151 results about "Indwelling catheter" patented technology

A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and / or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.

The invention discloses a fixing device with a monitoring function for an internal jugular vein indwelling catheter, and belongs to the technical field of medical equipment.The fixing device comprises a cap body, an adjusting assembly, a dustproof moving part, an installation part, a catheter collecting assembly and a monitoring limiting assembly, one end of the installation part is pasted on a collar, and the monitoring limiting assembly is installed on the surface of the right end of the installation part; the monitoring limiting assemblies are arranged in pairs, the pipe collecting assemblies are arranged between the two monitoring limiting assemblies in pairs, the adjusting assembly is arranged on the head of the human body in a sleeving mode, the outer surface of the adjusting assembly is in transmission connection with dustproof moving parts, the two dustproof moving parts are connected through a connecting rod, and the cap body is arranged on the outer sides of the adjusting assembly and the dustproof moving parts. The problems that in the prior art, due to the fact that a fixing device of the internal jugular vein indwelling catheter cannot be hidden and a connecting piece is exposed in the air for a long time, the disinfection procedure of the connecting piece is complex, time is wasted, and the internal jugular vein indwelling catheter is likely to be seen are solved. And the universality, practicability and convenience of the device are improved.

The arterial indwelling catheter pulling-out device comprises an operation table, a baffle, a mechanical arm, a mounting base, an electric clamping jaw, a first vision module, a first distance measuring sensor and a controller. The two ends of the baffle are connected with the operation table, and a channel for limbs to stretch into is arranged between the baffle and the operation table. One end of the mechanical arm is fixedly connected with the baffle plate; the mounting seat is fixedly connected with the other end of the mechanical arm; a first clamping finger and a second clamping finger are arranged on the electric clamping jaw, and the electric clamping jaw can drive the first clamping finger and the second clamping finger to get close to each other or get away from each other; the first visual module and the electric clamping jaw have the same orientation; the first distance measuring sensor and the electric clamping jaw have the same orientation; the electric clamping jaw, the first visual module and the first distance measuring sensor are all electrically connected with the controller and fixedly connected with the mounting base. The arterial indwelling catheter is beneficial to saving time of medical staff, meanwhile, after the arterial indwelling catheter is pulled out, a puncture point is not prone to bleeding, and the risk of cross infection is reduced.

The invention discloses a chimeric gene engineering nano vesicle for removing pathogenic antibodies as well as a preparation method and application of the chimeric gene engineering nano vesicle, and belongs to the technical field of biology. According to the invention, a stable transfection cell line of a protein A / G gene is constructed through lentiviral particle transfection, so that the protein A and the protein G can be stably expressed. The fusion protein A / G can overcome the defect of weak binding capacity of pure protein A and IgG3, and the adsorption effect of the antibody IgG is improved. The PLGA nanoparticles with relatively uniform particle size are adopted as the core of the target vesicle and are mixed with the engineered cell membrane broken by extrusion to promote self-assembly of the cell membrane and form an extracellular vesicle simulant, so that the stability of the target nano vesicle is improved. The prepared and separated nano vesicles can be applied to in-vivo adsorption and antibody removal, the biological safety is good, and the dialysis indwelling catheter operation risk in the use process of an existing immunoadsorption column and the risks of bleeding, allergy and the like in the treatment process are avoided.

This disclosure generally relates to catheters, methods of enhancing the patency of an intravascular catheter and compositions, methods, devices and kits relating to the infusion of a catheter lock solution into an indwelling catheter. Disclosed compositions, methods, devices and kits aid in diminishing the effects of microbial infection in catheters and occlusion of the catheters. A representative lock solution includes about 10% sodium citrate and about 1.5% benzyl alcohol. The solution has a density approximating the density of blood for retention of the solution in a catheter during the lock period.

The utility model relates to a laser guide puncture indwelling catheter frame device for an ultrasonic probe, which comprises a main body, the main body comprises a non-adjustable frame, an adjusting frame and a rotating shaft, the non-adjustable frame and the adjusting frame are connected through the rotating shaft, the rotating shaft is arranged at the joint of the non-adjustable frame and the adjusting frame, and the non-adjustable frame and the adjusting frame are oppositely arranged. The non-adjustable frame and the adjustable frame are arranged at one end of the short edge of the rectangle to form a rectangle, the non-adjustable frame and the adjustable frame are respectively provided with a small extension section, the device further comprises fixing screws, the fixing screws are installed on the small extension sections, and one end of the non-adjustable frame is provided with a fixing groove. By adopting the laser-guided puncture indwelling catheter frame device for the ultrasonic probe, an ultrasonic machine and a probe of a specific brand are not used, so that a common superficial probe can also be used for puncture operation, and ultrasonic resources of a hospital are perfectly integrated. The device has complete functions and can be perfectly matched with a guide pin frame to easily complete CVC and PICC.

