28 results about "Ventricle" patented technology

The invention discloses an accurate regulation and control instrument for ventricular drainage, and relates to the technical field of neurosurgical medical equipment, the accurate regulation and control instrument for ventricular drainage comprises a fish-shaped clamp, the clamp is formed by connecting symmetrical arc-shaped clamping blocks through a rotating shaft, the inner wall of the clamp is provided with a fixing groove and an arc-shaped air bag I, and the air bag I is embedded with a flow sensor and is provided with semispherical anti-skid grains; the clamp is matched with an elastic plate to form fixation, a controller, an air pump and an electromagnetic valve are arranged on the side portion of the clamp, a second pressing type air bag is additionally arranged, an air path is matched with a pressure gauge, and all the components are in signal connection with the controller. During work, the first air bag is inflated to flexibly extrude the drainage tube, the flow sensor collects data in real time, and the controller is linked with the air pump and the electromagnetic valve to regulate and control the opening degree of a tube cavity in a closed loop mode so as to accurately control flow. Continuous drainage is guaranteed through double-mode air supply, operation is convenient through a convenient clamping structure, the precision is high, the device is suitable for drainage tubes of multiple specifications, the medical care load is reduced, and the clinical treatment safety and continuity are improved.

This invention discloses a method for constructing an early prediction model of hydrocephalus secondary to intraventricular tumors based on the dynamic changes of inflammatory factors after surgery, belonging to the field of medical data processing and model construction. The method includes: acquiring the concentration values ​​of inflammatory factors and the hydrocephalus outcome of biological samples at multiple postoperative time points; calculating quantitative characteristic parameters characterizing the dynamic evolution of the inflammatory response, such as the dynamic change rate, cumulative load, and acceleration, based on the concentration values; and training a deep learning model using the quantitative characteristic parameters and clinical baseline data as input features, with the hydrocephalus outcome as the label. This invention achieves early quantitative warning of hydrocephalus risk, significantly improving the accuracy, sensitivity, and specificity of prediction. It solves the technical problem of existing technologies relying on post-operative monitoring methods such as imaging and lacking early biochemical warning capabilities.

The application relates to a perfusion guide device, a method, a ventricular assist system, a storage medium and equipment for a ventricular assist device, which comprises a pressure detection module, a state judgment module and an auxiliary confirmation module, wherein the pressure detection module is used for detecting the pipeline pressure after at least one pipeline exhaust operation is completed, the state judgment module is used for comparing the detected pressure value with a preset threshold value to identify the leakage or blockage state of the pipeline, and the auxiliary confirmation module is used for instructing to disconnect the connection between the perfusion pump and the catheter pump when it is confirmed that the reason for excluding the pipeline blockage cannot be confirmed, and is also used for controlling the infusion motor to drive the perfusion pump to operate at a preset rotating speed for a preset auxiliary confirmation time period, and judging whether the blockage is located in the perfusion pump pipeline or the catheter pump pipeline based on whether the measured pressure value during the operation exceeds the preset threshold value.

The application provides a pump shell, which comprises a first shell, a second shell and an assembling part, the second shell is connected with the first shell to form a receiving cavity capable of receiving an impeller, at least one of the first shell and the second shell is provided with a groove with an opening facing the receiving cavity, the groove has a first side surface, the assembling part comprises a connecting assembling surface and a second side surface; the assembling part is accommodated in the groove, the assembling surface can be opposite to the surface of the impeller received in the receiving cavity, and the second side surface is in contact with the first side surface.The pump shell provided by the application is installed on at least one of the first shell and the second shell through the additionally provided assembling part, thus the first shell, the second shell and the assembling part can be machined respectively, the flatness of the assembling surface can be controlled, the basis for the substantial improvement of the flatness of the assembling surface is provided, and the thrombus can be avoided on the basis of improving the overall operation accuracy of the ventricular assist device.The application further provides a pump body and a ventricular assist device.

The invention relates to a blood pump controller and a ventricular assist system. The blood pump controller comprises a controller body, a connector assembly and a rotation stopping piece. The controller body is provided with an interface. The connector assembly comprises a connector and a connecting piece, the connector can be inserted into the connector, one end of the connector is used for being electrically connected with the blood pump, the connecting piece can be rotationally arranged at the other end of the connector, and the connecting piece rotates relative to the connector so that the connecting piece can be clamped with or separated from the controller body. And the connector can be prevented from being separated from the interface when the connecting piece is clamped with the controller body. The rotation stopping piece is connected with the connecting piece and rotates synchronously with the connecting piece, and the rotation stopping piece can abut against the controller body so as to prevent the connecting piece from continuously rotating relative to the connector in the direction separated from the controller body. According to the blood pump controller, the connection reliability of the connector assembly and the controller body can be improved, and the risk that the blood pump controller is disconnected from the blood pump is reduced.

