21 results about "Thoracotomy" patented technology

The limiting expandable aortic valve pipeline comprises an aortic valve preliminary pipeline attached with a collagen fiber coating, and the aortic valve preliminary pipeline comprises a proximal pipeline, a valve connecting pipe and a telecentric pipeline. The invention also discloses a preparation method thereof. The limiting expandable aortic valve pipeline provided by the invention is used for replacing an aortic artificial blood vessel and a Bentall type operation of an aortic valve, and after the artificial bioprosthetic valve declines, the limiting expandable aortic valve pipeline provided by the invention provides a condition for embedding the artificial bioprosthetic valve with the same size as an original valve in an interventional manner, so that the limiting expandable aortic valve pipeline can be used for replacing the Bentall type operation of the aortic valve and the artificial bioprosthetic valve. In this way, after the bioprosthetic valve declines, the valve with the same size as the original valve can be placed in an interventional mode, and the patient does not need to open the chest to replace the bioprosthetic valve with the same size.

Valve holders and introducers for delivering a prosthetic heart valve to an implant site are in various embodiments configured to facilitate insertion of prosthetic valves through small incisions or access sites on a patient's body. The valve holders can also be configured to reduce or eliminate the occurrence of suture looping or other damage to the prosthetic valve during implantation. A valve holder according to embodiments of the invention includes features that reduce or eliminate mistakes during implantation of the prosthetic valves, such as a removable activator dial and a removable handle that prevent implantation of the valve prior to proper deployment or adjustment of the holder. An introducer is provided which can facilitate passing of a prosthetic valve between adjacent ribs of a patient. Valve holders and introducers according to the various embodiments can be used in minimally invasive procedures, such as thoracotomy procedures.

A method for performing a robotic-assisted orthotopic heart transplant includes forming a working port subareolarly by a mini-thoracotomy at a working intercostal space, forming additional ports for robotic arms, and arranging robotic arms through the ports. A first robotic arm with first forceps extends through a second port lateral to a mid-clavicular line, while second and third robotic arms containing an imaging device and second forceps operate through the working port. A fourth robotic arm with scissors or needle holder extends through a third port proximal to an anterior axillary line. The method includes cannulating for cardiopulmonary bypass, opening the pericardium, cross-clamping the aorta, removing the native heart, and performing sequential anastomoses of the donor heart including the left atrium, pulmonary artery, aorta, inferior vena cava, and superior vena cava.

The invention discloses a chest opener for mice, and belongs to the technical field of experimental instruments. The chest opening device comprises two control arms which are rotationally connected, a control ring is arranged at the tail end of each control arm, and a locking assembly is arranged on the chest opening device and used for fixing the rotating angle. The front end of the control arm is connected with the poking assembly, the poking assembly comprises a main body block, a control rod and an L-shaped poking hook, the rotation angle of the poking hook is adjusted through the control button, and the angle of the poking hook is locked by rotating the locking button. A groove is formed in the main body block, and the rotation range of the shifting hook is limited within 30 degrees through the groove. Through the design of the L-shaped shifting hook with the adjustable angle, tissue resistance can be effectively reduced, different operation field requirements can be met, passive expansion of the thoracotomy range is avoided, operation wounds and complication risks are reduced, and the device is suitable for mouse experiment operation.

The utility model relates to the technical field of medical instruments, in particular to a chest strap visible after thoracotomy and capable of fixing a catheter, which comprises a chest strap, a magic tape is fixedly arranged on the side surface of one end of the chest strap, a sticking groove is arranged on the surface of the other section of the chest strap, a magic patch is arranged in the sticking groove, and an observation port is arranged on the surface of the chest strap. A drainage tube groove used for containing a flow guide tube is formed below the observation opening, and a fixing groove is formed in one side of the observation opening. By means of the observation opening formed in the surface of the pectoral girdle, medical staff can directly observe the states of a wound and a catheter under the condition that the pectoral girdle is not removed, nursing convenience and efficiency are improved, effective pressure of the pectoral girdle is guaranteed, bleeding and errhysis of a knife edge are observed in time, safety of a patient is improved, and the infection opportunity of the knife edge is reduced.

The application provides a thoracotomy device for thoracic surgery assistance, and belongs to the technical field of medical instruments. The device comprises a guide frame, an expansion plate and two groups of symmetrically distributed supporting rods. A guide groove is formed through the outer surface of the guide frame. A sliding block is slidably connected to the inner side of the guide groove. The outer surface of the sliding block is fixedly connected to the supporting rod. A traction assembly for placing the expansion plate is arranged on the outer side of the supporting rod. An expansion assembly is arranged on the inner side of the guide frame. The expansion assembly comprises a guide block slidably connected to the inner side of the guide frame. In the above scheme, the expansion assembly is arranged. The corresponding positions of the observation scale and the scale line can be used to intuitively measure the rib expansion distance. Therefore, the appropriate expansion distance can be adjusted according to the physical indications of the patient. The damage to the ribs during the thoracotomy and rib expansion process can be effectively reduced, and the operation safety and convenience are further improved.

The utility model discloses an adjustable thoracotomy device, which belongs to the technical field of operation thoracotomy and comprises a shell, a sliding cavity is arranged on the inner side of the shell, two screw rod sliding blocks are movably arranged on the inner side of the sliding cavity, a movable arm is movably arranged on one side of each screw rod sliding block, and a supporting flap is movably arranged at one end of each movable arm. Folding and storing devices are arranged on one sides of the two lead screw sliding blocks correspondingly and used for folding and storing the movable arms; the folding storage device comprises a hinge seat, the hinge seat is fixedly arranged on one side of the lead screw sliding block, a rotating block is movably arranged on the inner side of the hinge seat, and limiting holes are formed in the upper end and the lower end of the hinge seat correspondingly. A convenient replacement device capable of replacing the supporting petals is arranged at one end of the movable arm and used for assembling or replacing the supporting petals. According to the folding storage device, the occupied space of the appliance during storage can be reduced, storage is more convenient, the disposable supporting petals can be conveniently installed through the convenient replacement device, and the use safety is improved.

This utility model discloses a duckbill-shaped intraoperative suction device, comprising a suction head, a suction tube, and a negative pressure suction device connected in sequence. The suction head is a flat tubular structure with a thickness smaller than its length and width. One end of the suction head along its length is directly or indirectly connected to and communicates with the suction tube, while the other end of the suction head along its length is a closed end or has an end through hole. Multiple through suction holes are also distributed on the suction head. This duckbill-shaped intraoperative suction device replaces the traditional cylindrical suction head with a duckbill-shaped, flat tubular structure. The suction head has a thin and flat shape, making it better suited for patients undergoing reoperation, especially children. It can be inserted behind the sternum in a very small space and increases the area of ​​protection behind the sternum, helping to avoid damage to the heart and major blood vessels behind the sternum during a second thoracotomy.

The invention provides a respiratory tract secretion suction and discharge device used after thoracotomy, and belongs to the technical field of medical instruments. The respiratory tract secretion suction and discharge device after thoracotomy comprises a negative pressure suction and discharge device, a negative pressure pipe is fixedly connected to the negative pressure suction and discharge device, a suction and discharge pipe connector is connected to one end of the negative pressure pipe in an inserted mode, and a suction and discharge pipe is fixedly connected to the suction and discharge pipe connector; the backflow prevention unit is used for preventing the sucked respiratory tract secretions from flowing back to the body of the patient and puncturing the secretions with high concentration so as to be sucked out conveniently, and the backflow prevention unit is connected with the suction and discharge pipe. According to the scheme, the respiratory tract secretion suction and discharge device after thoracotomy is provided with the backflow prevention unit and the puncture head, so that the technical problems that secretion sucked out by a negative pressure suction and discharge device can flow back into the respiratory tract of a patient through a suction and discharge pipe, and meanwhile, a common suction and discharge device is poor in suction and discharge effect on high-concentration secretion in the respiratory tract of the patient are solved.

