Granted Patent
B2
US 12,369,939 · App. 18/232,591 · Granted Jul 29, 2025
Ultrasonic surgical blades
Inventors:
David A. Witt (Maineville, OH); Jeffrey D. Messerly (Cincinnati, OH); Kevin L. Houser (Springboro, OH)
Assignee:
Cilag GmbH International
A61B17/320092A61L31/08A61L31/088A61L31/10A61L31/14A61N7/00A61B2017/00849A61B2017/00853A61B2017/0088A61B17/320068A61B2017/320078A61B2017/320093A61B2017/320094A61B2017/320095A61L2400/10A61L2420/08A61N7/02
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Abstract
An ultrasonic surgical blade includes a body having a proximal end, a distal end, and an outer surface. The distal end is movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the proximal end. At least a portion of the outer surface of the body comprises a lubricious coating adhered thereto. The lubricious coating has a coefficient of friction that is less than the coefficient of friction of the outer surface of the body.
Claims (34)
1. An ultrasonic end effector, comprising:
an ultrasonic blade, comprising:
a proximal end; and
a distal end movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the ultrasonic blade by an ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer layered on a distal facing surface of the ultrasonic blade and a second layer layered on top of the first layer, wherein the second layer is distal to at least a portion of the first layer, wherein the first layer comprises a first material, wherein the second layer comprises a second material, and wherein the first material is the same as the second material.
2. The ultrasonic end effector of claim 1 , further comprising a clamp arm.
3. The ultrasonic end effector of claim 1 , wherein the ultrasonic blade further comprises a surface treatment.
4. The ultrasonic end effector of claim 3 , wherein the coating is layered on top of the surface treatment.
5. The ultrasonic end effector of claim 1 , wherein the first material and the second material comprise a polymeric material.
6. The ultrasonic end effector of claim 1 , wherein the first material and the second material comprise a ceramic material.
7. The ultrasonic end effector of claim 1 , wherein the first material and the second material comprise a metallic material.
8. An ultrasonic surgical instrument, comprising:
a waveguide extending along a longitudinal axis; and
an ultrasonic blade, comprising:
a proximal end operably coupled to the waveguide; and
a distal end movable relative to the longitudinal axis in accordance with ultrasonic vibrations applied to the waveguide by an ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer layered on a distal facing surface of the ultrasonic blade and a second layer at least partially layered on top of the first layer, wherein the second layer is distal to at least a portion of the first layer, wherein the first layer comprises a first material, wherein the second layer comprises a second material, and wherein the first material is the same as the second material.
9. The ultrasonic surgical instrument of claim 8 , further comprising a clamp arm.
10. The ultrasonic surgical instrument of claim 8 , wherein the ultrasonic blade further comprises a surface treatment.
11. The ultrasonic surgical instrument of claim 10 , wherein the coating is layered on top of the surface treatment.
12. The ultrasonic surgical instrument of claim 8 , wherein the first material and the second material comprise a polymeric material.
13. The ultrasonic surgical instrument of claim 8 , wherein the first material and the second material comprise a ceramic material.
14. The ultrasonic surgical instrument of claim 8 , wherein the first material and the second material comprise a metallic material.
15. An ultrasonic surgical system, comprising:
an ultrasonic transducer;
a waveguide operably coupled to the ultrasonic transducer, wherein the waveguide extends along a longitudinal axis; and
an end effector, comprising:
a clamp arm; and
an ultrasonic blade, comprising:
a proximal end operably coupled to the waveguide; and
a distal end movable relative to the longitudinal axis in accordance with ultrasonic vibrations applied to the waveguide by the ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer layered on a distal facing surface of the ultrasonic blade and a second layer layered on top of the first layer, wherein the second layer is distal to at least a portion of the first layer, wherein the first layer comprises a first material, wherein the second layer comprises a second material, and wherein the first material is the same as the second material.
16. The ultrasonic surgical system of claim 15 , wherein the ultrasonic blade further comprises a surface treatment.
17. The ultrasonic surgical system of claim 16 , wherein the coating is layered on top of the surface treatment.
18. The ultrasonic surgical system of claim 15 , wherein the first material and the second material comprise a polymeric material.
19. The ultrasonic surgical system of claim 15 , wherein the first material and the second material comprise a ceramic material.
20. The ultrasonic surgical system of claim 15 , wherein the first material and the second material comprise a metallic material.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Sep 21, 2023
From: WITT, DAVID A.; MESSERLY, JEFFREY D.; HOUSER, KEVIN L.
To: CILAG GMBH INTERNATIONAL
Reel/Frame 064984/0552 →
Continuity (5)
Provisional Application
61004961
· Nov 30, 2007
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