Intravaginal anchor

• US 4,677,967 A
• Filed: 11/01/1984
• Issued: 07/07/1987
• Est. Priority Date: 11/01/1984
• Status: Expired due to Fees

• Current Assignee: New Mexico State University Technology Transfer Corporation
• Original Assignee: New Mexico State University Foundation, Inc. (New Mexico State University)
• Inventors: Zartman, David L.
• Primary Examiner(s): Peshock, Robert
• Assistant Examiner(s): Stone, Cary E.
• Application Number:
  US06/667,370
• Time in Patent Office: 978 Days
• Field of Search: 128/130, 128/131, 128/129, 128/128, 128/127, 128/341, 128/343, 128/1 R
• US Class Current: 128/830
• CPC Class Codes: A61B 10/0012 Ovulation-period determination for animals A61D17/002
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61D 7/00 Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals for reproduction or fertilisation A61D19/00 ; devices for implanting pellets, radon seeds or the like A61M37/0069
• CPC Class Codes: A61F 6/08 Pessaries, i.e. devices worn in the vagina to support the uterus, remedy a malposition or prevent conception , e.g. combined with devices protecting against contagion
• CPC Class Codes: Y10S 52/13 Hook and loop type fastener

Abstract

An intravaginal anchoring device for mammalian females comprises an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of the tubular body such that, in an expanded position, the ends of the body are moved towards each other and flange portions of the body between adjacent pairs of slots are distended away from an axis of the body and, in a collapsed position, the ends of the body are moved away from each other and the flange portions are retracted towards the axis. The device further comprises a biasing means for urging the body into the expanded position. A purpose of the anchor is to contain any payload appropriate to the interior of a female mammal'"'"'s vagina.

Claims

1. An intravaginal anchoring device for a mammalian female comprising

(a) an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of said body such that, in an expanded position, the ends of said body are moved towards each other and flange portions of said body between adjacent pairs of said slots are distended away from an axis of said body and, in a collapsed position, the ends of said body are moved away from each other and flange portions are retracted towards said axis and

(b) a biasing means for urging said body into said expanded position,

wherein, in said expanded position, the greatest distance between distal vertices of opposing flange portions is less than an expanded internal diameter of an anterior portion of said female'"'"'s vagina but greater than a contracted internal diameter of a posterior portion of said vagina prior to the onset of fetal delivery so that the device is free and mobile therein.

2. The device of claim 1 wherein said biasing means comprises an inherent bias of said body, such that said body naturally assumes said expanded position.

3. The device of claim 1 wherein said flange portions are creased such that, in said expanded position, said flange portions are substantially angular in shape, vertices of said angular shapes being the points most remote from said axis.

4. The device of claim 1, further comprising a distancing means for maintaining a minimum distance between the ends of said flange portions in said expanded position.

5. The device of claim 4 wherein said distancing means comprises an inherent bias of said body such that said body naturally assumes a configuration in which said minimum distance is substantially maintained.

6. The device of claim 1 wherein said body is of unitary construction.

7. The device of claim 1 wherein said body defines a cavity adjacent to at least one end of said body for receiving a payload.

8. The device of claim 7 wherein said payload is disposed within a capsule, said capsule being disposed within said cavity.

9. The device of claim 7 wherein said payload comprises a means for communicating information to or receiving information from outside of said female'"'"'s vagina while said device is implanted in said vagina.

10. The device of claim 1 wherein, in said expanded position, the greatest distance between distal vertices of opposing flange portions is less than an interior diameter of said posterior portion at the onset of fetal delivery prior to passage of the fetus therethrough.

11. The device of claim 1 wherein, in said collapsed position, the greatest diameter of said device is less than an internal diameter of a posterior portion of said female'"'"'s vagina prior to the onset of fetal delivery.

12. The device of claim 11 wherein said device defines a cavity for receiving a payload.

13. The device of claim 12 wherein said payload is disposed within said cavity and comprises an instrument means.

14. An intravaginal anchoring device for a mammalian female comprising

(a) an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of said body such that, in an expanded position, the ends of said body are moved towards each other and flange portions of said body between adjacent pairs of said slots are distended away from an axis of said body and, in a collapsed position, the ends of said body are moved away from each other and said flange portions are retracted towards said axis and

(b) a biasing means for urging said body into said expanded position,

wherein, in said expanded position, the greatest distance between distal vertices of opposing flange portions is less than an expanded internal diameter of an anterior portion of said female'"'"'s vagina but greater than a contracted internal diameter of a posterior portion of said vagina prior to the onset of fetal delivery, said biasing means comprising at least one elongated elastic memnber attached at one end to a first end of said body and at the other end to a second end of said body.

