377results 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.

An applicator for treating acne including one or more microneedles, an optical sensor configured to detect acne, a removal system including a suction mechanism configured to remove acne material, and a chamber for containing the acne material, a remedy system configured apply one or more acne remedies, a light source configured to apply a light therapy to skin, and a processor configured to detect acne at one or more affected areas on skin, and direct the applicator to apply treatment, where the treatment includes penetrating the skin at the one or more affected areas with the one or more microneedles, removing acne material with suction mechanism, applying the light therapy to the one or more affected areas, and applying one or more acne remedies to the one or more affected areas.

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.

A leakage-proof wearable breast pump includes a milk bottle, a front cover, and a negative pressure chamber, the front cover and the negative pressure chamber are both arranged above the milk bottle and a connecting chamber is provided therebetween; the connecting chamber is provided above the bottle mouth of the milk bottle, a buffer chamber is provided between the milk bottle and the connecting chamber, and the buffer chamber is communicated with the milk bottle and the connecting chamber respectively. The user wears the breast pump to move, the liquid surface in the milk bottle will shake, thereby overflowing the bottle mouth or the vent hole. The buffer chamber can collect the milk overflowing and reflow it, thereby preventing leakage.

Improvements in fluid volume measurement systems are disclosed for a pneumatically actuated diaphragm pump in general, and a peritoneal dialysis cycler using a pump cassette in particular. Pump fluid volume measurements are based on pressure measurements in a pump control chamber and a reference chamber in a two-chamber model, with different sections being modeled using a combination of adiabatic, isothermal and polytropic processes. Real time or instantaneous fluid flow measurements in a pump chamber of the diaphragm pump are also disclosed, in this case using a one-chamber ideal gas model and using a high speed processor to obtain and process pump control chamber pressures during fluid flow into or out of the pump chamber. Improved heater control circuitry is also disclosed, to provide added or redundant safety measures, or to reduce current leakage from a heater element during pulse width modulation control of the heater element. Improvements are also disclosed in an application of negative pressure during a drain phase in peritoneal dialysis therapy, and to control an amount of intraperitoneal fluid accumulation during the therapy. Improvements in efficiency are also disclosed in movement of fluid into and out of a two-pump cassette and a heater bag of the peritoneal dialysis cycler, and in synchronization of operation of two or more pumps in the peritoneal dialysis cycler or other fluid handling devices using a multi-pump arrangement.

The invention relates to the technical field of drainage control, in particular to an intelligent cerebrospinal fluid drainage rate and pressure cooperative control system and method. The system comprises a drainage pipeline module, a positioning adjustment module, an intelligent pump control module, a monitoring sensing module, a cooperative control module and a man-machine interaction module, and can be used for establishing a cerebrospinal fluid drainage channel and being connected with a drainage bag; a laser positioning pen fixed on the infusion rod emits a laser beam which is horizontal to a preset drainage plane and adjusts the hanging height; an infusion pump and a pump body controller drive cerebrospinal fluid to flow according to set parameters and generate flow velocity, flow and drainage time control signals, meanwhile, real-time intracranial pressure data, real-time flow and flow velocity data and physical sign data are collected, and a drainage height adjusting instruction or a pump control parameter adjusting instruction is generated; cooperative control over the drainage rate and the intracranial pressure is achieved, and system operation parameters, patient monitoring data and the drainage state are displayed. The drainage device can accurately control the drainage amount of cerebrospinal fluid.

Devices, systems, and methods for a suction valve assembly for a medical device. The suction valve assembly may include a valve well and a valve stem. The valve stem may include a first seal, a second seal, and a third seal. The valve stem may include a first opening and a second opening fluidly coupled to each other via a lumen. The valve well may include a proximal opening, a distal opening, and an intermediate opening. The valve stem is configured to translate within the valve well and adjust between a first configuration in which the third seal is a barrier between the intermediate opening and the distal opening and the lumen is fluidly isolated from the intermediate opening, and a second configuration in which the first seal is a barrier between the proximal opening and the intermediate opening and the lumen is isolated from the proximal opening.

A neurovascular catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. The side wall includes a tubular inner liner, a tie layer separated from the central lumen by the inner liner, a helical coil at least partially overlapping the tie layer, and a tubular braid. A first section of adjacent windings of the helical coil can be spaced farther apart from each other than a second section of adjacent windings of the helical coil.

