Internal arteriovenous fistula puncture needle with side tube

Abstract

The utility model discloses an internal arteriovenous fistula puncture needle with a side tube. The internal arteriovenous fistula puncture needle comprises a tube body, a puncture needle head is installed at the left end of the tube body, a needle wing is arranged on the outer arc face of the plastic end of the puncture needle head, a connector is installed at the right end of the tube body, the outer arc face of the tube body is movably sleeved with a large wire clamp, a side tube is arranged on the outer arc face of the tube body and communicated with the tube body, a connector is arranged at an opening of the end of the side tube, and the outer arc face of the connector is movably sleeved with a small wire clamp. According to the internal arteriovenous fistula puncture needle with the side tube, a blood sample needed for internal fistula blood recirculation detection is collected through the side tube, a blood taking needle is not needed, the situation that the blood taking needle punctures a pipeline is avoided, the blood taking needle is not needed, the blood taking needle is not needed, and the blood taking needle is convenient to use. The use safety of the internal arteriovenous fistula puncture needle is improved, the overall material consumption is less, and the cost of the internal arteriovenous fistula puncture needle is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of arteriovenous fistula puncture, in particular to an arteriovenous fistula puncture needle with a side tube. Background Art

[0002] Arteriovenous fistula puncture is mainly performed through a minor surgery of vascular anastomosis, which can suture the artery and adjacent vein near the wrist of the forearm as a whole, so that arterial blood flows in the anastomosed vein, thus forming an arteriovenous fistula. Clinically, arteriovenous fistula puncture needle is mainly used for hemodialysis treatment, which is mainly composed of puncture needle tube, needle wing, tube body, catheter clamp, connector, etc. During hemodialysis treatment, the patient's arteriovenous fistula is punctured and then connected to the dialysis tube and dialyzer for dialysis treatment. Due to the poor dialysis adequacy of the patient, it is clinically necessary to evaluate whether there is blood recirculation in the fistula, so a glucose recirculation test is performed. This test requires a three-way connector to be connected to the puncture needle tube joint and then connected to the dialysis tube. It is used to draw blood from the arterial end and inject glucose injection from the venous end half an hour after treatment. Generally, hemodialysis patients need to collect blood samples before or after dialysis, usually by puncturing the dialysis tube stopper with a blood collection needle, which is not only unsafe but also easy to puncture the tube. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an arteriovenous fistula puncture needle with a side tube. The blood sample required for the fistula blood recirculation detection is collected through the side tube, without the need for a blood collection needle, thus avoiding the blood collection needle puncturing the pipeline, improving the safety of the use of the arteriovenous fistula puncture needle, and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an arteriovenous fistula puncture needle with a side tube, comprising a tube body;

[0005] Tube body: A puncture needle is installed on its left end, and a needle wing is provided on the outer arc surface of the plastic end of the puncture needle. A joint is installed on the right end of the tube body. A large wire clamp is provided on the movable sleeve on the outer arc surface of the tube body. A side tube is provided on the outer arc surface of the tube body. The side tube is connected to the tube body. A connector is provided at the end opening of the side tube. A small wire clamp is provided on the movable sleeve on the outer arc surface of the connector. Blood samples required for fistula blood recirculation detection are collected through the side tube. There is no need to use a blood collection needle, which avoids puncturing the pipeline with the blood collection needle, improves the safety of using the arteriovenous fistula puncture needle, reduces overall consumables, and reduces the cost of the arteriovenous fistula puncture needle.

[0006] Furthermore, the outer arc surface movable sleeve of the tube body is provided with a rubber sleeve, and the rubber sleeve is installed in cooperation with the side tube, so as to facilitate fixing the position of the side tube on the surface of the tube body.

[0007] Furthermore, the surface of the needle wing is provided with an anti-slip groove to facilitate holding the needle wing.

[0008] Furthermore, a fixed pressing plate is provided at the right end of the outer arc surface of the tube body to fix the position of the right end of the tube body.

[0009] Furthermore, the tube body and the side tubes are both transparent plastic tubes, which facilitates observation of the flow of liquid inside the tube body and the side tubes.

[0010] Furthermore, the puncture needle is a stainless steel puncture needle, which has higher strength.

