Multifunctional integrated internal fistula puncture needle

Abstract

The utility model provides a multifunctional integrated internal fistula puncture needle, which relates to the technical field of medical instruments, and comprises a main body, one end of the main body is provided with a needle head, the main body is provided with a blood sampling part convenient for blood sampling by adopting an injector, and the blood sampling part comprises an injection port, a shielding part and a holding part, the holding part is fixedly connected to the lower surface of the shielding part; according to the multifunctional integrated internal fistula puncture needle, a medical worker can directly conduct blood sampling or anticoagulant injection conveniently, meanwhile, the blood sampling part is stably pinched and held, fingers are protected, and the medical worker is prevented from being accidentally injured when blood sampling is conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a multifunctional integrated internal fistula puncture needle. Background Art

[0002] Arteriovenous fistula is a commonly used and most ideal vascular access for patients undergoing maintenance hemodialysis. It is of great significance to ensure the effect of hemodialysis and maintain the long-term survival of patients. When patients who use fistula as a vascular access undergo hemodialysis, they need to puncture the arteriovenous fistula blood vessels with a disposable fistula puncture needle to establish extracorporeal circulation. The disposable arteriovenous fistula puncture needle needle is made of stainless steel, plus a needle handle and a plastic extension tube. After a successful puncture, it is necessary to unscrew the cap of the venous puncture needle to draw blood or inject anticoagulants, or it is necessary to connect the extracorporeal circulation line to draw blood before drawing blood or injecting anticoagulants, which brings inconvenience to clinical operations and increases the risk of infection.

[0003] The requirements of the standard operating procedure (SOP) for blood purification are as follows: 1. Blood drawing before dialysis is to draw blood directly from the venous fistula puncture site after arteriovenous fistula puncture and before dialysis starts, so as to reduce the error of blood drawing results; 2. Anticoagulant injection: after arteriovenous fistula puncture according to the hemodialysis machine operation process, the first dose of anticoagulant is injected from the venous fistula puncture site according to the doctor's order to achieve the best anticoagulation effect of systemic heparinization and try to avoid puncture needle coagulation or microthrombosis.

[0004] The extension tube of the existing fistula puncture needle is a single pipeline, and there is no injection port for blood collection or anticoagulant injection. After blood is drawn, the extracorporeal circulation line is connected and the anticoagulant is injected, which makes it difficult to quickly enter the patient's body and does not meet the requirement of systemic heparinization proposed by the SOP. In addition, the injection port is far away from the needle, resulting in errors in collecting blood samples after blood is drawn. And the injection port lacks a protective structure. If you are not careful, the syringe can easily pierce the wrong side and pierce the fingers of the medical staff, causing unexpected injuries.

[0005] Therefore, it is necessary to propose a multifunctional integrated fistula puncture needle to facilitate medical staff to directly draw blood or inject anticoagulants, while firmly grasping the blood collection site and protecting the fingers to prevent accidental injuries to medical staff during blood collection. Utility Model Content

[0006] In order to solve the above problems, the utility model proposes a multifunctional integrated fistula puncture needle to facilitate medical staff to directly draw blood or inject anticoagulants, while firmly grasping the blood collection site and protecting the fingers to prevent accidental injuries to medical staff when drawing blood.

[0007] The utility model is realized by the following technical solutions:

[0008] The utility model proposes a multifunctional integrated internal fistula puncture needle, comprising a main body, one end of which is provided with a needle, the main body is provided with a blood collection site for convenient blood collection using a syringe, the blood collection site comprises an injection port, a shielding portion, and a gripping portion, the injection port is located on the upper surface of the shielding portion, and the gripping portion is fixedly connected to the lower surface of the shielding portion.

[0009] Furthermore, the shielding portion is arranged transversely and has a transverse width of 40 to 45 mm.

[0010] Furthermore, the blood collection site is 50 to 100 mm away from the needle.

[0011] Furthermore, the shielding portion includes two L-shaped baffles, the two L-shaped baffles are laterally symmetrically arranged and both meander downward, and the injection port is located between the two L-shaped baffles.

[0012] Furthermore, the shielding portion also includes a blocking ring, which is fixedly connected to the upper surfaces of the two L-shaped baffles and is arranged around the injection port.

