WO1997030669A1 - Electrical tool for erosion of the structure of the human intraocular lens anterior capsula - Google Patents

Electrical tool for erosion of the structure of the human intraocular lens anterior capsula Download PDF

Info

Publication number
WO1997030669A1
WO1997030669A1 PCT/CZ1997/000007 CZ9700007W WO9730669A1 WO 1997030669 A1 WO1997030669 A1 WO 1997030669A1 CZ 9700007 W CZ9700007 W CZ 9700007W WO 9730669 A1 WO9730669 A1 WO 9730669A1
Authority
WO
WIPO (PCT)
Prior art keywords
operational loop
electrical
leads
erosion
intraocular lens
Prior art date
Application number
PCT/CZ1997/000007
Other languages
French (fr)
Inventor
Petr S^¿VRC^¿EK
Jan TOVARYS^¿
Original Assignee
Svrcek Petr
Tovarys Jan
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 Svrcek Petr, Tovarys Jan filed Critical Svrcek Petr
Priority to AU15888/97A priority Critical patent/AU1588897A/en
Publication of WO1997030669A1 publication Critical patent/WO1997030669A1/en

Links

Classifications

    • 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
    • A61B18/10—Power sources therefor
    • 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
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00754—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments for cutting or perforating the anterior lens capsule, e.g. capsulotomes
    • 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
    • A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control

Definitions

  • the invention relates to electrical tool for erosion of the structure of the human intraocular lens anterior capsula, especially suitable for use during cataract surgery on the eye.
  • the tool for erosion of the structure of the anterior capsula of the human intraocular lens considerably reduces the above-mentioned disadvantages of the prior art.
  • the tool consists of an operational loop, flat closed curve-shaped with an area from 7 mm 2 to 115 mm 2 , formed by an elastic electrical wire with a cross section from 0.002 mm 2 to 0.5 mm 2 , mechanically connected to a holder formed by one or two hollow cylindrical bushings made of a dielectric material with minimum diameter of 0.5 mm and minimum length of 5 mm. At least one electrical lead goes through each bushing, one end of which is connected to the power supply with current controller and the other to the operational loop.
  • One aspect of the invention is that the operational loop and the leads have the same cross section and the same material.
  • the operational loop and the leads are made of different materials, the leads being made of a material with lower specific electrical resistance than the operational loop material.
  • Vet another aspect of the invention is that the operational loop and leads have different cross sections, the leads-in being made from wires with a larger cross section than that of the operational loop wire.
  • the advantage of the electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens according to the invention is possibility of one-shot approximately round erosion of the structure of the anterior capsula of the human intraocular lens in a predefined shape of the operational loop.
  • the electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens consists of an operational loop 1. made from platinum wire with a cross section 0.02 mm 2 .
  • the operational loop 1 is round-shaped with diameter 5.5 mm. This means that the operational loop 1, circle area is 23.74 mm 2 .
  • the operational loop _l is mechanically connected to a holder 2 formed by two hollow bushings 2 mutually longitudinally connected by an adhesive.
  • the bushings 2. are cylindrical-shaped of diameter 0.5 mm and length 50 mm and are made of ceramics.
  • One electrical platinum wire with a cross section 0.003 mm 2 goes through each of the bushings 2 and forms an electrical lead-in 4 . .
  • Each of the lead-in 4. wires has one end connected over the current controller converter 6 . formed by a thyristor frequency converter and a voltage transformer to the power supply 5 . and the other end to the operational loop JL.
  • the electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens according to the invention is adapted to use in the formation of the circular hole in the anterior and posterior capsula of the human intraocular lens.

Abstract

An electrical tool for erosion of the structure of the human intraocular lens anterior capsula is disclosed. It comprises an operational loop (1), flat closed curve-shaped with an area from 7 mm2 to 115 mm2 formed by an elastic electrical wire with cross section from 0.002 to 0.5 mm2, mechanically connected to a holder (3) formed by one or two hollow cylindrical bushings (2) made of a dielectric material with minimum diameter 0.5 and minimum length 5 mm, at least one electrical lead (4) going through each of the bushings (2), one end of which is connected to the power supply (5) over the current controller (6) and the other end to the operational loop (1).

Description

Electrical tool for erosion of the structure of the human intraocular lens anterior capsula
Technical Field
The invention relates to electrical tool for erosion of the structure of the human intraocular lens anterior capsula, especially suitable for use during cataract surgery on the eye.
Background of the Invention
Mechanical scalpels (cystotoms) are mostly used as tools for eroding the structure of the anterior capsula of the human intraocular lens. The application of a diathermocoagulation needle which gradually pierces the anterior capsula, is also generally known.
Summary of the Invention
The tool for erosion of the structure of the anterior capsula of the human intraocular lens according to the invention considerably reduces the above-mentioned disadvantages of the prior art. The tool consists of an operational loop, flat closed curve-shaped with an area from 7 mm2 to 115 mm2, formed by an elastic electrical wire with a cross section from 0.002 mm2 to 0.5 mm2, mechanically connected to a holder formed by one or two hollow cylindrical bushings made of a dielectric material with minimum diameter of 0.5 mm and minimum length of 5 mm. At least one electrical lead goes through each bushing, one end of which is connected to the power supply with current controller and the other to the operational loop. One aspect of the invention is that the operational loop and the leads have the same cross section and the same material.
Another aspect of the invention iε that the operational loop and the leads are made of different materials, the leads being made of a material with lower specific electrical resistance than the operational loop material.
Vet another aspect of the invention is that the operational loop and leads have different cross sections, the leads-in being made from wires with a larger cross section than that of the operational loop wire.
The advantage of the electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens according to the invention is possibility of one-shot approximately round erosion of the structure of the anterior capsula of the human intraocular lens in a predefined shape of the operational loop.
Brief Description of the Drawing
A solution according to the invention is explained in more detail with respect to the attached Figure which is a schematic view of the partially block diagram of an electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens.
Detailed Description of the Invention
The electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens consists of an operational loop 1. made from platinum wire with a cross section 0.02 mm2. The operational loop 1 is round-shaped with diameter 5.5 mm. This means that the operational loop 1, circle area is 23.74 mm2. The operational loop _l is mechanically connected to a holder 2 formed by two hollow bushings 2 mutually longitudinally connected by an adhesive. The bushings 2. are cylindrical-shaped of diameter 0.5 mm and length 50 mm and are made of ceramics. One electrical platinum wire with a cross section 0.003 mm2 goes through each of the bushings 2 and forms an electrical lead-in 4.. Each of the lead-in 4. wires has one end connected over the current controller converter 6. formed by a thyristor frequency converter and a voltage transformer to the power supply 5. and the other end to the operational loop JL.
Industrial Usability
The electrical tool for erosion of the structure of the anterior capsula of the human intraocular lens according to the invention is adapted to use in the formation of the circular hole in the anterior and posterior capsula of the human intraocular lens.

Claims

Claims
1. An electrical tool for erosion of the structure of the human intraocular lens anterior capsula, characterized in that it comprises an operational loop (1), flat closed curve-shaped with an area from 7 mm2 to 115 mm2 formed by an elastic electrical wire with cross section from 0.002 to 0.5 mm2, mechanically connected to a holder (3) formed by one or two hollow cylindrical bushings (2) made of an dielectric material with minimum diameter 0.5 and minimum length 5 mm, at least one electrical lead (4) going through each of the bushings (2), one end of which is connected to the power supply (5) over the current controller (6) and the other end to the operational loop (1).
2. The electrical tool of claim 1, characterized in that the operational loop (1) and the leads (4) have the same cross section and the same material.
3. The electrical tool of claim 1, characterized in that the operational loop (1) and the leads (4) are made of different materials, leads (4) being made' of a material with lower electric specific resistance than operational loop (1) material.
4. The electrical tool of claim 1, characterized in that the operational loop (1) and leads (4) have different cross sections, the leads-in (4) being made from wires with a larger cross section than that of the operational loop (1) wire.
PCT/CZ1997/000007 1996-02-22 1997-02-20 Electrical tool for erosion of the structure of the human intraocular lens anterior capsula WO1997030669A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15888/97A AU1588897A (en) 1996-02-22 1997-02-20 Electrical tool for erosion of the structure of the human intraocular lens anterior capsula

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ502596 1996-02-22
CZPUV5025-96 1996-02-22

Publications (1)

Publication Number Publication Date
WO1997030669A1 true WO1997030669A1 (en) 1997-08-28

Family

ID=5468428

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ1997/000007 WO1997030669A1 (en) 1996-02-22 1997-02-20 Electrical tool for erosion of the structure of the human intraocular lens anterior capsula

Country Status (2)

Country Link
AU (1) AU1588897A (en)
WO (1) WO1997030669A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010410A1 (en) * 1998-12-16 2000-06-21 Optisoins SA Surgical instrument for cutting the lens capsule
EP1809196A2 (en) * 2004-11-09 2007-07-25 Alcon Inc. Capsularhexis device
KR20110084887A (en) * 2008-10-13 2011-07-26 알콘 리서치, 리미티드 Capsularhexis device with flexible heating element
WO2011135592A2 (en) * 2010-04-30 2011-11-03 Amol Kadu Surgical apparatus
US8137344B2 (en) 2008-12-10 2012-03-20 Alcon Research, Ltd. Flexible, automated capsulorhexis device
JP2012528676A (en) * 2009-06-03 2012-11-15 アルコン リサーチ， リミテッド A capsulotomy device with a flexible heating element having an angled transition neck
JP2012528675A (en) * 2009-06-03 2012-11-15 アルコン リサーチ， リミテッド Incision repair device and incision repair method
USD737438S1 (en) 2014-03-04 2015-08-25 Novartis Ag Capsulorhexis handpiece
US9149388B2 (en) 2010-09-29 2015-10-06 Alcon Research, Ltd. Attenuated RF power for automated capsulorhexis
US9241755B2 (en) 2010-05-11 2016-01-26 Alcon Research, Ltd. Capsule polishing device and method for capsule polishing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941060A1 (en) * 1978-10-12 1980-04-17 Olympus Optical Co HIGH-FREQUENCY RESECTION DEVICE
DE3247793A1 (en) * 1981-12-31 1983-07-14 Harald 7200 Tuttlingen Maslanka HIGH FREQUENCY SURGICAL SINGLE ELECTRODE
US4732150A (en) * 1984-06-14 1988-03-22 Keener Jr Gerald T Process for cataract extraction
US4766897A (en) * 1987-06-16 1988-08-30 Heinz Smirmaul Capsulectomy surgical instrument

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941060A1 (en) * 1978-10-12 1980-04-17 Olympus Optical Co HIGH-FREQUENCY RESECTION DEVICE
DE3247793A1 (en) * 1981-12-31 1983-07-14 Harald 7200 Tuttlingen Maslanka HIGH FREQUENCY SURGICAL SINGLE ELECTRODE
US4732150A (en) * 1984-06-14 1988-03-22 Keener Jr Gerald T Process for cataract extraction
US4766897A (en) * 1987-06-16 1988-08-30 Heinz Smirmaul Capsulectomy surgical instrument

