摘要:
A minimally invasive dilation device includes a plurality of rigid arms radially arrayed about a center and a dilating member positioned between the arms. A stylus may occupy the center. An outer flexible sleeve may be circumferentially secured to the arms, lying within or without the plurality of arms. An inner mesh may surround the stylus and dilating member. The device may be introduced into tissue toward a targeted area, while in a closed configuration. The dilating member may be a balloon, wherein upon inflation of the balloon, the arms are pushed radially outward, expanding the device and dilating the surrounding tissue. The dilating member may be a tube, wherein upon insertion of the tube, the arms are pushed radially outward. A cannula may be inserted inside the plurality of arms to keep the arms in an open configuration, and the dilating member may be withdrawn, providing an open passageway through the device to the targeted area. The device may be used with a neural monitoring system.
摘要:
A minimally invasive dilation device includes a plurality of rigid arms radially arrayed about a center and a dilating member positioned between the arms. A stylus may occupy the center. An outer flexible sleeve may be circumferentially secured to the arms, lying within or without the plurality of arms. An inner mesh may surround the stylus and dilating member. The device may be introduced into tissue toward a targeted area, while in a closed configuration. The dilating member may be a balloon, wherein upon inflation of the balloon, the arms are pushed radially outward, expanding the device and dilating the surrounding tissue. The dilating member may be a tube, wherein upon insertion of the tube, the arms are pushed radially outward. A cannula may be inserted inside the plurality of arms to keep the arms in an open configuration, and the dilating member may be withdrawn, providing an open passageway through the device to the targeted area. The device may be used with a neural monitoring system.
摘要:
A minimally invasive dilation device includes a stylus, a plurality of rigid arms radially arrayed about the stylus, and a dilating member positioned between the stylus and the arms. An outer flexible sleeve may be circumferentially secured to the arms, lying within or without the plurality of arms. An inner mesh may surround the stylus and dilating member. The device may be introduced into tissue toward a targeted area, while in a closed configuration. The dilating member may be a balloon or a cannula. During dilation, the arms are pushed radially outward, expanding the device and dilating the surrounding tissue. A cannula may be inserted inside the plurality of arms to keep the arms in an open configuration, and the stylus and inner mesh may be withdrawn, providing an open passageway through the device to the targeted area. The device may be used with a neural monitoring system.
摘要:
A device and method for selectively engaging or penetrating a layer of a luminal organ wall where the luminal organ wall has a plurality of layers including an outermost layer and an innermost layer adjacent to the lumen of the organ. The device and method select one of the plurality of layers of the organ wall other than the innermost layer and deploy from within the lumen of the organ a tissue device through the innermost layer to a specific depth to engage or penetrate the selected one of the plurality of layers. The device and method may be employed to create luminal pouches or restrictive outlets. In a stomach organ, the device and methods may be employed to treat obesity by forming a gastric pouch with or without a restrictive outlet.
摘要:
A bone block for insertion into a patient's intervertebral space. A method for inserting a bone block into a patient's intervertebral space, comprising: supporting the bone block in an inserter; advancing the inserter into the intervertebral space; rotating the inserter, thereby separating adjacent vertebrae; separating the bone block and the inserter with a push rod; and removing the inserter from the intervertebral space.
摘要:
A device and method for selectively engaging or penetrating a layer of a luminal organ wall where the luminal organ wall has a plurality of layers including an outermost layer and an innermost layer adjacent to the lumen of the organ. The device and method select one of the plurality of layers of the organ wall other than the innermost layer and deploy from within the lumen of the organ a tissue device through the innermost layer to a specific depth to engage or penetrate the selected one of the plurality of layers. The device and method may be employed to create luminal pouches or restrictive outlets. In a stomach organ, the device and methods may be employed to treat obesity by forming a gastric pouch with or without a restrictive outlet.
摘要:
A system and method for discriminating tissue types, controlling the level of therapy to tissue, and determining the health or a known tissue by measuring the characteristics an electrical signal applied to conductive element located within or by the tissue. Additionally, the system and method may be used for determining whether the conductive tip of a pedicle probe or pedicle screw is located in one of cortical bone, cancellous bone, and cortical bone near a boundary with soft tissue, whether the conductive tip of a cannula is located adjacent to one of nerve tissue and annulus tissue, and whether the conductive tip of a cathode is located adjacent to one of nerve tissue and prostate gland tissue.
摘要:
A device and method for selectively engaging or penetrating a layer of a luminal organ wall where the luminal organ wall has a plurality of layers including an outermost layer and an innermost layer adjacent to the lumen of the organ. The device and method select one of the plurality of layers of the organ wall other than the innermost layer and deploy from within the lumen of the organ a tissue device through the innermost layer to a specific depth to engage or penetrate the selected one of the plurality of layers. The device and method may be employed to create luminal pouches or restrictive outlets. In a stomach organ, the device and methods may be employed to treat obesity by forming a gastric pouch with or without a restrictive outlet.
摘要:
An injection apparatus includes components that facilitate injection of relatively viscous materials into a patient. An injection apparatus may include a transition-bore needle apparatus, which has a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, in which the diameter of the proximal end is greater than the diameter of the distal end. An injection apparatus may include a hand-held injection facilitation apparatus, which may be coupled to a syringe. The hand-held injection facilitation apparatus can include a pivot arm and a body with a rod disposed within the body and coupled to the pivot arm. Movement of the pivot arm results in a proximal or distal movement of the rod within the body to effectively cause material to be expelled from the syringe. An injection apparatus may include a transition-bore needle apparatus and a hand-held injection facilitation apparatus in combination.
摘要:
A surgical device for expanding and viewing tissue is disclosed. The surgical device includes a handle, an insertion probe, and at least one window disposed within the insertion probe. The handle has a proximal end and a distal end, and the handle is sized and shaped to be held by a surgeon. The insertion probe has a proximal end, a distal end, and a longitudinal axis extending between the proximal end and the distal end. The proximal end of the insertion probe is removably attached to the distal end of the handle. The window extends along a length of the longitudinal axis, and has an opening that is sufficient in size to allow tissue to prolapse through the window and into the insertion probe.