Drainage balancing system
Through the drainage monitoring unit and visual tracking system of the drainage balancing system, dual monitoring and automated adjustment of the external ventricular drainage device are achieved, solving the accuracy and real-time problems of traditional devices and ensuring the stability and safety of the drainage process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI CUSHING MEDICAL TECH CO LTD
- Filing Date
- 2025-01-14
- Publication Date
- 2026-07-14
Smart Images
Figure CN122376876A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical devices, and in particular to a drainage balancing system. Background Technology
[0002] In neurosurgery, external ventricular drainage (EVD) is a crucial and commonly used technique. Its main principle is to drain fluid from the brain by utilizing intracranial pressure, thereby reducing intracranial pressure and regulating cerebrospinal fluid circulation. However, traditional EVD devices have revealed several significant limitations in practical application. Regarding drainage control, typical EVD devices rely on manual adjustment of the hanging plate height to manage the drainage process. This manual adjustment method has many drawbacks. Due to the lack of a precise automated control mechanism, it is difficult to accurately set the appropriate pressure differential height. EVD is a gradual process, requiring the pressure differential height set by the EVD device to be precise and appropriate. Excessive pressure differential height can lead to over-drainage, resulting in intracranial under-pressure, which may cause serious complications such as brain tissue displacement and blood vessel rupture, posing a significant threat to the patient's life and health. Traditional EVD devices also have problems with monitoring and adjustment mechanisms. On the one hand, their monitoring methods are simplistic and imprecise, often failing to comprehensively and in real-time monitor changes in various key parameters during the drainage process. On the other hand, traditional methods struggle to detect changes in intracranial pressure in real time when a patient's position changes, making it impossible to adjust the height and orientation of the external drainage device promptly. In actual clinical settings, patient positions inevitably change during treatment, such as turning over or sitting up. These positional changes alter the relative relationship between intracranial pressure and the external drainage device. If the device cannot be adjusted in height and orientation in a timely manner, it severely impacts the stability and safety of the drainage effect, potentially leading to problems such as inadequate or excessive drainage, increasing the patient's treatment risks and suffering. Summary of the Invention
[0003] In view of the above-mentioned defects of traditional external ventricular drainage devices, the present invention proposes a drainage balancing system, which is mainly used in neurosurgery to accurately and comprehensively monitor the drainage process.
[0004] To achieve the above objectives, the present invention provides a drainage balancing system, comprising:
[0005] An external drainage device includes a drainage bracket, a dropper bottle bracket, a dropper bottle, a drainage tube, and a drainage tube. The dropper bottle bracket is adjustablely mounted on the drainage bracket, the dropper bottle is mounted on the dropper bottle bracket, and the drainage tube and the drainage tube are respectively connected to the dropper bottle.
[0006] The drainage monitoring unit includes multiple preset sensors, at least one of the preset sensors is used to monitor the flow state of the drainage fluid in the drainage tube, and at least another preset sensor is used to monitor the dripping state of the drainage fluid at the outlet of the drainage tube.
[0007] A visual tracking system is used to capture images of regions of interest on a target object and to obtain the position information of marker points on the regions of interest based on the images of the regions of interest.
[0008] A drainage adjustment device, connected to the external drainage device, enabling the external drainage device to move up and down and swing relative to the drainage adjustment device; and...
[0009] The control unit is communicatively connected to the drainage monitoring unit and the visual tracking system, respectively. The control unit is used to obtain the height and orientation parameters that the external drainage device needs to be adjusted based on the data fed back by the drainage monitoring unit and the visual tracking system.
[0010] Optionally, the control unit is also communicatively connected to the drive motor in the drainage adjustment device and is used to control the drive motor to drive the external drainage device to move up or down as needed to adjust the height parameter; the control unit is also configured to determine whether the drainage fluid flow rate increases or decreases based on the data fed back by the drainage monitoring unit, and when it is determined that the drainage fluid flow rate increases, control the drive motor to drive the external drainage device to move down, and when it is determined that the drainage fluid flow rate decreases, control the drive motor to drive the external drainage device to move up.
[0011] Optionally, the control unit is further configured to obtain the waste liquid collection volume based on the data fed back by the drainage monitoring unit, and compare the waste liquid collection volume with the preset drainage volume. When the comparison result shows that the waste liquid collection volume is less than the preset drainage volume, the drainage balancing system continues to drain. When the comparison result shows that the waste liquid collection volume exceeds the preset drainage volume, the drainage balancing system ends the drainage.
