Renseignements généraux

Nº de série

S/O

Nº de partie

6

Nombre total de parties

6

Ou

S/O

Brevets

S/O

Description générale

Glass thermometer and bulb with rubber stopper, fibre wadding, metal nub and mercury content

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

24,8 cm

Largeur

S/O

Hauteur

S/O

Épaisseur

S/O

Poids

S/O

Diamètre

2,0 cm

Volume

S/O

Lexique

Groupe

Technologie médicale

Catégorie

Recherche

Sous-catégorie

S/O

Fabricant

Ou

Murray

Pays

Canada

État/province

Ontario

Ville

Toronto

Contexte

Pays

Canada

État/province

Ontario

Période

Used 1946- 1947.

Canada

First artificial kidney machine made in North America by Dr. Gordon Murray, simultaneously and independently of Willem Kolff's invention in Holland in the 1940s. Designed and built by Murray himself, it was used successfully on four patients at Toronto General Hospital, 1946-47. Murray was a remarkable surgeon and innovator whose work earned him international recognition. In the 1930s Dr. Murray introduced the anticoagulant Heparin to world clinical practice; in the '40s he developed the first artificial kidney in North America; and in 1955 he performed the first successful transplant of a human heart valve. Unfortunately, these achievements are often overshadowed by his later, controversial work on an anti-cancer serum, and on unconventional surgery for injuries caused by traumatic paraplegia. (Ref. 3]

Fonction

Inconnu

Technique

In the early version of his artificial kidney, Murray used cellulose acetate sausage casing with a diameter of 1-inch in the dialysing membrane. The casing had first to be bathed in warm tap water. It was then wound around the wire mesh frame, and held in position between small metal pegs. While effective in allowing some substances to pass through the membrane, the ratio of volume to surface area was not practical. In later versions up to 150 feet of 1/4-inch tubing was used to transport the patient's blood through the diaylsing bath. [Ref. 6] This length of casing may have been intended for use as replacement material, or it may be leftover from the cylinder's construction. Roschlau's design of the dialyzer used in the second artificial kidney machine utilized a parallel-plate arrangement: 30 layers of dialysis units each with two membranes and two dialysis compartments produced a flat-plate parallel-flow filter. [see 2002.0620.3]

Notes sur la région

Inconnu

Détails

Marques

Measurements in increments of 10 from 20 below zero up to 50/ "76 MM 1MM"

Manque

Appears complete

Fini

Clear glass thermometer with a white back coating and brown markings, silver coloured base, a black stopper and clear glass bulb covering a light brown piece of padding.

Décoration

S/O