CA3009177C - Visually assisted entry of a veress needle with a tapered videoscope for microlaparoscopy - Google Patents

Visually assisted entry of a veress needle with a tapered videoscope for microlaparoscopy Download PDF

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Publication number
CA3009177C
CA3009177C CA3009177A CA3009177A CA3009177C CA 3009177 C CA3009177 C CA 3009177C CA 3009177 A CA3009177 A CA 3009177A CA 3009177 A CA3009177 A CA 3009177A CA 3009177 C CA3009177 C CA 3009177C
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CA
Canada
Prior art keywords
needle
stylet
lumen
distal end
visualization
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.)
Active
Application number
CA3009177A
Other languages
English (en)
French (fr)
Other versions
CA3009177A1 (en
Inventor
Odyssefs Ath. Savvouras
Stephanos Papademetriou
Theofilos Kotseroglou
Ulrich R. Haug
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enable IPC Inc
Original Assignee
Enable IPC Inc
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 Enable IPC Inc filed Critical Enable IPC Inc
Publication of CA3009177A1 publication Critical patent/CA3009177A1/en
Application granted granted Critical
Publication of CA3009177C publication Critical patent/CA3009177C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3474Insufflating needles, e.g. Veress needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00147Holding or positioning arrangements
    • A61B1/00154Holding or positioning arrangements using guiding arrangements for insertion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00163Optical arrangements
    • A61B1/00174Optical arrangements characterised by the viewing angles
    • A61B1/00177Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/012Instruments 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 characterised by internal passages or accessories therefor
    • A61B1/015Control of fluid supply or evacuation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/04Instruments 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 combined with photographic or television appliances
    • A61B1/05Instruments 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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/273Instruments 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 upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3478Endoscopic needles, e.g. for infusion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3403Needle locating or guiding means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3494Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
    • A61B17/3496Protecting sleeves or inner probes; Retractable tips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/00004(bio)absorbable, (bio)resorbable or resorptive
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/0046Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • A61B2017/00473Distal part, e.g. tip or head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36Image-producing devices or illumination devices not otherwise provided for
    • A61B90/361Image-producing devices, e.g. surgical cameras

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Endoscopes (AREA)
  • Surgical Instruments (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Farming Of Fish And Shellfish (AREA)
CA3009177A 2014-11-06 2016-11-04 Visually assisted entry of a veress needle with a tapered videoscope for microlaparoscopy Active CA3009177C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201462076417P 2014-11-06 2014-11-06
US14/935,325 2015-11-06
US14/935,325 US10463399B2 (en) 2014-11-06 2015-11-06 Visually assisted entry of a Veress needle with a tapered videoscope for microlaparoscopy
PCT/US2016/060685 WO2017079662A1 (en) 2014-11-06 2016-11-04 Visually assisted entry of a veress needle with a tapered videoscope for microlaparoscopy

Publications (2)

Publication Number Publication Date
CA3009177A1 CA3009177A1 (en) 2017-05-11
CA3009177C true CA3009177C (en) 2023-01-03

Family

ID=57994332

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3009177A Active CA3009177C (en) 2014-11-06 2016-11-04 Visually assisted entry of a veress needle with a tapered videoscope for microlaparoscopy

Country Status (9)

