252 results about "Suction catheter" patented technology

Described here are methods and apparatuses for tracking a clot material within a lumen of a suction catheter. For example, an apparatus as described herein may include a flexible elongate body having a suction lumen, a first pair of electrodes within the suction lumen, a second pair of electrodes proximal to the first pair of electrodes, and a controller configured to track a clot material within the suction lumen based on signals from the first pair of electrodes and the second pair of electrodes.

Example aspiration catheters and systems including aspiration catheters are disclosed. An example aspiration catheter includes a catheter body having a proximal end region, a distal end region and a lumen extending therein. The aspiration catheter also includes a fluid supply tube extending within the lumen of the catheter body, the fluid supply tube having a distal end region and a distal facing surface. The aspiration catheter also includes a funnel having a proximal end and a distal end, wherein the proximal end is coupled to the distal end region of the catheter body, and wherein the funnel is configured to shift between a collapsed configuration and an expanded configuration.

Described herein are methods and apparatuses for identifying a clot material in contact with a suction catheter. For example, an apparatus as described herein may include a flexible elongate body having a suction lumen, and an aspiration opening sensor comprising at least two electrodes, and a controller configured to distinguish between clot and blood based on an impedance signal between the two or more electrodes.

The invention belongs to the technical field of medical instruments, and particularly relates to an integrated plugging balloon suction catheter. The suction catheter comprises a woven mesh tube, the near end of the woven mesh tube is connected with a handle, and the far end opening of the woven mesh tube is used for being close to the thrombus position; the balloon is arranged on the periphery of the woven mesh tube in a sleeving mode, and the balloon is arranged at the far end of the woven mesh tube; the handle comprises a catheter suction port and a filling port, the catheter suction port is communicated with the far port of the woven mesh tube, and the filling port is communicated with the balloon. The aspiration catheter can effectively reduce the occurrence rate of thrombus escape, so that the risk of far-end embolism is reduced, and good prognosis of a patient is achieved through efficient thrombus extraction; and the extra cost of using other instruments can be reduced, so that the comprehensive cost of the operation is reduced, the thrombus extraction success rate is greatly improved, manpower and material resources are saved, and a patient is benefited.

The invention relates to a thrombus aspiration system and a control method of the thrombus aspiration system, relates to the technical field of medical equipment, and can improve the thrombus aspiration efficiency. An intelligent control module in the system is configured to execute the steps of determining the pressure difference between the near end and the far end according to pressure data collected by a first pressure sensor and pressure data collected by a second pressure sensor, determining the pressure difference change rate of the pressure difference, and determining the pressure difference change rate of the pressure difference according to flow data collected by a flow sensor. Determining the flow change rate of the blood flow in the suction catheter; according to the pressure difference change rate and the flow change rate, the medium type corresponding to the current suction medium of the suction guide pipe is determined; when the suction medium is blood, intermittent suction is performed on the blood according to a preset frequency when a valve in the air pressure state conversion module is in a closed state; and when the suction medium comprises thrombus of a target volume, determining a target frequency corresponding to the target volume, and opening and closing a valve in the air pressure state conversion module for multiple times according to the target frequency while keeping suction.

The invention provides a thrombus aspiration catheter with a flow monitoring function. The device comprises a suction tube body, a suction handle, an ultrasonic flow sensing assembly, a processing unit and a display module, the ultrasonic flow sensing assembly is arranged at the far end of the suction pipe body and used for monitoring a blood flow signal at a suction opening of the suction pipe body. The processing unit is electrically connected with the ultrasonic flow sensing assembly and is used for processing the blood flow signal and calculating to obtain suction indication information; the display module is connected with the processing unit and is used for displaying the suction indication information; the suction indication information comprises blood flow information. Therefore, the blood flow near the suction port of the suction catheter can be obtained through monitoring of the ultrasonic flowmeter, whether the suction port is aligned with the thrombus or not and whether the thrombus is sucked into the catheter or not can be judged in an auxiliary mode, the thrombus can be sucked more accurately without unnecessarily drawing out blood, blood loss of a patient is reduced, meanwhile, the suction efficiency is improved, and the blood taking time is shortened. The treatment effect is improved.

An adjusting device comprises a fixing assembly arranged at the right end of a sputum suction tube and used for being connected with the sputum suction tube, and an adjusting assembly used for controlling the adjusting assembly and a cleaning tube to communicate with the sputum suction tube is arranged in the fixing assembly. A limiting assembly used for limiting the adjusting assembly is arranged in the fixing assembly. Therefore, when medicine adding operation needs to be carried out, medical staff only need to inject medicine into the medicine adding connector, and then the inner core is rotated to enable the medicine adding connector to be communicated with the inner channel of the sputum suction tube. At the moment, the medicine is inhaled into the respiratory tract along with the sputum, so that accurate administration of the medicine is realized; through the double functions of precise dosing and negative pressure suction, the closed sputum suction tube dosing structure can improve the treatment effect; due to the adoption of the closed design, the sputum suction tube dosing structure can effectively avoid the risks of sputum leakage and cross infection.

The utility model discloses a pulmonary alveolar lavage device which comprises a suction catheter and an ultrasonic probe, wherein the suction catheter is used for entering a bronchus through an insertion tube of an endoscope for pulmonary alveolar lavage, and the ultrasonic probe is used for entering the bronchus through the suction catheter. The suction catheter comprises a non-transparent flexible section located at the far end and a transparent section communicated with the near end of the flexible section, and the hardness of the transparent section is larger than that of the flexible section. By using the alveolar lavage device, the shape of the bronchus into which the suction catheter enters and the runner condition of the suction catheter can be observed in real time, and the suction catheter can be prevented from being blocked.

A two-stage suction catheter for rapidly clearing liquids and solids from the upper airway has a first catheter stage configured to regulate effective moderate level negative pressure level at the distal end inlet and a high-capacity catheter stage having a large aperture size that is configured to regulate effective high level negative pressure level at the high-capacity catheter distal connection inlet when the first catheter stage is separated from the high-capacity catheter stage. The two-stage suction catheter has an attachment arrangement comprising a detent that releasably the first catheter stage to the high-capacity catheter stage, wherein the detent is configured to permit separation of the stages by a one-handed separation action. Methods and systems are also described. A suction cannister lid has a high capacity port and auxiliary port that may be separately sealed by a removable cap or insertion of high-capacity tubing, respectively.

Example aspiration catheters and systems including aspiration catheters are disclosed. An example aspiration catheter includes a catheter body having a proximal end region, a distal end region and a lumen extending therein. The aspiration catheter also includes a fluid supply tube extending within the lumen of the catheter body, the fluid supply tube having a distal end region and a distal facing surface. The aspiration catheter also includes a funnel having a proximal end and a distal end, wherein the proximal end is coupled to the distal end region of the catheter body, and wherein the funnel is configured to shift between a collapsed configuration and an expanded configuration.

The invention discloses an adjustable thrombus breaking device, and belongs to the technical field of interventional therapy instruments, the adjustable thrombus breaking device comprises a guide wire tube and a guide wire, the tube wall of the guide wire tube is provided with a guide wire port, and the guide wire port is located at the position close to the far end of the guide wire tube; the guide wire is arranged in the guide wire tube in a penetrating mode, the far end of the guide wire is connected with the far end of the guide wire tube, the guide wire can penetrate out of the guide wire opening in a bent shape, and the part, penetrating out of the guide wire opening, of the guide wire forms a broken plug structure. The guide wire can penetrate out of the guide wire opening formed in the guide wire tube, the thrombus breaking structure is formed by the guide wire penetrating out of the guide wire opening, the outer diameter of the thrombus breaking structure can be adjusted through the guide wire, and the thrombus breaking device has the advantages of being simple in structure, high in flexibility and high in thrombus breaking efficiency and can adapt to complex blood vessel structures and suction catheters with small catheter diameters.

