Fat emulsion amino acid dextrose injection assisted expresser

Abstract

This utility model discloses an auxiliary squeezer for fat emulsion amino acid glucose injection, including a main roller shaft, and a first pressure roller and a second pressure roller parallel to the main roller shaft. The end of the first pressure roller is connected to the end of the main roller shaft via a first connecting rod, and the end of the second pressure roller is connected to the end of the main roller shaft via a second connecting rod. At least one end of the second connecting rod is pivotally connected to the second connecting rod or the main roller shaft. The main roller shaft is provided with a groove matching the thickness of the injection bag, and the groove extends axially to form an elongated structure. This utility model provides an auxiliary squeezer for fat emulsion amino acid glucose injection, which can simulate the action of existing manual squeezing, squeezing the bag from the edge of the injection bag, which is conducive to the rapid peeling of the seal between the chambers. At the same time, the fingers of the medical staff are not squeezed, thus protecting the fingers of the medical staff.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for extruding fat emulsion amino acid glucose injection, specifically an auxiliary extruder for fat emulsion amino acid glucose injection. Background Technology

[0002] Existing bagged fat emulsion amino acid glucose injection solutions use two peelable seals to divide the internal space of the bag into three independent chambers, containing glucose injection, amino acid injection, and fat emulsion injection respectively. Before use, the peelable seals must be opened and the liquids in the three chambers must be mixed evenly. Current technology relies on medical personnel rolling up the corners of the bag to reduce the volume and increase the pressure in each chamber, eventually peeling off the seals and connecting the three chambers. However, this process is not only physically demanding for medical personnel, but their fingers are also subjected to compressive force while rolling the bag, which can easily lead to occupational diseases after prolonged operation.

[0003] Therefore, the industry hopes for assistive devices that can reduce the workload of medical staff in squeezing injection bags, especially reducing the pressure on their fingers.

[0004] Existing technologies also include related extruders, such as the injection extruder with publication number CN211658760U. Although it can achieve automatic extrusion, the overall structure is large, and the extrusion process involves extruding the entire surface of the injection liquid. Under the condition that all chambers in the injection liquid are under pressure at the same time, it is not conducive to peeling off the seal. Excessive extrusion force may pose a risk of bag rupture. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art: to provide an auxiliary squeezer for fat emulsion amino acid glucose injection, which can simulate the action of existing manual squeezing, squeezing the bag from the edge of the injection bag, which is conducive to the rapid peeling of the seal between the chambers, while the fingers of the medical staff will not be squeezed, thus protecting the fingers of the medical staff.

[0006] Therefore, one objective of this utility model is to provide an auxiliary extruder for fat emulsion amino acid glucose injection, comprising a main roller shaft, and a first pressure roller and a second pressure roller parallel to the main roller shaft. The end of the first pressure roller is connected to the end of the main roller shaft via a first connecting rod, and the end of the second pressure roller is connected to the end of the main roller shaft via a second connecting rod. At least one end of the second connecting rod is pivotally connected to the second pressure roller or the main roller shaft. The main roller shaft is provided with a groove matching the thickness of the injection bag, and the groove extends axially to form an elongated structure. The groove can hold the rear end of the injection bag, allowing the rear end of the injection bag to wrap around the main roller shaft. After the volume of the injection bag is reduced to a bulging state, the first and second pressure rollers are pressed onto the bulging part of the injection bag. At this time, the operator only needs to apply downward pressure to the main roller shaft to make the second pressure roller squeeze the injection bag and slowly roll it away from the first pressure roller. Finally, as the pressure inside the bag continues to increase, the various chambers inside the injection bag open up to each other.

[0007] Preferably, both ends of the main roller shaft are provided with a first connecting rod and a second connecting rod, the two ends of the first connecting rod being connected to the main roller shaft and the first pressure roller pivot respectively, and the two ends of the second connecting rod being connected to the main roller shaft and the second pressure roller pivot respectively.

[0008] Preferably, a tension spring is provided between the first and second pressure rollers, with both ends of the spring fixed to the first and second pressure rollers respectively. The tension spring allows the first and second pressure rollers to tend to move towards each other, facilitating their closing together after the injection bag is squeezed.

[0009] Preferably, a torsion spring is provided between the end of the second connecting rod and the end of the main roller shaft to drive the second pressure roller to swing toward the position of the first pressure roller. The torsion spring enables the first and second pressure rollers to have a tendency to move toward each other, which facilitates the first and second pressure rollers to come together after the injection bag is squeezed.

[0010] Preferably, the slot is inclined in the depth direction of the groove on the cross-section of the main roller. The inclined slot allows for greater frictional resistance when the rear end of the injection bag is wound in the opposite direction to the slot.

