NEUROSURGICAL DEVICES AND ASSOCIATED SYSTEMS AND METHODS
First Claim
1. A neurosurgical catheter, comprising:
- a body having a lumen; and
a surface disrupter movable within the lumen along a length of the neurosurgical catheter and extendable from a distal end of the lumen, wherein the surface disrupter includes a distal portion and a proximal portion, wherein the distal portion is substantially blunt, and wherein the proximal portion includes a cutting edge.
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Accused Products
Abstract
Neurosurgical devices including or used with cannulas or catheters and associated systems and methods are disclosed herein. The neurosurgical devices can include, for example, a cannula having a main portion and an angle-forming member proximate a distal end of the main portion. The angle-forming member can be configured to transition from a substantially straight configuration while the cannula is advanced through tissue along a substantially straight first portion of a path to an angled configuration when the angle-forming member reaches an end of the substantially straight first portion of the path. The neurosurgical devices also can include, for example, a neurosurgical catheter including a surface disrupter, an elongated macerator, or a lateral opening. Neurosurgical catheterization portals also are disclosed. The neurosurgical catheterization portals can, for example, have an adjustable portal that is movable relative to a body to accommodate different entry angles of a catheterization path.
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Citations
52 Claims
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1. A neurosurgical catheter, comprising:
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a body having a lumen; and a surface disrupter movable within the lumen along a length of the neurosurgical catheter and extendable from a distal end of the lumen, wherein the surface disrupter includes a distal portion and a proximal portion, wherein the distal portion is substantially blunt, and wherein the proximal portion includes a cutting edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A neurosurgical catheter, comprising:
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a body at least partially defining a lumen; a surface disrupter extended or extendable from a distal end of the lumen; and an elongated macerator positioned with the lumen and rotatable around an axis substantially collinear with a length of the body. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A neurosurgical catheter, comprising:
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a body at least partially defining a lumen; a lateral opening extending through a wall of the body and into the lumen at a distal portion of the neurosurgical catheter; and a surface disrupter movable within the lumen along a length of the neurosurgical catheter such that at least a portion of the surface disrupter slides through the lumen proximate the lateral opening. - View Dependent Claims (24, 25)
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26. A neurosurgical catheter, comprising:
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a body at least partially defining a lumen with a distal opening; and a suction conduit within the lumen, the suction conduit having a main portion and a plug, the plug at least partially defining a plug chamber with a distal opening and a proximal opening into the plug chamber, wherein the plug is rotatable between (a) a first position in which the distal opening of the body and the distal opening into the plug chamber are substantially aligned and the proximal opening into the plug chamber and the distal opening of the main portion of the suction conduit are not substantially aligned and (b) a second position in which the distal opening of the body and the distal opening into the plug chamber are not substantially aligned and the proximal opening into the plug chamber and the distal opening of the main portion of the suction conduit are substantially aligned. - View Dependent Claims (27)
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28. A neurosurgical catheterization portal, comprising:
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a body configured to be mounted to a surface of a neurosurgical catheterization entry site; and an adjustable portal having a directional portion at least partially defining a lumen, wherein the lumen is elongated and substantially straight, the neurosurgical catheterization portal has a first configuration in which the adjustable portal is movable relative to the body to angle the directional portion or rotate the directional portion and a second configuration in which the adjustable portal is fixed relative to the body. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A neurosurgical system, comprising:
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a cannula; and an angle-forming member proximate a distal end of the cannula, wherein the cannula is substantially straight and substantially rigid, and wherein the angle-forming member is configured to transition from a substantially straight configuration while the angle-forming member is advanced through tissue along a substantially straight first portion of a path to an angled configuration when the angle-forming member reaches an end of the substantially straight first portion of the path. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45)
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46. A neurosurgical method, comprising:
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advancing a cannula having a main portion and an angle-forming member through brain tissue along a first portion of a path to a target area, the main portion being substantially straight, the angle-forming member having a first configuration in which the angle-forming member is substantially straight and a second configuration in which a lumen of the angle-forming member is curved, wherein the first portion of the path is substantially straight, and the angle-forming member is in the first configuration while the cannula is advanced along the first portion of the path; actuating the angle-forming member to cause the angle-forming member to change from the first configuration to the second configuration after advancing the cannula along the first portion of the path; and advancing a catheter through the cannula after actuating the angle-forming member such that the catheter extends through a curve of the lumen of the angle-forming member in the second configuration. - View Dependent Claims (47, 48, 49, 50, 51, 52)
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Specification