A placement device for sterilizing pre-filled catheter flushing devices

By designing automated flushing device conveyor belts, pallet conveyor belts, and transfer devices, combined with the use of limiting plates, the problem of low efficiency in manual placement of pre-filled tubing flushing devices has been solved, achieving highly efficient automated placement and disinfection effects.

CN224428842UActive Publication Date: 2026-06-30HENAN TUOREN XINHUI MEDICAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN TUOREN XINHUI MEDICAL TECHNOLOGY CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the existing technology, the placement of pre-filled tubing flushers mainly relies on manual operation, which is inefficient. Furthermore, there are gaps between the flushers on the tray, which affects the efficiency of the sterilizer. In addition, the existing automated equipment has a complex structure and cannot meet actual needs.

Method used

An automated placement device was designed, comprising a rinsing device conveyor belt, a pallet conveyor belt, and a transfer device. The pallet is fixed by a limiting plate, and the rinsing device is precisely transferred and evenly placed by utilizing its own gravity and the drive of the rotating wheel, thereby reducing gaps and improving disinfection efficiency.

Benefits of technology

It enables automated placement of pre-filled catheter flushers, reduces manual operation, improves disinfection efficiency, and allows for nearly twice the number of flushers to be placed in the same space, significantly improving sterilization efficiency.

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Abstract

This utility model discloses a placement device for sterilizing pre-filled tubing irrigators, including an irrigator conveyor belt for conveying the irrigator, a tray conveyor belt for conveying the tray, and a transfer device for moving the irrigator onto the tray; it also includes a limiting plate fastened to the tray to prevent the irrigator from accidentally falling off when the tray rotates; the beneficial effects of this utility model are: through the setting of the irrigator conveyor belt, the tray conveyor belt, and the transfer device, the placement of the irrigator is automated; at the same time, the limiting plate is designed so that when installed on the tray, the tray with the irrigator installed can be flipped over, thereby fastening another tray with an irrigator installed on it, which greatly improves the sterilization efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a placement device for sterilizing a pre-filled catheter flushing device. Background Technology

[0002] Pre-filled catheter flushing devices are common medical devices containing a small amount of saline solution, primarily used for preparing medications before intravenous infusion. They have a wide range of applications, are simple to operate, have few limitations, and minimal impact on the patient's condition and physiological indicators. With their widespread use, they reduce the chance of contamination, lower the risk of infection, offer high safety, prevent needlestick injuries to healthcare workers, and reduce operation time.

[0003] After filling, pre-filled catheter flushing kits require sterilization before they can be sold to healthcare workers. Due to their small size, sterilization currently primarily involves using trays to place multiple pre-filled catheter flushing kits on the trays before placing them in a sterilizer. Currently, the placement of the flushing kits is mainly done manually, which is labor-intensive and inefficient. Furthermore, gaps exist between the flushing kits placed on the trays, affecting the sterilizer's efficiency.

[0004] The patent application number "CN202011137331.1" discloses "a preparation process of a pre-filled catheter flushing device". Although it realizes the automated tray placement and disinfection of the pre-filled catheter flushing device, the process of the equipment is cumbersome and the structure is relatively complex, which cannot be adapted to our company's workshop conditions. Summary of the Invention

[0005] The purpose of this invention is to provide a placement device for sterilizing pre-filled tubing flushers, which can automatically place the pre-filled tubing flushers on a tray, while reducing the gap between flushers and improving disinfection efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A placement device for sterilizing a pre-filled catheter flusher includes a flusher conveyor belt for conveying the flusher, a tray conveyor belt for conveying a tray, and a transfer device for moving the flusher onto the tray.

[0008] It also includes a limiting plate that snaps onto the tray to prevent the flusher from accidentally falling off when the tray rotates.

[0009] Preferably, the flushing conveyor belt includes a vertical conveyor belt, a transition conveyor belt, and a horizontal conveyor belt connected in sequence along the flushing direction, and the end of the horizontal conveyor belt is provided with a positioning baffle.

