78 results about "Ventricle" patented technology

The invention discloses a stereotactic puncture path planning method based on reinforcement learning. The stereotactic puncture path planning method comprises the following steps: S1, constructing a risk weight map; s2, establishing a puncture constraint set; s3, performing global search on the frog group initial population by adopting a discrete frog leaping optimization algorithm to obtain an initial puncture path set with consistent constraints; s4, mapping the real-time navigation state vector template into a state set; s5, when Q value updating is executed, strategy smooth regularization is introduced, and state-action-award closed-loop iteration is completed; and S6, when the simulation navigation system judges that the puncture instrument reaches the target ventricle coordinate or the navigation state vector triggers the risk threshold early warning of the puncture constraint set, the final simulated refined puncture path is output to a surgical navigation interface. The probability of damaging a key structure in an operation is obviously reduced.

The application provides an ultrahigh frequency electrocardiogram mapping analysis method and system, through a Hilbert transform algorithm, time-frequency characteristics of high-frequency electrocardiogram signals can be retained, and influence of complex clutter on the high-frequency electrocardiogram signals can be reduced to the maximum extent; through drawing of an electrical activation map, time-space distribution of electrical activity is described in a graphical manner, and atrium / ventricle asynchrony or myocardial ischemia problems can be more accurately revealed; through transfer learning, a model can better understand and process new data, and the problem of poor model training effect caused by less high-frequency electrocardiogram data is effectively solved; through construction of an intelligent diagnosis system, the automation level of diagnosis is improved, and auxiliary diagnosis of inputting an electrical activation map and outputting a classification result is realized.

The invention relates to an instrument for transferring cerebrospinal fluid in a ventricle into a body cavity of other parts of a human body, and particularly discloses an intraventricular hydrops drainage device which comprises a base used for being attached to a bone window of a skull, a confluence cavity and a liquid outlet connector communicated with the confluence cavity are arranged on the base, and the liquid outlet connector is provided with a liquid inlet and a liquid outlet. The flow guide hose is connected to the liquid outlet joint; a tip axially remote from the base; the drainage main body component is used for guiding cerebrospinal fluid in the ventricle to the confluence cavity; the drainage main body component comprises a plurality of micro-catheters; the near end and the far end of each micro catheter are attached to the base and the end respectively, and the near end of the micro central hole of each micro catheter is communicated with the confluence cavity; the micro-conduits are arranged in a plurality of circles in the circumferential direction and the radial direction; a micro drainage structure communicated with the micro central hole is arranged on the tube wall of each micro catheter, and the micro drainage structures are arranged in the circumferential direction and the axial direction of the tube wall of the micro catheter so as to allow cerebrospinal fluid to enter the micro central hole through the tube wall of the micro catheter.

The invention relates to a ventricle connecting mechanism and a ventricle auxiliary system. The ventricle connecting mechanism comprises a suture ring, a clamping ring, a pressing ring and a connecting piece. The suture ring is provided with a mounting hole for an inlet pipe of the ventricular auxiliary device to penetrate through, and a mounting groove surrounding the mounting hole is formed in the suture ring. And the clamping ring is embedded in the mounting groove. The inner diameter of the clamping ring is adjustable, and the hole diameter of the mounting hole can be adjusted by adjusting the inner diameter of the clamping ring. The pressing ring is arranged on the suture ring and abuts against the clamping ring so that the clamping ring can be limited in the installation groove. The connecting piece is fixedly connected with the suture ring and the pressing ring. According to the ventricle connecting mechanism, the clamping ring is pressed against the clamping ring through the pressing ring, and the connecting piece is arranged to fixedly connect the suture ring and the pressing ring, so that the clamping ring is clamped between the pressing ring and the bottom wall of the mounting groove, and the risk that the clamping ring falls off from the suture ring is reduced.

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.

The invention relates to an instrument for transferring cerebrospinal fluid in a ventricle into a body cavity of other parts of a human body, and particularly discloses a cerebrospinal fluid drainage catheter component and a drainage system.The cerebrospinal fluid drainage catheter component comprises a catheter body, a plurality of rows of main long holes which extend in the circumferential direction and are distributed at intervals in the axial direction are formed in the wall of the catheter body, and a plurality of drainage holes are formed in the main long holes; a plurality of protruding parts are arranged on the two linear hole walls of the main long hole so that the main long hole can be divided into a plurality of micro holes. The pipe wall occupied by each row of main long holes is a first section, and the pipe wall between each two adjacent rows of main long holes is a second section; the driving component is used for driving one of every two adjacent second sections to axially move relative to the other second section, so that one end, in the circumferential direction, of the main long hole axially moves relative to the other end of the main long hole, and the two linear hole walls of the main long hole generate relative dislocation movement in the circumferential direction; therefore, the protruding part disturbs the interior of the main long hole.

The invention provides a position monitoring device and method of a catheter pump and a ventricular assist device and equipment, and relates to the field of medical instrument control. The position monitoring device comprises a pressure difference monitoring module, a position judgment module and a position detection module, the differential pressure monitoring module is used for calculating the differential pressure of the conduit pump according to the rotating speed of the motor and the flow of the conduit pump; wherein the motor drives the conduit pump to work; the position judgment module is used for judging whether the position of the catheter pump is correct or not according to the pressure difference of the catheter pump; and the position detection module is used for determining the wrong position of the conduit pump according to the fluid outlet pressure of the fluid outlet of the conduit pump under the condition that the position of the conduit pump is incorrect. By using the position monitoring device provided by the embodiment of the invention, whether the position of the catheter pump of the ventricular assist device (VAD) is correct or not can be monitored in real time, and a foundation is laid for providing stable auxiliary flow for the ventricular assist device.

The utility model discloses a rotor assembly, a motor and a ventricular auxiliary blood pumping device. The rotor assembly comprises a permanent magnet which comprises a body, a first cavity enclosed by the body, and a protective layer covering the outer surface, back to the first cavity, of the body; a part of the rotating shaft extends into the first cavity, a gap cavity is formed between the part of the rotating shaft and the permanent magnet, and the two ends, opposite in the axial direction, of the rotating shaft extend out of the permanent magnet; and the sealing connector blocks the gap cavity along two opposite ends of the axial direction of the gap cavity, and the sealing connector is respectively connected with the protective layers at the two ends in a sealing manner, so that the surface of the body is isolated from the external environment. The rotor assembly blocks the two axially opposite ends of the gap cavity through the sealing connectors and is in sealing connection with the protection layers at the two ends, the surface of the body is isolated from the external environment, and the permanent magnets are effectively protected against corrosion. And meanwhile, the inner surface of the body has high processing precision and can be assembled with a rotating shaft to obtain a high-precision rotor assembly, so that the yield of the motor is improved.

To improve the performance of a ventricular assist device.SOLUTION: Apparatus and methods are described including an impeller (50) that includes a proximal bushing (64) and a distal bushing (58). Two or more helical elongate elements (52) extend from the proximal bushing (64) to the distal bushing (58). An axial structure (54) is disposed inside the two or more helical elongate elements (52), and along an axis around which the helical elongate elements (52) are wound. The impeller (50) includes an impeller-overexpansion-prevention element (72). The impeller-overexpansion-prevention element is a single integrated structure that includes a ring (73) disposed around the axial structure (54), and a plurality of elongate elements (67). Each of the elongate elements (67) extends from the ring to a respective helical elongate element (52) and is coupled to each helical elongate element (52) so as to prevent radial expansion of the impeller (50). Other applications are also described.SELECTED DRAWING: Figure 3E

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.

Aspects of the disclosure include transcatheter delivery devices for delivery and deployment of a cardiac prosthesis, such as a prosthetic heart valve. Various embodiments include a one or two part capsule for maintaining the prosthesis during delivery. Embodiments include a flexible capsule that can deflect, either automatically or in response to contact with the anatomy, to reduce a delivery depth within a ventricle necessary to fully unsheathe the prosthesis, which increases the patient population and valve locations suitable for prosthesis delivery with the delivery device.

The present application relates to the field of medical device technology, and in particular to a perfusion and drainage system and control method. The system includes: a perfusion unit, a drainage unit, an interactive control unit, and a drainage tube; the interactive control unit is used to obtain intracranial pressure parameters and drainage volume parameters of the patient's ventricles, dynamically determine the current perfusion and drainage mode based on the intracranial pressure parameters and drainage volume parameters, and generate control instructions corresponding to the current perfusion and drainage mode. The current perfusion and drainage mode is one of the normal perfusion and drainage mode, the dredging mode, and the drainage mode. The dredging mode is used to remove the blockage of the drainage tube; the drainage tube is used to connect the perfusion unit and the drainage unit to the patient's ventricles respectively; the perfusion unit and the drainage unit are used to receive the control instructions sent by the interactive control unit, and perfuse and / or drain the patient's ventricles according to the control instructions. The present application simplifies the perfusion and drainage control process and improves treatment efficiency.

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 relates to a medical image segmentation method and device, computer equipment and a storage medium, wherein the medical image segmentation method comprises the following steps: acquiring a threshold image of a medical image; determining a plurality of connected domains in the threshold image, and generating a connected domain image corresponding to each connected domain; matching the threshold image with a standard template image containing a ventricle region label to obtain an initial ventricle mask image; further, comparing each connected domain image with the initial ventricle mask image, and selecting the connected domain image for fusion based on the comparison result to obtain a target ventricle mask image, thereby solving the problem that the spatial position and shape information of the ventricle is ignored, resulting in inaccurate image segmentation results, and improving the accuracy of the image segmentation result.

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 application discloses an intracranial ventricle temporal horn-frontal horn bypass shunt pipeline, which comprises a three-way flow guide pipe, a frontal horn liquid passage pipe and a connecting joint, the first end of the three-way flow guide pipe is arranged in the ventricle temporal horn, the second end of the three-way flow guide pipe is detachably connected with one end of the frontal horn liquid passage pipe through the connecting joint, the connecting joint is used for blocking / communicating the second end of the three-way flow guide pipe and the frontal horn liquid passage pipe, the other end of the frontal horn liquid passage pipe is arranged in the ventricle frontal horn, and the third end of the three-way flow guide pipe is used for connecting a liquid storage bag under the scalp or leading out of the scalp. The bypass shunt pipeline of the application adopts the three-way flow guide pipe, the third end of the three-way flow guide pipe is used for connecting the liquid storage bag or leading out of the scalp, the third end of the three-way flow guide pipe can be used for taking cerebrospinal fluid samples for testing, thereby assisting clinical diagnosis; meanwhile, the end can be used for implementing liquid pumping and pressure reduction operation, so as to reduce intracranial pressure.

The present application discloses a ventricular assist system, a flushing method, a consumable material, a control apparatus, and a control device for a medical catheter pump system, and belongs to the technical field of medical devices. In the ventricular assist system, the first three-way valve includes a first valve port, a second valve port, and a third valve port, wherein the first valve port is connected to a first flushing path driven by the flushing pump assembly, and the second valve port is connected to a first flushing interface of the medical catheter pump; the second three-way valve includes a fourth valve port, a fifth valve port, and a sixth valve port, wherein the fourth valve port is connected to a second flushing path driven by the flushing pump assembly, and the fifth valve port is connected to a second flushing interface of the medical catheter pump.

This application relates to ventricular assist devices. Described herein are devices and methods, including a blood pump (20) configured to be placed within a body of a subject, the blood pump including an impeller (50) and a frame (34) disposed about the impeller, the impeller including proximal and distal bushings (64, 58), the frame including proximal and distal bearings (116, 118). An axial shaft (92) passes through the proximal and distal bearings (116, 118) of the frame and the proximal and distal bushings (64, 58) of the impeller (50). The impeller (50) defines a radially constrained configuration in which the impeller (50) is introduced into the body of the subject and a non-radially constrained configuration in which the impeller (50) is configured to pump blood within the body of the subject. The impeller (50) changes from its radially constrained configuration to its non-radially constrained configuration by sliding the distal bushing (58) over the axial shaft (92). Other applications are also described herein.

The utility model provides a ventricular puncture auxiliary support, and relates to the ventricular puncture support field, the ventricular puncture auxiliary support comprises a locking assembly, the top of the locking assembly is fixedly connected with a puncture needle guide groove, the puncture needle guide groove is used for guiding a puncture needle, the surface of the locking assembly is also provided with three positioning assemblies, the number of the positioning assemblies is three, and the positioning assemblies are used for positioning the ventricular puncture auxiliary support. The locking assembly is arranged on the positioning assembly and used for positioning the double ear canals and the eyebrow arch respectively, the locking assembly comprises a fixing block, a first guide hole, a second guide hole, a first threaded hole and a first fastening bolt, and the first guide hole and the second guide hole are used for guiding the positioning assembly; by arranging the guide rail, the positioning block, the sliding groove, the second threaded hole and the second fastening bolt, the effect of positioning the puncture position is achieved, the connecting line of the left ear canal and the right ear canal and the positioning of the eyebrow arch can be achieved through the cooperation of the three positioning assemblies, and therefore deviation of the puncture position can be prevented, and the puncture accuracy is improved. And the success rate of puncture is effectively improved.

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.

The application provides a brain cortex thickness morphological analysis method and system of MR images, and relates to the technical field of medical image data processing.The method comprises the following steps: obtaining a head three-dimensional high-resolution magnetic resonance T1 weighted image sequence of a patient with intractable epilepsy to be evaluated; performing bias field correction and brain tissue stripping on the image sequence to construct an initial brain parenchyma three-dimensional voxel model containing individual lateral ventricle expansion morphological characteristics; based on the initial brain parenchyma three-dimensional voxel model, extracting an initial isosurface of the interface between gray matter and white matter; calculating a local curvature tensor for a deep brain sulcus region in the initial isosurface; performing topological defect repair and mesh smoothing on the initial isosurface according to the local curvature tensor to obtain an individualized cortex surface mesh model eliminating ventricle expansion deformation artifacts.The application realizes accurate registration of image space and surgical physical space.

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.

The application discloses a ventricle puncture drainage puncture auxiliary device, which comprises a reference element and a puncture needle ring fastener, the reference element and the puncture needle ring fastener are both center-aperture sheet structures, the reference element is fixed on the head, and the puncture needle ring fastener is axially coincident with the center aperture of the reference element and has a diameter difference of less than 1 mm. The puncture needle ring fastener extends an extension part with a bending structure, the reference element is provided with a groove matched with the extension part, and the extension part and the groove are matched to form a fixed structure to connect and fix the reference element and the puncture needle ring fastener. The reference element can be fixed according to the puncture position, the puncture needle ring fastener is adjusted in angle to assist puncture after the aperture is opened, and the puncture needle ring fastener ensures the stability of puncture. The puncture needle ring fastener can also be matched with the skull aperture drill ring fastener to be applicable to guarantee the bacteria isolation effect in the puncture drainage process and avoid intracranial infection.

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 ventricle puncture needle comprises a needle tube and a needle core, the needle tube is arranged on the outer side of the needle core in a sleeved mode, the needle tube is of a hollow tubular structure, a blunt end is arranged at the puncture end of the needle tube, an opening is formed in the blunt end, a needle head is arranged at the puncture end of the needle core, the non-puncture end of the needle core is in threaded connection with the non-puncture end of the needle tube, and when the needle core rotates, the needle head moves in the needle tube. And the needle extends to the outer side of the needle tube through the opening. The puncture needle can penetrate through hard sclerotin, the puncture difficulty is reduced, and the puncture effect is improved; the needle head can be prevented from damaging tissues, blood vessels or nerves and the like, so that the safety is improved; and the blunt end can also be used for carrying out compression hemostasis on a target spot, so that the application range is expanded, and the application range is wide.

The invention discloses a deep learning-based operation monitoring method for an auxiliary device implanted into a ventricle. The method comprises the following steps of collecting multi-source time sequence monitoring data related to operation of the auxiliary device of the ventricle; constructing an operation state prediction model comprising a basic monitoring module and an accurate monitoring module; the basic monitoring module comprises a local feature extraction module, a feature summarization module and a first classification module which are cascaded; the fine monitoring module comprises a high-frequency time sequence data feature extraction module, a low-frequency asynchronous data condition coding module, a fusion module and a second classification module. And analyzing the real-time monitoring data by using the running state prediction model, and outputting the current running state information of the ventricular assist device. The method provided by the invention has the advantages of timely fault early warning, high identification precision, strong model generalization and the like, and can realize dynamic monitoring and intelligent diagnosis of the operation state of the ventricular assist device.