14 results about "Drug Contamination" patented technology

The needle type injection system assembling machine comprises a carrier mechanism, a lateral clamping mechanism, a material moving mechanism and a lateral material pushing mechanism, a pre-filling needle carrier of the carrier mechanism comprises a supporting seat, a bearing part and a first reset part, the bearing part can move between a first position and a second position, the first position is far away from the supporting seat, and the second position is far away from the supporting seat. The second position is close to the supporting seat, the first reset part is configured to enable the bearing part to deviate to the first position, the bearing part is used for bearing the pre-filling needles of the needle type injection system, and needle tips of the matched pre-filling needles with various lengths are all kept suspended. On one hand, the tops of the pre-filling needles with different lengths can be assembled with other parts at the same height to adapt to the pre-filling needles with different lengths, and on the other hand, the needle tip is always suspended in the air in the assembling process to prevent the needle tip from being in contact with a carrier or other parts, so that the risks of medicament pollution and needle tip damage are reduced; and the automation degree of assembly of the needle type injection system is improved.

Systems and methods presented herein facilitate the processing of mixed plastic medical waste (MPMW) into pyrolysis oil. Embodiments of the systems and methods enable MPMW to be treated by a single treatment unit and / or single treatment step that facilitates at least sterilization, agglomeration, densification, and heteroatom removal of the MPMW, thereby to yield pre-pyrolysis treated MPMW (PPT-MPMW) that is better suited for pyrolysis than untreated MPMW. Relative to MPMW, the PPT-MPMW may be mostly or entirely free of biological or medicinal contaminants, may have a substantially higher density, and may be mostly or entirely free of heteroatom contaminants. As such, the PPT-MPMW reduces or eliminates the risk of inadvertent exposure to biological or medicinal agents, improves the efficiency of pyrolysis oil production, reduces or eliminates the risk of damage to pyrolysis oil production and / or processing equipment that results from heteroatom content, and improves the stability of the resulting pyrolysis oil.

The utility model discloses a three-way valve, relates to the technical field of valves, and solves the technical problem that an existing three-way valve easily causes medicine pollution due to the structure of a valve body. The three-way valve comprises a valve body, a valve element and a sealing assembly, a first connecting pipe, a second connecting pipe and a third connecting pipe which are communicated with one another are arranged on the valve body, the valve element is rotatably arranged in the valve body, a three-way channel which can be communicated with the first connecting pipe, the second connecting pipe and the third connecting pipe is arranged on the valve element, and therefore the three-way valve is formed. A wrench is arranged on the valve element, the sealing assemblies are arranged at the positions, corresponding to the first connecting pipe, the second connecting pipe and the third connecting pipe, of the inner wall of the valve body, and the sealing assemblies abut against the side wall of the valve element in a sealed mode.

The utility model discloses a high voltage direct current relay with voltage detection, comprising a relay housing, the relay housing is internally provided with an installation groove, the installation groove is internally provided with two groups of main terminals, the bottom of each main terminal is provided with a power connection column, and the power connection columns are connected with a circuit in the relay housing. The interior of the main terminal is provided with a wiring hole, and the wiring hole is electrically connected with the power connection column. When the medicine dispensing device is used, bottled medicine particles are guided into the medicine bin, the medicine can slide into the medicine outlet, at the moment, the pressing block plays a role in blocking, the pressing block is pressed to enable the quantitative hole to move to be aligned with the medicine outlet, the medicine falls into the quantitative hole, only one medicine particle can fall into the quantitative hole, and the pressing block is loosened to reset through the spring column type pressing block. The quantitative hole and the medicine leaking opening are mutually aligned, so that medicine falls into the medicine box, one medicine can be discharged by pressing each time, accurate medicine discharging can be achieved, and medicine pollution is avoided.

The invention relates to a medicine bottle clamping mechanism which comprises a base, a clamping assembly, a synchronous structure and a driving device, the clamping assembly comprises two clamping pieces arranged in the first horizontal direction in a spaced mode, the two clamping pieces are movably installed on the base so that the distance between the two clamping pieces can be adjusted, and the synchronous structure is arranged between the two clamping pieces so that the distance between the two clamping pieces can be adjusted. The synchronous mechanism is arranged to enable the two clamping pieces to move synchronously, the driving device is connected with one clamping piece in a driving mode and used for driving the corresponding clamping piece to move, the two clamping pieces can move synchronously by arranging the synchronous mechanism, the two clamping pieces can be driven by one driving device, and consistency and stability of clamping actions can be kept. And meanwhile, a driving device is arranged to drive one clamping piece to move, so that the two clamping pieces can be close to or far away from each other, clamping and loosening of the medicine bottles are achieved, the automation degree of the medicine dispensing process can be improved, and the problems of medicine pollution and low efficiency caused by manual operation are solved.

