78 results about "Suction catheter" patented technology

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.

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.

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.

A suction catheter system is described with a suction nozzle that can extend from a guide catheter of the like. The suction nozzle can be positioned by tracking the suction nozzle through a vessel while moving a proximal portion of the suction extension within the lumen of the guide catheter. A suction lumen extends from the proximal end of the guide catheter through at least part of the guide catheter central lumen and through the suction tip. Desirable suction flow can be established using the guide lumen to facilitate the suction. Also, a delivery catheter is described with an elastic tip that can track closely over a guidewire. The elastic tip of the delivery catheter can be expanded to provide for the delivery of medical devices past the tip.

The utility model discloses a suction catheter, an intervention device and a thrombectomy training system.The suction catheter comprises a suction pipe and a filtering part, the suction pipe comprises a pipe body, a suction channel, a suction inlet and a suction outlet are formed in the pipe body, and the suction inlet and the suction outlet communicate with the suction channel; the filtering piece is arranged in the suction channel and is positioned between the suction inlet and the suction outlet; in the intervention state, the suction inlet is located at the preset suction position, the suction outlet is located at the preset liquid discharging position, and the pipe body penetrates through the middle transition area from the preset suction position and extends to the preset liquid discharging position.

The application provides a suction catheter, which comprises a catheter, a handle connected to a proximal end of the catheter, and a head end connected to a distal end of the catheter, wherein the head end comprises a protective cover and a rotary grinding head arranged inside the protective cover. A cable is arranged in the catheter, extends to a distal end of the head end, and is fixedly connected with the rotary grinding head, and the protective cover is provided with a hollow structure. The cable is configured to drive the rotary grinding head to rotate and break a thrombus entering the protective cover. In the technical scheme, the catheter can be inserted into a blood vessel of a human body, and the handle is used for holding by an operator. The hollow structure of the protective cover allows the thrombus to pass through, and then the rotary grinding head driven to rotate by the cable breaks the thrombus. The size of the thrombus broken by the rotary grinding head is small, so that the broken thrombus is not easy to be blocked when being sucked out, and the rotary grinding head is arranged in the protective cover, so that the blood vessel is not easy to be damaged.

The invention discloses a system for removing clogs in blood vessels, which relates to the technical field of medical instruments and comprises a flexible driving shaft, a rotating body, a suction catheter and a motor module, the rotating body is provided with a far end face, a near end face, an axis, a first side face and a second side face. The far end of the flexible driving shaft is coaxially and fixedly connected to the near end face of the rotating body, and the near end of the flexible driving shaft is connected to the motor module; the suction catheter is axially arranged on the outer side of the rotating body in a sleeving mode, and a fluid inlet is formed in the far end of the suction catheter; the distance between the first side face of the rotating body and the axis is larger than the distance between the second side face of the rotating body and the axis, an included angle is formed between the second side face of the rotating body and the generatrix of the rotating body, and the rotating body rotates in the suction guide pipe to excite vortex. A negative pressure cavity with the pressure lower than that of the working condition environment is formed in the far-end area of the rotating body. The device can crush and remove clogging substances in blood vessels, and the clogging substance removing effect is good.

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 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; a filter screen is arranged in an inner flow channel of the middle guide pipe section and is positioned between the suction inlet and the outflow window; at least one of the far-end suction catheter section, the middle catheter section and the near-end driving catheter section is detachably connected, and the suction inlet is formed in the far-end suction catheter section. According to the intravascular thrombus aspiration catheter provided by the invention, due to the segmented detachable design, the use convenience is facilitated.

The application discloses a closed sputum suction tube and relates to the technical field of medical equipment. The closed sputum suction tube comprises an outer hose, a sputum suction catheter is penetrated through the inner wall of the outer hose, a shunt pipe is fixedly installed at the end of the outer hose, the inner part of the outer hose is respectively provided with a first channel, a second channel and a third channel, a double-layer air bag in communication with the first channel is installed on one side of the shunt pipe, an injection pipe in communication with the third channel is installed on the other side of the shunt pipe, the injection pipe can work alternately with the double-layer air bag, waste liquid is recovered through the double-layer air bag connected with the first channel, flushing liquid is quantitatively delivered through the third channel, thick sputum liquid is diluted, the sputum suction catheter is guided to move through the second channel, the three channels are integrally designed, synchronous and efficient operation of sputum suction, flushing and ventilation is realized, the double-layer air bag and the injection pipe are matched, sputum suction and flushing work are alternately performed, the sputum suction catheter is regularly extruded through cooperation of a valve plate, blockage is prevented and discharge is promoted, and the sputum suction efficiency is remarkably improved.

