Anti-bending structure of dosing tube

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an anti-bending structure of a dosing tube, which comprises a three-way valve and an extension tube, the extension tube is arranged at the top of the three-way valve, a threaded sleeve ring is sleeved below the outside of the extension tube, a threaded sleeve block is sleeved outside the threaded sleeve ring, and the threaded sleeve block is sleeved outside the three-way valve. And a universal joint pipe is arranged at the top of the threaded sleeve block and is in a hollow shape. According to the anti-bending structure of the dosing tube, due to the fact that the threaded sleeve ring is in threaded fit with the threaded sleeve block, the universal joint tube and the extension tube are fixed under the action of the threads, the universal joint tube is arranged and serves as a sterile article, the direction of the extension tube can be changed at will when medicine is conveyed, and under any condition, the anti-bending structure of the dosing tube has the advantages of being simple in structure and convenient to use. When the extension tube is bent and folded, the bent and folded tube can be restored through the elastic force effect of the supporting spring, so that medicine conveying is not affected, and the supporting spring and the universal joint tube in the extension tube are protected through the arrangement of the extension tube.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a drug delivery tube anti-bending structure. BACKGROUND

[0002] A drug delivery tube is a pipeline device for delivering drugs, usually made of soft materials such as plastic, etc., which has different sizes and shapes to adapt to different drug delivery sites and methods. The subcutaneous implantable drug delivery device is a medical device used in clinical for subcutaneous implantation of long-term drug delivery for patients. When the patient is treated, the drug delivery tube is used to deliver drugs to the patient's body for drug treatment.

[0003] At present, in the prior art:

[0004] The existing drug delivery tube is directly implanted into the patient's body through a three-way valve to deliver drugs to the patient's body. When the patient rests during the drug delivery process, the drug delivery tube will be bent and deformed due to the patient's unconscious movement during rest, affecting the delivery of drugs.

[0005] Therefore, a drug delivery tube anti-bending structure is proposed to solve the above problems. INVENTION CONTENTS

[0006] (I) Technical problems solved

[0007] In order to make up for the deficiencies of the prior art and solve the problems in the background art, a drug delivery tube anti-bending structure is proposed.

[0008] (II) Technical solutions

[0009] In order to achieve the above purpose, the utility model provides the following technical scheme: a drug delivery tube anti-bending structure, comprising a three-way valve and an extension tube, the top of the three-way valve is provided with an extension tube, the lower part outside the extension tube is sleeved with a threaded sleeve ring, the outside of the threaded sleeve ring is sleeved with a threaded sleeve block, the top of the threaded sleeve block is provided with a knot tube, the knot tube is hollow, the outside of the knot tube is sleeved with a supporting spring, and the outside of the supporting spring is sleeved with a telescopic tube.

[0010] Preferably, the three-way valve is in communication with the extension tube, the extension tube is fixedly connected with the threaded sleeve ring, the threaded sleeve ring is in threaded cooperation with the threaded sleeve block, the threaded sleeve block is fixedly connected with the knot tube, the knot tube is elastically connected with the telescopic tube through the supporting spring, and the telescopic tube is fixedly connected with the threaded sleeve block.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the present application provides a drug delivery tube anti-bending structure, which has the following beneficial effects:

[0013] The utility model provides a dosing pipe anti -bending structure, through due to the screw thread cover ring and screw thread cover block screw thread cooperation, under the action of screw thread makes the knotted pipe can be fixed with the extension pipe, through setting up the knotted pipe, the knotted pipe is the sterile article, makes the extension pipe can change its direction at will when carrying out the drug delivery, under any condition, the extension pipe is bent and is folded, through the elastic force effect of supporting spring, can make the pipeline that is bent and is folded restores, thereby will not influence the drug delivery, sets up the telescopic pipe and protects the supporting spring and the knotted pipe in the inside, can keep preventing the extension pipe and can guarantee the liquid medicine smooth input. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and serve to explain the utility model together with the detailed description, do not constitute improper limitation to the utility model. In the drawings:

[0015] Figure 1 It is the perspective view of the utility model;

[0016] Figure 2 It is the structure diagram of telescopic pipe inside of the utility model;

[0017] Figure 3 It is the structure diagram of screw thread cover ring inside of the utility model.

