摘要:
Systems, devices, and methods for organ Retroperfusion along with regional mild hypothermia. One such system includes a hypothermia system including a hypothermia system outlet and a hypothermia system inlet; and a connector comprising a coolant inlet, a coolant outlet, a coolant reservoir, and a blood lumen, whereby the coolant inlet is configured to couple to the hypothermia system outlet and whereby the coolant outlet is configured to couple to the hypothermia system inlet; whereby a cooling product, when the hypothermia system is connected to the connector, can flow from the hypothermia system, through the hypothermia system outlet, into the coolant inlet, through the coolant reservoir, into the coolant outlet, and into the hypothermia system inlet, so that the cooling product can cool blood flowing through the blood lumen.
摘要:
Methods and devices for controlling blood perfusion pressure along with regional mild hypothermia. In at least one embodiment of a device for controlling blood perfusion pressure within a vessel of the present disclosure, the device comprises an elongated body having a lumen, a proximal end configured for placement in a first area having a first blood pressure, and a distal end configured for placement in a second area having a second blood pressure, a partial occluder positioned within the lumen of the elongated body between the proximal end and the distal end, the partial occluder configured so not to fully occlude a blood vessel and to equalize the first blood pressure at the first area with the second blood pressure at the second area, and a regional hypothermia system operably coupled thereto, the regional hypothermia system operable to reduce and/or regulate a temperature of a bodily fluid flowing therethrough.
摘要:
Peripheral arterialization devices and methods of using the same. In an exemplary embodiment of a catheter for facilitating venous arterialization of the present disclosure, the catheter comprises an elongated body extending from a proximal end to a distal end and having a lumen defined therethrough along a longitudinal length of the elongated body, the elongated body configured to attach to a graft at or near the proximal end of the elongated body and further configured to permit fluid to flow through the graft, through the lumen, and out of one or more apertures defined within the elongated body at or near the distal end to facilitate venous arterialization upon at least partial implantation of the catheter into a vein of a patient.
摘要:
Systems and methods for cryoablation of a tissue. In at least one embodiment of a cryoablation system of the present disclosure, the cryoablation system comprises an expandable stent comprising a proximal end and a distal end, a sidewall defining a lumen extending between the proximal end and the distal end, and a cryoablation chamber at the distal end, the expandable stent configured to permit blood flow therethrough, and a cryoablation device comprising at least one coolant tube at least partially positioned within the cryoablation chamber, wherein the at least one coolant tube is operable to produce a cryogenic environment sufficient to ablate at least a portion of a tissue engaged within the cryoablation chamber.
摘要:
Tissue restoration devices, systems, and methods. In at least one embodiment, an implantable restraining device of the present disclosure comprises a first engaging component and a second engaging component, each component configured for laparoscopic insertion into a body cavity, a first swivel arm defining a first bend and a second swivel arm defining a second bend, the first swivel arm coupled to the first engaging component at a first pivot point and coupled to the second engaging component at a second pivot point, and the second swivel arm coupled to the first engaging component at a third pivot point and coupled to the second engaging component at a fourth pivot point, and a first interconnection arm and a second interconnection arm, the first interconnection arm connected to the first swivel arm relative to the first bend, and the second interconnection arm connected to the second swivel arm relative to the second bend.
摘要:
Systems for engaging a bodily tissue and methods of using the same. In at least one embodiment of an exemplary system for use with a vacuum source for engaging a tissue of the present disclosure, the system comprises an engagement catheter comprising a proximal end, a distal end, first and second lumens extending between the proximal end and the distal end, and a skirt operatively connected to the distal end, an inducer sheath having a proximal portion, a distal portion, and a lumen extending therethrough, the inducer sheath configured so that it is capable of insertion into the second lumen of the engagement catheter, a dilator comprising a tapered tip at a distal end and a hollow channel extending therethrough, the dilator sized and shaped for insertion into the lumen of the inducer sheath, and a vacuum port located at the proximal end of the engagement catheter, the vacuum port being operatively connected to the first lumen of the engagement catheter and capable of operative connection to a vacuum source. In various embodiments, the systems further comprise an inflatable balloon at or near the distal portion of the inducer sheath.
摘要:
An engagement catheter for use with a vacuum source for engaging a tissue. An embodiment of the engagement catheter includes a first lumen extending between a proximal end and a distal end, a skirt operatively connected to the distal end, the skirt having a distal end with a circumference larger than the outer circumference of the engagement catheter, a suction port located at or near the distal end of the engagement catheter, the suction port configured to allow the distal end of the skirt to removably engage a surface of a bodily tissue, and a vacuum port located at the proximal end of the engagement catheter and capable of operative connection to a vacuum source, wherein when a vacuum source is operatively attached to the vacuum port, the skirt is capable of forming a reversible seal with the surface of the bodily tissue.
摘要:
Endoprosthesis assemblies and methods for using the same. In at least one embodiment of an endoprosthesis assembly of the present disclosure, the endoprosthesis assembly comprises an endoprosthesis comprising an impermeable inner wall defining an endoprosthesis lumen sized and shaped to permit fluid to flow therethrough, a distal balloon positioned at or near a distal end of the endoprosthesis, the distal balloon capable of inflation to anchor the distal end of the endoprosthesis within a luminal organ, and a proximal balloon positioned at or near a proximal end of the endoprosthesis, the proximal balloon capable of inflation to anchor the proximal end of the endoprosthesis within the luminal organ, wherein when the endoprosthesis assembly is positioned within the luminal organ at or near an aneurysm sac, inflation of the distal balloon and the proximal balloon effectively isolates the aneurysm sac and prevents fluid within the aneurysm sac from flowing past the distal balloon and the proximal balloon and into other areas of vasculature adjacent to the aneurysm sac.
摘要:
Devices and methods for assisting cardiac function. In an exemplary embodiment of a device for assisting heart function of the present disclosure, the device comprises a first plate and an opposing second plate, each plate having an inner surface, a cardiac processor coupled to at least one of the first plate and the second plate, a bladder having an inner chamber and disposed between the inner surfaces, and a first catheter having a proximal end in communication with the inner chamber of the bladder and a distal end having a first pericardial balloon coupled thereto, wherein a gas and/or a liquid within the inner chamber of the bladder can be injected into the first pericardial balloon upon compression of the first plate relative to the second plate, and wherein the gas and/or the liquid can be removed from the first pericardial balloon upon retraction of the first plate relative to the second plate.
摘要:
Methods for occluding an atrial appendage. The steps of an exemplary method include introducing at least a portion of the first device in a heart, introducing at least a portion of a second device into a pericardial space surrounding the heart, positioning the balloon of the first device at least partially within an atrial appendage cavity, inflating the balloon to displace blood present within the atrial appendage cavity, positioning the loop of the second device around the atrial appendage, tightening the loop around the atrial appendage, deflating the balloon to allow for ultimate removal of the first device from the atrial appendage cavity, and separating the loop from the second device so that the loop remains positioned and tightened around the atrial appendage.