The utility model relates to a urethra traction device, and belongs to the technical field of medical instrument structures. The device comprises a traction frame and a fixer, and is characterized in that the traction frame is formed by sequentially and vertically connecting a first telescopic rod, a second telescopic rod and a third telescopic rod, a first pulley is mounted at one end of the first telescopic rod, the other end of the first telescopic rod is vertically connected with one end of the second telescopic rod, and the other end of the second telescopic rod is vertically connected with the third telescopic rod; the top end of the third telescopic rod is provided with a second pulley, the third telescopic rod is fixedly connected with a fixator through a bridge plate, and the side face of the fixator is provided with a third pulley. The postoperative traction device is scientific and reasonable in structure and easy to operate, can provide continuous and stable traction force for the indwelling catheter needing to be pulled after the surgery, achieves the effects of compression hemostasis and infection prevention, can adjust the length of the telescopic rod, is suitable for patients of various body types, can keep warm for the patients and protect privacy, and solves the problems that no available equipment is available for traction after the urinary surgery, and the traction cost is low. And the discomfort of the patient is increased by using gauze.

The utility model discloses a urine collecting device used for reducing urine stagnation, which comprises a measuring bottle, a urine collecting bag and a connector used for being connected with an indwelling catheter, one end of the measuring bottle is communicated with a double-cavity drainage tube, and the other end of the measuring bottle is connected with a connecting section capable of being communicated with the measuring bottle. The end, away from the measuring bottle, of the connecting section is detachably connected with the urine collecting bag in a communicated mode, a check valve is arranged at the end, away from the measuring bottle, of the double-cavity drainage tube, and the double-cavity drainage tube is connected with the connector through the check valve. The utility model has the advantages that the infection risk is reduced, the measurement accuracy is improved, and the nursing cost is reduced.

A dialysis system having motor driven pressure estimation of fluid within a patient line is disclosed. A peritoneal dialysis (“PD”) system includes a fluid pump and a patient line that fluidly couples the fluid pump to an indwelling catheter leading into a patient's peritoneal cavity. The PD system also includes a motor driver that controls a motor of the fluid pump and transmits an output signal that is indicative of a load on the motor. The PD system further includes a machine learning algorithm that associates data related to output signals from motor drivers with known fluid pressures within patient lines. A processor of the PD system transmits an input signal to activate the motor driver, receives the output signal from the motor driver, and estimates a fluid pressure within the patient line by applying the data from the received output signal to the machine learning algorithm.

The utility model discloses an enteral nutrition delivery and automatic pressure regulator, which relates to the technical field of medical instruments and comprises an infusion pump, an infusion mechanism is arranged outside the infusion pump and comprises a first infusion tube and two accommodating bags, and a pressure sensor is mounted on the outer surface of the first infusion tube. The outer surface of the pressure sensor is communicated with a three-way connecting pipe, and the inner wall of the three-way connecting pipe is communicated with two second infusion pipes. The infusion pump and the infusion mechanism are arranged in a matched mode, the pressure sensor can be installed on the intestinal tract indwelling catheter to monitor the intestinal tract pressure of a patient in real time, the nutrient solution input amount in unit time is adjusted according to the intestinal tract pressure, and therefore the internal intestinal pressure of the patient is controlled; subsequent pipe washing can be carried out without inserting and pulling out a nutrition conveying pipeline, enteral nutrition conveying and pipe washing are matched for use, the switching process is simple and convenient, and the convenience and practicability during use are improved.