The invention provides a thrombus aspiration catheter, and belongs to the technical field of interventional instruments. Comprising a catheter body, a suction opening is formed in the far end of the catheter body, a guide unit is arranged at the far end of the catheter body, and the guide unit is configured to be capable of being controllably switched between a guide state and a suction state so as to dynamically meet the requirements of different operation stages; wherein in the process that the catheter body advances along a blood vessel, the guide unit keeps a guide state that the radial size is gradually reduced in the extension direction from the near end to the far end; after the catheter body reaches a target position, the far end of the guide unit is bent towards the near end of the catheter body and used for exposing the suction opening to enter a suction state; the thrombus aspiration catheter is mainly used for solving the technical problems that when an existing thrombus aspiration catheter is delivered through a middle auxiliary catheter, operation is tedious, and operation efficiency is affected.

The utility model relates to the technical field of medical instruments, in particular to a vascular embolism stripping and suction catheter system. The vascular embolism stripping and suction catheter system comprises a catheter, a compressible and self-expanding thrombus cutting stripper and a traction silk thread, a traction cavity and a negative pressure cavity are formed in the catheter in the length direction of the catheter, the traction silk thread penetrates through the traction cavity, one end of the traction silk thread is connected with the thrombus cutting stripper, and the other end of the traction silk thread is connected with the negative pressure cavity. One end of the negative pressure cavity is communicated with the catheter, the other end of the negative pressure cavity penetrates out of the other end of the catheter, the thrombus cutting detacher can be compressed to be arranged in the traction cavity or can be released outside the catheter in a self-expanding mode, and the other end of the catheter is provided with a negative pressure connector communicated with the negative pressure cavity. The device has the advantages that the structural design is simple and reasonable, the wall-attached embolism can be effectively cut and crushed and then sucked out through negative pressure, and the embolism can be taken out more easily.

The present invention is directed to an improved suction catheter that increases the effectiveness of clearing the airway by way of non-limiting example, reducing the need for separate suctioning and foreign body grasping instruments. The embodiments described herein provide medical personnel the ability to use one hand and catheter to selectively grasp an anatomically lodged foreign body while reducing the likelihood of lumen blockage and interruption of suction.

The present invention relates to a thrombectomy stent, comprising: a stent body having a tubular mesh structure formed by interweaving a plurality of connecting wires and having meshes; a notch is formed in the middle of the bracket main body; the cutting wing frame is of a sheet-shaped structure formed by interweaving a plurality of cutting wires and is provided with meshes; the end, close to the near end, of the cutting wing frame is connected with the support body, and the cutting wing frame is used for covering the notch. During thrombus extraction, the thrombus extraction support is located at the end, close to the far end, of a thrombus, and the end, close to the far end, of the cutting wing frame deforms in the direction away from the axis of the support body so that the notch can be opened. The thrombus extraction guide wire is adopted to drive the thrombus extraction support to cut thrombus, and the thrombus extraction support is matched with the suction catheter to suck the cut thrombus. In this way, the thrombus removing efficiency can be guaranteed, meanwhile, the risk of thrombus taking operation again is reduced to the maximum extent, and thrombus can be removed more safely and effectively. The invention further relates to a thrombectomy system.

1. Name of the product in this design: Suction tube (electric flushing type). 2. Purpose of this design: This design is used for cleaning the oral cavity and rinsing sputum in comatose and dependent patients. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention discloses a device and method for removing a contrast agent in heart local blood, and relates to the field of medical treatment, the removing device comprises a suction catheter, a power pump, a filter assembly and a backflow catheter which are connected in sequence; the coronary artery of the heart body is communicated with the angiographic catheter, the coronary sinus of the heart body is communicated with the suction catheter, the femoral vein or other deep veins of a human body are communicated with the backflow catheter, and the area between the coronary artery and the coronary sinus is a contrast agent delivery area; wherein the filtering assembly is used for removing a contrast agent in blood. When the contrast agent in the blood is removed, the blood containing the contrast agent is pumped out of the heart body through the suction catheter by the power pump, then the contrast agent contained in the blood is removed through the filtering assembly, and then the blood without the contrast agent is conveyed into the human body again through the femoral vein or other deep veins by the backflow catheter. By means of the circulating conveying mode, on one hand, contrast agents in blood can be removed, and on the other hand, excessive blood loss of a patient can be avoided.

