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Medical device with expansion mechanism

a technology of a medical device and an expansion mechanism, which is applied in the field of medical devices with an expansion mechanism, can solve the problems of difficult collapse of the device for the extraction of vertebra

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

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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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Abstract

Apparatuses and methods for accessing a tissue and expanding an apparatus within the tissue are disclosed herein. In one embodiment, a method includes rotating a distal end portion of an expandable medical device within a biological body such that at least a portion of tissue within the biological body is disrupted. The distal end portion of the medical device defines a plurality of openings in communication with an interior region. After rotating the distal end portion of the medical device, a distal end portion of an elongate member is moved distally within a lumen of the medical device and into the interior region of the distal end portion of the medical device. The elongate member is configured to displace tissue fragments from the interior region. In some embodiments, after the rotating, a fluid is introduced into the interior region of the medical device via the elongate member.

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 herby 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 / 02US 305363-2206, both filed on same date as this application, the entire disclosures of which are hereby incorporated by reference in their entirety.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 ve...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1671A61B17/1617A61B2017/00867A61B2217/005
Inventor SANKARAN, MEERAARCENIO, GREGORY
Owner ORTHOPHOENIX
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