US 4,307,724 AGranted

Obstetric device for assisting in the birth of animals

OwnerVincent J. Kilmartininventor

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Abstract

An obstetric device for assisting in the birth of animals, has an end frame that abuts the pelvis of the dam and defines an aperture through which the offspring is delivered, and a longitudinal frame member that extends perpendicularly away from the end frame member and is connected thereto by a U-shaped portion that lies in a plane perpendicular to the end frame. The legs of the U-shaped portion are secured to opposite side portions of the end frame at positions on the side portions below their midpoints but above their lower ends so that the greater part, but not all, of the delivery aperture is positioned above the longitudinal frame member. At the other end of the longitudinal frame member, a T-shaped portion provides axles for winding drums that are freely rotatable in either direction thereon, independently of each other. A delivery rope is wound up on each drum, for attachment to the forelegs of the offspring. Handles are provided on the winding drums to rotate them manually so as to tension the delivery ropes.

Claims2

Dependent claims

An obstetric device for assisting in the birth of animals comprising:

(a) an end frame which is adapted to abut the pelvis of the dam and which defines an aperture through which the nascent offspring may be delivered,
(b) a longitudinal frame member extending perpendicularly away from the end frame member and connected thereto by a substantially U-shaped portion which lies in a plane normal to the end frame, the legs of the U-shaped portion being secured to opposite side portions of the end frame at positions on said side portions below their mid-points but above their lower ends such that the greater part but not all of the delivery aperture is positioned above the longitudinal frame member,
(c) a substantially T-shaped portion on the end of the longitudinal frame member remote from the end frame, the short arms of the T-shaped portion forming axles exending laterally outwardly from the longitudinal frame member and at right angles thereto,
(d) a winding drum rotatably mounted on each axle and each winding drum being rotatable independently of the other,
(e) a delivery rope secured by one end to, and adapted for winding up on, each of said winding drums, the other end of each delivery rope being provided with means for attaching the rope to the forelegs of the nascent offspring,
(f) a handle located to each outer side of, and spaced from, the longitudinal frame member and connected to each winding drum, by means of which each drum can be manually rotated independently of each other to apply separate tension to each delivery rope, and
(g) means permitting free movement of the winding drums in both directions.

4 more elements

An obstetric device for assisting in the birth of animals comprising:

(a) an end frame to which is attached at least one longitudinal frame member extending rearwardly and perpendicularly away from the end frame, and in which the frame has a top portion, a bottom portion and two side portions which define an aperture through which the nascent offspring may be delivered, abutment members connected to each side portion and converging rearwardly of said end frame in the general direction of the longitudinal frame member, whereby when the device is in use the end frame is adapted to abut the pelvis of the dam with the top frame portion positioned above the tail of the dam, while at least a portion of each abutment member is adapted to engage with the ischial tuberosities of the dam, and the bottom portion of the frame is adapted to press against the legs of the dam,
(b) a pair of winding drums rotatably mounted on an axle or axles located at the end of the longitudinal frame remote from the end frame and which extend transversely of said longitudinal frame in a plane parallel to the plane of the end frame, and each winding drum being rotatable independently of the other,
(c) a delivery rope attached by one end to, and adapted for winding up on each of said winding drums the other end of each delivery rope being provided with means for attaching the rope to the forelegs of the nascent offspring, and
(d) a handle located to each outer side of, and spaced from, the longitudinal frame member and connected to each winding drum, by means of which each drum can be manually rotated independently of the other to apply separate tension to each delivery rope, said at least one longitudinal frame member being connected to the end frame by means of a substantially U-shaped or V-shaped member the limbs of which form said abutment member and which define a cradle which is adapted when in use to receive the ischial tuberosities of the dam against which the abutment members are adapted to anchor, the limbs of the U-shaped or V-shaped abutment member being connected to opposite side portions of the end frame at positions below their mid-points but above their lower ends such that the greater part but not all of the delivery aperture is positioned above said abutment member.

1 more element

Dependencies are inferred from the claim text.