Introducer sheath
First Claim
Patent Images
1. An introducer sheath including an elongate shaft having a proximal end and a distal end comprising:
- a first section at the distal end of the elongate shaft;
a second section proximate the first section;
a third section proximate the second section;
wherein the first section and the second section are predisposed at a first angle, and the second section and the third section are predisposed at a second angle;
an attachment apparatus coupled to the elongate shall adjacent the second angle;
wherein the first section, the second section, and the third section include a lumen passing therethrough; and
wherein the first section is adapted for introduction into a spinal subarachnoid space and the first angle, and intermediate section, are adapted for passage through an interspace.
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Abstract
A variety of devices for use in accessing the subarachnoid space are described. In several embodiments an introducer sheath is disclosed having three main sections, a distal portion, an intermediate portion, and a proximal portion. The distal portion and intermediate portion form a first bend, and the intermediate portion and the proximal portion form a second bend, giving the overall device a general L-shape, S-shape, C-shape, or a three dimensional Z-shape. Apparatuses for attaching an introducer sheath to the skin of a patient are also discussed, as are methods for using, shaping and sizing an introducer sheath.
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Citations
62 Claims
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1. An introducer sheath including an elongate shaft having a proximal end and a distal end comprising:
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a first section at the distal end of the elongate shaft; a second section proximate the first section; a third section proximate the second section; wherein the first section and the second section are predisposed at a first angle, and the second section and the third section are predisposed at a second angle; an attachment apparatus coupled to the elongate shall adjacent the second angle; wherein the first section, the second section, and the third section include a lumen passing therethrough; and wherein the first section is adapted for introduction into a spinal subarachnoid space and the first angle, and intermediate section, are adapted for passage through an interspace. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. An introducer sheath comprising:
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an elongated tubular member; means for allowing the elongated tubular member to include a first section that is adapted to be disposed in a spinal subarachnoid space of a person, a second section adapted to be disposed in an interspace of a person, a third section adapted to extend externally from the person, the second section and the third section predisposed at an angle, and an attachment apparatus coupled elongated tubular member adjacent the angle.
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59. An introducer sheath for use in percutaneous interspinal navigation into a subarachnoid space of a vertebrate organism, the introducer sheath comprising:
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an elongated shaft having a proximal end and a distal end, the shaft including a first section at the distal end and a second section proximal to the first section; the first section and the second section preformed at an angle similar to the angle defined by an interspace between two vertebrae of the organism and the a spinal subarachnoid space of the organism; a third section coupled to the second section, the third section being preformed at an angle relative to the second section and disposed proximally of the second section; and an attachment apparatus attached to the shall adjacent to the angle between the second section and the third section. - View Dependent Claims (60, 61, 62)
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Specification