[0010] Preferably, the flusher conveyor belt further includes a roller that drives the flusher to move on the horizontal conveyor belt.

[0011] Preferably, the transfer device includes a first movable plate, which is connected to a first telescopic rod that drives it to move back and forth above the horizontal conveyor belt and the pallet conveyor belt. A second telescopic rod is also provided on the first movable plate, which is connected to a clamp for clamping / releasing the flusher.

[0012] Preferably, the clamp includes a second movable plate connected to the second telescopic rod, and the second movable plate is provided with a first clamping plate, a second clamping plate, and a third telescopic rod that can drive the two to move synchronously towards each other or relative to each other.

[0013] Preferably, the vertical conveyor belt includes an input section and at least two output sections connected to the input section, and the number of the transition conveyor belt and the horizontal conveyor belt corresponds one-to-one with the number of output sections and are connected to each other.

[0014] Preferably, the vertical conveyor belt further includes diverting blocks that allow the flushers to enter each output section evenly.

[0015] Preferably, a third movable plate is provided below the horizontal conveyor belt to lift the flushing device being conveyed therein, and the third movable plate is connected to a fourth telescopic rod.

[0016] Preferably, the pallet conveyor belt is equipped with a sensor switch for positioning the pallet.

[0017] Preferably, the limiting plate has a bent portion that facilitates engagement with the tray.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The automatic placement of the rinsers is achieved through the installation of the rinser conveyor belt, pallet conveyor belt, and transfer device. At the same time, a limit plate is designed so that when installed on the pallet, the pallet with the rinser installed can be flipped over, and then another pallet with the rinser installed can be fastened on top, which greatly improves the disinfection efficiency.

[0020] 2. The flusher conveyor belt includes a vertical conveyor belt, which allows the flusher to move forward under its own weight. The flusher is driven by a wheel to move along the horizontal conveyor belt, and moves to the transfer position under the action of the positioning baffle, so as to facilitate the transfer to the pallet.

[0021] 3. All telescopic rods of the transfer device are pneumatic cylinders, which operate stably and with low noise, ensuring accurate and error-free repeated grasping and placing operations, and making the equipment operate stably and reliably.

[0022] 4. The diversion baffle ensures that the flusher enters the two output sections evenly, allowing the equipment to operate stably; the inductive switch allows the tray to be accurately positioned in the flusher's place, facilitating the placement of the flusher by the transfer device. Attached Figure Description

[0023] Figure 1 This is a top view of the flusher conveyor belt and pallet conveyor belt in this application;

[0024] Figure 2 This is a top view of the flusher conveyor belt, pallet conveyor belt, and transfer device in this application (the pre-filled conduit flusher is hidden).

[0025] Figure 3 for Figure 2 Sectional view A-A;

[0026] Figure 4 This is a left view of the flushing conveyor belt in this application;

[0027] Figure 5 This is a schematic diagram showing the connection between the rotary wheel and the horizontal conveyor belt;

[0028] Figure 6 This is a schematic diagram of the pre-filled catheter flushing device in this application;

[0029] Figure 7 This is the front view of the pallet;

[0030] Figure 8 This is the front view of the limit plate;

[0031] Figure 9 This is a diagram showing the placement of a pre-filled catheter flushing device during the disinfection process.

[0032] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0033] The present invention will now be further described with reference to the accompanying drawings. Example

[0034] like Figure 6 The diagram shown is a structural schematic of the pre-filled catheter flushing device 9 in this embodiment, including a flushing device body. The two sides of the flushing device body are a smaller insertion end 91 and a larger snap-fit ​​portion 92, respectively. Figure 7The image shows a front view of the tray 2, which has multiple placement holes 21. The size of the insertion end 91 is reduced, so when the pre-filled tubing flusher 9 is installed into the tray 2, it can smoothly enter the placement hole 21 first, and then, under its own gravity, the flusher is brought into the placement hole 21. The locking part 92 is larger and can be locked in the placement hole 21.

