2152results about "Enemata/irrigators" patented technology

The present invention discloses a multi-functional bionic nasal irrigator, comprising a base, wherein a water pump for pumping water is arranged in the base, a key panel is arranged on an outer surface of the base, and a water pump water outlet pipe orifice connected to the water pump is arranged at the top of the base. A water-mist spray nozzle device and a water-column spray nozzle device that can be flexibly switched and mounted are designed on the base, main motor power is automatically adjusted according to assembling of different spray nozzle devices, the base is connected to the water-mist spray nozzle device and the water-column spray nozzle device both by clamping, and a diameter of a mist point water outlet hole of an atomization sheet is reduced to 0.15-0.26 mm, so that water mist sprayed has a smaller particle size.

The utility model provides a guiding device and dilator for improving pressure measurement accuracy, the guiding device comprises a pressure measurement sheath, the pressure measurement sheath comprises a handle and a sheath tube, the size and shape of the sheath tube are suitable for entering a target area in a body through a body lumen, the sheath tube longitudinally extends from a near end to a far end, the sheath tube defines a first lumen suitable for entering of an external instrument, and the first lumen is communicated with the handle. A pressure measuring tube cavity longitudinally extending from the near end to the far end is formed in the tube wall of the sheath tube, a pressure measuring opening used for sensing the pressure of liquid in the body is formed in the far side of the pressure measuring tube cavity, and the dilator is arranged in the first tube cavity in a supporting and penetrating mode so that the pressure measuring sheath can enter the body conveniently. And the dilator is provided with a blocking part for limiting foreign matters from entering the pressure measuring tube cavity through the pressure measuring port.

The invention discloses an intelligent temperature control and pressure monitoring type traditional Chinese medicine enema system. The system comprises a liquid medicine storage and delivery module, a temperature and pressure two-parameter monitoring module, an embedded microcontroller, an intelligent regulation and control module, a pressure safety threshold management and over-limit active protection module and a monitoring alarm and data management module. According to the intelligent temperature control and pressure monitoring type traditional Chinese medicine enema system, the temperature of liquid medicine in the traditional Chinese medicine enema process can be monitored and accurately controlled in real time through the high-precision temperature sensor and the intelligent temperature regulation and control unit, constant-temperature closed-loop control over the liquid medicine in the whole process is achieved, it is ensured that the temperature of the liquid medicine is always in the optimal treatment range, and the treatment effect is improved; by adopting the piezoelectric pressure sensor and the intelligent pressure regulation and control unit, the enema pressure can be monitored in real time, and the rotating speed and the flow of the micro pump can be regulated in time according to the pressure change condition, so that the enema pressure is always kept in a safe and effective range, and adverse reactions caused by too high or too low pressure are avoided.

The utility model discloses a flushing and pressure measuring pipeline of an endoscope flushing and suction system, which comprises a machine base, a peristaltic pump is arranged on the machine base, a flushing container is connected with the peristaltic pump and the flushing container through pipelines, and a filling and pressure measuring connector is communicated with an endoscope through a three-way connector. The perfusion pressure measuring bottle comprises a balloon bottle, a pressed connector is arranged at one end of the balloon bottle, the end, away from the pressed connector, of the balloon bottle is a threaded end, and the threaded end is an open connector end. A pressure transmission connector is arranged on the threaded end, a pressing disc is arranged at the end, close to the threaded end, of the pressure transmission connector, a protruding sealing ring base is arranged on the side, away from the pressure transmission connector, of the pressing disc, the pressing disc is sleeved with an air bag in an expansion state, and the air bag wraps the sealing ring base and then is arranged on the pressing disc in a sleeving mode. And the air bag is arranged in the cavity of the balloon bottle. The air bag is arranged in the saccule bottle of the flushing and perfusion pressure measuring bottle used in the endoscopic surgery, so that an isolation effect is achieved, a bacterium-blocking pressure measuring flushing pipeline is achieved, and the surgical risk is reduced.

