Apparatus for delivery of energy to a surgical site

• US 6,283,960 B1
• Filed: 03/19/1998
• Issued: 09/04/2001
• Est. Priority Date: 10/24/1995
• Status: Expired due to Term

• Current Assignee: Oratec Interventions Incorporated (Smith & Nephew PLC)
• Original Assignee: Oratec Interventions Incorporated (Smith & Nephew PLC)
• Inventors: Ashley, John
• Primary Examiner(s): Lacyk, John P.
• Assistant Examiner(s): Carter, Ryan
• Application Number:
  US09/047,182
• Time in Patent Office: 1,265 Days
• Field of Search: 607/96-102, 607/113, 607/116-117, 607/148, 607/149, 600/373, 606/27, 606/32, 606/41-42, 606/34
• US Class Current: 606/32
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/3203 Fluid jet cutting instruments
• CPC Class Codes: A61B 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 18/00 Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 18/082 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/148 having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
• CPC Class Codes: A61B 18/1482 having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
• CPC Class Codes: A61B 18/1485 having a short rigid shaft for accessing the inner body through natural openings
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/0011 piezoelectric
• CPC Class Codes: A61B 2017/00119 alarm; indicating an abnormal situation
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/003 : Steerable
• CPC Class Codes: A61B 2017/00336 : with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/00455 : Orientation indicators, e.g. recess on the handle
• CPC Class Codes: A61B 2017/00867 : shape memory effect
• CPC Class Codes: A61B 2017/22082 : after introduction of a substance
• CPC Class Codes: A61B 2017/22087 : photodynamic
• CPC Class Codes: A61B 2017/2905 : flexible
• CPC Class Codes: A61B 2017/2927 : the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/3445 : used as instrument channel for multiple instruments
• CPC Class Codes: A61B 2018/00011 : with fluids
• CPC Class Codes: A61B 2018/00053 : Mechanical features of the instrument of device
• CPC Class Codes: A61B 2018/00083 : low, i.e. electrically insulating
• CPC Class Codes: A61B 2018/00196 : reciprocating lengthwise
• CPC Class Codes: A61B 2018/00434 : Neural system
• CPC Class Codes: A61B 2018/00577 : Ablation
• CPC Class Codes: A61B 2018/00702 : Power or energy
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00875 : Resistance or impedance
• CPC Class Codes: A61B 2018/046 : in liquid form
• CPC Class Codes: A61B 2018/126 : bipolar
• CPC Class Codes: A61B 2018/1425 : Needle
• CPC Class Codes: A61B 2018/1472 : for use with liquid electrolyte, e.g. virtual electrodes
• CPC Class Codes: A61B 2018/1807 : using light other than laser radiation
• CPC Class Codes: A61B 2090/0454 : by reflection
• CPC Class Codes: A61B 2090/061 : for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/064 : for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/3937 : Visible markers
• CPC Class Codes: A61B 2218/002 : Irrigation
• CPC Class Codes: A61F 2/442 : Intervertebral or spinal discs, e.g. resilient non-disc-shaped intervertebral inflatable pockets A61F2/441; non-disc-shaped intervertebral fusion implants A61F2/4455
• CPC Class Codes: A61F 2002/30677 : Means for introducing or releasing pharmaceutical products, e.g. antibiotics, into the body
• CPC Class Codes: A61F 2007/0298 : with a section for heating and a section for cooling
• CPC Class Codes: A61M 25/0144 : having flexible regions as a result of inner reinforcement means, e.g. struts or rods
• CPC Class Codes: A61M 25/0147 : with movable mechanical means, e.g. pull wires
• CPC Class Codes: A61N 1/06 : for high-frequency therapy
• CPC Class Codes: A61N 1/403 : for thermotherapy, e.g. hyperthermia
• CPC Class Codes: A61N 5/04 : Radiators for near-field treatment
• CPC Class Codes: H01Q 3/26 : varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture H01Q3/12, H01Q3/22, H01Q3/24 take precedence
• CPC Class Codes: H04L 25/03337 : Arrangements involving per-survivor processing

Abstract

An apparatus for delivering energy to a surgical site from an energy source is provided. The apparatus includes; a handle, an actuator, a shaft, and a deflection wire. The actuator is movably coupled to the handle. The actuator moves from a first position to a second position. The shaft includes a proximal end, a deflectable portion and an energy delivery portion. The proximal end of the shaft is coupled to the handle. The energy delivery portion is coupled to the energy source to deliver energy to the surgical site. The deflection wire includes a proximal portion and a distal portion. The distal portion is affixed to the shaft. The proximal portion is affixed to the actuator. A movement of the actuator from the first position to the second position moves the deflection wire to produce a deflection of the deflectable portion. In an alternate embodiment of the invention a sensor and feedback control module are provided.

Claims

1. An apparatus for delivering energy to a surgical site from an energy source, comprising:

a handle;

an actuator movably coupled to the handle with a pivot structure to arcuately move from a first position to a second position;

a shaft including a proximal end, a deflectable portion and an energy delivery portion, and the proximal end of the shaft coupled to the handle and the energy delivery portion coupled to the energy source for delivery of energy to the surgical site; and

a deflection wire including a proximal portion and a distal portion, and the distal portion fixed to the shaft, and the proximal portion affixed to the actuator, and a movement of the actuator from the first position to the second position moving the deflection wire to produce a deflection of the deflectable portion,

wherein an axis of rotation defined by the pivot structure is substantially perpendicular to a plane defined by the proximal portion of the deflection wire.

2. The apparatus of claim 1, wherein the actuator further comprises:

a pivot point located substantially at an end of the actuator;

a grip positioned at an opposing end of the actuator; and

a fastener positioned between the grip and the pivot point, and the deflection wire fastened to the fastener.

3. The apparatus of claim 2, wherein the fastener portion comprises an arcuate groove defined between opposing surfaces of said actuator;

and

wherein the deflection wire further comprises;

an arcuate portion located at the proximal portion of the deflection wire, and the arcuate portion positioned within the arcuate groove.

5. The apparatus of claim 2, wherein the actuator further comprises a biasing support.

6. The apparatus of claim 2, wherein the handle further comprises a spring seat and a spring seated within said spring seat.

7. The apparatus of claim 1, wherein the energy source is a electrical energy source.

8. The apparatus of claim 1, wherein the energy source is an RF energy source.

9. The apparatus of claim 1, wherein the energy delivery portion includes a resistive heating element.

10. The apparatus of claim 1, wherein the energy delivery portion includes a monopoly RF electrode.

11. The apparatus of claim 1, wherein the energy delivery portion includes a bipolar RF electrode.

4. An apparatus for delivering energy to a surgical site from an energy source, comprising:

a handle;

an actuator movably coupled to the handle to move from a first position to a second position;

a shaft including a proximal end, a deflectable portion and an energy delivery portion, and the proximal end of the shaft coupled to the handle and the energy delivery portion coupled to the energy source for delivery of energy to the surgical site;

a deflection wire including a proximal portion and a distal portion, and the distal portion fixed to the shaft, and the proximal portion affixed to the actuator, and a movement of the actuator from the first position to the second position moving the deflection wire to produce a deflection of the deflectable portion;

a sensor positioned adjacent the energy delivery portion of the shaft to provide a signal indicating an amount of energy delivered from the energy source to surgical site; and

a feedback control module coupled to the sensor and to the energy source, and the feedback control module including a logic responsive to the signal for adjusting a level of energy delivered from the energy source to the energy delivery portion of the shaft.