[0035] like Figure 1 — Figure 4 As shown in the figure, a placement device for sterilizing pre-filled catheter flushers in this embodiment includes a flusher conveyor belt for conveying flushers, a tray conveyor belt 1 for conveying trays 2, and a transfer device for moving flushers onto trays 2. In order to position the trays 2 and facilitate the transfer device to move the flushers onto the trays 2, a sensor switch (not shown in the figure) is provided on the tray conveyor belt 1. When the trays 2 move to the designated position, the tray conveyor belt 1 stops moving and fixes the trays 2 in that position. Then, the transfer device places the first row of flushers onto the trays 2. Subsequently, the tray conveyor belt 1 drives the trays 2 to move one hole spacing at a time, so that the transfer device places the second row, the third row, and subsequent flushers onto the trays 2 in sequence until the trays 2 are full. At this time, the tray conveyor belt 1 drives the fully loaded trays 2 to move normally to the next station (in this embodiment, the next operation is performed manually). At the same time, the next empty trays 2 are moved to the sensor switch for loading the next batch of flushers. The structure and sensing principle of this inductive switch are existing conventional technologies, and will not be described in detail in this embodiment.

[0036] like Figure 8 The diagram shows the front view of the limiting plate 22. The limiting plate 22 is entirely made of woven (or welded) steel wire, with bent portions 23 on both sides for easy engagement with the pallet 2. The dimensions of the limiting plate 22 match those of the pallet 2. After a fully loaded pallet 2 is manually lifted, the bent portions 23 are first fitted onto the limiting plate 22. Then, the pallet 2 is rotated 180° so that the insertion end 91 of the flushing device faces upwards. The next fully loaded pallet 2 is then placed on top of this pallet 2. A detailed layout diagram is shown below. Figure 9 As shown, the flushing devices placed on the two trays 2 fill the gaps between each other, and the end 91 of the flushing device is in close contact with the inner wall of the other tray 2. The assembled double trays are then placed in a sterilizer for disinfection. The wires of the limiting plate 22 form evenly distributed mesh holes, ensuring that they do not interfere with the disinfection process. This arrangement significantly improves disinfection efficiency (in the same space, nearly twice the number of pre-filled catheter flushing devices 9 can be placed, almost doubling the disinfection efficiency).

[0037] like Figure 2 and Figure 3As shown, the flushing conveyor belt includes a vertical conveyor belt 3, a transition conveyor belt 4, and a horizontal conveyor belt 5 connected sequentially along the flushing movement direction. A positioning baffle (not shown) is located at the end of the horizontal conveyor belt 5. The inlet of the vertical conveyor belt 3 is connected to the flushing production device. Flushing units that have been produced and passed inspection enter the vertical conveyor belt 3 and move forward under their own weight. After passing the transition conveyor belt 4, they enter the horizontal conveyor belt 5. The positioning baffle is located at the end of the horizontal conveyor belt 5. The flushing unit at the very front of the conveyor belt abuts against the positioning baffle, and the flushing units behind it abut against each other sequentially. The positioning baffle positions the flushing units, and the initial position of the transfer device is directly above it, facilitating the clamping of the flushing units.

[0038] like Figure 5 As shown, the flushing conveyor belt also includes a roller 51 that drives the flushing device to move on the horizontal conveyor belt 5. The arrows in the figure represent the moving direction of the flushing device on the horizontal conveyor belt 5 and the rotating direction of the roller 51, respectively. The horizontal conveyor belt 5 includes a first belt plate 52 and a second belt plate 53 arranged in parallel, forming a space between them to accommodate the flushing device. There is a certain height difference between the two ends of the vertical conveyor belt 3 and the transition conveyor belt 4, allowing the flushing device to move to the horizontal conveyor belt 5 under its own gravity. To ensure that the flushing device can move along the horizontal conveyor belt 5 to the positioning baffle at its end, and to ensure that the flushing devices from the positioning baffle backward are tightly fitted together (to facilitate the transfer device placing them in the pallet 2), this embodiment uses the roller 51 to drive the flushing device to move along the horizontal conveyor belt 5. An arc-shaped hole is provided on the side of the second belt plate 53 near the flushing device entry point. The roller 51 is set in the arc-shaped hole and driven to rotate by a motor (not shown in the figure). The outer side of the roller 51 is provided with elastic teeth that extend into the arc-shaped hole and contact the flushing device, driving the flushing device forward when it rotates.

