+

WO1999051153A2 - Catheter de longueur et de forme variables - Google Patents

Catheter de longueur et de forme variables Download PDF

Info

Publication number
WO1999051153A2
WO1999051153A2 PCT/BG1999/000007 BG9900007W WO9951153A2 WO 1999051153 A2 WO1999051153 A2 WO 1999051153A2 BG 9900007 W BG9900007 W BG 9900007W WO 9951153 A2 WO9951153 A2 WO 9951153A2
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
interior tube
tube
transition
chambers
Prior art date
Application number
PCT/BG1999/000007
Other languages
English (en)
Other versions
WO1999051153A3 (fr
Inventor
Alexander R. Stefanow
Ivan R. Stefanow
Original Assignee
Stefanow Alexander R
Stefanow Ivan R
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 Stefanow Alexander R, Stefanow Ivan R filed Critical Stefanow Alexander R
Priority to EP99911538A priority Critical patent/EP1006900A2/fr
Priority to AU30204/99A priority patent/AU3020499A/en
Priority to JP54983499A priority patent/JP2002500546A/ja
Publication of WO1999051153A2 publication Critical patent/WO1999051153A2/fr
Publication of WO1999051153A3 publication Critical patent/WO1999051153A3/fr

Links

Classifications

    • 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
    • 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
    • A61B1/00078—Insertion part of the endoscope body with stiffening means
    • 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
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • 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
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057—Constructional details of force transmission elements, e.g. control wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • 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
    • A61M25/0119—Eversible catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B17/3439—Cannulas with means for changing the inner diameter of the cannula, e.g. expandable
    • 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
    • A61M25/0116—Steering means as part of the catheter or advancing means; Markers for positioning self-propelled, e.g. autonomous robots

