CN205007004U - Inner syringe of puncture drainage needle tubing - Google Patents
Inner syringe of puncture drainage needle tubing Download PDFInfo
- Publication number
- CN205007004U CN205007004U CN201520757159.8U CN201520757159U CN205007004U CN 205007004 U CN205007004 U CN 205007004U CN 201520757159 U CN201520757159 U CN 201520757159U CN 205007004 U CN205007004 U CN 205007004U
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- China
- Prior art keywords
- needle tubing
- tube
- puncture drainage
- inner needle
- inner syringe
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Abstract
The utility model discloses an inner syringe of puncture drainage needle tubing, set up a crescent recess on inner syringe's the pipe wall, the chord length of crescent recess does the third of inner syringe's diameter, the lower terminal surface of crescent recess with the distance of inner syringe's lower terminal surface is 15 -20mm, inner syringe fastening is outside in the needle tubing. The utility model discloses an inner syringe of puncture drainage needle tubing, with outer needle tubing and three way connection post assembling, inside body fluid need can not be followed inner syringe through the suction and flowed collection cell or tissue that can be more abundant.
Description
Technical field
This utility model belongs to medical instruments field, relates to a kind of inner needle tube of puncture drainage needle tubing.
Background technology
Existing puncture needle tubing only comprises puncture effect usually, and needle tubing lining core adopts solid needle tubing to serve as a contrast core, and whole needle tubing only exists single chamber passage, and the mode of suction can only be adopted in the process of drain to be extracted in patient body by required cell or tissue.
Utility model content
The purpose of this utility model is the defect overcoming prior art, a kind of inner needle tube of puncture drainage needle tubing is provided, after assembling with outer needle tubing and three way cock, inner body fluid does not need to be flowed out from inner needle tube by suction, can collecting cell or tissue more fully.
The technical scheme realizing above-mentioned purpose is: a kind of inner needle tube of puncture drainage needle tubing, described puncture drainage needle tubing comprises needle tubing body and three way cock, described needle tubing body comprises outer needle tubing and inner needle tube, described three way cock is inverted y-type structure, and this three way cock comprises the syringe tip interface being positioned at upper end and the cleanout fluid interface being positioned at lower end and drawing liquid interface; Described needle tubing body is vertically arranged, in syringe tip interface described in the lower end grafting of described needle tubing body;
The tube wall of described inner needle tube is offered a crescent shaped groove, the chord length of described crescent shaped groove is 1/3rd of the diameter of described inner needle tube, and the distance of the lower surface of described crescent shaped groove and the lower surface of described inner needle tube is 15-20mm;
Described inner needle tube is fastened in outer needle tubing.
The inner needle tube of above-mentioned a kind of puncture drainage needle tubing, wherein, described cleanout fluid interface and drawing liquid interface adopt Rule conehead respectively.
The inner needle tube of puncture drainage needle tubing of the present utility model, after assembling, compared with prior art, has the following advantages with outer needle tubing and three way cock:
(1) can the flushing liquor such as saline injection, make inner body fluid not need to be flowed out from inner needle tube by suction;
(2) increment flushing flow process, does not need to carry out suction process less to patient's damage;
(3) cell or tissue can be collected more fully in the process of collecting cell or tissue.
Accompanying drawing explanation
Fig. 1 is the structural representation of puncture drainage needle tubing in this utility model;
Fig. 2 is the side view of puncture drainage needle tubing in this utility model;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 is the enlarged diagram of part B in Fig. 3;
Fig. 5 is the structural representation of inner needle tube.
Detailed description of the invention
In order to make those skilled in the art can understand the technical solution of the utility model better, below in conjunction with accompanying drawing, its detailed description of the invention is described in detail:
Refer to Fig. 1 to Fig. 5, most preferred embodiment of the present utility model, puncture drainage needle tubing comprises needle tubing body 10 and three way cock 3, and needle tubing body 10 comprises outer needle tubing 1 and inner needle tube 2.