The invention relates to a debridement nursing device in operating room nursing, belongs to the technical field of surgical operating instruments, and aims to solve the problems that a hose of a traditional flushing device is easy to block, needs to be manually disassembled for cleaning or increasing water pressure, is easy to damage tissues and interrupts an operation flow. Pressurizing assemblies are fixedly connected in the two air pressure adjusting cavity assemblies, ejector rod assemblies are connected in the two air pressure adjusting cavity assemblies, automatic detection and dredging of hose blockage are achieved through linkage of the air pressure adjusting cavity assemblies, the pressurizing assemblies and the ejector rod assemblies, when a hose liquid outlet is blocked, an electromagnetic valve switches an air source, and the hose liquid outlet is blocked. The extrusion action is matched with the high-speed flushing fluid to generate shearing force, attachments in the tube are stripped, and the situation that an operation is interrupted due to manual intervention is avoided.

A system and method that includes inserting a needle of a phacoemulsification handpiece into an eye of a patient and vibrating the needle in a first trajectory. Matter from the eye is aspirated via an aspiration line while the needle is vibrated in the first trajectory. An indication is received, of a vacuum level in the aspiration line. Determined is, that the vacuum level has changed by at least a preset vacuum level change, and in response vibrating the needle is switched to a second trajectory, different from the first trajectory.

The intelligent gynecological flushing system comprises a gynecological flushing platform, a colposcope image guiding system, a self-adaptive flushing execution system and an evaluation feedback optimization system, and the gynecological flushing platform is used for supporting a patient to conduct gynecological flushing; the colposcope image guiding system is used for collecting colposcope image data, identifying lesion characteristics based on an image identification technology, and transmitting an identification result to the self-adaptive flushing execution system; the self-adaptive flushing execution system is used for carrying out self-adaptive gynecological flushing on the focus part by utilizing flushing fluid according to the guidance of the colposcope image guidance system and based on the basic information of the patient; and the evaluation feedback optimization system is used for collecting the components of the flushing fluid after flushing and the reaction of the flushing part, performing quantitative evaluation on the flushing effect, feeding back the evaluation result to the self-adaptive flushing execution system, and optimizing the self-adaptive flushing parameters of the self-adaptive flushing execution system. According to the invention, the stability and accuracy of the flushing process can be ensured.

Provided herein are stable formulations containing active ingredients, such as antiviral compositions, or antiretroviral compositions in a powder form for reconstitution for intrarectal delivery to provide pre-exposure prophylaxis (PrEP) against viral infections. The antiviral composition may be tenofovir, for HIV PrEP.

The utility model is suitable for the technical field related to medical instruments, and provides a valve auxiliary system sheath which comprises a shell assembly and a catheter sheath tube arranged on the shell assembly. The bending adjusting handle is used for adjusting the angle of the tail end of the catheter sheathing canal, and the bending adjusting handle is connected with the shell assembly; the catheter sheath is used for being matched with the catheter sheath tube to achieve introduction of an interventional instrument or conveying of an auxiliary instrument; the flushing valve is used for conveying medicaments, and the flushing valve is communicated with the catheter sheath through an extension tube body; the catheter sheath tube, the catheter sheath, the flushing valve and other components are arranged in a matched mode, so that the dilator can be always kept in the catheter sheath tube in the original position in the process that the catheter sheath tube enters the access blood vessel of a patient, blood cannot permeate out of a product, use is convenient, and the valve positioning accuracy and the operation safety are effectively improved.

The present disclosure relates to a cannula and an enema composition for rectal administration via the cannula, particularly a liquid enema composition that forms a gel at body temperature. The cannula and enema are suitable for use in the treatment of ulcerative colitis, particularly distal ulcerative colitis (including proctitis and proctosigmoiditis).

The invention relates to the technical field of medical instruments, in particular to a negative pressure flushing type rectal anastomotic fistula treatment device with a blocking balloon, which comprises a drainage tube, a balloon, an annular sponge sleeve, a water injection tube and a filling tube, the balloon is arranged at the near end of the drainage tube, and the filling tube is communicated with the balloon and used for filling media into the balloon to block an enteric cavity; the annular sponge sleeve wraps the outer side of the drainage tube below the balloon, and a side hole II is formed in the section, wrapped by the annular sponge sleeve, of the drainage tube; the water injection pipe is arranged on the drainage pipe and used for injecting flushing fluid into the annular sponge sleeve area. The far end of the drainage tube is used for being connected with a negative pressure device so that a continuous negative pressure drainage environment can be formed in the annular sponge sleeve area, the negative pressure flushing type rectum anastomotic fistula treatment device with the blocking balloon does not need to be placed under an endoscope and only needs to be placed under direct vision of an anoscope, and operation is easy; near-end intestinal juice can be blocked, and the influence of the intestinal juice on healing of an anastomotic stoma is reduced.

