CN206777530U - Sterile doser - Google Patents
Sterile doser Download PDFInfo
- Publication number
- CN206777530U CN206777530U CN201621490135.1U CN201621490135U CN206777530U CN 206777530 U CN206777530 U CN 206777530U CN 201621490135 U CN201621490135 U CN 201621490135U CN 206777530 U CN206777530 U CN 206777530U
- Authority
- CN
- China
- Prior art keywords
- needle stand
- bead
- casing seat
- ribs
- sleeve pipe
- 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
Links
- 239000011324 bead Substances 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 28
- 238000009827 uniform distribution Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides sterile doser, including draw point, sleeve pipe, needle stand and filter membrane, airspace is provided between sleeve pipe madial wall and draw point lateral wall, passage is provided with the side wall of sleeve upper end, the lower end of sleeve pipe is provided with casing seat, the upper end of casing seat is connected with its lower end, casing seat lower end is provided with the casing seat bead perpendicular with casing seat side wall, the needle stand bead being engaged with casing seat bead is provided with the middle part of the needle stand, needle stand upper end circumference uniform distribution is provided with multiple ribs, ribs lower end and the upper surface of needle stand bead are vertically connected, it is vertically connected on the inside of ribs with needle stand lateral wall, the outside of ribs is interference fitted with casing seat madial wall, the filter membrane of annular is arranged between needle stand bead and casing seat bead.The beneficial effects of the utility model are the gaps that outside air is entered between two adjacent ribs and casing seat lateral wall by the side wall of filter membrane, are discharged into airspace from passage, and good filtration effect is safe.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of sterile doser.
Background technology
Transfusion is a kind of wide variety for the treatment of method, before being infused, it usually needs by pulvis or liquor medicine
Decoction first is configured to liquid preparation or solution to be infused, then liquid drug is filled into solution to be infused again.
Dosing, when taking out medicine, it is necessary to keep the air pressure balance inside and outside bottle, dosing can be made, to take out medicine operation free and relaxed.In matching somebody with somebody for decoction
Sterile doser is needed to use during putting, to keep a bottle inside and outside air pressure balance, and prevents the dust particle and disease in air
Substance is entered in solution to be injected.
Application number：201310612571.6 a kind of end face exhausting low resistance medicine feeding needle is disclosed, including hollow needle, needle guard
Pipe, pin fixed seat and air-filtering membrane, steam vent is provided with the side of the shield needle tubing of needle cannula；In the butt hole of pin fixed seat
Bottom is provided with the end face venthole to be interlinked with the external world, is provided with air-filtering membrane in the bottom of butt hole, needle cannula upper end is sleeved on
In the suit butt hole of hollow needle lower end, air-filtering membrane is pushed down in the lower surface for connecting seat pipe, and steam vent communicates with end face venthole
Even.For ease of the structure of axial core-pulling, compacting tool set is simple in construction for its needle cannula and pin fixed seat, shaping compacting efficiency high,
Gained high yield rate, the integrated cost of product reduce, more conducively industrialization.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, dosing, takes out that medicine resistance is small, using easy and convenient sterile
Doser.
The technical solution of the utility model is：
Sterile doser, including draw point, sleeve pipe, needle stand and filter membrane, are provided between sleeve pipe madial wall and draw point lateral wall
Airspace, is provided with passage in the side wall of sleeve upper end, and the lower end of described sleeve pipe is provided with casing seat, the upper end of casing seat with
Its lower end is connected, and the lower end of casing seat is provided with the casing seat bead perpendicular with casing seat side wall, is set in the middle part of the needle stand
Have a needle stand bead being engaged with casing seat bead, needle stand upper end circumference uniform distribution is provided with multiple ribs, the lower end of ribs with
The upper surface of needle stand bead is vertically connected, and inner side and the needle stand lateral wall of ribs are vertically connected, the outside of ribs and sleeve pipe
Seat madial wall interference fit, annular filter membrane are arranged between needle stand bead and casing seat bead.
It is adjacent that outside air by the filter membrane side wall of annular enters casing seat madial wall, needle stand lateral wall and two
In the gap surrounded between ribs, then into the airspace between sleeve pipe madial wall and draw point lateral wall, from sleeve pipe
Passage discharge in the side wall of upper end.The sterile doser of the utility model is simple in construction, easy for installation, and requirement on machining accuracy is low,
Production cost is low.
The lower end of the ribs is provided with projection, and raised inner side edge is connected with the outer side edges of ribs, raised base
It is vertically connected with the upper surface of needle stand bead, the raised outer side edges and the distance between axis are interior more than casing seat bottom
Footpath, the raised height are less than or equal to the thickness of filter membrane.
In order to prevent that the distance between needle stand bead and casing seat bead are too small, filter membrane is caused to be squeezed influence ventilative
Effect, the present invention are provided with projection in the lower end of ribs.
The raised height is equal to the thickness of filter membrane.
The height that raised height is equal to filter membrane can either avoid decoction from spilling, and can enough ensure filter membrane not by
Crimp, air permeable effect are good.
The upper end circumference uniform distribution of the needle stand is provided with 4 ribs.
The lower surface of described sleeve pipe seat bead is provided with multiple concentric annular grooves uniformly at intervals.
Annular groove can further improve the air permeable effect of filter membrane, reduce resistance during dosing.
The utility model has the advantages and positive effects of：Sterile medicine feeding needle has simple in construction, easy to assembly, production
Required precision is low, and production cost is low, the advantages that being easy to large-scale industrialized production, and good permeability, dosing resistance are low.
