CN212547953U

CN212547953U - Plug-and-play three-way pipe

Info

Publication number: CN212547953U
Application number: CN202020453926.7U
Authority: CN
Inventors: 冯丹; 谭洁; 王娟
Original assignee: Peoples Hospital of Deyang City
Current assignee: Peoples Hospital of Deyang City
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-02-19
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a plug-and-play three-way pipe, which is used in cooperation with a needle tube provided with a positioning piece; the three-way pipe comprises a converter piece and a sealing piece; the converter piece is connected with a first branch pipe, a second branch pipe and a third branch pipe in a penetrating way; the sealing element comprises a plugging piece, a connecting piece and a sliding piece, the plugging piece is positioned in the converter element and used for plugging the third branch pipe, the connecting piece is fixedly connected with the plugging piece and the sliding piece, the sliding piece is positioned in the third branch pipe, and the sliding piece is connected with the inner wall of the third branch pipe in a sliding and sealing manner; the sliding part is provided with a through hole along the flowing direction of the third branch pipe, the inner wall of the third branch pipe is provided with a stop block, the stop block is positioned between the plugging part and the sliding part, and a compression spring is arranged between the stop block and the sliding part; the inner wall of the third branch pipe is provided with a curve groove used for matching with the positioning piece, the curve groove is positioned at one end, away from the sealing piece, of the third branch pipe, the tail end of each curve groove is provided with a fixing groove, and the opening of each fixing groove is arranged towards the outer end of the third branch pipe.

Description

Plug-and-play three-way pipe

Technical Field

The utility model relates to a medical auxiliary assembly field particularly, relates to a plug-and-play's three-way pipe.

Background

In everyday medical care tasks, it is sometimes necessary for medical personnel to inject the liquid to be added into the tube being infused, such as: currently, when a neurostimulator is clinically used, ultrasound positioning ambiguity can be encountered, and in this time, physiological saline needs to be injected for positioning. The needle tube filled with the liquid medicine needs to be taken down, and then the needle tube filled with the normal saline is filled, so that the operation is complex and inconvenient.

Chinese patent that application number is CN201820258299.4, it discloses a medical three-way pipe and nerve stimulation appearance, thereby slide in the guide slot through support piece and drive the shutoff subassembly and carry out the shutoff to first pillar, overall structure is comparatively complicated, and the leakproofness is not good, and the guide slot is sealed by the sealing member completely, but the sliding of connecting piece is born again to the sealing member, must lead to the leakproofness relatively poor, in addition through interference fit's mode, can cause the degree of difficulty that medical personnel inserted and get.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plug-and-play's three-way pipe solves the above-mentioned problem that medical three-way pipe exists among the prior art.

The utility model discloses a realize like this: a plug-and-play three-way pipe is used in cooperation with a needle tube, and positioning pieces are symmetrically arranged at the end part of the needle tube; the three-way pipe comprises a converter piece and a sealing piece; the converter piece is connected with a first branch pipe in a penetrating way; the converter piece is connected with a second branch pipe in a through manner; a third branch pipe is connected on the converter piece in a penetrating way; the sealing element comprises a plugging piece, a connecting piece and a sliding piece, the plugging piece is positioned in the converter element and used for plugging the third branch pipe, the connecting piece is fixedly connected with the plugging piece and the sliding piece, the sliding piece is positioned in the third branch pipe, and the sliding piece is connected with the inner wall of the third branch pipe in a sliding and sealing manner; the sliding part is provided with a through hole along the flowing direction of the third branch pipe, the inner wall of the third branch pipe is provided with a stop block, the stop block is positioned between the plugging part and the sliding part, and a compression spring is arranged between the stop block and the sliding part; the inner wall of the third branch pipe is provided with a curve groove used for matching with the positioning piece, the curve groove is positioned at one end, away from the sealing piece, of the third branch pipe, the tail end of each curve groove is provided with a fixing groove, and the opening of each fixing groove is arranged towards the outer end of the third branch pipe.

Furthermore, a sealing ring is arranged on the sliding part and used for abutting against the needle tube.

Furthermore, the sealing device also comprises a sealing cover which is detachably connected with the end part of the third branch pipe and is used for sealing the third branch pipe.