Definitions

  • the invention refers to a cannula of changeable length and shape, which can be used in medical application during the penetration of various devices, e.g. endoscopes, into the living systems as well as other activities, which necessitate the penetration into a medium, vulnerable to mechanical intervention and/or is without well-shaped confining walls.
  • various devices e.g. endoscopes
  • tubes, tubular elements (1-7) and devices e.g. endoscopes, including tubes and tubular elements (8, 9), which are characterised by the fact that after penetrating into the body along the existing lumens - oesophagus, blood vessels, etc. - they ensure some protection from mechanical traumas to the surrounding tissues during the operation of the devices.
  • a disadvantage of the existing tubes, tubular elements and devices containing tubes and tubular elements is the fact that during their penetration into the living system as well as during their removal, they cause considerable traumas due to the friction between their outside surface and the medium of penetration and particularly to the side pressure exerted by the sections where there are curves.
  • the patent /13/ proposes a new principle of action of a three-dimensional controllable cannula according to which the leading instrument is placed in a lumen of the cannula itself.
  • the lumen is formed during the penetration into the body without having to use ready natural ways and operates on the principle of snail horns - protruding and retracting.
  • the patent does not propose a construction working on this principle, neither the moving force which will open and close the cannula.
  • the aim of the invention is to create a cannula- of changeable length and shape, which is to penetrate the living system not only through existing orifices and which is to reduce to a minimum the traumas to the surrounding medium e.g. the human body.
  • the task is solved by a device in which the cannula is formed at entering the working medium only through lengthening, which enters the working medium only through lengthening the front end, which takes the turns in any direction only through growing in the same direction and which is taken out of the surrounding medium only through shortening of the front end, keeping static all the time in respect to the medium and keeping stable its shape.
  • a flexible elastic tube has been created, including components by which it can be reversibly hardened and which is partly turned so that two concentrically located tubes are formed.
  • the interior tube I and this cannula 2 have walls passing from on into the other and the interior wall of the interior tube becomes the exterior wall of the cannula 2 and respectively the exterior wall of the interior tube becomes the interior wall of the cannula.
  • the elongation of the cannula 2 is realised through skidding the interior tube in the direction of the place of its transition into the cannula.
  • the shortening of the cannula is realised through skidding its interior tube in the opposite direction.
  • the skidding of the interior tube 1 is effected by pushing or pulling several guiding bands 8, longitudinally attached to its interior wall and included in a groove 7 along the length of the device, e.g. the endoscope 5, for, whose penetration into the surrounding medium the cannula is constructed.
  • the bands 8 can impart their movement along the entire length of the interior tube 1 under the impact of the operator, applying the necessary force at the beginning of the interior tube outside the medium. In which the cannula 2 penetrates and the endoscope 5 inserted in it.
  • the bands 8 have enough flexibility to follow the bending at the point of transition from the interior tube 1 into the cannula 2.
  • the turns are obtained by advanced pushing of the bands from the outside of the turn and delayed pushing of the same bands from the inside of the turn in the condition of cannula elongation.
  • the sections from the bands 8, passing into the composition of the cannula 2 after leaving along the guiding grooves 7 become static together with the newly built section of the cannula, immediately after the point of transitions Description of Drawings
  • the cannula 2 is static in respect to the surrounding medium with the exception of its end section, which is created at the point of transition of the interior tube 1 into the cannula 2 and thus the friction in this medium is eliminated, both in the cannula itself and of the endoscope 5 inserted in it.
  • the cannula unlike the interior tube 1, has a stable shape, i.e. it is relatively hard, that is why in the turns, it and the endoscope inserted in it don't press the surrounding medium laterally.
  • the cannula described above does not traumatise the surrounding medium either by longitudinal friction, or by lateral pressure, except in the place and at the moment of elongation, respectively shortening at the end of this cannula.
  • Example 1 A cannula 2, of changeable length and shape, chown in fig. 1 and 2, concentrically including a soft tube 1 built of double walls, between which is located a substance 3 in molten state and the same substance in solid state 4, with welting temperature several degrees higher than the temperature of the surrounding medium. In which the cannula penetrates.
  • Motive bands 8 located along the length of the interior wall of the interior tube and respectively along the exterior side of the cannula. They are included in the grooves 7 of the endoscope 5, which grooves end at the periphery of the endoscope head 6. The endoscope moves forward or backward at the rate of elongation or respectively of shortening of the cannula.
  • the function of the endoscope head which covers the section of the cannula, is to facilitate the transition of the interior tube into the cannula and vice versa and to reduce to a minimum the traumas to the surrounding medium during the penetration of the growing end of the cannula in it.
  • the elongation of the cannula is effected by skidding the interior flexible tube between the endoscope and the cannula in the direction of the growing end of the cannula, the turning of the soft tube under the endoscope head under the impact of the motive bands, which at this point move apart and turn the direction of their movement at 180 D and turning this section into the end section of the cannula.
  • the softness of the interior tube is maintained by continuous heating of the melt, included in it through the heaters 9, built in the surface layer or the endoscope and in the inside wall of its head.
  • the hardening of the end section of the cannula is effected through crystallisation of the melt and its transformation into a solid substance because of the heat liberation from the melt into the surrounding medium.
  • the endoscope moves towards the cannula exit, its head presses the pain of transition, the surface layers of the crystallised substance melt, the respective section of the cannula softens and its transition into the end section of the interior tube becomes possible.
  • This transition is accompanied by pulling the motive bands in the direction of the cannula exit and skidding the interior tube in the direction of this exit.
  • Example 2 A cannula, shown in fig. 3, similar to that described in Example 1, in which the melt and the crystallised substance are located in toroidal channels 12, included in the mass of the interior tube and respectively the cannula. lying, on a plane perpendicular to the axis of the internal tube of the cannula.
  • this cannula is the facilitated movement at the point of transition and the circumstance that during the formation of the turns, the melt in pushed from the internal side of the turn towards its external side and crystallises in this state, fixing the state of the turn at the highest degree.
  • Example 3 A cannula, similar to those described in Example 1 and 2, in which the hardening of the cannula is achieved by crystallisation of a minimal quantity of melt, wetting a mass of small slippery solid particles, e.g. microscopic plastic granules. The hardening of the entire mass is achieved through crystallisation of the melt wetting the solid particles.
  • this cannula is that the amount of the crystallising melt is less as compared with the quantity of the total mass, which passes from a liquid into a solid state, that is why less heat energy and respectively less time are necessary both for the hardening and the softening of the mass.
  • Example 4 A cannula, shown in fig. 4, similar to that described in Example 1, in which the hardening of the cannula is achieved as a result of vacuuming the space between the two walls of the tube, filled with small slippery solid particles, e.g. plastic granules 10.
  • a pressing washer 11 linked with the endoscope head, which facilitates the separation of the vacuumed space between the double wall of the cannula from the space between the double wall of the internal tube, in which the pressure is normal.
  • the advantage of the described cannula is the high speed of transition from liquid into solid state of the mass, filling the space between the double walls of the tubes.
  • Example 5 A cannula, shown in fig. 5, similar to that described in Example 2, in which the toroidal channels 12 included in the interior tube and the cannula and lying on a plane perpendicular to their axis, represent hollow, multichamber toroids equipped with valves 13, for each chamber separately.
  • the valves are situated on the external side of the interior tube and respectively the internal side of the cannula, i.e. they are facing the space between the two tubes.
  • This space is divided into two parts internal and external - by a flexible tube 14, dividing the space between the two tubes and ending at the point of transition with a slide 15. The values open as a result of pressing the slide 15 at the point of transition.
  • the toroids remaining unevenly swollen, in the different chambers, fix the turn condition.
  • the chambers of the topmost toroid open again because the valves are pressed to the slide and after passing into the internal space between the endoscope and the interior tube, because of the vacuum they quickly get empty and cause the softening, of the respective tube section 1.
  • Example 6 A cannula, shown in figures 6 and 7, similar to that described in Example 2, in which instead with toroidal channels the hardening of the cannula 2 is achieved by rings 16, attached to the internal wall of the interior tube and respectively the internal wall of the cannula, lying on a plane, perpendicular to their axis.
  • the rings are reversibly collapsible in such a way that in a folded state their diameter coincides with the diameter of the interior tube, while in an unfolded state it coincides with the diameter of the cannula.
  • the elements 17 are attached to the side walls of the segments 18 in recesses, restraining the movement of the elements 17 in such a way that in a folded state they form a sharp angle, and in an unfolded state - an obtuse angle, bigger than 1801:, whereas the hinges between the elements 17 are located at a radius a little bigger than the radius at which the hinges between the elements 17 and the segments 18 are located. In this position the unfolded state of the ring 16 is stable which means that a spontaneous folding at an even external pressing is not possible.
  • the rings are linked with the interior tube and the cannula through the washers which can rotate freely at the pint of transition.
  • the motive bands 8 are attached to the hinges between the elements 17.
  • This cannula is the safety of the reversible transition from folded into unfolded state of the mechanical system.
  • Example 7 A cannula, shown in fig. 8, similar to that described in Example 1, in which the hardening of the cannula is caused by the meshing of profile bodies 21 and 22 to each other in the interior between the two walls of the cannula.
  • these are longitudinal bands with indented cross section of the contact surfaces, lying freely in beds, larger than them, in such a way that the concave end of the band 21 from one side gets in the concave end of the opposite band 22.
  • the pressing of the bands to each other, their meshing and the hardening of the cannula is the result of the elastic deformation of the cannula walls at the transition of the interior into the cannula.
  • the advantage of the described cannula is the smoothness of the external walls of the cannula and the interior tube and the safety of transition from the soft tube into the hard cannula and vice versa.
  • Example 8 A cannula, shown in figures 9 and 10, similar to those described in Examples 2 and 5, in which the hollow toroids, lying on a plane perpendicular to the axes of the cannula and the interior tube are multichambered, but do not contain valves, i.e. they are quite closed and contain a liquid 23 with a temperature of boiling higher than the temperature of the surrounding medium of the cannula.
  • the end of a light-conducting fibre 25 reaches the interior of each separate chamber 24.
  • the fibres 25 lie along the entire length of the respective chamber up to the beginning of the interior tube, from where at command light is fed differentially to the separate fibres.
  • the additional fibres 26, reaching, the surface of the internal side and the cannula between the toroids receive the light being reflected from the internal surface of the endoscope head, having reached that place through the fibres 27.
  • the fibres 26 play the part of indicators, registering when the respective toroids reach the point of transition and signalling that light is to be fed to the fibres 25.
  • This light causes the evaporation of the liquid 23 and the swelling and hardening of the chambers 24.
  • the cannula grows in a straight line light is fed into all the chambers of the toroid, having reached the point of transition and it o
  • Patent PF RU 2022518 Cl 13.02.91

