Safe internal arteriovenous fistula puncture needle
By incorporating a drainage tube, protective shell, and limiting plate into the puncture needle, the needle tip is secured and protected, solving the problem of lack of protection after use, reducing the risk of puncture injuries to medical personnel, and ensuring the safety of puncture procedures.
Patent Information
- Application Number
- CN202422824160.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The existing puncture needles lack protection after use, which can easily lead to puncture injuries to medical staff and increase the risk of cross-infection.
A safe arteriovenous fistula puncture needle was designed, which includes a drainage tube, a protective shell, a threaded ring, and a limiting plate. The threaded connection and the limiting plate design can fix and protect the needle tip, preventing the needle tip from being exposed.
This effectively prevents medical staff from being pricked by needles, reduces the risk of cross-infection, and ensures the normal progress of puncture procedures.
Smart Images
Figure CN223586021U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field especially relates to a safe type arteriovenous fistula puncture needle. BACKGROUND
[0002] Puncture needle is composed of needle head and needle stem, the needle head is located at the head of needle stem, the sheath is slidably connected on the needle stem, the reset spring is arranged between the sheath and needle stem and the initial position of sheath is located at the head of needle head and needle stem, the existing puncture needle lacks protection after use, which can easily cause medical staff to be pricked by needle head and thus cross infection and exposure risk are increased. CONTENT OF THE UTILITY MODEL
[0003] The utility model discloses a safe type arteriovenous fistula puncture needle which solves the problem of lack of protection after use of the existing puncture needle, which can easily cause medical staff to be pricked by needle head and thus cross infection and exposure risk are increased.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a safe type arteriovenous fistula puncture needle, comprising a puncture needle main body, a flow guide pipe is arranged on the outer surface of the puncture needle main body, a needle head is connected to one end of the flow guide pipe, a threaded ring is sleeved on the outer surface of the flow guide pipe, a protective shell is sleeved on the outer surface of the threaded ring, a limiting plate is fixedly connected to one end of the protective shell, a first threaded groove is formed in one end of the protective shell, and a second threaded groove is formed in the other end of the protective shell.
[0005] As a preferred embodiment, one end of the protective shell is fixedly connected with a boosting block, a clamping groove is formed in the outer surface of the boosting block, a rubber plate is sleeved in the clamping groove, and a dustproof sticker is arranged on the outer surface of the rubber plate.
[0006] As a preferred embodiment, one side of the rubber plate is fixedly connected with the inner wall of the clamping groove, and one end of the boosting block is fixedly connected with one side of the protective shell.
[0007] As a preferred embodiment, the inner wall of the threaded ring is clampedly connected with the outer surface of the flow guide pipe.
[0008] As a preferred embodiment, the first threaded groove is threadedly connected with the threaded ring, and the second threaded groove is threadedly connected with the threaded ring.
[0009] As a preferred embodiment, the inner wall of the protective shell is slidably connected with the outer surface of the flow guide pipe.
[0010] Compared with the prior art, the utility model has the advantages and positive effects that:
[0011] The utility model discloses a set up the puncture needle main part to guarantee the normal operation of dialysis, set up the needle head puncture normal operation, set up the thread ring to provide a mounting scene for the protection shell, set up the thread groove and the thread ring screw connection, realize the fixed work of protection shell, thereby guarantee the normal operation of puncture, set up the stop plate and limit the movement range of protection shell, guarantee and will not influence the normal operation of puncture. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 A safety type arteriovenous fistula puncture needle is provided.
[0013] Figure 2 A safety type arteriovenous fistula puncture needle is provided.
[0014] Figure 3 A safety type arteriovenous fistula puncture needle is provided.
[0015] Figure 4 A safety type arteriovenous fistula puncture needle is provided.
[0016] LEGEND:
[0017] 1, puncture needle main part, 2, flow guide pipe, 3, protection shell, 31, stop plate, 32, first thread groove, 33, second thread groove, 4, boost block, 41, clamping groove, 5, needle head, 6, thread ring, 7, rubber plate, 8, dustproof paste. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0019] Embodiment 1
[0020] As Figures 1-3 The utility model provides a kind of technical scheme: a safety type arteriovenous fistula puncture needle, including puncture needle main part 1, the outer surface of puncture needle main part 1 is equipped with flow guide pipe 2, one end of flow guide pipe 2 is connected with needle head 5, the outer surface of flow guide pipe 2 is sleeved with thread ring 6, the outer surface of thread ring 6 is sleeved with protection shell 3, one end of protection shell 3 is fixedly connected with stop plate 31, one end of protection shell 3 is equipped with first thread groove 32, the other end of protection shell 3 is equipped with second thread groove 33.
