Soft aspriation tip

• US 5,718,677 A
• Filed: 02/14/1997
• Issued: 02/17/1998
• Est. Priority Date: 02/14/1997
• Status: Expired due to Term

• Current Assignee: Alcon Research Limited (Nestle SA)
• Original Assignee: Alcon Laboratories Incorporated (Alcon Incorporated)
• Inventors: Injev, Valentine P., Capetan, Thomas G.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US08/800,370
• Time in Patent Office: 368 Days
• Field of Search: 604/35, 604/22, 604/239, 604/27, 604/118, 604/119, 604/280, 606/107, 606/171, 606/169
• US Class Current: 604/35
• CPC Class Codes: A61F 9/00745 using mechanical vibrations, e.g. ultrasonic
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32

Abstract

An aspiration tip having a relatively rigid cannula attached to a hub and an open end opposite the hub. The open end is sealed with a cap made from a soft, flexible material, such as rubber or soft plastic. The soft material reduces the likelihood that the posterior capsule will tear during cortical clean-up and capsule polishing.

Claims

1. An aspiration tip, comprising:

a) a relatively rigid cannula connected on a proximal end to a hub and open on a distal end; and

b) a relatively soft, straight tubular cap having a port, the cap sized and shaped to seal the open distal end of the cannula.

2. The apparatus of claim 1 wherein the cap comprises silicone rubber.

3. The apparatus of claim 1 wherein the cannula and hub comprise titanium.

4. The apparatus of claim 1 wherein the cannula and hub comprise stainless steel.

5. The apparatus of claim 1 wherein the cannula and hub comprise plastic.

6. The apparatus of claim 1 wherein the cap comprises a soft acrylic material.