CN201052329Y

CN201052329Y - Lien needle with three-way valve

Info

Publication number: CN201052329Y
Application number: CNU2007200387293U
Authority: CN
Inventors: 吴林元; 李卫国
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-19
Filing date: 2007-06-19
Publication date: 2008-04-30
Anticipated expiration: 2017-06-19

Abstract

The utility model discloses an indwelling needle with a three-way valve, which comprises a duct base, wherein the duct base is provided inside with the rotatable three-way valve, the central axis of the three-way valve is perpendicular to the central axis of the duct base, the side part of the duct base is provided with at least one Ruhr connector, the three-way valve is provided inside with a first channel for a puncture needle to get through and a second channel communicated with the first channel. When the first channel is communicated with the two ends of the duct base, the second channel is communicated with the Ruhr connector, then the three-way valve is rotate, a first through-hole is communicated with the Ruhr connector and the second channel can be communicated with the front or the back of the duct base. The utility model not only can be charged with plural kinds of liquid but also can control to open or close each channel by rotating the valve handle of the three-way valve. The utility model is quite easy to operate and convenient to use.

Description

The remaining needle of band three-way valve

Technical field

This utility model relates to a kind of remaining needle with three-way valve.

Background technology

Present remaining needle mainly includes puncture needle, conduit, catheter block, and catheter block is connected rear end of conduit, and puncture needle comprises the notch needle tubing that is plugged in conduit and the catheter block, the notch needle stand that is exposed to catheter block.After medical personnel use venous indwelling at the patient's vein vascular puncture, puncture needle to be extracted from catheter block rear end and conduit, comparatively softish duct portion is kept somewhere in the patient's vein blood vessel, carries out continuously to the patient or transfusion discontinuously by conduit.

In order to import multiple liquid to the patient simultaneously, main method has at present: 1, connect a three way cock at the rear portion of catheter block, three-way valve is installed, to control each road path again in the three way cock.But such structure more complicated, volume are big, cost is also higher; 2, adopt the catheter block of Y type or multi-path, though can import multiple liquid simultaneously like this, closing of control access used inconvenient simply.

Summary of the invention

This utility model purpose is: a kind of remaining needle with three-way valve is provided, this remaining needle not only can be imported multiple liquid simultaneously, and can control the Push And Release of each path by the valve handle that rotates three-way valve, operates very simple, use very conveniently, and volume is little, function is complete.

The technical solution of the utility model is: a kind of remaining needle with three-way valve, comprise catheter block, rotating three-way valve is installed in the described catheter block, the central shaft of three-way valve is perpendicular to the central shaft of catheter block, the sidepiece of catheter block is provided with a female Luer at least, be provided with the first passage that can supply puncture needle to pass in the three-way valve, the second channel that is communicated with first passage, during the two ends conducting of first passage and catheter block, second channel and female Luer conducting, after rotating three-way valve, first through hole can with the female Luer conducting, second channel can with the front end or the rear end conducting of catheter block.

The further technical scheme of this utility model is: a kind of remaining needle with three-way valve, comprise catheter block, rotating three-way valve is installed in the described catheter block, the central shaft of three-way valve is perpendicular to the central shaft of catheter block, the sidepiece of catheter block is provided with a female Luer at least, be provided with the first passage that can supply puncture needle to pass in the three-way valve, the second channel that is communicated with first passage, during the two ends conducting of first passage and catheter block, second channel and female Luer conducting, after rotating three-way valve, first through hole can with the female Luer conducting, second channel can with the front end or the rear end conducting of catheter block; Described first passage and second channel have constituted T shape passage in three-way valve, the plane at T shape passage place is perpendicular to the central shaft of three-way valve.

The more detailed technical scheme of this utility model is: a kind of remaining needle with three-way valve, comprise catheter block, rotating three-way valve is installed in the described catheter block, the central shaft of three-way valve is perpendicular to the central shaft of catheter block, the sidepiece of catheter block is provided with a female Luer at least, be provided with the first passage that can supply puncture needle to pass in the three-way valve, the second channel that is communicated with first passage, during the two ends conducting of first passage and catheter block, second channel and female Luer conducting, after rotating three-way valve, first through hole can with the female Luer conducting, second channel can with the front end or the rear end conducting of catheter block; Described first passage and second channel have constituted T shape passage in three-way valve, the plane at T shape passage place is perpendicular to the central shaft of three-way valve; Described three-way valve is provided with the valve handle that stretches out catheter block, and the upper end of valve handle is a T shape handle, T shape handle and the corresponding setting of T shape passage; Described female Luer is two, and two female Luer are arranged on the both sides of three-way valve and accordingly perpendicular to three-way valve.

