WO1997018745A2 - Schab- bzw. schneidinstrument - Google Patents
Schab- bzw. schneidinstrument Download PDFInfo
- Publication number
- WO1997018745A2 WO1997018745A2 PCT/DE1996/002213 DE9602213W WO9718745A2 WO 1997018745 A2 WO1997018745 A2 WO 1997018745A2 DE 9602213 W DE9602213 W DE 9602213W WO 9718745 A2 WO9718745 A2 WO 9718745A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- instrument according
- channel
- blade
- instrument
- rinsing
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
-
- 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
Definitions
- the invention relates to a scraping or cutting instrument with a rotating blade, which has a scraping or cutting area at its distal end, according to the preamble of claim 1.
- Such scraping or cutting instruments which are also referred to as shavers, are used in endoscopic operations, such as, for example, in microarthroplastic operations.
- Generic scraping or cutting instruments have at least one blade which is rotated at a speed of up to 1600 revolutions per minute or more.
- the blade is connected to a motor arranged in the proximal area of the instrument via a shaft.
- the shaft can be designed as a hollow shaft.
- the channel formed thereby is connected to a suction opening in the end region of the generally cylindrical blades. This makes it possible to draw off liquid and cut tissue parts through the blade.
- scraping or cutting instruments there is the problem that scraped or cut tissue parts can adhere to the blade, so that contamination, "clogging" of the blade and / or carryover of tissue parts can occur.
- the invention has for its object to develop a scraping or cutting instrument according to the preamble of claim 1 such that the application of tissue parts on the blade is avoided.
- a rinsing channel is additionally provided, through which a rinsing liquid is passed to the distal end for cleaning the blade and for supporting the extraction of the cut or scraped-off tissue parts.
- the rinsing liquid preferably does not enter the body cavity in which the instrument is inserted, but is immediately sucked off again after it has washed around the blade and thus cleaned it (claim 11).
- the instrument according to the invention can thus not only be used in organs filled with irrigation fluid, as is the case in arthroscopy, but also in areas of the body which cannot be filled with irrigation fluid. should.
- the instrument according to the invention can thus be used, for example, in ENT surgery, for example in the nasal cavity area.
- the rinsing channel provided according to the invention not only cleans the blade, but also reduces the risk of clogging in the case of small-lumen suction channels, which typically have an inside diameter of 1 to 3 mm in the ENT area.
- the suction channel is arranged centrally.
- the suction channel can in particular be provided in the drive tube of the rotating blade.
- a handpiece is provided which receives the drive unit and which is in particular designed such that the operator can use the instrument according to the invention ergonomically.
- the basic idea according to the invention of additionally providing a flushing channel in a generic scraping or cutting instrument, can in principle be used in instruments of any design, such as, for example, instruments which only have a rotating blade.
- the basic idea according to the invention is particularly advantageous in the case of instruments which have a rotating inner blade and a fixed outer blade (claim 4). With these instruments, it is particularly common for cut tissue parts to become lodged in the narrow gap between the inner and outer blades.
- claims 5 to 8 different alternatives for the arrangement of the rinsing channel are specified.
- the gap between the inner and outer blades can form the rinsing channel.
- This design has the advantage that it cleans the gap particularly effectively, but the increased design effort may be disadvantageous.
- the specified in claims 6 and 7 Alternatives are structurally comparatively easy to implement.
- a hollow shaft is provided, into which the blade and the tube attached to it are inserted such that the rinsing channel is formed between the tube and the shaft.
- the hollow shaft is preferably arranged so that the flushing channel coaxially surrounds the blade and the tube (claim 9).
- the cleaning of the instrument is made considerably easier by the development specified in claim 10, according to which the hollow shaft is detachably attached to the handpiece.
- the basic principles of the invention can preferably be applied to an instrument in which the scraping or cutting area is provided on the side of the blade in a manner known per se, and in which the end face of the hollow shaft runs obliquely in the direction of the longitudinal axis. Without the use of a flushing channel, the risk of clogging of the blades is particularly high in the known instruments of this type.
- the outlet opening for the rinsing liquid is designed such that at least the majority of the rinsing liquid emerges in the area. which is not used for scraping or cutting (claims 14 and 15) ..
- connection for the irrigation channel encloses an angle of 90 ° with the longitudinal axis of the instrument (claim 17)
- connection for the irrigation channel in the direction of the proximal end in front of the handpiece is provided so that the outer blade is rotatable relative to the handpiece.
- Figure la shows a cross section through a first
- Figure 2a shows a cross section through a second
- FIG. 2b and 2c sections at A-A and B-B in Figure 2a
- the instrument according to the invention shown in Figure la has an inner blade 1 and an outer blade 2 in a known manner.
- the outer blade 2 is fixed and, in the exemplary embodiment shown, is connected to a proximally arranged base part 4 of the instrument by means of an outer tube 3.
- the inner blade 1 is connected via a rotatably mounted tube 5 to a drive unit, not shown, which rotates the inner blade 1 relative to the base part 4 and thus to the fixed outer blade 2.