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010410A1 (en) * 1998-12-16 2000-06-21 Optisoins SA Surgical instrument for cutting the lens capsule
WO2000035392A1 (en) * 1998-12-16 2000-06-22 Optisoins Sa Capsulotomy surgical instrument
EP1809196A2 (en) * 2004-11-09 2007-07-25 Alcon Inc. Capsularhexis device
EP1809196A4 (en) * 2004-11-09 2008-03-19 Alcon Inc Capsularhexis device
TWI494098B (en) * 2008-10-13 2015-08-01 Alcon Res Ltd Capsularhexis device with flexible heating element
KR20110084887A (en) * 2008-10-13 2011-07-26 알콘 리서치, 리미티드 Capsularhexis device with flexible heating element
KR101649105B1 (en) * 2008-10-13 2016-08-19 알콘 리서치, 리미티드 Capsularhexis device with flexible heating element
JP2012505067A (en) * 2008-10-13 2012-03-01 アルコン リサーチ， リミテッド Sactomy device with flexible heating element
US9125720B2 (en) 2008-10-13 2015-09-08 Alcon Research, Ltd. Capsularhexis device with flexible heating element
US8137344B2 (en) 2008-12-10 2012-03-20 Alcon Research, Ltd. Flexible, automated capsulorhexis device
JP2012528675A (en) * 2009-06-03 2012-11-15 アルコン リサーチ， リミテッド Incision repair device and incision repair method
US8814854B2 (en) 2009-06-03 2014-08-26 Alcon Research, Ltd. Capsulotomy repair device and method for capsulotomy repair
JP2012528676A (en) * 2009-06-03 2012-11-15 アルコン リサーチ， リミテッド A capsulotomy device with a flexible heating element having an angled transition neck
WO2011135592A2 (en) * 2010-04-30 2011-11-03 Amol Kadu Surgical apparatus
WO2011135592A3 (en) * 2010-04-30 2011-12-22 Amol Kadu Surgical apparatus
US9241755B2 (en) 2010-05-11 2016-01-26 Alcon Research, Ltd. Capsule polishing device and method for capsule polishing
US9149388B2 (en) 2010-09-29 2015-10-06 Alcon Research, Ltd. Attenuated RF power for automated capsulorhexis
US9351872B2 (en) 2010-09-29 2016-05-31 Alcon Research, Ltd. Attenuated RF power for automated capsulorhexis
USD737438S1 (en) 2014-03-04 2015-08-25 Novartis Ag Capsulorhexis handpiece

Also Published As

Publication number Publication date
AU1588897A (en) 1997-09-10

Similar Documents

Publication Publication Date Title
US4589411A (en) Electrosurgical spark-gap cutting blade
WO1997030669A1 (en) Electrical tool for erosion of the structure of the human intraocular lens anterior capsula
AU670258B2 (en) Electrosurgical bipolar cutting handpiece
RU2001107852A (en) ELECTRIC CATHETER TO ENSURE STENOSIS OF A VESSEL HAVING TWO SETS OF DIVERSING ELECTRODES
JP5907873B2 (en) Ultrasound and HF combined surgical system
JP6204427B2 (en) System for simultaneous tissue coagulation and tissue incision
US4284085A (en) Electrode for implantation into the cochlea (II)
US4674498A (en) Electro cautery surgical blade
US4202337A (en) Bipolar electrosurgical knife
US20040215184A1 (en) System for electrosurgical tissue contraction
DE59608919D1 (en) Implantable device with internal electrode
EP0684791A4 (en) Bipolar surgical snare and methods of use.
IE921822A1 (en) Electrosurgical and ultrasonic surgical system
CA2064547A1 (en) Bipolar electrosurgical scalpel with paired loop electrodes
GB2090532A (en) An electrosurgical apparatus
EP3749246B1 (en) Plasma jet device
EP0280798A1 (en) Electrosurgery surgical instrument
US5146912A (en) Variable energy shock wave production
CN107361841B (en) Medical DC current generator and bipolar medical implant segmentation device equipped with medical DC current generator
JP2023068644A (en) High-frequency electrode for use in handheld surgical device, electrode instrument, and resectoscope
CZ4900U1 (en) Electrical device for erosion of structure of human intraocular lens front housing
CN211484875U (en) Radio frequency ablation forceps and multi-electrode radio frequency ablation system comprising same
JP2001516611A (en) Muscle tissue revascularization device
CN217338822U (en) Needle type pulse ablation electrode and handle device
US20220008117A1 (en) Radiofrequency electrode for use in a surgical handheld device, electrode instrument and resectoscope

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA CN JP MX NO PL RU SK US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 97529693

Format of ref document f/p: F

122 Ep: pct application non-entry in european phase