This utility model advantage is:

1. this utility model not only can be imported multiple liquid simultaneously, and can control the Push And Release of each path by the valve handle that rotates three-way valve, operates very simply, uses very conveniently, and volume is little, function is complete.

2. the upper end of valve handle of the present utility model is and the T shape handle of the corresponding setting of T shape passage, when therefore rotating valve handle, can learn the direction of T shape passage according to the direction of T shape handle, thereby make things convenient for the Push And Release of controlling each path.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further described:

Vertical view when Fig. 1 is female Luer of this utility model;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Vertical view when Fig. 4 is two female Luer of this utility model;

Fig. 5 is the cutaway view of Fig. 1;

Fig. 6 is the front view of Fig. 1.

Wherein: 1 catheter block, 2 three-way valve; 3 female Luer; 4 puncture needles, 5 first passages; 6 second channels; 7T shape passage 8 valve handle 9T shape handles.

The specific embodiment

Embodiment: extremely shown in Figure 6 as Fig. 1, a kind of remaining needle with three-way valve, comprise catheter block 1, rotating three-way valve 2 is installed in the catheter block 1, the central shaft of three-way valve 2 is perpendicular to the central shaft of catheter block 1, the sidepiece of catheter block 1 is provided with a female Luer 3 at least, be provided with the first passage 5 that can supply puncture needle 4 to pass in the three-way valve 2, the second channel 6 that is communicated with first passage 5, during the two ends conducting of first passage 5 and catheter block 1, second channel 6 and female Luer 3 conductings, after rotating three-way valve 2, first through hole 5 can with female Luer 3 conductings, second channel 6 can with the front end or the rear end conducting of catheter block 1.

First passage 5 and second channel 6 have constituted T shape passage 7 in three-way valve 2, the plane at T shape passage 7 places is perpendicular to the central shaft of three-way valve 2; Three-way valve 2 is provided with the valve handle 8 that stretches out catheter block 1, and the upper end of valve handle 8 is a T shape handle 9, T shape handle 9 and the 7 corresponding settings of T shape passage.

Above-mentioned female Luer 3 can be one (as shown in Figure 1 to Figure 3), also can be two relative (extremely shown in Figure 6 as Fig. 4), and female Luer 3 is provided with perpendicular to three-way valve 2.

During use,, operate very simply, use very convenient as long as rotate the Push And Release that three-way valve 2 just can be controlled each path.And the upper end of valve handle 8 is and the T shape handle 9 of T shape passage 7 corresponding settings, when therefore rotating T shape handle 9, can learn the direction of T shape passage 7 according to the direction of T shape handle 9, has made things convenient for the Push And Release of controlling each path.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, this utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within this utility model scope required for protection.

Claims

1. remaining needle with three-way valve, comprise catheter block (1), it is characterized in that: rotating three-way valve (2) is installed in the described catheter block (1), the central shaft of three-way valve (2) is perpendicular to the central shaft of catheter block (1), the sidepiece of catheter block (1) is provided with a female Luer (3) at least, be provided with the first passage (5) that can supply puncture needle (4) to pass in the three-way valve (2), the second channel (6) that is communicated with first passage (5), during the two ends conducting of first passage (5) and catheter block (1), second channel (6) and female Luer (3) conducting, after rotating three-way valve (2), first through hole (5) can with female Luer (3) conducting, second channel (6) can with the front end or the rear end conducting of catheter block (1).

2. according to the remaining needle of the described band three-way valve of claim 1, it is characterized in that: described first passage (5) and second channel (6) have constituted T shape passage (7) in three-way valve (2), and the plane at T shape passage (7) place is perpendicular to the central shaft of three-way valve (2).

3. according to the remaining needle of the described band three-way valve of claim 2, it is characterized in that: described three-way valve (2) is provided with the valve handle (8) that stretches out catheter block (1), and the upper end of valve handle (8) is a T shape handle (9), T shape handle (9) and the corresponding setting of T shape passage (7).

4. according to the remaining needle of claim 1 or 2 or 3 described band three-way valve, it is characterized in that: described female Luer (3) is two, and two female Luer (3) are arranged on the both sides of three-way valve (2) and accordingly perpendicular to three-way valve (2).