Country Link
US (4) US10463399B2 (cg-RX-API-DMAC7.html)
EP (1) EP3370632B1 (cg-RX-API-DMAC7.html)
JP (1) JP6980670B2 (cg-RX-API-DMAC7.html)
KR (1) KR102664739B1 (cg-RX-API-DMAC7.html)
CN (1) CN108430356B (cg-RX-API-DMAC7.html)
AU (1) AU2016349495B2 (cg-RX-API-DMAC7.html)
CA (1) CA3009177C (cg-RX-API-DMAC7.html)
ES (1) ES2953466T3 (cg-RX-API-DMAC7.html)
WO (1) WO2017079662A1 (cg-RX-API-DMAC7.html)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100022824A1 (en) 2008-07-22 2010-01-28 Cybulski James S Tissue modification devices and methods of using the same
US20100121139A1 (en) 2008-11-12 2010-05-13 Ouyang Xiaolong Minimally Invasive Imaging Systems
US11547446B2 (en) 2014-01-13 2023-01-10 Trice Medical, Inc. Fully integrated, disposable tissue visualization device
US10342579B2 (en) 2014-01-13 2019-07-09 Trice Medical, Inc. Fully integrated, disposable tissue visualization device
WO2016182946A1 (en) * 2015-05-08 2016-11-17 Samark Technology Llc Imaging needle apparatus
EP3560412B1 (en) 2015-08-11 2020-11-18 Trice Medical, Inc. Fully integrated disposable tissue visualization device
US9829698B2 (en) * 2015-08-31 2017-11-28 Panasonic Corporation Endoscope
WO2017147605A1 (en) * 2016-02-26 2017-08-31 Samark Technology Llc Video needle syringe
WO2018064610A1 (en) * 2016-09-29 2018-04-05 Samark Technology Llc Video needle syringe
WO2018088498A1 (ja) * 2016-11-10 2018-05-17 京セラオプテック株式会社 体腔内観察システム、トロカール装置、及び体腔内観察システムの作動方法
KR101889921B1 (ko) * 2016-12-06 2018-08-21 해성옵틱스(주) 니들형 내시경
US10959756B2 (en) * 2016-12-15 2021-03-30 Ethicon Llc Trocar with reduced profile
JP7208993B2 (ja) * 2017-08-04 2023-01-19 ブリガム アンド ウィメンズ ホスピタル,インク. 照明された案内と安全な特徴とを有するベレス型の針
US11382662B2 (en) * 2017-08-04 2022-07-12 The Brigham And Women's Hospital, Inc. Trocars and veress-type needles with illuminated guidance and safety features
CN110996755B (zh) * 2017-08-17 2023-03-03 270外科有限公司 直径可变的多机位医疗手术照明装置
CN107468315A (zh) * 2017-09-01 2017-12-15 张岳农 一种可视气腹穿刺针
WO2019140099A1 (en) * 2018-01-10 2019-07-18 Chemimage Corporation Time correlated source modulation for endoscopy
WO2019191705A1 (en) 2018-03-29 2019-10-03 Trice Medical, Inc. Fully integrated endoscope with biopsy capabilities and methods of use
CN108392717A (zh) * 2018-04-27 2018-08-14 武汉佑康科技有限公司 一种可视穿刺移动球囊装置
WO2020138091A1 (ja) * 2018-12-28 2020-07-02 Hoya株式会社 内視鏡および内視鏡システム
US11559646B1 (en) * 2019-02-11 2023-01-24 Ali Osman System and method for video assisted percutaneous needle cricothyrotomy and tracheostomy
KR102269721B1 (ko) 2019-08-13 2021-06-28 주식회사 쿼드메디슨 내시경용 마이크로니들 불릿 주입장치
CN110680604A (zh) * 2019-09-18 2020-01-14 浙江省人民医院 一种光纤笛针
DE102020106915A1 (de) * 2020-03-13 2021-09-16 Schott Ag Endoskop und Einweg-Endoskopsystem
AU2021324569A1 (en) * 2020-08-13 2023-02-23 Arthrex, Inc. Endoscopic instrument
US20220151687A1 (en) * 2020-11-19 2022-05-19 Baylis Medical Company Inc. System of medical devices and method for pericardial puncture
JP2024509487A (ja) * 2021-01-19 2024-03-01 アイ. エイナーソン,ジョン 照明された案内と安全な特徴とを有するトロカール及びベレス型の針
CA3206011A1 (en) * 2021-02-12 2022-08-18 Northgate Technologies, Inc. Laparoscopic access device with real-time measurements
GR1010162B (el) * 2021-03-29 2022-01-19 Ιωαννης Κομνηνου Χατζηπαπας Λαπαροσκοπικη διαταξη και χρηση αυτης σε μεθοδο λαπαροσκοπικης επεμβασης
KR102590881B1 (ko) * 2021-03-31 2023-10-19 계명대학교 산학협력단 소아복막외 탈장교정술용 투관침 및 그 이용 방법
US20240090922A1 (en) * 2021-05-05 2024-03-21 Intravu Inc. Miniature Angle-View Endoscope with Image Orientation Correction
CN113598970B (zh) * 2021-08-20 2024-02-02 重庆市人民医院 一种单孔腹腔镜手术用防刺伤循环排烟装置及排烟方法
WO2025038798A1 (en) * 2023-08-16 2025-02-20 National Yang Ming Chiao Tung University Insufflation needle assembly and method of insufflating a body cavity by using same