The invention provides a suction catheter. The suction catheter comprises a macromolecule tube and a supporting tube arranged in the wall of the macromolecule tube. The supporting pipe comprises a first supporting ring and a plurality of supporting rods, and the supporting rods extend in the direction parallel to the longitudinal center axis of the suction catheter and are arranged on the outer side of the first supporting ring at intervals in the circumferential direction. The supporting rod comprises a near-end section, a middle section and a far-end section which are sequentially connected, the near-end section and the middle section are located on the near-end side of the first supporting ring, the far-end section is located on the far-end side of the first supporting ring, and the rigidity of the far-end section or the near-end section is larger than that of the middle section. When the far end of the aspiration catheter is blocked by thrombus, the middle section of the supporting rod is bent inwards, the far end section of the supporting rod tilts outwards, and therefore the far end of the supporting rod expands, and the thrombus originally blocked at the far end of the aspiration catheter can smoothly enter the aspiration catheter.

The invention discloses a peristaltic thrombus breaking and moving suction catheter and a using method thereof, and relates to the technical field of interventional medical instruments.The peristaltic thrombus breaking and moving suction catheter comprises a catheter body, the catheter body comprises a suction channel and an adjusting channel, and the adjusting channel is adjacent to the suction channel; the adjusting channel is provided with the peristaltic structure, the peristaltic structure comprises a plurality of adjusting sections arranged in the axial direction of the catheter body, the expansion degree between the two ends of each adjusting section is adjustable, during thrombus aspiration, the intermittent adjusting sections extrude the aspiration channel during expansion, and the parts, with the maximum expansion degree, of every two adjacent adjusting sections are not adjacent; the adjusting section enables part of the channel wall of the suction channel to be provided with a corrugated structure in the axial direction. And when the expansion degree of the adjusting section is adjusted every time, the positions, with the maximum expansion degree, of the adjusting section are different, so that the channel wall of the suction channel forms dynamic corrugated movement (namely similar to gastrointestinal peristalsis surface movement), and the thrombus carrying power is enhanced.

The utility model relates to the field of medical instruments, and discloses a tissue suction assembly and a surgical robot system.The tissue suction assembly comprises a suction tool which comprises a suction catheter and a suction cup arranged at the far end of the suction catheter; the clamping tool comprises an arm body and a clamp arranged at the far end of the arm body, the clamp is used for clamping the suction catheter, and the arm body is used for driving the suction catheter to move. Suction force can be evenly applied to the surface of a tissue or an organ through the suction cup, the tissue or the organ can be attracted more firmly, the suction force applied to the surface of the tissue or the organ is softer, the situation that the tissue or the organ is damaged due to the fact that a rigid instrument directly clamps the tissue or the organ is avoided, and the use process is safer.

The invention relates to the field of medical instruments, in particular to a suction catheter with a shock wave thrombus breaking function, which comprises a shock wave catheter, a suction tube and a discharge mechanism, and a shock wave guide pipe is arranged in the suction pipe. According to the invention, charges are introduced into the annular electrode and the cylindrical electrode by starting the discharge mechanism, a large amount of charges are accumulated at the two ends of the positive electrode and the negative electrode to generate a strong electric field, neutral particles in a medium between the electrodes are ionized into plasma under the action of the strong electric field, and a discharge phenomenon occurs; rapid temperature change of plasmas and surrounding media generated in the discharging process causes rapid volume expansion and contraction of the surrounding media, the violent movement of particles in the media can generate pressure sound waves and transmit the pressure sound waves outwards through the media, and when the movement speed of the particles exceeds the propagation speed of the sound waves in the media, shock waves can be generated, so that the pressure sound waves are generated. When the shock wave catheter extends into the blood vessel of the human body, calcified plaques in the blood vessel can be efficiently crushed without damaging the endometrium of the blood vessel.

An aspiration catheter includes a body having a proximal end and an opposite distal tip, with a lumen extending therethrough in a longitudinal direction from the proximal end to the distal tip. The aspiration catheter further includes a stabilizing structural member that stabilizes the body relative to the inner wall of the blood vessel to minimize movement and / or radial expansion of the distal tip of the body when subjected to aspiration that would otherwise potentially damage the inner wall of the blood vessel.

The utility model discloses a negative pressure suction device for taking a dislocated intraocular lens. The negative pressure suction device mainly comprises a suction catheter, a catheter seat, a butt joint seat, an extension tube, a negative pressure generation device and a negative pressure control device, wherein the combined structure of the suction catheter and the catheter seat can be realized by directly adopting a 22G venous indwelling needle catheter, the combined structure of the suction catheter and the catheter seat is connected to the extension tube through the butt joint seat, the combined structure of the negative pressure generation device and the negative pressure control device can be realized by directly adopting an ultrasonic emulsification and vitreous body cutting machine and a matched pedal controller, and the extension tube is in butt joint with a negative pressure port of the extension tube. The negative pressure is adjusted through the pedal controller, the intraocular lens dislocated to the vitreous cavity is attracted to the pupil area, and damage to the retina in an operation is avoided. The device has the advantages of simplicity and convenience in operation, controllable negative pressure, small trauma and the like, is suitable for minimally invasive extraction or reduction of a dislocated intraocular lens in clinic, and is wide in adaptability.

The utility model provides an intravascular thrombus aspiration catheter. The intravascular thrombus aspiration catheter comprises an internal flow channel, a far-end aspiration catheter section, a middle catheter section and a near-end driving catheter section, and the internal flow channel is sequentially communicated with the far-end aspiration catheter section, the middle catheter section and the near-end driving catheter section from the far end of the intravascular thrombus aspiration catheter to the near end of the intravascular thrombus aspiration catheter. Wherein the intravascular thrombus aspiration catheter further comprises an aspiration inlet and an outflow window, and the internal flow channel is communicated with the aspiration inlet and the outflow window; the inner flow channel is provided with an impeller; a suction inlet, an impeller and an outflow window are sequentially arranged from the far end to the near end of the intravascular thrombus suction catheter, and the intravascular thrombus suction catheter further comprises a filter screen. The filter screen is arranged between the impeller of the inner flow channel and the outflow window, or the filter screen is arranged outside the outflow window and wraps the outflow window. According to the intravascular thrombus aspiration catheter, the working load of the impeller can be effectively reduced, and then adverse events caused by excessive heat generated due to large load are reduced.

Disclosed is a valve balloon suction catheter, comprising a tip, a balloon, a catheter, and a handle base in sequence from a distal end to a proximal end, the catheter being provided with a fluid passage lumen. The balloon consists of at least four balloon bodies, which are distributed circumferentially around the catheter to form a circular configuration, so as to create a blood flow channel in the center of the balloon, the blood flow channel being arranged in the axial direction of the balloon. A micro axial flow pump is provided in the blood flow channel and is arranged on the catheter, and a guidewire conduit penetrating through the micro axial flow pump is provided in the micro axial flow pump. A distal end of the guidewire conduit passes through the blood flow channel and is fixedly connected to the tip, and a proximal end of the guidewire conduit penetrates through the handle base. A guidewire lumen is provided in the guidewire conduit. The micro axial flow pump is connected to an external impeller drive interface arranged at a proximal end of the handle base. Compared with the prior art, the combination of balloon dilatation and mechanical circulatory assistance establishes a drainage pathway from the left ventricle to the ascending aorta, enabling cardiac blood circulation and improving the safety of the procedure.

The invention provides a suction catheter. The suction catheter comprises a macromolecule tube and a supporting tube arranged in the wall of the macromolecule tube. The supporting pipe comprises a first supporting ring, a plurality of supporting rods and at least one tightening ring; the multiple supporting rods extend in the direction parallel to the longitudinal central axis of the suction catheter and are arranged on the outer side of the first supporting ring at intervals in the circumferential direction. The tightening ring is located on the near end side of the first supporting ring and arranged outside the multiple supporting rods in a sleeving mode. In a natural state, the tightening ring tends to contract inwards in the radial direction. When the far end of the suction catheter is blocked by thrombus, the part, sleeved with the tightening ring, of the supporting rod bends and deforms inwards under the action of the tightening ring and negative pressure. The supporting rod rotates with the first supporting ring as a fulcrum, so that the far-end section of the supporting rod tilts outwards, the far-end end of the supporting pipe expands, and thrombus abutting against the far-end end of the suction catheter can smoothly enter the suction catheter.

