Pulse oximeter probe
First Claim
1. A probe for use in emitting light through a patient tissue to measure blood constituents comprising:
- a first housing;
a second housing;
a light emitting element disposed on one of said first and second housings;
a photo sensing element for sensing light emitted from said light emitting element, said photo sensing element being disposed on another of said first and second housings;
a movable mechanism having a pair of knobs, said movable mechanism being operable such that when said paired knobs are moved to each other, said movable mechanism moves said housings apart from each other in a state that said housings remain parallel to each other, and when said paired knobs are moved apart from each other, said movable mechanism moves said housings toward each other; and
an elastic member for urging said pair of knobs to be separated from each other.
1 Assignment
0 Petitions
Accused Products
Abstract
A movable mechanism (3) moves a first housing (1) having a light emitting element (4) mounted thereon and a second housing (2) having a photo sensing element (5) mounted thereon in a state that those housings are parallel to each other. The movable mechanism (3) includes a pair of knobs (15A and 15B) and a spring (11) urging those knobs to move apart from each other. When the knobs (15A and 15B), while resisting the force of the spring (11), are pressed so as to make a mutual approach of those knobs, the first housing (1) and the second housing (2) are moved apart from each other. At this time, a finger of a patient is placed between the housings, and an operator gradually lessens his force applied to the knobs (15A and 15B) and reduces the force to zero. Then, the finger is held between the first housing (1) and the second housing (2). In this case, the orientations of the axes of the light emitting element (4) and the photo sensing element (5) are variable irrespective of the thickness of the finger.
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Citations
6 Claims
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1. A probe for use in emitting light through a patient tissue to measure blood constituents comprising:
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a first housing; a second housing; a light emitting element disposed on one of said first and second housings; a photo sensing element for sensing light emitted from said light emitting element, said photo sensing element being disposed on another of said first and second housings; a movable mechanism having a pair of knobs, said movable mechanism being operable such that when said paired knobs are moved to each other, said movable mechanism moves said housings apart from each other in a state that said housings remain parallel to each other, and when said paired knobs are moved apart from each other, said movable mechanism moves said housings toward each other; and an elastic member for urging said pair of knobs to be separated from each other. - View Dependent Claims (2, 3, 4)
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5. A sensor including a pair of housings for gripping patient'"'"'s tissue, having a physiological signal detecting element on an inside surface of one of said housings comprising:
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a movable mechanism having a pair of knobs, said movable mechanism being operable so that when said paired knobs are moved to each other, said movable mechanism moves said housings apart from each other in a state that said housings remain parallel to each other, and when said paired knobs are moved away from each other, said movable mechanism moves said housings toward each other; and an elastic member for urging said pair of knobs to be separated from each other. - View Dependent Claims (6)
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Specification