Percutaneous nephrostomy plug delivery device

• US 9,050,067 B2
• Filed: 09/14/2012
• Issued: 06/09/2015
• Est. Priority Date: 09/26/2011
• Status: Active Grant

• Current Assignee: Cook Incorporated (Cook Group Incorporated), Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Duncan, Kate, Frankland, Gregory A.
• Primary Examiner(s): WEISBERG, AMY REGINA
• Application Number:
  US13/618,184
• Publication Number:
  US 20130079812A1
• Time in Patent Office: 998 Days
• Field of Search: 744/22, 74 8917- 8919, 74498-500, 604/57, 604/60, 604/61, 294/119.1, 294/207, 294/209, 606/213
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00654 entirely comprised between the two sides of the opening
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion

Abstract

A device for delivering a percutaneous nephrostomy plug is provided. The device comprises a tubular member configured for insertion into a biological body. The device further comprises a handle coupled to a proximal end of the tubular member. The handle comprises a pusher element, an actuation element, and a transmission. The pusher element is disposed within the tubular member, and is configured to deliver a plug through a distal end of the tubular member. The transmission is coupled to the tubular member and the actuation element, and the transmission is configured to cause a retraction of the tubular member relative to the pusher element in response to a depression of the actuation element. A first depression of the actuation element toward the tubular member urges a partial exposure of the plug. A second depression of the actuation element urges a further exposure of the plug.

Claims

1. A medical device, comprising:

a tubular member having a proximal end and a distal end, the tubular member configured for insertion into a biological body;

a handle coupled to the proximal end of the tubular member, the handle comprising;

a pusher element configured to slide within the tubular member to deliver a plug through the distal end of the tubular member;

an actuation element comprising;

a button; and

a spring coupled to the button;

a transmission coupled to the tubular member and the actuation element, the transmission comprising;

a first rack coupled to the button;

a second rack coupled to tubular member;

a first gear engaged with the first rack;

a second gear engaged with the second rack, the second gear selectively coupled to the first gear; and

a roller clutch coupled to the first gear;

wherein a first depression of the button urges a first rotation of the first and second gears in a first direction, causing a retraction of the tubular member relative to the pusher element;

wherein upon a release of the button the first gear rotates in a direction opposite the first direction but the second gear remains stationary; and

wherein a second depression of the button urges a second rotation of the first and second gears in the first direction, causing a further retraction of the tubular member relative to the pusher element.

2. The medical device of claim 1, wherein the pusher element is a cylindrical rod.

3. The medical device of claim 1, further comprising the plug disposed within the tubular member at the distal end of the tubular member.

4. The medical device of claim 3, wherein the plug has a cylindrical shape.