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Method and system for production and collection of lavage induced stool (LIS) for chemical and biologic tests of cells

  • US 6,447,763 B1
  • Filed: 06/12/1998
  • Issued: 09/10/2002
  • Est. Priority Date: 06/12/1998
  • Status: Expired due to Term
First Claim
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1. A method for producing lavage induced stools for chemical and biological tests of cells exfoliated from a patient'"'"'s digestive tract including intact cells exfoliated from the upper gut as well as the lower gut in quantities suitable for cytological examination and with sufficient preservation of morphology for the diagnosis of disease, comprising the steps of:

  • orally administering to a patient at least one preliminary substance selected from the group consisting of an oral cathartic and a lavage solution, to induce bowel motions and to cleanse the patient'"'"'s digestive tract; and

    subsequently orally administering to the patient a cell exfoliating lavage solution different from said preliminary substance to increase exfoliation of intact cells from throughout the patient'"'"'s digestive tract including exfoliating cells from the upper gut as well as the lower gut, said cell exfoliating lavage solution containing a pH buffer to aid in preserving exfoliated cells for medical diagnosis of the patient'"'"'s digestive tract.

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