A constant pressure through-wall continuous transmission system for intravenous drug preparation center

Abstract

The utility model discloses a constant pressure wall -penetrating continuous transmission system of intravenous drug configuration center, include: preparation room, preparation room and the partition wall, the partition wall is located between preparation room and preparation room, is used for dividing preparation room and preparation room outside, transmission channel subassembly, the transmission mouth that has been set up on the partition wall is penetrated, transmission channel subassembly two ends respectively extend to preparation room and preparation room outside, and transmission channel subassembly passes through the synergism of lower transmission zone, upper transmission zone, baffle and passageway cover, when upper transmission zone operation, at least one baffle is in transmission gap, at least one baffle and passageway cover inboard movable abut, can divide transmission gap for multiple temporary sealed space, while the wall -penetrating transmission of medicine, breaks out preparation room internal and external airflow exchange, effectively prevents preparation room internal gas blowdown, avoids the medicine pollution risk caused by the pressure imbalance.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically to a constant pressure through-wall continuous transmission system for an intravenous medication preparation center. Background Technology

[0002] Intravenous drug preparation centers must strictly separate the internal and external environments of the preparation room. The preparation room usually needs to maintain a specific air pressure to ensure cleanliness. In the actual industry standards for intravenous drug preparation centers (PIVAS), the preparation room usually needs to maintain a positive pressure state to prevent outdoor contaminated air from entering. The pressure difference between it and the adjacent non-clean area is generally required to be no less than 10 Pa. Drug transfer must be carried out efficiently and continuously under the premise of isolating the internal and external environments and avoiding gas leakage.

[0003] A fully automatic drug dispensing device, with announcement number CN108992348B, includes a pre-mixing chamber, a liquid preparation chamber, and a dispensing chamber arranged sequentially and adjacently. The liquid preparation chamber is equipped with a needle cap clamping device, a main robotic arm, a secondary robotic arm, a liquid bag placement grid, and a transport track. The transport track is equipped with a tray. The two ends of the transport track extend into the pre-mixing chamber and the dispensing chamber, respectively. Each of the pre-mixing chamber, the liquid preparation chamber, and the dispensing chamber is equipped with a pressure regulating device and a pressure sensor.

[0004] The invention disclosed in CN119186656A discloses a pass-through window with a wall-penetrating system, a sterile solution transfer system, and an operation method for cross-regional solution transfer. The pass-through window includes a sleeve that passes through the wall, with one end of the sleeve extending into the cavity of the pass-through window and the other end located outside the pass-through window. Both ends of the sleeve are equipped with blind plates, and chucks are installed on the blind plates.

[0005] Currently, traditional transmission methods lack effective sealing structures. During the transmission of medicines through walls, the positive pressure in the preparation room is prone to leakage, leading to an imbalance in indoor air pressure, which damages the clean environment. This may not only contaminate the prepared medicines but also require readjustment of the air pressure, increasing operating and time costs. Utility Model Content

[0006] The purpose of this invention is to provide a constant pressure through-wall continuous transmission system for intravenous medication preparation centers in order to solve the above problems and overcome the defects of the prior art, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This application provides a constant pressure through-wall continuous transmission system for an intravenous medication preparation center, including:

[0009] The preparation room includes an interior, an exterior, and a partition wall, wherein the partition wall is located between the interior and exterior of the preparation room and is used to delineate the interior and exterior of the preparation room.

[0010] A transmission channel assembly, through a transmission port opened in the isolation wall, extends to the inside and outside of the preparation room at both ends. The transmission channel assembly and the isolation wall together form a closed transmission space to prevent gas leakage from the preparation room while the transmission channel assembly transmits the medicine.

[0011] The lifting door assembly is located at the transmission port and is used to seal the transmission port.

[0012] In some embodiments of the first aspect, the transmission channel assembly includes a lower transmission belt and an upper transmission belt disposed parallel to and directly above the lower transmission belt, a transmission gap being formed between the upper transmission belt and the lower transmission belt, and a plurality of baffles being disposed on the outer side of the upper transmission belt along its transmission direction.

[0013] In some embodiments of the first aspect, the transmission channel assembly further includes a channel cover covering the outer sides of the lower and upper transmission belts. During operation of the upper transmission belt, at least one baffle is located within the transmission gap, and the upper side of at least one baffle is in movable contact with the inner side of the channel cover. The channel cover is provided with an air outlet for supplying fresh air to maintain constant pressure in the preparation room.

[0014] In some embodiments of the first aspect, the lower conveyor belt and the upper conveyor belt are provided with support panels on both sides for supporting them, and the support panels are provided with first mounting panels for fixed installation with the isolation wall.

[0015] In some embodiments of the first aspect, the lifting door assembly includes a housing, a drive unit, a track structure, and a door cover. The housing is fixedly mounted on the isolation wall via a second mounting panel, and the drive unit moves the door cover via the track structure to realize the opening and closing of the transmission port.

[0016] In some embodiments of this application, the trajectory structure includes a trajectory plate and guide shafts. Two sets of guide shafts are provided and located on both sides of the door cover. Each set of guide shafts has two shafts. The trajectory plate is located inside the outer shell and has a trajectory groove that is slidably connected to the guide shafts.

[0017] In some embodiments of this application, the driving element is an electric push rod, the fixed end of which is hinged to the inside of the housing via a hinge seat, and the output end of which is hinged to the door cover.

[0018] In some embodiments of this application, the preparation room is provided with a secondary transmission component connected to the transmission channel component, and the secondary transmission component is provided with a plurality of primary transmission components along its transmission direction, and a biosafety cabinet is provided on one side of each primary transmission component.

[0019] In some embodiments of this application, both the primary transmission component and the secondary transmission component are belt conveyors, and the transmission speeds of the primary transmission component, the transmission channel component, and the secondary transmission component are consistent.

[0020] The beneficial effects are:

[0021] 1. The transmission channel assembly, through the coordinated action of the lower transmission belt, upper transmission belt, baffles, and channel cover, ensures that when the upper transmission belt is in operation, at least one baffle is located within the transmission gap and at least one baffle is in active contact with the inner side of the channel cover. This divides the transmission gap into multiple temporary sealed spaces, which, while transmitting medicine through the wall, blocks the exchange of airflow between the inside and outside of the preparation room, effectively preventing gas leakage from the preparation room and avoiding the risk of medicine contamination due to air pressure imbalance.

[0022] 2. The lifting door assembly closes the transmission port after the medicine transfer is completed, forming a dual protection of dynamic and static sealing, further consolidating the stability of the environment inside the preparation room. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is the front view of this utility model;

[0025] Figure 2 This is a utility model Figure 1 A three-dimensional image;

[0026] Figure 3 This is a perspective view of the transmission channel component of this utility model;

[0027] Figure 4 This is a three-dimensional view of the internal structure of the transmission channel component of this utility model;

[0028] Figure 5 This is a utility model Figure 4 Another perspective 3D view;

[0029] Figure 6 This is a utility model Figure 1 3D view of the lifting door assembly;

[0030] Figure 7 This is a perspective view of the upper conveyor belt of this utility model;

[0031] Figure 8This is a schematic diagram of the internal and external structures of the preparation room of this utility model.

[0032] Figure 9 This is a schematic diagram of the airflow state structure of this utility model.

[0033] The reference numerals in the attached drawings are explained as follows: 1. Transmission channel assembly; 101. Lower conveyor belt; 102. Channel cover; 103. Support panel; 104. Upper conveyor belt; 105. Baffle; 106. First mounting panel; 107. Air outlet; 2. Inside the preparation room; 3. Outside the preparation room; 4. Isolation wall; 401. Transmission port; 5. Secondary transmission assembly; 6. Primary transmission assembly; 7. Biosafety cabinet; 8. Lifting door assembly; 801. Outer shell; 802. Second mounting panel; 803. Electric push rod; 804. Track plate; 805. Door cover; 806. Guide rail shaft; 807. Track groove; 808. Hinge seat. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] It is important to emphasize that this application is based on extensive and in-depth research, which found that intravenous drug preparation centers (IVAS) must strictly separate the internal and external environments of the preparation room. The preparation room typically needs to maintain a specific air pressure to ensure cleanliness. In actual industry standards for IVAS, the preparation room usually needs to maintain a positive pressure state to prevent the entry of contaminated outdoor air. The pressure difference between the preparation room and adjacent non-clean areas is generally required to be no less than 10 Pa. Drug transfer must achieve efficient and continuous delivery under the premise of isolating the internal and external environments and preventing gas leakage. However, traditional transfer methods have significant drawbacks: firstly, they lack effective sealing structures, which can easily lead to pressure imbalances within the preparation room during transfer, damaging the clean environment; secondly, the transfer continuity is poor, and the transfer of drugs from the preparation station to the outside is prone to jamming, making continuous transfer difficult. To address the problems of this system, this application provides a constant pressure through-wall continuous transmission system for an intravenous medication preparation center. The system divides the inner and outer areas by an isolation wall and constructs a closed transmission space using a transmission channel component that penetrates the isolation wall. In this system, the transmission channel component adopts an upper and lower transmission belt cooperative structure. The baffle on the outer side of the upper transmission belt can separate the transmission gap during operation and, together with the channel cover, form multiple seals, which not only ensures stable drug transmission but also effectively prevents gas leakage from the preparation room.

