31 results about "Aspiration fluid" patented technology

To improve allele discrimination, the inventors adapted the system combining Cas13a detection sensitivity with allele-specific PCR amplification to propose CASPER (Cas13a Allele-Specific PCR Enzyme Recognition) as a new versatile, easy-to-implement, and highly sensitive method to detect low-frequency of sequence variant. CASPER enabled specific and sensitive detection of KRASG12D with low DNA input such as DNA extracted from patient's pancreatic ultrasound-guided fine-needle aspiration fluids. CASPER is easy to implement and a versatile reliable method virtually adaptable to any point mutation.

A nasal irrigation device includes a clean liquid tank, a waste liquid tank, a tubing assembly, first and second nasal inserts, a first motorized pump coupled to the clean liquid tank and the tubing assembly structured to draw liquid from the clean liquid tank and pump the liquid to the tubing assembly and to the first nasal insert with positive pressure when the first nasal insert is fixedly or removably coupled to the tubing assembly, and a second motorized pump separate from the first motorized pump and coupled to the waste liquid tank and the tubing assembly structured to draw waste liquid from the tubing assembly and the second nasal insert with negative pressure when the second nasal insert is fixedly or removably coupled to the tubing assembly and provide the waste liquid to the waste liquid tank.

This utility model belongs to the field of medical device technology, and particularly relates to a cytokine flow cytometry detection kit, including a reagent bottle and a storage box. The reagent bottle is snapped into a limiting tube. A partition plate is snapped into the inside of the storage box, and a bottle holder slot is opened on the partition plate. The bottom of the reagent bottle is inserted into the bottle holder slot. A limiting cardboard is movably set on the inner wall of the storage box. The bottom of the partition plate abuts against the bottom of the inner wall of the storage box, and the top abuts against the bottom of the limiting cardboard. In this utility model, the limiting tube can limit the pipette tip, preventing the pipette tip from falling into the reagent bottle during the process of using the pipette to draw liquid, which would prevent the operator from being unable to quickly remove the tip. The limiting cardboard can limit the top of the partition plate, preventing the partition plate from being pulled out with the bottle when the operator pulls the reagent bottle out of the bottle holder slot.

A vent valve, and a vent valve assembly, for a liquid dispensing container, employ a vent disc having small open vent holes in cooperation with an overlying thin flexible flap that covers and closes the vent holes to limit liquid pressure on the holes when the container is upright, yet require little suction pressure to move the flap to draw liquid or vent through the holes. The vent valve can be used in a bottom cap that is attachable to the bottom open end of the container. The vent valve assembly includes such a bottom cap, a sealing member for sealing the bottom cap to the container, and a vent valve. The vent valve and / or bottom cap have an elevated vent disc and a top portion having the thin flexible flap.

In some examples, a medical aspiration system is configured to control medical aspiration based on a cardiac cycle of a patient. For example, a medical aspiration system can comprise a suction source configured to apply a suction force to a catheter to remove fluid from the catheter, and control circuitry configured to control the suction force applied by the suction source to the catheter based on a cardiac cycle of a patient.

A system for automated biopsy analysis is provided. The system includes a biopsy needle holder and delivery system configured to secure a biopsy needle, a sample transfer system configured to transfer a biopsy sample from the biopsy needle to a well of a multi-well plate, a liquid handling system configured to dispense and aspirate liquid to and from the well of the multi-well plate, an optical measurement system configured to measure a fluorescent signal from the well, and a control system configured to control operation of the biopsy needle holder and delivery system, the sample transfer system, the liquid handling system, and the optical measurement system. The system enables automated processing and analysis of biopsy samples, improving efficiency and reproducibility of metabolic rate determination and other tissue analysis.

Drainage device, comprising a vacuum pump (1), a suction line (2) connected to this vacuum pump (1), a gas-tight liquid collection container (6) which is connected to the suction line (2) and serves to reliably maintain the negative pressure and to collect extracted liquid, a suction pipe (5) which is connected to a rear area of ​​a hollow cover element (3) which is open at its front and which opens into the liquid collection container (6) at its end facing away from the cover element (3), characterized by the fact that the cover element (3) has a sponge pad (4) at its front opening, wherein the sponge pad (4) absorbs fluid from the wound area and distributes a negative pressure evenly, wherein the negative pressure generated by the vacuum pump (1) via the suction line (2) first reaches the fluid collection container (6) and from there is directed via the suction tube (5) to the cover element (3) and further to the sponge pad (4), while the fluid absorbed from the wound area is transported via the sponge pad (4) and through the suction tube (5) into the fluid collection container (6).

