Remaining needle integrating blood sampling and transfusion

Abstract

The utility model discloses a blood sampling and transfusion integrated indwelling needle which comprises an indwelling needle body, a transfusion tee joint is fixedly arranged on the indwelling needle body through a rubber plug, a blood sampling needle of an integrated structure is fixedly arranged on the transfusion tee joint, and the indwelling needle body and the transfusion tee joint form a Y-shaped shunt structure. The blood taking needle is arranged on an extension line where the remaining needle body is connected with the remaining needle body to form a collecting and conveying integrated structure. The indwelling needle structure integrating infusion and blood sampling is formed in an integrated mode, the infusion tee joint is directly connected with the rubber plug, the length of a pipeline is greatly shortened, the hemolysis rate of a blood sample is reduced, the blood sampling needle is directly connected with the indwelling needle through the infusion tee joint to form an integrated structure, the number of puncture times is reduced, and the heparin cap picking and replacing actions are reduced; thrombus caused by difficult effective removal of residual blood in the flushing and sealing tube is reduced, the operation risk is reduced, and the accuracy of blood sample detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needles, in particular to an indwelling needle integrated with blood collection and infusion. Background Art

[0002] In clinical work, in order to avoid increasing the number of venipunctures for patients and reduce the occurrence of related complications, an indwelling needle is often used to provide intravenous infusion for patients, and the heparin cap is removed to connect the blood collection needle to collect blood samples from patients.

[0003] However, in actual operation, the use of an indwelling needle and a blood collection needle to collect blood samples will increase the hemolysis rate of the blood sample due to the increase in the volume of the tubular cavity. Since the tubular cavity is slender, the length of the tube that red blood cells need to pass through is extended, and the number of conversions between different needles is increased, which is more likely to cause hemolysis of the sample, resulting in inaccurate blood sample test results. At the same time, it is easy to cause insufficient sample collection. In addition, since it is a non-standard operation, the risk of needle stick injury is greatly increased.

[0004] However, after blood collection using a standard indwelling needle, blood adheres to the heparin cap and the wall of the indwelling needle lumen. Conventional indwelling needle flushing tubes cannot effectively remove residual blood, resulting in the formation of thrombus. Once thrombus falls off and enters the vein, it can cause complications such as pulmonary embolism, increasing the risk of related intravenous treatment. Utility Model Content

[0005] The purpose of the utility model is to provide an indwelling needle that integrates blood collection and infusion, so as to solve the technical problems in the prior art that the blood sample collection method of the indwelling needle plus the blood collection needle easily causes sample hemolysis leading to thrombosis and inaccurate blood samples.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A retention needle that integrates blood collection and infusion, including a retention needle body, an infusion tee fixedly provided on the retention needle body via a rubber stopper, and a blood collection needle in an integrated structure fixedly provided on the infusion tee, the retention needle body and the infusion tee forming a Y-shaped branch structure, and the blood collection needle being arranged on the extension line connecting the retention needle body and the retention needle body to form an integrated blood collection and infusion structure.

[0008] As a preferred solution of the present invention, one end of the infusion tee is threadedly connected to a connector, one end of the connector is fixedly provided with a heparin cap, and one end of the heparin cap is fixedly connected to the blood collection needle to form an integrated structure.

[0009] As a preferred solution of the present invention, a reinforcing ball is fixedly provided at the contact position between the outer wall of the blood collection needle and the infusion tee, the blood collection needle is fixedly plugged into the heparin cap through the needle, connecting rods vertically connected to the outer wall of the heparin cap are provided at equal intervals on the inner wall of the reinforcing ball, and support rods fixedly connected to one end of the heparin cap are provided at equal intervals on the inner wall of the reinforcing ball with the needle as the center.

[0010] As a preferred solution of the present invention, a reinforcement sleeve is fixedly provided at the contact position between the infusion tee and the rubber plug, and two groups of fixing rods are fixedly provided inside the reinforcement sleeve. One end of the two groups of fixing rods is triangular in shape and is respectively fixedly connected to the rubber plug and the infusion tee to form a supporting structure.

