CA2303355A1 - Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery - Google Patents

Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery Download PDF

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Publication number
CA2303355A1
CA2303355A1 CA002303355A CA2303355A CA2303355A1 CA 2303355 A1 CA2303355 A1 CA 2303355A1 CA 002303355 A CA002303355 A CA 002303355A CA 2303355 A CA2303355 A CA 2303355A CA 2303355 A1 CA2303355 A1 CA 2303355A1
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Canada
Prior art keywords
during surgery
reducing friction
heat generation
device during
improved method
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
CA002303355A
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French (fr)
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CA2303355C (en
Inventor
Richard Mackool
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Novartis AG
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Individual
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Filing date
Publication date
Priority claimed from US08/400,802 external-priority patent/US5505693A/en
Application filed by Individual filed Critical Individual
Publication of CA2303355A1 publication Critical patent/CA2303355A1/en
Application granted granted Critical
Publication of CA2303355C publication Critical patent/CA2303355C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Surgical Instruments (AREA)

Abstract

A surgical instrument for removing tissue, such as a cataract, from a patient's body includes a hollow vibrating needle surrounded by one or two hollow infusion sleeves. Reducing friction between the surface(s) of the sleeve(s) and the outer surface of the needle and/or surrounding ocular tissue dramatically reduces the amount of heat generated during surgery, thus reducing the possibility of thermal damage to tissue.
CA002303355A 1995-03-08 1996-03-06 Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery Expired - Lifetime CA2303355C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/400,802 1995-03-08
US08/400,802 US5505693A (en) 1994-12-30 1995-03-08 Method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery
CA002214566A CA2214566C (en) 1995-03-08 1996-03-06 Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002214566A Division CA2214566C (en) 1995-03-08 1996-03-06 Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery

Publications (2)

Publication Number Publication Date
CA2303355A1 true CA2303355A1 (en) 1996-09-12
CA2303355C CA2303355C (en) 2001-05-29

Family

ID=25679590

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002303355A Expired - Lifetime CA2303355C (en) 1995-03-08 1996-03-06 Improved method and apparatus for reducing friction and heat generation by an ultrasonic device during surgery

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CA (1) CA2303355C (en)

Also Published As

Publication number Publication date
CA2303355C (en) 2001-05-29

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Effective date: 20160307