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Medical device with expansion mechanism

Inactive Publication Date: 2008-01-10
ORTHOPHOENIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some medical procedures, while a medical device is cutting tissue, disrupted or cut material, such as tissue within a vertebra, can become lodged within the device making it difficult to collapse the device for extraction from the vertebra.

Method used

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  • Medical device with expansion mechanism
  • Medical device with expansion mechanism
  • Medical device with expansion mechanism

Examples

Experimental program
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Embodiment Construction

[0043] The devices and methods described herein are configured for percutaneous deployment within an interior area of a patient's body, such as within a hard tissue area (e.g., bone structure) or soft tissue area of a patient. In some embodiments, the apparatus and methods disrupt, sever, and / or cut a portion of a tissue within a tissue area. In some embodiments, the apparatus and methods create a cavity within the tissue area. For example, a medical device according to an embodiment of the invention includes an expandable member that can be expanded while disposed within a tissue and rotated or otherwise caused to move such that a cutting portion disposed on the expanded member cuts tissue within the tissue area of the patient.

[0044] In some embodiments a medical device as described herein can be used to distract soft tissue, bone, or other biological material. For example, a medical device according to some embodiments that can be used to prepare a bone, such as a vertebral body,...

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PUM

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Abstract

Apparatuses and methods for accessing a tissue and expanding an apparatus within the tissue are disclosed herein. In one embodiment, an apparatus includes a first elongate body having a distal end portion that includes a plurality of cutting portions, a collapsed configuration and an expanded configuration. The plurality of cutting portions is configured to disrupt at least a portion of tissue within a biological body when the distal end portion is in the expanded configuration. A second elongate body is coupled to the first elongate body. An actuator is operatively coupled to a proximal end portion of the second elongate body and configured to bias the second elongate body such that the distal end portion of the first elongate body is in the expanded configuration. The actuator is configured to move the second elongate body such that first elongate body is in the collapsed configuration when the actuator is actuated.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to U.S. Provisional Patent Application Ser. No. 60 / 818,996, entitled “Medical Device With Dual Expansion Mechanism,” filed Jul. 7, 2006, the entire disclosure of which is hereby incorporated by reference. This application is related to U.S. Patent Application entitled “Medical Device With Dual Expansion Mechanism,” Attorney Docket No. KYPH-021 / 01US 305363-2104, and U.S. Patent Application entitled “Medical Device With Expansion Mechanism,” Attorney Docket No. KYPH-021 / 03US 305363-2207, both filed on same date as this application, the entire disclosures of which are hereby incorporated by reference.BACKGROUND [0002] The invention relates generally to medical devices and procedures, including, for example, a medical device for percutaneously accessing a tissue and expanding the device with a dual expansion mechanism. [0003] Known medical devices are configured to access percutaneously a vertebra or other a...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1617A61B2217/005A61B2017/00867A61B17/1671
Inventor SANKARAN, MEERAHSIEH, ARTHUR S.
Owner ORTHOPHOENIX