171 results about "Internal fistula" patented technology

The invention relates to a dynamic monitoring and compression fixation device for arteriovenous vessels, comprising a hemodialysis strap for binding up an internal fistula puncture point and an oozing sensor for detecting oozing quantity of the internal fistula puncture point, the oozing sensor is disposed in the hemodialysis strap, the hemodialysis strap is also provided with a timing alarm for timing an alarming uses, and the timing alarm is disposed on the hemodialysis strap and may be electrically connected with the oozing sensor; the timing alarm can time the binding of the hemodialysis strap, an oozing volume threshold of internal fistula puncture point is preset in the timing alarm, and the timing alarm outputs oozing alarm information if the oozing sensor detects that oozing volume of the internal fistula puncture point matches with the oozing volume threshold of internal fistula puncture point. The dynamic monitoring and compression fixation device for arteriovenous vessels is compact in structure and convenient to use, allows effectively quantitated time for using a bandage on internal fistula, can provide timely prevention for blood oozing of the internal fistula and prolong the service time of the internal fistula, can effectively prevent complications, and is safe and reliable.

The invention relates to an ultrasonic Doppler effect based real-time fistula thrombus detection system, a real-time fistula thrombus detection device and a fistula thrombus blood flow velocity detection method. The real-time fistula thrombus detection system comprises a master control module, an ultrasonic probe driving module, a dual-mode ultrasonic probe module, a display module, a wireless transmission module and a storage module. The display module, the storage module, the ultrasonic probe driving module and the wireless transmission module are directly connected with the master control module, the ultrasonic probe driving module is further connected with the dual-mode ultrasonic probe module, the wireless transmission module is used for remote data transmission through wireless signals, and the power supply module supplies power to each module. By different placement ways and two different operating modes of an ultrasonic probe, the problem of difficulty in determination of a Doppler angle in practical application to blood flow velocity measurement is effectively eliminated, and the problem of flow velocity gradient fuzziness is solved.

The invention discloses a multifunctional blood vessel compression hemostasis device which comprises a bandage, an air cushion, a liquid sensor, sponge, a connecting pipe, an injection pipe, an injector, an air inlet pipe, a timer, snap ring and a warner. The multifunctional blood vessel compression hemostasis device is ingenious in structure, powerful in function and simple to operate; by using the device, effective dot oppression can be performed on a patient's blood vessel puncture part, local compression force is added under the same pressure, and a compression hemostasis effect is improved; pressure applied to a puncture point can further be measured and controlled accurately, pressure values are adjusted according to different patients, a sound alarm is given against local bleeding, complications such as bleeding of the puncture position, far-end limb ischemia and internal fistula blockage are avoided, and the patients' prognosis is improved. By using the device, local compression time can be preset, the complications caused by improper compression time are avoided, and medical workers' working efficiency is improved.

The invention discloses a multi-temperature-regulation massaging device for hemodialysis. The multi-temperature-regulation massaging device for hemodialysis has powerful functions and can be used for effectively heating and keeping heat of a punctured blood vessel of a hemodialysis patient and promoting hemangiectasis, and the puncturing success rate is improved; the punctured blood vessel of the patient can be massaged through simple operation, edema liquid of a punctured part is eliminated and the blood vessel is exposed, so that the puncturing success rate is improved and pains of the patient are alleviated. The hematoma of the punctured part of the patient can also be subjected to cooling treatment and blood capillaries are retracted through cold application, so that partial hyperemia and bleeding are alleviated and the limitation of edema is facilitated. The device is used for carrying out hot application and massaging on the punctured parts including internal fistula and the like of the patient in combination with corresponding medicines, and partial blood circulation can be facilitated; the permeability of tissue cells is improved and the medicines can be easily absorbed; the elimination of the hematoma is accelerated and the absorption of the hematoma is promoted; damaged tissues are stimulated to regenerate and scars are softened; an vascular access of the patient is effectively protected and the living quality of the patient is improved.

The invention discloses an arteriovenous fistula marking, puncturing and fixing device. The device comprises a supporting plate, a placing groove, a spring, a clamping plate, a soft cushion, a guide plate and a placement box. The arteriovenous fistula marking, puncturing and fixing device is ingenious in structure, powerful in function and easy to operate. Firstly, the arm of a patient is fixed, so that the vein part of the patient is exposed to the outside to be fixed, then medical staff then use a B-ultrasonic machine to observe and evaluate shapes and lumen widths of arteriovenous vessels of the vein part of the patient and judge whether blood vessel branches and arteries are accompanied or not and whether available blood vessel lengths exist or not, and then puncture point marking is conducted on the inner side of the arm of the patient through a marking pen and a graduated scale, so that internal fistula puncture complications are effectively reduced, the pain of the patient is effectively reduced, and the dialysis quality is improved.

The invention discloses a traditional Chinese medicine solution for internal fistula care, which is prepared from the following medicinal materials in parts by weight: 30g of angelica, 30g of peach kernel, 30g of hemlock parsley, 30g of radix achyranthis bidentatae, 20g of cassia twig, 20g of safflower, 10g of manyleaf paris rhizome and 10g of Ligustrum sinense. The preparation method comprises the following steps: weighing the medicinal materials, putting into a container, adding 8 times of water, decocting for 1.5 hours, and filtering; adding 6 times of water into the filter residue, decocting for 1 hour, and filtering; and merging the filtrates, concentrating, drying and encapsulating. The clinical experiment proves that the solution can achieve the obvious effect of internal fistula care by selecting the appropriate medicinal materials and proportioning thereof, and has the advantages of high safety and no toxic or side effect.

The invention relates to a multifunctional wristband for monitoring an internal arteriovenous fistula of a hemodialysis patient. The multifunctional wristband for monitoring the internal arteriovenousfistula of the hemodialysis patient comprises a wrist strap, wherein an internal fistula monitoring module and a temperature sensor are located on a skin side of the wrist strap, the internal fistulamonitoring module comprises an internal fistula natural blood flow volume monitor, a vascular wall thickness monitoring module and an internal fistula tremor and internal fistula pulsation monitoringmodule, and an alarming device, a display, a wireless communication module and a controller are arranged on the wrist strap. The multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can detect the natural blood flow volume, tremors and pulsation of the internal fistula, the vascular wall thickness and the body temperature of the hemodialysis patient, and can protect the internal fistula from trauma at the same time to prevent pseudoaneurysm, so that the internal fistula is subjected to good monitoring, protection and remote management, and the life of a lifeline (vascular access) is prolonged; the multifunctional wristband for monitoring the internal arteriovenous fistula of the hemodialysis patient can give different alarming prompts according to different situations to remind the patient of timely medical treatment, so that timely rescue of the internal fistula is facilitated; and an elastic buffering layer is arranged on the innersurface of the wrist strap, and has a buffering function when the internal fistula part is under external attack, and then damage to functions of the internal fistula and local massive hemorrhage areprevented, so that the elastic buffering layer plays a role in effectively protecting the internal fistula.

The present invention discloses a wearable internal arteriovenous fistula blood flow monitoring device and a system thereof. The wearable internal arteriovenous fistula blood flow monitoring device ischaracterized by comprising a main body outer shell, a fixing bandage, a contact cushion layer, a display screen, control keys, a buzzer alarm, an ultrasonic signal source, an ultrasonic transmitter,an ultrasonic receiver, a pulse signal receiver, a microprocessor chip, a digital-to-analog converter, a patch piezoelectric film sensor, a noise reducer, an amplifier and a band-pass filter. The device realizes monitor of velocity of blood flow after a surgery of an internal arteriovenous fistula part when carried about, monitors the velocity of the blood flow in real time, can master the bloodflow condition of the internal arteriovenous fistula in real time, and when the internal arteriovenous fistula has a thrombus blockage risk, can find the thrombus blockage risk and take clear measuresat the first time; and turbulence at the internal arteriovenous fistula part is accurately collected to form a waveform and whether the internal arteriovenous fistula is unblocked or not is judged through the waveform.

