CN213667274U

CN213667274U - Infusion filter connection structure

Info

Publication number: CN213667274U
Application number: CN202021244098.2U
Authority: CN
Inventors: 王淼; 金桂仙; 李彩红; 张丽霞; 胥泽红; 张元春; 何雨娟
Original assignee: Second Affiliated Hospital of Kunming Medical University
Current assignee: Second Affiliated Hospital of Kunming Medical University
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-07-13
Anticipated expiration: 2030-06-30

Abstract

The utility model designs a transfusion filter connecting structure, which comprises a transfusion filter and a transfusion needle connector; the lower end of the infusion filter is provided with a lower connecting pipe, the tail end of the lower connecting pipe is provided with a thread section, and the edge of the lower connecting pipe is chamfered; transfusion needle connector includes screw hole, rubber circle and handheld piece, and the screw thread in the screw hole can agree with each other with the terminal screw thread of connecting pipe down, the rubber circle is installed in the screw hole exit, and with screw hole export parallel and level, the infusion filter carries out threaded connection through the screw hole of connecting pipe and transfusion needle connector down. The utility model provides a liquid medicine splash the problem of polluting clothing and environment everywhere when traditional plug is connected, the medial surface is little protruding rubber circle, guarantees the gas tightness of connection process, improves the infusion security. The edge of the tail end of the lower connecting pipe is chamfered, the problem that air is brought into by bubbles easily generated during hole position alignment operation is solved, and meanwhile, the problem that plastic fines are generated due to the fact that the existing plain end design is prone to friction is solved.

Description

Infusion filter connection structure

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to infusion filter connection structure.

Background

Infusion filter is the indispensable device on the transfer line, impurity and bubble in the liquid medicine can be filtered, also be the connection port of transfer line and transfusion needle, infusion filter inserts through the connecting portion of lower extreme and transfusion needle connector at present and closes the connection, medical personnel need extract during the infusion in the connecting portion exhaust air of infusion filter inserts back transfusion needle connector again, but the plug process is difficult to the control dynamics, the connecting portion of extracting infusion filter often makes the liquid medicine splash everywhere often, pollute clothing and environment, consequently, need improve current infusion filter connection structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, designed a transfusion filter connection structure.

In order to solve the above technical problem and achieve the above technical effect, the utility model discloses a following technical content realizes:

a transfusion filter connecting structure comprises a transfusion filter and a transfusion needle connector; the transfusion filter comprises a filter valve and an upper connecting pipe and a lower connecting pipe which are arranged at the upper end and the lower end of the filter valve, and the tail end of the lower connecting pipe is provided with a thread section; the transfusion needle connector comprises a threaded hole, a rubber ring and a handheld piece, threads in the threaded hole can be matched with threads at the tail end of the lower connecting pipe, the rubber ring is installed at the outlet of the threaded hole and is flush with the outlet of the threaded hole, the diameter of the rubber ring is the same as that of the threaded hole, and the handheld piece is arranged at the tail end of the transfusion needle connector; the infusion filter is in threaded connection with a threaded hole of the infusion needle connector through the lower connecting pipe.

Furthermore, the inner side surface of the rubber ring slightly protrudes by 1-2mm and is made of wear-resistant rubber.

Further, the edge of the tail end of the lower connecting pipe is designed to be an arc-shaped chamfer.

The utility model has the advantages that:

(1) the utility model adopts the threaded connection of the transfusion filter and the transfusion needle joint, and solves the problem that the traditional plugging connection liquid medicine splashes to pollute clothes and environment.

(2) The utility model discloses increased the leakproofness of infusion filter and transfusion needle connector, the medial surface that sets up in the screw hole exit of transfusion needle connector is the rubber circle of little protruding, guarantees the gas tightness of connection process, can block the liquid medicine that the connecting pipe was taken out of the in-process mouth of pipe of screwing out under some infusion filter and the air bubble of screw in-process pipe wall adhesion, improves the infusion security.

(3) The utility model discloses to carry out the chamfer at connecting pipe terminal edge down, it is more convenient to compare with current flat mouthful of design and make the connection process, need not carry on repeatedly down the hole site of connecting pipe and screw hole aligns, easily produces the bubble when solving the hole site and aligns the operation and brings the problem into the air, has also avoided the sharp easy friction in current flat mouthful of design edge to produce the problem of plastics fines simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of an integrated connection structure of an infusion filter;

FIG. 2 is a schematic view of an infusion filter construction;

FIG. 3 is a schematic view of the structure of the connector of the infusion needle;

fig. 4 is a schematic diagram of a rubber ring structure.