[0013] Furthermore, the gripping portion includes a gripping soft board and two storage spaces, one end of the gripping soft board is fixedly connected to the lower surface of the shielding portion, the shielding portion shields the storage space, and the two storage spaces are respectively located on both sides of the gripping soft board.

[0014] Furthermore, the gripping soft board is provided with an avoidance groove for facilitating the inward compression of two sides of the gripping soft board.

[0015] Furthermore, the avoidance groove is in a straight line shape.

[0016] Furthermore, a plurality of anti-slip protrusion structures arranged in sequence are provided on both sides of the grip soft board.

[0017] Furthermore, the height of the grip soft board is 18 mm.

[0018] Beneficial effects of the utility model:

[0019] The utility model adopts the blood collection part to collect blood. When collecting blood, the medical staff can pinch the pinching part with their fingers. At this time, the blood collection part is firmly pinched and fixed, and then the syringe is inserted into the injection port to collect blood from the channel of the internal fistula puncture needle. Since the shielding part is located above the pinching part, even if the medical staff accidentally pierces the wrong part, the shielding part will block it and will not prick the finger to cause accidental injury. In summary, the multifunctional integrated internal fistula puncture needle can facilitate medical staff to directly collect blood or inject anticoagulants, and at the same time firmly pinch the blood collection part and protect the fingers to prevent medical staff from causing accidental injury when collecting blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the multifunctional integrated internal fistula puncture needle of the utility model;

[0021] Figure 2 This is a schematic diagram of the multifunctional integrated fistula puncture needle of the utility model from another angle.

[0022] The reference numerals are as follows:

[0023] Main body 1, needle 11, blood collection part 12, injection port 121, shielding part 122, L-shaped baffle 1221, blocking ring 1222, gripping part 123, gripping soft plate 1231, avoidance groove 12311, anti-slip protrusion structure 12312, storage space 1232. DETAILED DESCRIPTION

[0024] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0025] Please refer to Figure 1-Figure 2 The utility model proposes a multifunctional integrated internal fistula puncture needle, comprising a main body 1, one end of which is provided with a needle 11, the main body 1 is the whole of the internal fistula puncture needle, the main body 1 is provided with a blood collection site 12 for convenient blood collection using a syringe, the blood collection site 12 is connected to the pipeline of the internal fistula puncture needle, the blood collection site 12 comprises an injection port 121, a shielding portion 122, and a gripping portion 123, the injection port 121 is located on the upper surface of the shielding portion 122, the gripping portion 123 is fixedly connected to the lower surface of the shielding portion 122, and medical staff can insert a syringe from the injection port 121 into the pipeline of the internal fistula puncture needle for blood collection.

[0026] In this embodiment, when drawing blood, the medical staff can pinch the gripping portion 123 with their fingers, and the blood collection site 12 is firmly pinched and fixed. Then, the syringe is inserted into the injection port 121 to draw blood from the tube of the internal fistula puncture needle. Since the shielding portion 122 is located above the pinching portion 123, the fingers of the medical staff are shielded. Even if the medical staff accidentally pierces the wrong side, the shielding portion 122 will block it, and the fingers will not be pierced to cause accidental injuries.

[0027] In summary, the multifunctional integrated fistula puncture needle can facilitate medical staff to directly draw blood or inject anticoagulants, while firmly grasping the blood collection site and protecting the fingers to prevent accidental injuries to medical staff when drawing blood.

[0028] In this embodiment, the shielding portion 122 is disposed in a transverse direction and has a transverse width of 40 to 45 mm. The transverse width of the shielding portion 122 is 40 to 45 mm, and this width range is sufficient to shield the fingers of medical staff.

[0029] In this embodiment, the blood collection site 12 is 50 to 100 mm away from the needle. This distance makes it easy for medical staff to quickly find the blood collection site 12 and perform blood collection.

[0030] In this embodiment, the shielding portion 122 includes two L-shaped baffles 1221, which are laterally symmetrically arranged and both meander downward. The injection port 121 is located between the two L-shaped baffles 1221. The distance between the ends of the two L-shaped baffles 1221 is 40 to 45 mm, which is sufficient to shield the fingers of medical staff. The bent end of the L-shaped baffle 1221 can more effectively shield one side of the finger to prevent the syringe from scratching the finger.

