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US3971378A Expired / Lapsed US ⏱️ 0.0 years remaining

Expansible tampon

Assignee: Ortho Pharmaceutical Corp
•
Filing: 1974-12-20
•
Granted: 1976-07-27
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Expires: 1994-12-20
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Abstract

Abstract A tampon which is expansible in the vagina, once inserted, for improved absorbence of menstrual fluid, particularly in post-partum women. The tampon includes an absorbent member and a core embedded within the absorbent member and constructed to expand the absorbent member so that it closely conforms to the shape of the vaginal wall. Initially, the absorbent member and core are compressed and snugly positioned within a tubular applicator which is used to guide the insertion of the tampon into the vagina. In the compressed position, the lateral extent of the leading end of the absorbent member, the end thereof to be positioned adjacent the cervix, is approximately the same as the lateral extent of the opposite end of the absorbent member. Once the tampon is discharged from the applicator, the core expands the absorbent member from the compressed position to a relaxed position where the end of the absorbent member nearest the cervix is wider than the end of the absorbent member facing the exterior of the vagina.

Inventors

  • 👤 Kermit E. Krantz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 21:01
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; Y; Y10; Y10S; Y10S604/00; Y10S604/904

Claims Analysis

Total Claims: 34
Claim 1
Independent Claim 241 words
A tampon comprising: an axially elongated, unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 2
Dependent Claim 241 words
A tampon comprising: an axially elongated, unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 3
Dependent Claim 17 words
A tampon as claimed in claim 1 wherein said absorbent member is comprised of a cellulosic material.
Claim 4
Dependent Claim 16 words
A tampon as claimed in claim 1 wherein said absorbent member has an oval cross-sectional shape.
Claim 5
Dependent Claim 16 words
A tampon as claimed in claim 3 wherein said core is formed of a non-absorbent material.
Claim 6
Dependent Claim 22 words
A tampon as claimed in claim 1 wherein said spreader means is a core embedded within the center of said absorbent member.
Claim 7
Dependent Claim 22 words
A tampon as claimed in claim 5 wherein said core contains a plurality of voids to facilitate passage of fluids being absorbed.
Claim 8
Dependent Claim 16 words
A tampon as claimed in claim 5 wherein said core is formed of a polymeric material.
Claim 9
Dependent Claim 12 words
A tampon as claimed in claim 7 wherein said material is polyethylene.
Claim 10
Dependent Claim 28 words
A tampon as claimed in claim 5 wherein a string is attached to both said absorbent member and said core to facilitate removal of said tampon after use.
Claim 11
Dependent Claim 27 words
A tampon as claimed in claim 5 wherein said absorbent member in said relaxed position is generally uniformly tapered between said leading end and said trailing end.
Claim 12
Dependent Claim 57 words
A tampon as claimed in claim 5 wherein said core extends generally from end to end of said absorbent member, the end of said core adjacent the leading end of said absorbent member being wider than the end of the core adjacent the trailing end of the absorbent member in both the compressed and relaxed positions. and
Claim 13
Dependent Claim 207 words
A tampon comprising a unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, spreader means disposed within said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means being a core embedded within the center of said absorbent member, said core having a plurality of elongated generally flat portions longitudinally folded over upon themselves, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said tampon adapted to expand and conform to the shape of the most distendsible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 14
Dependent Claim 207 words
A tampon comprising a unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, spreader means disposed within said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means being a core embedded within the center of said absorbent member, said core having a plurality of elongated generally flat portions longitudinally folded over upon themselves, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said tampon adapted to expand and conform to the shape of the most distendsible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 15
Dependent Claim 15 words
The tampon of claim 12 wherein said absorbent member is comprised of a cellulosic material.
Claim 16
Dependent Claim 16 words
A tampon as claimed in claim 1 wherein said spreader means and absorbent member are unitary.
Claim 17
Dependent Claim 335 words
A tampon comprising: an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, said unitary absorbent member being generally oval in cross-sectional shape; axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said absorbent member tapering generally uniformly from said leading end to said trailing end in the relaxed position, said spreader means being defined by a core embedded within the center of said absorbent member and extending generally from end to end thereof, said core being formed of a material having an inherent elastic memory and being extensible to distend said absorbent member in the relaxed position, and means attached to both said absorbent member and said core for removing the tampon from the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 18
Dependent Claim 335 words
A tampon comprising: an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, said unitary absorbent member being generally oval in cross-sectional shape; axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said absorbent member tapering generally uniformly from said leading end to said trailing end in the relaxed position, said spreader means being defined by a core embedded within the center of said absorbent member and extending generally from end to end thereof, said core being formed of a material having an inherent elastic memory and being extensible to distend said absorbent member in the relaxed position, and means attached to both said absorbent member and said core for removing the tampon from the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman.
Claim 19
Dependent Claim 314 words
In Combination: a tampon including an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position; and an applicator for inserting the tampon into the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman, said applicator including a tubular member having said tampon removably positioned therein, the wall of said tubular member retaining said core in said compressed position, said applicator further including a plunger mounted for movement axially of said tubular member and engageable with the trailing end of said absorbent member for discharging the tampon from the tubular member and into the vagina.
Claim 20
Dependent Claim 314 words
In Combination: a tampon including an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being disposed in axial alignment with said leading end, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the spreader means being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position; and an applicator for inserting the tampon into the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman, said applicator including a tubular member having said tampon removably positioned therein, the wall of said tubular member retaining said core in said compressed position, said applicator further including a plunger mounted for movement axially of said tubular member and engageable with the trailing end of said absorbent member for discharging the tampon from the tubular member and into the vagina.
Claim 21
Dependent Claim 14 words
The combination of claim 16 wherein said tubular member is oval in cross section.
Claim 22
Dependent Claim 18 words
The combination of claim 17 wherein said absorbent member is oval in cross section in the compressed position.
Claim 23
Dependent Claim 406 words
In combination: a tampon including an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being in axial alignment with said leading end, said unitary absorbent member being generally oval in cross-sectional shape, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the absorbent member being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said absorbent member tapering generally uniformly from said leading end to said trailing end in the relaxed position, said spreader means being defined by a core embedded within the center of said absorbent member and extending generally from end to end thereof, said core being formed of a material having an inherent elastic memory and being extensible to distend said absorbent member in the relaxed position, means attached to both said absorbent member and said core for removing the tampon from the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman; and an applicator for inserting the tampon into the vagina, said applicator including a tubular member having said tampon removably positioned therein, the wall of said tubular member retaining said core in said compressed position, said applicator further including a plunger mounted for movement axially of said tubular member and engageable with the trailing end of said absorbent member for discharging the tampon from the tubular member and into the vagina.
Claim 24
Dependent Claim 406 words
In combination: a tampon including an axially elongated unitary absorbent member adapted to be inserted into the vagina with the leading end facing the cervix and disposed in close proximity thereto and the trailing end facing the exterior of the vagina, said trailing end being in axial alignment with said leading end, said unitary absorbent member being generally oval in cross-sectional shape, axially elongated spreader means disposed within and surrounded by said unitary absorbent member for expanding said absorbent member from a compressed position for insertion of the tampon into the vagina to a relaxed position which is assumed after insertion of the tampon into the vagina, said spreader means having a leading end facing the leading end of the absorbent member and a trailing end facing the trailing end of the absorbent member, the trailing end of the absorbent member being disposed in axial alignment with the leading end thereof, the lateral extent of the leading end of the absorbent member being approximately equal to the lateral extent of the trailing end of the absorbent member in the compressed position, and the lateral extent of the leading end of the absorbent member being larger than the lateral extent of the trailing end of the absorbent member in the relaxed position, said absorbent member tapering generally uniformly from said leading end to said trailing end in the relaxed position, said spreader means being defined by a core embedded within the center of said absorbent member and extending generally from end to end thereof, said core being formed of a material having an inherent elastic memory and being extensible to distend said absorbent member in the relaxed position, means attached to both said absorbent member and said core for removing the tampon from the vagina, said tampon adapted to expand and conform to the shape of the most distensible portion of the vagina upon insertion of said tampon therein, said tampon being sufficiently absorbent so as to be adapted for use in a post partum woman; and an applicator for inserting the tampon into the vagina, said applicator including a tubular member having said tampon removably positioned therein, the wall of said tubular member retaining said core in said compressed position, said applicator further including a plunger mounted for movement axially of said tubular member and engageable with the trailing end of said absorbent member for discharging the tampon from the tubular member and into the vagina.
Claim 25
Dependent Claim 14 words
The combination of claim 19 wherein said tubular member is oval in cross section.
Claim 26
Dependent Claim 18 words
The combination of claim 20 wherein said absorbent member is oval in cross section in the compressed position.
Claim 27
Dependent Claim 14 words
The tampon of claim 12 wherein said absorbent member has an oval cross-sectional shape.
Claim 28
Dependent Claim 14 words
The tampon of claim 12 wherein said core is formed of a non-absorbent material.
Claim 29
Dependent Claim 20 words
The tampon of claim 12 wherein said core contains a plurality of voids to facilitate passage of fluids being absorbed.
Claim 30
Dependent Claim 14 words
The tampon of claim 12 wherein said core is formed of a polymeric material.
Claim 31
Dependent Claim 10 words
The tampon of claim 25 wherein said material is polyurethane.
Claim 32
Dependent Claim 26 words
The tampon of claim 12 wherein a string is attached to both said absorbent member and said core to facilitate removal of said tampon after use.
Claim 33
Dependent Claim 25 words
The tampon of claim 12 wherein said absorbent member in said relaxed position is generally uniformly tapered between said leading end and said trailing end.
Claim 34
Dependent Claim 54 words
The tampon of claim 12 wherein said core extends generally from end to end of said absorbent member, the end of said core adjacent the leading end of said absorbent member being wider than the end of the core adjacent the trailing end of the absorbent member in both the compressed and relaxed positions.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-07-27 1980-01-26 1980-07-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-07-27 1984-01-26 1984-07-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-07-27 1988-01-26 1988-07-27 $7700.00 Window Closed / Lapsed

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