The plugging drainage device comprises an outer sleeve, a flushing pipe, an inner suction pipe and an umbrella-shaped plugging mechanism, a plurality of first through holes are formed in the front end of the outer sleeve, the inner suction pipe is arranged in the outer sleeve, a plurality of second through holes are formed in the front end of the inner suction pipe, and the umbrella-shaped plugging mechanism is arranged in the inner suction pipe. The umbrella-shaped plugging mechanism is arranged at the front end of the outer sleeve and can be retracted into the outer sleeve. The device is provided with the plugging mechanism, the fistula can be plugged during flushing, intestinal juice loss is effectively avoided, postoperative recovery of a patient is facilitated, the umbrella-shaped structure is adopted for plugging, compared with bag plugging, the umbrella fabric of the umbrella-shaped structure can be tightly attached to the wound surface, obstruction is effectively avoided, and the application safety of the device is further improved.

The invention discloses a local oxygen therapy, flushing and skin stretching device for chronic wound treatment, and relates to the technical field of medical apparatuses and instruments, the local oxygen therapy, flushing and skin stretching device comprises a stretching disc, and a cleaning device is arranged in the middle of the stretching disc; according to the device, breakthrough is achieved through the combination of the circular structure of the stretching disc and the circumferentially-distributed T-shaped sliding racks; the circular geometric structure of the stretching disc has stress symmetry, and stretching force can be evenly dispersed; the position of the T-shaped sliding rack installed in a circumferential sliding mode can be flexibly adjusted in the radial direction of the stretching disc, and six or more stretching points can be set at will according to the boundary of the wound surface in cooperation with the sliding block and the T-shaped hook frame which can slide. For example, for an irregular polygonal wound surface of a diabetic foot, a medical worker can mark six stress balance points on the T-shaped sliding rack and fix the hook, synchronous or independent adjustment of multiple distraction points is achieved through linkage of the rotating gear ring and the multiple sets of gears, and the situation that skin ischemia blister is caused by too large local stress or tissue stretching is affected by insufficient stress is avoided.

The invention relates to the technical field of vaginal irrigation flow rate control, in particular to a vaginal irrigation expansion control method based on multi-modal data. The method comprises the following steps: acquiring pelvic floor electromyographic signals, pH values and flushing flow velocity data of a patient in a vaginal flushing expansion process; the myoelectricity influence degree of the current patient is obtained according to the pelvic floor myoelectricity signals and the flushing flow speed data of the matched historical patient of the current patient in the flushing expansion stage; obtaining the pH influence degree of the current patient according to the difference between the pH value of the current patient at each moment and the normal pH value range of the vagina and the change condition of the pH value in the preset domain time period at each moment; according to the myoelectricity influence degree and the pH influence degree, the flow speed adjusting weight of the current patient is obtained in real time, and the flushing flow speed of the current patient in the vagina flushing expansion process is controlled. The flow rate adjusting weight is accurately obtained in real time, so that the flushing flow rate is accurately adjusted, and the vagina is effectively prevented from being damaged in the flushing expansion process.

Described herein are shock wave catheters and methods of use thereof for delivering an active agent of a drug to the CNS via a body lumen or cavity, such as sinonasal cavity, which can bypass the blood-brain barrier (BBB). The catheters described herein can be advanced through an intranasal passage to the nasal cavity such that at least a portion of the enclosure is disposed in the nasal cavity. The enclosure can be coated with a drug coating. The method can include filling the enclosure with a conductive fluid. At least one shock wave can be generated at a shock wave emitter of the catheter disposed within the enclosure. The at least one shock wave can cause a therapeutically effective amount of the active agent of the drug coating to be delivered to the CNS via tissue of the nasal cavity, in turn, treating central nervous system diseases.

