Presenting part fetal oximeter sensor with securing mechanism for providing tension to scalp attachment
First Claim
1. A perinatal pulse oximeter sensor for application to a presenting part of a fetus and measurement of blood oxygen saturation, comprising:
- a sensor head having a fetus engaging surface for engagement with the presenting part of said fetus;
light emitting means connected to said sensor head for emitting light of at least two wavelengths directed at said presenting part of said fetus;
light detecting means mounted in said sensor head for collecting light to be detected;
attachment means for passing through a tissue of the presenting part of said fetus; and
a securing and tensioning member, connected to said sensor head a distance away from said engaging surface, for securing and applying tension to said attachment means after it is passed through said tissue of said fetus.
1 Assignment
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Accused Products
Abstract
A presenting part fetal pulse oximeter sensor with a securing mechanism for providing tension to a hook or other securing mechanism penetrating the fetal scalp. In one embodiment, a sensor can be secured to the presenting part of the fetus by means of a suture or a hook which penetrates the fetus'"'"' scalp. If a suture is used, the ends of the suture are wrapped around a securing member, such as a bar, attached to the back of the sensor. By tying the suture ends around this securing member, the sensor is pressed up against the fetus'"'"' scalp and retained in place by virtue of tension provided in the suture between the securing member and the portion of the suture penetrating the fetus'"'"' scalp.
120 Citations
7 Claims
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1. A perinatal pulse oximeter sensor for application to a presenting part of a fetus and measurement of blood oxygen saturation, comprising:
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a sensor head having a fetus engaging surface for engagement with the presenting part of said fetus; light emitting means connected to said sensor head for emitting light of at least two wavelengths directed at said presenting part of said fetus; light detecting means mounted in said sensor head for collecting light to be detected; attachment means for passing through a tissue of the presenting part of said fetus; and a securing and tensioning member, connected to said sensor head a distance away from said engaging surface, for securing and applying tension to said attachment means after it is passed through said tissue of said fetus. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A perinatal pulse oximeter sensor for application to a presenting part of a fetus and measurement of blood oxygen saturation, comprising:
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a sensor head having a fetus engaging surface for engagement with the presenting part of said fetus; light emitting means connected to said sensor head for emitting light of at least two wavelengths directed at said presenting part of said fetus; light detecting means mounted in said sensor head for collecting light to be detected; a suture for passing through a tissue of the presenting part of said fetus, said suture being detachable from said sensor; and a securing and tensioning bar, connected across an opening in said sensor head, for securing and applying tension to said suture after it is passed through said tissue of said fetus.
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Specification