107 results about "Artery puncture" patented technology

To provide a blood purification device that can accurately determine whether a venipuncture has been performed correctly in a patient. [Solution] The blood purification device 1 comprises a blood purifier 3 capable of purifying blood, a blood circuit 2 having an arterial blood circuit 21 with an arterial puncture needle 211 attached to its tip and a venous blood circuit 22 with a venous puncture needle 221 attached to its tip, an impedance measuring unit 5 having an oscillator 53 that applies an AC voltage between an arterial electrode 51 provided on the arterial blood circuit 21 and a venous electrode 52 provided on the venous blood circuit 22, and capable of measuring the frequency characteristics of the impedance between the arterial electrode 51 and the venous electrode 52, and a puncture determination unit 72 that determines whether the patient has been properly punctured based on the measured impedance frequency characteristics, and further comprises a frequency range determination unit 70 that determines the frequency range of the AC voltage applied by the oscillator 53 according to the liquid in the blood circuit 2.

The utility model discloses an artery puncture pressing auxiliary device which can reduce the labor intensity of medical staff, can apply specific pressure to a puncture point and can improve the pressing efficiency. The artery puncture pressing auxiliary device comprises a shell, a pressing cotton ball, a push rod and a first flexible splicing belt. An opening is formed in one end of the shell in the axial direction of the shell. Along the axial direction of the shell, the pressing cotton ball is movably arranged in the shell and can extend out of the opening. One end of the push rod is connected with the pressing cotton ball, the other end penetrates through the other side of the shell in the axial direction, and the push rod is used for adjusting the position of the pressing cotton ball relative to the opening. The first flexible adhesive tape shell is connected with the flexible adhesive tape, the first flexible adhesive tape is provided with a first through hole corresponding to the opening in the thickness direction of the first flexible adhesive tape, and the pressing cotton ball penetrates out of the first through hole.

The invention relates to the technical field of medical instruments and clinical nursing, in particular to a radial artery puncture navigation system based on multi-modal sensing and digital projection, which comprises the following steps: a multi-modal blood vessel signal acquisition module, which is used for acquiring a blood vessel pulsation signal on the wrist of a patient through a photoplethysmography sensor array, the strongest pulsation line is positioned through the pressure sensor array, and the blood vessel depth and artery and vein distinguishing information are obtained through the bioelectrical impedance sensor array. According to the invention, through multi-modal blood vessel signal acquisition, blood vessel dynamic deformation modeling, personalized digital twinning construction and dynamic updating, projection path generation and control, and projection output and real-time error compensation, real-time visual projection of a blood vessel center line and local deformation is realized; therefore, the problem that puncture positioning is not accurate due to the fact that dynamic changes of blood vessels cannot be accurately reflected due to the fact that most traditional radial artery puncture adopts a hand feeling positioning method is solved.

The cardiology department puncture auxiliary positioning device comprises two pairs of fixing frames, the two pairs of fixing frames are oppositely arranged, the pair of fixing frames located at the upper end are connected through a connecting rod, the other pair of fixing frames are fixedly connected to the two sides of an extension plate respectively, a plurality of clamping grooves are formed in the bottom ends of the fixing frames, and a connecting plate is slidably clamped in each clamping groove; the two connecting plates opposite in position are connected through fastening belts, and the fastening belts connected with the two pairs of fixing frames are arranged in a staggered mode in the horizontal direction. The fixing frame can be matched with the control assembly to fix the arm of a patient, meanwhile, the fixing frame is matched with the fixing assembly to fix the palm of the patient, and the patient can conveniently maintain the hand posture for a long time during radial artery puncture so as to stably conduct radial artery puncture; and finally, the puncture direction of the medical staff is guided through the auxiliary assembly.

The utility model provides a disposable adjustable blood vessel puncture body position fixing device. Comprising an arm plate and a fixing belt, two elastic bands are fixed to the fixing belt, first hook-and-loop fasteners are arranged on the two elastic bands, second hook-and-loop fasteners matched with the first hook-and-loop fasteners are arranged on the fixing belt, a wrist plate is fixed to one side of the arm plate, a hand protection plate is fixed to one side of the wrist plate, a first adjusting plate is arranged on the arm plate, and a second adjusting plate is arranged on the arm plate. A first adjusting plate is arranged on the wrist plate, a second adjusting plate is arranged on the hand protection plate, protection pads are arranged on the arm plate and the hand protection plate, and the wrist plate, the first adjusting plate and the second adjusting plate are all made of plastic aluminum materials. The disposable adjustable blood vessel puncture body position fixing device solves the problems that a radial artery puncture fixing device cannot fully limit tiny movement of an arm and a palm and cannot meet the requirement of personalized adjustment, so that a patient feels uncomfortable in the long-time fixing process.

