Powered surgical apparatus, method of manufacturing powered surgical apparatus, and method of using powered surgical apparatus

• US 7,473,263 B2
• Filed: 01/31/2005
• Issued: 01/06/2009
• Est. Priority Date: 03/22/2002
• Status: Expired due to Term

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Gyrus ENT LLC (Olympus Corporation)
• Inventors: Isaacs, Dickon, Enders, Thomas Franz, Burroughs, Andrew Christopher, Monson, Rodney Hal, Ryan, Phillip Andrew, Johnston, Constance Elaine, Tappel, James Gerard, Mykleby, Perry Robin, Brauer, Jacob Shieffelin, Sugalski, Eric Christopher, Rush, Benjamin Leo, Mills, Carrie Deanne, Chow, Benjamin Mark, Karahalios, Tasos George, Brenneman, Scott Andrew, Cruse, II, Energy
• Primary Examiner(s): Sirmons; Kevin C
• Assistant Examiner(s): Gilbert; Andrew M
• Application Number:
  US11/045,255
• Publication Number:
  US 20050187572A1
• Time in Patent Office: 1,436 Days
• Field of Search: 604/22, 604/30, 604/35, 604/43, 604/113, 604/118, 604/131, 604/156, 604/181, 604/197, 604/226, 606/167, 606/170, 606/171, 606/180
• US Class Current: 606/170
• CPC Class Codes: A61B 17/162 Chucks or tool parts which are to be held in a chuck
• CPC Class Codes: A61B 17/1622 Drill handpieces A61B17/1626, A61B17/1628 take precedence
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1626 Control means; Display units
• CPC Class Codes: A61B 17/1633 Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft A61B17/1644 takes precedence
• CPC Class Codes: A61B 17/1679 for the ear
• CPC Class Codes: A61B 17/1688 for the sinus or nose
• CPC Class Codes: A61B 17/1695 Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 2017/00199 with a console, e.g. a control panel with a display
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00973 pedal-operated
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 : with irrigation system
• CPC Class Codes: A61B 34/74 : Manipulators with manual electric input means
• CPC Class Codes: A61M 1/84 : Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/85 : with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 1/86 : Connectors between drainage tube and handpiece, e.g. drainage tubes detachable from handpiece
• CPC Class Codes: Y10T 279/17752 : Ball or roller jaws

Abstract

A powered surgical apparatus can be used with a source of irrigation fluid and a source of suction. The powered surgical apparatus can include a cutting blade assembly and a handle. The handle can include an upper portion defining a distal section connectable to the cutting blade assembly and a lower portion extending downwardly from the upper portion. The handle can be connectable to the source of irrigation fluid and the source of suction. The system can also include a manually actuable input device that provides at least one signal relevant to at least one operation of the system, and a controller that receives the at least one input signal and provides an output signal to perform the at least one operation of the system.

Claims

1. A cutting blade assembly usable with a motor, a handle and a source of irrigation fluid as a powered surgical apparatus, the handle including a barrel that defines an irrigation fluid channel, the irrigation fluid channel including a longitudinal section and a transverse section, the cutting blade assembly comprising:

a rotatable inner tube rotatable by the motor and defining a cutting surface;

a rotatable inner hub secured to the inner tube, the inner tube and inner hub being rotatable together with respect to the barrel by the motor;

an outer tube defining a cutting window extending along a length of the outer tube so as to expose the cutting surface of the rotatable inner tube to bodily tissue during operation, the inner tube extending within the outer tube so as to define a tube gap therebetween;

a rotatable outer hub secured to the outer tube such that rotation of the outer hub with respect to the barrel rotates the outer tube and reorients the cutting window with respect to a surface being cut, the outer hub defining a circumferentially extending through hole channel and a transverse through hole at the through hole channel, the through hole channel and transverse through hole communicating with the transverse section of the irrigation fluid channel of the barrel and the tube gap such that irrigation fluid can flow through the irrigation fluid channel of the barrel and to the tube gap via the through hole channel and the transverse through hole of the outer hub.

2. The cutting blade assembly according to claim 1, wherein the outer hub defines circumferentially extending O-ring retention channels on opposite sides of the through hole channel, the O-ring retention channels being separated from the through hole channel by a pair of circumferentially extending ribs.

3. The cutting blade assembly according to claim 2, further including O-rings disposed in the O-ring retention channels.

4. The cutting blade assembly according to claim 3, wherein the O-rings are sized to seal a gap separating the exterior of the outer hub and an interior surface of the barrel.

5. The cutting blade assembly to claim 4, further including a dynamic O-ring and a donut securing the dynamic O-ring to a proximal end of the outer hub, the dynamic O-ring sealing a gap separating an exterior of the inner tube and an interior of the outer hub.

6. The cutting blade assembly according to claim 5, wherein the donut is secured to the proximal end of the outer hub by ultrasonic welding.

7. The cutting blade assembly according to claim 6, wherein the inner hub and the outer hub are formed from synthetic resin.

8. The cutting blade assembly according to claim 7, wherein the inner tube and the outer tube are formed from metal.

10. The cutting blade assembly according to claim 1, the transverse through hole extending entirely through a transverse width of the outer hub so as to form a pair of apertures in the exterior surface of the outer hub.

11. The cutting blade assembly according to claim 10, at least a portion of the outer hub being cylindrically shaped, the transverse through hole defining a linear axis such that the pair of apertures are defined at diametrically opposite sides of the cylindrically shaped portion of the outer hub.

12. The cutting blade assembly according to claim 1, wherein the cutting window and the cutting surface cooperate to engage the surface being cut.

13. The cutting blade assembly according to claim 1, wherein the rotatable outer hub is freely rotatable without becoming separated from the barrel.

14. The cutting blade assembly according to claim 13, wherein the rotatable outer hub is freely rotatable during operation of the powered surgical apparatus.

15. The cutting blade assembly according to claim 1, wherein the reorientation of the cutting window exposes a new surface to be cut.

9. A method of manufacturing a cutting blade assembly usable with a motor, a handle and a source of irrigation fluid as a powered surgical apparatus, the handle including a barrel that defines an irrigation fluid channel, the irrigation fluid channel including a longitudinal section and a transverse section, the method comprising:

forming a rotatable inner tube rotatable by the motor and defining a cutting surface;

securing a rotatable inner hub to the inner tube, the inner tube and inner hub being rotatable together with respect to the barrel by the motor;

forming an outer tube defining a cutting window extending along a length of the outer tube so as to expose the cutting surface of the rotatable inner tube to bodily tissue during operation;

extending the inner tube within the outer tube so as to define a gap therebetween;

securing a rotatable outer hub to the outer tube such that rotation of the outer hub with respect to the barrel rotates the outer tube and reorients the cutting window with respect to a surface being cut; and

forming, in the outer hub, a circumferentially extending through hole channel and a transverse through hole at the through hole channel, the through hole channel and the transverse through hole communicating with the transverse section of the irrigation fluid channel of the barrel and the tube gap such that irrigation fluid can flow through the irrigation fluid channel of the barrel and to the tube gap via the through hole channel and the transverse through hole of the outer hub.