38 results about "Cardiovascular procedures" patented technology

The present invention provides an improved, Internet-based system that seamlessly collects cardiovascular data from a patient before, during, and after a procedure for EP or an ID. During an EP procedure, the system collects information describing the patient's response to PES and the ablation process, ECG waveforms and their various features, HR and other vital signs, HR variability, cardiac arrhythmias, patient demographics, and patient outcomes. Once these data are collected, the system stores them on an Internet-accessible computer system that can deploy a collection of user-selected and custom-developed algorithms. Before and after the procedure, the system also integrates with body-worn and/or programmers that interrogate implanted devices to collect similar data while the patient is either ambulatory, or in a clinic associated with the hospital. A data-collection/storage module, featuring database interface, stores physiological and procedural information measured from the patient.

A method for performing cardiovascular and surgical procedures includes providing a conduit in the form of a graft/canula placed using balloon dilatation catheter and providing a fixing mechanism for the graft/canula. At least one opening is formed through a wall of the heart substantially at the apex. The escape of blood is prevented through the use of the fixing mechanism. Each of these steps is performed while the heart is beating.

This invention is a single, multichannel catheter useful for extracorporeal circulation of blood to a patient undergoing cardiovascular treatments or surgery. The catheter has three independent channels and an expandable balloon at one end of the catheter. The first channel (34) is the largest and is of a size that allows for delivery of blood to a patient in an amount sufficient to maintain the patient's metabolism and perfusion throughout the treatment or surgery. A second channel (36), smaller than the first, is integrated into the wall of the first channel, and is suitable for delivering a biologically active fluid (e.g., for cardioplegia) to the heart and/or venting the left heart. A third channel (38), also smaller than the first, is integrated into the wall of the first channel, and suitable for delivering a fluid to the balloon for its expansion when positioned in the ascending aorta to occlude the flow of blood to the heart. It is important that the first channel accounts for at least about 70% of the total channel volume. The catheter provides an improved means of performing cardiovascular surgery on a patient using a cardiopulmonary machine for extracorporeal circulation of blood. The catheter is particularly useful for cardiac surgery. The multichannel catheter is best prepared using an extrusion molding technique.

A method and system for magnetic resonance imaging comprises applying at least one radiofrequency magnetization transfer (MT) pulse to a coronary venous region of a subject positioned within a magnetic field, and acquiring magnetic resonance imaging data from the coronary venous region to produce an image of a coronary venous structure. This technique can be utilized as part of a 3D free-breathing, ECG-triggered gradient-echo Cartesian acquisition of the coronary region. One or more magnetization transfer (MT) preparation pulses are used to enhance the contrast between venous blood and myocardium. The MT preparation results in myocardial signal suppression without any significant signal loss in the arterial or venous blood so as to maintain venous blood signal-to-noise ratio while improving contrast between myocardium and veins. The coronary venous structure can comprise one or more of a coronary sinus, a lateral vein and a posterior vein. The image of a coronary venous structure can be acquired in connection with an interventional cardiovascular procedure, such as a cardiac resynchronization therapy.

Tissue-engineered vascular graft is designed to be used in cardiovascular surgeries, especially in coronary artery bypass grafting and peripheral vessels reconstruction procedures. Two-phase electrospinning technique was employed to fabricate a biodegradable polymer graft composed of the porous tubular scaffold supplemented by biologically active molecules, incorporated directly into the matrix walls in order to promote regeneration process of the patient's own vessel wall.

The present invention relates to tissue preservation for autologous and heterologous transplantation. In particular the present invention provides compositions and methods for the long-term storage of surgical conduits ex vivo for subsequent use in coronary artery bypass grafting.

Membranes are provided to be specially developed for use in chambers for artificial circulatory assistance which may be employed primarily in cardiovascular procedures, notably to produce arterial capacitance, to regulate blood pressure, to produce aortic counterpulsation and to pump blood. The membrane may have circular sections that may vary in size or not depending on the function to be performed and are interconnected so that the transition between one section and the other is smooth, regardless of the size of each section. Further, chambers and pumps may be used for cardiopulmonary bypass and a pumping system.

