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WO2016023629A1 - Instrument à tige tubulaire pourvu d'une tige tubulaire et d'un raccord de lavage - Google Patents

Instrument à tige tubulaire pourvu d'une tige tubulaire et d'un raccord de lavage Download PDF

Info

Publication number
WO2016023629A1
WO2016023629A1 PCT/EP2015/001641 EP2015001641W WO2016023629A1 WO 2016023629 A1 WO2016023629 A1 WO 2016023629A1 EP 2015001641 W EP2015001641 W EP 2015001641W WO 2016023629 A1 WO2016023629 A1 WO 2016023629A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular shaft
tubular
shaft
coating
lever
Prior art date
Application number
PCT/EP2015/001641
Other languages
German (de)
English (en)
Inventor
Ralph Bacher
Original Assignee
Bacher Medizintechnik 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 Bacher Medizintechnik GmbH filed Critical Bacher Medizintechnik GmbH
Publication of WO2016023629A1 publication Critical patent/WO2016023629A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/0084—Material properties low friction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/00889—Material properties antimicrobial, disinfectant
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2901—Details of shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B2017/2901—Details of shaft
    • A61B2017/2905—Details of shaft flexible
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, 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
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0813—Accessories designed for easy sterilising, i.e. re-usable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, 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
    • A61B90/70—Cleaning devices specially adapted for surgical instruments

