12018results about "Suction devices" patented technology

The present invention includes a spray drying disposable device for use in a spray drying system. The disposable has a spray drying head and a plasma drying chamber. The head has a spray dry nozzle assembly in fluid communication with the plasma source and the pressurized aerosol gas source. The pressurized gas flows in a vortex pattern that atomizes plasma droplets in the chamber. The head also includes a plenum has uniform air pressure of the drying gas. A baffle plate forms the floor of the plenum having drying gas jets that supply drying gas to the chamber. The atomized plasma droplets evaporate in the presence of the drying gas emitted from the jets to obtain dried plasma particles and humid air. A capture filter captures the dried plasma particles and allows the humid air to pass. The humid air passes through the gas outlet and the exhaust port.

A fluid management system for use in a tissue resection procedure includes a controller. An inflow pump is operated by the controller and configured to provide fluid inflow through a flow path to a site in patient's body. An outflow pump is operated by the controller and configured to provide fluid outflow through a flow path from the site in patient's body. A motor driven resecting device may be provided for resecting tissue at the site. The controller is configured to actuate an inflow pump and an outflow pump in response to various signals and various algorithms are provided to provide malfunction warnings and assure safe operation.

A catheter occlusion device includes a support body configured to enclose a portion of the catheter and an inflatable member coupled to the support body. The inflatable member is in fluid communication with an inflation line. The inflatable member is configured to transition between a deflated state and an inflated state to collapse the portion of the catheter enclosed in the support body. A surface of the inflatable member can include an adhesive configured to adhere to an outer surface of the catheter. The inflatable member can include opposing first and second chambers configured to inflate toward one another to collapse the portion of the catheter enclosed in the support body.

The disclosure provides for a variable stiffness catheter. The catheter may include an inner layer forming an inner lumen, a middle layer surrounding the inner layer, and an outer layer surrounding the middle layer. The middle layer may form a lumen and may include a plurality of strings within the lumen. The catheter may also include a wrapping weaved through the plurality of strings of the middle layer. Applying a vacuum, actuating by applying negative pressure, or evacuating fluid from the lumen of the middle layer alters a frictional force between the inner layer and the outer layer or between elements of the middle layer and thereby changes the catheter's flexural rigidity over a defined region.

The invention provides an expectoration auxiliary control method and device. The method comprises the steps that audio signals of breathing sounds and cough sounds at multiple positions of the chest of a patient are collected through an audio sensor array, and a standardized audio feature data set is obtained through noise reduction, segmentation and feature extraction; a dynamic weighted graph model is constructed, and a random edge sampling algorithm and a parallel batch processing dynamic algorithm are combined to analyze and obtain a sputum viscosity index and a sputum distribution position map; based on the result, mapping the vibration parameter space into an unweighted disk diagram, and obtaining a personalized vibration treatment scheme by using a shortest path algorithm; in combination with the real-time breathing cycle of the patient, working parameters of the sound wave vibrator and the negative pressure suction device are synchronously controlled, and a coordinated and consistent multi-mode treatment execution instruction is obtained; and collecting real-time feedback data in treatment, and dynamically adjusting working parameters through reinforcement learning to obtain an optimized expectoration adjuvant therapy scheme. Intelligent adjustment can be achieved based on the real-time breathing state and sputum characteristics of the patient, the expectoration efficiency is improved, and discomfort of the patient is reduced.

Disclosed herein are several embodiments of a wound treatment apparatus employing a wound dressing for negative pressure wound therapy and methods of using the same. Some embodiments are directed to improved wound dressing to be applied to a wound site, for example a wound dressing including a three-dimensional filter element, and methods of using the same.