Improvements in fluid volume measurement systems are disclosed for a pneumatically actuated diaphragm pump in general, and a peritoneal dialysis cycler using a pump cassette in particular. Pump fluid volume measurements are based on pressure measurements in a pump control chamber and a reference chamber in a two-chamber model, with different sections being modeled using a combination of adiabatic, isothermal and polytropic processes. Real time or instantaneous fluid flow measurements in a pump chamber of the diaphragm pump are also disclosed, in this case using a one-chamber ideal gas model and using a high speed processor to obtain and process pump control chamber pressures during fluid flow into or out of the pump chamber. Improved heater control circuitry is also disclosed, to provide added or redundant safety measures, or to reduce current leakage from a heater element during pulse width modulation control of the heater element. Improvements are also disclosed in an application of negative pressure during a drain phase in peritoneal dialysis therapy, and to control an amount of intraperitoneal fluid accumulation during the therapy. Improvements in efficiency are also disclosed in movement of fluid into and out of a two-pump cassette and a heater bag of the peritoneal dialysis cycler, and in synchronization of operation of two or more pumps in the peritoneal dialysis cycler or other fluid handling devices using a multi-pump arrangement.

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.

A nasal aspirator capable of automatically relieving pressure comprises casing, air pump component, air bag, constant pressure device and suction component; wherein, the air pump component is communicated with the air bag, and the air bag is communicated with the constant pressure device; when the air pump component works, negative pressure will be generated in the air bag; when the pressure exceeds a threshold, a pressure releasing valve will be opened to keep the air pressure inside the air bag stable; when the pressure is less than the threshold, the pressure releasing valve will be closed; and the suction component is communicated with the air bag; it further comprises a switch component, wherein the suction component defines a path for external air to enter the air bag, and the suction component is also provided with a pressure releasing channel, and the switch component can open or close the channel.

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.

An example assembly for use with a vacuum system and an esophageal positioning device esophageal positioning device includes an introducer, in which the esophageal positioning device includes a handle, a first segment, a second segment and an articulation driving mechanism. The first segment being coupled to the handle. The second segment being pivotally connected to the first segment. The articulation driving mechanism being configured to pivot the second segment about the first segment upon articulation.

The invention discloses a breast cancer postoperative drainage device in the technical field of postoperative drainage devices. The breast cancer postoperative drainage device comprises a drainage tube and a negative pressure storage mechanism. A functional carrier is arranged on a communicating path of the drainage tube and the collecting mechanism; a piston groove is formed in the functional carrier; the two sides of the piston groove symmetrically communicate with three-way pipelines, and two inlets of each three-way pipeline communicate with the two sides of the piston groove correspondingly. The two sides of the piston groove symmetrically communicate with first pipelines, one ends of the first pipelines communicate with the two sides of the piston groove correspondingly, and the other ends of the first pipelines communicate with the drainage pipe; a piston block is arranged in the piston groove in a sliding fit mode, and a first transfer channel and a second transfer channel are formed in the piston block. When the piston block reciprocates, the first transfer channel and the second transfer channel are respectively communicated with the first pipeline and the three-way pipeline in a staggered manner; a smashing mechanism is further arranged in the piston groove. According to the scheme, the countercurrent path can be actively blocked through the dynamic pressure difference, and instant recoil caused by body position changes of a patient is avoided.

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.

The invention provides a pressure-adjustable negative pressure drainage tube and a using method thereof.The pressure-adjustable negative pressure drainage tube comprises a negative pressure ball assembly, a drainage tube assembly and a negative pressure adjusting assembly, the negative pressure ball assembly comprises a negative pressure ball body and a threaded connector, a negative pressure opening is formed in the upper end of the negative pressure ball body, the threaded connector is installed at the negative pressure opening, and the drainage tube assembly comprises an upper drainage tube and a lower drainage tube; the upper end portion and the lower end portion of the negative pressure ball are further provided with an upper liquid outlet and a lower liquid inlet respectively, the upper drainage tube is installed on the upper liquid outlet, the lower drainage tube is installed on the lower liquid inlet, and the negative pressure adjusting assembly is connected with the negative pressure ball body. The drainage efficiency can be improved; the anti-backflow assembly is adopted to prevent cross infection caused by backflow of drainage liquid, the floating valve movably connected with the anti-backflow assembly is arranged in the anti-backflow connecting end, the floating valve can move in the flowing direction of the liquid, and the automatic anti-backflow purpose is achieved.

