40 results about "Catheter manipulation" patented technology

The invention provides a thrombus aspiration catheter with the variable inner diameter of the far end, and belongs to the technical field of interventional surgical instruments.The catheter comprises an interventional catheter, an operating handle and a collecting component, and the interventional catheter is used for moving along a blood vessel to be close to the thrombus position; the operating handle is arranged at the near end of the interventional catheter and is used for providing suction force for the interventional catheter; the collecting part is arranged at the far end of the interventional catheter, the near end of the collecting part is communicated with the interventional catheter, and the far end is open and adjustable in diameter; when the interventional catheter moves along the blood vessel to be close to the thrombus, the diameter of the collecting part is in a contracted state and is not larger than that of the interventional catheter, and after the collecting part is in place, the collecting part expands to increase the diameter of the far end so as to integrally suck the thrombus; the thrombus aspiration catheter is mainly used for solving the technical problems that in the prior art, a small-caliber thrombus aspiration catheter is insufficient in aspiration force, repeated aspiration is needed, thrombus escape is easily caused, and a large-caliber catheter is poor in passing ability and difficult to reach a diseased region.

The invention relates to the technical field of medical endoscopes, and provides an endoscope with a temperature measurement function, the endoscope comprises an operation part and a soft lens catheter, and the operation part and the soft lens catheter are both internally provided with a liquid supply channel, a suction channel and a transmission medium channel; the flexible lens catheter is detachably arranged on the operating part through a connecting part, and the connecting part comprises a locking piece, a sealing insertion tube, an elastic contact piece and a sealing piece; the operation part and the flexible lens catheter are both provided with the abutting pipes communicated with the suction channel, and a sealing piece is arranged at the connecting position of the two abutting pipes. Through the arrangement of the connecting part, the flexible lens catheter can be quickly disassembled and replaced during use, the replacement time when the operation part breaks down in the operation process can be greatly shortened, and the flexible lens catheter can be disassembled and replaced without being taken out.

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 relates to the technical field of peritoneal dialysis, in particular to a peritoneal dialysis fluid pipeline capable of accurately controlling the amount of children and achieving pressurized perfusion for adults, which comprises a waste fluid bag, an injector, a fluid inlet bag and a connecting pipe, a first catheter is connected between the waste fluid bag and the connecting pipe, and a second catheter is connected between a nipple of the injector and the connecting pipe. And a third catheter is connected between the nipple of the injector and the liquid inlet bag. After an operator connects the connecting pipe to an external short pipe of a patient and waste liquid in the abdominal cavity of the patient is completely discharged, the operator clamps and closes the first catheter and the second catheter and opens the third catheter at the same time, the operator can suck quantitative dialysate into the injector, and finally the third catheter is closed and the second catheter is opened, so that the dialysate in the abdominal cavity of the patient is completely discharged. An operator can inject the dialysate in the injector into the abdominal cavity of a patient, quantitative injection of dialysis is achieved, and the problem that it is difficult for the operator to inject the dialysate with the accurate amount into the abdominal cavity of an underage child is solved on the whole.

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.

Methods and apparatus for providing embolic protection during transcatheter procedures are disclosed. In one arrangement, a device includes an elongate sheath insertable through a vasculature into a target site. A filter assembly extends from the distal end of the sheath. The sheath tube can be switched between a radial contraction state and a radial expansion state. The sheath in a radially expanded state defines a central lumen allowing insertion of a device for transcatheter operations. The filter assembly includes a porous membrane switchable between a radially contracted state and a radially expanded state. The radially expanded state refers to a cross-section across the blood vessel to prevent debris from passing through the porous membrane. A filter actuation system switches the porous membrane between a radially contracted state and a radially expanded state.

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.