Three way cock 3 is in inverted y-type structure, and this three way cock 3 comprises the syringe tip interface 31 being positioned at upper end and the cleanout fluid interface 32 being positioned at lower end and drawing liquid interface 33.Cleanout fluid interface 32 and drawing liquid interface 33 adopt Rule conehead respectively.
Needle tubing body 10 is vertically arranged, in the lower end plug-in needle tube end interface 31 of needle tubing body 10.
The length of outer needle tubing 1 is 67-245mm, and the tube wall of outer needle tubing 1 is offered an inlet 11, inlet 11 is rectangle, and the width of inlet 11 is 8.5mm, and length is 1.2mm; Inlet 11 is positioned at the intersection of syringe tip interface 31, cleanout fluid interface 32 and drawing liquid interface 33, and this inlet 11 is communicated with cleanout fluid interface 31; Distance between the upper surface of outer needle tubing 1 and the upper surface of three way cock 3 is 63.5mm-203.2mm.
Referring to Fig. 5, the inner needle tube of puncture drainage needle tubing, the tube wall of inner needle tube 2 is offered a crescent shaped groove 21, the chord length of crescent shaped groove 21 is 1/3rd of the diameter of inner needle tube 2, and the distance of the lower surface of crescent shaped groove 21 and the lower surface of inner needle tube 2 is 15-20mm.
Inner needle tube 2 is fastened in outer needle tubing, and the tube wall of inner needle tube 2 needle tubing 1 outside after extruding the tube wall of outer needle tubing 1 forms pressing groove, and the distance of the lower surface of pressing groove and outer needle tubing 1 is 10-15mm.
The inner needle tube of puncture drainage needle tubing of the present utility model, in use, after assembling with outer needle tubing and three way cock, the flushing liquors such as normal saline inject between outer needle tubing 1 and inner needle tube 2 by cleanout fluid interface 32 and inlet 11, the pressing groove that the tube wall of inner needle tube 2 needle tubing 1 outside after extruding the tube wall of outer needle tubing 1 is formed can prevent flushing liquor leakage, make flushing liquor only flow to needle point position, wait that collecting cell or tissue is collected by inner needle tube, do not need to carry out suction process and damage less to patient.
In sum, the inner needle tube of puncture drainage needle tubing of the present utility model, after assembling with outer needle tubing and three way cock, inner body fluid does not need to be flowed out from inner needle tube by suction, can collecting cell or tissue more fully.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to this utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (2)
1. the inner needle tube of a puncture drainage needle tubing, described puncture drainage needle tubing comprises needle tubing body and three way cock, described needle tubing body comprises outer needle tubing and inner needle tube, described three way cock is inverted y-type structure, and this three way cock comprises the syringe tip interface being positioned at upper end and the cleanout fluid interface being positioned at lower end and drawing liquid interface; Described needle tubing body is vertically arranged, in syringe tip interface described in the lower end grafting of described needle tubing body; It is characterized in that,
The tube wall of described inner needle tube is offered a crescent shaped groove, the chord length of described crescent shaped groove is 1/3rd of the diameter of described inner needle tube, and the distance of the lower surface of described crescent shaped groove and the lower surface of described inner needle tube is 15-20mm;
Described inner needle tube is fastened in outer needle tubing.
2. the inner needle tube of a kind of puncture drainage needle tubing according to claim 1, is characterized in that, described cleanout fluid interface and drawing liquid interface adopt Rule conehead respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757159.8U CN205007004U (en) | 2015-09-28 | 2015-09-28 | Inner syringe of puncture drainage needle tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520757159.8U CN205007004U (en) | 2015-09-28 | 2015-09-28 | Inner syringe of puncture drainage needle tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205007004U true CN205007004U (en) | 2016-02-03 |
Family
ID=55205639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520757159.8U Active CN205007004U (en) | 2015-09-28 | 2015-09-28 | Inner syringe of puncture drainage needle tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205007004U (en) |
-
2015
- 2015-09-28 CN CN201520757159.8U patent/CN205007004U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |