Cartridge type liquid taking device for plasma sterilizer

Abstract

The utility model relates to the technical field of sterilization equipment, in particular to a cartridge type liquid taking device for a plasma sterilizer, which aims to solve the technical problems that the device in the prior art is large in size and lacks cartridge recognition and positioning, and specifically comprises a bottom plate, a first sliding rail is fixedly arranged on the bottom plate along the length direction, and a second sliding rail is arranged on the bottom plate. A moving seat is arranged above the first sliding rail in parallel; the clamping box can move left and right through the first sliding rail and the moving seat, the needle plate can move front and back through the second sliding rail and the moving plate, the whole structure is simple, and the occupied space is small; by arranging the card reader and the electronic tag, the device can read information such as the shelf life of the cartridge and the remaining number of hydrogen peroxide capsules, and can identify the used cartridge, so that the safety and traceability of the device are enhanced, and misuse of the cartridge is effectively prevented; in addition, by arranging a positioning mechanism composed of a pressing rod, a rolling wheel and other components, the loading and unloading process of the cartridge is simplified, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization equipment, in particular to a cassette type liquid taking device for a plasma sterilizer. Background Art

[0002] In the medical field, disinfection and sterilization of medical devices are particularly important. There are two main sterilization methods: high-temperature sterilization and low-temperature sterilization. Medical devices that are sensitive to moisture and heat mainly use low-temperature sterilization, such as medical devices containing polymer materials, plastic materials, etc. that are not resistant to high temperatures.

[0003] A common low-temperature sterilization equipment on the market is the hydrogen peroxide plasma sterilizer, which needs to add hydrogen peroxide solution for sterilization when in use. There are two main injection methods: bottle injection and cassette injection. Bottle injection has been gradually eliminated due to inaccurate injection quantity. The cassette injection devices currently used generally have the following shortcomings: the device structure is complex and occupies a large space, which ultimately leads to a large size of the sterilization equipment; at the same time, the device cannot read the cassette information and cannot identify the cassette that has been used, which can easily lead to the misuse of the cassette; in addition, the device lacks a simple positioning mechanism for the cassette. The cassette is fixed to the device by bolts, and it needs to be repeatedly twisted every time it is loaded and unloaded, which is cumbersome to operate.

[0004] In summary, how to provide a cassette-type liquid extraction device with a compact structure, information identification, and simple positioning has become a technical problem that needs to be urgently solved in the prior art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a cassette type liquid taking device for a plasma sterilizer in view of the deficiencies of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cassette type liquid taking device for a plasma sterilizer, characterized by comprising: comprising a bottom plate, a first slide rail is fixedly mounted on the bottom plate along the length direction, a moving seat is arranged parallel to the first slide rail, a first slider is arranged between the moving seat and the first slide rail, the moving seat is slidably connected to the first slide rail through the first slider, and a first driving mechanism for driving the first slider is arranged on the bottom plate;

[0008] A strip-shaped plug-in slot is provided in the movable seat along the length direction of the bottom plate, a cartridge is provided in the plug-in slot, one end of the plug-in slot extends to the end surface of the movable seat to form an insertion port of the cartridge, a side surface of the movable seat is provided with a liquid extraction port leading to the plug-in slot, a plurality of capsules containing sterilizing solution are arranged side by side in the cartridge along the length direction of the bottom plate, and a needle hole is provided on a side of each capsule facing the liquid extraction port;

[0009] A second slide rail is fixedly mounted on a bottom plate at one side of the first slide rail in the width direction, a movable plate is arranged parallel to the second slide rail, a second slider is arranged between the movable plate and the second slide rail, the movable plate is slidably connected to the second slide rail through the second slider, and a second driving mechanism for driving the second slider is arranged on the bottom plate;

[0010] A needle holder is fixedly mounted on the upper surface of the movable plate, and a liquid collection needle facing the liquid collection port is fixedly mounted on the needle holder, and the liquid collection needle is used to cooperate with the needle entry hole on the capsule to extract the sterilizing solution in the capsule;

[0011] A card reader is fixedly arranged on one side of the needle seat, and an information identification area matched with the card reader is arranged at the end of the cartridge, wherein an electronic tag containing cartridge information is arranged in the information identification area.