Fluid management systems are disclosed that include software-controlled, electro-mechanical devices used in combination with single-use or multi-use tubing sets. Functions of the fluid management systems can include fluid pressurization, fluid warming, fluid deficit monitoring (including flow-based and weight-based), suction, fluid collection, and fluid evacuation (including indirect-to-drain and direct-to-drain options). The systems can be configured based on the surgical environment (e.g., operating room or physician office) as well as other user needs and / or preferences.

The application discloses a kind of negative pressure suction gun, manual negative pressure suction method, it is related to biomedical engineering technical field, the gun handle of negative pressure suction gun is reciprocated and opened and closed to drive suction pumping section to reciprocate in negative pressure sedimentation cavity Negative pressure suction and extrusion pumping, negative pressure sedimentation cavity can pass through liquid suction pipe one-way liquid suction when negative pressure suction, negative pressure sedimentation cavity can be one-way liquid delivery to the liquid storage part when extrusion pumping, so as to be used for suction liquid and soft solid tissue in liquid by setting negative pressure sedimentation cavity, then by adjusting increase negative pressure suction force, the viscosity of solid tissue that can be sucked is also greater, so that the negative pressure suction gun of the application can not only be used for endometrial gynecological field liquid suction and solid tissue sampling, but also can be used for closed narrow space tumor biopsy, brain tissue and other solid-liquid components suction, during suction process, by rotating liquid suction pipe, the inlet slope of liquid suction pipe is realized 360 degree rotation, to avoid suction dead angle.

The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to a special-shaped multi-cavity visual bending-adjustable multi-parameter monitoring cavity device. The device is composed of an operation unit, a bundling pipe and a bending adjusting unit, the bundling pipe is inserted into a cavity channel for cleaning, suction, endoscopy and the like, the bending adjusting unit can check all angles in the cavity channel, and the operation unit controls the turning angle of the bending adjusting unit and liquid suction of the bundling pipe; the functions of the operation unit are optimized and enhanced, the clinical application range of the device is expanded, the device is complete in function and convenient and fast to operate, a clear and visual diagnosis and treatment means for lesions in the cavity is provided for medical staff, the scientificity, safety, convenience, high efficiency, intelligent characteristics and operation accuracy of the device remarkably improve the medical work efficiency, and the clinical application range of the device is widened. And a more accurate and safer diagnosis and treatment service is provided for the patient.

The application discloses a flushing and sealing pipe device in the technical field of medical auxiliary devices, which comprises a liquid supply component, a driving pump and a hose. The liquid supply component is installed on the pump shell of the driving pump, which improves the integration of the flushing and sealing pipe device and makes the flushing and sealing pipe device convenient to store or carry. The two ends of the hose are respectively connected with the liquid supply component and the intravenous catheter, and the middle part of the hose is arranged in the interior of the pump shell, so that the hose does not need to be disconnected with the intravenous catheter for multiple times for sucking liquid, the number of interface exposure is significantly reduced, and the risk of intravenous catheter pollution is significantly reduced. The rotary pump head in the interior of the pump shell extrudes the hose, so that the liquid in the liquid supply component flows to the intravenous catheter to flush and seal the pipe. The steps of sucking, disinfecting, exhausting, bolus injection and the like are omitted, the flushing and sealing pipe operation is more convenient and fast, the artificial operation time is reduced, and the threshold of the flushing and sealing pipe operation is lowered.

An ophthalmic surgical system includes: a first position sensor for detecting a first deflection position of the first elastic partition element, a second position sensor for detecting a second deflection position of the second elastic partition element, a first pressure sensor for detecting a first pressure in a first drive fluid line, a second pressure sensor for detecting a second pressure at an outlet of a first pump chamber and / or a third pressure sensor for detecting a third pressure at an inlet of a second pump chamber, a fourth pressure sensor for detecting a fourth pressure in the second drive fluid line, a direct connection line configured to connect the irrigation fluid line to the aspiration fluid line, a processing unit for processing the first pressure, the second pressure and / or the third pressure, the fourth pressure, in each case dependent on the first and the second deflection position.

The invention relates to an ophthalmic surgical device (1) comprising: - an irrigation fluid line (4), - an aspiration fluid line (10), - at least one first fluid pump (5), - at least one second fluid pump (11), - a first flow sensor (13) coupled to the irrigation fluid line (4) for detecting a flow of the irrigation fluid in the irrigation fluid line (4), which provides a first flow signal (27), - a second flow sensor (14) coupled to the aspiration fluid line (10) for detecting a flow of the aspiration fluid in the aspiration fluid line (10), which provides a second flow signal (28), - a control unit (26) coupled with the flow sensors (13, 14) and the fluid pumps (5, 11), which is configured to provide at least a first control signal (22) for the first fluid pump (5) and a second control signal (29) for the second fluid pump (11), wherein the control unit (26) is configured to compare the first flow signal (27) with the second flow signal (28) and to provide at least the second control signal (29) at least temporarily depending on the comparison.

