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118 results about "Heart operations" patented technology
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Apparatus and method for replacing aortic valve
Apparatus and methods are disclosed for performing beating heart surgery. Apparatus is disclosed comprising a cannula having a proximal end and a distal end; an aortic filter in connection with the cannula, the aortic filter having a proximal side and a distal side; a check valve in connection with the cannula, the check valve disposed on the distal side of the aortic filter; and a coronary artery filter in connection with the cannula, the coronary artery filter having a proximal end and a distal end, and the distal end of the coronary artery filter extending distally away from the distal end of the cannula. A method is disclosed comprising providing apparatus for performing beating heart surgery; deploying the apparatus in an aorta; performing a procedure on the aortic valve; and removing the apparatus from the aorta.
Owner:MEDTRONIC INC
Device to permit offpump beating heart coronary bypass surgery
Owner:MAQUET CARDIOVASCULAR LLC
Methods and apparatus for locating body vessels and occlusions in body vessels
ActiveUS7493154B2Advantageously employedPrevent shrinkage and stenosisElectrotherapyInfusion syringesCoronary arteriesMinimally invasive cardiac surgery
Methods and apparatus employed to locate body vessels and occlusions in body vessels finding particular utility in cardiac surgery, particularly minimally invasive cardiac surgery to locate cardiac arteries and occlusions in cardiac arteries are disclosed. An elongated vessel lumen probe incorporating a lumen probe element at or near the elongated vessel lumen probe distal end is advanced into the vessel lumen. A vessel surface probe manipulated by the surgeon and having a surface probe element sensor is employed to detect the lumen probe element and to follow the progress of the vessel lumen probe element as it approaches and is advanced through or is blocked by an occlusion. In the location of a coronary artery, the surface probe element sensor is moved about against the epicardium over the suspected location of the artery of interest until a surface probe element sensor of the present invention at the surface probe distal end interacts with the lumen probe element of the vessel lumen probe.
Owner:MEDTRONIC INC
Devices and Methods for Beating Heart Cardiac Surgeries
InactiveUS20070219630A1Reduce shakingImprove efficiencyVenous valvesCoronary arteriesCoronary artery guide catheter
The present invention provides devices for beating heart surgery. The device separates the valve and the surrounding area from the rest of the vascular system so the operation procedure can be carried out while the heart is beating during the entire course of the procedure. This is made possible through a temporary valve (170) and two coronary artery conducts (130, 140) incorporated in the balloon-catheter system. The system provides better view and ease of operation and thus, reduces surgery related complication and pains.
Owner:CHU XI
Methods and systems for performing thoracoscopic coronary bypass and other procedures
InactiveUS6027476AImprove isolationReduce complicationsSuture equipmentsCannulasThoracoscopeHeart operations
A method for closed-chest cardiac surgical intervention relies on viewing the cardiac region through a thoracoscope or other viewing scope and endovascularly partitioning the patient's arterial system at a location within the ascending aorta. The cardiopulmonary bypass and cardioplegia can be induced, and a variety of surgical procedures performed on the stopped heart using percutaneously introduced tools. The method of the present invention will be particularly suitable for forming coronary artery bypass grafts, where an arterial blood source is created using least invasive surgical techniques, and the arterial source is connected to a target location within a coronary artery while the patient is under cardiopulmonary bypass and cardioplegia.
Owner:EDWARDS LIFESCIENCES LLC
Methods for using a three-dimensional stromal tissue to promote angiogenesis
InactiveUS20030007954A1Reduce inflammationPromotes rapid endothelializationSuture equipmentsBiocideSmooth muscleCardiac muscle
The present invention relates to a method for promoting blood vessel formation in tissues and organs. In particular, the method relates to implantation or attachment of an engineered three-dimensional stromal tissue to promote endothelialization and angiogenesis in the heart and related tissues. The three-dimensional stromal tissue of the present invention may be used in a variety of applications including, but not limited to, promoting repair of and regeneration of damaged cardiac muscle, promoting vascularization and healing during cardiac surgery, promoting blood vessel formation at anastomosis sites, and promoting vascularization and repair of damaged skeletal muscle, smooth muscle or connective tissue.
