Apparatus and methods for introducing portals in bone
First Claim
1. An apparatus for introducing a bone portal into a bone of a subject, the apparatus comprising:
- a handle;
a base detachably coupled to the handle by a mechanism comprising a base coupling,a driving member projecting from a carrier assembly that is slidably received within the handle;
a ratchet operatively coupled between the carrier assembly and the handle, the ratchet oriented to permit the carrier assembly to move toward a distal end of the handle and to resist motion of the carrier assembly away from the distal end of the handle; and
,a release mechanism operative to block the carrier assembly from moving toward the distal end of the handle until the release mechanism is triggered;
wherein the driving member is movable between a first position wherein the driving member is retracted behind the base to a second position wherein the driving member projects past the base by operating the handle and the base is detachable from the handle by release of the base coupling, wherein the base coupling comprises an actuating member arranged so that operation of the handle to move the driving member to its second position results in the actuating member being moved to uncouple the base from the handle.
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Accused Products
Abstract
An apparatus and method for introducing portals into bone is described herein. An example apparatus for introducing portals into bone includes a handle, a base, and a driving member. The driving member can be made to project past the base by operating the handle. The base is detachable from the handle. The apparatus also includes a guide coupled at a first end to the handle and at a second end to the base. The base is detachably coupled to the guide. A base coupling detachably coupling the base to the guide includes an actuating member movable between a coupled configuration wherein the base is coupled to the guide and an uncoupled configuration wherein the base is released from the guide. The actuating member is arranged so that motion of the handle toward the base moves the actuating member from the coupled configuration to the uncoupled configuration.
92 Citations
20 Claims
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1. An apparatus for introducing a bone portal into a bone of a subject, the apparatus comprising:
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a handle; a base detachably coupled to the handle by a mechanism comprising a base coupling, a driving member projecting from a carrier assembly that is slidably received within the handle; a ratchet operatively coupled between the carrier assembly and the handle, the ratchet oriented to permit the carrier assembly to move toward a distal end of the handle and to resist motion of the carrier assembly away from the distal end of the handle; and
,a release mechanism operative to block the carrier assembly from moving toward the distal end of the handle until the release mechanism is triggered; wherein the driving member is movable between a first position wherein the driving member is retracted behind the base to a second position wherein the driving member projects past the base by operating the handle and the base is detachable from the handle by release of the base coupling, wherein the base coupling comprises an actuating member arranged so that operation of the handle to move the driving member to its second position results in the actuating member being moved to uncouple the base from the handle. - View Dependent Claims (2, 3, 4)
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5. Apparatus for introducing a bone portal into a bone, the apparatus comprising:
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a handle; a carrier assembly slidably received within the handle; a release mechanism operative to block motion of the carrier toward a distal end of the handle until the release mechanism is triggered, the release mechanism comprising a member contacting the carrier assembly and the handle, a trigger member and a bone probe coupled to move the trigger member in response to motion of the bone probe toward the distal end of the handle, wherein the movement of the trigger member triggers the release mechanism; a stylet projecting from the carrier assembly; and a one-way mechanism connected between the carrier assembly and the handle, the one-way mechanism operative to permit the carrier assembly to move toward a distal end of the handle and to resist motion of the carrier assembly away from the distal end of the handle. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification