SURGICAL TOOLS FOR TREATMENT OF SPINAL STENOSIS
First Claim
1. A probe device for positioning a wire around a target tissue, the device comprising:
- a rigid outer cannula having a curved distal region;
a flexible inner cannula slideably disposed within the rigid outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula;
a safety retainer extending distally; and
a distal tip at the end of the inner cannula, the distal tip coupled to the safety retainer.
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Accused Products
Abstract
Described herein are devices and methods for positioning a wire around a target tissue. In some embodiments, a probe device includes a rigid outer cannula having a curved distal region and a flexible inner cannula slideably disposed within the rigid outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula. In some embodiments, the probe device further includes a distal tip at the distal end of the inner cannula and a safety retainer cable coupled to the distal tip and secured to the probe proximally from the distal end of the safety retainer; wherein the safety retainer cable extends proximally from the distal tip and is slack. In some embodiments, the inner cannula comprises an elongate body with a longitudinally extending support member and a longitudinally extending tubular body, configured to pass a wire, disposed inside the elongate body.
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Citations
30 Claims
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1. A probe device for positioning a wire around a target tissue, the device comprising:
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a rigid outer cannula having a curved distal region; a flexible inner cannula slideably disposed within the rigid outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula; a safety retainer extending distally; and a distal tip at the end of the inner cannula, the distal tip coupled to the safety retainer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A probe device for positioning a wire around a target tissue, the probe device comprising:
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a rigid outer cannula having a curved distal region; a flexible inner cannula slideably disposed within the rigid outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula; a distal tip at the distal end of the inner cannula; and a safety retainer cable coupled to the distal tip and secured to the probe proximally from the distal end of the safety retainer;
wherein the safety retainer cable extends proximally from the distal tip and is slack.
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20. A probe device for positioning a wire around a target tissue, the device comprising:
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an outer cannula having a curved distal region; an inner member slideably disposed within the outer cannula, wherein the inner member comprises; an elongate body; a longitudinally extending support member disposed inside the elongate body, and a longitudinally extending tubular body disposed inside the elongate body, configured to assume a curved shape when extended distally from the outer cannula, and configured to pass a wire, and a distal tip coupled to the support member. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A probe device for positioning a wire around a target tissue, the device comprising:
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an outer cannula having a curved distal region sized and configured to be advanced towards a lateral recess and a neural foramen in a patient; an inner cannula slideably disposed within the outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula and configured to extend through the neural foramen and at least partially around an anterior portion of a facet joint and posterior to a spinal disc; and a proximal handle comprising a hand grip region coupled to the outer cannula and a plunger region coupled to the inner cannula.
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30. A probe device for positioning a wire around a target tissue, the device comprising:
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an outer cannula having a curved distal region; an inner cannula slideably disposed within the outer cannula, wherein the inner cannula is configured to assume a curved shape when extended distally from the outer cannula; and a proximal handle comprising a hand grip region coupled to the outer cannula and a plunger region coupled to the inner cannula;
wherein the proximal end of the plunger region comprises a funneled port for insertion of a wire through the probe.
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Specification