[0011] Preferably, the inner wall of the slot is provided with an inner friction layer to increase friction.

[0012] Preferably, the card slot is divided into a front slot and a rear slot along the depth direction. The width of the front slot is the same at any position along the depth direction and the front slot has an opening away from the front end of the rear slot. The width of the rear slot is greater than the width of the front slot. The inner wall of the rear slot is connected to the inner wall of the front slot by a slope transition. The rear slot is provided with gel.

[0013] Preferably, the slot opening is connected to the outer wall of the main roller shaft via an arc surface.

[0014] Preferably, the outer wall of the main roller is covered with a rubber layer to increase friction.

[0015] Preferably, two annular handle grooves are radially incised on the outer side wall of the main roller shaft. The two handle grooves are located at the midpoint of the main roller shaft along the axial direction and are spaced apart along the axial direction. The handle grooves can reduce the risk of the first and second pressure rollers pressing on the operator's fingers.

[0016] The above technical solution has the following advantages or beneficial effects: First, it can simulate the existing method of squeezing by hand, applying pressure from the corners of the injection bag to squeeze the bag until multiple chambers are connected. During this process, the operator's fingers do not need to grasp the rear end of the bag, reducing the pressure on the fingers during the bag squeezing process. Second, the overall structure is compact and does not occupy too much space. Third, the inclined setting of the slot allows the injection bag to obtain greater frictional resistance when it is wound on the main roller, reducing the probability of the rear end of the bag coming out of the slot. On the other hand, when the slot opening can provide sufficient frictional resistance, the contact area of ​​the injection bag on the outer wall of the main roller can be smaller, reducing the winding action of the injection bag on the main roller. Finally, a concave handle groove is set on the main roller, and the operator grips in the handle groove, avoiding the risk of the first and second pressure rollers crushing the fingers.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a bagged fat emulsion amino acid glucose injection.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the auxiliary extruder for fat emulsion amino acid glucose injection according to this utility model.

[0020] Figure 3 for Figure 2 A side view diagram.

[0021] Figure 4 for Figure 3 A magnified view of a portion of region "A".

[0022] Figure 5 for Figure 2 A schematic diagram of the structure of the main roller shaft of the auxiliary extruder with a handle groove.

[0023] Figure 6for Figure 5 A schematic diagram of the structure of the main roller shaft.

[0024] Among them, 1. main roller shaft; 2. first pressure roller; 3. second pressure roller; 4. first connecting rod; 5. second connecting rod; 6. slot; 6.1 front groove; 6.2 rear groove; 6.3 inclined surface; 7. tension spring; 8. gel; 9. arc surface; 10. handle groove; 11. injection bag; 11.1 rear end of bag. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The auxiliary extruder for fat emulsion amino acid glucose injection according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] This invention provides an auxiliary extruder for fat emulsion amino acid glucose injection, as shown in the figure. It includes a main roller shaft 1, a first pressure roller 2, and a second pressure roller 3. The main roller shaft 1, the first pressure roller 2, and the second pressure roller 3 are parallel to each other. The end of the first pressure roller 2 is connected to the end of the main roller shaft 1 via a first connecting rod 4. The end of the second pressure roller 3 is connected to the end of the main roller shaft 1 via a second connecting rod 5. At least one end of the second connecting rod 5 is pivotally connected to the second pressure roller 3 or the main roller shaft 1. The main roller shaft 1 has a groove 6 that matches the thickness of the injection bag 11. The groove 6 extends axially to form an elongated structure. In this embodiment, the width of the groove 6 matches the thickness of the rear end 11.1 of the injection bag 11, so that the rear end 11.1 of the injection bag 11 can be inserted into the groove 6. Specifically, the entire edge of the rear end 11.1 of the bag is inserted into the groove 6, or the two corners of the rear end 11.1 of the bag are inserted into the groove 6.

[0028] See Figure 2 and Figure 5 As shown, both ends of the main roller shaft 1 are provided with a first connecting rod 4 and a second connecting rod 5.

[0029] In one preferred embodiment of the above-described configuration, the two ends of the first connecting rod 4 are pivotally connected to the main roller shaft 1 and the first pressure roller 2, respectively, and the two ends of the second connecting rod 5 are pivotally connected to the main roller shaft 1 and the second pressure roller 3, respectively. This allows both the first pressure roller 2 and the second pressure roller 3 to rotate around the axis of the main roller shaft 1.

[0030] In a preferred embodiment of the above-described embodiments, the two ends of the second connecting rod 5 are pivotally connected to the main roller shaft 1 and the second pressure roller 3, respectively. One end of the first connecting rod 4 is fixedly connected to the main roller shaft 1, and the other end is pivotally connected to the first pressure roller 2. In this embodiment, the relative position between the first pressure roller 2 and the main roller shaft 1 is fixed, and the first pressure roller 2 can only rotate around its own axis.

[0031] See Figure 3 As shown, a tension spring 7 is provided between the first pressure roller 2 and the second pressure roller 3, with both ends of the tension spring 7 fixed to the first pressure roller 2 and the second pressure roller 3 respectively. The tension spring 7 can provide a force to bring the first pressure roller 2 and the second pressure roller 3 closer together. After the injection bag 11 is squeezed, the first pressure roller 2 and the second pressure roller 3 can automatically spring back and close together under the tension of the tension spring 7.

[0032] To achieve the goal of bringing the first pressure roller 2 and the second pressure roller 3 closer together, preferably, a torsion spring is provided between the end of the second connecting rod 5 and the end of the main roller shaft 1 to drive the second pressure roller 3 to swing toward the position of the first pressure roller 2. Specifically, as shown in... Figure 3 As shown, the upper end of the second connecting rod 5 and the end of the main roller shaft 1 are rotatably connected via the same rotating shaft. A torsion spring is mounted on this shaft, with its two ends connected to the second connecting rod 5 and the main roller shaft 1, respectively. Thus, the force exerted by the torsion spring on the second connecting rod 5 drives the second connecting rod 5 to swing the second pressure roller 3 around the main roller shaft 1 past the position of the first pressure roller 2. Furthermore, the upper ends of the second connecting rod 5, the upper ends of the first connecting rod 4, and the end of the main roller shaft 1 all rotate around the same rotating shaft. The two ends of the torsion spring on this rotating shaft are connected to the second connecting rod 5 and the first connecting rod 4, or the two ends of the torsion spring are connected to the second connecting rod 5 and the main roller shaft 1, respectively. Thus, the torsion spring drives the second pressure roller 3 and the first pressure roller 2 to have a tendency to move closer together.

[0033] See Figure 3 and Figure 4 As shown, the slot 6 is inclined in the groove depth direction on the cross-section of the main roller shaft 1. This inclined setting means that the straight line in the groove depth direction of the slot 6 is misaligned with the center of the circle on the cross-section of the main roller shaft 1. As a result, when the rear end 11.1 of the injection bag 11 is inserted into the slot 6, the bending angle of the injection bag 11 at the slot opening is different when it is wound in the forward direction and the reverse direction. The operator can choose to wind the injection bag 11 in either direction as needed. Figure 4 When the injection bag 11 is wound clockwise, the pressure applied to the right arc surface 9 of the injection bag 11 is small, therefore the friction is small; conversely, when the injection bag 11 is wound counterclockwise, the pressure applied to the right arc surface 9 is small. Figure 4When the injection bag 11 is wound counterclockwise, the pressure applied to the left arc surface 9 of the injection bag 11 is greater, resulting in greater friction. The operator can choose the winding direction arbitrarily according to the needs of different injection bags 11.

[0034] An improvement based on the above embodiment: the inner wall of the card slot 6 is provided with an inner friction layer for increasing friction. This inner friction layer may be a coating applied to the inner wall of the card slot 6.

[0035] Improvements based on the above embodiments: such as Figure 4 As shown, the slot 6 is divided into a front slot 6.1 and a rear slot 6.2 along the depth direction. The width of the front slot 6.1 is the same at any position along the depth direction, and the front slot 6.1 has an opening at its front end away from the rear slot 6.2. The width of the rear slot 6.2 is greater than the width of the front slot 6.1, and the inner wall of the rear slot is connected to the inner wall of the front slot 6.1 by a slope 6.3. The rear slot 6.2 is provided with gel 8. The gel 8 is a gel-like fluid that can change shape at will. When the rear end 11.1 of the injection bag 11 is inserted into the slot 6, the injection bag 11 squeezes the gel 8 in the rear slot 6.2, and a portion of the gel 8 is squeezed into the gap between the injection bag 11 and the slot 6. The portion of the gel 8 in the gap can increase the friction between the injection bag 11 and the slot 6, preventing the rear end 11.1 of the bag from accidentally coming out when it is pulled back immediately after being inserted into the slot 6. After the squeezing action of the injection bag 11 is completed, the gel 8 will flow out from the gap under its own elastic force and shrink back and gather in the rear slot 6.2. At this time, the operator applies a pulling force in the direction parallel to the slot 6 to pull out the rear end 11.1 of the bag. In this embodiment, through the cooperation of gel 8 and inclined surface 6.3, the rear end 11.1 of the bag can be squeezed out and squeezed into the gap in a short time after it is inserted into the slot 6. The frictional damping force it provides can effectively prevent the rear end 11.1 of the bag from being pulled out quickly. After the gel 8 automatically retracts into the rear groove 6.2, the rear end 11.1 of the bag can be pulled out smoothly.

[0036] Preferably, the slot opening of the card slot 6 is smoothly connected to the outer wall of the main roller shaft 1 via the arc surface 9.

[0037] To increase the friction of the outer wall of the main roller 1, the improvement of this embodiment is that the outer wall of the main roller 1 is covered with a rubber layer (not shown in the figure) for increasing friction.

[0038] See Figure 5 and Figure 6As shown, two annular handle grooves 10 are radially incised on the outer side wall of the main roller shaft 1. The two handle grooves 10 are located at the middle position of the main roller shaft 1 along the axial direction, and the two handle grooves 10 are spaced apart along the axial direction. The two handle grooves 10 prevent the operator's fingers from being pinched when the distance between the main roller shaft 1 and the second pressure roller 3 and the first pressure roller 2 is small.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0040] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be considered as covering all changes and modifications that encompass the true intent and scope of this utility model. Any and all equivalent scope and content within the scope of the claims should be considered as still falling within the intent and scope of this utility model.

Claims

1. A fat emulsion amino acid dextrose injection assisted expresser characterized by: It includes a main roller shaft (1), and a first pressure roller (2) and a second pressure roller (3) parallel to the main roller shaft (1). The end of the first pressure roller (2) is connected to the end of the main roller shaft (1) through a first connecting rod (4). The end of the second pressure roller (3) is connected to the end of the main roller shaft (1) through a second connecting rod (5). At least one end of the second connecting rod (5) is pivotally connected to the second pressure roller (3) or the main roller shaft (1). The main roller shaft (1) is provided with a groove (6) that matches the thickness of the injection bag (11). The groove (6) extends axially to form an elongated structure.

2. The fat emulsion amino acid dextrose injection assisted expressor of claim 1, wherein: The main roller shaft (1) is provided with a first connecting rod (4) and a second connecting rod (5) at both ends. The two ends of the first connecting rod (4) are pivotally connected to the main roller shaft (1) and the first pressure roller (2) respectively, and the two ends of the second connecting rod (5) are pivotally connected to the main roller shaft (1) and the second pressure roller (3) respectively.

3. The fat emulsion amino acid dextrose injection assisted expressor of claim 2, wherein: A tension spring (7) is provided between the first pressure roller (2) and the second pressure roller (3), and the two ends of the tension spring (7) are fixed to the first pressure roller (2) and the second pressure roller (3) respectively.

4. The fat emulsion amino acid dextrose injection assisted expressor of claim 2, wherein: A torsion spring is provided between the end of the second connecting rod (5) and the end of the main roller shaft (1) for driving the second pressure roller (3) to swing toward the position of the first pressure roller (2).

5. The fat emulsion amino acid dextrose injection assisted expressor of claim 2, wherein: The slot (6) is inclined on the cross-section of the main roller (1).

6. The fat emulsion amino acid dextrose injection assisted expressor of claim 5, wherein: The inner wall of the slot (6) is provided with an inner friction layer for increasing friction.

7. The fat emulsion amino acid dextrose injection assisted expressor of claim 6, wherein: The slot (6) is divided into a front slot (6.1) and a rear slot (6.2) along the depth direction. The width of the front slot (6.1) is the same at any position along the depth direction and the front slot (6.1) has a slot opening away from the front end of the rear slot (6.2). The width of the rear slot (6.2) is greater than the width of the front slot (6.1). The inner wall of the rear slot and the inner wall of the front slot (6.1) are connected by a slope (6.3). The rear slot (6.2) is provided with gel (8).

8. The fat emulsion amino acid dextrose injection assisted expressor of claim 1, wherein: The slot (6) is connected to the outer wall of the main roller shaft (1) through the arc surface (9).

9. The fat emulsion amino acid dextrose injection assisted expressor of claim 1, wherein: The outer wall of the main roller (1) is covered with a rubber layer to increase friction.

10. The fat emulsion amino acid dextrose injection auxiliary expressor according to claim 1, characterized in that: Two annular handle grooves (10) are formed radially inward on the outer side wall of the main roller shaft (1). The two handle grooves (10) are located at the middle position of the main roller shaft (1) along the axial direction and are spaced apart along the axial direction.

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