The invention relates to the technical field of intraoperative bleeding amount monitoring, and provides an intelligent intraoperative bleeding amount monitoring and alarming method and system.The method comprises the steps that during an operation, blood, body fluid and cleaning fluid in an operation area are cleaned in time through a suction bottle and gauze; after the gauze is used, the absorbed liquid is partially screwed out and flows into the liquid collecting tank; weight changes of the suction bottle and the gauze storage area are detected in real time respectively, signals are transmitted to the data processing module, the concentration of hemoglobin in the two kinds of liquid is detected, the concentration of blood in the liquid is calculated, and the concentration of the hemoglobin in the liquid is calculated by combining the amount of the liquid sucked by the suction bottle and the amount of the liquid taken out by the gauze in real time. The amount of blood brought out by the gauze and the amount of blood sucked out by the suction bottle are calculated in real time, the real-time bleeding amount of a patient in an operation is obtained, and when the real-time bleeding amount reaches a threshold value, early warning is given out. The problems that errors are large in a traditional method, and particularly in a large amount of blood loss or a complex operation scene, the blood loss dynamic state is difficult to master timely and accurately are solved.

Systems and methods directed to an assisted fluid drainage system including a proximal ejector pump and a distal ejector pump coupled to a drainage tube. At least one of the proximal ejector pump and the distal ejector pump can utilize a venturi effect to move a bodily fluid through the drainage tube to prevent the formation of dependent loops, which can form within fluid drainage tubes when slack portions create a positive incline. At least one of the proximal ejector pump and the distal ejector pump can include a converging section, a diffuser section, and a diverging section. A diameter of the diffuser section can be less than a diameter of the converging section or the diverging section. A controller can be coupled to the proximal ejector pump and the distal ejector pump to initiate operation of one or both of the pumps in response to an event.

Disclosed herein are clot treatment systems including integrated / systemized mechanical thrombectomy devices and clot treatment devices, and associated devices and methods. In some embodiments, a method of removing clot material from a blood vessel of patient includes inserting a catheter to proximate the clot material within the blood vessel while radially constraining a clot treatment device and an embolic protection device within the catheter. The method can further include moving the catheter proximally to deploy the clot treatment device at least partially distal to clot material within the blood vessel, and then moving the catheter further proximally to deploy the embolic protection device at least partially proximal to the clot material.

An aspiration thrombectomy system for use with a vacuum source and an aspiration catheter includes a connection tubing configured to act as a fluid conduit between an aspiration catheter, a fluid source, and a vacuum source. The system may be provided with pressure sensors associated with the connection tubing, and controllable valves. A controller may detect pressure profiles in the connection tubing via one or more pressure sensors. The controller may determine whether connection tubing is occluded based on the detected pressure profiles, and may determine a location of occlusion. The controller may operate one or more valves to introduce a fluid medium into the connection tubing.

The invention relates to the technical field of medical instruments, and provides a vacuum sealing drainage dressing and a wound surface treatment device.The vacuum sealing drainage dressing comprises a sealing layer and a dressing layer which are sequentially arranged in a stacked mode from top to bottom, and further comprises a drainage assembly; the drainage assembly comprises a sucker and a drainage tube, the sucker is arranged at the adsorption opening of the sealing layer, and the drainage tube is connected to the sucker; the dressing layer is of a porous structure, hole walls are communicated with one another to form a continuous channel, the dressing layer is provided with a flexible plasma patch, the flexible plasma patch is suitable for generating plasma acting on a wound surface, and the flexible plasma patch is provided with through holes communicated with pores. The flexible plasma patch is integrally arranged on the dressing layer, negative pressure drainage and wound sterilization and disinfection combined healing promoting treatment can be achieved, the wound or wound treatment process can be simplified, inconvenience caused by frequent dressing change is reduced, and the faster and better healing effect is achieved.

Disclosed herein are systems and methods for providing targeted temperature management (TTM) therapy to a patient. Systems included herein provide an airflow to the patient in additional to a liquid flow that define a thermal energy exchange with the patient. Various systems may provide air at a defined TTM temperature to a thermal contact pad, a mattress or a ventilator that delivers the TTM air to the patient via the ventilation therapy. Also disclosed herein are systems, devices, and methods for preventing, managing, and / or removing perspiration moisture from between the thermal contact pad and the patient. Disclosed herein is a thermal contact pad includes a wicking material to draw moisture away from the patient. Disclosed herein also is a thermal contact pad including airflow that draws moisture away from the patient.

