Surgical instrument with ratcheting rotatable shaft

US9039720B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9039720-B2
Application numberUS-201113274540-A
CountryUS
Kind codeB2
Filing dateOct 17, 2011
Priority dateNov 5, 2010
Publication dateMay 26, 2015
Grant dateMay 26, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An ultrasonic surgical instrument comprises a reusable housing including an internal transducer and an internal end effector rotation assembly. An exemplary rotation assembly is a ratchet and pawl assembly, which allows the transducer to rotate in a first direction but not in a second, opposite direction. The end effector, including an integral torque wrench, is attached to the transducer to form a single unit that is rotatable relative to the housing. The transducer attaches to a stationary cable via slip rings. The cable communicates with a generator, which provides electrical power to the transducer. The transducer converts the electrical power into ultrasonic vibrational energy, which is transmitted to the end effector.

First claim

Opening claim text (preview).

I claim: 1. A surgical instrument comprising: (a) a housing; (b) an ultrasonic transducer; (c) an acoustic transmission assembly attached to the transducer to form a rotatable unit, wherein the acoustic transmission assembly defines a longitudinal axis extending therethrough; and (d) a rotation assembly, wherein the rotation assembly is operable to rotate the rotatable unit relative to the housing, wherein the rotation assembly comprises an input feature, wherein the input f…

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What does patent US9039720B2 cover?
An ultrasonic surgical instrument comprises a reusable housing including an internal transducer and an internal end effector rotation assembly. An exemplary rotation assembly is a ratchet and pawl assembly, which allows the transducer to rotate in a first direction but not in a second, opposite direction. The end effector, including an integral torque wrench, is attached to the transducer to fo…
Who is the assignee on this patent?
Madan Ashvani K, Ethicon Endo Surgery Inc
What technology area does this patent fall under?
Primary CPC classification A61B18/1442. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue May 26 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).