The present invention provides a system for automated biopsy analysis. The system includes a biopsy needle holder and delivery system configured to secure a biopsy needle, a sample transfer system configured to transfer a biopsy sample from the biopsy needle to a well of a multi-well plate, a liquid handling system configured to dispense and aspirate liquids to and from the well of the multi-well plate, an optical measurement system configured to measure fluorescent signals from the well, and a control system configured to control operations of the biopsy needle holder and delivery system, the sample transfer system, the liquid handling system, and the optical measurement system. The system enables automated processing and analysis of biopsy samples, improving efficiency and reproducibility in metabolic rate determination and other tissue analyses.

An ophthalmosurgical appliance includes an irrigation fluid line through which irrigation fluid can flow from an irrigation fluid container to an ophthalmosurgical handpiece for phacoemulsification, a first fluid pump configured to convey the irrigation fluid to the handpiece, a first volumetric flow determination device configured to determine a first volumetric flow, an aspiration fluid line, a second fluid pump configured to convey aspiration fluid to the collecting container, a second volumetric flow determination device configured to determine a second volumetric flow, a difference element configured to form a difference from the first volumetric flow and the second volumetric flow to form a differential volumetric flow signal, and a control device configured to determine, from the differential volumetric flow signal and the irrigation fluid setpoint pressure signal, a signal for an irrigation fluid control pressure to supply this signal at an output of the control device to the first fluid pump.

The present invention relates to an ophthalmic surgical system and a method for operating the same, the system comprising: a first fluid pump having a first pump chamber, a first resilient partition element, and a first drive chamber; a second fluid pump having a second pump chamber, a second elastic partition element, and a second drive chamber; a lavage fluid line and a suction fluid line; a first drive fluid line for guiding a first drive fluid to the first drive chamber; a second drive fluid line for guiding a second drive fluid to the second drive chamber; a first position sensor for detecting a first deflection position of the first elastic partition element; a second position sensor for detecting a second deflected position of the second elastic partition element; a first pressure sensor for detecting a first pressure in the first drive fluid line; a second pressure sensor for detecting a second pressure at the outlet of the first pump chamber; and / or a third pressure sensor for detecting a third pressure at the inlet of the second pump chamber; a fourth pressure sensor for detecting a fourth pressure in the second driving fluid line; a direct connection line configured to connect the irrigation fluid line to the suction fluid line; and a processing unit configured to process the first pressure, the second pressure and / or the third pressure, the fourth pressure in each case in a manner dependent on the first deflection position and the second deflection position.

The invention relates to the technical field of medical equipment, and provides an integrated gastric lavage device based on physiological information feedback, comprising: a flexible catheter integrated with multiple sensors: a miniature multi-section pressure sensor is integrated at the front end of the catheter to monitor the pressure in the stomach in real time and ensure that the pressure does not exceed a safety threshold; a near infrared spectrum sensor and a turbidity sensor are embedded in the side wall of the catheter and are respectively used for detecting the hemoglobin content and the turbidity in suction liquid; the AI visual guidance module comprises a miniature camera arranged in the head of the catheter and is used for dynamically adjusting the intubation path in combination with a pharyngeal anatomical feature recognition algorithm and responding to swallowing actions of a patient to optimize the direction of the catheter in real time. Painless intubation is realized through AI visual guidance, and discomfort and injury risks of patients are reduced; the pressure in the stomach is monitored in real time through multiple sensors, and the flow speed is intelligently regulated to guarantee safety; the closed-loop system accurately controls water quantity, ensures liquid balance, and improves safety and effectiveness of gastric lavage treatment in all directions.

The invention relates to an ophthalmic surgical apparatus (1) comprising: - an irrigation fluid line (4), - an aspiration fluid line (10), - at least one first fluid pump (5), - at least one second fluid pump (11), - a first flow sensor (13), coupled to the irrigation fluid line (4), for detecting a flow of irrigation fluid in the irrigation fluid line (4), the first flow sensor providing a first flow signal (27), - a second flow sensor (14), coupled to the aspiration fluid line (10), for detecting a flow of aspiration fluid in the aspiration fluid line (10), the second flow sensor providing a second flow signal (28), and - a control unit (26) which is coupled to the flow sensors (13, 14) and to the fluid pumps (5, 11) and is designed to provide at least one first control signal (22) for the first fluid pump (5) and one second control signal (29) for the second fluid pump (11), wherein the control unit (26) is designed to compare the first flow signal (27) with the second flow signal (28) and to provide at least the second control signal (29) at least temporarily depending on the comparison.

