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CA2389821A1 - Tip formation for inserting a flexible membrane into an eye - Google Patents

Tip formation for inserting a flexible membrane into an eye Download PDF

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Publication number
CA2389821A1
CA2389821A1 CA002389821A CA2389821A CA2389821A1 CA 2389821 A1 CA2389821 A1 CA 2389821A1 CA 002389821 A CA002389821 A CA 002389821A CA 2389821 A CA2389821 A CA 2389821A CA 2389821 A1 CA2389821 A1 CA 2389821A1
Authority
CA
Canada
Prior art keywords
flexible membrane
eye
tip formation
cannula
incision
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
CA002389821A
Other languages
French (fr)
Other versions
CA2389821C (en
Inventor
Thomas M. Heyman
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.)
Bausch and Lomb Inc
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
Priority claimed from US08/729,768 external-priority patent/US5810834A/en
Application filed by Individual filed Critical Individual
Publication of CA2389821A1 publication Critical patent/CA2389821A1/en
Application granted granted Critical
Publication of CA2389821C publication Critical patent/CA2389821C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

A tip formation (10) for an instrument for inserting a flexible membrane (37) into an eye is formed at the distal end (22) of a cannula (16). The cannula (16) has a lumen (18) which directs the flexible membrane (37) through an incision and into the eye. The distal end (22) is beveled so as to provide ease of entry into the incision, and to orient the discharge opening for the flexible membrane (37) at an inclination to the longitudinal axis of the lumen (18). The cannula walls (24) about the beveled end (22) are tapered to form a smaller sized end without impeding the advance of the membrane (37).
CA002389821A 1996-10-07 1997-10-07 Tip formation for inserting a flexible membrane into an eye Expired - Lifetime CA2389821C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/729,768 US5810834A (en) 1996-10-07 1996-10-07 Tip formation for inserting a flexible membrane into an eye
US08/729,768 1996-10-07
CA002267324A CA2267324C (en) 1996-10-07 1997-10-07 Tip formation for inserting a flexible membrane into an eye

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002267324A Division CA2267324C (en) 1996-10-07 1997-10-07 Tip formation for inserting a flexible membrane into an eye

Publications (2)

Publication Number Publication Date
CA2389821A1 true CA2389821A1 (en) 1998-04-16
CA2389821C CA2389821C (en) 2009-02-17

Family

ID=25680861

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002389821A Expired - Lifetime CA2389821C (en) 1996-10-07 1997-10-07 Tip formation for inserting a flexible membrane into an eye

Country Status (1)

Country Link
CA (1) CA2389821C (en)

Also Published As

Publication number Publication date
CA2389821C (en) 2009-02-17

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20171010

MKEX Expiry

Effective date: 20171010