CN206198392U - A kind of Medical bottle inserting needle - Google Patents
A kind of Medical bottle inserting needle Download PDFInfo
- Publication number
- CN206198392U CN206198392U CN201620733011.5U CN201620733011U CN206198392U CN 206198392 U CN206198392 U CN 206198392U CN 201620733011 U CN201620733011 U CN 201620733011U CN 206198392 U CN206198392 U CN 206198392U
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- CN
- China
- Prior art keywords
- air
- inlet cylinder
- needle
- connecting portion
- pressure ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model provides a kind of Medical bottle inserting needle, belongs to medical instruments field.It solves the problems, such as that existing needle for inserting bottle assembling is inconvenient.This Medical bottle inserting needle is included in the needle body of hollow rod shape, needle body front end is coniform syringe needle, there is tubular connecting portion on the lateral wall of needle body middle part, air flue is provided with needle body, air flue includes inlet and outlet, import and connecting portion inner space, outlet is located on syringe needle outer surface, inlet cylinder and pressure ring are inserted with connecting portion, inlet cylinder and connecting portion bolt, there is convex shoulder annular in shape in air inlet medial wall of the tube, the air filter film and hydrophobic, air-permeability filter membrane in disc-shaped are provided with inlet cylinder, air filter film both ends of the surface mutually recline with convex shoulder and hydrophobic, air-permeability filter membrane respectively, end face on hydrophobic, air-permeability filter membrane away from air filter film mutually reclines with pressure ring, inlet cylinder is provided with annular groove near the end face of pressure ring, pressure ring is provided with ring-type embedded division, embedded division is embedded in annular groove.This Medical bottle inserting needle has the assembling convenient advantage of difficulty.
Description
Technical field
The utility model belongs to medical instruments field, is related to a kind of Medical bottle inserting needle.
Background technology
Needle for inserting bottle is the important component of medical intravenous infusion set, and its effect is to puncture medicine bottle and keep medicine bottle Chinese medicine liquid
It is unimpeded between woven hose.
A kind of existing needle for inserting bottle Medical bottle inserting needle [application number as disclosed in Chinese patent storehouse：201320177121.4；Award
Power notification number：The U of CN 203227113] include needle body and air cleaner, air cleaner is arranged on the induction port of needle body,
Induction port is fixed with hydrophobic, air-permeability filter membrane, and the air filter film of air cleaner is arranged on outside hydrophobic, air-permeability filter membrane；Air filtration
Device is made up of end cap and air filter film, and be fixed on air filter film outside air admission hole hydrophobic, air-permeability filter membrane by end cap.
Above-mentioned needle for inserting bottle has a problem that：Air filter film and hydrophobic, air-permeability filter membrane are directly installed in induction port
, and to ensure that air flows completely through air filter film and hydrophobic, air-permeability filter membrane and can just enter into medicine bottle, cause to air
The installation accuracy requirement of filter membrane and hydrophobic, air-permeability filter membrane is higher；Meanwhile, in actual product, the bore of induction port is smaller, this
Sample just further hinders the installation of air filter film and hydrophobic, air-permeability filter membrane.
The content of the invention
The purpose of this utility model is directed to existing technology and there is above mentioned problem, it is proposed that a kind of easy to assembly medical
Needle for inserting bottle.
The purpose of this utility model can be realized by following technical proposal：A kind of Medical bottle inserting needle, including in hollow stem
The needle body of shape, the front end of needle body is that outer surface is in coniform syringe needle, has on the middle part lateral wall of needle body and is cylindrical in shape protrusion
Connecting portion, is provided with air flue in needle body, air flue includes the inner space of inlet and outlet, import and connecting portion, and outlet is located at pin
On the outer surface of head, the inner space of air flue discord needle body, it is characterised in that inlet cylinder and pressure are inserted with described connecting portion
Ring, pressure ring is located between inlet cylinder and air flue, and described inlet cylinder is mutually fixed by helicitic texture with connecting portion, described air inlet
There is convex shoulder annular in shape on the madial wall of cylinder, air filter film and the hydrophobic, air-permeability filter in disc-shaped are provided with the inlet cylinder
Film, and the central axis of air filter film, hydrophobic, air-permeability filter membrane, convex shoulder and pressure ring is conllinear, the two of described air filter film
End face mutually reclines with convex shoulder and hydrophobic, air-permeability filter membrane respectively, and away from the end face and pressure ring phase of air filter film on hydrophobic, air-permeability filter membrane
Recline, described inlet cylinder is provided with annular groove near the end face of pressure ring, embedded division annular in shape is correspondingly provided with pressure ring, it is embedding
Enter portion to be inserted in annular groove, and embedded division is mutually fixed by way of tight fit with inlet cylinder.
