Infusion bag exhaust device
By designing an air venting device for infusion bags, the gas in the infusion bags is automatically vented using a linear reciprocating motion mechanism and a sensing device, which solves the problem of infusion bags not being able to vent automatically, improves the yield rate and reduces safety risks.
Patent Information
- Application Number
- CN202423029347.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing technologies, infusion bags cannot automatically release air during filling, resulting in air bubbles in the bags, low yield, and safety hazards.
An infusion bag venting device is designed, comprising a first motion mechanism for linear reciprocating motion, a fixed frame, a push plate, a sensing device, and a limiting part. The gas in the infusion bag is automatically discharged through the squeezing action of the push plate, and the sensing device controls the squeezing force and distance.
It achieves automatic air release of infusion bags, improves the yield rate, avoids the inefficiency and safety hazards of manual operation, and has a simple structure that can be directly installed on existing production lines.
Smart Images
Figure CN223778733U_ABST
Abstract
Description
Technical Field
[0001] This utility model provides an air venting device for infusion bags, which relates to the technical field of infusion bag production equipment. Background Technology
[0002] When filling small-sized (100 ml-500 ml) tubular IV bags, if the bag clamps cannot be fully closed, the bags are prone to bulging, resulting in defective products and reducing the yield. With large-volume IV bags, gas from the medication tubing can be introduced into the bag during filling, causing air bubbles to form. Since IV bags cannot automatically release gas, manual gas removal is inefficient and poses safety hazards. Utility Model Content
[0003] This utility model provides an air venting device for infusion bags, which solves the technical problem that in the prior art, infusion bags cannot automatically vent air, and the gas in the infusion bag needs to be manually squeezed out, which is inefficient and poses safety hazards.
[0004] This utility model is implemented as follows: it includes a first motion mechanism that performs linear reciprocating motion, a fixed frame, a fixed plate, a push plate, a sensing device, and a limiting part. The first motion mechanism is installed at one end of the fixed frame, and the other end extends in the opposite direction to connect with the production line and is fitted with the fixed plate, which is located inside the production line. The first motion mechanism is located on the opposite side of the fixed plate. The push plate is installed at the forward end of the first motion mechanism, and the push plate and the fixed plate are in a corresponding state. The bottom edge of the push plate and the bottom edge of the fixed plate are on the same horizontal line. The sensing device is installed on the first motion mechanism, and the limiting part is installed at the rear end of the first motion mechanism.
[0005] As a further preferred embodiment, the push plate is a first arc-shaped plate, with the bending direction of the first arc-shaped plate facing the fixed plate.
[0006] As a further preferred embodiment, the fixing plate is a second arc-shaped plate, with the bending direction of the second arc-shaped plate facing the push plate.
[0007] As a further preferred embodiment, a buffer pad is provided at the end of the limiting part that is not connected to the first motion mechanism.
[0008] As a further preferred embodiment, the limiting part is a limiting rod.
[0009] As a further preferred embodiment, the fixing plate is connected to the fixing frame via a set of connecting rods.
[0010] The operating principle of this invention is as follows: The infusion bag venting device is installed below the tubing stopper clamp in the infusion filling production line. After the infusion bag is filled with medication, it enters the infusion stopper insertion process. Before the stopper is inserted, the first motion mechanism pushes the push plate from its initial position toward the infusion bag, contacting the bag to squeeze and vent the gas. The limiting part limits the travel distance of the first motion mechanism, thereby limiting the squeezing force and effectively venting the gas from the infusion bag. After squeezing is completed, the push plate stays for a period of time, and the tubing stopper clamp inserts the stopper into the infusion bag, at which point the push plate returns to its initial position.
[0011] The beneficial effects of this invention are that a sensor is installed on the first motion mechanism to control its running distance, thereby limiting the degree of compression of the infusion bag by the pusher plate and expelling air from the infusion bag. The infusion bag venting device can automatically complete the venting, avoiding manual operation and saving manpower. The infusion bag device has a simple structure and can be directly installed on existing infusion bag production lines. Attached Figure Description
[0012] 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.
[0013] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention, in which the dashed lines indicate the running direction of the push plate;
[0014] Figure 2 yes Figure 1 A schematic diagram of the fixed frame structure.
