Surgery – Truss – Pad
Patent
1977-02-24
1979-01-23
Kamm, William E.
Surgery
Truss
Pad
A61F 900
Patent
active
041355164
ABSTRACT:
An enzymatic intralenticular cataract treatment method for removal of nuclear cortical and subcapsular regions of the cataractous lens through enzymatic digestion thereof, which comprises introduction of a concentrated solution of proteinase into the nuclear and cortical regions of a cataractous lens by way of a cannula inserted through a very tiny incision in the cornea and puncture opening into the lens capsule, leaving all other structures within the eye intact, after which a gas bubble is introduced from the cannula into the lens, the gas bubble serving to maintain the enzyme compartmentalized within the subcapsular region.
As illustrated in FIG. 4, a preferred embodiment of the apparatus involved with the method comprises an enzyme reservoir connected through a delivery means and a four port, two channel valve to a cannula. The cannula is filled with enzyme solution then the delivery means and valve are operated by the surgeon so as to carry out the above described treatment method.
REFERENCES:
patent: 3347235 (1967-10-01), Hunnicutt
patent: 3589363 (1971-06-01), Banko et al.
patent: 3815604 (1974-06-01), O'Malley et al.
patent: 3994297 (1976-11-01), Kopf
patent: 4033349 (1977-07-01), Baehr
Spina Joseph
Weibel Michael K.
Kamm William E.
Novo Laboratories, Incorporated
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