IT1235504B - Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano. - Google Patents

Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano.

Info

Publication number
IT1235504B
IT1235504B IT8984971A IT8497189A IT1235504B IT 1235504 B IT1235504 B IT 1235504B IT 8984971 A IT8984971 A IT 8984971A IT 8497189 A IT8497189 A IT 8497189A IT 1235504 B IT1235504 B IT 1235504B
Authority
IT
Italy
Prior art keywords
self
ventricular
cephalorachidiano
derivations
liquor
Prior art date
Application number
IT8984971A
Other languages
English (en)
Other versions
IT8984971A0 (it
Inventor
Claudio Rancani
Original Assignee
Istituto Di Fotografia Biomedi
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 Istituto Di Fotografia Biomedi filed Critical Istituto Di Fotografia Biomedi
Priority to IT8984971A priority Critical patent/IT1235504B/it
Publication of IT8984971A0 publication Critical patent/IT8984971A0/it
Priority to US07/559,172 priority patent/US5054518A/en
Priority to CA002022142A priority patent/CA2022142A1/en
Priority to DE69007906T priority patent/DE69007906T2/de
Priority to AT90830364T priority patent/ATE103821T1/de
Priority to JP2206674A priority patent/JPH03251256A/ja
Priority to EP90830364A priority patent/EP0414649B1/en
Application granted granted Critical
Publication of IT1235504B publication Critical patent/IT1235504B/it

Links

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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7866—Plural seating
    • Y10T137/7867—Sequential
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7925—Piston-type valves
IT8984971A 1989-08-04 1989-08-04 Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano. IT1235504B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT8984971A IT1235504B (it) 1989-08-04 1989-08-04 Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano.
US07/559,172 US5054518A (en) 1989-08-04 1990-07-27 Variable flow self-cleaning valve preferably for ventricular offtake branches of cephalorachidian fluid
CA002022142A CA2022142A1 (en) 1989-08-04 1990-07-27 Variable flow self-cleaning valve preferably for ventricular offtake branches of cephalorachidian fluid
DE69007906T DE69007906T2 (de) 1989-08-04 1990-08-02 Selbstreinigendes Ventil mit variablem Durchfluss.
AT90830364T ATE103821T1 (de) 1989-08-04 1990-08-02 Selbstreinigendes ventil mit variablem durchfluss.
JP2206674A JPH03251256A (ja) 1989-08-04 1990-08-02 脳脊髄液の側副路用自己洗浄式流量可変バルブ
EP90830364A EP0414649B1 (en) 1989-08-04 1990-08-02 Variable flow self-cleaning valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8984971A IT1235504B (it) 1989-08-04 1989-08-04 Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano.

Publications (2)

Publication Number Publication Date
IT8984971A0 IT8984971A0 (it) 1989-08-04
IT1235504B true IT1235504B (it) 1992-09-05

Family

ID=11326674

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8984971A IT1235504B (it) 1989-08-04 1989-08-04 Valvola a flusso variabile autoripulente preferibilmente per derivazioni ventricolari di liquor cefalorachidiano.

Country Status (7)

Country Link
US (1) US5054518A (it)
EP (1) EP0414649B1 (it)
JP (1) JPH03251256A (it)
AT (1) ATE103821T1 (it)
CA (1) CA2022142A1 (it)
DE (1) DE69007906T2 (it)
IT (1) IT1235504B (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL110288A0 (en) * 1994-07-12 1994-10-21 Bron Dan Self-cleaning inlet head for a fluid
FR2732742B1 (fr) * 1995-04-07 1997-05-30 Valois Ensemble de clapet d'admission.
US6126628A (en) * 1997-04-22 2000-10-03 Johnson & Johnson Professional, Inc. Fluid flow limiting device
US5918628A (en) * 1997-06-17 1999-07-06 Parker-Hannifin Corporation Multi-stage check valve
US5928182A (en) * 1997-07-02 1999-07-27 Johnson & Johnson Professional, Inc. Pediatric programmable hydrocephalus valve
US20020198551A1 (en) * 1999-11-16 2002-12-26 Grant Kevin Lee Endoscopic tissue separator surgical device
JP2001241560A (ja) * 2000-02-29 2001-09-07 Aisin Seiki Co Ltd オイルポンプのリリーフ弁構造
JP3643311B2 (ja) * 2000-03-03 2005-04-27 本田技研工業株式会社 リリーフ弁構造
US9694166B2 (en) 2002-03-26 2017-07-04 Medtronics Ps Medical, Inc. Method of draining cerebrospinal fluid
DE102008030942A1 (de) 2008-07-02 2010-01-07 Christoph Miethke Gmbh & Co Kg Hirnwasserdrainagen
DE102009009880A1 (de) * 2009-02-20 2010-10-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ventil zum Einsatz in einer Leitung zum Führen einer Flüssigkeit
EP2253352A1 (en) * 2009-05-21 2010-11-24 Debiotech S.A. Passive fluid flow regulator
WO2011145753A1 (ko) * 2010-05-17 2011-11-24 볼보 컨스트럭션 이큅먼트 에이비 압력제어밸브
TR201901383T4 (tr) * 2015-06-29 2019-02-21 Kci Licensing Inc Negatif basınçlı terapi ve irigasyona yönelik aparat.
US9857017B2 (en) * 2015-10-30 2018-01-02 Akron Brass Company Debris diverting inlet
DE102018133691A1 (de) 2018-12-28 2020-07-02 Andreas Spiegelberg Ventil zum dauerhaften Implantieren, insbesondere zur Behandlung der Normaldruck-Hydrozephalus-Erkrankung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US764642A (en) * 1903-07-21 1904-07-12 Alfred Stenwall Check-valve.
US1292613A (en) * 1916-06-23 1919-01-28 Non Explosive Device Co Inc Device for preventing backfiring.
US2005813A (en) * 1934-05-23 1935-06-25 Thorvald L Thorsen Pressure reducing valve
US2977804A (en) * 1954-11-15 1961-04-04 Sperry Gyroscope Co Ltd Position indicating navigation systems
US3092133A (en) * 1959-11-09 1963-06-04 Arkla Ind Fluid regulating valve
US3122162A (en) * 1963-06-20 1964-02-25 Asa D Sands Flow control device
US3366138A (en) * 1964-09-15 1968-01-30 Clifford P. Graham Valve means
CH496445A (de) * 1969-07-15 1970-09-30 Kuffer Francois Rückschlagventil zum Ableiten des Liquors in das Gefässsystem oder eine Körperhöhle zur Behandlung des Hydrocephalus internus et externus
US3752183A (en) * 1971-12-02 1973-08-14 Griswold Controls Flow valve having tapered cup
US4675003A (en) * 1985-12-23 1987-06-23 Cordis Corporation Three stage pressure regulator valve
US4682625A (en) * 1986-08-04 1987-07-28 Christopher Gilman G Springloaded shutoff valve apparatus

Also Published As

Publication number Publication date
EP0414649A2 (en) 1991-02-27
DE69007906T2 (de) 1994-10-20
DE69007906D1 (de) 1994-05-11
ATE103821T1 (de) 1994-04-15
EP0414649B1 (en) 1994-04-06
IT8984971A0 (it) 1989-08-04
JPH03251256A (ja) 1991-11-08
US5054518A (en) 1991-10-08
EP0414649A3 (en) 1991-04-03
CA2022142A1 (en) 1991-02-05

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960809