- a suction channel 6 is provided in the tube 5 and is connected at its distal end to a suitable suction pump, not shown.
- a flushing channel is provided in the exemplary embodiment shown, through which a flushing pump, not shown, pumps a flushing liquid from a connecting piece 7 to the distal end.
- the rinsing channel 8 is attached to the tube 3 of the outer blade 2.
- FIGS. 1b and 1c which show a section at A-A in FIG. 1a, show two possibilities for the arrangement of the rinsing channel 8.
- FIG. 2a shows an alternative for the arrangement of the flushing channel 8, the same parts being provided with the same reference symbols as in FIG. 1.
- the rinsing channel 8 coaxially surrounds the tube 5 of the inner blade 1.
- FIGS. 2b and 2c show sections at A-A and B-B in FIG. 2a.
- FIG. 3 shows the proximal area of an embodiment, in which the connection 7 for the irrigation channel is not parallel to the longitudinal axis of the instrument, but below is arranged at an angle of 90 ° to the longitudinal axis.
- the connection 7, which is designed, for example, as a Luer lock, is arranged in a part 9 which is separate from the rest of the instrument, so that it can be rotated about the instrument's longitudinal axis.
- Reference number 10 schematically denotes the handpiece with the motor for driving the inner blade.
- the scraping or cutting instrument designed according to the invention can be used in the same way as conventional instruments in connection with the usual endoscopic instruments.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (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)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/077,180 US6042593A (en) | 1995-11-20 | 1996-11-20 | Shaving or cutting instrument |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19543259 | 1995-11-20 | ||
DE19543259.2 | 1995-11-20 | ||
DE19633124.2 | 1996-08-16 | ||
DE19633124A DE19633124B4 (de) | 1995-11-20 | 1996-08-16 | Schab- bzw. Schneidinstrument |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997018745A2 true WO1997018745A2 (de) | 1997-05-29 |
WO1997018745A3 WO1997018745A3 (de) | 1997-06-26 |
Family
ID=26020518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/002213 WO1997018745A2 (de) | 1995-11-20 | 1996-11-20 | Schab- bzw. schneidinstrument |
Country Status (2)
Country | Link |
---|---|
US (1) | US6042593A (de) |
WO (1) | WO1997018745A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20021932U1 (de) * | 2000-12-23 | 2002-05-02 | Stryker Trauma Gmbh | Instrument für die Preparierung eines Knochenkanals |
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US5685838A (en) * | 1995-04-17 | 1997-11-11 | Xomed-Treace, Inc. | Sinus debrider apparatus |
DE29901723U1 (de) | 1999-02-02 | 2000-06-29 | Synthes Ag | Vorrichtung zur Gewinnung von Knochenspänen |
EP1148825B1 (de) | 1999-02-03 | 2005-03-16 | SYNTHES AG Chur | Chirurgischer bohrer |
US6689146B1 (en) | 1999-04-29 | 2004-02-10 | Stryker Corporation | Powered surgical handpiece with integrated irrigator and suction application |
US6783533B2 (en) | 2001-11-21 | 2004-08-31 | Sythes Ag Chur | Attachable/detachable reaming head for surgical reamer |
US7247161B2 (en) * | 2002-03-22 | 2007-07-24 | Gyrus Ent L.L.C. | Powered surgical apparatus, method of manufacturing powered surgical apparatus, and method of using powered surgical apparatus |
US6958071B2 (en) * | 2002-07-13 | 2005-10-25 | Stryker Corporation | Surgical tool system |
DE10245009B4 (de) | 2002-09-20 | 2007-09-06 | Karl Storz Gmbh & Co. Kg | Medizinisches Instrument zum Saugen und Spülen und Verfahren zu seiner Herstellung |
ATE493091T1 (de) * | 2004-03-30 | 2011-01-15 | Proxy Biomedical Ltd | Behandeltes chirurgisches mesh aus monofilen fasern |
US7276032B2 (en) * | 2004-09-29 | 2007-10-02 | Ethicon Endo-Surgery, Inc. | Biopsy apparatus and method |
US20060074345A1 (en) | 2004-09-29 | 2006-04-06 | Hibner John A | Biopsy apparatus and method |
US7740594B2 (en) * | 2004-09-29 | 2010-06-22 | Ethicon Endo-Surgery, Inc. | Cutter for biopsy device |
US20060074344A1 (en) * | 2004-09-29 | 2006-04-06 | Hibner John A | Fluid control for biopsy device |
US7740596B2 (en) * | 2004-09-29 | 2010-06-22 | Ethicon Endo-Surgery, Inc. | Biopsy device with sample storage |
US20070060935A1 (en) * | 2005-07-11 | 2007-03-15 | Schwardt Jeffrey D | Apparatus and methods of tissue removal within a spine |
USRE46135E1 (en) | 2005-08-05 | 2016-09-06 | Devicor Medical Products, Inc. | Vacuum syringe assisted biopsy device |
