CN211749638U - Quantitative blood collection tube - Google Patents

Abstract

The utility model discloses a relate to quantitative heparin tube technical field specifically is quantitative heparin tube, including quantitative heparin tube body, quantitative heparin tube body is cylindrical tubular structure, the upper end opening part sealing plug of quantitative heparin tube body has the sealing plug, the cross-section of sealing plug is T font structure, the intermediate position of sealing plug activity runs through from top to bottom has the blood sampling piston rod. The utility model strictly controls the negative pressure to achieve the effect of stopping suction once enough blood volume is collected, thereby ensuring successful blood collection; the utility model discloses alleviate patient's misery, improve patient's satisfaction, reduce nurse's work load.

Description

Quantitative blood collection tube

technical field

The utility model relates to the technical field of quantitative blood collection tubes, in particular to quantitative blood collection tubes.

Background technique

For blue-headed blood collection test tubes and black-headed blood collection test tubes, nurses cannot strictly control the amount of blood collected during blood collection, which leads to the need to re-collect blood, which not only increases the pain of patients, causes patients' dissatisfaction, but also increases the workload of nurses.

To this end, we propose a quantitative blood collection tube to solve the above drawbacks well.

Utility model content

The purpose of the present invention is to provide a quantitative blood collection tube to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a quantitative blood collection tube, including a quantitative blood collection tube body, the quantitative blood collection tube body is in a cylindrical tubular structure, and a sealing plug is provided at the upper opening of the quantitative blood collection tube body. The cross section of the sealing plug is in a T-shaped structure, the middle position of the sealing plug is moved up and down through a blood collection piston rod, the lower end surface of the quantitative blood collection tube body is fixedly welded with a clamp, and the clamp is clamped on the upper surface of the rubber pad In the clamping slot of the sealing plug, a blood circulation pipe is arranged inside the right end of the sealing plug, and a connecting pipe is communicated with the upper end of the blood circulation pipe. The upper sleeve is provided with a blood collection tube, the end of the blood collection tube away from the connecting tube is integrally connected with a blood collection needle, and the end of the blood collection piston rod that passes through the lower surface of the sealing plug and is located inside the body of the quantitative blood collection tube is fixedly provided with a rubber stopper. A quantitative adjustment nut is connected to the outer ring of the piston rod through threaded fitting, and the quantitative adjustment nut is arranged above the sealing plug.

Preferably, the upper end of the quantitative blood collection tube body is open, and the lower end of the quantitative blood collection tube body is flush.

Preferably, the length of the blood collection piston rod is the same as the length of the quantitative blood collection tube body, and the blood collection piston rod has a cylindrical rod-like structure with a T-shaped cross-section.

Preferably, the right side of the blood collection piston rod is provided with an upper scale, and the right side of the quantitative blood collection tube body is provided with a lower scale.

Preferably, the rubber pad has a hemispherical structure, and the spherical surface of the rubber pad is downward.

Preferably, the blood circulation conduit has an L-shaped pipe-like structure, and the lower end of the blood circulation conduit communicates with the interior of the quantitative blood collection tube body.

Preferably, the rubber plug is sealed on the upper end of the quantitative blood collection tube body in a disc-shaped structure, and the diameter of the rubber plug is the same as the inner diameter of the tube orifice of the quantitative blood collection tube body.

Preferably, an air hole is provided at the lower left end of the quantitative blood collection tube body in communication with the inside and outside, and the diameter of the air hole is smaller than the width of the rubber stopper.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The utility model strictly controls the negative pressure, so as to achieve the effect of stopping suction once sufficient blood volume is taken, thereby making blood collection successful;

2. The utility model relieves the pain of the patient, improves the satisfaction of the patient, and reduces the workload of the nurse.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the state schematic diagram of the utility model when blood is collected;

Fig. 3 is the enlarged schematic diagram of the structure at place A in Fig. 1 of the present utility model;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1 of the present utility model.