A differential pressure regulating device is provided for controlling in-vivo pressure in a body, and in particularly in a heart. The device may include a shunt being positioned between two or more lumens in a body, to enable fluids to flow between the lumens, and an adjustable flow regulation mechanism being configured to selectively cover an opening of the shunt, to regulate the flow of fluid through the shunt in relation to a pressure difference between the body lumens. In some embodiments a control mechanism coupled to the adjustable flow regulation mechanism may be provided, to remotely activate the adjustable flow regulation mechanism.

The invention discloses a burn and plastic negative pressure wound debridement and healing promoting device which is characterized in that the device comprises an application, a double-shaped connecting assembly and a negative pressure suction unit, the negative pressure suction unit comprises a base, a hollow column, a rotary driving mechanism and a negative pressure machine, a mounting cavity is formed in the base, a plurality of air pipe joints are arranged on the base in the longitudinal direction, and the air pipe joints are connected with the hollow column. The hollow column is vertically installed on the base, a plurality of negative pressure holes communicated with the interior are evenly formed in the hollow column in the circumferential direction at intervals, the negative pressure holes correspond to the air pipe joints one to one, and the negative pressure holes in the hollow column are sequentially communicated with inner ports of the corresponding air pipe joints in the clockwise direction; the invention aims to promote blood circulation and healing of burn and plastic wounds through a dynamic negative pressure technology, reduce infection risk, improve treatment effect and patient comfort, and realize repeated disassembly and assembly of the application.

The invention provides an intelligent liposuction needle system, and the system comprises a liposuction needle assembly which is used for liposuction operation; the liposuction needle power assembly is used for driving the liposuction needle assembly to twitch; the negative pressure assembly is used for providing negative pressure for the liposuction needle assembly; and the intelligent control system is used for controlling the liposuction needle power assembly and the negative pressure assembly. According to the technical scheme, the automation level of the liposuction needle system is improved.

Disclosed herein are automatic-locking and automatic-unlocking syringes, and associated systems and methods. In some embodiments, a syringe can include a barrel, a plunger assembly slidably positioned within the barrel, and a locking assembly coupled to the barrel. The syringe is configured to (i) automatically lock the plunger assembly to the locking assembly when the plunger assembly is withdrawn through the barrel with a vacuum in the barrel, (ii) automatically unlock the plunger assembly from the locking assembly when the barrel no longer experiences vacuum and / or experiences negligible vacuum, and / or (iii) inhibit or even prevent automatic locking of the plunger assembly to the locking assembly when the plunger assembly is withdrawn through the barrel with no and / or negligible vacuum within the barrel.

To provide systems and methods suitable for delivering a therapeutic agent to a target site.SOLUTION: The system comprises a container for holding the therapeutic agent, and a pressure source having pressurized fluid, where the pressure source is in selective fluid communication with at least a portion of the container. A catheter is placed in fluid communication with the container, and has a lumen sized for delivery of the therapeutic agent to a target site. A housing is configured to securely retain the container. The system further comprises a camera having a camera head coupled to the catheter, where the camera provides a visual image of the target site during the delivery of the therapeutic agent.SELECTED DRAWING: Figure 1

The present invention discloses a burn plastic surgery negative pressure wound debridement and healing promotion device, characterized in that it comprises a patch, a double-shaped connection component and a negative pressure suction unit, the negative pressure suction unit comprises a base, a hollow column, a rotary drive mechanism and a negative pressure machine, a mounting cavity is arranged in the base, a plurality of tracheal joints are arranged longitudinally on the base, the hollow column is vertically mounted on the base, a plurality of negative pressure holes connected to the interior are evenly spaced along the circumferential direction on the hollow column, the negative pressure holes correspond to the tracheal joints one by one, and the negative pressure holes on the hollow column are connected in sequence with the corresponding inner ports of each tracheal joint in a clockwise direction; the present invention aims to promote blood circulation and healing of burn plastic surgery wounds through dynamic negative pressure technology, reduce infection risks, improve treatment effects and patient comfort, and at the same time realize repeatable disassembly and assembly of the patch.

