Septoplasty Instrument

• US 20120316557A1
• Filed: 06/08/2011
• Published: 12/13/2012
• Est. Priority Date: 06/08/2011
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Sartor, Joe D., Heard, David N.
• Application Number:
  US13/156,161
• Publication Number:
  US 20120316557A1
• Time in Patent Office: Days
• US Class Current: 606/41
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00083 low, i.e. electrically insulating
• CPC Class Codes: A61B 2018/00327 Ear, nose or throat
• CPC Class Codes: A61B 2018/00648 using more than one sensed parameter
• 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

Abstract

A septoplasty instrument includes at least one shaft having an end effector at a distal end thereof. The end effector includes first and second electrode members, each having an electrode disposed within an insulative housing. At least one of the housings includes a lumen configured to circulate a cooling fluid therethrough. The lumen extends the length of the electrode member along an outer periphery thereof. At least one of the electrodes is adapted to conduct energy through tissue disposed therebetween. The electrode members are positionable on either side of the nasal septum. Upon application of energy to the electrode(s), energy is conduced between the electrodes and through the nasal septum such that the nasal septum is heated above about 50° C. and up to about 57° C. to allow reformation thereof, while the cooling fluid is circulated within the lumen to maintain tissue surrounding the electrode in a cooled state.

Claims

1. A septoplasty instrument, comprising:

at least one shaft, the at least one shaft having an end effector assembly disposed at a distal end thereof, the end effector assembly including;

first and second electrode members spaced-apart from one another, each electrode member including an electrode disposed within an insulative housing, the housing of at least one electrode including a lumen defined therein configured to circulate a cooling fluid therethrough, the lumen extending a length of the electrode member along an outer periphery thereof, at least one of the electrodes adapted to connect to a source of electrosurgical energy for conducting energy through tissue disposed therebetween, each electrode member configured for insertion into a nostril of a patient such that the nasal septum of the patient is disposed between the first and second electrode members, wherein, upon application of electrosurgical energy to the at least one electrode, energy is conducted between the electrodes and through the nasal septum such that the nasal septum is heated above about 50°

C. and up to about 57°

C. to allow reformation thereof, and wherein the cooling fluid is circulated within the lumen to maintain tissue surrounding the electrode in a cooled state.

2. The septoplasty instrument according to claim 1, wherein a first electrical potential is provided to the first electrode member and wherein a second electrical potential is provided to the second electrode member such that energy is conducted between the electrodes and through the nasal septum disposed therebetween.

3. The septoplasty instrument according to claim 1, wherein the cooling fluid is one of water and glycol.

4. The septoplasty instrument according to claim 1, further comprising first and second shaft members having the respective first and second electrode members disposed at distal ends thereof.

5. The septoplasty instrument according to claim 4, wherein the first and second shaft members are pivotable with respect to one another about a pivot to move the electrode members between a spaced position relative to one another and a closer position relative to one another for grasping the nasal septum therebetween.

6. The septoplasty instrument according to claim 5, further comprising a ratchet mechanism configured for selectively locking the shaft members relative to one another.

7. The septoplasty instrument according to claim 1, wherein the cooling fluid circulating through the lumen of the at least one electrode members maintains the tissue surrounding the electrode members below a pre-determined temperature.

8. The septoplasty instrument according to claim 7, wherein the pre-determined temperatures is less than about 40°

C.

9. The septoplasty instrument according to claim 1, wherein the electrode members define a paddle-shaped configuration.

10. The septoplasty instrument according to claim 1, wherein the electrode members define a needle-shaped configuration having a sharpened distal end configured to at least partially penetrate surface tissue adjacent the nasal septum.

11. A septoplasty instrument, comprising:

at least one shaft, the at least one shaft having an end effector assembly disposed at distal end thereof, one of the at least one shafts adapted to connect to a fluid source for supplying cooling fluid to the end effector assembly, the end effector assembly including;

first and second electrode members spaced-apart from one another, each electrode member including an electrode disposed within an insulative housing, the housing of at least one electrode including a lumen defined therein configured to circulate a cooling fluid therethrough, the lumen having an input and an output, the lumen extending a length of the electrode member along an outer periphery thereof and configured for circulating a cooling fluid from the shaft connected to the fluid source, into the input, through the lumen, and out of the output, at least one of the electrodes adapted to connect to a source of electrosurgical energy for conducting energy through tissue disposed therebetween, each electrode member configured for insertion into a nostril of a patient such that the nasal septum of the patient is disposed between the first and second electrode members, wherein, upon application of electrosurgical energy to the at least one electrode, energy is conducted between the electrodes and through the nasal septum such that the nasal septum is heated above about 50°

C. and up to about 57°

C. to allow reformation thereof, and wherein the cooling fluid is circulated within the lumen to maintain tissue in immediate contact with the electrode in a cooled state.

12. The septoplasty instrument according to claim 11, wherein the cooling fluid is one of water and glycol.

13. The septoplasty instrument according to claim 11, wherein a first electrical potential is provided to the first electrode member and wherein a second electrical potential is provided to the second electrode member such that energy is conducted between the electrodes and through the nasal septum disposed therebetween.

14. The septoplasty instrument according to claim 11, further comprising a ratchet mechanism configured for selectively locking the shaft members relative to one another.

15. The septoplasty instrument according to claim 11, wherein the cooling fluid circulating through the lumen of the at least one electrode members maintains the tissue surrounding the electrode member at below about 40°

C.

16. A method of performing a septoplasty, comprising the steps of:

providing first and second electrode members, each electrode member including an electrode disposed within an insulative housing, the housing of at least one electrode including a lumen defined therein configured to circulate a cooling fluid therethrough, the lumen extending a length of the electrode member along an outer periphery thereof, at least one of the electrodes adapted to connect to a source of electrosurgical energy for conducting energy through tissue disposed therebetween, and wherein, upon application of electrosurgical energy to the at least one electrode, energy is conducted between the electrodes and through the nasal septum such that the nasal septum is heated;

inserting the first electrode member into a first nostril of a patient;

inserting the second electrode member into a second nostril of the patient such that the nasal septum is grasped between the first and second electrode members;

conducting electrosurgical energy between the first and second electrode members and through the nasal septum to heat the nasal septum above about 50°

C. and up to about 57°

C. to allow reformation thereof while circulating the cooling fluid within the lumen to maintain tissue surrounding the electrode in a cooled state; and

reforming the nasal septum to a reformed configuration.

17. The method according to claim 16, further comprising the steps of:

maintaining the nasal septum in the reformed configuration; and

allowing the nasal septum to cool such that the nasal septum retains the reformed configuration.

18. The method according to claim 16, wherein the cooling fluid circulating through the lumen of the at least one electrode members maintains the tissue surrounding the electrode member below about 40°

C.

19. The method according to claim 16, wherein the first and second electrode members are disposed at distal ends of respective first and second shaft members, the first and second shaft members moveable with respect to one another about a pivot to move the electrode members between a spaced position and a closer position for grasping the nasal septum therebetween.

20. A septoplasty instrument, comprising:

a pair of electrodes configured for positioning on either side of the septum, at least one of the electrodes adapted to connect to a source of electrosurgical energy for conducting electrosurgical energy between the electrodes and through the septum to heat the septum; and

a monitoring sensor configured to monitor a relative increase in conductivity of the septum during heating, wherein,

the electrosurgical energy supplied to the at least one electrode is controlled in accordance with the relative increase in conductivity of the septum such that a target relative increase in electrical conductivity is attained during heating of the septum.

21. The septoplasty instrument according to claim 20, wherein the target relative increase in conductivity of the septum is about 40%.

22. The septoplasty instrument according to claim 20, wherein the target relative increase in conductivity is maintained via a closed loop control.

23. The septoplasty instrument according to claim 20, wherein at least one of the electrodes includes a housing having a lumen defined therein and configured to circulate a cooling fluid therethrough for maintaining tissue surrounding the electrode in a cooled state during heating of the septum.