CN109432549A - Filtering exudate syringe - Google Patents
Filtering exudate syringe Download PDFInfo
- Publication number
- CN109432549A CN109432549A CN201811541064.7A CN201811541064A CN109432549A CN 109432549 A CN109432549 A CN 109432549A CN 201811541064 A CN201811541064 A CN 201811541064A CN 109432549 A CN109432549 A CN 109432549A
- Authority
- CN
- China
- Prior art keywords
- needle stand
- connector
- frustum
- outer barrel
- annular surface
- 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.)
- Granted
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 32
- 210000000416 exudates and transudate Anatomy 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 241001149930 Protura <class> Species 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000009827 uniform distribution Methods 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/3145—Filters incorporated in syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a kind of filtering exudate syringe, including syringe and injection needle, and lower needle stand includes conehead chamber, lower needle stand frustum and lower needle stand outer barrel, and lower needle stand frustum inner sidewall circumference uniform distribution is equipped with multiple grooves；Connector includes connector outer barrel, connector annular surface and connector inner cylinder, and circumference uniform distribution is equipped with multiple connector through-holes on connector annular surface；Upper needle stand includes upper needle stand outer barrel, upper needle stand frustum and steel needle fixing seat, the inner sidewall of the inner sidewall and upper needle stand outer barrel of the lateral wall of connector outer barrel and lower needle stand outer barrel is interference fitted, lower check valve is the elastic sphere being set in lower needle stand frustum, the downside of connector annular surface is arranged in the filter membrane of annular, and the upside of connector annular surface is equipped with the upper check valve of annular.It is highly-safe the beneficial effects of the invention are as follows unidirectional filtering.
Description
Technical field
The invention belongs to medical instruments fields, more particularly, to a kind of filtering exudate syringe.
Background technique
It is well known that the injection of clinical use is encapsulated in vial more at present, with the syringe needle of syringe prick rubber stopper or
When cutting vial extraction medical fluid with grinding wheel, bottle stopper material bits or glass powder can enter in injection.Traditional syringe does not have
There is filtering function, these impurity can be extracted into syringe when extracting liquid medicine and direct injection is to patient, to induce quiet
The diseases such as arteries and veins inflammation.
The filtration syringe of Patent No. CN103721321A is unreasonable since one-way valve structures design, and exists to syringe
Since the extruding of negative pressure can be such that the channel among check valve also opens when interior extraction liquid, medical fluid can be from the centre of check valve
Channel enters syringe without filtering, there is the halfway risk of filtering, and original structure is filtering when extracting medical fluid, there is note
The risk that the impurity filtered before can be injected away again when penetrating medical fluid.
Summary of the invention
A kind of the object of the present invention is to provide structures simple, highly-safe filtering exudate syringe.
The technical scheme is that
Filtering exudate syringe, including syringe and injection needle, injection needle include lower needle stand, lower check valve, filtering
Film, connector, upper check valve, upper needle stand and the steel needle being fixed on needle stand, lower needle stand include conehead chamber, lower needle stand frustum and
Lower needle stand outer barrel, conehead chamber are connected with syringe conehead, and the small end of lower needle stand frustum is connected with conehead chamber, lower needle stand frustum
Big end be connected with lower needle stand outer barrel, lower needle stand frustum inner sidewall circumference uniform distribution be equipped with multiple grooves；Connector includes connection
Part outer barrel, connector annular surface and connector inner cylinder, outer circle and the connector outer barrel of connector annular surface are vertically connected,
The inner circle of connector annular surface is vertically connected with connector inner cylinder, and circumference uniform distribution is equipped with multiple connectors on connector annular surface
Through-hole；Lower check valve is the elastic sphere being set in lower needle stand frustum；Upper needle stand includes upper needle stand outer barrel, upper needle stand frustum
With steel needle fixing seat, the great circle of upper needle stand frustum is connected with one end of upper needle stand outer barrel, the roundlet and circle of upper needle stand frustum
The steel needle fixing seat of tubular is connected, and steel needle is arranged in steel needle fixing seat, and the lower end of the lateral wall of connector outer barrel is under
The inner sidewall of needle stand outer barrel is interference fitted, the inner sidewall mistake of the upper end of the lateral wall of connector outer barrel and upper needle stand outer barrel
It is full of cooperation, the sphere diameter of lower check valve is greater than lower needle stand frustum end diameter, and connector annular surface is arranged in annular filter membrane
Downside, the upside of connector annular surface are equipped with the upper check valve of annular.
