68 results about "Arteria femoralis" patented technology

Methods and apparatus are provided for treating congestive heart failure using a catheter having an inlet end configured for placement in the source of arterial blood such as the aorta, left ventricle or a femoral artery, and an outlet end having at least one conduit configured to be placed in the renal arteries. The catheter includes a lumen through which blood passes from the aorta or left ventricle directly to the renal artery, means for engaging the first conduit with renal artery. The means for engaging also may reduce backflow of blood into the abdominal aorta. The catheter preferably is configured to permit percutaneous, transluminal implantation. Methods of using and implanting the catheter are also provided.

The invention relates to a body anti-corrosive preservation solution. The raw materials in percentage by weight of the preservation solution are: 10 to 40 percent of glycerol, 10 to 70 percent of ethanol, 1 to 20 percent of metacetonic acid, 0.1 to 20 percent of hexamethylene tetramine, 0.2 to 10 percent of 5-chloro-2-methyl-4-isothiazoline-3-ketone, 0.1 to 1 percent of peppermint oil and the balance being water. The application mode of the preservation solution comprises the following steps: the anti-corrosive preservation solution is injected into the digestive system of a body from the oral cavity or the nose and the throat of the body; the anti-corrosive preservation solution is injected through an aortic arch, a brachial artery or a femoral artery; and the anti-corrosive preservation solution can also be used to wipe the surface of a body by a tampon dipped in the preservation solution. The body anti-corrosive preservation solution is nontoxic and harmless to an operator and is easy to operate; moreover, the preservation solution has no influence on the environment and excellent anti-corrosive effects, and can ensure that a body maintains a natural state and softness in a natural state (at room temperature) for 5 to 12 days. In addition, the preservation solution can be used repeatedly and has a simple preparing method, easily obtained raw materials and strong maneuverability; moreover, the preservation solution has convenient practical application and is propitious to popularize and use.

The invention relates to the field of medical instruments and provides a valve conveying system for implanting a valve from apex cordis. The valve conveying system comprises a controlling unit and a conveying unit which are connected, wherein the valve is loaded on the conveying unit which is used for conveying, releasing and recovering the valve, and the controlling unit is used for controlling the conveying, the releasing and the recovering of the valve. The valve conveying system for implanting the valve from the apex cordis can implant a self-expandable asymmetrical valve from the apex cordis into the sickness position through an interventional method under the condition of minimal incision, so that the shortcoming that the existing conveying system cannot implant the asymmetrical valve from the apex cordis is overcome. In the aspect of controllability, the valve conveying system for implanting the valve from the apex cordis is superior to the existing system for implanting the valve from the arteria femoralis, and the self-expandable asymmetrical valve is superior to a saccule expanding valve, wherein, the position of the saccule expanding valve cannot be adjusted after the saccule expanding valve is released.

A system and accompanying methods for treating a blockage of the superior femoral artery including utilization of a puncture insertion mechanism, an introducer sheath, a guide catheter and an expandable device. Entry into the body is established through the popliteal and advancing retrograde through the popliteal artery toward the lower superior femoral artery region and in some embodiments utilizing an introducer sheath, a guide catheter and a balloon are featured.

The device (1) is intended to be positioned in a sealed introducer placed in a femoral vein in order to penetrate the left atrium (4) of the heart (3) by passing through the septal wall (5) thereof. The device comprises an assembly for cooperating with a handle under the control of control means for actuation of the assembly, for placing and fixing a reinforcement ring (7) on the mitral valve (2), said assembly being arranged at the end of a manipulation rod (6) and comprising: a bearing member (8) comprising a plurality of arms (8a) connected pivotably to the end of the rod (6) so as to change, under the action of the control means, from a position folded along the rod (6) to a deployed position spaced apart from the rod (6), in order to bear under the mitral valve (2) in a manner uniformly distributed along the periphery of the mitral valve; a counter-bearing member (12) comprising a plurality of arms (12a), at the free end of which arms (12a) the reinforcement ring (7) is arranged, the arms (12a) are connected pivotably to a support (13) disposed coaxially with respect to the rod (6) in such a way as to change, under the action of the control means, from a position folded along the rod (6) to a deployed position spaced apart from the rod (6), in order to realize the counter-bearing on the mitral valve and to position the reinforcement ring (7); means for removing sutures for fixing the reinforcement ring (7) to the mitral valve.

