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US 2008/0188827 A1Published application
Methods and devices for treating tissue
AssigneeLaurimed, LLC
InventorsJeffrey Alan Saal, Joel Stuart Saal, Brian Robert DuBois
Life of this patent
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Abstract
Device and method are provided for diagnosing and treating diseases and injuries to the spine by injecting drugs into the diseased or injured area. The device and method of the subject invention provide improvements to patient and operator safety, along with ease-of-use and convenience improvements over conventional techniques.
Claims18
A method of delivering substances into an injection site in an epidural space of a patient, the method comprising:
- providing a needle cannula having a needle lumen and an injection tubing extending through the needle lumen, where the injection tubing comprises an injection lumen;
- fluidly coupling a source of a radiopaque material to the injection lumen and independently fluidly coupling a source of a first therapeutic substance to the injection lumen, where such coupling occurs prior to inserting the needle cannula into the patient;
- inserting a distal end of the needle cannula so that it is spaced a distance from the intended injection site;
- advancing the injection tubing through the needle cannula to advance a tip of the injection tubing from the distal end of the needle cannula to the injection site;
- delivering the radiopaque material through the injection lumen to the epidural space to verify placement of the tip of the injection tubing;
- and
- delivering the first therapeutic substance through the injection lumen to the epidural space without disconnecting the source of the radiopaque material from the needle lumen.
4 more elements
A method of delivering a substance at an injection site near a vertebral body in a patient, the method comprising:
- providing an injection system including a needle cannula having a needle lumen extending therethrough and an injection tubing having a curved shape at a distal portion, where the injection tube is slidably located in the needle lumen to move between a retracted position and a deployed position, where in the retracted position the injection tubing remains within the within the needle lumen and in the deployed position, the injection tubing extends out of a far end of the needle cannula;
- advancing a tip of the needle cannula into the patient so that the tip is positioned adjacent to the vertebral body;
- and
- advancing the distal end of the injection tube around a feature of the vertebral body into the foramen by advancing the injection tube within the needle cannula such that the distal portion exits the injection tube and assumes the curved shape.
1 more element
Dependencies are inferred from the claim text.