A device for performing minimially invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artifical chordae tendinae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip potions.

Minimally invasive repair of a valve leaflet in a beating heart

An instrument for performing thorascopic repair of heart valves includes a shaft for extending through the chest cavity and into a heart chamber providing access to a valve needing repair. A movable tip on the shaft is operable to capture a valve leaflet and a needle is operable to penetrate a capture valve leaflet and draw the suture therethrough. The suture is thus fastened to the valve leaflet and the instrument is withdrawn from the heart chamber transporting the suture outside the heart chamber. The suture is anchored to the heart wall with proper tension as determined by observing valve operation with an ultrasonic imaging system.

Thorascopic heart valve repair method and apparatus

Improved methods and apparatuses for heart valve repair in a beating heart of a patient utilize an exchangeable heart valve repair system. Heart valve repair system can include a port adapted to be seated in the heart wall and an imaging catheter slidable within the port. The imaging catheter can be selectively locked relative to the port for insertion into the heart and unlocked once the port is seated to allow the imaging catheter to move distally towards target tissue. A deployment catheter slidably disposed in the imaging catheter and a repair cartridge slidably disposed in the deployment catheter can be used to capture the target tissue and deploy a repair device into the tissue after proper capture is confirmed. System elements can be selectively removed from and replaced within port to deploy additional repair devices while port maintains a seal while elements are and are not inserted.

Exchangeable system for minimally invasive beating heart repair of heart valve leaflets

A method of repairing a heart valve provides intravascular access for repair of a heart valve through a ventricular trans-septal approach. An external guide catheter can be inserted through a vein of a patient into the right ventricle via the right atrium. An internal guide catheter can be inserted through the external guide and can provide access to the septum for a puncture tool to create an opening through the septum to the left ventricle. The internal guide can then be advanced into the left ventricle and used to guide a deployment catheter that deploys a repair device onto the heart valve.

Minimally invasive repair of heart valve leaflets

An instrument for performing thorascopic repair of heart valves includes a shaft for extending through the chest cavity and into a heart chamber providing access to a valve needing repair A movable tip on the shaft is operable to capture a valve leaflet and a needle is operable to penetrate a capture valve leaflet and draw the suture therethrough The suture is thus fastened to the valve leaflet and the instrument is withdrawn from the heart chamber transporting the suture outside the heart chamber The suture is anchored to the heart wall with proper tension as determined by observing valve operation with an ultrasonic imaging system

Thorascopic heart valve repair apparatus

A method and a device for measuring concentrations especially in a pulp suspension, from which a sample has been taken. The sample is collected in a measuring vessel, in which a piston is guided upwards and downwards in order to press the sample from each direction through a measuring sensor collected at the side of the measuring vessel via communicating tubes connected in an upper and a lower position to the measurement vessel, whereby the sample is stirred totally to eliminate flocculation in the same. Measurement of the concentration of the sample is made either during the upwards and downwards movement of the piston in the measuring vessel and first occurs when the speed of the sample through the measuring sensor is constant and the sample has been homogenized after at least some movement upwards and downwards of the piston.

A method and a device for measuring concentrations

PROBLEM TO BE SOLVED: To provide a method and a device for measuring concentration of a pulp suspension. SOLUTION: The sample 3 is selected in a measuring vessel 2, in which a piston 6 is guided upwards and downwards in order to press the sample 3 from each direction through a measuring sensor 5 connected at the side of the measuring vessel via communicating tubes 4, 4' connected in an upper and an lower position to the measurement vessel 2, whereby the sample 3 is stirred totally for eliminating of a flocculation in the same, whereupon a measurement of the concentration of the sample 3 is made either during the movement upwards or downwards of the piston 6 in the measuring vessel 2 and first when the speed of the sample 3 through the measuring sensor 5 is constant and the sample has been homogenized at least after some movement upwards and downwards of the piston. COPYRIGHT: (C)2004,JPO

Method and device for measuring concentration

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A method and a device for measuring concentrations

Method and device for measuring concentration