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DROP FLOW SENSOR AND RESILIENT CLAMP THEREFOR

  • US 3,596,515 A
  • Filed: 11/27/1967
  • Issued: 08/03/1971
  • Est. Priority Date: 11/27/1967
  • Status: Expired due to Term
First Claim
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1. A sensing device adapted to be mounted on the drip chamber of an intravenous set, said sensing device comprising:

  • a generally oblong housing having a sensing gap therein, said gap being adapted to receive said drip chamber;

    a light source positioned in a first end of said housing, the light from said light source being formed into a narrow reference beam directed through said sensing gap and any drip chamber contained therein;

    photosensitive means positioned in a second end of said housing said photosensitive means being in the path of said reference beam;

    a hollow conduit communicating with said first end and said second end of said housing and establishing the spacing therebetween;

    means within said conduit for electrically interconnecting said light source and said photosensitive means;

    clamping means for detachably clamping said device to said drip chamber, said clamping means comprising a sleeve disposed around one of said first and second ends of said housing in sliding relationship therewith, said sleeve being resiliently urged across said gap, and at least one grip rod extending from said sleeve, said grip rod forming a syringe-type grip in conjunction with an external face of said one of said first and second ends of said housing; and

    means for electrically connecting said photosensitive means to an indicating means.

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