To facilitate suction of a fluid object.SOLUTION: A fluid object can be sucked from a suction nozzle 11 of a suction passage part 10 connected to a tank 20 by an ejector 60 for evacuating the inside of the tank 20. A bottle 30 is connected through a tube 40 to a suction hose 12 that is connected to the suction nozzle 11. The bottle 30 stores a cleaning liquid for improving the fluidity of the fluid object. When the suction of the fluid object is started and the pressure in the suction hose 12 is lowered, the cleaning liquid in the bottle 30 flows into the suction hose 12 through the tube 40 and mixes with the fluid object in the suction hose 12. An inflow of the cleaning liquid changes according to the pressure change in the suction hose 12.SELECTED DRAWING: Figure 1

A system that selectively controls temperature within a device such as a neck / head wrap is disclosed. The system can include a pump system having a reservoir that holds a liquid, an element that regulates temperature of the liquid within the reservoir; a pump that draws the liquid from the reservoir; and a distribution manifold attached to the pump hose that receives and distributes the liquid to at least two devices (e.g., cervical collars). The system is also equipped to be selectively monitored, for example, via a smartphone, tablet or computer.

This invention provides a liquid receiving device and a liquid ejection device, capable of suppressing the inability of a suction member to suction liquid ejected from a liquid ejection part. The liquid receiving part is capable of receiving liquid ejected from a liquid ejection part through an opening; a first discharge path is capable of discharging liquid from the liquid receiving part; and a second discharge path is capable of discharging liquid from the liquid receiving part. The liquid receiving part includes: a suction member disposed within the liquid receiving part and capable of suctioning liquid; a first connecting part having a first outlet opening within the liquid receiving part and communicating with the first discharge path; and a second connecting part having a second outlet opening within the liquid receiving part and communicating with the second discharge path. The first connecting part is disposed at a position where the first outlet contacts the suction member, and the second connecting part is disposed at a position where the second outlet does not contact the suction member.

The invention discloses pipe flushing and sealing equipment in the technical field of medical auxiliary instruments. The pipe flushing and sealing equipment comprises a liquid supply component, a driving pump and a hose. And the liquid supply component is mounted on the pump shell of the driving pump, so that the integration level of the flushing and sealing pipe equipment is improved, and the flushing and sealing pipe equipment is convenient to store or carry. The two ends of the hose are communicated with the liquid supply component and the venous catheter respectively, the middle of the hose penetrates into the pump shell, the hose does not need to be disconnected from the venous catheter for sucking liquid repeatedly, the number of exposure times of a connector is remarkably reduced, and the risk of pollution to the venous catheter is remarkably reduced. The rotary pump head in the pump shell extrudes the hose, so that liquid in the liquid supply component flows to the venous catheter, and the catheter is flushed and sealed. The links of suction, disinfection, exhaust, injection and the like are omitted, so that the tube flushing and sealing operation is simpler, more convenient and quicker, the manual operation time is shortened, and the threshold of the tube flushing and sealing operation is lowered.

Provided is a catheter simulator capable of reproducing, in a heart model held in a liquid in a container, a blood flow and cardiac pulsations in a living body. The catheter simulator comprises: a container 10 filled with a liquid; an elastic heart model 100 which is installed in the container 10 in a state of being filled with the liquid and in which a ventricle and a large blood vessel continuous with the ventricle are provided; and a pulsation pump 50 which is connected to the large blood vessel of the heart model 100 or is connected a space continuous with the large blood vessel, and which generates negative pressure in the ventricle by suctioning the liquid.

This invention discloses a device for applying ointment to lupus erythematosus lesions, including a connecting rod. A cleaning component is located at one end of the connecting rod. The cleaning component includes a fixed plate fixedly connected to one end of the connecting rod, a nozzle on one side of the fixed plate, and a placement groove on the side wall of the connecting rod. A liquid tank is placed in the placement groove. The input end of the nozzle is connected to the output end of a transfer pipe connected to one end of the liquid tank. The nozzle can switch between multiple water output modes. A fixing component is located between the liquid tank and the connecting rod. The cleaning component in this invention can pre-clean the patient's lesions with warm water before applying ointment, thereby reducing irritation to the lesion during ointment application. When using the cleaning component, clean warm water is first poured into the liquid tank, and then the liquid tank is placed into the placement groove in the connecting rod. At this time, a drive pump located in the connecting rod can draw warm water from the liquid tank and simultaneously pump the water into the nozzle located on one side of the fixed plate.

