Needle probe guide

• US 10,492,880 B2
• Filed: 12/13/2016
• Issued: 12/03/2019
• Est. Priority Date: 07/30/2012
• Status: Active Grant

• Current Assignee: Ethicon, LLC (Johnson & Johnson)
• Original Assignee: Ethicon, LLC (Johnson & Johnson)
• Inventors: Tellio, Karalyn R., Zeiner, Mark S., Plescia, David N., Long, Gary L., Shires, Peter K.
• Primary Examiner(s): Flory, Christopher A
• Application Number:
  US15/377,018
• Publication Number:
  US 20170086937A1
• Time in Patent Office: 1,085 Days
• Field of Search: 607 2, 606 34, 606 41
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/00154 pulsed
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00613 Irreversible electroporation reversible electroporation A61N1/327
• CPC Class Codes: A61B 2018/00922 by switching or controlling the treatment energy directly within the hand-piece
• CPC Class Codes: A61B 2018/143 multiple needles
• CPC Class Codes: A61B 2018/1475 Electrodes retractable in or deployable from a housing
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/11 with guides for needles or instruments, e.g. arcuate slides or ball joints

Abstract

A surgical device for guiding electrodes into a tissue treatment region is disclosed. The surgical device includes electrodes configured to conduct current therebetween upon energizing at least one of the electrodes, a first body portion, and a second body portion. The first body portion and the second body portion are configured to operably form a first channel that extends along a first axis and a second channel that extends along a second axis. The surgical device further includes a predefined electrical ablation distance defined between the first axis and the second axis and a spring positioned between the first body portion and the second body portion. The spring is deformable between a first configuration and a second configuration, wherein the first channel is configured to open to receive one of the electrodes when the spring is in the first configuration. The first channel is configured to close and axially restrain the electrode received therein when the spring is in the second configuration.

Claims

1. A surgical device for guiding electrodes into a tissue treatment region, the surgical device comprising:

electrodes configured to conduct current therebetween upon energizing at least one of the electrodes;

a first body portion;

a second body portion, wherein the first body portion and the second body portion are configured to operably form a first channel that extends along a first axis and a second channel that extends along a second axis;

a predefined electrical ablation distance defined between the first axis and the second axis; and

a spring positioned between the first body portion and the second body portion, wherein the spring is deformable between a first configuration and a second configuration, wherein the first channel is configured to open to receive one of the electrodes when the spring is in the first configuration, and wherein the first channel is configured to close and axially restrain the electrode received therein when the spring is in the second configuration.

2. The surgical device of claim 1, wherein the first body portion comprises a substantially flat surface coupled to a first plurality of catches on a first side of the substantially flat surface and to a second plurality of catches on a second side of the substantially flat surface.

3. The surgical device of claim 2, wherein each of the first plurality of catches and the second plurality of catches comprises a hooked extension.

4. The surgical device of claim 1, wherein the second body portion comprises a longitudinal body coupled to a leg, wherein the first body portion comprises a rectangular body with a rectangular slot, and wherein the leg is configured to fit within the rectangular slot.

5. The surgical device of claim 1, wherein the spring comprises one of a coil, a leaf spring, or collapsible foam.

6. The surgical device of claim 1, wherein the spring is compressed in the first configuration.

7. The surgical device of claim 1, wherein the predefined electrical ablation distance is between approximately 1.0 cm and approximately 2.5 cm.

8. The surgical device of claim 1, wherein the first channel and the second channel are formed simultaneously when the spring moves from the first configuration to the second configuration.

9. The surgical device of claim 1, wherein the first body portion comprises a first proximal end and a first distal end, wherein the second body portion comprises a second proximal end and a second distal end, and wherein the spring is configured to force the first proximal end away from the second proximal end and the first distal end away from the second distal end to move from the first configuration towards the second configuration.

10. The surgical device of claim 1, wherein the spring is spaced between the first axis and the second axis.

11. A surgical device for guiding electrodes into a tissue treatment region, the surgical device comprising:

electrodes configured to conduct current therebetween upon energizing at least one of the electrodes;

a first body portion;

a second body portion, wherein the first body portion and the second body portion are configured to operably form a first channel that extends along a first axis and a second channel that extends along a second axis;

a predefined electrical ablation distance defined between the first axis and the second axis; and

an actuator assembly positioned between the first body portion and the second body portion, wherein the actuator assembly is movable between a first configuration and a second configuration, wherein the first channel and the second channel are configured to open to receive one of the electrodes when the actuator assembly is in the first configuration, and wherein the first channel and the second channel are configured to close and axially restrain the electrode received therein when the actuator assembly is in the second configuration.

12. The surgical device of claim 11, wherein the actuator assembly comprises a spring.

13. The surgical device of claim 12, wherein the spring comprises one of a coil, a leaf spring, or collapsible foam.

14. The surgical device of claim 11, wherein the actuator assembly is compressed to the first configuration and wherein the actuator assembly is released to resume the second configuration.

15. The surgical device of claim 11, wherein the actuator assembly is positioned in a depression of an inner surface of the second body portion.

16. The surgical device of claim 11, wherein a fastener restrains the actuator assembly between the first body portion and the second body portion.

17. The surgical device of claim 11, wherein:

the first body portion comprises a first plurality of catches and a second plurality of catches; and

the second body portion comprises a third plurality of catches and a fourth plurality of catches.

18. The surgical device of claim 17, wherein:

the first plurality of catches and the third plurality of catches form the first channel; and

the second plurality of catches and the fourth plurality of catches form the second channel.

19. A surgical device for guiding electrodes comprising:

a first electrode;

a second electrode, wherein the first electrode and the second electrode are configured to conduct current therebetween upon energizing at least one of the first electrode and the second electrode;

a first body portion comprising a plurality of first catches;

a second body portion comprising a plurality of second catches; and

a spring element positioned between the first body portion and the second body portion, wherein the spring element is movable from an initial configuration to a deformed configuration;

wherein at least one of the first catches of the first body portion and at least one of the second catches of the second body portion form a first channel extending along a first axis and structured to restrain the first electrode when the spring element is in the initial configuration;

wherein at least one of the first catches of the first body portion and at least one of the second catches of the second body portion form a second channel extending along a second axis and structured to restrain the second electrode when the spring element is in the initial configuration;

a predefined electrical ablation distance defined between the first axis and the second axis; and

wherein the first channel is structured to release the first electrode and the second channel is structured to release the second electrode when the spring element is moved to the deformed configuration.

20. The surgical device of claim 19, wherein the first channel is positioned on a first side of the first body portion, and wherein the second channel is positioned on a second side of the first body portion.

21. The surgical device of claim 19, wherein at least one fastener secures the first body portion to the second body portion.

22. The surgical device of claim 19, wherein the spring element comprises a leaf spring.

23. The surgical device of claim 19, wherein the spring element comprises a plurality of coils.

24. A surgical device for guiding electrodes comprising:

a first body portion comprising a plurality of first catches;

a second body portion comprising a plurality of second catches; and

a spring element positioned between the first body portion and the second body portion, wherein the spring element is movable from an initial configuration to a deformed configuration;

wherein at least one of the first catches of the first body portion and at least one of the second catches of the second body portion form a first channel extending along a first axis and structured to restrain a first electrode when the spring element is in the initial configuration;

wherein at least one of the first catches of the first body portion and at least one of the second catches of the second body portion form a second channel extending along a second axis and structured to restrain a second electrode when the spring element is in the initial configuration;

a predefined electrical ablation distance defined between the first axis and the second axis; and

wherein the first channel is structured to release the first electrode and the second channel is structured to release the second electrode when the spring element is moved to the deformed configuration, where the surgical device further comprises;

the first electrode and the second electrode, wherein a distal end of the first electrode is spaced from a distal end of the second electrode by the predefined electrical ablation distance when the first electrode is axially restrained in the first channel and the second electrode is restrained in the second channel, wherein the predefined electrical ablation distance corresponds to a treatment distance in a tissue treatment region, and wherein the distal ends of the first and second electrodes are operably structured to conduct current therebetween when at least one of first and second electrodes is energized by an energy source.