71 results about "Tricuspid valve" patented technology

Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer-guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.

A stabilizer sleeve is disclosed for use with cardiac implantable electronic device leads. The sleeve comprises a tubular body sized to receive the lead and shaped to bias the lead toward a desired anatomical location, thereby reducing migration, dislodgement, and interference with cardiac structures. The sleeve may be introduced with the lead as a unitary assembly or added after lead placement. Various embodiments include a slitted body for expansion, radiopaque markers for visualization, detachable nose-cone tips for guidewire tracking, and antimicrobial coatings. The sleeve may be formed of polymers, alloys, or composite materials, and may include features such as texturing or anchoring projections for tissue engagement. Applications include positioning within a tricuspid valve commissure to minimize regurgitation and stabilizing left ventricular leads within branches of the coronary sinus. The device and methods described provide improved long-term stability and performance of implanted cardiac leads.

Apparatus and methods for repairing a cardiac valve, e.g., a tricuspid valve, are provided. The apparatus may include a prosthetic device coupled to an elongated support coupled to a stent configured to be implanted within a vessel, e.g., the superior vena cava, to suspend and maintain the prosthetic device within the cardiac valve. The support may include a proximal, delivery portion detachably coupled, in a delivery state, to a distal, implantable portion coupled to the prosthetic device. The prosthetic device may be formed of biocompatible material coupled to a frame, and may have prosthetic leaflets that allows blood to flow therethrough in one direction during diastole, but prevents blood regurgitation during systole. The stent further may include features configured to resist migration of the stent within the vessel, as well as to prevent in-folding of the stent during deployment.

A traditional Chinese medicine formula for treating blood vessel clogging belongs to the field of traditional Chinese medicine formulas, and comprises the following main raw materials: 29-31 parts of black pearl, 11-13 parts of codonopsis pilosula, 7-9 parts of saffron crocus, 8-10 parts of angelica sinensis, 190-210 parts of leek, 9-11 parts of pseudo-ginseng, 37-43 parts of hawthorn, 95-105 parts of astragalus membranaceus, 18-22 parts of kudzu vine root, 8-10 parts of peach kernel, 8-10 parts of prepared rehmannia root, 9-11 parts of radix rehmanniae, 11-13 parts of white paeony root, 3 parts of red ginseng, 9-11 parts of radix ophiopogonis, 14-16 parts of spina date seed, 11-13 parts of Chinese yam, 14-15 parts of schisandra chinensis, 9-11 parts of polygonum multiflorum, 7-9 parts of cinnamon, 18-21 , 13-15 parts of anise and 12-14 parts of rhizoma polygonati. The traditional Chinese medicine composition has an obvious improvement effect on coronary artery insufficiency, myocardial ischemia, mitral valve, tricuspid valve, aortic valve regurgitation, chronic heart failure, patients needing operation bypass stenting, angina pectoris, myocardial infarction sequelae, cerebral ischemia, cerebrovascular sequelae and other symptoms caused by cardiac insufficiency, the dosage is small, the effect is fast, the cure rate is high, relapse is not prone to occurring, and the traditional Chinese medicine composition is suitable for clinical application. The effects of tonifying qi and activating blood, dredging channels and relieving pain, eliminating phlegm and removing blood stasis, tonifying heart and soothing nerves and the like can be achieved.

The present invention discloses a shock wave balloon dilation catheter comprising a balloon and a dilation catheter. The balloon includes a blood flow passage on its outer circumference and / or interior, extending axially and penetrating through the outer circumference and / or center. A shock wave generator is arranged within the balloon chamber, where conductive fluid can be introduced. The distal end of the dilation catheter passes through or into the balloon and is sealedly connected to the balloon. A fluid passage in the catheter communicates with the balloon chamber, and the shock wave generator is fixed to the portion of the catheter within the balloon. The dilation catheter is provided with a guide wire lumen. The present invention further discloses a shock wave balloon dilation catheter for tricuspid valve openings, which designed to avoid blood flow blockage and reduce the hemodynamic impact during the procedure, enhancing safety and treatment effectiveness.

Medical delivery system for accessing a tricuspid valve via an inferior vena cava, including an outer guide catheter, an inner guide catheter and an interventional catheter. The first deflection portion of the outer guide catheter is steerable to define a first outer- guide-catheter curve and the second deflection portion of the outer guide catheter is steerable to define a second outer-guide-catheter curve and the first deflection portion of the inner guide catheter is steerable to define a first inner-guide-catheter curve.