[0012] The technical problem to be solved by the utility model can be further achieved through the following steps: the first driving mechanism includes a lead screw rotatably arranged between the first slide rail and the movable seat and parallel to the first slide rail; the first slider is cooperatively arranged on the lead screw; a first motor for driving the lead screw to rotate is fixedly mounted on a base plate at one end of the lead screw; the first motor is a stepping motor.

[0013] The technical problem to be solved by the utility model can be further achieved through the following steps: the second driving mechanism includes a rack fixedly arranged on the upper surface of the movable plate and parallel to the second slide rail, a driving gear is provided above the rack, and a second motor for driving the driving gear to rotate is fixedly installed on the bottom plate on one side of the movable plate, and the second motor is a DC motor.

[0014] The technical problem to be solved by the utility model can be further achieved by the following steps: two first micro switches on the left and right are fixedly provided on the bottom plate of the first slide rail on the side away from the second slide rail, and a first trigger block matched with the first micro switch is fixedly provided on the movable seat. When the first trigger block cooperates with the first micro switch on the right, the liquid extraction needle on the needle seat is just aligned with the needle entry hole on the first capsule in the cartridge.

[0015] The technical problem to be solved by the utility model can be further achieved through the following steps: two second micro switches are fixedly provided on the bottom plate on one side of the second slide rail, and a second trigger block matching the second micro switches is fixedly provided on the movable plate.

[0016] The technical problem to be solved by the utility model can be further achieved through the following steps: a plurality of rollers are arranged side by side on the bottom surface of the plug-in slot along the length direction of the bottom plate, a positioning mechanism is arranged on the top surface of the plug-in slot, and a positioning slot matching the positioning mechanism is arranged on the top of the cassette.

[0017] The technical problem to be solved by the present utility model can be further realized through the following steps. The positioning mechanism includes a positioning chamber arranged above the top surface of the insertion slot. A pressure rod is arranged in the positioning chamber. A rotating shaft is arranged in the middle of the pressure rod. A jacking spring cooperating with the bottom surface of the positioning chamber is arranged at one end of the pressure rod. A roller is rotatably connected to the other end of the pressure rod. An opening leading to the insertion slot is arranged on one side of the bottom surface of the positioning chamber. The roller is arranged at the opening.

[0018] The technical problem to be solved by the present utility model can be further realized through the following steps. There are two liquid extraction needles in total, one above the other, and two liquid extraction ports on the capsule are also correspondingly arranged, one above the other.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the first slide rail and the moving seat, the left - right movement of the cartridge is realized. By setting the second slide rail and the moving plate, the front - back movement of the needle plate is realized. The overall structure is simple and occupies little space. By setting the card reader and the electronic tag, the device can read information such as the shelf life of the cartridge and the remaining quantity of hydrogen peroxide capsules, and can identify the used cartridges, enhancing the safety and traceability of the equipment and effectively preventing the misuse of cartridges. In addition, by setting the positioning mechanism composed of components such as a pressure rod and a roller, when the end of the cartridge fits against the insertion slot, the pressure rod naturally presses the roller into the positioning slot of the cartridge under the action of the jacking spring to form positioning, simplifying the loading and unloading process of the cartridge and improving the use convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the schematic structural diagram a of the present utility model;

[0021] Figure 2 It is the schematic structural diagram b of the present utility model;

[0022] Figure 3 It is the top - view schematic diagram of the present utility model;

[0023] Figure 4 It is the schematic structural diagram of the moving seat of the present utility model;

[0024] Figure 5 It is the structural cross - sectional view of the moving seat of the present utility model;

[0025] Figure 6 It is the schematic structural diagram of the cartridge of the present utility model;

[0026] In the figure: 1 - bottom plate; 2 - first slide rail; 3 - moving seat; 4 - first slider; 5 - insertion slot; 6 - cartridge; 7 - insertion opening; 8 - liquid extraction port; 9 - capsule; 10 - needle insertion hole; 11 - second slide rail; 12 - moving plate; 13 - second slider; 14 - needle holder; 15 - liquid extraction needle; 16 - card reader; 17 - electronic tag; 18 - lead screw; 19 - first motor; 20 - drive plate; 21 - rack; 22 - driving gear; 23 - second motor; 24 - first microswitch; 25 - first trigger block; 26 - second microswitch; 27 - second trigger block; 28 - roller; 29 - positioning slot; 30 - positioning chamber; 31 - pressing rod; 32 - rotating shaft; 33 - lifting spring; 34 - roller. Detailed implementation manners

[0027] The following further describes the specific technical solutions of the present invention so that those skilled in the art can further understand the present invention without constituting a limitation to its rights.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0029] Please refer to Figures 1-6 , a cartridge-type liquid extraction device for a plasma sterilizer, including a bottom plate 1, on which a first slide rail 2 is fixedly installed along the length direction ( Figure 1 the left-right direction in

[0030] the figure), a moving seat 3 is arranged in parallel above the first slide rail 2, a first slider 4 is arranged between the moving seat 3 and the first slide rail 2, the moving seat 3 is slidably connected to the first slide rail 2 through the first slider 4, and a first driving mechanism for driving the first slider 4 is installed on the bottom plate 1. The left end of the first slide rail 2 is the starting end of the liquid extraction of the device, and the right end of the first slide rail 2 is the ending end of the liquid extraction of the device. Figure 1 A strip-shaped insertion slot 5 is opened in the moving seat 3 along the length direction of the bottom plate 1 ( Figure 1 the left-right direction in Figure 1 the figure), a cartridge 6 is fitted in the insertion slot 5, one end of the insertion slot 5 extends to the end face of the moving seat 3 ( Figure 1A number of capsules 9 filled with a sterilizing solution (hydrogen peroxide is used in this embodiment) are arranged side by side in the left - right direction (in the present embodiment), and an injection hole 10 is provided on one side of each capsule 9 facing the liquid extraction port 8.

[0031] On one side of the first slide rail 2 ( Figure 1 at the rear side in the present embodiment) on the bottom plate 1 along the width direction ( Figure 1 the front - rear direction in the present embodiment), a second slide rail 11 is fixedly installed. Above the second slide rail 11, a moving plate 12 is arranged in parallel. A second slider 13 is arranged between the moving plate 12 and the second slide rail 11. The moving plate 12 is slidably connected to the second slide rail 11 through the second slider 13, and a second driving mechanism for driving the second slider 13 is installed on the bottom plate 1.

[0032] The upper surface of the moving plate 12 is fixedly equipped with a needle holder 14. A liquid extraction needle 15 facing the liquid extraction port 8 is fixedly arranged on the needle holder 14. The liquid extraction needle 15 is used to cooperate with the injection hole 10 on the capsule 9 to extract the sterilizing solution in the capsule 9. Please refer to Figure 1 , there are two liquid extraction needles 15 in total, one above the other, and the liquid extraction ports 8 on the capsule 9 are also correspondingly provided with two, one above the other. In this way, the liquid extraction efficiency can be improved, and the liquid in the capsule 9 can be sucked more cleanly.

[0033] On one side of the needle holder 14 ( Figure 1 the right side in the present embodiment) is fixedly equipped with a card reader 16. At the end of the cartridge 6 ( Figure 1 the right end in the present embodiment), there is an information recognition area that cooperates with the card reader 16. An electronic tag 17 containing the information of the cartridge 6 is arranged in the information recognition area. The card reader 16 is used to read information such as the shelf life of the cartridge 6 and the remaining quantity of the hydrogen peroxide capsules 9, and can identify the used cartridge 6, effectively preventing the misuse of the cartridge 6.

[0034] The first driving mechanism includes a lead screw 18 rotatably arranged between the first slide rail 2 and the moving seat 3 and parallel to the first slide rail 2. The first slider 4 is arranged in cooperation with the lead screw 18. On one end of the lead screw 18 ( Figure 1 the left end in the present embodiment) on the bottom plate 1, a first motor 19 for driving its rotation is fixedly installed. The first motor 19 is a stepping motor, and a driving plate 20 cooperating with it is fixedly installed on the bottom plate 1 in front of the first motor 19. The first slider 4 and the lead screw 18 form a lead screw - nut mechanism. When the lead screw 18 rotates, the first slider 4 can slide left and right along the first slide rail 2, thereby driving the moving seat 3 and the cartridge 6 to move.

[0035] The second driving mechanism includes a rack 21 fixedly arranged on the upper surface of the moving plate 12 and parallel to the second slide rail 11. Above the rack 21, a driving gear 22 is arranged in cooperation. On one side of the moving plate 12 ( Figure 1On the bottom plate 1 (on the left side in []) is fixedly installed a second motor 23 for driving the rotation of the driving gear 22, and the second motor 23 is a DC motor.

