Transseptal needle apparatus

US9358039B2 · kind B2 · utility

Assignee

• Greatbatch Ltd. · US

Inventors

• Scott Kimmel · Okabena, US
• Rodolphe Katra · Blaine, US
• Kevin Pietsch · Greenfield, US
• Brian Loushine · Minnetonka, US
• Jeffrey Zweber · St. Louis Park, US
• Ed Goff · Phoenix, US
• Blane Larson · Monticello, US
• Jordon D. Honeck · Maple Grove, US
• Grant A. Scheibe · Loretto, US

Key dates

• Filing date: May 7, 2013
• Grant date: Jun 7, 2016
• Expiry date: May 7, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2025/0175
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In various examples, an apparatus includes a needle assembly including an outer cannula including a tubular sidewall disposed around a lumen. At least a portion of the sidewall includes an exterior including a polymeric material configured to inhibit skiving of an interior of a dilator with movement of the outer cannula within the dilator. An inner cannula is disposed within the lumen and is selectively slidable with respect to the outer cannula. A handle is disposed at a proximal portion of the needle assembly. The handle includes a first handle portion coupled to and movable with the outer cannula. A second handle portion is coupled to and movable with the inner cannula, wherein the first handle portion is selectively movable with respect to the second handle portion to extend a distal end of the inner cannula from within the lumen of the outer cannula.