The invention provides a disposable hemodialysis nursing bag, which consists of a hemodialysis catheter log-in disposal nursing bag, a hemodialysis catheter log-out disposal nursing bag and an internal fistula puncture nursing bag, wherein the hemodialysis catheter log-in disposal nursing bag and the hemodialysis catheter log-out disposal nursing bag are formed by combining a disposable bed patch pocket, rubber gloves, non-woven fabric treatment towels, iodophor gauze, alcohol gauze, alcohol cotton balls, sterile gauze, needle cylinders, sterile paste, adhesive tapes, catheter caps, disposable treatment discs and an external packaging bag; the internal fistula puncture nursing bag is formed by combining a disposable bed patch pocket, a non-woven fabric treatment towel, rubber gloves, iodophor cotton swabs, dried cotton balls, sterile paste, adhesive tapes, disposable treatment discs and an external packaging bag; and the objects in the three nursing bags are stacked in the respective external packaging bags, are sealed integrally and are sterilized by ethylene oxide. In the disposable hemodialysis nursing bag, all objects are sterilized integrally and can be used while being torn, so that the sterile state in the operating process is ensured, and the chance of cross inflection is reduced; and the objects are not needed to be disinfected independently periodically, so labor and material resources are saved, the using cost is reduced, and the disposable hemodialysis nursing bag is easy, convenient and safe to operate.

The invention discloses a hemodialysis internal fistula training device. Through the arrangement of a first servo electric cylinder and a second servo electric cylinder, lifting-falling adjustment ona supporting plate can be achieved, the arm of a patient is conveniently lifted, and edemas of the limbs can be reduced; through the arrangement of a first sliding groove, a second sliding groove, a first sliding strip and a second sliding strip, the stability of the supporting plate in the process of lifting and falling can be improved; through the arrangement of a water storage bag, the comfortof elbow support can be conveniently improved; through the arrangement of a ball screw, a screw nut, a connecting block and a forward and reverse motor, horizontal adjustment of a sliding plate can beachieved, and the patient can be conveniently subjected to different kinds of training; through the arrangement of a support, an elastic rope and a gripping ball, the patient can be subjected to gripstrength training; through the arrangement of a finger strength training apparatus, the patient can be subjected to finger strength training; through the arrangement of a second slide rail, a slidingblock, a second spring and a pushing plate, the patient can be subjected to wrist training.

The invention discloses a model for simulating internal arteriovenous fistula vascular puncture. The model includes a storage box, wherein a simulation arm is arranged in the storage box; a simulatedarteriovenous blood fistula is connected between the simulated vein blood vessel and the simulated artery blood vessel; a cavity is formed in the bottom of the inner wall of the storage box; a bidirection screw rod is rotatably connected to the left side and the right side of the inner wall of the cavity through bearings; a fixing rod is fixedly connected to the front side, close to the top end, of the stretching-out mechanism, containing cavities are formed in the left side and the right side, close to the top of the storage box, of the storage box; the end, close to the push rod, of the pushing-out mechanism is hinged to the rear end of the push rod. According to the internal arteriovenous fistula puncture model, through cooperation of the structures, the problems that when the internalarteriovenous fistula puncture model is used, a puncture instrument is not easy to use, and the puncture process is not easy to record are solved; and meanwhile, after use, the internal arteriovenousfistula puncture model, the puncture instrument and the recording instrument are not easy to store and tidy, and inconvenience is brought to use.

The present invention discloses a simulating training device for internal arteriovenous fistula puncture of hemodialysis patient. The simulating training device comprises a base and a placement plate.A protective shell is fixedly connected to the lower portion of the base, a water tank is fixedly connected to the upper portion of the base, a variable-frequency water pump is fixedly connected to the interior of the protective shell, and steering wheels are arranged on the left side and the right side of the protective shell; a water inlet is fixedly connected to the left side of the base, a water outlet is fixedly connected to the right side of the base, a filter screen is arranged in the water tank, a supporting block is arranged below the filter screen, and a fixing block is arranged above the filter screen. Compared with an existing common puncture simulation training device in the prior art, the simulation training device for simulating internal arteriovenous fistula puncture of the hemodialysis patient has the advantages that irregular simulation limbs can be fixed conveniently in the using process, inaccurate fixation is not likely to be caused in the using process, light canbe adjusted conveniently, meanwhile, an alarm can be given to operation very well, and the training device is simple in structure and convenient to use, and further improves training efficiency.

