JP4339682B2 - 逆流防止バルブ - Google Patents
逆流防止バルブ Download PDFInfo
- Publication number
- JP4339682B2 JP4339682B2 JP2003522617A JP2003522617A JP4339682B2 JP 4339682 B2 JP4339682 B2 JP 4339682B2 JP 2003522617 A JP2003522617 A JP 2003522617A JP 2003522617 A JP2003522617 A JP 2003522617A JP 4339682 B2 JP4339682 B2 JP 4339682B2
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- valve
- sock
- backflow prevention
- chamber
- 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
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
- A61M2039/266—Valves closing automatically on disconnecting the line and opening on reconnection thereof where the valve comprises venting channels, e.g. to insure better connection, to help decreasing the fluid space upon disconnection, or to help the fluid space to remain the same during disconnection
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S604/00—Surgery
- Y10S604/905—Aseptic connectors or couplings, e.g. frangible, piercable
Description
1.入口および出口と、
2.入口から出口へバルブアセンブリーを通して延びる流路と、
3.プランジャーであって流路内に配置されかつ流体が入口から出口へ流れ得る前方開放位置と、流体の入口から出口への流れが阻止される引込められた閉鎖位置との間で可動であり、前方部分を有するプランジャーと、
4.少なくとも部分的に弾力性のあるソックスであってバルブアセンブリーに固着されたアウターエンド、およびプランジャーに噛み合わされたインナー部分を備えてプランジャーの引込み位置から前方位置への往復運動がソックスの少なくとも一部の伸長を起すように構成されたソックスと、および
5.プランジャーとソックスにより区画された壁を有する可変容量チャンバーとを包含し、チャンバーが流路の一部を形成し、チャンバーはプランジャーが引込められた位置にある時により小さいまたはゼロの体積を持ち、かつプランジャーが突出位置にある時により大きい体積を持ち、これによりプランジャーの引込みと同時に、可変容量チャンバーの体積が減少して、流路を通して流体を出口へと送るポンプ動作を起し、このようにして逆流を減しまたは阻止するようにしている。
Claims (14)
- 注射装置で用いる逆流防止バルブであって、
上記バルブが、
入口(10)と出口(11)と、
入口から出口へバルブを通って伸びている第1流路と、
プランジャー(12)であって、上記第1流路内に配置され、且つ、流体が入口から出口へ流れ得る前方開放位置と、流体の入口から出口への流れが阻止される引込み閉鎖位置と、の間で可動であり、且つ、該プランジャーを通って又は該プランジャーに沿って、少なくとも部分的に伸びている液体第2流路(30)を有しており、且つ、前方部分を有している、プランジャーと、
少なくとも部分的に弾力性のあるソックス(14)であって、バルブに固着されたアウターエンド(41)と、プランジャーに噛み合わされたインナー部分(45)と、を有しており、これによって、プランジャーの引込み閉鎖位置から前方開放位置への往復運動がソックスの少なくとも一部を伸長するようになっている、ソックスと、
プランジャーとソックスとによって区画される壁を有する可変容量チャンバー(16)と、
を包含しており、
チャンバーが、上記第1流路の一部を形成し、チャンバーはプランジャーが引込み閉鎖位置にある時により小さいまたはゼロの体積を持ち、且つ、プランジャーが伸長された位置にある時により大きい体積を持つようになっており、これによってプランジャーの引込みと同時に可変容量チャンバーの体積が減少して、流体を、第2流路を通して出口へと送るポンプ動作を起し、これによって逆流を減しまたは阻止するようにした、逆流防止バルブ。 - バルブが、互いに取り付けられる2つの部分で形成されているアウターボデーを備えている、請求項1の逆流防止バルブ。
- 2つの部分の一つが、より小さい直径または断面のアウター通路(19)と、より大きい直径または断面のインナー通路(20)と、を有するトップ部分(17)を包含し、インナー通路が内側チャンバーの一部を形成している、請求項2の逆流防止バルブ。
- アウター通路が、流体ポートを包含する少なくとも1個の長手方向スロットまたは凹部(24)を備えている、請求項3の逆流防止バルブ。
- 2つの部分の他方が、より小さい直径または断面のアウター通路と、より大きい断面または直径のインナー通路を有するベース部分と、を包含しており、且つ、このベース部分もトップ部分により区画された内側チャンバーの一部を形成している、請求項3の逆流防止バルブ。
- 入口から出口へバルブを通して延びかつ内側チャンバーの中央部を通して延びる流体第3流路(24)を有する、請求項5の逆流防止バルブ。
- プランジャーが、弾力性のあるソックスと噛み合うための噛合い手段を有する、請求項1の逆流防止バルブ。
- 噛合い手段が、プランジャー上の環状ステップまたはショルダー部分を包含し、これがプランジャーの前進と同時に弾力性のあるソックスを掴みまたは噛み合う、請求項7の逆流防止バルブ。
- ソックスが、実質的な円形ベース部分(39)と、伸長筒状壁部分(40)と、を有する請求項1の逆流防止バルブ。
- プランジャーが、伸長前方ノーズ部分(13)を有しており、且つ、ソックスの壁部分(40)が、プランジャーの前方ノーズ部分の実質的に周りに延びている、請求項9の逆流防止バルブ。
- 円形ベース部分が、周エッジ(41)を有しており、該周エッジが、バルブアセンブリー内でのプランジャーの動きに対抗して動かないように、保持されている、請求項10の逆流防止バルブ。
- 筒状壁部分が、圧縮可能なものであって、例えば、制御された方法によって壁部分を縮ませることができるようにすることによって、長さを短くできるように構成されているものを含んでいる、請求項11の逆流防止バルブ。
- ソックスが、実質的にデイスク状輪郭を備えている、請求項1の逆流防止バルブ。
- ソックスが、バルブに取り付けられるアウター周エッジおよびプランジャーの前方部分が通過し得る典型的には中央開口である内側開口を備えている、請求項13の逆流防止バルブ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU63598/01A AU765896B2 (en) | 2001-02-23 | 2001-08-23 | A needle free access valve |