The converter is characterized by further comprising a pressure pipe, wherein one end of the pressure pipe is connected to the joint of the converter and the third branch pipe in a penetrating manner, a standard part is arranged in the pressure pipe, and the standard part is connected to the inside of the pressure pipe in a sliding and sealing manner; the pressure pipe is provided with scale marks.

Further, the converter piece is of a ball shape.

Further, the plugging piece is a semi-circle body or a sphere.

Furthermore, the through holes are rotationally distributed by taking the central axis of the third branch pipe as an axis, and the number of the through holes is more than or equal to 6.

The utility model has the advantages that: the utility model provides a plug-and-play three-way pipe, when not using the third branch pipe, the shutoff piece is promoted by compression spring and is shutoff third branch pipe to only use first branch pipe and second branch pipe, and further, the mode that slider and third branch pipe inner wall sliding seal connect is as supplementary seal, has increased the liquid seepage and has come out along the route of inner wall landing, the increase leakproofness of phase change; when the device is used, the sliding part is pushed by the needle tube, so that the blocking part leaves the third branch tube, the flow passage is opened, and infusion is carried out, wherein the positioning part on the needle tube is matched with the curve groove, and the sliding part is extruded to be in sealing fit with the needle tube under the support of the compression spring, so that the infusion work can be started; when the needle tube needs to be taken down, the needle tube only needs to be reversely rotated out of the curve groove, the operation is simple, convenient and fast, and the sealing effect is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a plug-and-play three-way pipe provided by the present invention;

FIG. 2 is a schematic view of A-A in FIG. 1;

FIG. 3 is a schematic view of B-B in FIG. 1;

FIG. 4 is a schematic view of the needle tube structure provided by the present invention;

in the figure: 10-needle tube, 11-positioning piece, 200-converter piece, 210-first branch tube, 220-second branch tube, 230-third branch tube, 231-stop, 232-curved groove, 233-fixed groove, 300-sealing piece, 310-blocking piece, 320-connecting piece, 330-sliding piece, 331-through hole, 332-sealing ring, 410-pressure tube, 420-standard piece and 500-sealing cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Example (b):

referring to FIGS. 1-3, a plug-and-play tee is shown for use with a needle cannula 10, as shown in FIG. 4, the ends of the needle cannula 10 are symmetrically provided with locating members 11; the plug and play tee includes a converter member 200 and a seal 300, it being noted that for better liquid diverting efficiency, the converter member 200 is circular, although this is not the only and primary limitation and in other embodiments, may be other shapes.

The converter member 200 is connected with a first branch pipe 210 in a penetrating way; the converter member 200 is connected with a second branch pipe 220 in a penetrating way; the converter member 200 is connected with a third branch pipe 230 in a penetrating manner; the first branch pipe 210 and the second branch pipe 220 are used as a main pipeline for daily use, the third branch pipe 230 is used as a plug-and-play pipeline, and the first branch pipe 210, the second branch pipe 220 and the third branch pipe 230 are round pipes.

The sealing member 300 comprises a blocking member 310, a connecting member 320 and a sliding member 330, wherein the blocking member 310 is a semi-circular body and is positioned inside the converter member 200 to block the third branch pipe 230, so that the surface diameter of the blocking member 310 is larger than the pipe diameter of the third branch pipe 230, the connecting member 320 is fixedly connected with the blocking member 310 and the sliding member 330, the sliding member 330 is positioned inside the third branch pipe 230, and the sliding member 330 is connected with the inner wall of the third branch pipe 230 in a sliding and sealing manner; the sliding part 330 is provided with 6 through holes 331 distributed along the axial center circumference of the third branch pipe 230 along the flowing direction of the third branch pipe 230, the liquid is communicated through the through holes 331, the inner wall of the third branch pipe 230 is provided with a stop 231, the stop 231 is positioned between the blocking part 310 and the sliding part 330, and a compression spring is arranged between the stop 231 and the sliding part 330; here, the compression spring has two purposes, one of which drives the blocking member 310 to block the third branch tube 230, and the other of which makes the sliding member 330 abut against the needle tube 10, so that the liquid in the needle tube 10 can only flow into the converter 200 through the through hole 331.

