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US006620171B2
(12) United States Patent ao) Patent No.: us 6,620,171 B2
Vines (45) Date of Patent: Sep. 16,2003
OTHER PUBLICATIONS
www.mityvac.com, Sep. 12, 2002.
www.prismenterprise.com.
http://www.prismenterprise.com/mityvacob/mityvac. html,
Sep. 12, 2002.
Bestgen et al: "Force and Pressure Measurement During
Vacuum Extractions in Obstetrics".
Reports In Applied Measurement, Hottinger Baldwin
Messtechinik, Darmstadt, DE, vol. 9, No. 1, 1995, pp. 1-4.
XP000521570 ISSN:0930-7923 The Whole Document.
Rule 39.1 (iv) PCT—Method For Treatment of The Human
or Animal Body By Surgery.
* cited by examiner
Primary Examiner—Ismael Izaguirre
(57) ABSTRACT
The present invention aids a person who is assisting with
fetal extraction by monitoring and recording the pressure
inside a vacuum device. The invention includes a suction
device that is enabled for vacuum attachment to a fetus, a
pump that is capable of producing a vacuum pressure, and
tubing that fluidly couples the suction device to the pump. In
another embodiment, the invention is embodied as a method
that includes the acts of attaching a suction device to a fetus,
detecting the vacuum pressure, and recording the vacuum
pressure.
21 Claims, 4 Drawing Sheets
