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WO2004000410A1 - Dilatateur - Google Patents

Dilatateur Download PDF

Info

Publication number
WO2004000410A1
WO2004000410A1 PCT/EP2003/006328 EP0306328W WO2004000410A1 WO 2004000410 A1 WO2004000410 A1 WO 2004000410A1 EP 0306328 W EP0306328 W EP 0306328W WO 2004000410 A1 WO2004000410 A1 WO 2004000410A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow body
conical hollow
expander
dilator according
wall
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.)
Ceased
Application number
PCT/EP2003/006328
Other languages
German (de)
English (en)
Inventor
Hansgeorg Schaaf
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.)
Polydiagnost GmbH
Original Assignee
Polydiagnost GmbH
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 Polydiagnost GmbH filed Critical Polydiagnost GmbH
Priority to AU2003278950A priority Critical patent/AU2003278950A1/en
Publication of WO2004000410A1 publication Critical patent/WO2004000410A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • 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
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M2025/0042—Microcatheters, cannula or the like having outside diameters around 1 mm or less
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • A61M2029/025—Dilators made of swellable material characterised by the guiding element

Definitions

  • the invention relates to a dilator for expanding organ or body openings with a small diameter, in particular 0.5 mm and smaller.
  • the object of the invention is to provide a dilator for expanding small organ or body openings, which can be operated in a simple manner.
  • the dilator has a conical hollow body which is designed to be deformable.
  • An expander is inserted into the interior of the conical hollow body, through which the conical hollow body can be expanded.
  • the conical hollow body of the dilator can be equipped with a filiform tip or with a rounded tip and a subsequent conical outer diameter widening.
  • the conical increase in the caliber of the hollow body can also increase in steps with inclined steps.
  • the interior of the conical hollow body is preferably followed by a cavity of a guide part adapted to the outer diameter of the expander for guiding the expander.
  • the diameter of the interior in the conical hollow body is preferably made smaller than the outer diameter of the expander. In this way, the conical hollow body is expanded in a simple manner when the expander is inserted into the interior of the hollow body.
  • the preferably blunt tip of the dilator can be easily inserted into the organ or body opening to be expanded.
  • the adjoining hollow body with the conically increasing caliber can be fully or partially inserted into the opening.
  • the expander is then pushed into the interior of the conical hollow body and pushed further towards the tip of the conical hollow body.
  • the outer diameter of the expander is dimensioned such that the wall of the hollow body is extended outwards when pushed forward. This can be brought about by the fact that the wall of the conical hollow body is spread radially outwards by two or more slots or predetermined breaking points which run essentially axially parallel.
  • the conical hollow body made of stainless steel or another suitable alloy, for example a NiTi alloy.
  • the wall of the conical hollow body from an elastically stretchable material, for example silicone rubber or another suitable plastic.
  • the interior of the conical hollow body and the cavity of the guide space preferably have circular cross sections, which are preferably arranged coaxially to one another. This facilitates the insertion of the expander into the interior of the conical hollow body.
  • the expander is preferably designed as a tube. However, it can also be designed as a catheter or endoscope with one or more lumens for working channels and optics.
  • a connection or a plurality of connections for suction and / or rinsing devices is preferably provided at the proximal end or at another suitable lateral location of the tube. For example, by placing a syringe, it can then be rinsed and aspirated through the widened organ or body opening.
  • the tube lumen can furthermore form a channel for the single or repeated insertion of an instrument or endoscope, without causing additional irritation of the widened organ or body opening. Stabilization is also achieved in the region of the widened opening.
  • the dilator described can preferably be used for widening the smallest body openings that are naturally present or are artificially produced. It is preferably used for widening tear dots, saliva channel exits, milk channel exits in the nipple of the female breast and the like.
  • the created channel can also be used to insert diagnostic or therapeutic instruments.
  • FIG. 1 shows a sectional illustration of a first exemplary embodiment
  • FIG. 2 shows a sectional illustration of a second exemplary embodiment
  • Fig. 3 shows the embodiment of Figure 1 in an expanded state.
  • Fig. 4 shows another embodiment of the invention.
  • FIG. 5 shows the embodiment of FIG. 4 in the expanded state.
  • FIGS. 1, 2 and 4 show the exemplary embodiments of the invention in their initial state.
  • the dilators of these exemplary embodiments have a conical hollow body 1 with a tip, which is designed as a rounded or blunt tip. However, it is also possible to form this tip filiform, as is known for bougies.
  • the conical hollow body 1 has an increasing caliber on its outer surface, which increases continuously in the illustrated exemplary embodiments. However, it is also possible to use a step-wise caliber with beveled steps.
  • the wall of the conical hollow body 1 consists of two wall parts 2 and 3.
  • the wall parts 2 and 3 are formed by longitudinally extending or axially parallel slots 10 at diametrical wall locations.
  • the two wall parts 2 and 3 are formed by predetermined breaking points 9 instead of the slots 10.
  • the predetermined breaking points 9 are created by weak points running parallel to the axis in the wall of the conical hollow body 1.
  • slots 10 or predetermined breaking points 9 can extend into a linear part of the dilator. This linearly extending part continues in a guide body 7.
  • the guide body 7 is also hollow, so that an expander 5 can be inserted into its cavity 8.
  • the expander 5 consists of a rigid material and is preferably designed as a tube, in particular a metal tube. Its edge at the distal end is preferably rounded in order to prevent it from getting caught Prevent insertion into the cavity 8 and then into the interior 6 of the conical hollow body 6.
  • the outer diameter or outer circumference of the expander 5 is larger than the inner diameter of the interior 6 in the conical hollow body or in the part of the interior ⁇ along which the slots 10 or predetermined breaking points 9 extend. This narrowing of the diameter in the interior 6 can, for example, begin or be provided at the proximal ends of the slots 10 or predetermined breaking points 9 or at a short distance behind them.
  • FIG. 3 When the expander 5 is moved towards the tip of the conical hollow body 1, the wall parts 2 and 3 are spread radially outward, so that an organ or body opening into which the tip and the conical hollow body 1 are inserted is widened.
  • this expanded state is shown in FIG. 3.
  • the embodiment of FIG. 2 can also be expanded in the same way, the wall parts 2 and 3 of this embodiment also being moved radially outward.
  • the wall of the conical hollow body 1 consists of an expandable material, in particular plastic.
  • the wall 4 of the conical hollow body 1 can be provided in the area of the tip with a thin weld seam that can be released by the inserted expander 5.
  • Other connecting means for example adhesive or the like, can also be provided in order to achieve stabilization when the tip of the conical hollow body 1 is inserted into the opening.
  • the expander 5 is preferably designed as a tube.
  • a suction and / or rinsing device 12 can be connected to the proximal end of the tube, for example by means of a Luer lock 11 or other connection. It is also possible to introduce pharmaceuticals into the tube and thus into the organ via the Luer lock connection 11.
  • the expander 5 can also be designed as a catheter or endoscope with one or more lumens for optics and working channels.
  • the dilator described in the exemplary embodiments is preferably used for natural or artificially introduced organ or body openings. These openings have small diameters, in particular less than 0.5 mm.
  • the dilator In order to prevent the dilator from being pushed too far into the opening, it can have a stop 13, as is known, for example, from the rigid conical dilator for tracheal bougienage from DE 100 65 604 C2.
  • the exemplary embodiments shown in FIGS. 1 to 5 preferably have a circular outer and inner cross section.
  • the conical hollow body 1 and the guide body 7 are formed coaxially.
  • the conical hollow body 1 and the guide body 7 can be formed from one piece.
  • the guide body 7 can pass into a stylus part or handpiece, the connection for the injection device or the rinsing and / or suction device can take place in the region of the stylus part or handpiece.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne un dilatateur muni d'un corps creux (1), dont la paroi (2, 3) est déformable. Le corps creux (1) peut être dilaté dans le sens radial par un expanseur (5) insérable.
PCT/EP2003/006328 2002-06-20 2003-06-16 Dilatateur Ceased WO2004000410A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003278950A AU2003278950A1 (en) 2002-06-20 2003-06-16 Dilator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20209595.9 2002-06-20
DE20209595U DE20209595U1 (de) 2002-06-20 2002-06-20 Dilatator

