21 results about "Catheter manipulation" patented technology

The application discloses a peripheral blood vessel intervention thrombus-removing catheter with a distal embolism protection structure and relates to the technical field of blood vessel thrombus-removing catheters.The peripheral blood vessel intervention thrombus-removing catheter with the distal embolism protection structure comprises a catheter body, one end of the catheter body is provided with a thrombus-removing assembly, the surface of the catheter body is provided with a thrombus-removing assembly, the inside of the catheter body is provided with a transmission assembly, the thrombus-removing assembly comprises a protection pipe network fixedly installed on one side of the catheter body.The transmission assembly is arranged, in the process of use, the rotation of a lead screw can drive one end of the lead screw to move the one side of the filter screen plate to the inside of the protection pipe network, so that the protection pipe network is expanded, and the air bag piece can be inflated, the catheter is placed into in the process of use, the preparation time of catheter operation is reduced, the catheter is convenient to operate, the thrombus-removing and protection operation of the catheter are improved, and the use convenience of the catheter is improved.

A catheter assembly includes: a hollow catheter; a catheter hub to which the catheter is fixed; an inner needle including a needle tip, the inner needle being detachably disposed inside of the catheter; a needle hub to which the inner needle is fixed; a catheter operation member configured to move the catheter relative to the inner needle; and a support member attached to a distal side of the needle hub and configured to rotate about a rotation axis orthogonal to a longitudinal direction of the assembly.

The utility model discloses a kind of cerebral angiography and treatment of radial artery approach combined catheter, belong to medical instrument technical field, the catheter includes outer sleeve and inner core pipe;The outer sleeve includes outer tube body, the inner core pipe is movably threaded in the lumen of outer sleeve, the inner core pipe includes connected proximal end tube body and distal end tube body, the distal end tube body is pre-shaped structure, the pre-shaped structure of the distal end tube body is formed by multiple arc transition sections connected head to tail, the multiple arc transition sections constitute hook shape and the head end of distal end tube body extends to the outside of hook, the length of the pre-shaped structure of the distal end tube body is 12.5-18.5cm.The utility model sets outer sleeve and inner core pipe as independent catheter, without nesting and unscrewing when operating, reduce blood vessel injury risk;Inner core pipe has stronger superselective ability, can be directly used for the superselective angiography of target blood vessel.

The invention discloses a visual nasal gastrointestinal nutrition tube, and relates to the technical field of medical instruments. The visual nasal gastrointestinal nutrition tube comprises a catheter, an operation part, a guide assembly, a guide wire assembly and a visual camera. During working, the guide assembly is arranged in the front end of the catheter, and the operation part is connected with the rear end of the catheter. The operation part is connected with the guide assembly through the guide wire assembly, the direction of the front end of the catheter can be flexibly operated through the operation part, and therefore the catheter indwelling accuracy and efficiency are improved.

1. The name of the design product: adjustable bending catheter handle. 2. The use of the design product: for the operation and adjustment of the guide wire in the adjustable bending catheter in medical equipment. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view.

A system and method for enhancing visual accuracy comprising a computer processor and memory that executes software to capture the 3D map of the heart images, heart valves, and electro-anatomic data of the heart chambers, and project it into a 3D monitor instead of a 2D monitor, where in the displayed 3D map of the heart images, heart valves, heart chambers anatomy and catheters, is still rendered as a 2D map, which then can be visualized as a real 3D images and map by using / wearing special glasses (3D glasses) designed to view the 3D map of the heart chambers and catheters as 3D in real time.

This invention provides a thrombus aspiration catheter with a variable distal inner diameter, belonging to the field of interventional surgical instrument technology. The catheter includes an interventional catheter, an operating handle, and a collection component. The interventional catheter is used to move along the blood vessel to approach the thrombus location. The operating handle is located at the proximal end of the interventional catheter to provide suction force. The collection component is located at the distal end of the interventional catheter, with its proximal end communicating with the interventional catheter and its distal end open and adjustable in diameter. When the interventional catheter moves along the blood vessel to approach the thrombus, the diameter of the collection component is in a contracted state and not larger than the diameter of the interventional catheter. After the collection component reaches its position, it expands to increase its distal diameter for overall thrombus aspiration. This invention primarily addresses the technical problems of existing small-diameter thrombus aspiration catheters, which suffer from insufficient suction force, require repeated aspiration, and are prone to thrombus escape, while large-diameter catheters have poor permeability and are difficult to reach the lesion site.

