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WO2002011628A1 - Lame - Google Patents

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Publication number
WO2002011628A1
WO2002011628A1 PCT/EP2001/008294 EP0108294W WO0211628A1 WO 2002011628 A1 WO2002011628 A1 WO 2002011628A1 EP 0108294 W EP0108294 W EP 0108294W WO 0211628 A1 WO0211628 A1 WO 0211628A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade according
blade
sensor
functional element
electrical functional
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/EP2001/008294
Other languages
German (de)
English (en)
Other versions
WO2002011628A8 (fr
Inventor
Erhard Kohn
Stephan Ertl
Peter Gluche
André Flöter
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.)
GFD Gesellschaft fuer Diamantprodukte mbH
Original Assignee
GFD Gesellschaft fuer Diamantprodukte mbH
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 GFD Gesellschaft fuer Diamantprodukte mbH filed Critical GFD Gesellschaft fuer Diamantprodukte mbH
Priority to AU2001289683A priority Critical patent/AU2001289683A1/en
Priority to EP01969418A priority patent/EP1318755A1/fr
Publication of WO2002011628A1 publication Critical patent/WO2002011628A1/fr
Publication of WO2002011628A8 publication Critical patent/WO2002011628A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/013—Instruments for compensation of ocular refraction ; Instruments for use in cornea removal, for reshaping or performing incisions in the cornea
    • A61F9/0133—Knives or scalpels specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00734—Aspects not otherwise provided for battery operated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/0066—Sensing and controlling the application of energy without feedback, i.e. open loop control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A61B18/082—Probes or electrodes therefor
    • A61B2018/087—Probes or electrodes therefor using semiconductors as heating element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A61B2018/1226—Generators therefor powered by a battery