The invention provides an aneurysm embolism auxiliary device, and belongs to the technical field of medical instruments. The device comprises a conveying catheter, an operating handle, a balloon and a filling unit, wherein the conveying catheter is used for conveying a treatment instrument to an aneurysm position; the operating handle is arranged at the near end of the conveying catheter; the balloon is arranged at the far end of the conveying catheter and is used for supporting a blood vessel after being filled; the filling unit is used for filling injection gel for treating the aneurysm into the aneurysm along the conveying catheter from the position of the operating handle, and the injection gel is used for being solidified in the aneurysm; during working, the conveying catheter conveys the balloon to the aneurysm position, the balloon supports a blood vessel for positioning after being filled, the filling unit fills injection gel into the aneurysm, and the injection gel is solidified and formed after entering the aneurysm so as to treat the aneurysm; the technical problems that in an existing aneurysm interventional therapy mode, a spring ring is prone to displacement, and bleeding risk is increased due to long-term medicine taking after stent implantation are mainly solved.

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.

The invention discloses a peripheral vascular intervention thrombectomy catheter with a far-end embolism protection structure, and relates to the technical field of vascular thrombectomy catheters. The peripheral vessel interventional thrombectomy catheter with the far-end embolism protection structure comprises a catheter body, an embolism protection assembly is arranged at one end of the catheter body, a thrombectomy assembly is arranged on the surface of the catheter body, a transmission assembly is arranged in the catheter body, and the embolism protection assembly comprises a protection pipe network fixedly installed on one side of the catheter body. Through the transmission assembly, one end of a lead screw can drive one side of a filter screen plate to move towards the interior of the protective pipe network through rotation of the lead screw in the use process, so that the protective pipe network is expanded, meanwhile, an air bag piece can be inflated, and after a guide pipe is placed in the use process, the air bag piece can be inserted into the protective pipe network. The preparation time of catheter operation is shortened, the catheter is convenient to operate, thrombectomy and protection operations of the catheter are improved, and the use convenience of the catheter is improved.

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.

The invention relates to the field of interventional catheters, and discloses an interventional catheter operating device which comprises a bottom frame, a top frame is arranged over the bottom frame, the top frame and the bottom frame are supported through a plurality of supporting columns, an overturning plate is arranged in the top frame through an angle adjusting structure, and a fixing frame is arranged in the middle of the upper face of the overturning plate. A movable seat is arranged in the fixed frame through a movable supporting structure, a twisting structure is arranged on the movable seat, and two groups of protection blocks on the protection structure can be smoothly wrapped on the side surface of the interventional catheter under the tensioning and limiting of the protection structure by a limiting structure and a rolling and tensioning structure, so that the interventional catheter is limited; therefore, when the interventional catheter is inserted, the interventional catheter can be better prevented from completely moving, and the medical working difficulty is reduced.

The application relates to the technical field of medical devices, and particularly discloses a hydrophilic coating angiography catheter and an intelligent lubricant release system thereof, wherein the hydrophilic coating angiography catheter comprises a data acquisition module, a basic running factor analysis module, a block area analysis module, a resistance factor analysis module, a resistance development analysis module and a lubricant release parameter determination module; the data acquisition module acquires a continuous angiography image sequence in front of the catheter and a real-time running distance; the basic running factor analysis module obtains a first running resistance factor of a basic running resistance factor based on image analysis of a blood vessel shape; the block area analysis module identifies a running block area, determines a latest relative position and a three-dimensional size of the running block area; the resistance factor analysis module combines related data to perform combined resistance effect analysis, obtains a running combined resistance factor and a second running resistance factor; the resistance development analysis module constructs a resistance factor analysis tree, fits a resistance change curve, and analyzes a plurality of resistance development factors; and the lubricant release parameter determination module outputs a lubricant release parameter control instruction based on the above factors; scientific and accurate control of lubricant release is realized, and the scientificity and effectiveness of catheter operation are improved.

The present invention relates to the field of medical devices and discloses a catheter for protecting a stoma intestinal tube during surgery. The catheter for protecting a stoma intestinal tube during surgery comprises a catheter body, a pouch, a valve and a butterfly-shaped fixator. The pouch is fixedly adhered to the catheter body and wrapped around the outer periphery of the catheter body. A butterfly-shaped fixator is fixedly provided on the outer wall of the proximal end of the catheter body. A valve is fixedly provided near the proximal end of the pouch near the butterfly fixator. The catheter is simple to operate, firmly fixed and can clearly display the course of the stoma intestinal tube, thereby reducing the risk of intestinal tube damage during surgery.

