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7569046 |
Guide-in-guide catheter system
A multiple catheter system is described. In one embodiment a medical catheter system includes a first catheter having an entrance orifice, an exit orifice, a channel connecting the entrance orifice...
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7556625 |
Coronary sinus lead delivery catheter
A guide catheter for accessing the coronary sinus ostium has a proximal portion and a distal portion formed into a preformed shape including a curved segment. The preformed shape includes a first...
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7494478 |
Catheter assembly
A catheter assembly comprises an outer catheter comprising a distal end curved portion having a first curved shape, and an inner catheter which comprises a distal end curved portion having a second...
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7494477 |
Catheter pump, catheter and fittings therefore and methods of using a catheter pump
A catheter pump includes a catheter channel communicating with a distal end portion of the catheter for alternatingly leading fluid in proximal and distal directions. At least one outlet passage is...
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7462184 |
Introducer for accessing the coronary sinus of a heart
The invention is defined as a precurved coronary sinus guiding introducer for use in a cardiomyopathic heart comprising a flexible elongated member with a proximal and distal end. The elongated...
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7128956 |
Catheter having improved curve retention
The present invention provides a polymeric treatment for curved regions in shaft assemblies that increases curve retention without affecting the flexibility within these regions. More specifically,...
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6758834 |
Aortic cannula with spoon-shaped lip
An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge...
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6723083 |
Catheter for percutaneous transradial approach
A preshaped tubular catheter for percutaneous transradial approach to catheterization, comprises a distal bridge shaped portion having a distal arch defining a primary curve, a top defining a...
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6695793 |
Guide catheter for placing cardiac lead
An improved guide catheter provides a distal tip with one or more members that assist a surgeon with locating and inserting the guide catheter through the ostium in the wall of the right atrium...
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6656166 |
Guiding introducer for introducing medical devices into the coronary sinus and process for using same
A coronary sinus guiding introducer utilized to introduce medical devices, such as electrode leads, into the coronary sinus of a human heart. This guiding introducer contains a precurved distal...
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6645195 |
Intraventricularly guided agent delivery system and method of use
The invention relates to an apparatus and method for locating and positioning a medical device in a patient. The catheter based drug delivery device uses ultrasound imaging technology to facilitate...
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6605061 |
Catheter for drug injection in cardiovascular system
A catheter for injecting medicants into the endocardium, myocardium or other portions of the cardiovascular system is presented where the catheter has apertures therein for ejection and retraction...
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6596818 |
Irradiation conversion of thermoplastic to thermoset polymers
Disclosed is a radiation-crosslinkable thermoplastic polymer composition, a process for the preparation thereof, an angioplasty balloon made using such a composition, and a method of using the...
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6554794 |
Non-deforming deflectable multi-lumen catheter
A non-deforming deflectable multi-lumen catheter with an outer jacket having a deflectable distal end portion, an eccentric pull wire lumen, coil and shim embedded therein. The deflectable distal...
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6461336 |
Cardiological medical equipment
An angioplastic device used for treating the areas surrounding bifurcated vessels. The device has an elongated and relatively flexible tubular guiding catheter assembly that slidably houses a guide...
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6442415 |
Contrast-enhanced coronary artery and coronary artery bypass graft imaging using an aortic root catheter injection with either magnetic resonance angiography or computed tomographic angiography
A three-dimensional method of imaging the coronary arteries and coronary artery bypass grafts using a catheter contrast enhanced technique. The method involves the percutaneous placement of a...
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6355026 |
Coronary catheters for use in a transradial catheterization
Right and left coronary catheters that are designed to be used in a transradial coronary catheterization are provided. The catheters have a proximal end, an extended body portion, and a shaped...
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6325790 |
Soft tip catheter
In a torsion control catheter including a tubular body and a flexible tip connected to the tubular body, the improvement comprising a copolymer catheter tip composition comprising a first monomer...
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6315752 |
Implantable bypass device
An implantable bypass device establishes a bypass between an artery and a vein. The device includes an implantable venous connection graft in fluid communication along a vein. The connection graft...
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6264645 |
Method of pressurizing the right ventricle of the heart
A method of pressurizing the right ventricle of the heart. The method includes providing a multi-lumen cannula. The multi-lumen cannula includes a first sub-cannula and a second sub-cannula. The...
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6264633 |
Balloon catheter
A balloon catheter for medical applications has a balloon 11 in a tip region facing the patient having a structured outer surface 12. The structured outer surface 12 is formed by wave troughs and...
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6217554 |
Methods and apparatus for delivering substances into extravascular tissue
Apparatus and methods for delivering a therapeutic or diagnostic agent into extravascular tissue surrounding a body passageway is provided comprising a catheter having a sheath, a tubular member,...
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6217546 |
Catheter system
The present application provides an arterial cannula system for transporting blood from an extracorporeal pump to a patient's femoral artery and aorta comprising first and second cannula portions....
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6210365 |
Perfusion catheter system having sutureless arteriotomy seal and methods of use
Apparatus and methods are provided for delivering oxygenated blood to a patient undergoing cardiac surgery using a perfusion catheter having a distal end carrying first and second sealing members....
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6199262 |
Method of making a guiding catheter
A method of making a catheter, including an elongated tube structure having a proximal end and at least one preset curved portion proximate a distal end. The preset curved portion includes a first...
