221results about "Suction pumps" patented technology

The invention discloses a postoperative drainage device for clinical nursing and a monitoring system, and belongs to the technical field of biomedical engineering. The problems that an existing device manually monitors drainage liquid data, consequently, the monitoring precision is insufficient, and the complication probability cannot be predicted are solved, drainage liquid and patient vital sign data are collected in real time through the micro spectrograph, the character multi-parameter sensor, the micro pressure sensor and the intelligent bracelet and transmitted to the remote monitoring platform, and the monitoring accuracy is improved. Medical staff can check real-time data of a patient at any time and adjust a treatment scheme in time, so that the nursing efficiency and quality are improved; multi-parameter data such as color, metering and property of drainage liquid and vital sign data are analyzed through a risk prediction model, intervention measures are dynamically adjusted according to different complication types and probabilities in combination with patient condition changes and real-time monitoring data, accurate intervention on the complication is achieved, and the occurrence rate and severity of the complication are reduced.

A negative pressure wound therapy system includes a wound dressing, at least one pump fluidly coupled to the fluid interface, a pressure sensor fluidly coupled to the wound dressing, a control housing, and an electrical coupler. The wound dressing includes a sealing layer, an absorbent layer adjacent to the sealing layer, and a fluid interface attached to at least one of the sealing layer or the absorbent layer. The at least one pump is configured to apply negative pressure to the fluid interface to draw fluid from the wound dressing via the fluid interface. The pressure sensor is configured to detect a fluid pressure of the wound dressing. The control housing is remote from the wound dressing. The electrical coupler is configured to removably connect the control housing to the at least one pump.

The invention discloses a peritoneal drainage flushing device based on multi-dimensional parameter monitoring and a negative pressure regulation and control system, and belongs to the technical field of peritoneal drainage. The peritoneal drainage flushing device and negative pressure regulation and control system based on multi-dimensional parameter monitoring comprises a device support, a multi-channel rotary valve and two negative pressure pumps, a flow guide pipe and a backflow pipe are arranged between the two negative pressure pumps and the multi-channel rotary valve, and pipeline detection modules are installed on the flow guide pipe and the backflow pipe. The peritoneal drainage device solves the problems that an existing peritoneal drainage device is not ideal in treatment effect and affects the treatment effect when a drainage tube is blocked, early intervention is carried out by adjusting a negative pressure pump, a multi-channel rotary valve and a three-way electromagnetic valve, targeted treatment is automatically triggered at the early stage of complications through continuous and multi-dimensional monitoring, and the treatment effect is effectively improved. The tube blocking rate, the abdominal infection rate and the abdominal hypertension syndrome occurrence rate are remarkably reduced, the pain of a patient is relieved, the recovery time is shortened, and personalized and self-adaptive adjustment is carried out according to the physical state of the patient.

The invention discloses a thoracic surgery pulmonary infection effusion drainage device and belongs to the technical field of medical instruments, the thoracic surgery pulmonary infection effusion drainage device comprises a drainage catheter structure, a filtering structure and a connecting assembly, the drainage catheter structure comprises an insertion tube, the two ends of the insertion tube are connected with a fixing tube and a hemispherical end respectively, and a partition plate is arranged in the insertion tube and the fixing tube; a plurality of drainage holes are formed in the end, close to the hemispherical end, of the insertion tube in the circumferential direction, and a medicine feeding hole is formed in the portion, above the drainage holes, of the insertion tube and communicated with the monitoring cavity. By means of the semispherical end and the drainage hole of the drainage catheter structure, lung tissue is prevented from being scratched when thoracic wall puncture is conducted, the lung tissue damage rate can be reduced to be smaller than or equal to 0.5%, drainage, pressure monitoring and drug administration are achieved through the double-cavity structure, one-time puncture is completed, and the pain of a patient is relieved; by arranging the partition plate, the drainage cavity and the monitoring cavity are isolated, liquid medicine is prevented from polluting an effusion sample, and the infection risk is reduced.

This disclosure relates to systems for medical fluid pumps and related methods. In some implementations, a system includes a system for draining fluid from a peritoneal cavity of a patient comprising a microfluidic pump; a drain bag fluidly coupled to the microfluidic pump; and an inlet line coupled to the drain bag, wherein the microfluidic pump is configured to apply a negative pressure to an interior of the drain bag to draw effluent from a peritoneal cavity of the patient along the inlet line and into the drain bag. In some implementations, a system for performing peritoneal dialysis includes a microfluidic pump; a dual chamber bag fluidly coupled to the microfluidic pump, where the dual chamber bag includes an effluent chamber configured to be fluidly coupled to a peritoneal cavity of a patient; a dialysate chamber; and a flexible membrane separating the effluent chamber from the dialysate chamber.

An aspiration thrombectomy system for use with an aspiration catheter, connection tubing to place a vacuum source and the aspiration catheter in fluid communication, controllable valves to control a level of negative pressure provided by the vacuum source, ultrasonic sensors to detect ultrasonic energy in the aspiration catheter or the connection tubing, and an automated controller to generate, via the controllable valves, while the system is operated in a first operational state, a pressure wave in the aspiration catheter or the connection tubing, detect, via the ultrasonic sensors, ultrasonic energy in the aspiration catheter or the connection tubing based on ultrasonic energy originating from the ultrasonic sensors, determine, based at least in part on the generated pressure wave and the detected ultrasonic energy, a system state in the aspiration catheter or the connecting tubing, and operate, based on the determined system state, the system in a second operational state.

The cyclical suction system generates an intermittent cyclically spaced cyclical suction pressure waveform of a vacuum pressure below atmospheric pressure and a positive pressure above the vacuum pressure. The system includes a flexible inlet tubing connected in fluid communication between a vacuum pump and a suction conduit. A positive pressure pulse generator mechanism intermittently cyclically applies an external force that compresses the segments of the flexible inlet tubing, thereby reducing the internal volume and displacing fluid that can be collected therein, thereby generating positive pressure pulses. Upon withdrawal of the applied external force, the flexible inlet tubing is configured to be able to be forced to return to an uncompressed state, thereby increasing the internal volume while reducing pressure therein until the vacuum pressure ultimately regenerates, thereby minimizing return time and maximizing cycle frequency.

This invention discloses a suction device for treating otitis media in children, belonging to the field of otitis media treatment technology. It comprises a fixed spring, a connecting sleeve, a suction catheter, a fixed needle sleeve, and a clamping sleeve. After the fixed block on the inner wall of the clamping sleeve aligns with the arc-shaped groove, releasing the connecting sleeve causes the first moving block to reset within the strip-shaped mounting groove under the rebound of the fixed spring. This moves the connecting sleeve from the mounting sleeve surface to the clamping sleeve surface, while simultaneously squeezing the clamping sleeve to clamp it onto the fixed needle sleeve surface until the fixed block engages in the annular groove. At the same time, the connecting sleeve is pressed against the limiting block, causing the inner wall of the connecting sleeve to squeeze the second rubber retaining ring, thus clamping and fixing the connecting sleeve onto the clamping sleeve surface. This ensures that when the suction needle is inserted into the child's ear canal for suction treatment, the fixed needle sleeve will not detach from the suction catheter surface due to the child's struggles.

To provide a pump configured to be deployed in a patient's body.SOLUTION: A pump assembly for increasing urine output from a patient includes at least one ureteral catheter 614 including a distal portion having a retention portion 624 configured to be positioned in a kidney, renal pelvis, and / or ureter of the patient and a proximal portion defining a drainage lumen. The retention portion includes at least one drainage port 626 that permits fluid flow into the drainage lumen. The pump assembly further includes a pump 612 configured to provide negative pressure to at least one of the renal pelvis or the kidney through the drainage lumen of the at least one ureteral catheter. The pump includes at least one fluid port in fluid communication with the drainage lumen of the proximal portion of the ureteral catheter for receiving fluid from the patient's kidney, and at least a portion of the pump is configured to be positioned within the patient's body.SELECTED DRAWING: Figure 15A

An apparatus for mechanically coupling a motor to a rotor includes an outer ring including an inner surface shaped to define multiple recesses, an inner ring disposed within the outer ring and shaped to define multiple compartments having respective outer openings, which face the outer ring, and respective inner openings opposite the outer openings, and multiple gripping elements disposed within the compartments, respectively. The inner ring is configured to receive the rotor while the compartments are aligned with the of recesses, by virtue of the gripping elements sitting at least partially within the recesses. The outer ring is configured to couple with a shaft coupled with the motor such that rotation of the shaft by the motor causes the compartments to become misaligned with the recesses, thereby causing the outer ring to push the gripping elements, through the outer openings, against the rotor, through the inner openings.

A pump tube unit according to the present application, in an examination or surgery using an endoscope, reliably supplies water to the endoscope, and also improves the water cutoff condition when the water supply device is stopped; the pump tube unit is provided with: a pump tube provided to a pump having a rotating body with a plurality of pressing portions arranged at an outer peripheral edge portion, and repeatedly performing the operation of sending out liquid to the downstream side and introducing new liquid from the upstream side by being sequentially pressed by any one of the plurality of pressing portions when the rotating body rotates; an upstream-side water supply tube connected to an upstream end portion of the pump tube; a downstream-side water supply tube connected to a downstream end portion of the pump tube; and a bypass water supply tube connected across the upstream-side water supply tube and the downstream-side water supply tube to cause part of the liquid flowing in the downstream-side water supply tube to flow back to the upstream-side water supply tube; the bypass water supply tube is provided with a small-diameter portion in a prescribed range other than the both end portions of the bypass water supply tube, and the inner diameter of the small-diameter portion is smaller than the inner diameters of the other ranges.

Certain embodiments provide a vacuum generation system with an override PID controller, a proportional valve, and a vacuum generator. The override PID controller allows the vacuum generation system to control the operating range of supply air pressure that is provided to the vacuum generator. By controlling the operating range of the supply air pressure, the vacuum generation system is able to avoid entering the decreasing or non-monotonic region of the vacuum generator.

A method for controlling a medical device. The method includes providing a conduit coupled to a pump, the pump configured to selectively provide a pressure in the conduit, a motor configured to selectively drive the pump at an operating frequency to provide the pressure in the conduit, and a controller configured to selectively drive the motor and monitor the medical device. The method includes selectively driving the motor at an indicating frequency that is different from the operating frequency when the controller identifies a value outside of a threshold for the medical device. The indicating frequency produces an indicating audible or haptic feedback that is greater than an operating audible or haptic feedback provided at the operating frequency.

A fluid management system is disclosed that includes a software-controlled, electromechanical device for use in combination with a single-use or multi-use tubing set. The fluid management system's functions include fluid pressurization, fluid warming, fluid deficit monitoring (including flow-based and weight-based), aspiration, fluid collection, and fluid drainage (including indirect and direct drainage options). The system can be configured based on the surgical environment (e.g., operating room or clinic) and other user needs and / or preferences.

Examples of fluid collection systems and associated methods of use are described. The fluid collection system includes a fluid collection device having a chamber and configured to collect fluid from a user in the chamber. The fluid collection system includes a first conduit in fluid communication with the chamber of the fluid collection device. The fluid collection system includes a handheld pump unit connected or connectable to the first conduit and including a pump configured to generate a negative pressure to draw fluid from the chamber of the fluid collection device through the first conduit. The fluid collection system includes a fluid reservoir having an interior region in fluid communication with the first conduit and configured to collect fluid drawn from the chamber of the fluid collection device through the first conduit.

A pump tube unit according to the present invention includes a pump tube for sending and drawing liquid, an upstream-side water supply tube connected to an upstream-side end portion of the pump tube, a downstream-side water supply tube connected to a downstream-side end portion of the pump tube, and a bypass water supply tube, connected across the upstream-side water supply tube and the downstream-side water supply tube, and returns a part of the liquid flowing through the downstream-side water supply tube to flow back into the upstream-side water supply tube. The bypass water supply tube has a small-diameter portion in a predetermined range except for both end portions of the bypass water supply tube. The small-diameter portion has an inner diameter smaller than an inner diameter of other range.

The invention relates to the technical field of medical suction instruments, and provides a pure mechanical negative pressure drainage nursing system with self-adaptive pressure regulation, which comprises a wound dressing interface, a drainage pipeline, a liquid collection bag connected with the drainage pipeline, a self-adaptive negative pressure regulation module and a passage safety maintenance module, the drainage pipeline is sequentially connected with the passage safety maintenance module and the self-adaptive negative pressure adjusting module in the liquid drainage direction; the passage safety maintenance module is configured to switch a bypass and apply mechanical disturbance to the wall of the drainage tube to eliminate and relieve blockage when it is detected that liquid drainage is blocked; the self-adaptive negative pressure adjusting module is used for generating wound surface negative pressure and automatically adjusting drainage negative pressure when resistance exists in the drainage pipeline or the body position of the patient changes. The novel negative pressure suction structure has the advantages that the negative pressure can be adjusted, the suction effect is good, and nursing is easy and convenient.

The negative pressure suction system comprises a machine base and double-head negative pressure pumps, the double-head negative pressure pumps comprise a double-head negative pressure A pump and a double-head negative pressure B pump, the double-head negative pressure A pump is provided with an A pump air inlet and an A pump air outlet, and the double-head negative pressure B pump is provided with a B pump air inlet and a B pump air outlet; an A pump air inlet of the double-head negative pressure A pump is connected with a B pump air inlet of the double-head negative pressure B pump through a guide pipe; a negative pressure suction connector is arranged on the machine base and communicated with an A pump air inlet of the double-end negative pressure A pump. A three-way connector is arranged between an A pump air inlet of the double-end negative pressure A pump and the negative pressure suction connector, and the negative pressure suction connector is connected with the A pump air inlet of the double-end negative pressure A pump through the three-way connector; through cooperation of the negative pressure pump and the pressure release valve, the pressure value is maintained within a reasonable range, the silencing and shockproof effects are improved, environmental interference in an operation is reduced, meanwhile, safety protection is conducted on negative pressure drainage, and safe negative pressure is monitored in real time.

Accessories for a nasal aspiration device, comprising: - an accessory body (10) suitable for grasping; wherein the accessory body comprises: - a compressed air inlet channel (16) suitable for fluid communication with a compressed air generator (200) to obtain an airflow with a positive pressure, wherein the compressed air inlet channel (16) defines a constriction (16c) to generate a Venturi effect; - a suction channel (20) extending into the constriction (16c) and in fluid communication with a mucus inlet channel (14) such that a negative pressure is generated in the mucus inlet channel (14) by the Venturi effect, suitable for suctioning the mucus; - a mucus collection chamber (30) formed in the accessory body (10) which is in fluid communication with the mucus inlet channel (14); - an end nozzle (12) arranged at a distal end of the accessory body (10) and suitable forto be inserted at least partially into a user's nostril, wherein the mucus inlet channel (14) is formed in the end nozzle, wherein the suction channel (20) runs outside the mucus collection chamber (30) and characterized in that the end nozzle (12) is removably coupled to the accessory body (10) by means of a calibrated interference, wherein the calibrated interference is selected such that the end nozzle detaches from the accessory body when a positive pressure is generated in the accessory body which is higher than a certain limit value.

A chemical pump assembly and method useful for negative pressure therapy includes a chemical pump housing having an inner chamber and a reactor located within the inner chamber being configured to react with a selected gas found in air so as to consume the selected gas when exposed to air in the inner chamber. An opening is provided in the chemical pump housing that is in fluid communication with the inner chamber. A cover is disposed over at least a portion of the chemical pump housing for sealing the opening to prevent ingress of air through the opening into the inner chamber after activation of the reactor. The cover includes a cover body having an underside surface facing the chemical pump housing. The underside surface has an adhesive thereon for affixing the underside surface to the chemical pump housing a removable liner disposed over the adhesive on the underside surface, the removable liner including a pull tab extending laterally away from the chemical pump housing.

A peritoneal dialysis system includes a cycler having a pneumatic valve manifold or pneumatic arrangement, an air pump positioned and arranged to supply pneumatic pressure to the pneumatic valve manifold with or without intervening pneumatic storage, a pneumatic pressure sensor positioned and arranged to detect pneumatic pressure, and a control unit configured to use an output of the pressure sensor as feedback to adjust the air pump according to a set pneumatic pressure; and a disposable set including a pod pump having a flexible sheet, one side of the flexible sheet positioned and arranged during operation to receive pneumatic pressure via the air pump and pneumatic valve manifold.

An in-vivo temperature control system capable of adjusting a temperature in a biological lumen by continuously or intermittently discharging a liquid into the biological lumen such as the esophagus and collecting and eliminating the released liquid from a living body to the outside. The in-vivo temperature control system includes: a first tube having a first channel; a second tube having a second channel; a liquid storage section; a liquid injection pump for supplying the liquid from the liquid storage section to the first channel and discharging the liquid into a living body via the first channel; a liquid suction pump for collecting the liquid in the living body via the second channel; and a third tube provided with a third channel, connected at one end to the liquid suction pump, and opened to the outside at the other end. The liquid suction pump switches operation between discharge operation for discharging the liquid.