[0036] See Figures 1-9As shown, this utility model provides a constant pressure through-wall continuous transmission system for an intravenous medication preparation center, including an isolation wall 4 for dividing the preparation room 2 into an inner preparation room and an outer preparation room 3. The isolation wall 4 is located between the inner preparation room 2 and the outer preparation room 3. A transmission port 401 is opened on the isolation wall 4, and a transmission channel assembly 1 is provided through the transmission port 401. The two ends of the transmission channel assembly 1 extend to the inner preparation room 2 and the outer preparation room 3, respectively. The transmission channel assembly 1 and the isolation wall 4 cooperate to form a closed transmission space, which is used to prevent gas leakage from the preparation room 2 while the transmission channel assembly 1 transmits the medication. A lifting door assembly 8 is provided at the transmission port 401 to achieve sealing.

[0037] See instruction manual attached Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 9 As shown, the transmission channel assembly 1 includes a lower transmission belt 101 and an upper transmission belt 104 arranged parallel to the lower transmission belt 101 directly above it. A transmission gap is formed between the upper transmission belt 104 and the lower transmission belt 101. Several baffles 105 are arranged on the outer side of the upper transmission belt 104 along its transmission direction. The transmission channel assembly 1 also includes a channel cover 102 covering the outer side of the lower transmission belt 101 and the upper transmission belt 104. During the operation of the upper transmission belt 104, at least one baffle 105 is located in the transmission gap, and the upper side of at least one baffle 105 is in movable contact with the inner side of the channel cover 102. The channel cover 102 is provided with an air outlet 107 for supplying fresh air into it to maintain constant pressure in the preparation room. In practical applications, the air outlet 107 is connected to an external high-efficiency filter air supply system to supplement fresh air into the channel cover 102 and to balance the air leakage between the baffle 105 and the inner side of the channel cover 102, thereby dynamically balancing the air pressure. The lower conveyor belt 101 and the upper conveyor belt 104 are provided with support panels 103 on both sides for supporting them. The support panels 103 are provided with a first mounting panel 106 for fixed installation with the isolation wall 4.

[0038] In this embodiment, the transmission channel assembly 1 is the core unit for achieving constant-pressure sealed transmission of medicines. Its lower transmission belt 101, upper transmission belt 104, baffles 105, and channel cover 102 are designed collaboratively to ensure stable and continuous delivery of medicines while strictly isolating the air pressure inside the preparation room 2 from outside the preparation room 3, thus preventing damage to the clean environment. Specifically, when the upper transmission belt 104 is in operation, at least one baffle 105 is located within the transmission gap, and the upper side of at least one baffle 105 is in movable contact with the inner side of the channel cover 102. This design divides the transmission gap into multiple independent temporary sealed spaces. The baffles 105 located within the transmission gap block the direct airflow channel between inside the preparation room 2 and outside the preparation room 3, while the baffles contacting the channel cover 102 further seal the top gap. This dual action effectively prevents positive pressure leakage from the preparation room, avoids the entry of polluted outdoor air, and ensures a clean environment. Furthermore, the spacing and number of adjacent baffles 105 can be designed according to the length of the medicine, such as 10-30cm, which can segment and limit the medicine during transmission, preventing multiple bottles or bags of medicine from stacking or colliding in the transmission gap, making it especially suitable for batch continuous transmission scenarios.

[0039] See instruction manual attached Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the lifting door assembly 8 includes a housing 801, a drive unit, a track structure, and a door cover 805. The housing 801 is fixedly mounted on the isolation wall 4 via a second mounting panel 802. The drive unit moves the door cover 805 via the track structure to open and close the transmission port 401. The track structure includes a track plate 804 and guide shafts 806. Two sets of guide shafts 806 are provided and located on both sides of the door cover 805, with two guide shafts in each set. The track plate 804 is located inside the housing 801, and a track groove 807 is provided on the track plate 804 to slide and cooperate with the guide shafts 806. The drive unit is an electric push rod 803. The fixed end of the electric push rod 803 is hinged to the inside of the housing 801 via a hinge seat 808, and the output end of the electric push rod 803 is hinged to the door cover 805. In practical applications, although the baffle 105 located in the transmission gap can block the direct airflow channel between the preparation room 2 and the preparation room 3, greatly reducing gas leakage from the preparation room 2, when the transmission of medicine is stopped, the fit between the baffle 105 and the channel cover 102 is not absolutely sealed, and some gas leakage will still occur. At this time, the transmission port 401 can be completely sealed by the lifting door assembly 8, which can completely isolate the preparation room 2 from the preparation room 3.

