Non-invasive needle for infusion port

Abstract

The utility model relates to the technical field of medical instruments, in particular to a non-injury needle for an infusion port, which comprises a puncture needle, a plurality of needle holes are arranged at one end of the puncture needle far away from a needle handle, and the needle holes are arranged around the puncture needle. During tube sealing, tube sealing liquid can flush the liquid storage groove of the injection seat from multiple directions through the needle holes of the infusion port non-injury needle, a puncture needle does not need to be rotated, the operation time of a nurse is shortened, pain of a patient is reduced, meanwhile, the tube sealing effect is improved, and the tube blocking probability is reduced; complications such as thrombosis and catheter-related blood flow infection are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a non-damaging needle for an infusion port. Background Art

[0002] An infusion port is a completely implantable closed infusion device in the human body, including a catheter part with a tip located in the superior vena cava and an injection seat implanted subcutaneously. Since it is applicable to highly concentrated and highly irritating liquid medicines and can be indwelled in the body for a long time, it is widely used in clinical practice. When in use, only need to pierce a non-damaging needle dedicated to the infusion port into the injection base, and then connect the infusion set to facilitate infusion. After the infusion is completed, flush the periphery of the injection base and the catheter with a sealing liquid to ensure the patency of the pipeline and avoid the residue of the liquid medicine. The existing non-damaging needles for infusion ports usually have a single liquid outlet hole on one side of the needle tip bevel. Clinically, when sealing the tube, the non-damaging needle is usually rotated to adjust the liquid outlet hole of the puncture needle to face away from the catheter locking interface of the injection base (180°) so as to wash away the residual liquid medicine and blood in the storage tank of the injection base and improve the flushing effect. However, since both the injection base and the puncture needle are in the body, it is impossible to observe the position of the puncture needle hole with the naked eye, and rotating the needle handle also brings discomfort to the patient and inconvenience to the nurse's operation. Summary of the Utility Model

[0003] In order to improve the above problems, the present application provides a non-damaging needle for an infusion port that does not need to be rotated.

[0004] The non-damaging needle for an infusion port provided by the present application adopts the following technical solutions:

[0005] A non-damaging needle for an infusion port includes a puncture needle. A plurality of needle holes are provided at one end of the puncture needle away from the needle handle, and the plurality of needle holes are arranged around the puncture needle. The liquid medicine is output from multiple directions, so that it is not necessary to rotate the puncture needle.

[0006] Further, the tip of the puncture needle is in an arc-shaped barb shape, which helps to avoid damaging the injection base.

[0007] Further, the setting range of the needle holes is 1 / 5 - 1 / 4 of the length of the puncture needle, which helps to avoid the leakage of part of the liquid medicine under the skin when the puncture needle is not completely inserted into the injection base.

[0008] Further, the plurality of needle holes are of the same size, which helps to make the flow rate of the liquid medicine in each direction approximately the same, so that each direction of the storage tank of the injection base can be effectively flushed.

[0009] Further, the needle handle of the puncture needle is in a butterfly wing shape, which is convenient for piercing the puncture needle into the injection base.

[0010] Further, the puncture needle is connected with an infusion tube, and a stop clamp is arranged in the middle section of the infusion tube for controlling the on-off of the infusion.

[0011] Further, an infusion connector is provided at one end of the infusion tube away from the puncture needle.

[0012] Further, the puncture needle is made of medical stainless steel.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] When flushing the tube, the flushing liquid can wash the liquid storage tank of the injection port from multiple directions through multiple needle holes of the non-damaging needle of the infusion port, without the need to rotate the puncture needle, shortening the operation time of the nurse, reducing the pain of the patient, improving the tube flushing effect at the same time, reducing the probability of pipeline blockage, and reducing the occurrence of complications such as thrombus formation and catheter-related bloodstream infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0016] Figure 2 is a front view of the puncture needle of an embodiment of the present application;

[0017] Figure 3 is a side view of the puncture needle of an embodiment of the present application.

