9 results about "Mitral valve operation" patented technology

The invention discloses a thoracoscope minimally invasive cardiac surgery navigation system based on multi-modal image fusion, and the system comprises the steps: constructing a 5D heart digital twin containing an anatomical structure, a soft tissue boundary, metabolic activity and electrophysiological information through fusing preoperative CT, MRI, PET and intraoperative ultrasonic images; real-time dynamic registration is realized by using an electrocardio gating driven biomechanical model; superposing the multi-color coding navigation information to the visual field of the thoracoscope through a wavelength selection type spectroscope; a dynamic risk scoring model is constructed based on the distance, the speed and the tissue vulnerability, and three-level grading intervention is triggered; a miniature force feedback actuator is integrated to realize closed-loop control; and pre-operation virtual drilling and post-operation federal learning optimization are supported. The system remarkably improves the surgical precision and safety, and is suitable for high-difficulty heart minimally invasive surgeries such as mitral valve repair and atrial fibrillation ablation.

This invention provides an apparatus for repairing heart valves and a method for implanting anchors and repairing heart valves. The apparatus includes: a body; a component attached to the body at a first end and having a plurality of positioning cords extending laterally across a space between the component and away from a second end of the component opposite to the first end; a tube suspended from the plurality of positioning cords; and an adjustment cord extending through the tube. The method includes: implanting at least one annular anchor into the mitral valve annulus of a heart valve; implanting papillary anchors through each papillary muscle of the heart; delivering and positioning the apparatus for repairing the heart valve within the heart valve using at least one annular anchor and papillary anchors; and adjusting the apparatus to adjust the degree of atrial displacement of the mitral valve leaflets during ventricular systole.

Disclosed in the present invention is a capturable and fixable mitral valve repair device. The present invention relates to the technical field of mitral valve repair devices. The capturable and fixable mitral valve repair device comprises an exposure structure. The exposure structure comprises a traction line, the traction line is fixedly connected to a traction ring by means of a lock-and-key structure, a coaxial rotating ring is arranged on one side of the traction ring, and an adjustable blade is arranged outside the rotating ring. Said device further comprises a capture structure. The capture structure penetrates through the exposure structure during the expansion and exposure of the exposure structure, and the capture structure is unfolded from a folded state to a capture state. Said device further comprises a traction rod. The exposure structure and the capture structure are both located on the traction rod. According to the present invention, by means of integrating the exposure structure and the capture structure into a whole by the traction rod, after completing the exposure in mitral valve repair surgery, the mitral valve can be rapidly captured according to an exposure result and pre-estimation. A capture position and a capture space can be adjusted by a doctor according to actual conditions, thereby reducing the duration and operation risks of the repair surgery.

An intraoperative saline test catheter for mitral valve repair. The intraoperative saline test catheter comprises a saline injection hose, wherein the saline injection hose is fixed to a saline-inlet-end threaded joint at one end, and is fixed to a saline-outlet-end member at the other end. An inner cavity is provided in the hose wall of the saline injection hose, and a flexible metal member is fixed in the inner cavity, with the axis of the flexible metal member being parallel to the axis of the saline injection hose. The technical effects of the present invention, compared with the prior art, lie in that the provision of the metal member enables the present invention to be adjusted to a suitable angle without affecting the bending thereof, and the present invention can also be shaped after being bent, and can stably maintain its configuration, thereby facilitating accurate inspection of the state of a heart valve.

The present invention relates to mitral valve repair and replacement devices and methods. An implant and method for repairing and / or replacing the function of a native mitral valve, in various embodiments, is configured to reduce or eliminate mitral regurgitation and residual mitral valve leakage. A coiled anchor with a central turn that reduces in size after implantation is used to approximate the native mitral annulus size and reshape the native mitral annulus to reduce valve leakage. A clip can be further applied to the native valve leaflets to reduce the size of the native mitral annulus and reduce leakage therethrough. An artificial heart valve can be implanted in the coiled anchor to replace and further improve the function of the valve. In some cases, an artificial valve can be implanted in the clipped valve, with the clip detached from one of the native valve leaflets to provide space for the artificial valve to expand.

This invention discloses a device and method for chordae tendineae-assisted mitral valve reconstruction, belonging to the field of minimally invasive cardiac surgical instruments. It includes a gripping component, a pressure bar sheath, a pressure bar, and a fixation frame. The innovative aspects of this invention are as follows: Innovative procedures: The traditional steps are simplified to "temporary fixation → assessment → final fixation," significantly shortening the operation time and improving the success rate; Precise control: The locking component can lock or release the pressure bar in real time at the gripping end, achieving stepless adjustment of the chordae tendineae height and preventing suture slippage; Repeatable adjustment: The tension of the chordae tendineae can be repeatedly fine-tuned during the operation, and the closure of the valve leaflets can be verified immediately, eliminating the need for repeated loosening and threading of sutures; Economical and safe: The overall structure is simple, resistant to high-temperature and high-pressure sterilization, and reusable, without increasing disposable consumables or patient costs; Minimally invasive compatibility: Particularly suitable for small-incision mitral valve repair techniques; This invention has outstanding advantages in simplifying the operation process, improving fixation accuracy, and reducing medical costs, and can be widely applied to various mitral valve chordae tendineae reconstruction surgeries.

1. Name of the product in this design: Valve reshaping ring (semi-ring). 2. Purpose of this design: An annuloplasty ring for rheumatic mitral valve repair surgery. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The invention discloses a special forming ring for a rheumatic mitral valve repair operation. The special forming ring is used for being sewn at the valve ring position, surrounding an anterior valve leaflet and a posterior valve leaflet, in a mitral valve. The special forming ring has a continuous peripheral shape surrounding the center hole, the special forming ring comprises a front section and a rear section which are oppositely arranged, and a pair of junction narrowing sections located at the junction of the front section and the rear section, and the junction narrowing sections are locally arranged in the circumferential direction of the special forming ring in an outward protruding mode; the junction narrowing section can enable the junction area to be narrowed so as to increase the involution area of the anterior valve leaflet and the posterior valve leaflet in the junction area. Junction suture depending on the experience of an operator in the rheumatic mitral valve repair process is converted into the fixing function of the forming ring for the first time, and the standardization level and generalizability of the rheumatic mitral valve repair operation are improved; the problems that an existing forming ring is poor in adaptability in a rheumatic disease mitral valve repair operation, the postoperative residual closure insufficiency proportion is high, and the operation depends on experience are solved.

An artificial heart valve angioplasty ring is a ring body comprising a support tube, the outer layer of which is a biocompatible medical implantable polyester fabric, and an inner core inside the support tube. The inner core adopts an inner core cluster structure, which is composed of multiple similar concentric coils. The angioplasty ring has better support and myocardial compliance, and the gap between the silicone tube and the inner core filaments further enhances its support and compliance. The clusters of finer inner core filaments with gaps contribute to the lightweight design of the angioplasty ring.