155 results about "Artery puncture" patented technology

The invention discloses a femoral artery paracentesis post-operation pressure-controlled hemostasis device and a monitoring intelligent control system thereof, and relates to the technical field of medical apparatuses and instruments, and the femoral artery paracentesis post-operation pressure-controlled hemostasis device comprises an assembly panel; the air bags are arranged at the bottom of the assembly panel; the air pump is arranged at the top of the assembly panel and used for controlling the air bags to contract; the control piece is arranged at the top of the assembly panel and used for controlling the air pump; the Doppler probe is arranged at the bottom of the assembly panel and used for detecting the blood flow speed of the far end of a puncture point, the hemostasis safety and efficiency are remarkably improved through multi-mode intelligent control and a real-time feedback mechanism, the vein area is accurately recognized and avoided in combination with ultrasonic and infrared spectrum analysis of the artery positioning module, the thrombus forming probability is effectively reduced, and the blood flow speed of the far end of the puncture point is detected. The pressure-time optimization model dynamically shortens the compression time (target 3 hours) based on the real-time hemostatic effect, and improves the comfort of the patient while ensuring the hemostatic effect.

The invention belongs to the technical field of radial artery compression hemostats, and particularly relates to a radial artery hemostasis method based on real-time pulse analysis and a hemostat control system. A slow and continuously changing force is applied to a radial artery puncture opening through the pressure applying module, meanwhile, the pulse detection module transmits a pulse forced feedback signal of the puncture opening to the main control module in real time, and the main control module analyzes and processes the received feedback signal in real time and judges the current hemostatic state of the radial artery. And on this basis, the pressure applying module is controlled to adjust the pressure. The method is characterized in that the relation between pulse forced feedback signals and the forced state of the radial artery is obtained through clinical tests according to the difference of the pulse feedback signals of the radial artery in different pressed states, and therefore the pressure is stabilized in the state that the blood flow of the radial artery is stable and a puncture opening does not bleeding. According to the scheme, the individual difference between different patients can be overcome, the compression hemostasis strength is adjusted in a self-adaptive mode, and the occurrence rate of related complications such as radial artery occlusion is effectively reduced.

The invention provides an auxiliary device for arteriopuncture positioning, and relates to the technical field of arteriopuncture, the auxiliary device for arteriopuncture positioning comprises a mounting part and an ultrasonic probe body, a patient places an arm on a placing plate, and the placing plate is adjusted to a proper angle through an adjusting part, so that the comfort of the patient is improved; the arm of a patient is fixed to the placing plate through the fixing part, the fixing plate is driven by the adjusting part to move downwards, the ultrasonic probe body can move along with the placing plate until the ultrasonic probe body makes contact with the arm of the patient, the driving part can drive the placing plate to horizontally move, and when the placing plate horizontally moves, the arm can move along with the placing plate; when the arm moves, the ultrasonic probe body can scan the artery of the arm and adjust the position of the puncture part, and a medical worker can puncture the puncture needle into the artery through the puncture part, so that puncture work can be conveniently completed, puncture errors of the medical worker are effectively prevented, and the success rate of puncture is increased.

The air pressure type radial artery hemostat comprises a hemostat body which is detachably arranged on the wrist of a patient and provided with a plurality of compression air bags, and the multiple compression air bags are provided with puncture mark points which are arranged in a connected mode so as to be matched with the radial artery puncture position of the patient. The hemostat body is provided with inflation ports communicated with the multiple compression air bags, the inflation ports are communicated with a control air valve through an air pipe, the control air valve has multiple quantitative deflation modes for automatic pressure reduction, and the end, away from the air pipe, of the control air valve is connected with an inflation device. A pressure visible structure is arranged between the control air valve and the air pipe to reflect the hemostasis pressure applied to the wound of the patient by the multiple compression air bags. According to the radial artery compression hemostat, initial pressure applied to a wound of a patient can be visually and quantitatively displayed, the applied pressure can be automatically adjusted according to the compression hemostasis condition of the patient, meanwhile, compared with a traditional radial artery compression hemostat, the manufacturing cost is not remarkably increased, and the use requirements of clinicians are met.