Definitions

  • the invention relates to tubular shaft instrument with a tubular shaft at the first, proximal end of a handle with a festste- lever handle and a pivotable relative to this pivoting lever is arranged and at its second, distal end provided with a bearing element tool is provided which by pressing the Gripping part is adjustable by a longitudinally displaceably arranged in the tubular shaft pulling element, wherein the tubular shaft instrument has a flushing connection for flushing the tubular shaft,
  • Pipe shank instruments with a tubular shaft have been known for a long time.
  • This tubular shaft is provided in a first end region with a handle part, which has a fixed handle lever on which a pivot lever is pivotally mounted.
  • Pivoting lever on a pull lever with which the tension element, at least pivotally, is in train connection is arranged regularly on a housing-like guide housing of the stationary handle lever and connected to this usually via a union nut, a bayonet connection or a kind of locking connection.
  • tubular shaft instruments can also be provided with a so-called flushing connection, which is arranged either in the region of the guide housing or in the region of the tubular shaft itself.
  • flushing connections serve for flushing the pipe with a special cleaning liquid after use. This ensures that the tubular shaft instrument can be reused in a hygienically acceptable manner.
  • tubular shaft instruments in particular with a tubular, rigid tubular shaft
  • tubular shaft instruments with a rigid tubular shaft it would be particularly advantageous for extremely small diameter of the shank when "contaminate” as little contamination as possible during use in the tubular shaft, so that the cleaning can be accomplished optimally when flushing ⁇ through.
  • the traction element located in the tubular shaft in the form of a puller wire to the inner wall of the tubular shaft has only a minimum radial distance, whereby the rinsing is difficult.
  • tubular shaft instruments with flexible and / or small diameter are used in particular in neurology and in mini-invasive surgery, gynecology, gastrology and, for example, in the form of so-called PE forceps for sample excision.
  • tools with moving tool parts come here pincers or scissors-like instruments in question, which may be provided with one or two movable jaws or constitutionaltei ⁇ len.
  • a puller wire is provided in the tubular shaft, which with a handle-side pull lever of
  • Swivel lever is in operative connection. If the pivot lever pivoted from a "neutral" starting position into an end position, this pivoting movement is transmitted on the basis of the existing Wirkver ⁇ bond to the traction element to this, in turn, an axial displacement of the pull wire is effected in the tubular shaft.
  • the pull wire is in turn in operative connection with the movable tool parts, which in turn are in the "neutral" position of the pivot lever, for example, in an "open” starting position. Now, if the pull wire is moved axially, so this causes, for example, a pivoting movement of the tool parts, so that they can act as a kind of pliers or scissors ⁇ nen.
  • the invention is based on the object to improve a RohrschaftInstrument of the generic type such that the tubular shaft can be cleaned as optimally as possible after use and reusable.
  • the object is achieved together with the features of the preamble of claim 1, characterized in that the tubular shaft outside and / or inside is coated with a consisting of a transparent, semi-crystalline and perfluorinated polymer plastic coating.
  • a polymer is based on a perfluoroalkoxy polymer and is excellently suited for the production of such a coating.
  • the outer and / or inner coating For the preparation of the outer and / or inner coating (s), a combined process of an electrostatic process and a powder coating process can be used. With these methods, in particular coatings with extremely small wall thicknesses can be produced, which is of importance in particular for internal coating in the case of small pipe diameters. In the case of a rigid tubular shaft, an internal coating is generally sufficient.
  • the coating is designed as an antibacterial coating and / or as an extremely “smooth” coating, so that impurities can hardly "deposit". Thus, a cleaning process required after the operation is considerably improved due to the lower contamination.
  • the tubular shaft In the case of a flexible, consisting of a spiral sleeve, the tubular shaft according to claim 2, the tubular shaft is "sealed" by an inner and / or outer side coating, so that an effective full flushing on the entire length of the tubular shaft is feasible.
  • the inner coating consist of an antibacterial material.
  • the radial thickness of the inner and / or outer plastic coating is between 0.05 mm and 0.25 mm. Due to these extremely low "wall thicknesses" of the coatings, the flexible compliance of the tubular shaft in use is hardly impaired. It can further be provided according to claim 4, that the plastic coatings consist of an antibacterial effect the material or contains such a material, whereby the hygienic properties of the tubular shaft are improved. These antibacterial properties are inherent to the abovementioned material perfluoroalkoxy polymer.
  • antibacterial additives may be embedded in the plastic matrix.
  • an active ingredient for example, nanoscale, antibacterial additives may be embedded in the plastic matrix.
  • Fig. 1 is a perspective view of an inventive
  • FIG. 2 is a sectional view of the flexible tubular shaft together with a part of the coupled with this tool.
  • Fig. 1 shows an example of a possible embodiment of a tubular shaft instrument 1 with a handle part 2, a tubular shaft 3 and a tool part 4.
  • the tubular shaft 3 is formed as a flexible tubular shaft.
  • the coating (s) it should be noted that this is also to be read on a rigid tubular shaft, in particular with a small diameter of a maximum of 1 mm to 2 mm.
  • the invention is therefore not limited to a flexible tubular shaft 3.
  • the grip part 2 is arranged fixedly in a first end region 5 of the tubular shaft 3.
  • a coupling Shaped sleeve 6 is provided, which is removably attached via an upper nut 7 on the handle part 2.
  • the handle part 2 forms a first, "fixed" handle lever 8, which has a guide housing 9 in its upper end region.
  • This guide housing 9 is provided with a through hole 10 in which a pull rod 11 is guided in the direction of the double arrow 12 axially adjustable.
  • this tie rod 11 with a, not visible in Fig. 1, tension member in the form of a pull wire in train, via which in turn the tool part 4 is actuated.
  • a pivoting lever 13 is pivotally mounted on the stationary handle lever 8 via a bearing screw 14.
  • a pull lever 15 which is provided to the pull rod 11 out with a coupling groove 16.
