Internal fistula needle for hemodialysis treatment

Abstract

An internal fistula needle for hemodialysis treatment relates to the technical field of medical instruments and comprises an internal fistula needle tube, the tail of the internal fistula needle tube is in threaded connection with a screw cap, the head of the internal fistula needle tube is provided with a first needle head, a branch tube is communicated and fixed to the position, close to the first needle head, of the internal fistula needle tube, and the tail of the branch tube is provided with a second needle head. According to the internal fistula needle for hemodialysis treatment, when blood needs to be drawn in the dialysis process of a patient, the risk that a pipeline is polluted can be reduced, a transfer needle tube is not needed, cost can be saved, operation is easy and fast, the risk of errors is reduced, meanwhile, the internal fistula needle can be used for hemodialysis treatment, and the internal fistula needle can be used for hemodialysis treatment. The blood loss risk in the operation process is greatly reduced, the risk that large external force is generated on the pipeline is not likely to happen, operation of clinical personnel is better facilitated, using is safer, adverse events such as needle pricking injury and blood loss can be reduced, and the effect of improving the comfort level, the satisfaction degree and the nursing quality of a patient is achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an arteriovenous fistula needle for hemodialysis treatment. Background Technology

[0002] Dialysis safety is the most important part of hemodialysis treatment. When patients need to have blood drawn for testing during dialysis treatment, the current arteriovenous fistula needle requires unscrewing the spiral cap at the end of the fistula needle to draw blood and then injecting it into the test tube for testing. The operation is easy to contaminate the tubing and may cause other risks to the patient. The operation is also cumbersome and complicated for nurses.

[0003] Currently, when blood is drawn for testing after arteriovenous fistula puncture in conventional hemodialysis patients, the screw cap must be unscrewed before blood is drawn, which carries the risk of multiple exposures, easily leading to tubing infection and contamination. The procedure is cumbersome and prone to errors, resulting in unnecessary abnormalities. Furthermore, improper operation can easily lead to blood leakage. The process of unscrewing the connector can pull on the tubing, causing unnecessary pain to the patient and even the risk of needle dislodgement and other unnecessary blood loss. In addition, the need for needle transfer is relatively wasteful. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide an arteriovenous fistula needle for hemodialysis treatment. This needle reduces the risk of tubing contamination when blood needs to be drawn during dialysis. It eliminates the need for intermediate needle tubes, saving costs, and is simple and quick to operate, reducing the risk of errors. Simultaneously, it significantly reduces the risk of blood loss during operation and is less likely to exert significant external force on the tubing, making it easier for clinical personnel to operate and safer to use. It can reduce the occurrence of adverse events such as needlestick injuries and blood loss, and improve patient comfort, satisfaction, and quality of care, effectively solving the problems in the background art.

[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0006] An arteriovenous fistula needle for hemodialysis treatment includes an arteriovenous fistula tube, a spiral cap threaded to the tail of the arteriovenous fistula tube, a first needle tip at the head of the arteriovenous fistula tube, a branch tube connected and fixed near the first needle tip on the arteriovenous fistula tube, a second needle tip at the tail of the branch tube, a first tube clamp sleeved near the middle of the arteriovenous fistula tube, and a second tube clamp sleeved on the branch tube.

[0007] Furthermore, both the first and second pipe clamps are Robert clamps.

[0008] Furthermore, the end of the fistula needle is provided with a spiral interface, and the spiral cap is threadedly connected to the spiral interface.

[0009] Further, the first needle protection cap is connected to the head of the internal fistula needle tube and covers the first needle.

[0010] Further, the second needle protection cap is connected to the tail of the branch pipe and covers the second needle.

[0011] Compared with the prior art, the blood dialysis treatment internal fistula needle has the following advantages: when blood testing is needed during blood dialysis treatment, the second needle is exposed, then the second pipe clamp on the branch pipe is loosened, at this time, the branch pipe and the internal fistula needle tube are in communication, then blood drawing operation is performed through the first needle, when blood drawing is not needed, the second pipe clamp on the branch pipe is in a closed state, at this time, the internal fistula needle behaves as an existing ordinary internal fistula needle, which can reduce the risk of pipeline contamination when blood drawing is needed during patient dialysis, does not need a transfer needle tube, can save cost, and is simple and fast to operate, reduces the risk of mistakes, greatly reduces the risk of blood loss during operation, and is not easy to cause a large external force to the pipeline, is more beneficial to clinical personnel operation, is safer to use, can reduce needle stick injury, blood loss and other adverse events, and achieves the effects of improving patient comfort, satisfaction and nursing quality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional structure schematic diagram of the utility model;

[0013] Fig. 2 It is a first needle local structure schematic diagram of the utility model.

