28 results about "Fluid aspiration" patented technology

A quantitative dispensing syringe is provided. The quantitative dispensing syringe comprises two pressure blocks (1), an outer sleeve (2), and a spindle (3). By providing the two pressure blocks (1) on the outer sleeve (2) to limit the snap fit to the spindle (3), the volume of liquid flowing into the outer sleeve (2) can be controlled during liquid aspiration, and the volume of the first level of liquid to be dispensed can be controlled during liquid dispensing, thereby achieving the objective of controlling the dispensing volume and avoiding the problem of medical accidents caused by excessive single dispensing volumes. The position of the spindle (3) relative to the pressure blocks (1) can then be adjusted so that the spindle (3) is pushed further into the outer sleeve (2) so that the total amount of liquid dispensed can be effectively determined by dispensing the remaining liquid to define the volume of the second level of dispensed liquid.

The application provides a lavage catheter, which comprises a handle assembly and a catheter assembly. The handle assembly comprises a shell and a movable assembly. The movable assembly is movably arranged in the shell, so that the movable assembly comprises a first state and a second state relative to the shell. The catheter assembly comprises a catheter tube and a pop-up unit. The catheter tube is provided with an opening at a distal end for communication with the outside. The pop-up unit comprises a connecting wire and a pop-up part. The proximal end of the connecting wire is connected to the movable assembly, and the distal end of the connecting wire is connected to the pop-up part. When the movable assembly is in the first state, the connecting wire is in tension, and the pop-up part is received in the catheter tube. When the movable assembly is in the second state, the connecting wire is relaxed, and the pop-up part is popped out of the opening. The lavage catheter provided by the application can make the pop-up part pop out of the opening, so as to keep a certain space gap between the sub-segment bronchial wall and the opening, and prevent the sub-segment bronchial wall from closely adhering to the catheter tube under negative pressure to block the opening and cause difficulty in pumping the lavage liquid.

An aspiration catheter may include inner sheath configured to receive fluid proximate to a distal end of the inner sheath and provide a conduit for movement of the fluid to a proximal end of the inner sheath tube; an outer sheath enclosing a portion of the tube; a closure located about the distal end of the outer sheath; a self-closing aperture passing through a closure of the outer sheath and configured to selectively open and close a path from an exterior space to the interior of the outer sheath; and one or more radial ports located about the distal end of the inner sheath configured to receive fluid.

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 a nasal cavity suction device which reliably prevents backflow of nasal mucus in a bottle into a suction tube. [Solution] The nasal suction device of the present invention comprises an air extraction part for connecting to an air extraction device, a storage bottle, a cover, and a partition. The storage bottle is used to store nasal mucus. The cover is combined with the storage bottle to jointly define an interior space. The cover has a liquid extraction tube inserted into the interior space. One end of the liquid extraction tube is connected to the cover and has a liquid inlet connected to the outside at the connection point, and the other end extends away from the cover and has a liquid outlet, defining a gas flow path between the air extraction part and the liquid outlet. The partition is located within the interior space and partially blocks the gas flow path adjacent to the air extraction part on one side of the liquid extraction tube. The partition is located on the other side of the liquid extraction tube and defines an opening for gas flow by leaving the portion of the gas flow path away from the air extraction part unblocked by the partition.

This invention discloses a hyperthermic perfusion device, relating to the field of medical devices. It provides a hyperthermic perfusion device with a simpler tubing system, facilitating shorter preparation time for hyperthermic perfusion chemotherapy. The hyperthermic perfusion device includes a main unit and a liquid circulator; the liquid circulator includes a rigid liquid container, a suction tube, a return container, an output tube, a return tube, and two dispensing pumps; the dispensing pumps are vertically positioned at the upper end of the rigid liquid container, and include an inlet check valve, a drain check valve, a collar, and a liquid aspirator with a piston rod. The inlet and drain check valves communicate with the internal space of the liquid aspirator, and the collar is connected to the piston rod; the suction tube is connected to both inlet check valves and extends to the lower part of the rigid liquid container; the return container is located at the upper end of the rigid liquid container and has a filter screen; the output tube is connected to the rigid liquid container and connected to the two drain check valves via tubing; the return tube is connected to the return container; the main unit can heat the rigid liquid container and drive the dispensing pumps.

