14 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.

The utility model provides an auxiliary clamping simulation device for treating mitral valve regurgitation. The auxiliary clamping simulation device comprises a water bath, a rotating device arranged on the outer side of the water bath and a cam mechanism connected with the rotating device. The bottom support is fixed in the water bath, the valve ring structure is arranged on the bottom support, and the valve leaflet is connected with the valve ring structure and is connected with the cam mechanism through chordae tendineae. The valve leaflet is of a trumpet-like shell structure, one end of the valve leaflet is flat and provided with a first long-strip-shaped opening, the other end of the valve leaflet is cylindrical and provided with a second round opening, and the first opening and the second opening are communicated with each other. According to the auxiliary clamping simulation device for treating mitral valve regurgitation, training simulation operation can be carried out on the mitral valve repairing process, and experiment / clinical operation risks can be reduced.

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.

Mitral valve prolapse and mitral regurgitation can be treating by implanting in the mitral annulus a transvalvular intraannular band. The band has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The central portion is positioned so that it extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets. The band may be implanted via translumenal access or via thoracotomy.

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.

The invention relates to the technical field of medical information processing, and discloses a rheumatic mitral valve operation success probability prediction method, device and equipment, and the method comprises the steps: obtaining target information of a mitral valve of a target object, the target information at least comprising mitral valve calcification information, mitral valve leaflet fiber thickening information and papillary muscle symmetry information; the target information is obtained based on a cardiac computed tomography image of a target object; inputting the target information into a pre-constructed and trained operation success probability prediction model for prediction; the operation success probability prediction model is used for predicting the probability of successful repair of the mitral valve; and obtaining the operation success probability output by the operation success probability prediction model, wherein the operation success probability is used for guiding the selection of the mitral valve operation strategy of the target object. According to the method, the probability of good repair of the mitral valve of the RMD patient can be accurately predicted, so that surgical treatment prompts and guidance are provided, and the optimal surgical scheme can be selected according to lesion conditions in a personalized manner.

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 application relates to a stent for repairing a mitral valve, which comprises a framework and a membrane assembly. The framework comprises an atrium limiting piece and a membrane fixing piece. The membrane fixing piece comprises a V-shaped supporting section and a first sleeve and a second sleeve which are symmetrically connected to the left and right ends of the V-shaped supporting section. The membrane assembly is fixed in the membrane fixing piece. The atrium limiting piece comprises a first limiting curve section on the front side and a second limiting curve section on the back side. The first and second limiting curve sections are connected to the upper ends of the first and second sleeves after being crossed twice on the left and right sides and forming annular parts. The framework further comprises an upward pressing piece on the front side and / or the back side of the membrane fixing piece. The lower end of the upward pressing piece is connected to the lower tip of the V-shaped supporting section, and the upper end of the upward pressing piece is pressed against the lower surface of the mitral valve ring. The application can effectively overcome the defects of the existing stents, such as unstable anchoring, failure to recover to the initial state, limited indications and increased thrombosis risk during use.

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.

The invention discloses an auxiliary reconstruction device and method for valve chordae tendineae, and belongs to the field of minimally invasive cardiac surgery instruments, and the auxiliary reconstruction device comprises a holding assembly, a pressing rod sheath, a pressing rod and a fixing frame. The method has the innovation points as follows: step innovation: the traditional steps are simplified into'temporary fixation-evaluation-final fixation ', the operation time is remarkably shortened, and the success rate is improved; precise control is achieved, specifically, the lock catch assembly can lock or release the pressing rod at the holding end in real time, stepless adjustment of the height of the chordae tendineae is achieved, and thread knots are prevented from sliding; the tension of the chordae tendineae can be repeatedly and finely adjusted and the closing condition of the valve leaflet can be instantly verified in the operation, and repeated knot loosening and threading are not needed; the whole structure is simple, high-temperature and high-pressure sterilization resistance is achieved, repeated use can be achieved, and disposable consumables and patient expenses are not increased; minimally invasive compatibility: the method is particularly suitable for a small-incision mitral valve repair technology; the device has the outstanding advantages in the aspects of simplifying the operation process, improving the fixing precision and reducing the medical cost, and can be widely applied to various mitral valve chordae tendineae reconstruction operations.

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.