Infusion device

Abstract

The present invention discloses an infusion device comprising multiple storage mechanisms for containing injection liquid. These storage mechanisms are each connected to a common main infusion pipe via branch infusion pipes. An adjustment mechanism is provided between these branch infusion pipes to control the closure or connection of each branch infusion pipe. The adjustment mechanism comprises a base shell and a roller rotatably mounted on the base shell. The branch infusion pipes mounted and positioned in the base shell are arranged along the axial direction of the roller. The roller is provided with multiple rolling portions arranged along its axial direction for correspondingly cooperating with each branch infusion pipe. The rolling portions each include a raised portion that can be rotated to press against the branch infusion pipe to close it, and a recessed portion that releases the pressure on the branch infusion pipe to connect it. The present invention is not only simple in structure and easy to operate, but also has a good anti-drop effect.

Description

Technical Field

[0001] The present invention relates to an infusion device. Background Art

[0002] An infusion device is a device used to deliver injections into the human body. Existing infusion devices typically include components such as an infusion bottle containing liquid medication, an infusion tube, a drip chamber, and a flow clamp. Patients often need to change medications during the infusion process. For example, when the first bottle of injection is completed and the next bottle is switched, the existing injection needs to be removed and replaced with the new one. Furthermore, before switching to the next bottle, the previous injection still remains in the infusion tube. To prevent the two drugs from mixing, the remaining medication in the infusion tube usually needs to be flushed with saline, which is a cumbersome operation. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides an infusion device that can conveniently replace medicine during infusion.

[0004] To achieve the above-mentioned purpose, the present invention provides an infusion device, comprising a plurality of storage mechanisms for containing injection liquid, each of which is converged and connected to the same main infusion pipe through a branch infusion pipe, and an adjustment mechanism for controlling the closure or connection of each branch infusion pipe is arranged between these branch infusion pipes, the adjustment mechanism comprising a base shell, a roller rotatably arranged on the base shell, the branch infusion pipes installed and positioned in the base shell are arranged and distributed along the axial direction of the roller, the roller is provided with a plurality of rolling parts corresponding to each branch infusion pipe along its axial direction, the rolling parts respectively comprising a raised part that can be pressed on the branch infusion pipe by rotation to close it, and a recessed part that releases the pressure on the branch infusion pipe and connects it.

[0005] Furthermore, one of the multiple rolling parts is the first rolling part, and the rest are second rolling parts. Each second rolling part has one convex part and one concave part, which are respectively arranged at circumferential positions opposite to the axis of the roller shaft. The concave parts of all the second rolling parts are at different circumferential positions relative to the axis of the roller shaft, and the concave parts of the second rolling parts arranged in sequence along the axial direction of the roller shaft are also arranged in sequence along the circumference of the roller shaft. There is at least one concave part of the first rolling part, which is staggered along the circumference of the axis of the roller shaft between the concave parts of the second rolling parts. There is at least one convex part of the first rolling part, which is distributed along the circumference of the axis of the roller shaft at positions corresponding to the concave parts of the second rolling parts.

[0006] Furthermore, the convex portion and the concave portion of each rolling portion are connected by a smooth transition of an arc surface.

[0007] Furthermore, an operating knob for driving the roller to rotate is provided at one end of the roller shaft, and the operating knob includes anti-slip grooves.

[0008] Furthermore, a positioning mechanism is provided between the roller shaft and the base shell, and the positioning mechanism includes a plurality of arc-shaped grooves circumferentially distributed between the rotational connection of the roller shaft and the base shell, and elastic beads that cooperate with the arc-shaped grooves for positioning.

[0009] Furthermore, the base shell includes positioning grooves for installing and positioning each branch infusion tube.

[0010] Furthermore, the roller shaft is provided with a mark for displaying the on / off status of each branch infusion tube, and the base shell is provided with a visual window for observing the mark.

[0011] The beneficial effects of the present invention are as follows: by driving the roller shaft to rotate, the raised and recessed portions of each rolling portion cooperate with the corresponding branch infusion tubes to compress, close, or disconnect them, thereby conveniently controlling the on / off status of each branch infusion tube, facilitating the replacement of injection types. Furthermore, the present invention can also be used to control the on / off flow of physiological saline solution to flush out residual medication in the infusion tubes. The present invention is not only simple in structure but also relatively easy to operate, thereby improving the work efficiency of medical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural diagram of an embodiment of the present invention;

[0013] Figure 2 This is a diagram showing the use state of the adjustment mechanism according to an embodiment of the present invention;

[0014] Figure 3 When the first use state is Figure 2 A cross-sectional view of the roller shaft along section line AA;

[0015] Figure 4 When the first use state is Figure 2 Cross-sectional view of the roller shaft along section line BB;

[0016] Figure 5 When the first use state is Figure 2 Cross-sectional view of the roller shaft along the CC section line;

[0017] Figure 6 When the second state is used, Figure 2 A cross-sectional view of the roller shaft along section line AA;