The utility model discloses a suction inlet device with a collection cabinet, and relates to the technical field of ship construction. The device comprises a suction port device, a suction pump and a suction valve, the suction valve is connected with a suction port of the suction pump through a pipeline, and the suction port device is connected with one end of the suction valve through a pipeline; the suction port device comprises a collection cabinet body, a closed cavity is formed in the collection cabinet body, and a suction port is formed in the closed cavity; the suction pump, the suction valve, the closed cavity, the suction inlet, the first inflow flange and the second inflow flange are arranged, liquid at the two lowest points of the bottom of the liquid cabin can be fully sucked, the situation that the liquid in the cabin is not sucked thoroughly is avoided, meanwhile, a sewage well does not need to be assembled at the bottom of the liquid cabin, and the space of the bottom of the liquid cabin is saved; and by arranging a ventilation valve, a release plug and an observation mirror, the closed cavity can be conveniently cleaned and maintained, cleaning and maintenance operation is convenient, and meanwhile next-time use is facilitated.

An automatic analyzer includes an installation plate on which a system reagent container is installed, a liquid aspiration unit that aspirates a reagent from the system reagent container, a support unit to which the liquid aspiration unit is coupled and which can be moved between a reagent container exchange position and a reagent aspiration position, and a lift mechanism that allows the support unit to perform a lift operation. The support unit of the liquid aspiration unit is raised to the reagent container exchange position by the lift mechanism when a first condition is satisfied, and the support unit of the liquid aspiration unit is lowered to the reagent aspiration position by the lift mechanism when a second condition is satisfied.

The present application relates to the technical field of medical catheter, provide a kind of for intracranial catheter and catheter assembly, comprising: first tube, first joint, sealing element and suction joint;The first tube has first end and second end respectively at both ends;The first tube has operating channel;The operating channel extends from the first end to the second end;The first joint is fixed on the first end;The first joint has working port;The working port is communicated with the operating channel of the first end;The sealing element detachably seals the working port;The suction joint is arranged on the first joint;The suction joint has suction channel;The suction channel is communicated with the operating channel. Operating channel is used as the channel of surgical tool, and operating channel is also used as the channel of liquid suction, greatly integrates the surgical function of catheter, avoids the need to change different catheters in the process of operation to achieve treatment and liquid suction respectively.

A medical fluid suction pump arrangement, characterized in that it comprises: a support tube body, wherein a drainage channel is provided in the support tube body, the drainage channel extending from the distal section of the support tube body to the proximal section of the support tube body; an impeller, wherein the impeller is provided on the outside at the distal end of the support tube body; a gear mechanism comprising a gear shaft and a bearing, wherein the bearing is located in the support tube body, the gear shaft extends axially through the support tube body and projects out of this support tube body at its distal end, the gear shaft is drivenly connected to the impeller, and the gear shaft is rotatably mounted in the support tube body via the bearing; the bearing is located along the path of the drainage channel, wherein the bearing is provided with an axially through-hole or slot that is connected to the drainage channel.

The present application relates to a self-damping octagonal bed and a multi-station combined machine tool, the self-damping octagonal bed comprises a plurality of damping cavities arranged around the vertical direction, an inlet and outlet liquid passage communicated with one of the damping cavities, and a plurality of flow guide passages respectively communicated with two adjacent damping cavities; the machine tool comprises a base, the above-mentioned bed arranged on the base, a liquid suction pump and a plurality of power heads arranged on the bed, a liquid delivery pipe inserted into the inlet and outlet liquid passage and communicated with the output end of the liquid suction pump, a detection control unit electrically connected with the liquid suction pump, and a rotary worktable rotatably arranged on the bed. The bed of the present application has the advantages of facilitating the installation of power heads, automatically avoiding resonance between the power heads, and reducing the use cost. The machine tool of the present application has the advantage of facilitating the fine adjustment of the vibration amplitude of each power head.

A floating liquid intake for a liquid suction removal system, the liquid intake comprising housing defining an internal cavity. The housing has a hollow and buoyant annular body, an upper cover and a lower cover. The internal cavity is formed between the upper and lower covers. A substantially annular inlet is formed in the annular body for ingress of liquid into the cavity. The annular body has a buoyancy sufficient for the liquid intake to float in a liquid with the annular inlet submerged below the surface of the liquid in which the liquid intake is floating. A pipe extends into the cavity and the pipe includes an inlet that in use is open below the surface of the liquid within the cavity. The pipe extends outside of the cavity for connection to a liquid suction removal system.