When filtering exudate syringe feed liquor of the present invention, space closure between upper check valve and connector annular surface places an order
It is opened to the gap between valve and connector lower shell, medical fluid is entered in lower needle stand frustum by connector lower shell, then
Knit stitch block hole is flowed by the groove on lower needle stand frustum inner sidewall, is entered in conehead chamber.Out when liquid, lower check valve and company
Space closure between fitting inner cylinder, the gap between upper check valve and connector annular surface are opened, and medical fluid is flowed out of groove
Enter into lower needle stand frustum, by filter membrane, enters in the connector through-hole in connector annular surface, then from connector ring
Gap between shape face and upper check valve is flowed into needle stand frustum.
The length of groove is equal to the length of lower needle stand frustum inner sidewall.
Connector inner cylinder lower ending opening is tubaeform to match with lower check valve.
The upper end of connector inner cylinder lateral wall is equipped with annular groove, and upper check valve is set in annular groove.
The diameter of connector through-hole lower end is greater than the diameter of connector through-hole upper end.
Upper needle stand further includes upper needle stand annular surface, and the inner circle of upper needle stand annular surface is connected with the great circle of upper needle stand frustum,
The outer circle of upper needle stand annular surface is vertically connected with upper needle stand outer barrel.
Circumference uniform distribution is equipped with positioning bar on the lateral wall of steel needle fixing seat and upper needle stand frustum.
The advantages and positive effects of the present invention are: due to the adoption of the above technical scheme, filtering exudate syringe feed liquor
It does not filter, filtering exudate, unidirectional to filter, filter pressure is small, and highly-safe, rapid operation is convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of filtering exudate syringe of the present invention
Fig. 2 is filtering exudate syringe needle explosive view of the present invention
Fig. 3 is needle stand structure schematic diagram under filtering exudate syringe of the present invention
Fig. 4 is filtering exudate syringe connecting-piece structure schematic diagram of the present invention
Fig. 5 is filtering exudate syringe feed liquor status architecture schematic diagram of the present invention
Fig. 6 is that filtering exudate syringe of the present invention goes out liquid status structural schematic diagram
In figure:
1, syringe 2, lower needle stand 3, lower check valve 4, filter membrane
5, connector 6, upper check valve 7, upper needle stand 8, steel needle
21, lower needle stand outer barrel 22, conehead chamber 23, lower needle stand frustum 24, groove
25, knit stitch block hole 51, connector outer barrel 52, connector inner cylinder 53, connector annular surface
54, connector through-hole 71, upper needle stand outer barrel 72, upper needle stand frustum 73, positioning bar
74, steel needle fixing seat 75, upper needle stand annular surface
Specific embodiment
As shown in Figure 1 and Figure 2, filtering exudate syringe of the present invention, including syringe 1 and injection needle, injection needle include
Lower needle stand 2, lower check valve 3, filter membrane 4, connector 5, upper check valve 6, upper needle stand 7 and the steel needle 8 being fixed on needle stand 7,
As shown in figure 3, lower needle stand 2 includes conehead chamber 22, lower needle stand frustum 23 and lower needle stand outer barrel 21, conehead chamber 22 and syringe 1
Conehead is connected, and the small end of lower needle stand frustum 23 is connected with conehead chamber 22, the big end of lower needle stand frustum 23 and lower needle stand outer barrel
21 are vertically connected, and lower 23 inner sidewall circumference uniform distribution of needle stand frustum is equipped with multiple grooves 24；As shown in figure 4, connector 5 includes connection
Part outer barrel 51, connector annular surface 53 and connector inner cylinder 52, the outer circle and connector outer barrel of connector annular surface 53
It is vertically connected in the middle part of 52 inner sidewalls, is vertically connected in the middle part of the inner circle and 51 lateral wall of connector inner cylinder of connector annular surface 53,
Circumference uniform distribution is equipped with multiple connector through-holes 54 on connector annular surface 53；Lower check valve 3 is to be set in lower needle stand frustum 23
Elastic sphere；Upper needle stand 7 includes upper needle stand outer barrel 71, upper needle stand frustum 72 and steel needle fixing seat 74, upper needle stand frustum 72
Great circle be connected with one end of upper needle stand outer barrel 71, the roundlet of upper needle stand frustum 72 and columnar 74 phase of steel needle fixing seat
Connection, steel needle 8 are arranged in steel needle fixing seat 74, the lower end of the lateral wall of connector outer barrel 51 and lower needle stand outer barrel 21
The inner sidewall of inner sidewall interference fit, the upper end of the lateral wall of connector outer barrel 51 and upper needle stand outer barrel 71 is interference fitted,
The sphere diameter of lower check valve 3 is greater than lower 23 end diameter of needle stand frustum, and annular filter membrane 4 is arranged under connector annular surface 53
Side, the upside of connector annular surface 53 are equipped with the upper check valve 6 of annular.