[0011] As a preferred solution of the present invention, a tube plug puncture needle is fixedly provided at the tail end of the blood collection needle, and a protective sleeve is threadedly connected to the tail end of the blood collection needle and is sleeved on the outside of the tube plug puncture needle. A sealing ring is provided at the opening of the protective sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model adopts an integrated manner to form an indwelling needle structure integrating infusion and blood collection, and is directly connected to the rubber stopper through the infusion tee, which greatly shortens the pipeline length and reduces the hemolysis rate of the blood sample. The blood collection needle is directly connected to the indwelling needle through the infusion tee to form an integrated structure, which is beneficial to reducing the number of punctures, reducing the need to remove and replace the heparin cap, and reducing the situation where the flushing and sealing tube is difficult to effectively remove residual blood and cause thrombosis, which is beneficial to reducing operational risks and improving the accuracy of blood sample detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0015] Figure 1 Provides a schematic diagram of the overall front view structure of an embodiment of the utility model;

[0016] Figure 2 Provides a schematic diagram of the overall connection structure of the embodiment of the utility model;

[0017] Figure 3 A schematic top-sectional structure diagram of a reinforcement ball is provided for an embodiment of the utility model.

[0018] The numbers in the figure represent the following:

[0019] 10-indwelling needle body; 20-infusion three-way valve; 30-blood collection needle;

[0020] 11- rubber plug;

[0021] 21-connector; 22-heparin cap; 23-reinforcement sleeve; 24-fixing rod;

[0022] 31-reinforcement ball; 32-connecting rod; 33-support rod; 301-needle; 302-tube plug puncture needle; 303-protective sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, the utility model provides an indwelling needle that integrates blood collection and infusion, including an indwelling needle body 10, an infusion tee 20 is fixedly provided on the indwelling needle body 10 through a rubber plug 11, and a blood collection needle 30 with an integrated structure is fixedly provided on the infusion tee 20. The indwelling needle body 10 and the infusion tee 20 form a Y-shaped branch structure, and the blood collection needle 30 is arranged on the extension line connecting the indwelling needle body 10 and the indwelling needle body 10 to form an integrated blood collection and infusion structure.

[0025] The utility model adopts an integrated manner to form an indwelling needle structure integrating infusion and blood collection, and is directly connected to the rubber stopper through the infusion tee, which greatly shortens the pipeline length and reduces the hemolysis rate of the blood sample. The blood collection needle is directly connected to the indwelling needle through the infusion tee to form an integrated structure, which is beneficial to reducing the number of punctures, reducing the need to remove and replace the heparin cap, and reducing the situation where the flushing and sealing tube is difficult to effectively remove residual blood and cause thrombosis, which is beneficial to reducing operational risks and improving the accuracy of blood sample detection.

[0026] By integrating the blood collection needle 30 with the indwelling needle body 10, it is convenient to reduce the puncture and connection steps during blood collection, facilitate the completion of blood collection through the indwelling needle body 10, further shorten the blood collection tube length, and facilitate reducing the length of the tube that red blood cells need to pass through, reduce the number of conversions between different needles, and reduce the situation of specimen hemolysis.

[0027] like Figure 2 As shown, one end of the infusion tee 20 is threadedly connected to a connector 21 , one end of the connector 21 is fixedly provided with a heparin cap 22 , and one end of the heparin cap 22 is fixedly connected to the blood collection needle 30 to form an integrated structure.

[0028] The heparin cap 22 and the blood collection needle 30 are integrated into one design to reduce the risk of infection. The heparin cap 22 and the blood collection needle 30 are integrated into one and can be detached through the connector 21 to reduce the risk of needle stick injury.

[0029] like Figure 2 and Figure 3 As shown, a reinforcing ball 31 is fixedly provided at the contact position between the outer wall of the blood collection needle 30 and the infusion tee 20, and the blood collection needle 30 is fixedly plugged into the heparin cap 22 through the needle 301. Connecting rods 32 vertically connected to the outer wall of the heparin cap 22 are arranged at equal intervals on the inner wall of the reinforcing ball 31, and supporting rods 33 fixedly connected to one end of the heparin cap 22 are arranged at equal intervals on the inner wall of the reinforcing ball 31 with the needle 301 as the center.

