EP0174865A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Controlled release capsule
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1985-09-13
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Granted: —
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Expires: 2005-09-13
Abstract
Abstract A capsule (10) for insertion into the rumen of an animal through the oesophagus and adapted to be retained therein while releasing a therapeutic or nutrient composition. The capsule comprises an elongate. tubular body member (12) for housing a quantity of said composition and a plurality of elongate wings (18), with each wing pivotally attached at one end thereof to the body member in the vicinity of the leading end (14) of the body. Each wing is resiliently biased away from a storage position, to which is pivotable so as to extend along the body member, toward the trailing end (16) thereof, to a laterally extending operative position in which it is at a predetermined angle to the body member, and is constrained against pivoting beyond such angle.
Inventors
- 👤 Ralph Henry Laby
- 👤 Mark Andrew Lance
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 13:45
CPC Classifications
A; A61; A61D; A61D7/00; A61M; A61M31/00; A61M31/002
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
131 words
A capsule for insertion into the rumen of an animal through the oesophagus and adapted to be retained therein while releasing a therapeutic or nutrient composition, said capsule comprising an elongate, tubular body member for housing a quantity of said composition; and a plurality of elongate wings, each wing being pivotally attached at one end thereof to the body member in the vicinity of one end (hereinafter referred to as the "leading end") of the latter; each wing being resiliently biased away from a storage position, to which it is pivotable so as to extend along the body member, toward the other (trailing) end thereof, to a laterally extending operative position in which it is at a predetermined angle to the body member, and being constrained against pivoting beyond such angle.
Claim 2
Dependent Claim
131 words
A capsule for insertion into the rumen of an animal through the oesophagus and adapted to be retained therein while releasing a therapeutic or nutrient composition, said capsule comprising an elongate, tubular body member for housing a quantity of said composition; and a plurality of elongate wings, each wing being pivotally attached at one end thereof to the body member in the vicinity of one end (hereinafter referred to as the "leading end") of the latter; each wing being resiliently biased away from a storage position, to which it is pivotable so as to extend along the body member, toward the other (trailing) end thereof, to a laterally extending operative position in which it is at a predetermined angle to the body member, and being constrained against pivoting beyond such angle.
Claim 3
Dependent Claim
14 words
A capsule according to claim 1, wherein said predetermined angle is less than 80°.
Claim 4
Dependent Claim
90 words
A capsule according to claim 1 or claim 2, wherein the wings are formed integrally with the body member, and wherein each wing is of arcuate form transversely of its longitudinal extent and defines a concave surface which, with the wing in its storage position, contacts the body member, with the surface of the wing remote from that concave surface being convex, each wing merging with the body member along a curved, integral hinge connection which is of a curvature corresponding to the curvature of the concave and convex surfaces.
Claim 5
Dependent Claim
37 words
A capsule according to claim 3, wherein a bead is formed along each hinge connection, at the junction of the convex surface and the body member, to further constrain the wings from moving beyond their operative position.
Claim 6
Dependent Claim
67 words
A capsule according to claim 3 or claim 4, wherein said wings as formed are at an angle to said body member which exceeds said predetermined angle, said wings having been held in their storage position for a period such that, on release from said storage psoition, creep in the material of which said capsule is formed results in partial recovery of the wings to predetermined angle.
Claim 7
Dependent Claim
77 words
A capsule according to claim 1 or claim 2, further including strut means which is pivotally connected to each wings and extends across the leading end of said body member, said strut means having a length intermediate its connections to said wings sufficient to enable the wings to move from their operative position to their storage position, the compressive strength of said strut means restraining said wings from moving from said storage position beyond their operative position.
Claim 8
Dependent Claim
27 words
A capsule according to claim 6, wherein said strut means is an elongate curved strut having a concave surface facing said leading end of the body member.
Claim 9
Dependent Claim
22 words
A capsule according to claim 7, wherein said strut is connected intermediate its ends to the leading end of the body member.
Claim 10
Dependent Claim
44 words
A capsule according to claim 8, wherein said strut is so connected by means of a snap-fit engagement between a projection on one of the strut and the body member in an aperture defined by the other of said strut and the body member.
Claim 11
Dependent Claim
56 words
A capsule according to any one of claims 6 to 9, wherein each said wing has an inner portion by which it is pivotally connected to said body member and to which said strut means is connected, and a further portion which is inclined at a lesser angle to said body member than said inner portion.
Claim 12
Dependent Claim
52 words
ll. A capsule according to claim 1 or claim 2, including biasing means acting between the body member and the wings so as to normally urge the wings toward their operative position, and stop means operative to prevent movement of the wings away from their storage position, beyo aa the operative position.
Claim 13
Dependent Claim
131 words
A capsule according to claim 11, wherein the capsule has an abutment member located axially beyond the leading end of the body member, one of the abutment member and the body member having an axial projection slidable in an aperture of the other of those members, such that the abutment member is movable axially, toward and away from, the leading end of the body member between inner and otuer limiting positions, the biasing means acting to urge the abutment member toward its outer position, and said stop means comprising an enlargement on the axial projection which limits the axial distance between those limiting positions; a respective strut member being pivotally connected at one end to each wing, with the other end of each strut member pivotally connected to the abutment member.
Claim 14
Dependent Claim
33 words
13 . A capsule according to claim 12, wherein said projection is integral with said body member and extends from the leading end thereof, with said aperture being defined by said abutment means.
Claim 15
Dependent Claim
22 words
14 . A capsule according to claim 13, wherein said projection is located within a transverse notch formed across said leading end.
Claim 16
Dependent Claim
58 words
15 . A capsule according to any one of claims 12 to 14, wherein each said wing has an inner portion by which it is pivotally connected to said body member and to which a said strut is connected, and a further portion which is inclined at a lesser angle to said body member than said inner portion.
Claim 17
Dependent Claim
32 words
1 6 . A capsule according to claim 10 or claim 15, wherein each said wing has an outermost portion which is inclined inwardly toward the trailing end of said body member.
Claim 18
Dependent Claim
28 words
1 7 . A capsule according to claim 10 or claim 15, wherein each said wing has an outermost portion which extends substantially parallel to said body member.
Claim 19
Dependent Claim
38 words
A capsule according to claim 16 or claim 17, wherein said outermost portion of each wing is resiliently pivotable so as to be in line with said further portion thereof when said wings are in their storage position.
Claim 20
Dependent Claim
16 words
A capsule according to any one of claims 1 to 18 formed as an integral extension.
References Cited (Backward Citations)
No citation records indexed.
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