48 results about "Fluid aspiration" patented technology

The utility model relates to the technical field of water ecology research, in particular to an automatic sample concentration device. The automatic sample concentration device comprises a case, a concentration barrel, a liquid suction device, a suction pipe and a sample bottle, a case cover is arranged at the top of the case, the concentration barrel is arranged in the case, the suction pipe is vertically arranged at the lower end of the case cover, the lower end of the suction pipe extends into the concentration barrel from top to bottom, and the liquid suction device is arranged in the case cover. The liquid suction device is connected and communicated with the upper end of the suction pipe, a sample discharge port with an electric control valve is formed in the bottom wall of the concentration barrel, the sample bottle is arranged below the sample discharge port, and a sampling port for taking out the sample bottle is formed in the side wall of the case. The device has the advantages that the structural design is simple and reasonable, the subsequent concentration operation process can be simplified on the premise of realizing natural precipitation and concentration of a sample, the detection efficiency is improved, and the accuracy of a detection result is ensured.

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.

The utility model discloses an in-vitro follicular fluid semi-automatic collecting device which comprises a negative pressure adsorption assembly, the negative pressure adsorption assembly comprises a portable liquid suction device, a waste liquid cup is detachably arranged on one side of the portable liquid suction device, the portable liquid suction device is connected with the waste liquid cup through a suction pipe, and the suction pipe is connected with the negative pressure adsorption assembly. A suction catheter is arranged at the upper end of the waste liquid cup, one end of the suction catheter extends into the waste liquid cup, and the other end of the suction catheter is fixedly connected with a three-way valve; and the connecting pipe group comprises an exhaust extension hose. According to the in-vitro follicular fluid semi-automatic collecting device, the negative pressure adsorption assembly, the connecting pipe set and the sampling needle set are combined, follicular fluid can be extracted in a semi-automatic mode, a large amount of follicular fluid needs to be collected, for example, when the follicular fluid exceeds 200 mL, the follicular fluid can be collected by multiple persons through the same instrument at the same time, materials are used as least as possible, and the cost is reduced. The sampling speed is increased, and the follicular fluid collection efficiency and quality are guaranteed.

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.

To provide a liquid absorption tool capable of successively absorbing a liquid within a body by suppressing complication of operation by an operator concerning an endoscopic operation.SOLUTION: A liquid absorption tool 1 used in an endoscopic operation to absorb a liquid 80 within the body of a patient 60 comprises: a tube 10 which is inserted into the body via a trocar 50 installed on a body surface 70 of the patient 60, has a hole 13 on one end 11 side, and is capable of performing suction from the other end 12; and a sponge body 20 which is connected to the one end 11 side of the tube 10, surrounds the one end 11 side of the tube 10, and has liquid absorption property and flexibility.SELECTED DRAWING: Figure 2

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.

A safety type puncture needle comprises a needle shell and a needle core, the needle shell comprises a needle shell needle point, a needle tube and a needle shell needle seat, the needle core comprises a needle core blunt end, a needle core tube and a needle core tail seat, a drainage hole is formed in the needle core blunt end, the needle core is hollow, the needle shell wraps the needle core, and the needle core and the needle shell are fixed through a threaded nut. The device can assist medical staff in rapidly and effectively extracting effusion, the puncture needle can be freely moved in one cavity to select the effusion suction position during effusion extraction, secondary accidental injury to the cavity is avoided, and the device is safe and stable.

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 cover structure for covering a well plate is provided. The present invention includes n grooves 11 formed on the top of a cover structure 1, and a positioning structure 12 formed on the top of the cover structure and located inside or outside the grooves, where the value of n is a positive integer, and the positioning structure is adapted to a position 22 of a well in a well plate 2. The present invention further provides an automatic processing device, which includes a sample area for receiving the combination of the cover structure and the well plate, a positioning module for determining the spatial position of the cover structure by the positioning structures of the cover structure, and a mechanical module coupled to the positioning module and having a liquid suction and discharge mechanism.

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.

