A tamper-indicating, self-sealing disposable pouch is disclosed which is readily adaptable for use for sterilization and sterility maintenance of medical articles and the like. The pouch includes first and second coextensive webs which are at least partially joined together to define the interior of
A tamper-indicating, self-sealing disposable pouch is disclosed which is readily adaptable for use for sterilization and sterility maintenance of medical articles and the like. The pouch includes first and second coextensive webs which are at least partially joined together to define the interior of the pouch. The pouch defines an access opening through which the contents of the pouch can be inserted therein, with the pouch uniquely including a laminate adhesive structure in association with the access opening for effecting closing and sealing thereof. The adhesive structure comprises an adhesive carrier member having first and second layers of adhesive on opposite surfaces thereof. The adhesive of the adhesive layers is selected to have an effective adhesive strength greater than the cohesive strength of the adhesive carrier member such that any attempt to reopen the access opening after it has been closed and sealed with the adhesive structure results in delamination of the adhesive structure for tamper-indication.
대표청구항▼
1. A tamper-indicating, self-sealing pouch, comprising: first and second generally coextensive webs at least partially marginally joined together to define the interior of said pouch; access opening means defined by said pouch for providing access to the interior of said pouch comprising an elon
1. A tamper-indicating, self-sealing pouch, comprising: first and second generally coextensive webs at least partially marginally joined together to define the interior of said pouch; access opening means defined by said pouch for providing access to the interior of said pouch comprising an elongated access opening defined by said first pouch web; and laminate adhesive sealing means on said pouch in association with said opening means for closing and sealing said access opening means, said adhesive sealing means comprising a laminate of adhesive carrier means having first and second adhesive means on opposite sides thereof, said first adhesive means being adhered to said first of said pouch webs for maintaining said laminate adhesive means on said pouch, and said second adhesive means being adapted to effect the closing and sealing of said access opening means such that if said access opening means is opened after being closed and sealed by said second adhesive means, said laminate adhesive means delaminates to indicate opening; said laminate adhesive means being positioned on said first web on opposite sides of said access opening such that said pouch can be folded to bring said second adhesive means into confronting relation with itself to effect closing and sealing of said access opening with an adhesive-to-adhesive seal. 2. A tamper-indicating, self-sealing pouch in accordance with claim 1, wherein the effective adhesive strength of each of said first and second adhesive means is greater than the cohesive strength of said adhesive carrier means, whereby said laminate adhesive means is adapted to delaminate by rupture of said adhesive carrier means. 3. A tamper-indicating, self-sealing pouch in accordance with claim 2, wherein said adhesive carrier means comprises paper, and each of said first and second adhesive means comprises a pressure-sensitive adhesive. 4. A tamper-indicating, self-sealing pouch in accordance with claim 1, including means apart from said access opening for opening said pouch after said access opening is closed and sealed by said second adhesive means. 5. A tamper-indicating, self-sealing pouch in accordance with claim 1, wherein said first and second pouch webs are each generally rectangular and each comprises plastic film, the opposite lateral marginal edges of said first and second webs being joined together by heat seal means, said access opening extending transversely of said first web generally adjacent one end of said pouch. 6. A tamper-indicating, self-sealing pouch in accordance with claim 5, including means for opening said pouch after said access opening has been closed and sealed by said second adhesive means comprising a tear notch defined by said first and second webs on at least one marginal edge of said pouch intermediate the ends thereof. 7. A tamper-indicating self-sealing pouch in accordance with claim 1, wherein said adhesive carrier means comprises a paper member, said first and second adhesive means respectively comprising first and second pressure-sensitive adhesive layers on opposite surfaces of said paper member, said first adhesive layer adhesively affixing said laminate adhesive means to said first pouch web, and said second adhesive layer being adapted to seal and close said access opening, said laminate adhesive means defining another opening in alignment with said access opening such that said laminate adhesive means is positioned about and adjacent to said access opening and said access opening is accessible through said laminate adhesive means prior to sealing of said access opening. 8. A tamper-indicating, self-sealing pouch in accordance with claim 7, including removable release paper means covering said second adhesive layer, said release paper means defining a further opening in alignment with said access opening. 9. A tamper-indicating, self-sealing pouch in accordance with claim 1, wherein said laminate adhesive means comprises a pair of laminate adhesive structures positioned on said first pouch web on respective opposite sides of said access slit, each said laminate adhesive structure including said adhesive carrier means and said first and second adhesive means on opposite sides of the respective carrier means such that said access slit can be closed and sealed by folding said pouch to bring the second adhesive means of said laminate adhesive structures into confronting relation with each other. 10. A tamper-indicating, self-sealing pouch, comprising: first and second rectangular, generally coextensive plastic film webs joined together along all of the marginal edge portions thereof to define the interior of said pouch; access slit means defined by said first web, generally adjacent one end thereof for providing access to the interior of said pouch, said access slit means extending generally transversely of said pouch; and laminate adhesive means positioned on said first web about said access slit means, said laminate adhesive means comprising a paper adhesive carrier member having first and second pressure-sensitive adhesive layers on opposite sides thereof, said first adhesive layer adhesively affixing said laminate adhesive means to said first web, said laminate adhesive means being adapted to close and seal said access slit means by folding said pouch to bring said second pressure-sensitive adhesive layer into confronting relation with itself to seal said access slit means with an adhesive-to-adhesive seal; said paper adhesive carrier having a cohesive strength less than the effective adhesive strength of each of said first and second pressure-sensitive adhesive layers so that said laminate adhesive means is adapted to delaminate by rupture of said paper carrier if said access slit means is opened after the slit means have been sealed with said second pressure-sensitive adhesive layer. 11. A tamper-indicating, self-sealing pouch in accordance with claim 10, including removable release paper means for covering said second pressure-sensitive adhesive layer, said release paper means defining an opening in alignment with said access slit means. 12. A tamper-indicating self-sealing pouch in accordance with claim 11, including means for opening said pouch after said access slit means has been sealed by said second pressure-sensitive adhesive means comprising a tear notch defined by said first and second pouch webs on at least one of the lateral marginal edges of said pouch. 13. A tamper-indicating, self-sealing pouch in accordance with claim 12, wherein said first and second pouch webs comprise a single piece of plastic film material folded onto itself to provide said generally coextensive first and second pouch webs. 14. A tamper-indicating, self-sealing pouch, comprising: first and second generally coextensive, rectangular pouch webs at least partially marginally joined together to define the interior of said pouch; access opening means defined by said pouch generally adjacent one end thereof for providing access to the interior of said pouch for insertion of an article therein; laminate adhesive sealing means affixed to said pouch in association with said access opening means for closing and sealing said opening means, said laminate adhesive means comprising a paper adhesive carrier member and first and second layers of pressure-sensitive adhesive disposed on respective opposite sides of said adhesive carrier member, said first adhesive layer affixing said laminate adhesive means to said pouch, and said second adhesive layer being adapted to close and seal said access opening means when said pouch is folded onto itself, said first and second adhesive layers comprising adhesive having an effective adhesive strength greater than the cohesive strength of said adhesive carrier member so that opening of said access opening means after it has been closed and sealed results in delamination of said laminate adhesive structure by rupture of said adhesive carrier member to indicate tampering; and means apart from said access opening means for opening said pouch after said access opening means have been closed and sealed. 15. A tamper-indicating, self-sealing pouch in accordance with claim 14, wherein said first and second pouch webs each comprise transparent plastic film, said opening means apart from said access opening means comprising a tear notch defined by the joined together respective lateral edge portions of said first and second plastic film pouch webs.
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