[0018] Figure 7 When the second state is used, Figure 2 Cross-sectional view of the roller shaft along section line BB;

[0019] Figure 8 When the second state is used, Figure 2 Cross-sectional view of the roller shaft along the CC section line;

[0020] Figure 9 For the third use state, the edge Figure 2 A cross-sectional view of the roller shaft along section line AA;

[0021] Figure 10 For the third use state, the edge Figure 2 Cross-sectional view of the roller shaft along section line BB;

[0022] Figure 11 For the third use state, the edge Figure 2 Cross-sectional view of the roller shaft along the CC section line. DETAILED DESCRIPTION

[0023] The embodiment of the infusion device of the present invention is as follows Figure 1-11 As shown: It includes three storage mechanisms 1 for containing injections, and the storage mechanisms 1 can be bottles or bags. These storage mechanisms 1 are each connected to the same main infusion pipe 3 through branch infusion pipes 2. A regulating mechanism 4 for controlling the closure or connection of each branch infusion pipe 2 is provided between these branch infusion pipes 2. The regulating mechanism 4 includes a base shell 41 and a roller 42 rotatably arranged in the base shell 41. Each branch infusion pipe 2 is inserted and positioned in the base shell 41. The branch infusion pipes 2 installed and positioned in the base shell 41 are spaced axially along the roller 42. The roller 42 is arranged and distributed along its axial direction and has three rolling parts corresponding to each branch infusion tube 2. The rolling parts rotate with the roller 42. The rolling parts respectively include a raised part 431 that can be pressed on the branch infusion tube 2 and closed by rotation, and a recessed part 432 that releases the pressure on the branch infusion tube 2 and connects it. As the roller 42 rotates, the recessed part 432 or the raised part 431 of the rolling part can be selectively applied to the branch infusion tube 2, thereby realizing the control of the on-off state of each branch infusion tube 2.

[0024] One of the three rolling parts is the first rolling part 43a, and the other two are the second rolling parts 43b. The first rolling part 43a corresponds to the branch infusion tube 2 for conveying physiological saline, and the second rolling part 43b corresponds to the branch infusion tube 2 for conveying medicine. The raised part 431 and the recessed part 432 of each second rolling part 43b are both one and are respectively arranged at circumferential positions opposite to the axis of the roller shaft 42, that is, when the second rolling part 43b rotates one circle, it can only realize the connection and disconnection of the corresponding branch infusion tube 2 once, and the recessed parts 432 of all the second rolling parts 43b are at different circumferential positions relative to the axis of the roller shaft 42, so that all the second rolling parts 43b can only connect one of the branch infusion tubes 2 corresponding to the second rolling part 43b when rotating, avoiding the connection between different branch infusion tubes 2 The medicine enters the main infusion tube 3 at the same time, and the raised parts 431 / recessed parts 432 of the second rolling parts 43b are evenly distributed along the circumference of the axis of the roller shaft 42. The recessed parts 432 of the second rolling parts 43b arranged in sequence along the axial direction of the roller shaft 42 are also arranged in sequence along the circumference of the axis of the roller shaft 42, so that the branch infusion tube 2 can be opened and closed every time the roller shaft 42 rotates a specific angle, and when the roller shaft 42 rotates in a specific direction, the recessed parts 432 of the second rolling parts 43b arranged in sequence along the axial direction of the roller shaft 42 can act on the corresponding branch infusion tube 2 in sequence, and the branch infusion tube 2 arranged in sequence along the axial direction of the roller shaft 42 can be opened and closed in sequence. With this design, the infusion sequence of the injection can be set, and each operation only needs to drive the roller shaft 42 to rotate in the same direction by a specific angle.

[0025] There is one recessed portion 432 of the first rolling portion 43a and it is distributed circumferentially between the recessed portions 432 of the other two second rolling portions 43b along the axis of the roller shaft 42. In other embodiments, if there are two or more recessed portions 432 of the first rolling portion 43a, they are circumferentially staggered and distributed between the recessed portions 432 of the second rolling portions 43b. This allows the branch infusion tube 2 for transporting saline to be connected whenever the roller shaft 42 rotates to the middle position when switching the injection liquid, and the saline can then flush the main infusion tube 3 to avoid drug residue in the main infusion tube 3.

[0026] There is one raised portion 431 of the first rolling portion 43a and it is distributed along the circumference of the axis of the roller shaft 42 at a position corresponding to the recessed portion 432 of the second rolling portion 43b. The number of the raised portions 431 of the first rolling portion 43a should correspond to the number of the recessed portions 432 of the second rolling portion 43b and they are arranged at corresponding circumferential positions, so that the delivery of physiological saline can be cut off while delivering the drug.

[0027] The raised portion 431 and the recessed portion 432 of each rolling portion are connected by a smooth transition of an arc surface, thereby preventing the branch infusion tube 2 from getting stuck during the rotation process.

[0028] One end of the roller shaft 42 is placed outside the base shell 41 and is provided with an operating knob 44 for driving the roller shaft 42 to rotate. The operating knob 44 includes anti-slip grooves.

