Dialysis puncture needle convenient to fix

Abstract

The dialysis puncture needle convenient to fix comprises a needle head and a needle handle which are connected with each other, the rear end of the needle handle is connected with a hose, the needle handle comprises a middle handle body, handle wings are arranged on the left side and the right side of the middle handle body respectively, at least two connecting pieces which are spaced front and back are arranged on the outer sides of the two handle wings respectively, and the connecting pieces are connected with the hose. Mounting frames are fixed on the two connecting pieces, a plurality of groups of first connecting belts and second connecting belts are respectively arranged on the outer sides of the two mounting frames, the first connecting belts and the second connecting belts are arranged in a one-to-one correspondence manner, and a magic tape son surface and a magic tape mother surface are respectively arranged at the end parts of each first connecting belt and each second connecting belt. The hemodialysis puncture needle can be fixed more firmly, skin allergy of a patient is prevented, and the patient can use the hemodialysis puncture needle more comfortably.

Description

Technical Field

[0001] This utility model belongs to the field of dialysis needles, and specifically relates to a dialysis puncture needle that is easy to fix. Background Technology

[0002] Arteriovenous fistula (AVF) puncture is a crucial step in hemodialysis treatment, typically involving inserting a dialysis needle into the body for dialysis. After the dialysis needle is inserted, it is usually secured with adhesive tape. However, many patients experience allergic reactions to the tape, leading to scratching and significant discomfort and pain. Sometimes, sweating can also cause the tape to become loose.

[0003] Dialysis puncture needles are also used in conjunction with indwelling needles, but existing indwelling needles need to be folded back after use, which inevitably causes bleeding and makes it inconvenient to administer additional medications, rehydration fluids, or draw blood. Utility Model Content

[0004] The purpose of this invention is to provide a convenient and secure dialysis needle that can more firmly fix the dialysis needle, prevent skin allergies in patients, and make the use of the needle more comfortable.

[0005] The purpose of this utility model is achieved as follows: a conveniently fixed dialysis puncture needle includes a needle tip and a needle handle connected to each other. A flexible tube is connected to the rear end of the needle handle. The needle handle includes a central handle body. Handle wings are provided on both the left and right sides of the central handle body. At least two connecting members with front-to-back spacing are provided on the outer sides of the two handle wings. A mounting frame is fixed on the two connecting members. Several sets of first connecting straps and second connecting straps are respectively provided on the outer sides of the two mounting frames. Each first connecting strap and each second connecting strap are provided in a one-to-one correspondence. The ends of each first connecting strap and each second connecting strap are respectively provided with a Velcro front side and a Velcro back side.

[0006] In operation, after the puncture needle is inserted into the patient's skin, the first and second connecting straps on both sides of the needle handle are stretched outwards and taut. Then, the corresponding first and second connecting straps on both sides are fastened and secured with Velcro, thus tightly binding the first and second connecting straps to the patient's arm and completing the fixation. Compared with existing technologies, the advantages of this invention are: it can more firmly fix the dialysis puncture needle, prevent skin allergies in patients, and make the use more comfortable for patients.

[0007] As a further improvement of this utility model, the connecting member includes a connecting plate, and a connecting sleeve is provided on the right side of the connecting plate.

[0008] As a further improvement of this utility model, the mounting frame includes two longitudinally arranged connecting rods, with an arc-shaped connecting hoop between the front ends of the two connecting rods. The connecting rod on the inward side passes through the connecting sleeve, and the first connecting band and the second connecting band are respectively connected to the corresponding connecting rod on the outward side. An arc-shaped positioning hoop is provided between the rear ends of the two connecting rods. The mounting frame can be fixedly installed and connected to the needle handle.

[0009] As a further improvement of this utility model, the positioning hoop is rotatably connected to the support at the rear end of the corresponding connecting rod on the outward side. The other end of the positioning hoop is provided with a fixing plate one, and the rear end of the corresponding connecting rod on the inward side is provided with a fixing plate two. The fixing plate one and the fixing plate two are fixedly connected by bolts and nuts. The mounting frame and the needle handle are detachably connected. After loosening the bolts and nuts, rotating the positioning hoop separates the mounting frame from the two connecting parts. The mounting frame can be reused after disinfection.

