Abstract:
A device for enhancing the breathing efficiency of a patient is provided. The implantable device may include a deployed configuration with one or more helical sections with proximal end in a stand-off proximal end configuration. The stand-off proximal end configuration may reduce migration of the deployed device and may preserve implant tissue compression. Alternative configurations may include two or more helical sections with a transition section disposed between the two or more helical sections. A device may include a right-handed helical section and a left-handed helical section and the transition section comprises a switchback transition section. The switchback section may provide greater control of the device during deployment by limiting recoiling forces of a device comprising a spring material. The deployed device may compress the lung to increase a gas filling resistance of the compressed portion of the lung, and/or increase tension and elastic recoil in other portions of the lung.
Abstract:
Embodiments include a transition section for coupling a distal section and a proximal section of the guidewire. The transition section includes a main body having a first outer diameter; proximal and distal pin extensions having second and third outer diameters, wherein the proximal pin extension is configured to be fixed to the proximal section of the guidewire, and the distal pin extension is configured to be inserted into and fixed to the distal section of the guidewire. The distal pin extension includes a bore for receiving an inner core of the distal section of the guidewire. The first outer diameter may be greater than the second and third outer diameters. Also disclosed are methods of manufacturing a guidewire with such a transition section.
Abstract:
A device for enhancing the breathing efficiency of a patient is provided. The implantable device may include a deployed configuration with one or more helical sections with proximal end in a stand-off proximal end configuration. The stand-off proximal end configuration may reduce migration of the deployed device and may preserve implant tissue compression. Alternative configurations may include two or more helical sections with a transition section disposed between the two or more helical sections. A device may include a right-handed helical section and a left-handed helical section and the transition section comprises a switchback transition section. The switchback section may provide greater control of the device during deployment by limiting recoiling forces of a device comprising a spring material. The deployed device may compress the lung to increase a gas filling resistance of the compressed portion of the lung, and/or increase tension and elastic recoil in other portions of the lung.
Abstract:
Guidewires suitable for use in a system for implanting a lung volume reduction device are disclosed. The guidewire includes an outer sheath having proximal and distal ends, and comprising a proximal section, a transition section, and a distal section. The proximal section extends from the proximal end of the sheath to the transition section, and the distal section extends from the transition section to the distal end of the sheath. The distal section defines a bore extending from the transition section to the distal end of the sheath and an inner core having proximal and distal ends. The inner core extends through the bore of the distal section of the sheath, wherein the inner core is fixed to the sheath at the transition section, and wherein the distal end of the inner core is fixed to the distal end of the sheath at the distal end of the sheath.
Abstract:
A device for enhancing the breathing efficiency of a patient is provided. The implantable device may include a deployed configuration with one or more helical sections with proximal end in a stand-off proximal end configuration. The stand-off proximal end configuration may reduce migration of the deployed device and may preserve implant tissue compression. Alternative configurations may include two or more helical sections with a transition section disposed between the two or more helical sections. A device may include a right-handed helical section and a left-handed helical section and the transition section comprises a switchback transition section. The switchback section may provide greater control of the device during deployment by limiting recoiling forces of a device comprising a spring material. The deployed device may compress the lung to increase a gas filling resistance of the compressed portion of the lung, and/or increase tension and elastic recoil in other portions of the lung.
Abstract:
Guidewires suitable for use in a system for implanting a lung volume reduction device are disclosed. The guidewire includes an outer sheath having proximal and distal ends, and comprising a proximal section, a transition section, and a distal section. The proximal section extends from the proximal end of the sheath to the transition section, and the distal section extends from the transition section to the distal end of the sheath. The distal section defines a bore extending from the transition section to the distal end of the sheath and an inner core having proximal and distal ends. The inner core extends through the bore of the distal section of the sheath, wherein the inner core is fixed to the sheath at the transition section, and wherein the distal end of the inner core is fixed to the distal end of the sheath at the distal end of the sheath.
Abstract:
A device for enhancing the breathing efficiency of a patient is provided. The implantable device may include a deployed configuration with one or more helical sections with proximal end in a stand-off proximal end configuration. The stand-off proximal end configuration may reduce migration of the deployed device and may preserve implant tissue compression. Alternative configurations may include two or more helical sections with a transition section disposed between the two or more helical sections. A device may include a right-handed helical section and a left-handed helical section and the transition section comprises a switchback transition section. The switchback section may provide greater control of the device during deployment by limiting recoiling forces of a device comprising a spring material. The deployed device may compress the lung to increase a gas filling resistance of the compressed portion of the lung, and/or increase tension and elastic recoil in other portions of the lung.