IT1308672B1 - Check valve for a medical infusion valve, has an elastically deformable material diaphragm acting as a fluid seal in combination with an annular valve seat, and cooperating with an axially sliding plunger - Google Patents
Check valve for a medical infusion valve, has an elastically deformable material diaphragm acting as a fluid seal in combination with an annular valve seat, and cooperating with an axially sliding plungerInfo
- Publication number
- IT1308672B1 IT1308672B1 ITTO991093A IT1308672B1 IT 1308672 B1 IT1308672 B1 IT 1308672B1 IT TO991093 A ITTO991093 A IT TO991093A IT 1308672 B1 IT1308672 B1 IT 1308672B1
- Authority
- IT
- Italy
- Prior art keywords
- valve
- cooperating
- plunger
- combination
- elastically deformable
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title abstract 2
- 238000001802 infusion Methods 0.000 title 1
- 239000000463 material Substances 0.000 title 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 2
- 239000013013 elastic material Substances 0.000 abstract 1
- 230000002269 spontaneous effect Effects 0.000 abstract 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The check valve has an axial upstream and downstream passageways (6,14), staggered and parallel with respect to each other, and an elastic material diaphragm (18) cooperating with an annular valve seat (25) for normally keeping communication between these passageways closed. The diaphragm has an end wall (18) of a cup-shaped element (17) on which a plunger (9) rests coaxially, the plunger (9) sliding between retracted inoperative, and advanced operative positions. Valve opening occurs following flexion of the diaphragm (18), which can be spontaneous due to a predetermined fluid pressure in the upstream passageway (6), or positively operated via the plunger (9).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT99TO001093 IT1308672B1 (en) | 1999-12-14 | 1999-12-14 | Check valve for a medical infusion valve, has an elastically deformable material diaphragm acting as a fluid seal in combination with an annular valve seat, and cooperating with an axially sliding plunger |
ES00830725T ES2191604T3 (en) | 1999-11-12 | 2000-10-31 | RETENTION VALVE FOR INFUSION LINES FOR MEDICAL AND SIMILAR USE. |
EP20000830725 EP1099456B1 (en) | 1999-11-12 | 2000-10-31 | Check valve for medical infusion lines and the like |
DE60001347T DE60001347T2 (en) | 1999-11-12 | 2000-10-31 | Check valve for medical infusion lines and the like |
AT00830725T ATE232123T1 (en) | 1999-11-12 | 2000-10-31 | CHECK VALVE FOR MEDICAL INFUSION LINES AND THE LIKE |
US09/706,119 US6537258B1 (en) | 1999-11-12 | 2000-11-03 | Valve for medical infusion lines and the like |
HK01105553A HK1036763A1 (en) | 1999-11-12 | 2001-08-10 | Check valve for medical infusion lines and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT99TO001093 IT1308672B1 (en) | 1999-12-14 | 1999-12-14 | Check valve for a medical infusion valve, has an elastically deformable material diaphragm acting as a fluid seal in combination with an annular valve seat, and cooperating with an axially sliding plunger |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO991093A0 ITTO991093A0 (en) | 1999-12-14 |
ITTO991093A1 ITTO991093A1 (en) | 2001-06-14 |
IT1308672B1 true IT1308672B1 (en) | 2002-01-09 |
Family
ID=11418291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT99TO001093 IT1308672B1 (en) | 1999-11-12 | 1999-12-14 | Check valve for a medical infusion valve, has an elastically deformable material diaphragm acting as a fluid seal in combination with an annular valve seat, and cooperating with an axially sliding plunger |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1308672B1 (en) |
-
1999
- 1999-12-14 IT IT99TO001093 patent/IT1308672B1/en active
Also Published As
Publication number | Publication date |
---|---|
ITTO991093A1 (en) | 2001-06-14 |
ITTO991093A0 (en) | 1999-12-14 |
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