8 needs the air filtration part that blocks water is installed, and both purposes all are that blood back cavity is communicated with extraneous air, forms air and refluxes; Chinese patent 200520118666.3 is not considered the problem that air refluxes, and in practical application, is difficult to realize the effect of visible blood-flow.
[summary of the invention]
The purpose of this utility model is to overcome the problems referred to above, and a kind of blood taking needle of visible blood-flow is provided.
To achieve these goals; A kind of visible blood-back blood taking needle that is used for vacuum test tube of this utility model design; It is coniform to it is characterized in that the vein blood taking needle needle stand is hollow transparent; The centre bore of cone tip inserts and connects vein blood taking needle, and the circular cone bottom of vein blood taking needle needle stand links to each other with the mode of cone joint beyond the pipe close Paracentesis needle holder, and the middle chock plug structure of pipe close Paracentesis needle holder just in time embeds and is connected on the venous blood collection needle stand; The centre bore of pipe close Paracentesis needle holder is equipped with the pipe close puncture needle, in the outside of pipe close puncture needle haemostatic sheath is installed.
Said vein blood taking needle needle stand, pipe close puncture needle needle stand are processed by transparent material, and inner hollow becomes the visible blood-flow chamber, and blood back cavity inside is separated into the space of two intercommunications, i.e. blood flow pass and air backflow part.
Said haemostatic sheath is processed by elastomeric material, can when blood taking needle is extracted pipe close, upspring rapidly and block the blood taking needle pin hole.
The venipuncture needle needle stand links to each other with conical structure beyond the pipe close puncture needle needle stand and forms blood back cavity jointly; The vein blood taking needle needle stand is a hollow transparent cone; Pipe close puncture needle needle stand one end bonding pipe close puncture needle, the other end is a tubular structure, the internal diameter of tubular structure is slightly larger than the venipuncture needle external diameter; And afterbody has groove; The groove top end opening is positioned at the top of venipuncture needle needle stand inwall, and whole like this blood back cavity inside is separated into two parts by the tubular structure of pipe close puncture needle needle stand afterbody, and a part is the areola that tubular structure outer wall and venipuncture needle needle stand inwall are formed; This cavity is as the air backflow part of blood back cavity; Another part is by inner, the pipe close puncture needle inner blood outflow pathway jointly formed inner with vein blood taking needle of tubular structure, and two parts can form air in use and reflux through the vertical groove intercommunication of pipe close puncture needle needle stand afterbody tubular structure.
This utility model compared with prior art, its advantage is: form air through simple structure and reflux, can observe the blood back situation of blood taking needle easily, and the haemostatic sheath that has adopted elastomeric material to process, effectively block pin hole, avoid blood to flow out.
[description of drawings]
Fig. 1 is the vein blood taking needle and the needle stand of this utility model;
Fig. 2 is the pipe close puncture needle and the needle stand of this utility model;
Fig. 3 is the pipe close puncture needle haemostatic sheath of this utility model;
Fig. 4 is the overall structure sketch map of this utility model.
[specific embodiment]
Below in conjunction with accompanying drawing, this utility model is further specified.
Vein blood taking needle as shown in Figure 1 is bonded on the conical needle stand of hollow transparent; Pipe close puncture needle as shown in Figure 2 is bonded on the pipe close puncture needle needle stand; The middle part of pipe close puncture needle needle stand is hollow cylindrical; Afterbody is the hollow tubular structure of a top band groove, and needle stand is processed by transparent material.The version of above-mentioned two needle stands through the outer cone joint is connected and entangles firm and becomes the visible blood-flow of hollow transparent chamber.Pipe close puncture needle haemostatic sheath as shown in Figure 3 is processed the outside that is fixed on the pipe close puncture needle by elastomeric material, and haemostatic sheath is slightly longer than pipe close puncture needle, can block pipe close puncture needle needle point very easily.After connecting, above-mentioned 3 parts promptly form visible blood-back blood taking needle (as shown in Figure 4).The visible blood-flow intracavity portion of two needle stand compositions is separated into two spaces: by the inner blood flow pass of forming jointly of the hollow tubular structure of vein blood taking needle inside, pipe close puncture needle inside and pipe close puncture needle needle stand afterbody; Space between the outer wall of vein blood taking needle needle stand inwall and pipe close puncture needle needle stand afterbody tubular structure becomes the air back cavity.The inner two parts of blood back cavity communicate through the vertical groove of pipe close puncture needle needle stand afterbody tubular structure, and the existence of air back cavity is convenient to when blood sampling, admit the air that is flowed out the blood extruding, makes things convenient for blood to flow out smoothly, gives full play to the effect of blood back cavity.