[0012] Optionally, the drainage adjustment device is installed on the back of the drainage bracket, and the drip bottle is installed on the front of the drainage bracket; the drainage adjustment device includes a drive motor, a motion transmission mechanism, and a mounting structure; the motion transmission mechanism is connected to the drainage bracket, the drive motor, and the mounting structure respectively; the motion transmission mechanism can convert the rotational motion of the drive motor into the linear movement of the drainage bracket; the mounting structure is used to detachably fix it to an external mechanism; the mounting structure includes a swing joint, through which the external drainage device is adjusted in position.
[0013] Optionally, the drainage balancing system also satisfies at least one of the following:
[0014] The drainage adjustment device also includes a manual drive that is directly or indirectly connected to the drainage bracket. The drainage adjustment device selectively drives the external drainage device to move up and down through the drive motor or the manual drive.
[0015] The motion transmission mechanism includes a gear and a guide rail. The guide rail is fixed to the back of the drainage bracket. The guide rail meshes with the gear. The gear is coaxially connected to the drive motor. The swing joint is slidably connected to the guide rail.
[0016] The swing joint is a universal joint;
[0017] The mounting structure includes a clamping block and a locking bolt. The clamping block is used to clamp the infusion stand, and the locking bolt is used to lock the clamping block and the infusion stand.
[0018] Optionally, all the preset sensors are mounted on the drainage bracket in an adjustable manner, and all the preset sensors are non-contact flow sensors.
[0019] Optionally, the preset sensor for measuring the state of the drainage fluid in the drainage tube is an electromagnetic flow sensor, and / or the preset sensor for measuring the state of the drainage fluid at the outlet of the drainage tube is an optical sensor.
[0020] Optionally, the drainage monitoring unit further includes a sensor bracket and a sensor bracket adjuster; all the preset sensors are mounted on the sensor bracket; the sensor bracket adjuster is mounted on the sensor bracket; the sensor bracket is slidably mounted on the side of the drainage bracket; the side of the drainage bracket is provided with a sliding groove; the sensor bracket can be driven by the sensor bracket adjuster to move up and down along the sliding groove.
[0021] Optionally, the drainage balancing system also satisfies at least one of the following:
[0022] The top of the drainage bracket is equipped with a horizontal bubble;
[0023] The drainage support is a liquid column pressure gauge;
[0024] The drainage bracket is provided with multiple locking positions along its own height direction, and the dropper bracket is locked in a corresponding locking position by fastening screws;
[0025] The dropper holder is configured to be manually adjusted in its vertical position.
[0026] Optionally, the visual tracking system includes a camera and an image processing unit; the camera is mounted on the back of the drainage bracket; the dropper is mounted on the front of the drainage bracket; the camera is used to capture an image of the region of interest on the target object; the image processing unit is used to obtain the position information of the marker points on the region of interest based on the image of the region of interest.
[0027] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:
[0028] This invention provides a drainage balancing system. This system uses an external drainage device to remove drainage fluid from the body, achieving therapeutic goals such as reducing intracranial pressure and regulating cerebrospinal fluid. The system also uses a drainage monitoring unit to precisely monitor the flow of drainage fluid within the drainage tube and closely monitor the dripping state of the drainage fluid exiting the tube. This dual monitoring of the external ventricular drainage tube allows for more precise and comprehensive control of the drainage process (including parameters such as drainage speed and flow rate), effectively avoiding a series of problems caused by unstable drainage. It also eliminates the need for continuous manual monitoring of the drainage process by medical staff, reducing their workload and manpower. To mitigate operational errors and improve drainage accuracy and efficiency, the system employs a visual tracking system to capture real-time images of the marked areas on the patient's head (the target object). This allows for real-time tracking of changes in the patient's position, and the control unit automatically obtains the necessary height and orientation adjustments for the external drainage device based on the location information of the marked points. This allows for timely adjustments to the height and orientation of the external drainage device based on the height and orientation obtained from the control unit. Consequently, even when the patient's position changes, there is no need to reposition the external drainage device, effectively avoiding drainage errors caused by untimely repositioning and ensuring the stability and safety of the drainage process. Attached Figure Description
[0029] Figure 1 This is a front view of the external drainage device in a preferred embodiment of the present invention.
[0030] Figure 2 This is a rear view of the external drainage device in a preferred embodiment of the present invention.
[0031] Figure 3 This is a rear flip view of the external drainage device adjusting its orientation via a drainage adjustment device in a preferred embodiment of the present invention.
[0032] Figure 4 This is a rear view of the external drainage device in a preferred embodiment of the present invention, showing the adjustment of its orientation and height via a drainage adjustment device.
[0033] Figure 5This is a view showing the external drainage device adjusting its orientation and height via a drainage adjustment device in a preferred embodiment of the present invention.
[0034] Figure 6 This is a schematic diagram illustrating the drainage working principle in a preferred embodiment of the present invention.
[0035] Figure 7 This is a diagram illustrating the application scenario of external ventricular drainage in a preferred embodiment of the present invention.
[0036] [The annotations in the attached figures are explained below]:
[0037] 100 - External drainage device; 101 - Drainage bracket; 102 - Dropper bottle bracket; 103 - Dropper bottle; 104 - Drainage tubing; 105 - Drainage tubing; 106 - Fastening screw; 107 - Horizontal bubble; 200 - Drainage monitoring unit; 201 - Preset sensor; 202 - Sensor bracket; 203 - Sensor bracket adjuster; 204 - Data cable; 300 - Visual tracking system; 301 - Camera; 400 - Drainage adjustment device; 401 - Guide rail; 402 - Drive motor; 403 - Gear; 404 - Swing joint; 405 - Mounting structure; 4051 - Clamping block; 4052 - Locking bolt; 406 - Manual actuator. Detailed Implementation
[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0039] The terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. In this invention, unless otherwise expressly specified and limited, the terms "installation," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. In this description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this description, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0040] The core idea of this invention is to provide a drainage balancing system that employs a dual monitoring mode for external ventricular drainage tubing and a visual monitoring mode for patient positioning. This allows for precise and comprehensive real-time monitoring of changes in various key parameters during the drainage process, including drainage speed, drainage volume, and intracranial pressure reference point. Consequently, the height and orientation of the external drainage device can be adjusted promptly and effectively to ensure the stability and safety of the drainage process and improve drainage efficiency and accuracy.
[0041] Please see Figures 1 to 7This invention provides a drainage balancing system, including an external drainage device 100, a drainage monitoring unit 200, a visual tracking system 300, a drainage adjustment device 400, and a control unit (not shown). The control unit can be any existing control device, computing device, hardware, software, and / or a combination thereof. Those skilled in the art can understand how to set up the control unit based on the disclosure of this application and common knowledge in the field.
[0042] The control unit is communicatively connected to the drainage monitoring unit 200 and the visual tracking system 300. Preferably, the control unit is also communicatively connected to the drainage adjustment device 400. It should be understood that the control unit is communicatively connected to the electrical components of the drainage monitoring unit 200 and the drainage adjustment device 400. The control unit is configured to obtain the height and orientation parameters that the external drainage device 100 needs to be adjusted based on the data fed back from the drainage monitoring unit 200 and the visual tracking system 300. Preferably, the control unit can also control the drainage adjustment device 400 to automatically adjust the height of the external drainage device 100 according to the required adjustment height. This automatic adjustment method is more precise, which is beneficial for accurately setting a suitable differential pressure height, avoiding over-drainage, and ensuring the patient's safety.
[0043] like Figure 1 As shown, the external drainage device 100 includes: a drainage support 101, a drip bottle support 102, a drip bottle 103, a drainage tube 104, and a drain tube 105. The drainage support 101 can be suspended on an IV stand or at other convenient drainage locations. Optionally, the drainage support 101 is a liquid column manometer with a millimeter-mercury column or centimeter-water column. The drip bottle support 102 is adjustablely mounted on the drainage support 101, and the drip bottle 103 is mounted on the drip bottle support 102. Because the drip bottle support 102 is adjustable, its vertical position relative to the drainage support 101 is adjustable, indirectly adjusting the height of the drip bottle 103 relative to the drainage support 101. Preferably, the drip bottle 103 is adjusted to a suitable height by manually adjusting the drip bottle support 102, facilitating manual correction by medical personnel.
[0044] Simultaneously, it is necessary to lock the drip bottle holder 102 and the drainage holder 101. The drainage holder 101 may have multiple locking positions, spaced apart along its height. Once the position of the drip bottle holder 102 is determined, it can be locked in the corresponding locking position and held in place. Preferably, the drip bottle holder 10 is locked to the drainage holder 101 by a fastening screw 106. This structure is simple, and locking and unlocking are very convenient.
[0045] The drainage tube 104 and the drain tube 105 are respectively connected to the drip bottle 103. The drainage tube 104 is used to drain the drainage fluid from the ventricle into the drip bottle 103. The drain tube 105 is used to drain the drainage fluid from the drip bottle 103.
[0046] Those skilled in the art should understand that during drainage, the drip bottle 103 is placed at a suitable horizontal height, and the entire external drainage device 100 should be kept horizontal to ensure that the external drainage device 100 has a suitable pressure differential height relative to the intracranial pressure reference point. The horizontal height setting of the drip bottle 103 needs to be adjusted according to the patient's specific condition.