[0011] Furthermore, the large wire clamp and the small wire clamp are both Robert hose wire clamps, which can be easily used with one hand.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the arteriovenous fistula puncture needle with side tube has the following advantages:

[0013] During the arteriovenous fistula puncture process, the puncture needle is inserted into the patient's body, and the artery and adjacent vein of the patient's forearm near the wrist are sutured using the tube body to allow arterial blood to flow in the vein to form an arteriovenous fistula. When evaluating whether there is blood recirculation in the fistula, it is only necessary to connect the collection container to the side tube through the connector, open the small wire clamp, and allow the blood inside the tube body to enter the collection container from the side tube. The blood sample required for the fistula blood recirculation test is collected through the side tube. There is no need to use a blood collection needle, which avoids puncturing the pipeline with the blood collection needle, thereby improving the safety of the use of the arteriovenous fistula puncture needle, reducing the overall consumables, and reducing the cost of the arteriovenous fistula puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] In the figure: 1 tube body, 2 puncture needle, 3 needle wing, 4 joint, 5 large wire clamp, 6 side tube, 7 connector, 8 small wire clamp, 9 rubber sleeve, 10 anti-slip groove, 11 fixed pressure plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 , This embodiment provides a technical solution: an arteriovenous fistula puncture needle with a side tube, comprising a tube body 1;

[0018] Tube body 1: A puncture needle 2 is installed on its left end, and a needle wing 3 is provided on the outer arc surface of the plastic end of the puncture needle 2, which is convenient for fixing the position of the puncture needle 2 and determining the puncture angle of the puncture needle 2. A joint 4 is installed on the right end of the tube body 1 to facilitate the connection of the tube body 1 with an external pipeline. A large wire clamp 5 is provided on the outer arc surface of the tube body 1 to control the flow of liquid inside the tube body 1. A side tube 6 is provided on the outer arc surface of the tube body 1, and the side tube 6 is connected to the tube body 1. A connector 7 is provided at the end opening of the side tube 6. A small wire clamp 8 is provided on the outer arc surface of the connector 7. When evaluating whether there is blood recirculation in the fistula, it is only necessary to connect the collection container with the side tube 6 through the connector 7, open the small wire clamp 8, and allow the blood inside the tube body 1 to enter the collection container from the side tube 6. There is no need to use a blood collection needle, which can avoid the blood collection needle puncturing the pipeline and improve safety. The outer arc surface movable sleeve of the tube body 1 is provided with a rubber sleeve 9, and the rubber sleeve 9 is installed in cooperation with the side tube 6. The rubber sleeve 9 is deformed to press the side tube 6 on the surface of the tube body 1, which is convenient for limiting the position of the side tube 6. The surface of the needle wing 3 is provided with an anti-slip groove 10 to increase the friction force on the surface of the needle wing 3, which is convenient for medical staff to hold and makes the fixation of the needle wing 3 more secure. The right end of the outer arc surface of the tube body 1 is provided with a fixed pressing plate 11, which is convenient for fixing the right end of the tube body 1 and determining the angle after the tube body 1 is fixed. The tube body 1 and the side tube 6 are both transparent plastic tubes, which is convenient for observing the flow state of the liquid inside the tube body 1 and the side tube 6. The puncture needle 2 is a stainless steel puncture needle, which makes the puncture needle 2 have higher strength. The large wire clamp 5 and the small wire clamp 8 are both Robert hose wire clamps, which makes the operation of the wire clamp simpler and can be easily completed with one hand.

[0019] The working principle of the arteriovenous fistula puncture needle with a side tube provided by the utility model is as follows: during the arteriovenous fistula puncture, the puncture needle 2 is inserted into the patient's body, and the artery and the adjacent vein of the patient's forearm near the wrist are sutured using the tube body 1, so that arterial blood flows in the vein to form an arteriovenous fistula. When evaluating whether there is blood recirculation in the fistula, it is only necessary to connect the collection container with the side tube 6 through the connector 7, open the small wire clamp 8, and allow the blood inside the tube body 1 to enter the collection container from the side tube 6. There is no need to use a blood collection needle, which avoids the blood collection needle puncturing the pipeline and improves safety.

[0020] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An arteriovenous fistula puncture needle with a side tube, characterized in that: Includes tube body(1); The tube body (1) is provided with a puncture needle (2) at its left end, and a needle wing (3) is provided on the outer arc surface of the plastic end of the puncture needle (2). A joint (4) is provided at the right end of the tube body (1). A large wire clamp (5) is provided on the outer arc surface movable sleeve of the tube body (1). A side tube (6) is provided on the outer arc surface of the tube body (1), and the side tube (6) is connected to the tube body (1). A connector (7) is provided at the end opening of the side tube (6), and a small wire clamp (8) is provided on the outer arc surface movable sleeve of the connector (7).

2. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: The outer arc surface movable sleeve of the tube body (1) is provided with a rubber sleeve (9), and the rubber sleeve (9) is installed in coordination with the side tube (6).

3. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: The surface of the needle wing (3) is provided with an anti-slip groove (10).

4. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: A fixed pressing plate (11) is provided at the right end of the outer arc surface of the tube body (1).

5. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: The tube body (1) and the side tube (6) are both transparent plastic tubes.

6. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: The puncture needle (2) is a stainless steel puncture needle.

7. The arteriovenous fistula puncture needle with side tube according to claim 1, characterized in that: The large wire clamp (5) and the small wire clamp (8) are both Robert hose wire clamps.

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