[0021] In this embodiment, the puncture needle body 1 is provided to ensure the normal operation of the puncture work, the flow guide pipe 2 is provided to provide a flow place for blood, the needle head 5 is provided to connect with the blood vessel of the patient, so as to achieve the purpose of puncture dialysis, the thread ring 6 is provided to provide a fixed place for the protective shell 3, so as to ensure that the protective shell 3 will not move, the protective shell 3 is provided to constrain the needle head 5, so as to ensure that the medical staff will not be injured by the needle head 5, thereby reducing the risk of cross infection exposure.
[0022] Embodiment 2
[0023] As shown in Figures 1-4 One end of the protective shell 3 is fixedly connected with the boosting block 4, the outer surface of the boosting block 4 is provided with the clamping groove 41, the clamping groove 41 is sleeved with the rubber plate 7, the outer surface of the rubber plate 7 is provided with the dustproof sticker 8, and one side of the rubber plate 7 is fixedly connected with the inner wall of the clamping groove 41.
[0024] In this embodiment, the boosting block 4 is provided, which is pressed by the fingers of the staff, so that the boosting block 4 is bent, and provides a boosting power for the staff when performing the puncture work, the clamping groove 41 is fixedly connected with the rubber plate 7, so as to ensure that the rubber plate 7 will not fall off, the dustproof sticker 8 is provided to protect the rubber plate 7, so that the surface of the rubber plate 7 will not be contaminated with dust, the rubber plate 7 is provided after the puncture needle enters the blood vessel of the patient, so as to be attached to the skin of the patient, realize the fixation of the puncture needle, and ensure the normal operation of the puncture work.
[0025] Working principle:
[0026] As shown in Figures 1-4As shown, when the staff uses the puncture needle body 1 to puncture the patient, first, the staff separates the second threaded groove 33 from the threaded ring 6, then makes the protective shell 3 slide along the guide pipe 2, when the limiting plate 31 contacts the threaded ring 6, the needle 5 is exposed from the inside of the protective shell 3, then the staff threadedly connects the first threaded groove 32 with the threaded ring 6, realizes the fixation of the protective shell 3, ensures that the protective shell 3 does not move during puncture, thereby affecting the staff to carry out puncture work, through the staff's finger pressing, thereby making the boost block 4 bend, and providing a boost power for the staff to puncture, then the staff inserts the needle 5 into the blood vessel of the patient, makes the blood flow to the inside of the guide pipe 2, then the staff separates the dustproof sticker 8 from the rubber plate 7, then the staff sticks the rubber plate 7 with the skin of the patient, realizes the fixation of the puncture needle, ensures the normal puncture work, after the puncture work is completed, the staff takes out the puncture needle from the inside of the blood vessel of the patient, through separating the first threaded groove 32 from the threaded ring 6, then sliding the protective shell 3 to protect the needle 5, and threadedly connecting the second threaded groove 33 with the threaded ring 6 again, realizes the fixation of the protective shell 3, thereby protecting the needle 5, ensures that the medical staff is not injured by the needle 5, thereby reducing the cross-infection exposure risk.
[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belong to the protection scope of the present application.
Claims
1. A safe type of arteriovenous internal fistula puncture needle comprising a puncture needle body (1), characterized in that: The outer surface of the puncture needle body (1) is provided with a flow guide pipe (2), one end of the flow guide pipe (2) is connected with a needle (5), the outer surface of the flow guide pipe (2) is sleeved with a threaded ring (6), the outer surface of the threaded ring (6) is sleeved with a protective shell (3), one end of the protective shell (3) is fixedly connected with a limiting plate (31), one end of the protective shell (3) is provided with a first threaded groove (32), the other end of the protective shell (3) is provided with a second threaded groove (33).
2. The safety type A-V fistula needle according to claim 1, wherein: One end of the protective shell (3) is fixedly connected with a boost block (4), the outer surface of the boost block (4) is provided with a clamping groove (41), the clamping groove (41) is sleeved with a rubber plate (7), the outer surface of the rubber plate (7) is provided with a dustproof sticker (8).
3. The safety type A-V fistula needle according to claim 2, wherein: One side of the rubber plate (7) is fixedly connected with the inner wall of the clamping groove (41), one end of the boost block (4) is fixedly connected with one side of the protective shell (3).
4. The safety type A-V fistula needle according to claim 1, wherein: The inner wall of the threaded ring (6) is clampedly connected with the outer surface of the flow guide pipe (2).
5. The safety type A-V fistula needle according to claim 1, wherein: The first threaded groove (32) is in threaded connection with the threaded ring (6), and the second threaded groove (33) is in threaded connection with the threaded ring (6).
6. The safety type A-V fistula needle according to claim 1, wherein: The inner wall of the protective shell (3) is in sliding connection with the outer surface of the flow guide pipe (2).