US7867173B2 (en) | 2005-08-05 | 2011-01-11 | Devicor Medical Products, Inc. | Biopsy device with replaceable probe and incorporating vibration insertion assist and static vacuum source sample stacking retrieval |
US7854707B2 (en) | 2005-08-05 | 2010-12-21 | Devicor Medical Products, Inc. | Tissue sample revolver drum biopsy device |
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US20090031871A1 (en) * | 2006-06-08 | 2009-02-05 | Malandain Hugues F | Dual cutting element tool for debulking bone |
US20080045986A1 (en) * | 2006-06-30 | 2008-02-21 | Atheromed, Inc. | Atherectomy devices and methods |
US9492192B2 (en) * | 2006-06-30 | 2016-11-15 | Atheromed, Inc. | Atherectomy devices, systems, and methods |
US8361094B2 (en) | 2006-06-30 | 2013-01-29 | Atheromed, Inc. | Atherectomy devices and methods |
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US20110112563A1 (en) * | 2006-06-30 | 2011-05-12 | Atheromed, Inc. | Atherectomy devices and methods |
US20090018566A1 (en) * | 2006-06-30 | 2009-01-15 | Artheromed, Inc. | Atherectomy devices, systems, and methods |
US8007506B2 (en) | 2006-06-30 | 2011-08-30 | Atheromed, Inc. | Atherectomy devices and methods |
US20080058674A1 (en) * | 2006-08-29 | 2008-03-06 | Lex Jansen | Tissue extraction device and method of using the same |
US20080058673A1 (en) * | 2006-08-29 | 2008-03-06 | Lex Jansen | Tissue extraction device and method of using the same |
ES2279733B1 (es) * | 2006-11-27 | 2008-08-16 | Rudolf Morgenstern Lopez | Dispositivo para eliminacion de tejido en operaciones endoscopicas. |
US8702623B2 (en) * | 2008-12-18 | 2014-04-22 | Devicor Medical Products, Inc. | Biopsy device with discrete tissue chambers |
US20140039343A1 (en) | 2006-12-13 | 2014-02-06 | Devicor Medical Products, Inc. | Biopsy system |
US9345457B2 (en) | 2006-12-13 | 2016-05-24 | Devicor Medical Products, Inc. | Presentation of biopsy sample by biopsy device |
US8070762B2 (en) | 2007-10-22 | 2011-12-06 | Atheromed Inc. | Atherectomy devices and methods |
US8236016B2 (en) | 2007-10-22 | 2012-08-07 | Atheromed, Inc. | Atherectomy devices and methods |
US20090270862A1 (en) * | 2008-04-25 | 2009-10-29 | Greg Arcenio | Medical device with one-way rotary drive mechanism |
US20090270892A1 (en) * | 2008-04-25 | 2009-10-29 | Greg Arcenio | Steerable medical device for tissue disruption |
US20090270893A1 (en) * | 2008-04-25 | 2009-10-29 | Greg Arcenio | Medical device for tissue disruption with serrated expandable portion |
US20100030216A1 (en) * | 2008-07-30 | 2010-02-04 | Arcenio Gregory B | Discectomy tool having counter-rotating nucleus disruptors |
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US9005203B2 (en) | 2009-09-24 | 2015-04-14 | Imds, Llc | Reciprocating surgical instruments |
US9033986B2 (en) | 2009-09-24 | 2015-05-19 | Imds, Llc | Reciprocating surgical instrument |
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US9820825B2 (en) | 2015-02-20 | 2017-11-21 | Gyrus Acmi Inc. | Surgical system having plurality of detachably attachable components and circuit for detecting target states of detachably attachable components and performing control based on detected target states, and method for providing surgical system |
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US20180344993A1 (en) * | 2017-05-31 | 2018-12-06 | Robert A. Ganz | Blockage clearing devices, systems, and methods |
CA3070544A1 (en) | 2017-07-25 | 2019-01-31 | Stryker European Holdings I, Llc | Irrigation sleeves for use with surgical systems |
US11185345B2 (en) * | 2018-01-31 | 2021-11-30 | Gyrus Acmi, Inc. | Debrider with external irrigation supply channel |
US11304723B1 (en) | 2020-12-17 | 2022-04-19 | Avantec Vascular Corporation | Atherectomy devices that are self-driving with controlled deflection |
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1996
- 1996-11-20 US US09/077,180 patent/US6042593A/en not_active Expired - Lifetime
- 1996-11-20 WO PCT/DE1996/002213 patent/WO1997018745A2/de active Application Filing
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US3844272A (en) * | 1969-02-14 | 1974-10-29 | A Banko | Surgical instruments |
US4517977A (en) * | 1981-07-24 | 1985-05-21 | Unisearch Limited | Co-axial tube surgical infusion/suction cutter tip |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20021932U1 (de) * | 2000-12-23 | 2002-05-02 | Stryker Trauma Gmbh | Instrument für die Preparierung eines Knochenkanals |
Also Published As
Publication number | Publication date |
---|---|
US6042593A (en) | 2000-03-28 |
WO1997018745A3 (de) | 1997-06-26 |
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