The application belongs to the technical field of adsorbents for water treatment, and discloses an aluminum-based nanoflower adsorbent, a preparation method thereof and application of the aluminum-based nanoflower adsorbent in treating wastewater polluted by antiviral drugs. The preparation of the aluminum-based nanoflower adsorbent comprises the following steps: after water bath heating of aluminum material chemical polishing waste liquid and ammonia, post-treatment is performed to obtain the aluminum-based nanoflower adsorbent. The aluminum-based nanoflower adsorbent is prepared by using the aluminum material chemical polishing waste liquid, and the preparation process is simple, and the production cost is low, so that the purpose of "waste treatment by waste" is achieved. The obtained aluminum-based nanoflower adsorbent is easy to separate from the treated wastewater, has high treatment efficiency, and does not cause secondary pollution to the environment. The removal efficiency of the aluminum-based nanoflower adsorbent on lopinavir reaches 61.79-88.77%, and the removal efficiency of the aluminum-based nanoflower adsorbent on ciprofloxacin hydrochloride reaches 76.93-98.72%, so that the aluminum-based nanoflower adsorbent can be used as an adsorbent in wastewater polluted by antiviral drugs.

This invention discloses a method for detecting and evaluating pharmaceutical pollutants in water bodies based on a knowledge graph, comprising the following steps: acquiring monitoring data of pharmaceutical pollutants in water bodies and constructing a dynamic knowledge graph sequence; extracting the structural topological representation and textual semantic representation of compound nodes, and gating and fusing them to generate a multimodal initial representation; using DeepWalk to generate static embedding vectors for each time window; extracting temporal features through gated recurrent units to generate dynamic embedding vectors, and optimizing them using contrastive learning; inserting new pollutants into the graph and inferring their dynamic embedding vectors; calculating the similarity with known nodes to determine the risk warning level; searching for paths and converting them into natural language descriptive text, and outputting the warning level and explanatory text. This invention achieves dynamic, interpretable, and rapid evaluation of the risk of new pollutants, improving the accuracy of risk warnings and the transparency of decision-making.

The application belongs to the field of traditional Chinese medicine, and particularly relates to a time-delay spray containing dry toad extract and toad oil and a preparation method thereof. The time-delay spray provided by the application can significantly treat male erectile dysfunction. The time-delay spray prepared by the application has the advantages of direct action, quantitative drug delivery, and no contact to avoid drug pollution. The application realizes the transformation of waste into treasure of toad oil, fully excavates the medicinal value of toad oil, further improves the rational utilization system of toad resources, and provides a practical scheme for efficient development of toad medicinal resources.

The utility model relates to the field of medical instrument auxiliary devices, in particular to an anti-toppling medicine cup support. The anti-toppling medicine cup support comprises four sliding rails, a connecting plate, a connecting frame, a sliding frame and the like, each sliding rail is provided with a plurality of clamping grooves, the connecting frame is fixedly connected among the tops of the four sliding rails, and the sliding frame is fixedly connected with the connecting plate. A plurality of sliding frames are vertically and slidably connected between the two sliding rails on the same side in the left-right direction through sliding grooves. A bolt is rotated to drive a limiting plate to be separated, a positioning plate is driven to overcome the elasticity of a first spring to be disengaged from a sliding rail, a sliding frame moves downwards, the overall gravity center of the containing disc is lowered, and the problems that an existing medicine cup support is high in height, the gravity center is scattered, toppling and shaking are likely to happen during collision, medicine is scattered, and medicine pollution and waste are caused are solved. And particularly, the influence on expensive or special drugs is particularly significant.

A drug storage apparatus having a classification function, comprising a support bracket (1), a storage cabinet (2), a storage groove (3), a storage box (4), an adjustment plate (5), an adjustment shaft (6), an adjustment hole (7), a spiral spring (8), an adjustment handle (9), a drug guide frame (10), a material guide port (11), L-shaped extension plates (12), extension springs (13), an adjustment groove (14), a sliding assembly, a restoring assembly, a guide assembly, and an opening and closing assembly, wherein the adjustment plate (5) is provided inside the storage box (4), the adjustment shaft (6) is provided inside one end of the adjustment plate (5), the extension springs (13) are arranged at the other end of the adjustment plate (5), a plurality of groups of extension springs (13) are provided, the L-shaped extension plate (12) is provided at one end of the extension springs (13), and the adjustment groove (14) is provided on one side of the storage box (4). During use of the drug storage apparatus, when the adjustment plate (5) is inclined, an upper edge of the opening and closing assembly can be abutted and squeezed by a lower edge of the front end of the drug guide frame (10), such that drugs can smoothly slide out along the drug guide frame (10), thereby avoiding drug contamination that may be caused by fully opening the storage box (4), and achieving rapid and convenient removal and effective classification and management of the drugs.