During use, behind vein blood taking needle puncture vein, then blood is dirty along vein blood taking needle if puncture successfully; Originally the air in the needle tubing is extruded, and through the groove entering air back cavity of pipe close puncture needle needle stand afterbody tubular structure, blood flows out to be routed to along blood and reaches pipe close puncture needle needle point; The pipe close puncture needle is inserted the vacuum test tube plug downwards; After the pipe close of haemostatic sheath top and vacuum test tube was pierced, blood was promptly got into vacuum test tube by the vacuum suction in the vacuum test tube, because blood back cavity is transparent; Can very clearly see that blood refluxes, and reaches the effect of visible blood-flow.Blood sampling is extracted the pipe close puncture needle after finishing, and haemostatic sheath is upspring and blocked pipe close puncture needle needle point, and whole blood sampling flow process is accomplished.
Claims (3)
1. a visible blood-back blood taking needle that is used for vacuum test tube is characterized in that the vein blood taking needle needle stand links to each other with the version of cone joint beyond the pipe close puncture needle needle stand; The bonding vein blood taking needle of coniform venipuncture needle stand central authorities' insertion of clear hollow, pipe close Paracentesis needle holder one end embeds in the vein blood taking needle needle stand, and the other end is equipped with the pipe close puncture needle, in the outside of pipe close puncture needle haemostatic sheath is installed.
2. a kind of visible blood-back blood taking needle that is used for vacuum test tube as claimed in claim 1; It is characterized in that said vein blood taking needle needle stand, pipe close puncture needle needle stand process by transparent material; Inner hollow becomes the visible blood-flow chamber; Blood back cavity inside is separated into the space of two intercommunications, i.e. blood flow pass and air backflow part by the pipe close puncture needle needle stand tail pipe of clear hollow.
3. a kind of visible blood-back blood taking needle that is used for vacuum test tube as claimed in claim 1 is characterized in that pipe close puncture needle outside is equipped with haemostatic sheath, is processed by elastomeric material, can when blood taking needle is extracted pipe close, upspring rapidly and block the blood taking needle pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203269952U CN202235400U (en) | 2011-09-02 | 2011-09-02 | Visible return blood taking needle for vacuum blood taking tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203269952U CN202235400U (en) | 2011-09-02 | 2011-09-02 | Visible return blood taking needle for vacuum blood taking tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202235400U true CN202235400U (en) | 2012-05-30 |
Family
ID=46096717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203269952U Expired - Lifetime CN202235400U (en) | 2011-09-02 | 2011-09-02 | Visible return blood taking needle for vacuum blood taking tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202235400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495932A (en) * | 2019-09-18 | 2019-11-26 | 河南曙光健士医疗器械集团股份有限公司 | A kind of safety-type injection needle scalpel |
-
2011
- 2011-09-02 CN CN2011203269952U patent/CN202235400U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495932A (en) * | 2019-09-18 | 2019-11-26 | 河南曙光健士医疗器械集团股份有限公司 | A kind of safety-type injection needle scalpel |
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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 | ||
| CP03 | Change of name, title or address |
Address after: 201609 Shanghai City, Songjiang District Road No. 59 leaf Yexie town Patentee after: Precision medical products (Shanghai) Co., Ltd. Address before: 201609 Shanghai City, Songjiang District Road No. 100 -3 Yexie town leaves Patentee before: Shanghai Kehua Laboratory Medicine Product Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |