Disposable indwelling needle blood sampler

Abstract

The utility model discloses a disposable indwelling needle blood sampling device, including the hose, the one end of hose is installed with the blood sampling tube connecting end, the other end of hose is installed with the indwelling needle connecting end, and the indwelling needle connecting end includes the connecting shell, the inside integral mould of connecting shell has the guide pipe, the outside middle part of connecting shell integral mould has the second connecting pipe of with guide pipe intercommunication, and the inner wall of connecting shell is equipped with internal thread, the utility model discloses replace needle head with indwelling needle connecting end, make the screw connection of connecting shell and indwelling needle tail end, and the second connecting pipe is inserted in the second connecting head, and the guide pipe is inserted with indwelling needle tail end simultaneously, thereby make the hose can be connected with indwelling needle firmly, reduce the puncture injury and the secondary damage to blood cell when the hose is communicated with indwelling needle, greatly reduce the hemolysis rate, can directly draw blood after the connection of both, improve work efficiency, increase patient satisfaction.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a disposable indwelling needle blood collection device. Background Technology

[0002] Venous blood collection is the most common blood collection method used in hospitals for routine examinations. Venous blood collection involves drawing a certain amount of venous blood using a lancet as a blood sample for medical testing. Disposable lancets are used for venous blood collection. These lancets consist of a venous needle, a front needle hub connected to a back needle hub and a lancet via a flexible tube. The venous needle is inserted into the vein, and the lancet is inserted into a negative pressure blood collection tube. Under the pressure of the negative pressure tube, the blood sample enters the tube. Intravenous injection is a medical procedure. For patients requiring multiple medications, indwelling needles are typically used for injections or infusions to reduce patient discomfort and avoid repeated punctures.

[0003] However, the current blood collection needles inserted into indwelling needles have the following problems: 1. Blood collection needles are easy to cause punctures; 2. The needle tip can cause secondary damage to red blood cells in the blood, which can easily lead to hemolysis; 3. The blood collection needle is directly connected to the indwelling needle, and the impact force of the blood rushing in is relatively large, which can easily cause hemolysis. Therefore, a disposable indwelling needle blood collection device is designed to change the above technical defects. Utility Model Content

[0004] (1) Technical problems to be solved In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a disposable indwelling needle blood collection device to solve the above-mentioned technical problems.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a disposable indwelling needle blood collection device, including a tubing, one end of which is equipped with a blood collection tube connection end, and the other end of which is equipped with an indwelling needle connection end. The indwelling needle connection end includes a connecting shell, an integrally formed guide tube inside the connecting shell, and an integrally formed second connecting tube communicating with the guide tube in the middle of the outer side of the connecting shell. The inner wall of the connecting shell is provided with internal threads.

[0006] Preferably, the other end of the hose is integrally formed with a second connector.

[0007] Furthermore, the end of the second connecting tube furthest from the connecting shell is inserted into the interior of the second connecting head.

[0008] Furthermore, a cap made of rubber is fitted onto the outside of the guide tube.

[0009] Furthermore, one end of the tubing is integrally formed with a first connector, through which the tubing is connected to the blood collection tube connection end.

[0010] Furthermore, the blood collection tube connection end includes a needle hub, with a first connecting tube integrally formed in the middle of one end of the needle hub, and a protective shell integrally formed in the other end of the needle hub. A blood collection needle is inserted into the middle of the inner wall of the protective shell through a papillary portion.

[0011] Furthermore, the end of the first connecting tube furthest from the needle hub is inserted into the interior of the first connector, and the first connecting tube, needle hub, protective shell, mastoid portion, and blood collection needle are all interconnected.

[0012] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: This invention replaces the needle tip with an indwelling needle connector, screws the connector shell to the tail end of the indwelling needle, inserts the second connector into the second connector, and simultaneously inserts the guide tube into the tail end of the indwelling needle. This allows the tubing to be securely connected to the indwelling needle, reducing needle prick injuries and secondary damage to blood cells when the tubing and indwelling needle are connected, greatly reducing the hemolysis rate. After the two are connected, blood can be drawn directly, improving work efficiency and increasing patient satisfaction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the structure from another perspective in this utility model; Figure 3 This is a schematic diagram of the exploded structure in this utility model; Figure 4 This is a cross-sectional view of the present invention. Figure 5 In this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0014] The labels in the attached diagram are as follows: 1. Tube; 2. First connector; 3. Blood collection tube connector; 301. Needle hub; 302. First connecting tube; 303. Protective shell; 304. Blood collection needle; 4. Second connector; 5. Indwelling needle connector; 501. Connecting shell; 502. Second connecting tube; 503. Guide tube; 504. Cap. Detailed Implementation

[0015] This specific embodiment is a disposable indwelling needle blood collection device, and its structural schematic diagram is shown below. Figures 1-5As shown, it includes a tubing 1, one end of which is fitted with a blood collection tube connection end 3, and the other end of which is fitted with an indwelling needle connection end 5. The indwelling needle connection end 5 includes a connecting shell 501, inside which a guide tube 503 is integrally formed, and on the outer middle part of the connecting shell 501, a second connecting tube 502 connected to the guide tube 503 is integrally formed, and the inner wall of the connecting shell 501 is provided with an internal thread 505; wherein the indwelling needle connection end 5 and the blood collection tube connection end 3 are made of a rigid transparent material.