The application relates to the technical field of hysteroscopes, and discloses a hysteroscope with integrated suction and liquid pipelines, which comprises an operating handle, an operating component arranged on one side of the operating handle, an integrated component arranged in the interior of the operating handle, and a dismounting component arranged on the operating component. The hysteroscope with integrated suction and liquid pipelines is provided with an in-out liquid channel in the insertion part, and then the integrated component is used to quickly switch the in-out liquid channel to be used for liquid inlet or liquid suction, so that the liquid inlet and the liquid outlet are combined into one in-out liquid channel, the structure layout of the insertion part of the hysteroscope is greatly simplified, the number and complexity of the pipelines are reduced through the innovative design, the diameter of the insertion part is effectively reduced, the thinner insertion part can reduce the discomfort of a patient in the examination and treatment process, and the comfort and compliance of operation are improved.

1. The name of the design product: injection device for swallowing balloon dilation training. 2. The use of the design product: for injecting or pumping liquid in the swallowing balloon dilation training rehabilitation treatment for patients with swallowing dysfunction. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

The pathological sampling device comprises a connecting frame, a sampling barrel is arranged on the connecting frame, a needle head is arranged at the lower end of the sampling barrel, a support is arranged on the outer side of the connecting frame, an electric telescopic rod and a guide rod are arranged at the two ends of the support respectively, and a sliding groove is formed in the connecting frame. An operating rod is arranged in the sliding groove, a sampling pipe is arranged at the edge of the lower end of the sampling barrel, a connecting pipe is arranged at the top of the sampling barrel, a suction pipe is connected to the connecting pipe, and a suction assembly is arranged at the other end of the suction pipe; through cooperation of an electric telescopic rod, a guide rod and a support, the position of the sampling device is conveniently adjusted and kept stable, accurate positioning and fixing are achieved, then through cooperation of a suction plate, a suction rod and a driving plate, a foot treads a pedal to drive an L-shaped rod, the driving plate and the suction rod to move, the suction plate effectively changes the internal space volume in a suction cylinder, and the sampling device is convenient to use. Efficient liquid suction is achieved, and the sampling requirement is met.

An ophthalmic surgical handpiece comprising: a hollow needle; an irrigation fluid pump having a first port to which a first fluid line is connected and a second port to which a second fluid line is connected, the second fluid line having a distal end arranged to allow irrigation fluid to flow into a distal region of the hollow needle; an aspiration fluid pump configured to deliver aspiration fluid, the aspiration fluid pump being connected to a third fluid line, the third fluid line being arranged to receive aspiration fluid delivered with the hollow needle, and the aspiration fluid pump being connected to a fourth fluid line, the fourth fluid line being arranged to discharge aspiration fluid; and a drive device configured to drive the lavage fluid pump, the aspiration fluid pump, and the hollow needle in a predetermined direction.

An ophthalmic surgical handpiece includes a hollow needle, an irrigation fluid pump having a first port as a fluid inlet and a second port as a fluid outlet, an aspiration fluid pump configured to deliver aspiration fluid, the aspiration fluid pump being connected to a fluid line which is arranged to receive aspiration fluid conveyed with the hollow needle, and to a fluid line which is arranged to discharge the aspiration fluid at its distal end into a collection container, and a drive device including a drive shaft and a gear, wherein the drive shaft is configured to drive the irrigation fluid pump and the aspiration fluid pump together with a drive apparatus which is configured to be coupled to the drive device, and wherein the drive shaft is configured to drive the hollow needle in a predetermined direction with the gear.

The invention relates to the technical field of hysteroscopes, and discloses a liquid suction pipeline integrated hysteroscope, which comprises an operation handle, an operation part arranged on one side of the operation handle, an integration part arranged in the operation handle, and a disassembly and assembly part arranged on the operation part. According to the hysteroscope integrated with the liquid suction pipeline, the liquid inlet and outlet channel is formed in the insertion part, then the liquid inlet and outlet channel is rapidly switched to be used for liquid inlet or liquid suction through the integration component, liquid inlet and liquid outlet are integrated into one liquid inlet and outlet channel, and the structural layout of the insertion part of the hysteroscope is greatly simplified; according to the innovative design, the number and complexity of pipelines are reduced, the diameter of the insertion part is effectively reduced, the thinner insertion part can reduce discomfort of a patient in the examination and treatment process, and the comfort and compliance of operation are improved.