A system for catheter-based aspiration includes an aspiration catheter having a distal portion configured for insertion within a blood vessel of a subject, the aspiration catheter including an aspiration lumen having a distal opening at the distal portion of the aspiration catheter, an injection lumen having a distal end at the distal portion of the aspiration catheter, and an orifice located at or near the distal end of the injection lumen, the orifice configured to direct liquid into the aspiration lumen at or near the distal opening of the aspiration lumen; an injector configured to pressurize the liquid within the injection lumen, such that liquid exits the orifice and enters the aspiration lumen; and a mechanical oscillator coupled to the injector and configured to cause a pulsatile pressure of the liquid as it is injected through the injection lumen.

The invention provides a vascular occlusion suction system and laser ablation equipment, and belongs to the technical field of medical instruments.The suction system comprises a suction catheter, a collecting device, a negative pressure generating device, a flow sensing device and a control device.The first end of the suction catheter acts on the application position of a target object; an inlet of the collecting device is communicated with the second end of the suction catheter to form a first channel of the suction channel, the negative pressure generating device is communicated with an outlet of the collecting device to form a second channel of the suction channel, the flow sensing device is used for monitoring the real-time flow of the suction channel, and the control device is configured to respond to gear selection operation. The initial suction gear is determined, the negative pressure generation device is controlled to work at the initial suction gear, and the gear adjustment prompt instruction is output according to the real-time flow, so that an operator can conveniently carry out gear adjustment on the negative pressure generation device subsequently or directly carry out automatic gear adjustment on the negative pressure generation device; and the capacity of intelligently adjusting the suction negative pressure of the suction system is effectively improved.

The application discloses a kind of thrombus suction control method and thrombus suction device, and thrombus suction device includes suction assembly, suction assembly includes the shell with pressure cavity, piston rod and suction catheter, thrombus suction device also includes the motor of piston rod movement and the controller connected with motor, control method is: suction catheter is positioned to the blood vessel without thrombus, make motor operate according to speed V0, calibrate the pressure value B in pressure cavity under normal blood condition;Suction catheter is positioned to the blood vessel with thrombus, make motor operate according to speed V1, V1≤V0, make dynamic pressure value A0 in pressure cavity: when A0≤B, make motor keep speed V1 operation;When A0>B, make motor increase from speed V1: when B<A0≤C, make motor increase to speed V2 operation;When C<A0≤D, make motor increase to speed V3 operation;When D<A0≤E, make motor increase to speed V4 operation.The control method thrombus removal efficiency is high, and blood loss can be reduced.

The mask compatible with the snorting catheter comprises a mask body, a nose clip is arranged on the top of the inner side face of the mask body, the left side and the right side of the upper portion of the inner side face of the mask body are respectively provided with an inner side hasp, the upper side edges of the two inner side hasps are connected with the mask body, and mucilage glue is arranged on the two inner side hasps respectively. The left side and the right side of the lower portion of the outer side face of the mask body are each provided with a hook-and-loop fastener, each hook-and-loop fastener comprises a hook-and-loop fastener loop face and a hook-and-loop fastener hook face, one end of each hook-and-loop fastener loop face is connected with the mask body, and the other end of each hook-and-loop fastener loop face is connected with the corresponding hook-and-loop fastener hook face. The mask body is fixed to the snorting catheter through the two inner side hasps and the two hook-and-loop fasteners, the mask can be easily worn while the snorting catheter is worn, the snorting catheter and the mask can be more conveniently worn at the same time, ear tensioning belts of a traditional mask are omitted, the face of a patient is simplified, and the wearing comfort of the patient is improved.

The invention relates to the technical field of medical instruments, in particular to a catheter device for taking out blood vessel thrombus, which comprises a connector and a suction catheter body, one end of the suction catheter body is connected with a suction port of the connector, and a liquid suction pipe orifice communicated with an inner cavity is fixedly mounted on the side surface of the connector. A guide wire is inserted into the inner side of the suction catheter body in a penetrating mode and penetrates through an inner cavity of the connector. The thrombus aspiration catheter has the advantages that the aspiration catheter body is slowly inserted into a blood vessel, the aspiration opening of the aspiration catheter body is moved to the thrombus, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, the thrombus can be aspirated, and the thrombus can be aspirated. The guide wire is driven by the adjusting mechanism to extend forwards along the inner cavity of the suction catheter body, the guide wire firstly drives the telescopic mechanism to slide forwards, and the guide wire continues to move close to the suction opening of the suction catheter body.