The utility model relates to an indwelling catheter fixing device which comprises a buckle assembly and two sets of fixing adhesive tape, the buckle assembly is used for clamping an indwelling catheter, and a first connecting piece and a second connecting piece are arranged on the two sides of the buckle assembly respectively. The first connecting piece is arranged on one set of fixing adhesive tape, the second connecting piece is arranged on the other set of fixing adhesive tape, in the using process, an indwelling catheter is fixedly clamped to the buckle assembly, then the two sets of fixing adhesive tape are arranged on the two sides of the buckle assembly respectively, and the two sets of fixing adhesive tape are detachably connected with the buckle assembly through the first connecting piece and the second connecting piece. The indwelling catheter is fixed at the correct position firmly through the fixing adhesive tape, it is ensured that the indwelling catheter does not slip or move, secondly, in the implementation, the fixing adhesive tape is detachably arranged on the two sides of the buckle assembly through the first connecting piece and the second connecting piece, in the use process, the buckle assembly can be repeatedly used by replacing the fixing adhesive tape, and therefore the use cost is reduced. And the use cost of the indwelling catheter fixing device is greatly reduced.

The utility model relates to a male perineum postoperative protection device which comprises a waistband, an opening and closing type protection cover and a fixing patch. The opening-closing type protective cover is correspondingly and fixedly connected below the front side of the waistband, a limiting groove is formed in the middle of the upper end of the opening-closing type protective cover, and a limiting through hole is formed in the middle of the lower end; the fixing paste is correspondingly and fixedly connected to the lower area of the inner wall of one side of the opening and closing type protective cover. According to the utility model, the perineum can be supported and protected, the indwelling catheter can be externally fixed and protected, the catheter can be fixed between two legs of a patient, the catheter is prevented from moving along with the change of the body position of the patient, the patient can also be prevented from drawing the catheter accidentally, urinary system infection and urethral mucosa injury are reduced, and the safety is improved.

The utility model provides a special magnetic hole towel for extracorporeal membrane oxygenation catheterization, which comprises a first protective layer, a second protective layer and a magnetic hole towel, the first protective layer is provided with an adhesive layer along a first side of the thickness of the first protective layer, and the second protective layer is provided with a first magnetic piece along a second side of the thickness of the first protective layer; the hole towel comprises a first protection layer and a second protection layer, the second protection layer is a hole towel body, the area of the second protection layer is larger than that of the first protection layer, a second magnetic attraction part is arranged on the second protection layer, and magnetic attraction force exists between the second magnetic attraction part and the first magnetic attraction part. The magnetic drape special for the extracorporeal membrane oxygenation indwelling catheter has the advantages of being good in protection effect, not prone to moving, convenient to use and the like.

The utility model relates to the technical field of medical auxiliary appliances, in particular to an infusion pipeline protection treatment towel for a central venous indwelling catheter, which comprises a treatment towel main body, a folding area is arranged in the middle of the treatment towel main body, an upper layer treatment towel is arranged on one side of the folding area, and a lower layer treatment towel is arranged on one side of the folding area. A plurality of connecting bands are installed on one side of the lower-layer treatment towel at equal intervals, the elastic telescopic fixing bands are used in cooperation with the fixing rings, and a transparent window is formed in the upper-layer treatment towel. The fixing firmness of a pipeline can be enhanced through the elastic telescopic fixing belts and the fixing rings, displacement of the pipeline is avoided, the pipeline is effectively fixed in the treatment towel body, and the area where the pipeline is fixed can be observed through the transparent window; medical staff can conveniently observe the connection condition of the pipeline and the smooth condition of the pipeline in time, the treatment effect of the medical staff on a patient is conveniently improved, and adverse events are reduced.

A measurement device may be used with an indwelling catheter. The measurement device can include a housing from which a stylet extends. The housing can include circuitry for receiving measurements from one or more sensors on the stylet. The circuitry may also include a wireless module for wirelessly transmitting the measurements to a patient's electronic medical record or monitoring device.

The utility model provides a femoral artery indwelling catheter fixing band which comprises an elastic waistband capable of being fixed on a human body, two hook-and-loop fasteners are arranged on one side of the elastic waistband, the two hook-and-loop fasteners are fixed to the thigh root of an operation limb in a crossed mode, a pocket structure is arranged outside the crossed portion of the two hook-and-loop fasteners, and a micro catheter is arranged in the pocket structure. A net-shaped breathable belt is arranged at the contact position of the outer ring of the elastic waistband and the wound. According to the utility model, the elastic waistband is adopted for firm fixation, and the micro-catheter is placed in the pocket structure, so that the pollution of the micro-catheter is reduced; the net-shaped breathable belt is arranged at the wound contact part, so that the pressure at the contact part of the elastic bandage and the wound is reduced, the errhysis at the puncture part caused by local bruise and large pressure is reduced, and the comfort of a patient is improved.

The invention relates to the technical field of medical equipment, in particular to a tympanic membrane ventilation pipe system composed of a tympanic membrane ventilation pipe and a tympanic membrane ventilation pipe wrapping layer. The device is suitable for tympanic membrane catheterization. The tympanic membrane ventilation pipe comprises an inner claw, a pipe body and an outer claw, the pipe body is a hollow pipe, the two ends of the pipe body are fixedly connected with one end of the inner claw and one end of the outer claw respectively, and the other ends of the inner claw and the outer claw are free ends; the free end is made of memory alloy, is in a straightened state at the temperature of 0 DEG C and is in a bent state at the temperature of 20-40 DEG C. The structure is newly innovated, and an existing traditional indwelling catheter structure is changed. And the free ends of the inner claw and the outer claw are bent in a normal-temperature state through the memory alloy. The bending state of the inner claw and the outer claw achieves multi-point and internal and external bidirectional fixation, the bending state of the inner claw and the outer claw increases the supporting area and the supporting firmness, multi-point firm fixation of the eardrum in the ear is ensured, internal and external bidirectional fixation is achieved through bidirectional fixation of the inner claw and the outer claw, and the risk that the eardrum falls out of the auditory meatus and falls into the tympanic chamber is thoroughly solved.

The automatic assembling equipment comprises a needleless positive pressure connector conveying mechanism, a communicating pipe conveying mechanism and a needle head assembling mechanism, the communicating pipe conveying mechanism is located between the needleless positive pressure connector conveying mechanism and the needle head assembling mechanism, and gluing mechanisms are arranged on the two sides of the communicating pipe conveying mechanism; automatic machining of the venous indwelling needle is conveniently achieved, so that the machining efficiency is improved, meanwhile, the labor intensity of workers is reduced, and sterile machining of the indwelling needle is guaranteed.

The invention discloses an external dressing for fixing an arteriovenous connecting catheter and a preparation method thereof in the technical field of medical dressings, and provides an external dressing for fixing an arteriovenous connecting catheter and a preparation method thereof. N-isopropylacrylamide, N-hydroxymethyl acrylamide and polyethylene glycol are used for preparing polymer nanofibers; the external dressing for the indwelling catheter, which is prepared by taking 1, 4-phenylenediboronic acid as a bridging structure and connecting tannic acid through a covalent bond, has the characteristic of high adhesion property due to a polyhydroxy structure of the tannic acid, and has the characteristics of antibacterial property, antioxidation and high mechanical activity.

The utility model discloses an anti-seepage abdominal cavity puncture indwelling catheter drainage device which comprises a flexible drainage tube (1), a drainage channel (2) is formed on the inner side of the drainage tube (1), a flexible sheath (3) is arranged on the outer side of the drainage tube (1), the front end of the sheath (3) is closed, a water injection channel (4) is formed between the sheath (3) and the drainage tube (1), a connector (5) is arranged at the rear end of the drainage tube (1), and the rear end of the sheath (3) is fixed with the connector (5). A drainage connector (6) and a water injection connector (7) are arranged on the connector (5), the drainage connector (6) is communicated with the rear end of the drainage channel (2), the water injection connector (7) is communicated with the rear end of the water injection channel (4), a one-way valve (8) is arranged between the water injection connector (7) and the water injection channel (4), and a bag sleeve (19) is arranged in the front area of the sheath (3). The utility model has the advantages that the pain of a patient is not increased during use, the fixation is firm, and the effusion is not easy to seep.

The utility model relates to the field of indwelling catheters, and discloses a waterproof bag for indwelling catheters, which comprises a waterproof bag body, the waterproof bag body is composed of a first protective patch, an application patch, a second protective patch and a double-sided patch, the bottom surface of the first protective patch is provided with a containing groove, the rear side of the inner wall of the containing groove is provided with a first limiting groove, and the inner wall of the first limiting groove is provided with a second limiting groove. A first limiting groove is formed in the top face of the first protective paste, the first limiting groove is communicated with the containing groove, the application is fixed to the top face of the interior of the containing groove, a second limiting groove is formed in the bottom face of the application, the second protective paste and the double-face paste are adhered to the top face and the bottom face of the first protective paste respectively, and the bottom face of the second protective paste is adhered to the top face of the double-face paste. According to the waterproof bag, the contact area between the waterproof bag body and the skin of the patient can be increased through the cooperation of the first protective patch and the double-sided patch, so that the waterproof bag body is stably pasted on the skin of the patient, a catheter is covered under the action of the patch, and the risk that dressing is moist when the patient takes a bath is reduced.