The present application belongs to the technical field of radial artery hemostasis device, and particularly relates to a radial artery intelligent compression hemostasis device, which comprises a shell, a pressure sensor, a speed reducer and a compression rod, the pressure sensor and the speed reducer are both arranged in the shell, the fixed end of the pressure sensor is fixedly connected with the shell, the speed reducer is fixedly arranged at the measuring end of the pressure sensor, the output end of the speed reducer is threadedly connected with one end of the compression rod, a guide channel is arranged on the shell, the compression rod is slidingly arranged in the guide channel, the end of the compression rod away from the speed reducer is provided with a pressing plate, the pressing plate is exposed to the shell, a silica gel compression pad is detachably arranged on the pressing plate, a bandage is arranged on the shell, the bandage is used for binding the radial artery intelligent compression hemostasis device on the wrist of a patient, and at this time, the compression pad is pressed on the radial artery puncture point. The hemostasis device avoids long-time compression of the distal end of the radial artery, avoids insufficient pressure from causing bleeding, and most quickly achieves the purpose of radial artery compression hemostasis, and reduces secondary injury and sequelae after compression.

A blood purification device (1) comprises: a blood purifier (3) capable of purifying blood; a blood circuit (2) including an arterial-side blood circuit (21) which has an arterial-side puncture needle (211) attached on the distal end thereof, and a venous-side blood circuit (22) which has a venous-side puncture needle (221) attached on the distal end thereof; an impedance measurement unit (5) including an oscillator (53) that applies an alternating-current voltage across an arterial-side electrode (51) provided to the arterial-side blood circuit (21) and a venous-side electrode (52) provided to the venous-side blood circuit (22), the impedance measurement unit being capable of measuring frequency characteristics of the impedance between the arterial-side electrode (51) and the venous-side electrode (52); and a puncture determination unit (72) for determining, on the basis of the measured frequency characteristics of the impedance, whether a patient has been punctured normally. The blood purification device also comprises a frequency range determination unit (70) for determining the frequency range of the alternating-current voltage applied by the oscillator (53) in accordance with the liquid in the blood circuit (2).

The invention is applicable to the field of medical auxiliary instruments, and provides a femoral artery puncture point compression device which comprises a shell, an insertion frame, a compression block mounting shell, a telescopic rod, a compression block, a sliding sleeve, a sliding rod, a first compression spring, a retaining assembly, an alternate telescopic mechanism and a pneumatic supporting mechanism. An inserting groove is formed in the shell, the tail end of the inserting frame is connected to the inserting groove in a sliding mode, and the pressing block mounting shell is fixed to the inserting frame; the holding assembly is disposed on the housing. The alternate telescopic mechanism drives the two adjacent sliding sleeves to alternately drive the supporting plate to support the limb, then different positions of the limb are fixed, discomfort caused by long-time fixing of the same position of the limb is avoided, the limb massage effect can be achieved in the mode that the two adjacent sliding sleeves alternately drive the supporting plate to support the limb, and the limb massage effect is improved. And the limbs are always supported by the supporting plate, so that the compression stability of the compression block on the puncture point is ensured.

The utility model relates to the field of medical treatment, and discloses an anti-backflow artery puncture catheter which comprises a first catheter, a fixing assembly is arranged on the outer side of the first catheter, one end of the first catheter is fixedly connected with a connecting base, and the other end of the first catheter is fixedly connected with an anti-backflow assembly. The countercurrent assembly comprises a fixing pipe, the interior of the fixing pipe is fixedly connected to one side of the first guide pipe, a first cavity is formed in the fixing pipe, a second cavity is formed in the fixing pipe, a connecting block is fixedly connected to the inner wall of the fixing pipe, an input hole is formed in the connecting block, and a circular plate is slidably connected to the inner wall of the second cavity. According to the utility model, liquid passing through the interior of the catheter I flows into the fixed tube and flows into the cavity I through the input hole, so that the impact force on the circular plate is increased, the circular plate can be better moved downwards, and the cavity II is blocked, thereby avoiding the occurrence of a backflow condition, effectively preventing blood from flowing back, and improving the operation safety and stability; and the infection risk is reduced.