In the drawings, the components represented by the respective reference numerals are listed below:

1-transfusion filter, 11-filter valve, 12-upper connecting pipe, 13-lower connecting pipe, 2-transfusion needle connector, 21-threaded hole, 22-rubber ring and 23-hand-held piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 4, an infusion filter connection structure includes an infusion filter 1 and an infusion needle connector 2; the infusion filter 1 comprises a filter valve 11, an upper connecting pipe 12 arranged at the upper end of the filter valve 11 and a lower connecting pipe 13 arranged at the lower end of the filter valve, wherein the upper connecting pipe 12 is connected with an infusion pipe, the tail end of the lower connecting pipe 13 is provided with a thread section 131, and the edge of the tail end of the lower connecting pipe is designed into an arc chamfer, so that the process of screwing the lower connecting pipe into a threaded hole is smoother, and the problem that air enters a pipeline easily when vacancy alignment needs to be repeatedly performed in the original flat-end design is solved; the transfusion needle connector 2 comprises a threaded hole 21, a rubber ring 22 and a handheld piece 23, threads in the threaded hole 21 and threads at the tail end of the lower connecting pipe 13 can be matched with each other, the rubber ring 22 is installed at the outlet of the threaded hole 21 and is flush with the outlet of the threaded hole 21, the diameter of the rubber ring is the same as that of the threaded hole 21, the rubber ring has a sealing effect, the inner side surface of the rubber ring 22 slightly protrudes inwards by 1-2mm, the rubber ring is made of wear-resistant rubber, the air tightness is improved, a part of liquid medicine taken out when the rubber ring is screwed out and air taken in when the rubber ring is screwed in can be separated, a certain damping effect can be achieved in the rotating process, the wear-resistant rubber material has high-strength toughness, no scraps are generated when the lower connecting pipe 13 is screwed in, the safety of transfusion is guaranteed, and the handheld piece 23; the transfusion filter 1 is in threaded connection with a threaded hole 21 of the transfusion needle connector 2 through a lower connecting pipe 13.

The utility model discloses concrete application during the use does:

invert infusion filter 1 during the use, will connect pipe 13 to unscrew the screw hole 21 of infusion needle connector 2 down and carry out the evacuation operation, and the purpose of inversion makes the liquid medicine can not flow, and the process of unscrewing does not need control dynamics and angle, can not make the medicine in the infusion filter 1 splash, will connect pipe 13 screw in infusion needle connector 2's screw hole 21 in the back will be down after the evacuation is accomplished, and the leakproofness of rotatory in-process connection has been guaranteed to rubber ring 22. The utility model provides a liquid medicine splash the problem of polluting clothing and environment everywhere when traditional plug is connected, screw hole 21 exit sets up the gas tightness that the connection process can be guaranteed to the little protruding rubber circle 22 of medial surface, can block the liquid medicine that connecting pipe 13 screwed out the in-process mouth of pipe and taken out under some infusion filter 1, can reduce the bubble of connecting pipe 13 screw in-process pipe wall adhesion down, and the chamfer makes things convenient for the screw in operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an infusion filter connection structure, includes the connection structure main part, its characterized in that: the connecting structure comprises an infusion filter and an infusion needle connector; the transfusion filter comprises a filter valve and an upper connecting pipe and a lower connecting pipe which are arranged at the upper end and the lower end of the filter valve, and the tail end of the lower connecting pipe is provided with a thread section; the transfusion needle connector comprises a threaded hole, a rubber ring and a handheld piece, threads in the threaded hole can be matched with threads at the tail end of the lower connecting pipe, the rubber ring is installed at the outlet of the threaded hole and is flush with the outlet of the threaded hole, the diameter of the rubber ring is the same as that of the threaded hole, and the handheld piece is arranged at the tail end of the transfusion needle connector; the infusion filter is in threaded connection with a threaded hole of the infusion needle connector through the lower connecting pipe.

2. The infusion filter connection structure according to claim 1, wherein: the inner side surface of the rubber ring slightly protrudes 1-2 mm.

3. The infusion filter connection structure according to claim 1, wherein: the edge of the tail end of the lower connecting pipe is designed to be an arc-shaped chamfer.