DE112004000971T5 - Rotating valve arrangement - Google Patents

Abstract

Valve arrangement with:
a) a valve housing having an upper housing portion and a lower housing portion, wherein the lower and the upper housing portion form an inner chamber for receiving a valve member and a central axis for the valve, wherein the housing is provided with axially aligned inlet and outlet ports formed in the upper and lower housing sections;
b) a substantially spherical valve member which is inserted within the inner chamber of the valve housing and is provided with an axial bore extending therethrough, the valve member for movement between an open position in which the axial bore of the valve member axially aligned with the inlet and outlet openings of the valve housing, and a closed position in which the axial bore of the valve member is out of alignment with the inlet and outlet openings of the valve housing is held; and
c) a means operatively associated with the valve body and the valve member ...

Description

cross-references related applications

The This application claims the priority of New Zealand provisional patent application with the serial no. 526158, the am May 29, 2003, entitled "Rotating Sealing mechanism "wears, and the US provisional patent application with the serial no. 60/616569, filed on October 31, 2003 and titled "Valve Arrangement for a surgical Access device " the disclosures of both applications being incorporated herein by reference are included in their full extent.

Background of the invention

1st area the invention

The The present invention relates generally to the field of Sealing mechanisms and more in detail to a compact valve assembly for use in a variety of applications requiring a valve part includes, this is easily done by a cam control or cam mechanism the open and the closed position can be actuated.

2. Background of the stand of the technique

ball valves are well known to a person skilled in the art and are widely used in a variety of applications and industries used. Typically, in applications where one Controlling the flow of a Fluids is concerned, a valve with a hole having a ball selected. at one with an opening having a ball provided valve is a substantially spherical Valve part that with a flow opening or a flow passage is provided, which is formed therethrough, for a rotating Movement positioned within a valve body. The valve actuation or Valve function can be split into two separate stages. First moved the ball between an open and a closed position, by turning 90 °, so that the opening or the flow passage away from an orientation in which it coaxial with the flow direction is, i. when the valve is open is moved to a position in which the opening of the ball is normal or perpendicular to the flow direction is. Second, the valve seals in the closed position off to a flow through the opening to prevent the ball valve. Therefore, the on / off control becomes the flow achieved by the valve characterized in that the ball within the valve housing to Turned 90 ° becomes.

at From the prior art known ball valves, the rotation the sphere, i. the valve member, typically by an actuating mechanism generated, which protrudes from the valve housing and is configured to be rotating about an axis perpendicular to that of the flow through the valve is. Such a valve is disclosed in US Pat. No. 6,695,285 by Hotton et al. described.

With a ball valve of this type are associated with several disadvantages. For example, the extension of an actuating means from the side wall the valve problematic and not useful for applications where spatial restrictions and physical access to the operation is an important issue are.

Farther must the activity these valves are rotated or rotated by at least 90 °, so that the valve between the completely open and the completely closed Position moves.

Therefore would it be advantageous when providing a valve or sealing mechanism could be the compact or reliable is and between the open and closed positions actuated and operated with a minimum amount of rotary motion can.

Summary the invention

The The present invention is directed to a valve or seal assembly directed, for that is intended to be used in a variety of applications, such as in the medical beverage sector and other Consumers, in pharmaceutical containers, for automotive applications. and household and shipbuilding. The described valve has, inter alia, a valve housing, which with a upper housing section and with a lower housing section and provided with a substantially spherical valve member is. The upper and lower housing sections of the housing put an inner chamber for receiving the valve part and a central Axis for the valve tight. The housing is also with axially aligned inlet and outlet ports provided, which are formed in the upper and lower housing portion.

The substantially spherical valve member is inserted within the inner chamber of the valve housing and is provided with an axial bore extending therethrough. The valve member is for movement between an open position in which the axial bore of the valve member is axially aligned with the inlet and outlet openings of the valve housing, and a closed position in which the axial bore of the valve member au Be out of alignment with the inlet and outlet openings of the valve housing is held. Preferably, the valve member moves between the open position and the closed position when the upper housing portion of the housing is rotated about the central axis between about 57 ° and about 77 ° with respect to the lower housing portion. It is presently contemplated that the valve member be held for axial rotation within the inner chamber about an axis extending perpendicular to the central axis defined by the upper and lower housing portions of the valve housing.

In Preferably, the valve member is provided with a sealing surface, the for a sealing engagement with a valve seat is adjusted, in the case is formed when the valve in the closed position located. In applications where a pressure on the fluid or the air is applied, the metered through the valve is, is the sealing surface the valve part adapted so that she an annular Well, which is provided with an O-ring disposed therein.

The Valve assembly further includes a mechanism that the valve body and associated with the valve member is to the valve member between the open position and the closed Move position when the upper housing section of the housing to the central axis is rotated with respect to the lower housing portion. In a preferred embodiment the mechanism for actuating the valve assembly of a cam or cam control mechanism.

In an embodiment According to the present invention, the cam control mechanism cam- or curve control surfaces on that on the outer surface of the Valve part out forms, and a cam pin on the inner surface of the upper housing section formed of the housing is. It is envisaged that the Curve control surfaces, the on the outer surface of the Valve part are formed, defined by a pair of cams are formed at angles to each other. The cams can have a curved or rectilinear shape.

In a further embodiment According to the present invention, the cam control mechanism at least a curved recess formed on the outer surface of the Valve part is formed, and a cam pin on the inner surface of the upper housing section of the housing designed to cooperate with the cam recess.

In a preferred embodiment shows the case for the Valve assembly has a means associated with the inlet port to the Valve with a container or a pipeline. In addition, can the housing, if desired is to be provided with a means associated with the outlet opening is to the valve with a container or a pipeline.

at Applications where there is a need for the valve has an anti-intrusive property to the purity the substance that is inside the bore of the valve part or in the container or the pipe to which the valve is attached is to ensure the valve is further provided with a frangible ring, the with the outside of the valve housing engaged to ensure a visible indication, whether the valve has been opened is. Alternatively or in addition the valve may have a breakable sealing washer which is in the inner chamber of the valve is inserted, again around a visible one Indicate whether the valve has been opened. This sealing washer also works as a second seal for the valve until its first use.

at this embodiment is envisaged, that this Valve part has a mechanism to pierce the disc, when the valve is open becomes. For example, a sharp protrusion on the bottom of the Be formed valve part which cuts through the gasket, when the valve moves from the closed to the open position becomes.

In an alternative embodiment can accommodate the axial bore of the valve part for receiving and storing a manufactured article adapted and configured, if the valve is in the closed position. For example, one could bonus or a small profit in the hole stocked and released when the valve is opened becomes. Furthermore could the valve is attached to a water bottle, and the bore of the valve could a vitamin or an additive contained in the water is dropped when the valve is opened.

It is still being considered, that the valve contains a mechanism the valve housing is assigned to the axial rotation of the upper housing portion of the housing relative to the lower housing portion to facilitate.

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

The The present disclosure is also directed to a surgical Access device, among other things, a valve body, a elongated Cannula sleeve, the in terms of effect casing is associated, a substantially spherical valve member, within an inner chamber is arranged, which is formed in the housing is, and a mechanism that effectively the valve body and the valve member is assigned to the valve member between the open Move position and the closed position includes.

The valve housing forms an inner chamber and a valve seat for receiving the Valve member. Axially aligned inlet and outlet openings are in the case formed and extending from the outside of the valve to the inner chamber.

The elongated Cannula sleeve, the in terms of effect valve housing is assigned, has an elongated Passageway that extends through it and one longitudinal axis established with the intake and outlet openings of the valve housing is aligned. In a described embodiment, the cannula sleeve goes from from a cannula housing, that the valve housing assigned. It is envisaged that the cannula housing releasably connected to the valve housing can be.

The essentially spherical Valve part is inserted inside the valve housing and has a axial bore extending therethrough. The valve part is for a movement between an open position and a closed position Position held. In the open position is the axial bore the valve member axially with the elongated Passage of the cannula sleeve and the inlet and outlet of the valve housing aligned. In the closed position, the axial extends Bore of the valve body perpendicular to the oblong Passage of the cannula sleeve and the Inlet- and outlet openings of the valve housing. It is envisaged that this Valve part for an axial rotation within the inner chamber of the valve to an axis is held perpendicular to the axially aligned ones Inlet- and outlet openings of the valve housing extends.

It becomes current envisaged, that this valve housing a convex sealing surface having, with the inlet opening of the Aligned valve housing is when the valve member is in the closed position. In alternative embodiments, where a pressure-tight seal is required, is the sealing surface the valve member with an annular Recess provided in which an O-ring is arranged.

In a preferred embodiment the mechanism for moving the valve member has cam control surfaces, the on the outer surface of the Valve part are formed, and a cam pin, for movement relative to the cam control surfaces of the valve part. Preferably, the cam pin extends in the radial direction inwards starting from a drive ring, on the valve body supported is and for rotation about the longitudinal axis the cannula sleeve is held. The rotation of the drive ring has a corresponding rotation of the Valve part within the valve seat of the valve housing for Episode.

In a described embodiment The surgical access device is the cam control surfaces which on the outer surface of the valve member are formed, formed by a pair of cams, with respect to arranged on the axis of rotation of the valve member at angles to each other are.

In an alternative embodiment has the mechanism that operatively the valve body and the valve member is assigned to the valve member between the open Position and the closed position to move, at least one curved Recess on that on the outer surface of the Valve part is formed, and a cam pin on the inner surface of the housing is formed to cooperate with the cam recess.

It is present preferably such that the surgical access device further comprising a membrane seal is provided, which is arranged proximal to the valve seat, wherein the membrane seal an opening having axially with the elongated Passage of the cannula sleeve aligned is. The opening is dimensioned so that they the passage of a surgical instrument through it allows.

For one It is readily apparent to one skilled in the art that that the Components of the valve assembly described or parts thereof any rigid, semi-rigid, hard or semi-hard one Material can be produced such as plastic, rubber, metal or a composite material. Furthermore, the valve assembly in medical applications made of titanium or a similar one be made of biocompatible material.

In addition, the substantially spherical valve member may be formed so that it is a press fitting with the valve seat to provide a denser seal in this way. Characterized in that the valve member or the valve seat is formed slightly out of round, a denser seal is generated, and it will require a larger force to open the valve.

It is also envisaged, that a telescopic Nozzle or Sleeve inside the axial bore of the valve member is arranged, in which case, when the valve is moved to the open position, the nozzle or Sleeve yourself extends out of the valve core. This feature is in one Variety of applications useful, such as in containers for drinks or Fuel.

Farther is envisaged, that the Valve assembly according to the present invention with a stepping motor can be connected and thereby operated remotely can.

Short description the drawings

In order to a professional with average knowledge on the present Area to which the present invention relates, easier understands how the surgical access device and the valve assembly to manufacture and use according to the present invention, become embodiments thereof in detail below and with reference to the drawings described in which

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

2 an exploded perspective view from above of the valve assembly according to 1 shows, wherein parts are separated for ease of illustration;

3 an exploded perspective view from above of the valve assembly according to 1 shows, wherein parts are separated for ease of illustration;

4 an exploded perspective view of an alternative embodiment of the valve assembly according to the present invention, wherein parts are separated for ease of illustration, and wherein the valve is provided with a frangible ring;

5 an exploded perspective view of an alternative embodiment of the valve assembly according to the present invention, wherein parts are separated for ease of illustration, the valve having a sealing disc which is disposed within the inner chamber of the housing;

6 Figure 3 shows a perspective view of a valve assembly constructed in accordance with an alternative embodiment of the present invention, the valve assembly engaging a beverage container and adapted to cooperate with a cap;

7 a perspective view of a valve assembly constructed according to an alternative embodiment of the present invention, wherein parts thereof are separated for ease of illustration, and wherein a premium within the bore formed in the valve member is stored.

8th a perspective view of a valve assembly constructed according to another alternative embodiment of the present invention, wherein the valve assembly is held at the end of a pipeline, which is in flow communication with a container;

9 Figure 3 shows a perspective view of a valve assembly constructed in accordance with another alternative embodiment of the present invention, the valve assembly being mounted on a container and having a straw assembly positioned within the open valve;

10 a perspective view of the valve assembly according to the present description shows, in which the valve is explained, which is positioned between two containers;

11 Figure 5 is a perspective view of the valve assembly of the present disclosure adapted for use with a colostomy bag;

12 a perspective view of the valve assembly according to 11 shows, with parts thereof are separated for ease of illustration.

13 an exploded view of an alternative embodiment of the valve assembly described herein, with parts thereof being separated for ease of illustration, and wherein the valve member has a number of flow passages extending through the valve perpendicular to the central bore;

14 a perspective view of an alternative embodiment of the valve assembly according to the present invention, wherein the valve in a fuel tank of an automobile ver is used;

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

16 an exploded perspective view of the surgical access device according to 15 shows, parts of which are separated for ease of illustration,

17a a perspective view, partially in cross section, of the valve housing, which forms part of the surgical access device according to 15 forms, wherein the valve member is shown in an open position, and wherein the axial bore of the valve member is aligned with the axially aligned inlet and outlet ports of the valve;

17b a perspective view, partially in cross-section, of the valve housing of the present invention shows, wherein the valve member in the transition from the open position to 17a to the closed position after 17c is;

17c a perspective view, partially in cross section, of the valve housing according to the present invention, wherein the valve member is angeorndet in a closed position, so that the axial bore of the valve member is arranged perpendicular to the axially aligned inlet and outlet openings of the valve housing.

18 a perspective view of another embodiment of the surgical access device according to the present invention, which is provided with a detachable valve housing; and

19 a perspective view of the surgical access device according to 18 shows, wherein the valve housing is separated from the cannula housing for the sake of simplicity of illustration.

These and further features of the valve assembly and the surgical access device according to the present invention Invention will be for a professional with average knowledge on the present The following is a detailed description of the preferred embodiment embodiments appear more clearly.

Detailed description of preferred embodiments

Referring now to the drawings, wherein like reference numerals refer to similar structural elements or features of the present invention. In 1 a valve assembly according to the present invention is shown, in whole with the reference numeral 100 is designated. The valve arrangement 100 is intended for use in a variety of applications such as medical and other consumer, pharmaceutical, automotive and household applications, and marine applications. The valve 100 has, inter alia, a valve housing 10 that with an upper housing section 20 and a lower housing portion 30 is provided, and a substantially spherical valve member 50 on. The upper and lower housing sections 20 . 30 of the housing 10 form an inner chamber 16 for receiving the valve part 50 and a central axis X for the valve. The housing 10 is also with axially aligned inlet and outlet ports or ports 12 and 14 provided in the upper and lower housing portion 20 and 30 are formed.

The essentially spherical valve part 50 is inside the inner chamber 16 the valve housing is inserted and has an axial bore 52 which extends through it. The valve part 50 for a movement within the inner chamber 16 of the housing 10 held between an open position and a closed position. 3a explains the valve assembly 100 in the open position, in which the axial bore 52 of the valve part 50 axially with the inlet opening 12 and the outlet port 14 of the valve housing 10 is aligned. Explained in a similar way 3c the valve assembly 100 in the closed position, in which the axial bore 52 of the valve part 50 out of alignment with the inlet and outlet ports 12 . 16 of the valve housing 10 located. 3b shows a detail of the valve assembly 100 in an intermediate position. It should be noted that in 3a to 3c the valve assembly 100 shown as being on the neck of a container 62 is appropriate.

While continuing on 3a to 3c Reference is made, moves the valve member 100 between the open position and the closed position, when the upper Gehäuseab section 20 the housing about the central axis X between about 57 ° and about 77 ° with respect to the lower housing portion 30 is turned. The valve part 100 is for axial rotation within the inner chamber about an axis Y, wherein 3b is referenced, which extends perpendicular to the central axis X, through the upper and lower housing portions 20 . 30 of the valve housing 10 is fixed.

The valve part 50 has a sealing surface 54 which is for sealing engagement with an annular valve seat 18 adapted in the housing 10 is formed when the valve is in the closed position. In applications where a pressure is applied to the fluid or air that is metered by the valve assembly, the sealing surface has 54 of the valve part 50 an annular recess 56 on, being on 2 reference is made, in which an O-ring, which is not shown, is arranged.

Diametrically opposed pivot pins 58 , where in 2 only one pin is shown extend radially outwardly from the surface of the valve member 50 for receiving within diametrically opposed recesses 32a and 32 in the lower housing section 30 of the housing 10 are formed to the axial rotation of the valve member 50 to facilitate.

A cam control mechanism operatively engages the valve body 10 and with the valve part 50 in connection to the valve part 50 between the open position according to 3a and the closed position according to 3c to move. The cam control mechanism has cams 60a . 60b on that on the outer surface of the valve member 50 are formed, and a cam pin 22 extending radially inwardly from the inner surface of the upper housing section 20 of the housing 10 extends to cooperate with the cams. As will be described in detail below, the valve assembly can be provided with a drive ring which is placed over the upper housing portion of the housing. In such an embodiment, the cam pin may be associated with the drive ring so that the drive ring actuates the valve member.

Referring again to 3b are the cams 60a . 60b with respect to the axis of rotation Y of the valve member 50 arranged at angles to each other. Every cam 60a . 60b has a front edge 61a . 61 on that with the cam pivot 32 interacts. This interaction allows movement of the valve member 50 when the upper housing section 20 about the longitudinal axis X of the valve assembly 100 is turned. When the valve part 50 is moved between the open and the closed position, it is rotated about the pivot axis Y, extending through the pivot pin 58 of the valve part 50 extends, as in 3b is shown.

One skilled in the art readily recognizes that instead of the cams 60a and 60b a single arcuate recess or a pair of recesses in the outer surface of the valve member 50 can be trained. In this embodiment, the length of the cam pin becomes 22 chosen so that it extends into the cam recess or cam grooves in and the valve member 50 operated between the open and the closed position, on the relative axial rotation of the two housing sections 20 . 30 of the housing 10 in relation to each other.

While again on 2 and 3 Reference is made to the lower housing section 30 the valve assembly 100 with a series of internal threads 34 provided thereon, for cooperation with corresponding external threads associated with a container such as a bottle or container, etc., piping or the like. A ribbed surface 36 is on the outside of the lower housing section 30 of the housing 10 provided to facilitate the rotational engagement of the threads.

One Pressure test with water was performed on a valve assembly that was similar like the one described above. The entire valve was out of one rigid thermoplastic produced and contained none O-ring seals. The cams were designed so that one turn required by 67 ° was to the valve between the open and the closed position to move. The axial bore of the valve was about ¾ "in diameter. Six feet of water were over to the valve a tube with 3/8 '' applied, which attached to the valve outlet was. There was no leakage from the valve, and it was it was therefore concluded that that these embodiment the valve assembly was capable of removing fluid under a pressure of to seal at least 3 psi.

Now be on 4 Referring to FIG. 1, there is illustrated an alternative embodiment for the valve assembly of the present invention, generally designated by the numeral 200 is designated. The valve 200 is similar in terms of its construction and its operation, the valve assembly 100 , However, the valve assembly is 200 , unlike the valve assembly 100 , with a breakable ring 270 provided, which is intended, with the housing of the valve assembly 200 ie the upper and lower housing sections 220 . 230 to get in touch. The breakable ring 270 is to the valve assembly 200 has been added to provide a visual indication of whether the valve has been previously opened. The breakable ring 270 is around the upper and lower housing section 220 . 230 formed of the housing, so that when the housing sections are rotated relative to each other, the ring 270 is broken. Such a tamper-proof property is useful in applications where the Ven For example, it is used together with beverages for consumers.

Below is on 5 Reference is made, in which a further embodiment of the valve assembly according to the present invention is shown, with the reference numeral 300 is designated. The valve 300 is similar in terms of its construction and its operation, the valve assembly 100 , However, the valve is 300 , unlike the valve 100 , with a breakable sealing washer 370 provided inside the inner chamber 316 is positioned, which is formed in part by the lower housing portion of the housing. The breakable sealing disc 370 may act as a tamper-evident feature, and may also provide additional sealing for the valve assembly 300 form. In this embodiment, the valve member 350 with a sharp edge 364 provided, which is formed on its outer surface. When the valve part 350 is rotated from the open to the closed state pierces the projection 364 the sealing washer 370 and allows a fluid or air to pass through the valve member 350 flows when it is moved back to the closed position.

Below is on 6 and 7 Referring to still another embodiment of the valve assembly according to the present invention, the whole with the reference numeral 400 is designated. The valve arrangement 400 is similar to the valve assembly in terms of their structure and operation 100 , As shown in the figures, the valve assembly is 400 by means of thread with the neck 462 a container 465 screwed. A cap 488 is provided with the upper section 420 the valve assembly 400 interacts. Similar to the valve arrangements described above, the valve member 450 with an axial bore 452 provided therein, and a fluid or air through the valve assembly 400 flow when the valve member 450 is in the open position. Furthermore, the axial bore 452 destined to a manufactured object 453 or to take up and store a fluid, such as a prize, an admission ticket, a vitamin supplement or a drug. In such embodiments, it is advantageous to insert a gasket into the valve assembly, similar to that described in connection with FIG 5 has been described to prevent the manufactured article falls into the container during storage. Alternatively, a removable seal over the mouth of the container 462 be put on.

Now be on 8th and 9 Reference is made to an alternative application for the valve 400 explain. In 8th is the valve 400 on the end of a piping arrangement 472 assembled. The piping arrangement 472 is with two end connections 474a . 474b and with an elongated tube 476 Mistake. Every connection 474a is threaded over the neck of the container 465 engaged and has a central opening, which is intended to the pipe 476 to allow telescoping in the container 475 and move out of this. The valve arrangement 400 stands with the end connection 474b engaged so that when the valve is in the open position, fluid from the container 465 through the piping arrangement 472 and out of the valve 400 can flow out.

9 explains the valve assembly 400 like her on the neck 462 of the container 465 is appropriate. The valve arrangement 400 is shown in the open position, in which a straw arrangement 572 in the axial bore 552 is used. The straw arrangement 572 has a straw 576 and a plug part 574 on. The plug part 574 is with a circumferentially extending O-ring 575 and is intended to be with the inlet opening of the valve 400 sealingly cooperate.

Below is on 10 Reference is made, in which a further embodiment of the valve assembly according to the present invention is explained, in whole with the reference numeral 500 is designated. As shown here, the valve assembly 500 used the flow between two containers 565a and 565b to dose. The flow path between the containers has upper and lower conduit arrangements 572a . 572b and a valve assembly 500 on. The conduit assemblies are sealing between the containers 565a . 565b and the valve assembly 500 connected.

The valve arrangement 500 is similar in structure and function to the valve assembly 100 , However, the valve assembly has 500 , unlike the valve assembly 100 , Operating arms 528a to 528d on which the relative rotation of the upper housing section 520 the valve assembly 500 with respect to the lower housing section 530 facilitate or allow, thereby moving the valve member between the open and the closed position. O-rings 525 are provided to seal the connections of the components and to prevent leakage from the flow path.

Below is on 11 and 12 Reference is made in which a valve assembly 600 shown in conjunction with a colostomy bag assembly 665 is used. The colostomy bag arrangement 665 has a bag 667 , a proximal ring 669 and a distal ring 671 on. The proximal ring 669 is provided with an outer flange which seals with the bag 667 engaged. Two retaining pins 675a . 675b are on the inner diameter of the proximal ring 669 educated. These pens 675a . 675b are in corresponding engagement recesses 629a . 629b used in the valve assembly 600 are formed and the valve assembly 600 at the proximal ring 669 to back up. Similarly, the distal ring 671 , which is attached to the surface of a patient's body, with retaining pins 673 . 673B provided in corresponding engagement recesses 631a (not shown), 631b are used in the valve assembly 600 are formed. The valve arrangement 600 is with an actuating arm 628 which allows the patient to move the valve between the open and closed positions as desired.

Below is on 13 Referring to Figure 1, there is shown a showerhead provided with a valve assembly constructed in accordance with an alternative embodiment of the present invention and having the reference numeral 700 is designated. The valve arrangement 700 is again similar in construction and operation to the valves described above, but with the valve assembly 700 unlike the previously described valves with a number of flow passages 753 is provided in the valve part 750 are formed.

De flow passages 753 extend along an axis perpendicular to the axial bore 752 is such that, when the valve member is in the closed position, the fluid through the valve through the number of flow passages 753 passes. Therefore, when the valve assembly 700 In the open position, a single stream of water is discharged from the showerhead assembly, and when in the closed position, water flows out of the flow passages 753 , O-ring seals 755a . 755b and 757a . 757b are at both ends of the axial bore 752 and the flow passages 753 arranged to properly seal the valve when it is in the open or in the closed position.

The shower head, which is in 13 is still with a control ring 790 provided sealingly with the upper section 720 the valve assembly 700 interacts with an O-ring seal 792 is used. The tax ring 790 is with a drive pin 722 provided, which is formed on its inner surface. The drive pin 722 stands by the slot 721 before that in the upper section 720 the valve assembly 700 is formed, and acts with the cam 760a . 760b together, in the valve part 750 are formed. In this way, a rotation of the control ring moves 790 with respect to the lower housing section 730 the valve assembly 700 the valve member between the open and the closed position.

One One skilled in the art will readily recognize that the above described showerhead assembly for use in dosing a Air supply can be adjusted instead of a fluid.

Below is on 14 Reference is made in which a valve assembly with the reference number 800 is shown, which is constructed according to the present invention and within the inlet 862 a fuel tank is arranged. The use of the valve assembly 800 in this application allows a removable gas cap is dispensed with, and requires only a rotation of about 67 ° of the drive ring 890 to open the valve. The axial bore 852 the valve member may be adapted to be a standard nozzle 855 a fuel pump or pump receives.

Now be on 15 and 16 Reference is made in which a surgical instrument is shown, which is constructed according to a preferred embodiment of the present invention and in whole with the reference numeral 900 is designated.

Minimal Invasive surgical procedures are carried out in a conventional manner by surgical Instruments through a narrow tube or cannula through a small access incision be made in the body of a Patients using a trocar or sealant is trained. For example, laparoscopic surgical Interventions within the abdominal cavity through small incisions executed which are formed in the abdominal wall. During one Laparoscopic surgery will inflate gases into the abdominal Cavity initiated to the abdominal wall or the peritoneum away from the vital organs within the abdominal cavity raise so that a sufficient area is provided in which to work can.

During laparoscopic surgery, it is necessary to maintain the atmospheric integrity of the abdominal cavity and, therefore, to prevent the escape of the inflating gases from the site of the surgical procedure. It is therefore common to provide a seal assembly with the cannula so that when instruments are present within the cannula and when the instruments are withdrawn from the cannula, the tubular passage extending extends therethrough, is sealed, to prevent the escape of inflating gases. For example, it is known to use an elastomeric sealing member having an opening or slot which can be pushed open when the instrument is pushed through it. The sealing member prevents the escape of inflating gases when the instrument is present in the cannula and is absent therein. There are known disadvantages associated with the use of such seals. In particular, the opening or slot may rupture when an instrument is forced through it, so that the seal is rendered ineffective with respect to the prevention of the escape of inflation gases through the cannula sleeve.

Therefore, a surgical instrument 900 As will be described below, the valve assembly of the present invention has been provided to prevent the escape of inflation gases through the cannula in the absence of a surgical instrument. The surgical instrument 900 is intended for use as an access device, and more particularly as a device for facilitating the insertion of a surgical instrument into a subject's body during a minimally invasive surgical procedure. Surgical instruments passing through the surgical instrument 900 For example, according to the present invention, when inserted into the body of a patient, there may be instruments for attaching clips, grippers, dissectors, retractors, staplers, laser fibers, photographic equipment, endoscopes, laparoscopes, tubes, tubing, and the like.

The surgical instrument or access device 900 is with a proximal valve body 910 provided, which has an inlet opening 912 for receiving surgical instruments. The valve housing 910 has an upper housing portion 920 and a lower housing portion 930 on, among other things, a substantially hemispherical interior chamber 916 for receiving a substantially spherical valve member 950 form. The inner chamber 916 stands with an outlet opening 914 of the valve housing 910 in communication with the inlet opening in the axial direction 912 is aligned. The valve housing 910 is operatively a lower cannula housing 980 assigned. Preferably, the valve housing 910 and the cannula housing 980 made of a polycarbonate material.

An elongated cannula sleeve 982 extends distally from the cannula housing 980 , The cannula sleeve 982 is with an elongated passage 984 provided, which extends therethrough and which forms a longitudinal axis, which is indicated by the reference numeral X. The passage 984 is aligned in the axial direction with the inlet opening 912 and the outlet port 914 of the valve housing 910 , The cannula sleeve 982 may be made of stainless steel or other suitable rigid material, such as polycarbonate materials or the like. An inlet pipe 986 is in the cannula housing 980 built-in to the passage of inflating gases through the cannula sleeve 982 and to allow into the cavity of a patient's body. The inlet pipe 986 may be provided with a shut-off valve, which is not shown.

The valve part 950 , which is preferably made of a polycarbonate material, is for axial rotation within the inner chamber 916 mounted about an axis perpendicular to the longitudinal axis of the cannula sleeve 982 extends. Diametrically opposed pivot pins 958 , where in 16 only one pin is shown extend radially outwardly from the surface of the valve member 950 for receiving within diametrically opposed recesses 932a . 932b to the axial rotation of the valve member 950 to enable. An axial bore 952 extends through the valve member 950 , and a convex sealing surface 954 is at a distance from the axial bore 952 on the valve part 950 intended. The valve part 950 is held for movement between an open position and a closed position. In the open position of the valve part 950 , in the 17a is shown, is the axial bore 952 is axial direction with the elongated passage 984 the cannula sleeve 982 and with the inlet and outlet ports 912 . 914 of the valve housing 910 aligned. In the closed position of the valve part 950 , in the 17c is shown, the axial bore extends 952 perpendicular to the elongated passage 982 , and the sealing surface 954 is in the axial direction with the inlet opening 912 of the valve housing 910 aligned.

As has been stated in relation to the embodiments described above, a cam control mechanism is operative with the valve housing 910 and the valve part 950 connected to the valve part 950 between the open position 17a and the closed position 17c to move. The cam control mechanism has curved cams 960a . 960b on that on the outer surface of the valve member 950 are formed, and a cam pin 922 extending radially inwardly from the inner surface of the upper housing section or drive ring 920 extends to cooperate with the cams. As before, a leading edge of the cams acts 960a . 960b with the no ckenzapfen 922 together. This interaction allows the movement of the valve member 950 when the drive ring 920 about the longitudinal axis X of the cannula sleeve 982 is turned. When the valve part 950 is moved between the open and the closed position, it is rotated about the pivot axis Y, extending through the pivot pin 958 of the valve part 950 extends, as in 3b is shown.

The drive ring 920 is rotatable on the proximal end of the valve housing 910 held and has diametrically opposed, in the radial direction inwardly extending guide ribs 924 on that with an annular guide surface 938 interact on the outside of the lower housing section 930 of the valve housing 910 are formed. stop surfaces 940 limit the rotational movement of the upper housing section or drive ring 920 relative to the longitudinal axis of the cannula sleeve 982 ,

A grooved actuator button 990 is effective with the drive ring 920 engaged. The operation button 990 is with an inlet opening 992 provided with the axial passage 984 the cannula sleeve 982 is aligned and partially sets the inlet opening 912 of the valve housing 910 firmly. The interaction between the drive ring 920 and the operation button 990 is achieved by the coupling of a pair of diametrically opposed, radially outwardly extending engagement lugs 926 on the drive ring 920 accomplished, with in 16 only one approach is shown, with a pair of corresponding, diametrically opposed internal recesses 924a . 994B placed in the inner cavity of the operating knob 990 are formed. Alternative structural means may be provided to facilitate easy operation of the drive ring 920 to enable.

A flange 942 is radially outward from the lower portion 930 of the valve housing 910 to provide a lever for the surgeon when the actuation button 990 is turned. The valve housing 910 is still with a membrane seal 996 provided proximal to the inner chamber 916 is arranged and held within an annular recess. The membrane seal 996 is with a central slotted opening 998 provided in the axial direction with the outlet opening 912 of the valve housing 910 and with the passage 984 the cannula sleeve 982 is aligned. The central opening 998 is sized and configured to allow passage of a surgical instrument therethrough. The membrane seal 996 Helps the escape of inflating gases from the access device 900 To prevent ver if an instrument is present in this and the valve member 950 in an open position.

Now be on 18 and 19 Referring to Figure 1, there is shown a perspective view of another embodiment of the surgical access device of the present invention, identified by the reference numeral 1000 is designated and a removable valve housing 1010 having. More in detail, and how best 5 shows, is the valve body 1010 detachable with the cannula housing 1080 connected. This enables a surgeon to make the cannula housing 1080 during the execution of an intervention in which the valve housing is not needed. It also provides the surgeon with the ability to easily retrieve samples from the surgical site. As shown, the releasable relationship of the valve housing 1010 and the cannula housing 1080 facilitated or possible by a threaded connection between the two parts. Alternative coupling arrangements are contemplated and within the scope of the disclosure of the present invention.

Even though the valve assembly of the present invention and the surgical Access device in which the valve assembly is used, in Reference to preferred embodiments a person skilled in the art will recognize in the present application Territory readily that changes and modifications can be made to it without affecting the area of the present invention as defined by the appended claims is.

Farther can the valve assembly according to the present invention in alternative Applications that have not been described herein are used are. For example, the valve may be installed in a sink to eliminate the need to get around a plug. Furthermore, the valve can spunde or Replace plugs used to break through in boat hulls close. Furthermore, the valve caps on hand creams, toothpaste, etc. replace.

Summary

Disclosed is a valve assembly intended to be used in a variety of applications, such as in the medical beverage industry or other consumer, pharmaceutical, automotive, and home and marine applications. The valve described has, inter alia, a valve housing, which with an upper housing portion and with a lower Gehäuseab is cut and provided with a substantially spherical valve member. The upper and lower housing sections of the housing define an inner chamber for receiving the valve member and a central axis for the valve. The substantially spherical valve member is inserted within the inner chamber of the valve housing and is provided with an axial bore extending therethrough. The valve member is for movement between an 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 a closed position wherein the axial bore of the valve member is out of alignment with the inlet and Outlet openings of the valve housing is held. The valve assembly further includes a cam control mechanism operatively associated with the valve housing and the valve member to move the valve member between the open position and the closed position.

Claims (49)

Valve arrangement with: a) a valve housing, which an upper housing section and a lower housing portion, wherein the lower and the upper housing portion an inner chamber for receiving a valve member and a central axis for the valve form, the housing with axially aligned inlet and outlet openings is provided, which is formed in the upper and lower housing portions are; b) a substantially spherical valve member, within the inner chamber of the valve housing used is and is provided with an axial bore extending through it extends, wherein the valve member for movement between a open position in which the axial bore of the valve member axially with the intake and outlet openings of the valve housing is aligned, and a closed position in which the axial Bore of the valve part outside alignment with the inlet and outlet openings of the valve housing is, is held; and c) a means that the valve body and associated with the valve member is to the valve member between the open position and the closed Move position when the upper housing section of the housing to the central axis is rotated with respect to the lower housing portion. Valve arrangement according to claim 1, characterized in that that this Means that the valve body and is operatively associated with the valve member, around the valve part between the open position and the closed one Position to move, having a cam control mechanism. Valve arrangement according to claim 2, characterized in that that the Curve control mechanism has cam control surfaces on the outer surface of the Valve part are formed, and a cam pin on the inner surface of the upper housing section of the housing is trained. Valve arrangement according to claim 3, characterized in that that the Curve control surfaces, the on the outer surface of the Valve part are formed by a pair of curved cams are fixed, which are formed at angles to each other. Valve arrangement according to claim 2, characterized in that that the Curve control mechanism has at least one curved recess, the on the outer surface of the Valve part is formed, and a cam pin on the inner surface of the upper housing section of the housing is designed to interact with the cam recess. Valve arrangement according to claim 1, characterized in that that this Valve part for an axial rotation held within the inner chamber about an axis is that extends perpendicular to the central axis passing through the upper and lower housing sections of the valve housing is fixed. Valve arrangement according to claim 1, characterized in that that this casing includes a means that associated with the inlet opening is to the valve with a container or a pipeline. Valve arrangement according to claim 1, characterized in that that this casing having a means associated with the outlet opening to the valve with a container or a pipeline. Valve arrangement according to claim 1, characterized in that that this Valve part has a sealing surface, the for a sealing engagement with a valve seat is adjusted, formed in the housing is when the valve is in the closed position. Valve arrangement according to claim 9, characterized in that that the sealing surface of the valve member an annular Has recess in which an O-ring is arranged. Valve arrangement according to claim 9, characterized in that the valve member has an outer radius which is greater than an inner radius of the valve seat, so that a press fit with the sem is generated when the valve assembly is in the closed position. Valve arrangement according to claim 1, further characterized through a breakable ring that connects to the outside of the valve body Intervention to provide a visual indication of whether the Valve already open has been. Valve arrangement according to claim 1, further characterized through a breakable sealing washer, which enters the inner chamber of the Valve is used to provide a visual indication, whether the valve is open has been, and wherein the valve member has a means to the To puncture the disc when the valve is opened. Valve arrangement according to claim 1, characterized in that that the axial bore of the valve member for receiving and storing a adapted and configured, if the valve is in the closed position. Valve arrangement according to claim 1, further characterized by an agent associated with the valve housing to the axial rotation of the lower housing section of the housing relative to the upper housing portion to facilitate. Valve arrangement according to claim 1, characterized in that that one Number of flow passages in the valve member are formed, extending therethrough extend along an axis perpendicular to the axial bore is, so that then, when the valve is in the closed position, fluid or air passes through the valve through the number of flow passages. Valve arrangement according to claim 1, characterized in that that yourself the valve member between the open position and the closed Position moves when the upper housing section of the housing to the central axis at between about 57 ° and about 77 ° with respect to the lower housing portion is turned. Valve arrangement according to claim 1, further characterized through a telescopic nozzle or sleeve, which is disposed within the axial bore of the valve member. Surgical Access Device, with: a) one Valve housing, which defines a valve seat to receive a valve member, and which is provided with axially aligned inlet and outlet ports; b) an oblong Cannula sleeve, the in terms of effect valve housing is assigned and an elongated Passage which extends through them and the a longitudinal axis established with the intake and outlet openings of the valve housing is aligned; c) a substantially spherical Valve part that sits inside the valve body and an axial bore having, which extends therethrough, wherein the valve member for one Movement between an open position in which the axial bore the valve member axially with the elongated Passage of the cannula sleeve and with the intake and outlet openings of the valve housing is aligned, and a closed position in which the axial bore of the valve member perpendicular to the elongated Passage of the cannula sleeve and the inlet and outlet of the valve housing extends, is held; and (d) an agent which is effective in the valve housing and the valve member is associated to the valve member between the open position and the closed position to move. Surgical access device according to claim 19, characterized in that the Valve part for an axial rotation within the valve seat about an axis that perpendicular to the axially aligned inlet and outlet ports of the valve housing extends, is held. Surgical access device according to claim 19, characterized in that the Means for moving the valve member Curve control surfaces, the on the outer surface of the Valve part are formed, and a cam pin for a movement relative to the cam control surfaces the valve member is held. Surgical access device according to claim 21, characterized in that the cam pin in the radial direction inwards starting from a Drive ring extends, which is supported on the valve housing and for rotation around the longitudinal axis the cannula sleeve is held, and wherein rotation of the drive ring is a corresponding rotation the valve member within the valve seat of the valve housing for Episode has. Surgical access device according to claim 22, characterized in that the Cam control or cam surfaces, the on the outer surface of the Valve part are formed, formed by a pair of cams are at angles with respect to the axis of rotation of the valve member are arranged to each other. A surgical access device according to claim 19, characterized in that the access device further comprises a membrane seal disposed proximally with respect to the valve seat, the membrane seal having an opening axially aligned with the elongate passage The cannula sleeve is aligned and dimensioned to allow passage of a surgical instrument therethrough. Surgical access device according to claim 19, characterized in that the Cannula sleeve of go off a cannula housing, that the valve housing assigned. Surgical access device according to claim 25, characterized in that the Cannula housing detachable with the valve housing connected is. Surgical access device according to claim 19, characterized in that the Valve part a convex sealing surface having, with the inlet opening of the valve housing is aligned when the valve member in the closed Position is. Surgical access device according to claim 19, characterized in that the Means that the valve body and operatively associated with the valve member is to the valve member between the open position and the closed To move position, at least one curved recess has, the on the outer surface of the Valve part is formed, and a cam pin on the inner surface of the housing is formed to cooperate with the cam recess. Surgical access device according to claim 19, characterized in that the Valve part a sealing surface that has for a sealing interaction with a valve seat is adapted, the in the case is formed when the valve in the closed position located. Surgical access device according to claim 29, characterized in that the sealing surface of the valve member an annular Has recess in which an O-ring is arranged. Valve arrangement, with: a) a valve housing, the forms a valve seat to receive a valve member, and with axially aligned inlet and outlet openings is provided; b) a substantially spherical valve member, within the inner chamber of the valve housing used is and is provided with an axial bore extending through it extends, wherein the valve member for movement between a open position in which the axial bore of the valve member axially with the intake and outlet openings of the valve housing is aligned, and a closed position in which the axial Bore of the valve part outside alignment with the inlet and outlet openings of the valve housing is, is held; and c) a curve control means, the the valve housing and is operatively associated with the valve member, around the valve part between the open position and the closed one To move position. Valve arrangement according to claim 31, characterized in that that this Valve part for an axial rotation held within the valve seat about an axis is perpendicular to the axially aligned inlet and outlet ports of the valve housing extends. Valve arrangement according to claim 32, characterized in that that this Cam control means for moving the valve member having cam control surfaces, the on the outer surface of the Valve part are formed, and a cam pin for a movement relative to the cam control surfaces of Valve part is held. Valve arrangement according to claim 33, characterized in that that yourself the cam pin in the radial direction inwards starting from a Drive ring extends, which is supported on the valve housing and for an axial Rotation held relative to the axially aligned inlet and outlet ports is, and wherein a rotation of the drive ring a corresponding Rotation of the valve member within the valve seat of the valve housing for Episode has. Valve arrangement according to claim 33, characterized in that that the Cam surfaces the on the outer surface of the Valve part are formed, formed by a pair of cams are, with respect to the axis of rotation of the valve member at angles to each other are arranged. Valve arrangement according to claim 31, characterized in that that this Means that the valve body and is operatively associated with the valve member, around the valve part between the open position and the closed one Position to move, having a cam control mechanism. Valve arrangement according to claim 31, characterized in that that the Curve control mechanism has at least one curved recess, the on the outer surface of the Valve part is formed, and a cam pin on the inner surface of the housing designed to cooperate with the cam recess. Valve arrangement according to claim 31, characterized in that that this casing having a means associated with the inlet opening to the valve with a container or to engage a pipeline. Valve arrangement according to claim 31, characterized in that that this casing having a means associated with the outlet opening to the valve with a container or to co-operate a pipeline. Valve arrangement according to claim 31, characterized in that that this Valve part has a sealing surface, the for a sealing engagement with a valve seat is adjusted, formed in the housing is when the valve is in the closed position. Valve arrangement according to claim 37, characterized in that that the sealing surface of the valve member an annular Has recess in which an O-ring is arranged. Valve arrangement according to claim 31, further characterized through a breakable ring that connects to the outside of the valve body Intervention to provide a visual indication of whether the Valve already open has been. Valve arrangement according to claim 31, further characterized through a breakable sealing washer, which enters the inner chamber of the Valve is used to provide a visual indication, whether the valve is open has been, and wherein the valve member has a means to the To puncture the disc when the valve is opened. Valve arrangement according to claim 31, characterized in that that the axial bore of the valve member for receiving and storing a adapted and configured, if the valve is in the closed position. Valve arrangement according to claim 31, further characterized by an agent associated with the valve housing to the axial rotation of the lower housing section of the housing relative to the upper housing portion to facilitate. Valve arrangement according to claim 31, characterized in that that one Number of flow passages in the valve member are formed, extending therethrough extend along an axis perpendicular to the axial bore is, so that then, when the valve is in the closed position, fluid or air passes through the valve through the number of flow passages. Valve arrangement according to claim 31, characterized in that that yourself the valve member between the open position and the closed Position moves when the upper housing section of the housing to the central axis at between about 57 ° and about 77 ° with respect to the lower housing portion is turned. Valve arrangement according to claim 31, characterized in that that this Valve part an outer radius which is larger as an inner radius of the valve seat, so that a press fit with this generates when the valve assembly is in the closed position located. Valve arrangement according to claim 31, further characterized through a telescopic nozzle or sleeve, which is disposed within the axial bore of the valve member