[0039] like Figure 2 and Figure 3 As shown, the transfer device includes a first movable plate 6, which is connected to a first telescopic rod 61 that drives it to move back and forth above the horizontal conveyor belt 5 and the pallet conveyor belt 1. A second telescopic rod 62 is also provided at the lower part of the first movable plate 6, and the second telescopic rod 62 is connected to a clamp for clamping / releasing the rinser. In this embodiment, both the first telescopic rod 61 and the second telescopic rod 62 are cylinders. To ensure smooth and unbiased movement of the first movable plate 6 and the clamp during their extension and retraction, a corresponding guiding device (such as a guide rail) can be provided for the first movable plate 6 and the clamp. This device is a conventional arrangement and will not be described in detail in this embodiment.

[0040] The clamp includes a second movable plate 7 connected to the second telescopic rod 62. The second movable plate 7 is provided with a first clamping plate 71, a second clamping plate 72, and a third telescopic rod 73 that can drive the two to move synchronously towards each other or relative to each other. In this embodiment, the third telescopic rod 73 is a double-headed cylinder, with its two telescopic heads connected to the first clamping plate 71 and the second clamping plate 72 respectively. The two telescopic heads extend or retract synchronously, so that the first clamping plate 71 and the second clamping plate 72 can clamp the rinser or lower it.

[0041] like Figure 3 As shown, the vertical conveyor belt 3 includes an input section 31 and two output sections 32 connected to the input section 31. The transition conveyor belt 4 and the horizontal conveyor belt 5 are also provided in two locations, each connected to its corresponding output section 32. The first clamping plate 71, the second clamping plate 72, and the third telescopic rod 73 are also provided in two locations below the second movable plate 7, each located above the two horizontal conveyor belts 5. In this way, two rows of washers can be placed on the pallet 2 in a single operation, improving placement efficiency.

[0042] The vertical conveyor belt 3 also includes a diversion block 34 that ensures the flushers enter the two output sections 32 evenly. In this embodiment, the diversion block 34 is connected to the rotating part 33 via a connecting rod. The rotating part 33 can reciprocate within a limited angle and pause for a period of time when it reaches its limit position. At this time, the diversion block 34 is located at the inlet of one of the output sections 32, and the flushers flowing out from the input section 31 cannot enter this output section 32, but can only enter the other output section 32. This ensures that the flushers enter the two output sections 32 evenly, facilitating the gripping of the transfer device. Figure 3 The dashed line indicates the position of the shunt block 34 when it enters the right output section 32.

[0043] In other embodiments, the number of output sections 32 can be set independently based on the production speed of the flushers and the placement speed of the placement device, such as three or four sections. In this case, three or four rows of flushers can be placed at a time, further improving placement efficiency if flushers are available. In this case, a flow divider block needs to be installed in each output section. The flow divider block can be extended into the output section (blocking flushers from entering) or moved out of the output section (allowing flushers to enter) under the action of a cylinder. At the same time, only one flow divider block in the output section is moved out, while the other flow divider blocks extend into their respective output sections, achieving uniform distribution of flushers in each output section.

[0044] like Figure 3 and Figure 4As shown, to facilitate the gripping of the washer, a third movable plate 8 is provided below the horizontal conveyor belt 5 near the positioning baffle. The third movable plate 8 is connected to a fourth telescopic rod 81. The fourth telescopic rod 81 is a cylinder, which can drive the third movable plate 8 to move up and down when it extends or retracts. When the third movable plate 8 moves up, it can lift the washer conveyed by the horizontal conveyor belt 5, making it convenient for the transfer device to grip. When the third movable plate 8 moves down, the washer can continue to move forward, ready for the next gripping.

