Abstract: An RF catheter for treating hypertrophic cardiomyopathy includes: a body part constituting a catheter body made of a flexible and soft material; and an intraseptal insertion part provided at a distal part of the body part and having one or more electrodes, a tapered tip gradually becoming thinner toward an end thereof, and a guidewire lumen therein, into which a guidewire is inserted, so that during hypertrophic cardiomyopathy treatment, the intraseptal insertion part is inserted into the interventricular septum along the guidewire. A method of treating hypertrophic cardiomyopathy by using an RF ablation catheter includes: i) positioning the guidewire to a hypertrophied septum through a coronary sinus and a septal vein; ii) transferring the RF ablation catheter to the hypertrophied septum; and iii) performing RF ablation by applying RF energy to the electrodes provided at an end part of the RF ablation catheter by using an RF generator.

Abstract: An RF catheter for treating hypertrophic cardiomyopathy includes: a body part constituting a catheter body made of a flexible and soft material; and an intraseptal insertion part provided at a distal part of the body part and having one or more electrodes, a tapered tip gradually becoming thinner toward an end thereof, and a guidewire lumen therein, into which a guidewire is inserted, so that during hypertrophic cardiomyopathy treatment, the intraseptal insertion part is inserted into the interventricular septum along the guidewire. A method of treating hypertrophic cardiomyopathy by using an RF ablation catheter includes: i) positioning the guidewire to a hypertrophied septum through a coronary sinus and a septal vein; ii) transferring the RF ablation catheter to the hypertrophied septum; and iii) performing RF ablation by applying RF energy to the electrodes provided at an end part of the RF ablation catheter by using an RF generator.

Abstract: The present invention is advantageous in that the shape of the catheter can be sensed by detecting the position of bending of the catheter body, the direction thereof, the angle thereof, and the curvature thereof through a triplet calculation of information regarding three wavelengths that have undergone a transition along respective FBGs provided on three optical cores.

Abstract: The present invention is a system for three-dimensionally mapping a heart, comprising: a mapping catheter including three or more optical cores each of which has a plurality of FBGs disposed in the lengthwise direction of a catheter body, and a plurality of electrodes disposed in the lengthwise direction of the catheter body and exposed on the outer circumferential surface of the catheter body, wherein the electrodes make contact with the inner wall of the heart; and a mapping processor for calculating coordinates of the FBGs by wavelength information of reflected light received from the three or more optical cores, and calculating coordinates of the electrodes from the coordinates of the FBGs so as to build a three-dimensional shape of the heart by using a sample point at which the plurality of electrodes make contact.

Abstract: A pacemaker lead for cerclage pacing includes a lead fixing part including a fixing tip whose diameter becomes gradually smaller toward an end of a distal part thereof, a plurality of bipolar electrodes that come into close contact with heart muscle, in an outer circumference of the lead fixing part, and a guide wire insertion through hole through which a guide wire can be inserted thereinto, a lead body part configured to be extended to the lead fixing part, having a stylet insertion through hole formed therein, and a body fixing part formed in a bent shape so as to be fixed to an inner wall of the coronary sinus, and a stylet inserted into the stylet insertion through hole, enabling the pacemaker lead for cerclage pacing to be easily moved within the body of the patient.

Abstract: A pacemaker lead for cerclage pacing includes a lead fixing part including a fixing tip whose diameter becomes gradually smaller toward an end of a distal part thereof, a plurality of bipolar electrodes that come into close contact with heart muscle, in an outer circumference of the lead fixing part, and a guide wire insertion through hole through which a guide wire can be inserted thereinto, a lead body part configured to be extended to the lead fixing part, having a stylet insertion through hole formed therein, and a body fixing part formed in a bent shape so as to be fixed to an inner wall of the coronary sinus, and a stylet inserted into the stylet insertion through hole, enabling the pacemaker lead for cerclage pacing to be easily moved within the body of the patient.

Abstract: A catheter and a surgical medical device. The catheter includes at least; a first elastic member positioned at an end portion of the catheter: a second elastic member connected with the first elastic member, the second elastic member being curved with a first radius of curvature to protrude toward a first direction; a first wire connected with a first surface of the first elastic member, and configured to pull the catheter to bend the catheter in the first direction; a second wire connected with a second surface of the first elastic member, which is opposite to the first surface, and configured to pull the catheter to bend the catheter in a second direction; and a tube containing the first elastic member, the second elastic member, the first wire, and the second wire.

Abstract: A catheter delivery device having an improved mechanism for inserting a catheter into a blood vessel of a patient. The catheter delivery device includes at least: a body including a delivery path of a catheter; a pair of feeders having grippers located on the delivery path of the body and are configured to grip and release the catheter; and a rotator configured to rotate the catheter gripped by the feeders. The feeders move from a grip position where the grippers grip the catheter to a forward position where the grippers advance in a state of gripping the catheter, from the forward position to a grip release position where the grippers release the catheter, from the grip release position to a backward position where the grippers retract in a state of releasing a grip on the catheter, and from the backward position to the grip position.

Abstract: According to the present invention, it is possible to provide a catheter capable of measuring the magnitude and direction of an external force applied to the front end of the catheter with a precise sensitivity by using information regarding the amount of change in the amount of light received by the optical fiber inside the catheter body.

Abstract: The present invention is advantageous in that the shape of the catheter can be sensed by detecting the position of bending of the catheter body, the direction thereof, the angle thereof, and the curvature thereof through a triplet calculation of information regarding three wavelengths that have undergone a transition along respective FBGs provided on three optical cores.

Abstract: A pacemaker lead for cerclage pacing includes a lead fixing part including a fixing tip whose diameter becomes gradually smaller toward an end of a distal part thereof, a plurality of bipolar electrodes that come into close contact with heart muscle, in an outer circumference of the lead fixing part, and a guide wire insertion through hole through which a guide wire can be inserted thereinto, a lead body part configured to be extended to the lead fixing part, having a stylet insertion through hole formed therein, and a body fixing part formed in a bent shape so as to be fixed to an inner wall of the coronary sinus, and a stylet inserted into the stylet insertion through hole, enabling the pacemaker lead for cerclage pacing to be easily moved within the body of the patient.

Abstract: The present invention is a system for three-dimensionally mapping a heart, comprising: a mapping catheter including three or more optical cores each of which has a plurality of FBGs disposed in the lengthwise direction of a catheter body, and a plurality of electrodes disposed in the lengthwise direction of the catheter body and exposed on the outer circumferential surface of the catheter body, wherein the electrodes make contact with the inner wall of the heart; and a mapping processor for calculating coordinates of the FBGs by wavelength information of reflected light received from the three or more optical cores, and calculating coordinates of the electrodes from the coordinates of the FBGs so as to build a three-dimensional shape of the heart by using a sample point at which the plurality of electrodes make contact.

Abstract: An RF catheter for treating hypertrophic cardiomyopathy includes: a body part constituting a catheter body made of a flexible and soft material; and an intraseptal insertion part provided at a distal part of the body part and having one or more electrodes, a tapered tip gradually becoming thinner toward an end thereof, and a guidewire lumen therein, into which a guidewire is inserted, so that during hypertrophic cardiomyopathy treatment, the intraseptal insertion part is inserted into the interventricular septum along the guidewire. A method of treating hypertrophic cardiomyopathy by using an RF ablation catheter includes: i) positioning the guidewire to a hypertrophied septum through a coronary sinus and a septal vein; ii) transferring the RF ablation catheter to the hypertrophied septum; and iii) performing RF ablation by applying RF energy to the electrodes provided at an end part of the RF ablation catheter by using an RF generator.

Abstract: The present disclosure relates to a catheter and a surgical medical device. The catheter includes at least: a first elastic member positioned at an end portion of the catheter, a second elastic member connected with the first elastic member, the second elastic member being curved with a first radius of curvature to protrude toward a first direction; a first wire connected with a first surface of the first elastic member, and configured to pull the catheter to bend the catheter in the first direction; a second wire connected with a second surface of the first elastic member, which is opposite to the first surface, and configured to pull the catheter to bend the catheter in a second direction; and a tube containing the first elastic member, the second elastic member, the first wire, and the second wire.

Abstract: The present disclosure relates to a catheter delivery device having an improved mechanism for inserting a catheter into a blood vessel of a patient. The catheter delivery device includes at least: a body including a delivery path of a catheter; a pair of feeders having grippers located on the delivery path of the body and are configured to grip and release the catheter; and a rotator configured to rotate the catheter gripped by the feeders. The feeders move from a grip position where the grippers grip the catheter to a forward position where the grippers advance in a state of gripping the catheter, from the forward position to a grip release position where the grippers release the catheter, from the grip release position to a backward position where the grippers retract in a state of releasing a grip on the catheter, and from the backward position to the grip position.

Abstract: Provided is a non-invasive system for estimating an atrial signal, including a plurality of sensors to sense a surface electrocardiogram signal, a reference atrial signal generation unit to generate an estimated ventricular signal with respect to a R wave in an electrocardiogram signal from one sensor among the plurality of sensors, and to generate a reference atrial signal by subtracting the estimated ventricular signal from the electrocardiogram signal from the one sensor, and an atrial signal estimation unit to generate an estimated atrial signal by applying a constrained independent component analysis algorithm based on the reference atrial signal to the received surface electrocardiogram signal, and to estimate one of the estimated atrial signals as an actual atrial signal, and a method using the same.

Abstract: Provided is a non-invasive system for estimating an atrial signal, including a plurality of sensors to sense a surface electrocardiogram signal, a reference atrial signal generation unit to generate an estimated ventricular signal with respect to a R wave in an electrocardiogram signal from one sensor among the plurality of sensors, and to generate a reference atrial signal by subtracting the estimated ventricular signal from the electrocardiogram signal from the one sensor, and an atrial signal estimation unit to generate an estimated atrial signal by applying a constrained independent component analysis algorithm based on the reference atrial signal to the received surface electrocardiogram signal, and to estimate one of the estimated atrial signals as an actual atrial signal, and a method using the same.