The invention provides a radial artery interventional puncture operation fixing and pressing structure, and belongs to the field of medical instruments. Comprising a wearable positioning mechanism and a thread adjusting type compression mechanism, a first hollow column which is installed in the component fixing cavity through a bearing and can rotate and a limiting lantern ring which is arranged on the outer circumferential face of the first hollow column in a sleeving mode and can be attracted to the top of the annular permanent magnet are arranged in the thread adjusting type pressing mechanism, and when the first hollow column rotates, the limiting lantern ring is attracted to the top of the annular permanent magnet. The threaded moving plate can move longitudinally; and the arc-shaped pressing plate is located under the wearable positioning mechanism and can move longitudinally along with the threaded moving plate. The device can be worn at the radial artery puncture position of a patient and has the advantage of being convenient and fast to use, meanwhile, medical staff can adjust the compression intensity on the puncture point according to the actual situation of the patient at the puncture position, and therefore the effective working range of the device for different crowds and physiques is widened, and the safety degree of device use is improved.

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 auxiliary fixing device comprises a supporting frame, a two-way threaded rod is rotationally installed on the inner wall of the supporting frame, guide rods are arranged at the two ends of the two-way threaded rod, and the guide rods are fixedly installed on the inner wall of the supporting frame; the two-way threaded rod rotationally penetrates through the supporting frame and is fixedly connected with an output shaft of a motor, the motor is fixedly installed on the surface of the supporting frame, the outer sides of the two ends of the two-way threaded rod are sleeved with adjusting blocks in a threaded mode correspondingly, the adjusting blocks slidably sleeve the outer sides of the guide rods correspondingly, and sliding grooves are formed in the two sides of the supporting frame correspondingly; one end of the adjusting block is fixedly connected with the fixing bandage, the other end of the adjusting block is fixedly connected with the locking assembly through the connecting plate, and the locking assembly is used for fixing the fixing bandage. The problems that in the prior art, fixation is not firm, adjustment cannot be achieved, comfort is poor, and observation is inconvenient are solved.

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 utility model relates to a compression hemostasis device after radial artery paracentesis, which comprises a C-shaped arm, one end of the C-shaped arm is provided with a mounting column, the mounting column penetrates through the C-shaped arm, the end part of the mounting column is provided with a pressure plate, the mounting column is provided with an adjusting mechanism, and the adjusting mechanism is used for driving the pressure plate to adjust along the length direction of the mounting column so as to provide compression force. According to the compression hemostasis device, the compression force can be provided for the punctured position of the wrist of a patient through the clamping effect provided by the pressing disc and the end portion of the side, away from the installation column, of the C-shaped arm, then the hemostasis effect is achieved, and compared with a traditional hemostasis mode that a binding belt is used for tightening, the compression hemostasis device is in a two-point clamping mode and is convenient to use. The whole wrist cannot be excessively tightened, blood circulation of the wrist cannot be affected, the phenomenon of local swelling pain is avoided, the comfort of a patient is improved, meanwhile, the position of the pressing disc can be finely adjusted according to a specific puncture point, so that the pressing disc can be aligned to the puncture point, effective pressing force is provided, and the universality is high.

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 belongs to the technical field of medical instruments, and discloses a connecting pipe fixing clamp for arteriopuncture, which comprises a mounting belt and a mounting seat, the mounting seat is fixedly connected with the mounting belt, the mounting belt is fixedly connected with a buffer layer, two ends of the mounting belt are respectively and fixedly connected with a magic tape A surface and a magic tape B surface, and the mounting belt is fixed through the magic tape A surface and the magic tape B surface. A mounting groove is formed in the mounting seat, the mounting seat is rotatably connected with a pressing plate, the pressing plate is clamped with the mounting groove, the mounting seat is fixedly connected with a sliding seat, the mounting seat is slidably connected with a clamping block through the sliding seat, a tension spring is arranged between the clamping block and the sliding seat, and the clamping block is used for fixing the pressing plate; the problem that in the prior art, when a connecting pipe passage of an artery puncture needle is replaced, medical staff need to use forceps to continuously exert force to seal a connecting pipe, and time and labor are wasted is solved.