[0016] Specifically, during use, the blood collection tube connection end 3 and the indwelling needle connection end 5 are respectively installed at the corresponding positions at both ends of the tubing 1. The indwelling needle connection end 5 is connected to the tail tube of the indwelling needle, and then the blood collection tube connection end 3 is connected to the inside of the vacuum blood collection tube. Under negative pressure, blood enters the vacuum blood collection tube through the indwelling needle connection end 5, the tubing 1, and the blood collection tube connection end 3 for collection. After collection is completed, the indwelling needle connection end 5 and the blood collection tube connection end 3 are pulled out in sequence to complete the blood collection.

[0017] In addition, the other end of the tubing 1 is integrally formed with a second connector 4; the second connector 4 facilitates a secure connection with the indwelling needle connection end 5.

[0018] In addition, the end of the second connecting tube 502 away from the connecting shell 501 is inserted into the interior of the second connector 4; wherein the second connecting tube 502 is a rigid transparent tube that can be easily inserted into the second connector 4, so that the guide tube 503 is connected to the hose 1 through the second connecting tube 502.

[0019] In addition, a cap 504 made of rubber is fitted on the outside of the guide tube 503; the guide tube 503 can be inserted into the tail end of the indwelling needle and screwed to the tail end of the indwelling needle through the connecting shell 501 to ensure a stable connection between the guide tube and the indwelling needle; this can reduce needle puncture damage to the indwelling needle and secondary damage to blood cells when the needle is inserted, greatly reduce the hemolysis rate and improve work efficiency.

[0020] In addition, one end of the tubing 1 is integrally formed with a first connector 2, and the tubing 1 is connected to the blood collection tube connection end 3 through the first connector 2; the first connector 2 is also made of a hard and transparent material, which facilitates connection with the blood collection tube connection end 3.

[0021] In addition, the blood collection tube connection end 3 includes a needle hub 301. A first connecting tube 302 is integrally formed in the middle of one end of the needle hub 301, and a protective shell 303 is integrally formed in the other end of the needle hub 301. A blood collection needle 304 is inserted into the middle of the inner wall of the protective shell 303 through a papillary portion. A protective plug is plugged into the open end of the protective shell 303 to provide protection when the blood collection tube connection end 3 is not in use.

[0022] In addition, the end of the first connecting tube 302 away from the needle seat 301 is inserted into the interior of the first connector 2. The first connecting tube 302, the needle seat 301, the protective shell 303, the papillary part and the blood collection needle 304 are all interconnected. During blood collection, the tubing 1, the first connector 2 and the needle seat 301 are connected to the vacuum blood collection tube, so that the blood sample enters the vacuum blood collection tube.

[0023] All technical features in this embodiment can be freely combined according to actual needs.

[0024] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A disposable needle phlebotomy set, characterized by The device includes a tubing (1), one end of which is fitted with a blood collection tube connector (3), and the other end of which is fitted with an indwelling needle connector (5). The indwelling needle connector (5) includes a connecting shell (501), the inside of which is integrally formed with a guide tube (503), and the middle of the outer side of the connecting shell (501) is integrally formed with a second connecting tube (502) that communicates with the guide tube (503). The inner wall of the connecting shell (501) is provided with an internal thread (505).

2. The blood sampling device according to claim 1, wherein: The other end of the hose (1) is integrally formed with a second connector (4).

3. The blood sampling device according to claim 2, wherein: The end of the second connecting tube (502) away from the connecting shell (501) is inserted into the interior of the second connector (4).

4. The blood sampling device according to claim 3, wherein: The guide tube (503) is fitted with a cap (504) on its outer side, and the cap (504) is made of rubber.

5. The blood sampling device according to claim 4, wherein: One end of the hose (1) is integrally formed with a first connector (2), and the hose (1) is connected to the blood collection tube connector (3) through the first connector (2).

6. The blood sampling device according to claim 5, wherein: The blood collection tube connection end (3) includes a needle seat (301), a first connecting tube (302) is integrally formed in the middle of one end of the needle seat (301), and a protective shell (303) is integrally formed in the other end of the needle seat (301). A blood collection needle (304) is inserted into the middle of the inner wall of the protective shell (303) through the papilla.

7. The blood sampling device according to claim 6, wherein: The end of the first connecting tube (302) away from the needle seat (301) is inserted into the interior of the first connector (2). The first connecting tube (302), needle seat (301), protective shell (303), mastoid part and blood collection needle (304) are all interconnected.

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