77 results about "Ascending aorta" patented technology

A prosthesis assembly includes a stent frame that is expandable and configured for being positioned in the ascending aorta, and a receiving socket positioned within a proximal end of the prosthesis assembly. The receiving socket defines a recess for allowing flowthrough of blood into the stent frame. The receiving socket is further configured for selectively receiving a heart valve assembly for replacing a native heart of a patient or maintaining a mode of operation where the socket is empty and blood flows through the socket into the stent frame.

The utility model provides an integrated stent-type artificial blood vessel which comprises an artificial blood vessel part comprising an artificial blood vessel main branch used for being arranged corresponding to an ascending aorta of a human body; the covered stent comprises a covered stent trunk and a left subclavian artery branch arranged beside the covered stent trunk and communicated with the covered stent trunk; the bendable connecting tube section is arranged between the artificial blood vessel part and the covered stent, the bendable connecting tube section comprises a main tube section and a side short tubular joint which is arranged on the side of the main tube section and communicated with the main tube section, and in the main blood flow direction of the artificial blood vessel, the near end of the main tube section is connected with the main branch of the artificial blood vessel; the far end of the main pipe section is connected with the near end of the artificial blood vessel main branch, and the axial height of the side short pipe-shaped connector is smaller than that of the left subclavian artery branch. The number of branch arteries needing to be dissociated in an operation is reduced, then dissociation anastomosis time is saved, circulation stopping time is shortened, protection on brain tissue is enhanced, and postoperative rehabilitation of a patient is facilitated.

An integrated stent-type artificial blood vessel, comprising: an artificial blood vessel portion (1), wherein the artificial blood vessel portion (1) comprises a main artificial blood vessel trunk (11), and the main artificial blood vessel trunk (11) is configured to be arranged corresponding to an ascending aorta of a human body; a covered stent (2), wherein the covered stent (2) comprises a main covered stent trunk (21) and a left subclavian artery branch trunk (22) provided on the side of and in communication with the main covered stent trunk (21); and a bendable connecting tube segment (3), provided between the artificial blood vessel portion (1) and the covered stent (2), wherein the bendable connecting tube segment (3) comprises a main tube segment (31) and a short side tubular connector (32) provided beside and in communication with the main tube segment (31). In a primary blood flow direction of the artificial blood vessel, the proximal end of the main tube segment (31) is connected to the main artificial blood vessel trunk (11), the distal end of the main tube segment (31) is connected to the proximal end of the main covered stent trunk (21), and the short side tubular connector (32) is connected to a short covered tubular stent (23).

The invention provides a cannula capable of effectively and smoothly conveying blood from the ascending aorta while reducing the diameter of the cannula. And the front end part of the cannula is retained in the ascending aorta and is used for smoothly conveying blood supplied by the in-vitro artificial membrane lung from the ascending aorta. The cannula comprises a forward blood backflow part (2) and a blood delivery tube (4), wherein the forward blood backflow part (2) is arranged at the front end of the blood delivery tube (4). A guide wire tube (5) which longitudinally extends from a base end part to a front end part is arranged at a near-center position of the axial length in the smooth blood feeding sleeve (1). The blood delivery tube (4) is a catheter arranged on the base end side and used for being connected with the in-vitro artificial membrane lung. The forward blood return unit (2) reverses blood from a reverse direction to a forward direction and guides the blood to the base end side, and is provided with a first blood return tube (6) provided on the base end side and a second blood return tube (7) provided on the tip side. The second blood return tube (7) has side holes (7a, 7b), and a part of an approximately hemispherical bag body (8) is adhered to the inner portion of the tip of the second blood return tube (7).

