Granted Patent
B2
US 12,268,900 · App. 18/083,675 · Granted Apr 8, 2025
Surgical instruments
Inventors:
Eitan T. Wiener (Cincinnati, OH); Kenneth S. Kramer (Trabuco Canyon, CA); Foster B. Stulen (Johns Island, SC); Kevin L Houser (Springboro, OH)
Assignee:
Cilag GmbH International
A61N7/02A61B17/320068A61B17/320092A61B2017/00084A61B2017/00106A61B2017/00128A61B2017/00353A61B2017/320069A61B2017/320071A61B2017/320089A61B2017/320094A61B2017/320095A61B2018/00607A61B2018/00642A61B2018/00791
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Abstract
A surgical device. The surgical device may comprise a transducer, an end effector, a generator and a control circuit. The transducer may be configured to provide vibrations. The end effector may be coupled to the transducer and may extend from the transducer along the longitudinal axis. The generator may provide an electrical signal to the transducer. Also, the control circuit may modify a current amplitude of the electrical signal in response to a change in a vibration frequency of the end effector. Accordingly to various embodiments, the control circuit may detect a first contribution to a vibration frequency of the end effector, the first contribution originating from tissue in contact with the end effector. Also, according to various embodiments, the control circuit may indicate a change in a vibration frequency of the end effector.
Claims (32)
1. A surgical device comprising an end effector, the end effector comprising:
a central member extending longitudinally along a longitudinal axis through the end effector; and
a plurality of radial mode transducers positioned around the central member, wherein the plurality of radial mode transducers are configured to respond to an electrical signal by vibrating in a direction perpendicular to the longitudinal axis; and
a clamp arm pivotable toward the plurality of radial mode transducers along the longitudinal axis.
2. The surgical device of claim 1 , wherein the central member is flexible.
3. The surgical device of claim 1 , wherein at least one of the plurality of radial mode transducers defines a concavity having a face perpendicular to the longitudinal axis.
4. The surgical device of claim 3 , wherein the concavity encircles the at least one of the plurality of radial mode transducers about the longitudinal axis.
5. The surgical device of claim 1 , wherein the end effector is configured to articulate.
6. A method for processing a surgical device for surgery, comprising:
obtaining the surgical device of claim 1 ; and
replacing at least one of the plurality of radial mode transducers positioned around the central member, wherein the plurality of radial mode transducers are configured to respond to an electrical signal by vibrating in a direction perpendicular to the longitudinal axis.
7. The method of claim 6 , further comprising sterilizing the surgical device.
8. A surgical device, comprising:
an end effector, comprising:
a central member extending along a longitudinal axis; and
radial mode transducers positioned around the central member, wherein the radial mode transducers are configured to generate vibrations in a direction perpendicular to the longitudinal axis, based on a signal provided by a generator; and
a metal tubular sheath, wherein the radial mode transducers are enclosed within the metal tubular sheath, and wherein the metal tubular sheath serves as an electrode for the radial mode transducers.
9. The surgical device of claim 8 , wherein the central member serves as an electrode for the radial mode transducers.
10. The surgical device of claim 8 , wherein the radial mode transducers are coated with an electrically conductive substance that serves as an electrode for the radial mode transducers.
11. The surgical device of claim 8 , further comprising a clamp arm pivotable relative to the end effector.
12. The surgical device of claim 8 , wherein the central member comprises a flexible central member.
13. The surgical device of claim 12 , wherein the radial mode transducers are flexible relative to one another.
14. The surgical device of claim 12 , further comprising an articulation system configured to flex the flexible central member.
15. The surgical device of claim 14 , wherein the articulation system comprises: a wire extending along the flexible central member; and
an actuator configured to retract the wire, wherein the flexible central member is configured to articulate in a first direction based on the wire being retracted by the actuator.
16. The surgical device of claim 15 , wherein the flexible central member defines a central lumen, and wherein the wire is configured to extend through the central lumen.
17. A surgical device, comprising:
an end effector, comprising:
radial mode transducers; and
a flexible central member extending through the radial mode transducers along a longitudinal axis, wherein the radial mode transducers are configured to generate vibrations in a direction perpendicular to the longitudinal axis, based on a signal provided by a generator, and wherein the radial mode transducers are pivotable relative to one another; and
a clamp arm pivotable relative to the end effector to capture tissue therebetween.
18. The surgical device of claim 17 , further comprising an articulation system configured to flex the flexible central member.
Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 25, 2025
From: ETHICON LLC
To: CILAG GMBH INTERNATIONAL
Reel/Frame 070320/0725 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Feb 25, 2025
From: WIENER, EITAN T.; KRAMER, KENNETH S.; STULEN, FOSTER B.; HOUSER, KEVIN L.
To: ETHICON ENDO-SURGERY, LLC
Reel/Frame 070321/0376 →
Continuity (5)
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