[0018] Reference numerals: 1, puncture needle; 2, needle handle; 3, stop clamp; 4, infusion tube; 5, infusion connector; 6, needle hole; 7, protective sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the present application in detail Figures 1-3 with reference to the accompanying drawings.

[0020] An embodiment of the present application discloses a non-damaging needle for an infusion port. Referring to Figure 1 、 Figure 2 , it includes a puncture needle 1. A plurality of needle holes 6 are provided at one end of the puncture needle 1 away from the needle handle 2. The plurality of needle holes 6 are arranged around the puncture needle 1, and the liquid medicine is output from multiple directions, so that it is not necessary to rotate the puncture needle 1. A protective sleeve 7 is provided on the puncture needle 1, which helps to prevent the needle tip from being contaminated and avoid medical staff from being pricked by the needle. The needle holes 6 can be processed by laser drilling.

[0021] Referring to Figure 1 、 Figure 2 、 Figure 3 , the tip of the puncture needle 1 is arc-shaped and barbed, which helps to avoid damaging the injection base.

[0022] Referring to Figure 1 、 Figure 2 、 Figure 3, the setting range of the pinhole 6 is 1 / 5 - 1 / 4 of the length of the puncture needle 1, which helps to avoid leakage of a part of the liquid medicine under the skin when the puncture needle 1 is not fully inserted into the injection base.

[0023] Reference Figure 2 、 Figure 3 , the sizes of the pinholes 6 are the same, which helps the liquid medicine to have roughly the same flow rate in all directions, so that all directions of the liquid storage tank of the injection base can be effectively flushed.

[0024] Reference Figure 1 , the needle handle 2 of the puncture needle 1 is in a butterfly shape, which helps to insert the puncture needle 1 into the injection base.

[0025] Reference Figure 1 , the puncture needle 1 is connected with an infusion tube 4, and a stop clamp 3 is arranged in the middle section of the infusion tube to control the on-off of the infusion.

[0026] Reference Figure 1 , one end of the infusion tube 4 far away from the puncture needle 1 is provided with an infusion connector 5.

[0027] Reference Figure 1 , the puncture needle 1 is made of medical stainless steel.

[0028] When the utility model seals the tube, the sealing liquid can flush the liquid storage tank of the injection base from multiple directions through the multiple pinholes 6 of the non-invasive needle of the infusion port, without the need to rotate the puncture needle 1, shortening the operation time of nurses, reducing the pain of patients, improving the tube sealing effect at the same time, reducing the probability of pipeline blockage, and reducing the occurrence of complications such as thrombus formation and catheter-related bloodstream infection.

[0029] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A non-invasive needle for an infusion port, characterized in that: It includes a puncture needle, and a plurality of needle holes are provided at one end of the puncture needle away from the needle handle, and the plurality of needle holes are arranged around the puncture needle.

2. The non-invasive needle for an infusion port according to claim 1, wherein: The tip of the puncture needle is in an arc-shaped barb shape.

3. The non-invasive needle for an infusion port according to claim 1, wherein: The setting range of the needle holes is 1 / 5 - 1 / 4 of the length of the puncture needle.

4. The non-invasive needle for an infusion port according to claim 1, wherein: The sizes of the needle holes are the same.

5. The non-invasive needle for an infusion port according to claim 1, characterized in that: The needle handle of the puncture needle is in a butterfly wing shape.

6. The non-invasive needle for an infusion port according to claim 1, characterized in that: The puncture needle is connected with an infusion tube, and a stop clamp is arranged in the middle section of the infusion tube.

7. The non-invasive needle for an infusion port according to claim 6, wherein: One end of the infusion tube away from the puncture needle is provided with an infusion connector.

8. The non-invasive needle for an infusion port according to claim 1, characterized in that: The puncture needle is made of medical stainless steel.

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