US 12,310,614 B2Granted

Ultrasonic cutting tip for lumbar procedures

AssigneeStryker European Operations Holdings LLC

InventorsGuillaume Gras, Conor McCarthy

Life of this patent

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Abstract

An ultrasonic tip and methods of operating the same. The ultrasonic tip comprises a shaft including a base and a flexible body. The body comprises a first portion and a second portion. The body is coupled to the base at the first portion and extends from the first portion to the second portion along a longitudinal axis. The second portion includes a cutting portion comprising a neck, and a head extending radially from the longitudinal axis. The head is coupled to the neck. A circular aperture is disposed between the head and the neck to define an inner circumferential surface. The head and the neck form an outer circumferential surface comprising a plurality of cutting teeth, the outer circumferential surface having a first thickness at the head that is greater than a second thickness at the neck.

Claims18

Dependent claims

An ultrasonic tip comprising:

a shaft including a base and a body, the body comprising a first portion and a second portion, wherein the body is coupled to the base at the first portion and said body extends from said first portion to said second portion,
wherein said second portion includes a cutting portion comprising a neck and a head extending from the neck,
wherein the head and the neck collectively define an inner circumferential surface extending between opposed first and second sides of the cutting portion to form a circular aperture disposed between the head and the neck, and collectively define an outer circumferential surface opposite the inner circumferential surface and extending between the opposed first and second sides, the outer circumferential surface defining a plurality of cutting teeth, and
wherein the cutting portion has a first thickness defined by a distance between the first and second sides at the neck and a second thickness defined by a distance between the first and second sides at the head, the first thickness being less than second thickness.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/883,061Filed 8 Aug 2022 · continuation
Priority: 23 Oct 2018
Published: US 2022/0378462 A11 Dec 2022
Granted: 27 May 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61B 17/320068
Surgical cutting instruments: using mechanical vibrations, e.g. ultrasonic
A61B 2017/320077
Blade: double edge blade, e.g. reciprocating
A61B 2017/320078
Working tips with special features, e.g. extending parts: tissue manipulating surface
A61B 2017/320082
Using mechanical vibrations, e.g. ultrasonic: for incising tissue

Family

Application62/749,587Us provisional application · filed 23 Oct 2018
Application16/661,923Parent of this continuation · filed 23 Oct 2019
US 2022/0378462 A1Pre-grant publication · published 1 Dec 2022
US 11,406,414 B2Parent of this continuation
US 2020/0121352 A1Published application
US 12,310,614 B2This patent

From the US filing history. Foreign family members aren’t listed.