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Surgical Instruments (AREA)

Abstract

Cette invention a trait à un cathéter de longueur et de forme variables, utilisable à des fins médicales ou autres, exigeant l'introduction de différents dispositifs dans un milieu susceptible d'être lésé par un intervention mécanique et/ou dépourvu de parois de confinement en forme de puits. On obtient le résultat désiré en effectuant une rotation de la section terminale d'un tube souple de manière que la partie extérieure tourne de manière à se placer de façon concentrique par rapport au tube intérieur initial. On provoque un durcissement immédiatement après le point de transition, soit en congelant le liquide que renferme le tube, soit en faisant le vide dans des canaux creux remplis de fines particules, soit en gonflant des enroulements toroïdaux que renferme le tube, soit en déployant des anneaux d'éléments solides, soit encore en faisant s'engrener les éléments de profil que contiennent les parois du tube.
PCT/BG1999/000007 1998-04-02 1999-04-01 Catheter de longueur et de forme variables WO1999051153A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99911538A EP1006900A2 (fr) 1998-04-02 1999-04-01 Catheter de longueur et de forme variables
AU30204/99A AU3020499A (en) 1998-04-02 1999-04-01 A cannula of changeable length and shape
JP54983499A JP2002500546A (ja) 1998-04-02 1999-04-01 可変的長さと形状を有するカニューレ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG102367 1998-04-02
BG102367A BG102367A (en) 1998-04-02 1998-04-02 Canal with alternating length and form

