Tampon

• US 4,486,191 A
• Filed: 08/12/1982
• Issued: 12/04/1984
• Est. Priority Date: 08/12/1982
• Status: Expired due to Fees

• Current Assignee: Technology Unlimited Incorporated
• Original Assignee: Technology Unlimited Incorporated
• Inventors: Jacob, Joseph
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US06/407,468
• Time in Patent Office: 845 Days
• Field of Search: 604/330, 604/317, 604/328
• US Class Current: 604/330
• CPC Class Codes: A61F 13/2051 characterised by the material or the structure of the inner absorbing core
• CPC Class Codes: A61F 13/26 Means for inserting tampons , i.e. applicators
• CPC Class Codes: A61F 13/34 Means for withdrawing tampons , e.g. withdrawal strings

Abstract

A catamenial device which is a tampon having a hollow or loosely packed central area and a forward end which flares open to a funnel configuration upon insertion into the vaginal tract of the user to cap the cervix and thereby direct menstrual fluid into the interior thereof. The tampon is removed by pulling a drawstring which is also a pursing string. The string first closes the forward end before exerting removal force on the tampon. Also, the body of the tampon is encased in a fluid barrier so that fluid is captured and retained within the tampon and absorption by the tampon from the vaginal wall is prevented.

Claims

1. A tampon, comprising:

an elongated body of absorbent material encapsulated in a moisture barrier;

said body having a forward end terminating in a parameter wall;

means for spreading the forward end perimeter wall of said body to an open funnel configuration;

separate means for drawing the forward end perimeter wall of said body in an inward direction toward the center of the body, whereby the body forward end is opened upon insertion into the vagina of a menstruating female user such that the forwad end of the body in the open position essentially caps the cervix of such user and then is drawn closed to entrap menstrual fluid within the absorbent body.

4. A tampon as described in claim 1, the means for spreading the forward end of the elongated body into an open funnel configuration comprising:

an insertion tube;

an elongated body residing within said insertion tube; and

a tie means membrane encasing the forward end and attached to the tube, the tie means membrane being of restricted length to thereby cause the forward end of the elongated body to roll outwardly to an open funnel configuration as the elongated body is ejected forwardly from the insertion tube and such tie means membrane having a break-away area for separation of the elongated body from the insertion tube.

2. A tampon device for the efficient entrapment of menstrual fluid, comprising:

an elongated body of fluid absorbent material;

said elongated body having a forward end and characterized by a central area which collects and holds menstrual fluid;

an insertion tube, the elongated body housed in the tube;

a plunger means for driving the elongated body in a forward directon from the insertion tube;

the forward end of said elongated body having an annular wall operable between an open funnel configuration and a closed pursed condition wherein said annular wall is drawn inwardly and downwardly towards the central axis of the elongated body;

a tie means of limited length connecting the insertion tube outer wall to the elongated body annular wall for limiting the outward movement of said elongated body annular wall as the body is ejected from said insertion tube, whereby the annular wall is caused to flair to the open funnel configuration;

means for severance of the tie means upon full opening of said forward end to the funnel configuration; and

draw means for the first reversing said flared annular wall of said tubular body to a closed, pursed configuration and then exerting a drive force for expulsion of said elongated body applied through the central cavity of said elongated body.

5. A tampon device as described in claim 2, the draw means being a pursing string hemmed into a channel encompassing the forward end of the elongated body, the string bridging the open funnel configuration to limit the extent of funnel opening induced by the tie means.

6. A tampon device as described in claim 5, a draw string attached to the center of the pursing string and passing through the central cavity of the elongated body and out the bottom thereof, for causing the pursing of the forward end of said elongated body and to aid in withdrawal of such device from user.

7. As tampon device as described in claim 5, the elongated body having a moisture-barrier wall surrounding the outer wall of said elongated body.

3. A tampon device for the efficient entrapment of fluid during menses, comprising:

an insertion cylinder;

a body of absorbent material residing within said insertion cylinder;

an insertion plunger for ejecting said body from said insertion cylinder;

said body having a forward end and a base end, the forward end of said body being closed in a drawn, pursed configuration during residency within said insertion cylinder, and the base end of said body being a closed configuration to retard fluid loss from the body interior;

a fragile tethering means for securing the forward portion of said body to said insertion cylinder, the tethering means being of a length less than the forward movement of the body during ejection from the insertion cylinder whereby the pursed forward end is caused to flower out to an open funnel configuration, the tethering means thereafter rupturing to separate the body from the insertion cylinder; and

a draw string pursing means attached to the forward end of the body and passing through a central channel within the body and out through the base end, whereby withdrawal force applied to said draw string is transmitted to the forward open funnel-configured end causing said forward end to again purse and continuation of withdrawal force on the draw string then causing the body to eject from the user.

8. A tampon device for the efficient entrapment of menstrual fluid without materially absorbing and drying of cervical-vaginal mucosa, comprising:

a substantially tubular body of superabsorbent fiber, the tubular body having a forward end and a base end;

the base end being substantially closed to retard fluid loss from the tubular body interior;

the forward end having a draw string means for causing the tubular body to purse inwardly and downwardly when activated by the user;

the forward end also having means for causing the tubular structure to flair to an open funnel formation as the tampon is inserted into the vagina, whereby the open flared end will cap the cervice of the user; and

a barrier wall of fluid resistant material encapsulating the exterior wall of the body to prevent absorbancy from the vaginal wall.