[0010] As a further improvement of this utility model, both the first and second connecting strips are provided with a plurality of breathable micropores. The pore diameter of the breathable micropores is 1-2mm, which provides good breathability and prevents allergies.

[0011] As a further improvement of this utility model, the flexible tube is equipped with a tube clamp and a movable spring-loaded anti-puncture sleeve. It can be clamped when connecting the tubing, and springs back to prevent needle tip puncture after needle removal.

[0012] As a further improvement of this utility model, the needle tip and needle handle are correspondingly arranged with the indwelling needle. The rear end of the indwelling needle is connected to a three-way connector. The three-way connector includes a central cylinder, with an inlet tube and an outlet tube 1 respectively at the front and rear ends of the central cylinder. An outlet tube 2 is connected to the side of the central cylinder. Both outlet tube 1 and outlet tube 2 have caps at their ends. The central cylinder is equipped with a regulating valve to control the opening and closing of outlet tube 1 and outlet tube 2. The regulating valve controls the opening or closing of the corresponding outlet tube 2 and outlet tube 1 of the three-way connector. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0016] Figure 4 This is a structural diagram of the connector, mounting frame, and second connecting strip.

[0017] Figure 5 This is a schematic diagram of the structure of an indwelling needle.

[0018] The components include: 1. Needle tip; 2. Needle handle; 2a. Central handle body; 2b. Handle wing; 3. Hose; 4. Connector; 4a. Connecting plate; 4b. Connecting sleeve; 5. Mounting frame; 5a. Connecting rod; 5b. Connecting clamp; 5c. Positioning clamp; 6. First connecting band; 7. Second connecting band; 8. Velcro front face; 9. Velcro female face; 10. Support; 11. Fixing plate one; 12. Fixing plate two; 13. Bolt; 13a. Nut; 14. Vent micropore; 15. Tube clamp; 16. Rebound anti-puncture sleeve; 17. Indwelling needle; 18. T-connector; 18a. Central cylinder; 18b. Inlet tube; 18c. Outlet tube one; 18d. Outlet tube two; 19. Adjusting valve. Detailed Implementation

[0019] like Figure 1-5 The diagram shows a conveniently fixed dialysis puncture needle, comprising a needle tip 1 and a needle handle 2 connected to each other. A flexible tube 3 is connected to the rear end of the needle handle 2. The flexible tube 3 is equipped with a tube clamp 15 and a movable, spring-loaded anti-puncture sleeve 16; it can be clamped when connecting tubing and springs back to prevent needle tip puncture after needle removal. The needle handle 2 includes a central handle body 2a, with handle wings 2b on both sides. At least two spaced-ahead connecting pieces 4 are provided on the outer sides of each handle wing 2b. Mounting frames 5 are fixed to the two connecting pieces 4. Several sets of first connecting straps 6 and second connecting straps 7 are respectively provided on the outer sides of the two mounting frames 5. Each first connecting strap 6 and each second connecting strap 7 is arranged in a one-to-one correspondence. Each end of each first connecting strap 6 and second connecting strap 7 has a Velcro front surface 8 and a Velcro back surface 9. Several breathable micropores 14 are provided on both the first connecting straps 6 and second connecting straps 7. The pore diameter of the breathable micropores 14 is 1-2 mm, providing good breathability and preventing allergies.

[0020] The connecting component 4 includes a connecting plate 4a, and a connecting sleeve 4b is provided on the right side of the connecting plate 4a. The mounting frame 5 includes two longitudinally arranged connecting rods 5a, and an arc-shaped connecting hoop 5b is provided between the front ends of the two connecting rods 5a. The connecting rod 5a on the inward side is fitted through the connecting sleeve 4b. The first connecting band 6 and the second connecting band 7 are respectively connected to the corresponding connecting rod 5a on the outward side. An arc-shaped positioning hoop 5c is provided between the rear ends of the two connecting rods 5a. The mounting frame 5 can be fixedly installed and connected to the needle handle 2. The positioning hoop 5c is rotatably connected to the support 10 at the rear end of the corresponding connecting rod 5a on the outward side. The other end of the positioning hoop 5c is provided with a fixing plate 11, and the rear end of the corresponding connecting rod 5a on the inward side is provided with a fixing plate 2. The fixing plate 11 and the fixing plate 2 12 are fixedly connected by bolts 13 and nuts 13a. The mounting frame 5 is detachably connected to the needle handle 2. After loosening the bolt 13 and nut 13a, rotate the positioning hoop 5c to separate the mounting frame 5 from the two connecting parts 4. The mounting frame 5 can be reused after disinfection.

