Multi-drug infusion device for anesthesiology

Abstract

To provide an injection pump that meets the requirements for multi-drug mixture injection. [Solution] An embodiment of the multi-drug mixing and infusion device for anesthesiology comprises a support frame, a rear cover for the main body, and a front cover for the main body. Two drive mechanisms are attached to the support frame, gripping and propulsion mechanisms are attached to the ends of the drive mechanisms, a push-down position limiting mechanism is installed inside the front cover for the main body, a push-down rod is slidably connected to the push-down position limiting mechanism, and an expansion mechanism is used to increase the number of syringes to be processed. With the installation of the expansion mechanism, drug injection operations can be performed on four syringes simultaneously, and when multi-drug mixing and infusion is required, the user can selectively assemble the first expansion seat and the second expansion seat on the bottom and back of the rear cover for the main body according to the actual injection requirements. This flexible combination design improves the practicality of the device, eliminates the need for the user to change syringes, and improves the accuracy and ease of drug injection of the device.

Description

Technical Field

[0005] ,

[0001] The present invention relates to the technical field of anesthetic agent injection, and particularly to a multi-agent mixed injection device for anesthesiology.

Background Art

[0002] In the case of drug injection by anesthesiology, an anesthesiologist directly injects with a syringe or assists the injection with an injection pump. When multiple anesthetic agents need to be mixed and injected during surgery, it is common to adopt the injection process by an injection pump. The injection pump is an electromechanical device that can precisely control the liquid delivery speed and dosage of the drug solution in the syringe. By pushing the piston of the syringe forward with a precise stepping motor, continuous and uniform micro-dose drug solution injection is achieved.

[0003] Currently, a normal injection pump can perform an injection operation on a single or two syringes at a time. However, when there are many types of drugs to be mixed and injected, the conventional injection pump cannot meet the requirements. Therefore, during surgery, the anesthesiologist needs to replace different syringes for the injection pump. When replacing the syringe, the anesthesiologist needs to remove the existing syringe from the injection pump and remove the drug liquid delivery pipeline connected to the original syringe. In the above operations, not only is drug leakage likely to occur, but in the operation of the anesthesiologist reconnecting a new syringe to the drug liquid delivery pipeline, there is a risk of pushing air into the drug liquid delivery pipeline, and air bubbles exist in the drug liquid delivery pipeline, which affects the drug injection accuracy.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, in order to achieve an injection pump that meets the requirements of multi-agent mixed injection, the present invention provides a multi-agent mixed injection device for anesthesiology.

Means for Solving the Problems

[0005] The technical problem that this invention aims to solve is to provide a multi-drug mixing and infusion device for anesthesiology, which, by installing an expansion mechanism, can perform drug injection operations on four syringes simultaneously, and the user can selectively assemble the first and second expansion seats to the bottom and back of the rear cover of the main body according to the actual injection requirements. This flexible combination design improves the practicality of the device, eliminates the need for the user to change syringes, and improves the accuracy and ease of drug injection of the device. With the above setup, when simultaneous processing of multi-drug injection by an injection pump is required, the problems of reduced injection efficiency and poor injection accuracy can be solved.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical embodiments.

[0007] The multi-drug mixing and infusion device for anesthetics comprises a support frame, a rear body cover, and a front body cover, a first mounting seat fixedly connected to the outer wall of the rear body cover, a first adjustment knob screwed onto the first mounting seat, the rear body cover and the support frame being fixed together by the first mounting seat and the first adjustment knob, a partition plate fixedly connected to the inner wall of the support frame, a plurality of adjustment holes provided in the support frame and the partition plate, two drive mechanisms mounted within the support frame, a gripping and propulsion mechanism attached to the end of each drive mechanism, the drive mechanisms used to drive the gripping and propulsion mechanism to reciprocate horizontally, the gripping and propulsion mechanism used to grip and secure the thumb cap of the syringe piston, the gripping and propulsion mechanism has a propulsion inner shell, The device comprises a propulsion rod, a propulsion outer shell, a gripping mechanism, and a manual adjustment plate, wherein the propulsion inner shell and the propulsion outer shell are fixed together with screws, the propulsion rod is fixedly connected to the outer wall of the propulsion inner shell, the gripping mechanism is mounted inside the propulsion inner shell and the propulsion outer shell, the manual adjustment plate is rotatably connected to the outer wall of the propulsion outer shell, a push-down position limiting mechanism is mounted inside the front cover of the main body, a push-down rod is slidably connected to the push-down position limiting mechanism, the push-down rod is used in cooperation with the push-down position limiting mechanism to grip and limit the position of the syringe sleeve, and further comprises an expansion mechanism used to increase the number of syringes to be processed, the expansion mechanism being connected to the support frame and the gripping propulsion mechanism, respectively.

[0008] Selectively, the expansion mechanism comprises a first expansion seat and a second expansion seat attached to the support frame, with guide sleeves conforming to the dimensions of the propulsion rod fixedly connected to the inner walls of the first and second expansion seats, respectively, and the expansion mechanism further comprises a first connecting plate and a second connecting plate fixedly connected to the gripping propulsion mechanism.

[0009] Selectively, an outer shell positioning sleeve is fixedly connected to the inner wall of the propulsion outer shell, an inner shell positioning sleeve is fixedly connected to the inner wall of the propulsion inner shell, a first insertion rod is fixedly connected to the first connecting plate, a second insertion rod is fixedly connected to the second connecting plate, and lock knobs are fitted into the first and second insertion rods, respectively.

[0010] Selectively, the lock knob is fitted through the outer shell positioning sleeve and extends from the end of the outer shell positioning sleeve and is screwed into the inner shell positioning sleeve.

[0011] Selectively, a mounting base is fitted onto the outer wall of the support frame, a third mounting seat and a second mounting seat are fixedly connected to the top and bottom ends of the mounting base, a third adjustment knob and a second adjustment knob are screwed onto the third and second mounting seats, respectively, and the support frame and the mounting base are fixed together by the second and third mounting seats.

[0012] Selectively, the first extension seat portion is fixed to the support frame by the second mounting seat portion and screws, and the second extension seat portion is fixed to the support frame by the third mounting seat portion and screws.

[0013] Selectively, the mounting frame, the second mounting seat, and the third mounting seat are integrally molded.

[0014] Selectively, two gripping propulsion mechanisms and two push-down rods are installed on the front cover of the main body, one gripping propulsion mechanism and one push-down rod are installed on the first expansion seat and the second expansion seat, the gripping propulsion mechanism located at the bottom of the front cover of the main body and the gripping propulsion mechanism located at the first expansion seat are connected by the first connecting plate, and the gripping propulsion mechanism located at the top of the front cover of the main body and the gripping propulsion mechanism located at the second expansion seat are connected by the second connecting plate.

[0015] Selectively, the support frame is composed of three parts: a bottom frame, a self-locking swivel caster, and an upper rod, with the self-locking swivel caster fixedly connected to the bottom of the bottom frame and the upper rod fixedly connected to the top of the bottom frame.

[0016] Selectively, grooves are provided in the front cover of the main body, the first expansion seat, and the second expansion seat, respectively, for positioning the syringe flange. [Effects of the Invention]

[0017] Compared to the prior art, the present invention has at least the following beneficial effects.

[0018] In the above configuration, the installation of the expansion mechanism allows the device to simultaneously perform drug injection operations on four syringes. The four syringes are divided into two sets of two, with the movement speed and stroke of the syringes in each set being consistent, and each set of syringes being independently controllable. When multi-drug mixing injection is required, the user can selectively assemble the first and second expansion seats to the bottom and back of the rear cover of the main body according to the actual injection requirements. This flexible combination design improves the practicality of the device, eliminates the need for the user to change syringes, and improves the accuracy and ease of drug injection. Furthermore, by increasing the number of syringes to be processed without adding a drive source, the device reduces manufacturing costs and meets actual production requirements. In addition, the installation of the first and second connection plates simplifies the assembly of the first and second expansion seats, improving the ease of use of the device. [Brief explanation of the drawing]

[0019] The drawings incorporated herein and constituting part of the specification illustrate embodiments of the present invention and are used together with the specification to further illustrate the principles of the present invention, enabling those skilled in the art to carry out and use the present invention. [Figure 1] It is a schematic diagram showing a three-dimensional structure of a multi-drug mixing injection device for anesthesiology from a first perspective according to an embodiment. [Figure 2] It is a schematic diagram showing a three-dimensional structure of a multi-drug mixing injection device for anesthesiology from a second perspective according to an embodiment. [Figure 3] It is a schematic diagram showing a three-dimensional structure of a multi-drug mixing injection device for anesthesiology from a third perspective according to an embodiment. [Figure 4] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a rear body cover, a front body cover, and a gripping and propulsion mechanism. [Figure 5] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a rear body cover, a front body cover, and a first mounting seat portion. [Figure 6] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a rear body cover, a drive mechanism, and a gripping and propulsion mechanism. [Figure 7] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a front body cover, a drive mechanism, and a gripping and propulsion mechanism. [Figure 8] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a drive mechanism and a gripping and propulsion mechanism from a first perspective. [Figure 9] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a drive mechanism and a gripping and propulsion mechanism from a second perspective. [Figure 10] It is an example of an enlarged view showing a three-dimensional structure of an assembly of a gripping and propulsion mechanism. [Figure 11] It is an example of an exploded view showing a three-dimensional structure of an assembly of a gripping and propulsion mechanism and a gripping mechanism. [Figure 12] It is an example of an enlarged view showing a three-dimensional structure of an assembly of a front body cover and a push-down type position limiting mechanism. [Figure 13] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a push-down rod and a push-down type position limiting mechanism. [Figure 14] It is an example of a schematic diagram showing a three-dimensional structure of an assembly of a front body cover, a rear body cover, and a first extension seat portion. [Figure 15] It is an example of a cross-sectional view showing a three-dimensional structure of an assembly of a first extension seat portion and a gripping and propulsion mechanism. [Figure 16] This is an example of an enlarged view showing the three-dimensional structure of part A in Figure 15. [Figure 17] This is an example of a schematic diagram showing the three-dimensional structure of an assembly comprising a propulsion inner shell, a propulsion outer shell, and a first connecting plate. [Figure 18] This is an example of a schematic diagram showing the three-dimensional structure of the assembly of the first connecting plate, the first insertion rod, and the lock knob. [Figure 19] This is an example of a schematic diagram showing the three-dimensional structure of the assembly of the main body rear cover, the main body front cover, and the second extension seat, as viewed from a first viewpoint. [Figure 20] This is an example of a schematic diagram showing the three-dimensional structure of the assembly of the inner propulsion shell, the outer propulsion shell, and the second connecting plate. [Figure 21] This is an example of a schematic diagram showing the three-dimensional structure of the assembly of the second connecting plate, the second insertion rod, and the lock knob. [Figure 22] This is an example of a schematic diagram showing the three-dimensional structure of the assembly of the main body rear cover, the main body front cover, and the second extension seat, viewed from a second viewpoint. [Figure 23] This is a schematic diagram showing the three-dimensional structure of the assembly of the support frame and mounting base. [Figure 24] This is an example of an enlarged view showing the three-dimensional structure of the mounting bracket. [Modes for carrying out the invention]

[0020] The multi-drug mixing and infusion device for anesthesiology provided by the present invention will be described in detail below with reference to the drawings and specific embodiments. To illustrate the embodiments in more detail, the following embodiments are preferred optimal embodiments, and those skilled in the art may implement them by substituting common sense with other alternative means. Furthermore, the drawings are merely for illustrating the embodiments in more detail and are not intended to specifically limit the present invention.

[0021] Generally, terms are intelligible, at least partially, from their contextual use. For example, as used herein, the term “one or more” is at least partially contextually dependent and is used to describe a singular feature, structure, or characteristic, or a combination of plural features, structures, or characteristics. Similarly, the term “based on” should not necessarily be intended to describe an exclusive set of elements, but should be interpreted, at least partially contextually, to allow for the presence of other alternative elements not explicitly described.