In the figure: Quantitative blood collection tube body 1, blood collection piston rod 2, quantitative adjustment nut 3, upper scale 4, sealing plug 5, blood collection needle 6, blood collection hose 7, connecting tube 8, blood circulation pipe 9, rubber stopper 10, lower Scale 11, rubber pad 12, clip 13, clip slot 14.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1 and FIG. 4 , the present utility model provides a technical solution: a quantitative blood collection tube, including a quantitative blood collection tube body 1, the quantitative blood collection tube body 1 has a cylindrical tubular structure, and the upper end opening of the quantitative blood collection tube body 1 is located. The sealing plug is provided with a sealing plug 5, the section of the sealing plug 5 is in a T-shaped structure, a blood collection piston rod 2 is moved up and down in the middle position of the sealing plug 5, and a clamp head 13 is fixedly welded on the lower end surface of the quantitative blood collection tube body 1, and the clamp head 13 It is engaged in the slot 14 on the upper surface of the rubber pad 12, and plays the role of connecting the rubber pad 12, so that the bottom of the quantitative blood collection tube body 1 is not easily damaged when it is placed on the shelf, and has a high protective effect.

Please refer to FIGS. 1 , 2 and 3 , a blood circulation pipe 9 is arranged inside the right end of the sealing plug 5 , and a connecting pipe 8 is communicated with the upper end of the blood circulation pipe 9 . On the right side of the plug 5, a blood collection hose 7 is sleeved on the connection pipe 8, and the blood collection needle 6 is integrally connected with one end of the blood collection hose 7 away from the connection pipe 8 for blood collection;

Please refer to FIG. 1 and FIG. 2 , a rubber plug 10 is fixedly arranged at one end of the blood collection piston rod 2 that passes through the lower surface of the sealing plug 5 and is located inside the quantitative blood collection tube body 1 , and the outer ring of the blood collection piston rod 2 is connected by threaded fitting. There is a quantitative adjustment nut 3 , and the quantitative adjustment nut 3 is arranged above the sealing plug 5 .

Please refer to FIG. 1 , wherein the upper end of the quantitative blood collection tube body 1 is open to facilitate blood collection connection, and the lower end of the quantitative blood collection tube body 1 is flush.

Please refer to Fig. 2, wherein, the length of the blood collection piston rod 2 is consistent with the length of the quantitative blood collection tube body 1, and the blood collection piston rod 2 has a cylindrical rod-shaped structure with a T-shaped cross-section, which is convenient for the blood collection piston rod 2 to control the amount of blood collection, and blood collection. The piston rod 2 is matched with the quantitative blood collection tube body 1 .

Referring to FIG. 1 , an upper scale 4 is provided on the right side of the blood collection piston rod 2 , and a lower scale 11 is provided on the right side of the quantitative blood collection tube body 1 , which is convenient for observation and blood collection and use.

Please refer to FIG. 1 and FIG. 4 , wherein, the rubber pad 12 has a semi-spherical structure, the spherical surface of the rubber pad 12 is downward, and has strong protection to avoid damage to the bottom of the quantitative blood collection tube body 1 .

Please refer to FIG. 1 , wherein the blood circulation pipe 9 has an L-shaped pipe-like structure, and the lower end of the blood circulation pipe 9 is connected to the interior of the quantitative blood collection tube body 1 to ensure the passage of blood for blood collection and blood collection.

Please refer to FIG. 1 and FIG. 2 , wherein, the rubber stopper 10 is sealed on the upper end of the quantitative blood collection tube body 1 in a disc-shaped structure. When the 10 rises and falls, the air pressure between the rubber stopper 10 inside the quantitative blood collection tube body 1 and the sealing plug 5 changes, and blood collection and blood collection are performed.