[0029] In order to prevent the roller 42 from rotating on its own and to provide an easily identifiable gear sense during its rotation, a positioning mechanism is provided between the roller 42 and the base shell 41. The positioning mechanism includes a plurality of arc-shaped grooves circumferentially distributed between the rotating connection of the roller 42 and the base shell 41, and elastic beads that cooperate with the arc-shaped grooves for positioning. The elastic beads can roll along the surface of the roller 42 and can cooperate with each arc-shaped groove of the roller 42 to be locked and positioned when passing through it, but can be disengaged therefrom when a larger force is released.

[0030] The base shell 41 includes a positioning groove 45 for installing and positioning each branch infusion tube 2.

[0031] The roller shaft 42 is provided with an identification mark for displaying the on / off status of each branch infusion tube 2. The identification mark is provided on the outer circumference of the roller shaft 42. The base shell 41 is provided with a visual window for observing the identification mark. In other embodiments, the base shell 41 is made of a transparent material, which is convenient for observing the internal working status of the base shell 41.

[0032] This embodiment has three working states:

[0033] The first working state is Figure 3-5 As shown, the concave portion 432 of one of the second rolling portions 43b is facing downward, the convex portion 431 of the other second rolling portion 43b is facing downward, and the convex portion 431 of the first rolling portion 43a is facing downward. At this time, the first branch infusion tube 2 from left to right is in a connected state, and the other two branch infusion tubes 2 are in a closed state, that is, the state when injecting the first injection solution.

[0034] The second working state is as follows Figure 6-8 As shown, the second working state is the state after the roller 42 in the first working state is rotated 90 degrees clockwise, the raised parts 431 of the two second rolling parts 43b are both facing downward, and the recessed part 432 of the first rolling part 43a is facing downward. At this time, the third branch infusion tube 2 from left to right is in a connected state, and the other two branch infusion tubes 2 are in a closed state, that is, the state of using physiological saline to clean the main infusion tube 3 after the injection of the first injection is completed.

[0035] The third working state is as follows Figure 9-11As shown, the third working state is the state after the roller 42 in the second working state continues to rotate 90 degrees clockwise. At this time, the second branch infusion tube 2 from left to right is in a connected state, and the other two branch infusion tubes 2 are in a disconnected state, that is, the state when the second injection liquid is injected.

[0036] The present invention has a simple structure and is easy to operate. It only requires rotating the roller 42 to achieve the injection of various drug injections in sequence and the flushing of physiological saline before replacing new injections, which greatly reduces the workload of medical staff and improves efficiency.

[0037] The above embodiment is only one preferred embodiment of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An infusion device, characterized in that: The invention comprises a plurality of storage mechanisms for containing injection liquid, each of which is connected to the same main infusion pipe through a branch infusion pipe, and an adjustment mechanism for controlling the closure or connection of each branch infusion pipe is arranged between the branch infusion pipes, the adjustment mechanism comprises a base shell, a roller shaft rotatably arranged on the base shell, the branch infusion pipes installed and positioned in the base shell are arranged and distributed along the axial direction of the roller shaft, the roller shaft is provided with a plurality of rolling parts corresponding to each branch infusion pipe along its axial direction, the rolling parts respectively include a convex part that can be pressed on the branch infusion pipe by rotation to close it, and a concave part that releases the pressure on the branch infusion pipe and connects it; One is the first rolling part, and the rest are second rolling parts. Each second rolling part has one convex part and one concave part, which are respectively arranged at circumferential positions opposite to the axis of the roller shaft. The concave parts of all second rolling parts are at different circumferential positions relative to the axis of the roller shaft, and the concave parts of the second rolling parts arranged in sequence along the axial direction of the roller shaft are also arranged in sequence along the circumference of the roller shaft. There are at least two concave parts of the first rolling part, which are staggered along the circumference of the axis of the roller shaft between the concave parts of the second rolling parts. There are at least two convex parts of the first rolling part, which are distributed along the circumference of the axis of the roller shaft at positions corresponding to the concave parts of the second rolling parts.

2. The infusion device according to claim 1, characterized in that: The convex part and the concave part of each rolling part are connected by a smooth transition of an arc surface.

3. The infusion device according to claim 1, wherein: One end of the roller shaft is provided with an operating knob for driving the roller shaft to rotate, and the operating knob includes anti-slip grooves.

4. The infusion device according to claim 1, wherein: A positioning mechanism is provided between the roller shaft and the base shell. The positioning mechanism includes arc-shaped grooves circumferentially distributed between the rotating connection of the roller shaft and the base shell, and elastic beads positioned in cooperation with the arc-shaped grooves. There are multiple arc-shaped grooves.

5. The infusion device according to claim 1, characterized in that: The base shell includes positioning grooves for installing and positioning each branch infusion tube.

6. The infusion device according to claim 1, characterized in that: The roller shaft is provided with a mark for displaying the on / off status of each branch infusion tube, and the base shell is provided with a visual window for observing the mark.

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