CN212089558U - Negative pressure blood collection tube - Google Patents
Negative pressure blood collection tube Download PDFInfo
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- CN212089558U CN212089558U CN202020404094.XU CN202020404094U CN212089558U CN 212089558 U CN212089558 U CN 212089558U CN 202020404094 U CN202020404094 U CN 202020404094U CN 212089558 U CN212089558 U CN 212089558U
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Abstract
The utility model discloses a negative pressure blood sampling tube, a rubber plug is arranged at the tube orifice at the top end of the tube body, a tube cap is arranged above the rubber plug at the top of the tube body, and the upper end of the rubber plug is fixedly connected with the inner wall of the tube cap; a puncture through hole convenient for puncture is formed in the pipe cap, a sealing puncture pad is arranged above the puncture through hole in the pipe cap, a fixed block is fixedly arranged on one side of the pipe cap, and a pressurizing device used for increasing negative pressure in the pipe body is arranged in the fixed block; supercharging device is including setting up the inside rubber bag at the fixed block, rubber bag top is connected with breathing pipe and outlet duct, the other end of breathing pipe passes fixed block and pipe cap and extends to the rubber buffer bottom and is linked together with the body, the breathing pipe is close to rubber bag's one end and the inside check valve that all is provided with of outlet duct, fixed block one side can be opened and shut through the buckle and be connected with the side cap, can make intraductal sufficient negative pressure that keeps, easy operation, the practicality is strong.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically a negative pressure blood sampling tube.
Background
The vacuum blood collection tube is a disposable negative pressure vacuum glass tube capable of realizing quantitative blood collection and needs to be matched with a venous blood collection needle for use, the principle of the vacuum blood collection tube is that a blood collection tube test tube with a head cover is pre-pumped into different vacuum degrees, venous blood is automatically and quantitatively collected by utilizing the negative pressure of the vacuum blood collection tube, and one end of the blood collection needle penetrates into a vein of a human body and then the other end of the blood collection tube is inserted into a rubber plug of the vacuum blood collection tube. Human venous blood is inside the vacuum test tube, under the effect of negative pressure, through blood taking needle suction blood specimen container, under a venipuncture, can realize that multitube gathers and does not take place to reveal.
The current clinical blood sampling uses the syringe under the condition of large blood sampling amount, the current syringe adopts 200 ml of blood and needs two nurses to operate for more than half an hour, the blood sampling of one tube and one tube wastes manpower, and the efficiency is low.
In view of the above, an improved negative pressure blood collection tube is now designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a negative pressure blood sampling tube to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a negative pressure blood collection tube is characterized in that a rubber plug is arranged at a tube opening at the top end of a tube body, a tube cap is arranged above the rubber plug at the top of the tube body, and the upper end of the rubber plug is fixedly connected with the inner wall of the tube cap; a puncture through hole convenient for puncture is formed in the pipe cap, a sealing puncture pad is arranged above the puncture through hole in the pipe cap, a fixed block is fixedly arranged on one side of the pipe cap, and a pressurizing device used for increasing negative pressure in the pipe body is arranged in the fixed block; supercharging device is including setting up the inside rubber gasbag at the fixed block, rubber gasbag top is connected with breathing pipe and outlet duct, the other end of breathing pipe passes fixed block and pipe cap and extends to the rubber buffer bottom and be linked together with the body, the breathing pipe is close to the inside check valve that all is provided with of one end and the outlet duct of rubber gasbag, fixed block one side can open and shut through the buckle and be connected with the side cap.
Preferably, a negative pressure cavity is arranged below the puncture through hole in the rubber plug.
Preferably, a concave puncture guide groove is arranged on the upper surface of the sealing puncture pad corresponding to the puncture through hole.
Preferably, the outer surface of the pipe body is provided with scale marks convenient for observation.
Preferably, the volume of the tube body is 200 ml.