A surgical suturing device is disclosed. The surgical suturing device may include a first or a second tissue gap, a first pair of needles configured to be movable across the first tissue gap, a second pair of needles configured to be movable across the second tissue gap, and a first suture having first and second ends. The surgical suturing device also includes a second suture having first and second ends and a needle actuator which selectively engages either: the first pair of needles to drive them through the first tissue gap and into communication with the first end of the first suture and the first end of the second suture, respectively; or the second pair of needles to drive them through the second tissue gap and into communication with the second end of the first suture and the second end of the second suture.

Systems and methods are provided for repairing a heart valve, such as a mitral, tricuspid or aortic valve, using an adjustable and removable implant that can be delivered to the heart through the apex in a simplified and non-invasive manner. The implant can include a prosthetic valve portion coupled to a proximal end of a shaft, and an anchor portion coupled to a distal end of the shaft. The prosthetic valve can be suspended within an opening of the heart valve while the anchor portion is affixed to the apex of the heart. When the implant is deployed, a distance between the prosthetic valve portion and the anchor portion can be adjusted, and / or the implant or a portion thereof can be rotated to thereby change the position of the prosthetic valve within the heart valve. This can allow correcting for post-implantation movements of the implant to mitigate potential complications.

The utility model relates to the technical field of medical instruments, in particular to a valve repairing device. The device comprises a rack (1), a gear (3) and a gear box (4), the gear (3) and part of the rack (1) are located in the gear box (4), the gear (3) is connected with the rack (1) in a meshed mode, and the rack (1) can be driven to move by rotating the gear (3). The device is suitable for repairing mitral valve and tricuspid valve regurgitation, the involution of the valve rings can be safely and effectively realized through the unique gear and rack structural design, and the problem that the valve leaflets are easy to damage in the traditional method is solved.

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.

Prosthetic heart valves may be delivered to a targeted native heart valve site via one or more delivery catheters. In some embodiments, the prosthetic heart valve includes structural features that securely anchor the prosthetic heart valve to the anatomy at the site of the native heart valve. Such structural features can provide robust migration resistance. In addition, the prosthetic heart valves can include structural features that improve sealing between the prosthetic valve and native valve anatomy to mitigate paravalvular leakage. In particular implementations, the prosthetic heart valves occupy a small delivery profile, thereby facilitating a smaller delivery catheter system for advancement to the heart. Some delivery catheter systems can include a curved inner catheter to facilitate deployment of the prosthetic heart valve to a native tricuspid valve site via a superior vena cava or inferior vena cava.

The invention relates to the technical field of internal medicine operations, and discloses an ectopic implantation valve stent system for treating tricuspid regurgitation, which comprises a right atrium and a right ventricle fixedly connected to the right atrium; the tricuspid valve is fixedly connected between the right atrium and the right ventricle; the cannula assembly is connected into the tricuspid valve in a sliding mode; the supporting assembly is fixedly connected to the right atrium; the bracket assembly is fixedly connected to the supporting assembly; the valve assembly is fixedly connected to the supporting assembly; one part of the supporting assembly is fixedly connected to the right atrium, and the other part of the supporting assembly is fixedly connected to the tricuspid valve. Liquid medicine is injected into the curing tube through the sealing nozzle through the injection tube, after the liquid medicine and the curing liquid are mixed, the curing liquid is cured, meanwhile, barbed nails on the fixing plate layer are used for puncturing the root of the tricuspid valve for further fixing, the stent assembly and the valve assembly are not prone to falling off after being installed, the service time is longer, and the fixing effect is better. Patients do not need to have mental stress due to the falling risk of the support assembly.

Devices, systems and methods are described herein to facilitate treatment of a heart valve. Concepts for controlling height and depth and rotation of the delivery system may be actuated to navigate to a desired position and orientation for implantation. A treatment device deployed too deep or ventricular in a tricuspid deployment may be adjusted in position through use of a height adjustment or actuation of the delivery system. Prosthetic heart valves and other treatment devices for improved deployment to a native heart valve are disclosed.

The invention discloses a pulmonary artery thrombus aspiration catheter and a manufacturing method thereof, and belongs to the technical field of medical instruments. The pulmonary artery thrombus aspiration catheter comprises a catheter body, a catheter head end and a skirt structure, the catheter head end is in a dome shape and arranged at the far end of the catheter body, the catheter head end has flexibility, and a pre-incision is formed in the top of the far end; the skirt edge structure comprises a self-expansion framework and a covering film arranged on the peripheral side of the self-expansion framework, the self-expansion framework has elasticity, and the self-expansion framework can be restrained and folded in the radial direction and can be automatically unfolded in the radial direction to be in a horn mouth shape after being restrained; the near end of the self-expanding skeleton is connected to the catheter body, the far end of the skirt structure is located in the catheter head end when folded, and the pre-incision is closed; when the far end of the skirt structure is unfolded, the catheter head end can be opened, the pre-incision is opened, at least two valve leaflets are formed, the far end edge of the pre-incision does not exceed the far end edge of the skirt structure, a gap is formed between the adjacent valve leaflets and the skirt structure, and damage to the tricuspid valve and other parts can be reduced.