Systems and methods for monitoring a bypass device for protecting an intestinal anastomosis are provided. The system includes a pump, one or more fluid inlet lines fluidicly coupled to the pump and to a negative pressure chamber of the bypass device, and one or more sensors configured to measure data indicative of pressure within the negative pressure chamber. A controller operatively coupled to the pump and the one or more sensors may be programmed to actuate the pump to generate a vacuum within the negative pressure chamber to thereby pull intestinal tissue towards the bypass device to anchor the bypass device at a target location upstream of the intestinal anastomosis. The controller further may compare the pressure within the negative pressure chamber with a predetermined pressure range and, if the pressure falls outside the predetermined pressure range, adjust the pump to maintain the vacuum within the predetermined pressure range.

A fluidics management system includes a cassette configured to receive saline from a saline source, receive contrast from a contrast source, and receive vacuum from a vacuum source. The cassette includes a plurality of saline connectors, each of the plurality of saline connectors configured to couple to one of a plurality of catheters to provide saline thereto, a plurality of contrast connectors, each of the plurality of contrast connectors configured to couple to one of the plurality of catheters to provide contrast thereto, and a plurality of vacuum connectors, each of the plurality of vacuum connectors configured to couple to one of the plurality of catheters to provide vacuum thereto.

The present embodiments provide systems and methods suitable for delivering a therapeutic agent to a target site. In one example, the system comprises a container for holding the therapeutic agent, and a pressure source having pressurized fluid, wherein the pressure source is in selective fluid communication with at least a portion of the container. A catheter is placed in fluid communication with the container, and has a lumen sized for delivery of the therapeutic agent to a target site. A housing is configured to securely retain the container. The system further comprises a camera having a camera head coupled to the catheter, wherein the camera provides a visual image of the target site during delivery of the therapeutic agent.

Provided is an ease-to-operate automatic flushing structure, comprising a mounting housing (2), an injector driving mechanism, and an injector clamping mechanism. The mounting housing (2) is a structure with a clamping groove on a side portion thereof, and the injector clamping mechanism is arranged on an outer side of the clamping groove. The injector driving mechanism is arranged in the mounting housing (2). Also provided is an oocyte acquisition device, comprising an acquisition device body. An automatic flushing structure is arranged on a side portion of the acquisition device body.

The utility model relates to the technical field of drainage bags and discloses an anti-backflow drainage bag which comprises a drainage bag body and a drainage tube, a drainage connector is arranged in the center of the upper end of the drainage bag body, an anti-backflow assembly is arranged at the upper end of the drainage connector, and a liquid outlet in the lower end of the drainage tube is connected with the upper end of the anti-backflow assembly. A side frame is arranged on one side of the back of the drainage bag body. According to the anti-backflow drainage bag, by arranging the fixing blocks, the side frames can be fixedly installed conveniently, when the anti-backflow drainage bag is fixed to the body of a patient, the side frames can limit the position of the drainage bag body, the drainage bag body is effectively prevented from being tightly attached to the skin of the patient, the air permeability between the drainage bag body and the skin of the patient is guaranteed, and the comfort of the patient is improved.

The invention discloses a multifunctional thoracic surgery anti-blocking drainage device, and relates to the technical field of thoracic surgery anti-blocking equipment, the multifunctional thoracic surgery anti-blocking drainage device comprises a water seal bottle, the top end of the water seal bottle is connected with a connecting pipe, the connecting pipe is connected with a drainage pipe through an anti-blocking assembly, and the adjusting assembly is assembled in the anti-blocking assembly; the anti-blocking assembly comprises an anti-blocking box communicating with the connecting pipe and the drainage pipe, a micro motor is installed at the bottom of the anti-blocking box, an output shaft of the micro motor penetrates through the anti-blocking box to be connected with a rotating shaft, blades are connected to the periphery of the rotating shaft, and liquid flowing openings are formed in the side faces of the blades. The inner wall of the anti-blocking box is fixedly connected with two symmetrical limiting plates, the two limiting plates are slidably connected with adjusting plates through inner grooves formed in the limiting plates, one side of each adjusting plate is provided with an oblique angle, and through rotary stirring of the blades, the fluidity of viscous accumulated liquid is enhanced, the blocking risk is reduced, the agglomeration structure is broken, and accumulated liquid components are evenly distributed.

