Submucosal tonsillectomy apparatus and method

• US 6,682,501 B1
• Filed: 06/10/1999
• Issued: 01/27/2004
• Est. Priority Date: 02/23/1996
• Status: Expired due to Term

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Gyrus ENT LLC (Olympus Corporation)
• Inventors: Edwards, Stuart D., Nelson, Lionel, Yourgenlow, Ashoor Shahbazi
• Primary Examiner(s): MENDEZ, MANUEL A
• Application Number:
  US09/329,717
• Time in Patent Office: 1,692 Days
• Field of Search: 604/22, 604/21, 606/22-34, 606/37-42, 606/45-52, 606/110, 606/111, 602/96-102, 602/134, 602/135, 602/154, 602/156
• US Class Current: 604/22
• 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 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 18/1485 having a short rigid shaft for accessing the inner body through natural openings
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2017/00026 Conductivity or impedance, e.g. of tissue
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00101 low, i.e. thermally insulating
• CPC Class Codes: A61B 2018/00196 reciprocating lengthwise
• CPC Class Codes: A61B 2018/00636 Sensing and controlling the application of energy
• CPC Class Codes: A61B 2018/00666 using a threshold value
• CPC Class Codes: A61B 2018/00678 upper
• CPC Class Codes: A61B 2018/00708 switching the power on or off
• CPC Class Codes: A61B 2018/00744 Fluid flow
• CPC Class Codes: A61B 2018/00773 : Sensed parameters
• CPC Class Codes: A61B 2018/00791 : Temperature
• CPC Class Codes: A61B 2018/00875 : Resistance or impedance
• CPC Class Codes: A61B 2018/00982 : combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2018/1425 : Needle
• CPC Class Codes: A61B 2090/3782 : transmitter or receiver in catheter or minimal invasive instrument
• CPC Class Codes: A61B 5/053 : Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/0538 : invasively, e.g. using a catheter
• CPC Class Codes: A61B 5/415 : the glands, e.g. tonsils, adenoids or thymus
• CPC Class Codes: A61M 2025/0096 : being laterally outward extensions or tools, e.g. hooks or fibres
• 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: A61N 5/045 : specially adapted for treatment inside the body

Abstract

A cell necrosis apparatus includes an elongated member with a longitudinal axis. The elongated member being is configured to be positionable and maneuverable in an oral cavity. First and second energy delivery devices are positioned at a distal portion of the elongated member. Each of the first and second energy delivery devices is laterally offset from the longitudinal axis. In another embodiment, the apparatus can also include a template with a tissue penetrating introducer and a lumen. The energy delivery device is configured to be advancable from the first lumen into a tonsil intratonsil lymphoid stroma.

Claims

1. A cell necrosis apparatus, comprising:

an elongated member with a longitudinal and sized to be positionable and maneuverable in an oral cavity;

a template fixably positioned at a distal portion of the elongated member and including a tissue interface surface;

a first and a second energy delivery device coupled to the elongated member, the first and second energy delivery devices being laterally offset from the longitudinal axis, each of the first and second energy delivery devices having a tissue piercing distal end.

2. The apparatus of claim 1, wherein the first energy delivery device is a first RF electrode and the second energy delivery device is a second RF electrode.

3. The apparatus of claim 2, further comprising:

an RF energy source coupled to each of the RF electrodes.

4. The apparatus of claim 2, further comprising:

a groundpad electrode electrically coupled to the first and second RF electrodes.

5. The apparatus of claim 2, wherein the first and the second RF electrodes are configured to operate in a bipolar mode.

6. The apparatus of claim 2, wherein the first and the second RF electrodes are configured to operate in a monopolar mode.

7. The apparatus of claim 2, further comprising:

a first insulator sleeve positioned at an exterior surface of the first RF electrode and a second insulator sleeve positioned at an exterior surface of the second RF electrode.

8. The apparatus of claim 2, further comprising:

a feedback control system coupled to at least one of a sensor or an RF energy source.

9. The apparatus of claim 2, wherein the first RF electrode has a first energy delivery surface and the second RF electrode has a second energy delivery surface.

10. The apparatus of claim 9, wherein each of the first and second RF electrodes has a tissue piercing distal end.

11. The apparatus of claim 9, wherein the first energy delivery surface and the second energy delivery surface each has a size that is sufficient to create cell necrosis in a tonsil intratonsil lymphoid stroma while substantially preserving a tonsil fibrous capsule and a mucosal surface.

12. A tonsil treatment apparatus, comprising:

an elongated member with a longitudinal axis and sized to be positionable and maneuverable in an oral cavity;

a template coupled to the elongated member and including a tissue interface surface; and

a first energy delivery device coupled to the elongated member, the first energy delivery device being laterally offset from the longitudinal axis and having a tissue penetrating distal end that is configured to be advancable relative to the tissue interface surface into a tonsil intratonsil lymphoid stroma.

13. The apparatus of claim 12, wherein the first energy delivery device has an energy delivery surface, wherein a distal end of the first energy delivery device is configured to deliver substantially no energy.

14. The apparatus of claim 12, wherein the tissue interface surface that is substantially non-conductive of electromagnetic energy.

15. The apparatus of claim 12, wherein the first energy delivery device is an RF electrode.

16. The apparatus of claim 12, further comprising:

a second energy delivery device coupled to the elongated member and laterally offset from the longitudinal axis of the elongated member.

17. The apparatus of claims 16, wherein the distal end of the second energy delivery device has a larger cross-sectional diameter than an elongated section of the first energy delivery device.

18. The apparatus of claim 16, wherein the first energy delivery surface and the second energy delivery surface each have a size that is sufficient to create cell necrosis in the tonsil intratonsil lymphoid stroma while preserving a tonsil fibrous capsule and mucosal surface.

19. A cell necrosis apparatus, comprising:

an elongated member with a longitudinal axis and sized to be positionable and maneuverable in an oral cavity;

a template fixably positioned at a distal portion of the elongated member and including a tissue interface surface;

a first and a second energy delivery device coupled to the elongated member, each of the first and second energy delivery devices having a tissue piercing distal end;

wherein said template has a lumen for guiding said first energy delivery device and a second lumen for guiding said second energy delivery device, and wherein each lumen has a distal opening located distal to a portion of the template configured to be positioned against an exterior surface of a selected anatomical structure.

20. A cell necrosis apparatus, comprising:

an elongated member with a longitudinal axis and sized to be positionable and maneuverable in an oral cavity;

a template fixably positioned at a distal portion of the elongated member, wherein a portion of the template is positionable to engage an exterior surface of a selected anatomical structure while another portion of the template is positionable below said exterior surface;

a first and a second energy delivery device coupled to the elongated member, each of the first and second energy delivery devices having a tissue piercing distal end.

21. A cell necrosis apparatus, comprising:

an elongated member with a longitudinal axis and sized to be positionable and maneuverable in an oral cavity;

a template fixably positioned at a distal portion of the elongated member and including a tissue interface surface extending radially outward beyond an elongate portion of the elongate member;

a first and a second energy delivery device coupled to the elongated member, each of the first and second energy delivery devices having a tissue piercing distal end.

22. A cell necrosis apparatus, comprising:

an elongated member with a longitudinal axis and sized to be positionable and maneuverable in an oral cavity;

a template fixably positioned at a distal portion of the elongated member including a curved tissue interface surface;

a first and a second energy delivery device coupled to the elongated member, each of the first and second energy delivery devices having a tissue piercing distal end.