The invention relates to the technical field of medical equipment, in particular to a multifunctional pleuroperitoneal fluid drainage device and system for treating lung injury, the device comprises a drainage tube, the drainage tube is communicated with a plurality of negative pressure tubes, and the ends, away from the drainage tube, of the negative pressure tubes are communicated with a negative pressure machine used for generating negative pressure suction force; the drainage tube is communicated with a plurality of flushing tubes used for conveying flushing fluid, the outer wall of the drainage tube is further provided with a wriggling mechanism used for externally pushing the drainage tube, the wriggling mechanism comprises a fixed groove body and a pushing wheel, the drainage tube is located in the fixed groove body, and the pushing wheel abuts against the drainage tube; an opening and closing mechanism is arranged on the side, close to the drainage tube, of the fixed groove body and used for communicating the flushing tube with the drainage tube based on pressing of the pushing wheel; the drainage tube is used for reducing the risk of blockage of the drainage tube and maintaining the stability of suction pressure so as to keep continuous extraction of hydrops in the thoracic cavity of a patient.

The invention discloses a medical pulse type thrombus removal system and method, and relates to the field of medical instruments.The system comprises a catheter monitoring module used for detecting the state of a catheter in real time during thrombus removal; the state of the conduit is blocked or unblocked; one end of the catheter is located in the blood vessel, and the other end extends out of the blood vessel to be connected with the suction device; the suction device is used for generating a pulse signal and sucking thrombus in a blood vessel through the catheter; and the frequency adjusting module is respectively connected with the catheter monitoring module and the suction device and is used for dynamically adjusting the frequency of the pulse signal according to the blockage duration when the state of the catheter is blockage. By monitoring the state of the catheter in real time, when the catheter is blocked, the frequency of the pulse signal generated by the suction device is dynamically adjusted, the thrombus blocked at the catheter opening is decomposed, and then the removal efficiency of the blocked thrombus is improved.

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 invention belongs to the technical field of medical instruments, and discloses an oxygen-adding atomization inhaler for treating interstitial lung disease, which comprises a respirator assembly, an oxygen bottle, a liquid medicine box, a waste liquid collecting box, an atomization pump, a negative pressure suction pump and a monitoring mechanism, the respirator assembly is connected with the oxygen bottle; the liquid medicine box is communicated with the oxygen bottle; a medicine mist supply pipe is arranged on the respirator assembly; the respirator assembly is slidably provided with a buccal device; an atomizing pump is arranged on the liquid medicine box; the atomizing pump is connected with the medicine mist supply pipe and the mouth holding device; a negative pressure suction pump is arranged on the waste liquid collecting box; the respirator assembly is provided with a sputum suction hose; and a monitoring mechanism is fixedly arranged on the liquid medicine box. According to the device, the mouth holding device or the medicine mist supply pipe can be selected for oxygen adding atomization inhalation treatment, abnormal conditions of a patient can be found in time, data of a plurality of monitoring indexes are integrated for fusion and analysis, potential risks are found in time, and when it is monitored that the patient has dyspnea, medicine feeding is automatically stopped, oxygen conveying is started, and sputum can be cleared in time.

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.

An automatic pump-based fluid management system as described herein includes an intercostal pump, which is typically a resilient, flexible tube having an inlet and an outlet. The inlet is attached to a first tube that extends from the intercostal pump to a first region of a patient's body, such as the patient's pleural cavity. The outlet is connected to a second tube that extends from the intercostal pump to a second region of the patient's body, such as the patient's peritoneal cavity. During use, the intercostal pump is positioned between a first and second rib of the patient. The intercostal pump operates by continuously compressing and decompressing the space between the first and second ribs during the patient's breathing.

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 device, system, and method for drainage of fluid. The system may include a pump with a motor, an interface for controlling operation of the motor, and one more roller for occluding or partially occluding tubing wherein the motor is operatively connected to a one or more rollers. The system may further include tubing set for draining the fluid from a catheter with a pumping portion configured to be occluded or partially occluded by the one or more rollers to pump fluid through the tubing from a tubing inlet portion to a tubing outlet portion, the tubing set comprising tubing guide, wherein the tubing guide is configured to be removably connected to the pump and contain the pumping portion of the tubing set.