The invention discloses a pressing hemostasis device for internal medicine cardiovascular surgery, and relates to the field of medical instruments. The pressing hemostasis device for the internal medicine cardiovascular surgery comprises a hemostasis device base, a fixed clamping end structural part, a movable clamping end structural part, a tightening end structural part and pressure hemostasis gauze, wherein the hemostasis device base comprises an arc-shaped groove fixing block and an arc-shaped rubber cushion block, the arc-shaped rubber cushion block is fixedly connected to the bottom of the arc-shaped groove fixing block through a bolt, the fixed clamping end structural part is fixedly connected to the left side of the hemostasis device base, and the movable clamping end structural part is arranged on the right side of the hemostasis device base. When the pressing hemostasis device for the internal medicine cardiovascular surgery is processed and manufactured, the pressing hemostasis device is convenient to manufacture, low in cost and particularly suitable for pressing hemostasis operation in the surgery of internal medicine cardiovascular diseases, the device has important significance in the internal medicine cardiovascular surgery, the surgery difficulty is reduced, the risk of the surgery is avoided, and the device is suitable for popularization.

An apparatus for offering embolic protection is provided that includes a sponge operable to be positioned in an area of a patient who is to undergo a cardiovascular procedure. The sponge is operable to collect debris present in or proximate to the area and to allow a portion of blood flow or no blood flow associated with the area to continue while the debris is collected.

The invention relates to a preparation method of a Se-coated BSA nano-drug and application of the Se-coated BSA nano-drug in acute kidney injury, and belongs to the field of biological materials. The Se-coated BSA nano-drug synthesized by the invention is a safe nano-material capable of being used for intravenous injection, can be used for managing injury caused by hypotension of ischemic kidney and cardiovascular surgery, and aims to allow Se-coated BSA to be released after kidney I/R so as to avoid systemic toxicity, and the specific mechanism is that Se-coated BSA up-regulates expression of Gpx1 mRNA and protein level, removes ROS, inhibits accumulation of NLRP3 to prevent assembly of inflammatory bodies. The activation of a downstream inflammation signaling pathway and the phosphorylation of NF-beta B are realized, and the progress from AKI to CKD is slowed down.

An augmented reality system includes an augmented reality display system; and processing circuitry in communication with the augmented reality display system. The processing circuity configured to receive, from a mapping system, data associated with a subject's anatomical feature; receive, from a navigation system, an indication of a position of a treatment device within the subject's anatomical feature; and display, via the augmented reality display system, a virtual organ object and at least one of the data associated with the subject's anatomical feature and the indication of the position of the treatment device within the subject's anatomical feature overlaying a real-world environment viewable by a user via the augmented reality display system.

The invention discloses a movable sickbed with a gear transmission structure for a cardiovascular surgery patient, and relates to the field of medical sickbeds, the movable sickbed comprises a bed body, the bottom of the bed body is provided with a massage driving mechanism which enables a massage column to move up and down in a reciprocating mode to achieve a massage function; a blood activating transmission mechanism used for driving the movable plate to slide in a reciprocating mode to achieve curled and stretched movement is arranged, and linkage of the blood activating transmission mechanism and the massage driving mechanism is controlled through an air cylinder. A driving motor is started to drive a first rotating shaft to rotate, so that a driving wheel is driven to rotate in a gear ring, a first rack is driven to move left and right through a curved bar, and a magnet can be driven to reciprocate left and right in a massage box. As magnetic poles of the magnet block and the magnet are set in opposite directions, the principle of repulsion by the same pole can be used, massage columns are driven to move upwards to massage the back of the patient, and amyotrophy of the patient is prevented. The problems that an existing device cannot massage a patient, rehabilitation training cannot be conducted on the patient, and blood circulation cannot be promoted are solved.

The present invention is directed to systems and methods for imaging during medical procedures and to apparatus and methods for making and using catheters including positional sensors for imaging systems for such procedures. The system is provided for facilitating imaging a patient during a medical procedure that includes an electromagnetic field generator for generating an electromagnetic field around a desired region of a patient's body to provide an external reference frame; an elongate member comprising a proximal end, a distal end sized for introduction into the patient's body, and a distal portion carrying a plurality of sensors spaced apart from one another such that the sensors may be positioned within the patient's body; and a processor for receiving signals from the sensors generated in response to the electromagnetic field, the processor configured to identify when the plurality of sensors move relative to the external reference frame to identify corresponding movement of the patient's body.

The invention discloses a cardiovascular surgery risk assessment system based on big data analysis. The cardiovascular surgery risk assessment system comprises a data acquisition unit, a database, an identification unit, a data analysis unit, a data judgment unit, a risk assessment unit and intelligent equipment, wherein the data acquisition unit is used for acquiring related data of a cardiovascular surgery patient, calibrating the acquired related data as patient information and transmitting the patient information to the identification unit; case information related to cardiovascular surgery is stored in the database, data related to the cardiovascular surgery patient is collected through the data acquisition unit, the collected related data is calibrated as patient information, and the patient information is transmitted to the recognition unit; and the recognition unit obtains the case information from the database and performs recognition operation on the case information and the patient information together, so that the patient information and specific data in the case information are quickly recognized, the recognition time is saved, the working efficiency is improved, and the accuracy of data recognition is improved.

The present invention relates to supporting an interventional procedure involving a device, such as a cardiovascular procedure. First and second image data acquired using different imaging apparatus, for example X-ray and ultrasound image data, are co-registered. A device is firstly identified in 2D X-ray images; corresponding identification information is then used to generate a view from 3D ultrasound image data that includes a cross-section of the device to be identified subsequently. Following the identification, a 3D position and orientation of the device are available. Such information may advantageously be used in setting up optimal ultrasound views for image-based guidance of the ongoing procedure.

The invention discloses a device for protecting cerebral vessels in a cardiovascular surgery. The device comprises a catheter, a filter screen sleeved outside the catheter and a bending adjusting catheter, wherein the filter screen comprises a filter screen frame and a film layer wrapped outside the filter screen frame, microporous structures are arranged inside the film layer with a certain radian, the areas of the microporous structures are different, annular supporting wires and side supporting wires are arranged in the filter screen frame, and the interior of the bending adjusting catheter comprises a multi-layer composite catheter structure and a pre-shaping structure. According to the invention, the strength of the filter screen is improved, so that breakage can be avoided while the filter screen can be integrally developed so as to accurately judge whether the filter screen completely extends out of the catheter or not, the required force value can be reduced when the filter screen is recovered, breakage of the filter screen is avoided, and the three-dimensional bending effect of the bending adjusting catheter can be achieved by using a single drawing wire.

The invention discloses a pressing hemostasis device for cardiovascular surgery in the internal medicine department, and relates to the technical field of medical treatment. The device comprises a base, pressure hemostatic gauze, a supporting frame and an expanding mechanism, an unwinding box and a first clamping mechanism are arranged on the left side face of the base, a second clamping mechanism and a cutting mechanism are arranged on the right side face of the base, a winding drum is rotationally arranged in the unwinding box, a pressure hemostatic gauze is wound on the winding drum, and the pressure hemostatic gauze sequentially penetrates through the first clamping mechanism, the second clamping mechanism and the cutting mechanism. When the pressure hemostatic gauze is pressed, the pressure hemostatic gauze is completely expanded through the expanding mechanism, the pressure hemostatic gauze is prevented from deviating or gathering together, the hemostatic effect is greatly improved, and the pressure hemostatic gauze is convenient to replace by arranging the unwinding box, the winding drum and the cutting mechanism; and the problems that according to an existing hemostasis device, pressure hemostasis gauze is not convenient to replace, deviation is prone to occurring during pressing, and the hemostasis effect is not ideal are solved.