Disposable needle tube type collection and storage integrated blood container

Abstract

A disposable needle tube type collecting and storing integrated blood container is composed of a needle tube, a piston and a rod handle, a needle head connecting portion is arranged at the front end of the needle tube, the outer wall of the piston and the inner wall of the needle tube are sealed in a sliding friction mode, the piston and the rod handle are of a split structure, the cross section of the piston is in a lateral U shape, and a pair of L-shaped notches are formed in the groove wall of a U-shaped groove of the piston. And a convex column matched with the L-shaped notch is arranged at the front end part of the rod handle. Compared with the prior art, the dual-purpose syringe has the advantages that the dual purposes of sampling and storage are achieved, the operation is convenient, and in addition, due to the fact that the dual-purpose syringe is of an open structure, blood can be prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to a disposable blood container for testing, in particular to a disposable syringe-type blood container integrated with blood collection and storage. Background Art

[0002] At present, the disposable blood container for testing on the market is a deep U-shaped bucket, which is just a simple blood storage container. A disposable needle tube is required for blood collection. In this way, two sets of devices are required for blood collection and blood storage. The operation is relatively troublesome and not economical. In addition, this blood storage container is an open structure and is easily polluted by the environment. Therefore, designing a disposable syringe-type blood collection and storage integrated container is a technical problem that needs to be solved at present. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a disposable syringe-type integrated blood collection and storage container.

[0004] The technical solution of the utility model to solve the technical problem is:

[0005] The disposable needle tube type blood collection and storage integrated container is composed of a needle tube, a piston and a rod handle. The front end of the needle tube is provided with a needle connection part. The outer wall of the piston and the inner wall of the needle tube are slidably friction-sealed. The piston and the rod handle are split structures. The cross-sectional view of the piston is a side U-shaped. There is a pair of L-shaped notches on the groove wall of the U-shaped groove of the piston. The front end of the rod handle is provided with a convex column matching the above L-shaped notches. The initial position of the piston is at the front end of the needle tube. The needle is installed on the needle connection part of the needle tube. After the front end of the rod handle is inserted into the piston (so that the convex column of the rod handle is aligned with the L-shaped notch of the piston), it is rotated at a certain angle, and the needle is inserted into the blood vessel of the patient to be tested. The rod handle is pulled back to drive the piston to move backward. Due to the sealing effect of the piston and the inner wall of the needle tube, blood is drawn into the needle tube. After the blood is drawn, the rod handle can be rotated in the opposite direction at a certain angle to withdraw the rod handle. The rod handle of the utility model can be distributed in a box of products by only one or several, and used as a tool to achieve the purpose of saving.

[0006] As a preferred solution of the utility model, an anti-pollution protective cap is mounted on the needle connecting portion of the needle tube.

[0007] As a preferred solution of the utility model, the handle is composed of a front end, a rear end and a middle connection. The front end is a cylinder, the protrusion is arranged on the cylinder, the rear end is a pancake shape for easy pulling and preventing slipping, and the middle connection is a small cylinder at the center and a number of reinforcing ribs evenly distributed around the small cylinder. The number of reinforcing ribs is 3 or 4.

[0008] Compared with the prior art, the utility model realizes the dual purpose of blood collection and storage, is easy to operate, and has an open structure to prevent blood from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model (embodiment 1);

[0010] Figure 2 It is a structural schematic diagram of the utility model (Example 2);

[0011] Figure 3 yes Figure 1 AA section view;

[0012] Figure 4 yes Figure 2 AA section view;

[0013] Figure 5 yes Figure 1 , Figure 2 Structural diagram of middle piece 3 (axonometric drawing);

[0014] Figure 6 yes Figure 1 Structural diagram of middle piece 2 (axonometric drawing);

[0015] Figure 7 yes Figure 2 Structural diagram of middle piece 2 (axonometric drawing). DETAILED DESCRIPTION

[0016] As shown in the figure, a disposable needle tube type blood collection and storage integrated container is composed of a needle tube 1, a piston 3 and a handle 2. The front end of the needle tube 1 is provided with a needle connection portion 1-1, the outer wall of the piston 3 is slidably and frictionally sealed with the inner wall of the needle tube 1, the piston 3 and the handle 2 are split structures, the cross-sectional view of the piston 3 is a side U-shape, a pair of L-shaped notches 3-1 are provided on the groove wall of the U-shaped groove of the piston 3, and the front end of the handle 2 is provided with a convex column 2-1 matching the above-mentioned L-shaped notch 3-1.

[0017] An anti-pollution protection cap 4 is mounted on the needle connecting portion 1 - 1 of the needle tube 1 .

[0018] The handle 2 is composed of a front end, a rear end and a middle connection. The front end is a cylinder, on which the protrusion 2-1 is arranged. The rear end is a pancake shape for easy pulling and preventing the handle from slipping out of the hand. The middle connection is a small cylinder at the center and a number of reinforcing ribs evenly distributed around the small cylinder. The number of reinforcing ribs is 3 or 4.

Claims

1. A disposable needle tube type integrated blood collection and storage container, comprising a needle tube (1), a piston (3) and a handle (2), wherein the front end of the needle tube (1) is provided with a needle connection portion (1-1), and the outer wall of the piston (3) is slidably frictionally sealed with the inner wall of the needle tube (1), characterized in that: The piston (3) and the rod handle (2) are separate structures. The cross-section of the piston (3) is a side U-shape. A pair of L-shaped notches (3-1) are provided on the groove wall of the U-shaped groove of the piston (3). The front end of the rod handle (2) is provided with a convex column (2-1) matching the L-shaped notches (3-1).

2. The disposable needle-tube blood collection and storage integrated container according to claim 1, characterized in that: An anti-pollution protective cap (4) is mounted on the needle connecting portion (1-1) of the needle tube (1).

3. The disposable needle-tube blood collection and storage integrated container according to claim 1, characterized in that: The handle (2) is composed of three parts: a front end, a rear end and a middle connecting part. The front end is a cylinder on which the protruding column (2-1) is arranged. The rear end is a pancake-shaped part that is easy to pull out and prevent from slipping out of the hand. The middle connecting part is a small cylinder at the center and a plurality of reinforcing ribs evenly distributed around the small cylinder.

4. The disposable needle-tube type blood collection and storage integrated container according to claim 3, characterized in that: The number of reinforcing ribs is 3 or 4.

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