[0015] The diagram shows: 1-First motion mechanism; 2-Fixed frame; 3-Fixed plate; 4-Push plate; 5-Sensing device; 6-Limiting part; 7-Filling platform; 8-Mounting hole; 9-Guide rail. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] An infusion bag venting device can be installed below the hose stopper clamp on an infusion filling production line. It includes a first motion mechanism that performs linear reciprocating motion, a fixed frame, a fixed plate, a push plate, a sensing device, and a limiting part. The first motion mechanism is mounted at one end of the fixed frame, and the other end extends in the opposite direction, connecting to the production line and mounting the fixed plate. The fixed plate secures the fixed frame to the production line and also secures the infusion bag. The overall shape of the fixed frame is preferably L-shaped. The first motion mechanism includes a forward end and a rear end. The forward end is capable of linear reciprocating motion and pushing forward, while the rear end is stationary. When a rod-type cylinder is used for the first motion mechanism, the forward end is located at the front end of the push rod. The push plate is installed at the forward end of the first motion mechanism, allowing the first motion mechanism to drive the push plate in linear reciprocating motion. The bottom edge of the push plate is at the same horizontal level as the bottom edge of the fixed plate. The sensing device is installed on the first motion mechanism to sense the movement of the limiting part, which is installed at the rear end of the first motion mechanism, and also to limit the movement distance of the first motion mechanism. When the infusion bag venting device is in its initial state, the first motion mechanism is not advanced, and the distance between the push plate and the fixed plate is relatively large. When the sensing device detects the infusion bag, it activates the first motion mechanism. The first motion mechanism pushes the push plate towards the infusion bag, and the push plate contacts the infusion bag, squeezing it. After squeezing, the bag is plugged. The sensing device detects that the plugging is complete and moves the first motion mechanism backward, returning the push plate to its initial position. The sensing device is installed on the first motion mechanism to sense that the limiting part is installed at the rear end of the first motion mechanism, and can also be used to limit the movement distance of the first motion mechanism. After the infusion bag is filled with medication, it enters the infusion plug insertion process. Before the infusion plug is inserted, the first motion mechanism pushes the push plate towards the infusion bag, contacting the bag to squeeze and vent the air. Further, the first motion mechanism can be a rod-type cylinder, a rodless cylinder, or an electric cylinder. If a rodless cylinder or an electric cylinder is selected, a fixed rod can be installed according to the stroke. The cylinder can be a FESTO cylinder, model DPZJ-20-80-PA-KF-S2, which is mounted on the filling platform via two L-shaped brackets. The distance between the push plate and the fixed plate is limited, thereby limiting the extrusion force of the push plate.
[0018] As a further preferred embodiment, the push plate is a first arc-shaped plate, which has an arc shape that conforms to the shape of the bag, and the bending direction of the first arc-shaped push plate faces the fixing plate. The arc of the first arc-shaped push plate is adapted to the infusion bag.
[0019] As a further preferred embodiment, the fixing plate is a second arc-shaped plate, which has an arc shape to fit the shape of the bag, and the bending direction of the second arc-shaped push plate faces the push plate. The arc of the second arc-shaped push plate is matched with the infusion bag.
[0020] As a further preferred embodiment, a buffer pad is provided at the end of the limiting part that is not connected to the first motion mechanism to reduce noise, protect the operation of the equipment, and ensure the quality of the infusion soft bag.