The utility model relates to the field of medical equipment, in particular to an artery puncture needle which comprises a syringe barrel, a plunger and a puncture needle, the hollow puncture needle is arranged in the plunger, the front end of the syringe barrel is connected with a needle sleeve, and the rear end of the syringe barrel is provided with a sealing device capable of being opened and closed. A branch tube is arranged at the front end of the syringe barrel, a sliding cavity, a sliding rod, a spring and an indicating ring are arranged in the branch tube, and whether puncture succeeds and enters an artery blood vessel can be judged according to whether the indicating ring slides out of the indicating cavity. A side hole is formed in the middle of the puncture needle, so that contrast agent injection and needle point observation are facilitated. The needle point of the puncture needle is bent towards the needle eye to prevent puncture of the opposite-side blood vessel wall. The sealing device adopts a silica gel sealing valve, so that the leakproofness during puncture is ensured, and the subsequent operation is facilitated. A push handle is arranged at the tail of the plunger to facilitate injection of contrast agents. A bolt column is arranged on the outer wall of the syringe barrel, a fixing groove is formed in the outer side of the plunger, the position of the plunger can be fixed according to the contrast agent amount, and puncture and contrast agent injection are facilitated. The artery puncture needle is convenient to use, good in sealing performance, clean and sanitary, whether puncture succeeds or not can be accurately judged, and unnecessary vascular injury is reduced.

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 discloses a compression hemostasis device used after femoral artery paracentesis, and relates to the technical field of medical instruments, the compression hemostasis device comprises a compression cylinder, a compression air bag, an elastic band and a sterile dressing, and the compression cylinder is provided with a channel hole in the axial direction; the compression air bag is detachably arranged in the channel hole; the elastic band is connected to the two symmetrical sides of the non-compression head end of the compression cylinder. And the sterile dressing is adhered to one end of the compression head of the compression cylinder. The compression air bag is arranged in the compression cylinder, and the compression air bag can be suitable for the shape of the surface to be compressed after being inflated to perform fitting compression, so that the uniformity of compression stress is improved, the problems of excessive local compression and insufficient local compression force are avoided, and the hemostatic effect is effectively improved.

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.

The invention discloses a timing alarm and timing deflation alarm device for monitoring finger movement through upper limb braking after coronary intervention, and relates to the technical field of medical auxiliary instruments, the timing alarm and timing deflation alarm device comprises a supporting seat, an adjusting part, a pinching part and an alarm part, one side of the supporting seat is fixedly connected with the adjusting part, the pinching part is downwards arranged on the upper side of the supporting seat of the adjusting part, and the alarm part is fixedly connected with the adjusting part. The adjusting part is provided with an alarm part in the upper side direction of the supporting seat, the pinching part is matched with the alarm part, and the alarm part comprises a delay feedback mechanism; and an alarm is given when the patient does not perform the grasping action as required, so that the patient is promoted to complete the grasping action, and thrombus after radial artery paracentesis is avoided.

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.

The utility model relates to the technical field of puncture, in particular to an ultrasound enhancement and X-ray dual development arterial puncture trocar, a hose is made of X-ray impermeable polymer, a needle core is arranged in the hose in a sliding mode, one end of the needle core penetrates through a hose pushing composite portion and extends to the outside, and the end of the needle core is connected with a blood return portion. A blade surface is arranged at the end part, far away from the hose propelling composite part, of the needle core, and an ultrasonic development enhancement region (corrugated spiral groove section) is arranged close to the blade surface; under the guidance of ultrasonic waves, the corrugated spiral groove section on the needle core can enhance development, ultrasonic development positioning is facilitated, and whether the needle head enters the artery or not can be judged more accurately; the hose is made of an X-ray-impermeable polymer material, and if suspected or confirmed fracture occurs, positioning and grabbing can be performed through X-ray fluoroscopy; the blood return part is provided with a detachable tampon, a pressure diaphragm is arranged in a hollow structure of the blood return part to sense arterial pulsation, and when the blood return part is filled with blood, the pulsation of the blood can be reflected through the change of a water column.