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816909A (en) 1986-12-17 1989-03-28 Olympus Optical Co., Ltd. Video endoscope system for use with different sizes of solid state devices
US4869717A (en) 1988-04-25 1989-09-26 Adair Edwin Lloyd Gas insufflation needle with instrument port
DE4035146A1 (de) 1990-11-06 1992-05-07 Riek Siegfried Instrument zum penetrieren von koerpergewebe
US5385572A (en) 1992-11-12 1995-01-31 Beowulf Holdings Trocar for endoscopic surgery
US5334150A (en) 1992-11-17 1994-08-02 Kaali Steven G Visually directed trocar for laparoscopic surgical procedures and method of using same
US5751341A (en) 1993-01-05 1998-05-12 Vista Medical Technologies, Inc. Stereoscopic endoscope system
US5441041A (en) 1993-09-13 1995-08-15 United States Surgical Corporation Optical trocar
US5609562A (en) * 1993-11-16 1997-03-11 Worldwide Optical Trocar Licensing Corporation Visually directed trocar and method
CA2176565C (en) * 1993-11-16 1997-03-18 Steven G. Kaali Visually directed trocar and method
US5720761A (en) 1993-11-16 1998-02-24 Worldwide Optical Trocar Licensing Corp. Visually directed trocar and method
US5569291A (en) 1995-02-01 1996-10-29 Ethicon Endo-Surgery, Inc. Surgical penetration and dissection instrument
GR1002806B (el) 1996-04-25 1997-11-13 Συστημα καταγραφης και μεταφορας πληροφοριων σε λαπαροσκοπικες και χειρουργικες επεμβασεις εν γενει.
US5785644A (en) 1996-07-12 1998-07-28 Circon Corporation Pivotal handle assembly for a video operating laparoscope
US6656160B1 (en) 1997-04-29 2003-12-02 Applied Medical Resources Corporation Insufflation needle apparatus
DE19815598B4 (de) 1998-04-07 2007-01-18 Stm Medizintechnik Starnberg Gmbh Flexibles Zugangsrohr mit Stülpschlauchsystem
EP1079724A1 (en) 1998-05-13 2001-03-07 Inbae Yoon Penetrating endoscope and endoscopic surgical instrument with cmos image sensor and display
US6527704B1 (en) 1999-03-10 2003-03-04 Stryker Corporation Endoscopic camera system integrated with a trocar sleeve
US6905489B2 (en) * 2001-04-24 2005-06-14 Northgate Technologies, Inc. Laparoscopic insertion device
US20030158521A1 (en) 2002-02-21 2003-08-21 Ameri Darius M. Trocar placement guide needle
US7056329B2 (en) 2002-10-23 2006-06-06 Intellimed Surgical Solutions, Llc Laparoscopic direct vision dissecting port
US7264847B2 (en) * 2003-02-19 2007-09-04 Robert P. Bentley, Sr. Lower alkyl carboxylic acid moieties for preventing oxidative corrosion of metals and organoleptic stabilizer for food and beverages
US7462175B2 (en) 2004-04-21 2008-12-09 Acclarent, Inc. Devices, systems and methods for treating disorders of the ear, nose and throat
WO2006004652A1 (en) 2004-06-29 2006-01-12 Applied Medical Resources Corporation Insufflating optical surgical instrument
US7824327B2 (en) 2005-04-12 2010-11-02 Tyco Healthcare Group Llp Optical trocar with scope holding assembly
US20060241344A1 (en) 2005-04-12 2006-10-26 Wilk Patent, Llc Intra-abdominal surgical method and associated apparatus
US20070123840A1 (en) 2005-10-18 2007-05-31 Usgi Medical, Inc. Instrument assisted abdominal access
US20070163585A1 (en) * 2006-01-13 2007-07-19 Olympus Medical Systems Corp. Method for accessing abdominal cavity and medical procedure via natural orifice
