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Method and system for absolute three-dimensional measurements using a twist-insensitive shape sensor
US9285246B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9285246-B2 |
| Application number | US-83964210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 20, 2010 |
| Priority date | Feb 12, 2010 |
| Publication date | Mar 15, 2016 |
| Grant date | Mar 15, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An apparatus includes a reference fixture. The reference fixture includes a joint, and a joint tracker to track motion of the joint. The apparatus also includes a surgical instrument. A tether is connected between the joint and the surgical instrument. A shape sensor extends from the reference fixture through the joint, through the tether, and into the surgical instrument. The shape sensor is substantially free of twist. The joint tracker measures the motion of the joint. Information from the shape sensor in combination with information from the joint tracker provides absolute three-dimensional information relative to the reference fixture, i.e., provides absolute three-dimensional information in a fixed world reference frame.
First claim
Opening claim text (preview).
We claim: 1. An apparatus comprising: a reference fixture including a joint with at least one degree of freedom, the reference fixture adapted to be fixed in a world reference frame, wherein the reference fixture includes a hollow rod extending through the joint; a flexible and torsionally stiff tether having a proximal end, a distal end, and defining a first lumen extending therethrough, wherein the proximal end of the tether is coupled to the hollow rod so that the tether and…
Assignees
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Classifications
- A61B17/00234Primary
Human Necessities · mapped topic
- G01D5/35316Primary
Physics · mapped topic
- A61B34/30Primary
Human Necessities · mapped topic
Physics · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US9285246B2 cover?
- An apparatus includes a reference fixture. The reference fixture includes a joint, and a joint tracker to track motion of the joint. The apparatus also includes a surgical instrument. A tether is connected between the joint and the surgical instrument. A shape sensor extends from the reference fixture through the joint, through the tether, and into the surgical instrument. The shape sensor is s…
- Who is the assignee on this patent?
- Prisco Giuseppe M, Rogers Theodore W, Duindam Vincent, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification A61B17/00234. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 15 2016 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).