[0047] It is also important to understand that the adjustment of the entire external drainage device 100 includes two aspects: the vertical adjustment of the drip bottle 103 and the vertical adjustment of the drainage bracket 101. The vertical adjustment of the drainage bracket 101 is equivalent to adjusting the height of the entire external drainage device 100. These two adjustments are to set a pressure difference value relative to the intracranial pressure reference point. This pressure difference value should be appropriate to avoid problems of excessive or insufficient pressure difference. As mentioned earlier, the vertical adjustment of the drip bottle 103 is preferably done manually, while the vertical adjustment of the drainage bracket 101 is initially in electric mode. Furthermore, based on the electric mode, a manual adjustment mode can be configured to facilitate manual adjustment by medical staff to correct the height of the drainage bracket 101 when needed.
[0048] Preferably, the top of the drainage support 101 is provided with a horizontal bubble 107. The horizontal bubble 107 is a small spherical bubble. When the drainage support 101 is placed horizontally, the horizontal bubble 107 should be in the center. If the horizontal bubble 107 is not in the center, the orientation of the external drainage device 100 can be adjusted by the drainage adjustment device 400 until the horizontal bubble 107 is in the center.
[0049] Continue to refer to Figure 1 and combined Figure 2 The drainage monitoring unit 200 includes multiple preset sensors 201, where "multiple" means at least two. At least one preset sensor 201 monitors the flow state of the drainage fluid within the drainage tube 104 (e.g., drainage speed, drainage flow rate), and at least another preset sensor 201 monitors the dripping state of the drainage fluid at outlet A in the drip bottle 103 (e.g., dripping speed, drip flow rate). This achieves dual monitoring of the external ventricular drainage tube 104, resulting in more accurate and comprehensive monitoring.
[0050] Preferably, all the preset sensors 201 measure the flow state of the drainage fluid in the drainage tube 104 and the dripping state of the drainage fluid at the outlet A of the drainage tube 104 in a non-contact measurement manner. This can effectively prevent the spread and infection of pathogens and ensure the safety of drainage. In this embodiment, the preset sensor 20 can measure the instantaneous flow rate or the volumetric flow rate of the drainage fluid.
[0051] The preset sensor 201 can be an optical sensor, ultrasonic sensor, electromagnetic sensor, Doppler sensor, or other suitable non-contact flow sensor. More preferably, the preset sensor 201 for measuring the flow state of the drainage fluid in the drainage tube 104 is a high-precision electromagnetic flow sensor, which can more accurately measure the flow state of the drainage fluid in the drainage tube 104.
[0052] For ease of use, preferably, all preset sensors 201 are mounted on the drainage bracket 101 in an adjustable manner, allowing them to change position with the dropper bottle 103, thus maintaining a constant relative position between the preset sensors 201 and the dropper bottle 103. For example, the preset sensors 201 can be directly mounted on the dropper bottle bracket 102, and adjusted as the dropper bottle bracket 102 is adjusted. Alternatively, in this embodiment, the drainage monitoring unit 200 further includes a sensor bracket 202 and a sensor bracket adjuster 203; all preset sensors 201 are mounted on the sensor bracket 202; the sensor bracket adjuster 203 is mounted on the sensor bracket 202; the sensor bracket 202 is slidably mounted on the side of the drainage bracket 101; the side of the drainage bracket 101 is provided with a sliding groove; the sensor bracket 202 can be driven by the sensor bracket adjuster 203 to move up and down along the sliding groove, thereby adjusting the horizontal height of the preset sensors 201. The sensor bracket adjuster 203 can be manually adjusted. Therefore, the preset sensor 201 can move synchronously with the dropper bottle 103, or the preset sensor 201 and the dropper bottle 103 can move independently. Figure 1 In this configuration, each preset sensor 201 is communicatively connected to the control unit 500 via a data line 204. The control unit 500 is used to receive data fed back from the preset sensors 201.
[0053] As mentioned above, at least one preset sensor 201 is used to monitor the flow state of the drainage fluid at the outlet A of the drainage tube 104. The purpose is to monitor the dripping state of the drainage tube 104 at the outlet A in the dropper bottle 103, so as to facilitate the judgment of the outflow of the drainage tube 104 and to detect problems such as blockage of the drainage tube 104 in a timely manner.
[0054] Therefore, dual monitoring was adopted for the external ventricular drainage tube 104. Not only was the flow rate of the liquid in the drainage tube 104 precisely monitored, but the dripping situation at the outlet A of the drainage tube 104 was also closely monitored, thereby achieving more precise and comprehensive control over the drainage process.
[0055] Preferably, the preset sensor 201 for measuring the flow state of the drainage fluid at outlet A of the drainage tube 104 is an optical sensor. The response time of the optical sensor is generally less than 0.05 seconds, which can more accurately measure the dripping state of the drainage fluid at outlet A of the drainage tube 104. In this way, when the droplet falls at outlet A of the drainage tube 104, the optical sensor can quickly and timely detect the change in light signal, thereby calculating the dripping speed and dripping flow rate per unit time, and transmitting the data to the control unit 500.