[0014] In the figure: 1-internal fistula needle tube, 2-spiral interface, 3-spiral cap, 4-first pipe clamp, 5-second needle protection cap, 6-branch pipe, 7-second pipe clamp, 8-first needle, 9-first needle protection cap, 10-second needle. DETAILED DESCRIPTION

[0015] The utility model can be explained in detail through the following examples, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0016] Please refer to Figs. 1-2The embodiment provides a technical scheme: an internal fistula needle for hemodialysis treatment, which comprises an internal fistula needle tube 1, a spiral cap 3 which is threadedly connected to the tail of the internal fistula needle tube 1, a first needle head 8 which is arranged at the head of the internal fistula needle tube 1, a branch pipe 6 which is fixedly connected to the internal fistula needle tube 1 and is arranged at a position close to the first needle head 8, a second needle head 10 which is arranged at the tail of the branch pipe 6, a first pipe clamp 4 which is sleeved on the internal fistula needle tube 1 and is arranged at a position close to the middle of the internal fistula needle tube 1, and a second pipe clamp 7 which is sleeved on the branch pipe 6, wherein the first pipe clamp 4 and the second pipe clamp 7 are both Robert clamps, the second needle head 10 is exposed when blood testing is needed during hemodialysis treatment of a patient, then the second pipe clamp 7 on the branch pipe 6 is loosened, at this time, the branch pipe 6 is in communication with the internal fistula needle tube 1, then blood sampling is performed through the first needle head 8, when blood sampling is not needed, the second pipe clamp 7 on the branch pipe 6 is in a closed state, at this time, the internal fistula needle is a common internal fistula needle, the first pipe clamp 4 can open or close the internal fistula needle tube 1, the internal fistula needle can reduce the risk of pipeline contamination when blood sampling is needed during dialysis of a patient, does not need a transfer needle tube, can save cost, is simple and fast to operate, reduces the risk of mistakes, greatly reduces the risk of blood loss during operation, is not prone to causing a great external force to the pipeline, is more beneficial to clinical personnel to operate, is safer to use, can reduce adverse events such as needle stick injury and blood loss, and can improve patient comfort, satisfaction and nursing quality.

[0017] The tail of the internal fistula needle tube 1 is provided with a spiral interface 2, and the spiral cap 3 is threadedly connected with the spiral interface 2, so that the spiral cap 3 is convenient to connect and detach and is convenient to use.

[0018] The first needle head 8 is covered by a first needle head protection cap 9 which is connected to the head of the internal fistula needle tube 1, and the second needle head 10 is covered by a second needle head protection cap 5 which is connected to the tail of the branch pipe 6, so that the needle heads are protected by the first needle head protection cap 9 and the second needle head protection cap 5, thereby avoiding that the needle heads injure the staff.

[0019] The working principle of the internal fistula needle for hemodialysis treatment is as follows: when blood testing is needed during hemodialysis treatment of a patient, the second needle head protection cap 5 can be pulled off, so that the second needle head 10 is exposed, then the second pipe clamp 7 on the branch pipe 6 is loosened, at this time, the branch pipe 6 is in communication with the internal fistula needle tube 1, then blood sampling is performed through the first needle head 8, when blood sampling is not needed, the second pipe clamp 7 on the branch pipe 6 is in a closed state, at this time, the internal fistula needle is a common internal fistula needle, and the first pipe clamp 4 can open or close the internal fistula needle tube 1.

[0020] It is worth noting that the components disclosed in the above embodiments are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0021] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances, such as rotary connection can be rotary connection through bearing.

[0022] The part not described in detail in the present application is the prior art, although the present application is specifically shown and introduced in combination with the preferred embodiment, there are many specific implementation methods and approaches for the technical scheme, and the above description is only the preferred embodiment of the present application, but those skilled in the art should understand that various changes can be made in form and detail without departing from the spirit and scope of the present application defined in the appended claims, and all changes are within the protection scope of the present application.

Claims

1. An internal fistula needle for hemodialysis treatment, comprising an internal fistula needle tube (1), characterized in that: The tail of the internal fistula needle tube (1) is threadedly connected with a screw cap (3), the head of the internal fistula needle tube (1) is provided with a first needle head (8), a branch pipe (6) is fixedly connected to the internal fistula needle tube (1) and communicates with the internal fistula needle tube (1) near the first needle head (8), the tail of the branch pipe (6) is provided with a second needle head (10), a first pipe clamp (4) is sleeved on the internal fistula needle tube (1) near the middle part, and a second pipe clamp (7) is sleeved on the branch pipe (6).

2. The internal fistula needle for hemodialysis treatment according to claim 1, characterized in that: The first pipe clamp (4) and the second pipe clamp (7) are both Robert clamps.

3. The internal fistula needle for hemodialysis treatment according to claim 1, wherein: The tail of the internal fistula needle tube (1) is provided with a screw interface (2), and the screw cap (3) is threadedly connected with the screw interface (2).

4. The internal fistula needle for hemodialysis treatment according to claim 1, wherein: A first needle head protection cap (9) is further included, which is connected to the head of the internal fistula needle tube (1) and covers the first needle head (8).

5. The internal fistula needle for hemodialysis treatment according to claim 1, wherein: A second needle head protection cap (5) is further included, which is connected to the tail of the branch pipe (6) and covers the second needle head (10).

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