CONJUNCTIVAL DEVICE

• US 3,769,961 A
• Filed: 07/20/1972
• Issued: 11/06/1973
• Est. Priority Date: 07/20/1972
• Status: Expired due to Term

• Current Assignee: Irving Fatt, Sotiris Kitrilakis
• Original Assignee: Irving Fatt, Sotiris Kitrilakis
• Inventors: Kitrilakis, Sotiris, Fatt, Irving
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/273,421
• Time in Patent Office: 474 Days
• Field of Search: 128/2,2E,2T,2.1E,2.5T,2L
• US Class Current: 600/356
• CPC Class Codes: A61B 3/10 Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/1477 non-invasive
• CPC Class Codes: A61B 5/150015 Source of blood

Abstract

A blood condition indicating and detecting device for use with the palpebral conjunctiva, especially for physiological measurement, includes a locating body having a primary layer with a concave face adapted to abut the sclera and having a convex face adapted to abut the palpebral conjunctiva. The locating body is arranged to be away from the cornea and supports an electrical detecting device having a surface abutting the palpebral conjunctiva. Electrical leads extend from the detecting device through the locating body, emerge near one edge thereof, and are connected to an appropriate indicating device.

Claims

1. A blood condition detecting device for use with the palpebral conjunctiva comprising a primary layer having a concave face with the contour shaped to at least a portion of the sclera surrounding the cornea, an electrical detecting device mounted in said primary layer and having a measuring face substantially spaced from said concave face, and a secondary layer overlying said primary layer and having a convex face with the contour shaped to of at least a portion of the palpebral conjunctiva and substantially continuing said measuring face.

2. A device as in claim 1 including leads joined to said detecting device and extending through and from said primary layer.

3. A device as in claim 1 including a membrane overlying said detecting device and extending between said detecting device and said secondary layer.

4. A device as in claim 1 in which said primary and secondary layers are provided with an opening in the vicinity of the cornea.

5. A device as in claim 1 in which said detecting device includes a portion outstanding from said primary layer and encasing electrodes extending substantially to said measuring face.

6. A blood condition detecting device for use with the palpebral conjunctiva comprising a body having an inside surface shaped to fit against the sclera and having an outside surface shaped to fit against the palpebral conjunctiva, means on said body defining an opening therein adjacent to but clear of the cornea, an electrical detecting device on said body having a face, said detecting device face in position to contact said palpebral conjunctiva, leads extending from said detecting device, and indicating means remote from said body connected to said leads.

7. A blood condition detecting device for use with the palpebral conjunctiva comprising a body adapted to fit between the sclera and said palpebral conjunctiva, an electrical detector mounted on said body adapted to contact with said palpebral conjunctiva, said detector having means for affording a response to arterial CO2 tension in said palpebral conjunctiva, and means for displaying said response.

8. A blood condition detecting device for use with the palpebral conjunctiva comprising a body adapted to fit between the sclera and the palpebral conjunctiva, an electrical detector mounted on said body adapted to contact with said palpebral conjunctiva, said detector having means for affording a response to arterial pH in said palpebral conjunctiva, and means for displaying said response.

9. A blood condition detecting device for use with the palpebral conjunctiva comprising a body adapted to fit between the sclera and said palpebral conjunctiva, an electrical detector mounted on said body adapted to contact with said palpebral conjunctiva, said detector having means for affording a response to arterial temperature in said palpebral conjunctiva, and means for displaying said response.

10. A blood condition detecting device for use with the palpebral conjunctiva comprising a body adapted to fit between the sclera and said palpebral conjunctiva, electrical detecting means mounted on said body adapted to contact with said palpebral conjunctiva for simultaneously affording responses to two or more conditions of the palpebral conjunctiva including the arterial oxygen tension, the arterial CO2 tension, the arterial pH and the arterial temperature, and means for displaying said responses.

11. A device as in claim 10 in which said means includes one detector responsive to two or more of said conditions.