Publications (2)

Publication Number Publication Date
WO1999051153A2 true WO1999051153A2 (fr) 1999-10-14
WO1999051153A3 WO1999051153A3 (fr) 1999-11-18

Family

ID=3927411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG1999/000007 WO1999051153A2 (fr) 1998-04-02 1999-04-01 Catheter de longueur et de forme variables

Country Status (5)

Country Link
EP (1) EP1006900A2 (fr)
JP (1) JP2002500546A (fr)
AU (1) AU3020499A (fr)
BG (1) BG102367A (fr)
WO (1) WO1999051153A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000062658A1 (fr) * 1999-04-16 2000-10-26 Stefanov Alexander R Catheter reversible a reglage thermique de la rigidite
JP2006212431A (ja) * 2005-02-01 2006-08-17 Invendo Medical Gmbh 内視鏡
US7736300B2 (en) 2003-04-14 2010-06-15 Softscope Medical Technologies, Inc. Self-propellable apparatus and method
DE102017101701A1 (de) 2017-01-30 2018-08-02 Brandes Innovation Inh. Ronald Brandes Prothesenvorrichtung zum Stützen von Körperteilen oder Körperabschnitten
CN114209269A (zh) * 2021-11-25 2022-03-22 上海澳华内镜股份有限公司 内窥镜及内窥装置
US11311664B1 (en) 2021-04-12 2022-04-26 Denicia Dread Rankin Shapeable intravenous tubing
CN116870340A (zh) * 2023-08-28 2023-10-13 江苏赛腾医疗科技有限公司 双腔插管

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1477371A1 (ru) 1987-04-07 1989-05-07 Киевский Филиал Ленинградского Специального Конструкторского Бюро По Проектированию Кожгалантерейных, Обувных, Меховых Машин И Средств Автоматизации Машина дл креплени деталей низа обуви по контуру, например ранта
SU1480806A1 (ru) 1987-07-06 1989-05-23 Научно-Исследовательский Институт Лазерной Хирургии Гибка управл ема трубка
US5448989A (en) 1993-02-22 1995-09-12 Richard Wolf Gmbh Medical instrument shaft capable of positive and non-positive linking of segments
US5558665A (en) 1994-06-24 1996-09-24 Archimedes Surgical, Inc. Surgical instrument and method for intraluminal retraction of an anatomic structure
US5620408A (en) 1995-04-14 1997-04-15 Vennes; Jack A. Endoscopic over-tube
US5643174A (en) 1993-08-18 1997-07-01 Sumitomo Bakelite Company Limited Endoscopic guide tube with embedded coil spring
US5645520A (en) 1994-10-12 1997-07-08 Computer Motion, Inc. Shape memory alloy actuated rod for endoscopic instruments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1549419A (fr) * 1967-10-18 1968-12-13
JP3371378B2 (ja) * 1988-08-05 2003-01-27 ペーター ハーベーメイヤー 四肢の包囲固定装置
DE3925484A1 (de) * 1989-08-01 1991-02-07 Bob Konstantin Vorrichtung zum einfuehren eines medizinischen endoskops in einen koerperkanal
DE4113265A1 (de) * 1989-10-23 1992-03-12 Bauerfeind Peter Einfuehrvorrichtung fuer schlauchfoermige fiberoptische instrumente, insbes. kolonoskope
DE4242291C2 (de) * 1992-12-15 2000-02-10 Stm Medtech Starnberg Vorrichtung zum Bewegen eines Endoskops längs eines kanalartigen Hohlraums

