Simple internal fistula puncture positioning card

Abstract

The utility model relates to the technical field of internal fistula puncture, especially to a simple internal fistula puncture positioning card, which pulls out the positioning mechanism from the storage mechanism and sticks the positioning mechanism on the arm of a patient to realize positioning of the blood vessel access in the arm of the patient, and then stores the positioning mechanism in the storage mechanism after use, thereby improving the practicability of the simple internal fistula puncture positioning card, comprising a positioning mechanism, further comprising a storage mechanism, the positioning mechanism is installed on the storage mechanism, the positioning mechanism positions the puncture position, and the storage mechanism stores the positioning mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of arteriovenous fistula puncture, and in particular to a simple arteriovenous fistula puncture positioning card. Background Technology

[0002] Arteriovenous fistula (AVF) puncture is a surgical procedure that anastomoses an artery and a vein to create a superficial vascular access with sufficient blood flow. It is used for repeated punctures during hemodialysis. Generally, doctors need to locate the puncture site before the puncture, or locate it under the guidance of equipment such as ultrasound, which is time-consuming and labor-intensive.

[0003] For example, a venipuncture positioning card disclosed in utility model patent CN219043016U and a CT-guided puncture positioning card disclosed in utility model patent CN215606120U can be used to locate blood vessels in venipuncture and other puncture procedures.

[0004] However, there is currently a lack of positioning cards for arteriovenous fistula puncture, and the positioning cards are inconvenient to store after use, resulting in poor practicality. Therefore, there is an urgent need for a simple arteriovenous fistula puncture positioning card to improve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a simple arteriovenous fistula puncture positioning card that allows the positioning mechanism to be pulled out from the storage mechanism and attached to the patient's arm to locate the vascular access in the patient's arm. After use, the positioning mechanism can be put back into the storage mechanism, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0006] This utility model provides a simple arteriovenous fistula puncture positioning card, which includes a positioning mechanism and a storage mechanism, with the positioning mechanism installed on the storage mechanism. The positioning mechanism locates the puncture site, and the storage mechanism stores the positioning mechanism. Pull the positioning mechanism out of the storage mechanism and attach it to the patient's arm to locate the vascular access in the patient's arm. After use, put the positioning mechanism back into the storage mechanism, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0007] Preferably, the positioning mechanism includes a positioning card body, which is mounted on a storage mechanism, and the positioning card body is provided with multiple sets of positioning holes and anastomoses. After the patient undergoes arterial-venous anastomosis, the positioning card body is attached to the patient's arm. According to the patient's vascular access, multiple sets of positioning holes and anastomoses are punched on the positioning card body. When the patient is undergoing dialysis, the positioning card body is attached to the patient's arm, aligning the anastomoses on the positioning card body with the anastomoses on the patient's arm. Then, the doctor performs puncture according to the position of the positioning holes on the positioning card body, thereby improving the practicality of the simplified arteriovenous fistula puncture positioning card.

[0008] Preferably, the storage mechanism includes a shell, a rotating shaft, a connecting strap one, and a pin. The rotating shaft is rotatably installed inside the shell, and one end of the connecting strap one is fixedly installed on the rotating shaft. The positioning card body is provided with a connecting strap two, and the connecting strap two is rotatably installed on the connecting strap one by the pin. After the positioning card body is used, the positioning card body is rolled up and stored in the shell by rotating the rotating shaft, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0009] Preferably, the left and front ends of the outer shell are provided with openings, the openings at the left and front ends of the outer shell are connected, and the height of the opening at the front end of the outer shell is less than the height of the opening on the left side of the outer shell. The connecting band two is provided with a slot. When locating the vascular access in the patient's arm, by twisting the positioning card body, the positioning card body rotates around the pin as the center, and the slot on the connecting band two is engaged into the opening at the front end of the outer shell, preventing the positioning card body from retracting into the outer shell, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0010] Preferably, the rotating shaft is rotatably installed inside the outer casing via two sets of coil springs; after the positioning card body is used, the positioning card body is moved to the left side of the outer casing by twisting the positioning card body, and then the positioning card body is released. Through the elasticity of the two sets of coil springs, the rotating shaft rolls up the positioning card body, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0011] Preferably, a limiting block is provided on the other end of the positioning card body; this facilitates pulling the positioning card body out of the shell, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0012] Preferably, the outer casing is provided with a hanging ring; this allows the user to hang the outer casing in a designated location.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the positioning mechanism is pulled out from the storage mechanism and attached to the patient's arm to locate the vascular access in the patient's arm. After use, the positioning mechanism is put back into the storage mechanism, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model in use; Figure 3 This is a top view cross-sectional structural diagram of the outer shell of this utility model; Figure 4 This is a schematic diagram of the positioning card body of this utility model when it is inserted into the outer shell.