As shown in Figure 5, Figure 6, in order to reduce the pressure of imbibition and injection, increase the circulation path of medical fluid, the length of groove 24
Degree is equal to the length of lower 23 inner sidewall of needle stand frustum.
In order to improve the sealing effect between connector inner cylinder 52 and lower check valve 3,52 lower end of connector inner cylinder is opened
Mouth is tubaeform to match with lower check valve 3.
In order to be firmly fixed to upper check valve 6 on connector inner cylinder 52, in 52 lateral wall of connector inner cylinder
Upper end is equipped with annular groove, and upper check valve 6 is set in annular groove.In this way injection pressure can only make 6 outer circle of check valve with
Gap between connector annular surface 53 is opened, and is fallen off from connector inner cylinder 52 without making entirely to go up check valve 6.
The diameter of 54 lower end of connector through-hole is greater than the diameter of 54 upper end of connector through-hole.
Upper needle stand 7 further includes upper needle stand annular surface 75, the great circle of the inner circle of upper needle stand annular surface 75 and upper needle stand frustum 72
It is connected, the outer circle of upper needle stand annular surface 75 is vertically connected with upper needle stand outer barrel 71.
Circumference uniform distribution is equipped with positioning bar 73 on the lateral wall of steel needle fixing seat 74 and upper needle stand frustum 72.
The course of work of this example:
As shown in figure 5, under the pressure effect of imbibition, upper check valve 6 is closed when filtering exudate syringe feed liquor of the present invention
It closes, the gap between 52 lower end of lower check valve 3 and connector inner cylinder is opened, medical fluid company of entering out of connector inner cylinder 52
The cavity of the lower section of fitting annular surface 53, then enters knit stitch block hole 25 by the groove on lower needle stand frustum 23, then into
Enter in conehead chamber 22.
As shown in fig. 6, under the effect of the pressure, separated between lower check valve 3 and lower needle stand frustum 23 when injecting liquid,
Lower check valve 3 and connector inner cylinder fit closely between 52 lower end, and medical fluid is upward by the groove 24 on lower needle stand frustum 23
Flowing, by filter membrane, under the effect of the pressure, by the connector through-hole 54 on connector annular surface 53, upper check valve 6 with
Gap between connector annular surface 53 is opened, and the medical fluid by filtering is discharged from steel needle 8.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (7)
1. filtering exudate syringe, including syringe and injection needle, it is characterised in that: injection needle includes lower needle stand, places an order
To valve, filter membrane, connector, upper check valve, upper needle stand and the steel needle being fixed on upper needle stand, lower needle stand include conehead chamber, under
Needle stand frustum and lower needle stand outer barrel, conehead chamber are connected with syringe conehead, and the small end of lower needle stand frustum is connected with conehead chamber,
The big end of lower needle stand frustum is connected with lower needle stand outer barrel, and lower needle stand frustum inner sidewall circumference uniform distribution is equipped with multiple grooves；Connection
Part includes connector outer barrel, connector annular surface and connector inner cylinder, the outer circle and connector outer cylinder of connector annular surface
Body is vertically connected, and inner circle and the connector inner cylinder of connector annular surface are vertically connected, and circumference uniform distribution is set on connector annular surface
There are multiple connector through-holes；Lower check valve is the elastic sphere being set in lower needle stand frustum；Upper needle stand includes upper needle stand outer cylinder
Body, upper needle stand frustum and steel needle fixing seat, the great circle of upper needle stand frustum are connected with one end of upper needle stand outer barrel, upper needle stand cone
The roundlet of platform is connected with columnar steel needle fixing seat, and steel needle is arranged in steel needle fixing seat, the outside of connector outer barrel
The inner sidewall of the lower end of wall and lower needle stand outer barrel is interference fitted, the upper end of the lateral wall of connector outer barrel and upper needle stand outer cylinder
The inner sidewall of body is interference fitted, and the sphere diameter of lower check valve is greater than lower needle stand frustum end diameter, and annular filter membrane setting is even
The downside of fitting annular surface, the upside of connector annular surface are equipped with the upper check valve of annular.
2. filtering exudate syringe according to claim 1, it is characterised in that: the length of groove is equal in lower needle stand frustum
The length of side wall.
