Ultrasonic surgical instruments

• US 9,510,850 B2
• Filed: 11/11/2013
• Issued: 12/06/2016
• Est. Priority Date: 02/11/2010
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery LLC (Johnson & Johnson)
• Inventors: Robertson, Galen C., Miller, Matthew C., Malaviya, Prasanna
• Primary Examiner(s): Severson, Ryan J
• Application Number:
  US14/076,472
• Publication Number:
  US 20140066962A1
• Time in Patent Office: 1,121 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/22012 in direct contact with, or very close to, the obstruction or concrement for removing obstructions in blood vessels by laser A61B18/245
• CPC Class Codes: A61B 17/320068 using mechanical vibrations, e.g. ultrasonic A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745
• CPC Class Codes: A61B 17/320783 through side-hole, e.g. sliding or rotating cutter inside catheter
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/320008 Scrapers
• CPC Class Codes: A61B 2017/320069 for ablating tissue
• CPC Class Codes: A61B 2017/32007 with suction or vacuum means
• CPC Class Codes: A61B 2017/320074 blade
• CPC Class Codes: A61B 2017/320084 Irrigation sleeves
• CPC Class Codes: A61B 2017/320089 node location
• CPC Class Codes: A61B 2017/320791 with cutter extending outside the cutting window
• CPC Class Codes: A61B 2217/005 with suction drainage system

Abstract

In various embodiments, a surgical instrument is provided. The surgical instrument comprises a blade defining a longitudinal axis, wherein the blade comprises a distal end, a lumen, a first opening adjacent to the distal end and communicating with the lumen, and a first cutting edge positioned over the first opening and projecting away from the longitudinal axis, wherein the first cutting edge extends along a curved contour defined in a cutting plane, and wherein the cutting plane is transverse to the longitudinal axis. The surgical instrument further comprises, one, a suction port communicating with the lumen, wherein the blade is configured to allow suction to be applied from the suction port to the first opening and, two, at least one ultrasonic transducer operably coupled to the blade.

Claims

1. A surgical instrument, comprising:

a blade defining a longitudinal axis, wherein the blade comprises a distal end, a lumen, a first opening adjacent to the distal end and communicating with the lumen, and a first cutting edge positioned over the first opening and projecting away from the longitudinal axis, wherein the first cutting edge extends along a curved contour defined in a cutting plane, and wherein the cutting plane is transverse to the longitudinal axis;

a suction port communicating with the lumen, wherein the blade is configured to allow suction to be applied from the suction port to the first opening; and

at least one ultrasonic transducer operably coupled to the blade.

2. The surgical instrument of claim 1, wherein the first cutting edge defines an arc.

3. The surgical instrument of claim 1, wherein the first opening is at a first longitudinal position on the blade, and wherein the blade further comprises:

a second opening at the first longitudinal position, the second opening communicating with the lumen; and

a second cutting edge positioned over the second opening and projecting away from the longitudinal axis.

4. The surgical instrument of claim 3, wherein the blade further comprises:

a third opening at the first longitudinal position, the third opening communicating with the lumen; and

a third cutting edge positioned over the third opening and projecting away from the longitudinal axis.

5. The surgical instrument of claim 1, wherein the blade further comprises:

a second opening proximal to the first opening, the second opening communicating with the lumen; and

a second cutting edge positioned over the second opening and projecting away from the longitudinal axis.

6. The surgical instrument of claim 5, wherein the first and second cutting edges are defined by a cutting shroud.

7. A surgical instrument, comprising:

a blade defining a longitudinal axis, wherein the blade comprises a distal end, a lumen, a first opening communicating with the lumen, a first cutting edge positioned over the first opening and projecting away from the longitudinal axis, a second opening communicating with the lumen and a second cutting edge positioned over the second opening and projecting away from the longitudinal axis, wherein the second cutting edge is proximal to the first cutting edge, wherein the first cutting edge extends along a curved contour defined in a cutting plane, and wherein the cutting plane is transverse to the longitudinal axis;

a suction port communicating with the lumen, wherein the blade is configured to allow suction to be applied from the suction port to the first opening; and

at least one ultrasonic transducer operably coupled to the blade.

8. The surgical instrument of claim 7, wherein the blade further comprises a third opening communicating with the lumen and a third cutting edge positioned over the third opening.

9. A surgical instrument, comprising:

a blade defining a longitudinal axis, wherein the blade comprises a distal end, a lumen, a first opening communicating with the lumen, a first cutting edge positioned over the first opening and projecting away from the longitudinal axis, a second opening communicating with the lumen and a second cutting edge positioned over the second opening and projecting away from the longitudinal axis, wherein the first cutting edge extends along a curved contour defined in a cutting plane, and wherein the cutting plane is transverse to the longitudinal axis;

a suction port communicating with the lumen, wherein the blade is configured to allow suction to be applied from the suction port to the first opening; and

at least one ultrasonic transducer operably coupled to the blade.

10. The surgical instrument of claim 9, wherein the blade further comprises a third opening communicating with the lumen and a third cutting edge positioned over the third opening.