CA2353941A1 - Pumping chamber for a liquefracture handpiece - Google Patents

Pumping chamber for a liquefracture handpiece Download PDF

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Publication number
CA2353941A1
CA2353941A1 CA002353941A CA2353941A CA2353941A1 CA 2353941 A1 CA2353941 A1 CA 2353941A1 CA 002353941 A CA002353941 A CA 002353941A CA 2353941 A CA2353941 A CA 2353941A CA 2353941 A1 CA2353941 A1 CA 2353941A1
Authority
CA
Canada
Prior art keywords
pumping chamber
grams
handpiece
tube
irrigation lumen
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.)
Granted
Application number
CA002353941A
Other languages
French (fr)
Other versions
CA2353941C (en
Inventor
Glenn Sussman
Donald M. Cohen
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.)
Alcon Vision LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2353941A1 publication Critical patent/CA2353941A1/en
Application granted granted Critical
Publication of CA2353941C publication Critical patent/CA2353941C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • 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
    • A61B17/3203—Fluid jet cutting instruments
    • 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
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320084—Irrigation sleeves
    • 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
    • A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
    • 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
    • A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
    • A61B2018/046—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in liquid form
    • 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
    • A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
    • 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
    • A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles

Abstract

A surgical handpiece having at least two lumens or tubes mounted to a body. At least one tube is used for aspiration and at least one other tube is used to inject heated surgical fluid for liquefying a cataractous lens. A portion of the second tube is enlarged to form a pumping chamber. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the second tube. The pumping chamber may use a pair of electrodes.

Claims (7)

1. A liquefracture handpiece, comprising:
a) a body having a first irrigation lumen; and b) a pumping chamber attached to the first irrigation lumen, the pumping chamber capable of producing pressure pulses with i) a force of between 0.03 grams and 50.0 grams, ii) a rise time of between 1 gram/second and 50,000 grams/second and iii) a frequency of between 1 Hz and 200 Hz.
2. The handpiece of claim 1 wherein the force of the pressure pulse is between 1.0 gram and 50.0 grams.
3. The handpiece of claim 1 wherein the rise time of the pressure pulse is between 500 grams/second and 50,000 grams/second.
4. A liquefracture handpiece, comprising:
a) a body having a first irrigation lumen; and b) a pumping chamber attached to the first irrigation lumen, the pumping chamber capable of producing pressure pulses with a force of between 0.03 grams and 50.0 grams.
5. The handpiece of claim 4 wherein the force of the pressure pulse is between 1.0 gram and 50.0 grams.
6. A liquefracture handpiece, comprising:
a) a body having a first irrigation lumen; and b) a pumping chamber attached to the first irrigation lumen, the pumping chamber capable of producing pressure pulses with a rise time of between 1 gram/second and 50,000 grams/second.
7. The handpiece of claim 6 wherein the rise time of the pressure pulse is between 500 grams/second and 50,000 grams/second.
CA2353941A 1999-11-22 2000-09-19 Pumping chamber for a liquefracture handpiece Expired - Fee Related CA2353941C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/447,752 1999-11-22
US09/447,752 US6676628B2 (en) 1998-06-04 1999-11-22 Pumping chamber for a liquefracture handpiece
PCT/US2000/025662 WO2001037768A1 (en) 1999-11-22 2000-09-19 Pumping chamber for a liquefracture handpiece

Publications (2)

Publication Number Publication Date
CA2353941A1 true CA2353941A1 (en) 2001-05-31
CA2353941C CA2353941C (en) 2010-01-26

Family

ID=23777609

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2353941A Expired - Fee Related CA2353941C (en) 1999-11-22 2000-09-19 Pumping chamber for a liquefracture handpiece

Country Status (7)

Country Link
US (2) US6676628B2 (en)
EP (1) EP1143891A1 (en)
JP (1) JP2003514617A (en)
AU (1) AU769611B2 (en)
BR (1) BR0008185A (en)
CA (1) CA2353941C (en)
WO (1) WO2001037768A1 (en)

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BR0008185A (en) 2001-11-06
CA2353941C (en) 2010-01-26
JP2003514617A (en) 2003-04-22
US20030120199A1 (en) 2003-06-26
US20010014785A1 (en) 2001-08-16
AU4610601A (en) 2001-06-04
US6648847B2 (en) 2003-11-18
WO2001037768A1 (en) 2001-05-31
EP1143891A1 (en) 2001-10-17
AU769611B2 (en) 2004-01-29
US6676628B2 (en) 2004-01-13

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