Device for delivering non-biodegradable bulking composition to a urological site

• US 6,979,317 B2
• Filed: 07/05/2002
• Issued: 12/27/2005
• Est. Priority Date: 10/02/2000
• Status: Expired due to Fees

• Current Assignee: Genyx Medical, Inc. (Becton, Dickinson & Co)
• Original Assignee: Genyx Medical, Inc. (Becton, Dickinson & Co)
• Inventors: Berryman, Thomas J., Galt, Kenneth M., Wardle, John
• Primary Examiner(s): RODRIGUEZ, CRIS LOIREN
• Application Number:
  US10/188,749
• Publication Number:
  US 20020169420A1
• Time in Patent Office: 1,271 Days
• Field of Search: 604/158, 604/38, 604/39, 604/43, 604/44, 604/19, 604/517, 604/164.01, 604/162, 604/164.02, 604/164.06, 604/164.08, 604/164.09, 604/164.12, 604/165.01, 604/165.02, 604/166.01, 604/167.03, 604/170.01, 604/170.02, 604/167.06, 604/187, 604/264, 604/266, 604/267, 604272-274, 604/157, 604/198, 604/213, 604/218, 604/235, 604/245, 604/246, 604/249, 604/22, 604/171, 604/173, 604/181, 604/192, 604/134, 604/135, 604/284, 604/523, 604/311, 604/310, 604/167.01, 606213-215, 606/92, 606/93, 222/151, 222/342, 600/29, 600/135
• US Class Current: 604/158
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/062 Needle manipulators
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12099 characterised by the location of the occluder
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00495 for two-component glue
• CPC Class Codes: A61B 2017/00805 Treatment of female stress urinary incontinence
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61F 2/0036 implantable A61F2/0018 takes precedence

Abstract

A device for delivery of a biocompatible polymer composition for treatment of urinary incontinence provides for delivery of biocompatible polymer material and a solidification agent through two lumens. The delivery device provides better control of the precipitation of the polymer in the periurethral tissue and detachment of the precipitated mass from the delivery device. The medical device includes a needle having a lumen and an inner cannula positioned within the needle lumen and movable longitudinally in the needle lumen from an extended position to a withdrawn position to sheer or cut the delivered mass of polymer material away from the needle tip.

Claims

1. A medical device comprising:

a needle having a lumen; and

an inner cannula positioned within the needle lumen and movable longitudinally in the needle lumen, the inner cannula having a lumen for delivering a first fluid to the patient and the needle lumen arranged for delivering a second fluid to a patient, the inner cannula having a cannula tip configured to detach a mass from the needle when the inner cannula is moved from an extended position at which the cannula tip extends from a distal end of the needle to a withdrawn position at which the cannula tip is within the needle lumen;

and further comprising an injection hub connected to the needle and the inner cannula and configured to deliver the first fluid though the lumen of the inner cannula and the second fluid between an inner surface of the needle and an outer surface of the inner cannula, wherein the injection hub includes a fluid activated piston connected to the inner cannula and, wherein the injection of the first fluid into the injection hub activates the piston.