Definitions

  • the present invention relates to a blade with a blade body and at least one electrical functional element in or on the blade body.
  • blades are used, for example, in medicine, in particular microsurgery, endoscopy, minimally invasive surgery as well as in general surgery, such as for example in eye operations as lancets or in skin incisions as cutting blades.
  • coagulation to stop bleeding for example in surgical use
  • Conventionally, coagulation to stop bleeding from open wounds is accomplished using a pair of pliers, tweezers, wire, or a blade that is used to compress the bleeding vessel in the case of forceps, for example, and then a high frequency current through the pliers tip 4-3
  • No. 5,792,137 shows a coagulation forceps provided with a cutting edge, which can be heated for coagulation.
  • These pliers essentially consist of a silicon substrate that is doped on its surface so that it has a high resistance.
  • silicon electrodes as electrical functional elements between which a current can flow, so that the substrate is heated. Since these pliers are heated in the depth of the substrate, adequate and rapid heat supply to the surface of the pliers cutting edge cannot be brought about; for example, local hot spots are generated.
  • a blade which consists, for example, of silicon or silicon carbide and carries electrical heating conductors as electrical functional elements on its surface. This surface is finally electrically insulated with a plastic cover.
  • the electrical heating conductors are made of metal, for example copper. This ensures sufficient heat input into the blade.
  • the plastic cover has a low thermal conductivity, which results in poor heat transfer from the inside of the blade ⁇ , 1 CD ⁇ I 1 1 I rl ..
  • SH 0 P SH SH 4-1 rö SH SH ⁇ TJ 0 -H ⁇ ⁇
  • CD ⁇ TJ Pl X rö N X! d ⁇ ⁇ J ⁇ ⁇ ro 4-3
  • TJ SH TJ TJ TJ! rl r-H ⁇ CQ ⁇ N CQ 4-3 TJ d ⁇ ⁇ 0 X! ⁇ ⁇ ⁇ ISI ⁇ CD
  • the heating phase for example the heating time and the course of the heating of the blade can be regulated in the blade according to the invention by the signal shape of the heating current supplied to the heating elements. Because of the high thermal conductivity and low heat capacity of the blade, the temperature of the blade follows the signal curve of the heating current quickly and with little delay.
  • conductive, for example boron-doped, and insulating diamond layers have similar thermal expansion coefficients, see above that no tension or damage occurs when the temperature of the blade changes.
  • silicon as used in the prior art for the blade body, has an expansion coefficient of 2.56 x 10 "6 l / K for conductive silicon layers and 0.4 x 10 " 6 for insulating silicon layers in the case of silicon dioxide l / K or, in the case of silicon nitride, 0.8 x 10 " ⁇ l / K.
  • silicon technology tension changes occur in the blade during temperature changes, so that damage occurs in a corresponding blade as in the prior art are expected.
  • Another advantage of the blade according to the invention is that diamond is known as the hardest material.
  • the blades according to the invention therefore retain prolonged use.
  • the elastic modulus of diamond is also the highest of all known materials.
  • diamond is relatively elastic with a high breaking stress of 10.5 GPa for single-crystal and 4.8 GPa for polycrystalline diamond.
  • the electrical functional element is made from very heavily doped diamond, it has no temperature dependence of its resistance. It is then suitable for the production of resistance heating elements, supply lines, electrodes, for example electrical, chemical or physiological electrodes, or also for mono- or bipolar coagulation electrodes.
  • heating element / temperature sensor combinations can be produced.
  • Hall sensors can also be used for magnetic field measurement, e.g. for location by means of nuclear magnetic resonance tomography (MR) or X-ray computed tomography (CT), chemo-sensitive components (ion-sensitive field effect transistors (FET), pH-dependent resistors), piezo-resistive sensors (pressure, force, acceleration), radiation sensors (UV, X-ray, gamma radiation) or flow sensors.
  • MR nuclear magnetic resonance tomography
  • CT X-ray computed tomography
  • FET chemo-sensitive components
  • pH-dependent resistors pH-dependent resistors
  • piezo-resistive sensors pressure, force, acceleration
  • radiation sensors UV, X-ray, gamma radiation
  • flow sensors d ⁇ 1 1 l xi 1 1 I ⁇
  • CD N SH ⁇ CD -. d rö J d ⁇ 4-1 SH CD xi CD 4-1 CQ TJ TJ ⁇ CQ • ⁇ TJ P ⁇
  • SH J P SH ⁇ d rö rö CQ 00 ⁇ ⁇ Pl rö r- P d 0 0 rö TJ CQ N ⁇ -rl
  • CD ⁇ Pl d ⁇ rl o ⁇ rH -rl CQ rl ⁇ 4-3 ⁇ d ⁇ SH 4-1 rl CQ ü rl or rl CD P d> CQ -H CD ⁇ TJ rl ⁇ CQ -rl ⁇ TJ C ⁇ CQ ⁇ r- ⁇ X CD CD CQ ⁇ CQ -rl P CD -. ⁇
  • FIG. 1 shows a heatable blade with a monolithically integrated temperature sensor
  • Figure 2 shows a cross section of the heatable blade of Figure 1 along the line A-A ';
  • Figure 3 shows a cross section through the heatable
  • Blade according to Figure 1 along the lines BB 1 ;
  • Figure 4 shows another heatable blade.
  • Figure 1 shows a heatable blade 1, with a blade body 8 made of diamond, which has a curved cutting edge 6.
  • heating conductors 2 made of highly doped diamond regions, for example doped with boron, on the surface of the blade body 8. These heating conductors are connected to metallizations 5 at one end of the blade body 8, via which an electrical voltage can be applied to the heating conductors 2.
  • the heating conductors 2 save an area on the blade surface in which a temperature sensor 3 with supply lines 4 is arranged.
  • the supply lines 4 are also connected to metallizations 5 in order to apply an electrical voltage to them.
  • the temperature sensor 3 consists of p ⁇ -doped diamond.
  • the respective endowments can already be introduced into the blade body 8 in a conventional manner during the manufacturing process. It is also possible to have the blade body 8 grown on a substrate, for example by means of the CVD method, and to incorporate the doping into the diamond of the blade body during the growth process.
  • FIG. 2 shows a section through a blade according to FIG. 1, the same reference numerals as in FIG. 1 designating corresponding elements.
  • the blade body 8 has an insulating diamond layer 11 which is arranged on a silicon substrate 10.
  • This diamond layer 12 also forms the cutting edge 6.
  • the temperature sensor 3 consists of doped diamond, and the temperature dependence of the resistance value can be adjusted via the level of the dopant concentration.
  • the temperature sensor 3 can also be produced during or immediately after the production of the diamond layers 11 and 12 on the substrate 10 by doping the growing diamond, with one also
  • Etching process can be provided in order to separate the temperature sensor 3 from the p + -doped heating conductors 2.
  • FIG. 3 shows a further section through the blade according to FIG. 1 along the line BB 1 .
  • Similar elements are denoted by the same reference numerals so that their description is partially omitted. It can be seen that only the supply lines 4 for the temperature sensor are now present in the central region of the blade.
  • a metallization 5 is provided on the diamond layer 12 of the p + -doped heating conductors 2 in the area of the section BB 'on both sides of the feed lines 4, which is in electrical contact with the p + -doped heating conductors 2.
  • a voltage can now be applied to the p + -doped regions of the heating conductors 2 via these metallizations 5 in order to heat the blade.
  • FIGS. 1 to 3 can be designed such that no silicon substrate 10 is present. However, all other elements of the blade are as they appear from Figures 1 to 3.
  • FIG. 4 shows a further example of a heatable blade, similar elements again being identified here with the same reference symbols and their description therefore being at least partially omitted.
  • the blade from FIG. 4 is a lancet with cutting edges 6, 6 'which form a tip.
  • a temperature sensor 3 with supply lines 4 is provided, which can be supplied with voltage via metallizations 5 '.
  • the heating conductors are not shown in FIG. 4, but are arranged in strips in the same way as in FIG. These heating conductors are contacted via the metallizations 5, as a result of which they can be supplied with voltage. The remaining areas can be used for contacting further functional elements.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Ophthalmology & Optometry (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Surgical Instruments (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne une lame comportant un corps de lame et au moins un élément fonctionnel électrique dans/ ou sur le corps de lame, caractérisé en ce que le corps de lame est formé, au moins partiellement, en diamant et présente, comme élément fonctionnel électrique, des régions en diamant électro-conductrices.
PCT/EP2001/008294 2000-08-04 2001-07-18 Lame Ceased WO2002011628A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001289683A AU2001289683A1 (en) 2000-08-04 2001-07-18 Blade
EP01969418A EP1318755A1 (fr) 2000-08-04 2001-07-18 Lame avec un corps se composant partiellement de diamant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000138015 DE10038015A1 (de) 2000-08-04 2000-08-04 Klinge
DE10038015.8 2000-08-04