The invention provides a freezing and pulsed electric field integrated bimodal tissue ablation system and device and a control method thereof.The freezing and pulsed electric field integrated bimodal tissue ablation system comprises a main control unit, a dual-channel energy output module, a catheter operation unit, an impedance-temperature combined feedback module and a rewarming module, and the dual-channel energy output module outputs freezing energy and pulse energy to the catheter operation unit at the same time; real-time monitoring of the tissue state is achieved through an impedance measurement and thermocouple array arranged in the catheter operation unit, and the rewarming module rewarms the frozen tissue through the catheter operation unit so as to avoid tissue freezing damage. The device has the advantages that the two functions of freezing and pulse ablation are combined, the ablation efficiency and safety are both considered, the structure of the operation catheter is optimized, a real-time curative effect feedback mechanism in the operation is achieved, the applicability is wide, and the quality and efficiency of the ablation operation are greatly improved.

This invention provides an aneurysm embolization auxiliary device, belonging to the field of medical device technology. The device includes a delivery catheter, an operating handle, a balloon, and a filling unit. The delivery catheter delivers a treatment device to the aneurysm location. The operating handle is located at the proximal end of the delivery catheter. The balloon, after inflation, supports the blood vessel. The filling unit fills the aneurysm with an injectable gel for treating the aneurysm from the operating handle location along the delivery catheter. The injectable gel solidifies within the aneurysm. During operation, the delivery catheter delivers the balloon to the aneurysm location. After inflation, the balloon supports and positions the blood vessel. The filling unit fills the aneurysm with the injectable gel, which solidifies upon entering the aneurysm to treat it. This invention primarily addresses technical problems in existing interventional aneurysm treatment methods, such as easy displacement of coils and the increased risk of bleeding due to the need for long-term medication after stent implantation.

A tool to create virtual lesions inside a 3D lung tumor image. The image can be an MRI or CT image of a patient's lung to be treated. This virtual pre procedural ablation allows the operator to identify optimal ablation sites and select the optimal ablation parameters for the given anatomy. Also, the actual procedure will be performed with the lung parenchyma surrounding the tumor preventing ultrasound to penetrate beyond the tumor walls. A diagnostic mode will guide the operator to optimize ablation parameters. This virtual pre ablation, the parenchymal ultrasound barrier and the diagnostic catheter operation should enable the operator to conduct the therapeutic procedure safe, fast and effective.

An example method includes receiving ultrasound (US) data from an echocardiogram probe for a region of interest for of the intracardiac transcatheter procedure. The method also includes constructing a three-dimensional (3D) model of the region of interest based on the US data. The 3D model tracks a set of markers, and a marker of the set of markers has a position on the 3D model. The method additionally includes displaying an output image. The output image comprises an output US image of a portion of the region of interest, overlaid with a portion of the 3D model corresponding to the portion of the region of interest. The portion of the 3D model comprises the marker. In some examples, the marker tracks a stationary position such as a rapid pacing position associated with a feature, including while the feature is in motion.

Herein disclosed is a robot apparatus having two or more robot units, each robot unit is configured to maneuver on an intracavity surgical device, such as a catheter, a guide wire, or tools for laser ablation. Also included is a reciprocating conveyor having a motion converter, such as a scotch yoke, coupled with a rail slider to produce linear reciprocating movements to bring the robot units back and forth from and towards a patient. A load measuring device is also included to sense both the axial force and the torque exerted on the surgical device and based on the real time load measurement, to control the scotch yoke and the robot unit more accurately for inserting the intracavity surgical device into or withdrawing it from the surgical subject.

This invention provides a computer program that offers useful information to the operator contained within medical images. [Solution] The computer program acquires a medical image generated based on signals detected by a catheter inserted into a tubular organ, derives object information regarding the types of objects contained in the acquired medical image, and executes a process to provide support information to the catheter operator based on the derived object information.

Herein disclosed is a robot apparatus having two or more robot units (200), each robot unit (200) is configured to maneuver on an intracavity surgical device (32), such as a catheter, a guide wire, or tools for laser ablation. Also included is a reciprocating conveyor (20) having a motion converter, such as a scotch yoke (60), coupled with a rail slider (40) to produce linear reciprocating movements to bring the robot units (200) back and forth from and towards a patient. A load measuring device is also included to sense both the axial force and the torque exerted on the surgical device (32) and based on the real time load measurement, to control the scotch yoke (60) and the robot unit (200) more accurately for inserting the intracavity surgical device (32) into or withdrawing it from the surgical subject.

The invention relates to the technical field of medical instruments, and provides a prostate ablation system and an ablation control method thereof, the system comprises a control host device and an ablation device, the control host device comprises a main controller, an ablation control module and a liquid perfusion module, and the ablation control module comprises a pulse ablation unit and a radio frequency ablation unit; the ablation device comprises: a catheter; the operation mechanism and the multiple ablation needles can be connected with the liquid perfusion module and the ablation control module, and the main controller is connected with the liquid perfusion module and the ablation control module and controls the liquid perfusion module and the ablation control module to control the multiple ablation needles to conduct at least one operation of liquid conveying, chemical ablation, pulse ablation and radio frequency ablation; the plurality of ablation needles comprise a first ablation needle and at least one second ablation needle; the first ablation needle is detachably connected with the operation mechanism through the detachable assembly, the function integration degree of the prostate ablation system is very high, and the system is very easy and convenient to use and operate.

