DE4228459A1 - Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other - Google Patents

Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other

Info

Publication number
DE4228459A1
DE4228459A1 DE19924228459 DE4228459A DE4228459A1 DE 4228459 A1 DE4228459 A1 DE 4228459A1 DE 19924228459 DE19924228459 DE 19924228459 DE 4228459 A DE4228459 A DE 4228459A DE 4228459 A1 DE4228459 A1 DE 4228459A1
Authority
DE
Germany
Prior art keywords
parts
hose
profiled
insertable
shaped
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.)
Withdrawn
Application number
DE19924228459
Other languages
German (de)
Inventor
Wolfgang Daum
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.)
Daum GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19924228459 priority Critical patent/DE4228459A1/en
Publication of DE4228459A1 publication Critical patent/DE4228459A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A61B1/005Flexible endoscopes
    • A61B1/0051Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057Constructional details of force transmission elements, e.g. control wires

Landscapes

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

Abstract

The steering mechanism has several tubular, profiled, or wire parts with different preset bends, insertable into each other, and rotatable about a common axis. When slid apart, the parts assume a different curvature then when inserted into each other for bending the instrument. Pref. Bowden cables or fibres are used for mutual movement of the parts. Typically the parts are not fixed at one point of the instrument, but are movable by further Bowden cables or fibres along the hose-shaped instrument. USE/ADVANTAGE - For endovascular, or micro-surgery endoscopes and/or catheters, with compact steering, using superelastic titanium-nickel alloys.

Description

Die Erfindung betrifft eine mechanische Vorrichtung zum Krümmen von flexiblen schlauchförmigen Geräten.The invention relates to a mechanical device for bending of flexible tubular devices.

Bei den immer feiner werdenden Endoskopen z. B. der endovaskulä­ ren oder der Mikroneurochirurgie oder auch in der Technik ist es schwierig, diese beim Einfahren in räumlich komplizierte Örtlichkeiten zu lenken. Herkömmliche flexible Endoskope z. B. der Bronchoskopie oder Gastroskopie besitzen koplizierte platz­ aufwendige Lenkmechanismen wie z. B. in DE-OS 35 04 824, DE-OS 41 02 211, DE-OS 37 34 979, DE-OS 41 36 737 oder DE-OS 37 07 787 gezeigt. Flexible Endoskope der oben genannten chirurgischen Disziplinen oder Katheter können aus Platzgründen einen solchen Lenkmechanismus nicht besitzen. Dieser ist aber oft nötig.With the ever finer endoscopes z. B. the endovascular ren or microneurosurgery or in technology it is difficult to get this into spatially complicated To control locations. Conventional flexible endoscopes e.g. B. bronchoscopy or gastroscopy have duplicated space elaborate steering mechanisms such. B. in DE-OS 35 04 824, DE-OS 41 02 211, DE-OS 37 34 979, DE-OS 41 36 737 or DE-OS 37 07 787 shown. Flexible endoscopes of the above surgical Disciplines or catheters can be used for reasons of space Do not have steering mechanism. But this is often necessary.

Der vorgelegten Erfindung liegt das Problem zugrunde, einen platzsparenden Lenkmechanismus für solche flexiblen schlauch­ förmigen Geräte zu entwickeln. Der erzielbare Vorteil der Erfindung liegt in der platzsparenden Bauweise durch Verwendung bestimmter elastischer Materialien. Diese können z. B. soge­ nannte superelastische Titan-Nickel-Legierungen sein.The presented invention addresses the problem, one space-saving steering mechanism for such flexible hose to develop shaped devices. The achievable advantage of Invention lies in the space-saving design through use certain elastic materials. These can e.g. B. so-called called super elastic titanium-nickel alloys.