3. filtering exudate syringe according to claim 2, it is characterised in that: connector inner cylinder lower ending opening is under
Check valve matches tubaeform.
4. filtering exudate syringe according to claim 1 to 3, it is characterised in that: on the outside of connector inner cylinder
The upper end of wall is equipped with annular groove, and upper check valve is set in annular groove.
5. filtering exudate syringe according to claim 4, it is characterised in that: the diameter of connector through-hole lower end, which is greater than, to be connected
The diameter of fitting through-hole upper end.
6. filtering exudate syringe according to claim 5, it is characterised in that: upper needle stand further includes upper needle stand annular surface,
The inner circle of upper needle stand annular surface is connected with the great circle of upper needle stand frustum, and the outer circle of upper needle stand annular surface and upper needle stand outer barrel hang down
It is straight to be connected.
7. filtering exudate syringe according to claim 6, it is characterised in that: steel needle fixing seat and upper needle stand frustum it is outer
Circumference uniform distribution is equipped with positioning bar on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541064.7A CN109432549B (en) | 2018-12-17 | 2018-12-17 | Liquid outlet filtering injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541064.7A CN109432549B (en) | 2018-12-17 | 2018-12-17 | Liquid outlet filtering injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109432549A true CN109432549A (en) | 2019-03-08 |
| CN109432549B CN109432549B (en) | 2023-12-29 |
Family
ID=65559907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811541064.7A Active CN109432549B (en) | 2018-12-17 | 2018-12-17 | Liquid outlet filtering injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109432549B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353992A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of dispenser or syringe filter and its filter method |
| CN111568765A (en) * | 2020-05-28 | 2020-08-25 | 蔺淑娟 | Liquid medicine dropping bottle convenient for accurate medicine taking |
| CN113713871A (en) * | 2021-08-26 | 2021-11-30 | 上海安集协康生物技术股份有限公司 | Syringe |
| CN116585795A (en) * | 2023-07-18 | 2023-08-15 | 北京迈瑞达科技有限公司 | Filter membrane filter |
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| US20150065992A1 (en) * | 2013-08-30 | 2015-03-05 | Teleflex Medical Incorporated | Syringe with integral ampule |
| CN104747737A (en) * | 2015-03-25 | 2015-07-01 | 大连碧蓝节能环保科技有限公司 | Film-covered filter element outer flushing valve |
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| CN106390241A (en) * | 2016-10-14 | 2017-02-15 | 山东威高集团医用高分子制品股份有限公司 | Filtering and injection syringe needle |
| CN106668993A (en) * | 2016-10-14 | 2017-05-17 | 山东威高集团医用高分子制品股份有限公司 | Filtering injection needle |
| WO2017164528A1 (en) * | 2016-03-22 | 2017-09-28 | 라용국 | Filter syringe |
| CN210009460U (en) * | 2018-12-17 | 2020-02-04 | 山东威高集团医用高分子制品股份有限公司 | Liquid outlet filtering injector |
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2018
- 2018-12-17 CN CN201811541064.7A patent/CN109432549B/en active Active
Patent Citations (10)
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| CN2675146Y (en) * | 2003-12-15 | 2005-02-02 | 孟荣芹 | Multifunctional pressurization transfusion device |
| CN1997413A (en) * | 2004-04-28 | 2007-07-11 | 瓦索根爱尔兰有限公司 | Multi-outlet medical dispensing device |
| KR101324555B1 (en) * | 2013-03-20 | 2013-11-11 | 주식회사 티에이치엠코리아 | Hub with safety filter for syringe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353992A (en) * | 2019-07-25 | 2019-10-22 | 江苏苏云医疗器材有限公司 | A kind of dispenser or syringe filter and its filter method |
| CN110353992B (en) * | 2019-07-25 | 2024-03-22 | 江苏苏云医疗器材有限公司 | Filter for dispensing device or injector and filtering method thereof |
| CN111568765A (en) * | 2020-05-28 | 2020-08-25 | 蔺淑娟 | Liquid medicine dropping bottle convenient for accurate medicine taking |
| CN113713871A (en) * | 2021-08-26 | 2021-11-30 | 上海安集协康生物技术股份有限公司 | Syringe |
| CN116585795A (en) * | 2023-07-18 | 2023-08-15 | 北京迈瑞达科技有限公司 | Filter membrane filter |
| CN116585795B (en) * | 2023-07-18 | 2023-09-26 | 北京迈瑞达科技有限公司 | Filter membrane filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109432549B (en) | 2023-12-29 |
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