CA2145586C - Colostomy pouches with vent valve - Google Patents
Colostomy pouches with vent valveInfo
- Publication number
- CA2145586C CA2145586C CA 2145586 CA2145586A CA2145586C CA 2145586 C CA2145586 C CA 2145586C CA 2145586 CA2145586 CA 2145586 CA 2145586 A CA2145586 A CA 2145586A CA 2145586 C CA2145586 C CA 2145586C
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- CA
- Canada
- Prior art keywords
- valve
- valve assembly
- interior
- collection pouch
- ostomy collection
- Prior art date
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Abstract
A manual gas vent assembly is provided herein for use in venting gas from the interior of a conventional, unvented ostomy collection pouch. Such vent assemblyincludes a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough. The valve assembly includes an input portion for communicating with the interior of the ostomy collection pouch, and an output portion for communicating with the atmosphere.
Reusable mounting means are provided for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof. The reusable mounting means thus releasably retains therein a portion of the manually-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user. The mounting means includes a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof. It also includes an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount. It further includes means for removably-securing the invasive portion of the valve mount to the internal retainer. Finally, it includes means for sealing a portion of the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
Reusable mounting means are provided for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof. The reusable mounting means thus releasably retains therein a portion of the manually-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user. The mounting means includes a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof. It also includes an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount. It further includes means for removably-securing the invasive portion of the valve mount to the internal retainer. Finally, it includes means for sealing a portion of the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
Description
8 ~
(a) TITLE OF THE INVENTION
COLOSTOMY POUCHES WITH VENT VALVE
(b) TECHNICAL FIELD TO WHICH THE INVENTION RELATES
The present invention relates to ostomy collection pouches, and more particularly to means for m~nl-~lly venting ostomy collection pouches into the surrounding atmosphere so that gas build up therein can be released.
BACKGROUND ART
A colostomy is a surgical procedure in which an artificial anus is formed to accommodate persons whose colon has become infected or cancerous and can no longer function. In such cases, the patient is left with no normal bowel function, and a result of the colostomy, body wastes pass through the artificial anus into the colostomy collection bag.
A colostomy can be permanent or temporary, but in either event, the person must use a pouch system to collect bowel wastes. In some cases after the colon is healed, the surgical procedure is reversed for the temporary colostomy user, normal bowel function follows and the pouch is no longer needed. Unrollullately, permanent colostomy users need a pouch for the rest of their lives to handle their body wastes.
Present day colostomy pouches are made of a plastic film. The top portion of thebag includes a hole with an a&esive substance surrounding the hole. This bag is attached to the body of the person - 21~5586 over the artificial anus and the waste is permitted to enter the pouch through the opening. The bottom part of the pouch may be fitted with a clamp assembly were the waste may be removed while the bag is still attached to the user's body.
Presently available pouches have been designed to serve this purpose well. The waste enters the pouch and is held by the clamp assembly. During use gases from the body and the waste start to build up inside the collection pouch and in most instances there is no way for the gas to be released except through the clamp assembly. This gas build up causes the pouch to blow up and become uncomfortable and very bulky. If the gas situation is not relieved within a reasonable time limit the waste and gas build up can be so great as to pull the pouch away from the body where it is adhered and a uncomfortable situation occurs. As a result, present day pouches and systems limit the mobility of pouch users. They become fearful of moving about because of a perceived embarrassment should a pouch be dislodged.
The desirability of fabricating an ostomy collection pouch with a valve has been recognized in United States Patent 4,810,250, issued to Ellenberg, et al. on March 7, 1989, and United States Patent 4,863,447, issued to Smith on September 5, 1989. The gas vent of Ellenberg is either fixably secured to the pouch thereof at the time of manufacture or is inserted through a pre-made opening at the time of manufacture or just prior to use by the user. No means are shown or suggested for removing the valve assembly for cleaning. As to the valve assembly disclosed in Smith, such valve 2~ ~ 5 ~6 assembly is removable from the pouch for cleaning but is taught to cooperate with a special fixture moulded into the bag or affixed thereto at the time of m~mlf~ctl-re Another selectively operable vent is shown in United States Patent 4,366,836, issued to Villari on January 4, 1983. This vent is also affixed to the ostomy bag at the time of m~mlf~ctllre and may not be readily removed for cleaning.
Vents which cooperate with colostomy bags that are specially m~mlf~ctured through co"""u~icating vents are also shown in United States Patent 2,054,535 issued to A.W. Diack on September 15, 1936 and in Offenlegung.~s~hrift 25 57 66 issued to Beiersdorvorf on May 26, 1977. All of the aforementioned venting devices suffer from having to be specially accommodated for in the m~mlf~cture of a colostomy bag and additionally in some i~ es not being readily removable for cleaning, a distinct disadvantage since such valves are likely to foul. Also known in the art are continuously-venting gas vent filter assemblies which have the disadvantage of not only having to be m~nllfactllred with the ostomy appliances but also of suffering from indiscriminate release of gases. Such devices are shown in United States Patent 4,203,445 issued to Jessup, et al. on May 20, 1980; United States Patent 4,211,224, issued to Kubach, et al. on July 8, 1980; United States Patent 4,211,659,issued to Jensen, et. al. on October 25, 1983; Offenlegllng~s~hrift DE 3409527 issued to Beiersdorf on September 19, 1985 and Offenleglmg~scllrift 2,307,063 issued to Virksomheder, et al. on August 23, 1973.
(d) DESCRIPTION OF THE INVENTION
Therefore an object of one aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of the conventional, unvented ostomy 25 collection pouch.
An object of a further aspect of the present invention is to provide a method for in~t~lling a gas vent assembly for venting gas from the interior of a conventional, unvented ostomy collection pouch.
An object of a still further aspect of the present invention is to provide a gas vent 30 assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be easily and quickly removed from the pouch for cleaning and which can be reinstalled therein without disrupting the use of the pouch.
An object of a still another aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be installed on a conventional, unvented ostomy collection pouch by the user.
An object of still another further aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be moved from the unvented pouch to another unvented pouch venting the same for continuous use.
An object of another further aspect of the present invention is to provide a gasvent assembly for ostomy collection pouches which can be selectively vented at any time by the user, and which would not release gas unless the user so desires.
An object of another further aspect of the present invention is to provide a vent for ostomy collection pouches which can simply and easily be opened and closed.
An object of an additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which gives the user much more freedom and mobility then presently known to the user so as not to be restricted by travel, work, rest and recreation.
An object of a still additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch so that the pouch does not burst from excess gas.
A object of a still further additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which provides the user with peace of mind and flexibility.
An object of an additional still further aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which is simple to design, inexpensive to m~mlf~ctl-re, rugged in construction, easy to use, and efflcient in operation.
~2 ~
By the present invention, in one aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass the~ ough from the 5 interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therc~r~Jugh, and having an input portion for col""~l~nic~ting with the interior of the ostomy collection pouch, an output portion for co~.""~ tin~ with the atmosphere, and reusable mounting means for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, 10 the reusable mounting means releasably ret~ining therein a portion of the m~nll~lly-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for exten~ing through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the internal retainer, means for sealing a portion of the ostomy collection pouch betwen the internal retainer and the valve mount, and means for piercing and puncturing a hole through the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
By the present invention, in another aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, essentially-uniform, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having an input portion for co~ unicating with the interior of the ostomy collection pouch, an output portion for co~",ll~-irating with the atmosphere, and reusable mounting means for A~
6 2 ~ 4~
mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, the reusable mounting means releasably re~ining therein a portion of the m~ml~lly-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user, the mounting means including a valve mount for 5 receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion 10 of the valve mount to the internal rel~ er, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount, and means for piercing and puncturing a hole through the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
By one variant of the two above aspects of this invention, the input portion of the valve assembly bears the piercing and puncturing means, the piercing and puncturing means including a sharpened extensive tubular portion integral with the input portion of the valve assembly.
By another variant of the two above aspects of this invention and of a variant thereof, the removable securing means comprises an int~rn~lly-threaded opening which is disposed in the internal retainer, and including complementary external threads which are disposed about the valve.
By yet another variant of the two above aspects of this invention and of variants thereof, the sealing means comprises an annular flange which is provided by the valve mount, and an O-ring which is disposed about the invasive portion thereof, wherein threading of the valve mount into the internal retainer colllpresses the O-ring between the annular flange and the internal retainer, thereby creating a seal with the portion of the ostomy pouch.
By still another variant of the two above aspects of this invention and of variants thereof, the valve assembly comprises threads on the input portion thereof, and wherein 8 ~
the valve mount comprises complçmPnting internal threads in the portion thereof which receives the input portion of the valve assembly, the valve assembly further including an O-ring which is disposed about the threads on the input portion thereof, whereinthreading of the valve assembly into the valve mount conlpresses the O-ring and seals the valve assembly to the valve mount.
By the present invention, in yet another aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, essentially-unirolnl, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass the~ lllough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing ther~lrough, having an input portion for co",l"ll~ ting with an ostomy collection pouch, the input portion having piercing and puncturing means which are disposed thereon including a sharpened extensive tubular portion which is integral with the input portion of the valve assembly, an output portion for collllllullicating with the atmosphere, and mounting means for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the intern~l retainer, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount; the mounting means releasablyret~ining therein a portion of the m~nll~lly-operable valve assembly so as to position the input portion thereof proximate a stoma of a user.
By the present invention in yet still another aspect, the combination is provided of a conventional, unvented ostomy collection pouch and a manual gas venting assembly for use in venting gas from the interior of the conventional, unvented ostomy collection pouch to the atmosphere, the combination comprising an ostomy collection pouch, the 7 a ostomy collection pouch being essentially unirollll prior to the mounting of valve assembly and a m~ml~lly-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of the ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough and having an input portion for co""~ ic~ting with the interior of the ostomy collection pouch, the input portion having piercing and puncturing means which is disposed thereon including a sharpened extensive tubular portion which is integral with the input portion of the valve assembly, an output portion for c~nllllullicating with the atmosphere, and mounting means for mounting the valve assembly to the ostomy collection pouch toprovide access to the interior thereof, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for e~ten~ing through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer which is disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the internal retainer, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount; whereby, themounting means releasably retains therein a portion of the m~ml~lly-operable valve assembly so as to position the input portion thereof proximate a stoma of a user.
(e) DESCRIPTION OF THE FIGURES
In the accompanying drawings, Figure 1 is a pictorial representation of an ostomy collection pouch incorporating the principles of aspects of the present invention just prior to mounting on a cooperating flange over a stoma of a patient;
Figure 2 is a pictorial feprese~ lion of an ostomy collection pouch incorporating the principles of aspects of the present invention installed and in use;
Figure 3 is a elevational view of one embodiment of one aspect of the present invention;
Figure 4 is a cross-sectional view taken along the lines 4-4 of Figure 3;
7 b Figure 5 is a cross-sectional view of a second embodiment of an aspect of the present invention;
Figure 6 is a cross-sectional view of still another embodiment of an aspect of the present invention; and Figure 7 is a cross-sectional view of a self-piercing valve assembly constructedin accordance with the principles of aspects of the present invention.
(f~ AT LEAST ONE MODE FOR CARRYING OUT THE I~IVENTION
Referring now to the Figures, and more particularly, to Figures 1 and 2, there is illustrated a disposable or reusable A~
. .
21~86 ostomy collection pouch (P) having an essentially-uniform wall thickness for mounting on an adhesive backed flange (F). The adhesive backed flange (F) is adhered to the skin of the user (V) in such a position that the stoma (S) of the user is surrounded by a central opening provided in the adhesive backed flange (F). The flange (F) provides a mount (M) which is adapted to cooperate with a cooperation mount (CM) disposed on the pouch (P). The pouch (P) is of a conventional unvented design and has mounted thereon a gas vent assembly 10 constructed in accordance with the principles of the present invention. The gas vent assembly 10 includes a mount 12 and a valve assembly 14 as will hereinafter be described in detail. The gas vent assembly is further illustrated in Figures 3 and 4 of the drawing.
Referring now to Figures 3 and 4, there is shown the gas vent assembly 10 which includes a mount 12 for affixing the valve assembly 14 to a pouch (P) only a portion of which is shown. A hole 16 has been made to clear a selected portion of the wall of the pouch (P) and inserted therethrough is the valve assembly 14. The valve assembly 14 includes an externally-threaded invasive portion 18 which is essentially tubular in shape and terminates in an enlarged head 21 in which is provided a reservoir 23 adapted to receive an absorbent pad 25. The pad 25 may be used for an antiseptic and/or a deodorant, and has disposed therein a valve seat 20. The valve seat 20 is dimensioned 2145~86 to cooperate with a valve head Z4 which, when in contact with the valve seat 20, allows zero passage of gas through a longitudinal bore 24 disposed in the invasive portion 18.
The valve head 22 is borne by a valve stem 26 biased in 8a 21~5~86 position by a spring 28. The spring 28 is biased so that it pulls the valve head 22 against the valve seat 20 when at rest.
Threadably affixed to the valve stem 26 is a push button 30 which compresses the spring 28 and forces the valve head 22 away from the seat 20 by moving the valve stem 26 within the longitudinal bore . 4 when pressure is applied to push button 30. When the push button is released as a result of the pressure of the spring 28 the valve head again is seated in the valve seat 20 and the longitudinal bore 24 is closed off.
The externally threaded invasive portion 18 of the valve assembly 14 is retained in position through the hole 16 in the pouch (P) by an internal retaining nut 32. The internal retaining nut 32 is threaded with threads complimentary to those on the externally threaded valve portion 18. An 0-ring 34 is disposed coaxially about the longitudinal axis of the externally threaded invasive portion 18 such that when the externally threaded invasive portion 18 is threaded into the internal retaining nut 32 the 0-ring forms a seal between a head flange 36 of the externally threaded invasive portion 18 and the internal retaining nut 32.
The 0-ring can also serve as a means for sealing the wall of the pouch (P) to the gas vent assembly 10. However, to guarantee such seal an internal retaining nut 32 has disposed therein an annular groove 38. The annular groove 38 is disposed perpendicular to the longitudinal axis of the externally threaded valve portion 18 and receives therein the wall material of the pouch (P) as illustrated.
Clamping and sealing the wall of the pouch (P) in place about the ~ 21~8fi gas vent assembly 10 is a cap 40, which has an internally extending annular ridge 42. When the wall of the pouch (P) is placed over the internal retaining nut 32 and the cap 40 is snapped into position so that the internally extending annular ring 42 is seated in the annular groove 38 of the internal retaining nut 32 a seal is formed between the wall of the pouch (P) and the gas vent assembly lO effectively sealing the interior of the pouch (P) from the outside atmosphere. When the user presses on the push button 30 mounted on the valve stem 26 the valve head 22 moves away from the valve seat 20 as a result of the compression of the spring 28 and the longitudinal bore 24 of the externally threaded invasive portion 18 permits communication between the interior of the pouch and the outside atmosphere.
When the user releases the push button 30 the spring 28 acts in expansion and forces the valve stem 26 to move within the longitudinal bore 24 such that the valve head 22 of the valve stem 26 seats against the valve seat 20 sealing off communication through the longitudinal bore 24 between the outside atmosphere and the interior of the pouch (P).
It should be obvious in viewing Figure 3 and 4 that the user can quickly and easily drop the internal retaining nut 32 into the pouch (P) form a hole in the pouch (P) to accommodate the passage of the externally threaded invasive portion 18 therethrough and thread the valve assembly 14 into the internal retaining nut 32 readying the gas vent assembly 10 for use. If desired, the valve assembly 14 can be removed for cleaning while the internal Z14S58~
. .
retaining nut 32 stays within the pouch and the valve assembly 14 can be returned into position through the hole 16 as desired by the user. When the useful life of the pouch (P) has been reached the valve assembly 14 and the internal retaining nut 32 can be removed by snapping off the cap 40 and unthreading the valve assembly 14 so that they can be re-used in another conventional unvented ostomy collection pouch (P) so that the gas disposed therein can be vented to the outside atmosphere.
Referring now to Figure 5, there is shown an alternative embodiment of the present invention. A gas vent assembly 44 includes a valve assembly 46 and a valve mount 48. The valve assembly 46 is essentially the same as the valve assembly shown in Figures 3 and 4 and includes a valve stem 50 bearing a valve head 52 and has a push button 54 frontally mounted on the valve stem 50.
Urging the valve head 52 against the valve seat 56 disposed in an externally threaded invasive portion 58 of the valve assembly 14 is a spring 60. When the valve head 52 is seated against the valve seat 56 no gas can pass through the longitudinal bore 62 of the valve stem 50. When the push button 54 is pushed by the user the valve head 52 moves away from the valve seat 56 and gases can pass through the longitudinal bore 62 of the valve assembly 46. The externally threaded invasive portion 58 of the valve assembly 46 is held in position through a hole 64 in the wall of the pouch (P) by an internal retainer nut 66 which is internally threaded with threads that are compatible with the external threading of the externally threaded invasive portion 58 of the valve assembly 46.
214~S~
.
Also provided to seal a head flange 68 of the externally threaded invasive portion 58 to the internal retainer nut 66 is an O-ring 70 which gets sandwiched between the internal retainer nut 66 and the head flange 68 of the valve assembly 46 when threaded therein. A seal is created between the wall of the pouch (P) and the internal retainer nut 66 by the provision of an annular groove 72 in the internal retainer nut 66. The annular groove 72 is disposed coaxial to the longitudinal axis of the longitudinal bore 62 of the externally threaded portion 58 when the internal retainer nut 66 is disposed thereon and an O-ring 74 is provided to force the material of the wall of the pouch (P) into the annular groove 72 thereby causing an effective seal.
Referring now to Figure 6, there is shown a gas vent assembly 76 which includes a valve mount 78 and a valve assembly 80. The valve assembly 80 is identical in form and function to the valve assemblies 46 and 14 shown, respectively, in Figures 5 and 4 and therefore will not be further described herein. The valve assembly 80 is threadably received in a valve fixture 82. The valve fixture 82 has a longitudinal bore 62 which is threaded to cooperate with the external threads on the valve assembly 80.
To provide a seal between the head flange 84 of the valve assembly 80 and a head flange 86 of the valve fixture 82 there is provided an 0-ring 88. The 0-ring 88 is compressed when the valve assembly 80 is threaded into the valve fixture 82 thereby causing a seal therebetween. The valve fixture 82 has external threads disposed on the outer surface thereof which cooperate with internal 2145S8~
threads of an internal retainer nut 90 disposed within the pouch (P). An O-ring 92 is disposed about the external threads of the valve fixture 82 such that threading the valve fixture 82 into the internal retaining nut 90 causes compression of the O-ring between the head flange 84 and the internal retainer nut 90 so as to cause a seal therebetween and also a seal to the wall of the pouch (P) as shown in Figure 6. This configuration of the subject invention permits fixing the internal retainer nut 90 in position so that it does not move, since it is maintained in position by the valve fixture 82 threaded therein when the valve assembly 80 is removed therefrom.
As a result the valve assembly 80 can be removed for cleaning and there is no difficulty aligning the internal retainer nut 90 with the hole disposed through the wall of the pouch (P) to accommodate the mounting of the gas vent assembly 76 therethrough.
Therefore, the valve assembly 80 can be removed for cleaning with minimal effort.
The one issue which has not been heretofore addressed is how a hole is made in the wall of the pouch (P). This can be made in any convenient manner and can be a rough punched through hole made with a sharp instrument, if desired, since in each configuration as previously described the ultimate seal is made at a point remote to the actual hole. One possibly more elegant method to make the hole is through employment of a self-piercing valve assembly 96 as illustrated in Figure 7. The self-piercing valve assembly 96 is essentially the same as the valve assemblies 80, 46, and 14, - 2145~8~
previously discussed, but also includes a forward piercing portion 98 that has a longitudinal chamber 100 disposed therethrough. The edge 102 of the piercing element 98 of the valve assembly 96 easily and quickly pierces a hole through the wall of the pouch (P) when the valve assembly 96 is threaded into a valve fixture 82 such as illustrated in Figure 6 or an internal retainer nut 32 or 66.
In operation, the various embodiments of the venting valve may readily be affixed to a conventional unvented ostomy bag and attached to a user thereof who may vent the bag whenever he chooses in order to avoid failure of the bag and thereby avoid embarrassment.
(a) TITLE OF THE INVENTION
COLOSTOMY POUCHES WITH VENT VALVE
(b) TECHNICAL FIELD TO WHICH THE INVENTION RELATES
The present invention relates to ostomy collection pouches, and more particularly to means for m~nl-~lly venting ostomy collection pouches into the surrounding atmosphere so that gas build up therein can be released.
BACKGROUND ART
A colostomy is a surgical procedure in which an artificial anus is formed to accommodate persons whose colon has become infected or cancerous and can no longer function. In such cases, the patient is left with no normal bowel function, and a result of the colostomy, body wastes pass through the artificial anus into the colostomy collection bag.
A colostomy can be permanent or temporary, but in either event, the person must use a pouch system to collect bowel wastes. In some cases after the colon is healed, the surgical procedure is reversed for the temporary colostomy user, normal bowel function follows and the pouch is no longer needed. Unrollullately, permanent colostomy users need a pouch for the rest of their lives to handle their body wastes.
Present day colostomy pouches are made of a plastic film. The top portion of thebag includes a hole with an a&esive substance surrounding the hole. This bag is attached to the body of the person - 21~5586 over the artificial anus and the waste is permitted to enter the pouch through the opening. The bottom part of the pouch may be fitted with a clamp assembly were the waste may be removed while the bag is still attached to the user's body.
Presently available pouches have been designed to serve this purpose well. The waste enters the pouch and is held by the clamp assembly. During use gases from the body and the waste start to build up inside the collection pouch and in most instances there is no way for the gas to be released except through the clamp assembly. This gas build up causes the pouch to blow up and become uncomfortable and very bulky. If the gas situation is not relieved within a reasonable time limit the waste and gas build up can be so great as to pull the pouch away from the body where it is adhered and a uncomfortable situation occurs. As a result, present day pouches and systems limit the mobility of pouch users. They become fearful of moving about because of a perceived embarrassment should a pouch be dislodged.
The desirability of fabricating an ostomy collection pouch with a valve has been recognized in United States Patent 4,810,250, issued to Ellenberg, et al. on March 7, 1989, and United States Patent 4,863,447, issued to Smith on September 5, 1989. The gas vent of Ellenberg is either fixably secured to the pouch thereof at the time of manufacture or is inserted through a pre-made opening at the time of manufacture or just prior to use by the user. No means are shown or suggested for removing the valve assembly for cleaning. As to the valve assembly disclosed in Smith, such valve 2~ ~ 5 ~6 assembly is removable from the pouch for cleaning but is taught to cooperate with a special fixture moulded into the bag or affixed thereto at the time of m~mlf~ctl-re Another selectively operable vent is shown in United States Patent 4,366,836, issued to Villari on January 4, 1983. This vent is also affixed to the ostomy bag at the time of m~mlf~ctllre and may not be readily removed for cleaning.
Vents which cooperate with colostomy bags that are specially m~mlf~ctured through co"""u~icating vents are also shown in United States Patent 2,054,535 issued to A.W. Diack on September 15, 1936 and in Offenlegung.~s~hrift 25 57 66 issued to Beiersdorvorf on May 26, 1977. All of the aforementioned venting devices suffer from having to be specially accommodated for in the m~mlf~cture of a colostomy bag and additionally in some i~ es not being readily removable for cleaning, a distinct disadvantage since such valves are likely to foul. Also known in the art are continuously-venting gas vent filter assemblies which have the disadvantage of not only having to be m~nllfactllred with the ostomy appliances but also of suffering from indiscriminate release of gases. Such devices are shown in United States Patent 4,203,445 issued to Jessup, et al. on May 20, 1980; United States Patent 4,211,224, issued to Kubach, et al. on July 8, 1980; United States Patent 4,211,659,issued to Jensen, et. al. on October 25, 1983; Offenlegllng~s~hrift DE 3409527 issued to Beiersdorf on September 19, 1985 and Offenleglmg~scllrift 2,307,063 issued to Virksomheder, et al. on August 23, 1973.
(d) DESCRIPTION OF THE INVENTION
Therefore an object of one aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of the conventional, unvented ostomy 25 collection pouch.
An object of a further aspect of the present invention is to provide a method for in~t~lling a gas vent assembly for venting gas from the interior of a conventional, unvented ostomy collection pouch.
An object of a still further aspect of the present invention is to provide a gas vent 30 assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be easily and quickly removed from the pouch for cleaning and which can be reinstalled therein without disrupting the use of the pouch.
An object of a still another aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be installed on a conventional, unvented ostomy collection pouch by the user.
An object of still another further aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which can be moved from the unvented pouch to another unvented pouch venting the same for continuous use.
An object of another further aspect of the present invention is to provide a gasvent assembly for ostomy collection pouches which can be selectively vented at any time by the user, and which would not release gas unless the user so desires.
An object of another further aspect of the present invention is to provide a vent for ostomy collection pouches which can simply and easily be opened and closed.
An object of an additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which gives the user much more freedom and mobility then presently known to the user so as not to be restricted by travel, work, rest and recreation.
An object of a still additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch so that the pouch does not burst from excess gas.
A object of a still further additional aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which provides the user with peace of mind and flexibility.
An object of an additional still further aspect of the present invention is to provide a gas vent assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch which is simple to design, inexpensive to m~mlf~ctl-re, rugged in construction, easy to use, and efflcient in operation.
~2 ~
By the present invention, in one aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass the~ ough from the 5 interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therc~r~Jugh, and having an input portion for col""~l~nic~ting with the interior of the ostomy collection pouch, an output portion for co~.""~ tin~ with the atmosphere, and reusable mounting means for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, 10 the reusable mounting means releasably ret~ining therein a portion of the m~nll~lly-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for exten~ing through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the internal retainer, means for sealing a portion of the ostomy collection pouch betwen the internal retainer and the valve mount, and means for piercing and puncturing a hole through the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
By the present invention, in another aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, essentially-uniform, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having an input portion for co~ unicating with the interior of the ostomy collection pouch, an output portion for co~",ll~-irating with the atmosphere, and reusable mounting means for A~
6 2 ~ 4~
mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, the reusable mounting means releasably re~ining therein a portion of the m~ml~lly-operable valve assembly so as to position the input portion of the valve assembly proximate a stoma of a user, the mounting means including a valve mount for 5 receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion 10 of the valve mount to the internal rel~ er, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount, and means for piercing and puncturing a hole through the ostomy collection pouch to provide access to the interior thereof and to permit the insertion of the valve assembly therethrough, the piercing means being part of the input portion of the valve assembly.
By one variant of the two above aspects of this invention, the input portion of the valve assembly bears the piercing and puncturing means, the piercing and puncturing means including a sharpened extensive tubular portion integral with the input portion of the valve assembly.
By another variant of the two above aspects of this invention and of a variant thereof, the removable securing means comprises an int~rn~lly-threaded opening which is disposed in the internal retainer, and including complementary external threads which are disposed about the valve.
By yet another variant of the two above aspects of this invention and of variants thereof, the sealing means comprises an annular flange which is provided by the valve mount, and an O-ring which is disposed about the invasive portion thereof, wherein threading of the valve mount into the internal retainer colllpresses the O-ring between the annular flange and the internal retainer, thereby creating a seal with the portion of the ostomy pouch.
By still another variant of the two above aspects of this invention and of variants thereof, the valve assembly comprises threads on the input portion thereof, and wherein 8 ~
the valve mount comprises complçmPnting internal threads in the portion thereof which receives the input portion of the valve assembly, the valve assembly further including an O-ring which is disposed about the threads on the input portion thereof, whereinthreading of the valve assembly into the valve mount conlpresses the O-ring and seals the valve assembly to the valve mount.
By the present invention, in yet another aspect, a manual gas venting assembly is provided for use in venting gas from the interior of a conventional, essentially-unirolnl, unvented ostomy collection pouch to the atmosphere, the assembly comprising a m~ml~lly-operable valve assembly having an open position, which permits gas to pass the~ lllough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing ther~lrough, having an input portion for co",l"ll~ ting with an ostomy collection pouch, the input portion having piercing and puncturing means which are disposed thereon including a sharpened extensive tubular portion which is integral with the input portion of the valve assembly, an output portion for collllllullicating with the atmosphere, and mounting means for mounting the valve assembly to the ostomy collection pouch to provide access to the interior thereof, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer to be disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the intern~l retainer, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount; the mounting means releasablyret~ining therein a portion of the m~nll~lly-operable valve assembly so as to position the input portion thereof proximate a stoma of a user.
By the present invention in yet still another aspect, the combination is provided of a conventional, unvented ostomy collection pouch and a manual gas venting assembly for use in venting gas from the interior of the conventional, unvented ostomy collection pouch to the atmosphere, the combination comprising an ostomy collection pouch, the 7 a ostomy collection pouch being essentially unirollll prior to the mounting of valve assembly and a m~ml~lly-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of the ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough and having an input portion for co""~ ic~ting with the interior of the ostomy collection pouch, the input portion having piercing and puncturing means which is disposed thereon including a sharpened extensive tubular portion which is integral with the input portion of the valve assembly, an output portion for c~nllllullicating with the atmosphere, and mounting means for mounting the valve assembly to the ostomy collection pouch toprovide access to the interior thereof, the mounting means including a valve mount for receiving therein the input portion of the valve assembly, the valve mount having an invasive portion for e~ten~ing through the ostomy collection pouch, thereby providing access to the interior thereof, an internal retainer which is disposed in the interior of the ostomy collection pouch, the internal retainer being for removably-receiving therein the invasive portion of the valve mount, means for removably-securing the invasive portion of the valve mount to the internal retainer, and means for sealing a portion of the ostomy collection pouch between the internal retainer and the valve mount; whereby, themounting means releasably retains therein a portion of the m~ml~lly-operable valve assembly so as to position the input portion thereof proximate a stoma of a user.
(e) DESCRIPTION OF THE FIGURES
In the accompanying drawings, Figure 1 is a pictorial representation of an ostomy collection pouch incorporating the principles of aspects of the present invention just prior to mounting on a cooperating flange over a stoma of a patient;
Figure 2 is a pictorial feprese~ lion of an ostomy collection pouch incorporating the principles of aspects of the present invention installed and in use;
Figure 3 is a elevational view of one embodiment of one aspect of the present invention;
Figure 4 is a cross-sectional view taken along the lines 4-4 of Figure 3;
7 b Figure 5 is a cross-sectional view of a second embodiment of an aspect of the present invention;
Figure 6 is a cross-sectional view of still another embodiment of an aspect of the present invention; and Figure 7 is a cross-sectional view of a self-piercing valve assembly constructedin accordance with the principles of aspects of the present invention.
(f~ AT LEAST ONE MODE FOR CARRYING OUT THE I~IVENTION
Referring now to the Figures, and more particularly, to Figures 1 and 2, there is illustrated a disposable or reusable A~
. .
21~86 ostomy collection pouch (P) having an essentially-uniform wall thickness for mounting on an adhesive backed flange (F). The adhesive backed flange (F) is adhered to the skin of the user (V) in such a position that the stoma (S) of the user is surrounded by a central opening provided in the adhesive backed flange (F). The flange (F) provides a mount (M) which is adapted to cooperate with a cooperation mount (CM) disposed on the pouch (P). The pouch (P) is of a conventional unvented design and has mounted thereon a gas vent assembly 10 constructed in accordance with the principles of the present invention. The gas vent assembly 10 includes a mount 12 and a valve assembly 14 as will hereinafter be described in detail. The gas vent assembly is further illustrated in Figures 3 and 4 of the drawing.
Referring now to Figures 3 and 4, there is shown the gas vent assembly 10 which includes a mount 12 for affixing the valve assembly 14 to a pouch (P) only a portion of which is shown. A hole 16 has been made to clear a selected portion of the wall of the pouch (P) and inserted therethrough is the valve assembly 14. The valve assembly 14 includes an externally-threaded invasive portion 18 which is essentially tubular in shape and terminates in an enlarged head 21 in which is provided a reservoir 23 adapted to receive an absorbent pad 25. The pad 25 may be used for an antiseptic and/or a deodorant, and has disposed therein a valve seat 20. The valve seat 20 is dimensioned 2145~86 to cooperate with a valve head Z4 which, when in contact with the valve seat 20, allows zero passage of gas through a longitudinal bore 24 disposed in the invasive portion 18.
The valve head 22 is borne by a valve stem 26 biased in 8a 21~5~86 position by a spring 28. The spring 28 is biased so that it pulls the valve head 22 against the valve seat 20 when at rest.
Threadably affixed to the valve stem 26 is a push button 30 which compresses the spring 28 and forces the valve head 22 away from the seat 20 by moving the valve stem 26 within the longitudinal bore . 4 when pressure is applied to push button 30. When the push button is released as a result of the pressure of the spring 28 the valve head again is seated in the valve seat 20 and the longitudinal bore 24 is closed off.
The externally threaded invasive portion 18 of the valve assembly 14 is retained in position through the hole 16 in the pouch (P) by an internal retaining nut 32. The internal retaining nut 32 is threaded with threads complimentary to those on the externally threaded valve portion 18. An 0-ring 34 is disposed coaxially about the longitudinal axis of the externally threaded invasive portion 18 such that when the externally threaded invasive portion 18 is threaded into the internal retaining nut 32 the 0-ring forms a seal between a head flange 36 of the externally threaded invasive portion 18 and the internal retaining nut 32.
The 0-ring can also serve as a means for sealing the wall of the pouch (P) to the gas vent assembly 10. However, to guarantee such seal an internal retaining nut 32 has disposed therein an annular groove 38. The annular groove 38 is disposed perpendicular to the longitudinal axis of the externally threaded valve portion 18 and receives therein the wall material of the pouch (P) as illustrated.
Clamping and sealing the wall of the pouch (P) in place about the ~ 21~8fi gas vent assembly 10 is a cap 40, which has an internally extending annular ridge 42. When the wall of the pouch (P) is placed over the internal retaining nut 32 and the cap 40 is snapped into position so that the internally extending annular ring 42 is seated in the annular groove 38 of the internal retaining nut 32 a seal is formed between the wall of the pouch (P) and the gas vent assembly lO effectively sealing the interior of the pouch (P) from the outside atmosphere. When the user presses on the push button 30 mounted on the valve stem 26 the valve head 22 moves away from the valve seat 20 as a result of the compression of the spring 28 and the longitudinal bore 24 of the externally threaded invasive portion 18 permits communication between the interior of the pouch and the outside atmosphere.
When the user releases the push button 30 the spring 28 acts in expansion and forces the valve stem 26 to move within the longitudinal bore 24 such that the valve head 22 of the valve stem 26 seats against the valve seat 20 sealing off communication through the longitudinal bore 24 between the outside atmosphere and the interior of the pouch (P).
It should be obvious in viewing Figure 3 and 4 that the user can quickly and easily drop the internal retaining nut 32 into the pouch (P) form a hole in the pouch (P) to accommodate the passage of the externally threaded invasive portion 18 therethrough and thread the valve assembly 14 into the internal retaining nut 32 readying the gas vent assembly 10 for use. If desired, the valve assembly 14 can be removed for cleaning while the internal Z14S58~
. .
retaining nut 32 stays within the pouch and the valve assembly 14 can be returned into position through the hole 16 as desired by the user. When the useful life of the pouch (P) has been reached the valve assembly 14 and the internal retaining nut 32 can be removed by snapping off the cap 40 and unthreading the valve assembly 14 so that they can be re-used in another conventional unvented ostomy collection pouch (P) so that the gas disposed therein can be vented to the outside atmosphere.
Referring now to Figure 5, there is shown an alternative embodiment of the present invention. A gas vent assembly 44 includes a valve assembly 46 and a valve mount 48. The valve assembly 46 is essentially the same as the valve assembly shown in Figures 3 and 4 and includes a valve stem 50 bearing a valve head 52 and has a push button 54 frontally mounted on the valve stem 50.
Urging the valve head 52 against the valve seat 56 disposed in an externally threaded invasive portion 58 of the valve assembly 14 is a spring 60. When the valve head 52 is seated against the valve seat 56 no gas can pass through the longitudinal bore 62 of the valve stem 50. When the push button 54 is pushed by the user the valve head 52 moves away from the valve seat 56 and gases can pass through the longitudinal bore 62 of the valve assembly 46. The externally threaded invasive portion 58 of the valve assembly 46 is held in position through a hole 64 in the wall of the pouch (P) by an internal retainer nut 66 which is internally threaded with threads that are compatible with the external threading of the externally threaded invasive portion 58 of the valve assembly 46.
214~S~
.
Also provided to seal a head flange 68 of the externally threaded invasive portion 58 to the internal retainer nut 66 is an O-ring 70 which gets sandwiched between the internal retainer nut 66 and the head flange 68 of the valve assembly 46 when threaded therein. A seal is created between the wall of the pouch (P) and the internal retainer nut 66 by the provision of an annular groove 72 in the internal retainer nut 66. The annular groove 72 is disposed coaxial to the longitudinal axis of the longitudinal bore 62 of the externally threaded portion 58 when the internal retainer nut 66 is disposed thereon and an O-ring 74 is provided to force the material of the wall of the pouch (P) into the annular groove 72 thereby causing an effective seal.
Referring now to Figure 6, there is shown a gas vent assembly 76 which includes a valve mount 78 and a valve assembly 80. The valve assembly 80 is identical in form and function to the valve assemblies 46 and 14 shown, respectively, in Figures 5 and 4 and therefore will not be further described herein. The valve assembly 80 is threadably received in a valve fixture 82. The valve fixture 82 has a longitudinal bore 62 which is threaded to cooperate with the external threads on the valve assembly 80.
To provide a seal between the head flange 84 of the valve assembly 80 and a head flange 86 of the valve fixture 82 there is provided an 0-ring 88. The 0-ring 88 is compressed when the valve assembly 80 is threaded into the valve fixture 82 thereby causing a seal therebetween. The valve fixture 82 has external threads disposed on the outer surface thereof which cooperate with internal 2145S8~
threads of an internal retainer nut 90 disposed within the pouch (P). An O-ring 92 is disposed about the external threads of the valve fixture 82 such that threading the valve fixture 82 into the internal retaining nut 90 causes compression of the O-ring between the head flange 84 and the internal retainer nut 90 so as to cause a seal therebetween and also a seal to the wall of the pouch (P) as shown in Figure 6. This configuration of the subject invention permits fixing the internal retainer nut 90 in position so that it does not move, since it is maintained in position by the valve fixture 82 threaded therein when the valve assembly 80 is removed therefrom.
As a result the valve assembly 80 can be removed for cleaning and there is no difficulty aligning the internal retainer nut 90 with the hole disposed through the wall of the pouch (P) to accommodate the mounting of the gas vent assembly 76 therethrough.
Therefore, the valve assembly 80 can be removed for cleaning with minimal effort.
The one issue which has not been heretofore addressed is how a hole is made in the wall of the pouch (P). This can be made in any convenient manner and can be a rough punched through hole made with a sharp instrument, if desired, since in each configuration as previously described the ultimate seal is made at a point remote to the actual hole. One possibly more elegant method to make the hole is through employment of a self-piercing valve assembly 96 as illustrated in Figure 7. The self-piercing valve assembly 96 is essentially the same as the valve assemblies 80, 46, and 14, - 2145~8~
previously discussed, but also includes a forward piercing portion 98 that has a longitudinal chamber 100 disposed therethrough. The edge 102 of the piercing element 98 of the valve assembly 96 easily and quickly pierces a hole through the wall of the pouch (P) when the valve assembly 96 is threaded into a valve fixture 82 such as illustrated in Figure 6 or an internal retainer nut 32 or 66.
In operation, the various embodiments of the venting valve may readily be affixed to a conventional unvented ostomy bag and attached to a user thereof who may vent the bag whenever he chooses in order to avoid failure of the bag and thereby avoid embarrassment.
Claims (8)
1. A manual gas venting assembly for use in venting gas from the interior of a conventional, unvented ostomy collection pouch to the atmosphere comprising:
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, b) an output portion for communicating with the atmosphere, and c) reusable mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said reusable mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion of said valve assembly proximate a stoma of a user, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of the ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount; and B. means for piercing and puncturing a hole through said ostomy collection pouch to provide access to the interior thereof and to permit the insertion of said valve assembly therethrough, said piercing means being part of said input portion of said valve assembly.
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, b) an output portion for communicating with the atmosphere, and c) reusable mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said reusable mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion of said valve assembly proximate a stoma of a user, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of the ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount; and B. means for piercing and puncturing a hole through said ostomy collection pouch to provide access to the interior thereof and to permit the insertion of said valve assembly therethrough, said piercing means being part of said input portion of said valve assembly.
2. A manual gas venting assembly for use in venting gas from the interior of a conventional, essentially-uniform, unvented ostomy collection pouch to the atmosphere comprising:
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, b) an output portion for communicating with the atmosphere, and c) reusable mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said reusable mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion of said valve assembly proximate a stoma of a user, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of the ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount; and B. means for piercing and puncturing a hole through said ostomy collection pouch to provide access to the interior thereof and to permit the insertion of said valve assembly therethrough, said piercing means being part of said input portion of said valve assembly.
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, b) an output portion for communicating with the atmosphere, and c) reusable mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said reusable mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion of said valve assembly proximate a stoma of a user, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of the ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount; and B. means for piercing and puncturing a hole through said ostomy collection pouch to provide access to the interior thereof and to permit the insertion of said valve assembly therethrough, said piercing means being part of said input portion of said valve assembly.
3. The manual gas venting assembly in accordance with claim 1 or claim 2, wherein said input portion of said valve assembly bears said piercing and puncturing means, said piercing and puncturing means including a sharpened extensive tubular portion which is integral with said input portion of said valve assembly.
4. The manual gas venting assembly in accordance with claim 1, claim 2 or claim 3, wherein said removable securing means comprises an internally-threaded opening which is disposed in said internal retainer, and including complementary external threads which are disposed about said valve.
5. The manual gas venting assembly in accordance with claims 1 to 4, wherein said sealing means comprises an annular flange which is provided by said valve mount, and an O-ring which is disposed about said invasive portion thereof, wherein threading of said valve mount into said internal retainer compresses said O-ring between said annular flange and said internal retainer, thereby creating a seal with said portion of said ostomy pouch.
6. The manual gas venting assembly in accordance with claims 1 to 5, wherein said valve assembly comprises threads on said input portion thereof, and wherein said valve mount comprises complementing internal threads in the portion thereof which receives said input portion of said valve assembly, said valve assembly further including an O-ring which is disposed about said threads on said input portion thereof, wherein threading of said valve assembly into said valve mount compresses said O-ring and seals said valve assembly to said valve mount.
7. A manual gas venting assembly for use in venting gas from the interior of a conventional, essentially-uniform, unvented ostomy collection pouch to the atmosphere comprising:
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, having:
a) an input portion for communicating with an ostomy collection pouch, said input portion having piercing and puncturing means which are disposed thereon, including a sharpened extensive tubular portion which is integral with said input portion of said valve assembly, b) an output portion for communicating with the atmosphere, and c) mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of said ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount;
said mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion thereof proximate a stoma of a user.
A. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of an ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough, having:
a) an input portion for communicating with an ostomy collection pouch, said input portion having piercing and puncturing means which are disposed thereon, including a sharpened extensive tubular portion which is integral with said input portion of said valve assembly, b) an output portion for communicating with the atmosphere, and c) mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to the interior thereof, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through the ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer to be disposed in the interior of said ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount;
said mounting means releasably retaining therein a portion of said manually-operable valve assembly so as to position said input portion thereof proximate a stoma of a user.
8. The combination of a conventional, unvented ostomy collection pouch and a manual gas venting assembly for use in venting gas from the interior of said conventional, unvented ostomy collection pouch to the atmosphere, said combination comprising:
A. an ostomy collection pouch, said ostomy collection pouch being essentially uniform prior to the mounting of valve assembly; and B. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of said ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, said input portion having piercing and puncturing means which is disposed thereon including a sharpened extensive tubular portion which is integral with said input portion of said valve assembly, b) an output portion for communicating with the atmosphere, and c) mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to said interior thereof, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through said ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer which is disposed in the interior of said ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount;
whereby, said mounting means releasably retains therein a portion of said manually-operable valve assembly so as to position said input portion thereof proximate a stoma of a user.
A. an ostomy collection pouch, said ostomy collection pouch being essentially uniform prior to the mounting of valve assembly; and B. a manually-operable valve assembly having an open position, which permits gas to pass therethrough from the interior of said ostomy collection pouch to the atmosphere, and a normally-closed position for preventing gas from passing therethrough and having:
a) an input portion for communicating with the interior of said ostomy collection pouch, said input portion having piercing and puncturing means which is disposed thereon including a sharpened extensive tubular portion which is integral with said input portion of said valve assembly, b) an output portion for communicating with the atmosphere, and c) mounting means for mounting said valve assembly to said ostomy collection pouch to provide access to said interior thereof, said mounting means including:
i) a valve mount for receiving therein said input portion of said valve assembly, said valve mount having an invasive portion for extending through said ostomy collection pouch, thereby providing access to the interior thereof, ii) an internal retainer which is disposed in the interior of said ostomy collection pouch, said internal retainer being for removably-receiving therein said invasive portion of said valve mount, iii) means for removably-securing said invasive portion of said valve mount to said internal retainer, and iv) means for sealing a portion of said ostomy collection pouch between said internal retainer and said valve mount;
whereby, said mounting means releasably retains therein a portion of said manually-operable valve assembly so as to position said input portion thereof proximate a stoma of a user.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23888494A | 1994-05-06 | 1994-05-06 | |
| US08/238,884 | 1994-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2145586A1 CA2145586A1 (en) | 1995-11-07 |
| CA2145586C true CA2145586C (en) | 1999-06-01 |
Family
ID=22899721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2145586 Expired - Fee Related CA2145586C (en) | 1994-05-06 | 1995-03-27 | Colostomy pouches with vent valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2145586C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9927135D0 (en) | 1999-11-17 | 2000-01-12 | Wood Michael | Ostomy patches |
-
1995
- 1995-03-27 CA CA 2145586 patent/CA2145586C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2145586A1 (en) | 1995-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |