18 results about "Ventricular drainage" patented technology

This invention provides a method and system for intelligent monitoring of ventricular drainage based on multimodal sensing. The method includes simultaneously collecting multimodal sensing data of the drainage fluid at the same monitoring point on the drainage tube; the multimodal sensing data includes optical sensing signals and capacitive sensing signals; preprocessing and feature extraction of the multimodal sensing data to obtain standardized multimodal feature vectors; fusing the feature vectors of the multimodal feature vectors and inputting them into a pre-trained multimodal intelligent analysis model, which outputs a risk assessment result of the current drainage status; and executing a corresponding graded response operation based on the risk assessment result, the graded response operation including at least triggering a local audible and visual alarm, overcoming the shortcomings of only monitoring single quantitative information such as intracranial pressure or total drainage volume, while relying on subjective visual observation for qualitative changes.

The invention discloses an intelligent ventricular drainage tube linkage clamping and closing device. The device comprises a respirator signal acquisition module which is responsible for acquiring sputum suction start-stop signals, filtering, reducing noise and eliminating interference; the clamping execution module is electrically connected with the acquisition module and is used for receiving an instruction to execute clamping and opening actions of the drainage tube; the linkage control module is respectively connected with the acquisition module and the breathing machine, and ensures that clamping is completed before sputum suction or at the same time through data interaction synchronization signals; the user interaction and safety module integrates manual control, state indication and power-off emergency components and can manually control the flow rate of the drainage tube; and the alarm module is connected with the acquisition and execution module, and generates an alarm signal when the system fails, the signal is abnormal or the clamping is abnormal. By means of multi-module linkage, accurate synchronization of sputum suction operation and drainage tube clamping / opening is achieved, intracranial pressure is stabilized, the dual control function, the graded alarm function and the fault self-diagnosis function are combined, clinical operation safety and convenience are improved, and various diagnosis and treatment requirements are met.

The invention discloses a flow monitoring and control device for ventricular drainage, and relates to the field of medical drainage instruments, comprising: a drainage assembly comprising a drainage tube, a drainage bottle, an electric three-way valve and a drainage bag connected in sequence; the full-liquid detection module is used for monitoring whether the liquid level in the drainage bottle reaches a full-liquid threshold value or not in real time and generating a full-liquid signal when the liquid level in the drainage bottle is monitored to reach the full-liquid threshold value; the control module is used for controlling the electric three-way valve to be communicated with a passage between the drainage bottle and the drainage bag according to the full-liquid signal from the full-liquid detection module, so that liquid in the drainage bottle flows into the drainage bag under the action of gravity; after it is determined that the liquid in the drainage bottle completely flows into the drainage bag, the electric three-way valve is controlled to turn off a channel between the drainage bottle and the drainage bag, and the drainage amount is determined based on the communication times of the channel between the drainage bottle and the drainage bag and the full liquid capacity of the drainage bottle; and the storage and display module is used for storing and displaying the working state, the communication times, the drainage amount and the like of the electric three-way valve.

The present application relates to the technical field of drainage tube locking device, and discloses a skull adaptive ventricular drainage tube precise locking device, which comprises a main body, the side wall of the main body is fixedly connected with a connecting plate, further comprising: a deformation mechanism, which is installed on the side wall of the connecting plate and is used for bending compliantly when the drainage tube is pulled. The arc-shaped plate will extrude the elastic plate inside the triangular groove, drive the inner ring to deflect inside the fixed buckle, and make the inner ring deflect synchronously with the drainage tube, so that the axis of the inner ring is almost consistent with the leading direction of the drainage tube. Meanwhile, when the arc-shaped plate is pulled, the bending of the arc-shaped plate will be attached to the surface of the pipeline and keep the transition arc of the bending, thereby preventing the drainage pipeline from being sharply bent after being pulled by the outside, reducing the narrowing of the channel in the drainage pipeline, poor drainage or even occlusion, and ensuring the drainage function of the drainage tube while improving the drainage efficiency of the drainage tube.

The present invention relates to a catheter (10) placed in the ventricular system, particularly an external ventricular drainage catheter, for draining fluid from the ventricles of the ventricular system, particularly the human ventricular system, and especially for draining cerebrospinal fluid. The catheter (10) comprises a tubular body (11) having an internal drainage lumen (12) extending along the tubular body (11) for draining fluid, and at least one port (13.1, 13.2, 13.3) located in the distal region (14) of the tubular body (11), the at least one port (13.1, 13.2, 13.3) connecting the drainage lumen (12) to the outside of the tubular body (11) and to the outside of the catheter (10) in order to drain fluid from the ventricles into the drainage lumen (12). The catheter (10) further includes at least one forward ultrasound sensor, in particular at least one forward ultrasound transducer, the at least one forward ultrasound sensor (16) which emits forward ultrasound and detects forward ultrasound that is reflected back to the at least one forward ultrasound sensor (16), in particular to acquire a sonogram, the at least one forward ultrasound sensor (16) is located at the distal end (17) of the tubular body (11). Furthermore, the present invention relates to a combination (3) of a control unit (4) and the catheter (10) according to the present invention. Furthermore, the present invention relates to a configuration (1) which includes a mandolin, in particular a stylet (2) and the catheter (10) according to the present invention.

The utility model discloses an adjustable ventricular drainage suspension fixing device, which relates to the field of fixing devices and comprises a vertical rod, a height adjusting component is arranged on the front side of the vertical rod, a graduated scale is arranged on the front side of the height adjusting component through a slide rail, and an infrared measuring device is fixedly arranged on the front side of the graduated scale. A moving block is arranged at the top of the infrared measuring device, and two hooks are fixedly arranged on the front side of the moving block. According to the utility model, the angle detection assembly is connected to the bed head through the pressing sheet, and the contact position of the electrode plate and the resistance ring also changes in the moving process of the angle detection assembly, so that the angle change of the bed head is reflected through the resistance; on the basis, the position of the height adjusting assembly and the height of the hook relative to the infrared measuring device are controlled through the controller, it is avoided that brain drainage of the patient is affected by changes of the bed head and the head of the patient, and then danger of the patient is avoided.

The utility model relates to the technical field of medical instruments, and particularly discloses a ventricular drainage tube placing frame which comprises a sliding frame, a sliding seat is connected to the outer side of the sliding frame in a sliding mode, an adjusting ring is connected to the outer side of the sliding frame in a threaded mode, a limiting column is arranged on the outer side of the sliding frame, and a laser positioner is arranged at one end of the sliding seat. A graduated scale is fixedly connected to the top end of the sliding seat, a hook frame is slidably connected to the outer side of the graduated scale, an adjusting mechanism used for adjusting the height of the hook frame is arranged in the hook frame and comprises a rotating column, a rotating piece and an extrusion block, and the outer side of the rotating column is in threaded connection with the interior of the hook frame. Adjustment can be carried out according to the specific condition of a patient, visual inspection and operation depending on feeling are not needed any more, the ventricular drainage tube can be placed more accurately, the operation method of nurses is unified, the operation method is more standardized, and the nursing quality is improved.

The invention discloses an anti-bending fixing device of a drainage catheter for external ventricular drainage, relates to the field of cerebral drainage auxiliary instruments, and solves the problems that the drainage catheter is easy to bend due to the subscalp hidden trend, the drainage is unsmooth, the intracranial pressure measurement is inaccurate, and the existing fixing mode needs frequent human intervention. The device comprises a contact piece surrounding a drainage catheter, the contact piece is provided with a first adhesion layer and an inner side limiting protrusion, and the outer side is rotationally connected with a locking piece with a first connecting hole; the anti-bending supporting plate with the bending angle of 90-180 degrees is connected with the locking piece through a pin, and the auxiliary supporting plate is assembled to be matched with the trend of the guide pipe. The locking piece is connected with the telescopic connecting frame and the mounting frame, a reverse control shaft in the mounting frame is connected with two sliding frames, and the sliding frames are provided with supporting pieces with flexible bags and second adhesion layers. The device achieves accurate bending prevention and stable supporting, manual operation is reduced, drainage and pressure measurement accuracy is guaranteed, and adaptability is high.

The invention discloses an external ventricular drainage regulation and control device, and relates to the technical field of medical health. The external ventricular drainage operation through hole is formed in the top surface of the helmet; the drainage tube accommodating groove is embedded in the top surface of the helmet; the drainage bag accommodating groove is embedded in the top surface of the helmet; the flow velocity sensor is used for collecting the flow velocity of the drainage tube and the change condition of the flow velocity; a flow rate adjusting device; and the drainage control module is in signal connection with the flow velocity sensor and the transmission motor. The drainage device is fixed on the basis of a hardware structure, the flow speed regulation and control component is matched, drainage work is monitored in real time, automatic adjustment is carried out, and it is effectively guaranteed that the drainage work is safely and reliably carried out.

This invention provides a rat cerebrospinal fluid (CSF) metering and collection device with injection and pressure measurement functions. The device includes a glass tube and a catheter. A pressure probe is installed inside the glass tube. A three-way valve is installed at one end of the glass tube, and the other two ends of the three-way valve are connected to tubing. This device facilitates drug injection, facilitates CSF collection, measures CSF pressure, observes the relationship between CSF flow rate, flow velocity, and intracranial pressure, and simulates and studies the effects of ventricular drainage surgery. The rat CSF metering and collection device with injection and pressure measurement functions provided by this invention has the advantages of being easy to use, capable of collecting CSF, and accurately calculating the amount of CSF secreted.

The present invention provides a left ventricular drain tube that can sensitively detect whether or not blood has been completely aspirated from the left ventricle. [Solution] The left heart drain tube includes a drain tube with a hollow suction head 2 at one end, the suction head includes an inner core 21 and an elastic support member 22, the inner core has suction ports 211 spaced apart on its outer surface along its circumferential direction, the elastic support member is placed over the suction head and is expandable and contractible in response to changes in the pressure difference between the inside and outside of the suction head, the elastic support member is provided with an elastic opening 222 that changes its opening width according to its expansion and contraction, distance sensing devices are provided at both ends of the elastic support member so that the pressure difference between the inside and outside of the suction head can be monitored according to the amount of expansion and contraction of the elastic support member. An expandable and contractible elastic support member is provided on the outside of the suction head and the operation of the elastic support member can be detected using the distance sensing device.

The application discloses a kind of intelligent integrated ventricular drainage device and control method based on multi-source data fusion, the device is monitored in real time by micro bioelectrochemical impedance sensor electrochemical characteristics of drainage fluid, and fuses clinical physiological indicators, constructs 7-dimensional infection risk assessment vector;Infection super-early warning is realized using random forest machine learning algorithm, average early warning time is 8 hours, accuracy is 86.8%;Through adaptive PID control, intracranial pressure is finely adjusted, average control error is ≤2 mmHg, error <2mmHg time ratio reaches 94.5%;Integrating honeycomb micropore design and vibration anti-blocking module, effectively prevent drainage tube blockage, simulation research shows that the system can increase infection prevention rate to 70%, hospitalization time is reduced by 3.2 days, bed rotation rate is increased by 47%, realizes the innovation of clinical management mode from "infection treatment" to "infection prevention", and is assisted by anti-blocking device, pressure regulating device and the like structure, combination improves the overall drainage effect.

This invention relates to the field of medical device technology and discloses a fixation device for an external ventricular drainage tube and an intracranial pressure probe, including a side plate and a top plate. An adjustment assembly is provided between the side plate and the top plate, and a fixation mechanism is provided on the outer side of each side plate and the top plate. This invention secures the device to the patient's head by fastening the fixation sleeve formed by the side plate and the top plate to the outside of the patient's head. Then, the first and second fixation straps are pulled and secured using the round and barbed surfaces of the Velcro. The fixation is convenient and quick. The breathable padding improves the comfort and breathability of the device after fixation, preventing discomfort or allergic reactions caused by stuffiness. Furthermore, during fixation, adjustments can be made by pulling the two sets of side plates, allowing the limiting rod to move within the cavity, thus facilitating adjustment of the fixation sleeve size. This allows for adjustment according to the patient's head size, resulting in high applicability.

The invention discloses an external ventricular drainage device for monitoring intracranial pressure in real time and a use method thereof. The device comprises a drainage module, a pressure measuring module, a pressure regulating module and a liquid collecting module, the drainage module is used for leading cerebrospinal fluid out of the ventricle; the pressure measuring module is communicated with the drainage module and is used for measuring the pressure of cerebrospinal fluid, converting a pressure signal into an electric signal and displaying an intracranial pressure value in real time; reference height registration is set between the pressure measuring module and the pressure regulating module, so that the detection plane of the pressure measuring module corresponds to the zero point of the graduated scale of the pressure regulating module; the pressure regulating module is communicated with the drainage module, and the flow of cerebrospinal fluid led out by the drainage module is controlled by regulating the height of the shunt bottle; the liquid collecting module is communicated with the drainage module and is used for collecting the led-out cerebrospinal fluid. According to the invention, the monitoring precision, the operation intuition and the clinical safety of bedside external ventricular drainage can be improved, and the portability and the clinical adaptability are considered at the same time.

A catheter, in particular an external ventricular drainage catheter, for placement in a ventricular system, in particular of a human, for drainage of liquid, in particular of cerebrospinal fluid, from a ventricle of the ventricular system, includes a tubular body having an internal drainage lumen running along the tubular body for the drainage of the liquid and a port, arranged in a distal region of the tubular body, the port connecting the drainage lumen with an outside of the tubular body and outside of the catheter for the drainage of the liquid from the ventricle into the drainage lumen. The catheter further includes an ultrasonic sensor, or transducer, for emitting frontal ultrasound waves and detecting the frontal ultrasound waves reflected back to the at least one frontal ultrasonic sensor, in particular for obtaining a sonogram. The frontal ultrasonic sensor is arranged at a distal tip of said tubular body.

The application discloses a ventricular drainage regulator, belongs to the field of drainage devices, and is used for ventricular drainage and comprises a liquid storage tank provided with a tank body connecting pipe, wherein the liquid storage tank is connected with a negative pressure tank provided with a main piston through a threaded structure, the main piston is connected with an auxiliary rack through a main piston rod, the auxiliary rack is in mesh transmission with a driving gear of a rack driving motor, a main cavity in the negative pressure tank is communicated with an auxiliary cavity in a negative pressure auxiliary pipe through a cavity connecting hole, an auxiliary piston is arranged in the auxiliary cavity, the auxiliary piston blocks the cavity connecting hole in an initial state, the auxiliary piston is connected with an auxiliary piston rod, the auxiliary piston rod is connected with a linkage rod, the linkage rod is connected with a linkage plate, the linkage plate is connected with the auxiliary rack, and the application can generate and fine tune a negative pressure environment through structural adjustment, can effectively guarantee the stability of the negative pressure environment, can increase and fine tune the negative pressure, has better flexibility and adaptability, and is convenient for ventricular drainage and observation of drainage volume.

An irrigation assembly for an external ventricular drainage tube (EVD) system, comprising: a collapsible upper body and a base, the irrigation assembly connected to an external ventricular drainage tube using a connector adjacent a bottom end of the irrigation assembly; the connector intersects with the collapsible upper body and / or a base, the base intersects with the connector, and wherein the irrigation assembly stores fluid in an internal fluid reservoir, and when the irrigation assembly is activated, the irrigation assembly is coupled to the connector. The collapsible upper body pushes fluid from the inner fluid reservoir to an irrigation site to perform irrigation of the external ventricular drainage tube.

The utility model relates to the technical field of medical consumables, in particular to a height measuring device for an external ventricular drainage tube, which comprises a height measuring scale vertically mounted on a support and a horizontal measuring scale vertically mounted with the height measuring scale, and an extension rod coaxially distributed with the height measuring scale is arranged on the lower portion of the height measuring scale. A height adjusting seat for adjusting the vertical height of the horizontal measuring scale is arranged on the extension rod, the horizontal measuring scale is rotationally connected with the height adjusting seat, a mounting seat for placing a drainage tube is arranged on the side wall of the height measuring scale, and the height of the horizontal measuring scale can be adjusted by utilizing the height adjusting seat, so that the horizontal measuring scale and the tragus of a patient are kept on the same horizontal line; the height of the mounting seat is adjusted, so that the sum of the distance between the mounting seat and the mounting seat meets the height specified in the doctor's advice, precise nursing is realized, and discomfort of the patient caused by height difference is avoided.