The utility model discloses a simulation catheter teaching simulation appliance, which comprises a rubber arm, a rubber hand and a fixing ring, cavities are arranged in the rubber arm and the rubber hand, the fixing ring is fixedly connected onto the rubber arm for fixing and assisting, a circulation mechanism is arranged on the fixing ring, and the circulation mechanism is connected with the rubber arm. The circulating mechanism comprises a water injection bottle, a double-end catheter, a drainage tube and an adjusting knob; the water injection bottle is communicated with the rubber arm and the rubber hand through the double-end catheter; by means of the mechanism, a user can adjust the flow according to teaching requirements and simulate the blood flow speed in different physiological states, students can visually feel the impact force of the blood flow on the catheter and the stability of the catheter in the blood flow, more real and dynamic operation experience is provided for the students, the mastering degree of the students on catheter operation skills is effectively improved, and the teaching efficiency is improved. Understanding of the vascular structure and catheter operation is enhanced, and the ability to deal with real operation scenes is improved.

A catheter assembly includes: a hollow catheter; a catheter hub to which the catheter is fixed; an inner needle including a needle tip, the inner needle being detachably disposed inside of the catheter; a needle hub to which the inner needle is fixed; a catheter operation member configured to move the catheter relative to the inner needle; and a support member connected to the needle hub. The support member includes a support main body portion that is movable relative to the needle hub between (i) a first position at which, the support main body portion contacts and supports the catheter, and (ii) a second position that is a different position from the first position, at which the support main body portion does not contact the catheter.

The application relates to a catheter adjusting mechanism and a catheter driving device. The catheter adjusting mechanism comprises a first wheel, a second wheel and a knob. The first wheel is arranged on one side of the catheter along a first direction, and the first direction is a direction perpendicular to the axial direction of the catheter. The second wheel is arranged on the other side of the catheter along the first direction. The knob is connected to the second wheel. The second wheel has a first state of abutting the outer circumferential surface of the first wheel to clamp the catheter and a second state of being separated from the first wheel. The knob is configured to rotate and move the second wheel along the first direction to switch the second wheel between the first state and the second state. The catheter adjusting mechanism provided by the application only needs to rotate the knob to drive the first wheel or the second wheel to move along the first direction, adjusts the gap between the first wheel and the second wheel, adjusts the clamping force on the catheter, and only needs to install the catheter between the first wheel and the second wheel. The knob can clamp the catheter by rotating, and the operation steps are simple and convenient to use.

This invention provides a coil embolization auxiliary device, belonging to the field of interventional medical device technology. The device includes a blocking unit and a delivery unit. The blocking unit has an inner stent and an outer stent arranged coaxially, with identical structures and capable of relative displacement. The delivery unit delivers the mesh-aligned inner and outer stents to the target position and drives relative displacement between them, causing the meshes of the inner and outer stents to overlap, at least reducing the overall mesh size at the blocking position of the blocking unit. This invention primarily addresses the technical contradiction of existing coil embolization auxiliary stents, where the mesh size needs to be adapted to the insertion of the microcatheter, making it difficult to simultaneously prevent coil dislodgement, while reducing the mesh size hinders microcatheter operation. It achieves the dual requirements of smooth microcatheter insertion and reliable coil blocking, improving the safety, efficiency, and therapeutic efficacy of wide-necked artery aneurysm embolization surgery.

The present invention provides a catheter-simulator capable of improving the manipulation of a catheter for the tissue of the palm tube heart structure. A catheter simulator is provided with: a container (10) filled with a liquid; a heart model (100) provided in the container (10) in a state in which the container (10) is filled with a liquid, the heart model (100) being provided with an outer wall and a space; and a pulsatile pump (50) that is connected to the heart model (100) and generates a pulsatile flow in the internal space of the heart model. The heart model (100) is characterized in that a portion that varies by a pulsation flow is made thinner than other portions, and a space including the portion that has been made thinner is formed in a substantially closed shape.

This application provides a multi-terminal processing method and system for real-time sharing of emergency clinical data. Specifically, it utilizes a multimodal sensor on a modified cardiovascular catheter to detect intravascular conditions. This method employs a sensor integrated into the probe end of a catheter with a gradient refractive index nanocoating to acquire the transmittance distribution of the vascular wall and blood flow disturbance parameters. Based on the characteristics of this data, a computed tomography (CT) coding strategy related to vascular pathology is formulated. This strategy is translated into a rendering instruction set tailored to the characteristics of the terminal hardware and compressed into a data stream carrying vascular information using a video encoding protocol. Finally, the processed data is distributed to different devices, enabling visualization of vascular wall elasticity and allowing for optimization of the detection mode based on user feedback, generating control commands to further guide catheter operation. The technical solution provided in this application improves the accuracy and efficiency of multi-terminal data processing.