FLUID HANDLING SYSTEM

• US 20140275725A1
• Filed: 03/11/2014
• Published: 09/18/2014
• Est. Priority Date: 03/13/2013
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories), TCI1 LLC, Thoratec LLC
• Original Assignee: Thoratec LLC
• Inventors: Schenck, Alan, Green, Michael L., Fitzgerald, Keif M., Muller, Paul F., Sullivan, Joseph P., Schubert, Keith, Bristol, Peter W., Mills, Jeffrey Paul, Leonard, Paul C., Keenan, Richard L.
• Granted Patent: US 9,381,288 B2
• Time in Patent Office: Days
• US Class Current: 600/16
• CPC Class Codes: A61M 1/1524 the interface providing means for actuating on functional elements of the cassette, e.g. plungers
• CPC Class Codes: A61M 1/155 with treatment-fluid pumping means or components thereof
• CPC Class Codes: A61M 1/3659 Cannulae pertaining to extracorporeal circulation
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 60/13 by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/279 Peristaltic pumps, e.g. roller pumps
• CPC Class Codes: A61M 60/414 transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
• CPC Class Codes: A61M 60/531 using blood pressure data, e.g. from blood pressure sensors
• CPC Class Codes: A61M 60/546 of blood flow, e.g. by adapting rotor speed
• CPC Class Codes: A61M 60/878 Electrical connections within the patient's body

Abstract

Various embodiments of a fluid handling system are disclosed herein. For example, the fluid handling system can include a catheter assembly and a console configured to control the operation of the catheter assembly. A removable interface member can be configured to provide fluid and electrical communication between the catheter assembly and the console.

Claims

1. A fluid handling system, the system comprising:

a housing comprising;

one or more pumps;

a controller configured to operate the pump(s); and

a catheter assembly comprising;

a catheter body having a proximal portion and an operative device at a distal portion; and

an infusion system in fluid communication with the proximal portion of the catheter body, the infusion system comprising a closure member configured to be separate from the housing in a first state and to at least partially secure the infusion system to the housing in a second state, wherein upon engagement of the closure member with the housing in the second state, the infusion system is operably engaged with the pump(s).

2. The system of claim 1, wherein the housing comprises an aperture, and wherein the closure member engages with the housing when a portion of the closure member is inserted into the aperture.

3. The system of claim 2, wherein the closure member is configured to substantially secure the infusion system to the housing in a third state.

4. The system of claim 3, wherein the closure member is configured to substantially secure the infusion system to the housing when the closure member is rotated relative to the housing.

5. The system of claim 3, wherein the housing comprises a disengagement member, the disengagement member configured to move the closure member from the third state to the second state such that the closure member partially secures the infusion system to the housing.

6. The system of claim 1, wherein upon engagement of the closure member with the housing in the second state, an electrical connection is formed between the housing and an electrical component of the closure member.

7. The system of claim 6, wherein the electrical connection is formed substantially at the same time that the infusion system becomes operably engaged with the pump(s).

8. The system of claim 6, wherein the catheter assembly further comprises a motor assembly in electrical communication with the electrical component of the closure member.

9. The system of claim 6, wherein the catheter assembly further comprises one or more sensors in electrical communication with the electrical component of the closure member.

10. The system of claim 1, wherein the infusion system comprises:

a waste line in fluid communication with the catheter body and configured to convey waste fluid out of the catheter assembly; and

a first infusate line in fluid communication with the catheter body and configured to supply fluid into the catheter assembly.

11. The system of claim 10, wherein the catheter assembly further comprises an elongate body, the catheter body disposed within the elongate body, and wherein the infusion system comprises a second infusate line in fluid communication with the elongate body.

12. The system of claim 11, wherein the second infusate line is configured to supply fluid between the elongate body and the catheter body.

13. A removable interface member for a fluid handling system, the interface member comprising:

an interface body sized and shaped to be inserted into an interface aperture of a console housing;

an electrical component disposed on the interface body;

an occlusion bed disposed on the interface body; and

a tube segment disposed on the interface body near the occlusion bed,

wherein the interface body is dimensioned such that when the interface body is inserted into the interface aperture of the console housing, a pump in the console housing is operably engaged with the tube segment and the occlusion bed, and an electrical interconnect in the console housing is electrically coupled with the electrical component on the interface body.

14. The removable interface of claim 13, further comprising a locking mechanism such that when a portion of the interface body is rotated relative to the interface aperture, the interface body is securely coupled to the console housing.

15. The removable interface of claim 14, wherein the interface body further comprises a rotatable cap, a protrusion, and a locking aperture sized and shaped to receive at least a portion of the protrusion, the locking mechanism comprising an internal cam that rotates with the cap, wherein when the cap is rotated, the internal cam presses the protrusion through the locking aperture and into a groove formed in the console housing.

16. The removable interface of claim 13, wherein the pump is operably engaged with the tube segment and the occlusion bed when one or more rollers of the pump compresses the tube segment against the occlusion bed.

17. The removable interface of claim 13, wherein the pump becomes operably engaged with the tube segment and occlusion bed substantially simultaneously with the electrical interconnect electrically coupling with the electrical component.

18. The removable interface of claim 13, further comprising one or more sensors coupled to the electrical component.

19. A method for operably coupling an infusion system to a console housing, the method comprising:

positioning an interface body of the infusion system in an interface aperture of the console housing, the interface body comprising an occlusion bed, a tube segment mounted on the interface body near the occlusion bed, and an electrical component; and

inserting the interface body through the interface aperture until a pump roller of the console housing compresses the tube segment against the occlusion bed and until an electrical interconnect of the console housing is electrically coupled to the electrical component of the interface body.

20. The method of claim 19, further comprising rotating an endpiece of the interface body relative to the interface aperture to secure the interface body to the console housing.

21. The method of claim 20, wherein rotating the endpiece comprises rotating the endpiece about an axis substantially perpendicular to the interface aperture.

22. The method of claim 20, further comprising activating a disengagement member to mechanically release the interface body from the console housing.

23. The method of claim 19, wherein the pump roller compresses the tube segment against the occlusion bed and the electrical interconnect is electrically coupled to the electrical component substantially simultaneously.

24. A method for priming a catheter assembly, the catheter assembly comprising an elongate body and an operative device, the method comprising:

inserting the operative device of the catheter assembly into a priming vessel;

securing a proximal portion of the priming vessel to a distal portion of the elongate body, such that the elongate body is in fluid communication with the priming vessel; and

delivering fluid through the elongate body and the priming vessel to expel air within the catheter assembly.

25. The method of claim 24, further comprising removing the priming vessel from the catheter assembly.

26. The method of claim 25, further comprising, after removing the priming vessel, inserting the operative device of the catheter assembly into a vascular system of a patient.

27. The method of claim 24, further comprising providing relative movement between the priming vessel and the operative device to collapse the operative device to a stored configuration.