The invention belongs to the technical field of medical materials, and particularly relates to alkyl chitosan-graphene oxide composite sponge and a preparation method and application thereof. The composite sponge comprises alkyl chitosan and graphene oxide adsorbed on alkyl chitosan, and adsorption capacity of graphene oxide is 3-28%. The composite sponge obtained by taking alkyl chitosan as a matrix and compositing graphene oxide and alkyl chitosan has excellent hemostatic performance and blood absorbing capacity. Embodiment results show that when the composite sponge is used for hemostasis,in-vitro whole blood coagulation time is less than 58s, hemostasis time of a rabbit femoral artery bleeding model is less than 155s, bleeding amount is less than 5.4g, and hemostasis effect is betterthan pure alkyl chitosan sponge or graphene oxide powder.

The invention relates to the field of medical apparatuses, and discloses an automatic compression hemostat for the arteria femoralis. The automatic compression hemostat comprises a shell, a compression pad, an adjusting rod, blood pressure sensors, a pressure sensor, a controller and a driving device. The blood pressure sensors, the pressure sensor and the driving device are electrically connectedto the controller. The blood pressure sensors are arranged at one side of the shell. The adjusting rod is slidably arranged at the shell, and the compression pad is arranged at one end of the adjusting rod so that the compression pad can follow the adjusting rod to move away from or close to the side, provided with the blood pressure sensors, of the shell. The driving device cooperates with the adjusting rod to be arranged at the shell. The pressure sensor cooperates with the adjusting rod. During use, the automatic compression hemostat for the arteria femoralis is fixed to puncture points ofthe arteria femoralis, so that the compression pad is arranged outside the puncture points. The blood pressure sensors can detect the current blood pressure value of a patient, and the controller controls the driving device according to blood pressure, so that the compression strength is suitable.

The invention relates to the technical field of revascularization and vascular repair and discloses a rat model for replantation after vascular injury. A process includes: step one, model selection; step two, rat anesthesia; step three, femoral artery cutting; step four, femoral artery suture; step five, postoperative management. The invention further discloses an assessment method of the rat model for replantation after vascular injury. The rat model which is convenient and quick in modeling, economical, low in cost and extensive in application range is provided for the field of vascular injury and repair research. An extensive platform is provided for researching specialized clinical therapeutic methods for hand surgery, plastic surgery, reparative and reconstructive surgery and the like, application to observation of curative effects of related medicines used after vascular injury is realized, and whether endangium, smooth muscle cells and related vascular activating factors participate in a repair process or not and related mechanisms in a vascular injury and repair process can be explored.

The invention relates to the field of animal models for basic scientific research, in particular to a construction method of a sepsis composite animal model, and the construction method comprises femoral artery intubation and cecum ligation puncture. The femoral artery intubation and cecum ligation puncture are combined for the first time to construct the sepsis composite animal model, the sepsiscomposite animal model is successfully applied to pharmacokinetic study of anti-sepsis drugs on model rats, continuous blood sample collection on the same rat can be achieved, the death rate of overall animals is not affected, and the number of experimental animals is greatly reduced. Meanwhile, reliable model animal pharmacokinetic data can be obtained, and important reference significance is achieved for drug research in related fields.