US20070260273A1 (en) * 2006-05-08 2007-11-08 Ethicon Endo-Surgery, Inc. Endoscopic Translumenal Surgical Systems
US7927272B2 (en) * 2006-08-04 2011-04-19 Avantis Medical Systems, Inc. Surgical port with embedded imaging device
EP2104461B1 (en) 2007-01-03 2014-04-09 Covidien LP Access sheath with removable optical penetrating member
US20080243162A1 (en) * 2007-04-02 2008-10-02 Norikiyo Shibata Trocar
JP2010535592A (ja) * 2007-08-06 2010-11-25 ライトハウス,イメージング コーポレーション 内視鏡
US20090124927A1 (en) 2007-11-13 2009-05-14 Chest Innovations, Inc. Endoscopic system for lung biopsy and biopsy method of insufflating gas to collapse a lung
US8548455B2 (en) * 2009-01-16 2013-10-01 Broadcom Corporation Method and system for installation and configuration of a femtocell
US8523817B2 (en) 2009-01-23 2013-09-03 Reza S. Mohajer Veress needle with illuminated guidance and suturing capability
US8109943B2 (en) 2009-04-10 2012-02-07 Gordian Surgical, LLC Systems and methods for suture anchor deployment
US20100274081A1 (en) * 2009-04-22 2010-10-28 Tyco Healthcare Group Lp Visual veress needle assembly
WO2011033513A1 (en) 2009-09-16 2011-03-24 Medigus Ltd. Small diameter video camera heads and visualization probes and medical devices containing them
IN2013MN00105A (cg-RX-API-DMAC7.html) * 2010-06-13 2015-05-29 Omeq Medical Ltd
US20110313255A1 (en) 2010-06-18 2011-12-22 Eric Stanley Veress needle with removable optical inserts
JP2012110469A (ja) * 2010-11-24 2012-06-14 Terumo Corp 医療器具
WO2012075487A2 (en) 2010-12-03 2012-06-07 Minimally Invasive Devices, Llc Devices, systems, and methods for performing endoscopic surgical procedures
US20120197078A1 (en) 2011-01-31 2012-08-02 Eric Stanley Insufflation needle with integrated image sensor
US8840588B2 (en) 2011-02-11 2014-09-23 Mectra Labs, Inc. Insufflation needle with dual indicator and method of use
WO2014108730A2 (en) * 2012-12-24 2014-07-17 Novadaq Technologies Inc. Endoluminal introducer
US9693798B2 (en) * 2013-02-25 2017-07-04 EON Surgical Ltd. Surgical tool introducer
EP2792321B1 (en) 2013-04-17 2017-02-15 Vesalius Medical Technologies Bvba A multi-cannula surgical instrument
WO2014179292A1 (en) 2013-04-29 2014-11-06 The Charlotte-Mecklenburg Hospital Authority D/B/A Carolinas Healthcare System Device, system, and method for insertion of a medical device into a subject
US20140357945A1 (en) 2013-05-30 2014-12-04 Edward Duckworth Laparoscopic Trocar with Ventriculoperitoneal Shunt Entry Port

Also Published As

Publication number Publication date
US11266442B1 (en) 2022-03-08
HK1256801A1 (en) 2019-10-04
EP3370632A1 (en) 2018-09-12
US11284919B1 (en) 2022-03-29
ES2953466T3 (es) 2023-11-13
KR20180081550A (ko) 2018-07-16
AU2016349495A1 (en) 2018-06-21
JP2018535807A (ja) 2018-12-06
CA3009177A1 (en) 2017-05-11
US20170042573A1 (en) 2017-02-16
US11602374B1 (en) 2023-03-14
EP3370632B1 (en) 2023-06-07
AU2016349495B2 (en) 2020-07-09
WO2017079662A1 (en) 2017-05-11
EP3370632A4 (en) 2019-06-05
US10463399B2 (en) 2019-11-05
JP6980670B2 (ja) 2021-12-15
KR102664739B1 (ko) 2024-05-08
CN108430356A (zh) 2018-08-21
CN108430356B (zh) 2021-02-05

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