FLUID MANIFOLD CONTROL DEVICE
A manifold is disclosed which includes a manifold body that defines a main lumen, a primary injection line and a port. A check valve system is also provided which permits flow from the primary injection line to the main lumen while selectively preventing back flow from the main lumen to the primary injection line and, simultaneously, permitting flow from the port to the primary injection line while preventing back flow from the primary injection line to the port.
This application is a continuation of U.S. patent application Ser. No. 10/430,716 filed May 6, 2003, entitled, FLUID MANIFOLD CONTROL DEVICE, in the names of Kathryn Mary Usher, Colin Hart and Thomas Deyette Jr., which application is incorporated by reference as though fully set forth herein.
FIELD OF THE INVENTIONThe present invention relates generally to devices used for injecting agents during intravascular medical procedures.
BACKGROUND OF THE INVENTIONDuring angiography and angioplasty procedures, fluid manifolds also known as “fluids administration sets” are employed which are connected to a catheter and which enable the physician to administer saline, contrast solution and other agents and fluids to the patient.
Typical manifolds include a distal end that is connected to the catheter and a proximal end that is connected to an injection syringe or pump. The injection syringe or pump, is typically used to inject saline or a contrast agent solution into the catheter. The manifold typically includes a plurality of ports connected to the manifold through a stop cock connection. The ports are used to inject contrast solutions and other medicaments into the catheter and may also provide a connection to a pressure transducer or other analytical equipment. Further, the opening and closing of these ports typically requires the physician to rotate a stop cock handle or other manually operated valve.
Accordingly, there is a need for an improved manifold system for use with angiographic procedures which minimizes the need for manual operation of valves relating to the injection of saline and contrast fluid.
SUMMARY OF THE DISCLOSUREA manifold control device is disclosed which can be used in catheterization and other procedures and which results in a simplified aspiration and injection of agents without the need for a manual valve operation by the physician.
An improved manifold is disclosed which comprises a main lumen having proximal and distal ends in a primary injection line connected to the proximal end of the main lumen. A port is connected to the main lumen between the proximal and distal ends thereof. A check valve is provided which permits flow between the primary injection line to the main lumen while selectively preventing back flow from the main lumen to the primary injection line. The check valve also permits flow from the port to the primary injection line while preventing back flow from the primary injection line to the port.
A method for administering fluid is also disclosed which comprises injecting fluid through a primary injection line to a main lumen while selectively preventing back flow from the main lumen to the primary injection line and injecting fluid through a port to the primary injection line while preventing back flow from the primary injection line and main lumen to the port.
In operation, a syringe connected to the female connector 19 of the primary injection line 21 can be used to inject saline or other fluid through the main lumen 23 to the catheter (not shown). The check valve 33 permits flow from the primary injection line 21, through the main lumen 23 to the catheter (not shown). The check valve 33 also prevents back flow from the main lumen 23 towards the primary injection line and syringe (not shown). Thus, the saline supply or other fluid at the syringe (or other pumping means such as, for example, an electric or manual pump) will not be contaminated by fluid disposed upstream in the main lumen 23 or catheter (not shown).
To inject fluid, e.g. contrast fluid from the port 24 to the main lumen, the syringe or other pump (not shown) is aspirated by creating a pressure drop in the direction of the arrow 34. As fluid flow in this direction from the main lumen 23 is prevented by the check valve 33, fluid flows from the port 24 in the direction of the arrow 35 and through the primary injection line 21. The fluid flows past the check valve 36. Fluid from the port, e.g., now being retained in the syringe or pump connected to the primary injection line, said fluid may be injected into the main lumen by generating pressure at the syringe or pump and create a pressure drop in the direction of the arrow 37 thereby causing the fluid that originated in the port 24 to flow past the check valve 33 in the direction of the arrow 38, into the main lumen and thereafter into the catheter (not shown). The check valve 36 prevents back flow from the syringe or pump (not shown) connected to the primary injection line 21 from flowing past the check valve 36, into the port 24 and thereby contaminating the supply or reservoir or fluid connected to the port 24.