  • the coupling groove 16 has an approximately C-shaped cross-sectional shape ", and is accordingly” tapered “towards the tension element. With this coupling groove 16, the tension rod 11 is in tension connection via a ball element 17.
  • the work tool 4 is formed with its two tool parts 20, 21 as a kind of pliers. If the pivot lever 13 is moved after carrying out this pivoting movement 1, the pull rod 11 and thus the tension element in tension therewith are correspondingly adjusted back until the two tool parts 20 and 21 are again in the closed pivot position.
  • the maximum pivot angle for the adjustment of the pivot lever 13 with its pull lever 15 in the direction of arrow 18 is selected such that in the illustrated assembled operating state, the ball element 17, in particular in the "open" pivot position of the two tool part 20 and 21 not with the Coupling groove 16 can be disengaged.
  • the tubular shaft instrument 1 is absolutely reliable.
  • the tool 4 is formed in the present embodiment as a kind of pliers, which is opened by the adjusting movement described above.
  • the maximum travel on the one hand of the pivot lever 13 in the direction of arrow 18 and on the other hand, the drawbar 11 in the direction of arrow 19 may be limited by an inner stop in the region of the guide housing 9 or in the region of the nut 7 (not visible in the drawing).
  • the tool 4 for the pivotable mounting of the two tool parts 20 and 21 can have a "fork-shaped" bearing element 24, which in turn is fixedly arranged in the region of the second end 25 of the tubular shaft 3.
  • a threaded bushing 26 may be provided, which is arranged “frontally” fixed to the second end 25 of the tubular shaft 3.
  • This threaded ⁇ debuchse 26 is preferably welded to the second end 25 of the pipe shaft 3 and can thus be sure of this taken not from ⁇ .
  • a threaded connection is provided according to the invention.
  • This threaded connection can be realized on the one hand by an internal thread of the threaded bush 26 and a corresponding threaded pin of the bearing element 24 or vice versa, by an internal thread of the bearing element 24 and a corresponding threaded pin of the threaded bush 26.
  • bearing element 24 may also be fixedly and non-detachably welded directly to the front, second end 25 of the tubular shaft 3.
  • a flushing connection 40 is provided in the region between the coupling sleeve 6 and the tubular shaft 3, softer in the
  • connection pipe is shown only schematically as a radial "connection pipe”.
  • the arrangement of this flushing connection 40 can also be provided, for example, in the region of the guide housing.
  • further embodiments of the flushing port 40 are conceivable, as is known for example from the aforementioned prior art.
  • Fig. 2 shows a partial sectional view of the second end 25 of the tubular shaft 3 formed as a spiral sleeve, on which the end face of the threaded bushing 26 is welded. Furthermore, from Fig. 2, the central pull wire 27 can be seen. This passes through the one hand, the tubular shaft 3 and on the other hand, the threaded bushing 25, which has a corresponding fürgangsbohrüng 28 for this purpose.
  • This through-hole 28 is adapted in diameter d to the diameter D of the pull rod 11 (FIG. 1), so that it can be pushed through this through-hole 28 during disassembly.
  • the bearing element 24 is shown in FIG. Recognizable, which likewise a through hole 29, the diameter may be designed to dress ⁇ ner than the diameter of fürgangsboh- If a fixed, non-detachable connection between the bearing element 24 and the tubular shaft 3, for example a welded connection is provided, then the diameters can also be dimensioned differently, since the pull wire 27 in such a case usually also during the cleaning remains in the tubular shaft 3.
  • the flexible shank 3 forms in the "stretched" or straight state shown in Fig. 2, closely spaced windings 35. These windings 35 are coated on the outside with an outer coating 36. In use, this external coating 36 reliably prevents, for example, body fluids from penetrating into the tubular shaft through the wound wall formed by the windings 35.
  • the radial thickness d1 of this coating can be between 0.05 mm and 0.25 mm, depending on the type of production.
  • the windings 35 of the flexible tubular shaft 3 are also provided on the inside with an inner coating 37. Also by this inner coating 37, the windings 35 of the tubular shaft 3 are sealed and thus form a uniform inner surface. Due to this embodiment, the inner region of the tubular shaft 3 can be flushed with a cleaning liquid. Since the spaces between the windings 35 can also be sealed by this inner coating, a flushing of the tubular shaft 3 over its entire length can be carried out safely, so that complete cleaning is ensured safely.
  • the radial thickness D2 of the inner coating 37 may also be in a range between 0.05 mm to 0.25 mm, which ultimately depends on the inner diameter of the tubular shaft and the radial distance of the puller wire 27 from the inner wall of the tubular shaft 3. It would also be conceivable to provide the tubular shaft 3 only with an outer coating 36 or only with an inner coating 37. This depends on the specific application of the tubular shaft instrument 1 of FIG. 1. If the tubular shaft is designed as a rigid tubular shaft, a "smooth" inner coating would be sufficient for optimum cleaning, by which the adhesion of impurities is made difficult, so that the cleaning when flushing the tubular shaft is more efficient.
  • the outer coating 36 and the inner coating 37 may be made of an antibacterial material.
  • the coatings 36 and / or 37 have an antibacterial effect the active ingredient.
  • Coatings 36 and 37 can be made, for example, by a combined electrostatic process and a powder coating process. These two methods have the advantage that the coatings 36 and 37 also in a very thin layer may be applied, which may be particularly important for the inner coating 37, if the tubular shaft 3 has an extremely small inner diameter of less than 1 mm.
  • fluoroplastics can be used here as materials, for example under the adcoat brand
  • This material is based on a perfluoroalkoxy polymer and is characterized by a leaflet of the trademark owner u.a. properties listed below:
  • adcoat® 31/3800 has a high dielectric strength, a low dissipation factor and a high spec. over a wide frequency range. Surface resistance.
  • this material is highly heat-resistant and can be used in continuous operation at temperatures up to 250 ° C.
  • this material is also insensitive to high temperatures during sterilization during cleaning and thus optimally applicable for the coating of flexible pipe shafts.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (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)
  • Sink And Installation For Waste Water (AREA)