[0056] Continue to refer to Figure 1 The visual tracking system 300 mainly includes a camera 301 and an image processing unit (not shown). Preferably, the camera 301 is mounted on the drainage support 101 for ease of use. As shown in the figure, the camera 301 is mounted on the back of the drainage support 101, while the drip bottle 103 is mounted on the front of the drainage support 101. The camera 301 is used to capture images of the region of interest on the target object (i.e., the patient's head 10). Specifically, as... Figure 7 As shown, the camera 301 is aimed at the patient's head 10 and captures an image of the region of interest on the patient's head 10 with marked points.
[0057] Preferably, the camera 301 is a high-definition binocular vision camera to achieve high-precision recognition and positioning. The binocular vision camera can recognize objects with optical reflective films, which is equivalent to setting optical markers on the skull. These optical markers are fixed surface points on the patient's head 10 during craniocerebral drainage. During the drainage process, these specific markers are used to measure changes in intracranial pressure. Those skilled in the art should know that these markers are used to mark the reference point of intracranial pressure on the body surface, and are usually marked by the surgeon. The reference point of intracranial pressure is the projection point of intracranial pressure onto the body surface.
[0058] The image processing unit is any image processing device or software known in the art. The image processing unit is communicatively connected to the camera 31. The image processing unit is used to obtain the position information of the marker points on the region of interest based on the image of the region of interest. That is, the image processing unit analyzes and processes the image of the patient's head 10 captured by the camera 301 to obtain the position information of the marker points on the patient's head 10.
[0059] The positioning accuracy of the visual tracking system 300 can generally reach ±0.5mm. Thus, the visual tracking system 300 can quickly and accurately identify changes in the position of the marker points on the patient's head 100, with high positioning accuracy.
[0060] Furthermore, the control unit 500 can obtain the orientation parameters that the external drainage device 100 needs to be adjusted based on the position information of the marked points on the patient's head 10, and also obtain the movement of the patient's head 100 and the relative position change of the intracranial pressure reference point. Once the patient's head 100 moves, the height and orientation of the external drainage device 100 can be adjusted automatically or manually through the drainage adjustment device 400 to ensure that the relative relationship between intracranial pressure and the external drainage device 100 remains unchanged, making the drainage process more stable and safer.
[0061] refer to Figures 2 to 5 The drainage adjustment device 400 is connected to the external drainage device 100, and the external drainage device 100 can move up and down and swing relative to the drainage adjustment device 400. The function of the drainage adjustment device 400 is to install the external drainage device 100 to the infusion stand or other positions, and also to adjust the orientation and horizontal height of the external drainage device 100.
[0062] Preferably, the control unit is also communicatively connected to the drive motor 402 in the drainage adjustment device 400; and the control unit is also used to control the drive motor 402 to drive the external drainage device 100 to move up or down as needed to adjust the height parameter. Once there is a change outside the patient's body, it can be quickly sensed by the visual tracking system 300, and the control unit can promptly control the drive motor 402 to adjust the height of the external drainage device 100, ensuring the stability and safety of drainage even without manual monitoring. It should be understood that the control unit can control the rotation direction, rotation speed, and number of rotations of the drive motor 402, thereby precisely adjusting the height of the external drainage device 100.
[0063] Preferably, the drainage adjustment device 400 is mounted on the back of the drainage support 101. Furthermore, in addition to the drive motor 402, the drainage adjustment device 400 also includes a motion transmission mechanism and a mounting structure 405; the motion transmission mechanism is connected to the drainage support 101, the drive motor 402, and the mounting structure 405 respectively; the motion transmission mechanism can convert the rotational motion of the drive motor 402 into linear movement of the drainage support 101; the mounting structure 405 is used for detachable fixing to an external mechanism, for example, an infusion stand or other suitable structure for mounting the external drainage device 100. In addition, the mounting structure 405 should include a swing joint 404, which drives the external drainage device 100 to adjust its position.
[0064] In this embodiment, the motion transmission mechanism includes a guide rail 401 and a gear 403. The guide rail 401, equivalent to a rack, is fixed to the back of the drainage bracket 101 and meshes with the gear 403. The gear 403 is coaxially connected to the drive motor 402, and the swing joint 404 is slidably connected to the guide rail 401. The working principle is as follows: the drive motor 402 rotates, driving the gear 403 to rotate, which in turn moves the guide rail 401. Since the guide rail 401 and the drainage bracket 101 are fixed together, the external drainage device 100 moves up and down as a whole. This structure allows for precise adjustment of the horizontal height of the external drainage device 100, and it is simple in structure and easy to use. The guide rail 401 has good load-bearing capacity and can stably support the entire external drainage device 100. Furthermore, the gear 403 can self-lock using the drive motor 402; that is, the drive motor 402 can provide a self-locking force when enabled.