Weitere vorteilhafte Ausführungen der Erfindung sind in den Ansprüchen 2 bis 4 angegeben. Die in Anspruch 2 angegebene Ausführung erlaubt es, das Krümmen durch Bowdenzüge oder Fäden ferngesteuert auszuführen, die in Anspruch 3 das Gerät an beliebigen Stellen zu krümmen und die in Anspruch 4 eine bau­ technisch einfache Form der Vorrichtung zu erstellen, die sich nur an einem Ort des Gerätes befindet.Further advantageous embodiments of the invention are in the Claims 2 to 4 specified. The specified in claim 2 Execution allows bending by Bowden cables or threads remote control to run the device in claim 3 to bend any places and the construction in claim 4 technically simple form of the device to create the only in one place of the device.

Ein Ausführungsbeispiel mit zwei Rohren ist in der Zeichnung im Längsschnitt dargestellt. Fig. 1 zeigt die Vorrichtung im zusammengeschobenen Grundzustand, Fig. 2 im auseinandergezoge­ nen Krümmungszustand. Die Zwischenräume der Rohre sind zur besseren Darstellung sehr großzügig dargestellt.An embodiment with two tubes is shown in the drawing in longitudinal section. Fig. 1 shows the device in the compressed basic state, Fig. 2 in the exploded NEN state of curvature. The spaces between the pipes are shown very generously for better illustration.

Das schlauchförmige Gerät 1 befindet sich in dem Beispiel innerhalb der Krümmungsvorrichtung. Die Krümmungsvorrichtung besteht hier aus einem vorgebogenen Rohr 2. Dieses ist aus einem z. B. superelastischen Material wie der Titan-Nickel- Legierung gefertigt. Das Rohr 2 gibt dadurch dem weniger elastischen Rohr 3 beim Einschieben in dieses nach. Es ist zum Einschieben kein bedeutender Kraftaufwand nötig.In the example, the tubular device 1 is located within the curvature device. The curvature here consists of a pre-bent tube 2 . This is from a z. B. super elastic material such as the titanium-nickel alloy. The tube 2 gives way to the less elastic tube 3 when inserted into it. No significant effort is required to push it in.

Durch Ziehen an einem Faden oder Bowdenzug 4 kann das Rohr 2 aus dem Rohr 1 gezogen werden. Das Rohr 2 geht dann wieder in seine ursprünglich vorgekrümmte Form über. Das noch elastische­ re schlauchförmige Gerät 1 wird hierbei mitgekrümmt. Durch Ziehen an dem Faden 5 kann das Rohr 2 wieder eingezogen und die Vorrichtung in ihren Grundzustand gebracht werden. Die Faden­ durchführungen sind hier als Ösen 6 dargestellt.The tube 2 can be pulled out of the tube 1 by pulling a thread or Bowden cable 4 . The tube 2 then reverts to its originally curved shape. The still elastic re tubular device 1 is also curved here. By pulling the thread 5 , the tube 2 can be retracted and the device can be brought into its basic state. The thread feedthroughs are shown here as eyelets 6 .

Durch hier nicht gezeigte Fäden kann die Vorrichtung an den gewünschten Ort des schlauchförmigen Gerätes gebracht werden. Es können sich auch mehrere dieser Vorrichtungen an einem schlauchförmigen Gerät befinden. Auch könnte sich eine gebogene Grundform im Einsatz gerade biegen, oder können sich auch mehr als zwei vorgebogene Rohre in einer Vorrichtung befinden.By means of threads not shown here, the device can be attached to the be brought to the desired location of the tubular device. There can also be several of these devices on one tubular device. Also could be a curved one Bend the basic shape in use, or can do more as two pre-bent tubes in one device.

Claims (4)