Preferably, the bottom of the pipe body is of a circular arc structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses the inside negative pressure chamber that is provided with of rubber buffer among the device, when taking a blood sample and operating, when the syringe needle of blood taking needle punctures the stopper wall that punctures the rubber buffer through the puncture through-hole behind the sealed puncture pad and enters into the negative pressure intracavity, under the effect of pressure difference, the air in the blood taking needle can flow into the negative pressure intracavity, can clear away remaining air in the blood taking needle, has guaranteed the purity of blood sample, and the practicality is strong.
2. The utility model discloses the position that sealed puncture gasket upper surface corresponds the puncture through-hole among the device is provided with recessed puncture guiding groove, when the blood sampling, only need puncture guiding groove department with the blood taking needle puncture just can be with the accurate puncture through-hole that pierces of blood taking needle, the blood taking needle of being convenient for punctures the exact position, improves the accuracy of operation.
3. The scale marks convenient to observe are arranged on the outer surface of the tube body, so that the blood volume for blood sampling can be observed conveniently, excessive or insufficient blood sampling is avoided, and the practicability is high; the volume of body is 200 milliliters, uses when being convenient for clinical need gather 200 milliliters phlebotomy, and present syringe is adopted 200 milliliters blood and is needed two nurses to operate more than half an hour, uses the utility model discloses the device just can accomplish the operation alone, convenient to use.
4: the device of the utility model is provided with the supercharging device, and the air in the tube body can be sucked into the air bag through the air suction pipe by extruding the rubber air bag, and then the air is discharged through the air outlet pipe, so that the condition of insufficient air pressure in the tube body is avoided, and the normal operation of blood sampling is ensured; the bottom of body is convex structure, increases the resistance to compression degree of body, increases the practicality of whole device.
Drawings
FIG. 1 is a schematic view of a vacuum blood collection tube.
FIG. 2 is a schematic view showing the inner cross section of a negative pressure blood collection tube.
Fig. 3 is a schematic structural view of the inside of a rubber stopper in a vacuum blood collection tube.
In the figure: the puncture needle comprises a tube body 1, scale marks 11, a tube cap 2, a sealed puncture pad 21, a puncture through hole 22, a puncture guide groove 23, a fixing block 3, a rubber air bag 31, an air suction tube 32, an air outlet tube 33, a one-way valve 34, a side cover 35, a rubber plug 4 and a negative pressure cavity 41.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in an embodiment of the present invention, a negative pressure blood collection tube includes a tube body 1 of vacuum negative pressure, a rubber plug 4 is disposed at a tube opening at a top end of the tube body 1, a tube cap 2 is disposed above the rubber plug 4 at a top of the tube body 1, and an upper end of the rubber plug 4 is fixedly connected to an inner wall of the tube cap 2;
a puncture through hole 22 convenient for puncture is formed in the pipe cap 2, a sealing puncture pad 21 is arranged above the puncture through hole 22 in the pipe cap 2, a fixed block 3 is fixedly arranged on one side of the pipe cap 2, and a pressurizing device used for increasing negative pressure in the pipe body 1 is arranged in the fixed block 3;
supercharging device is including setting up at the inside rubber gasbag 31 of fixed block 3, rubber gasbag 31 top is connected with breathing pipe 32 and outlet duct 33, the other end of breathing pipe 32 passes fixed block 3 and pipe cap 2 and extends to rubber buffer 4 bottom and is linked together with body 1, breathing pipe 32 is close to the inside check valve 34 that all is provided with of one end and the outlet duct 33 of rubber gasbag 31, 3 one side of fixed block can open and shut through the buckle and be connected with side cap 35.
The position that the sealed puncture pad 21 upper surface corresponds puncture through-hole 22 is provided with recessed puncture guiding groove 23, when the blood sampling, only need with the blood taking needle puncture guiding groove department just can be with the accurate puncture of blood taking needle puncture through-hole 22 in, the blood taking needle of being convenient for punctures accurate position, improves the accuracy of operation.
The outer surface of the tube body 1 is provided with scale marks 11 convenient for observation, so that the blood volume of blood sampling can be observed conveniently, excessive or insufficient blood sampling is avoided, and the practicability is high.
The volume of body 1 is 200 milliliters, uses when being convenient for clinical needs to gather 200 milliliters phlebotomy, and present syringe is adopted 200 milliliters blood and is needed two nurses to operate more than half an hour, uses the utility model discloses the device just can accomplish the operation alone, convenient to use.
The bottom of body 1 is convex structure, increases the resistance to compression degree of body, increases the practicality of whole device.
The utility model discloses a theory of operation is: when carrying out the blood sampling operation, use the syringe needle of blood taking needle to puncture sealed puncture pad after and puncture the stopper wall that the rubber buffer enters into the negative pressure intracavity through the puncture through-hole and temporarily do and stop, under the effect of pressure difference, air in the blood taking needle can flow into the negative pressure intracavity, can clear away remaining air in the blood taking needle, then continue the downward puncture with the blood taking needle, reach intraductal beginning blood sampling, under the circumstances that intraductal atmospheric pressure is not enough, open the side cap of fixed block, through extrusion rubber gasbag, can inhale the gasbag with the air in the body through breathing pipe and check valve, then discharge gas through the check valve in outlet duct and the outlet duct, make intraductal sufficient negative pressure that keeps, guarantee the normal clear of blood sampling operation, and is simple in operation, therefore, the clothes.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A negative pressure blood collection tube comprises a tube body (1) with vacuum negative pressure, and is characterized in that a rubber plug (4) is arranged at the tube opening at the top end of the tube body (1), a tube cap (2) is arranged above the rubber plug (4) at the top of the tube body (1), and the upper end of the rubber plug (4) is fixedly connected with the inner wall of the tube cap (2);
a puncture through hole (22) convenient for puncture is formed in the pipe cap (2), a sealed puncture pad (21) is arranged above the puncture through hole (22) in the pipe cap (2), a fixed block (3) is fixedly arranged on one side of the pipe cap (2), and a pressurizing device used for increasing negative pressure in the pipe body (1) is arranged in the fixed block (3);
supercharging device is including setting up rubber gasbag (31) inside fixed block (3), rubber gasbag (31) top is connected with breathing pipe (32) and outlet duct (33), the other end of breathing pipe (32) passes fixed block (3) and pipe cap (2) and extends to rubber buffer (4) bottom and body (1) and is linked together, one end and outlet duct (33) inside that breathing pipe (32) are close to rubber gasbag (31) all are provided with check valve (34), but fixed block (3) one side is connected with side cap (35) through the buckle open and shut.
2. The negative pressure blood collection tube according to claim 1, wherein a negative pressure cavity (41) is arranged in the rubber stopper (4) below the puncture through hole (22).
3. The negative pressure blood collection tube according to claim 1, wherein the upper surface of the sealing puncture pad (21) is provided with a concave puncture guide groove (23) at a position corresponding to the puncture through hole (22).
4. The negative pressure blood collection tube according to claim 1, wherein the outer surface of the tube body (1) is provided with scale marks (11) for easy observation.
5. The negative pressure blood collection tube according to claim 1, wherein the volume of the tube body (1) is 200 ml.
6. The negative pressure blood collection tube according to claim 1, wherein the bottom of the tube body (1) has a circular arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404094.XU CN212089558U (en) | 2020-03-26 | 2020-03-26 | Negative pressure blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020404094.XU CN212089558U (en) | 2020-03-26 | 2020-03-26 | Negative pressure blood collection tube |
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| Publication Number | Publication Date |
|---|---|
| CN212089558U true CN212089558U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020404094.XU Active CN212089558U (en) | 2020-03-26 | 2020-03-26 | Negative pressure blood collection tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113498776A (en) * | 2021-06-17 | 2021-10-15 | 深圳逗点生物技术有限公司 | Biological transport system, biological transport method, and blood cell preservation system |
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2020
- 2020-03-26 CN CN202020404094.XU patent/CN212089558U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113498776A (en) * | 2021-06-17 | 2021-10-15 | 深圳逗点生物技术有限公司 | Biological transport system, biological transport method, and blood cell preservation system |
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