The invention discloses an anti-falling abdominal cavity drainage tube, and relates to the technical field of medical equipment. The device comprises a fixing band, a supporting tube is installed in the fixing band, and a guiding tube is arranged in the supporting tube; a fixing assembly is arranged on one side of the supporting pipe and comprises a sealing pipe, the sealing pipe is fixedly connected to the surface of the supporting pipe, the surface of the supporting pipe is sleeved with an adjusting pipe, and a rubber plug is arranged in the adjusting pipe. Through the arrangement of the fixing assembly, before a guiding tube is inserted into a patient, the guiding tube is firstly inserted into the adjusting tube, the supporting tube and the imbedding tube and then inserted into the body of the patient, after the guiding tube is imbedded into a designated position, the adjusting tube can be rotated manually, and the adjusting tube drives a push block to push a rubber plug, so that the guiding tube is inserted into the body of the patient; the rubber plug is attached to the guide tube, telescopic movement of the guide tube is limited through friction force, and the connection stability of the guide tube can be improved.

The invention discloses an anesthesia puncture outfit for a surgical patient, and relates to the technical field of anesthesia puncture outfit, the anesthesia puncture outfit comprises a puncture handpiece, the puncture handpiece is provided with a puncture needle sheath; an anesthesia administration part is mounted on the puncture handpiece; the anesthesia administration part is used for sliding on the puncture needle sheath piece; the puncture needle sheath piece is used for guiding the anesthesia administration part; a bubble removing guide piece is mounted on the puncture handpiece; the bubble removing guide piece is used for exhausting; a sampling sealing piece is mounted on the defoaming guide piece; the anesthesia administration part can be matched with a puncture needle sheath piece, a doctor can conveniently and rapidly conduct puncture anesthesia work, the structure is easy to operate, the doctor can more conveniently locate the arachnoid, the accuracy of medicine injection of the subarachnoid space is guaranteed, and the problems that an existing anesthesia puncture outfit for a surgical patient is inconvenient to prompt the doctor to penetrate through the subarachnoid space, and the working efficiency is high are solved. And excessive puncture is easily caused.

Articles for reducing the risk of infection, bearing, or containing an antimicrobial composition containing a solid-phase peroxyxcarboxylic acid metal salt are provided. Methods of reducing the risk of infection using the antimicrobial composition are also provided.

The invention provides a liposuction needle cannula system and method, and the system comprises a cannula assembly which is used for forming a liposuction space at a liposuction part; the liposuction needle assembly is arranged in the sleeve assembly in a sliding and penetrating mode and used for conducting liposuction operation in the liposuction space. According to the technical scheme, tissue damage is reduced, and the fat cell survival rate and the liposuction efficiency are improved.

Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly, canister, and a wound dressing configured to be positioned over a wound. The pump assembly, canister, and the wound dressing can be fluidically connected to facilitate delivery of negative pressure to a wound. The system can additionally include a valve configured to control the introduction of positive pressure to the wound.

The utility model relates to the technical field of medical instruments, in particular to a plasma operation electrode tool bit which aims at solving the problem that a plasma operation electrode suction channel in the prior art is prone to being blocked and comprises an insulating base, and the insulating base is provided with an end face and a suction channel penetrating through the end face. The first electrode wires are provided with sinking sections, and the sinking sections are located in the suction channel. According to the scheme, the first electrode wire sinking section is creatively arranged at the inlet, and after the first electrode wire is powered on, tissue at the inlet of the suction channel is cut again under the action of an electric field. Compared with the traditional technical thought that the shielding area of the suction channel is reduced as much as possible, the scheme creatively performs secondary cutting on the blocked tissue by means of the electric field effect, blockage at the inlet of the suction channel is effectively reduced, and normal operation is guaranteed.