초록 ▼

A method for introducing an injectable medicament into a subarachnoid space of a patient includes advancing a subarachnoid needle into the subarachnoid space. The subarachnoid needle has an elongate passage with a sidewall, a proximal end and a distal end that has a closed point and at least two ope

A method for introducing an injectable medicament into a subarachnoid space of a patient includes advancing a subarachnoid needle into the subarachnoid space. The subarachnoid needle has an elongate passage with a sidewall, a proximal end and a distal end that has a closed point and at least two openings through the sidewall located at a distance from the closed point. The method includes establishing a fluid communication between the subarachnoid space and the passageway through the openings, then introducing the medicament into the subarachnoid space of the patient through the passageway.

대표청구항 ▼

[ What is claimed is:] [1.] A method for introducing an injectable medicament into a subarachnoid space of a patient comprising:placing an elongate introducer having a distal point and a hollow bore therethrough into an epidural space of the patient until said distal point is in close approximation

[ What is claimed is:] [1.] A method for introducing an injectable medicament into a subarachnoid space of a patient comprising:placing an elongate introducer having a distal point and a hollow bore therethrough into an epidural space of the patient until said distal point is in close approximation to a dural membrane of the patient, said bore of said introducer having an internal diameter larger than an external diameter of a subarachnoid needle;providing a subarachnoid needle having an external diameter and comprising an elongate passageway having a sidewall, a proximal end and a distal end including a closed point, said subarachnoid needle having two diametrically opposed openings through said sidewall located a distance from said closed point;positioning said distal end of said subarachnoid needle into said bore of said introducer;advancing said subarachnoid needle through said bore of said introducer until said distal end of said subarachnoid needle penetrates the dural membrane of the patient;establishing a fluid communication between the subarachnoid space and said passageway through said openings; andintroducing a medicament into the subarachnoid space of the patient through said passageway through said two openings.