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6200306 |
Bend clip for flexible rotator
A pusher-rotator for installing a heart valve prosthesis including a handle and a flexible shaft extending from the handle. A valve holder is attached to a terminal end of the shaft. A bendable...
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6190354 |
Balloon catheter with improved pressure source
A balloon catheter which has an elongate shaft with an inflatable balloon connected to its distal end and a manifold connected to its proximal end. The manifold may be fixedly or removably attached...
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6179827 |
Catheter having integral expandable/collapsible lumen
A catheter and method of use as an aortic balloon catheter having an integral expandable/collapsible lumen. The catheter comprises a main catheter body having a plurality of lumens extending...
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6165162 |
Method of using aortic balloon catheter
What is disclosed is a portable and modular cardiopulmonary bypass apparatus and method. The apparatus includes (i) a first cannula assembly for withdrawing blood from a patient, (ii) a pump...
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6132417 |
Right coronary artery catheter
A right coronary artery catheter including a hub, a linear flexible tubular body stock extending from the hub and a curved flexible tubular stem extending from the body stock. The stem includes a...
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6127410 |
Compositions, apparatus and methods for facilitating surgical procedures
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
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6106489 |
Cable particularly for tracheostomy and retrograde-intubation techniques
A cable particularly for tracheostomy and retrograde-intubation techniques, including in combination an elastic guiding wire (2) constituted by a steel wire (3) arranged inside a flexible spring...
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6106510 |
Extruded guide catheter shaft with bump extrusion soft distal segment
A medical catheter including a continuous liner defining a guidewire lumen. The liner has a constant inner diameter and a constant outer diameter. A continuous layer is braided over the liner and...
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6086557 |
Bifurcated venous cannula
A cannula for draining blood from a patient's heart during cardiac surgery including a main body and a pair of branches extending distally therefrom. The branches are biased to extend away from one...
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6083216 |
Bent cardiac lead with shape memory torque coil
In one aspect of the present invention, a cardiac lead is provided that includes a connector for coupling to a cardiac stimulator that has a first rotatable member, and a tubular insulating sleeve...
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6071271 |
Cardiopulmonary catheter system
A catheter system for use in minimally invasive cardiac surgical procedures. The catheter system diminishes certain trauma generally associated with invasive cardiac procedures while providing...
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6066126 |
Precurved, dual curve cardiac introducer sheath
A precurved cardiac introducer sheath (4) includes an elongate, hollow body having main and tip portions (24, 22). The tip portion includes first through fifth segments (26, 28, 30, 32, 34). The...
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6059760 |
Cannula having reverse flow tip
A cannula for conducting fluid to a body includes a cannula body having proximal and distal ends and a lumen extending therebetween. The lumen is adapted to receive the fluid flowing therethrough....
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6056837 |
Spiral sheath retainer for autoperfusion dilatation catheter balloon
A spiral balloon perfusion catheter assembly having a retaining wire and method of making the balloon. Also, a retaining wire for such a catheter and method of forming the retaining wire. A typical...
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6042576 |
Two-stage angled venous cannula
A two-staged venous cannula is disclosed having an angled bend near the distal end. In a preferred embodiment, the angle is a right angle. The angle bend allows the cannulation to take place near...
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6001085 |
Coronary sinus catheter
A catheter for insertion in the ostium of the coronary sinus in the right atrium comprised of a main reinforced portion, an intermediate zone portion and a soft tip portion wherein a portion of the...
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5997526 |
Shape memory catheter
A conformable catheter comprising a catheter handle, an elongated catheter tube, and a distal tip portion of the catheter tube, capable of assuming a desired pre-programmed shape. A wire member is...
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5980502 |
Catheter for the right coronary artery
A catheter for the right coronary artery where the catheter includes a substantially straight proximal shaft section and a distal shaft section. The distal shaft section includes a support arm...
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5957911 |
Left coronary guiding catheter
A left coronary guide catheter having primary, secondary and tertiary curves formed therein to facilitate insertion and positioning of the distal tip of the catheter within the left coronary...
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5947938 |
Process for the nonsurgical mapping and/or treatment of ectopic atrial tachycardia using a guiding introducer
A process for the treatment of ectopic atrial tachycardia by use of ablation and/or mapping procedures comprising ablating discrete locations within the right atrium of the heart by use of an...
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5941872 |
Method of using an increasing radius curve catheter
A guide catheter for insertion into the cardiovascular system having a straight portion and an improved distal end portion for more precise and easier positioning in a left coronary artery. The...
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5935119 |
Perfusion structure
The present disclosure is directed to a perfusion stent and method for implanting the same in a TMR channel for perfusing blood to ischemic areas of the head. The stent includes a head and a stem...
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5935120 |
Catheter and method for evaluating competency of mitral valve
A catheter for evaluating the competency of a mitral valve has a main lumen and at least one additional lumen for venting the area immediately adjacent the catheter. The vent lumen has multiple...
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5931811 |
Steerable catheter with fixed curve
A steerable catheter is disclosed which includes a complexly curved proximal section shaped to seat the catheter relative to an anatomical feature within a patient. The catheter also includes a...
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5902287 |
Guiding catheter and method of making same
A catheter and method of making the same, including an elongated tube structure having a proximal end and at least one preset curved portion proximate a distal end. The preset curved portion...
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