Surgical access system
US-12150641-B2 · Nov 26, 2024 · US
Obturator tip
US8979883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979883-B2 |
| Application number | US-94331110-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2010 |
| Priority date | Dec 17, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A surgical instrument for use with a surgical portal apparatus includes an elongate shaft defining a longitudinal axis. A dilating member disposed at a distal end of the elongate shaft and has a first longitudinal arc segment and a second longitudinal arc segment being in diametrical opposed relation. The first and second longitudinal arc segments define respective first and second radii of curvature transverse to the longitudinal axis, and decrease from proximal to distal to define a generally tapered configuration of the dilating member. The first radius of curvature is greater than the second radius of curvature at predefined longitudinal positions of the dilating member such that the first longitudinal arc segment extends distally beyond the second longitudinal segment to define a penetrating tip. The penetrating tip has a reduced profile and is dimensioned to facilitate initial insertion of the dilating member into tissue.
First claim
Opening claim text (preview).
What is claimed is: 1. A surgical instrument for use with a surgical portal apparatus comprising: an elongate shaft having proximal and distal ends and defining a longitudinal axis; and a monolithic dilating member disposed at the distal end of the elongate shaft, the dilating member having a first longitudinal arc segment and a second longitudinal arc segment in diametrical opposed relation to the first longitudinal arc segment and in secured fixed relation therewith, the first…
Assignees
Inventors
Classifications
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A61B17/3496Primary
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US8979883B2 cover?
- A surgical instrument for use with a surgical portal apparatus includes an elongate shaft defining a longitudinal axis. A dilating member disposed at a distal end of the elongate shaft and has a first longitudinal arc segment and a second longitudinal arc segment being in diametrical opposed relation. The first and second longitudinal arc segments define respective first and second radii of cur…
- Who is the assignee on this patent?
- Smith Robert C, Covidien Lp
- What technology area does this patent fall under?
- Primary CPC classification A61B17/3496. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).