The thoracic cavity closed drainage tube comprises a drainage tube body, a sliding sleeve is arranged in the drainage tube body, an annular groove is formed in the outer side surface of the sliding sleeve, a first annular elastic air bag and a second annular elastic air bag are arranged in the annular groove, and a plurality of annularly-distributed positioning holes are formed in the drainage tube body; the sliding sleeve is connected with a second air pipe pulling the sliding sleeve to move in the drainage pipe, one end of the second air pipe communicates with the second annular elastic air bag, and the other end of the second air pipe extends out of the drainage pipe and is connected with an air pressure detection unit. The side holes can be blocked in the indwelling catheter process, liquid in the chest cavity is prevented from flowing out of the side holes too early, and whether the last side hole smoothly enters the chest cavity or not can be rapidly and visually judged according to the reading of the external air pressure detection unit. The positioning holes are further used for being matched with the positioning holes to form a plurality of flexible positioning convex points to assist the drainage tube in positioning, and great convenience is brought to intubation operation of the drainage tube.

The utility model provides a tube drawing instrument, and belongs to the technical field of medical instruments. The problem that an existing indwelling catheter is inconvenient to pull out is solved. The tube drawing instrument comprises a shell with a tubular inlet end, the top of the inlet end is rotatably connected with a rolling wheel, the bottom of the rolling wheel extends into the inlet end, and a cutter is vertically arranged at the top, close to an inlet, of the inlet end in a penetrating mode. A cutting edge of the cutter is located in the inlet end and can move towards the other side, relative to the cutter, of the inlet end, a receding notch is formed in the position, opposite to the cutter, of the bottom of the inlet end, a sliding part capable of shielding the receding notch is arranged at the position of the receding notch, and the sliding part is connected to the inlet end in an axial sliding mode. The sliding part can move to the position below the bottom face of the inlet end. The tube drawing instrument has the advantage of being convenient to operate.

The present disclosure generally relates to fluid therapy based on patient data, and associated systems, devices, and methods. Embodiments of the present technology can obtain multiple inputs of urine output volume data from a patient without using an indwelling catheter, determine an accumulated volume of urine output data based on the obtained multiple inputs, and adjust the patient's fluid therapy based on the accumulated volume and / or the obtained multiple inputs. Additionally, or alternatively, embodiments of the present technology can include one or more sensors that measure a volume and / or a change in volume of urine within the patient's bladder to determine a urine output rate of the patient, without using an indwelling catheter. Accordingly, embodiments of the present technology can advantageously manage a fluid therapy for patients that refuse an indwelling catheter.

The positioning device comprises the puncture indwelling catheter, the surface of the puncture indwelling catheter is fixedly sleeved with a catheter fixing piece, side plates are arranged on the left side and the right side of the catheter fixing piece correspondingly, and fixing holes are formed in the surfaces of the side plates; a pair of adjusting supports is symmetrically installed on the left side and the right side of the catheter fixing piece, and the whole adjusting supports are in a triangular shape and protrude towards the outer side of the catheter fixing piece. By arranging the adjusting bracket, the fixed plate, the movable plate and the fixed notch, when the tightness of a suture needs to be adjusted, a medical worker can hold the upper part of the adjusting bracket and adjust the position of the movable plate downwards or upwards, so that the movable plate slides on the surface of the catheter fixing sheet; therefore, the protruding amplitude of the suture after being extruded by the fillet on the outer side of the fixing plate is controlled, the tightness of the suture is adjusted, the problems of pain and the like possibly caused by the fact that the suture pulls the skin can be avoided, and the use safety of the puncture indwelling catheter is further improved.