[0021] As a further preferred embodiment, the limiting part can be a limiting rod, a limiting frame, or a buffer, capable of limiting the movement distance of the first moving mechanism. A limiting rod is preferred due to its lowest cost; a screw can be used as the limiting rod, rotated and screwed into the rear end of the first moving mechanism. Example
[0022] See Figure 1 and Figure 2 The infusion bag venting device is installed on the filling platform 7, specifically below the tubing stopper clamp. The infusion bag venting device includes a first motion mechanism 1 that performs linear reciprocating motion, a fixing frame 2, a fixing plate 3, a push plate 4, a sensing device 5, and a limiting part 6. (See reference...) Figure 2The fixing frame 2 is generally L-shaped. The first motion mechanism 1 is mounted on one horizontal end of the fixing frame 2, and the other vertical end is connected to the filling platform 7. To enhance installation stability, two fixing frames 2 can be selected, symmetrically arranged. One side of the vertical end of the fixing frame 2 is connected to the filling platform 7, and the fixing plate 3 is mounted on the other side, meaning the vertical end of the fixing frame 2 is located between the fixing plate 3 and the filling platform 7. The fixing plate 3 is connected to the fixing frame 2 by screws, and the fixing frame 2 is also fixedly connected to the filling platform 7 by screws. The fixing plate 3 serves to fix the soft bag of the infusion bag. The first motion mechanism 1 is a rod-type cylinder, including a forward end 10 and a rear end 11. The forward end 10 is the end that pushes the guide rail 9, allowing it to move forward or return to the starting position. The push plate is mounted on the guide rail 9. The rear end 11 is the fixed end, used to install the limiting part 6, which has a certain length to limit the running distance of the guide rail 9. In this embodiment, the limiting part 6 is a screw. The installation position of the push plate 4 is on the same horizontal plane as the installation position of the fixing plate 3. The sensing device 5 is installed on the first motion mechanism 1. In this embodiment, the sensing device 5 is an IPF_IPF-MR070174_Germany. It is screwed into the rear end 11 of the first motion mechanism 1 to limit the movement distance of the first motion mechanism. The end of the limiting part 6 that is not connected to the first motion mechanism 1 is provided with a buffer pad (not shown) to reduce noise and protect the operation of the equipment, and to ensure the quality of the infusion bag. After the infusion bag is filled with medicine, it enters the process of adding the infusion stopper. Before adding the infusion stopper, the first motion mechanism 1 pushes the push plate 4 to move closer to the infusion bag, touches the infusion bag and squeezes to expel air.
[0023] See Figure 1 The push plate 4 has a predetermined curvature that conforms to the shape of the infusion bag, forming a first arc-shaped plate. The bending direction of the first arc-shaped plate faces the fixing plate 3. The fixing plate 3 also has a predetermined curvature that conforms to the shape of the infusion bag, forming a second arc-shaped plate. The bending direction of the second arc-shaped plate faces the push plate 4.
[0024] The operating principle of this invention is as follows: The infusion bag venting device is installed below the tubing stopper clamp in the infusion filling production line. After the infusion bag is filled with medication, it enters the infusion stopper insertion process. Before the stopper is inserted, the first motion mechanism pushes the push plate from its initial position toward the infusion bag, contacting the bag to squeeze and vent the gas. The limiting part limits the travel distance of the first motion mechanism, thereby limiting the squeezing force and effectively venting the gas from the infusion bag. After squeezing is completed, the push plate stays for a period of time, and the tubing stopper clamp inserts the stopper into the infusion bag, at which point the push plate returns to its initial position.
[0025] The beneficial effects of this invention are that a sensor is installed on the first motion mechanism to control its running distance, thereby limiting the degree of compression of the infusion bag by the pusher plate and expelling air from the infusion bag. The infusion bag venting device can automatically complete the venting, avoiding manual operation and saving manpower. The infusion bag device has a simple structure and can be directly installed on existing infusion bag production lines.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An air venting device for an infusion bag, characterized in that, The device includes a first motion mechanism for linear reciprocating motion, a fixed frame, a fixed plate, a push plate, a sensing device, and a limiting part. The first motion mechanism is mounted on one end of the fixed frame, and the other end extends in the opposite direction to connect with the production line and is mounted on the fixed plate, which is located inside the production line. The first motion mechanism is located on the opposite side of the fixed plate. The push plate is mounted on the forward end of the first motion mechanism, and the push plate and the fixed plate are in a corresponding state. The bottom edge of the push plate and the bottom edge of the fixed plate are on the same horizontal line. The sensing device is mounted on the first motion mechanism, and the limiting part is mounted on the rear end of the first motion mechanism.
2. The infusion bag venting device according to claim 1, characterized in that, The push plate is a first arc-shaped plate, and the bending direction of the first arc-shaped plate faces the fixed plate.
3. The infusion bag venting device according to claim 1, characterized in that, The fixing plate is a second arc-shaped plate, and the bending direction of the second arc-shaped plate faces the push plate.
4. The infusion bag venting device according to claim 1, characterized in that, A buffer pad is provided at the end of the limiting part that is not connected to the first motion mechanism.
5. The infusion bag venting device according to claim 4, characterized in that, The limiting part is a limiting rod.
6. The infusion bag venting device according to claim 1, characterized in that, The fixing plate is connected to the fixing frame via a set of connecting rods.