The present invention relates to an auxiliary device for operating a suction catheter, the device comprising: a handle unit (100) including a left handle (120) and a right handle (140) which move in opposite directions to widen or narrow a gap therebetween; and a rotating body (200) which is positioned between the left handle (120) and the right handle (140) to hold and support a suction tube (300), and rotates according to the operation of the left handle (120) and the right handle (140), wherein as the rotating body (200) rotates according to the operation of the handle unit (100), the suction tube (300) can rotate.

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 article is a catheter manipulator, for example, a device for performing stent placement for vascular treatment.

The invention relates to the technical field of medical instruments, and particularly discloses a hydrophilic coating angiographic catheter and an intelligent lubricant release system thereof, and the hydrophilic coating angiographic catheter comprises a data acquisition module which is used for acquiring a continuous angiographic image sequence and a real-time advancing distance in front of the catheter; the basic advancing factor analysis module analyzes the blood vessel form based on the image to obtain a first advancing resistance factor of the basic advancing resistance factor; the blocking area analysis module identifies the advancing blocking area and determines the latest relative position and the three-dimensional size of the advancing blocking area; a combined resistance factor analysis module performs combined resistance effect analysis in combination with related data to obtain a traveling combined resistance factor and a second traveling resistance factor; the resistance development analysis module is used for constructing a resistance factor analysis tree, fitting a resistance change curve and analyzing a plurality of resistance development factors; the lubricant release parameter determination module outputs a lubricant release parameter control instruction based on the factors; the lubricant release is scientifically and accurately controlled, and the scientificity and effectiveness of catheter operation are improved.

The utility model discloses a prostate balloon catheter, which relates to the technical field of medical instruments and comprises a balloon body, the balloon body is provided with a first outer contour and a second outer contour which have different functions in the longitudinal direction, the first outer contour is positioned on one side of the near end of the second outer contour, and the second outer contour is positioned on the other side of the near end of the second outer contour. The first area outer contour is used for expansion at the urethra of the prostate, the second area outer contour is used for anchoring in a cavity, the portion, between the first area outer contour and the second area outer contour, of the balloon body is a thin neck section, and a binding piece is arranged on the thin neck section and used for limiting or limiting radial expansion of the balloon body. The prostate balloon catheter provided by the utility model is convenient to operate, the filling operation steps of the balloon can be simplified, and the operation time is saved.

The present invention discloses a transcatheter heart valve clamping system, which includes a heart valve clamp part and a delivery system part. The heart valve clamp includes an upper clamping arm and a lower clamping arm, and the delivery system includes a delivery catheter and an operating handle. This system fixes the heart valve by the mutual clamping between the upper and lower clamping arms, and has the characteristics of simple structure, precise operation, and complete retrievability, and can treat heart valve diseases such as mitral regurgitation and tricuspid regurgitation.

[Problem] To provide a method for operating an FT catheter that enables even a moderately experienced operator to perform treatment accurately without relying on an expert operator. [Solution] An FT catheter (1) comprising an outer tube (10), an inner tube (20), a fallopian tube endoscope (30), and a balloon (40). A target site (101) is gradually expanded by repeating: a first step for bringing the distal end portion of the balloon (40) into contact with the target site (101) by pressurizing the balloon (40) and moving the same to the distal end side of the inner tube (20); a second step for moving the distal end portion to the rear end side of the fallopian tube endoscope (30); a third step for further pressurizing the balloon (40) to bring the outer periphery of the balloon (40) into contact with itself; a fourth step for moving the balloon (40) to the distal end side of the fallopian tube endoscope (30), further expanding the balloon (40), and expanding the target site; and a fifth step for depressurizing the balloon (40) to reduce the size of a protruding portion (41) of the balloon (40).

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.