[0065] Of course, the above-mentioned motion transmission mechanisms include, but are not limited to, gear and rack transmission methods, and can also be other mechanical structures known to those skilled in the art that can realize the conversion between rotary motion and linear motion.
[0066] In this embodiment, the swing joint 404 is directly or indirectly connected to the guide rail 401. The horizontal orientation of the drainage support 101 is adjusted via the swing joint 404 to ensure that the external drainage device 100 always maintains the correct relative orientation with the intracranial pressure reference point. Preferably, the swing joint 404 is a universal joint, which allows for more flexible and convenient adjustment, with a horizontal adjustment accuracy of approximately ±0.02mm, demonstrating high precision.
[0067] Preferably, the mounting structure 405 is fixed to the infusion stand, and can be fixed to the infusion stand by various means. Preferably, the mounting structure 405 includes a clamping block 4051 and a locking bolt 4052; the clamping block 4051 clamps the infusion stand, and the locking bolt 4052 locks the infusion stand and the clamping block 4051.
[0068] Preferably, the drainage adjustment device 400 further includes a manual actuator 406, which is directly or indirectly connected to the drainage bracket 101. The drainage adjustment device 400 selectively uses a drive motor 402 or a manual actuator 406 to drive the external drainage device 100 to move up and down. In this embodiment, the manual actuator 406 is manually operable, connected to the guide rail 401, and can drive the guide rail 401 to move up or down, controlling the linear motion output of the guide rail 401. Optionally, the manual actuator 406 is a knob. The manual actuator 406 facilitates manual intervention in the drainage process, making adjustment more flexible and convenient.
[0069] The control unit preferably employs a high-performance microprocessor as its core controller. Specifically, the control unit receives data from the drainage monitoring unit 200 and the visual tracking system 300, and calculates the required horizontal height and orientation adjustment parameters for the external drainage device 100. Optionally, the control unit sends control commands to the drive motor 402 of the drainage adjustment device 400, causing the drive motor 402 to start according to the control commands to adjust the horizontal height of the external drainage device 100. Simultaneously, the control unit also has data storage and display functions, storing various data generated during the drainage process in its internal memory and displaying it in real time on a screen for convenient viewing by medical personnel.
[0070] The working principle of the drainage balancing system provided in this invention will be further explained below with reference to some preferred embodiments.
[0071] like Figure 6 and Figure 7 As shown, the working principle of the above-mentioned drainage balancing system is as follows:
[0072] (1) Before starting drainage, first install the external drainage device 100: lock the clamping block 4051 onto the IV stand using the locking bolt 4052, then manually adjust the height of the drainage bracket 101 using the manual actuator 406 to ensure that the entire external drainage device 100 is at a suitable drainage height. The orientation of the drainage bracket 101 can also be manually adjusted using the swing joint 404 to ensure that the entire external drainage device 100 is in a horizontal position. Additionally, connect the drainage tubing 104 to the patient's external ventricular drainage puncture device (see...). Figure 7 (Connect; the whole;)
[0073] (2) After confirming that the entire system is correct, the external drainage device 100 is started to begin drainage. At the same time, the camera 301 captures images of the marked area on the patient's head 10 in real time. Various preset sensors (mainly flow sensors) monitor the drainage fluid status in the drainage tube 104 and at the outlet A in real time. During this process, the image processing unit can identify the position of the marked point on the patient's head 10 online. When drainage begins, the control unit can record the initial height and initial orientation of the external drainage device 100, and the initial height and initial orientation of the external drainage device 100 can be manually corrected.
[0074] (3) During normal drainage, the control unit determines whether the marker point has moved based on the data fed back by the drainage monitoring unit 200 and the visual tracking system 300, and can also determine whether the intracranial pressure reference point has changed. When the patient's intracranial pressure changes, causing the drainage fluid flow rate and drip rate to change, the control unit can calculate the height and orientation parameters that the external drainage device 100 needs to be adjusted in a timely manner, and further display these parameters. Preferably, the control unit controls the drive motor 42 to drive the guide rail 401 to move up or down as needed to adjust the height, so as to adjust the entire external drainage device 100 to a suitable horizontal height.
