Multiple port fluid control valves

• US 20030125673A1
• Filed: 10/02/2002
• Published: 07/03/2003
• Est. Priority Date: 10/04/2001
• Status: Active Grant

• Current Assignee: Medline Industries Incorporated (Medline Holdings Incorporated)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Houde, Eric, Diamond, Scott, van Diver, Mark
• Granted Patent: US 6,918,893 B2
• Time in Patent Office: Days
• US Class Current: 604/246
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: F16K 11/0856 having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug

Abstract

A fluid control valve is disclosed which, with a single valve, can manipulate flow between a saline supply, a contrast supply, a waste dump and a catheter. The control valve includes three primary positions including a contrast position where the valve provides communication between an injector and a contrast supply while isolating the saline supply and catheter. The valve also can be moved to a saline/waste position where the valve provides communication between the injector and the saline supply and/or the waste dump while isolating the contrast supply and catheter. The valve also can be moved to an injection position where the valve provides communication between the injector and the catheter. A single valve provides all three functions. The valve also may provide communication between a pressure transducer and catheter during the saline loading, waste dumping and contrast loading functions. The valve also provides protection or isolation of the pressure transducer during injection procedures.

Claims

1. A fluid control valve for controlling fluid flow between a catheter, a saline supply, a waste dump, a contrast supply and an injector, the control valve comprising:

a valve body comprising a cylindrical bore and an outer surface, the valve body further comprising a plurality of passages providing communication between the cylindrical bore and the outer surface, the plurality of passages comprising at least one output passage connected to the catheter, a contrast input passage connected to the contrast supply, at least one saline/waste input/output passage connected to the saline supply and the waste dump, and at least one injector passage connected to the injector,

a cylindrical valve stem rotatable received in the cylindrical bore, the valve stem having a central axis, the valve stem further comprising at least one connecting passage extending through the valve stem, the connecting passage selectively connecting the injector passage to at least one of the output passage, the contrast input passage and the saline/waste input/output passage depending upon a rotational position of the valve stem,

the valve stem being rotatable within the cylindrical bore to at least three rotational positions including a contrast position where the connecting passage of the valve stem provides communication between the injector passage and the contrast input passage, a saline/waste position where the connecting passage provides communication between the injector passage and the saline/waste input/output passage and an injection position where the connecting passage provides communication between the injector passage and the output passage.

2. The control valve of claim 1 wherein the at least one output passage of the valve body comprises two output passages connected to the catheter including a contrast output passage and a saline output passage,

the valve body further comprising a waste input passage,

the at least one saline/waste input/output passage of the valve body comprises a separate saline input passage and a separate waste output passage,

the at least one injector passage comprises a contrast injector passage, a saline injector passage and a waste injector passage,

the valve stem further comprising a linking passage that extends from the connecting passage axially along the valve stem and out through the valve stem,

in the contrast position, the connecting passage providing communication between the contrast injector passage and the contrast output passage, the linking passage providing communication between the contrast input passage and the connecting passage,

in the injection position, the connecting passage providing communication between the saline injector passage and the saline output passage, the linking passage providing communication between the connecting passage and saline input passage,

in the saline/waste position, the connecting passage providing communication between the waste input passage and the waste injector passage, the linking passage providing communication between the connecting passage and the waste output passage.

3. The control valve of claim 2 wherein waste input passage is connected to a waste input line which connects the waste input passage to the catheter, the waste input line comprising a one-way check valve permitting flow from the catheter to the waste input passage and not vice versa,

the saline output passage is connected to a saline output line which connects the saline output passage to the catheter, the saline output line comprising a one-way check valve permitting flow from the saline output passage to the catheter and not vice versa,

the contrast output passage is connected to a contrast output line which connects the contrast output passage to the catheter, the contrast output line comprising a one-way check valve permitting flow from the contrast output passage to the catheter and not vice versa.

