KR20060006974A - Rotating valve assembly - Google Patents

Abstract

Disclosed is a valve/seal assembly that is adapted for use in a variety of applications, such as for example, medical, consumer beverage, pharmaceutical containers, automobile, household appliance and marine. The disclosed valve includes, inter alia, a valve housing having an upper body portion and a lower body portion and a generally spherical valve member. The upper and lowerbody portions of the housing define an internal chamber for accommodating the valve member and a central axis for the valve. The generally spherical valve member is seated within the internal chamber of the valve housing and has an axial bore extending therethrough. The valve member is mounted for movement between an open position; wherein the axial bore of the valve member is axially aligned with the inlet and outlet ports of the valve housing, and a closed position; wherein the axial bore of the valve member is out of alignment with the inlet and outlet ports of the valve housing. The valve assembly finther includes a camming mechanism that is operatively associated with the valve housing and the valve member for moving the valve member between the open position and the closed position.

Description

Rotary valve assembly {ROTATING VALVE ASSEMBLY}

The present invention relates to a sealing mechanism, and more particularly to a compact valve assembly used in many cases, including a valve member that is easily operated between an open position and a closed position by a camming mechanism.

Those skilled in the art will recognize ball valves that are typically used in many instances in the industry. Typically, in the case of controlling fluid flow, perforated ball valves are selected. In a perforated ball valve, a generally spherical valve member has a flow opening or passage formed therethrough and is positioned to rotate in the valve housing. Valve operation or function is divided into two distinct stages. First, the ball moves between the open and closed positions by rotating it by 90 degrees so that the opening or the flow passage is moved from the flow direction, ie from the direction coaxial with the position when the valve is opened, so that the ball opening is perpendicular to the flow direction. Or normal direction. Secondly, the valve seals in the closed position to prevent flow through the opening across the ball valve. Thus, on / off control of flow through the valve is achieved by rotating the ball by 90 degrees within the valve housing.

In conventional ball valves, the rotation of the ball (ie, valve member) is typically configured to rotate about an axis that is affected by an actuator mechanism projecting from the valve housing and perpendicular to the valve flow axis. Such valves are disclosed in US Pat. No. 6,695,285 to Hotton et al.

This type of ball valve has several disadvantages. For example, the extension of the actuator from the side wall of the valve is impeded and is undesirable if the physical access to the actuator and the limitations of space are taken into account. Moreover, the actuator in such a valve must be rotated or must be rotated by at least 90 degrees to allow the valve to move between the fully open position and the fully closed position.

Therefore, it should be provided for a valve / seal mechanism that is compact, reliable, easily operated and operated with minimal rotational momentum between the open and closed positions.

FIELD OF THE INVENTION The present invention relates to valve / seal assemblies used in many cases, such as, for example, medicine, consumer beverages, pharmaceutical containers, automobiles, household appliances and ships. The disclosed valves in particular comprise a valve housing having an upper body portion and a lower body portion and a generally spherical valve member. The upper and lower body portions of the housing form a central axis of the valve and the inner chamber that houses the valve member. The housing is also axially aligned with the inlet and outlet ports respectively formed in the upper and lower body portions, respectively.

The generally spherical valve member has an axial bore seated in and extending through the inner chamber of the valve housing. The valve member is mounted for movement between the open and closed positions, in which the axial bore of the valve member is axially aligned with the inlet and outlet ports of the valve housing and in the closed position the axis of the valve member. The directional bore is not aligned with the inlet and outlet ports of the valve housing. Preferably, the valve member moves between the open and closed positions as the upper body portion of the housing rotates about the central axis between about 57 degrees and about 77 degrees relative to the lower body portion. The valve member is mounted for axial rotation in the inner chamber about an axis extending perpendicular to the central axis formed by the upper and lower body portions of the valve housing.

Preferably, the valve member includes a valve seat formed in the housing and a sealing face 54 for sealing engagement when the valve is in the closed position. When pressure is applied to the fluid or air metered by the valve, the sealing surface of the valve member includes an annular recess with an O-ring (not shown).

The valve assembly further includes a mechanism actuated with respect to the valve housing and the valve member to move the valve member between an open position and a closed position when the upper body portion of the housing is rotated about a central axis relative to the lower body portion. In a preferred embodiment, the mechanism for operating the valve assembly is a camming mechanism.

In a preferred embodiment, the camming mechanism comprises a cam face formed on the outer surface of the valve member and a cam pin formed on the inner surface of the upper body portion of the housing. The cam surface formed on the outer surface of the valve member may be formed by a pair of cam lobes formed at an angle to each other. The shape of the cam lobe may be arched or linear.

In another embodiment of the invention, the camming mechanism comprises at least one arched recess formed in the outer surface of the valve member and a cam pin formed in the inner surface of the upper body portion of the housing for engaging with the cam recess.

In a preferred embodiment, the housing of the valve assembly includes a device associated with the inlet port for engaging the valve with the vessel or tube. Additionally, if necessary, the housing includes a device associated with the outlet port for engaging the valve with the vessel or the tube.

