Surgery – Respiratory method or device – Ozone or ion generation
Patent
1975-04-21
1976-06-22
Trapp, Lawrence W.
Surgery
Respiratory method or device
Ozone or ion generation
128303B, A61M 500, A61B 1700
Patent
active
039644804
ABSTRACT:
A stereotaxic fixture comprises a cannula angle guide attached to an offset index, a parallel heading guide with intercept chain attached, and a frame which provides fixation for the guides, allowing rapid and secure position readjustment, and which provides retention of orientation between the guides and the lumbar spine of the patient. The cannula angle guide, offset index, and parallel heading guide adjust for depth of each individual disc, identify optimum skin puncture site, and coordinate three planes of cannula passage, providing a safe stereotaxic control of unobstructed puncture of the nucleus pulposus, for injection into the intervertebral disc of radiographic contrast fluids for diagnosis, insertion of diagnostic probes, and for injection of drugs, in particular, chymopapain, to decompress the discs by dissolving nucleus mucoproteins to relieve herniated nucleus pulposus. (See U.S. Pat. No. 3,320,131). The improvement resides in improved means for adjustably assembling the offset index relative to the heading guide support and the offset index relative to the cannula angle guide and also the provision of sleeves of a material such as paper to gauge the position of the cannula guide and depth of penetration of needles into the patient relative to the cannula angle guide.
REFERENCES:
kendall-The Lancet, Feb. 27, 1960.
Ray-The Journal of Bone & Joint Surgery, vol. 35-A, No. 3, July 1953.
Nadvornik et al., Contin. neurol., 34: 311-314 (1972).
Caplan Julian
Trapp Lawrence W.
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