CN212141070U

CN212141070U - Transfusion port needle

Info

Publication number: CN212141070U
Application number: CN201820037708.8U
Authority: CN
Inventors: 李璐
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2020-12-15
Anticipated expiration: 2028-01-10

Abstract

An infusion port needle, comprising: steel needles and plastic tubing needles; the upper end of the plastic tube needle is communicated with the infusion catheter; the cross section of the steel needle is C-shaped, and the steel needle can be detachably buckled on the periphery of the plastic tube needle; the lower end of the steel needle extends beyond the lower end of the plastic tube needle; the upper end of the steel needle extends beyond the upper end of the plastic tube needle. The needle of the transfusion port needle is divided into the steel needle in charge of puncture and the plastic tube needle in charge of transfusion, the steel needle can be pulled out after the puncture task is completed, and only the plastic tube needle is left, so that a user can conveniently carry out nuclear magnetic examination without being influenced.

Description

Transfusion port needle

Technical Field

The utility model relates to a medical instrument especially relates to an infusion port needle.

Background

A needle for an infusion port seat is also called an infusion port needle or a non-invasive needle. At present, the structure of the atraumatic needle is shown in figures 7 and 8, and the needle head is a steel needle. Thus, patients with needles cannot undergo a nuclear magnetic examination.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention aims to provide an infusion port needle, which is free of a steel needle during infusion and facilitates nuclear magnetic examination.

The utility model discloses an infusion port needle, it includes: steel needles and plastic tubing needles;

the upper end of the plastic tube needle is communicated with the infusion catheter;

the cross section of the steel needle is C-shaped, and the steel needle can be detachably buckled on the periphery of the plastic tube needle; the lower end of the steel needle extends beyond the lower end of the plastic tube needle; the upper end of the steel needle extends beyond the upper end of the plastic tube needle.

Preferably, the upper end of the steel needle is provided with a handle.

Preferably, the infusion tube is formed with a pressing plate.

Preferably, the circumferential angle of the C-shaped cross section of the steel needle is an angle greater than 180 ° and less than 270 °.

The needle of the transfusion port needle is divided into the steel needle in charge of puncture and the plastic tube needle in charge of transfusion, the steel needle can be pulled out after the puncture task is completed, and only the plastic tube needle is left, so that a user can conveniently carry out nuclear magnetic examination without being influenced.

Drawings

FIG. 1 is a schematic front view of the cross-sectional structure of the transfusion port needle of the present invention;

FIG. 2 is a schematic top view of the cross-sectional structure of the transfusion port needle of the present invention;

FIG. 3 is a schematic view of the structure of the transfusion port needle after the steel needle is removed during transfusion;

FIG. 4 is a schematic view of the top view of the transfusion port needle with the steel needle removed during transfusion;

FIG. 5 is a left side view of the steel needle of the transfusion port needle of the present invention;

FIG. 6 is a right side view of the steel needle of the transfusion port needle of the present invention;

FIG. 7 is a schematic front view of a prior art port needle;

FIG. 8 is a side view of a prior art port needle.

Detailed Description

The following describes the infusion port needle of the present invention in detail with reference to the accompanying drawings.

The utility model discloses a main thinking of infusion port needle is that the steel needle that will originally not only be responsible for the puncture but also be responsible for the infusion divide into the C shape steel needle that only is responsible for the puncture and the plastics pipe needle that only is responsible for the infusion, just pulls out the steel needle after the puncture, only leaves the plastics pipe needle, consequently the patient can take it to infuse while carrying out nuclear magnetic inspection.

The utility model discloses an infusion port needle, it includes: a steel needle 12 and a plastic cannula 11.

The upper end of the plastic tube needle 11 is communicated with an infusion catheter 15.

The cross section of the steel needle 12 is C-shaped, and the steel needle 12 can be detachably buckled on the periphery of the plastic tube needle 11; the circumferential angle of the C-shaped cross section of the steel needle 12 is an angle greater than 180 ° and less than 270 °. The lower end of the steel needle 12 extends beyond the lower end of the plastic tube needle 11; the upper end of the steel needle 12 extends beyond the upper end of the plastic cannula 11.

The upper end of the steel needle 12 may also be provided with a handle 13 to facilitate puncturing and removal of the steel needle.

The infusion tube 13 may be formed with a pressing plate 14 through which a needle is pressed when being removed. The pressing plate 14 may be rotatably attached to the infusion tube 15, or may be integrally fixed to the infusion tube 15.

When puncturing, an operator holds the handle of the steel needle to puncture, and the steel needle and the plastic tube needle surrounded by the steel needle are punctured into the transfusion port seat together; after the puncture is completed, the operator tightly pinches the handle with one hand, presses the pressing plate with the other hand, and cooperatively pulls out the steel needle with both hands, thereby tightly holding the plastic cannula in the infusion port seat.

Claims

1. An infusion port needle, comprising: steel needles and plastic tubing needles;

the cross section of the steel needle is C-shaped, and the steel needle can be detachably buckled on the periphery of the plastic tube needle; the lower end of the steel needle extends beyond the lower end of the plastic tube needle; the upper end of the steel needle extends beyond the upper end of the plastic tube needle;

the circumferential angle of the C-shaped cross section of the steel needle is an angle larger than 180 degrees and smaller than 270 degrees.

2. The port infusion needle of claim 1, wherein:

the upper end of the steel needle is provided with a handle.

3. The port infusion needle of claim 1, wherein:

the infusion catheter is provided with a pressing plate.