Owner:ADVANCED TISSUE SCIENCES INC
Single port cardiac support apparatus
Owner:MAQUET CARDIOVASCULAR LLC
Methods of indirectly stimulating the vagus nerve with an electrical field
Controlled cessation of heart beat during coronary bypass surgery and other cardiac surgeries on a beating heart improves surgical technique, and is achieved typically by electrical stimulation of the vagus nerve and administration of a combination of drugs.
Owner:EMORY UNIVERSITY
Methods and Apparatus for Locating Body Vessels and Occlusions in Body Vessels
InactiveUS20090137900A1Prevent shrinkage and stenosisAdvantageously employedSurgeryDiagnostic recording/measuringCoronary arteriesMinimally invasive cardiac surgery
Methods and apparatus employed to locate body vessels and occlusions in body vessels finding particular utility in cardiac surgery, particularly minimally invasive cardiac surgery to locate cardiac arteries and occlusions in cardiac arteries are disclosed. An elongated vessel lumen probe incorporating a lumen probe element at or near the elongated vessel lumen probe distal end is advanced into the vessel lumen. A vessel surface probe manipulated by the surgeon and having a surface probe element sensor is employed to detect the lumen probe element and to follow the progress of the vessel lumen probe element as it approaches and is advanced through or is blocked by an occlusion. In the location of a coronary artery, the surface probe element sensor is moved about against the epicardium over the suspected location of the artery of interest until a surface probe element sensor of the present invention at the surface probe distal end interacts with the lumen probe element of the vessel lumen probe.
Owner:MEDTRONIC INC
Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like
InactiveUS7115122B1Avoiding costly and intrusiveElectrotherapyDiagnosticsFibrillationElectrical impulse
A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template. Guided by the template, energy emitting and non-energy emitting zones are formed on the elements. By overlaying the elements, the composite structure is formed, which can be introduced into the body to ablate tissue using catheter-based, vascular access techniques.
Owner:EP TECH
Aortic occluder with associated filter and methods of use during cardiac surgery
InactiveUS20080065008A1Filter blood effectivelyEffective filteringStentsBalloon catheterFiltrationBlood flow
Owner:BARBUT DENISE +4
Method and systems for performing thoracoscopic cardiac bypass and other procedures
InactiveUS6311693B1Promote healingEqual efficacySuture equipmentsCannulasHeart operationsThoracoscopes
A method for closed-chest cardiac surgical intervention relies on viewing the cardiac region through a thoracoscope or other viewing scope and endovascularly partitioning the patient's arterial system at a location within the ascending aorta. The cardiopulmonary bypass and cardioplegia can be induced, and a variety of surgical procedures performed on the stopped heart using percutaneously introduced tools. The method of the present invention will be particularly suitable for forming coronary artery bypass grafts, where an arterial blood source is created using least invasive surgical techniques, and the arterial source is connected to a target location within a coronary artery while the patient is under cardiopulmonary bypass and cardioplegia.
Owner:EDWARDS LIFESCIENCES LLC
Materialized heart 3D model manufacturing method capable of achieving internal and external structures
ActiveCN104462650AClear and complete structureIncrease success rateSpecial data processing applications3D modellingDICOMMedical imaging data
The invention relates to a materialized heart 3D model manufacturing method capable of achieving internal and external structures. The method can overcome the defects in the prior art. The method includes the steps that (1) the heart part of a patient is scanned to obtain medical image data to form a DICOM file; (2) the DICOM file obtained in the step (1) is identified through Mimics software and stored to form a computer-identified .mcs file; (3) different data templates are extracted from the software; (4) the templates, with cavity structures or incomplete images or unclear boundaries, obtained in the step (3) are processed to be made clear and complete; (5) a needed template is formed by adding or deleting or separating or combining the templates; (6) a 3D image formed in the step (5) is processed to enable the exterior of the 3D image to be smooth and interior image templates to be complete to form an STL file; (7) data processed in the step (6) are input in a 3D laser printer, and accordingly a heart model is printed. According to the method, heart models with clear and complete structures can be obtained, and the success rate of heart operations can be greatly increased.
Owner:河南龙光三维生物工程有限公司
Cannulation system and related methods
InactiveUS20050165269A9Eliminate needOther blood circulation devicesSurgeryHeart operationsCardiac surgery
The present disclosure involves a cannulation system (10) and related methods for augmenting the cardiac output of the heart during cardiac surgery.
Owner:A MED SYST +1
Methods and systems for performing thoracoscopic coronary bypass and other procedures
InactiveUS6325067B1Reduce complicationsAllows can be cooledSuture equipmentsCannulasHeart operationsThoracoscopes
A method for closed-chest cardiac surgical intervention relies on viewing the cardiac region through a thoracoscope or other viewing scope and endovascularly partitioning the patient's arterial system at a location within the ascending aorta. The cardiopulmonary bypass and cardioplegia can be induced, and a variety of surgical procedures performed on the stopped heart using percutaneously introduced tools. The method of the present invention will be particularly suitable for forming coronary artery bypass grafts, where an arterial blood source is created using least invasive surgical techniques, and the arterial source is connected to a target location within a coronary artery while the patient is under cardiopulmonary bypass and cardioplegia
Owner:EDWARDS LIFESCIENCES LLC
Computer-controlled tissue-based simulator for training in cardiac surgical techniques
The present invention is directed to an electromechanical pumping system for simulating the beating of heart in a cardiac surgery training environment. A computer-controllable linear actuator is used to control the electromechanical pumping system.In a preferred embodiment, the electromechanical pumping system is linked to a porcine heart. The heart is made to beat by inserting intra-ventricular balloons placed inside the heart and connected to the pumping system. When controlled by the electromechanical pumping system, the porcine heart is able to display normal and abnormal beating rhythms, as well as ventricular fibrillation.In addition, an electronic pressure sensor incorporated into the pumping system can be used to trigger a ventricular fibrillation mode when the porcine heart attached to the pumping system is handled by a trainee surgeon.
Owner:UNIVERSITY OF THE WEST INDIES
Intravascular cannulation apparatus and methods of use
This invention is a cannulation apparatus, and related methods for providing indirect access to a surgical site within a patient. The cannulation apparatus includes at least two fluid flow paths that are slidable coupled (40) (50) to one another, and selectively positional within the patient. The first, the second flow path s may be advanced through a single incision disposed remotely from the surgical field to first, and second predetermined locations within the patient. Exemplary sites for the incision include the groin region or in the neck region of the patient. The cannulation apparatus, and method of the present invention are particularly suited for use in providing cardiopulmonary support during cardiac surgery, including coronary artery bypass graft surgery. The cannulation apparatus of the present invention also provides an entry site for one or more support devices used in the surgical procedure.
Owner:MAQUET CARDIOVASCULAR LLC +1
Device to permit offpump beating heart coronary bypass surgery
Owner:MAQUET CARDIOVASCULAR LLC
Heart valve prosthesis
ActiveUS20100023121A1Restrict blood backflowPreventing possibility of generationHeart valvesBone implantBlood flowThrombus
A medical device in cardiac surgery for replacement of the diseased native heart valves in humans increases thromboresistance of heart valve prosthesis. A heart valve prosthesis comprising an annular housing with the inner surface defining the blood flow I through the valve prosthesis and leaflets mounted within the annular housing with the possibility to pivot around the reference axis between an open position which allows the passage of the direct blood flow I, and a closed position which restricts the blood backflow II. Each leaflet has an upstream surface facing the direct blood surface I, a downstream surface facing the blood backflow II, a coaptation surface, and a side surface. Console projections radially oriented are provided at the inner surface of the housing, and each leaflet has a slot which corresponds to the projection. The inner surface of the housing is mainly cylindrical, and the downstream surface of each leaflet is in the form of the crossing cylindrical and conical surfaces. The upstream surface of each leaflet is in the form of the cylindrical surface. Higher thromboresistance of the heart valve prosthesis is achieved through elimination of the elements which introduce disturbances into the blood flow and reduction of the number of hinged joints.
Owner:MEDENG
Controlled release of anti-arrhythmic agents
InactiveUS7022343B2Minimal inflammationEfficient deliveryPowder deliveryOrganic active ingredientsControlled releaseIn vivo
Methods for the simple, reliable application and local controlled release of selected anti-arrhythmia drugs from a hydrogel applied to or polymerized on the tissues of the heart or its vessels, especially in conjunction with cardiac bypass or other cardiac surgery, have been developed. The anti-arrhythmia drugs are incorporated into hydrogels that biodegrade and adhere to the tissues to which the anti-arrhythmic drugs are to be delivered. The hydrogels may be formed in vitro or in vivo. In a preferred embodiment, the drugs are effective to lengthen atrial effective refractory period. A particularly preferred drug is amiodarone.
Owner:GENZYME CORP
Methods and devices for cardiac surgery
ActiveUS20050010079A1Enhancement of heart surgery procedureSurgeryProsthesisLeft thoraxHeart operations
Methods for performing minimally invasive heart surgery include accessing a heart of a patient through a first incision on the left thorax of the patient, contacting the heart through the incision with a heart stabilizing device and / or a heart positioning device, introducing at least one coupling device through a second incision on the patient located apart from the first incision, coupling the coupling device with the heart stabilizing device or the heart positioning device, and performing a surgical procedure on the heart. Systems may include a retractor device, a heart stabilizing device, and a coupling device, for enhancing cardiac surgery. Any suitable heart surgery may be performed using methods, devices or systems of the present invention. In one embodiment, a CABG procedure is performed.
Owner:TERUMO CARDIOVASCULAR SYST CORP +1
Method and apparatus for venous drainage and retrograde coronary perfusion
InactiveUS20050113799A1Improve protectionFacilitate surgeryBalloon catheterOther blood circulation devicesIschemic heartExtracorporeal circulation
A system is disclosed for cannulating the vena cava of a patient during cardiopulmonary bypass procedures. Such cannulation is necessary for drainage of venous blood from the patient so that it may be oxygenated and pumped back to the patient to perfuse tissues during cardiac surgery and, more specifically, during periods of ischemic cardiac arrest or dysfunction. The device of the present invention not only provides venous drainage for cardiopulmonary bypass, but also performs the function of routing cardioplegic solution through the heart in the retrograde direction. Such cardioplegia provides protection to the heart during periods of ischemic cardiac arrest. This invention replaces a plurality of cannulae currently used for open-heart surgery, thus simplifying the surgical field and improving visibility of the heart. The device allows for the delivery of retrograde cardioplegia to the coronary circulation of both the right and the left side of the heart. The device further includes protection mechanisms to prevent overinflation or excessive pressurization of the right atrium during retrograde delivery of cardioplegia solution.
Owner:INDIAN WELLS MEDICAL
Balloon occlusion device and methods of use
A cardioplegia occluder and methods of using the device during cardiac surgery are disclosed. The system typically includes a substantially rigid cannula with an occluder mounted on the distal region of the cannula that expands upon activation to occlude the aorta downstream of an infusion port which delivers cardioplegia solution to arrest the heart. Systems including cutting blades, blade guards, flanges, radiopaque markers and occluder aligners are also disclosed. In use, the distal end of the cannula is inserted through an incision into the aorta, the occluder is expanded and cardioplegia solution is infused upstream of the aorta to arrest the heart. The infusion port can alternately be used to aspirate cardioplegia or embolic debris or other unwanted material from the aorta.
Owner:EDWARDS LIFESCIENCES CORP
Aortic occluder with associated filter and methods of use during cardiac surgery
InactiveUS7306575B2Efficient fermentationEliminating and minimizing embolizationStentsBalloon catheterFiltrationArterial cannula
A balloon arterial cannula and methods for filtering blood. The devices generally include a mesh for filtering blood flowing within a blood vessel, particularly within an artery such as the aorta, a structure adapted to open and close the mesh within the blood vessel, a means to actuate the structure, and a balloon occluder which typically includes a flexible material enclosing a chamber. The methods generally include the steps of introducing a mesh into a blood vessel to capture embolic material, adjusting the mesh, if necessary, during the course of filtration, inflating the balloon occluder to occlude the vessel upstream of the mesh, and thereafter deflating the balloon occluder and removing the mesh and the captured foreign matter from the blood vessel. Additionally, visualization techniques are used to ensure effective filtration.
Owner:EDWARDS LIFESCIENCES CORP
Methods for using a three-dimensional stromal tissue to promote angiogenesis
InactiveUS20040219134A1Reduce inflammationPromotes rapid endothelializationSuture equipmentsBiocideSmooth muscleCardiac muscle
The present invention relates to a method for promoting blood vessel formation in tissues and organs. In particular, the method relates to implantation or attachment of an engineered three-dimensional stromal tissue to promote endothelialization and angiogenesis in the heart and related tissues. The three-dimensional stromal tissue of the present invention may be used in a variety of applications including, but not limited to, promoting repair of and regeneration of damaged cardiac muscle, promoting vascularization and healing during cardiac surgery, promoting blood vessel formation at anastomosis sites, and promoting vascularization and repair of damaged skeletal muscle, smooth muscle or connective tissue.
Owner:ADVANCED TISSUE SCIENCES INC
Prevention and reduction of blood loss
Owner:DYAX CORP
Pulmonary and circulatory blood flow support devices and methods for heart surgery procedures
Owner:MAQUET CARDIOVASCULAR LLC
Controlled release of anti-arrhythmic agents
InactiveUS20060093673A1Reduce inflammationImprove compatibilityPowder deliveryPharmaceutical non-active ingredientsIn vivoHeart operations
Methods for the simple, reliable application and local controlled release of selected anti-arrhythmia drugs from a hydrogel applied to or polymerized on the tissues of the heart or its vessels, especially in conjunction with cardiac bypass or other cardiac surgery, have been developed. The anti-arrhythmia drugs are incorporated along with an anti-inflammatory agent into hydrogels that biodegrade and adhere to the tissues to which the anti-arrhythmic drugs are to be delivered. The hydrogels may be formed in vitro or in vivo. In a preferred embodiment, the drugs are effective to lengthen atrial effective refractory period and minimize the inflammatory response. A particularly preferred drug is amiodarone and dexamethasone.
Owner:GENZYME CORP
Heart pump apparatus and method for beating heart surgery
InactiveUS20090112049A1Maintaining cardiac outputAvoid the needIntravenous devicesBlood pumpVeinSuperior vena cava
Apparatus for assisting a surgeon in procedures involving the heart and methods of employing such apparatus are provided. The apparatus can include a pump, and a first fluid conduit having a distal end adapted to be inserted into the superior vena cava of a beating heart, a second fluid conduit having a distal end adapted to be inserted into the inferior vena cava, and a third fluid conduit having a distal end adapted to be inserted into the pulmonary artery of the beating heart, each in liquid fluid communication with the pump, which in combination can be operatively positioned to form a closed cardiac pathway extending from the vena cavae and to the pulmonary artery to thereby convey blood collected from the vena cavae into the pulmonary artery, operatively bypassing the right side of the heart. The pump is positioned to both convey blood flow from each vena cavae and to the third fluid conduit and to provide a blood reservoir which enables the provision of manual assistance to the blood flow to the lungs when blood flow is insufficient.
Owner:SAUDI ARABIAN OIL CO
System and method for filtering leukocytes in cardiac surgery
InactiveUS20050215937A1Avoid flowOther blood circulation devicesMedical devicesWhite blood cellFilter system
According to one embodiment, a leukocyte reducing filter system comprises a delivery line comprising a plurality of branches, at least a plurality of said branches further comprising a leukocyte reducing filter interposed into said branch, and a stopping mechanism for selectively stopping fluid flow through each of said branches.
Owner:MUSC FOUND FOR RES DEV
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