To provide an aspiration system for removing undesired matter such as thrombus from a lumen of the body such as a blood vessel.SOLUTION: A system for aspiration includes an aspiration catheter including an elongate shaft including an aspiration lumen, and an open distal end, an extension tube, a peristaltic pump, a compressible portion disposed between the distal end and the proximal end of the extension tube, the compressible portion configured to be coupled to the peristaltic pump, such that operation of the peristaltic pump drives fluid from the aspiration lumen from the distal end of the extension tube to the proximal end of the extension tube, and a controller configured to receive a first signal from a first sensor and configured to vary the operation of the peristaltic pump based at least in part on a first signal received from the first sensor coupled to the aspiration lumen or extension tube related to a change in the characteristic of flow.SELECTED DRAWING: Figure 38

The invention discloses an auxiliary support device for a patient in a body position limited state, which is characterized in that a sputum suction main machine and a gantry type bed-crossing bracket are subjected to collaborative structural design, so that sputum suction equipment can be reasonably arranged and transferred along with a bed under the body position fixing conditions such as orthopedic traction; the air pump is arranged on the traction structure, and rigid contact between the sputum suction main machine and the traction structure is relieved through the switchable hanging state during sputum suction work, so that the influence of operation vibration of the air pump on the traction stability is reduced; a relatively stable suction area is formed in the local part of the throat in the sputum suction process, the supporting force of the air bag is limited, stimulation to the throat of a patient is reduced, sputum suction and breathing are synchronously carried out through the independent breathing channel, rapid discharging and cleaning of the sputum tank are achieved through air path switching, and the sputum suction efficiency is improved. Therefore, the use safety, the operation stability and the practicability of the device in orthopedic postoperative and body position limited nursing scenes are improved.

The exemplary fluid collection assembly 100 comprises a fluid-impermeable barrier 102. The fluid-impermeable barrier 102 at least defines a cavity 104, at least one opening 106, and a fluid outlet 108. The fluid collection assembly 100 also comprises at least one porous material 110 disposed within the cavity 104. The porous material 110 includes at least one outer porous material. The outer porous material facilitates the porous material 110 receiving bodily fluid and allowing bodily fluid to flow therethrough.

A surgical plume evacuation console includes an inlet port, a filter assembly, a suction generator configured to generate a flow of an evacuated plume along an evacuation flow path, an exhaust assembly, and first and second insulation assemblies configured to attenuate noise. At least a portion of the evacuation flow path is defined from the inlet port, through the filter assembly, through the suction generator, and through the exhaust assembly. The first insulation assembly insulates at least a portion of the suction generator and the second insulation assembly insulates at least a portion of the exhaust assembly.

Example systems, catheters, and methods are disclosed for actively sampling a fluid. An example system includes a pump configured to pump fluid to direct the fluid a dissolved oxygen sensor and the dissolved oxygen sensor configured to output a signal indicative of an amount of dissolved oxygen in the fluid.

A negative pressure assembly includes a drape, a sealing element, a reactor, a valve and a mechanical pump assembly. The drape and the sealing element, when applied to the skin, cooperate to define an enclosed volume. The reactor is located so as to be in fluid communication with the enclosed volume when the drape is covering the dressing site. The reactor reacts with a selected gas found in air to consume the selected gas. The valve has a first operating state in which gas is drawn from the enclosed volume through the valve. The mechanical pump assembly includes a pump chamber fluidly connectable to the enclosed volume through the valve when the valve is in the first operating state. The mechanical pump is configured to fluidly connect with the enclosed volume and draw air from the enclosed volume into the pump chamber.

To provide surgical systems. [Solution] A surgical system is disclosed, comprising: a power supply operable to provide a supply amount of energy; a first surgical module electrically connected to the power supply; a second surgical module electrically connected to the power supply; and a controller operable to determine the amount of free energy available from the power supply to the second surgical module. The first surgical module is transitionable between an idle state in which the first surgical module draws a first amount of energy from the power supply and an active state in which the first surgical module draws a second amount of energy greater than the first amount of energy from the power supply. The amount of free energy corresponds to the difference between the supply amount of energy and the amount of energy drawn by the first surgical module.

A method for capturing dislodged vegetative growth during a surgical procedure is provided. The method includes maneuvering, into a circulatory system, a first cannula having a distal end and an opposing proximal end, such that the first cannula is positioned to capture the vegetative growth en bloc. A second cannula is positioned in fluid communication with the first cannula, such that a distal end of the second cannula is situated in spaced relation to the distal end of the first cannula. A suction force is provided through the distal end of the first cannula so as to capture the vegetative growth. Fluid removed by the suction force is reinfused through the distal end of the second cannula. Subsequent to becoming dislodged, the vegetative growth is captured by the first cannula. A method for capturing a vegetative growth during removal of a pacemaker lead is also provided.