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 plunger

Info

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
Application number
Other languages
Italian (it)
Inventor
Gianni Guala
Original Assignee
Borla Ind
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Borla Ind filed Critical Borla Ind
Priority to IT99TO001093 priority Critical patent/IT1308672B1/en
Publication of ITTO991093A0 publication Critical patent/ITTO991093A0/en
Priority to ES00830725T priority patent/ES2191604T3/en
Priority to EP20000830725 priority patent/EP1099456B1/en
Priority to DE60001347T priority patent/DE60001347T2/en
Priority to AT00830725T priority patent/ATE232123T1/en
Priority to US09/706,119 priority patent/US6537258B1/en
Publication of ITTO991093A1 publication Critical patent/ITTO991093A1/en
Priority to HK01105553A priority patent/HK1036763A1/en
Application granted granted Critical
Publication of IT1308672B1 publication Critical patent/IT1308672B1/en

Links

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).
IT99TO001093 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 IT1308672B1 (en)

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)

Also Published As

Publication number Publication date
ITTO991093A1 (en) 2001-06-14
ITTO991093A0 (en) 1999-12-14

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