Publications (2)

Publication Number Publication Date
WO2002011628A1 true WO2002011628A1 (fr) 2002-02-14
WO2002011628A8 WO2002011628A8 (fr) 2002-04-04

Family

ID=7651289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/008294 Ceased WO2002011628A1 (fr) 2000-08-04 2001-07-18 Lame

Country Status (4)

Country Link
EP (1) EP1318755A1 (fr)
AU (1) AU2001289683A1 (fr)
DE (1) DE10038015A1 (fr)
WO (1) WO2002011628A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015220917A1 (de) * 2015-10-27 2017-04-27 Robert Bosch Gmbh Skalpellklinge, Skalpell, Verfahren zum Betreiben eines Skalpells und Verfahren zum Herstellen einer Skalpellklinge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220008249A1 (en) * 2020-07-07 2022-01-13 Johnson & Johnson Surgical Vision, Inc. Ophthalmic curette

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481057A (en) * 1980-10-28 1984-11-06 Oximetrix, Inc. Cutting device and method of manufacture
US4627435A (en) * 1983-05-14 1986-12-09 Micra Limited Surgical knives
US5423840A (en) * 1992-04-08 1995-06-13 Chiron Vision Corporation Keratorefractive diamond blade and surgical method
EP0658066A2 (fr) * 1993-12-09 1995-06-14 Sumitomo Electric Industries, Limited Elément de chauffe en diamant
US5488350A (en) * 1994-01-07 1996-01-30 Michigan State University Diamond film structures and methods related to same
US5777372A (en) * 1995-03-01 1998-07-07 Kabushiki Kaisha Kobe Seiko Sho Diamond film biosensor
WO2001050964A2 (fr) * 2000-01-12 2001-07-19 Clinicon Technologies, Inc. Instruments chirurgicaux de coupe et de cauterisation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485810A (en) * 1980-10-28 1984-12-04 Oximetrix, Inc. Surgical cutting blade
US5792137A (en) * 1995-10-27 1998-08-11 Lacar Microsystems, Inc. Coagulating microsystem
DE19734506A1 (de) * 1997-08-08 1999-02-25 Stockert Gmbh Vorrichtung für die Hochfrequenzbehandlung von Körpergewebe
WO1999040858A1 (fr) * 1998-02-17 1999-08-19 Iti Medical Technologies, Inc. Lame electrochirurgicale configuree de maniere a augmenter la facilite de coupe et a reduire la production de fumee et l'adherence d'escarres

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481057A (en) * 1980-10-28 1984-11-06 Oximetrix, Inc. Cutting device and method of manufacture
US4627435A (en) * 1983-05-14 1986-12-09 Micra Limited Surgical knives
US5423840A (en) * 1992-04-08 1995-06-13 Chiron Vision Corporation Keratorefractive diamond blade and surgical method
EP0658066A2 (fr) * 1993-12-09 1995-06-14 Sumitomo Electric Industries, Limited Elément de chauffe en diamant
US5488350A (en) * 1994-01-07 1996-01-30 Michigan State University Diamond film structures and methods related to same
US5777372A (en) * 1995-03-01 1998-07-07 Kabushiki Kaisha Kobe Seiko Sho Diamond film biosensor
WO2001050964A2 (fr) * 2000-01-12 2001-07-19 Clinicon Technologies, Inc. Instruments chirurgicaux de coupe et de cauterisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015220917A1 (de) * 2015-10-27 2017-04-27 Robert Bosch Gmbh Skalpellklinge, Skalpell, Verfahren zum Betreiben eines Skalpells und Verfahren zum Herstellen einer Skalpellklinge

Also Published As

Publication number Publication date
EP1318755A1 (fr) 2003-06-18
WO2002011628A8 (fr) 2002-04-04
AU2001289683A1 (en) 2002-02-18
DE10038015A1 (de) 2002-02-21

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