4. The control valve of claim 2 wherein the saline input passage is connected to a saline input line which connects the saline input passage to the saline supply, the saline input line comprising a one-way check valve permitting flow from the saline supply to the saline input passage and not vice versa,

the contrast input passage is connected to a contrast input line which connects the contrast input passage to the contrast supply, the contrast input line comprising a one-way check valve permitting flow from the contrast supply to the contrast input passage and not vice versa,

the waste output passage is connected to a waste output line which connects the waste output passage to the waste dump, the waste output line comprising a one-way check valve permitting flow from the waste output passage to the waste dump and not vice versa.

5. The control valve of claim 1 wherein the saline/waste input/output passage is connected to both a saline input line and a waste output line,

the saline input line connecting the saline/waste input/output passage to the saline supply, the saline input line comprising a one-way check valve permitting flow from the saline supply to the saline/waste input/output passage and not vice versa,

the waste output line connecting the saline/waste input/output passage to the waste dump, the waste output line comprising a one-way check valve permitting flow from the saline/waste input/output passage to the waste dump and not vice versa.

6. The control valve of claim 1 wherein the at least one connecting passage of the valve stem comprises a saline/waste connecting passage, an injector connecting passage and a contrast connecting passage,

in the contrast position, the contrast connecting passage providing communication between the injector passage and the contrast input passage,

in the saline/waste position, the saline/waste connecting passage providing communication between the injector passage and the saline/waste input/output passage, and

in the injection position, the injector connecting passage providing communication between the injector passage and the output passage.

7. The control valve of claim 6 wherein the valve body further comprises a first pressure transducer passage and a second pressure transducer passage,

in the contrast position, the saline/waste connecting passage providing communication between the output passage and the first pressure transducer passage,

in the saline/waste position, the contrast connecting passage providing communication between the output passage and the second pressure transducer passage.

8. The control valve of claim 6 wherein valve stem further comprises a first linking passage that extends from the contrast connecting passage along the valve stem and out through the valve stem, the contrast connecting passage comprising a first end and a second end, the valve stem further comprising a second linking passage that extends from the saline/waste connecting passage along the valve stem and out through the valve stem, the saline/waste connecting passage comprising a first end and a second end,

the valve body further comprising a pressure transducer passage providing communication between the cylindrical bore and a pressure transducer,

in the contrast position, the contrast connecting passage providing communication between the injector passage and the contrast input passage and the first linking passage providing communication between the pressure transducer passage and the output passage,

in the saline/waste position, the saline/waste connecting passage providing communication between the injector passage and the saline/waste input/output passage and the second linking passage providing communication between the pressure transducer passage and the output passage,

in the injection position, the injector connecting passage providing communication between the injector passage and the output passage and the pressure transducer passage being blocked by the valve stem.

9. The control valve of claim 6 wherein the saline/waste input/output passage, the output passage, the injector passage and the contrast input passage are coplanar.

10. The control valve of claim 1 wherein the at least one output passage of the valve body comprises a combination contrast/saline output passage,

the valve body further comprising a waste input passage,

the at least one saline/waste input/output passage of the valve body comprises a separate saline input passage and a separate waste output passage,

the at least one injector passage comprises a combination contrast/saline injector passage and a waste injector passage,

the valve stem further comprising a linking passage that extends from the connecting passage along the valve stem and out through the valve stem,

in the contrast position, the connecting passage providing communication between the combination contrast/saline injector passage and the combination contrast/saline output passage, in the contrast position, the linking passage providing communication between the contrast input passage and the connecting passage,

in the injection position, the connecting passage providing communication between the combination contrast/saline injector passage and the combination contrast/saline output passage, in the injection

position, the linking passage providing communication between the connecting passage and saline input passage,

in the saline/waste position, the connecting passage providing communication between the waste input passage and the waste injector passage, in the saline/waste position, in the linking passage providing communication between the connecting passage and the waste output passage.

11. The control valve of claim 10 wherein the saline input passage, the combination contrast/saline output passage, the combination contrast/saline injector passage and the contrast input passage are coplanar.