The application discloses a nerve interventional operation post-arterial puncture point compression device, and relates to the puncture compression technical field; the device comprises a compression mounting piece, two traction monitoring pieces are installed on the compression mounting piece, and the two traction monitoring pieces are respectively used for keeping the body position; an upper compensation piece is installed on the upper traction monitoring piece; a lower compensation piece is installed on the lower traction monitoring piece; the lower compensation piece and the upper compensation piece are used for preventing friction and extrusion; and the compression mounting piece is used for pressing the puncture point; so as to solve the problem that the current arterial puncture point compression device is inconvenient to control and correct the compression point position without disassembling the bandage; the traction monitoring piece is adapted according to the femoral artery puncture position, and once the patient bends the leg or bends the waist, the restraint band can be further tightened.

This invention discloses a hemostatic auxiliary compression device for use in cardiology nursing, relating to the field of medical hemostatic devices. The hemostatic auxiliary compression device for use in cardiology nursing includes a fixed base and further includes: an adjustment component mounted on the fixed base; and a compression component mounted at the bottom of the fixed base. Through the adjustment component, the compression component can compress the patient's radial artery to achieve hemostasis. The compression component includes a device housing, a compression plate, and compression airbags. The device housing has a bottom opening and is mounted at the bottom of the fixed base. The compression plate is slidably connected inside the device housing, and multiple sets of compression airbags are mounted at the bottom of the compression plate. This invention achieves hemostasis after radial artery puncture while relieving local muscle tension and discomfort in the patient through a dynamic airbag adjustment mode, ensuring the stability of the hemostatic effect and significantly improving patient comfort.

The utility model provides a restraint glove for protecting a radial artery puncture part, which comprises a hand protective sleeve and an arm restraint cylinder, a first fixing ring is arranged at an opening of the hand protective sleeve along the edge of the opening, and a second fixing ring is arranged at an opening at one end of the arm restraint cylinder along the edge of the opening. The first fixing ring and the second fixing ring are connected with each other through more than one connecting piece, and a gap is formed between the first fixing ring and the second fixing ring. The utility model solves the technical problems in the prior art that the puncture position of the radial artery is difficult to observe, the blood vessel of the hand of a patient is unsmooth and the fingers of the patient are cold because the radial artery indwelling catheter and the restraint glove are scratched.

The invention discloses a hepatic artery radiofrequency ablation method and ablation catheter. The ablation method comprises the steps that a target puncture point is positioned, and a radial artery puncture channel and an interventional ablation environment are established; guiding an ablation catheter to enter a target treatment point corresponding to the target artery branch; adjusting the end shape of the ablation section tube; the ablation catheter comprises an ablation section, a conveying section, a connecting section and a signal section. The catheter is inserted through a vascular intracavity path, penetrates into the hepatic artery or a near-end branch of the hepatic artery, targets autonomic nerves around the hepatic artery to carry out temperature control type radiofrequency ablation, and has the advantages of accurate positioning, safe control, uniformity of energy release and tissue adaptability; by adjusting the fitting posture of the spiral structure of the ablation section and adapting to the characteristic parameters such as the curvature direction, the tortuosity and the opening angle of the hepatic artery, it is ensured that the metal electrode can be effectively fitted with the tube wall to transmit radio frequency energy, meanwhile, the punching rate is reduced, liver parenchyma puncture injury is avoided, and meanwhile systemic intervention such as blood pressure regulation and metabolic function regulation is achieved.

The invention discloses a neonatal umbilical artery and vein puncture catheterization training model which is characterized by comprising a neonatal model and a puncture needle model. A simulated heart is arranged in the thoracic cavity of the newborn model; the aorta and the inferior vena cava are connected with the simulated heart; the puncture needle model is rod-shaped, and a working part is arranged at the front end of the puncture needle model; the periphery of the vein puncture path and the artery puncture path is sleeved with a plurality of sets of electromagnetic coils in the axial direction; each group of electromagnetic coils is provided with an independent main switch, and the main switches of all the electromagnetic coils are arranged along a puncture path one by one, so that the main switch can be triggered when the working part of the puncture needle model passes through one main switch, and the corresponding electromagnetic coil is electrified to generate an acting force in a correct puncture direction on the working part. According to the invention, force sense direction guidance can be provided during puncture practice.

The utility model discloses an arterial puncture fixing paster, which relates to the technical field of arterial puncture, and comprises an adhesive tape mechanism and a fixing mechanism, two arc-shaped clamping pieces are close to each other to clamp and fix a puncture needle by pulling two ribbons to move in opposite methods, and the puncture needle is pressed and fixed by using the two ribbons while the puncture needle is pressed and fixed by using the two ribbons. The two arc-shaped clamping pieces are used for limiting the puncture needle left and right, the puncture needle is prevented from deviating left and right after puncturing, the stability of the puncture needle is enhanced, the surface of each ribbon is provided with an arrow in the ribbon pulling direction, it is guaranteed that the pulling direction of medical staff is correct each time, and meanwhile the device is a disposable device, cannot be used secondarily and is convenient to use. And cross infection among patients is avoided.

The utility model relates to the technical field of compression hemostasis devices, in particular to a child transparent peripheral artery puncture compression hemostat which comprises an elastic bandage. An empty groove is formed in the middle of the upper surface of the elastic bandage in a penetrating mode, hemostatic cotton is arranged at the lower position in the empty groove, and the upper surface of the elastic bandage is provided with the placing bag above the empty groove. A transparent sterile air bag is placed in the placing bag; by arranging the air bag adjusting valve and the balloon pressure sensing device, the transparent sterile air bag can be inflated, meanwhile, the inflation amount of the transparent sterile air bag can be accurately controlled, the pressure of the transparent sterile air bag on the hemostatic cotton is indirectly adjusted, and therefore the purpose of compression hemostasis is achieved. And when a bleeding point is pressed, medical staff can conveniently and visually observe the hemostasis condition of the bleeding point.

The utility model relates to the technical field of arterial puncture. The novel artery puncture needle comprises an indwelling hose, a needle core is inserted into the indwelling hose in a sliding mode, the outer surface of the top end of a first observation column is sleeved with an outer sleeve in a sliding mode, spring buckles are fixed to the two sides of the top end of the first observation column, and a clamping plate is fixed to the top end of the needle core. Push plates are slidably inserted in the positions, close to the small springs, of the two sides of the lower end of the outer sleeve. The first observation column, the outer sleeve, the push plate, the small spring, the second observation column, the clamping plate and the large spring are used in cooperation, the needle core can be effectively prevented from being exposed outside, and occupational exposure accidents are reduced; the first observation column, the one-way check valve, the spring buckle, the outer sleeve, the needle core and the formed clamping hole are used in cooperation, and the situation that the indwelling hose is pulled out of the blood vessel by mistake due to tedious steps, difficult operation and the like, and consequently blood splashing is caused can be prevented.

This utility model provides a mobile radial artery puncture and catheter placement fixation frame, including a support plate, a connecting rod, a palm fixation strap, an inflatable wrist support module, a rotation adjustment module, a fixing rod, and a positioning bolt. The connecting rod is located at the bottom of the support plate along its length. The middle part of the palm fixation strap is movably and adjustablely fitted onto the connecting rod, and both ends of the palm fixation strap extend out from both sides of the support plate. The two ends of the palm fixation strap are fixedly connected together in an adjustable position, and the palm fixation strap is used to fix the patient's palm. The inflatable wrist support module is movably and adjustablely located on the support plate, and the inflatable wrist support module is used to elevate the patient's wrist. The rotation adjustment module is located at the bottom of the support plate and is used to adjust the angle of the support plate. The fixing rod is connected to the rotation adjustment module and is located below the support plate. The fixing rod has a limiting groove for the movable infusion rod to be inserted. The positioning bolt passes through the fixing rod and can extend into the limiting groove.

Embodiments described herein relate to a shunt for treating an aortic aneurysm and a robotic insertion system for implanting the shunt. In some embodiments, the shunt may include a central portion, an arterial sealing structure, and a venous sealing. In some embodiments, the venous sealing structure may have a lateral length in its deployed configuration, and the arterial sealing structure having a lateral length in its deployed configuration that is greater than the lateral length of the venous sealing structure. The shunt may be advanced robotically in a delivery configuration through a venous puncture site of a vein to access an arterial puncture site of the artery, and then deployed, thereby enabling blood flow through the shunt from the artery to the vein.

The invention belongs to the technical field of arterial puncture, and discloses a disposable arterial puncture needle extraction compression bag which comprises a main elastic bandage, a gauze bag is arranged in the center of the bottom of the main elastic bandage, and stretching color-changing coatings are symmetrically arranged on the two sides of the surface of the main elastic bandage. The stretching color-changing coating, the main elastic bandage, the second adhesion layer and the like are arranged, in the actual use process, a medical worker can place a gauze bag on a wound, the gauze bag is covered with the main elastic bandage from top to bottom, then the main elastic bandage is stretched from the two sides, and the main elastic bandage and the second adhesion layer are attached to each other; the color of the stretching discoloration coating gradually changes from green to yellow and finally to red, medical staff can control the pressing force of the gauze bag on the wound by observing the color change of the stretching discoloration coating, and the problem that at present, the pressing force of the gauze bag on the wound can only be controlled through experience of the medical staff, so that the working efficiency is high is solved. And the practical use is inconvenient.

The invention belongs to the field of medical model manufacturing, and relates to a manufacturing method of an arterial puncture model, which comprises the following specific steps: fixing a simulated artery latex tube in a mold inner core, wiping cleanly, uniformly spraying a pre-prepared primer on the latex tube, ventilating and drying, and fixing the latex tube in a first mold; injecting a pre-mixed addition type liquid silica gel mixture I into the first mold, curing, and demolding to obtain a first module of the artery puncture model; fixing the obtained first module in a second mold, injecting a pre-mixed addition type liquid silica gel mixture III into the second mold, curing, and demolding to obtain an artery puncture model; and cleaning the surface of the obtained artery puncture model, and coating the surface with silicon dioxide to obtain the artery puncture model. The latex tube in the arterial puncture model manufactured by the method is more firmly attached to the simulated subcutaneous tissue, and does not leak after being worn for a long time, so that the service life of the model is prolonged, and the use cost is saved.

This utility model discloses a radial artery puncture device with ultrasound detection function in the field of radial artery puncture technology. It includes a puncture device base with a puncture channel in the middle, extending through both ends of the puncture device base. A puncture needle and cannula can slide back and forth within the puncture channel. A detection surface is provided at the front end of the puncture device base, on which an ultrasound probe for detecting the radial artery is mounted. The detection surface is tilted towards the puncture channel so that the ultrasound probe is close to the outlet of the puncture channel. A cannula fixing assembly for fixing or releasing the cannula is provided on the right side of the puncture device base, and a puncture needle moving assembly for driving the puncture needle and cannula to advance synchronously or for the puncture needle to retract independently is provided on the left side of the puncture device base. It can accurately puncture the radial artery, achieving success in one attempt, reducing patient pain, and saving time.

1. The name of the design product: radial artery puncture intervention compression hemostat bracket. 2. The use of the design product: the product is used with hemostatic materials to compress the artery to stop bleeding, stabilize the soft tissue activity of the upper limb, and prevent the loosening of the hemostatic materials caused by the movement of the upper limb. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The invention relates to the technical field of medical instruments, in particular to an artery blood sampling auxiliary device and method, and the device comprises a strip-shaped shell, a lifting mechanism, a fixing mechanism and an annular pressure sensor. A groove with a rubber block is formed in the bottom of the shell and used for fixing and sealing the needle point. The body surface pressure distribution is symmetrically analyzed through the pressure sensor, and an artery puncture point is automatically positioned. The lifting mechanism drives a screw rod through a stepping motor to drive a sliding block and a fixing mechanism to move. The fixing mechanism adopts a first clamping plate, a second clamping plate and a blood drawing unit (a balancing weight or a servo motor-lead screw structure) to respectively clamp a piston shaft and an empty cylinder of the injector, so that automatic operation of puncturing, blood drawing and needle withdrawing is realized. A second pressure sensor is arranged in the device to monitor the pressure in the needle in real time, puncture safety is guaranteed, and the blood drawing amount can be accurately adjusted. Due to the integrated design, the puncture success rate and the blood sampling efficiency are remarkably improved, and the operation difficulty and the pain of a patient are reduced.

The utility model discloses a radial artery grading compression hemostasis device, which comprises a pressurizer and bridles connected to two sides of the pressurizer, the pressurizer comprises an inner core and an elastic air bag coated on the outer surface of the inner core, the air bag is provided with an air inlet and an air outlet, and the air inlet is provided with an inflation mechanism. A grading adjusting rod corresponding to the exhaust port is embedded in the inner core, and a sealing cover is arranged at the outer port of the exhaust port; a pressure sensor is arranged in the interlayer on one side, close to the body, of the air bag, and a pressure signal of the pressure sensor is transmitted to the display screen to be displayed. The radial artery compression hemostasis device not only can accurately and linearly control compression force for hemostasis at a puncture position of the radial artery, but also can set an adjusting range of decompression and relieving for a patient on the premise of keeping effect and ensuring safety, improves flexibility of adjustability of compression hemostasis work and reflects humanistic care of medical care work on the patient.

