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SG11202105391SA - Catheterization method and apparatus - Google Patents

Catheterization method and apparatus

Info

Publication number
SG11202105391SA
SG11202105391SA SG11202105391SA SG11202105391SA SG11202105391SA SG 11202105391S A SG11202105391S A SG 11202105391SA SG 11202105391S A SG11202105391S A SG 11202105391SA SG 11202105391S A SG11202105391S A SG 11202105391SA SG 11202105391S A SG11202105391S A SG 11202105391SA
Authority
SG
Singapore
Prior art keywords
catheterization method
catheterization
Prior art date
Application number
SG11202105391SA
Inventor
Gregory Tyler
Thanh Huy Le
Tam Van Nguyen
Daniel Montoya
Grant Stearns
Eric Dixon
Original Assignee
Edwards Lifesciences Corp
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 Edwards Lifesciences Corp filed Critical Edwards Lifesciences Corp
Publication of SG11202105391SA publication Critical patent/SG11202105391SA/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021Measuring pressure in heart or blood vessels
    • A61B5/0215Measuring pressure in heart or blood vessels by means inserted into the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/00234Surgical instruments, devices or methods for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/14503Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852Catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6867Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
    • A61B5/6869Heart
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427Devices for manipulating or deploying heart valves during implantation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2442Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
    • A61F2/2466Delivery devices therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133Tip steering devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/00234Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00238Type of minimally invasive operation
    • A61B2017/00243Type of minimally invasive operation cardiac
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/00535Surgical instruments, devices or methods pneumatically or hydraulically operated
    • A61B2017/00561Surgical instruments, devices or methods pneumatically or hydraulically operated creating a vacuum
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M2025/0001Catheters; Hollow probes for pressure measurement
    • A61M2025/0002Catheters; Hollow probes for pressure measurement with a pressure sensor at the distal end
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M2025/0019Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0023Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
    • A61M25/0026Multi-lumen catheters with stationary elements
    • A61M2025/0034Multi-lumen catheters with stationary elements characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2230/00Measuring parameters of the user
    • A61M2230/04Heartbeat characteristics, e.g. ECG, blood pressure modulation

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physiology (AREA)
  • Optics & Photonics (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Prostheses (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • External Artificial Organs (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
SG11202105391SA 2018-11-29 2019-11-25 Catheterization method and apparatus SG11202105391SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862772735P 2018-11-29 2018-11-29
PCT/US2019/062977 WO2020112622A1 (en) 2018-11-29 2019-11-25 Catheterization method and apparatus

Publications (1)

Publication Number Publication Date
SG11202105391SA true SG11202105391SA (en) 2021-06-29

Family

ID=68944406

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202105391SA SG11202105391SA (en) 2018-11-29 2019-11-25 Catheterization method and apparatus

Country Status (11)