12. The control valve of claim 10 wherein waste input passage is connected to a waste input line which connects the waste input passage to the catheter, the waste input line comprising a one-way check valve permitting flow from the catheter to the waste input passage and not vice versa,

the output passage is connected to a combination contrast/saline output line which connects the combination contrast/saline output passage to the catheter, the combination contrast/saline output line comprising a one-way check valve permitting flow from the combination contrast/saline output passage to the catheter and not vice versa,

the contrast output passage is connected to a contrast output line which connects the contrast output passage to the catheter, the contrast output line comprising a one-way check valve permitting flow from the contrast output passage to the catheter and not vice versa.

13. The control valve of claim 10 wherein the saline input passage is connected to a saline input line which connects the saline input passage to the saline supply, the saline input line comprising a one-way check valve permitting flow from the saline supply to the saline input passage and not vice versa,

the contrast input passage is connected to a contrast input line which connects the contrast input passage to the contrast supply, the contrast input line comprising a one-way check valve permitting flow from the contrast supply to the contrast input passage and not vice versa,

the waste output passage is connected to a waste output line which connects the waste output passage to the waste dump, the waste output line comprising a one-way check valve permitting flow from the waste output passage to the waste dump and not vice versa.

14. The control valve of claim 1 wherein the at least one output passage of the valve body comprises a combination input/output passage through which saline and contrast passes towards the catheter and through which waste passes from the catheter, the valve body further comprising a pressure transducer passage,

the at least one connecting passage comprising a injector connecting passage, a contrast connecting passage, a saline/waste connecting passage and a pressure transducer connecting passage,

in the contrast position, the contrast connecting passage providing communication between the contrast input passage and the injector passage and the pressure transducer connecting passage providing communication between the combination input/output passage and the pressure transducer passage,

in the injection position, the injector connecting passage providing communication between the injector passage and the combination saline/waste input/output passage and the pressure transducer passage being blocked by the valve stem,

in the saline/waste position, the saline/waste connecting passage providing communication between the saline/waste input/output passage and the injector passage and the pressure transducer connecting passage providing communication between the combination input/output passage and the pressure transducer passage.

15. The control valve of claim 14 wherein the combination input/output passage, the pressure transducer passage, the saline/waste input/output passage and the injector passage are coplanar.

16. The control valve of claim 14 wherein the combination input/output passage, the pressure transducer passage, the saline/waste input/output passage, the injector passage and the contrast input passage are coplanar.

17. The control valve of claim 14 wherein the saline/waste input/output passage is connected to both a saline input line and a waste output line,

the saline input line connecting the saline/waste input/output passage to the saline supply, the saline input line comprising a one-way check valve permitting flow from the saline supply to the saline/waste input/output passage and not vice versa,

the waste output line connecting the saline/waste input/output passage to the waste dump, the waste output line comprising a one-way check valve permitting flow from the saline/waste input/output passage to the waste dump and not vice versa.

18. The control valve of claim 1 wherein the at least one connecting passage comprises an injector connecting passage and a combination saline/waste/contrast connecting passage,

in the contrast position, the combination saline/waste/contrast connecting passage providing communication between the contrast input passage and the injector passage,

in the injection position, the injector connecting passage providing communication between the injector passage and the output passage,

in the saline/waste position, the combination saline/waste/contrast connecting passage providing communication between the saline/waste input/output passage and the injector passage.

19. The control valve of claim 18 wherein the valve stem further comprises a first linking passage and a second linking passage and the valve body further comprises a pressure transducer port,

in the contrast position, the first linking passage providing communication between the output passage and the pressure transducer passage,

in the injection position, the pressure transducer passage being blocked by the valve stem,

in the saline/waste position, the second linking passage providing communication between the output passage and the pressure transducer passage.