[0018] Legend:

[0019] 1, three -way valve;2, extension pipe;3, screw thread cover ring;4, screw thread cover block;5, knotted pipe;6, supporting spring;7, telescopic pipe. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment only is a part of the embodiment of the utility model, is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making the creative labor belong to the range of protection of the utility model.

[0021] The specific embodiment is given below.

[0022] Please refer to Figure 1The utility model provides a dosing pipe anti -bending structure, including three -way valve 1 and extension pipe 2, the top of three -way valve 1 is provided with extension pipe 2, and the below of extension pipe 2 outside is equipped with threaded collar 3, and the outside of threaded collar 3 is equipped with threaded sleeve block 4, and the top of threaded sleeve block 4 is provided with the knot pipe 5, and the knot pipe 5 is hollow, and the outside of knot pipe 5 is equipped with support spring 6, and the outside of support spring 6 is equipped with telescopic pipe 7, three -way valve 1 communicates with extension pipe 2, and extension pipe 2 is fixedly connected with threaded collar 3, and threaded collar 3 is screwed with threaded sleeve block 4, and threaded sleeve block 4 is fixedly connected with knot pipe 5, and knot pipe 5 is elastically connected with telescopic pipe 7 through support spring 6, and telescopic pipe 7 is fixedly connected with threaded sleeve block 4.

[0023] When working, the threaded collar 3 is screwed with the threaded sleeve block 4, and the knot pipe 5 is fixed with the extension pipe 2 under the action of the thread, the knot pipe 5 is set, the knot pipe 5 is a sterile product, the direction of the extension pipe 2 can be changed at will when the extension pipe 2 is used for drug delivery, in any case, the curved and folded pipeline can be restored through the elastic force of the support spring 6 when the extension pipe 2 is curved and folded, so that the drug delivery is not affected, and the telescopic pipe 7 is set to protect the support spring 6 and the knot pipe 5 inside.

[0024] Working principle:

[0025] When working, the threaded collar 3 is screwed with the threaded sleeve block 4, and the knot pipe 5 is fixed with the extension pipe 2 under the action of the thread, the knot pipe 5 is set, the knot pipe 5 is a sterile product, the direction of the extension pipe 2 can be changed at will when the extension pipe 2 is used for drug delivery, in any case, the curved and folded pipeline can be restored through the elastic force of the support spring 6 when the extension pipe 2 is curved and folded, so that the drug delivery is not affected, and the telescopic pipe 7 is set to protect the support spring 6 and the knot pipe 5 inside.

[0026] The basic principle, main characteristics and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A kink-proof structure for a drug delivery tube comprising a three-way valve (1) and an extension tube (2), characterized in that: The top of the three-way valve (1) is provided with an extension pipe (2), the lower part outside the extension pipe (2) is sleeved with a threaded sleeve ring (3), the outside of the threaded sleeve ring (3) is sleeved with a threaded sleeve block (4), the top of the threaded sleeve block (4) is provided with a bowden cable (5), the bowden cable (5) is hollow, the outside of the bowden cable (5) is sleeved with a supporting spring (6), and the outside of the supporting spring (6) is sleeved with a telescopic pipe (7).

2. A bend-prevention structure for a drug delivery tube according to claim 1, wherein: The three-way valve (1) is communicated with the extension pipe (2), the extension pipe (2) is fixedly connected with the threaded sleeve ring (3), the threaded sleeve ring (3) is threadedly matched with the threaded sleeve block (4), the threaded sleeve block (4) is fixedly connected with the bowden cable (5), the bowden cable (5) is elastically connected with the telescopic pipe (7) through the supporting spring (6), and the telescopic pipe (7) is fixedly connected with the threaded sleeve block (4).

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