When using, needle for inserting bottle passes through the plug of needle pierces medicine bottle and extend into medicine bottle to draw liquid；When in medicine bottle
When there is negative pressure, air sequentially passes through inlet cylinder, convex shoulder, air filter film, hydrophobic, air-permeability filter membrane, pressure ring, air flue and eventually enters into
To in medicine bottle, to maintain the uniformity of medicine bottle inner and outer air pressure；Hydrophobic, air-permeability filter membrane can prevent liquid from being flowed out through air flue.
In assembling, this three's this needle for inserting bottle is connected with connecting cylinder with hydrophobic, air-permeability filter membrane for pressure ring, air filter film,
And inlet cylinder and connecting portion are detachably fixed by helicitic texture so that each parts for playing air filtering can be in needle body
It is connected with needle body again after being completed outward, so as to effectively increase the property easy to assembly of this needle for inserting bottle；Secondly, air filter film and dredge
The ventilative filter membrane of water be both convex shoulders in pressure ring and in inlet cylinder clamping under be positioned, make in actual assembled,
Air filter film and hydrophobic, air-permeability filter membrane only need to be completely covered by the centre bore of pressure ring and convex shoulder, right so as to reduce
The requirement of the assembly precision of air filter film and hydrophobic, air-permeability filter membrane, then further increases the property easy to assembly of this needle for inserting bottle.
In above-mentioned Medical bottle inserting needle, the lateral wall of described inlet cylinder is provided with seal groove annular in shape, seal groove
0 shape circle is inside provided with, and the outer peripheral face of 0 shape circle offsets with the madial wall of described connecting portion.
Reliable sealing is formed in the presence of 0 shape circle, between connecting portion and inlet cylinder, the impurity such as dust is prevented effectively from and is entered
Enter in connecting portion and entered into along air flue and liquid is polluted in medicine bottle.
In above-mentioned Medical bottle inserting needle, Gask-O-Seal, Gask-O-Seal and annular are provided with described annular groove
The central axis of both grooves is conllinear, and Gask-O-Seal both ends of the surface respectively with the end face and the bottom wall of annular groove of embedded division
Offset.
First, embedded division is inserted in annular groove by way of tight fit, is inherently made between embedded division and inlet cylinder
Stronger sealing is formed, secondly, and Gask-O-Seal is set between embedded division and inlet cylinder, made between embedded division and inlet cylinder
More structurally sound sealing is formed, air is passed fully through air filter film and hydrophobic, air-permeability filter membrane is entered into air flue and is improved this
The job stability of needle for inserting bottle.
In above-mentioned Medical bottle inserting needle, there is tapered spigot surface on the lateral wall of described embedded division.
In the presence of spigot surface, embedded division is inserted into annular groove and plays preferable guide effect, make embedded division
Installation be disposably accurately installed in place, come further improve this needle for inserting bottle assembling convenience.
In above-mentioned Medical bottle inserting needle, the outer end of described inlet cylinder stretches out connecting portion and is located at needle body outside, and this enters
There are anti-slip veins on the outer end lateral wall of inflator.
By setting anti-slip veins, increase the roughness of air inlet tube outer surface, prevent skidding occur when rotating inlet cylinder,
To effectively improve the property easy to assembly of this needle for inserting bottle.
Compared with prior art, this Medical bottle inserting needle has advantages below：
1st, in assembling, this three is connected with connecting cylinder with hydrophobic, air-permeability filter membrane for pressure ring, air filter film, and air inlet
Cylinder and connecting portion are detachably fixed by helicitic texture so that each parts for playing air filtering can be in pin assembled in vitro
After the completion of be connected with needle body again, so as to effectively increase the property easy to assembly of this needle for inserting bottle.