Publications (1)

Publication Number Publication Date
WO2004000410A1 true WO2004000410A1 (fr) 2003-12-31

Family

ID=29285793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/006328 Ceased WO2004000410A1 (fr) 2002-06-20 2003-06-16 Dilatateur

Country Status (3)

Country Link
AU (1) AU2003278950A1 (fr)
DE (1) DE20209595U1 (fr)
WO (1) WO2004000410A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009048948A1 (fr) * 2007-10-09 2009-04-16 Wilson-Cook Medical, Inc. Systèmes, dispositifs et procédés présentant un surtube pour accéder à une ouverture corporelle
CN103007416A (zh) * 2011-09-20 2013-04-03 武汉金至园科技有限公司 一种前端形状可变的经皮肾穿刺扩张管
CN106821470A (zh) * 2017-03-27 2017-06-13 江卫泽 一种穿刺套针及穿刺旋取装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053466A1 (de) * 2004-11-03 2006-05-04 Karl Storz Gmbh & Co. Kg Medizinisches Instrument zum Handhaben von Gegenständen, die eine Kanülierung aufweisen
DE102011084916A1 (de) * 2011-10-20 2013-04-25 Digital Endoscopy OEM GmbH Einführelement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023536A1 (fr) * 1995-02-03 1996-08-08 Inbae Yoon Canule a valve en bout
US5814073A (en) * 1996-12-13 1998-09-29 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US20020193822A1 (en) * 2001-04-16 2002-12-19 Pro Duct Health, Inc. Externally positioned medical dilator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2656752A1 (de) * 1976-12-15 1978-06-22 Juergen Dr Med Kynast Geraet zur ausweitung des mutterhalskanals
GB8403548D0 (en) * 1984-02-10 1984-03-14 Ici Plc Chemical process
US5354302A (en) * 1992-11-06 1994-10-11 Ko Sung Tao Medical device and method for facilitating intra-tissue visual observation and manipulation of distensible tissues

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023536A1 (fr) * 1995-02-03 1996-08-08 Inbae Yoon Canule a valve en bout
US5814073A (en) * 1996-12-13 1998-09-29 Bonutti; Peter M. Method and apparatus for positioning a suture anchor
US20020193822A1 (en) * 2001-04-16 2002-12-19 Pro Duct Health, Inc. Externally positioned medical dilator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009048948A1 (fr) * 2007-10-09 2009-04-16 Wilson-Cook Medical, Inc. Systèmes, dispositifs et procédés présentant un surtube pour accéder à une ouverture corporelle
AU2008310975B2 (en) * 2007-10-09 2013-08-22 Cook Medical Technologies Llc Systems, devices and methods having an overtube for accessing a bodily opening
CN103007416A (zh) * 2011-09-20 2013-04-03 武汉金至园科技有限公司 一种前端形状可变的经皮肾穿刺扩张管
CN106821470A (zh) * 2017-03-27 2017-06-13 江卫泽 一种穿刺套针及穿刺旋取装置

Also Published As

Publication number Publication date
DE20209595U1 (de) 2003-10-23
AU2003278950A1 (en) 2004-01-06

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