The invention discloses a negative pressure suction device for ear canal flushing. The negative pressure suction device comprises a handheld shell, a fluid channel assembly, a sealing adapter, a cleaning fluid supply unit and a negative pressure generation unit. A cavity is formed in the handheld shell; the fluid channel assembly penetrates through the cavity, the two ends of the fluid channel assembly extend out of the head and the tail of the handheld shell respectively, and the fluid channel assembly is provided with a cleaning fluid nozzle and a negative pressure suction port close to the head and communicated with a flushing channel and a negative pressure channel which are isolated from each other in the fluid channel assembly respectively. The sealing adapter is arranged at the tail of the handheld shell and used for being connected with the fluid channel assembly and guiding a flushing channel and a negative pressure channel of the fluid channel assembly to corresponding external interfaces after the flushing channel and the negative pressure channel are isolated. The cleaning fluid supply unit is communicated with the flushing channel to provide cleaning fluid; the negative pressure generating unit is communicated with the negative pressure channel to provide negative pressure power. According to the auditory meatus flushing device, through the physically-isolated double-channel design and a flushing and suction mechanism working synchronously, flushing fluid residues and cross contamination are effectively avoided, and the safety, efficiency and reliability of auditory meatus flushing operation are improved.

The invention belongs to the technical field of medical instruments, and discloses a gynecological postoperative flushing device which comprises an outer flushing tube and an inner suction tube, the outer diameter of the inner suction tube is smaller than the inner diameter of the outer flushing tube, and the inner suction tube penetrates through the outer flushing tube; the liquid inlet end of the outer flushing pipe is communicated with a flushing pump, the liquid inlet end of the flushing pump is communicated with a liquid storage bottle for storing flushing liquid, and a first through hole is formed in the liquid outlet end of the outer flushing pipe; the liquid outlet end of the suction inner tube is communicated with a collecting bottle, the collecting bottle is communicated with the suction pump through a negative pressure tube, and a second through hole is formed in the liquid inlet end of the suction inner tube; the outer side of the flushing outer pipe is adjustably connected with a fixing assembly. The flushing outer pipe and a wound are fixed through the fixing assembly, the fixing effect is good, and the situation that the pipeline displaces to rub skin is avoided; the flushing pump is started to flush the wound position in the abdominal cavity through the flushing outer pipe, the suction pump is started to drain hydrops in the abdominal cavity through the suction inner pipe, and flushing and drainage work can be completed through one-time intubation operation.

The utility model relates to the field of medical instruments, in particular to a jaw cyst windowing and pressure reducing device. The device comprises a guide part, a connecting part and a base which are sequentially arranged from top to bottom. And the small-diameter section of the guide part is positioned at the upper part. The connecting part is a cylinder, and the diameter of the connecting part is smaller than that of the bottom of the guide part. The short axis size of the base is larger than the diameter size of the bottom of the guide part. The bottom of the base is provided with a through hole penetrating to the position above the guide part, and a drainage channel is formed. The springback characteristic of soft tissue in the bag cavity is utilized, so that the guide part and the connecting part can be fixed in the bag cavity and cannot fall off; meanwhile, through the elliptic cylindrical base, the base is effectively prevented from entering the bag cavity, the shape of the vestibular groove is met, and the wearing is free of foreign body sensation and more comfortable.

The invention relates to the technical field of wound cleaning, and discloses a traditional Chinese medicine surgery wound cleaning device which comprises a butt joint conveying belt mechanism, the top of the butt joint conveying belt mechanism is fixedly provided with a fluid conversion cleaning mechanism, and the bottom of the butt joint conveying belt mechanism is movably provided with a disposable flushing suction mechanism or wiping mechanism. A limiting cleaning mechanism and a limiting evaporation mechanism are installed on the two sides of the butt joint conveying belt mechanism correspondingly. According to the wound cleaning device for the traditional Chinese medicine surgery department, through the arrangement of the butt joint conveying belt mechanism, the fluid conversion cleaning mechanism, the disposable flushing and suction mechanism, the wiping mechanism, the limiting cleaning mechanism and the limiting evaporation mechanism, the state of the disposable flushing and suction mechanism can be converted through the fluid conversion cleaning mechanism during use; therefore, foreign matters in the wound can be accurately flushed or sucked through the disposable flushing and sucking mechanism, and the cleaning effect on the foreign matters in the cut wound is improved.

This container adapter (10) for a syringe comprises a main body (12), having a lateral configuration suitable for entering by force into a container opening while being adapted to the complementary shape of an inner lateral wall of this container opening, and a through-hole (22), formed longitudinally in the main body (12), for insertion of a sampling endpiece of the syringe. It further comprises a head stopper (24), integral with the main body (12), having an insertion pin (26) shaped to enter by force into the through-hole (22) and seal the latter hermetically.