The invention relates to the technical field of medical auxiliary instruments, in particular to a PICC (Peripherally Inserted Central Catheter) compression auxiliary device. Comprising a PICC indwelling catheter mechanism, a rotating mechanism, an elastic mechanism and a clamping mechanism, the rotating mechanism is rotationally connected to the right side of the outer surface of the PICC indwelling catheter mechanism, the elastic mechanism and the clamping mechanism are movably installed on the left side of the outer surface of the PICC indwelling catheter mechanism through the rotating mechanism, an elastic band is movably installed in the elastic mechanism, and one side of the surface of the rotating mechanism is connected with an inserting rod; the elastic band rotates in the elastic mechanism through the inserting rod, a limiting groove is formed in the clamping mechanism, and the elastic band rotationally extends into the clamping mechanism and is movably clamped to the surface of the limiting groove. The surface of the elastic band is clamped through the arranged limiting groove, the rotating gear is rotated again, the inserting rod is made to rotate, the lantern ring is driven to rotate on the inner wall of the clamping ring, and the opening position of the clamping ring and the opening position of the positioning groove are blocked, so that the elastic band can be effectively clamped in the clamping groove, and PICC catheterization compression operation can be directly and effectively conducted on a patient.

The utility model discloses a visible upper arm central venous indwelling catheter pressurization hemostasis device which comprises a left pasting area, a middle compression area and a right pasting area, the middle compression area comprises an outer ring transparent air bag and an inner ring transparent water bag, a needle penetrating window is arranged on the lower half portion of the inner ring transparent water bag, an elastic gasket is arranged on the periphery of the bottom side of the needle penetrating window, and the right pasting area is arranged on the right side of the right pasting area. A first connecting pipe and a second connecting pipe are connected to the lower portion of the middle compression area, the first connecting pipe is upwards communicated with the outer-ring transparent air bag and downwards communicated with the inflation head, and the second connecting pipe is upwards communicated with the inner-ring transparent water bag and downwards communicated with the water injection opening. While effective pressurization and cold compress are achieved, the hemostasis effect and the skin tissue condition at the pressurization position can be visually observed.

The present disclosure generally relates to fluid therapy based on patient data, and associated systems, devices, and methods. Embodiments of the present technology can obtain multiple inputs of urine output volume data from a patient without using an indwelling catheter, determine an accumulated volume of urine output data based on the obtained multiple inputs, and adjust the patient's fluid therapy based on the accumulated volume and / or the obtained multiple inputs. Additionally, or alternatively, embodiments of the present technology can include one or more sensors that measure a volume and / or a change in volume of urine within the patient's bladder to determine a urine output rate of the patient, without using an indwelling catheter. Accordingly, embodiments of the present technology can advantageously manage a fluid therapy for patients that refuse an indwelling catheter.

The utility model relates to a PICC catheter indwelling auxiliary cart which comprises a cart body, the cart body comprises a table top, a storage rack is arranged above the table top, guardrails are arranged on the periphery of the table top, supporting legs are arranged below the table top, a storage device is arranged at the bottom of the table top, a connecting piece is arranged on one side of the table top through bolts, and the connecting piece is hinged to an arm supporting device. The arm supporting device comprises a supporting plate, a soft cushion and a lifting supporting rod, the bottom of the lifting supporting rod is hinged to the connecting piece through a first rotary knob, the lifting supporting rod is hinged to the supporting plate through a second rotary knob, the soft cushion is connected with the supporting plate through a bolt, the lifting supporting rod can freely adjust the height of the supporting plate vertically, and the supporting plate can move. According to the utility model, the support function can be provided for meeting the requirements of arms of patients with different body positions and different heights, the fatigue of the patients is relieved, the comfort is improved, the pollution caused by the physical strength of the patients in the disinfection process is avoided, and the indwelling catheter requirements in different environments are met.

The utility model discloses a portable constant-temperature constant-pressure invasive arterial pressure monitoring device for preloading heparin saline water. The portable constant-temperature constant-pressure invasive arterial pressure monitoring device comprises a device main body and a disposable sensor consumable for preloading the heparin saline water. The device body is small in size, can be hung on an infusion support for use, and is good in portability. After the improved sensor consumable is connected with an artery indwelling catheter of a patient, an artery pulse signal of the patient can be converted into pressure data to be displayed on a main body screen. A pressure control device and a temperature control device are further arranged in the main body, and a nurse can control the pressure control device and the temperature control device through the touch display screen, so that the pressure and the temperature of liquid in the saline bag are controlled, and constant temperature and constant pressure are kept. A nurse does not need to repeatedly adjust pressure and temperature, and a patient does not feel cold and uncomfortable when flushing the pipeline. According to the device, heparin, normal saline and a traditional sensor are integrally designed, so that the time consumed for nurse article preparation and operation is shortened, the labor cost is saved, and meanwhile, the time is bought for rescuing and transferring a patient.