[0045] When this device is in use, the qualified flusher moves along the vertical conveyor belt 3, the transition conveyor belt 4, and the horizontal conveyor belt 5 until it reaches below the transfer device (above the third movable plate 8). At this point, the third movable plate 8 moves upward, lifting the flusher, and the second telescopic rod 62 extends, causing the second movable plate 7 to move downward. Simultaneously, the two telescopic heads of the third telescopic rod 73 extend, causing the first clamping plate 71 and the second clamping plate 72 to move relative to each other until their top surfaces are below the lower surface of the flusher. Afterward, the two telescopic heads of the third telescopic rod 73 retract simultaneously. The first clamping plate 71 and the second clamping plate 72 move towards each other, clamping the snap-fit ​​part 92 of the rinser; the second telescopic rod 62 retracts, causing the second movable plate 7 to move upward, and the first telescopic rod 61 retracts, causing the first movable plate 6 to move the second telescopic rod 62 and the second movable plate 7 above the support plate 2; the second movable plate 7 moves downward, causing the lower extension end 91 of the rinser to enter the placement hole 21 of the support plate 2, and then the first clamping plate 71 and the second clamping plate 72 move relative to each other, releasing the rinser, which enters the support plate 2 under its own gravity. Then the first telescopic rod 61 extends, causing the first movable plate 6 to return to its original position, ready for the next round of clamping.

[0046] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0048] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A placement device for sterilizing a pre-filled catheter flushing device, characterized in that, Includes a flusher conveyor belt for conveying flushers, a pallet conveyor belt for conveying pallets, and a transfer device for moving flushers onto pallets; It also includes a limiting plate that snaps onto the tray to prevent the flusher from accidentally falling off when the tray rotates.

2. The placement device for sterilizing a pre-filled catheter flushing device according to claim 1, characterized in that, The flushing device conveyor belt includes a vertical conveyor belt, a transition conveyor belt, and a horizontal conveyor belt connected in sequence along the flushing device's moving direction, and a positioning baffle is provided at the end of the horizontal conveyor belt.

3. The placement device for sterilizing a pre-filled catheter flushing device according to claim 2, characterized in that, The flusher conveyor belt also includes a roller that drives the flusher to move on the horizontal conveyor belt.

4. The placement device for sterilizing a pre-filled catheter flushing device according to claim 2, characterized in that, The transfer device includes a first movable plate, which is connected to a first telescopic rod that drives it to move back and forth above the horizontal conveyor belt and the pallet conveyor belt. A second telescopic rod is also provided on the first movable plate, which is connected to a clamp for clamping / releasing the flusher.

5. The placement device for sterilizing a pre-filled catheter flushing device according to claim 4, characterized in that, The clamp includes a second movable plate connected to a second telescopic rod. The second movable plate is provided with a first clamping plate, a second clamping plate, and a third telescopic rod that can drive the two to move synchronously towards each other or relative to each other.

6. The placement device for sterilizing a pre-filled catheter flushing device according to claim 4, characterized in that, The vertical conveyor belt includes an input section and at least two output sections connected to the input section. The number of transition conveyor belts and horizontal conveyor belts corresponds one-to-one with the number of output sections and they are connected to each other.

7. The placement device for sterilizing a pre-filled catheter flushing device according to claim 6, characterized in that, The vertical conveyor belt also includes diversion blocks that allow the flushers to enter each output section evenly.

8. The placement device for sterilizing a pre-filled catheter flushing device according to claim 2, characterized in that, Below the horizontal conveyor belt is a third movable plate that can lift the flushing device being conveyed therein, and the third movable plate is connected to a fourth telescopic rod.

9. The placement device for sterilizing a pre-filled catheter flushing device according to claim 1, characterized in that, The pallet conveyor belt is equipped with a sensor switch for positioning the pallet.

10. The placement device for sterilizing a pre-filled catheter flushing device according to claim 1, characterized in that, The limiting plate has a bent portion that facilitates engagement with the tray.