Monitoring of cervical dilatation during labor

Patent 4476871 Issued on October 16, 1984. Estimated Expiration Date:

April 23, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3480003

Urethral profilometry catheter
Patent #: 4073287
Issued on: 02/14/1978
Inventor: Bradley , et al.

Gastroesophageal reflux diagnostic tool
Patent #: 4168703
Issued on: 09/25/1979
Inventor: Kenigsberg

Stabbing apparatus for diagnosis of living body Patent #: 4299230
Issued on: 11/10/1981
Inventor: Kubota

Inventor

Hon, Edward H.

Assignee

American Home Products Corporation

Application

No. 06/371371 filed on 04/23/1982

US Classes:

600/376, Fetal monitoring200/81.4, Plural switch200/83N, Contacts on diaphragm600/509, Detecting heartbeat electric signal600/588, Associated with parturition600/591Vagina or uterus

Examiners

Primary: Howell, Kyle L.
Assistant: Hanley, John C.

Attorney, Agent or Firm

Blocker; Edward M.

International Classes

A61B 5/00 (20060101)
A61B 5/0448 (20060101)
A61B 5/0402 (20060101)
A61B 5/107 (20060101)
A61B 5/03 (20060101)
A61B 5/0428 (20060101)

Abstract

A device for use in monitoring cervical dilatation during labor. The device comprises an elongated member having a longitudinal axis, the member being adapted to be positioned between a fetal presenting part and a cervix; and means for measuring the recession of the cervix with cervical dilatation from the elongated member and along the longitudinal axis thereof. Also provided are systems and methods of monitoring cervical dilatation during labor. An elongated member having a longitudinal axis is positioned between a fetal presenting part and a cervix. The elongated member is anchored against longitudinal movement with respect to a maternal reference point. The recession of the cervix with cervical dilatation from the elongated member and along the longitudinal axis is measured.