[0022] In this invention, the expressions "on ○○," "above ○○," and "above ○○" should be interpreted in the broadest sense. Thus, the expression "on ○○" not only means "located directly on a certain object," but also encompasses the meaning of "located on a certain object via an intervening feature or layer." Furthermore, expressions such as "on ○○" or "above ○○" not only mean "located on or above a certain object," but also encompass the meaning of "located on or above a certain object without the intervening feature or layer."

[0023] As shown in Figures 1 to 13, one embodiment of the present invention provides a multi-drug mixing infusion device for anesthesiology, comprising a support frame 1, a main body rear cover 4, and a main body front cover 5. The support frame 1 is composed of three parts: a bottom frame, a self-locking swivel caster, and an upper rod. The self-locking swivel caster is fixedly connected to the bottom of the bottom frame, the upper rod is fixedly connected to the top of the bottom frame, a first mounting seat 6 is fixedly connected to the outer wall of the main body rear cover 4, a first adjustment knob 7 is screwed onto the first mounting seat 6, the space between the main body rear cover 4 and the support frame 1 is fixed by the first mounting seat 6 and the first adjustment knob 7, a partition plate 3 is fixedly connected to the inner wall of the support frame 1, and a plurality of adjustment holes 2 are provided in the support frame 1 and the partition plate 3, respectively.

[0024] In the structure described above, the adjustment hole 2 is provided in the upper rod of the support frame 1, allowing the user to simultaneously insert the first adjustment knob 7 into the adjustment hole 2 of the support frame 1 and the partition plate 3, and then fix the rear cover 4 of the main body to the support frame 1 with the first mounting seat 6. Since multiple adjustment holes 2 are provided in the support frame 1, the user can adjust the fixing height of the rear cover 4 of the main body by inserting the first adjustment knob 7 into adjustment holes 2 at different positions. By installing it in this way, the device can be independently fixed to the support frame 1, and the usage position of the device can be adjusted by the self-locking swivel casters on the support frame 1, simplifying the dynamic adjustment of the device by the user and improving the ease of use of the device.

[0025] Two drive mechanisms 8 are mounted within the support frame 1, and a gripping propulsion mechanism 9 is attached to the end of each drive mechanism 8. The drive mechanisms 8 are used to drive the gripping propulsion mechanism 9 to reciprocate horizontally. The gripping propulsion mechanism 9 is used to grip and secure the thumb cap of the syringe piston and comprises a propulsion inner shell 10, a propulsion rod 11, a propulsion outer shell 12, a gripping mechanism 13, and a manual adjustment plate 14. The propulsion inner shell 10 and the propulsion outer shell 12 are fixed with screws, the propulsion rod 11 is fixedly connected to the outer wall of the propulsion inner shell 10, the gripping mechanism 13 is mounted inside the propulsion inner shell 10 and the propulsion outer shell 12, and the manual adjustment plate 14 is rotatably connected to the outer wall of the propulsion outer shell 12.

[0026] In this technological embodiment, the drive mechanism 8, the gripping and propulsion mechanism 9, and the gripping mechanism 13 are well-known prior art in the field of injection pumps. Therefore, the cooperative operating principle of the drive mechanism 8, the gripping and propulsion mechanism 9, and the gripping mechanism 13 is disclosed as prior art in this application and will not be described in detail here. Two drive mechanisms 8 are mounted inside the front cover 5 of the main body, and a gripping and propulsion mechanism 9 is attached to each of the two drive mechanisms 8. Each drive mechanism 8 can independently drive the gripping and propulsion mechanism 9 to reciprocate horizontally. With this setup, the device can independently drive the two gripping and propulsion mechanisms 9 to move at different strokes and speeds, and furthermore, it can perform drug injection processing using two syringes. In addition, the two independently moving gripping and propulsion mechanisms 9 can individually adjust the drug injection speed and dosage from the syringes.