[0015] The following are marked in the attached diagram: 1. Positioning card body; 2. Outer shell; 3. Rotating shaft; 4. Connecting belt one; 5. Pin; 6. Connecting belt two; 7. Card slot; 8. Disc spring; 9. Limiting block; 10. Lifting ring. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] Example like Figures 1 to 4 As shown, a simple arteriovenous fistula puncture positioning card includes a positioning mechanism and a storage mechanism, with the positioning mechanism mounted on the storage mechanism. The positioning mechanism locates the puncture site, and the storage mechanism stores the positioning mechanism. The positioning mechanism includes a positioning card body 1, which is installed on the storage mechanism, and the positioning card body 1 is provided with multiple sets of positioning holes and mating openings; The storage mechanism includes a shell 2, a rotating shaft 3, a connecting belt 4, and a pin 5. The rotating shaft 3 is rotatably installed inside the shell 2. One end of the connecting belt 4 is fixedly installed on the rotating shaft 3. The positioning card body 1 is provided with a connecting belt 6, and the connecting belt 6 is rotatably installed on the connecting belt 4 through the pin 5. The left and front ends of the outer shell 2 are provided with openings, the openings at the left and front ends of the outer shell 2 are connected, and the height of the opening at the front end of the outer shell 2 is less than the height of the opening on the left side of the outer shell 2. The connecting strip 6 is provided with a slot 7. The rotating shaft 3 is rotatably mounted inside the outer casing 2 via two sets of disc springs 8; A limit block 9 is provided on the other end of the positioning card body 1; The outer casing 2 is provided with a lifting ring 10; After the arterial-venous anastomosis is performed on the patient, the positioning card body 1 is attached to the patient's arm. Multiple positioning holes and anastomosis sites are drilled on the positioning card body 1 according to the patient's vascular access. Then, a pin 5 is passed through connecting belt one 4 and connecting belt two 6, causing connecting belt two 6 to rotate and mount onto connecting belt one 4. The positioning card body 1 is then released, and the elasticity of the two sets of coil springs 8 causes the rotating shaft 3 to rotate, rolling up the positioning card body 1. During dialysis, the positioning card body 1 is pulled out of the outer shell 2. By twisting the positioning card body 1, it rotates around the pin 5, thus... The slot 7 on the connecting strap 26 is inserted into the opening at the front end of the outer shell 2 to prevent the positioning card body 1 from retracting into the outer shell 2. The positioning card body 1 is then placed on the patient's arm, aligning the anastomosis on the positioning card body 1 with the anastomosis on the patient's arm. The doctor then performs the puncture according to the position of the positioning hole on the positioning card body 1. After use, the positioning card body 1 is moved to the left side of the outer shell 2 by twisting it. Then, the positioning card body 1 is released, and the elasticity of the two sets of coil springs 8 causes the rotating shaft 3 to roll up the positioning card body 1 again, thereby improving the practicality of the simple arteriovenous fistula puncture positioning card.

[0018] The rotating shaft 3 and the disc spring 8 of this simple arteriovenous fistula puncture positioning card are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A simple arteriovenous fistula puncture positioning card, comprising a positioning mechanism; characterized in that, It also includes a storage mechanism, with a positioning mechanism installed on the storage mechanism; The positioning mechanism locates the puncture site, and the storage mechanism stores the positioning mechanism.

2. The simplified arteriovenous fistula puncture positioning card as described in claim 1, characterized in that, The positioning mechanism includes a positioning card body (1), which is installed on the storage mechanism, and the positioning card body (1) is provided with multiple sets of positioning holes and mating openings.

3. A simplified arteriovenous fistula puncture positioning card as described in claim 2, characterized in that, The storage mechanism includes a shell (2), a rotating shaft (3), a connecting belt (4) and a pin (5). The rotating shaft (3) is rotatably installed inside the shell (2). One end of the connecting belt (4) is fixedly installed on the rotating shaft (3). The positioning card body (1) is provided with a connecting belt (6), and the connecting belt (6) is rotatably installed on the connecting belt (4) through the pin (5).

4. The simplified arteriovenous fistula puncture positioning card as described in claim 3, characterized in that, The left and front ends of the outer shell (2) are provided with openings, the openings of the left and front ends of the outer shell (2) are connected, and the height of the opening at the front end of the outer shell (2) is less than the height of the opening on the left side of the outer shell (2). The connecting band (6) is provided with a slot (7).

5. A simplified arteriovenous fistula puncture positioning card as described in claim 3, characterized in that, The rotating shaft (3) is rotatably mounted inside the outer casing (2) via two sets of disc springs (8).

6. A simplified arteriovenous fistula puncture positioning card as described in claim 2, characterized in that, A limit block (9) is provided on the other end of the positioning card body (1).

7. A simplified arteriovenous fistula puncture positioning card as described in claim 3, characterized in that, The outer shell (2) is provided with a lifting ring (10).

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