[0036] Please refer to Figures 2-3 , on the bottom plate 1 on the side of the first slide rail 2 away from the second slide rail 11, two first micro switches 24 are fixedly arranged on the left and right. On the moving seat 3, a first trigger block 25 is fixedly arranged to cooperate with the first micro switch 24. When the first trigger block 25 cooperates with the right first micro switch 24, the liquid extraction needle 15 on the needle seat 14 just aligns with the needle insertion hole 10 on the first capsule 9 in the cartridge 6, and at the same time, the identification unit of the card reader 16 just faces the electronic tag 17 on the cartridge 6. "The first capsule" refers to the capsule on the cartridge 6 that can move to the position of the liquid extraction needle 15 first, that is Figure 1 the rightmost capsule in [].

[0037] Please refer to Figure 1 , on the bottom plate 1 on one side of the second slide rail 11, two second micro switches 26 are fixedly arranged in the front and back. On the moving plate 12, a second trigger block 27 is fixedly arranged to cooperate with the second micro switch 26.

[0038] Please refer to Figure 4 , 6 , a plurality of rollers 28 are arranged side by side along the length direction of the bottom plate 1 on the bottom surface of the insertion slot 5. A positioning mechanism is arranged on the top surface of the insertion slot 5, and a positioning groove 29 is arranged on the top of the cartridge 6 to cooperate with the positioning mechanism.

[0039] Please refer to Figure 5 , the positioning mechanism includes a positioning chamber 30 arranged in the moving seat 3 above the top surface of the insertion slot 5. A pressure rod 31 is arranged in the positioning chamber 30. A rotating shaft 32 is arranged in the middle of the pressure rod 31. A jacking spring 33 is arranged at one end of the pressure rod 31 to cooperate with the bottom surface of the positioning chamber 30. A roller 34 is rotatably connected to the other end of the pressure rod 31. An opening leading to the insertion slot 5 is arranged on one side of the bottom surface of the positioning chamber 30. The roller 34 is arranged at the opening, and the size of the roller 34 corresponds to the positioning groove 29 of the cartridge 6. When the cartridge 6 is inserted to the deepest part of the insertion slot 5, the pressure rod 31 naturally presses the roller 34 into the positioning groove 29 of the cartridge 6 under the action of the jacking spring 33 to form a simple positioning; when removing the cartridge 6, only need to hold the end of the cartridge 6 and apply a little force, then the cartridge 6 can be quickly pulled out.

[0040] Working principle: The utility model is a cassette type liquid taking device for plasma sterilizer. When in use, the operator inserts the cassette 6 containing the sterilizing solution capsule 9 into the insertion slot 5 in the movable seat 3 through the insertion port 7 until the cassette 6 is completely in place. During the process, the roller 28 at the bottom of the insertion slot 5 assists the cassette 6 to slide in smoothly and reduce friction. At the same time, the pressure rod 31 in the positioning mechanism is automatically pressed into the positioning slot 29 of the cassette 6 through the roller 34 under the action of the lifting spring 33, so as to achieve simple and stable positioning.

[0041] After starting the device, the first motor 19 first drives the movable seat 3 to move horizontally to the right. When the first trigger block 25 touches the first micro switch 24 on the right, the movable seat 3 stops moving. At this time, the card reader 16 starts to work and reads the information in the electronic tag 17 on the cassette 6, including the shelf life, the remaining number of capsules, etc. The system verifies whether the cassette is available and the number of remaining capsules. If the verification result shows that the cassette has expired or has been completely used, stop further operation and remind the operator through light, sound, etc. If the cassette is in good condition, continue to the next step.

[0042] After confirming that the cassette is in good condition, the second motor 23 starts, driving the movable plate 12 to slide forward along the second slide rail 11, driving the needle seat 14 and the liquid extraction needle 15 to approach the cassette 6. When the second trigger block 27 touches the second micro switch 26 on the front side, the liquid extraction needle 15 pierces forward into the needle hole 10 of the first capsule 9 and starts to extract the sterilizing solution. After the extraction is completed, the second motor 23 drives in the reverse direction to return the liquid extraction needle 15 to its initial position. At the same time, the first motor 19 drives the movable seat 3 to move slightly to the right by a fixed distance, so that the needle hole 10 of the next capsule 9 is aligned with the liquid extraction needle 15, ready for the next extraction. This process is repeated until the sterilizing solution in all capsules 9 has been extracted.