In cases where a valve including tamper-proof features is required in the bore of the valve member or to ensure the cleanliness of the material contained in the container or container, when the valve is locked, the valve is external to the valve housing. And a frangible ring in engagement with the to visually indicate whether the valve is open. Alternatively or in combination, the valve includes a brittle sealing disc inserted into the valve's inner chamber to visually indicate whether the valve is open once again. This sealing disc also acts as a second seal for the valve at the first use of the valve. In this embodiment, the valve member includes a mechanism for drilling a disc when the valve is opened. For example, when the valve moves from the closed position to the open position, a sharp protrusion is formed at the bottom of the valve member that cuts off the sealing disc.

In an alternative embodiment, the axial bore of the valve member is formed and used to receive and store the article of manufacture when the valve is in the closed position. For example, when the valve is opened, the prized or small product is stored in the bore and made visible. Moreover, the valve may be mounted on a water bottle and the bore of the valve may contain vitamins or supplements that fall into the water when the valve is opened.

Also included in the valve is a mechanism associated with the valve housing to facilitate axial rotation of the upper body portion of the housing relative to the lower body portion.

In an alternative embodiment, the plurality of flow passages are formed in the valve member and extend therethrough along an axis perpendicular to the axial bore such that when the valve is in the closed position, fluid or air passes through the plurality of flow passages. To cross.

The invention also relates to a surgical access device, the device comprising: a valve housing, an elongated cannula sleeve operated in relation to the housing, a generally spherical valve member disposed within an inner chamber formed in the housing, the valve member between an open position and a closed position. A valve member for movement and a mechanism operative with respect to the valve housing.

The valve housing forms an inner chamber and a valve seat to receive the valve member. An axially aligned inlet and outlet port is formed in the housing and extends from the outside of the valve to the inner chamber.

The long cannula sleeve actuated in connection with the valve housing has an elongated passageway extending therethrough which defines a longitudinal axis that is aligned with the inlet and outlet ports of the valve housing. In an embodiment, the cannula sleeve is in accordance with the cannula housing associated with the valve housing. The cannula housing is detachably connected to the valve housing.

The generally spherical valve member has an axial bore seated in and extending therethrough. The valve member is mounted for the movement between the open position and the closed position. In the open position, the axial bore of the valve member is axially aligned with the long passage of the cannula sleeve and the inlet and outlet ports of the valve housing. In the closed position, the axial bore of the valve member extends perpendicularly to the long passage of the cannula sleeve and the inlet and outlet ports of the valve housing. The valve member is mounted for axial rotation in the valve inner chamber about an axis extending perpendicular to the inlet and outlet ports of the axially aligned valve housing.

The valve member includes a convex sealing surface that is aligned with the inlet port of the valve housing when the valve member is in the closed position. In an alternative embodiment requiring a pressure tight seal, the sealing face of the valve member includes an annular recess with an O-ring.

In a preferred embodiment, the mechanism for moving the valve member includes a cam face formed on an outer surface of the valve member and a cam pin mounted for movement with respect to the cam face of the valve member. Preferably, the cam pin extends radially inward from the drive ring supported by the valve housing and mounted for rotation about the longitudinal axis of the cannula sleeve. Rotation of the drive ring causes a corresponding rotation of the valve member in the valve seat of the valve housing.

In an embodiment of the surgical access device, the cam surface formed on the outer surface of the valve member is formed by a pair of cam lobes that are angled to each other with respect to the axis of rotation of the valve member.

In an alternative embodiment, a mechanism actuated with respect to the valve member and the valve housing to move the valve member between an open position and a closed position includes at least one arched recess formed in an outer surface of the valve member and the cam recess. It includes a cam pin formed on the inner surface of the housing for engaging.

Preferably, the surgical access device further comprises a membrane seal positioned proximate the valve seat, the membrane seal having an opening axially aligned with the long passageway of the cannula sleeve. The opening is dimensioned to receive the passage of the surgical instrument.

Those skilled in the art will readily appreciate that components of the disclosed valve assembly, ie portions thereof, may be made of any rigid, semi-rigid, rigid or semi-rigid material, such as plastic, rubber, or composite. Furthermore, in medical cases the valve assembly is made of titanium or similar biocompatible material.

In addition, the generally spherical valve member is formed to be interfitted with the valve seat to provide a tighter seal. By forming the valve member or the valve seat slightly out of round, a tighter seal is made and greater force is required for valve opening.

The telescoping nozzle or sleeve is disposed in the axial bore of the valve member and when the valve is moved to the open position, the nozzle or sleeve extends out of the valve inlet. This feature is useful in many cases, for example in beverages or gasoline containers.

Moreover, the valve assembly of the present invention is connected to a stepper motor and operated remotely.

1 is a perspective view of a valve assembly constructed in accordance with a preferred embodiment of the present invention;

2 is an exploded perspective view from above of the valve assembly of FIG.

3 is an exploded perspective view from the bottom of the valve assembly of FIG. 1 in a disassembled state;

4 is an exploded perspective view of an alternative embodiment of the valve assembly of the present invention with parts disassembled, the valve including a brittle ring;

5 is an exploded perspective view of another embodiment of the valve assembly of the present invention with parts disassembled, wherein the valve comprises a sealing disc disposed within the inner chamber of the housing;

6 is a perspective view of a valve assembly constructed in accordance with another embodiment of the present invention wherein the valve assembly is used in conjunction with a beverage container and in combination with a cap;

7 is a perspective view of a valve assembly constructed in accordance with another embodiment of the present invention, with the part disassembled, where the product is stored in a bore formed in the valve member;

8 is a perspective view of a valve assembly constructed in accordance with another embodiment of the present invention, wherein the valve assembly is mounted to one end of the tube in fluid communication with the container;

9 is a perspective view of a valve assembly constructed in accordance with another embodiment of the present invention, wherein the valve assembly is mounted to the vessel and the straw assembly is located within the open valve;

10 is a perspective view of the valve assembly of the present invention, wherein the valve is located between two vessels;

11 is a perspective view of a valve assembly of the present invention used as a colostomy bag,

12 is a perspective view of the valve assembly of FIG. 11 in a disassembled state;

13 is an exploded perspective view of an alternative embodiment of the valve assembly of the present invention with the component disassembled, the valve member including a plurality of flow passages extending through the valve perpendicular to the central bore;

14 is a perspective view illustrating alternative use of the valve assembly of the present invention in which the valve is used in an automotive fuel tank;

15 is a perspective view of a surgical access device constructed in accordance with a preferred embodiment of the present invention;

16 is an exploded perspective view of the surgical access device of FIG. 15 in a state where parts are disassembled;

FIG. 17A shows the valve housing of the valve housing forming part of the surgical access device of FIG. 15 with the valve member shown in the open position with the axial bore of the valve member aligned with the axially aligned inlet and outlet ports of the valve. Partial cross section perspective view,

FIG. 17B is a partial cross-sectional perspective view of the valve housing of the present invention wherein the valve member is moved from the open position of FIG. 17A to the closed position of FIG. 17C;

17C is a partial cross-sectional perspective view of the valve housing of the present invention with the valve member disposed in the closed position such that the axial bore of the valve member is perpendicular to the axially aligned inlet and outlet ports of the valve housing;

18 is a perspective view of another embodiment of a surgical access device of the present invention, including a removable valve housing, and

19 is a perspective view of the surgical access device of FIG. 18 with the valve housing disassembled from the cannula.

In the drawings, like elements or features of the present invention are given the same reference numerals, and in Fig. 1 the valve assembly according to the present invention is designated as reference numeral 100. The valve assembly 100 is used in many cases, such as medicine, consumer beverages, pharmaceutical containers, automobiles, household appliances, and ships. The valve 100 includes, in particular, a valve housing 10 having an upper body portion 20 and a lower body portion 30 and a generally spherical valve member 50. The upper and lower body portions 20/30 of the housing 10 form an inner chamber 16 for receiving the valve member 50 and a central axis X of the valve. The housing 10 is also axially aligned with the inlet and outlet ports 12, 14 respectively formed in the upper and lower body portions 20, 30, respectively.

The generally spherical valve member 50 has an axial bore 52 which seats in and extends through the inner chamber 16 of the valve housing. The valve member 50 is mounted for movement in the inner chamber 16 of the housing 10 between an open position and a closed position. 3A shows the valve assembly 100 in an open position, wherein the axial bore 52 of the valve member 50 is axial with the inlet port 12 and the outlet port 14 of the valve housing 10. Sorted by. In this way, FIG. 3C shows the valve assembly 100 in the closed position, wherein the axial bore 52 of the valve member 50 is an inlet and outlet port 12/16 of the valve housing 10. Not aligned with). 3B is a detailed view of the valve assembly in an intermediate position. 3A-3C show the valve assembly 100 mounted to the neck of the container 62.

Continuing with reference to FIGS. 3A-3C, the valve member 100 is rotated when the upper body portion 20 of the housing rotates about the central axis X between about 57 degrees and about 77 degrees with respect to the lower body portion 30. Exercise between the open and closed positions. The valve member 100 is an axis in the inner chamber with respect to an axis Y (see FIG. 3B) extending perpendicular to the central axis X formed by the upper and lower body portions 20/30 of the valve housing 10. It is mounted for directional rotation.

When the valve is in the closed position, the valve member 50 includes an annular valve seat 18 formed in the housing 10 and a sealing face 54 for sealing engagement. When pressure is applied to the fluid or air metered by the valve assembly, the sealing surface 54 of the valve member 50 includes an annular recess 56 (see FIG. 2) with an O-ring (not shown). .

The radially opposite pivot pin 58 (only one pin is shown in FIG. 2) is accommodated in the radially opposite recesses 32a, 32 formed in the lower body portion 30 of the housing 10. It extends radially outward from the face of the valve member 50 to facilitate axial rotation of the valve member 50.

The camming mechanism operates in conjunction with the valve housing 10 and the valve member 50 to move the valve member 50 between the open position of FIG. 3A and the closed position of FIG. 3C. The camming mechanism includes cam lobes 60a and 60b formed on the outer surface of the valve member 50 and cam pins extending radially inward from the inner surface of the upper body portion of the housing 10 to cooperate with the cam lobes. . As will be described in more detail below, the valve assembly may be installed with a drive ring coupled to the upper body portion of the housing. In this embodiment, the cam pin is associated with the drive ring so that the drive ring actuates the valve member.

Referring to FIG. 3B, the cam lobes 60a and 60b are angled to each other with respect to the rotation axis Y of the valve member 50. Each cam lobe 60a, 60b has a leading edge 61a, 61b that interacts with the cam pin 32. This interaction facilitates movement of the valve member 50 as the upper body portion 20 rotates about the longitudinal axis X of the valve assembly 100. When the valve member 50 moves between the open and closed positions, it rotates about the pivot axis Y extending through the pivot pin 58 of the valve member 50, as shown in FIG. 3B.

Those skilled in the art will readily appreciate that instead of the cam lobes 60a and 60b, a single bow-shaped recess or a pair of recesses are formed on the outer surface of the valve member 50. In this embodiment, the cam extends into the caming recess and the two body portions 20/30 of the housing 10 actuate the valve member between the open and closed positions upon axial rotation relative to each other. The length of the pin 22 is selected.

Referring again to FIGS. 2 and 3, the lower body portion 30 of the valve assembly 100 has arm threaded series 34 formed therein, such as containers (eg, bottles, containers, etc.), tubes, etc. Combine with the corresponding numeric series involved. The rib face 36 is provided outside of the lower body portion 30 of the housing 10 to facilitate rotational engagement of the threaded portion.

Hydraulic tests are performed on the valve assembly similar to those described above. The entire valve is made from a rigid thermoplastic material and does not include an O-ring seal. 67 degrees of rotation are required for the valve to move between the open and closed positions, resulting in a camber lobe. The diameter of the axial bore of the valve is approximately 3/4 ". 6 feet of water is applied to the valve through a 3/8" tube fastened to the valve outlet. No leaking of the valve is observed, and thus it can be seen that this embodiment of the valve assembly facilitates sealing of the fluid at a pressure of 3 psi (min).

4, another embodiment of the valve assembly of the present invention, indicated by member number 200, is shown. The valve 200 is similar in structure and operation to the valve assembly 100. However, unlike valve assembly 100, valve assembly 200 includes a brittle ring 270 that engages the housing of valve assembly 200 (ie, upper and lower body portions 220, 230). . This brittle ring 270 is added to the valve assembly 200 to visually indicate whether the valve is open beforehand. The brittle ring 270 is molded around the upper and lower body portions 220, 230 of the housing such that the ring 270 is broken when the body portions are rotated relative to each other. For example, this tamper proof feature is useful when the valve is used in consumer beverages.

5, another embodiment of the valve assembly of the present invention, indicated by member number 300, is shown. The valve 300 is similar in structure and operation to the valve assembly 100. However, unlike valve 100, valve 300 includes a frangible sealing disc 370 located in an inner chamber 316 formed in part by a lower body portion of the housing. The frangible sealing disc 370 not only provides an additional seal for the valve assembly 300 but can also act as a tamper proof feature. In this embodiment, the valve member 350 has a shaped protrusion 364 formed on its outer surface. When the valve member 350 is rotated from the open position to the closed position, the protrusion 364 punctures the sealing disc 370 so that fluid or air passes through the valve member 350 when the valve member returns to the closed position. Let it flow

Referring to Figures 6 and 7, another embodiment of the valve assembly of the present invention, indicated by member number 400, is shown. The valve assembly 400 is similar in structure and operation to the valve assembly 100. As shown in these figures, the valve assembly 400 is threadedly coupled with the neck 462 of the container 465. Cap 488 is coupled with top 420 of valve assembly 400. Like the valve assembly previously described, the valve member 450 may have an axial bore 452 formed in the valve member that allows fluid or air to flow through the valve assembly 400 when the valve member 450 is in the open position. Equipped. Moreover, axial bore 452 is used to receive and store articles of manufacture 453 or, for example, prizes, tickets, vitamin nutritional supplies, or medications. In this embodiment, it is advantageous to insert a sealing disc into a valve assembly similar to that shown in FIG. 5 to prevent the article of manufacture from falling into the container during storage. Optionally, the removable seal is placed on the mouth of container 462.

8 and 9, another embodiment of the valve 400 is shown. In FIG. 8, a valve 400 is mounted at the end of the tube assembly 472. Tube assembly 472 includes two end connectors 474a and 474b and an elongated tube 476. End connector 474a is threadedly coupled to the neck of container 465 and includes a central opening that allows tube 476 to move in and out of container 465 telescopically. The valve assembly 400 is engaged with the end connector 474b so that when the valve is in the open position, fluid flows out of the valve 400 through the tube assembly 472 from the container 465.

9 shows the valve assembly 400 mounted to the neck 462 of the container 465. The valve assembly 400 is shown with a straw assembly 572 in the open position and inserted into the axial bore 552. Straw assembly 572 includes a straw 576 and a plug member 574. The plug member 574 has a cylindrical O-ring 575 and is applied to the sealing coupling with the inlet port of the valve 400.

10, another embodiment of a valve assembly of the present invention, indicated by member number 500, is shown. As shown here, valve assembly 500 is being used to meter the flow between two containers 565a and 565b. The flow path between the containers includes upper and lower conduit assemblies 572a and 572b and valve assembly 500. The conduit assembly is sealingly coupled between the containers 565a and 565b and the valve assembly 500.

The valve assembly 500 is similar in structure and operation to the valve assembly 100. However, unlike valve assembly 100, valve assembly 500 has actuator arms 528a through 528d that facilitate relative rotation of upper body 520 of valve assembly 500 with respect to lower body portion 530. It includes to move the valve member between the open position and the closed position. O-ring 525 seals the connections of the components and prevents the flow path from leaking.

11 and 12, it is shown that the valve assembly 600 is used in conjunction with the colostomy bag assembly 665. Colostomy bag assembly 665 includes a bag 667, a proximity ring 669, and a distal ring 671. Proximity ring 669 has an outer flange coupled to seal with bag 667. Two retaining pins 675a and 675b are formed in the inner diameter portion of the proximity ring 669. These pins 675a and 675b are inserted into corresponding mating recesses 629a and 629b formed in the valve assembly 600 and fasten the valve assembly 600 to the proximity ring 669. Similarly, distal ring 671 fastened to the patient's body surface includes retaining pins 673a and 673b inserted into corresponding mating recesses 631a (not shown) 631b formed in valve assembly 600. do. The valve assembly 600 is installed with an actuator arm 628 that allows the patient to move the valve between a predetermined open position and a closed position.

Turning to FIG. 13, there is shown a valve assembly according to another embodiment of the present invention, indicated by member number 700. Again, the valve assembly 700 is similar to the structure and operation of the valve previously described, but unlike the previous valve, the valve assembly 700 has a plurality of flow passages 753 formed in the valve member 750. .

Since the flow passage 753 extends along an axis perpendicular to the axial bore 752, the fluid traverses the valve through the plurality of flow passages 753 when the valve member is in the closed position. Therefore, when the valve assembly 700 is in the open position, a single jet of water is discharged from the showerhead assembly, and when the valve assembly is in the closed position, water flows out of the flow passage. O-ring seals 755a, 755b, 757a, 757b are provided at both ends of axial bore 752 and flow passage 753 to suitably seal when in the open and closed positions, respectively.

The showerhead shown in FIG. 13 is also installed with a control ring 790 that seals to engage the top 720 of the valve assembly 700 using an O-ring seal 792. The control ring 790 has drive pins 722 formed on its inner surface. Drive pin 722 protrudes through slot 721 formed in upper portion 720 of valve assembly 700 and engages with cam lobes 760a and 760b formed in valve member 750. Thus, rotation of the control ring 790 relative to the lower body portion 730 of the valve assembly 700 moves the valve member between an open position and a closed position.

Those skilled in the art will appreciate that the showerhead assembly described above is easy to use for metering air supplies rather than fluids.

14 shows a valve assembly (indicated by member number 800) constructed in accordance with the present invention located in the inlet 862 of the fuel tank. The use of valve assembly 800 in this case causes removal of the removable gas cap and only rotates drive ring 890 approximately 67 degrees to open the valve. An axial bore 852 of the valve member is used to receive the standard fuel pump nozzle 855.

15 and 16, there is shown a surgical instrument constructed in accordance with a preferred embodiment of the present invention, indicated by member number 900.

Minimally invasive surgery procedures are commonly performed by passing a surgical instrument through a narrow tube or cannula inserted through a small incision made in the patient's body using a trocar or obturator. For example, laparoscopic surgery methods are performed in the cavity of the abdomen through small incisions made in the abdominal wall. During laparoscopic surgery, the blown gas is directed into the abdominal cavity to raise the peritoneum away from the abdominal wall and the organs necessary for life support in the abdominal cavity, providing a suitable area for operation.

During laparoscopic surgery, it is necessary to maintain the atmospheric integrity of the abdominal cavity so that the gas blown into the operating room is not released. Thus, the seal assembly is provided to the cannula so that when the instrument is in the cannula and when the instrument is retracted from the cannula, the tubular passages extending therefrom prevent the escape of tightly sealed and blown gas. For example, it can be seen that an opening or slit that is forced open when the instrument is passed can be used with an elastomeric seal member. The seal member prevents the escape of blown gas when the instrument is in or out of the cannula. Use of such seals is known to be disadvantageous. In particular, the opening or slit is torn when the instrument is pressurized to pass therethrough, effectively creating a seal so that the blown gas does not escape from the cannula sleeve.

Thus, as described below, the surgical instrument 900 is installed with the valve assembly of the present invention to prevent the gas blown through the cannula when the surgical instrument is absent. Surgical instrument 900 is used as an access device, and more particularly, a device that facilitates the insertion of surgical instruments into a human body during minimally invasive surgical methods. Surgical instruments inserted into the patient's body through the surgical instrument 900 of the present invention, for example, clip appliers (grasppers), graspers (dissectors), retractors (retractors), staplers such as staplers, laser fibers, photographic devices, endoscopes, laparoscopics, tubes, and the like.

Surgical instrument or access device 900 includes a proximity valve housing 910 having an inlet port 912 for receiving a surgical instrument. The valve housing 910 includes an upper body portion 920 and a lower body portion 930, the body portion having a generally hemispherical inner chamber 916 for receiving a generally spherical valve member 950 among others. To form. The inner chamber 916 communicates with the outlet port 914 of the valve housing 910 axially aligned with the inlet port 912. The valve housing 910 is operated in conjunction with the lower cannula housing 980. Preferably, valve housing 910 and cannula housing 980 are formed of polycarbonate ester.

The long cannula sleeve 982 extends away from the cannula housing 980. Cannula sleeve 982 has an elongated passageway 984 extending therethrough and defines a longitudinal axis indicated by reference numeral X. The passage 984 is axially aligned with the inlet port 912 and the outlet port 914 of the valve housing 910. Cannula sleeve 982 is formed of another suitable rigid material, such as stainless steel or polycarbonate ester material. Inlet conduit 986 mates with cannula housing 980 to provide a passage of gas blown into the patient's body cavity through cannula sleeve 982. Inlet conduit 986 includes a cock stop valve not shown.

A valve member 950, preferably formed of polycarbonate ester material, is mounted for axial rotation within the inner chamber 916 about an axis extending perpendicular to the longitudinal axis of the cannula sleeve 982. The radially opposite pivot pin 958 (only one pin is shown in FIG. 16) is radially outwardly from the surface of the valve member 950 to accommodate in the radially opposed recesses 932a and 932b. Extends to facilitate axial rotation of the valve member 950. An axial bore 952 extends through the valve member 950 and a convex sealing surface 954 is provided to the valve member 950 spaced apart from the axial bore 952.

The valve member 950 is mounted for the movement between the open position and the closed position. In the open position of the valve member 950 shown in FIG. 17A, the axial bore 952 is the long passage 984 of the cannula sleeve 982 and the inlet and outlet ports 912, 914 of the valve housing 910. And axially aligned. In the closed position of the valve member 950 shown in FIG. 17C, the axial bore 952 extends perpendicular to the long passage 984 of the cannula sleeve 982 and the sealing face 954 is the valve housing 910. Axially aligned with the inlet port 912 of the.

As with the previously described embodiment, the camming mechanism is operated in conjunction with the valve housing 910 and the valve member 950 to move the valve member 950 between the open position of FIG. 17A and the closed position of FIG. 17C. The camming mechanism extends radially inward from the inner surface of the upper housing portion / drive ring 920 to interact with the cam cam lobes 960a and 960b formed on the outer surface of the valve member 950 and the cam lobe. Cam pin 922. As above, the leading edges of the cam ropes 960a and 960b interact with the cam pins 922. This interaction facilitates movement of the valve member 950 when the drive ring 920 is rotated about the longitudinal axis X of the cannula sleeve 982. When the valve member 950 is moved between an open position and a closed position, as shown in FIG. 3B, it rotates about a pivot axis X extending through the pivot pin 958 of the valve member 950.

The drive ring 920 is rotatably mounted at the proximal end of the valve housing 910 and is opposed in the radial direction to cooperate with the annular guide surface 938 formed outside the lower body portion 930 of the valve housing 910. And radially inwardly extending guide ribs 924. The stop surface 940 limits the rotational movement of the upper body / drive ring 920 about the longitudinal axis of the cannula sleeve 982.

Fluted adjustment knob 990 engages and cooperates with drive ring 920. The adjustment knob 990 includes an inlet port 992 that is aligned with the axial passageway 984 of the cannula sleeve 982 and partially forms the inlet port 912 of the valve housing 910. The engagement of the drive ring 920 and the adjustment knob 990 is a combination of the engagement tabs 926 extending radially outwardly opposite the pair of radially in the drive ring 920 (only one tab is shown in FIG. 16). A pair of corresponding radially opposed inner recesses 994a and 994b, which are achieved through the coupling, are formed in the inner cavity of the adjustment knob 990. Optional rescue means are provided to facilitate adjustment of the drive ring 920.

The flange 942 protrudes radially outward from the bottom 930 of the valve housing 910 to provide a surgeon with the surgeon when the adjustment knob 990 is rotated. The valve housing 910 further includes a membrane seal 996 positioned in proximity to the inner chamber 916 and housed within the annular recess. The membrane seal 996 has a central slit opening 998, axially aligned with the outlet port 912 of the valve housing 910 and the passage 984 of the cannula sleeve 982. The central opening 998 is formed and dimensioned to receive the passageway of the surgical instrument. Membrane seal 996 helps prevent the escape of gas blown from access device 900 when the instrument is present and valve member 950 is in the open position.

18 and 19 are perspective views of another embodiment of a surgical access device in accordance with the present invention, indicated by reference numeral 1000 and includes a removable valve housing 1010. More specifically, as best shown in FIG. 5, the valve housing 1010 is detachably connected to the cannula housing 1080. This allows the surgeon to use the cannula housing 1080 during the course of the method where no valve housing is needed. The surgeon also facilitates the removal of the specimen from the operating room. As shown, the removable relationship of valve housing 1010 and cannula housing 1080 is facilitated by threaded connections therebetween. It will be appreciated that other coupling devices are contemplated and within the scope of the present invention.

While many changes and modifications can be made to the invention, those skilled in the art will recognize that such changes and modifications are made within the scope of the appended claims.

The valve assembly of the present invention may be used in optional cases not described above. For example, the valve can be installed in a sink drain so that no plug is required. In addition, the valve may be replaced with a plug or plug used to seal the penetrations in the hull of the boat. Moreover, the valve can be replaced with a cap in hand cream, toothpaste and the like.

Claims (49)

a) having an upper body portion and a lower body portion forming an inner chamber for receiving a valve member and a central axis of the valve, each having an inlet and an outlet port formed in the upper and lower body portions and axially aligned; Valve housings; b) having an bore seated in the inner chamber of the valve housing and extending in the axial direction, the open position in which the axial bore of the valve member is axially aligned with the inlet and outlet ports of the valve housing, and the axial bore of the valve member. A generally spherical valve member mounted to move between a closed position that is not aligned with the inlet and outlet ports of the valve housing; And c) an apparatus actuated with respect to the valve housing and the valve member to move the valve member between an open position and a closed position when the upper body portion of the housing is rotated about a central axis relative to the lower body portion; Valve assembly comprising a. 2. The valve assembly of claim 1, wherein the device actuated with respect to the valve housing and the valve member to move the valve member between an open position and a closed position includes a camming mechanism. 3. The valve assembly of claim 2, wherein the camming mechanism comprises a cam face formed on the outer surface of the valve member and a cam pin formed on the inner surface of the upper body portion of the housing. 4. The valve assembly according to claim 3, wherein the cam surface formed on the outer surface of the valve member is formed by a pair of arched cam lobes formed at an angle to each other. 3. The valve assembly of claim 2, wherein the camming mechanism comprises at least one arcuate recess formed in the outer surface of the valve member and a cam pin formed in the inner surface of the upper body portion of the housing for engaging with the cam recess. . 2. The valve assembly of claim 1, wherein the valve member is mounted for axial rotation in the inner chamber about an axis extending perpendicular to the central axis formed by the upper and lower body portions of the valve housing. 2. The valve assembly of claim 1, wherein the housing includes a device associated with the inlet port for engaging the valve with a vessel or tube. 2. The valve assembly of claim 1, wherein the housing includes a device associated with the outlet port for engaging the valve with a vessel or tube. 2. The valve assembly of claim 1, wherein the valve member includes a sealing surface used to seal engagement with a valve seat formed in the housing when the valve is in the closed position. 10. The valve assembly of claim 9, wherein the sealing face of the valve member includes an annular recess with an O-ring. 10. The valve assembly of claim 9, wherein the valve member has an outer diameter that is slightly larger than the inner diameter of the valve to intermediate fit when the valve assembly is in the closed position. The valve assembly of claim 1 further comprising a brittle ring engaged with the exterior of the valve housing to visually indicate whether the valve is open. The apparatus of claim 1, further comprising a fragile sealing disc inserted into the interior chamber of the valve to visually indicate whether the valve is open and to include a device for the valve member to puncture the disc when the valve is opened. Valve assembly, characterized in that. The valve assembly of claim 1, wherein the axial bore of the valve member is configured and used to receive and store the article of manufacture when the valve is in the closed position. The valve assembly of claim 1, further comprising a device associated with the valve housing to facilitate axial rotation of the lower body portion of the housing relative to the upper body portion. 2. The flow path of claim 1 wherein the plurality of flow passages are formed in a valve member extending along an axis perpendicular to the axial bore such that fluid or air traverses the valve through the plurality of flow passages when the valve is in the closed position. Characterized in that the valve assembly. The valve assembly of claim 1, wherein the valve member moves between an open position and a closed position when the upper body portion of the housing is rotated about a central axis between about 57 degrees and about 77 degrees relative to the lower body portion. The valve assembly of claim 1, further comprising a telescoping nozzle or sleeve disposed in the axial bore of the valve member. a) a valve housing having a valve seat formed to receive the valve member and having axially aligned inlet and outlet ports; b) an elongated cannula sleeve operated in connection with the valve housing and having an elongated passageway defining a longitudinal axis aligned with the inlet and outlet ports of the valve housing; c) a bore seated in the valve housing and extending in the axial direction, the open position in which the axial bore of the valve member is axially aligned with the inlet and outlet ports of the valve housing and the long passage of the cannula sleeve, A generally spherical valve member mounted to move between the inlet and outlet ports of the valve housing and the closed position extending perpendicularly to the long passageway of the cannula sleeve; And d) a surgical access device comprising a device actuated with respect to the valve housing and the valve member to move the valve member between an open position and a closed position. 20. The surgical access device of claim 19, wherein the valve member is mounted for axial rotation within the valve seat about an axis extending perpendicular to the axially aligned inlet and outlet ports of the valve housing. 20. The surgical access device of claim 19, wherein the device for moving the valve member includes a cam face formed on an outer surface of the valve member and a cam pin mounted to move relative to the cam face of the valve member. 22. The cam pin of claim 21 wherein the cam pin extends radially inward from a drive ring supported on the valve housing and mounted for rotation about a longitudinal axis of the cannula sleeve, the rotation of the drive ring being within the valve seat of the valve housing. And a corresponding rotation of the member. 23. A surgical access device according to claim 22, wherein the cam surface formed on the outer surface of the valve member is formed by a pair of cam lobes that are angled to each other with respect to the axis of rotation of the valve member. 20. The device of claim 19, wherein the access device further comprises a membrane seal positioned proximate the valve seat, the membrane seal having an opening axially aligned with the elongate passage of the cannula sleeve dimensioned to receive a passage of the surgical instrument. Surgical access device, characterized in that. 20. The surgical access device of claim 19, wherein the cannula sleeve is in accordance with a cannula housing associated with the valve housing. 27. The surgical access device of claim 25, wherein the cannula housing is detachably connected to the valve housing. 20. The surgical access device of claim 19, wherein the valve member includes a convex sealing face that is aligned with the inlet port of the valve housing when the valve member is in the closed position. 20. The apparatus of claim 19, wherein the device actuated with respect to the valve housing and the valve member to move the valve member between an open position and a closed position is to engage the cam recess with at least one arched recess formed in an outer surface of the valve member. Surgical access device comprising a cam pin formed on the inner surface of the housing. 20. The surgical access device of claim 19, wherein the valve member includes a sealing face used for sealing engagement with a valve seat formed in the housing when the valve is in the closed position. 30. The surgical access device of claim 29, wherein the sealing face of the valve member includes an annular recess with an O-ring. a) a valve housing forming a valve seat for receiving the valve member, the valve housing having an axially aligned inlet and outlet port; b) having a bore seated in the valve housing and extending in the axial direction, the open position in which the axial bore of the valve member is axially aligned with the inlet and outlet ports of the valve housing, and the axial bore of the valve member A generally spherical valve member mounted to move between a closed position that is not aligned with an inlet and an outlet port of the; And c) a camming device in which the valve housing and the valve member are operated in association to move the valve member between an open position and a closed position; Valve assembly comprising a. 32. The valve assembly of claim 31, wherein the valve member is mounted for axial rotation within the valve seat about an axis extending perpendicular to the axially aligned inlet and outlet ports of the valve housing. 33. The valve assembly of claim 32, wherein the camming device for moving the valve member includes a cam face formed on an outer surface of the valve member and a cam pin mounted to move relative to the cam face of the valve member. 34. The cam pin of claim 33 wherein the cam pin extends radially inward from a drive ring mounted for axial rotation with respect to the inlet and outlet ports axially aligned with the valve housing, the rotation of the drive ring being driven by the valve housing. A valve assembly characterized by causing a corresponding rotation of the valve member in the valve seat. 34. The valve assembly of claim 33, wherein the cam surface formed on the outer surface of the valve member is formed by a pair of cam lobes that are angled to each other with respect to the axis of rotation of the valve member. 32. The valve assembly of claim 31, wherein the valve housing for moving the valve member between the open position and the closed position and the device actuated with the valve member include a camming mechanism. 32. The valve assembly of claim 31, wherein the camming device comprises at least one arcuate recess formed in the outer surface of the valve member and a cam pin formed in the inner surface of the housing for engaging with the cam recess. 32. The valve assembly of claim 31, wherein the housing includes a device associated with the inlet port for engaging the valve with a vessel or tube. 32. The valve assembly of claim 31, wherein the housing includes a device associated with the outlet port for engaging the valve with a vessel or tube. 32. The valve assembly of claim 31, wherein the valve member includes a sealing face used for sealing engagement with a valve seat formed in the housing when the valve is in the closed position. 38. The valve assembly of claim 37, wherein the sealing face of the valve member includes an annular recess with an O-ring. 32. The valve assembly of claim 31, further comprising a brittle ring engaged with the exterior of the valve housing to visually indicate whether the valve is open. 32. The device of claim 31, further comprising a frangible sealing disc inserted into the interior chamber of the valve to visually indicate whether the valve is open and to include a device in which the valve member drills the disc when the valve is opened. A valve assembly, characterized in that. 32. The valve assembly of claim 31, wherein the axial bore of the valve member is formed and used to receive and store the article of manufacture when the valve is in the closed position. 32. The valve assembly of claim 31, further comprising a device associated with the valve housing to facilitate axial rotation of the lower body portion of the housing relative to the upper body portion. 32. The flow path of claim 31, wherein the plurality of flow passages are formed in the valve member extending along an axis perpendicular to the axial bore such that fluid or air traverses the valve through the plurality of flow passages when the valve is in the closed position. Characterized in that the valve assembly. 32. The valve of claim 31 wherein the valve member moves between an open position and a closed position when the upper body portion of the housing is rotated about a central axis between about 57 degrees and about 77 degrees relative to the lower body portion of the housing. Assembly. 32. The valve assembly of claim 31, wherein the valve member has an outer diameter that is greater than the inner diameter of the valve seat such that the valve member is interfitted when the valve assembly is in the closed position. 32. The valve assembly of claim 31, further comprising a telescoping nozzle or sleeve disposed in the axial bore of the valve member.

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