A system for improving the function of a defective heart includes a tubular membrane, a replacement valve, a set of one or more inlets, and a set of one or more outlets. The tubular membrane encompasses (i) a first chamber of the system, shaped to conform to an interior region of a right atrium of the heart, and (ii) a second chamber of the system, shaped to conform to an interior region of a right ventricle of the heart. The replacement valve is configured to separate the first chamber from the second chamber, and has leaflets for providing flow in only one direction. The one or more inlets connect the first chamber with a first portion of cardiovascular anatomy, and the one or more outlets connect the second chamber with a second portion of cardiovascular anatomy.

The invention provides a pulmonary arterial hypertension detection method fusing image features and tricuspid regurgitation velocity, which is used for creating a set of dual-model fusion architecture when pulmonary arterial hypertension detection is carried out by combining computed tomography images, B ultrasound tricuspid regurgitation velocity and neural network technologies. A series of optimal configuration schemes are continuously given from details, so that an efficient and high-precision pulmonary arterial hypertension detection effect can be realized, the workload and working errors required by related medical personnel can be effectively reduced in practical application, the labor cost is remarkably reduced, high-quality data support can be provided, and the accuracy of pulmonary arterial hypertension detection is improved. Diagnosis and treatment of pulmonary arterial hypertension can be better promoted, and good application prospects are achieved.

A fixation device for securing together leaflets of a heart valve is provided. The fixation device may comprise two plates that are disposed on either side of the tricuspid valve. The plates may be secured to one another by a locking clip, thereby securing the valve leaflets between the plates.

To relate to devices and methods for treating tricuspid insufficiency.SOLUTION: A tricuspid insufficiency treatment device includes a tubular member configured for implantation within a vena cava of a patient, where the tubular member is formed with a sidewall. The device also includes at least two valves arranged circumferentially along the sidewall, where each valve comprises an opening formed in the sidewall, and a blocking member arranged to block and unblock the opening. The blocking member comprises a flap or cover pivotally attached at or proximate a portion of the opening and arranged to block and unblock the opening during ventricular systole and ventricular diastole, respectively, such that the opening is unblocked in a direction opposite to the attachment of the flap or cover. The at least two valves are arranged along a first circumference at a first location between the ends of the tubular member.SELECTED DRAWING: Figure 4B

The prosthetic heart valve includes a self-expanding frame and a plurality of prosthetic leaflets positioned within the frame. A ventricular anchor extends from a downstream portion of the frame and is shaped to capture the native valve leaflets. Barbs are preferably provided along the outer surface of the frame to enhance fixation. The self-expanding frame may include an inner frame for supporting the prosthetic leaflets and an outer frame for sealing against the tissue of the native heart valve. The inner and outer frames may be attached via a flexible intermediate component, which may allow the inner frame to move relative to the outer frame. The outer frame may be more flexible than the inner frame, and may include axial recesses for receiving the ventricular anchors, which may reduce the profile after implantation. The prosthetic heart valve is preferably sized to replace a native tricuspid valve.

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 provides a tricuspid valve clip operation simulator which comprises a bottom plate, and a first side of the bottom plate is provided with a first storage groove and a second storage groove; the first module is provided with a tricuspid valve simulation part, and the first module is arranged on the bottom plate in a mode that the first module can be switched between an unfolded state and a folded state; the second module is provided with a lower cavity tube used for simulating the inferior vena cava, and the second module is arranged on the bottom plate in the mode that the second module can be switched between the unfolded state and the folded state; when the first module is in an unfolded state, the tricuspid valve simulation part protrudes out of the bottom plate, and the tricuspid valve simulation part and the bottom plate form an analogue simulation position; when the second module is in an unfolded state, the lower cavity tube protrudes out of the bottom plate to form a surgical instrument access path; when the first module is in the folded state, the first module is integrally contained in the first containing groove, and when the second module is in the folded state, the second module is integrally contained in the second containing groove.

The utility model discloses a tricuspid valve implanting device of an open-loop structure. The tricuspid valve implanting device comprises a valve supporting ring and a flexible valve leaflet. The valve supporting ring is of an open ring structure and is provided with a head end and a tail end, and the tail end and the head end are connected to form a ring shape. One end of each flexible valve leaflet is connected with the valve supporting ring, the other end of each flexible valve leaflet is a free edge, a gap is formed between the free edges of the adjacent flexible valve leaflets, and the free edges and the fixed edges of the flexible valve leaflets are concave; the open-loop structure of the valve supporting ring is located between a set of adjacent flexible valve leaflets, and semi-annular avoiding openings are formed in the sides, close to the open-loop structure, of the free edges of the flexible valve leaflets on the two sides of the open-loop structure. The valve supporting ring is of the open-loop structure, the receding opening is formed in the portion, on the open-loop structure side, of the flexible valve leaflet, and the pace-making wire can be led in and fixed to the receding opening of the flexible valve leaflet through the open-loop structure, so that friction between the pace-making wire and the flexible valve leaflet is avoided, damage to the flexible valve leaflet is greatly reduced, and the service life of the flexible valve leaflet is prolonged. Therefore, tricuspid valve regurgitation is reduced.

A surgical annulus, a mechanical valve, and a surgical biovalve are disclosed. The three cardiac surgical valve instruments preferably adopt a high valve ring or short valve angle design. By means of the high-valve-ring surgical valve ring, left ventricular outflow tract obstruction can be avoided during a mitral valve intervention operation in the future. A mechanical valve and a surgical bioprosthetic valve move up a leaflet fixing structure and leaflets through a high annulus or short valve angle design to retain leaflets and subvalvular structures as much as possible in future mitral and tricuspid valve operations to facilitate post-operative heart function improvement.

Devices and methods for replacing a malformed or defective heart are provided. The device may include a flexible hollow structure sized to deploy within the right side of the human heart. The hollow structure preferably includes an inlet, an outlet, and a one-way prosthetic valve. The hollow structure allows blood to pass therethrough and effectively replaces the function of the right side of the heart. The hollow structure is preferably flexible to allow the heart to naturally beat after deployment in the body. The device is particularly suited for the treatment of a tricuspid congenital malformation, known as Ebstein's malformation (Ebstein's malformation).

The utility model relates to the technical field of medical instruments, in particular to a portable in-vitro simulation demonstration device which comprises a supporting device (2), a heart model (3) and a blood vessel model (4), and the heart model (3) is detachably fixed on a supporting plate (21) of the supporting device (2). The in-vitro simulation demonstration device is used for in-vitro simulation demonstration of medical instruments for interventional therapy of tricuspid regurgitation, is simple and convenient, and can more intuitively realize simulation demonstration operation of a heart structure.

The invention relates to the technical field of myocardial biopsy, in particular to a myocardial biopsy sampling device, system and method based on a CSP delivery sheath, and the device comprises a pair of myocardial biopsy forceps and the CSP delivery sheath which is used for guiding the myocardial biopsy forceps to move to the inner wall of the myocardial and is in vertical contact with the inner wall of the myocardial; placing the CSP delivery sheath into the body of the patient by taking the axillary vein as a placing path until the extending end of the CSP delivery sheath is vertically positioned to a target biopsy area of the ventricular septum; the surface of the extending end of the CSP delivery sheath is provided with a buffering assembly used for buffering the pressure generated when the CSP delivery sheath makes contact with the myocardial inner wall. Through the directional guiding effect of the CSP delivery sheath, the myocardial biopsy forceps and the inner wall of the myocardial form accurate vertical contact, the success rate of deep myocardial sampling is increased, and damage to the myocardial is reduced by reducing the number of times that an instrument penetrates through the tricuspid valve.

The utility model discloses a transcatheter pulmonary valve replacement simulation simulator, which comprises a liquid storage tank, a liquid outlet, a liquid inlet, a liquid outlet and a liquid outlet, the side wall of the liquid storage tank is provided with a mounting port, the mounting 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 the cardiovascular structure of a human body, and the model assembly comprises a pulmonary artery simulation tube, a heart simulation body and a lower cavity approach tube which are connected in sequence; wherein the heart simulation body is provided with a right atrium, a right ventricle and a tricuspid valve simulation body located between the right atrium and the right ventricle, the pulmonary artery simulation tube is communicated with the right ventricle, a first end of the inferior lumen approach tube is communicated with the right atrium, a second end of the inferior lumen approach tube is communicated with the right ventricle, and a third end of the inferior lumen approach tube is communicated with the right ventricle. The second end of the lower cavity inlet pipe corresponds to the cable gland in position.

This disclosure relates to transcatheter delivery systems, cardiac therapeutic devices (e.g., implants), and related methods for deploying the cardiac therapeutic devices to the heart. For example, some embodiments described herein can provide improved transcatheter delivery in an efficient, repeatable, and effective manner for structural heart intervention devices at the tricuspid valve and the mitral valve.