Country Link
US (1) US20210259835A1 (en)
EP (2) EP3886688B1 (en)
JP (2) JP2022510974A (en)
KR (1) KR20210096173A (en)
CN (2) CN119097291A (en)
AU (1) AU2019388851B2 (en)
CA (1) CA3120859A1 (en)
CR (1) CR20210312A (en)
ES (1) ES2989492T3 (en)
SG (1) SG11202105391SA (en)
WO (1) WO2020112622A1 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8449599B2 (en) 2009-12-04 2013-05-28 Edwards Lifesciences Corporation Prosthetic valve for replacing mitral valve
US8870950B2 (en) 2009-12-08 2014-10-28 Mitral Tech Ltd. Rotation-based anchoring of an implant
WO2011111047A2 (en) 2010-03-10 2011-09-15 Mitraltech Ltd. Prosthetic mitral valve with tissue anchors
US9763657B2 (en) 2010-07-21 2017-09-19 Mitraltech Ltd. Techniques for percutaneous mitral valve replacement and sealing
US11653910B2 (en) 2010-07-21 2023-05-23 Cardiovalve Ltd. Helical anchor implantation
EP2723274B1 (en) 2011-06-23 2017-12-27 Valtech Cardio, Ltd. Closure element for use with annuloplasty structure
WO2013021374A2 (en) 2011-08-05 2013-02-14 Mitraltech Ltd. Techniques for percutaneous mitral valve replacement and sealing
US8852272B2 (en) 2011-08-05 2014-10-07 Mitraltech Ltd. Techniques for percutaneous mitral valve replacement and sealing
WO2013021375A2 (en) 2011-08-05 2013-02-14 Mitraltech Ltd. Percutaneous mitral valve replacement and sealing
US20150351906A1 (en) 2013-01-24 2015-12-10 Mitraltech Ltd. Ventricularly-anchored prosthetic valves
US9439763B2 (en) 2013-02-04 2016-09-13 Edwards Lifesciences Corporation Prosthetic valve for replacing mitral valve
US9622863B2 (en) 2013-11-22 2017-04-18 Edwards Lifesciences Corporation Aortic insufficiency repair device and method
EP3174502B1 (en) 2014-07-30 2022-04-06 Cardiovalve Ltd Apparatus for implantation of an articulatable prosthetic valve
CN111437068B (en) 2014-12-04 2023-01-17 爱德华兹生命科学公司 Percutaneous clamp for repairing heart valve
CA2973940C (en) 2015-02-05 2022-08-23 Mitraltech Ltd. Prosthetic valve with axially-sliding frames
US9974651B2 (en) 2015-02-05 2018-05-22 Mitral Tech Ltd. Prosthetic valve with axially-sliding frames
US10517726B2 (en) 2015-05-14 2019-12-31 Edwards Lifesciences Corporation Heart valve sealing devices and delivery devices therefor
US10531866B2 (en) 2016-02-16 2020-01-14 Cardiovalve Ltd. Techniques for providing a replacement valve and transseptal communication
US11219746B2 (en) 2016-03-21 2022-01-11 Edwards Lifesciences Corporation Multi-direction steerable handles for steering catheters
US10799675B2 (en) 2016-03-21 2020-10-13 Edwards Lifesciences Corporation Cam controlled multi-direction steerable handles
EP3490444B1 (en) * 2016-07-28 2023-06-07 Evalve, Inc. Systems and methods for intra-procedural cardiac pressure monitoring
GB201613219D0 (en) 2016-08-01 2016-09-14 Mitraltech Ltd Minimally-invasive delivery systems
EP3496664B1 (en) 2016-08-10 2021-09-29 Cardiovalve Ltd Prosthetic valve with concentric frames
US10653862B2 (en) 2016-11-07 2020-05-19 Edwards Lifesciences Corporation Apparatus for the introduction and manipulation of multiple telescoping catheters
US10905554B2 (en) 2017-01-05 2021-02-02 Edwards Lifesciences Corporation Heart valve coaptation device
US11224511B2 (en) 2017-04-18 2022-01-18 Edwards Lifesciences Corporation Heart valve sealing devices and delivery devices therefor
EP4193966B1 (en) 2017-04-18 2024-06-26 Edwards Lifesciences Corporation Heart valve sealing devices and delivery devices therefor
US10799312B2 (en) 2017-04-28 2020-10-13 Edwards Lifesciences Corporation Medical device stabilizing apparatus and method of use
US10959846B2 (en) 2017-05-10 2021-03-30 Edwards Lifesciences Corporation Mitral valve spacer device
US10888421B2 (en) 2017-09-19 2021-01-12 Cardiovalve Ltd. Prosthetic heart valve with pouch
US12064347B2 (en) 2017-08-03 2024-08-20 Cardiovalve Ltd. Prosthetic heart valve
US11793633B2 (en) 2017-08-03 2023-10-24 Cardiovalve Ltd. Prosthetic heart valve
US11051940B2 (en) 2017-09-07 2021-07-06 Edwards Lifesciences Corporation Prosthetic spacer device for heart valve
US11337803B2 (en) 2017-09-19 2022-05-24 Cardiovalve Ltd. Prosthetic valve with inner and outer frames connected at a location of tissue anchor portion
US11110251B2 (en) 2017-09-19 2021-09-07 Edwards Lifesciences Corporation Multi-direction steerable handles for steering catheters
US9895226B1 (en) 2017-10-19 2018-02-20 Mitral Tech Ltd. Techniques for use with prosthetic valve leaflets
US10231837B1 (en) 2018-01-09 2019-03-19 Edwards Lifesciences Corporation Native valve repair devices and procedures
US10136993B1 (en) 2018-01-09 2018-11-27 Edwards Lifesciences Corporation Native valve repair devices and procedures
US10245144B1 (en) 2018-01-09 2019-04-02 Edwards Lifesciences Corporation Native valve repair devices and procedures
US10111751B1 (en) 2018-01-09 2018-10-30 Edwards Lifesciences Corporation Native valve repair devices and procedures
MX2020005397A (en) 2018-01-09 2020-08-17 Edwards Lifesciences Corp DEVICES AND PROCEDURES FOR REPAIR OF NATIVE VALVES.
US10123873B1 (en) 2018-01-09 2018-11-13 Edwards Lifesciences Corporation Native valve repair devices and procedures
GB201800399D0 (en) 2018-01-10 2018-02-21 Mitraltech Ltd Temperature-control during crimping of an implant
US11389297B2 (en) 2018-04-12 2022-07-19 Edwards Lifesciences Corporation Mitral valve spacer device
US11207181B2 (en) 2018-04-18 2021-12-28 Edwards Lifesciences Corporation Heart valve sealing devices and delivery devices therefor
US10779946B2 (en) 2018-09-17 2020-09-22 Cardiovalve Ltd. Leaflet-testing apparatus
CN112789078B (en) 2018-09-28 2023-06-27 弗洛医药有限公司 Catheter apparatus
US10945844B2 (en) 2018-10-10 2021-03-16 Edwards Lifesciences Corporation Heart valve sealing devices and delivery devices therefor
GB201901887D0 (en) 2019-02-11 2019-04-03 Cardiovalve Ltd Device for conditioning ex vivo pericardial tissue
BR122021018592A2 (en) 2019-02-14 2021-10-13 Edwards Lifesciences Corporation VALVE REPAIR DEVICE CLOSING TO REPAIR A PATIENT'S NATIVE VALVE
EP4329673A2 (en) 2021-04-28 2024-03-06 Edwards Lifesciences Corporation Delivery devices for heart valve treatment devices
AU2023213576A1 (en) 2022-01-26 2024-07-18 Edwards Lifesciences Corporation Delivery devices for heart valve repair and replacement devices
WO2024121770A1 (en) 2022-12-08 2024-06-13 Edwards Lifesciences Innovation (Israel) Ltd. Annuloplasty implants and systems for use therewith