[0027] Furthermore, by pressing the manual adjustment plate 14, the user can grip and secure the thumb cap of the syringe piston with the gripping propulsion mechanism 9. This allows the movement of the syringe piston to be driven as the gripping propulsion mechanism 9 moves.

[0028] A push-down position limiting mechanism 16 is installed inside the front cover 5 of the main body, and a push-down rod 15 is slidably connected to the push-down position limiting mechanism 16. The push-down rod 15 is used together with the push-down position limiting mechanism 16 to grip and limit the position of the syringe sleeve, and the push-down position limiting mechanism 16 is used to limit and adjust the amount of pressure applied to the push-down rod 15, thereby achieving the fixing effect of the syringe sleeve by the push-down rod 15. In this technical embodiment, the cooperative operating principle of the push-down rod 15 and the push-down position limiting mechanism 16 is a well-known prior art in the art, and is therefore disclosed as prior art in this application and will not be described in detail here.

[0029] As one embodiment of this model, as shown in Figures 14 to 22, the expansion mechanism is used to increase the number of syringes processed by the device. The expansion mechanism includes a first expansion seat 17 and a second expansion seat 24, which are connected to and attached to the support frame 1 and the gripping propulsion mechanism 9, respectively. The front cover 5 of the main body, the first expansion seat 17, and the second expansion seat 24 each have grooves for positioning the syringe flange, and guide sleeves 18 that conform to the dimensions of the propulsion rod 11 are fixedly connected to the inner walls of the first expansion seat 17 and the second expansion seat 24, respectively. The expansion mechanism further includes a first connection plate 19 and a second connection plate 25 that are fixedly connected to the gripping propulsion mechanism 9. The front cover 5 of the main body is equipped with two gripping propulsion mechanisms 9 and two push-down rods 15, and the first expansion seat 17 and the second expansion seat 24 each are equipped with one gripping propulsion mechanism 9 and one push-down rod 15. The gripping propulsion mechanism 9 located at the bottom of the main body front cover 5 and the gripping propulsion mechanism 9 located at the first extension seat portion 17 are connected by a first connecting plate 19. The gripping propulsion mechanism 9 located at the top of the main body front cover 5 and the gripping propulsion mechanism 9 located at the second extension seat portion 24 are connected by a second connecting plate 25.

[0030] In the structure described above, a gripping propulsion mechanism 9 and a push-down rod 15 are installed in the first expansion seat 17 and the second expansion seat 24, respectively, and a push-down position limiting mechanism 16 for adjusting and limiting the position of the push-down rod 15 is installed in the first expansion seat 17 and the second expansion seat 24, respectively. Therefore, both the first expansion seat 17 and the second expansion seat 24 can achieve the effect of fixing the syringe sleeve and the thumb cap of the piston. The user can achieve a fixing effect on the entire syringe by inserting the flange portion of the syringe sleeve into the grooves of the first expansion seat 17 and the second expansion seat 24, and then gripping and fixing the thumb cap of the syringe piston with the gripping propulsion mechanism 9.

[0031] Furthermore, guide sleeves 18 for restricting the position of the propulsion rod 11 are installed in the first expansion seat 17 and the second expansion seat 24, respectively. With this setup, the gripping propulsion mechanism 9 can freely extend and slide within the first expansion seat 17 and the second expansion seat 24, and will not fall off or shake during sliding.

[0032] Furthermore, since the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 and the gripping propulsion mechanism 9 on the first expansion seat 17 are connected by the first connecting plate 19, when the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 is driven by the drive mechanism 8 and moves, the gripping propulsion mechanism 9 on the first expansion seat 17 moves synchronously, thereby allowing the gripping propulsion mechanism 9 on the first expansion seat 17 and the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 to move synchronously at the same speed and stroke. Similarly, since the gripping propulsion mechanism 9 at the top of the main body front cover 5 and the gripping propulsion mechanism 9 on the second expansion seat 24 are connected by the second connecting plate 25, when the gripping propulsion mechanism 9 at the top of the main body front cover 5 is driven by the drive mechanism 8 and moves, the gripping propulsion mechanism 9 on the second expansion seat 24 moves synchronously. With the structure described above, the device can perform drug injection processing on four syringes. The four syringes are divided into two sets of two, with the movement speed and stroke of the syringes in each set being consistent, and each set of syringes being independently controllable. When multi-drug mixing injection is required, the user can selectively assemble the gripping and propulsion mechanisms 9 on the first expansion seat 17 and the second expansion seat 24 to the gripping and propulsion mechanisms 9 on the bottom and top of the front cover 5 of the main body, according to the actual injection requirements. This flexible combination design improves the practicality of the device, eliminates the need for the user to change syringes, and improves the accuracy and ease of drug injection of the device. Furthermore, by increasing the number of syringes to be processed without adding a drive source, the device reduces the manufacturing cost of the device and meets actual production requirements.