The utility model discloses an intervention alarm type pressurized infusion bag which comprises a pressurized bag body, one end of the pressurized bag body is communicated with a connecting hose in a penetrating mode, the other end of the connecting hose is provided with an inflatable air bag, the connecting hose is provided with a three-way valve, and the other end of the pressurized bag body is provided with a connecting piece. The annular rotating piece is arranged at the rear end of the pressure gauge and can rotate along with the pointer, under the interaction of the positioning columns, when the pressurizing bag is inflated, the pressure reaches 300 mmhg, the switch is turned on, the buzzer does not sound, lavage continues during operation, the pressure drops, and when the pressure drops to 250 mmhg, the annular rotating piece can rotate along with the pointer. The first contact switch is connected with the third contact switch, the buzzer gives an alarm to prompt that the pressurized infusion bag needs to be pressurized, after pressurization, the first contact switch is disconnected with the third contact switch, the buzzer circuit is disconnected, the buzzer stops giving an alarm, and the pressure alarm function of the whole infusion bag is achieved.

The invention belongs to the technical field of medical instruments. The invention discloses a novel multifunctional laryngeal mask which comprises a breather pipe, one end of the breather pipe is connected with an external ventilation loop through a connector, and the other end of the breather pipe is provided with a mask body used for ventilation, exhaust and secretion suction. The mask body is provided with a mask bag structure which is matched with the mask body so as to accord with the throat and spine characteristics of a patient, so that the stable limitation on the mask body is met, and safe sealed ventilation is realized. The device has the advantages that the device can accord with throat and spine characteristics of a patient to realize safe sealed ventilation, and the risk of regurgitation and aspiration due to the fact that gas enters the stomach of the patient is not easily caused.

The invention discloses a plastic suction flushing tube used in cooperation with a visual double-lumen bronchial catheter, the plastic suction flushing tube comprises a suction flushing tube, the suction flushing tube comprises a plastic part and an operation part, the plastic part is located at the far end of the suction flushing tube, a built-in steel wire is arranged at the position 1-1.5 cm away from a hole in the far end of the suction flushing tube, and the operation part is located in the plastic part. The built-in steel wire enables the plastic part to be bent at will and to be kept shaped; the shape of the front end of the suction and flushing pipe can be flexibly adjusted, the suction and flushing pipe can be accurately guided to a target suction or flushing area, the suction and flushing accuracy is improved, the risk that sputum or secretions are not thoroughly removed is reduced, complications such as respiratory tract blockage are reduced, and the life safety of a patient is guaranteed.

The utility model relates to the field of medical instruments, in particular to a disposable flushing and sucking ablation electrode. Comprising a handle part; the gun barrel is used for performing suction, flushing, electrocoagulation or electroresection treatment; the gun barrel comprises an inner tube, an outer tube, a rotating head and an electric knife head assembly; the flushing and suction assembly comprises a flushing pipeline, a flushing pipe control assembly, a suction pipeline, a suction pipe control assembly and a knob for locking the suction pipe control assembly; the gun barrel comprises the inner tube and the outer tube, the outer tube can be driven by the rotating head to move back and forth in the axial direction of the inner tube, on one hand, the outer tube can protect the electric knife head assembly to prevent the electric knife head assembly from being collided, and on the other hand, the electric knife head assembly is collected into the outer tube to facilitate follow-up flushing and sucking treatment; in addition, a knob capable of locking the suction tube control assembly is further arranged, so that an operator does not need to continuously press a suction button, and the operation difficulty is reduced.

A multi-parameter fusion digital flushing remote monitoring system is characterized in that a central processing unit is electrically connected with an input control module, a flushing temperature control module, a color identification module, an output monitoring module, an output control module and a pressure sensor, and dynamically monitors the input of flushing liquid, the output of waste liquid, the color of the waste liquid and the pressure in a tube cavity; the urine volume, the blood content of waste liquid and the pipe blocking risk in the flushing process are analyzed and calculated; and the central processing unit is configured into a feedback control loop comprising a waste liquid blood content index, flushing liquid flow rate and temperature multi-parameter fusion and multi-mode flushing. The automation level of bladder irrigation is improved, and monitoring loopholes are reduced.

