Endoscopic portal having multiluminal trumpet valve

• US 5,676,657 A
• Filed: 03/19/1996
• Issued: 10/14/1997
• Est. Priority Date: 07/26/1990
• Status: Expired due to Fees

• Current Assignee: Inbae Yoon
• Original Assignee: Inbae Yoon
• Inventors: Yoon, InBae
• Primary Examiner(s): Rimell, Sam
• Assistant Examiner(s): YEH, LUKE
• Application Number:
  US08/618,326
• Time in Patent Office: 574 Days
• Field of Search: 604/164, 604/167, 604/256, 604/246, 604/247, 604/248, 604/249
• US Class Current: 604/167.03
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24

Abstract

An endoscopic portal for establishing communication with a body cavity for the introduction of instruments therethrough includes a sleeve for providing a passage through a cavity wall and a valve biased to a normal closed position preventing the passage of instruments and fluids through the sleeve. The sleeve includes a distal end for being disposed in a body cavity, a proximal end for being disposed externally of the body cavity and a lumen between the distal and proximal ends. The valve includes a cylindrical valve body extending in a transverse direction across the lumen and having a plurality of diametric valve passages therethrough of different cross sectional sizes. The valve body is biased to the normal closed position wherein the valve body blocks communication through the lumen and wherein the valve passages are not disposed within the lumen. The valve body is movable axially from the normal closed position to position the valve passages within the lumen, and the valve body is rotatable about an axis transverse to the longitudinal axis of the sleeve to align a selected one of the valve passages axially with the lumen such that an instrument having a cross sectional size corresponding to the cross sectional size of the selected valve passage can be introduced through the lumen to extend through the valve body in sealing relation.

Claims

1. An endoscopic portal for establishing communication with a body cavity for the introduction of instruments through the endoscopic portal comprising

a sleeve for providing a passage through a cavity wall and having a distal end for being disposed in a body cavity, a proximal end for being disposed externally of the body cavity, a longitudinal axis and a lumen between said distal and proximal ends;

and

a valve carried by said sleeve and including a valve axis transverse to said longitudinal axis, a valve body and a bias member biasing said valve body axially for axial movement relative to said sleeve in a direction transverse to said longitudinal axis and biasing said valve body rotationally for rotational movement relative to said sleeve about said valve axis, said valve body including a blocking portion and a valve passage defining portion having a plurality of valve passages therethrough each having a different cross sectional size, said valve body being biased by said bias member to a closed position wherein said blocking portion is disposed in said lumen and said valve passage defining portion is disposed externally of said lumen, said valve body being movable axially from said closed position in said direction transverse to said longitudinal axis and rotationally about said valve axis to selectively align one of said valve passages axially with said lumen whereby an instrument having a cross sectional size corresponding to said cross sectional size of said one valve passage can be introduced through said one valve passage and said lumen to pass through said valve body in sealing relation therewith.

2. An endoscopic portal as recited in claim 1 wherein said valve is disposed between said distal and proximal ends of said sleeve.

3. An endoscopic portal for establishing communication with a body cavity for the introduction of instruments through the endoscopic portal comprising

a sleeve for providing a passage through a cavity wall and having a distal end for being disposed in a body cavity, a proximal end for being disposed externally of the body cavity, a longitudinal axis and a lumen between said distal and proximal ends;

and

a valve carried by said sleeve and including a valve body mounted to said sleeve for movement in a direction transverse to said longitudinal axis, said valve body including a blocking portion and a valve passage defining portion having a plurality of valve passages therethrough each having a different cross sectional size, said valve body including a cylindrical member having a hollow section defining said blocking portion, a solid section defining said valve passage defining portion and a plurality of diametric passages formed in said solid section defining said valve passages, said valve body being biased to a closed position wherein said blocking portion is disposed in said lumen and said valve passage defining portion is disposed externally of said lumen, said valve body being movable from said closed position in said direction transverse to said axis to selectively align one of said valve passages axially with said lumen whereby an instrument having a cross sectional size corresponding to said cross sectional size of said one valve passage can be introduced through said one valve passage and said lumen to pass through said valve body in sealing relation therewith.

4. An endoscopic portal as recited in claim 3 wherein said valve body further includes a handle coupled with said cylindrical member for manually moving said valve body from said closed position to selectively align one of said valve passages axially with said lumen.