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1477371A1 (ru) 1987-04-07 1989-05-07 Киевский Филиал Ленинградского Специального Конструкторского Бюро По Проектированию Кожгалантерейных, Обувных, Меховых Машин И Средств Автоматизации Машина дл креплени деталей низа обуви по контуру, например ранта
SU1480806A1 (ru) 1987-07-06 1989-05-23 Научно-Исследовательский Институт Лазерной Хирургии Гибка управл ема трубка
US5448989A (en) 1993-02-22 1995-09-12 Richard Wolf Gmbh Medical instrument shaft capable of positive and non-positive linking of segments
US5643174A (en) 1993-08-18 1997-07-01 Sumitomo Bakelite Company Limited Endoscopic guide tube with embedded coil spring
US5558665A (en) 1994-06-24 1996-09-24 Archimedes Surgical, Inc. Surgical instrument and method for intraluminal retraction of an anatomic structure
US5645520A (en) 1994-10-12 1997-07-08 Computer Motion, Inc. Shape memory alloy actuated rod for endoscopic instruments
US5620408A (en) 1995-04-14 1997-04-15 Vennes; Jack A. Endoscopic over-tube

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000062658A1 (fr) * 1999-04-16 2000-10-26 Stefanov Alexander R Catheter reversible a reglage thermique de la rigidite
US7736300B2 (en) 2003-04-14 2010-06-15 Softscope Medical Technologies, Inc. Self-propellable apparatus and method
US9033867B2 (en) 2003-04-14 2015-05-19 Fujifilm Corporation Self-propellable endoscopic apparatus and method
JP2006212431A (ja) * 2005-02-01 2006-08-17 Invendo Medical Gmbh 内視鏡
EP1685789A3 (fr) * 2005-02-01 2006-11-02 STM Medizintechnik Starnberg GmbH Endoscope avec un tube retourné, guidé longitudinalement
DE102017101701A1 (de) 2017-01-30 2018-08-02 Brandes Innovation Inh. Ronald Brandes Prothesenvorrichtung zum Stützen von Körperteilen oder Körperabschnitten
US11311664B1 (en) 2021-04-12 2022-04-26 Denicia Dread Rankin Shapeable intravenous tubing
CN114209269A (zh) * 2021-11-25 2022-03-22 上海澳华内镜股份有限公司 内窥镜及内窥装置
CN116870340A (zh) * 2023-08-28 2023-10-13 江苏赛腾医疗科技有限公司 双腔插管
CN116870340B (zh) * 2023-08-28 2024-01-30 江苏赛腾医疗科技有限公司 双腔插管

Also Published As

Publication number Publication date
EP1006900A2 (fr) 2000-06-14
AU3020499A (en) 1999-10-25
JP2002500546A (ja) 2002-01-08
WO1999051153A3 (fr) 1999-11-18
BG102367A (en) 1999-10-29

Similar Documents

Publication Publication Date Title
US20240108206A1 (en) Modular body cavity access system
US5842971A (en) Optical endoscopic portals and methods of using the same to establish passages through cavity walls
US8414587B2 (en) Styli used to position device for carrying out selective discetomy
AU673361B2 (en) Catheter having a multiple durometer
US7481793B2 (en) Modular steerable sheath catheters
AU2009348455B2 (en) Indwelling urinary catheter with self-retaining mechanism
JP4940390B2 (ja) 編構造体およびコイルを有する医療装置
DE69836821T2 (de) Zugangsvorrichtung mit einem ausweitbaren auffangelement
EP3673948B1 (fr) Cathéter à ballonnet dilatable
US20050197623A1 (en) Variable steerable catheters and methods for using them
MX2015003052A (es) Inflador para dilatar un pasaje anatomico.
WO1991011209A1 (fr) Catheter a ancre foraminee
MX2014001119A (es) Sonda quirurgica oftalmica de articulacion.
JPH0417066B2 (fr)
CN102448364A (zh) 用于传送自主体内胶囊的设备
CA2101168A1 (fr) Canule dirigeable
CA2559781A1 (fr) Catheters orientables et variables et leurs procedes d'utilisation
US9451875B2 (en) Flexible lens
JP7189023B2 (ja) 尿道内処置用微侵襲性器具
US20120197083A1 (en) Method and apparatus for endoscope advancement
WO2014201563A1 (fr) Dispositif de préhension de tissu
WO2012074426A1 (fr) Dispositif pour l'extraction de concrétions à partir de structures tubulaires
WO1999051153A2 (fr) Catheter de longueur et de forme variables
WO1998019732A1 (fr) Instrument orientable utilise lors d'actes medicaux
JPH02295530A (ja) 内視鏡カテーテル及びその使用方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

ENP Entry into the national phase

Ref country code: JP

Ref document number: 1999 549834

Kind code of ref document: A

Format of ref document f/p: F

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1999911538

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 09445053

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 1999911538

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1999911538

Country of ref document: EP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载