The invention relates to the field of gynecological examination, in particular to a multifunctional sampler for gynecological examination. According to the multifunctional gynecological examination sampler, a bendable shell is composed of a main hard shell, a soft sleeve shell and an auxiliary hard shell, a main rotating cylinder and an auxiliary rotating cylinder are connected in the bendable shell through a universal coupling, the shell can be bent to be attached to the physiological structure of the vagina, and medical staff can conveniently place a sampling brush into the shell to sample vaginal inner wall tissue; in addition, the inner sliding block can be pushed through release of the compression spring, then the sampling tube is driven to further enter the uterus, effusion suction and sampling are carried out, and damage to the vagina and the inner wall of the uterus is effectively reduced through the design. The multifunctional gynecological examination sampler overcomes the technical defects that when an existing sampling instrument is inserted into the vagina, the insertion resistance is large, positioning is not accurate, and tissue is damaged due to the fact that the rigidity is too high or the diameter is too large.

An atomizer (1) and an aerosol generation device. The atomizer (1) comprises: a housing (14), inside of which a liquid storage cavity (15) is defined, the liquid storage cavity (15) being configured to store a liquid substrate; a mouthpiece (141); an atomization assembly (11), which is configured to atomize the liquid substrate to generate an aerosol; a support assembly (13), which is configured to support the atomization assembly (11), the support assembly (13) comprising an air intake channel; an airflow channel, which provides a path for airflow communication between the air intake channel and the mouthpiece (141); and a first liquid suction element (12), which surrounds the airflow channel, a partial boundary of the liquid storage cavity (15) being defined by an outer side surface of the first liquid suction element (12). The atomization assembly (11) is arranged in the airflow channel, and the atomization assembly (11) comprises a second liquid suction element (111) and a heat generating assembly (112) combined with the second liquid suction element (111); and the first liquid suction element (12) is configured to suction the liquid substrate and transfer same to the second liquid suction element (111). Not only can the first liquid suction element (12) be effectively prevented from sucking too many liquid substrates, but also the liquid substrate is prevented from overflowing and leaking from the liquid storage cavity (15).

The utility model aims to provide oral concentrated solvent dissolving equipment which comprises a tank body, a partition plate is arranged in the tank body and divides an inner cavity of the tank body into an upper cavity body and a lower cavity body, and a through hole is formed in the partition plate and enables the upper cavity body to be communicated with the lower cavity body; a pipeline for communicating the upper cavity with the lower cavity is arranged on one side of the tank body, and a pump is arranged on the pipeline. The utility model relates to the technical field of liquid medicine preparation equipment, and adopts a step-by-step dissolution mode to primarily dissolve medicine powder in an upper cavity by using a small amount of hot purified water to form a concentrated solution. Then, the concentrated solution is put into the lower cavity to be mixed and stirred with a large amount of purified water, and the stirred liquid in the lower cavity is continuously sucked to the upper cavity, so that the concentrated solution flows in the equipment through a pipeline, is uniformly distributed through a partition plate and drips and flows back through a through pipe; the contact between solute and solvent is greatly increased through the multi-form flow path, and the overall dissolution rate is increased.

The embodiment of the invention provides a liquid feeding device, a washing device, a remaining amount detection method and a liquid feeding method, and relates to the field of washing, the liquid feeding device comprises a liquid storage part, a liquid storage cavity is formed in the liquid storage part, and the liquid storage cavity is used for containing liquid to be fed; the suction pipe is located in the liquid storage cavity and provided with a third end and a fourth end which are opposite, the suction pipe extends from the third end to the bottom face of the liquid storage cavity to form the fourth end, and a detection through hole is formed in the side face, close to the fourth end, of the suction pipe; the liquid pumping pipe is located outside the liquid storage part; the third end of the suction pipe is communicated with the liquid suction pipe; the bubble sensor is arranged on the liquid extraction pipe; according to the embodiment of the invention, the detection through hole is formed in the suction pipe, and the bubble sensor is arranged on the liquid suction pipe communicated with the suction pipe to detect the air sucked into the detection through hole, so that a user can be prompted of liquid shortage more timely.

