Class / Patent application number | Description | Number of patent applications / Date published |
604990040 | Having valve means (e.g., ball valve, etc.) in fluid or material delivery lumen | 32 |
20080228137 | METHODS AND DEVICES FOR PASSIVE RESIDUAL LUNG VOLUME REDUCTION AND FUNCTIONAL LUNG VOLUME EXPANSION - The volume of a hyperinflated lung compartment is reduced by sealing a distal end of the catheter in an airway feeding the lung compartment. Air passes out of the lung compartment through a passage in the catheter while the patient exhales. A one-way flow element associated with the catheter prevents air from re-entering the lung compartment as the patient inhales. Over time, the pressure of regions surrounding the lung compartment cause it to collapse as the volume of air diminishes. Residual volume reduction effectively results in functional lung volume expansion. Optionally, the lung compartment may be sealed in order to permanently prevent air from re-entering the lung compartment. | 09-18-2008 |
20080300538 | Releasably Locking Dilator and Sheath Assembly - A releasably locking dilator and sheath assembly ( | 12-04-2008 |
20090030369 | BALLOON CATHETER - The balloon catheter according to the present invention is one is provided with a catheter shaft having flexibility with a lumen formed inside; a balloon that is disposed at the distal end side of the catheter shaft and in communication with the lumen; a fluid regulating portion that passes a fluid that is supplied from a fluid supply source to the balloon and, simultaneous with the supply from the fluid supply source being stopped, prevents backflow of the fluid that is supplied to the balloon to the fluid supply source side; and a fluid releasing portion that releases the fluid that is supplied to the balloon to outside of the balloon. | 01-29-2009 |
20090171279 | Balloon catheter assembly and controller therefor - A balloon catheter assembly included a catheter provided with a distal end and a proximal end and at least one inflation lumen in the catheter. The inflation lumen includes a distal end and a proximal end. An inflatable balloon is provided at the distal end of the catheter and in fluid communication with the distal end of said inflation lumen. The proximal end of the inflation lumen is able to be coupled to a source of fluid. A flow controller is coupled between the inflation lumen and the fluid source, the flow controller being adjustable by an operator of the balloon catheter assembly so as to adjust the flow of inflation fluid to the balloon. In one embodiment, the flow controller includes a manually operable control actuator and a plurality of discrete flow configurations provided in the form of flow through holes in the flow controller. In another embodiment the flow controller includes a manually operable control actuator and a gradually varying flow passage therethrough by means of a coupling channel within the flow controller of varying channel dimension. | 07-02-2009 |
20090171280 | Catheter - A tracheo-oesophageal fistula catheter ( | 07-02-2009 |
20090192452 | BLOOD FLOW BLOCKING CATHETER - A blood flow blocking catheter, comprises: a puncture needle component having a puncture needle capable of puncturing a vein; and a sheath that covers said puncture needle component, and a balloon catheter that can be inserted into and removed from a lumen of the puncture needle component and has at its distal end a balloon that can block off blood flow. With the present invention, a balloon catheter can be easily inserted into a vein, and the balloon inflated, without making a large incision in the vein. Therefore, the temporary obstruction of blood flow with a balloon catheter can be carried out more easily, and this simplifies the surgery and makes it less invasive. Thus, it is possible to obtain a blood flow blocking catheter with which vascular anastomosis can be performed more safely and in less time. | 07-30-2009 |
20090264820 | METHOD AND APPARATUS FOR IMPLANTING AN ENDOLUMINAL PROSTHESIS SUCH AS A PROSTHETIC VALVE - Balloon catheters, and medical devices including balloon catheters, are provided that comprise a balloon assembly disposed at the distal end of an elongated tubular member. The balloon, when in the inflated state, includes a body fluid lumen that extends longitudinally through the balloon and is open at the proximal end of the balloon and the distal end of the balloon. In some aspects, the outer surface of the balloon is contiguous from the proximal end to the distal end of the balloon when the balloon is inflated. In other aspects, an endoluminal prosthesis, for example, a stent that can optionally include a prosthetic valve, surrounds the balloon assembly and is adjacent to the outer surface of the balloon. In still other aspects, endoluminal prosthesis implant devices are provided that are suitable for implanting an endoluminal prosthesis in a body vessel containing a flowing fluid such as a vessel in the heart, e.g., the left or right ventricle inflow or outflow tracks. The endoluminal prosthesis implant devices include a balloon assembly and an endoluminal prosthesis surrounding the balloon assembly. The balloon assembly is configured to permit a fluid to pass from the first end of the balloon to the second end of the balloon when the balloon is in an inflated state. In some embodiments of all of these aspects, the balloon is configured to prevent a fluid from passing from the second end of the balloon to the first end of the balloon when the balloon is in an inflated state. In some embodiments, for example, the body fluid lumen includes a body fluid lumen valve moveable between a first position and a second position. The body fluid lumen valve occludes the body fluid lumen to a greater extent in the first position than in the second position. In some embodiments, the body fluid lumen valve substantially prevents a fluid from flowing through the body fluid lumen in a first direction. Certain aspects and/or embodiments of the balloon catheters, and medical devices including balloon catheters, may allow for the deployment of an endoluminal prosthetic valve (e.g., a heart valve), while the native valve can continue to function uninterrupted under its native load and flow. | 10-22-2009 |
20090287147 | APPARATUS AND METHOD FOR PROVIDING PERCUTANEOUS ACCESS AND MEDICAMENT TO A TARGET SURGICAL SITE - A method of forming and enlarging a percutaneous penetration is provided. The method includes the step of providing a radially expandable dilation assembly having a needle assembly removably inserted in a axial lumen thereof. The radially expandable dilation assembly includes a radially expandable sleeve body defining a lumen and an introducer seal disposed across the lumen and defining an opening formed therein. The method further includes the steps of penetrating the radially expandable dilation assembly and needle assembly through tissue to a target surgical site, withdrawing the needle assembly from the radially expandable dilation assembly, and inserting an expansion assembly through the opening formed in the introducer seal and into the axial lumen of the radially expandable dilation assembly. | 11-19-2009 |
20100004595 | BALLOON CATHETER SYSTEMS FOR TREATING UTERINE DISORDERS HAVING FLUID LINE DE-GASSING ASSEMBLIES AND METHODS THEREFOR - A system for treating uterine disorders includes a catheter with a cannula having a proximal end and a distal end, and a degassing system in communication with the distal end of the cannula. The degassing system has a fluid insertion path having a first check valve and a gas filter, and a fluid extraction path that is separate from the fluid insertion path and includes a second check valve. The catheter may include an inflatable balloon secured to the distal end of the cannula with the degassing system in communication with the inflatable balloon. In one embodiment, a heating assembly is disposed inside the inflatable balloon for heating the fluid introduced into the balloon. | 01-07-2010 |
20100069837 | Balloon Assembly and Method for Therapeutic Agent Delivery - A balloon assembly includes an elongated balloon, one or more cutting elements engaged to the balloon, and one or more therapeutic agents disposed within an opening defined by the cutting blades. The balloon assembly converts energy into heat to enhance elution of the therapeutic agent at the treatment site | 03-18-2010 |
20100211008 | Medical Vascular Lock With Blocking Function - A vascular lock comprising a guide tube ( | 08-19-2010 |
20100217189 | BALLOON CATHETER PRESSURE RELIEF VALVE - A pressure relief apparatus for a balloon dilation catheter having a shaft with a dilation balloon attached to the distal end of the shaft and an inflation/deflation lumen for inflating and deflating the balloon includes a pressure relief port formed through the wall of the inflation/deflation lumen with a pressure relief member secured across the pressure relief port to form a fluid tight seal such that the fluid tight seal formed by the pressure relief member fails at a predetermined pressure to release pressure from the inflation/deflation lumen through the pressure relief port. | 08-26-2010 |
20100222738 | DEVICES AND SYSTEMS FOR SELECTIVE AUTO-RETROPERFUSION OF THE CEREBRAL VENOUS SYSTEM - Devices and systems for providing retroperfusion and autoretroperfusion therapies to a brain. In certain embodiments, the devices and systems disclosed herein comprise a flow unit configured to adjust the flow rate and pressure of the arterial blood used for perfusion of the venous system. Methods for delivering a bridge retroperfusion therapy are also disclosed such that, after the onset of a stroke or other adverse cerebral event, the brain cells' window of viability may be extended and other treatments, including pharmaceutical and neuroprotective therapies, may be more effectively utilized. | 09-02-2010 |
20100280451 | Occlusion Perfusion Catheter - Catheters for occluding, visualizing, irrigating, evacuating, and delivering agents to a treatment area are disclosed. The catheters comprise a catheter body comprising five lumens, first and second occlusion balloons coupled to the catheter body, an optional space-occupying balloon coupled to the catheter body and disposed between the first and second occlusion balloons, and an optional visualization means that enables visualization between the first and second occlusion balloons. Methods for using these catheters are also disclosed. A method comprises inflating the first and second occlusion balloons, inflating the space-occupying balloon, allowing fluid to exit via an evacuation lumen, optionally irrigating or aspirating to facilitate fluid exit via said lumen, and delivering an agent to a treatment area via the agent lumen. | 11-04-2010 |
20110160658 | DRUG RELEASING COATINGS FOR MEDICAL DEVICES - The invention relates to a medical device for delivering a therapeutic agent to a tissue. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent and an additive. The additive has a hydrophilic part and a hydrophobic part and the therapeutic agent is not enclosed in micelles or encapsulated in particles or controlled release carriers. | 06-30-2011 |
20110172598 | BALLOON CATHETER AND METHODS FOR USE - Apparatus and methods are provided for treating a lesion within a body lumen using a catheter including a balloon on its distal end and an abrasive distal tip extending distally beyond the balloon. The distal tip may terminate in a sharpened tip for penetrating occlusive material, e.g., a beveled tip, and includes abrasive material on an outer surface thereof, e.g., abrasive grit, cutting elements, and the like, for abrading occlusive material adjacent the distal tip. The abrasive material may be arranged in a predetermined pattern, e.g., an axial, circumferential, or helical pattern, to facilitate abrading occlusive material. The distal tip may have a substantially uniform diameter or tapered shape along its length. | 07-14-2011 |
20110270176 | CATHETER HAVING INFLATION AND DEFLATION LUMEN USEFUL FOR PREVENTING OR REDUCING REPERFUSION INJURY - A system including a catheter and an expandable member. The catheter includes an independent inflation lumen and an separate independent deflation lumen capable of sequential inflation and deflation of an expandable member in rapid succession, such as less than five seconds. | 11-03-2011 |
20110288478 | BALLOON CATHETER EXHIBITING RAPID INFLATION AND DEFLATION - A catheter capable of rapid inflation and deflation and operation by one individual. | 11-24-2011 |
20110313354 | LOW-PROFILE ONE-WAY VALVE - A valve configured for a lumen of medical device is provided. The valve includes a valve body that may be elastically deformed from a first configuration to a second configuration. The valve body includes a lumen having a closed configuration and an open configuration. The lumen may be actuated from the closed configuration to the open configuration by elastically deforming the valve body from the first configuration to the second configuration. The valve body may include a portion configured to form a seal with an interior surface of a lumen of a medical device. | 12-22-2011 |
20120116304 | DRUG DELIVERY MEDICAL DEVICES - Medical devices for delivering a bioactive agent and methods of use thereof are provided. The device includes a balloon having micro-needles for delivery of the bioactive agent. | 05-10-2012 |
20120197191 | ENTERAL FEEDING TUBE AND HOUSING - An enteral feeding tube provides a conduit for the flow of liquid nutritional material. Most of the enteral feeding tube that is external to the patient is generally horizontal when the device is positioned in a stoma of a user lying in a prostrate position. A housing surrounds the horizontal portion enteral feeding tube, provides a low profile, aids in holding the enteral feeding tube in place, and protects the enteral feeding tube. The bottom surface of the housing comprises a resilient material that contacts the skin of the patient. The enteral feeding tube comprises a balloon that is positioned in the stomach to retain the device in the stomach. An air conduit extends generally vertically from an upper portion of the housing and through the enteral feeding tube to communicate with the balloon. | 08-02-2012 |
20120197192 | Inflatable Retention System for Enteral Feeding Device - An inflatable retention system for an enteral feeding tube having a base deployed outside the human body and an indwelling retainer which is deployed within a lumen or cavity of the body by insertion through a stoma from outside the body. The retention system includes a tube having a proximal end, a distal end, an external tube diameter, and tube walls defining a feeding lumen and an inflation lumen. The retention system also includes an inflatable balloon located at a distal end of the tube in fluid communication with the inflation lumen, the balloon having thin, flexible walls, a predetermined spheroid shape, and a volume at which a fluid in the balloon is under no pressure such that upon inflation with a fluid to pressurize fluid in the balloon, the balloon assumes a stable spheroid shape and exhibits a substantially linear pressure versus volume curve. | 08-02-2012 |
20120197193 | APPARATUS AND METHODS FOR TREATING OBSTRUCTIONS WITHIN BODY LUMENS - Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element. | 08-02-2012 |
20120245519 | Enteral Feeding Catheter Device with an Indicator - A balloon catheter device includes a catheter having a proximal end, a distal end, and catheter walls defining a catheter lumen. An inflatable balloon is located at a distal end of the catheter and is inflated through an inflation valve located on a base. An internal cavity is defined in the base and is in fluid communication with the inflatable balloon. A translucent window is disposed over the internal cavity such that an interior volume of the cavity is externally viewable. Introduction of a colored fluid through the inflation valve to inflate the balloon results in the colored fluid also being present in the internal cavity, thereby providing an externally visual indication of the inflation state of the balloon. | 09-27-2012 |
20130018308 | BIOFEEDBACK TRAINING OF ANAL AND RECTAL MUSCLES - A probe including a housing, a rectal muscle air bag, a rectal tube, an anal muscle air bag, and an anal tube is provided. The rectal muscle air bag mounts to the housing a first distance from a non-insertion end. A rectal tube is connected to the rectal muscle air bag at a first end and to a first pressure sensor at a second end. The anal muscle air bag is mounted to the housing a second distance from the non- insertion end. The anal tube is connected to the anal muscle air bag at a first end and to a second pressure sensor at a second end. The first distance is selected to position the rectal muscle air bag adjacent a rectal muscle, and the second distance is selected to position the anal muscle air bag adjacent an anal muscle when the housing is inserted in the rectum. | 01-17-2013 |
20130226083 | Balloon Catheter Systems for Delivery of Dry Drug Delivery Vesicles to a Vessel in the Body - Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon. | 08-29-2013 |
20140012194 | THREE WAY VALVE FOR MEDICAL DEVICE - A device for performing a medical procedure is provided. The device includes an elongate catheter disposed between a distal end portion and a proximal end portion, with a central portion therebetween. A central portion of the catheter includes parallel first and second lumens therethrough, wherein the first lumen extends through in the distal end portion and the second lumen extends through the distal end portion. A fluid input connection is provided along with a selection valve stem disposed within a valve housing. | 01-09-2014 |
20140039389 | Balloon Catheter Systems for Delivery of Dry Drug Delivery Vesicles to a Vessel in the Body - Devices and methods for balloon delivery of rapamycin and other hydrophobic compounds to the wall of blood vessels. Balloon catheters, such as those used for balloon angioplasty, are modified with the addition of a reservoir of dry micelles, disposed at a suitable location within the balloon or catheter. The reservoir may be installed within the angioplasty balloon, within a lumen in communication with the angioplasty balloon, either as a loose or packed powder or as a film coating. The micelle preparation is reconstituted and the micelles are mobilized when the aqueous solution used to inflate the balloons is injected into the catheter. The micelles are infused into tissue surrounding the balloon when pressurized fluid within the balloon leaks through the wall of the balloon. | 02-06-2014 |
20140066848 | APPARATUSES AND METHODS FOR MEDICATION ADMINISTRATION - A rectal medication administration device includes a tube, a balloon, a first valved port, and a second valved port. The tube includes a first lumen, a second lumen, and a plurality of holes extending from the first lumen therethrough. The balloon is proximal to the holes, is in communication with the second lumen, and is configured to be inflated to hold the tube in place within a patient's rectum. The first valved port is in communication with the first lumen and opens when connected to a first syringe or infusion set to provide medication transmission therethrough and closes when the first syringe or infusion set is withdrawn. The second valved port is in communication with the second lumen and opens when connected with a second syringe or infusion set to provide fluid to inflate the balloon and closes when the second syringe or infusion set is withdrawn. | 03-06-2014 |
20140155824 | Drug Delivery Medical Devices - Medical devices for delivering a bioactive agent and methods of use thereof are provided. The device includes a balloon having micro-needles for delivery of the bioactive agent. | 06-05-2014 |
20160158046 | FLOW REGULATION VALVE FOR CONTROLLING INFLATION RATE OF A BALLOON DEPLOYING A SCAFFOLD - An apparatus and method for controlling inflation pressure, pressurization rate, and volumetric flow rate of a balloon during deployment of a stent or scaffold is disclosed. | 06-09-2016 |
20160158439 | DEVICE AND METHODS FOR TRANSVASCULAR TUMOR EMBOLIZATION WITH INTEGRATED FLOW REGULATION - A catheter assembly may be provided with a catheter body and an inflatable balloon. The catheter body has a proximal end, a distal end and a balloon inflation lumen. The inflatable balloon is attachable to the distal end of the catheter body. The balloon has an inner surface that at least partially defines an interior volume. The balloon is configured such that the interior volume can be in fluid communication with the inflation lumen of the catheter body to inflate the balloon. The balloon also has a proximal surface and a distal surface. The balloon is provided with a channel that extends through the balloon. The channel is configured to provide fluid communication between the proximal surface of the balloon and the distal surface of the balloon. Other catheter assemblies and methods of use are also disclosed. | 06-09-2016 |