An intubation assembly operable as both a tracheal tube and a suction catheter. The intubation assembly may include an adapter operable to couple to a suction hose, and the adapter may be removably coupled to the tracheal tube.

An endotracheal lung suction system includes an endotracheal tube defining a tube lumen, a suction assembly, and an inner suction catheter. The endotracheal tube comprises an inflation connector and an implantation balloon adjacent the distal tube end and fluidically connected to the inflation connection and through which the balloon inflates. The suction assembly comprises a proximal valve and a distal endotracheal tube connector fluidically connected to an interior of the tube lumen. The inner suction catheter passes through and slides within the suction assembly, the endotracheal tube connector, and through the tube lumen to extend slidably out from and back into the distal tube end. The inner suction catheter comprises a distal, inflatable, hollow, inner-suction- catheter securing device and a catheter body defining a main lumen extending through the inner suction catheter and a catheter-securing inflation lumen extending through the inner suction catheter parallel to the main lumen.

The utility model relates to a thrombus aspiration device, which belongs to the technical field of medical instruments, and comprises a piston rod, an injector empty cylinder and a clamping limit piece, the piston rod comprises a fan blade and a piston arranged at the end part of the fan blade, the piston is arranged in the injector empty cylinder, a plurality of grooves are arranged on the fan blade, and the clamping limit piece is arranged on the fan blade. A groove is formed in the injector hollow cylinder, the clamping limiting piece is located outside the injector hollow cylinder and clamped in the groove, an injection head communicated with the injector hollow cylinder is arranged at the end of the injector hollow cylinder, the injection head is connected with a suction catheter through a Luer connector, and a pressure monitoring assembly is arranged on the injection head. The real-time pressure in the injector in the thrombus suction process can be read by arranging the pressure gauge, and whether the suction catheter makes contact with the thrombus or not can be judged in an auxiliary mode. The thrombus suction device can visually monitor the negative pressure in the injector, and thrombus at the head end of the catheter is prevented from falling off due to insufficient negative pressure when the suction catheter is withdrawn.

The utility model provides an intracranial balloon suction catheter, and belongs to the technical field of medical instrument intervention equipment. The catheter comprises a catheter body used for sucking a bolt block, a tubular elastic supporting element is arranged at the far end of the catheter body, the elastic supporting element can be supported in the radial direction and can contract in the axial direction, the outer side of the elastic supporting element is wrapped with a balloon, the near end of the balloon is arranged at the far end of the catheter body, and the far end of the balloon is fixedly connected with the far end of the elastic supporting element. The suction nozzle is used for forming a suction port so as to directly extract the plug block; the suction catheter is used for solving the technical problems that an existing suction catheter is large in radial size of the far end and poor in compliance, so that the in-place performance is poor, and the treatment effect is poor.

This application relates to the field of medical device technology and discloses an automatic cleaning and waste liquid recovery device for a closed suction catheter. The device includes a housing, a connecting assembly, and a recovery assembly. The interior of the housing is divided into a storage chamber and a waste liquid recovery chamber by a fixedly connected partition. A sealing door is hinged to the outside of the waste liquid recovery chamber. The connecting assembly is mounted on the housing and is used to connect to the end of the closed suction catheter. The recovery assembly is located inside the waste liquid recovery chamber. Through the cooperation of a fixed heater, a triangular prism heater, and a driving component, the waste liquid recovery bag is automatically melted and sealed, achieving a good sealing effect. The recovery bag remains within a sealed space throughout the process, with no exposure during waste liquid collection, sealing, and disassembly, completely avoiding environmental and personnel pollution caused by waste liquid leakage and splashing. Simultaneously, when idle, the triangular prism heater can be attached to a heat-conducting plate to transfer heat to the flushing fluid in the storage chamber, preheating the flushing fluid and improving patient comfort.