[0033] Selectively, since typical general anesthesia surgeries usually use 3 to 4 different anesthetics, the installation of this device allows for simultaneous processing of four syringes, thus meeting the requirements of actual use.

[0034] In this embodiment, as shown in Figures 15 to 21, an outer shell positioning sleeve 22 is fixedly connected to the inner wall of the propulsion outer shell 12, and an inner shell positioning sleeve 23 is fixedly connected to the inner wall of the propulsion inner shell 10. A first insertion rod 20 is fixedly connected to a first connection plate 19, and a second insertion rod 26 is fixedly connected to a second connection plate 25. Lock knobs 21 are fitted onto the first insertion rod 20 and the second insertion rod 26, respectively. The lock knobs 21 are fitted through the outer shell positioning sleeve 22 and extend from the end of the outer shell positioning sleeve 22, and are screwed into the inner shell positioning sleeve 23.

[0035] Based on the above, the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 and the gripping propulsion mechanism 9 on the first expansion seat portion 17 are connected by a first connecting plate 19, and the gripping propulsion mechanism 9 at the top of the main body front cover 5 and the gripping propulsion mechanism 9 on the second expansion seat portion 24 are connected by a second connecting plate 25. Specifically, the outer circumference dimensions of the first insertion rod 20 on the first connecting plate 19 and the second insertion rod 26 on the second connecting plate 25 match the inner circumference dimensions of the outer shell positioning sleeve 22, so that both the first insertion rod 20 and the second insertion rod 26 can be fitted into the outer shell positioning sleeve 22. During actual assembly, the user first inserts and positions the first connecting plate 19 and the second connecting plate 25 into the gripping propulsion mechanism 9 using the first insertion rod 20 and the second insertion rod 26, and then manually rotates the lock knob 21 to screw it into the inner shell positioning sleeve 23, thereby achieving a fixing effect on the first connecting plate 19 and the second connecting plate 25. This fixing method is not only simple but also structurally stable.

[0036] In this embodiment, as shown in Figures 22 to 24, a mounting base 27 is fitted onto the outer wall of the support frame 1. A third mounting seat 30 and a second mounting seat 28 are fixedly connected to the top and bottom ends of the mounting base 27, respectively, and a third adjustment knob 31 and a second adjustment knob 29 are screwed onto the third mounting seat 30 and the second mounting seat 28, respectively. The support frame 1 and the mounting base 27 are fixed together by the second mounting seat 28 and the third mounting seat 30, the first extension seat 17 and the support frame 1 are fixed together by the second mounting seat 28 and screws, and the second extension seat 24 and the support frame 1 are fixed together by the third mounting seat 30 and screws. As a result, the mounting base 27, the second mounting seat 28 and the third mounting seat 30 have an integrally molded structure.

[0037] In the structure described above, the mounting base 27 allows the first expansion seat 17 and the second expansion seat 24 to be fixed to the support frame 1 in a synchronous manner, and the first expansion seat 17 and the second expansion seat 24 are fixed to the bottom and back of the main body rear cover 4, respectively. This centralized fixing method simplifies the connection of the drug delivery line to the syringe by the user.