15. An intravaginal anchoring device for a mammalian female comprising

(a) an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of said body such that, in an expanded position, the ends of said body are moved towards each other and flange portions of said body between adjacent pairs of said slots are distended away from an axis of said body and, in a collapsed position, the ends of said body are moved away from each other and said flange portions are retracted towards said axis,

(b) a biasing means for urging said body into said expanded position, and

(c) a distancing means for maintaining a minimum distance between ends of said flange portions in said expanded position,

wherein said distancing means comprises a protrusion affixed adjacent to first ends of said flange portions and extending toward second ends of said flange portions and at least one stop affixed adjacent to said second ends of said flange portions, such that said protrusion rests against said stop to maintain said minimum distance.

16. An intravaginal anchoring device for a mammalian female comprising a flexible flanged area capable of assuming an expanded diameter and a collapsed diameter, and a biasing means to urge said area into said expanded diameter, wherein said expanded diameter is less than an expanded internal diameter of an anterior portion of said female'"'"'s vagina and greater than a contracted internal diameter of a posterior portion of said female'"'"'s vagina prior to the onset of fetal delivery, such that said device is retained in said anterior portion, and wherein said collapsed diameter is less than said internal diameter of said posterior portion prior to the onset of fetal delivery.

17. The device of claim 16 wherein said expanded diameter is less than an internal diameter of said posterior portion at the onset of fetal delivery prior to the passage of the fetus therethrough.

18. A method of anchoring a device within an anterior portion of the vagina of a mammalian femal comprising the steps of

selecting an anchor having an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of said body such that, in an expanded position, the ends of said body are moved towards each other and flange portions of said body between adjacent pairs of said slots are distended away from an axis of said body and, in a collapsed position, the ends of said body are moved away from each other and said flange portions are retracted towards said axis, and a biasing means for urging said body into said expanded position, wherein, in said expanded position, the greatest distance between distal vertices of opposing flange portions is less than an expanded internal diameter of an anterior portion of said female'"'"'s vagina but greater than a contracted internal diameter of a posterior portion of said vagina portion to the onset of fetal delivery,

configuring said body into said collapsed position,

inserting said body through said contracted internal diameter and into said anterior portion,

expanding said body into said expanded position, and

biasing said body into said expanded position such that said anchor is retained within said anterior portion.

19. The method of claim 18 wherein said configuring step comprises the steps of simultaneously moving the ends of said body away from each other and retracting said flange portions towards said axis.

20. The method of claim 18 wherein said expanding step comprises the steps of simultaneously moving the ends of said body towards each other and distending said flange portions away from said axis.

21. The method of claim 18 wherein said inserting step comprises the steps of inserting said anchor through a tube speculum in said collapsed position.

22. The method of claim 18 wherein said biasing step comprises the step of allowing said body to assume a naturally expanded position.

23. A method of anchoring a device within an anterior portion of the vagina of a mammalian female comprising the steps of

selecting an anchor having an elongated tubular body provided with a plurality of slots disposed substantially parallel to each other and to the length of said body such that, in an expanded position, the ends of said body are moved towards each other and flange portions of said body between adjacent pairs of said slots are distended away from an axis of said body and, in a collapsed position, the ends of said body are moved away from each other and said flange portions are retracted towards said axis, and a biasing means for urging said body into said expanded position, wherein, in said expanded position, the greatest distance between distal vertices of opposing flange portions is less than an expanded internal diameter of an anterior portion of said female'"'"'s vagina but greater than a contracted internal diameter of a posterior portion of said vagina prior to the onset of fetal delivery,

configuring said body into said collapsed position,

inserting said body through said contracted internal diameter and into said anterior portion,

expanding said body into said expanded position, and

biasing said body into said expanded position such that said anchor is retained within said anterior portion, said biasing step comprising the step of affixing at least one elongated elastic member to both ends of said body.