Please refer to FIG. 2 , there is an air hole at the lower left end of the quantitative blood collection tube body 1 that communicates with the inside and outside. The diameter of the air hole is smaller than the width of the rubber stopper 10, which ensures that the rubber stopper 10 moves up and down, and when the rubber stopper 10 moves to the bottom It can also cover the air holes and will not leak.

working principle:

During blood collection, adjust the quantitative adjustment nut 3 to the corresponding blood scale that needs to be taken on the blood collection piston rod 2, the blood collection needle 6 collects blood from the patient, press down the blood collection piston rod 2, and the rubber stopper 10 at the lower end of the blood collection piston rod 2 is in the quantitative collection tube. The body 1 moves down to generate negative pressure, so that the blood collected by the blood collection needle 6 flows through the blood collection hose 7, the connecting tube 8, and the blood circulation pipe 9 into between the sealing plug 5 and the rubber plug 10 inside the quantitative blood collection tube body 1. Then the blood collection piston rod 2 descends to the quantitative position and is blocked by the quantitative adjustment nut 3 and cannot be lowered, so as to achieve the purpose of quantitative blood collection. When the blood is collected for testing, the blood collection hose 7 can be pulled out, and the blood collection piston rod 2 can be moved up, so that the blood from the connection The tube 8 slowly flows out, and a certain amount of blood can be taken at one time, and it can also be taken all at once. It has strong practicability and is suitable for various blood tests. Pull out, to ensure that the blood will not be affected by external pollution detection, suitable for promotion.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. Quantitative blood collection tube, including quantitative blood collection tube body (1), its characterized in that: the quantitative blood collection tube comprises a quantitative blood collection tube body (1) and is characterized in that the quantitative blood collection tube body (1) is of a cylindrical tubular structure, a sealing plug (5) is arranged at an upper end opening of the quantitative blood collection tube body (1), the cross section of the sealing plug (5) is of a T-shaped structure, a blood collection piston rod (2) penetrates through the middle position of the sealing plug (5) in an up-and-down moving mode, a clamping head (13) is fixedly welded at the lower end surface of the quantitative blood collection tube body (1), the clamping head (13) is clamped in a clamping groove (14) in the upper surface of a rubber gasket (12), a blood circulation pipeline (9) is arranged inside the right end of the sealing plug (5), a connecting tube (8) is communicated with the upper end of the blood circulation pipeline (9), the connecting tube (8) is fixedly arranged on the right side surface of the sealing plug (5) in a circular tubular shape, a blood collection, blood sampling piston rod (2) pass sealing plug (5) lower surface and are located the fixed rubber buffer (10) that is provided with of one end of ration heparin tube body (1) inside, the outer lane department of blood sampling piston rod (2) is connected with ration adjusting nut (3) through screw-thread fit, ration adjusting nut (3) set up the top at sealing plug (5).

2. The quantitative blood collection tube according to claim 1, wherein: the upper end opening of ration heparin tube body (1), the lower extreme parallel and level of ration heparin tube body (1).

3. The quantitative blood collection tube according to claim 1, wherein: the length of the blood sampling piston rod (2) is consistent with that of the quantitative blood sampling tube body (1), and the blood sampling piston rod (2) is of a cylindrical rod-shaped structure with a T-shaped section.

4. The quantitative blood collection tube according to claim 1, wherein: the right side of blood sampling piston rod (2) is provided with scale (4), the right side of ration heparin tube body (1) is provided with down scale (11).

5. The quantitative blood collection tube according to claim 1, wherein: the rubber pad (12) is in a semi-sphere structure, and the spherical surface of the rubber pad (12) faces downwards.

6. The quantitative blood collection tube according to claim 1, wherein: the blood circulation pipeline (9) is of an L-shaped pipeline structure, and the lower end of the blood circulation pipeline (9) is communicated with the inside of the quantitative blood collection tube body (1).

7. The quantitative blood collection tube according to claim 1, wherein: rubber buffer (10) are the upper end of disc-shaped structure sealed at ration blood collection tube body (1), and the diameter of rubber buffer (10) is unanimous with the mouth of pipe internal diameter of ration blood collection tube body (1).

8. The quantitative blood collection tube according to claim 1, wherein: the left lower extreme intercommunication of ration heparin tube body (1) is provided with the gas pocket inside and outside, and the diameter of gas pocket is less than the width of rubber buffer (10).

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