17 results about "Mitral valve" patented technology

The health-preserving conditioning tea is prepared from the following raw materials in parts by weight: 3 to 8g of earthworms, 2 to 9g of flos carthami, 4 to 7g of ground beetles, 5 to 10g of leeches, 1.5 to 6g of radix aucklandiae, 3 to 8g of herba verbenae, 2 to 5g of gadflies, 3 to 7g of arisaema cum bile, 6 to 10g of radix salviae miltiorrhizae, 4 to 8g of radix paeoniae rubra, 2 to 6g of bombyx batryticatus, 1.5 to 5g of scorpions and 4 to 9g of folium ginkgo. The conditioning tea has the beneficial effects that the conditioning tea not only can replace traditional western medicines and avoid drug resistance and side effects, but also is convenient to carry and take after being bagged, can relieve and reduce the symptoms of cardiovascular and cerebrovascular plaques, namely blockage, during long-term taking according to the treatment course, can prevent cardiovascular and cerebrovascular diseases, activate blood and promote menstruation, and can be used for treating cardiovascular and cerebrovascular diseases. The traditional Chinese medicine composition has the effects of tonifying qi, preserving health, reducing blood fat and blood pressure, and also can be used for treating diseases such as chest distress, chest pain, cardiac hypertrophy, mitral valve and tricuspid valve regurgitation, myocardial ischemia and the like.

Prosthetic valves are provided, e.g., for replacing a mitral or aortic valve of a patient, that includes an annular valve body including an inlet end, an outlet end, and one or more valve members for selectively opening and closing a passage between the inlet and outlet ends, a sewing cuff attached around an outer perimeter of the valve body, and a flexible skirt removably attached around the outer perimeter adjacent the sewing cuff. The prosthetic valve may be introduced into a patient's body, positioned adjacent a valve annulus, and the sewing cuff may be secured around a perimeter of the valve annulus. The skirt may be secured to tissue adjacent the valve annulus to further seal the prosthetic valve around the valve annulus, or the skirt may be removed from the valve body, e.g., if the annulus is sufficiently sealed by the sewing cuff.

The invention discloses two special valves for surgical mitral valves and tricuspid valves after decay, which belong to the technical field of medical instruments and comprise a middle cylindrical section, two ends of the middle cylindrical section are respectively connected with an upper-end horn mouth and a lower-end horn mouth, and transition sections with smooth inner walls are formed between the horn mouths at two ends and the middle cylindrical section through gradually changing diameters. The edge of the upper-end horn mouth and the edge of the lower-end horn mouth are each formed by arranging a plurality of rhombus units in the circumferential direction, a plurality of contact points are arranged on the upper-end horn mouth, the contact points are distributed in a high-low alternating mode in the circumferential direction, each contact point is located between every two adjacent rhombus units, and the device is simple in structure, capable of being recycled and repositioned and small in minimally invasive implantation trauma.

To provide a deployment tool intended to facilitate implantation of an implant, such as a prosthetic device (e.g., a prosthetic valve), at one of the native mitral, aortic, tricuspid, or pulmonary valve regions of a human heart.SOLUTION: The delivery catheter, in various embodiments, is configured to deliver the anchoring device to an annulus of a native valve of a patient's heart, where the anchoring device can better secure the prosthesis to the native valve annulus. The sheath catheter may be utilized to deliver the delivery catheter and the catheter for deploying the prosthetic valve to the anchor device.SELECTED DRAWING: Figure 27

The invention relates to the technical field of medical instruments, in particular to a special cardiac surgery head frame with a multi-body-position fixing structure, which comprises a mounting frame, a rotating rod is rotatably connected to the inner wall of the mounting frame, two round tubes are rotatably connected to the outer wall of the rotating rod, and a first fixing block and a second fixing block are fixedly connected to the outer walls of the round tubes respectively. Electromagnets are fixedly connected to the positions, corresponding to the first fixing block and the second fixing block, of the inner wall of the mounting frame, and through magnetic attraction control and arc-shaped limiting block design, switching of three modes of synchronous rotation of the head and the body, independent rotation of the head and independent rotation of the body is achieved; when the head is placed, a conical linkage structure is triggered by means of gravity, a supplementary air bag is extruded to supply air to a fixed air bag, placing, namely clamping and air bag attaching to the head are achieved, the risk of pressure sores is reduced, a fourth spring can drive the air bag to automatically return air and reset, manual operation is not needed, and operation is convenient. And the operation interference during the operation is reduced.

The present disclosure discloses a prosthetic valve annulus assembly comprising: an outer tube comprising an internal lumen and a plurality of windows; and a plurality of anchors positioned inside the outer tube and around a perimeter of the outer tube, where the plurality of anchors are configured to be ejected from a plurality of windows to anchor the prosthetic valve annulus assembly to annulus tissue of a patient, characterized in that the plurality of anchors are configured to be ejected in different directions, and wherein a first portion of the plurality of anchors is configured to be ejected to the ventricular side of the annulus tissue and a second portion of the plurality of anchors is configured to be ejected to the atrial side of the annulus tissue.

Implantable prosthetic device (100) that helps to seal native heart valves and prevent or reduce regurgitation through them, the prosthetic device (100) comprising: a coaptation element (110); several paddles (120, 122) that are movable between a closed position and an open position to accommodate native mitral or tricuspid valve leaflets (42, 44) between the paddles (120, 122) and the coaptation element (110); and a double-ended prong clamp (3000) having a base (3010) with joint sections (3020) located near the coaptation element (110) and movable arms (3030) extending from both ends of the base (3010); wherein each of the movable arms (3030) can be moved from an open position to a closed position in order to press the native mitral or tricuspid valve tissue (42, 44) against one of the several paddles (120, 122) respectively.

The utility model discloses a transcatheter mitral valve repair simulation simulator, which comprises a liquid storage tank, an installation port is arranged on the side wall of the liquid storage tank, the installation port is provided with a cable gland, and the cable gland is used for penetrating through a surgical instrument and realizing dynamic sealing with the surgical instrument; the model assembly is arranged in the liquid storage tank, the model assembly is used for simulating a human heart structure, and the model assembly comprises a heart simulation body and a lower cavity approach tube which are connected with each other; the heart simulation body comprises a simulation main body, an atrial septum simulation part arranged on the simulation main body and a left atrium arranged on the first side of the atrial septum simulation part, the atrial septum simulation part is configured to be punctured by a surgical instrument, the left atrium is provided with a left atrioventricular opening, and the left atrioventricular opening is provided with a mitral valve simulation part. The first end of the lower cavity inlet pipe is communicated with the space of the second side of the atrial septum simulation part, and the second end of the lower cavity inlet pipe corresponds to the cable gland in position.

A prosthetic heart valve includes three prosthetic valve leaflets coupled together at three commissure regions to form a central flow path. A collapsible and expandable valve frame for supporting the prosthetic valve leaflets is provided. The valve frame includes three cantilevered support arms for supporting the three commissure regions, and gaps are provided between the three cantilevered support arms for improving leaflet engagement and reducing thrombosis. The valve frame is positioned within an outer sealing frame, and the sealing frame is anchored to surrounding heart tissue. The prosthetic heart valve is adapted to be delivered using minimally invasive transcatheter surgery. The prosthetic heart valve is preferably used to replace a native mitral or tricuspid valve.

This application relates to the field of medical device technology, and provides a suture locking device, comprising: a suture locking handle; a sheath connected to the suture locking handle; and a cannula assembly connected to the distal end of the sheath, the cannula assembly having a receiving space for accommodating a pull-out element, and the cannula assembly having a first notch for installing and releasing the suture locking mechanism. The technical solution of this application enables the rapid separation of the suture locking mechanism from the suture locking device during annular retraction surgery of the mitral and tricuspid valves.

Systems (100) and methods are provided for adjustable and removable implants (102) to repair heart valves such as the mitral, tricuspid or aortic valves. The implants (102) are capable of being delivered to the heart in a simple and non-invasive manner through the apex of the heart. The implants include a prosthetic valve portion (106) coupled to a proximal end of a shaft and an anchoring portion (110) coupled to a distal end of the shaft. The prosthetic valve is suspended within the opening of the heart valve while the anchoring portion is secured to the apex of the heart. Upon deployment of the implant, the distance between the prosthetic valve portion and the anchoring portion can be adjusted and / or the implant and / or portions thereof can be rotated to in turn change the position of the prosthetic valve within the heart valve. This can be done to correct for migration of the implant after implantation, mitigating potential complications.

The present disclosure relates to devices, systems, and methods for cutting leaflets in cardiac valves including mitral, aortic, and tricuspid valves.

A device and method for anchoring or stabilizing a transcatheter bioprosthetic heart valve and treating or repairing paravalvular leaks following replacement of a patient's native cardiac valve, including the aortic, mitral, tricuspid, and pulmonary valves. The device includes a scaffold anchor that is placed through a native leaflet and into the adjacent annular region to anchor the transcatheter bio prosthetic heart valve due to lack of calcification, tissue asymmetry, or irregular annular morphology. The scaffold anchor may be delivered and positioned with standard transcatheter bioprosthetic heart valve delivery procedures, such as TAVR, TMVR, TTVR, and TPVR.

The present disclosure provides apparatus, systems, and methods for various devices such as prosthetic valves. Some examples relate to improvements in anchoring at a native heart valve, which may reduce trauma that may be caused to a treatment or implantation site. Compliance and flexibility anchoring features and methods are disclosed to reduce the forces withstood by a treatment or implantation site around the mitral or tricuspid leaflet, including heart tissue. Improved device deployment mechanisms, including power-on methods, are also disclosed.

The invention relates to a transcatheter closure device for secundum atrial septal defects (ASDs) in the absence of posterior inferior rim. The transcatheter closure device (10) comprises fixation wires (12) connected to a left occluder disc (16) and / or a right occluder disc (20). In a first occluder form (A), it comprises a first ring fixator (14) provided at an end of the fixation wire (12) connected to the left occluder disc (16) and a second ring fixator (18) provided at an end of the fixation wire (12) connected to the right occluder disc (20). In a second occluder form (B), it comprises a posterior fixation lobe (24), an anterior fixation lobe (26), a lower fixation lobe (28) provided by coaxially connecting the fixation wires (12) to the left occluder disc (16) to provide a petal shape.