2nd, air filter film and hydrophobic, air-permeability filter membrane be both convex shoulders in pressure ring and in inlet cylinder clamping under quilt
Positioning, make in actual assembled, air filter film and hydrophobic, air-permeability filter membrane only need to the centre bore of pressure ring and convex shoulder is complete
Cover in, so as to reduce the requirement of the assembly precision to air filter film and hydrophobic, air-permeability filter membrane, then further improve
The property easy to assembly of this needle for inserting bottle.
Brief description of the drawings
Fig. 1 is the structural representation of this Medical bottle inserting needle.
Fig. 2 is the mplifying structure schematic diagram at A in Fig. 1.
In figure, 1, needle body；1a, syringe needle；1b, inlet；1c, air flue；1d, connecting portion；2nd, inlet cylinder；2a, convex shoulder；3rd, it is empty
Air filter film；4th, hydrophobic, air-permeability filter membrane；5th, pressure ring；5a, embedded division；5a1, spigot surface；6th, 0 shape circle；7th, Gask-O-Seal.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, this Medical bottle inserting needle is by needle body 1, inlet cylinder 2, air filter film 3, hydrophobic, air-permeability filter membrane 4, pressure
The grade of ring 5 is constituted.
Wherein.Needle body 1 is in hollow rod shape, and the front end of the needle body 1 is in coniform syringe needle 1a for outer surface, and syringe needle 1a
Side offers the inlet 1b with the inner space of needle body 1.As shown in figure 1, air flue 1c is provided with needle body 1, and air flue 1c gets along well
The inner space of needle body 1.On the lateral wall at the middle part of needle body 1 with cylindrical protrusion connecting portion 1d, air flue 1c include into
Mouthful and outlet, wherein, the inner space of import and connecting portion 1d, outlet on the outer surface of syringe needle 1a, and now, outlet and
Inlet 1b is distributed in syringe needle 1a both sides.
Inlet cylinder 2 is cylindrical and is inserted in connecting portion 1d.The outer end of inlet cylinder 2 stretches out connecting portion 1d and is located at needle body 1
There are anti-slip veins (not shown) on outside, and the outer end lateral wall of the inlet cylinder 2.Inlet cylinder 2 passes through helicitic texture and connecting portion
1d phases are fixed, to facilitate the assembling of inlet cylinder 2 and connecting portion 1d.Further illustrate, the lateral wall of inlet cylinder 2 is provided with annularly
Seal groove, 0 shape circle 6 is provided with seal groove, and the outer peripheral face of 0 shape circle 6 offsets with the madial wall of connecting portion 1d, so that intake section
Reliable sealing is formed and inlet cylinder 2 between.
As shown in Fig. 2 pressure ring 5 is in annular shape, the pressure ring 5 is also in connecting portion 1d and positioned at inlet cylinder 2 and air flue 1c
Between.Inlet cylinder 2 is provided with annular groove near the end face of pressure ring 5, and annular groove is coaxial with inlet cylinder 2.Correspondence on pressure ring 5
Embedded division 5a annular in shape is provided with, embedded division 5a is inserted in annular groove, and embedded division 5a is by way of tight fit and air inlet
Cylinder 2 is mutually fixed, to improve the convenience that embedded division 5a and inlet cylinder 2 are installed.Further illustrate, have on the lateral wall of embedded division 5a
There is tapered spigot surface 5a1；Gask-O-Seal 7, the center of both Gask-O-Seal 7 and annular groove are provided with annular groove
Axis collinear, and the both ends of the surface of Gask-O-Seal 7 offset with the end face of embedded division 5a and the bottom wall of annular groove respectively, so that embedding
Enter and formed between portion 5a and inlet cylinder 2 reliable sealing.