Thus, both the supply of saline or other fluid retained in the syringe or pump connected to the port 24 and the fluid, such as contrast fluid retained in the reservoir connected to the port 24 may be protected from contamination. The fluid retained in the reservoir connected to the port 24 may be protected from contamination both by fluid retained in the syringe or pump connected to the primary injection line 21 as well as fluid disposed in the main lumen 23 upstream of the check valve 33. Any fluid retained in the syringe or pump connected to the primary injection line 21 may be protected from contamination by any fluid disposed in the main lumen upstream of the check valve 33.
Using like reference numerals to refer to like or similar parts but with the suffix “a” an alternative embodiment system 15a is shown in
Again using like reference numerals for like or similar parts except for the suffix “b,” the check valve 33b of
In a further embodiment illustrated in
In contrast, in the embodiment 15d shown in
The embodiment 15d shown in
Turning to
The valve element 65 is fixed with respect to the manifold body 22e. The actuator body 61 slides within the cavity 68 disposed within the manifold body 22e and into which the main lumen 23e and primary injection line 21e extend. In
Thus, in the first position shown in
Turning to
The actuator body 61 may be unitary in design or fabricated from multiple components. The portions of the actuator body 61 defining the lumens 64 and 66 may be retained within the cavity 68 along with the spring 73 by way of the retainer plate 74. The palm pad 62 may be threadably connected or otherwise attached to the handle 75 after the handle 75 is extended through the aperture 76 disposed in the wall 77.
In the embodiment 15f shown in
Turning to
A further embodiment of a manifold system 15h is illustrated in
Turning to
Turning to
Thus, an improved angiographic manifold is provided which, in turn, provides check valve protection for both the syringe or saline pump port as well as check valve protection for the contrast fluid reservoir without requiring the physician to manipulate cumbersome stop cock valves. In many of the embodiments, contrast fluid may be drawn into the syringe or pump from the contrast fluid reservoir and injected through the main lumen without manipulating any valve and while providing check valve protection against contamination from fluid disposed in the main lumen.
Although the disclosed devices and methods have been described with reference to preferred embodiments, those skilled in the art will recognize that changes may be made in form and detail with departing from the spirit and scope of this disclosure. As such, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting and it is the following claims, including all equivalents thereof, which are intended to define the scope of the claimed invention.
Claims
1. A manifold comprising: a main lumen having proximal and distal ends, a primary injection line connected to the proximal end of the main lumen, a port connected to the main lumen between the proximal and distal ends thereof, a check valve permitting flow from the primary injection line to the main lumen while selectively preventing back flow from the main lumen to the primary injection line and permitting flow from the port to the primary injection line while preventing back flow from the primary injection line to the port.
2. The manifold of claim 1 wherein the valve is a dual check valve.
3. The manifold of claim 2 wherein the dual check valve comprises a first check valve disposed in-line between the primary injection line and the main lumen and a second check valve disposed in-line between the primary injection line and the port.
4. The manifold of claim 2 wherein the dual check valve comprises a body comprising a first lumen at least partially disposed in the main lumen and a second lumen connected to the first lumen to form a T-connection and extending at least partially into the port, and wherein the dual check valve comprises a first check valve disposed in the body and between the primary injection line and the main lumen and a second check valve disposed in the body and between the primary injection line and the port.
5. The manifold of claim 4 wherein the first check valve is disposed in the first lumen.
6. The manifold of claim 4 wherein the second check valve is disposed in the first lumen.
7. The manifold of claim 4 wherein the second check valve is disposed in the second lumen.
8. The manifold of claim 4 wherein the first check valve is disposed in the first lumen and the second check valve is disposed in the first lumen between the primary injection line and the port and between the first check valve and the primary injection line and the port.
9. The manifold of claim 3 wherein the first check valve is connected to a movable body that-permits movement of the first check valve out of the main lumen thereby deactivating the first check valve.
10. The manifold of claim 9 wherein the movable body is movable between a first activated position where the first check valve is disposed in the main lumen and a second deactivated position where the first check valve is removed from the main lumen.
11. The manifold of claim 10 wherein the movable body comprises a finger rest for moving the movable body from the first activated position to the second deactivated position.
12-13. (canceled)
14. The manifold of claim 2 wherein the dual check valve comprises a check valve element disposed between the port and both the primary injection line and the main lumen, the dual check valve further comprising a movable body comprising a secondary lumen, the movable body being movable between a first position where flow from the port to the primary injection line causes the check valve element to engage the movable body and permit flow from the port to the primary injection line while isolating the main lumen from fluid flow from both the port and the primary injection line, the movable body further being movable to a second position where the secondary lumen is in-line with the main lumen and the primary injection line thereby permitting fluid flow between the primary injection line and the main lumen while isolating the port.
15. The manifold of claim 14 wherein the movable body comprises a finger rest for moving the movable body from the first position to the second position.
16. The manifold of claim 14 wherein the movable body comprises a palm pad for moving the movable body from the first position to the second position.
17. The manifold of claim 14 wherein the movable body comprises at least one finger grip for moving the movable body from the first position to the second position.
18. The manifold of claim 2 wherein the dual check valve comprises a movable body extending transversely between the primary injection line and the main lumen, the movable body comprising a first end connected to the port, the movable body further comprising a secondary lumen and a tertiary lumen, the secondary lumen extending between the port and the primary injection line when the movable body is in a first position, the secondary lumen accommodating a one-way check valve that permits flow from the secondary injection line to the primary injection line when the movable body is in the first position and prevents flow from the main lumen to the primary injection line and the port when the movable body is in the first position, the tertiary lumen extending between the primary injection line and the main lumen when the movable body is in a second position, the port further comprising a second check valve that prevents flow from the main lumen or primary injection line to the port.
19. The manifold of claim 18 wherein the movable body comprises a finger rest for moving the movable body from the first position to the second position.
20. The manifold of claim 18 wherein the movable body comprises a palm pad for moving the movable body from the first position to the second position.
21. The manifold of claim 18 wherein the movable body comprises at least one finger grip for moving the movable body from the first position to the second position.
22. A fluid manifold comprising: a main lumen having proximal and distal ends, a primary injection line connected to the proximal end of the main lumen, a port connected to the main lumen between the proximal and distal ends thereof, a dual check valve comprising a first check valve disposed in-line between the primary injection line and the main lumen for permitting flow from the primary injection line to the main lumen while preventing back flow from the main lumen to the primary injection line and a second check valve disposed in-line between the primary injection line and the port permitting flow from the port to the primary injection line while selectively preventing back flow from the primary injection line to the port.
23. The manifold of claim 22 wherein the first check valve is connected to a movable body that permits movement of the first check valve out of the main lumen thereby deactivating the first check valve.
24. The manifold of claim 23 wherein the movable body is movable between a first activated position where the first check valve is disposed in the main lumen and a second deactivated position where the first check valve is removed from the main lumen.
25. The manifold of claim 24 wherein the movable body comprises a finger rest for moving the movable body from the first activated position to the second deactivated position.
26-27. (canceled)
28. A manifold comprising: a main lumen having proximal and distal ends, a primary injection line connected to the proximal end of the main lumen, a port connected to the main lumen between the proximal and distal ends thereof, a body comprising a first lumen at least partially disposed in the main lumen and a second lumen connected to the first lumen to form a T-connection and extending at least partially into the port, and a dual check valve comprising a first check valve disposed in the body and between the primary injection line and the main lumen and a second check valve disposed in the body and between the primary injection line and the port.
29. The manifold of claim 28 wherein the first check valve is disposed in the first lumen.
30. The manifold of claim 28 wherein the second check valve is disposed in the first lumen.
31. The manifold of claim 28 wherein the second check valve is disposed in the second lumen.
32. The manifold of claim 28 wherein the first check valve is disposed in the first lumen and the second check valve is disposed in the first lumen between the primary injection line and the port and between the first check valve and the primary injection line and the port.