The invention discloses an aorta valved conduit with a coronary artery bridging vessel, comprising: an ascending aorta prosthesis comprising an ascending aorta stent; the valve prosthesis comprises a valve support and a valve blade, the valve support is coated with a valve covering film, and a bridging port used for bridging the coronary artery bridging blood vessel prosthesis or the coronary artery bridging blood vessel prosthesis communicated with the interior of the valve prosthesis is arranged on the valve covering film; the guide stent comprises at least one group of connecting rib units, the connecting rib units are connected with the ascending aorta stent and are arranged along the longitudinal direction of the ascending aorta stent, and one end of each connecting rib unit is connected with the valve stent so as to restrain the bending direction of the ascending aorta stent; the ascending aorta stent can only be bent along the plane where the connecting rib units and the central axis of the ascending aorta stent are located. The covering film is arranged outside the valve prosthesis in a covering mode, it is guaranteed that blood in the valve prosthesis cannot leak, and the coronary artery bridging blood vessel prosthesis is connected to the valve prosthesis so that the interior of the valve pipeline can be communicated with coronary artery blood flow.

The invention discloses an intrusive aorta valved conduit, comprising: an ascending aorta prosthesis comprising an ascending aorta stent, and an ascending aorta covering film covering the ascending aorta stent, so that the ascending aorta prosthesis can be adapted to the inner wall of the ascending aorta and form a sealing fit with the inner wall of the ascending aorta; the valve prosthesis comprises a valve support and a valve blade. Comprising at least one group of connecting rib units, the connecting rib units are connected with the ascending aorta stent and arranged in the longitudinal direction of the ascending aorta stent, and one ends of the connecting rib units are connected with the valve stent to restrain the bending direction of the ascending aorta stent; the ascending aorta stent can only be bent along the plane where the connecting rib units and the central axis of the ascending aorta stent are located. Through the arrangement of the connecting ribs, the angle of the valved pipeline in the input process can be controlled, so that the bending direction of the valved pipeline in the in-vivo conveying process is accurately controlled, the implantation angle of the instrument is convenient to adjust and control, the instrument can be accurately aligned with the boundary edge of a native valve leaflet, and the implantation precision of the valved pipeline is guaranteed.

Apparatus and methods are described including implanting an aortic pressure-loss-reduction device in a subject's ascending aorta. A frame of the device includes a first set of sinusoidal struts disposed between a downstream end of an upstream anchor and an upstream end of the intermediate portion, the sinusoidal struts being shaped to form a folded portion between the downstream end of the upstream anchor and the upstream end of the intermediate portion. The frame includes a second set of sinusoidal struts disposed between an upstream end of a downstream anchor and a downstream end of the intermediate portion, the sinusoidal struts being shaped to form a folded portion between the upstream end of the downstream anchor and the downstream end of the intermediate portion. Other applications are also described.

The present invention provides an individualized thoracic aortic stent system. The individualized thoracic aortic stent system includes an aortic arch stent and an ascending aortic stent. The anchoring area of the aortic arch stent is spliced and implanted into the ascending aortic stent, and the anchoring area of the ascending aortic stent is used as the anchoring area of the system. A first branch hole is pre-opened in the area of the aortic arch stent for connecting a branch stent, and the opening areas of the second branch hole and the third branch hole are locked with the first branch hole as a reference point, and the second branch hole and the third branch hole are opened in the opening areas. A movable, deformable or special-shaped framework structure is arranged in the opening area of the aortic arch stent. Through the splicing between the aortic arch stent and the ascending aortic stent, the anchoring area of the aortic arch stent is arranged in the ascending aortic arch stent, and the anchoring area of the ascending aortic stent is used as the anchoring area of the system, so that the anchoring area is moved forward to avoid the vascular branch fork, enabling the system to adapt to individuals who were previously unsuitable for anchoring.

