JP7483733B2 - カテーテル - Google Patents
カテーテル Download PDFInfo
- Publication number
- JP7483733B2 JP7483733B2 JP2021548751A JP2021548751A JP7483733B2 JP 7483733 B2 JP7483733 B2 JP 7483733B2 JP 2021548751 A JP2021548751 A JP 2021548751A JP 2021548751 A JP2021548751 A JP 2021548751A JP 7483733 B2 JP7483733 B2 JP 7483733B2
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- Prior art keywords
- tip
- catheter
- tip member
- outer tube
- tube
- 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.)
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Links
- 239000012530 fluid Substances 0.000 claims description 30
- 230000010412 perfusion Effects 0.000 claims description 22
- 230000003902 lesion Effects 0.000 claims description 10
- 230000002262 irrigation Effects 0.000 claims description 6
- 238000003973 irrigation Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 210000003101 oviduct Anatomy 0.000 description 41
- -1 polyethylene Polymers 0.000 description 7
- 238000000605 extraction Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000036262 stenosis Effects 0.000 description 2
- 208000037804 stenosis Diseases 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 210000000013 bile duct Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
Images
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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/01—Guiding arrangements therefore
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/303—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the vagina, i.e. vaginoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/42—Gynaecological or obstetrical instruments or methods
-
- 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
- A61M25/00—Catheters; Hollow probes
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/0039—Multi-lumen catheters with stationary elements characterized by lumina being arranged coaxially
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
- A61M2025/0046—Coatings for improving slidability
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Gynecology & Obstetrics (AREA)
- Reproductive Health (AREA)
- Pregnancy & Childbirth (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
Claims (9)
- 可撓性を有する外管と、前記外管に対して軸線方向に移動可能なように前記外管の内腔に配設された内管とを備えたカテーテルであって、
前記外管に対して接続されていない状態で前記内管の先端部に接続された可撓性を有する管状の先端部材を備え、
前記先端部材は、当該先端部材の内腔に内視鏡を挿入した状態で前記内管を前記外管に対して先端方向に押込むことによって、前記内視鏡に支持されない状態で前記外管の先端開口から先端方向に突出することが可能な特性を有し、
前記先端部材は、
前記内視鏡が挿入される管状部と、
前記管状部の先端の開口部を覆う先端壁部と、を有する、カテーテル。 - 請求項1記載のカテーテルであって、
前記先端部材は、先端方向の突出に伴って前記内視鏡に支持されない状態で生体管の閉塞部又は狭窄部である病変部を押し広げることが可能な特性を有する、カテーテル。 - 請求項1又は2に記載のカテーテルであって、
前記特性は、前記先端部材の剛性である、カテーテル。 - 請求項3記載のカテーテルであって、
前記先端部材のショアD硬度は、30以上である、カテーテル。 - 請求項1~4のいずれか1項に記載のカテーテルであって、
前記先端部材の前記内腔には、灌流液が流通し、
前記先端壁部には、前記灌流液を前記先端部材の外側に流出させるための流出孔が貫通形成されているカテーテル。 - 請求項5記載のカテーテルであって、
前記流出孔は、前記先端部材の軸線上に位置している、カテーテル。 - 請求項5又は6に記載のカテーテルであって、
前記流出孔の径は、0.6mm未満である、カテーテル。 - 請求項5~7のいずれか1項に記載のカテーテルであって、
前記外管と前記先端部材との間には、前記流出孔から前記先端部材の外側に流出した前記灌流液を吸引するための外側空間が形成されている、カテーテル。 - 請求項1~8のいずれか1項に記載のカテーテルであって、
前記先端部材の外面には、潤滑膜が設けられている、カテーテル。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019175374 | 2019-09-26 | ||
JP2019175374 | 2019-09-26 | ||
PCT/JP2020/033717 WO2021059935A1 (ja) | 2019-09-26 | 2020-09-07 | カテーテル |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2021059935A1 JPWO2021059935A1 (ja) | 2021-04-01 |
JP7483733B2 true JP7483733B2 (ja) | 2024-05-15 |
Family
ID=75165696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021548751A Active JP7483733B2 (ja) | 2019-09-26 | 2020-09-07 | カテーテル |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7483733B2 (ja) |
CN (1) | CN114144221B (ja) |
WO (1) | WO2021059935A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007097648A (ja) | 2005-09-30 | 2007-04-19 | Olympus Medical Systems Corp | 内視鏡挿入補助具及び内視鏡装置 |
JP2012010880A (ja) | 2010-06-30 | 2012-01-19 | Terumo Corp | 医療用装置 |
JP2012157606A (ja) | 2011-02-02 | 2012-08-23 | Olympus Business Creation Corp | カテーテルおよび薬剤投与装置 |
JP2012513869A5 (ja) | 2009-12-18 | 2013-01-31 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3921108B2 (ja) * | 2002-03-19 | 2007-05-30 | テルモ株式会社 | バルーンカテーテル |
US8486100B2 (en) * | 2007-12-18 | 2013-07-16 | Sumitomo Bakelite Co., Ltd. | Guide tube having balloons for puncture |
US8419677B2 (en) | 2008-12-30 | 2013-04-16 | Cook Medical Technologies, LLC | Balloon-tipped endoscopic system |
WO2016143556A1 (ja) * | 2015-03-06 | 2016-09-15 | 日本ゼオン株式会社 | 内視鏡用処置具 |
WO2017086312A1 (ja) * | 2015-11-20 | 2017-05-26 | オリンパス株式会社 | 内視鏡システム |
-
2020
- 2020-09-07 CN CN202080052566.2A patent/CN114144221B/zh active Active
- 2020-09-07 WO PCT/JP2020/033717 patent/WO2021059935A1/ja active Application Filing
- 2020-09-07 JP JP2021548751A patent/JP7483733B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007097648A (ja) | 2005-09-30 | 2007-04-19 | Olympus Medical Systems Corp | 内視鏡挿入補助具及び内視鏡装置 |
JP2012513869A5 (ja) | 2009-12-18 | 2013-01-31 | ||
JP2012010880A (ja) | 2010-06-30 | 2012-01-19 | Terumo Corp | 医療用装置 |
JP2012157606A (ja) | 2011-02-02 | 2012-08-23 | Olympus Business Creation Corp | カテーテルおよび薬剤投与装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2021059935A1 (ja) | 2021-04-01 |
JPWO2021059935A1 (ja) | 2021-04-01 |
CN114144221A (zh) | 2022-03-04 |
CN114144221B (zh) | 2023-12-26 |
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