[0038] The operating principle of the technical embodiment provided by the present invention is as follows:

[0039] When in use, the user first inserts the first adjustment knob 7 simultaneously into the adjustment holes 2 on the support frame 1 and the partition plate 3, and then fixes the main body rear cover 4 and the main body front cover 5 to the support frame 1 with the first mounting seat 6. Since the support frame 1 has multiple adjustment holes 2, the user can adjust the fixing height of the main body rear cover 4 and the main body front cover 5 by inserting the first adjustment knob 7 into adjustment holes 2 at different positions. After the main body rear cover 4 and the main body front cover 5 are fixed, the user presses the manual adjustment plate 14, grips and fixes the thumb cap of the syringe piston with the gripping and propulsion mechanism 9, and then presses down the push-down rod 15, gripping and fixing the syringe sleeve with the push-down rod 15, thereby achieving a fixing effect on the syringe.

[0040] When multi-drug injection is required, the user first fixes the first expansion seat 17 and the second expansion seat 24 to the support frame 1 in synchronization with the mounting base 27, at which point the first expansion seat 17 and the second expansion seat 24 are positioned at the bottom and back of the main body rear cover 4, respectively. The user then fixes the syringe to the first expansion seat 17 and the second expansion seat 24, and finally inserts and positions the first connection plate 19 and the second connection plate 25 into the gripping propulsion mechanism 9 using the first insertion rod 20 and the second insertion rod 26, manually rotates the lock knob 21, and screws the lock knob 21 into the inner shell positioning sleeve 23 to fix it in place. This achieves a fixing effect on the first connection plate 19 and the second connection plate 25. At this time, when the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 is driven by the drive mechanism 8 and moves, the gripping propulsion mechanism 9 on the first expansion seat 17 moves synchronously, thereby allowing the gripping propulsion mechanism 9 on the first expansion seat 17 and the gripping propulsion mechanism 9 at the bottom of the main body front cover 5 to move synchronously at the same speed and stroke. Similarly, since the gripping propulsion mechanism 9 at the top of the main body front cover 5 and the gripping propulsion mechanism 9 on the second expansion seat 24 are connected by the second connecting plate 25, when the gripping propulsion mechanism 9 at the top of the main body front cover 5 is driven by the drive mechanism 8 and moves, the gripping propulsion mechanism 9 on the second expansion seat 24 moves synchronously. With the above-described structure installed, the device can perform drug injection processing on four syringes, and the four syringes are divided into two sets of two, with the movement speed and stroke of the syringes in each set being the same, and each set of syringes being independently controllable.

[0041] The foregoing description represents merely preferred embodiments of the present invention, and those skilled in the art may add several improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. [Explanation of symbols]

[0042] 1 Support frame, 2 Adjustment hole, 3 Partition plate, 4 Main body rear cover, 5 Main body front cover, 6 First mounting base, 7 First adjustment knob, 8 Drive mechanism, 9 Gripping propulsion mechanism, 10 Inner shell for propulsion, 11 Propulsion rod, 12 Outer shell for propulsion, 13 Gripping mechanism, 14 Manual adjustment plate, 15 Push-down rod, 16 Push-down position limiting mechanism, 17 First expansion base, 18 Guide sleeve, 19 First connection plate, 20 First insertion rod, 21 Lock knob, 22 Outer shell positioning sleeve, 23 Inner shell positioning sleeve, 24 Second expansion base, 25 Second connection plate, 26 Second insertion rod, 27 Mounting base, 28 Second mounting base, 29 Second adjustment knob, 30 Third mounting base, 31 Third adjustment knob.