The invention provides a large-flow two-stage catheter pump for left ventricle assistance and a using method of the large-flow two-stage catheter pump. The large-flow two-stage catheter pump comprises a pump shell, an impeller, a guide vane, a radial fluid director and a motor. One end of the pump shell is a blood pump inlet, is implanted from femoral artery or axillary artery in a minimally invasive mode and is inserted into a left ventricle through an aortic valve, a blood pump outlet is formed in the side face of the pump shell and is communicated with an aorta, a motor is installed in the other end of the pump shell, and a rotor of the motor is connected with a transmission shaft. Two stages of impellers, two stages of guide vanes and a radial fluid director are arranged between an inlet and an outlet of the blood pump; the transmission shaft penetrates through the impeller, the guide vane and a central hole of one radial fluid director, is in transmission connection with the impeller, and is in non-transmission connection with the guide vane and the radial fluid director; power generated by the motor drives the impeller to rotate so that blood can be conveyed to the aorta from the left ventricle, and the left ventricle assisting effect is achieved. The two-stage impeller mode is adopted, so that the working condition requirement of blood pump assistance is met, and the survival rate of assistance is increased.

According to a handle and a conveyor for achieving quick and slow release of an interventional stent, by arranging a screw rod, a screw rod sleeve and a cam ring quick and slow switching mechanism, slow and quick release and convenient switching of the stent can be achieved. No matter which release state the handle is in, a reed of a telescopic tooth plate of the cam ring fast and slow switching mechanism always jacks a tooth plate to the deep arc-shaped groove position or the shallow arc-shaped groove position, so that the tooth plate can switch fast and slow release states only when the cam ring is manually shifted, and the whole handle is safe and reliable to use. A clamping hook and a clamping ring can be separated and unlocked by pressing a button on an arc-shaped clamping sleeve, so that a sheath tube and a guide head can be separated; after the interventional stent is released, the arc-shaped clamping sleeve, the clamping hook and the clamping ring are withdrawn to be hooked and locked again, so that when the whole conveyor is withdrawn, the guide head and the rear release mechanism cannot be separated from the sheath tube, a situation that the rear release mechanism scratches the intima is avoided, and a situation that the sheath tube, the rear release mechanism and the guide head are suddenly changed in size and difficult to operate when being withdrawn from the femoral artery incision in sequence is avoided.

The present invention provides a package comprising an aortoiliac artery graft and a record of a measured pressurized diameter of the aortoiliac artery graft, which measurement has been determined ex vivo under a pressure. A method of processing an aortoiliac artery graft is also provided. The processing method comprises subjecting an aortoiliac artery to a pressure ex vivo, and determining a measured pressurized diameter of the aortoiliac artery under the pressure. A method of treating abdominal aortic aneurysm, infected aortoiliac endograft or a traumatically damaged abdominal aorta or an iliac artery in a patient is further provided. The treatment method comprises anastomosing a processed aortoiliac artery graft with an aorta of the patient on the proximal end and the iliac or femoral arteries on the distal end, wherein a measured pressurized diameter of the processed aortoiliac artery graft has been determined ex vivo under a pressure.

The invention discloses a reverse vascular sheath. The reverse vascular sheath includes a sheath pipe, an outer sheath connecting body and a ball valve guide reversing device; the outer sheath connecting body is a columnar connector provided with an inner cavity, one end of the outer sheath connecting body is provided with a main guide pipe connecting hole, the other end of the outer sheath connecting body is provided with a sheath pipe connecting hole, and the sheath pipe connecting hole is connected with the sheath pipe; the ball valve guide reversing device includes a front ball valve, a first air pipe, a push rod, a guide pipe and an air source, the first air pipe is arranged in the inner cavity of the push rod, and the front end and rear end of the first air pipe are connected with the front ball valve and the air source respectively; the push rod is arranged in the inner cavity of the sheath pipe, one end of the push rod is connected with the front ball valve, and the other end of the push rod is connected with a sacculus filling hole; the guide pipe is arranged in the inner cavity of the sheath pipe. According to the above technical scheme, since the reverse vascular sheath can complete all kinds of operation in blood vessels only by puncturing arteria femoralis on one side, the surgical operation time can be reduced, incision infection and other complications are reduced, medical expenses are reduced, medical materials are saved and the patients' pain is relieved.

The invention relates to the technical field of the interventional department, and discloses a femoral artery paracentesis postoperation hemostasis nursing bed for the interventional department, the hemostasis nursing bed comprises a side plate, a hemostasis adjusting mechanism is arranged in the side plate, the hemostasis adjusting mechanism comprises a moving assembly, the moving assembly is arranged in the side plate, a telescopic compression assembly for compressing the femoral artery puncture position of a patient is arranged outside the moving assembly, a detection alarm assembly for detecting femoral artery bleeding of the patient is arranged in the telescopic compression assembly, and a timing assembly for controlling the compression force of the telescopic compression assembly is arranged in the telescopic compression assembly; and a triggering strip moves to be in contact with a timing button once every three hours, so that the operation of an electric telescopic rod is shortened by one twelfth of the total travel, the effect of assisting medical staff to automatically adjust the wound compression strength according to the compression time can be achieved, and the possibility that the blood circulation of the patient is not smooth due to long-time high-strength pressing is prevented.

The invention discloses a human body model applied to ECMO simulation practical training, which comprises a model main body and a simulated heart container arranged on the model main body, the simulated heart container is provided with a main venous canal and an aortic canal, and the model main body is provided with a femoral venous canal, a femoral artery canal, a jugular venous canal and a carotid artery canal. The upper end of the femoral vein tube, the lower end of the jugular vein tube and the main vein tube are connected through a three-way valve, the upper end of the femoral artery tube, the lower end of the carotid artery tube and the aorta tube are connected through a three-way valve, and the upper end of the jugular vein tube, the lower end of the femoral vein tube, the upper end of the carotid artery tube and the lower end of the femoral vein tube are all detachably connected with needle inserting tubes. According to the human body model, students can master clinical operation of ECMO skillfully, and meanwhile, a punctured tube can be replaced conveniently.

The invention discloses an alarm device for wound bleeding in a femoral artery interventional operation, which comprises a frame belt, a rotating shaft is arranged in the middle of the lower side of the frame belt, a merging block is arranged on the upper side of the frame belt, an air bag is arranged on the inner side of the frame belt, a cotton patch is arranged on the outer part of the air bag, and the cotton patch is arranged on the lower side of the frame belt. An air pipe is arranged on the outer portion of the front side of the air bag, a vacuum pump is arranged at the tail end of the air pipe, and a switch is arranged on the right side of the vacuum pump. According to the device, the exposed area of a wound is enlarged, the wound can be treated more conveniently, the device can adapt to different thicknesses of limbs of a patient through the air bag, binding operation is more convenient, an operation cotton belt can be rapidly fixed through the frame belt component, operation operation is more convenient, and operation efficiency is improved.

The invention belongs to the technical field of clinical medical rapid hemostasis, and particularly relates to cardiology department clinical compression rapid hemostasis equipment which comprises a supporting frame and a hemostasis assembly, the hemostasis assembly comprises a supporting tube, a hemostasis plate is arranged in the supporting tube, and the hemostasis plate is used for compressing the surgical wound position of a patient. A groove is formed in the center of the inner side of the hemostasis plate; the groove of the hemostasis plate is located in the center of the hemostasis plate, due to the fact that the center of the hemostasis plate is aligned with the puncture position of a patient, when the hemostasis plate conducts compression hemostasis on the femoral artery, the groove cannot generate direct pressure on the puncture position of the patient, and the hemostasis plate mainly uses the area around the groove to compress the femoral artery; therefore, the compression force of the hemostasis plate on the puncture position of the patient is dispersed instead of directly concentrating all the compression force on the puncture position of the patient, so that when the hemostasis plate is used for hemostasis by compression, the pain of the puncture position of the patient is not too violent.

The invention provides a portal frame capable of being transversely adjusted. The portal frame capable of being transversely adjusted comprises a rack capable of being transversely installed on a conduit bed and a driving structure installed on the rack. The driving structure is used for installing the interventional operation robot and can transversely move along the rack so as to adjust the position of the interventional operation robot. According to the portal frame capable of being transversely adjusted, the driving structure transversely moves along the rack to drive the interventional operation robot to do reciprocating motion on the rack, transverse adjustment is achieved till interventional devices such as catheters and guide wires on the interventional operation robot are aligned with blood vessels (such as arm radial arteries and leg femoral arteries) of a patient, operation is easy and efficient, and operation is convenient. And the practicability is high.