33. A manifold comprising: a main lumen having proximal and distal ends, a primary injection line connected to the proximal end of the main lumen, a port connected to the main lumen between the proximal and distal ends thereof, a dual check valve comprising a check valve element disposed between the port and both the primary injection line and the main lumen, the dual check valve further comprising a movable body comprising a secondary lumen, the movable body being movable between a first position where flow from the port to the primary injection line causes the valve element to engage the movable body and permit flow from the port to the primary injection line while isolating the main lumen from fluid flow from the primary injection line and the port, the movable body further being movable to a second position where the movable body engages the valve element and isolates the port from fluid flow from both the primary injection line and the main lumen and further where the secondary lumen is in-line with the main lumen and the primary injection line thereby permitting fluid flow between the primary injection line and the main lumen, the port further comprising a second check valve that prevents flow from the main lumen or primary injection line to the port.
34. The manifold of claim 33 wherein the movable body comprises a finger rest for moving the movable body from the first position to the second position.
35. The manifold of claim 33 wherein the movable body comprises a palm pad for moving the movable body from the first position to the second position.
36. The manifold of claim 33 wherein the movable body comprises at least one finger grip for moving the movable body from the first position to the second position.
37. A manifold comprising: a main lumen having proximal and distal ends, a primary injection line connected to the proximal end of the main lumen, a port connected to the main lumen between the proximal and distal ends thereof, a movable body extending transversely between the primary injection line and the main lumen, the movable body comprising a first end connected to the port, the movable body further comprising a secondary lumen and a tertiary lumen, the secondary lumen extending between the secondary injection line and the primary injection line when the movable body is in a first position, the secondary lumen accommodating a one-way check valve that permits flow from the port to the primary injection line when the movable body is in the first position and prevents flow from the primary injection line and the main lumen to the port when the movable body is in the first position, the tertiary lumen extending between the primary injection line and the main lumen when the movable body is in a second position.
38. The manifold of claim 35 wherein the movable body comprises a finger rest for moving the movable body from the first position to the second position.
39. The manifold of claim 35 wherein the movable body comprises a palm pad for moving the movable body from the first position to the second position.
40. The manifold of claim 35 wherein the movable body comprises at least one finger grip for moving the movable body from the first position to the second position.
41-44. (canceled)
45. A method of administering fluids, the method comprising: injecting fluid through a primary injection line to a main lumen while selectively preventing back flow from the main lumen to the primary injection line and injecting fluid through a port to the primary injection line while preventing back flow from the primary injection line and main lumen to the port.
46. The method of claim 45 wherein the injecting of fluid through the primary injection line to the main lumen further comprises injecting said fluid through a first check valve disposed between the primary injection line and the main lumen for preventing back flow from the main lumen to the primary injection line, and the injecting of fluid through the port to the primary injection line further comprises injecting said fluid through a second check valve disposed between the port and the primary injection line for preventing back flow from the primary injection line and main lumen to the port.
47. The method of claim 46 wherein the injecting of fluid through the port to primary injection line further comprises injecting said fluid through a movable body that is in a first position where flow through a check valve element causes the check valve element to engage the movable body and permit flow from the port to the primary injection line while isolating the main lumen from fluid flow from both the port and primary injection lines, and the injecting of fluid through the primary injection line to the main lumen further comprises injecting said fluid though the movable body while the movable body is in a second position where a secondary lumen passing through the movable body is in-line with the main lumen and the primary injection line thereby permitting fluid flow between the primary injection line and the main lumen while isolating the port.
48. The method of claim 45 wherein the injecting of fluid through the port to primary injection line further comprises injecting said fluid through a movable body that is in a first position wherein the movable body comprises secondary lumen extending between the port and the primary injection line when the movable body is in a first position, the secondary lumen accommodating a one-way check valve that permits flow from port to the primary injection line when the movable body is in the first position and prevents flow from the primary injection line and the main lumen to the port when the movable body is in the first position, and the injecting of fluid from the primary injection line to the main lumen further comprises injecting said fluid through the movable body when the movable body is in a second position wherein the movable body further comprises a tertiary lumen extending between the primary injection line and the main lumen when the movable body is in a second position and the movable body isolates the port when the movable body is in the second position.
Type: Application
Filed: Apr 6, 2009
Publication Date: Aug 6, 2009
Inventors: Kathryn Mary Usher (Gansevoort, NY), Colin Hart (Queensbury, NY), Thomas Deyette, JR. (Hudson Falls, NY)
Application Number: 12/419,026
International Classification: A61M 39/24 (20060101);