Claims

1. A multi-drug mixing infusion device for anesthesiology, It comprises a support frame, a rear cover for the main body, and a front cover for the main body. A first mounting seat is fixedly connected to the outer wall of the rear cover of the main body, a first adjustment knob is screwed onto the first mounting seat, the rear cover of the main body and the support frame are fixed together by the first mounting seat and the first adjustment knob, a partition plate is fixedly connected to the inner wall of the support frame, and a plurality of adjustment holes are provided in the support frame and the partition plate, respectively. Two drive mechanisms are mounted within the support frame, a gripping propulsion mechanism is attached to the end of each drive mechanism, the drive mechanisms are used to drive the gripping propulsion mechanism to reciprocate horizontally, the gripping propulsion mechanism is used to grip and secure the thumb cap of the syringe piston, the gripping propulsion mechanism comprises a propulsion inner shell, a propulsion rod, a propulsion outer shell, a gripping mechanism, and a manual adjustment plate, the propulsion inner shell and the propulsion outer shell are fixed together with screws, the propulsion rod is fixedly connected to the outer wall of the propulsion inner shell, the gripping mechanism is mounted within the propulsion inner shell and the propulsion outer shell, and the manual adjustment plate is rotatably connected to the outer wall of the propulsion outer shell, A push-down type position limiting mechanism is installed inside the front cover of the main body, a push-down rod is slidably connected to the push-down type position limiting mechanism, and the push-down rod is used in cooperation with the push-down type position limiting mechanism to grip and limit the position of the syringe sleeve. A multi-drug mixing and injection device for anesthesiology, further comprising an expansion mechanism used to increase the number of syringes to be processed, wherein the expansion mechanism is connected to the support frame and the gripping and propulsion mechanism, respectively.

2. The multi-drug infusion device for anesthesiology according to claim 1, wherein the expansion mechanism comprises a first expansion seat and a second expansion seat attached to the support frame, and guide sleeves conforming to the dimensions of the propulsion rod are fixedly connected to the inner walls of the first expansion seat and the second expansion seat, respectively, and the expansion mechanism further comprises a first connecting plate and a second connecting plate fixedly connected to the gripping propulsion mechanism.

3. The multi-drug mixing infusion device for anesthesiology according to claim 2, characterized in that an outer shell positioning sleeve is fixedly connected to the inner wall of the propulsion outer shell, an inner shell positioning sleeve is fixedly connected to the inner wall of the propulsion inner shell, a first insertion rod is fixedly connected to the first connecting plate, a second insertion rod is fixedly connected to the second connecting plate, and lock knobs are fitted into the first insertion rod and the second insertion rod, respectively.

4. The multi-drug mixing infusion device for anesthesiology according to claim 3, characterized in that the lock knob is inserted through the outer shell positioning sleeve, extends from the end of the outer shell positioning sleeve, and is screwed into the inner shell positioning sleeve.

5. The multi-drug mixing infusion device for anesthesiology according to claim 2, characterized in that a mounting base is fitted onto the outer wall of the support frame, a third mounting seat and a second mounting seat are fixedly connected to the top and bottom ends of the mounting base, respectively, a third adjustment knob and a second adjustment knob are screwed onto the third mounting seat and the second mounting seat, respectively, and the support frame and the mounting base are fixed together by the second and third mounting seats.

6. The multi-drug mixing infusion device for anesthesiology according to claim 5, characterized in that the first expansion seat portion and the support frame are fixed together by the second mounting seat portion and screws, and the second expansion seat portion and the support frame are fixed together by the third mounting seat portion and screws.

7. The multi-drug mixing infusion device for anesthesiology according to claim 5, characterized in that the mounting base, the second mounting seat, and the third mounting seat are integrally molded.

8. The multi-drug mixing infusion device for anesthesiology according to claim 2, characterized in that two gripping propulsion mechanisms and two push-down rods are installed on the front cover of the main body, one gripping propulsion mechanism and one push-down rod are installed on the first expansion seat and the second expansion seat, the gripping propulsion mechanism located at the bottom of the front cover of the main body and the gripping propulsion mechanism located at the first expansion seat are connected by the first connecting plate, and the gripping propulsion mechanism located at the top of the front cover of the main body and the gripping propulsion mechanism located at the second expansion seat are connected by the second connecting plate.

9. The support frame is composed of three parts: a bottom frame, a self-locking swivel caster, and an upper rod, wherein the self-locking swivel caster is fixedly connected to the bottom of the bottom frame, and the upper rod is fixedly connected to the top of the bottom frame, as described in claim 1.

10. The multi-drug mixing and infusion device for anesthesiology according to claim 2, characterized in that the front cover of the main body, the first expansion seat, and the second expansion seat each have grooves provided for restricting the position of the syringe flange.

Images