Blood return prevention venous indwelling needle

Abstract

The utility model relates to the technical field of venous indwelling needles, in particular to a blood return prevention venous indwelling needle which comprises a needle body, a needle holding handle, an extension tube, a Y-shaped connector and a flow controller, the needle holding handle is installed on the needle body, the tail end of the needle body is communicated with one end of the extension tube, and the other end of the extension tube is communicated with the Y-shaped connector. The flow controller is arranged on the extension pipe in a penetrating mode and located between the Y-shaped connector and the extension pipe. The blood return prevention venous indwelling needle has the blood return prevention capacity while keeping the capacity of a traditional venous indwelling needle.

Description

Technical Field

[0001] The utility model relates to the technical field of venous indwelling needles, in particular to an anti-blood-return venous indwelling needle. Background Art

[0002] The use of intravenous needles can reduce the pain caused by repeated intravenous punctures in children and their fear of injections, reduce the anxiety of parents, facilitate clinical medication, emergency medication for critically ill patients, reduce the workload of nurses, and reduce the pain of children. Therefore, intravenous needles are widely used in clinical practice. Facing this special group of children, the length of intravenous needle retention time and the comfort of children have become the most concerned issues for nurses and parents, and are also the signs of successful use of intravenous needles and the premise of promotion. The intravenous needle (Vein Detained Needle) is composed of a stainless steel core, a soft outer sleeve and a plastic needle seat. During puncture, the outer sleeve and the needle core are inserted into the blood vessel together. After the sleeve is sent into the blood vessel, the needle core is withdrawn, and only the soft outer sleeve is left in the blood vessel for infusion.

[0003] When using an intravenous catheter, generally only one connector is used for infusion, but when infusion is being given on one side, blood can easily flow back to the other side. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a blood-backproof venous indwelling needle, which has the ability of preventing blood backflow while retaining the capabilities of a traditional venous indwelling needle.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A venous indwelling needle to prevent blood backflow comprises a needle body, a needle holding handle, an extension tube, a Y-type connector and a flow controller. The needle holding handle is installed on the needle body, the end of the needle body is connected to one end of the extension tube, and the other end of the extension tube is connected to the Y-type connector. The flow controller is passed through the extension tube and is located between the Y-type connector and the extension tube.

[0007] Furthermore, the Y-shaped connector includes a first connector and a second connector.

[0008] Furthermore, the extension pipe includes a main extension pipe, a first auxiliary extension pipe and a second auxiliary extension pipe, and the first auxiliary extension pipe and the second auxiliary extension pipe are both connected to the main extension pipe.

[0009] Furthermore, the first joint is communicated with the first secondary extension pipe.

[0010] Furthermore, the second joint is communicated with the second secondary extension pipe.

[0011] Furthermore, the first extension tube and the second extension tube are both provided with a flow controller.

[0012] The beneficial effects of the utility model are as follows: in actual use, the liquid medicine enters the extension tube through the Y-type connector, the flow controller is used to control the flow of the extension tube, the flow can be fully closed or fully open, the liquid medicine enters the needle body through the extension tube, the needle body is pre-buried in the human vein, the liquid medicine enters the human vein through the needle body, the needle handle is used to facilitate the operation of the nursing staff, and at the same time, it is convenient to fix the needle body. The anti-blood backflow venous indwelling needle of the present application has the ability to prevent blood backflow while retaining the capabilities of the traditional venous indwelling needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Explanation of the reference numerals: needle body 1 , needle holding handle 2 , extension tube 3 , main extension tube 31 , first auxiliary extension tube 32 , second auxiliary extension tube 33 , Y-type connector 4 , first connector 41 , second connector 42 , flow controller 5 . DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0016] like Figure 1 As shown, the utility model provides an anti-backflow venous indwelling needle, which includes a needle body 1, a needle holding handle 2, an extension tube 3, a Y-type connector 4 and a flow controller 5. The needle holding handle 2 is installed on the needle body 1, the end of the needle body 1 is connected to one end of the extension tube 3, and the other end of the extension tube 3 is connected to the Y-type connector 4. The flow controller 5 is passed through the extension tube 3 and is located between the Y-type connector 4 and the extension tube 3.

[0017] During actual use, the medicine enters the extension tube 3 through the Y-type connector 4. The flow controller 5 is used to control the flow of the extension tube 3. The flow can be fully closed or fully open. The medicine enters the needle body 1 through the extension tube 3. By pre-burying the needle body 1 into the human vein, the medicine enters the human vein through the needle body 1. The needle handle 2 is used to facilitate the operation of the nursing staff and to facilitate the fixing of the needle body 1.

[0018] The anti-blood backflow venous indwelling needle of the present application has the ability to prevent blood backflow while retaining the capabilities of a traditional venous indwelling needle.

[0019] like Figure 1 As shown, in this embodiment, the Y-shaped connector 4 includes a first connector 41 and a second connector 42. In actual use, the first connector 41 and the second connector 42 can both provide infusion support.

[0020] like Figure 1As shown, in this embodiment, the extension tube 3 includes a main extension tube 31, a first auxiliary extension tube 32 and a second auxiliary extension tube 33, and the first auxiliary extension tube 32 and the second auxiliary extension tube 33 are both connected to the main extension tube 31. In actual use, the liquid medicine in the first auxiliary extension tube 32 and the second auxiliary extension tube 33 needs to enter the human body through the main extension tube 31 and the needle body 1.

[0021] like Figure 1 As shown, in this embodiment, the first connector 41 is connected to the first auxiliary extension tube 32. In actual use, the liquid medicine inputted from the first connector 41 enters the main extension tube 31 through the first auxiliary extension tube 32.

[0022] like Figure 1 As shown, in this embodiment, the second connector 42 is connected to the second auxiliary extension tube 33. In actual use, the liquid medicine input from the second connector 42 enters the main extension tube 31 through the second auxiliary extension tube 33.

[0023] like Figure 1 As shown, in this embodiment, the first auxiliary extension tube 32 and the second auxiliary extension tube 33 are both provided with a flow controller 5. In actual use, the flow controller 5 is used to control the flow of the first auxiliary extension tube 32 and the second auxiliary extension tube 33.

[0024] All technical features in this embodiment can be freely combined according to actual needs.

[0025] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A venous indwelling needle for preventing blood backflow, characterized in that: It includes a needle body, a needle holding handle, an extension tube, a Y-type connector and a flow controller. The needle holding handle is installed on the needle body. The end of the needle body is connected to one end of the extension tube, and the other end of the extension tube is connected to the Y-type connector. The flow controller is passed through the extension tube and is located between the Y-type connector and the extension tube.

2. The anti-blood backflow venous indwelling needle according to claim 1, characterized in that: The Y-shaped connector includes a first connector and a second connector.

3. The anti-blood backflow venous indwelling needle according to claim 2, characterized in that: The extension pipe comprises a main extension pipe, a first auxiliary extension pipe and a second auxiliary extension pipe, and the first auxiliary extension pipe and the second auxiliary extension pipe are both connected to the main extension pipe.

4. The anti-blood backflow venous indwelling needle according to claim 3, characterized in that: The first joint is communicated with the first secondary extension pipe.

5. The anti-blood backflow venous indwelling needle according to claim 3, characterized in that: The second joint is in communication with the second secondary extension pipe.

6. The anti-blood backflow venous indwelling needle according to claim 3, characterized in that: The first extension tube and the second extension tube are both provided with a flow controller.

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