Recirculating cooling system for energy deliver device

• US 9,962,214 B2
• Filed: 07/28/2015
• Issued: 05/08/2018
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Larson, Eric W., Peterson, Darion R., Brannan, Joseph D.
• Primary Examiner(s): CAREY, MICHAEL JAMES
• Application Number:
  US14/811,129
• Publication Number:
  US 20150327927A1
• Time in Patent Office: 1,015 Days
• Field of Search: 606 22, 606 33, 606 34, 606 41
• 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 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/0262 using a circulating cryogenic fluid
• CPC Class Codes: A61N 2005/005 for cooling the radiator
• CPC Class Codes: F16L 2201/44 sterile
• CPC Class Codes: F16L 39/00 Joints or fittings for double-walled or multi-channel pipes or pipe assemblies

Abstract

An energy delivery device cooling system includes a reservoir connector assembly and an elongate member. The elongate member has first and second lumens in fluid communication with the reservoir. The first lumen includes an outflow port and the second lumen includes a return port each in fluid communication with the reservoir. The device further includes a tubing system having a first end and a second end. The first end connected in fluid communication with the outflow port and the second end in fluid communication with the return port. The second end configured to return a fluid to the reservoir. The tubing system connects to an energy delivery device to cool the fluid.

Claims

1. A reservoir connector assembly connectable to a reservoir having a connection port, the reservoir connector assembly comprising:

an elongate member configured to extend into the reservoir past the connection port of the reservoir, the elongate member defining a first lumen and a second lumen;

an outflow port in fluid communication with an output opening of the first lumen, the output opening configured to be positioned within the reservoir past the connection port; and

a return port in fluid communication with an inflow opening of the second lumen, the inflow opening configured to be positioned within the reservoir past the connection port.

2. The reservoir connector assembly according to claim 1, wherein the elongate member further includes a third lumen and a fourth lumen in fluid communication with the reservoir and the outflow port.

3. The reservoir connector assembly according to claim 1, further comprising a drip chamber connected downstream of the outflow port.

4. The reservoir connector assembly according to claim 3, wherein the drip chamber includes a fluid flow indicator.

5. The reservoir connector assembly according to claim 4, wherein the fluid flow indicator is a rotating cylinder.

7. The reservoir connector assembly according to claim 1, wherein the elongate member is configured to extend into a main volume of the reservoir past the connection port of the reservoir.

8. The reservoir connector assembly according to claim 1, wherein in the outflow port is configured to draw a liquid from the reservoir, and wherein the return port is configured to return the liquid to the reservoir.

6. A reservoir connector assembly connectable to a reservoir having a connection port, the reservoir connector assembly comprising:

an elongate member configured to extend into the reservoir past the connection port of the reservoir, the elongate member defining a first lumen and a second lumen;

an outflow port in fluid communication with the first lumen;

a return port in fluid communication with the second lumen; and

a drip chamber connected downstream of the outflow port, the drip chamber including a fluid flow indicator in the form of a semi-buoyant spinning cube.