As shown in fig. 2-3, the inner wall of the third branch pipe 230 is provided with a curved groove 232 for engaging with the positioning member 11, the curved groove 232 is located at an end of the third branch pipe 230 far away from the sealing member 300, the end of each curved groove 232 is provided with a fixing groove 233, the fixing groove 233 is arranged towards the outer end of the third branch pipe 230, the fixing groove 233 is used for fixing the positioning member 11, and the curved groove 232 is used for assisting the positioning member 11 to slide towards the fixing groove 233, which includes the following steps: 1: inserting the positioning member 11 into the curved slot 232; 2: the positioning groove is sunk in the fixing groove 233 in a left-handed or right-handed mode; when the needle tube 10 is fixed by the fixing groove 233, the sliding member 330 is pushed toward the converter 200, so that the stopper 310 no longer blocks the third branch tube 230, and the sliding member 330 abuts against the top of the needle tube 10 under the action of the spring, so that the liquid in the needle tube 10 is held

Only flows into the converter 200 through the through hole 331, and further, for better sealing, a rubber seal 332 is provided at the place where the sliding member 330 contacts the needle tube 10 to assist sealing.

Specifically, in the present embodiment, a sealing cover 500 is further included, the sealing cover 500 is detachably connected to an end portion of the third branch pipe 230 to seal the third branch pipe 230, so as to isolate the internal environment of the third branch pipe 230 from the outside.

Specifically, in this embodiment, a pressure tube 410 is further included, one end of the pressure tube 410 is connected to the junction of the converter element 200 and the third branch tube 230, a standard part 420 is arranged inside the pressure tube 410, and the standard part 420 is connected inside the pressure tube 410 in a sliding and sealing manner; the pressure pipe 410 is provided with scale marks, the standard part 420 divides the pressure pipe 410 into two parts, one part is communicated with the third branch pipe 230, the other part is not communicated, rare gas or other inert gas can be arranged in the non-communicated part, and the rare gas is compressed by the pressure in the three-way pipe, so that the standard part 420 starts to move, and the pressure in the three-way pipe is reflected.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-and-play three-way pipe is used in cooperation with a needle tube, and positioning pieces are symmetrically arranged at the end part of the needle tube; the three-way pipe is characterized by comprising a converter piece and a sealing piece;

the converter piece is connected with a first branch pipe in a penetrating way; a second branch pipe is connected to the converter piece in a penetrating manner; a third branch pipe is connected to the converter piece in a penetrating manner;

the sealing element comprises a blocking piece, a connecting piece and a sliding piece, the blocking piece is positioned in the converter element and used for blocking the third branch pipe, the connecting piece is fixedly connected with the blocking piece and the sliding piece, the sliding piece is positioned in the third branch pipe, and the sliding piece is connected with the inner wall of the third branch pipe in a sliding and sealing mode;

the sliding piece is provided with a through hole along the flowing direction of the third branch pipe, the inner wall of the third branch pipe is provided with a stop block, the stop block is positioned between the plugging piece and the sliding piece, and a compression spring is arranged between the stop block and the sliding piece;

be equipped with on the inner wall of third branch pipe and be used for cooperating the curve groove of setting element, the curve groove is located keep away from in the third branch pipe the one end of sealing member, every the end in curve groove is equipped with a fixed slot, the opening orientation of fixed slot the outer end setting of third branch pipe.

2. The plug-and-play tee of claim 1, wherein said sliding member is provided with a sealing ring for abutting said needle cannula.

3. The plug-and-play tee of claim 1, further comprising a sealing cap removably attached to an end of said third leg for sealing said third leg.

4. The plug-and-play tee of claim 1, further comprising a pressure tube, one end of said pressure tube being connected through a connection between said converter member and said third branch tube, said pressure tube having a standard inside thereof, said standard being slidably and sealingly connected inside said pressure tube; and the pressure pipe is provided with scale marks.

5. The plug-and-play tee of claim 1, wherein said converter member is of a ball type.

6. The plug-and-play tee of claim 5, wherein said block piece is a semi-circular body or a spherical body.

7. The plug-and-play tee of claim 1, wherein the through holes are rotationally distributed about a central axis of the third leg, and the number of through holes is greater than or equal to 6.