[0043] When the sterilizing solution in all capsules 9 is extracted, the user can easily hold the end of the cartridge 6 and apply a little force, and through the release of the simple positioning mechanism, the cartridge 6 can be quickly pulled out from the insertion slot 5. If the sterilization operation needs to be continued, the user can repeat the above steps, install a new cartridge and perform the liquid extraction operation.

[0044] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A cassette-type liquid taking device for a plasma sterilizer, characterized in that: It comprises a bottom plate, a first slide rail is fixedly mounted on the bottom plate along the length direction, a moving seat is arranged above the first slide rail in parallel, a first slider is arranged between the moving seat and the first slide rail, the moving seat is slidably connected to the first slide rail through the first slider, and a first driving mechanism for driving the first slider is arranged on the bottom plate; A strip-shaped plug-in slot is provided in the movable seat along the length direction of the bottom plate, a cartridge is provided in the plug-in slot, one end of the plug-in slot extends to the end surface of the movable seat to form an insertion port of the cartridge, a side surface of the movable seat is provided with a liquid extraction port leading to the plug-in slot, a plurality of capsules containing sterilizing solution are arranged side by side in the cartridge along the length direction of the bottom plate, and a needle hole is provided on a side of each capsule facing the liquid extraction port; A second slide rail is fixedly mounted on a bottom plate at one side of the first slide rail in the width direction, a movable plate is arranged parallel to the second slide rail, a second slider is arranged between the movable plate and the second slide rail, the movable plate is slidably connected to the second slide rail through the second slider, and a second driving mechanism for driving the second slider is arranged on the bottom plate; A needle holder is fixedly mounted on the upper surface of the movable plate, and a liquid collection needle facing the liquid collection port is fixedly mounted on the needle holder, and the liquid collection needle is used to cooperate with the needle entry hole on the capsule to extract the sterilizing solution in the capsule; A card reader is fixedly arranged on one side of the needle seat, and an information identification area matched with the card reader is arranged at the end of the cartridge, wherein an electronic tag containing cartridge information is arranged in the information identification area.

2. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: The first driving mechanism includes a lead screw rotatably arranged between the first slide rail and the moving seat and parallel to the first slide rail. The first slider is cooperatively arranged on the lead screw. A first motor for driving the lead screw to rotate is fixedly mounted on a base plate at one end of the lead screw. The first motor is a stepping motor.

3. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: The second driving mechanism includes a rack fixedly arranged on the upper surface of the movable plate and parallel to the second slide rail, a driving gear is arranged above the rack, and a second motor for driving the driving gear to rotate is fixedly installed on the bottom plate on one side of the movable plate, and the second motor is a DC motor.

4. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: Two first micro switches on the left and right are fixedly provided on the bottom plate of the first slide rail on the side away from the second slide rail, and a first trigger block matched with the first micro switch is fixedly provided on the movable seat. When the first trigger block matches with the first micro switch on the right, the liquid extraction needle on the needle seat is just aligned with the needle entry hole on the first capsule in the cartridge.

5. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: Two second micro switches, front and rear, are fixedly provided on the bottom plate at one side of the second slide rail, and a second trigger block matched with the second micro switches is fixedly provided on the moving plate.

6. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: The bottom surface of the plug-in slot is provided with a plurality of rollers arranged side by side along the length direction of the bottom plate, the top surface of the plug-in slot is provided with a positioning mechanism, and the top of the cassette is provided with a positioning slot matched with the positioning mechanism.

7. The cassette type liquid taking device for plasma sterilizer according to claim 6, characterized in that: The positioning mechanism includes a positioning chamber arranged above the top surface of the plug-in slot, a pressure rod is arranged in the positioning chamber, a rotating shaft is arranged in the middle of the pressure rod, a lifting spring matching the bottom surface of the positioning chamber is arranged at one end of the pressure rod, a roller is rotatably connected to the other end of the pressure rod, an opening leading to the plug-in slot is arranged on one side of the bottom surface of the positioning chamber, and the roller is arranged at the opening.

8. The cassette type liquid taking device for plasma sterilizer according to claim 1, characterized in that: The liquid collection needles are provided with two upper and lower ones, and the liquid collection ports on the capsule are also provided with two upper and lower ones correspondingly.

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