[0040] The preparation room 2 is equipped with a secondary transmission component 5 that is connected to the transmission channel component 1. Several primary transmission components 6 are provided on the secondary transmission component 5 along its transmission direction. Each primary transmission component 6 is equipped with a biosafety cabinet 7 on one side.

[0041] Both the primary transmission component 6 and the secondary transmission component 5 are belt conveyors, and the transmission speeds of the primary transmission component 6, transmission channel component 1, and secondary transmission component 5 are kept consistent. This consistency is ensured by controlling the individual servo motors within the primary transmission component 6, transmission channel component 1, and secondary transmission component 5.

[0042] The working principle of this utility model:

[0043] The medicines in preparation room 2 are collected on secondary transmission component 5 by various primary transmission components 6, and then transported by secondary transmission component 5 to transmission channel component 1 at transmission port 401. The lifting door component 8 at transmission port 401 is in the open state, and at the same time, the lower transmission belt 101 and the upper transmission belt 104 of transmission channel component 1 are started. When the medicines are transported by secondary transmission component 5 to the transmission gap between lower transmission belt 101 and upper transmission belt 104, lower transmission belt 101 continues to transport the medicines, and baffle 105 separates the transmission gap as upper transmission belt 104 rotates. While realizing the transport of medicines, it also realizes the dynamic sealing and isolation between preparation room 2 and outside preparation room 3. After the medicines are transported, lower transmission belt 101 and upper transmission belt 104 of transmission channel component 1 stop operating, and lifting door component 8 closes transmission port 401.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A constant-pressure through-wall continuous transmission system for an intravenous medication preparation center, characterized in that, include: The preparation room includes an interior, an exterior, and a partition wall, wherein the partition wall is located between the interior and exterior of the preparation room and is used to delineate the interior and exterior of the preparation room. A transmission channel assembly, through a transmission port opened in the isolation wall, extends to the inside and outside of the preparation room at both ends. The transmission channel assembly and the isolation wall together form a closed transmission space to prevent gas leakage from the preparation room while the transmission channel assembly transmits the medicine. The lifting door assembly is located at the transmission port and is used to seal the transmission port.

2. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 1, characterized in that: The transmission channel assembly includes a lower transmission belt and an upper transmission belt arranged parallel to and directly above the lower transmission belt. A transmission gap is formed between the upper transmission belt and the lower transmission belt, and several baffles are arranged on the outer side of the upper transmission belt along its transmission direction.

3. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 2, characterized in that: The transmission channel assembly also includes a channel cover covering the outside of the lower and upper transmission belts. During the operation of the upper transmission belt, at least one baffle is located in the transmission gap, and the upper side of at least one baffle is in contact with the inner side of the channel cover. The channel cover is provided with an air outlet for supplying fresh air into it to maintain constant pressure in the preparation room.

4. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 2, characterized in that: The lower conveyor belt and the upper conveyor belt are provided with support panels on both sides for supporting them, and the support panels are provided with first mounting panels for fixed installation with the isolation wall.

5. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 1, characterized in that: The lifting door assembly includes a housing, a drive unit, a track structure, and a door cover. The housing is fixedly mounted on the isolation wall via a second mounting panel. The drive unit moves the door cover via the track structure to open and close the transmission port.

6. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 5, characterized in that: The trajectory structure includes a trajectory plate and guide rail shafts. There are two sets of guide rail shafts located on both sides of the door cover. Each set of guide rail shafts has two shafts. The trajectory plate is located inside the outer shell. The trajectory plate has a trajectory groove that slides and cooperates with the guide rail shafts.

7. The constant pressure through-wall continuous transmission system for an intravenous medication preparation center according to claim 5, characterized in that: The driving component is an electric push rod. The fixed end of the electric push rod is hinged to the inner side of the outer casing through a hinge seat, and the output end of the electric push rod is hinged to the door cover.

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