The invention relates to the technical field of femoral artery puncture surgical instruments, and discloses a femoral artery puncture port intelligent induction automatic protector which comprises a limiting mechanism, an angle adjusting mechanism, an angle fixing mechanism, a pressing mechanism, a pressing auxiliary mechanism and a ventilation mechanism. The angle adjusting mechanism is used for adjusting the pressing position according to the position and angle of the femoral artery, and the angle fixing mechanism is used for fixing the adjusted pressing angle, is in linkage with the pressing mechanism and can adjust the angle and position of the pressing auxiliary mechanism in the process that the pressing auxiliary mechanism gradually approaches a femoral artery puncture opening. The pressing assisting mechanism is used for accelerating wound healing and meanwhile enabling blood vessels to contract, the ventilation mechanism is used for keeping ventilation in the protector shell, bacteria breeding caused by human body sweating is prevented, and the femoral artery puncture opening is pressed and assisted in rapid healing of the femoral artery puncture opening.

The utility model relates to the technical field of medical auxiliary equipment, in particular to an auxiliary operation table for radial artery puncture. The utility model provides an auxiliary operating platform for radial artery puncture, which comprises a telescopic rod frame and the like, the telescopic rod frame is in threaded connection with a bolt, the telescopic rod frame is rotatably connected with paired universal wheels, the telescopic end of the telescopic rod frame is fixedly connected with a placing frame, the placing frame is fixedly connected with a bracket, and the placing frame is fixedly connected with a guide plate. The guide plate is slidably connected with a sliding supporting plate through a damping sleeve, the sliding supporting plate is slidably connected with a connecting plate, the connecting plate is fixedly connected with a silica gel pad, the sliding supporting plate is rotatably connected with a threaded rod, and a fixing assembly is arranged on the sliding supporting plate. According to the auxiliary operation table for radial artery puncture, arms of patients with different body types can be limited and fixed through parts such as the limiting pad and the spring, the situation that the puncture effect and the success rate are affected due to protective hand retraction and other actions caused by pain of the patients in the puncture process is avoided, and the specialty and safety of the auxiliary operation table for radial artery puncture are improved.

The invention is applicable to the technical field of hemostasis devices, and provides a brachial artery puncture compression hemostasis device which comprises a sticking ring, a labor-saving pressurizing mechanism is arranged on one side of the sticking ring, and a self-adaptive fixing mechanism is arranged on the outer side of the sticking ring; according to the brachial artery puncture compression hemostasis device, the labor-saving pressurization mechanism and the self-adaptive fixing mechanism are arranged, the remarkable beneficial effects are achieved, the labor-saving pressurization mechanism comprises an air chamber, a connecting lever, a first supporting arm, a second supporting arm and a piston connecting piece, force amplification during manual operation is achieved by means of the lever principle, and the labor-saving pressurization mechanism is fixed to the air chamber; an operator only needs small force to pull the first supporting arm, the piston connecting piece can be driven to compress air in the air chamber through linkage of the connecting lever and the second supporting arm, high-pressure air is formed, the high-pressure air is efficiently transmitted to the air bag strip through the conveying pipe, the transmission pipe and the connector, and the air bag strip is made to rapidly expand and apply uniform pressure to a brachial artery puncture point.

The invention discloses a forearm fixing device for radial artery puncture, and belongs to the field of medical instruments, the forearm fixing device comprises a finger fixing ring, a wrist bolster, a first fixing band, a fixator and a second fixing band, the finger fixing ring, the first fixing band and the second fixing band are connected to the periphery of the wrist bolster, and the fixator is arranged on the second fixing band; the wrist bolster comprises a fixed type bolster, an adjustable type bolster and a disposable type bolster. According to the device, blood flow can be accurately pressed and blocked, blood splashing is avoided, the hands of medical workers are liberated, and the operation efficiency is improved; according to traditional puncture, two medical workers need to be matched (one worker presses to stop bleeding, and the other worker is connected with a transducer); a single person can complete the whole process operation of pulling out the needle core and connecting the transducer, so that the labor cost is saved; meanwhile, the medical staff does not need to be distracted to maintain the pressing force and can concentrate on precise operation of pipeline connection, the operation time is shortened, and the operation error rate is reduced.