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US 5,312,375 AGranted
Set for spinal anesthesia
OwnerSimon Gurmarnikinventor
Life of this patent
Estimating the term…
Abstract
A set for spinal anesthesia has a spinal needle, a stylet, an introducer needle through which the spinal needle is introduced, and a clamp for fixing the spinal needle to the introducer needle to stabilize the spinal needle.
Claims8
A set for spinal anesthesia, comprising
- a hollow introducer needle;
- a spinal needle introducable through said introducer needle into subarachnoid space;
- a stylet extendable through said spinal needle;
- and
- means for immovably fixing said spinal needle and said introducer needle with one another when said spinal needle enters the subarachnoid space, said spinal needle being freely movable inside said introducer needle between a plurality of locations, said means for immovably fixing said spinal needle and said introducer needle engaging said spinal needle and said introducer nedle transversely to their direction of elongation in any of said plurality of positions and therefore fixing said spinal needle and said introducer needle in any of said plurality of positions.
2 more elements
A set for spinal anesthesia, comprising
- a hollow introducer needle;
- a spinal needle introducable through said introducer needle into subarachnoid space;
- a stylet extendable through said spinal needle;
- means for immovably fixing said spinal needle and said introducer needle with one another when said spinal needle enters the subarachnoid space, said means for immovably fixing said spinal needle and said introducer needle including a screw extending through a wall of said introducer needle and abutting against said spinal needle and
- an elastic member located adjacent to said spinal needle at a side opposite to said screw, so that when said screw abuts again said spinal needle, said spinal needle abuts against said elastic member, said means for immovably fixing said spinal needle and said introducer needle including a squeezable clamp which can be squeezed onto a portion of said introducer needle so as to fixedly connect said needles with one another, said clamp being tubular and has a first section provided with inner teeth and squeezable onto the portion of said introducer needle and a second section provided with inner teeth and squeezable onto the portion of the spinal needle.
2 more elements
Dependencies are inferred from the claim text.