The invention discloses a special thoracotomy auxiliary device for thoracic surgery clinical operation, and relates to the technical field of medical instruments, the special thoracotomy auxiliary device comprises a bottom plate, the upper side of the bottom plate is fixedly connected with a supporting rod, the upper side of the bottom plate is provided with a mounting hole, the upper end of the supporting rod is fixedly connected with a fixing plate, and the front side of the fixing plate is provided with a distraction unit; a top cover is fixedly connected to the upper side of the fixing plate, the opening unit comprises a sliding groove, the sliding groove is formed in the front side of the fixing plate, two symmetrically-distributed sliding blocks are slidably connected to the inner side of the sliding groove, and moving plates are fixedly connected to the front sides of the two sliding blocks. According to the special thoracotomy auxiliary device for the clinical operation of the thoracic surgery department, by arranging the bottom plate, the fixing plate, the distraction plates, the first screw rod and the first inclined plate, the two distraction plates can be conveniently controlled to distraction the thoracic cavity of a patient, the side plates on the two sides are controlled to clamp the periphery of the thoracic cavity, the distraction friction force between the distraction plates and ribs is increased, and the situation that the distraction plates slide to affect the progress of the operation is avoided.

The invention provides an application of alpha-ketoglutaric acid in preparation of a medicine and food for preventing or relieving postoperative pain. On the basis that a plurality of risk factors such as chronic neuropathic pain and postoperative chronic pain influenced by intestinal bacteria are closely related to intestinal bacteria change, and the intestinal bacteria are easily influenced in the perioperative period, the peripheral blood metabolite capable of preventing and treating the postoperative pain is explored from'intestinal bacteria-peripheral blood metabolite-spinal axis', and the results show that (1) the postoperative chronic pain can be prevented by eliminating the intestinal bacteria, and the postoperative chronic pain can be prevented by eliminating the intestinal bacteria; peripheral blood alpha-ketoglutaric acid is increased; (2) alpha-ketoglutaric acid in peripheral blood can be reduced in thoracotomy; (3) the alpha-ketoglutaric acid is supplemented by oral administration, so that the postoperative chronic pain can be prevented, and the excitability of spinal dorsal horn neurons can be reduced; and (4) the pain relieving effect of morphine can be synergistically enhanced by oral administration of alpha-ketoglutaric acid. The alpha-ketoglutaric acid can be used for postoperative analgesia and prevention of postoperative chronic pain.

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.

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.

The utility model provides a heart connector, and relates to the field of heart and great vessel surgery. The heart connector comprises a first cavity, a connector main cavity and a second cavity which are detachably connected in sequence, and inner cavities of the first cavity, the connector main cavity and the second cavity are communicated. The isolating mechanism extends into an inner cavity of the connector main cavity and is used for isolating the inner cavity of the connector main cavity, the ultrasonic probe pipe is communicated with the inner cavity of the connector main cavity, and the second cavity is provided with an injector exhaust pipe communicated with the inner cavity of the second cavity. The connector further comprises a sheath core which is connected with the first cavity, the connector main cavity and the second cavity in a sliding mode, and a guide wire channel penetrating through the sheath core is formed in the sheath core. Through the arrangement, the ventricular catheter can be guided by the guide wire and punctured into the ventricle from the apex heart along with the sheath core, and subsequent medical instruments can enter the ventricle through an inner cavity channel of the main cavity of the connector, so that wounds caused by operation thoracotomy, cardiac arrest and extracorporeal circulation assistance to a patient are reduced.

[Problem] To provide a medical device with which it is possible to treat a stricture formed in a part of the blood vessels of the heart when performing thoracotomy in coronary artery bypass graft surgery, etc. [Solution] A medical device 1 has: a conduit 10, 20 that penetrates the wall of the coronary artery (V) and is inserted into the coronary artery; an expandable expansion part 70 that is provided at the distal end of the conduit; and an expansion means 40 that causes the expansion part to expand. A stricture formed in the coronary artery is expanded by the expansion of the expansion part.

The invention provides a rehabilitation pectoral girdle structure convenient to observe after thoracotomy, and relates to the field of thoracotomy, the rehabilitation pectoral girdle structure comprises a main ring shell, a plurality of side lugs are symmetrically arranged on the side wall of the main ring shell, penetrating belts are mounted and connected in the side lugs, one end of each penetrating belt is provided with a belt buckle, the main ring shell is provided with a matching ring shell, and the matching ring shell is provided with a fixing ring. A sealing cover is arranged on the matching ring shell, and a side seat is arranged on the side wall of the matching ring shell. Through the linkage of the main shaft, the gear and other components, in the process of opening the sealing cover to observe the wound, the disinfectant can be automatically extracted and uniformly sprayed around the wound, the automatic integrated operation of observation and disinfection is realized, and the operation steps of manual disinfection and the infection risk are reduced; by starting the small fan, external air is filtered by the filter screen insertion plate and is subjected to secondary sterilization by the ultraviolet sterilization lamp strip to form clean airflow which is blown to the wound, so that the surface dryness of the wound is accelerated, and the wound is ensured to be in a state suitable for recovery.

The invention discloses an aorta covered stent in-situ fenestration system, and relates to the technical field of medical instruments, the aorta covered stent in-situ fenestration system comprises a sheath tube assembly, a sheath core assembly and a puncture needle assembly, the sheath core assembly is installed on the sheath tube assembly, the puncture needle assembly is installed on the sheath core assembly, the sheath tube assembly comprises a sheath tube body, and the sheath core body is of a bendable structure; according to the aorta covered stent in-situ fenestration system, aorta branch fenestration is conducted to treat aortic arch lesions, the aortic arch and branch blood vessels can be reconstructed completely in a minimally invasive mode through the interventional technology, thoracotomy and extracorporeal circulation are not needed, the operation is simple, the operation is convenient, and the cost is low. Operation wounds are greatly reduced, complications caused by thoracotomy, extracorporeal circulation and circulation arrest are avoided, branch blood vessels are reconstructed through the windowing technology, blood vessel suture is avoided, and the risk of bleeding is reduced.

The invention discloses a construction method and application of a dog lung space-occupying lesion model. The invention provides a method for constructing a peripheral lung lesion model on the periphery of a dog lung by injecting a temperature-sensitive hydrogel mixture through a natural orifice by using a bronchoscope, which overcomes the technical problems of strong invasiveness, complex modeling, low success rate, uncontrollable or unstable focus image and the like in the prior art. And the low-invasive, rapid, visible and stable peripheral lung disease canine model is constructed. Compared with existing percutaneous puncture or thoracotomy modeling, the method has the advantages that surgical operation is not needed, the modeling speed is high, imaging is visible, the focus stability is high, the simulation degree of an animal model to human peripheral lung lesion is remarkably improved, and a high-quality experimental platform is provided for related disease mechanism research and new technical verification.

The invention belongs to the technical field of medical image analysis, and particularly discloses a central NSCLC thoracotomy exploration risk prediction method and system, and the method comprises the following steps: collecting clinical data of a sample and a chest CT image, carrying out the three-dimensional reconstruction of the CT image, selecting a key coronal layer, and calculating the tumor area and the blood vessel compression deformation degree; performing multi-factor regression risk analysis on the clinical data, the tumor area and the blood vessel compression deformation degree to determine independent risk factors; constructing a prediction model based on the independent risk factors; independent risk factors of a patient are collected and input into the prediction model, and a risk score is generated. By adopting the technical scheme, the thoracotomy exploration risk prediction is realized by utilizing the prediction model.

The present invention provides an adjustable thoracotomy for general thoracic surgery, comprising a device body, wherein the device body comprises a fixed transverse plate, a fixed longitudinal plate and a movable plate, wherein the fixed transverse plate is provided with a groove in the middle position, the groove is provided with a partition plate for dividing the fixed transverse plate into an upper groove and a lower groove, the partition plate is provided with a strip through hole, and the inner side of the left end thereof is provided with a accommodating cavity which runs through the upper groove, the fixed longitudinal plate is fixedly connected to one end of the fixed transverse plate, and the movable plate is movably connected to the fixed transverse plate; a pushing component, wherein the pushing component is movably connected to the accommodating cavity; a tensioning component, wherein the tensioning component is movably connected to the right end of the fixed transverse plate, and the tensioning component is movably connected to the movable plate; a claw assembly, wherein the claw assembly is provided with two groups, which are movably connected to the fixed longitudinal plate and the movable plate respectively; through the cooperation of multiple components, uniform force is achieved during thoracotomy and the claw rotates according to the angle of the wound.