Brief description of the drawings
Fig. 1 is the structural representation of the sterile doser of the utility model
Fig. 2 is the explosive view of the sterile doser of the utility model
Fig. 3 is the structural representation of the utility model casing seat bead lower surface
In figure：
1st, draw point 2, casing seat 3, needle stand 4, sleeve pipe 5, passage 6, casing seat bead 7, needle stand bead 8, filtering
Film 9, ribs 10, projection 11, annular groove
Embodiment
As shown in Figure 1 and Figure 2, the sterile doser of the utility model, including draw point 1, sleeve pipe 4, needle stand 3 and filter membrane 8, set
Airspace is provided between the madial wall of pipe 4 and the lateral wall of draw point 1, passage 5 is provided with the side wall of the upper end of sleeve pipe 4, sleeve pipe 4
Lower end is provided with casing seat 2, and the upper end of casing seat 2 is connected with the lower end of sleeve pipe 4, and the lower end of casing seat 2 is provided with and the side wall of casing seat 2
Perpendicular casing seat bead 6, the middle part of needle stand 3 are provided with the needle stand bead 7 being engaged with casing seat bead 6, the upper end circumference of needle stand 3
Be laid with multiple ribs 9, the lower end and the upper surface of needle stand bead 7 of ribs 9 are vertically connected, the inner side of ribs 9 with
The lateral wall of needle stand 3 is vertically connected, and outside and the madial wall of casing seat 6 of ribs 9 are interference fitted, and annular filter membrane 8 is arranged on
Between needle stand bead 7 and casing seat bead 6.
Preferably, projection 10 is provided with the lower end of ribs 9, the inner side edge of projection 10 is connected with the outer side edges of ribs 9,
The base and the upper surface of needle stand bead 7 of projection 10 are vertically connected, and raised the distance between 10 outer side edges and axis are more than sleeve pipe
The internal diameter of 2 bottoms of seat, the height of projection 10 are less than or equal to the thickness of filter membrane 8.Projection 10 can pave casing seat 2, prevent
Only the distance between needle stand bead 7 and casing seat bead 6 are too small, cause filter membrane 8 to be squeezed influence air permeable effect.
Preferably, the height of projection 10 is equal to the thickness of filter membrane 8.The height of projection 10 had been equal to the height of filter membrane 8 both
Decoction can be avoided to spill, and can enough ensures that filter membrane 8 is not squeezed deformation, and air permeable effect is good.
The upper end circumference uniform distribution of the needle stand 3 is provided with 4 ribs 9.
As shown in figure 3, the lower surface of casing seat bead 6 is provided with multiple concentric annular grooves 11 uniformly at intervals.Annular is recessed
Groove 11 can further improve the air permeable effect of filter membrane 8, reduce resistance during dosing.
The course of work of this example：Outside air enters the madial wall of casing seat 2, pin by the side wall of filter membrane 8 of annular
In the gap surrounded between 3 lateral walls of seat and two adjacent ribs 9, then into the madial wall of sleeve pipe 4 and the outside of draw point 1
Airspace between wall, discharged from the passage 5 in the upper end side wall of sleeve pipe 4.
One embodiment of the present utility model is described in detail above, but the content is only of the present utility model
Preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all to be made according to present utility model application scope
Equivalent change with improve etc., all should still belong within patent covering scope of the present utility model.
Claims (5)
1. sterile doser, including draw point, sleeve pipe, needle stand and filter membrane, it is provided between sleeve pipe madial wall and draw point lateral wall logical
Gas gap, passage is provided with the side wall of sleeve upper end, it is characterised in that：The lower end of described sleeve pipe is provided with casing seat, sleeve pipe
The upper end of seat is connected with its lower end, and the lower end of casing seat is provided with the casing seat bead perpendicular with casing seat side wall, described
The needle stand bead being engaged with casing seat bead is provided with the middle part of needle stand, needle stand upper end circumference uniform distribution is provided with multiple ribs, supports
The lower end of rib and the upper surface of needle stand bead are vertically connected, and inner side and the needle stand lateral wall of ribs are vertically connected, ribs
Outside is interference fitted with casing seat madial wall, and annular filter membrane is arranged between needle stand bead and casing seat bead.
2. sterile doser according to claim 1, it is characterised in that：The lower end of the ribs is provided with projection, raised
Inner side edge be connected with the outer side edges of ribs, raised base and the upper surface of needle stand bead are vertically connected, described raised outer
The distance between side and axis are more than the internal diameter of casing seat bottom, and the raised height is less than or equal to the thickness of filter membrane
Degree.
3. sterile doser according to claim 2, it is characterised in that：The raised height is equal to the thickness of filter membrane
Degree.
4. according to the sterile doser described in claim 1-3 any one, it is characterised in that：The upper end circumference of the needle stand is equal
It is laid with 4 ribs.
5. sterile doser according to claim 4, it is characterised in that：The lower surface of described sleeve pipe seat bead is uniformly at intervals
Provided with multiple concentric annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490135.1U CN206777530U (en) | 2016-12-30 | 2016-12-30 | Sterile doser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490135.1U CN206777530U (en) | 2016-12-30 | 2016-12-30 | Sterile doser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206777530U true CN206777530U (en) | 2017-12-22 |
Family
ID=60704551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621490135.1U Expired - Fee Related CN206777530U (en) | 2016-12-30 | 2016-12-30 | Sterile doser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206777530U (en) |
-
2016
- 2016-12-30 CN CN201621490135.1U patent/CN206777530U/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: 20171222 Termination date: 20181230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |