Rapid warming of infusion solutions

Yamada, Yoshio; Yasoshima, A

doi:10.1097/00005373-198601000-00035

Cited by 1 publication

(1 citation statement)

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“…A simple waterproof mi croautoinjector would be very convenient, especially for these patients. Epidural anes thesia with continuous infusion of narcotics relieves the pain effectively [2], Various in struments are used for the operations [3], for the electrical administration of chemicals [4,5] and for the direct injection of micro amounts of drugs to single cells [6,7], Two kinds of autoinjectors were built: one is us ing gas pressure produced by electrolysis of medical-grade 7% sodium bicarbonate solu tion and the other derives its power from the catalysis of medical-grade 3.3% hydrogen peroxide solution. The latter is a very simple device which can be used for continuous drug infusion to achieve epidural anesthesia in cancer patients at the terminal stage.…”

Section: Introductionmentioning

confidence: 99%

Cancer Pain Treatment with a Simple Custom-Built Portable Waterproof Microautoinjector

Yamada¹,

Yasoshima²

1987

Gynecol Obstet Invest

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Severe cancer pain was relieved by a simple custom-built microautoinjector. Its injecting power is derived from the decomposition and expansion of medical-grade 3.3% hydrogen peroxide. The injection speed is controlled by the addition of a microamount of medical-grade iodide which catalyzes the hydrogen peroxide. The amount of potassium iodide used is so small that decomposition and expansion speeds are nearly constant. The size of the power device is 1 cm³; it may be inserted into the injector, which then does not need a gasket any more. This means that this microinjector with the solution to be injected is only half the size of an ordinary disposable syringe. It is convenient for epidural anesthesia of untreatable cancer pain.

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