[0075] For example, when the control unit determines whether the drainage fluid flow rate increases or decreases based on the data fed back by the preset sensor 201, if it determines that the drainage fluid flow rate increases and the intracranial pressure is elevated, the control unit controls the drive motor 42 to drive the external drainage device 100 downward, lowering the height of the drip bottle 103 to increase the drainage pressure difference and promote drainage; conversely, if it determines that the drainage fluid flow rate decreases, the control unit controls the drive motor 42 to drive the external drainage device 100 upward, increasing the height of the drip bottle 103 and decreasing the drainage pressure difference.
[0076] Furthermore, when the patient's head 10 moves, the control unit obtains the relative height between the external drainage device 100 and the patient in real time through the camera 301, ensuring that the relative position of the external drainage device 100 and the intracranial pressure reference point is correct. If the external drainage device 100 tilts, it can be manually adjusted to be horizontal through manual intervention.
[0077] Preferably, the control unit can also calculate the waste liquid collection volume based on the data fed back by the preset sensor 201, and compare the waste liquid collection volume with the preset drainage volume; when the comparison result is that the waste liquid collection volume is less than the preset drainage volume, the drainage balancing system continues to drain; when the comparison result is that the waste liquid collection volume exceeds the preset drainage volume, the drainage balancing system ends the drainage.
[0078] In addition, throughout the entire drainage process, the control unit can store the drainage data and display it on the screen, allowing medical staff to check the drainage status at any time.
[0079] In summary, the present invention can track the position changes of the marker points on the patient's head 10 in real time through the visual tracking system 300, so that the external drainage device 100 does not need to be repositioned after the patient's position changes, effectively avoiding drainage errors caused by untimely repositioning. Therefore, the real-time positioning accuracy is improved.
[0080] Because the present invention can accurately track and adjust the external drainage device 100 in real time, it can significantly reduce problems such as over-drainage or poor drainage caused by inaccurate alignment between the external drainage device 100 and the intracranial pressure reference point, thereby reducing serious medical risks such as brain tissue damage and blood vessel rupture caused by abnormal changes in intracranial pressure.
[0081] This invention can automatically monitor the flow rate and drip status of the drainage fluid through the drainage monitoring unit 200, and can also automatically obtain the height and orientation parameters that the external drainage device 100 needs to be adjusted through the control unit. Then, the height and orientation of the external drainage device 100 can be automatically adjusted through the drainage adjustment device 400, realizing the automated management of the drainage process, reducing the workload of medical staff and human operation errors, improving the automation level of the entire drainage process, and increasing drainage efficiency.
[0082] This invention employs a high-precision flow sensor, which can accurately measure the flow rate of the dripping fluid inside and at the outlet of the drainage tube 104. The measurement accuracy can reach ±0.1 ml / min and the response time is 0.05 seconds, respectively. It can promptly detect changes in the flow rate of the drainage fluid caused by subtle changes in intracranial pressure, effectively avoiding over-drainage or under-drainage and improving drainage accuracy.
[0083] Therefore, the drainage balancing system of this invention integrates functions such as flow monitoring, visual tracking, and height and orientation adjustment, achieving intelligent automatic control. This eliminates the need for medical staff to frequently perform complex procedures such as manually adjusting the height of the external drainage device, repositioning it, and continuously calculating drainage parameters, thus simplifying the drainage operation process. Furthermore, medical staff can intuitively view various data during the drainage process at any time through the control unit's display screen, such as flow rate, external drainage device height, orientation, and intracranial pressure reference point location. They can also set and adjust the parameters of the external drainage device as needed, conveniently and quickly grasping the overall situation of the drainage process. The entire drainage control is convenient and improves work efficiency.
[0084] In summary, this invention incorporates an advanced visual tracking system 300, which can track the position of a pre-set mark on the patient's head 10 in real time during drainage. Image recognition technology is then used to accurately determine the intracranial pressure reference point, effectively ensuring the stability of pressure monitoring during drainage and preventing drainage abnormalities caused by deviations in the intracranial pressure reference point. Furthermore, when the patient's position changes, the system can quickly sense and instantly adjust the horizontal height and upper horizontal orientation of the external drainage device 100, ensuring that the external drainage device 100 is always in optimal working condition. Even without direct human monitoring, it can still achieve safe and stable drainage, greatly reducing the risk of serious treatment problems caused by changes in intracranial pressure and position. This provides a more reliable, efficient, and intelligent technical solution for external ventricular drainage treatment.
[0085] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the present invention.
