Method and apparatus for indicating parturition

Details Method and apparatus for indicating parturition Method and apparatus for indicating parturition

1988-08-03

1990-06-26

Hindenburg, Max

Surgery

Truss

Pad

128778, 340573, A61B 510

Patent

active

049363166

ABSTRACT:
An animal birth detector is described comprising apparatus attached in the proximity of the animal's vulva for detecting the birth of offspring by monitoring the swelling of the vulva during the period prior to and during delivery of the newborn. More specifically, the animal birth detector comprises a unitary device containing a transmitter attached to the skin proximate one side of the animal's vulva, the transmitter utilizing a reed relay switch to sense the proximity of a permanent magnet located in the device. As the vulva dilates at time of delivery, the magnet is moved out of the magnetic field sensing area of the reed switch, turning on the transmitter whose transmissions are received by a receiver monitored by an attendant.

REFERENCES:
patent: 4147160 (1979-04-01), Aranew et al.
patent: 4232686 (1983-11-01), Kammlade, Jr.
patent: 4319583 (1982-03-01), Ingle

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