[0031] In this embodiment, the shielding portion 122 also includes a blocking ring 1222, which is fixedly connected to the upper surfaces of the two L-shaped baffles 1221 and is arranged around the injection port 121. The blocking ring 1222 adds an additional protective structure to the L-shaped baffle 1221. Even if the syringe is deflected and slides on the upper surface of the L-shaped baffle 1221, the sliding distance of the syringe needle is limited within the blocking ring 1222 due to the blocking of the blocking ring 1222.

[0032] In this embodiment, the gripping portion 123 includes a gripping soft plate 1231 and two storage spaces 1232. One end of the gripping soft plate 1231 is fixedly connected to the lower surface of the shielding portion 122. The shielding portion 122 shields the storage space 1232. The two storage spaces 1232 are respectively located on both sides of the gripping soft plate 1231. When the medical staff grips the gripping portion 123, the fingers pinch the gripping soft plate 1231. At this time, the two fingers are respectively located in the two storage spaces 1232, so that the gripping portion 123 is firmly gripped. The gripping soft plate 1231 is provided with an avoidance groove 12311 for facilitating the inward compression of the two sides of the gripping soft plate 1231. When the fingers pinch the pinching soft board 1231, the two sides of the pinching soft board 1231 will deform toward the direction of the avoidance groove 12311 to form grooves, which increases the fixing force when the fingers pinch; the avoidance groove 12311 is in a straight line shape, which facilitates the two sides of the pinching soft board 1231 to deform inward; both sides of the pinching soft board 1231 are provided with a plurality of anti-slip protrusion structures 12312 arranged in sequence, and the anti-slip protrusion structures 12312 are used to increase the friction force when the fingers pinch; the height of the pinching soft board 1231 is 18 mm, and the thickness of the pinching soft board 1231 is 4 mm. This height and thickness are the minimum suitable dimensions for the fingers to pinch steadily.

[0033] Of course, the present utility model may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present utility model.

Claims

1. A multifunctional integrated internal fistula puncture needle, comprising a main body, one end of which is provided with a needle, characterized in that: The main body is provided with a blood collection site for convenient blood collection using a syringe, and the blood collection site includes an injection port, a shielding portion, and a gripping portion. The injection port is located on the upper surface of the shielding portion, and the gripping portion is fixedly connected to the lower surface of the shielding portion.

2. The multifunctional integrated internal fistula puncture needle according to claim 1, characterized in that: The shielding portion is arranged transversely and has a transverse width of 40 to 45 mm.

3. The multifunctional integrated internal fistula puncture needle according to claim 1, characterized in that: The blood collection site is 50 to 100 mm away from the needle.

4. The multifunctional integrated internal fistula puncture needle according to claim 1, characterized in that: The shielding portion includes two L-shaped baffles, which are symmetrically arranged in the transverse direction and both meander downward, and the injection port is located between the two L-shaped baffles.

5. The multifunctional integrated internal fistula puncture needle according to claim 4, characterized in that: The shielding portion further comprises a blocking ring, which is fixedly connected to the upper surfaces of the two L-shaped baffles and is arranged around the injection port.

6. The multifunctional integrated internal fistula puncture needle according to claim 1, characterized in that: The gripping portion includes a gripping soft board and two receiving spaces. One end of the gripping soft board is fixedly connected to the lower surface of the shielding portion. The shielding portion shields the receiving space. The two receiving spaces are respectively located on both sides of the gripping soft board.

7. The multifunctional integrated internal fistula puncture needle according to claim 6, characterized in that: The gripping soft board is provided with an avoidance groove for facilitating the inward compression of two sides of the gripping soft board.

8. The multifunctional integrated internal fistula puncture needle according to claim 7, characterized in that: The avoidance groove is in a straight line shape.

9. The multifunctional integrated internal fistula puncture needle according to claim 6, characterized in that: Both sides of the grip soft board are provided with a plurality of anti-slip protrusion structures arranged in sequence.

10. The multifunctional integrated internal fistula puncture needle according to claim 6, characterized in that: The height of the grip soft board is 18 mm.

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