Claims
1. A drainage balancing system, characterized in that, include: An external drainage device includes a drainage bracket, a dropper bottle bracket, a dropper bottle, a drainage tube, and a drainage tube. The dropper bottle bracket is adjustablely mounted on the drainage bracket, the dropper bottle is mounted on the dropper bottle bracket, and the drainage tube and the drainage tube are respectively connected to the dropper bottle. The drainage monitoring unit includes multiple preset sensors, at least one of the preset sensors is used to monitor the flow state of the drainage fluid in the drainage tube, and at least another preset sensor is used to monitor the dripping state of the drainage fluid at the outlet of the drainage tube. A visual tracking system is used to capture images of regions of interest on a target object and to obtain the position information of marker points on the regions of interest based on the images of the regions of interest. A drainage adjustment device, connected to the external drainage device, enabling the external drainage device to move up and down and swing relative to the drainage adjustment device; and... The control unit is communicatively connected to the drainage monitoring unit and the visual tracking system, respectively. The control unit is used to obtain the height and orientation parameters that the external drainage device needs to be adjusted based on the data fed back by the drainage monitoring unit and the visual tracking system.
2. The drainage balancing system according to claim 1, characterized in that, The control unit is also communicatively connected to the drive motor in the drainage adjustment device and is used to control the drive motor to drive the external drainage device to move up or down as needed to adjust the height parameter; the control unit is also configured to determine whether the drainage fluid flow rate increases or decreases based on the data fed back by the drainage monitoring unit. When it is determined that the drainage fluid flow rate increases, the control unit controls the drive motor to drive the external drainage device to move down, and when it is determined that the drainage fluid flow rate decreases, the control unit controls the drive motor to drive the external drainage device to move up.
3. The drainage balancing system according to claim 1 or 2, characterized in that, The control unit is also configured to obtain the waste liquid collection volume based on the data fed back by the drainage monitoring unit, and compare the waste liquid collection volume with the preset drainage volume. When the comparison result is that the waste liquid collection volume is less than the preset drainage volume, the drainage balancing system continues to drain. When the comparison result is that the waste liquid collection volume exceeds the preset drainage volume, the drainage balancing system ends the drainage.
4. The drainage balancing system according to claim 1, characterized in that, The drainage adjustment device is installed on the back of the drainage bracket, and the drip bottle is installed on the front of the drainage bracket. The drainage adjustment device includes a drive motor, a motion transmission mechanism, and a mounting structure. The motion transmission mechanism is connected to the drainage bracket, the drive motor, and the mounting structure. The motion transmission mechanism can convert the rotational motion of the drive motor into the linear movement of the drainage bracket. The mounting structure is used to detachably fix it to an external mechanism. The mounting structure includes a swing joint, which drives the external drainage device to adjust its position.
5. The drainage balancing system according to claim 4, characterized in that, It also meets at least one of the following conditions: The drainage adjustment device also includes a manual drive that is directly or indirectly connected to the drainage bracket. The drainage adjustment device can selectively drive the external drainage device to move up and down via the drive motor or the manual drive. The motion transmission mechanism includes a gear and a guide rail. The guide rail is fixed to the back of the drainage bracket. The guide rail meshes with the gear. The gear is coaxially connected to the drive motor. The swing joint is slidably connected to the guide rail. The swing joint is a universal joint; The mounting structure includes a clamping block and a locking bolt. The clamping block is used to clamp the infusion stand, and the locking bolt is used to lock the clamping block and the infusion stand.
6. The drainage balancing system according to claim 1, characterized in that, All of the preset sensors are mounted on the drainage bracket in an adjustable manner, and all of the preset sensors are non-contact flow sensors.
7. The drainage balancing system according to claim 6, characterized in that, The preset sensor for measuring the state of the drainage fluid in the drainage tube is an electromagnetic flow sensor, and / or the preset sensor for measuring the state of the drainage fluid at the outlet of the drainage tube is an optical sensor.
8. The drainage balancing system according to claim 6, characterized in that, The drainage monitoring unit further includes a sensor bracket and a sensor bracket adjuster; all the preset sensors are mounted on the sensor bracket; the sensor bracket adjuster is mounted on the sensor bracket; the sensor bracket is slidably mounted on the side of the drainage bracket; the side of the drainage bracket is provided with a sliding groove; the sensor bracket can be driven by the sensor bracket adjuster to move up and down along the sliding groove.
9. The drainage balancing system according to claim 1, characterized in that, It also meets at least one of the following conditions: The top of the drainage bracket is equipped with a horizontal bubble; The drainage support is a liquid column pressure gauge; The drainage bracket is provided with multiple locking positions along its own height direction, and the dropper bracket is locked in a corresponding locking position by fastening screws; The dropper holder is configured to be manually adjusted in its vertical position.
10. The drainage balancing system according to claim 1, characterized in that, The visual tracking system includes a camera and an image processing unit; the camera is mounted on the back of the drainage bracket; the dropper is mounted on the front of the drainage bracket; the camera is used to capture an image of the region of interest on the target object; the image processing unit is used to obtain the position information of the marker points on the region of interest based on the image of the region of interest.