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AssigneeEthicon Endo-Surgery, Inc.
InventorsAshvani K. Madan, Foster B. Stulen, Eitan T. Wiener, Karen M. Kowalski, Michael J. Stokes, Mark E. Tebbe, Mark D. Mihal, Michael R. Lamping
Estimating the term…
Several embodiments of medical ultrasound handpieces are described each including a medical ultrasound transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system includes a medical ultrasound handpiece having a medical ultrasound transducer assembly and includes an ultrasonically-vibratable medical-treatment instrument which is attachable to a distal end of the transducer assembly. An embodiment of a medical ultrasound system is described, wherein the medical ultrasound system has a handpiece including a medical ultrasound transducer assembly and including a housing or housing component surrounding the transducer assembly. A method for tuning a medical ultrasound handpiece includes machining at least a distal non-threaded portion of an instrument-attachment stud of the transducer assembly to match a measured fundamental frequency to a desired fundamental frequency to within a predetermined limit. A method for making a medical ultrasound transducer assembly determines acceptable gains for gain stages of the transducer assembly.
A medical ultrasound handpiece comprising a medical ultrasound transducer assembly, wherein the transducer assembly includes consecutive first and second half-wave sections, wherein the first half-wave section includes a first node and the second half-wave section includes a second node, wherein the first half-wave section includes a first piezoelectric transducer disk substantially centered about the first node and the second half-wave section includes a second piezoelectric transducer disk substantially centered about the second node, wherein the transducer assembly includes a gain stage disposed between the first and second piezoelectric transducer disks, and wherein the gain stage includes a stacked plurality of piezoelectric transducer disks.
A medical ultrasound handpiece comprising a medical ultrasound transducer assembly, wherein the transducer assembly includes consecutive first and second half-wave sections, wherein the first half-wave section includes a first node and the second half-wave section includes a second node, wherein the first half-wave section includes a first stacked plurality of piezoelectric transducer disks substantially centered about the first node and the second half-wave section includes a second stacked plurality of piezoelectric transducer disks substantially centered about the second node, wherein the transducer assembly includes a gain stage disposed between the first and second stacked pluralities of piezoelectric transducer disks, and wherein the gain stage includes a stacked plurality of piezoelectric transducer disks.
A medical ultrasound handpiece comprising a 1½-wave medical ultrasound transducer assembly, wherein the transducer assembly includes consecutive first, second, and distal-most third half-wave sections, wherein the first half-wave section includes a first node, the second half-wave section includes a second node, and the third half-wave section includes a third node, wherein the first half-wave section includes a first stacked plurality of piezoelectric transducer disks substantially centered about the first node and the second half-wave section includes a second stacked plurality of piezoelectric transducer disks substantially centered about the second node, wherein the transducer assembly includes a first, second, and third gain stages, wherein the first gain stage is disposed in the first half-wave section distal the first stacked plurality of piezoelectric transducer disks, wherein the second gain stage is disposed in the second half-wave section distal the second stacked plurality of piezoelectric transducer disks, wherein the third gain stage extends distally from proximate the third node, and wherein the first gain stage includes a stacked plurality of piezoelectric transducer disks.
A medical ultrasound handpiece comprising a 1-wave medical ultrasound transducer assembly, wherein the transducer assembly includes consecutive first and distal-most second half-wave sections, wherein the first half-wave section includes a first node and the second half-wave section includes a second node, wherein the first half-wave section includes a first stacked plurality of piezoelectric transducer disks substantially centered about the first node and the second half-wave section includes a second stacked plurality of piezoelectric transducer disks substantially centered about the second node, wherein the transducer assembly includes a first and second gain stages, wherein the first gain stage is disposed in the first half-wave section distal the first stacked plurality of piezoelectric transducer disks, wherein the second gain stage is disposed in the second half-wave section distal the second stacked plurality of piezoelectric transducer disks, and wherein the first gain stage includes a stacked plurality of piezoelectric transducer disks.
Dependencies are inferred from the claim text.