BG103110A - Водеща електротермична глава за управляема сонда - Google Patents

Водеща електротермична глава за управляема сонда

Info

Publication number
BG103110A
BG103110A BG103110A BG10311099A BG103110A BG 103110 A BG103110 A BG 103110A BG 103110 A BG103110 A BG 103110A BG 10311099 A BG10311099 A BG 10311099A BG 103110 A BG103110 A BG 103110A
Authority
BG
Bulgaria
Prior art keywords
voltage
guiding
transition
diode
drill
Prior art date
Application number
BG103110A
Other languages
English (en)
Inventor
Рангел ПЕТКОВ
Original Assignee
СТЕФАНОВ Александър
СТЕФАНОВ Иван
A.I.Stefanov Medical Research 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 СТЕФАНОВ Александър, СТЕФАНОВ Иван, A.I.Stefanov Medical Research Inc. filed Critical СТЕФАНОВ Александър
Priority to BG103110A priority Critical patent/BG103110A/bg
Priority to AU22715/00A priority patent/AU2271500A/en
Priority to PCT/BG2000/000004 priority patent/WO2000042899A2/en
Publication of BG103110A publication Critical patent/BG103110A/bg

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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • 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
    • A61B1/0058—Flexible endoscopes using shape-memory elements
    • 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
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0662—Guide tubes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Водещата електротермична глава се състои от метален пръстен със сегментно вградени чипове на ценердиоди, които се оказват винаги насрещно свързани при подаване на напрежение на два сегмента и за сметка на топлинния ефект от прехода на диода, който еправо пропорционален на напрежението на прехода итока, през него се нагрява предимно сегментът на обратно свързания диод. Така се локализира топлинната енергия на челото на водещата тръба в определения сегмент. Чрез промяна на посоката и стойносттана напрежението към срещуположните сегменти се променя скоростта на обръщане на прилежащия материалот термопластична тръба. Под действието на пружината (15)и хидравличното налягане (НР) се управлявапосоката на проникване на сондата.
BG103110A 1999-01-25 1999-01-25 Водеща електротермична глава за управляема сонда BG103110A (bg)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BG103110A BG103110A (bg) 1999-01-25 1999-01-25 Водеща електротермична глава за управляема сонда
AU22715/00A AU2271500A (en) 1999-01-25 2000-01-25 Guide electro-thermal head for controllable sonde
PCT/BG2000/000004 WO2000042899A2 (en) 1999-01-25 2000-01-25 Guide electro-thermal head for controllable sonde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG103110A BG103110A (bg) 1999-01-25 1999-01-25 Водеща електротермична глава за управляема сонда

Publications (1)

Publication Number Publication Date
BG103110A true BG103110A (bg) 2000-07-31

Family

ID=3927662

Family Applications (1)

Application Number Title Priority Date Filing Date
BG103110A BG103110A (bg) 1999-01-25 1999-01-25 Водеща електротермична глава за управляема сонда

Country Status (3)

Country Link
AU (1) AU2271500A (bg)
BG (1) BG103110A (bg)
WO (1) WO2000042899A2 (bg)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753223A (en) * 1986-11-07 1988-06-28 Bremer Paul W System for controlling shape and direction of a catheter, cannula, electrode, endoscope or similar article
US5577992A (en) * 1993-10-05 1996-11-26 Asahi Kogaku Kogyo Kabushiki Kaisha Bendable portion of endoscope
BG102493A (bg) * 1998-05-28 2000-02-29 СТЕФАНОВ Александър Канал с вградена мрежа за управление, хидравлично насочване и система за контрол

Also Published As

Publication number Publication date
WO2000042899A2 (en) 2000-07-27
AU2271500A (en) 2000-08-07
WO2000042899A3 (en) 2000-11-16

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