64 results about "Radial artery puncture" patented technology

The invention discloses a method for establishing a domestic rabbit atherosclerosis model, wherein the method includes high-lipidation processing on a domestic rabbit basic feed and intravenous injection of bovine serum albumin, also includes combined use of a vagina vasorum and a forcemeter for making domestic rabbit artery blood vessel endothelium injured, and particularly includes the following steps: carrying out paracentesis on a middle-lower segment of a femoral artery by 21G radial artery puncture needles; after the paracentesis is successful, inserting into a radial artery sheathing canal with the depth of 5 cm with the help of a guide wire; followed by, carrying out intravenous injection of 200 U/kg of heparin at an ear edge; after pulling out the guide wire, fixing a fine line at the tail end of the vagina vasorum, making the other end of the fine line connected with the forcemeter, allowing fingers of a left hand of an operative doctor to draw close to each other and press a femoral artery part internally containing the vagina vasorum, allowing a right hand to hold the forcemeter to pull out the vagina vasorum to 4 cm, and allowing the left hand pressing force to be 10 N displayed in the forcemeter as a degree, so as to cause vascular endothelial injury. The invention aims to provide the modeling method for the domestic rabbit atherosclerosis model, wherein the modeling method is short in period, strong in operability and relatively low in cost.

The invention relates to a radial artery puncture practice model and method and belongs to the technical field of medical machinery. The radial artery puncture practice model comprises an arm model, virtual intravascular and a pulse pressure pump. The arm model comprises virtual human skin, a virtual humeroradial tendon, a virtual carpi radialis flexor tendon and a radial artery channel, wherein the radial artery channel is located below the virtual human skin. The virtual intravascular is arranged in the radial artery channel and communicated with the pulse pressure pump so that virtual blood can be pumped into the virtual intravascular through the pulse pressure pump, and the human pulse can be simulated. Therefore, the radial artery puncture practice model enables the medical personnel to conduct puncture practice, improves the operating proficiency, relieves the pain of patients, can be repeatedly use due to the fact that the virtual intravascular and the virtual human skin can be replaced after being used, reduces the practice cost, and is simple in structure, real in simulation effect and simple and convenient in practice method.

The invention discloses an automatic artery compression haemostat and a hemostasis method. The haemostat comprises a tourniquet. An airbag is arranged on the tourniquet and is connected with an air pump, a deflation valve and a pressure sensor. A pre-amplification device is connected with the output end of the pressure sensor. An output signal of the pre-amplification device is divided into two channels, one channel is directly sent to a port AD0 of the AD (analog to digital) conversion end of a single microcomputer chip, and the other channel is connected with a port AD1 of the AD conversion end of the single microcomputer chip through a pulse signal processing circuit. The single microcomputer chip controls movements of the air pump and the deflation valve through connection. The artery hemostasis with pressure measuring and timing functions is used for hemostasis, pressure as needed by compression of artery puncture points is set according to individual blood pressure values of patients, and compression time as needed by radial artery puncture points is set according to bleeding and blood coagulation time of the patients and half-life periods of anticoagulants used in operations, so that hemostasis effect of the artery puncture points is improved, comfort level of the patients is also improved, complications caused by ultrahigh or ultralow pressure are avoided, and working efficiency of medical workers is improved.

The invention discloses a radial artery puncturing and positioning device comprising a fixing ring (1), and two sides of the radial direction of the fixing ring (1) are connected with connecting belts (2); a rotation ring (3) is connected below the fixing ring (1) in a sliding mode and is provided with a pressure numerical value display screen (4); the bottom surface of the rotation ring (3) is symmetrically provided with vibrating sensors (5) of which the output is connected with the pressure numerical value display circuit by a filtering amplifying circuit; and the rotation ring (3) is provided with a para-position identification (6) marking the position of the vibrating sensors (5). The vibration sensing technology is combined with LED screen voltage numerical value display to replace the mode of finger touch in the traditional method, so that the invention can accurately position the running direction and the position of the radial artery, improves first-time success rate of puncture, reduces the work load of arteriopuncture and avoids brining pain to patients by repeated puncture; and after the puncturing, a hemostasis bowl presses to carry out hemostasis, and the invention is convenient and quick to operate.

The invention provides a special fixing device for radial artery puncture, which includes a base, and a lifting mechanism is fixedly installed on the upper part of the base. There are two lifting mechanisms, which are axially symmetrical about the center of the base. The lifting mechanism includes a cross bar, The middle part of the cross bar is fixedly sleeved with the bushing, the front side of the bushing is fixedly connected to the support arm, the lower part of the support arm is fixedly connected to the pressure plate, and the upper part of the support arm is fixedly connected to the sheath tube clamp, and the sheath tube clamp is fastened by bolts to hold the sheath tube. A puncture needle is arranged in the sheath tube, and the left side of the crossbar is fixedly connected with a rivet. The structure of the present invention sets the sheath tube clamp and the support arm at a fixed angle of 45°, which increases the success rate of the puncture needle for puncturing the radial artery. On the other hand, the stimulation of the needle to the patient is reduced, and the crossbar is fixed at a certain height by fastening the nut, which is convenient for fixing the sheath after the puncture is successful, and reduces manpower to fix the sheath.

The invention provides a radial artery hemostasis device. The radial artery hemostasis device comprises a fixing band, a stressed plate and a pressing plate. The fixing band is provided with two opposite free ends. Two through holes are formed in the two ends of the stressed plate respectively, and the free ends of the fixing band penetrate in the through holes. One end of the pressing plate is connected into the through hole in one end of the stressed plate in a rotating mode, and the other end of the pressing plate is connected into the through hole in the other end of the stressed plate in a buckled mode. The other end of the pressing plate abuts against the inner side of the corresponding free end of the fixing band. According to the radial artery hemostasis device, temporary hemostasis by compression can be conducted on the radial artery puncture part of a patient, fixing is reliable, and the problem that the hemostasis effect is poor due to looseness of a hemostasis device is solved; moreover, compression force of the radial artery hemostasis device can be adjusted according to the blood flow condition at any time. The radial artery hemostasis device is easy to operate and safe and reliable in hemostasis.

The invention discloses an intelligent automatic radial artery compression hemostasis device. The device comprises compressor containing a wearing part, an organ-type telescopic inflation air bag, a sensor bin, a bleeding sensor and a silica gel compression pad; a pneumatic device containing a pressure sensor, an electromagnetic vent valve and a miniature diaphragm air pump; and a control system containing a control chip, a control circuit, a display screen, operation keys and an alarm device. According to the device, a preset pressure reduction program is adopted; the control system utilizesdata of the pressure sensor and the bleeding sensor to control the pneumatic device to adjust the pressure in an inflatable air bag, so that pressure decreasing type compression hemostasis of a radialartery puncture point is achieved, the purpose of intelligent automation is achieved, the labor intensity of medical staff is reduced, the pain of a patient is relieved, and postoperative complications are reduced. The compressor is separated from the pneumatic device and the control system, the compressor is a disposable article which is independently packaged and disinfected, the pneumatic device and the control system can be repeatedly used, and the use cost is reduced.

The invention provides an arm support device for a radial artery puncture. The arm support device comprises a back plate and an upper limb fixing device, the upper limb fixing device comprises an upper arm supporting device, a front arm supporting device, a hand supporting device and a palm fixing device, the upper arm supporting device, the front arm supporting device and the hand supporting device are sequentially connected through universal connecting members, and the front end of the hand supporting device is connected with the palm fixing device through a rotating shaft. Length of the arm support device can be adjusted and fixed correspondingly according to length of upper arms and front arms of a patient; angle of the arm support device can be adjusted and fixed correspondingly according to joint angle; the arm support device can be inward or outward rotated and fixed correspondingly according to a radial artery puncture point position of the patient; hands are enabled to extend and fixed through the palm fixing device. The arm support device is suitable for left and right radial artery puncture.

The invention relates to a radial artery puncture fixing compression plate which comprises a plate body. The plate body comprises an arm plate and a hand plate, and the position, between the end portion of the arm plate and the arm plate, of the hand plate is in a bending shape. According to the radial artery puncture fixing compression plate, the two ends of a wrist joint are fixed through the hand plate and the arm plate respectively, and an optimal puncture body position is provided for the wrist joint before puncture so that the success rate of radial artery puncture can be improved; the optimal body position of the wrist joint is maintained in the monitoring process, pipeline bending is reduced, one more body position adjustment and one more puncture needle fixation are reduced in the monitoring process, and interference with blood pressure monitoring and operations is reduced. The arm plate is provided with a detachable compression block, after sufficient gas is filled when radial artery pressure measuring is completed, a compression air bag and the compression block are matched so that a compression puncture point with proper pressure can be provided, personnel waste is reduced, the pressure is more stable and suitable, air bag soft compression can be achieved, the pressure is even, bruising can be avoided, the compression effect is better, cross infection caused by repeated usage is avoided, the applied range is wide, and safety and reliability are achieved.

The invention discloses an X-ray radiation prevention adjustable radial artery puncture fixing and operating device. The device comprises a universal fixing mechanism, a specific fixing mechanism and an operation mechanism, wherein the universal fixing mechanism comprises a fixing plate, a connecting arm, a bracket, a handle stent and a handle, the fixing plate is pivoted at the rear end of the connecting arm, a sliding chute is pivoted with the lower part of the bracket, the sliding chute is connected on the connecting arm in a clamping manner, the sliding chute can slide on the connecting arm along the axial direction of the connecting arm so as to drive the bracket to move together, the rear end of the handle stent is pivoted with the front end of the bracket, and the handle is pivoted on the handle stent; the specific fixing mechanism is provided with a fixing clamp, and can be fixedly connected with the connecting arm by virtue of the fixing clamp; and the operation mechanism is matched with the universal fixing mechanism and the specific fixing mechanism. The device has the beneficial effects of meeting the requirement for comfortable feeling of patients and improving the puncture success rate, has the X-ray shielding effect, and has the advantages of light weight, high strength, firmness and durability.

The name of the invention is an intelligent radial artery hemostat which relates to the technical field of medical appliances and is mainly used for compression hemostasis after a radial artery puncture intubation operation. The solution scheme of the invention is to provide a full-automatic intelligent air-bag compression hemostasis device which can realize automatic air inflation of an air bag, can detect a blood pressure and a pulse of a radial artery by the air bag, can monitor the blood pressure and the pulse, and can give a most suitable air pressure to realize a compression hemostasis function of the radial artery and realize healing of a punctured wound of the radial artery which can satisfy physiological requirements in a minimally invasive technology. The technical scheme provided by the invention is constituted of two components including an air-bag wrist strap and an intelligent air inflation machine, wherein the air-bag wrist strap is made through sewing of a suede face and a cloth lining, the two air bags are disposed in an interlayer located at the middle position, and the air bag corresponding to the radial artery is a dual-chamber air bag; and the wrist strap is fixed by a nylon bucket; the intelligent air inflation machine has a similar appearance with a television remote control, the internal structure of the intelligent air inflation machine is similar with the structure of an electronic sphygmomanometer, and processes such as a compression hemostasis period, a monitoring and hemostasis period and a subsequent compression period are expanded to control processes, so that the intelligent air inflation machine is equipped with a function to simultaneously complete the monitoring of the blood pressure and the pulse and complete the air pressure hemostasis.

The invention provides an improved sheathing canal for radial artery puncture. The sheathing canal comprises an outer sheath and an inner sheath which are in sleeve connection. An outer hole is formedin the side wall of the outer sheath. Each of the outer sheath and the inner sheath includes a first end and a second end which are opposite to each other. The inner sheath comprises a canal body, anair bag, an inflation channel, an inner hole and a guide wire channel. The inflation channel is connected to the air bag, and the inflation channel extends along the canal body to the second end. Theinner hole is communicated with the guide wire channel, and the guide wire channel extends to the first end along the canal body. The inflation channel and the guide wire channel are not communicatedto each other. The first end of the inner sheath is additionally provided with the air bag. Due to the fact that the surface of the air bag is more flexible, the vascular damage of a patient is less.The bulging air bag is arranged on the circumference of the wall of the inner sheath, and the end of the inner sheath can be fixed in the center of the air bag to isolate the inner sheath from the vessel wall. In addition, the air bag is elastic, and the diameter can be changed by inflation or water injection, so that the degree of expansion of the vessel wall can be flexibly determined.

The invention belongs to the technical field of medical devices, and specifically relates to a radial artery puncture retainer, including an arm support plate. The arm support plate is removably connected with an arc support frame. The arc support frame comprises an arc plate and a pair of guiding barrels fixedly connected to the arc plate. The guiding barrels are slidably connected with fixing sliding columns, and the arc plate is rotatably connected with a power fixing worm which allows the fixing sliding columns to slide in the guiding barrels. The fixing sliding columns are equipped with apress plate, and the fixing sliding columns can drive the press plate to rotate on the fixing sliding columns when sliding on the guiding barrels. The arc plate is rotatably connected with an activecontrol worm controlling the press plate to rotate on the fixing sliding column. The arc plate is rotatably connected with a first transmission worm which controls the sliding distance of the fixing sliding columns in the guiding barrels. The arc support frame can be removed from the arm support plate thereby being conveniently to remove after puncture of a patient; and when the fixing sliding columns drive the press plate to fix an arm, the press plate can automatically adjust the angle, and thus arms of different patients can be fixed conveniently.

The invention discloses a pressure hemostasis device. The device comprises a binding belt, an installing hole is formed in the binding belt, a hemostasis device body is arranged in the installing hole, the hemostasis device comprises an installing sleeve tube, a screw rod and a pressing pad, the outer wall of the installing sleeve tube is fixed in the installing hole, a thread is arranged on the inner wall of the installing sleeve tube, the lower end of the screw rod penetrates through an inner cavity of the installing sleeve tube to be in threaded connection with the installing sleeve tube, and the pressing pad is connected with the bottom of the screw rod. By means of the pressure hemostasis device, the pressure at a radial artery puncturing hole can be effectively adjusted to prevent excess of insufficient pressure to improve the radial artery hemostasis effect.

The invention belongs to the technical field of medical instruments, and particularly relates to an arm support device used for radial artery puncturing. The arm support device used for radial arterypuncturing comprises first trays, wherein second trays are installed on the tops of the first trays, the first trays and the second trays are rotatably connected through rotating shafts, a clamping board is installed on the bottoms of the first trays, and a double-shoulder strap is installed at the end, away from the first trays, of the clamping board. When a patient needs to be subjected to radial artery puncturing surgery, firstly, the clamping board is placed above the chest of the patient, then the patient carries the double-shoulder strap connected with the clamping board on the shoulders, thus the clamping board is fixed onto the chest of the patient, then the second trays in cooperation with the rotating shafts are made to be at the levels of the first trays, and then the patient can put the arms on the first trays and the second trays so that the arms can be supported, aching pain of the hands in a radial artery puncturing process is avoided, and comfort of the patient during radial artery puncturing is enhanced.

The invention discloses a radial artery puncture practice model. The system can achieve radial artery simulation, and meanwhile the frequency and strength of beating can be adjusted. The model comprises a heart rate simulation module, a vascular pressure adjustment module, a simulation arm, a simulation radial artery and simulation blood with red. Compared with the prior art, the system can simulate radial artery beating pressure and frequency, and anesthesiology students can practice a radial artery puncture close to the real puncture. The system is easy to operate, and a man-machine conversation interface is friendly. The beating part radial artery can meet the requirement of multiple punctures, and replacement can be conducted conveniently.

The invention provides a far-end radial artery tourniquet and a far-end radial artery hemostat. The far-end radial artery tourniquet and the far-end radial artery hemostat are used for compression hemostasis of puncture points after far-end radial artery paracentesis, wherein the far-end radial artery tourniquet comprises a compression air bag and at least three fixing bands, one ends of the at least three fixing bands are sequentially connected to the periphery of the compression air bag, the other end of each fixing band is provided with a connecting piece which is used for being connected with other fixing bands to fix the compression air bag during the compression hemostasis. According to the far-end radial artery tourniquet and the far-end radial artery hemostat, during the compression hemostasis, the fixing bands can conform to a hand shape to fix the compression air bag, the fixing effect is good, and a patient wears the far-end radial artery tourniquet and the far-end radial artery hemostat comfortably.

The invention provides a bed, supporting frame and device for radial artery puncture, and relates to the technical field of medical devices. The device includes an installation block, a supporting part and a fixing component; the supporting part is installed on the installation block, and the supporting part includes a convex part for supporting the position, to be punctured of an arm and a concave part where a palm is put; and the fixing component is installed on the installation block to fix the arm to be punctured. According to the device, the convex part and the concave part are designed,the height of the concave part and the arm is the same, so that the patient palm can be conveniently put in the concave part to avoid slipping and unstable placement, and the convex part raises a wrist to fully expose the position of the wrist to facilitate the radial artery puncture.

The invention belongs to the field of clinical nursing tools and particularly relates to a radial artery puncture aid, comprising a carrier plate; a rack guide plate extended in vertical direction isarranged on one side of a carrier groove of the carrier plate; the rack guide plate is sleeved with a guide block; a ratchet wheel portion and a pawl portion are arranged in the guide block; a cantilever plate is horizontally extended from the surface of the guide block; a presser plate is arranged at the cantilever end of the cantilever plate; when a patient rests the wrist at the carrier groove,the presser plate is positioned right above the radial artery of the patient's wrist; two groups of through holes penetrate the presser plate sequentially in the length direction of the carrier groove; the two groups of through holes form examination holes respectively which allow an operator to press the index finger and the middle finger inside to detect the pulsation of the radial artery; a needle hole allowing passage of a puncture needle is arranged in an area between the two groups of through holes. The radial artery puncture aid allows puncturing the patient's radial artery to be implemented quickly and efficiently, has the advantages of high operational convenience and one-hand operability and is easy to use clinically.

The invention discloses a full-automatic induction type radial artery puncture and blood sampling device, and belongs to the field of novel medical instruments. The device comprises two independent structure entities. The device assembly is provided with a semiconductor pressure sensor array; wherein a medical porous medium material for puncturing or a blood taking needle to pass through is arranged between the two rows of pressure sensors, and a device base body is made of medical plastic. The pressure detection signal processing entity module and the control puncture needle, blood taking needle and hemostasis rod entity module are two separated parts, and signal transmission is carried out between the two entities through the communication module. The semiconductor sensor is small in size, light in weight, low in cost, high in precision and beneficial to mass production. The radial artery puncture device has the advantages that the radial artery puncture device is convenient and easy to operate, the position of the radial artery can be rapidly positioned, a puncture needle can be conveniently guided into the radial artery, the success rate of radial artery puncture is greatly increased, and follow-up radial artery blood sampling and other clinical medical operation are facilitated.

The invention relates to the field of high-end equipment manufacturing and relates to the field of classification number B65D, in particular to a transradial artery puncture ablation catheter. The transradial artery puncture ablation catheter comprises a catheter body, an ablation electrode wire and control wires, the catheter body comprises a conveying pipe and an insulating pipe connected with the conveying pipe, the far end of the insulating pipe is a closed end, the near end of the insulating pipe is an open end, and N ablation holes are formed in the circumferential wall of the insulating pipe, wherein N is greater than or equal to 1; the ablation electrode wire is arranged in the catheter body, one end of the ablation electrode wire is fixedly connected to the closed end of the insulating pipe, and the other end of the ablation electrode wire is connected with equipment for providing ablation energy; the number of the control wires is M, the control wires are arranged in the catheter body, one end of each control wire is fixedly connected to the closed end of the insulating pipe, and M is larger than or equal to 1; and the insulating pipe has a first shape and a second shape by adjusting the control wires, in the first shape, the insulating pipe is suitable for moving in a blood vessel, and in the second shape, the insulating pipe is suitable for transmitting ablation energy to a part to be ablated.