The invention discloses a pulmonary artery thrombus aspiration catheter and a manufacturing method thereof, and belongs to the technical field of medical instruments. The pulmonary artery thrombus aspiration catheter comprises a catheter body, a catheter head end and a skirt structure, the catheter head end is in a dome shape and arranged at the far end of the catheter body, the catheter head end has flexibility, and a pre-incision is formed in the top of the far end; the skirt edge structure comprises a self-expansion framework and a covering film arranged on the peripheral side of the self-expansion framework, the self-expansion framework has elasticity, and the self-expansion framework can be restrained and folded in the radial direction and can be automatically unfolded in the radial direction to be in a horn mouth shape after being restrained; the near end of the self-expanding skeleton is connected to the catheter body, the far end of the skirt structure is located in the catheter head end when folded, and the pre-incision is closed; when the far end of the skirt structure is unfolded, the catheter head end can be opened, the pre-incision is opened, at least two valve leaflets are formed, the far end edge of the pre-incision does not exceed the far end edge of the skirt structure, a gap is formed between the adjacent valve leaflets and the skirt structure, and damage to the tricuspid valve and other parts can be reduced.

The utility model relates to a thrombus removing device for the coronary artery. The thrombus removing device comprises a suction device and a thrombus taking support movably connected with the suction device. The thrombus extraction stent is of a self-expansion structure, at least three barbs are arranged on the inner side of the self-expansion structure, and the free ends of the barbs face the near end; bulges capable of increasing the surface roughness are arranged on the surfaces of the barbs and the self-expansion structures; the barbs are distributed in a spiral manner; the suction device comprises a suction guide pipe, and the end face of a suction opening of the suction guide pipe is an inclined face. The thrombus extraction support is located in the suction catheter and is adjacent to the inner wall of the suction catheter. According to the thrombus removing device for the coronary artery, thrombus suction and capturing are combined, the viscosity between thrombus and the thrombus removing device is enhanced by means of the special barbs spirally distributed on the self-expansion structure and the protrusions capable of increasing the surface roughness, and it is guaranteed that the thrombus is firmly captured and removed.

The embodiment of the present specification provides a hemostasis valve, comprising: a shell provided with a channel and a through hole, wherein the channel is suitable for passing a suction catheter, and the through hole is through the channel and has an included angle; and an execution component, which is partially accommodated in the through hole and is suitable for continuous movement in the through hole to squeeze or release the suction catheter. By using the above scheme, the adaptability, airtightness and convenience can be considered.

The application discloses a kind of suction catheter, including outer layer catheter, inner layer catheter, the inner layer catheter includes catheter main body, with the self-expandable distal end of distal end being connected and can be received into the outer layer catheter, hollow lumen is equipped in the catheter main body, the proximal end of the outer layer catheter is equipped with the first valve body being connected with it, the catheter main body passes through in the first valve body, the lateral interface being communicated with its interior is equipped in the side of the first valve body, the catheter main body side wall is equipped with the catheter gap corresponding with the lateral interface, the cooperation of the self-expandable distal end and catheter main body can be self-expandable, the self-expandable distal end can be consistent with the inner wall of blood vessel, can be used to capture free thrombus, avoid thrombus to escape into blood vessel and cause risk in the process of suction, directly through the catheter main body in the outer layer catheter suction, can effectively utilize the internal space of outer layer catheter, maximum effective suction diameter, maximum suction efficiency.

The utility model belongs to the technical field of medical auxiliary equipment, and discloses a device for storing a sputum suction catheter, which comprises a storage box, a recovery bin, a tool bin and a storage bin are sequentially arranged in the storage box from left to right, the outer wall of the tool bin is hinged with a bin door, the top of the recovery bin is provided with a recovery port, a storage box is inserted in a mounting seat, and the storage box is connected with the tool bin. The device comprises a storage box, a storage bin is arranged in the storage box, a discharging port is formed in the upper surface of the storage bin, a fixing base is fixedly installed in the storage bin, a motor is fixedly installed on one side of the fixing base, and a bearing block is fixedly installed at the end of an output shaft of the motor. The used sputum suction tubes are placed in the recycling bin through the recycling opening, the used sputum suction tubes are stored in a unified mode through the recycling drawer in the recycling bin, various medical workpieces are stored through the tool bin, and the used sputum suction tubes and the unused sputum suction tubes can be placed in a classified mode through the storage device.

The present application relates to the technical field of measurement, provide a kind of multi-azimuth measurement receiving target position, including shell, the inner wall of the shell is slidably connected with support frame, the inner wall of the support frame is movably connected with joint ball, the inner wall of the joint ball is fixedly connected with rotating rod, the top of the rotating rod is movably connected with target, the bottom of the rotating rod is fixedly connected with synchronous assembly.The multi-azimuth measurement receiving target position and its measurement method, by adjusting the distance frame to drive support frame to move, while adjusting the distance frame to drive air bag to move, air bag is stretched to start to inhale, catheter plays the effect of changing direction, since the outer wall of catheter is fixedly connected with fixed block, then catheter cannot be extruded deformation by adjusting distance frame, air bag inhales to make gate open downward, gate is compressed torsion spring by opening downward, air bag inhales dust around target, avoid dust particles to cause laser to be blocked, affect building distance measurement avoids laser path to be blocked to cause ranging data to be influenced.