The invention discloses a method for measuring the recirculation rate and/or the recirculation volume of a dialyzing access, comprising the following steps of: injecting a contrast agent on the dialyzing access which comprises a dialyzing vessel/internal fistula access and a dialyzator pipeline; extracting an ultrasonic dialyzing echo signal or a Doppler signal of the contrast agent on the dialyzing access to generate a corresponding time intensity curve; and calculating the recirculation rate and/or the recirculation volume of the dialyzing access according to the parameters of a time intensity curve of an ultrasonic dialyzing echo signal or the Doppler signal. Accordingly, the invention also provides a system for measuring the recirculation rate and/or the recirculation volume of the dialyzing access, and therefore, the invention can be used for quickly and accurately measuring the recirculation rate and/or the recirculation volume of the dialyzing access in large quantity.

The invention provides an internal arteriovenous fistula functional exercise instrument and a control method. The functional exercise instrument comprises a cuff, a processor, an air pressure sensor, an inflation pump and an inflation tube; the cuff is provided with an inflation layer; the gas tube is connected between the inflation layer and an air nozzle of the inflation pump, so that the inflation layer, the inflation tube and the air nozzle of the inflation pump are co-formed an airflow passage; an output end of the air pressure sensor is electrically connected with an air pressure input end of the processor; the inflation control end of the processor is electrically connected with an inflation control end of the inflation pump. The cuff can be tied in a position, close to armpit, of an arm of a patient, and the inflation is started to inflate to the inflation layer of the cuff, the inflated cuff is pressed on blood vessels in the arm, so as to promote venous dilatation and internal fistula maturity. The exercise instrument is easy to operate, people can do exercises by self without any help of others, especially suitable for patients with poor blood vessel conditions, as well as the elderly, relatively poor stamina or relatively poor activity, and helps the patients to finish the functional exercise after the operation for the internal arteriovenous fistula.

The invention discloses an internal fistula side limb warm-keeping fixing device for a hemodialysis patient. The device comprises a fixing plate, wherein sponge cushion blocks are fixed to the front side and the rear side of the top end of the fixing plate, a transmission mechanism is arranged in the fixing plate, a rotating mechanism is arranged at the top end of the fixing plate, a protection mechanism is arranged at the top end of the rotating mechanism, and locking mechanisms are arranged on the front side and the rear side of the rotating mechanism. Usability and practicability are improved; a wound can be conveniently applied with medicines and cleaned, the operation is easy and convenient during fixing, and the rehabilitation rate of a patient is increased; and the arm is placed more comfortably under the action of breathable cushion blocks and the sponge cushion blocks, and the problem that when the arm is fixed, bandages or gauzes are mostly adopted to fix an internal fistula,so that the affected part is very inconvenient to be subjected to medicine application or clean, and the gauzes need to be detached for cleaning can be solved.

The invention relates to the field of medical instruments, in particular to a snap-fit fixture for an arm internal fistula dialysis tube fixture, comprising a protective hood matched with the arm in shape and at least two clamping components; each clamping component includes a first clamp block and a second clamp block which are releasably connected; the first clamp block is provided with a firstclamp groove matched with the dialytic tube; the second clamp block is provided with a second clamp groove matched with the first clamp groove; after the first clamp and the second clamp block are connected and the first clamp channel and the second clamp channel are fastened, a clamping passage to clamp a dialytic tube is formed, the clamping passage is in length width direction of an arm; the second clamp block is releasably connected with the protective cover; as the clamping channel involves long length of the dialytic tube clamped, the dialytic tube of great length is fixed to the arm, the dialytic tube is not easily disconnected with the arm, no deformation rarely occurs, and smooth flowing of blood in the blood dialysis is guaranteed.

The invention discloses an adjustable internal arteriovenous fistula protector which comprises an angle adjusting supporting device and an internal fistula protection sleeve. The angle adjusting supporting device comprises a base, a supporting plate and a supporting plate, one end of the supporting plate is hinged to one end of the base, one end of the supporting plate is hinged to the other end of the base, and the supporting plate can support the bottom face of the supporting plate through the free end of the supporting plate. The internal fistula protection sleeve comprises a U-shaped supporting groove, hollowed gridding cloth is fixedly arranged on an upper gap of the U-shaped supporting groove, a zipper for opening and closing the hollowed gridding cloth is arranged in the middle of the hollowed gridding cloth, and hook and loop fasteners are arranged on the upper surface of the supporting plate and the lower end of the U-shaped supporting groove. The angle can be adjusted; the adjustable internal arteriovenous fistula protector is hung on the breast to protect an operation limb when a patient gets off the bed to stand, the limb on the other side can freely move, and limb swelling caused by ptosis is avoided. A layer of cotton cushion middle zipper is arranged at the limb containing position, a warmth keeping function is achieved, and meanwhile, the accessory function of the postoperative limb can be observed conveniently.