20. The control valve of claim 1 wherein the at least one output passage of the valve body comprises two output passages connected to the catheter including a contrast output passage and a saline output passage,

the valve body further comprising a waste input passage,

the at least one saline/waste input/output passage of the valve body comprises a separate saline input passage and a separate waste output passage,

the connecting passage of the valve stem extending axially along the valve stem,

the valve stem further comprising a contrast linking passage that extends transversely through the connecting passage and through the valve stem, a saline linking passage that extends transversely through the connecting passage and through the valve stem, and a waste linking passage that extends transversely through the connecting passage and through the valve stem,

in the contrast position, the connecting and contrast linking passages providing communication between the injector passage, the contrast input passage and the contrast output passage, in the contrast position, the saline and waste linking passages are blocked by the valve body,

in the injection position, the connecting and saline linking passages providing communication between the injector passage, the saline output passage, and the saline input passage, in the injection position, the contrast and waste linking passages are blocked by the valve body;

in the saline/waste position, the connecting and waste linking passages providing communication between the injector passage, the waste input passage and the waste output passage, in the saline/waste position, the saline and contrast linking passages are blocked by the valve body.

21. The control valve of claim 20 wherein waste input passage is connected to a waste input line which connects the waste input passage to the catheter, the waste input line comprising a one-way check valve permitting flow from the catheter to the waste input passage and not vice versa,

the saline output passage is connected to a saline output line which connects the saline output passage to the catheter, the saline output line comprising a one-way check valve permitting flow from the saline output passage to the catheter and not vice versa,

the contrast output passage is connected to a contrast output line which connects the contrast output passage to the catheter, the contrast output line comprising a one-way check valve permitting flow from the contrast output passage to the catheter and not vice versa.

22. The control valve of claim 20 wherein the saline input passage is connected to a saline input line which connects the saline input passage to the saline supply, the saline input line comprising a one-way check valve permitting flow from the saline supply to the saline input passage and not vice versa,

the contrast input passage is connected to a contrast input line which connects the contrast input passage to the contrast supply, the contrast input line comprising a one-way check valve permitting flow from the contrast supply to the contrast input passage and not vice versa,

the waste output passage is connected to a waste output line which connects the waste output passage to the waste dump, the waste output line comprising a one-way check valve permitting flow from the waste output passage to the waste dump and not vice versa.

23. A fluid control valve for controlling fluid flow between a catheter, a saline supply, a waste dump, a contrast supply and an injector, the control valve comprising:

a single valve means movable to at least three rotational positions including

a contrast position where the valve means provides communication between the injector and the contrast supply while isolating the saline supply,

a saline/waste position where the valve means provides communication between the injector and the saline supply and the waste dump while isolating the contrast supply, and

an injection position where the valve means provides communication between the injector and the catheter while isolating the contrast supply.

24. A fluid control valve for controlling fluid flow between a catheter, a saline supply, a waste dump, a contrast supply, a pressure transducer and an injector, the control valve comprising:

a single valve means movable to at least three rotational positions including

a contrast position where the valve means provides communication between the injector the contrast supply while isolating the saline supply and while isolating the catheter and pressure transducer from the injector but providing communication between the catheter and the pressure transducer,

a saline/waste position where the valve means provides communication between the injector and the saline supply and the waste dump while isolating the contrast supply and while isolating the catheter and pressure transducer from the injector but providing communication between the catheter and the pressure transducer; and

an injection position where the valve means provides communication between the injector and the catheter while isolating the pressure transducer, contrast supply and waste dump.

25. A fluid control valve for controlling fluid flow between a catheter, a saline supply, a waste dump, a contrast supply, a pressure transducer and an injector, the control valve comprising:

a single valve means movable to at least three rotational positions including

a contrast position where the valve means provides communication between the injector the contrast supply while isolating the saline supply and while isolating the catheter and pressure transducer from the injector but providing communication between the catheter and the pressure transducer,

a waste position where the valve means provides communication between the injector and the waste dump while isolating the contrast supply and while isolating the catheter and pressure transducer from the injector but providing communication between the catheter and the pressure transducer; and

an injection position where the valve means provides communication between the injector, the saline supply and the catheter while isolating the pressure transducer, contrast supply, and waste dump.