AUPR944401 | 2001-12-12 | ||
PCT/AU2002/000861 WO2003018105A1 (en) | 2001-08-23 | 2002-07-01 | A valve for use with a syringe and which prevents backflow |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004538120A JP2004538120A (ja) | 2004-12-24 |
JP4339682B2 true JP4339682B2 (ja) | 2009-10-07 |
Family
ID=25634020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003522617A Expired - Fee Related JP4339682B2 (ja) | 2001-08-23 | 2002-07-01 | 逆流防止バルブ |
Country Status (9)
Country | Link |
---|---|
US (3) | US6991215B2 (ja) |
EP (1) | EP1418978A1 (ja) |
JP (1) | JP4339682B2 (ja) |
CN (1) | CN1230225C (ja) |
AU (1) | AU2002344682B2 (ja) |
BR (1) | BR0209414A (ja) |
CA (1) | CA2444889C (ja) |
NZ (1) | NZ528627A (ja) |
WO (1) | WO2003018105A1 (ja) |
Cited By (3)
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KR102088192B1 (ko) | 2019-08-23 | 2020-04-24 | 주식회사 엔게인 | 역류 방지 장치 |
KR102083480B1 (ko) | 2019-09-27 | 2020-05-26 | 주식회사 엔게인 | 역류 방지 장치 |
KR102171549B1 (ko) | 2020-04-08 | 2020-10-29 | 주식회사 엔게인 | 역류 방지 장치 |
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DE19545421C2 (de) * | 1995-12-06 | 2001-05-10 | Filtertek Bv | Rückschlagventil, insbesondere für die Medizintechnik |
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JP3524452B2 (ja) * | 1999-02-10 | 2004-05-10 | 大研医器株式会社 | 薬液注入装置の逆流規制構造および逆流規制ユニット |
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EP1418978A1 (en) * | 2001-08-23 | 2004-05-19 | Occupational & Medical Innovations Ltd | A valve for use with a syringe and which prevents backflow |
-
2002
- 2002-07-01 EP EP02742512A patent/EP1418978A1/en not_active Withdrawn
- 2002-07-01 US US10/475,530 patent/US6991215B2/en not_active Expired - Fee Related
- 2002-07-01 NZ NZ528627A patent/NZ528627A/en unknown
- 2002-07-01 AU AU2002344682A patent/AU2002344682B2/en not_active Ceased
- 2002-07-01 JP JP2003522617A patent/JP4339682B2/ja not_active Expired - Fee Related
- 2002-07-01 BR BR0209414-2A patent/BR0209414A/pt active Pending
- 2002-07-01 WO PCT/AU2002/000861 patent/WO2003018105A1/en active IP Right Grant
- 2002-07-01 CA CA2444889A patent/CA2444889C/en not_active Expired - Fee Related
- 2002-07-01 CN CNB028128648A patent/CN1230225C/zh not_active Expired - Fee Related
-
2006
- 2006-01-09 US US11/327,395 patent/US20060108555A1/en not_active Abandoned
-
2007
- 2007-06-25 US US11/768,171 patent/US20070246674A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102088192B1 (ko) | 2019-08-23 | 2020-04-24 | 주식회사 엔게인 | 역류 방지 장치 |
US11007314B2 (en) | 2019-08-23 | 2021-05-18 | Engain | Apparatus for preventing backflow |
KR102083480B1 (ko) | 2019-09-27 | 2020-05-26 | 주식회사 엔게인 | 역류 방지 장치 |
KR102171549B1 (ko) | 2020-04-08 | 2020-10-29 | 주식회사 엔게인 | 역류 방지 장치 |
Also Published As
Publication number | Publication date |
---|---|
US20070246674A1 (en) | 2007-10-25 |
CN1520323A (zh) | 2004-08-11 |
EP1418978A1 (en) | 2004-05-19 |
US20040124388A1 (en) | 2004-07-01 |
CA2444889A1 (en) | 2003-03-06 |
CN1230225C (zh) | 2005-12-07 |
CA2444889C (en) | 2012-01-03 |
US20060108555A1 (en) | 2006-05-25 |
NZ528627A (en) | 2004-05-28 |
BR0209414A (pt) | 2004-07-06 |
WO2003018105A1 (en) | 2003-03-06 |
AU2002344682B2 (en) | 2007-02-15 |
JP2004538120A (ja) | 2004-12-24 |
US6991215B2 (en) | 2006-01-31 |
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