Patent application number | Description | Published |
20080208180 | ENDOVASCULAR TREATMENT SHEATH HAVING A HEAT INSULATIVE TIP AND METHOD FOR USING THE SAME - A treatment sheath for use with an energy delivery device, such as an optical fiber, is provided with a heat insulative tip. The treatment sheath includes a longitudinal shaft which is designed to receive the optical fiber, and is inserted into a blood vessel to treat diseases such as varicose veins. During treatment, the energy emitting face of the optical fiber is positioned inside the heat insulative tip of the treatment sheath. The heat insulative tip protects the optical fiber emitting face during the delivery of laser energy and prevents the emitting face from inadvertently contacting the inner vessel wall. | 08-28-2008 |
20080208236 | DERMAL MARKING FOR USE WITH A MEDICAL DEVICE - A dermal marking and a method of identifying the characteristics of an implanted medical device using the dermal marking. The method involves providing an implantable medical device, implanting a medical device in a patient, providing at least one dermal marking that contains information disclosing at least one characteristic of the implanted medical device, applying the at least one dermal marking to the skin of the patient, perceiving the dermal marking on the patient's skin, and identifying at least one characteristic of the implantable medical device based on the dermal marking. | 08-28-2008 |
20080249399 | ENDOVASCULAR TREATMENT APPARATUS AND METHOD - An endovascular sheath device for use with a thermal treatment apparatus is provided. The device includes a longitudinal tube which is designed to receive a thermal treatment device and is designed to be inserted into a blood vessel. An ultrasonically visible reinforcement element is disposed along the length of the longitudinal tube. The reinforcement element such as a braided wire provides several functions including increased visibility under ultrasound, clearer identification of sheath tip, and increased durability to protect the fiber from needle punctures during tumescent injections into the perivenous space. The wire reinforcement also increases shaft torquability and kink resistance during sheath insertion and withdrawal. | 10-09-2008 |
20080287939 | ENDOVASCULAR THERMAL TREATMENT DEVICE WITH FLEXIBLE GUIDE TIP AND METHOD - An elongated thermal energy delivery device for use in endovenous thermal treatment of blood vessel is provided. The energy device includes a flexible guide tip attached to its distal portion which provides for direct tracking and advancement of the energy device through the vein without the use of a treatment sheath. Also provided is a method of using the thermal energy delivery device with flexible guide tip. The method eliminates the need for a treatment sheath and accessory procedural components and the procedural steps associated with these components. | 11-20-2008 |
20080294188 | Implant Holder and Method of Deploying the Implant - An implant holder for use with a delivery catheter to deploy an implant, such as a filter, in a tubular body part is provided. The holder includes a cartridge body having a lumen extending between two ends and holding a collapsed implant, and an implant image disposed on the cartridge body. The implant image has an axial orientation corresponding to the axial orientation of the implant held in the cartridge body lumen. The axial orientation of the implant image helps to guide a physician in correctly orienting the implant regardless of which access point is used, thereby reducing the chance of deploying the implant in the wrong axial direction. | 11-27-2008 |
20090038752 | REINFORCED BALLOON FOR A CATHETER - An inflatable balloon, and method of making same, for a medical catheter includes a base layer or non-compliant balloon substrate, a reinforcing layer, an adhesive. layer adhering the reinforcing layer to the non-compliant balloon substrate, and a top coat layer. The reinforcing layer is a single ply matrix of interwoven strands applied to the non-compliant balloon substrate. There are preferably three sets of strands in the single ply matrix. One set of strands extends in a longitudinal direction. Another set of strands extends circumferentially in a helical fashion with a clockwise orientation at an angle of approximately 65° with the strands that extend in the longitudinal direction. The third set of strands extends circumferentially in a helical fashion with a counter-clockwise orientation at an angle of approximately 65° with the strands that extend in the longitudinal direction. The three sets of strands are interwoven with one another by a braiding machine so as to provide a single ply of interwoven strands to achieve a uniform, reproducible reinforcing matrix. | 02-12-2009 |
20090131924 | Endovascular Thermal Treatment Device with Carrier Wire and Method - An endovenous thermal treatment device in which a thermal energy delivery device can be inserted into a blood vessel without the use of a treatment sheath is provided. The treatment device includes a carrier wire having a flexible distal section and a longitudinal energy delivery device having a distal energy emitting section. A coupler couples the carrier wire and the energy delivery device so that they are inserted together into a blood vessel. | 05-21-2009 |
