Abstract:
An expandable structure carried at the end of a catheter tube assembly can be contracted and/or wrapped to present a reduced profile during deployment and/or removal from a targeted tissue site.
Abstract:
Devices and methods compress cancellous bone. In one arrangement, the devices and methods make use of an expandable body that includes an internal restraint coupled to the body. The internal restraint directs expansion of the body. In one arrangement, a method for treating bone inserts the device having the internal restraint inside bone and causes directed expansion of the body in cancellous bone. Cancellous bone is compacted by the directed expansion.
Abstract:
An expandable structure made from an elastomer material is preformed to a desired geometry by exposure to heat and pressure. The structure undergoes controlled expansion and further distention in cancellous bone, with controlled deformation and without failure.
Abstract:
A balloon for use in compressing cancellous bone and marrow (also known as medullary bone or trabecular bone) against the inner cortex of bones whether the bones are fractured or not. The balloon comprises an inflatable, non-expandable balloon body for insertion into said bone. The body has a shape and size to compress at least a portion of the cancellous bone to form a cavity in the cancellous bone and to restore the original position of the outer cortical bone, if fractured or collapsed. The balloon is prevented from applying excessive pressure to the outer cortical bone. The wall or walls of the balloon are such that proper inflation the balloon body is achieved to provide for optimum compression of all the bone marrow. The balloon is able to be folded so that it can be inserted quickly into a bone. The balloon can be made to have a suction catheter. It can also be coated with therapeutic substances. The main purpose of the balloon is the forming or enlarging of a cavity or passage in a bone, especially in, but not limited to, vertebral bodies. Another important purpose is to deliver therapeutic substances to bone in an improved way.
Abstract:
A vertebral body having an interior volume occupied, at least in part, by cancellous bone is selected for treatment. A percutaneous path is established into the vertebral body. A tool is introduced through the percutaneous path that creates a cavity in the cancellous bone. A bone filling material is conveyed to substantially fill the cavity. The bone filling material is pressurized within the cavity to enlarge the cavity.
Abstract:
Apparatuses for performing minimally invasive medical procedures are disclosed herein. In one example, an apparatus includes an outer body that defines an opening at a distal end, and a cutting portion disposed at an edge of the opening. An inner body is movably disposed within the outer body and defines an opening at a distal end. The outer body and the inner body collectively have a first configuration in which the opening on the outer body is substantially aligned with the opening on the inner body and the opening on the outer body is configured to receive a portion of a tissue, and a second configuration in which the opening on the outer body and the opening on the inner body are substantially misaligned and the cutting portion on the outer body is configured to sever the portion of the tissue from a remaining portion of the tissue.
Abstract:
A structure adapted to assume an expanded geometry having a desired configuration when used in bone includes material that limits the expanded geometry. The structure undergoes stress when expanded during its first use in bone. As a result, the structure can not be relied upon to reach its desired configuration during subsequent use in bone. Accordingly, the structure is packaged in a sterile kit, which verifies to the physician or user that the device packaged within it is sterile and has not be subjected to prior use. The physician or user is thereby assured that the expandable structure meets established performance and sterility specifications, and will have the desired configuration when expanded for use.
Abstract:
Devices and methods compress cancellous bone. In one arrangement, the devices and methods make use of an expandable body that includes an internal restraint coupled to the body. The internal restraint directs expansion of the body. In one arrangement, a method for treating bone inserts the device having the internal restraint inside bone and causes directed expansion of the body in cancellous bone. Cancellous bone is compacted by the directed expansion.
Abstract:
Systems and methods treat fractured or diseased bone by deploying more than a single therapeutic tool into the bone. In one arrangement, the systems and methods deploy an expandable body in association with a bone cement nozzle into the bone, such that both occupy the bone interior at the same time. In another arrangement, the systems and methods deploy multiple expandable bodies, which occupy the bone interior volume simultaneously. Expansion of the bodies form cavity or cavities in cancellous bone in the interior bone volume.
Abstract:
An expandable device is introduced into a cancellous bone volume of a vertebral body through a percutaneous access path. The expandable device is expanded while disposed within the cancellous bone volume to create a cavity. A volume of filling material is placed within the cavity. The filling material includes a therapeutic substance.