FINGER COT

Abstract: An oximetric sensor probe is movably coupled to a patient's finger to facilitate transillumination and detection of optical energy through a portion of the patient's finger without subjecting the finger to significant deformation. The finger is received within a receptacle having a cup-shaped closed end and an opposite open end that is rolled up upon itself and is adapted to be unrolled longitudinally along the finger to form a tubular enclosure which closely surrounds the finger. An optical source and an optical detector are arranged in spaced axial alignment with each other on opposite sides of the finger so that optical energy transmitted by the source through the finger is received by the detector. The detected light is analyzed to noninvasively determine the saturation of oxygen within the patient's blood. By virtue of the non-adhesive connection between the probe and the finger, decoupling the optical path between the source and detector is minimized in the event that the patient moves his finger during testing. The optical source and optical detector also are separable from the finger cot such that the optical sensor may be reused with another finger cot.

Abstract: The intra-gastric weight loss system apparatus and method of the present invention includes an intra-gastric elastomeric rubber balloon with self-sealing fill valve, to be placed and retrieved without surgery. As a benign space-occupying device, it will decrease gastric capacity to the point that saiety (the feeling of fullness) will occur after very little food has been consumed. Thus, the advantages of gastric and intestinal by-pass surgery will be realized, without surgery and the many resulting complications thereof. The elastomeric balloon is inflated with a liquid, preferably a saline solution containing an X-ray contrast media. The balloon is placed in a person's stomach by passing a naso-gastric tube through the mouth. The N-G tube has a previously placed nylon pull string through the lumen and back up the exterior. After this, a metal stylette is run down the lumen to very near the end of the N-G tube. The rolled up balloon with fill tube attached is inserted into a rubber finger cot attached to the pull string. By pulling the string the balloon containing finger cot is drawn down into the stomach. After placement in the stomach the stylette is removed and the balloon is inflated with liquid. Inflation causes the rubber finger cot to roll up and remove itself. Then the fill tube is withdrawn and the pull string with the finger cot attached is withdrawn. The balloon is now free-floating in the person's stomach without any tube attached. Regular check-ups, administration of food supplements, etc., follow thereafter. When the desired weight loss has been achieved the balloon can be easily deflated, and passed in normal fashion, or removed by use of a gastroscope and snaring of an attached withdrawal loop on the balloon.

Abstract: A urological drape is provided defining a vaginal aperture and a finger cot for accessing the rectum of a patient without making contact therewith. The drape includes an adhesive backing for fixing the drape relative to the patient. Preferably, a pouch is provided which is constructed and arranged to catch any fluids which might be discharged from the vagina during an examination or surgical procedure.

Abstract: Increasing security needs require field-deployable, on-the-spot detection tools for the rapid and reliable identification of gunshot residue (GSR) and nitroaromatic explosive compounds. This manuscript presents a simple, all-solid-state, wearable fingertip sensor for the rapid on-site voltammetric screening of GSR and explosive surface residues. To fabricate the new Forensic Fingers, we screen-print a three-electrode setup onto a nitrile finger cot, and coat another finger cot with an ionogel electrolyte layer. The new integrated sampling/detection methodology relies on 'voltammetry of microparticles' (VMP) and involves an initial mechanical transfer of trace amounts of surface-confined analytes directly onto the fingertip-based electrode contingent. Voltammetric measurements of the sample residues are carried out upon bringing the working electrode (printed on the index finger cot) in direct contact with a second finger cot coated with an ionogel electrolyte (worn on the thumb), thus completing the solid-state electrochemical cell. Sampling and screening are performed in less than four minutes and generate distinct voltammetric fingerprints which are specific to both GSR and explosives. The use of the solid, flexible ionogel electrolyte eliminates any liquid handling which can resolve problems associated with leakage, portability and contamination. A detailed study reveals that the fingertip detection system can rapidly identify residues of GSR and nitroaromatic compounds with high specificity, without compromising its attractive behavior even after undergoing repeated mechanical stress. This new integrated sampling/detection fingertip strategy holds considerable promise as a rapid, effective and low-cost approach for on-site crime scene investigations in various forensic scenarios.