This application relates to a ventricular connection mechanism and a ventricular assist system. The ventricular connection mechanism includes a suture ring, a clamping assembly, and a stop. The clamping assembly includes an annular disk and a clamping ring. The annular disk has a first opening, and the clamping ring is fixedly connected to the annular disk. The clamping ring has a second opening, the position of which corresponds to the position of the first opening. The size of the second opening is adjustable to adjust the inner diameter of the clamping ring. The stop is connected to the annular disk, and the position of the stop corresponds to the position of the first opening, so that the stop and the annular disk together form a closed annular structure. A fixing structure is provided on the annular structure, which can fix the annular structure to the suture ring. The fixing structure is arranged around the inner hole of the suture ring. The above-described ventricular connection mechanism and ventricular assist system can reduce the probability of blood leakage from the opening of the annular disk and the gap between the suture ring and the annular disk.

This application discloses a blood pumping device and a ventricular assist system. The blood pumping device includes a motor and an infusion tube. The motor includes a housing, a rotor assembly, and a distal end cap. The housing encloses a receiving cavity, and a first flow passage is provided inside the housing. The distal end cap is connected to the distal end of the housing and has a first shaft hole extending axially. The rotor assembly includes a rotating shaft, at least a portion of which extends out of the receiving cavity through the first shaft hole. The gap between the rotating shaft and the contour surface of the first shaft hole forms a second flow passage, which communicates with the first flow passage. The infusion tube is connected to the proximal end of the motor and has a third flow passage communicating with the first flow passage. The flow rates Q1 of the first flow passage, Q2 of the second flow passage, and Q3 of the third flow passage satisfy the formula where k1∈(0,2], k2∈(0,2], k3∈(0,2], Q x ∈[10, 50].

This invention provides a pump housing comprising a first housing, a second housing, and an assembly. The second housing is connected to the first housing to form a receiving cavity capable of accommodating an impeller. At least one of the first and second housings has a groove with an opening facing the receiving cavity. The groove has a first side annular surface. The assembly includes a connected mounting surface and a second side annular surface. The assembly is accommodated in the groove, with the mounting surface facing the surface of the impeller housed within the receiving cavity, and the second side annular surface contacting the first side annular surface. The pump housing provided by this invention, by additionally providing the assembly to be installed in at least one of the first and second housings, allows for separate processing of the first housing, the second housing, and the assembly. This enables control over the flatness of the mounting surface, providing a basis for significant improvement in the flatness of the mounting surface and preventing thrombosis while improving the overall operational accuracy of the ventricular assist device. This invention also provides a pump body and a ventricular assist device.

This invention relates to a device for transferring cerebrospinal fluid (CSF) from the ventricles of the brain to body cavities in other parts of the human body. Specifically, this invention discloses a CSF drainage catheter component and a drainage system. The CSF drainage catheter component includes: a catheter body with multiple rows of main long holes arranged circumferentially and axially spaced on its wall; multiple protrusions on the two linear holes of the main long holes to divide the main long holes into multiple micropores; the wall occupied by each row of main long holes is a first segment, and the wall between each two adjacent rows of main long holes is a second segment; a driving component for driving one of the two adjacent second segments to move axially relative to the other second segment, so that one end of the main long hole moves axially relative to the other end in the circumferential direction, thereby causing the two linear holes of the main long hole to move relative to each other in the circumferential direction, thereby causing the protrusions to disturb the interior of the main long hole.

The utility model relates to a height-adjustable drainage fixing device and a drainage system. The drainage fixing device comprises a long shaft, a fixing piece, a positioning piece and a connecting piece, the long shaft is a long strip body; buckle holes are formed in the long shaft, and the multiple buckle holes are distributed in the length direction of the long shaft; a fixing needle is arranged on the fixing piece; the long shaft penetrates through the fixing piece, and the fixing needle on the fixing piece penetrates through the buckle hole. The upper end of the long shaft is reversely folded and then is connected with the fixing piece; the positioning piece is connected with the long shaft; the connector is connected to the lower end of the long shaft; a connecting hole is formed in the connecting piece and used for being connected with a ventricular drainage bag. The drainage system comprises the drainage fixing device. Compared with the prior art, by arranging the long shaft and the fixing piece, the height is convenient to adjust, the height adjustment is more accurate compared with direct hanging of articles such as gauze and strings, safer and more stable connection can be achieved by arranging the connecting piece, and the positioning piece is arranged, so that the height adjustment is more convenient. And the zero scale and the external auditory meatus opening of the patient can be positioned at the same horizontal position.