The invention discloses a portable special tourniquet for internal fistula. The portable special tourniquet comprises a tourniquet body; a pressing airbag with a one-way valve is arranged on the tourniquet body and at the position of a puncture point of an arm of a patient, and is connected with a pressure gage; the one-way valve is connected with a pressing device for pressing the pressing airbag; the pressing airbag is positioned on one side surface, far away from the skin of a patient, of the tourniquet body; a soft cushion layer is detachably connected onto the tourniquet body and at a position of a puncture point of the arm of the patient; a placing hole for allowing a bleeding stopping cotton ball to be plugged in and fixed is arranged on the soft cushion layer; the pressing airbag is connected with a deflating airbag positioned outside the tourniquet body; the pressing airbag is communicated with the deflating airbag by an adjusting valve; a first seal cover is screwed on the deflating airbag; and the interior space of the deflating airbag is not larger than that of the pressing airbag by 1/8. The portable special tourniquet has the characteristics of providing quantitativepressure for the patient, adjusting pressure, and being stable and convenient.

The invention discloses an intelligent internal fistula bandage. The intelligent internal fistula bandage comprises a bandage body, a pressure sensor, a blooding sensor, a controller and a touch screen, wherein the pressure sensor and the blooding sensor are arranged on a first surface and are connected with the controller electrically; the touch screen is arranged on a second surface and is connected with the controller electrically; the controller comprises a memory and a processor; an executable code is stored in the memory; and the executable code can complete the following steps through execution by the processor: obtaining the current pressure value of the patient through the touch screen, creating a pressure adjusting scheme for the patient according to the pressure value and displaying the pressure value in current hemostasis stage and the time remaining through the touch screen, and specifically, the pressure adjusting scheme includes a reference pressure value and time of duration for each hemostasis phase of the patient. According to the bandage, more accurate and more standard pressure adjustment is achieved; the pressure adjustment does not depend on the experience ofusers and the adjustment error is small.

The invention discloses a hematodialysis upper limb internal fistula supporting and improving device. According to the technical scheme, the hematodialysis upper limb internal fistula supporting and improving device comprises a fixing mechanism and a temperature control mechanism, wherein the temperature control mechanism is connected with the fixing mechanism; the temperature control mechanism comprises a shell, an air blower, an ultrasonic probe and a controller; the fixing mechanism comprises a bottom plate and a binding band; the binding band is connected with the bottom plate; the shell is connected with the bottom plate; the air blower is positioned on a side surface of the shell and communicates with a cavity of the shell with the outside; a heater is placed in the air blower; the controller is positioned in the shell and is electrically connected with the air blower, the heater and the ultrasonic probe separately; an arm of a patient is fixed on the bottom plate through the shell and the binding band; and the ultrasonic probe is in contact with the skin of the upper surface of an arteriovenous internal fistula on the arm, the ultrasonic probe monitors blood flow to controlthe air blower and the heater to change the temperature of the outside of the arm, thus, the blood flow maintains in a normal state, and the problem that in an arteriovenous internal fistula surgery,blood voltage is not stable is solved.

The invention discloses a double-artery fixing device for arteriovenous internal fistula surgeries. The double-artery fixing device comprises a bending connecting rod, a first fixing clip and a secondfixing clip, wherein the first fixing clip and the second fixing clip are arranged on the bending connecting rod; a chock block is fixedly mounted at one end of the bending connecting rod, threads are formed in the other end of the bending connecting rod, and a nut is fixedly mounted on the threads; a trepanning is formed in the first fixing clip, and a chamfering is formed at the end of the trepanning; a compression spring is fixedly mounted at one end in the first fixing clip, a clamping block is fixedly mounted at the other end of the first fixing clip, the clamping block consists of an upper fixture block and a lower fixture block, and concave-convex blocks are arranged on the upper fixture block and the lower fixture block; a tooth is arranged on one side of the clamping block, and is arranged at the top end on the inner side of the first fixing clip; and a groove is formed in the bottom end corresponding to the tooth, on the inner side of the first fixing clip. The double-arteryfixing device has the beneficial effects that the double-artery fixing device has the advantages of being simple in structure, capable of being folded into different shapes, capable of not damaging blood vessels and the like.

The invention relates to the field of medical equipment, in particular to medical monitoring equipment, and more particularly relates to a visual monitoring method and a wearable monitoring device forinternal arteriovenous fistula, which form personalized blood flow waveform in the internal arteriovenous fistula of a specific user after being used by a dialysis patient for a period of time. Meanwhile, the standard model data is continuously updated according to the blood flow change of the patient in use, so that the individuation of monitoring and treatment is realized. Meanwhile, due to thefact that the wearable monitoring device is adopted, the oversleeve which can be used by a dialysis patient in daily life is used as a wearable base of the monitoring device, and the advantages of being attractive, small in size and the like are achieved.

The invention relates to the technical field of medical instruments, and aims at providing an internal arteriovenous fistula multifunctional limb pad. By means of the pad, it is ensured that limbs onthe internal fistula can be maintained at functional positions, so that the occurrences of complications are reduced, the service life of internal arteriovenous fistula is prolonged, and the comfort degree of a user can be improved. The pad comprises an arm supporting pad and a first functional pad; the arm supporting pad comprises an arm supporting pad sleeve body and an arm supporting pad innercore, and the arm supporting pad sleeve body is a sleeve body in which a rectangular lower bottom and an arc-shaped top can be formed after the arm supporting pad sleeve body is filled; the first functional pad comprises a first functional pad sleeve body and a first functional pad inner core, the first functional pad sleeve body is a sleeve body in which a sleeve body generally shaping like a rectangle can be formed after the first functional pad sleeve body is filled, and the middle of the upper surface of the first functional pad concaves downwards to form a first arc-shaped surface fittingthe arm of a user; the first functional pad is detachably fixed on the arm supporting pad through a connecting member.

The invention provides an internal arteriovenous fistula tremor measurement method and device based on a capacitance sensing principle. The method comprises the steps of collecting a tremor signal generated when blood flows through an internal fistula through a capacitance sensor, converting the tremor signal into a capacitance value, and outputting the capacitance value; and performing reducing through continuous capacitance value signals to obtain the tremor signal generated when the blood flows through the internal fistula. The device comprises a measuring unit and a signal processing unitwhich are connected through a shielded wire, wherein the measuring unit comprises an arc-shaped support, a sliding block, a telescopic rod and a capacitive sensor; an arc-shaped through groove is formed in the arc-shaped support to serve as a sliding rail, and the sliding block is in sliding connection with the sliding rail; the capacitive sensor comprises a fistula sensing polar plate and a fixedsensing polar plate; the telescopic rod penetrates through the sliding block and is fixedly connected with the fixed sensing polar plate at the end located on the circle center side of the arc-shapedsupport, of the telescopic rod. The device has the advantages of low cost, high precision, high sensitivity and free from risks to patients.

The invention discloses an all-around early-warning protective frame for internal fistula puncture bleeding. The structure is ingenious, and functions are powerful. Firstly, through action of the protective frame, all-around supporting and protecting action on an internal fistula puncture portion of a patient can be achieved; secondly, through cooperative action of liquid detection and a warning mechanism, not only can bleeding detection and warning for the internal fistula puncture portion of the patient be achieved, but also bleeding detection and warning for loose connection of a joint of an internal fistula puncture needle and a joint of a central venous indwelling catheter can be achieved, so that it is convenient to protect the puncture portion of the patient from pressing of quilt strips, and observation is convenient; meanwhile, a medical worker finds bleeding of the patient and conducts emergency treatment on the patient in time, so that complications of the patient are avoided; finally, in the way, not only is safety of the patient improved, but also the burden of the medical worker is reduced, and accordingly clinical application and popularization are promoted.