An air measurement method of performing measurement by injecting air into a gas chromatograph includes a liquid suction step of sucking a liquid that does not interfere with detection of a predetermined component in air by a gas chromatograph into a syringe to fill the syringe with the liquid, an air suction step of sucking a predetermined amount of air into the syringe after the liquid suction step, an injection step of injecting the predetermined amount of air sucked into the syringe into the gas chromatograph after the air suction step, and a recording step of acquiring a detection signal for the air injected into the gas chromatograph in the injection step and recording an acquired detection signal in association with the air injection amount into the gas chromatograph.

The utility model discloses a pressing pump with multiple pressing stabilizing effects, which belongs to the technical field of infusion pumps and is characterized in that a pressing cavity is formed inside a pump body, a liquid suction pipe is formed at the bottom of the pump body, a glass ball is arranged in the liquid suction pipe, a suction pipe is connected to the bottom of the liquid suction pipe in a clamping manner, and a pump cover is connected to the top of the pump body in a clamping manner. The lock cover is installed in the pressing cavity, a sliding cavity is formed in the lock cover, an annular flange is formed on the inner side wall of the sliding cavity, the main column is slidably connected to the interior of the sliding cavity, the bottom of the main column is connected with the auxiliary column in a clamped mode, the button is connected to the top of the main column in a clamped mode, and the spring is arranged in the sliding cavity. The piston is slidably connected to the interior of the pressing cavity, the multiple limiting ribs are arranged on the inner side wall of the sliding cavity, and the first limiting flange is arranged on the inner wall, making contact with the main column, of the annular flange. The smoothness of the pressing hand feeling is improved, the springback delay is reduced, liquid suction is more sufficient, and the liquid pumping amount is kept accurate for a long time.

This invention relates to the field of medical device technology, and particularly to a centrifuge adapted for the preparation of centrifuge tubes for clinical cell mitochondrial extraction. The centrifuge includes: a centrifuge body, a centrifuge lid hinged to one side of the centrifuge body, a platelet detection device fixedly disposed on the side of the centrifuge lid away from the centrifuge body, and a liquid aspiration device rotatably disposed on the side of the centrifuge lid near the centrifuge body. A lid locking mechanism is fixedly disposed on the side of the centrifuge body near the centrifuge lid, and a locking hook is fixedly disposed on the side of the centrifuge lid near the centrifuge body, the locking hook matching the lid locking mechanism. This invention avoids the variability caused by human operation during multiple supernatant extractions, reduces the possibility of contamination from human operation, ensures the sterility and component stability of the extraction process, and greatly improves the efficiency and success rate of mitochondrial extraction.

A micro-syringe for inserting into a sample matrix. The micro-syringe includes a micro-syringe body having an orifice at an insertion end; and a plunger at least partially coated with a solid-phase micro-extraction (SPME) coating. The plunger is longitudinally movable between an internal position and an extended position. When the syringe is inserted into the sample matrix, the extraction phase is shielded from the sample matrix by the micro-syringe body when the plunger is in the internal position, and at least a portion of the extraction phase extends past the orifice and is exposed to the sample matrix when the plunger is in the extended position. The plunger is sized to fit the internal diameter of the micro-syringe body to draw a liquid into the micro-syringe body when the plunger is moved from the extended position to the internal position.

The utility model discloses a kind of residual liquid extraction devices for gas cylinder inspection, it is related to gas cylinder inspection technical field, including sleeve frame, the movable connecting pipe is installed in sleeve frame inside.The utility model is equipped with sleeve frame, movable connecting pipe, control handle, double pipe, connecting pipe, upper end sealing frame, lower end sealing frame, threaded rod, movable sleeve and liquid suction pump, can be adjusted to movable connecting pipe by the control handle installed in device, can keep the sealing property with gas cylinder interface after adjustment, double pipe plays the role of connection and shunt in device, it is connected with movable connecting pipe, simultaneously and is closely connected with connecting pipe, forms the passage of residual liquid extraction, these two sealing frames are comprehensively shielded from top to bottom two directions to connecting position, like two solid barriers, the gap that possibly appears is completely closed, maximum limit reduces the leakage of residual liquid in transmission process, guarantees the sealing performance of entire extraction passage.

The utility model relates to a system for flushing and removing blood clots and retention in digestive tracts, the system comprises a catheter device, a liquid extraction device and an endoscope device, the catheter device comprises a catheter assembly and an infusion connector assembly, and the catheter assembly comprises a main channel and an infusion channel. The infusion connector assembly is connected to the infusion channel, and one of the liquid pumping device and the endoscope device is connected to the main channel. According to the catheter assembly, the infusion channel and the main channel are independently arranged, flushing fluid can be accurately conveyed to the observation direction of the endoscope device through the infusion channel, and the observation definition and the consistency of the flushing angle and the observation angle are improved. The main channel can penetrate through a probe portion of the endoscope device, the probe portion can move and shuttle along the catheter assembly, the catheter assembly can prevent the probe portion from making direct contact with the digestive tract, and discomfort to an examinee is reduced.

The utility model relates to the field of suction pump devices, and discloses a portable liquid suction pump device which comprises an oil barrel and a suction pump shell, an oil outlet pipe is arranged on the upper surface of the suction pump shell in a penetrating mode, a suction assembly is arranged on the lower surface of the suction pump shell, and a fixing mechanism is arranged on the lower surface of the suction pump shell. The fixing mechanism comprises a clamping assembly and a positioning assembly; the suction assembly comprises an oil pumping pipe, the lower surface of the oil pumping pipe penetrates through and is slidably connected with an extension pipe, and the oil pumping pipe penetrates through the lower surface of the suction pump shell. According to the suction pump device, under the cooperation of the clamping assembly, the pressing plate is pressed downwards to drive the positioning ring to move downwards, the round rod extrudes the sliding groove, the clamping plates are promoted to synchronously close to clamp the opening of the oil barrel, the suction pump device can be stably fixed to the oil barrel through the one-way limiting function of the positioning assembly, the device is prevented from shaking in the suction process, and the stability of suction operation is guaranteed; and the risk of liquid spilling is reduced.

The present disclosure relates generally to small gauge instruments for surgical procedures, and more particularly to vitreoretinal instruments for retinal repair and reattachment procedures and related methods of use. Certain embodiments of the present disclosure provide a curved or articulating probe configured to provide illumination, fluid aspiration, and intraocular photocoagulation. Thus, the probe allows for aspiration of subretinal fluid that reaccumulates after initial drainage and during intraocular photocoagulation without the need to change surgical instruments or insert additional instruments into the intraocular space. Additionally, the combined functionality of the probe allows the surgeon to aspirate fluid and / or perform retinal photocoagulation while simultaneously performing scleral compression with the surgeon's other hand.

The utility model discloses a pressurized piston formula shower, related to liquid outlet shower field, is used for screwing fastening on bottle body screw thread mouth to make the liquid in bottle can atomize and spray, including the casing with handle structure, the casing is the casing of inner hollow upper opening, the lower extreme of casing is circular ring structure, and the lower extreme circular ring part inboard wall of casing is provided with the thread of being matched with bottle body screw thread mouth, the upper end lateral wall of casing is installed with the flap. The utility model discloses through pipeline and suction assembly cooperation and use, can realize the liquid outlet mode of both forms, one is to use the mode of pouring, and lets the pipeline upper and lower two through -orifices guide liquid to flow from the bottle, another is through the suction assembly and generates the negative pressure, and the liquid in the bottle is sucked, and through the atomizing nozzle, the liquid is sprayed, and further satisfy the demand under different conditions of user.

Method for embolization treatment at a target site within a vessel using an endovascular embolization system. A microcatheter is navigated to the target site in the vessel. Via the microcatheter, only embolic solution is injected into the vessel. Aspirated fluid representing only a portion of the injected embolic solution present in the vessel is aspirated into the microcatheter to prevent the injected embolic solution present in the vessel from proximally migrating in the vessel. Alternatively, the injected embolic solution is prevented from proximal migration by occluding the vessel with the distal end of the microcatheter.

An endoscopic system is presented, comprising: controller circuitry configured to issue a control signal to coordinate timing or other parameters of a fluid aspiration or irrigation device with timing or other parameters of an ablation member, where the control signal is automatically issued using a trained learning model, the trained learning model coordinates timing or other parameters of the fluid aspiration or irrigation device with timing or other parameters of the ablation member based on at least one of real-time data or historical data from one or more sensors communicatively coupled to the controller circuitry.