The application discloses a detachable leadless pacemaker system which can pace cardiac conduction bundle. The specific embodiment of the system comprises: a detachable leadless pacemaker, the detachable leadless pacemaker is provided with a first data interface; a passive leadless pacemaker, the passive leadless pacemaker is provided with a second data interface; a signal line, which is connected with the first data interface and the second data interface respectively, so as to realize power supply of the detachable leadless pacemaker for the passive leadless pacemaker and data communication between the two. The detachable leadless pacemaker can be arranged in a ventricle to realize atrioventricular dual chamber pacing with the passive leadless pacemaker arranged in an atrium. An unpackaged circuit can be arranged in the passive leadless pacemaker, which is used as an electrode carrier for sensing atrial electrical signals and implementing electrical stimulation. The detachable leadless pacemaker and the passive leadless pacemaker are connected by a tensile-resistant reinforcing line, which is used for recovery operation when the detachable leadless pacemaker is repositioned.

The utility model discloses a balloon catheter with a special-shaped guide wire, which comprises a guide tube, an expansion balloon is fixedly connected outside the guide tube, the expansion balloon is connected and communicated with the guide tube, the guide wire is fixedly mounted inside the guide tube, the guide wire comprises a guide wire main body, and the guide wire main body is provided with a guide hole. A stepless variable-diameter guide wire is fixedly connected to the front part, the head part of the stepless variable-diameter guide wire is arranged in a double-bend shape, and the head part of the stepless variable-diameter guide wire is provided with a first bend and a second bend. The design of the electrode variable-diameter guide wire provides gradually-changed rigidity and flexibility, particularly, the double-bend design of the head comprises the first bend and the second bend, so that the flexibility of the guide wire is enhanced, the double-bend structure can avoid excessive linear stretching when the guide wire passes through a zigzag blood vessel or ventricle, friction force between the guide wire and the blood vessel wall is reduced, and the guide wire is more flexible. Therefore, the adaptability of the guide wire and the trafficability of the guide tube are improved.

The application discloses a marker-free anti-occlusion ventricle and intracranial hematoma puncture AR navigation method and system based on monocular vision, and belongs to the technical field of medical augmented reality. The method comprises the following steps: acquiring a preoperative three-dimensional medical image model of a patient; collecting a video in real time by using a monocular camera of a consumer-level device, and constructing a three-dimensional model of the body surface of the patient by using a three-dimensional reconstruction algorithm such as neural rendering; eliminating visual interference such as a surgical drape and strong light reflection by using an optical correction technology; adopting a time sequence hybrid registration mechanism comprising a global locking period, an inertial maintenance period and a local correction period, so as to accurately align the reconstructed model with the image model, and realize continuous tracking when the visual signal is lost; and finally generating an augmented reality view for navigation. The method does not need an external tracker and a surgical marker, and can realize high-precision, anti-occlusion and real-time navigation by using a portable device, so that the cost and use threshold of surgical navigation are significantly reduced, and the method has a very high clinical application value.

The present application relates to a device for transferring cerebrospinal fluid in the ventricle to the body cavity of other parts of the human body, and specifically discloses a device for draining water in the ventricle, which comprises a base for being attached to a bone window of a skull, a flow collection cavity arranged on the base, a liquid outlet connector in communication with the flow collection cavity, and a flow guide hose connected to the liquid outlet connector; a tip axially away from the base; a drainage main component for guiding cerebrospinal fluid in the ventricle to the flow collection cavity; the drainage main component comprises a plurality of micro-catheters; the proximal end and the distal end of each micro-catheter are respectively attached to the base and the tip, and the micro-central hole of each micro-catheter is in communication with the flow collection cavity at the proximal end; all the micro-catheters are arranged in multiple circles in the circumferential and radial directions; the micro-catheter wall of each micro-catheter is provided with a micro-drainage structure penetrating the micro-central hole, and the micro-drainage structure is arranged in the circumferential and axial directions of the micro-catheter wall to allow cerebrospinal fluid to enter the micro-central hole through the micro-catheter wall.

The application relates to a perfusion liquid conveying device and a ventricular assist system. The perfusion liquid conveying device comprises a base, a rotating shaft, a bearing assembly and a buffer assembly, the base is internally provided with a perfusion channel, the bearing assembly comprises a plurality of bearings, the inner ring and the outer ring of the bearing have a flow gap therebetween, the buffer assembly is provided with a reflux cavity, the perfusion channel is an inflow channel of perfusion liquid, the perfusion liquid mixes with refluxed blood in the perfusion channel to form mixed liquid, the mixed liquid passes through the flow gap and the reflux cavity to be refluxed, part of the reflux cavity extends in the axial direction, and part of the reflux cavity extends in a first direction. The reflux cavity itself constitutes a zigzag loop, the reflux cavity can form a buffering effect on the mixed liquid, the flow of the mixed liquid in the perfusion liquid conveying device is inhibited, thereby the reflux of blood to the perfusion liquid conveying device is inhibited, the structural damage problem of the perfusion liquid conveying device caused by the reflux of blood is improved, and the working reliability of the perfusion liquid conveying device is improved.

The application provides a multi-modal head image registration method based on stable markers, aiming at solving the problems of insufficient spatial alignment accuracy between multi-modal medical images and poor robustness of traditional registration methods in cross-modal scenarios. The method adopts a multi-anatomical marker cascade strategy, realizes accurate registration from local to global through dual stable anatomical structures of ventricle and skull. The method covers S1. acquiring a multi-modal head image dataset; S2. preprocessing the image data; S3. extracting the septum pellucidum cavity and the frontal horn of the lateral ventricle in the head ventricle as the first level marker points; S4. local registration based on the ventricle marker points, obtaining a primary transformation matrix and applying it to the global image; S5. extracting the frontal pole, occipital pole and longitudinal fissure of the brain in the head skull as the second level marker points; S6. local registration based on the skull marker points, obtaining a refined transformation matrix and applying it to the global image; S7. calculating the registration accuracy evaluation index to verify the registration effect. The application uses two types of anatomical structures with stable morphology and high contrast in cross-modal imaging, i.e. ventricle and skull, as the registration reference, and gradually optimizes the spatial transformation through the cascade registration strategy, which significantly improves the registration accuracy and robustness of multi-modal head images, and provides a reliable spatial alignment basis for subsequent clinical diagnosis, treatment planning and image analysis.

The invention discloses a neurosurgery ventricular puncture positioning external fixing frame, and relates to the technical field of medical equipment, in particular to a neurosurgery ventricular puncture positioning external fixing frame which comprises an arc-shaped positioning base, a bonding layer is arranged at the lower end of the arc-shaped positioning base, an elastic bandage is arranged at the side end of the arc-shaped positioning base, and the arc-shaped positioning base is used for being fixed to the head of a patient. The upper end of the base is provided with a sliding guide rail sliding in the direction of the center line or the coronary seam, and the guide rail is fixed through a locking structure. The inner side of the guide rail is connected with a puncture needle fixing sleeve through an angle adjusting clamp, and the angle adjusting clamp can adjust and lock the angle of the puncture needle, so that the puncture needle can be accurately aligned with target positions such as an external auditory canal connecting line, a hairline or a position 2cm in front of a coronary suture and a position 3cm beside a midline. A replaceable elastic lining is arranged in the puncture needle fixing sleeve so as to be matched with puncture needles of different specifications. A scale area is arranged on the surface of the base, and the angle adjusting clamp is integrated with an angle dial, so that accurate positioning and reproduction are facilitated. The device is stable in structure, easy and convenient to operate and capable of effectively improving the puncture precision and safety.

The application provides a puncture needle in the technical field of puncture and puncture technology, and the puncture needle comprises a needle tube, a side tube and a support guide wire, a blade part is arranged at the distal end of the needle tube, and a syringe interface is arranged at the proximal end of the needle tube. One end of the side tube is fixedly arranged at the proximal end of the needle tube, and the inner cavity of the side tube is in communication with the inner cavity of the needle tube. The support guide wire is arranged in the inner cavities of the side tube and the needle tube, the support guide wire is arranged from the inner cavity of the side tube to the distal end direction of the inner cavity of the needle tube, and a blunt head is arranged at the end of the support guide wire close to the distal end, wherein the blunt head is adapted to be switched between a puncture state of being retracted into the inner cavity of the needle tube and a protection state of being extended out of the inner cavity of the needle tube. When the puncture needle enters the pericardial cavity, the blunt head is controlled to be extended out of the inner cavity of the needle tube, so that the blunt head shields the blade part of the needle tube, at this time, the puncture needle is shielded by the blunt head, a protection effect is achieved, direct contact between the puncture needle and the atrium, the ventricle or the coronary artery is avoided, and the puncture needle is prevented from piercing the atrium, the ventricle or the coronary artery.