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.

Aspects are directed to an improved suction catheter that increases the effectiveness of clearing the airway, reducing the need for separate suctioning and foreign body grasping instruments. The embodiments described herein provide medical personnel the ability to use one hand and catheter to selectively grasp an anatomically lodged foreign body while reducing the likelihood of lumen blockage and interruption of suction. The embodiments described herein further provide an auxiliary access port that allows insertion of a bougie instrument into a suction catheter. The suction catheter may be a Yankauer device or improved suction catheter with grasping housing. The bougie instrument may extend through the access port and a lumen of the catheter while still providing suction via the lumen. Due to the small size of the suction catheter, the bougie instrument may extend from the catheter's distal end when placed in close proximity to a patient's vocal cords.

The novel pulse suction catheter comprises an inner tube and an outer tube, the outer tube is coaxially arranged on the outer side of the inner tube, the ends, away from a suction head, of the outer tube and the inner tube are connected through a connecting mechanism, the inner tube can slide and rotate relative to the outer tube, and a negative pressure suction cavity is formed between the inner tube and the outer tube; a negative pressure device is connected through a connecting port of a negative pressure connecting mechanism at the rear part for suction, so that a double-tube suction function is realized; an adjusting mechanism used for adjusting the bending direction of the front end of the inner pipe is arranged behind the connecting mechanism and connected with the inner pipe through an adjusting line. The device further comprises a pulse suction device, and the pulse suction device is connected with the multifunctional interface of the connecting mechanism. The rear-end negative-pressure connecting structure is connected with a negative-pressure device for suction, double-tube suction is formed in the annular part between the inner tube and the outer tube through one negative-pressure source, double suction of sputum in the trachea is achieved, the risk that the sputum blocks the trachea is reduced, the suction efficiency is improved, and the catheterization time of a patient is shortened.

The invention relates to a laryngoscopy system for performing a safe and simple insertion procedure for inserting at least one medical instrument, which is not an endotracheal tube, into a patient. The laryngoscopy system comprises, as mutually separate components, at least one video intubation laryngoscope and the medical instrument, e.g., a suction catheter or an endoscope. Furthermore, the invention relates to the field of intubating a patient with an endotracheal tube as well as to additional procedures in the field of laryngoscopy, e.g., for performing a laryngoscopic examination and / or a laryngoscopic procedure on a patient.

The application provides an extracorporeal control device, a control method and a thrombus suction device for thrombus suction. The extracorporeal control device comprises a main pipeline, a main valve, a pressure display device, a main static negative pressure source and at least one secondary negative pressure control unit. The distal end of the main pipeline is used for detachable connection with the proximal end of a suction catheter, the main valve is arranged at the distal end of the main pipeline, the pressure display device is in communication with the main pipeline and is close to the proximal end of the main valve, the main static negative pressure source is used for generating a static suction negative pressure, and the main static negative pressure source is in communication with the main pipeline and is located at the proximal end of the main valve. Each secondary negative pressure control unit comprises a secondary valve and a secondary static negative pressure source, and the secondary valve is used for enabling the secondary static negative pressure source to be in communication with or disconnected from the main pipeline. The technical scheme of the application can detect and display the suction negative pressure change condition in the thrombus suction process, is beneficial to quickly judging the reason why the thrombus cannot be sucked out, timely and correctly taking corresponding measures, improving the treatment efficiency and reducing the treatment risk.

A device, system, and method are provided for accessing and sampling target tissues in body cavities. In some embodiments, the device includes a sheath with a sampling lumen for needle passage, a distal flange for anchoring, and optional features like balloons, cuffs, and suction catheters. The system may incorporate a sampling needle, possibly with an SPME coating. Insertion methods use guidewire and dilator techniques for minimally invasive placement. This enables repeated, low-risk sampling for diagnostic and research applications.

The embodiment of the utility model provides an adjustable bent suction catheter system for thrombus cutting, and relates to the field of medical instruments. The adjustable bending suction catheter system for thrombus cutting comprises an adjustable bending suction catheter and a thrombus cutter, the adjustable bending suction catheter comprises a suction tube body and a bending adjusting mechanism, the bending adjusting mechanism is connected with the suction tube body, the bending adjusting mechanism is used for controlling the bending degree of the far end of the suction tube body, and the thrombus cutter is movably arranged on the suction tube body. According to the thrombus cutting bendable suction catheter system, the treatment effect and operation efficiency of intervention type thrombus suction treatment can be improved, repetition and complexity of the operation process of medical staff are reduced, pain and treatment cost of a patient in the operation process are reduced, and postoperative complications such as vascular injury and perforation in the operation process are reduced.