Abstract

L'invention concerne un instrument à tige tubulaire (1) qui comprend une tige tubulaire (3) à une première extrémité proximale (5) de laquelle est disposé un élément de préhension (2) qui comporte un levier de préhension fixe (8) et un levier pivotant (13) pouvant pivoter par rapport au levier de préhension et à une second extrémité distale (25) de laquelle est prévu avec un outil (4) qui est muni d'élément formant palier (24) et qui est réglable par actionnement de l'élément de préhension (2) par le biais d'un élément de traction (27) disposé de façon coulissante longitudinalement dans la tige tubulaire (3) ; l'instrument à tige tubulaire (1) comporte un raccord de lavage (40) destiné au lavage de la tige tubulaire (3). Pour améliorer le nettoyage, l'invention propose de revêtir la tige tubulaire (3) du côté extérieur et/ou du côté intérieur d'un revêtement en matière plastique (36, 37).
PCT/EP2015/001641 2014-08-14 2015-08-08 Instrument à tige tubulaire pourvu d'une tige tubulaire et d'un raccord de lavage WO2016023629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202014006636.1 2014-08-14
DE202014006636.1U DE202014006636U1 (de) 2014-08-14 2014-08-14 Rohrschaftinstrument mit einem Rohrschaft und einem Spülanschluss

Publications (1)

Publication Number Publication Date
WO2016023629A1 true WO2016023629A1 (fr) 2016-02-18

Family

ID=51899806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/001641 WO2016023629A1 (fr) 2014-08-14 2015-08-08 Instrument à tige tubulaire pourvu d'une tige tubulaire et d'un raccord de lavage

Country Status (2)

Country Link
DE (1) DE202014006636U1 (fr)
WO (1) WO2016023629A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646751A (en) * 1984-05-18 1987-03-03 Diener Verwaltungs-und Beteiligungsgesellschaft m.b.H. Biopsy forceps
US5810876A (en) * 1995-10-03 1998-09-22 Akos Biomedical, Inc. Flexible forceps device
US6299630B1 (en) * 1998-10-08 2001-10-09 Olympus Optical Co., Ltd. Endoscopic procedural device
JP2002330973A (ja) * 2001-05-10 2002-11-19 Olympus Optical Co Ltd 内視鏡用処置具および内視鏡用処置具の操作部
US20070112377A1 (en) * 2005-11-09 2007-05-17 Schneiter James A Reusable laparoscopic surgical instrument
US20080051735A1 (en) * 2006-05-08 2008-02-28 Ethicon Endo-Surgery, Inc. Endoscopic translumenal surgical systems
US20090030427A1 (en) * 2002-10-04 2009-01-29 Vance Products Incorporated, D/B/A Cook Urological Incorporated Handle for interchangeable medical device
US20090287113A1 (en) * 2008-05-13 2009-11-19 Ken Freeman Reusable biopsy forceps
WO2013110640A1 (fr) * 2012-01-25 2013-08-01 Ruprecht-Karls-Universität-Heidelberg Instrument chirurgical

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048223A1 (de) 2010-10-12 2012-08-16 Martin Storz Chirurgisches Rohrschaftinstrument
DE102011008013A1 (de) 2011-01-06 2012-07-12 University Of Dundee Medizinisches Instrument
DE202011000828U1 (de) 2011-04-07 2011-06-01 Aesculap AG, 78532 Chirurgischer Instrumentenschaft und chirurgisches Instrument

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4646751A (en) * 1984-05-18 1987-03-03 Diener Verwaltungs-und Beteiligungsgesellschaft m.b.H. Biopsy forceps
US5810876A (en) * 1995-10-03 1998-09-22 Akos Biomedical, Inc. Flexible forceps device
US6299630B1 (en) * 1998-10-08 2001-10-09 Olympus Optical Co., Ltd. Endoscopic procedural device
JP2002330973A (ja) * 2001-05-10 2002-11-19 Olympus Optical Co Ltd 内視鏡用処置具および内視鏡用処置具の操作部
US20090030427A1 (en) * 2002-10-04 2009-01-29 Vance Products Incorporated, D/B/A Cook Urological Incorporated Handle for interchangeable medical device
US20070112377A1 (en) * 2005-11-09 2007-05-17 Schneiter James A Reusable laparoscopic surgical instrument
US20080051735A1 (en) * 2006-05-08 2008-02-28 Ethicon Endo-Surgery, Inc. Endoscopic translumenal surgical systems
US20090287113A1 (en) * 2008-05-13 2009-11-19 Ken Freeman Reusable biopsy forceps
WO2013110640A1 (fr) * 2012-01-25 2013-08-01 Ruprecht-Karls-Universität-Heidelberg Instrument chirurgical

Also Published As

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