The invention discloses a safe liquid medicine preparation dissolving device which comprises an outer sleeve, a plunger and a puncture needle tube, the outer sleeve comprises a tube body with a containing cavity and a puncture part, and the puncture part is arranged at the front end of the tube body in an extending mode and internally provided with a through hole; the plunger is arranged in the outer sleeve body in a sliding mode, a plunger body is an inner sleeve provided with a containing cavity, the front end of the inner sleeve is connected with an elastic component, and the outer diameter of the elastic component is in interference fit with the inner diameter of the outer sleeve body. The puncture needle tube is axially assembled and fixed in the inner cavity at the front end of the inner sleeve, the rear section extends into the accommodating cavity of the inner sleeve, and the front section penetrates through the through hole of the puncture part of the outer sleeve and extends to the area, close to the opening end, of the front part of the through hole. According to the invention, liquid medicine is not in contact with outside air during medicine dispensing, so that liquid medicine pollution is avoided; potential harm to medical staff caused by acupuncture injury is eliminated, and the whole liquid preparation process is safer, simpler, more convenient and more efficient in operation.

A bonding medicine dicing machine comprises a feeding container, a stirring mechanism, a conveying mechanism and a cutting mechanism. The stirring mechanism comprises a stirring driving unit and a stirring acting end; the conveying mechanism is located on one side of the discharging port of the feeding container, and the conveying mechanism is used for conveying the stirred bonding medicine; the cutting mechanism is located on one side of a conveying opening of the conveying mechanism and comprises a cutting driving unit and a cutting acting end, and the cutting driving unit drives the cutting acting end to conduct cutting and dicing operation on the bonding medicine conveyed out of the conveying opening. By means of the scheme, efficient and controllable cutting and dicing operation on bonded medicine is achieved, medicine which is difficult to treat in the previous medicine dispensing process and is seriously bonded can be quickly and accurately dispensed through the dicing machine, and the problems that medicine pollution is caused, dispensing is inaccurate, and medicine materials are wasted in the manual treatment process are solved.

A storage device for tablet assembling comprises an operation table, a storage part, a containing frame and a tablet feeding device. The operation table comprises a vertical wall and a platform; the storage part comprises a storage box and a medicine distributing hopper; the storage box is arranged on one side of the vertical wall; the medicine distributing hopper is arranged at the bottom of the storage box and communicated with the interior; a medicine distributing pipe is arranged at the bottom of the medicine distributing hopper; the two ends of the placing rack are respectively arranged on the vertical walls and are horizontally arranged below the medicine distributing pipes; the medicine feeding device comprises an operating rod, a traction rope, a medicine feeding plate, a spring and a limiting sleeve; the medicine feeding plate is horizontally and slidably arranged on the top face of the containing frame. The medicine feeding plate is sleeved with the limiting sleeve; the spring surrounds the medicine feeding plate, one end of the spring is connected to the limiting sleeve, and the other end is connected to one end of the medicine feeding plate; one end of the operating lever is rotationally arranged on the operating table; one end of the traction rope is connected to one end of the medicine feeding plate, and the other end is connected to the operating rod. The problems that manual tablet assembling is low in efficiency and prone to making mistakes, medicines are prone to being polluted or damaged, and reliability and safety of the medicines are affected are solved.

This invention discloses a safe drug preparation and dissolving device, comprising an outer tube, a plunger, and a puncture needle. The outer tube includes a tube body with a receiving cavity and a puncture section extending from the front end of the tube body with an internal through hole. The plunger is slidably disposed within the outer tube body. The plunger body is an inner tube with a receiving cavity, and an elastic component is connected to the front end of the inner tube. The outer diameter of the elastic component is interference-fitted with the inner diameter of the outer tube body. The puncture needle is axially fixed in the inner cavity at the front end of the inner tube, with its rear section extending into the receiving cavity of the inner tube and its front section passing through the through hole of the puncture section of the outer tube, extending to the area near the opening end of the through hole. This invention prevents the drug solution from contacting outside air during preparation, thus avoiding drug contamination; it eliminates the potential harm of needlestick injuries to medical personnel, and the entire preparation process is safer, simpler, and more efficient.