Disclosed is a valve balloon suction catheter, comprising a tip, a balloon, a catheter, and a handle base in sequence from a distal end to a proximal end, the catheter being provided with a fluid passage lumen. The balloon consists of at least four balloon bodies, which are distributed circumferentially around the catheter to form a circular configuration, so as to create a blood flow channel in the center of the balloon, the blood flow channel being arranged in the axial direction of the balloon. A micro axial flow pump is provided in the blood flow channel and is arranged on the catheter, and a guidewire conduit penetrating through the micro axial flow pump is provided in the micro axial flow pump. A distal end of the guidewire conduit passes through the blood flow channel and is fixedly connected to the tip, and a proximal end of the guidewire conduit penetrates through the handle base. A guidewire lumen is provided in the guidewire conduit. The micro axial flow pump is connected to an external impeller drive interface arranged at a proximal end of the handle base. Compared with the prior art, the combination of balloon dilatation and mechanical circulatory assistance establishes a drainage pathway from the left ventricle to the ascending aorta, enabling cardiac blood circulation and improving the safety of the procedure.

The subject of the invention is a delivery system for delivering a self-expanding endoluminal prosthesis to the patient's ascending aorta and aortic valve, the system comprising: - an inner tube (33), extending along a longitudinal Y axis of the delivery system (100), from an atraumatic distal tip (27) to a handle (37); - a metal tube (32), slide-fitted on the inner tube (33), and extending from the internal space of the distal tip (27) to a handle (37); - an outer tubular catheter shaft (22) slide-fitted on the metal tube (32), the catheter shaft (22) is brought out from the handle (37) and is terminated by a capsule (20), containing inside the radially compressed on the metal tube (32), self-expanding endoluminal prosthesis (1) having defined construction and covered at least partially by a coating (16), - the capsule (20) has closed position when is closed by the tip (27) and has open position when the capsule (20) and the tip (27) are displaced relative to each other; wherein the distal part of the metal tube (32) is equipped with receiving means (41, 42) on which the distal locking means (7) of prosthesis (1) are removably embedded and blocked in the inner space of the tip (27) and the delivery system (100) comprises also removable holding means (45, 45') retaining the proximal locking means (9) of the prosthesis (1), so that when the capsule (20) is in its fully open position, the prosthesis (1) is still maintained partially compressed, holding its crimping length.

Catheter apparatuses and methods are provided for repairing heart valves, particularly mitral valves. The method includes providing a catheter having an elongate, flexible body, with a proximal end and a distal end. The distal end can be transluminally advanced from the left atrium through the mitral valve. A distal anchor zone or portion coupled with the proximal end can extend and along the left ventricular outflow tract into the ascending aorta. A valve repair device is deployed to permanently connect leaflets at a mid-section of a mitral valve while permitting medial and lateral portions of the natural leaflets to open and close. The catheter apparatuses may be positionable using a steering device. The valve repair device detachably connects the distal and proximal ends of the catheter. The valve repair device can be detached using low profile devices actuatable from the proximal or distal ends, e.g., at a venous or arterial access site.

A catheter device is disclosed comprising; an elongate sheath (503) with a lumen and a distal end for positioning at a heart valve (6), an embolic protection device (200) for temporarily positioning in the aortic arch for deflection of embolic debris from the ascending aorta to the descending aorta, said embolic protection device is connectable to a transluminal delivery unit (130) extending proximally from a connection point (131), and having: a frame with a periphery, a blood permeable unit within said periphery for preventing embolic particles from passing therethrough with a blood flow downstream an aortic valve into side vessels of said aortic arch to the brain of a patient, and at least one tissue apposition sustaining unit (300, 350) extending from said catheter, into said aortic arch, and being attached to said embolic protection device at a sustaining point (502), for application of a stabilization force offset to said connection point at said embolic protection device, such as at said periphery, and for providing said stabilization force towards an inner wall of said aortic arch, away from said heart, and in a direction perpendicular to a longitudinal extension of said periphery, when said catheter device is positioned in said aortic arch, such that tissue apposition of said periphery to an inner wall of said aortic arch is supported by said force for improving stability and peripheral sealing. In addition related methods are disclosed.

The application discloses a multi-delivery-site asymmetric positioning cross-valve catheter, and particularly relates to the technical field of cross-valve catheters, which comprises an expansion piece, a guide sheath and movable pieces. The expansion piece is provided with through grooves penetrating through the peripheral wall, and the number of the through grooves is at least one; accordingly, the through grooves divide the expansion piece into at least two sub-pieces; one end of each of the sub-pieces is connected through a closed ring-shaped part, and the other end of each of the sub-pieces is fixed with a single movable piece; the number of the movable pieces is matched with the number of the sub-pieces; each of the sub-pieces is provided with an expansion part, and the expansion part comprises at least four mechanical sub-pieces; the head of the guide sheath is arranged in the hollow interior of the closed ring-shaped part, and the middle part of the guide sheath is provided with a hole through which a cross-valve guide wire passes. The cross-valve catheter pushes the tail pipe of the sub-piece, so that the mechanical sub-pieces have different expansion sizes, the outer sides of the mechanical sub-pieces are attached to the ascending aorta, the coaxiality of the distal end opening of the catheter and the expected cross-valve point is improved, and the catheter is stabilized.

Described herein are pumps that linearly reciprocate to assist with circulating blood within the body of a patient. Red blood cell damage may be avoided or minimized by such linear pump movement. The linearly reciprocating movement may also generate a pulsatile pumping cycle that mimics the natural pumping cycle of the heart. The pumps may be configured to reside at various body locations. For example, the pumps may be situated within the right ventricle, the left ventricle, the ascending aorta, the descending aorta, the thoracic aorta, or the abdominal aorta. In some instances, the pump may be deployed within the venous circulation. In other instances, the pump may reside outside the patient.

The application provides an interventional ventricular auxiliary oxygen generation device, a blood flow channel crosses an aortic valve into a left ventricle from an ascending aorta, a blood inlet of the blood flow channel is located in the left ventricle, a blood outlet is located in the ascending aorta, a first conveying pipe and a second conveying pipe convey hydrogen peroxide and catalase into the left ventricle to generate oxygen and water through reaction, and a pumping unit pumps oxygen-rich blood in the left ventricle to the ascending aorta. The oxygen generation function is added to the ventricular auxiliary device, the oxygen-rich blood in the ventricle is pumped to the ascending aorta through the ventricular auxiliary device, which directly improves the myocardial hypoxia condition and helps the heart recover, and on the other hand, the oxygen-rich blood is pumped into the ascending aorta and directly participates in the systemic circulation, thereby directly and quickly improving the oxygen supply condition of the systemic circulation.

The present application relates to the field of assist devices and provides a left ventricular flexible assist device, wherein a catheter support of the device is arranged in a reflux catheter; a first opening is arranged at the top of the catheter support, a second opening is arranged at the bottom of the catheter support, and the side of the catheter support is a hollow structure; a trileaflet valve is fixedly connected to the inner side of the catheter support; a third opening is arranged at the top of the suction catheter, a fourth opening is arranged at the bottom of the reflux catheter, a fifth opening is arranged at the top of the reflux catheter, the third opening passes through the fourth opening and the second opening, and is fixedly connected to the bottom of the trileaflet valve; the support valve is arranged between the catheter support and the suction catheter; a blood discharge hole is arranged on the side of the reflux catheter, and a suction hole is arranged on the side of the suction catheter. The device provided by the present application can aspirate blood from the left ventricle during systole while avoiding the accidental aspiration of blood from the ascending aorta out of the body, and discharge blood into the ascending aorta during diastole while avoiding the accidental discharge of blood into the left ventricle.

The present invention provides a valve stent and a usage method thereof for bicuspid aortic valve stenosis, comprising an ascending aorta contact area, a connecting body, a valve support area and a valve prosthesis suture part; the ascending aorta contact area is in an annular shape, a honeycomb-like structure formed by arranging and connecting a plurality of regular hexagons; the valve support area is in an elliptical annular shape, a grid structure formed by arranging and connecting a plurality of rhombuses. The present invention enhances the radial stiffness of the stent, thereby improving its radial support capacity; the valve support area is designed as an elliptical ring structure, and when implanting the artificial heart valve stent, the long-axis implantation angle of the valve stent is kept perpendicular to the long axis of the valve annulus, and by using the mutual coupling effect between the two, the cross-sectional shape of the expanded valve stent is finally circular, which improves the problem of poor expansion during the implantation of the valve stent and the elliptization after the valve stent is implanted, thereby reducing the occurrence of paravalvular leakage, with uniform stress and extended service life.

