32 results about "Thoracotomy" patented technology

Apparatus for delivering a prosthetic heart valve into a patient by means that are less invasive than conventional open-chest, open-heart surgery. The prosthetic valve may be collapsed while in a delivery device. When the valve reaches the desired implant site in the patient, the valve can be released from the delivery device, which allows the valve to re-expand to the configuration in which it can function as a heart valve. For example, the delivery device may be constructed to facilitate delivery of the prosthetic valve into the patient via the apex of the patient's heart.

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 invention discloses a quick-connection thoracotomy vascular stent system. The quick-connection thoracotomy vascular stent system comprises an artificial blood vessel, a laminating membrane stent and a support piece, wherein the laminating membrane stent comprises a stent body and a laminating membrane for covering the outside of the stent body, and the laminating membrane is longer than the stent body; the artificial blood vessel and the laminating membrane for covering the outside of the stent body are integrally woven, and a section of stent-less laminating membrane is arranged between the distal end of the artificial blood vessel and the proximal end of the laminating membrane stent; the support piece comprises a support ring and a tectorial membrane for wrapping the outer layer ofthe support ring; the support ring is located on the outer layer of the stent-less laminating membrane; and the support ring and the distal end of the tectorial membrane are matched on the laminatingmembrane in an anastomosis mode. A conveying system of the thoracotomy vascular stent comprises a conveying rod, a support structure, a conveying handle, a first control component, a second control component, and a fixing band. According to the vascular stent and the conveying system provided by the invention, the anastomosis between the proximal end of the descending aorta and the proximal end ofthe laminating membrane stent placed therein is avoided, and the surgical time is shortened.

The invention discloses a method for preparing a single-cell suspension of aortic cells of a mouse. The method is characterized by specifically comprising the following steps of firstly, preparing 1 ml of an enzyme mixed solution, the surviving healthy wild mouse, an operating table of which the whole tabletop is a flat ice surface and a plurality of instruments; and then, performing intraperitoneal injection anesthesia on the prepared wild mouse by 200-500 microliters of chloral hydrate until the mouse is dead, immediately performing perfusion flushing on blood vessels of the wild mouse by 20ml of a phosphate buffer salt solution, performing overall disinfection on the dead wild mouse by alcohol with the volume fraction of 75%, performing thoracotomy andlaparotomy after disinfection is completed, and exposing the heart and the aorta. The whole operation process is completed on the operating table. Preparation of a single-cell suspension of vascular tissues of the mouse by using a shearing and mixed enzyme combined digestion process is simple, convenient and feasible, more immune cells exist, and an effective tissue single-cell suspension preparation method is provided for research of vascular immune cells.

The invention provides an auxiliary pump blood catheter pump, which relates to the technical field of medical apparatus and instruments, and comprises a fixed support assembly, a fluid tube and an axial flow impeller, a blood inlet and a blood outlet are formed in the fluid pipe, the fixed supporting assembly is connected with the pipe wall of the fluid pipe, and the fixed supporting assembly has a reversible unfolding posture and a reversible storage posture; and the product can be implanted into a blood transfusion organ through a catheter, large surgical operations such as thoracotomy are not needed, trauma is small, and recovery is fast. When the device is applied to the aorta connected with the left ventricle, the blood inlet of the fluid tube is communicated with the left ventricle, and the device is used for improving the hemodynamic performance in the heart, increasing the cardiac output or assisting a high-risk cardiac surgery; when applied to the descending aorta, the product can improve the kidney perfusion pressure in the descending aorta and is used for preventing renal failure caused by acute heart failure; when applied to the interiors of superior vena cava, inferior vena cava or pulmonary arteries and the like, the pressure in blood vessels can be increased, and blood perfusion of all blood transfusion organs is improved.

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 invention relates to the technical field of thoracotomy fixation, in particular to a multipoint supporting type fixing device for thoracotomy in the thoracic surgery department. The fixing device comprises a fixing device body, a sliding device is arranged on one side of the fixing device body, opening devices are symmetrically arranged at the bottom of the sliding device, the fixing device body comprises a cylindrical fixing base, a fixing supporting column is connected to the top of the fixing base, a fixing arm is arranged at the top of the fixing supporting column, the sliding device comprises a sliding frame, the sliding frame comprises a sliding plate, a sliding rail is arranged at the axis of the sliding plate, a power device is arranged at the top of the sliding frame and comprises motors which are symmetrically arranged, a threaded lead screw is arranged at one end of each motor, ribs on the two sides of a patient are pushed aside slightly, and in the process, an assistant doctor abuts against the ribs of the patient, physical strength is greatly consumed, duration is short, surgeons are hindered from performing surgeries, the surgeries are inconvenient to operate, and surgical efficiency is reduced.

The invention discloses an adjustable thoracotomy device for general thoracic surgery. The adjustable thoracotomy device comprises connecting frames and positioning connecting pieces, wherein the tenpositioning connecting pieces are arranged, and the two connecting frames are arranged; the two connecting frames are symmetrically distributed left and right, the front ends and the rear ends of thetwo connecting frames are fixedly connected with sliding frames, and the four sliding frames are arranged; the four sliding frames are distributed in a completely symmetric mode, an expanding and contracting frame is movably connected between every two adjacent sliding frames in the front-back direction, and the expanding and contracting frames and the sliding frames are fixedly connected togetherthrough the positioning connecting pieces; and each of the two connecting frames is movably connected with one set of thoracotomy mechanisms, and the thoracotomy mechanisms and the connecting framesare fixedly connected together through the positioning connecting pieces. According to the adjustable thoracotomy device for general thoracic surgery, the two connecting frames are opened leftwards and rightwards by pulling the two expanding and contracting frames forwards and backwards, so that the two sets of thoracotomy mechanisms which are symmetrical leftward and rightward are opened leftwards and rightwards, then the thoracotomy effect is achieved, and use is more convenient.

The invention relates to a manufacturing method and application of a rat myocardial infarction model. The method comprises the steps of anesthesia, intubation, connection with a breathing machine to assist breathing, caudal vein blood drawing, solidification, breaking into tiny thrombus, layer-by-layer thoracotomy of intercostal space, injection of thrombus into a left trunk in the coronary artery direction, and observation of the electrocardiogram condition of a rat. Accurate embolism is caused by using autologous thrombus, target blood vessels can be embolized more accurately, the autologous thrombus can better reflect the pathophysiological state of model I-type myocardial infarction and has no rejection reaction, and a local coronary artery injection technology is far smaller in injury than ligation, more accurate in effect and lower in death rate. The method can be applied to medicines for evaluating and treating myocardial infarction and treatment methods for evaluating and treating myocardial infarction.

The invention discloses an adjustable thoracotomy device for a general thoracic surgery. The adjustable thoracotomy device structurally comprises a fixed point arm, a locking buckle, a sliding rod, an inductor and a distraction arm, wherein the fixed point arm is electrically connected with the inductor through the locking buckle, one end of the fixed point arm is arranged above the sliding rod in a sliding fit mode, the distraction arm is installed at the other end of the fixed point arm, the distraction arm comprises a connecting rod, a spacing layer, a supporting block, a clamping hook assembly and a running-in belt, the connecting rod is welded to the bent position of the distraction arm, the bottom of the connecting rod is fixedly connected with the running-in belt, the supporting block is inserted into the running-in belt, the arc-shaped inner side of the supporting block is connected with the spacing layer in an embedded mode, the clamping hook assembly is installed on the spacing layer, a dilation device and an ejector sliding structure are arranged in the hook assembly, the dilation device is matched with a supporting plate through the ejector sliding structure, when liquid on a rib lubricates the tip end of the distraction arm, the liquid can make contact with the supporting plate, opening and closing operation is conducted from the middle to the two sides through the dilation device and the ejector sliding structure, the contact area of the tip end is indirectly enlarged, and the downward sliding speed is changed.

The invention belongs to the technical field of heart auxiliary equipment, and discloses a percutaneous interventional left ventricle auxiliary device, which comprises a drainage tube, a return tube,a first catheter, a second catheter and a blood pump. The return tube is connected to the outer side of the drainage tube in a sleeving mode, and a cavity is formed between the return tube and the drainage tube. A plurality of groups of second through holes are formed in the tube wall of the return tube; and one end of the first catheter and one end of the second catheter are both nested in one end tube of the drainage tube. The auxiliary device is simple in structure and low in cost. By using the auxiliary device, thoracotomy and open-heart operations do not need to be performed on a patient,and the pain of the patient is reduced; in addition, treatment operation steps are reduced, the treatment time is saved, the treatment difficulty is reduced, and the treatment reliability is improved.

The invention discloses thoracic surgery department clinical operation thoracotomy auxiliary equipment, which comprises a bottom plate. An installation lifting mechanism is fixedly connected to the upper surface of the bottom plate, and a first installation mechanism is fixedly connected to the side, away from the bottom plate, of the installation lifting mechanism; a connecting mechanism is movably connected to the position, close to the lower end, of the first installation mechanism; a chest expanding mechanism (9) comprises two threaded sleeves (91), the two threaded sleeves (91) are in threaded connection to the threaded positions of the rod walls of the two sides of a two-way threaded rod (82), the two ends of each threaded sleeve (91) are each fixedly connected with two sliding plates (92), and the ends, away from the two threaded sleeves (91), of the four sliding plates (92) extend into the four second sliding grooves (62), and the four sliding plates (92) are connected into the four second sliding grooves (62) in a sliding mode.

The invention discloses an adjustable general thoracic surgery chest opener which comprises fixing mechanisms used for being clamped on the outer side of the thoracic cavity, the fixing mechanisms are provided with chest opening mechanisms used for adjusting the chest opening size, the number of the fixing mechanisms is two, and a connecting rod is arranged between the chest opening mechanisms. A supporting mechanism used for limiting the chest is arranged on the connecting rod. A screw rod of the fixing mechanism rotates to push a suction cup to be adsorbed on the body, the whole body is fixed, and the stability in the using process is guaranteed; by adjusting the pressure of hydraulic oil on the two sides of a piston head in a first cavity of the thoracotomy mechanism, the piston head can conveniently push a sliding block to move relatively, the distance position of thoracotomy limiting plates on a connecting rod can be conveniently fixed, meanwhile, by adjusting the position of a sliding ring of the supporting mechanism on the connecting rod, the distance between the limiting plates can be conveniently adjusted, and the thoracotomy effect is improved. And the air cushion in the U-shaped opening is convenient for limiting and supporting the chest, so that the overall practicability is improved.

The invention provides an adjustable chest opener for general thoracic surgery, which comprises a device body, the device body comprises a fixed transverse plate, a fixed longitudinal plate and a movable plate, a groove is formed in the middle of the fixed transverse plate, a partition plate for dividing the groove into an upper groove and a lower groove is arranged in the groove, a strip-shaped through hole is formed in the partition plate, and the movable plate is arranged in the groove. A containing cavity penetrating through the upper groove is formed in the inner side of the left end of the fixed transverse plate, the fixed longitudinal plate is fixedly connected to one end of the fixed transverse plate, and the movable plate is movably connected with the fixed transverse plate; the pushing assembly is movably connected to the interior of the containing cavity; the tensioning assembly is movably connected to the right end of the fixed transverse plate, and the tensioning assembly is movably connected to the movable plate; the number of the pusher dog assemblies is two, and the pusher dog assemblies are movably connected with the fixed longitudinal plate and the movable plate correspondingly; through cooperation of multiple assemblies, the force is uniform during thoracotomy, and the pusher dog rotates according to the angle of a wound.

The invention relates to the technical field of thoracotomy and expansion, and discloses rib traction and expansion equipment for cardiology department surgery. The equipment comprises a transfer table, the left side and the right side of the transfer table are fixedly connected with fixed tables, the middle part of the transfer table is provided with a groove, and the fixed tables are fixedly connected with a supporting table through brackets arranged at the bottoms of the fixed tables; the supporting table is movably connected with telescopic rods through supporting legs arranged at the bottom of the supporting table, universal wheels are fixedly connected to the bottoms of the telescopic rods, and the transfer table is slidably connected with the sliding blocks through the grooves. According to the rib traction expanding equipment for the cardiology department operation, the transmission rod drives the concave wheel and the transmission belt to perform transmission by rotating the adjusting handle on the left side of the supporting legs, then the rotating threaded column, the gear and the single-row gear move, the movement rate of the sliding block is controlled by matching with elastic deformation of the spring, and the situation that when the expanding equipment is close to ribs, the handle is rotated excessively, thus the ribs are strained can be avoided, and the ribs are protected, and the expanding and supporting effect is good.

The invention discloses a transcatheter implantation flexible double-cavity auxiliary device for providing circulating power for a Fontan patient. The transcatheter implantation flexible double-cavity auxiliary device comprises an external support which is a flexible self-expansion support and is used for fixing the device after being expanded; a rotating shaft, wherein the upper end of the rotating shaft is rotatably connected with the upper end of the external bracket, and the lower end of the rotating shaft is connected with a power unit; and an impeller which is located in the outer support and installed on the rotating shaft to rotate along with the rotating shaft, wherein a hub of the impeller is of a streamline structure. The flexible double-cavity auxiliary device has compressibility and is implanted into the body of a patient through femoral veins by means of a conveying catheter through a minimally invasive surgery, and complex thoracotomy and large surgical wounds are avoided. When the impeller rotates, circulating power can be provided for a patient, blood of the upper vena cava and the lower vena cava is assisted to enter the pulmonary artery, and energy consumed by the blood flowing into the pulmonary artery from the vena cava can still be reduced through the streamline design of an impeller hub even if faults occur and the impeller is in a static state.

The invention discloses a modeling method of a tumor orthotopic tumor animal model and the tumor orthotopic tumor animal model. The modeling method comprises the following steps: performing general anesthesia on an animal; shaving and disinfecting the target visceral organ area of the animal; placing an ultrasonic probe in a target organ area to obtain parameters of the target organ and peripheral tissues; based on the parameters, marking interested body surface puncture needle insertion points and target organ puncture points; connecting the body surface puncture needle insertion point with the target organ puncture point to generate a puncture path; puncturing by using a micro-injection needle according to the puncture path to reach the target visceral organ position; injecting the tumor cells in the injector into a target visceral organ position through a micro-injection needle; the tumor cell injection process is observed in real time through ultrasound, and after all tumor cells are injected, the needle is rotated out to obtain the tumor in-situ tumor animal model. The method has the advantages of small trauma, high tumor formation rate, fast recovery and stable operation, avoids large trauma such as laparotomy, pelvic opening and thoracotomy, has no influence on surrounding organs, and has great application potential.

The invention relates to a rehabilitation device after thoracotomy. The device is formed by connecting a rigid protective strip and a connecting unit which can be extended greatly but can be shortened slightly or cannot be shortened, and is provided with a respiratory training device, and under intelligent control of a processor, according to a respiratory signal and a thoracic signal, the wearing adaptability of the rehabilitation device, the respiratory function completeness of the patient and the respiratory training effect are prompted.

The invention discloses a positioning and exposing device for a side thoracotomy cardiac surgery. The positioning and exposing device comprises a fixing rod, a first sliding block, a swing rod and a sliding sleeve, wherein a first sliding groove extending in the length direction is formed in one end of the fixing rod, the first sliding block is arranged in the first sliding groove, the first sliding block can reciprocate in the first sliding groove, one end of the swing rod is hinged to the end, away from the first sliding block, of the fixing rod, the other end of the swing rod is sleeved with the sliding sleeve, the sliding sleeve can slide on the swing rod, and a telescopic device is arranged between the sliding sleeve and the first sliding block. Due to accurate positioning, the intercostal space of a thoracic cavity can be quickly positioned, the operation efficiency is improved, and the surgical difficulty is also reduced; lung tissues can be completely shielded by using a lung exposure device, and a cardiac surgery part is fully exposed; and by using pericardium exposure forceps, the atrial ventricle in the pericardium and the thymus outside the pericardium can be shielded at the same time, the pericardium is fully exposed, pericardium incision is facilitated, and meanwhile surrounding tissue is prevented from being burnt.