[0021] The needle tip 1 and needle handle 2 are correspondingly arranged with the indwelling needle 17. The rear end of the indwelling needle 17 is connected to a three-way connector 18. The three-way connector 18 includes a central cylinder 18a. The front and rear ends of the central cylinder 18a are respectively provided with an inlet tube 18b and an outlet tube 18c. An outlet tube 2 18d is connected to the side of the central cylinder. Both outlet tube 18c and outlet tube 2 18d are provided with caps. The central cylinder 18a is provided with a regulating valve 19 for controlling the opening and closing of outlet tube 18c and outlet tube 2 18d. The regulating valve 19 is correspondingly arranged with the needle tip 1 of the puncture needle. The regulating valve 19 controls the opening or closing of the corresponding outlet tube 2 18d and outlet tube 18c of the three-way connector 18.

[0022] In operation, after the puncture needle is inserted into the patient's skin, the first connecting straps 6 and second connecting straps 7 on both sides of the needle handle 2 are stretched outwards and taut. Then, the corresponding first connecting straps 6 and second connecting straps 7 on both sides are fastened and secured with Velcro, thus tightly binding the first connecting straps 6 and second connecting straps 7 to the patient's arm, completing the fixation. The advantages of this invention are: it can more firmly fix the dialysis puncture needle, prevent skin allergies in patients, and make the patient more comfortable to use.

[0023] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A conveniently fixed dialysis puncture needle, comprising a needle tip and a needle handle connected to each other, wherein a flexible tube is connected to the rear end of the needle handle, characterized in that, The needle handle includes a central handle body, with handle wings on both the left and right sides of the central handle body. At least two connecting members spaced apart front and back are provided on the outer sides of the two handle wings. Mounting frames are fixed on the two connecting members. Several sets of first connecting straps and second connecting straps are respectively provided on the outer sides of the two mounting frames. Each first connecting strap and each second connecting strap are provided in a one-to-one correspondence. The ends of each first connecting strap and each second connecting strap are respectively provided with a Velcro front side and a Velcro back side.

2. The conveniently fixed dialysis puncture needle according to claim 1, characterized in that, The connecting component includes a connecting plate, and a connecting sleeve is provided on the right side of the connecting plate.

3. The conveniently fixed dialysis puncture needle according to claim 2, characterized in that, The mounting frame includes two longitudinally arranged connecting rods, with an arc-shaped connecting hoop between the front ends of the two connecting rods. The connecting rod on the inward side is fitted through the connecting sleeve. The first connecting belt and the second connecting belt are respectively connected to the corresponding connecting rod on the outward side. An arc-shaped positioning hoop is provided between the rear ends of the two connecting rods.

4. The conveniently fixed dialysis puncture needle according to claim 3, characterized in that, The positioning hoop is rotatably connected to the support at the rear end of the corresponding connecting rod on the outward side. The other end of the positioning hoop is provided with a fixing plate one, and the rear end of the corresponding connecting rod on the inward side is provided with a fixing plate two. The fixing plate one and the fixing plate two are fixedly connected by bolts and nuts.

5. A conveniently fixed dialysis puncture needle according to claim 3 or 4, characterized in that, Both the first and second connecting strips have several breathable micropores.

6. A conveniently fixed dialysis puncture needle according to claim 3 or 4, characterized in that, The hose is equipped with a hose clamp and a movable spring-loaded anti-puncture sleeve.

7. A conveniently fixed dialysis puncture needle according to claim 3 or 4, characterized in that, The needle tip and needle handle are provided corresponding to the indwelling needle. The rear end of the indwelling needle is connected to a three-way connector. The three-way connector includes a central tube. The front and rear ends of the central tube are respectively provided with an inlet tube and an outlet tube one. The side of the central tube is connected to an outlet tube two. Both outlet tube one and outlet tube two are provided with caps. The central tube is provided with a regulating valve to control the opening and closing of outlet tube one and outlet tube two.

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