[0030] This is convenient for enhancing the stability of the connection between the blood collection needle 30 and the heparin cap 22, reducing the possibility of the end of the blood collection needle 30 being scratched during use, causing the needle 301 connection to be easily bent or further causing pressure on the needle insertion position, and is conducive to sealing and protecting the needle 301 connection, thereby enhancing the safety of the blood collection needle 30 when it is in place.

[0031] like Figure 1 and Figure 2 As shown, a reinforcement sleeve 23 is fixedly provided at the contact position between the infusion tee 20 and the rubber plug 11, and two groups of fixing rods 24 are fixedly provided inside the reinforcement sleeve 23. One end of the two groups of fixing rods 24 is triangular and fixedly connected to the rubber plug 11 and the infusion tee 20 to form a supporting structure.

[0032] The reinforcing sleeve 23 is used to strengthen the stability of the connection between the infusion tee 20 and the rubber plug 11, reducing the situation where the connection is prone to shaking and instability due to the longer connection at the tail end of the infusion tee 20, thereby increasing the pressure at the needle insertion position of the indwelling needle body 10, which is beneficial to enhancing the integrated stability of the blood collection needle 30 and the indwelling needle body 10.

[0033] like Figure 2 As shown, a tube plug puncture needle 302 is fixedly provided at the tail end of the blood collection needle 30, and a protective sleeve 303 is threadedly connected to the tail end of the blood collection needle 30 and is sleeved on the outside of the tube plug puncture needle 302. A sealing ring is provided at the opening of the protective sleeve 303.

[0034] It is convenient for protecting the interface of the tube plug puncture needle 302, facilitating the retention and use of the blood collection needle 30, reducing the infection risk of the tube plug puncture needle 302, and facilitating closed protection.

[0035] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the scope of the present application. The scope of protection of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A blood collection and infusion integrated indwelling needle, characterized in that: The invention comprises an indwelling needle body (10), an infusion tee (20) is fixedly provided on the indwelling needle body (10) via a rubber plug (11), and a blood collection needle (30) in an integrated structure is fixedly provided on the infusion tee (20), the indwelling needle body (10) and the infusion tee (20) form a Y-shaped branch structure, and the blood collection needle (30) is provided on the extension line connecting the indwelling needle body (10) and the indwelling needle body (10) to form an integrated blood collection and delivery structure.

2. The indwelling needle integrating blood collection and infusion according to claim 1, characterized in that: One end of the infusion tee (20) is threadedly connected to a connector (21), one end of the connector (21) is fixedly provided with a heparin cap (22), and one end of the heparin cap (22) is fixedly connected to the blood collection needle (30) to form an integrated structure.

3. The indwelling needle integrating blood collection and infusion according to claim 2, characterized in that: A reinforcing ball (31) is fixedly provided at the contact position between the outer wall of the blood collection needle (30) and the infusion tee (20); the blood collection needle (30) is fixedly plugged into the heparin cap (22) through the needle head (301); connecting rods (32) vertically connected to the outer wall of the heparin cap (22) are provided at equal intervals on the inner wall of the reinforcing ball (31); and supporting rods (33) fixedly connected to one end of the heparin cap (22) are provided at equal intervals on the inner wall of the reinforcing ball (31) with the needle head (301) as the center.

4. The indwelling needle integrating blood collection and infusion according to claim 1, characterized in that: A reinforcement sleeve (23) is fixedly provided at the contact position between the infusion tee (20) and the rubber plug (11), and two groups of fixing rods (24) are fixedly provided inside the reinforcement sleeve (23). One end of the two groups of fixing rods (24) are triangular in shape and are respectively fixedly connected to the rubber plug (11) and the infusion tee (20) to form a support structure.

5. The indwelling needle integrating blood collection and infusion according to claim 1, characterized in that: The tail end of the blood collection needle (30) is fixedly provided with a tube plug puncture needle (302), and the tail end of the blood collection needle (30) is threadedly connected to a protective sleeve (303) sleeved on the outside of the tube plug puncture needle (302), and a sealing ring is provided at the opening of the protective sleeve (303).

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