1. Mechanische Vorrichtung zum Krummen von flexiblen schlauchförmigen Geräten, gekennzeichnet durch mindestens zwei unterschiedlich vorgebogene, ineinanderschieb­ bare und um ihre gemeinsame Achse drehbare rohr-, profil- oder drahtförmige Teile, die auseinander- geschoben eine andere Gesamtkrümmung als ineinandergeschoben einnehmen und damit das elastische Gerät krümmen.1. Mechanical device for the curvature of flexible tubular devices, characterized by at least two differently pre-bent, telescopic and rotatable tubular, profile or wire-shaped parts which, when pushed apart, assume a different overall curvature than pushed into one another and thus the elastic device warp. 2. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß zum Ineinanderbewegen der Teile Bowdenzüge oder Fäden genutzt werden.2. Device according to claim 1 characterized, that for moving the parts Bowden cables or threads be used. 3. Vorrichtung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß sich die Teile nicht fest an einem Punkt des Gerätes befinden, sondern durch weitere Bowdenzüge oder Fäden entlang des schlauchförmigen Gerätes an beliebige Punkte bewegt werden können.3. Device according to claim 1 and 2 characterized, that the parts are not firmly at one point of the device but through further Bowden cables or threads of the tubular device can be moved to any point can. 4. Vorrichtung nach Anspruch 1 und 2 dadurch gekennzeichnet, daß mindestens eines der Teile mit dem schlauchförmigen Gerät fest verbunden ist.4. Apparatus according to claim 1 and 2 characterized, that at least one of the parts with the tubular device is firmly connected.
DE19924228459 1992-08-27 1992-08-27 Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other Withdrawn DE4228459A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924228459 DE4228459A1 (en) 1992-08-27 1992-08-27 Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924228459 DE4228459A1 (en) 1992-08-27 1992-08-27 Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other

Publications (1)

Publication Number Publication Date
DE4228459A1 true DE4228459A1 (en) 1994-03-03

Family

ID=6466529

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DE19924228459 Withdrawn DE4228459A1 (en) 1992-08-27 1992-08-27 Mechanism for bending flexible, hose-shaped, medical instruments - has several tubular, profiled, or wire parts with different bends, insertable into each other

Country Status (1)

Country Link
DE (1) DE4228459A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6761685B2 (en) 1999-03-12 2004-07-13 Scimed Life Systems, Inc. Controllable endoscopic sheath apparatus and related method of use
US9198561B2 (en) 2011-01-31 2015-12-01 Boston Scientific Scimed, Inc. Articulation section with locking
US9737196B2 (en) 2008-07-18 2017-08-22 Boston Scientific Scimed, Inc. Endoscope with guide

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6761685B2 (en) 1999-03-12 2004-07-13 Scimed Life Systems, Inc. Controllable endoscopic sheath apparatus and related method of use
US7070559B2 (en) 1999-03-12 2006-07-04 Scimed Life Systems, Inc. Controllable endoscopic sheath apparatus and related method of use
US7951072B2 (en) 1999-03-12 2011-05-31 Boston Scientific Scimed, Inc. Controllable endoscopic sheath apparatus and related method of use
US8444551B2 (en) 1999-03-12 2013-05-21 Boston Scientific Scimed, Inc. Controllable endoscopic sheath apparatus and related method of use
US9289111B2 (en) 1999-03-12 2016-03-22 Boston Scientific Scimed, Inc. Controllable endoscopic sheath apparatus and related method of use
US9737196B2 (en) 2008-07-18 2017-08-22 Boston Scientific Scimed, Inc. Endoscope with guide
US10178944B2 (en) 2008-07-18 2019-01-15 Boston Scientific Scimed, Inc. Endoscope with guide
US10492666B2 (en) 2008-07-18 2019-12-03 Boston Scientific Scimed, Inc. Endoscope with guide
US10881279B2 (en) 2008-07-18 2021-01-05 Boston Scientific Scimed, Inc. Endoscope with guide
US9198561B2 (en) 2011-01-31 2015-12-01 Boston Scientific Scimed, Inc. Articulation section with locking
US9974429B2 (en) 2011-01-31 2018-05-22 Boston Scientific Scimed, Inc. Articulation section with locking
US10813538B2 (en) 2011-01-31 2020-10-27 Boston Scientific Scimed, Inc. Articulation section with locking

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Legal Events

Date Code Title Description
8122 Nonbinding interest in granting licenses declared
8127 New person/name/address of the applicant

Owner name: DAUM GMBH, 19061 SCHWERIN, DE

8181 Inventor (new situation)

Free format text: DAUM, WOLFGANG, 22763 HAMBURG, DE

8130 Withdrawal