Have in circular convex shoulder 2a on the madial wall of inlet cylinder 2, and convex shoulder 2a and inlet cylinder 2 are coaxial.Air filter film 3
In disc-shaped and it is respectively positioned in inlet cylinder 2 with hydrophobic, air-permeability filter membrane 4, now, air filter film 3 and hydrophobic, air-permeability filter membrane 4 are located at
Between convex shoulder 2a and pressure ring 5, and the central axis of air filter film 3, hydrophobic, air-permeability filter membrane 4, convex shoulder 2a and pressure ring 5 four is common
Line.As shown in figure 1, the both ends of the surface of air filter film 3 mutually recline with convex shoulder 2a with hydrophobic, air-permeability filter membrane 4 respectively, and hydrophobic, air-permeability is filtered
End face on film 4 away from air filter film 3 mutually reclines with pressure ring 5, by air filter film 3 and the stable position of hydrophobic, air-permeability filter membrane 4.
When using, needle for inserting bottle pierces through the plug of medicine bottle and extend into medicine bottle to draw liquid by syringe needle 1a；Work as medicine bottle
When inside there is negative pressure, air sequentially passes through inlet cylinder 2, convex shoulder 2a, air filter film 3, hydrophobic, air-permeability filter membrane 4, pressure ring 5, air flue 1c
And enter eventually into medicine bottle, to maintain the uniformity of medicine bottle inner and outer air pressure.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of Medical bottle inserting needle, including in the needle body of hollow rod shape, the front end of needle body is in coniform syringe needle, pin for outer surface
There is the connecting portion for being cylindrical in shape protrusion on the middle part lateral wall of body, air flue is provided with needle body, air flue includes inlet and outlet, import
It is located on the outer surface of syringe needle with the inner space of connecting portion, and outlet, the inner space of air flue discord needle body, its feature exists
In, inlet cylinder and pressure ring are inserted with described connecting portion, pressure ring is located between inlet cylinder and air flue, and described inlet cylinder passes through spiral shell
Line structure is mutually fixed with connecting portion, has convex shoulder annular in shape on the madial wall of described inlet cylinder, is provided with the inlet cylinder
In the air filter film and hydrophobic, air-permeability filter membrane of disc-shaped, and air filter film, hydrophobic, air-permeability filter membrane, convex shoulder and pressure ring center
Axis is conllinear, and the both ends of the surface of described air filter film mutually recline with convex shoulder and hydrophobic, air-permeability filter membrane respectively, and hydrophobic, air-permeability is filtered
End face on film away from air filter film mutually reclines with pressure ring, and described inlet cylinder is provided with annular groove near the end face of pressure ring,
Embedded division annular in shape is correspondingly provided with pressure ring, embedded division is inserted in annular groove, and embedded division by way of tight fit with
Inlet cylinder is mutually fixed.
2. Medical bottle inserting needle according to claim 1, it is characterised in that the lateral wall of described inlet cylinder is provided with ring
The seal groove of shape, is provided with 0 shape circle in seal groove, and the outer peripheral face of 0 shape circle offsets with the madial wall of described connecting portion.
3. Medical bottle inserting needle according to claim 1, it is characterised in that be provided with ring packing in described annular groove
Pad, the central axis of both Gask-O-Seal and annular groove is conllinear, and Gask-O-Seal both ends of the surface respectively with embedded division
The bottom wall of end face and annular groove offsets.
4. Medical bottle inserting needle according to claim 3, it is characterised in that have in cone on the lateral wall of described embedded division
The spigot surface of shape.
5. Medical bottle inserting needle according to claim 1, it is characterised in that connecting portion is stretched out simultaneously in the outer end of described inlet cylinder
Positioned at needle body outside, there are anti-slip veins on the outer end lateral wall of the inlet cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733011.5U CN206198392U (en) | 2016-07-12 | 2016-07-12 | A kind of Medical bottle inserting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733011.5U CN206198392U (en) | 2016-07-12 | 2016-07-12 | A kind of Medical bottle inserting needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206198392U true CN206198392U (en) | 2017-05-31 |
Family
ID=58754913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620733011.5U Expired - Fee Related CN206198392U (en) | 2016-07-12 | 2016-07-12 | A kind of Medical bottle inserting needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206198392U (en) |
-
2016
- 2016-07-12 CN CN201620733011.5U patent/CN206198392U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |