Fluid handling system

Patent metadata

Field	Value
Publication number	US-9381288-B2
Application number	US-201414203978-A
Country	US
Kind code	B2
Filing date	Mar 11, 2014
Priority date	Mar 13, 2013
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

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.

First claim

What is claimed is:

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),
wherein the closure member includes an occlusion bed comprising a cavity in the interface body and a tube segment disposed at least partially in the cavity of the occlusion bed,
wherein in the second state, a first pump of the one or more pumps compresses the tube segment against the occlusion bed.

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, the occlusion bed comprising a cavity in the interface body; and
a tube segment disposed on the interface body at least partially in the cavity of 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 to compress the tube Segment against 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 tube segment comprises an arcuate shape.

17. The removable interface of claim 16 , wherein the tube segment generally conforms to the occlusion bed.

18. The removable interface of claim 13 , further comprising a second occlusion bed and a second tube segment disposed at least partially in the second occlusion bed.

19. The removable interface of claim 18 , wherein the first tube segment is in fluid communication with a fluid supply line and the second tube segment is in fluid communication with a fluid waste line.

20. 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.

21. The removable interface of claim 13 , wherein, when the interface body is inserted into the interface aperture of the console housing, the pump becomes operably engaged with the tube segment and occlusion bed substantially simultaneously with the electrical interconnect electrically coupling with the electrical component.

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

23. 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 comprising a cavity in the interface body, a tube segment mounted on the interface body at least partially in the cavity of 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.

24. The method of claim 23 , further comprising rotating an endpiece of the interface body relative to the interface aperture to secure the interface body to the console housing.

25. The method of claim 24 , wherein rotating the endpiece comprises rotating the endpiece about an axis substantially perpendicular to the interface aperture.

26. The method of claim 24 , further comprising activating a disengagement member to mechanically release the interface body from the console housing.

27. The method of claim 23 , wherein the pump roller compresses the tube segment against the occlusion bed and the electrical interconn

Assignees

• Thoratec Corp

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

Classifications

• A61M5/142

  Pressure infusion, e.g. using pumps · CPC title

• A61M5/172

  electrical or electronic {(A61M5/16804, A61M5/16831 take precedence)} · CPC title

• A61M1/122

  Human Necessities · mapped topic

• A61M1/1034

  Human Necessities · mapped topic

• A61M1/3659 Primary

  Cannulae pertaining to extracorporeal circulation · CPC title