Disposable internal arteriovenous fistula puncture blood taking needle

Abstract

The utility model relates to the technical field of medical treatment, in particular to a disposable internal arteriovenous fistula puncture blood taking needle which comprises an internal arteriovenous fistula puncture needle, a pipeline, a check valve and a catheter connecting piece. The internal arteriovenous fistula puncture needle is mounted at the front end of the pipeline, and a needle handle is arranged on the internal arteriovenous fistula puncture needle; the check valve is mounted on the pipeline; the guide pipe connecting piece is installed at the tail end of the pipeline, and the guide pipe connecting piece is sleeved with a protective sleeve. According to the disposable internal arteriovenous fistula puncture blood taking needle, the design that the puncture needle, the pipeline, the check valve and the catheter connecting piece are combined is adopted, the catheter connecting piece is connected to the tail end of the pipeline, and blood taking operation can be directly conducted; after blood sampling is completed, the pipeline is connected with the dynamic and static vessel pipeline; blood does not need to be drawn by using an injector and then sub-packaged into each blood collection tube, so that the pollution risk is reduced; operation is convenient, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical technology field, especially one -off use arteriovenous fistula puncture blood taking needle. BACKGROUND

[0002] At present, arteriovenous fistula puncture needle of hemodialysis patient is only used to establish extracorporeal circulation when dialysis treatment, if the patient needs to collect blood sample before dialysis treatment, usually connect the syringe on the internal fistula puncture needle, then the blood in the syringe is distributed and injected into each blood collection tube. But there are certain defects in blood collection using the syringe: first, the syringe blood extraction and then dismounting the syringe, the process of subpackaging, blood sample will be inevitably contaminated or splashed, causing the operating table and the contamination of the hands of the nurse, and the pipeline exposure time, times, increase blood-borne contamination and cross infection probability, second, the whole blood collection process operation link is more, is not favorable for medical staff operation, and prolongs the treatment time of the patient, increases the pain of the patient. For this reason, the utility model provides one -off use arteriovenous fistula puncture blood taking needle. UTILITARIAN CONTENT

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides one -off use arteriovenous fistula puncture blood taking needle, its structure is practical, and it is convenient to popularize.

[0004] One -off use arteriovenous fistula puncture blood taking needle, including arteriovenous fistula puncture needle, pipeline, check valve and catheter connecting piece,

[0005] The arteriovenous fistula puncture needle is installed at the front end of the pipeline, and the needle handle is arranged on the arteriovenous fistula puncture needle.

[0006] The check valve is installed on the pipeline.

[0007] The catheter connecting piece is installed at the end of the pipeline, and the protective sleeve is sleeved on the catheter connecting piece.

[0008] As preferred, the catheter connecting piece is detachable, and the catheter connecting piece is used for connecting an external negative pressure blood collection tube.

[0009] As preferred, after the catheter connecting piece is detached, the end of the pipeline is connected to an arteriovenous pipeline.

[0010] As preferred, the end of the pipeline is a circular truncated cone type interface, and the handle is arranged outside the interface.

[0011] The utility model has the advantages of:

[0012] The utility model discloses a disposable arteriovenous fistula puncture blood taking needle, adopt the design of puncture needle, pipeline, check valve and catheter connecting piece combination, the catheter connecting piece is connected in the terminal of pipeline, can directly carry out blood taking operation, after blood taking, pipeline connects arteriovenous fistula pipeline on the machine, does not need to use the syringe blood extraction and then divides and packs into each blood taking tube, reduces the risk of pollution, convenient operation improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0014] Figure 1 It is the overall structural diagram of the utility model;

[0015] Figure 2 It is the structure diagram of the utility model's connecting arteriovenous fistula pipeline on the machine;

[0016] 1-arteriovenous fistula puncture needle, 11-needle handle, 2-pipeline, 21-handle, 3-check valve, 4-catheter connecting piece. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the following will be combined with the drawing in the embodiment of the utility model, and the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiments. The components of the embodiment of the utility model described and shown in the drawing here can be arranged and designed in various different configurations.

[0018] In the description of the embodiment of the utility model, it needs to be explained that if the orientation or position relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. appears, is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the utility model product when using, is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction of the utility model. In addition, the terms "first", "second", "third" etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0019] In addition, if the terms "horizontal", "vertical", "overhanging" and the like are used, it does not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0020] As shown in the drawings, the disposable arteriovenous fistula puncture blood taking needle comprises an arteriovenous fistula puncture needle 1, a pipeline 2, a check valve 3 and a catheter connecting piece 4.

[0021] The arteriovenous fistula puncture needle 1 is installed at the front end of the pipeline 2, and a needle handle 11 is arranged on the arteriovenous fistula puncture needle 1.

[0022] The check valve 3 is installed on the pipeline 2.

[0023] The catheter connecting piece 4 is installed at the end of the pipeline 2, and a protective sleeve is sleeved on the catheter connecting piece 4. The end of the pipeline 2 is a circular truncated cone type interface, and a handle 21 is arranged outside the interface.

[0024] In use, the catheter connecting piece 4 is detachable; the catheter connecting piece 4 is installed at the end of the pipeline, and an external negative pressure blood taking tube is connected, so that blood taking can be performed; after blood taking is completed, the catheter connecting piece 4 is removed, and the end of the pipeline is connected to an arteriovenous pipeline machine. The whole process can be operated by one person alone, the pipeline exposure time is short, the risk of pollution is reduced, the operation is convenient, and the work efficiency is improved.

[0025] The above only describes the preferred embodiment of the utility model patent, and does not limit the utility model patent, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model patent should be included in the protection range of the utility model patent.

Claims

1. A disposable needle for use in puncturing an internal arteriovenous fistula for blood sampling, characterized in that it comprises: The internal arteriovenous fistula puncture needle (1), pipeline (2), check valve (3) and catheter connector (4) are included; The internal arteriovenous fistula puncture needle (1) is installed at the front end of the pipeline (2), and a needle handle (11) is arranged on the internal arteriovenous fistula puncture needle (1); The check valve (3) is installed on the pipeline (2); The catheter connector (4) is installed at the end of the pipeline (2), and a protective sleeve is sleeved on the catheter connector (4).

2. The blood taking needle according to claim 1, wherein: The catheter connector (4) is detachable; the catheter connector (4) is used for connecting an external negative pressure blood collection tube.

3. The blood lancet according to claim 1, wherein: After the catheter connector (4) is detached, the end of the pipeline (2) is connected to an internal arteriovenous pipeline.

4. The blood taking needle according to claim 1, wherein: The end of the pipeline (2) is a circular truncated cone type interface, and a handle (21) is arranged outside the interface.

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