A tail-filled bone implant capable of achieving negative pressure drainage comprises a support shell and a base, and an inner cavity of the support shell is filled with filler materials; the support shell and the base are detachably connected, the support shell is provided with a tail end opening, and the internal filler can be placed in an internal cavity of the support shell through the tail end opening; a fluid suction assembly is arranged on the base; one end of the fluid suction assembly is opened at the head end of the base and communicated with the cavity in the support shell, the other end is opened at the tail end of the base and communicated with the outside of a human body, and the middle forms a turn-back type fluid passage in the base; the implant can adapt to a complex human physiological environment, and the overall performance of the implant is improved; the internal stress self-adaptive adjusting structure promotes growth and integration of bone tissues and adapts to individual differences of different patients; the efficient fluid suction and management function system realizes efficient effusion and pneumatosis discharge and pressure release functions; different clinical requirements are met through diversified filler selection and adaptive filling methods.

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.

The invention relates to the technical field of medical instruments, in particular to an ear tympanic membrane catheterization device. The ear tympanic membrane catheterization device comprises a main catheter body, a guiding catheter and a pushing assembly. A containing cavity is formed in the main pipe body; the guide tube is connected with the main tube body, the direction of the guide tube can be freely adjusted according to habits of a user and is not limited by angles, a cutting edge or a tip is arranged at the far end of the guide tube, and the far end of the guide tube is used for accommodating a ventilation tube; the pushing assembly is connected with the main pipe body and used for pushing the ventilation pipe arranged at the far end of the guiding pipe, and liquid in the containing cavity is pushed out of the far end of the guiding pipe or liquid outside the far end of the guiding pipe is sucked into the containing cavity. The ear tympanic membrane catheterization device is simple in structure and convenient to use, operation time can be shortened, operation efficiency can be improved, and pain and psychological burden of a patient can be relieved.

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.

According to one embodiment, a measuring chip includes a chip body, an aspiration port, a plurality of terminals, and an attaching portion. The chip body accommodates a sample or a mixture liquid obtained by mixing a reagent that reacts with the sample or a diluent that dilutes the sample with the sample. The aspiration port is provided in the chip body and aspirate the sample or the mixture liquid. The plurality of terminals is provided in the chip body and measure a concentration of a target substance in the sample or the mixture liquid aspirated from the aspiration port. The attaching portion attaches the chip body to a transporter of an automatic analyzing apparatus.

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.

This invention discloses a bipolar electrocoagulation device for nasal hemostasis, comprising a forceps barrel and a handle fixedly connected to the right side of the forceps barrel. A first slot is formed at the bottom right side of the forceps barrel, and a handle is slidably connected to the inner cavity of the first slot. In use, a button is pressed, and a locking block is pulled away from between two fixed blocks. Then, the handle is gripped with fingers and brought close to the handle. When the leftmost fixed block is in contact with the second stop plate, the button can be released, causing the locking block to fall between the two right-side fixed blocks and lock. Pushing the rack to the left moves the movable plate to the left, and the T-shaped rod pushes the suction tube horizontally to the left, causing the suction tube to protrude to the left side of the two forceps heads. This allows the surgeon to easily remove accumulated fluid around the surgical site, improving ease of use and ensuring thorough drainage of accumulated fluid, thus enhancing the surgical outcome.

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.

The invention relates to the technical field of medical instruments, and discloses a portable cirrhosis ascites aspirator which comprises a piston type driving mechanism and a buffer type liquid conveying mechanism. The first liquid one-way valve and the second liquid one-way valve are installed in the longitudinal hollow shell and can perform one-way control on flowing liquid, and the annular air film can perform a buffering effect on the flowing liquid. According to the portable ascites aspirator for cirrhosis, the piston type movement principle is utilized, the functions of negative pressure suction and high pressure discharge of accumulated water can be achieved, and therefore the effective suction and discharge effect of accumulated water on the abdomen of a patient is achieved; the annular gas film can automatically generate a buffering effect on flowing liquid according to the inner side area, the outer layer area and the elastic capacity of the annular gas film, so that the negative influence caused by the water hammer effect is reduced, and the liquid backflow phenomenon is reduced.

An apparatus for treating a relief plate precursor, such as a printing plate precursor, with a liquid, includes a treatment compartment for treating the relief plate precursor with a liquid, and a transport system for use with one or more transport bars. A transport bar thereof is configured to be coupled to a relief plate precursor. The transport system is configured to move the transport bar with the coupled relief plate precursor through the treatment compartment. The transport bar is provided with a coupling portion configured to couple the transport bar to the transport system. A protection system is configured to guide and evacuate liquid such that the transport system is protected against wetting with the liquid of the treatment compartment.