5. An endoscopic portal as recited in claim 4 wherein said handle includes a shaft protruding from said valve body and a knob carried by said shaft.

6. An endoscopic portal as recited in claim 5 wherein said valve further includes a spring biasing said valve body to said closed position.

7. An endoscopic portal as recited in claim 6 wherein said sleeve includes a pair of hollow end members extending transversely from said sleeve and communicating with said lumen, said end members having a common longitudinal axis disposed perpendicular to said longitudinal axis of said sleeve, said end members defining a cavity in which said valve is received.

8. An endoscopic portal as recited in claim 7 wherein said end members extend transversely from said sleeve to terminate at outer ends and further including an end cap disposed on each of said outer ends, said spring being disposed between said valve body and one of said end caps.

9. An endoscopic portal as recited in claim 8 wherein said blocking portion has a recess therein and said spring is disposed in said recess.

10. An endoscopic portal for establishing communication with a body cavity for the introduction of instruments through the endoscopic portal comprising

a sleeve for providing a passage through a cavity wall and having a distal end for being disposed in a body cavity, a proximal end for being disposed externally of the body cavity, a lumen between said distal and proximal ends and a longitudinal axis;

and

a valve carried by said sleeve and including a valve body having a longitudinal axis, a blocking portion and a valve passage defining portion having a plurality of valve passages therethrough each having a different cross sectional size, said valve body being biased axially relative to said sleeve to an extended position wherein said valve passage defining portion protrudes laterally from said sleeve and said blocking portion is disposed in said lumen to block communication therewith, said valve body being biased rotationally relative to said sleeve to a first rotational position wherein at least one of said valve passages is disposed at an angle with said longitudinal axis of said sleeve, said valve body being movable axially against said axial bias to position said valve passage defining portion in said lumen and being rotatable about said longitudinal axis of said valve body against said rotational bias to align said one valve passage axially with said lumen to provide a passage through said valve body for receiving an instrument through said one valve passage in sealing relation.

11. An endoscopic portal as recited in claim 10 wherein said valve includes a bias member biasing said valve body axially and rotationally.

12. An endoscopic portal as recited in claim 11 and further including a housing receiving said valve and wherein said bias member includes a helical coil spring connected to said housing and said valve body.

13. An endoscopic portal as recited in claim 12 wherein said housing is disposed between said distal and proximal ends of said sleeve.

14. An endoscopic portal as recited in claim 13 wherein said valve passages have longitudinal axes disposed perpendicular to said longitudinal axis of said valve body.

15. An endoscopic portal as recited in claim 14 wherein said valve body is rotatable about said longitudinal axis of said valve body to align said one valve passage axially with said lumen.

16. An endoscopic portal for establishing communication with a body cavity for the introduction of instruments through the endoscopic portal comprising

a sleeve for providing a passage through a cavity wall and having a distal end for being disposed in a body cavity, a proximal end for being disposed externally of the body cavity, a lumen between said distal and proximal ends and a longitudinal axis;

and

a valve carried by said sleeve and including a cylindrical valve body extending in a transverse direction across said lumen and having a plurality of intersecting diametric valve passages therethrough of different cross sectional sizes, said valve body being biased to a closed position wherein said valve body blocks communication through said lumen and said valve passages are not disposed within said lumen, said valve body being movable axially from said closed position in said transverse direction to position said valve passages within said lumen, said valve body being rotatable about an axis transverse to said longitudinal axis of said sleeve to align a selected one of said valve passages axially with said lumen such that an instrument having a size corresponding to said cross sectional size of said selected valve passage can be introduced therethrough to extend through said valve in sealing relation.

17. An endoscopic portal as recited in claim 16 wherein said valve body has four valve passages disposed at 45°

spaced locations.

18. An endoscopic portal as recited in claim 16 wherein said valve includes indicia for visually indicating the location and size of said valve passages.

19. An endoscopic portal as recited in claim 18 wherein said valve includes a handle for manually moving said valve body axially and rotationally and said indicia is disposed on said handle.

20. An endoscopic portal as recited in claim 19 and further including a removable end cap at said proximal end of said sleeve and having an opening therein aligned with said lumen and corresponding in size to the cross sectional size of the instrument.