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645496A (en) * 1986-01-09 1987-02-24 Rao Medical Devices, Inc. Continuous catheter flushing flow control device
JP2001046509A (en) * 1999-06-03 2001-02-20 Takashi Ueno Catheter introducer
US20020128611A1 (en) * 2000-12-01 2002-09-12 Naji Kandalaft Fluid delivery apparatus
DE102007003690B4 (en) * 2007-01-25 2009-05-14 Iprm Intellectual Property Rights Management Ag Multi-function valve
JP5520298B2 (en) * 2008-07-29 2014-06-11 ケアフュージョン207インコーポレイテッド Closed suction catheter adapter with sink device
US8715300B2 (en) * 2009-12-05 2014-05-06 Integrated Sensing Systems, Inc. Delivery system, method, and anchor for medical implant placement
CN103237571A (en) * 2011-02-25 2013-08-07 泰尔茂株式会社 Medical connector
WO2012162677A1 (en) 2011-05-25 2012-11-29 Access Scientific, Inc. Access device
CN105705108B (en) 2013-11-01 2017-12-01 C2治疗公司 Low temperature sacculus ablation system
US10244951B2 (en) * 2014-06-10 2019-04-02 Acist Medical Systems, Inc. Physiological sensor delivery device and method
JP2016152841A (en) 2015-02-20 2016-08-25 日本ゼオン株式会社 Sheath hub and sheath introducer
EP3270825B1 (en) * 2015-03-20 2020-04-22 JenaValve Technology, Inc. Heart valve prosthesis delivery system
EP3539509B1 (en) * 2015-06-01 2021-07-07 Edwards Lifesciences Corporation Cardiac valve repair devices configured for percutaneous delivery
EP3490444B1 (en) * 2016-07-28 2023-06-07 Evalve, Inc. Systems and methods for intra-procedural cardiac pressure monitoring
US10751485B2 (en) * 2016-08-29 2020-08-25 Cephea Valve Technologies, Inc. Methods, systems, and devices for sealing and flushing a delivery system

Also Published As

Publication number Publication date
EP4233698A3 (en) 2023-10-25
ES2989492T3 (en) 2024-11-26
AU2019388851B2 (en) 2024-12-05
CN113271842B (en) 2024-10-01
CR20210312A (en) 2021-09-14
EP4233698A2 (en) 2023-08-30
WO2020112622A1 (en) 2020-06-04
JP2023171498A (en) 2023-12-01
JP7611337B2 (en) 2025-01-09
JP2022510974A (en) 2022-01-28
CN113271842A (en) 2021-08-17
CN119097291A (en) 2024-12-10
EP3886688B1 (en) 2024-08-07
US20210259835A1 (en) 2021-08-26
KR20210096173A (en) 2021-08-04
EP3886688A1 (en) 2021-10-06
CA3120859A1 (en) 2020-06-04
AU2019388851A1 (en) 2021-06-03

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