This invention discloses a quantitative alarm device for lumbar ventricle drainage, comprising a mounting frame, a weighing device, a color sensor, and a control circuit. The weighing device is mounted on the mounting frame and suspends a collection bag. The weighing device is equipped with a timing module to monitor and record the weight change of the collection bag per unit time. The color sensor is mounted on the side of the mounting frame and positioned opposite the collection bag. The control circuit includes an alarm module and is electrically connected to the timing module, the weighing device, and the color sensor. When the color sensor detects a color change in the collection bag, the alarm module triggers an alarm. The advantage of this invention is its ability to monitor the drainage rate, improving the safety of external lumbar ventricle drainage.

The application relates to a ventricular pressure regulating device and a control method thereof. The ventricular pressure regulating device comprises: a balloon assembly, the balloon assembly comprising a balloon and a bandage, the bandage being used for fixing the balloon outside the ascending aorta, and the balloon being connected with an air pipe; a gas filling pump and a gas pumping pump, the gas filling pump being communicated with a gas filling tank, the gas pumping pump being communicated with a gas pumping tank, and the gas filling tank and the gas pumping tank being connected to the air pipe; and a control device, the control device being connected to the gas filling pump and the gas pumping pump, and being used for controlling the gas filling pump and the gas pumping pump to regulate the air pressure in the balloon. The application can greatly reduce the infection risk; the control device can control the gas filling pump and the gas pumping pump to regulate the air pressure in the balloon, the precision is better, and discomfort is not easily caused; and the gas filling tank and the gas pumping tank can buffer the gas filling and gas pumping, so that the gas filling pump and the gas pumping pump do not need to work all the time, and the technical problems of the high infection risk and the easy causing of discomfort in the related art are solved.

The present application relates to the field of image processing, in particular to a fetal hydrocephalus three-dimensional reconstruction and operation planning method based on multi-modal, comprising: obtaining key points in three-dimensional point cloud and ventricle posture at each time of three-dimensional reconstruction, predicting ventricle posture at next time of three-dimensional reconstruction, and obtaining prediction residual; clustering the key points of historical three-dimensional reconstruction based on the prediction residual to obtain all categories; and based on the categories, further deleting and adding the obtained three-dimensional point cloud at the time of three-dimensional reconstruction again. The present application avoids the errors of matching and fusion process and the errors of prediction process at the time of three-dimensional reconstruction, and improves the accuracy of three-dimensional reconstruction result.

The application provides a skull fixing device for limiting the angle of a ventricle mirror, which comprises a skull fixing disc, a bellows component, a cross slide rail and an endoscope clamping component; the skull fixing disc is used for being fixed on the skull of a subject; a through hole is formed in the middle of the skull fixing disc; the through hole surrounds a bone window formed on the skull of the subject; the bellows component is a flexible tube, which can be bent; the angle of the ventricle mirror is coarsely adjusted by bending the bellows component; the lower end of the bellows component is detachably installed on the skull fixing disc; the cross slide rail is installed on the upper end of the bellows component, and the endoscope clamping component is installed on the cross slide rail; the angle of the ventricle mirror is finely adjusted by adjusting the position of the endoscope clamping component on the bellows component.

The utility model discloses a brain drainage pipeline fixing hood which effectively achieves the purpose of fixing different drainage positions of a ventricle and comprises a hood body, a fixing belt and a binding belt. The lower side of the cover body is fixedly connected with a first covered edge in a front-back symmetry mode, and the lower side of the cover body is fixedly connected with a second covered edge in a left-right symmetry mode. The mask body comprises a plurality of annular belts and a plurality of semi-annular belts, each annular belt is horizontally arranged, each semi-annular belt and the annular belts are arranged in a crossed mode to form a net-shaped structure, and each semi-annular belt is fixedly connected with the corresponding annular belt; the drainage tube fixing device is novel in structure, ingenious in conception and easy and convenient to operate, a drainage tube can be effectively clamped and fixed, the function of secondary fixing of the drainage tube is added, the drainage tube fixing device can be stably fixed to the head of a patient, and the situation that the drainage tube is bent is reduced.

