Needle guide for implanting intra-ocular lens

Details Needle guide for implanting intra-ocular lens Needle guide for implanting intra-ocular lens

1980-06-23

1982-09-14

Thaler, Michael H.

Surgery

Truss

Pad

128340, A61B 1706

Patent

active

043490271

ABSTRACT:
A needle guide for intra-ocular surgery designed for insertion through the corneal rim incision to span the anterior chamber of the patient's eye, and being thereby positioned to conduct surgical needles safely past the corneal endothelium, comprises an elongated narrow substantially rectangular guide plate having along each edge an elongated needle flange inturned to form a needle guide chamber dimensioned to embrace a surgical needle during its endwise telescoping passage through the guide chamber, and having an elongated suture-release slot too narrow to permit lateral removal of a surgical needle from the guide chamber, whereby the elongated narrow guide may be inserted spanning an anterior chamber, guided by trans-illumination, a pair of surgical needles secured to opposite ends of a first suture loop interlinked with a retention loop of an intra-ocular lens may be inserted through the respective guide chambers safely passing the endothelium to exit through the sclera opposite the corneal rim incision, leaving the bight of the first suture loop protruding from the incision, the tension maintained on the first suture loop permits the needle guide to be withdrawn through the incision and detached by lateral withdrawal of the first suture loop through the suture release slots, after which the intra-ocular lens may be inserted in the anterior chamber adjacent to the iris and secured by suturing in position spanning the pupil.

REFERENCES:
patent: 755921 (1904-03-01), O'Neill
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patent: 3349772 (1967-10-01), Rygg
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patent: 3913148 (1975-10-01), Potthast
patent: 4122556 (1978-10-01), Poler
patent: 4164225 (1979-08-01), Johnson et al.
patent: 4190049 (1980-02-01), Hager et al.
patent: 4198980 (1980-04-01), Clark
patent: 4214585 (1980-07-01), Bailey

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