Improved remaining needle for dialysis

Abstract

The utility model discloses an improved dialysis indwelling needle which comprises an indwelling needle body and a connecting short tube, a connector is arranged at the tail end of the indwelling needle body, and the indwelling needle body is detachably connected with the connecting short tube in a sealed mode through the connector. A clip is arranged on the connecting short tube, and an injector connector is arranged at the tail end of the connecting short tube. When a nurse uses the indwelling needle for hemodialysis, the indwelling needle can assist the nurse in judging whether the indwelling needle is successfully punctured or not, meanwhile, the nurse is effectively helped to judge whether blood return is smooth or not, and an effective blood flow judgment basis is provided for hemodialysis. The indwelling needle for dialysis can effectively improve the puncture success rate when a nurse uses the indwelling needle for dialysis, avoids damage to blood vessels of a patient caused by repeated puncture, relieves pain of the patient, can also greatly reduce use of consumables, and avoids waste.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an improved indwelling needle for dialysis. Background Art

[0002] The dialysis indwelling needles currently used clinically have the following usage defects: 1. The cannula needle returns blood slowly after entering the blood vessel, affecting the nurse's judgment on whether the puncture is successful; 2. When the nurse fails to puncture once, the blood return part is already full of blood, and it is impossible to determine whether the puncture is successful when adjusting the needle; 3. After a successful puncture, it is impossible to judge whether the blood return is smooth.

[0003] Therefore, it is necessary to improve the existing technology so that it has better use effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems and provide an improved dialysis indwelling needle. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An improved indwelling needle for dialysis comprises an indwelling needle body and a connecting short tube, wherein a connector is provided at the end of the indwelling needle body and is detachably and hermetically connected to the connecting short tube via the connector;

[0006] The connecting short tube is provided with a clip, and the end of the connecting short tube is provided with a syringe connecting head.

[0007] As an improvement, two branch tubes are provided at the end of the connecting short tube, each of the branch tubes is provided with a clip, and each of the branch tubes is provided with a syringe connector at the end.

[0008] As an improvement, the indwelling needle body includes, from the front end to the rear end, in sequence: a catheter, a catheter seat, a clamping tube, a Luer connector, a Luer cover, an inner needle seat, a blood return portion and a connector.

[0009] As an improvement, an anti-needle puncture protection device is provided in the inner needle seat.

[0010] As an improvement, a hemostatic plug is provided in the connector.

[0011] The advantages of the utility model are:

[0012] 1. The utility model can assist nurses in judging whether the puncture of the indwelling needle is successful when the nurses use the indwelling needle for dialysis, and can also effectively help nurses judge whether the blood return is unobstructed, thereby providing an effective basis for judging blood flow in hemodialysis.

[0013] 2. The utility model can effectively improve the puncture success rate of nurses when using dialysis indwelling needles, avoid damage to patients' blood vessels caused by repeated punctures, alleviate patients' pain, and also significantly reduce the use of consumables and avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of an improved dialysis indwelling needle in Example 1.

[0015] Figure 2 This is a reference diagram of the usage status of an improved dialysis indwelling needle in Example 1.

[0016] Figure 3 This is a structural diagram of an improved dialysis indwelling needle in Example 2.

[0017] Indicated in the figure:

[0018] 1-indwelling needle body, 11-connector, 12-catheter, 121-needle tip, 13-catheter seat, 14-clamping tube, 15-Luer connector, 16-Luer cover, 17-inner needle seat, 18-blood return part, 2-connecting short tube, 21-branch tube, 3-clamp, 4-syringe connector. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, they can be fixedly connected or can be connected in a fixed manner.

[0024] The connection may be detachable or integral; it may be mechanical or electrical; it may be directly connected or indirectly connected through an intermediate medium, or it may be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] Example 1

[0026] This embodiment discloses an improved indwelling needle for dialysis, comprising an indwelling needle body 1 and a connecting short tube 2. A connector 11 is provided at the end of the indwelling needle body 1, and is detachably and hermetically connected to the connecting short tube 2 via the connector 11.

[0027] The indwelling needle body 1 includes, from the front end to the rear end, a catheter 12 , a catheter seat 13 , a clamping tube 14 , a Luer connector 15 , a Luer cover 16 , an inner needle seat 17 , a blood return portion 18 and a connector 11 .

[0028] The front end of the catheter 12 is provided with a needle tip 121, and an anti-needle puncture protection device is provided in the inner needle seat 17. A hemostatic plug is provided in the connector 11.

[0029] A clamp 3 is provided on the connecting short tube 2 , and a syringe connector 4 is provided at the end of the connecting short tube 2 .

[0030] When in use, the embodiment is connected to the syringe via the syringe connector 4; during the puncture process, there is more space inside the device, which facilitates rapid blood return after the catheter 12 punctures the blood vessel, helping the nurse to quickly determine whether the puncture is successful.

[0031] If the first puncture fails, the blood inside the indwelling needle body can be drawn out by a syringe to prevent the blood inside the indwelling needle body 1 from affecting the judgment during the second puncture.

[0032] Example 2

[0033] This embodiment discloses an improved indwelling needle for dialysis, comprising an indwelling needle body 1 and a connecting short tube 2. A connector 11 is provided at the end of the indwelling needle body 1, and is detachably and hermetically connected to the connecting short tube 2 via the connector 11.

[0034] The indwelling needle body 1 includes, from the front end to the rear end, a catheter 12 , a catheter seat 13 , a clamping tube 14 , a Luer connector 15 , a Luer cover 16 , an inner needle seat 17 , a blood return portion 18 and a connector 11 .

[0035] The front end of the catheter 12 is provided with a needle tip 121, and an anti-needle puncture protection device is provided in the inner needle seat 17. A hemostatic plug is provided in the connector 11.

[0036] In this embodiment, two branch tubes 21 are provided at the end of the connecting short tube 2 , each branch tube 21 is provided with a clamp 3 , and each branch tube 21 is provided with a syringe connector 4 at the end.

[0037] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modification and substitution of the present invention is also within the scope of the present invention. Therefore, the equivalent transformation and modification made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. An improved dialysis indwelling needle, characterized in that: It comprises an indwelling needle body and a connecting short tube, wherein a connector is provided at the end of the indwelling needle body and is detachably and hermetically connected to the connecting short tube through the connector; The connecting short tube is provided with a clip, and the end of the connecting short tube is provided with a syringe connecting head.

2. The improved dialysis indwelling needle according to claim 1, characterized in that: Two branch pipes are arranged at the end of the connecting short pipe, each of the branch pipes is provided with a clip, and each of the branch pipes is provided with a syringe connector at the end.

3. The improved dialysis indwelling needle according to claim 1, characterized in that: The indwelling needle body comprises, from the front end to the rear end, a catheter, a catheter seat, a clamping tube, a Luer connector, a Luer cover, an inner needle seat, a blood return portion and a connector.

4. The improved dialysis indwelling needle according to claim 3, characterized in that: An anti-needle puncture protection device is arranged inside the inner needle seat.

5. The improved dialysis indwelling needle according to claim 3, characterized in that: A hemostatic plug is arranged in the connector.

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