The utility model provides a ventricular assist system and a connecting assembly thereof, the connecting assembly comprises a main body, a first connecting piece connected with a first blood pump, a second connecting piece connected with a second blood pump and a sealing assembly, the main body can be electrically connected with an external device, and the main body is provided with a first electric connecting end and a second electric connecting end; the first connecting piece can be detachably connected with the main body, and when the first connecting piece is connected with the main body, the first connecting piece is electrically communicated with the first electric connecting end and is hermetically connected with the first electric connecting end; the second connecting piece can be detachably connected with the main body, and when the second connecting piece is connected with the main body, the second connecting piece is electrically communicated with the second electric connecting end and is hermetically connected with the second electric connecting end; the sealing assembly can be detachably connected with the main body, and when the sealing assembly is connected with the main body, the sealing assembly covers at least one of the first electric connection end and the second electric connection end and seals at least one of the first electric connection end and the second electric connection end. The ventricular assist system and the connecting assembly thereof can be used in various scenes.

Disclosed herein are a blood-pumping apparatus and a ventricular assist system. The blood-pumping apparatus comprises a motor and a perfusion tube. The motor comprises a housing, a rotor assembly, and a distal end sealing cover. The housing defines an accommodating cavity. A first circulation pipeline is disposed in the housing. The distal end sealing cover is connected to the distal end of the housing and is provided with a first shaft hole penetrating in an axial direction. The rotor assembly comprises a rotating shaft. At least part of the rotating shaft passes through the first shaft hole and extends out of the accommodating cavity. A gap between the rotating shaft and a contour surface of the first shaft hole forms a second circulation pipeline in communication with the first circulation pipeline. The perfusion tube is connected to the proximal end of the motor, and a third circulation pipeline in communication with the first circulation pipeline is disposed in the perfusion tube. The flow rate Q1 of the first circulation pipeline, the flow rate Q2 of the second circulation pipeline, and the flow rate Q3 of the third circulation pipeline satisfy the following formula: k1 / Q1+k2 / Q2+k3 / Q3=1 / Qx, wherein k1∈(0,2], k2∈(0,2], k3∈(0,2], and Qx∈[10,50].

This invention discloses a ventriculoscope guidance and positioning device, comprising: a holding member for attaching to a bone window of the skull, the holding member having a ball-and-socket joint opposite to the bone window; a guiding member including a guide sleeve and a ball head formed at the lower end of the guide sleeve, the guide hole of the guide sleeve penetrating the ball head, the ball head being embedded in the ball-and-socket joint and rotatable within the ball-and-socket joint; an endoscope passing through the guide hole and entering the ventricle through the bone window; a nut assembly including a first nut component and a second nut component screwed onto the guide sleeve, the second nut component being located below the first nut component; a clamping member disposed in the guide hole, the endoscope passing through the clamping member, the clamping member being driven by the twisting action of the first nut component to clamp and fix the endoscope or release the endoscope; and a locking mechanism being driven by the twisting action of the second nut component to fix or release the ball head.

1. The name of the design product: Interventional pump. 2. The use of the design product: for controlling a medical device, for example, the medical device can be a ventricular assist device. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

The invention discloses a ventricular puncture positioning sterile film based on an external auditory canal-inner canthus coordinate system, and relates to the technical field of medical instruments, the ventricular puncture positioning sterile film comprises a sterile film body, and sliding grooves are formed in the positions, close to the edges of the two sides, of the outer surface of the sterile film body. According to the ventricular puncture positioning sterile pasting film based on the external auditory canal-inner canthus coordinate system, when a patient is subjected to lateral ventricular puncture positioning, a medical worker enables the two clamps on the surfaces of the two arch-shaped sliding rails to be accurately aligned with the external auditory canals on the two sides of the patient to form an external auditory canal datum plane system, the external auditory canal datum plane system stretches across the external auditory canals on the two sides to form an immovable bony datum, and then the external auditory canal-inner canthus coordinate system is obtained by referring to scale marks; the angle of the magnetic attraction puncture guide cylinder is adjusted to point to the inner canthus of a patient, the neodymium iron boron magnetic ring arranged in the magnetic attraction puncture guide cylinder can generate 0.5 N attraction force to attract an external puncture needle and prevent deviation, it is ensured that a needle head is attached to the inner wall of the guide cylinder in a gapless mode, the needle is slowly inserted in the guide cylinder direction, and the needle inserting depth is controlled according to surgical specifications; the practicability of the ventricular puncture positioning sterile film based on the external auditory canal-inner canthus coordinate system is improved.