Fetal Pulse Oximetry and ECG Sensor
First Claim
1. A sensor device comprising:
- a housing carrying a light emitter and a light detector adapted for use in a pulse oximetry process of a tissue field; and
a spiral probe carried by the housing and adapted to secure the housing at the tissue field, wherein an elongated probe driver rotates the spiral probe into engagement with the tissue field, with an end portion of the probe driver extending into the spiral probe during a placement procedure.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical device configured to be temporarily secured at a tissue field, such as a fetal skull, via a spiral probe. The spiral probe functions to both secure the sensor in place and provide an electrode for ECG purposes. The spiral probe is non-uniform and includes one or more of a stop element, a cross bar element and a collapsed portion adapted to engage tissue after a predetermined rotation of the probe into the tissue field. The probe diameter can expand with an increase in torque applied to a drive rod, leading to disengagement of the drive rod from the probe. The spiral probe and drive rod may define a detent mechanism whereby upon reaching a predetermined torque the drive rod is disengaged from the probe and freely rotates without further entry of the spiral probe into the tissue field.
30 Citations
86 Claims
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1. A sensor device comprising:
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a housing carrying a light emitter and a light detector adapted for use in a pulse oximetry process of a tissue field; and a spiral probe carried by the housing and adapted to secure the housing at the tissue field, wherein an elongated probe driver rotates the spiral probe into engagement with the tissue field, with an end portion of the probe driver extending into the spiral probe during a placement procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 73, 74, 75, 76, 84, 85, 86)
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12. A sensor device comprising:
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a housing carrying a light emitter and a light detector utilized in a pulse oximetry process; and a spiral probe carried by the housing and having a tissue engagement portion and a ring engagement portion, with a diameter of the tissue engagement portion being substantially different than a diameter of the ring engagement portion, wherein the tissue engagement portion engages a tissue field and wherein the ring engagement portion engages a conductor to communicate thereto an electrical signal from the tissue field. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A sensor device comprising:
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a housing carrying a light emitter and a light detector utilized in a pulse oximetry process; a spiral probe carried by the housing; and a probe driver for rotating the probe, with a distal end of the probe driver being received into the spiral probe to a depth determined by a stop, the stop preventing the driver from being further received into the spiral probe. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 77)
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32. A sensor device comprising:
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a housing carrying a light emitter and a light detector; a spiral probe carried by the housing; and an elongated probe driver for rotating the probe with a 1;
1 relationship into engagement with a tissue field, the spiral probe and driver defining a detent mechanism whereby upon reaching a predetermined torque, the driver rotates without further rotation of the probe into the tissue field. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 78, 79, 80)
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43. A sensor device comprising:
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a housing carrying a light emitter and a light detector; and a spiral probe carried by the housing, the probe being rotatable relative to the housing, with a portion of the probe engaging a tissue field of a patient and another portion of the probe engaging a conductive ring and communicating a physiologic signal from the tissue field. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 81, 82)
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54. A sensor device comprising:
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a housing carrying a light emitter and a light detector; and a spiral probe having a sharpened tissue engaging end and an opposite end engaging a conductor for communicating a physiological signal from a tissue field, the spiral probe having a collapsed portion between the tissue engaging end and the opposite end, the spiral probe being rotated to engage a tissue field, with the collapsed portion limiting the depth to which the probe engages the tissue field. - View Dependent Claims (83)
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55. A sensor device comprising:
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a spiral probe having a tissue engaging end; a light detector receiving light from a light emitter during an oximetry process; and a flexible circuit, with the spiral probe being in movable contact with the flexible circuit, and the flexible circuit being coupled to a communications link providing communication of a light detector signal and an probe signal to a remote monitor. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. A sensor device comprising:
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a spiral probe for receiving a physiologic signal from a patient; a light detector receiving light from a light emitter during an oximetry process of the patient, the light detector being connected to a surface of a flexible circuit; and a communications link connected to the flexible circuit, the link communicating a signal from the light detector and the physiologic signal from the spiral probe to a remote monitor. - View Dependent Claims (68, 69, 70, 71, 72)
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Specification