The present invention relates to the technical field of anastomosis devices, and particularly to a minimally invasive proximal anastomosis device for bypass grafting. In view of the problems that the anastomosis site is far from the surgical incision, the operation is difficult, the error tolerance rate is low, resulting in a high risk of coronary ischemia, and for patients with ascending aorta lesions, the risks of aortic rupture, dissection and stroke will also increase, the following technical solutions are proposed: It includes a handle, one end of the handle is fixedly connected with a fixed cylinder, and sliding grooves are formed on both sides of the fixed cylinder; a first sleeve arranged in the fixed cylinder, a second sleeve is slidably connected to the outside of the first sleeve, a third sleeve is slidably connected to the outside of the second sleeve, and the third sleeve, the second sleeve and the first sleeve are all arranged in a stepped shape. The operation of the present invention is simple. With the collaborative design of the handle, the sleeve and the driving plate, the operation difficulty of the surgery can be reduced, the efficiency can be improved, and the anastomosis is accurate and reliable.

The invention provides a medical implant, a medical system and a use method thereof, the medical implant comprises a first covered stent and a barb assembly, the first covered stent comprises a first stent body, a second stent body and a first positioning piece which are sequentially arranged in the direction from the near end to the far end; the first covered stent further comprises a first covering film, and the first covering film covers the first stent body, the second stent body and the near-end part of the first positioning piece; the first covering film is further provided with a first preset position and a second preset position, the first preset position and the second preset position are located between the first stent body and the second stent body, and the first preset position and the second preset position are staggered; the first preset position is used for forming a first window, the second preset position is used for arranging a barb assembly, and the barb assembly comprises barbs. The medical implant is applied to treatment of DeBakey II-type aortic dissection with a tearing opening appearing between a coronary artery opening and the junction of a sinus canal and / or a dissection section extending towards the coronary artery opening, and the first support body is used for providing radial force for the ascending aorta wall for anchoring; in addition, the barbs penetrate into the ascending aorta wall to provide anchoring force and resist blood flow impact, so that the first stent body is allowed to provide relatively small radial force, stimulation to the ascending aorta wall is reduced, and the occurrence rate of stent-derived new crevasses caused by the stimulation of the radial force is reduced.

The present disclosure generally relates to prosthetic implants, prosthetic implant systems, and their methods of use, for example, for treating a dissection. The prosthetic implants contemplated herein comprise an expandable arch support structure comprising one or more expandable branches configured to be placed within one or more vessels. Certain aspects of the disclosure relate to methods for treating a dissection, e.g., an aortic dissection, using said prosthetic implants and implant systems. The methods comprise advancing one or more guidewires into an ascending aorta, a descending aorta, and / or one or more one or more vessels of an aortic root or aortic arch. The methods further comprise exposing one or more components of the expandable arch support structure from a sheath. In some cases, the exposed component is an expandable branch that is advanced into the one or more vessels of the aortic root or aortic arch, thus anchoring the implant to the native aorta.

The present invention discloses a bare crown stent release assembly for an ascending aortic covered stent delivery system, belonging to the technical field of minimally invasive surgery, and is designed to solve problems such as the difficulty for existing stents to accurately reach the set position. The bare crown stent release assembly for the ascending aortic covered stent delivery system of the present invention includes a proximal bare crown stent, a balloon dilator, and a balloon dilator release knob. The balloon dilator and the balloon dilator release knob are respectively arranged on the ascending aortic covered stent delivery system. The balloon dilator is located inside the proximal bare crown stent, and the balloon dilator release knob is configured to control the dilation and contraction of the balloon dilator; the proximal bare crown stent is configured to expand along with the dilation of the balloon dilator. The bare crown stent release assembly for the ascending aortic covered stent delivery system of the present invention can make the proximal bare crown stent accurately fit with the inner wall of the target diseased blood vessel, and solves the problem that minimally invasive surgery is not suitable for ascending aortic dissection.

Apparatus and methods are described including an aortic pressure-loss-reduction device (20) configured to be delivered to and implanted inside an ascending aorta of a subject using a delivery device. The aortic pressure-loss-reduction device (20) includes a frame and a layer of material (54) coupled to at least a portion of the frame, the material layer configured to impede blood flow therethrough. A retrieval element (240), configured to facilitate retrieval of the aortic pressure-loss-reduction device (20) from the ascending aorta back into the delivery device, is coupled to an outside of the aortic pressure-loss-reduction device (20) and is configured to be disposed externally to the aortic pressure-loss-reduction device (20).

An implantable medical device including a frame operable to transition between a delivery configuration and a deployed configuration, a tubular member supported by the frame and defining a side wall, wherein the tubular member defines a lumen extending therethrough and at least one fenestration defined by the side wall, and a valve supported by the frame and positioned upstream from the at least one fenestration when implanted in an ascending aorta.

The invention relates to a novel aortic stent and a manufacturing method thereof. The novel aorta stent comprises a near-end stent section, a far-end stent section, an arch stent section, a covering film and a keel line, the near-end stent section is used for being implanted into a descending aorta, the far-end stent section is used for being implanted into an ascending aorta, and the arch stent section is used for being implanted into an aortic arch. The arch support section is located between the near-end support section and the far-end support section and connected with the near-end support section and the far-end support section. The covering film covers the near-end stent section and the far-end stent section. Wherein the near-end stent section, the arch stent section and the far-end stent section jointly define a supporting cavity, the covering film has foldability, and the keel line has a pre-bent shape. According to the novel aortic stent, the whole stent can achieve the bending effect in the keel line bending direction, so that the elastic straightening force of the novel aortic stent can be reduced, the flexibility of the novel aortic stent is improved, and complications caused by poor wall attachment are reduced.

This invention relates to a method and apparatus for quantitatively assessing left ventricular outflow tract obstruction and aortic stenosis. The method includes acquiring the outflow tract pressure gradient and cardiac output; determining the relationship between cardiac output and outflow tract pressure gradient using Bernoulli's equation; calculating the cardiac obstruction coefficient based on the equation; the cardiac obstruction coefficient includes the cardiac obstruction coefficient from the left ventricular cavity to the outflow tract segment and the cardiac obstruction coefficient from the outflow tract to the ascending aorta; and assessing the patient's obstruction status based on the cardiac obstruction coefficient. The cardiac obstruction coefficient calculated by this invention is mainly determined by the morphology of the patient's blood flow cavity and is not affected by cardiac output, thus providing a more accurate description of the patient's obstruction status. This helps physicians make more accurate clinical judgments.

The utility model relates to a three-branch stent artificial blood vessel, which belongs to the field of artificial blood vessels and comprises a main artificial blood vessel and a main covered stent sewn and fixed in the main artificial blood vessel. The main artificial blood vessel is provided with incisions corresponding to positions, thicknesses and sizes of an unknown artery, a left common carotid artery and a left subclavian artery, and a branch artificial blood vessel I, a branch artificial blood vessel II and a branch artificial blood vessel III are respectively and correspondingly sewn and fixed on the incisions; an integrated composite artificial blood vessel assembled in an operation is directly placed from an incision position, an interventional anchoring area for safety of the blood vessel is manufactured through surgical operation, the advantage of minimally invasive interventional therapy is exerted, and the difficulty of interventional therapy in treatment of ascending aorta diseases is solved through the method that a covered stent is placed into the artificial blood vessel. And a large number of tedious steps of anastomosis and hemostasis in an operation are avoided. And the effects of shortening the operation time and replacing the total aortic arch are achieved through quick and simple operation.

Provided is a cannula capable of safely and effectively supplying blood in an antegrade manner from the ascending aorta while having a smaller diameter. The cannula comprises an antegrade blood return tube 1 and a blood supply tube 4. The antegrade blood return tube 1 has a distal end part having a guide wire opening that extends in the longitudinal direction substantially along the central axis of the distal end part. A guide wire tube 5 is placed through the opening. A guide wire 50 is inserted through the guide wire tube 5. The antegrade blood return tube 1 comprises a distal tapered portion on the distal side and a body portion on the proximal side, and the distal tapered portion and the body portion are integrally molded. The distal tapered portion comprises a tip part and fins, and the body portion comprises fins and a tubular part. The proximal end of the tip part, the fins, and the distal end of the tubular part forms a louver 2. The louver 2 is supported by a total of four beams extending from the tip part to the tubular part in the longitudinal direction of the antegrade blood return tube 1.

The present disclosure generally relates to prosthetic implants, prosthetic implant systems, and their methods of use, for example, for treating a dissection. The prosthetic implants contemplated herein comprise an expandable arch support structure comprising one or more expandable branches configured to be placed within one or more vessels. Certain aspects of the disclosure relate to methods for treating a dissection, e.g., an aortic dissection, using said prosthetic implants and implant systems. The methods comprise advancing one or more guidewires into an ascending aorta, a descending aorta, and / or one or more one or more vessels of an aortic root or aortic arch. The methods further comprise exposing one or more components of the expandable arch support structure from a sheath. In some cases, the exposed component is an expandable branch that is advanced into the one or more vessels of the aortic root or aortic arch, thus anchoring the implant to the native aorta.

The blood vessel broken end connecting device is provided with a multi-layer tubular structure, and the multi-layer tubular structure comprises an inner-layer artificial blood vessel section, a middle artificial blood vessel section and an outer-layer artificial blood vessel section which are coaxial and sequentially arranged from inside to outside. The far end of the middle artificial blood vessel section is connected with the far end of the outer-layer artificial blood vessel section and the part, close to the far end of the inner-layer artificial blood vessel section, of the inner-layer artificial blood vessel section, the near end of each tube section in the multi-layer tubular structure is a free end, and the near end part, close to the inner-layer artificial blood vessel section, of the inner-layer artificial blood vessel section forms the near end part of the inner-layer artificial blood vessel section; the inner support ring is arranged on the peripheral side of the near end part of the inner-layer artificial blood vessel section, and in a natural expansion state, the length of the middle artificial blood vessel section is smaller than that of the inner-layer artificial blood vessel section and smaller than that of the outer-layer artificial blood vessel section. According to the blood vessel broken end connecting device provided by the embodiment of the invention, the suture time and the suture difficulty in the aorta root reconstruction process can be well shortened, and meanwhile, the problem of blood leakage at the ascending aorta root reconstruction position is avoided.

The utility model relates to a magnetic anastomosis aortic arch which comprises four artificial blood vessels and a plurality of second magnetic rings, the anastomotic stoma of each artificial blood vessel is provided with a first magnetic ring, each second magnetic ring is arranged at the broken end of the corresponding human blood vessel, and the first magnetic ring and the second magnetic ring attract each other through the magnetic force of the first magnetic ring and the magnetic force of the second magnetic ring. Connection and anastomosis of the artificial blood vessel and the human blood vessel are achieved. The four artificial blood vessels are an aorta blood vessel, a brachial trunk blood vessel, a left common carotid artery blood vessel and a left subclavian artery blood vessel, and one end of the brachial trunk blood vessel, one end of the left common carotid artery blood vessel and one end of the left subclavian artery blood vessel are sequentially connected on the aorta blood vessel in the direction from the ascending aorta to the descending aorta. And the other end of the brachial trunk blood vessel, the other end of the left subclavian artery blood vessel and the two ends of the aorta blood vessel are anastomotic stomas of the artificial blood vessel. The arcus aortae operation can be simplified, the operation time is shortened, the operation difficulty is reduced, operation wounds are reduced, and the operation effect and safety are improved.