Disclosed are an irrigator component and a nasal irrigator. The irrigator component includes: a body, a water tank, a water tank, a first nozzle and a second nozzle. The body includes a first connection portion and a second connection portion; the water tank is configured to store cleaning liquid, and the water tank is connected to the first connection portion; the waste tank is configured to recycle the cleaning liquid, and the waste tank is connected to the second connection portion; and the first nozzle is communicated with the water tank and the second nozzle is communicated with the waste tank. The cleaning liquid is configured to enter user's nasal cavity through the first nozzle, and flow back to the waste tank from the second nozzle.

The invention belongs to the technical field of medical instruments, and particularly relates to wound cleaning and nursing equipment for trauma, which comprises a base, a lifting and positioning mechanism, a support frame and a flushing and blowing mechanism are arranged on the base, a sliding groove is formed in the top of the support frame, and a sliding block is slidably arranged in the sliding groove; the flushing and blowing mechanism comprises a driving assembly, a liquid storage tank and a gas storage tank, and the driving assembly is in transmission connection with the liquid storage tank and the gas storage tank; cooperative operation of stable conveying of flushing fluid and rapid blowing-out of gas can be achieved, wounds and peripheral skin can be dried through the blowing head in time after cleaning, wiping injury is avoided, the risk of bacterium breeding is reduced, time consumed by the nursing process is shortened, extrusion pressure of the flushing fluid in the fluid storage tank can be controlled, and the nursing efficiency is improved. And the problem that the wound is secondarily damaged due to excessive pressure or the cleaning is not thorough due to excessive pressure is effectively avoided.

The utility model discloses an abdominal cavity drainage tube which comprises an outer sleeve and a liquid suction tube arranged in the outer sleeve in a sleeved mode, a flushing cavity is formed between the outer sleeve and the liquid suction tube, the outer sleeve is connected with a flushing tube, a plurality of flushing holes are formed in the side wall of the outer sleeve, the flushing holes are communicated with the flushing cavity, and the liquid suction tube is communicated with the flushing cavity. And a plurality of connecting pipes are arranged between the outer sleeve and the pipette. According to the utility model, the drainage tube is inserted into the body of a patient, the flushing tube is connected with the flushing equipment, and the liquid suction tube is connected with the drainage equipment, so that flushing fluid can enter the flushing cavity from the flushing tube and then enter the body of the patient for flushing, effusion can enter the liquid suction tube from the connecting tube for drainage, and the flushing fluid and the effusion are respectively positioned in different tubes; and the peritoneal cavity of the patient can be washed clean, so that secondary infection is avoided.

The invention belongs to the technical field of medical instruments, and particularly relates to a safe gastric lavage device suitable for children, the gastric lavage device comprises a first base and a second base, the second base is fixed on one side of the first base, and two sides of the first base are rotatably connected with a first supporting arm and a second supporting arm respectively; the two sides of the second base are rotationally connected with a third supporting arm and a fourth supporting arm respectively, a first connecting rod is fixed between the first supporting arm and the third supporting arm, a second connecting rod is fixed between the second supporting arm and the fourth supporting arm, and the first supporting arm, the third supporting arm and the first connecting rod jointly form an upper supporting unit. By rotating the first driving shaft rod, the upper supporting unit and the lower supporting unit support and limit the oral cavity of a child, a stomach tube is limited through the multiple limiting sleeves distributed in a broken line form, the insertion depth of the stomach tube is prevented from being changed, and the safety of the child in the gastric lavage process is improved.

The invention provides an eyewash equipment liquid flow control method and system, and relates to the technical field of eyewash equipment liquid flow control. The method comprises the following steps: judging whether a liquid flow path at an outlet of a nozzle is blocked or not according to a fluid pressure signal; when the micro pump is judged to be blocked, controlling the micro pump to suspend or reduce the liquid flow, and recording the blocking duration; when it is judged that the liquid flow path is smooth, liquid conveying is recovered, and the duration time when the liquid flow path is blocked is accumulated; and after the preset total conveying time is over, extra time for supplementing conveying is calculated, and the micro pump is controlled to carry out extra liquid conveying according to the extra time. The method aims at overcoming the physical interruption of instant eye reflection of a user on the micro liquid flow and solving the problem that an existing open-loop control system cannot sense the interruption so that the dosage of the liquid medicine is inaccurate, and therefore it is ensured that the total amount of the liquid medicine finally acting on the eyeballs is accurately consistent with the preset treatment dosage.