20090157051 | Catheter with open faced end portion - A vascular access catheter that has a substantially distal end portion that has a distal tip. The distal end portion has a sloped face in the distal portion of the catheter, an outflow lumen aperture, and a second inflow lumen aperture. The outflow lumen aperture is substantially completely open in the sloped face and exits the distal portion adjacent the distal tip. The catheter has a guidewire lumen that is located at least in the region of the distal portion of the catheter and is capable of receiving a guidewire. The guidewire lumen has a proximal aperture and a distal aperture that extends distally of the outflow lumen aperture. The guidewire distal aperture exits at the distal most edge of the distal end portion. The guidewire lumen may extend a partial length of the catheter or substantially the entire length of the catheter. The catheter distal portion may be substantially straight or curved. | 06-18-2009 |
20090259220 | Treatment Devices and Methods - Systems disclosed herein contain a source for providing one or more energy sources as well as substances singly or in combination, and a kit containing a delivery device. The delivery device is configured to be releasably coupled to the source for delivering the energy as well as the substances to a location remote from the source which may include delivery for a patient. | 10-15-2009 |
20090264875 | Method of Treating a Blood Vessel with an Optical Fiber Having a Spacer - An endovascular laser treatment device designed to be used with an optical fiber to treat venous diseases such as varicose veins is provided. The device includes a expandable separator that positions the distal end of the optical fiber away from the inner wall of the blood vessel during delivery of laser energy to provide an even distribution of thermal energy around the vessel, thereby avoiding vessel perforation and incomplete vessel collapse. | 10-22-2009 |
20090281477 | ELECTROPORATION DEVICE AND METHOD - Disclosed herein are methods and devices configured for pulsed voltage ablation that have two or more voltage delivery regions separated along a probe by electrically insulating regions. The electrically insulating regions are of sufficient lengths to allow the voltage delivery regions to be oppositely energized for delivering voltage pulses to treat cells within a predetermined ablation volume that can be delineated through representations indicating pulsed voltage ablation thresholds for cells. | 11-12-2009 |
20090287242 | Method of Retrieving a Blood Clot Filter - A compact retrievable blood clot filter has a filter section, a releasable lock and an alignment section connected to the filter section. Alignment ribs of the alignment section have releasable upstream ends that are locked to the filter by the releasable lock. The releasable upstream ends of the alignment ribs are capable of being released from the releasable lock so that during retrieval of the filter, the alignment ribs can slide through the endothelial tissue that may have grown around the alignment ribs. | 11-19-2009 |
20090326512 | ENDOVASCULAR TUMESCENT INFUSION APPARATUS AND METHOD - A tumescent fluid infusion apparatus for use in treatment of a vascular disease includes a needle attached to a valve device. The valve device is designed to receive tumescent fluid from a fluid source. When the valve device is in an open position, it administers the tumescent fluid from the fluid source through the needle channel to allow a single hand of a user to control the needle insertion and the infusion of the tumescent fluid to free the other hand for operating a probe such as an ultrasound probe to eliminate the requirement of a second operator. The infusion apparatus also allows a user to control the amount of infused fluid without requiring syringe changes. | 12-31-2009 |
20100069883 | VARIABLE CHARACTERISTIC VENOUS ACCESS CATHETER SHAFT - A central venous catheter is provided having a proximal tube segment, a distal tube segment and a transition tube segment interposed between the proximal and distal tube segments which are preferably formed as a single integrated tube containing polymer material of different durometer and varying amounts of radiopaque filler material. The polymer durometer of the proximal segment is higher than the polymer durometer of the distal segment. By contrast, the percentage by weight of the filler material contained in the distal segment is higher than that of the proximal segment. The variation in the polymer durometer and the filler amount along the length of the tube provide the desired tensile strength, hardness, chemical resistance and fatigue resistance at the proximal segment and at the same time provide the desired flexibility and radiopacity at the distal segment. | 03-18-2010 |
20100152725 | METHOD AND SYSTEM FOR TISSUE TREATMENT UTILIZING IRREVERSIBLE ELECTROPORATION AND THERMAL TRACK COAGULATION - A system for selectively ablating tissue is provided herein that has at least one energy source that has a non-thermal energy source and a thermal energy source, at least one probe, means for selectively coupling the probe to one desired energy source of the at least one energy source, means for selectively energizing the non-thermal energy source of the at least one energy source to apply non-thermal energy to at least a portion of the desired region to ablate at least a portion of the desired region, and means for selectively energizing the thermal energy source of the at least one energy source during the withdrawal of the at least one probe to thermally ablate tissue substantially adjacent to a probe track. | 06-17-2010 |
20100168642 | Multilumen Venous Catheter and Method of Use - A multilumen venous access catheter and method of use and repair is provided. The catheter has a means for identifying at least one physical characteristic of an arterial tube and a means for identifying at least one physical characteristic of a venous tube. The at least one physical characteristic of the respective arterial and venous tubes are different in order to allow a user to distinguish between the arterial and venous catheter tubes during use, manufacture, and repair. | 07-01-2010 |
20100191165 | Multilumen Catheters and Method of Manufacturing - A multilumen catheter assembly and method of making the catheter assembly is provided that involves providing a plurality of tubes, each tube having a first end, a second end, at least one lumen, and at least one surface, selectively heating at least a portion of the surface of at least a first tube of the plurality of tubes, and contacting the selectively heated portion of the tube with a portion of the surface of a second tube to form a multilumen catheter shaft that is joined together along at least a portion of the length of the catheter shaft. | 07-29-2010 |
20110172644 | MULTI LAYER COEXTRUDED CATHETER SHAFT - A central venous catheter is provided having an outer tubular member and an inner tubular member that are preferably formed as a single integrated tube containing polymer material of different durometer and varying amounts of radiopaque filler material. The polymer durometer of the inner tubular member is higher than the polymer durometer of the outer tubular member. The percentage by weight of the filler material contained in the inner tubular member is higher than that of the outer tubular member. The combination of the higher durometer inner tubular member and the lower durometer outer tubular member along the length of the tube provides the desired tensile strength, hardness, chemical resistance and fatigue resistance and at the same time provides the desired flexibility and radiopacity. | 07-14-2011 |
20110224618 | Catheter retention assembly and method of use - A catheter retention assembly and method of use with a catheter. The assembly has a carrier system and a cuff positioning device with an in-growth cuff and a lumen having an inner wall adapted to be mounted on the outer surface of the catheter, and a carrier system with an inner surface and an outer surface in contact with the inner wall of the cuff positioning device. The carrier system holds the lumen in a first radial state. When the carrier system is removed, the lumen contracts to a second radial state, and the inner wall of the cuff positioning device provides sufficient surface adherence to the outer surface of the catheter, so as to maintain the position of the cuff positioning device relative to the catheter, and to allow for catheter exchange. | 09-15-2011 |
20110238057 | Dual Bracketed Energy Delivery Probe and Method of Use - An energy delivery probe and method of using the energy delivery probe to treat a patient is provided herein. The energy delivery probe has at least one probe body having a longitudinal axis and at least a first trocar and a second trocar. At least a portion of each trocar is disposed with the at least one probe body. The distance between the first trocar and the second trocar is adjustable between a first position and a second position. Each of the deployed electrodes has an energy delivery surface of a sufficient size to create a volumetric ablation zone between the deployed electrodes. The energy delivery probe is connected to an energy source. At least one cable couples the energy delivery probe to the energy source. | 09-29-2011 |
20120059309 | Fluid Delivery and Treatment Device and Method of Use - A medical device system is provided herein which has an elongated, flexible hollow member with an expandable infusion segment attached at the most distal end of the device. The device has a plurality of fluid infusion ports on the expandable infusion segment for delivering an intended fluid to a target site in a body lumen. Additionally, a method is provided herein for infusing an intended fluid to a target site within a body lumen. | 03-08-2012 |
20120136341 | Multilumen Catheters and Method of Manufacturing - A multilumen catheter assembly and method of making the catheter assembly is provided that involves providing a plurality of tubes, each tube having a first end, a second end, at least one lumen, and at least one surface, selectively heating at least a portion of the surface of at least a first tube of the plurality of tubes, and contacting the selectively heated portion of the tube with a portion of the surface of a second tube to form a multilumen catheter shaft that is joined together along at least a portion of the length of the catheter shaft. | 05-31-2012 |
20120316546 | Device and Method for Endovascular Treatment for Causing Closure of a Blood Vessel - An endovascular treatment method for causing closure of a blood vessel is provided. The method includes inserting into a blood vessel an optical fiber having a core through which a laser light travels and a spacer sleeve arranged around a distal portion of the core. A distal end of the core defines an enlarged light emitting face, which advantageously provides substantially lower power density while providing the same amount of total energy during a treatment session. After the insertion, laser light is applied through the light emitting face while the inserted optical fiber and spacer sleeve are longitudinally moved. The spacer sleeve positions the light emitting face away from an inner wall of the blood vessel and application of the laser light causes closure of the blood vessel. | 12-13-2012 |
20130116658 | APPARATUS FOR REMOVING CHEMOTHERAPY COMPOUNDS FROM BLOOD - A filter apparatus for removing small molecule chemotherapy agents from blood is provided. The filter apparatus comprises a housing with an extraction media comprised of polymer coated carbon cores. Also provided are methods of treating a subject with cancer of an organ or region comprising administering a chemotherapeutic agent to the organ or region, collecting blood laded with chemotherapeutic agent from the isolated organ, filtering the blood laden with chemotherapeutic agent to reduce the chemotherapeutic agent in the blood and returning the blood to the subject. | 05-09-2013 |
20130168303 | Filter and Frame Apparatus and Method of Use - Provided is a filter apparatus, comprising two or more filter cartridges having a first end with an inlet and screen and a second end with an outlet and screen, and walls to contain a filter media held in a housing for holding the two or more filter cartridges in about the same orientation, and an attachment clamp connected to the housing. Also provided is a housing for holding two or more filter cartridges in about the same orientation and a method of using the filter apparatus and housing. | 07-04-2013 |
20130168332 | ADJUSTABLE FILTER APPARATUS - A filter apparatus for removing contaminants from a fluid and having an internal chamber with an adjustable volume is provided. Filter media priming to dislodge trapped gas is facilitated by the filter apparatus. A method of priming a filter cartridge containing a filter media is also provided. | 07-04-2013 |
20130261614 | Method of Treating a Blood Vessel with an Optical Fiber Having a Spacer - An endovascular laser treatment device designed to be used with an optical fiber to treat venous diseases such as varicose veins is provided. The device includes a spacer that positions the distal end of the optical fiber away from the inner wall of the blood vessel during delivery of laser energy to provide an even distribution of thermal energy around the vessel, thereby avoiding vessel perforation and incomplete vessel collapse. | 10-03-2013 |
20140128848 | Catheter with Leading Guidewire Lumen - A vascular access catheter is disclosed that has a leading guidewire lumen. The guidewire lumen is configured for receiving a guidewire and may extend a partial length of the catheter or substantially the entire length of the catheter. A lumen of the catheter can have an opening located in an angled edge distal end portion of the catheter next to the distal tip. A second lumen can have an opening that is positioned in the outer surface of the catheter shaft, and is spaced proximally from the first lumen opening. | 05-08-2014 |
20140296844 | DUAL BRACKETED ENERGY DELIVERY PROBE AND METHOD OF USE - An energy delivery probe and method of using the energy delivery probe to treat a patient is provided herein. The energy delivery probe has at least one probe body having a longitudinal axis and at least a first trocar and a second trocar. At least a portion of each trocar is disposed with the at least one probe body. The distance between the first trocar and the second trocar is adjustable between a first position and a second position. Each of the deployed electrodes has an energy delivery surface of a sufficient size to create a volumetric ablation zone between the deployed electrodes. The energy delivery probe is connected to an energy source. At least one cable couples the energy delivery probe to the energy source. | 10-02-2014 |
20140358134 | Method of Treating a Blood Vessel with an Optical Fiber Having a Spacer - An endovascular laser treatment device designed to be used with an optical fiber to treat venous diseases such as varicose veins is provided. The device includes a spacer that positions the distal end of the optical fiber away from the inner wall of the blood vessel during delivery of laser energy to provide an even distribution of thermal energy around the vessel, thereby avoiding vessel perforation and incomplete vessel collapse. | 12-04-2014 |
20150025512 | DEVICE AND METHOD FOR ENDOVASCULAR TREATMENT FOR CAUSING CLOSURE OF A BLOOD VESSEL - An endovascular laser treatment device for causing closure of a blood vessel uses an optical fiber adapted to be inserted into a blood vessel. An inner sleeve is arranged around a distal portion of the optical fiber core such that both distal ends of the inner sleeve and the optical fiber core form an enlarged light emitting face. The enlarged emitting face provides substantially lower power density while providing the same amount of total energy during a treatment session. An outer sleeve arranged around the inner sleeve acts as a spacer to position the light emitting face away from an inner wall of the blood vessel. The enlarged light emitting face and the outer sleeve acting as a spacer reduces the possibility of thermal run-away and device damage, and reduce the possibility of vessel perforations, leading to less bruising, post-operative pain and other clinical complications. In yet another aspect of the present invention, a spacer comprises an inner sleeve and an outer sleeve both arranged around a distal portion of the core to prevent the laser light from traveling laterally and to position the light emitting face away from an inner wall of the vessel. The inner sleeve can be a heat resistive material such as ceramic and the outer sleeve can be, for example, a metallic sleeve to provide structural integrity and strength to the distal section of the treatment device. | 01-22-2015 |