Multi-point synchronous anesthesia device in the anesthesia department

Abstract

The present invention relates to a multi-point synchronous anesthesia device for anesthesia department, comprising a frame, on which a driving component, a plurality of levers, and a plurality of injection mechanisms are provided. The levers are arranged at intervals, the driving component corresponding to the lever is arranged at one end of each lever, and the injection mechanism is arranged at the other end of each lever. The injection mechanism includes a first plunger cylinder component and a second plunger cylinder component. The rodless cavity of the first plunger cylinder component is connected to the rodless cavity of the second plunger cylinder component via a flexible tube. The first plunger cylinder component is slidably arranged on the frame, and the second plunger cylinder component can be connected to a syringe so that when the second plunger cylinder component is extended, it can push the piston rod of the corresponding connected syringe into the barrel of the syringe. The device can enable each syringe to start and end anesthetic injection at the same time, and is not affected by the anesthetic dosage required to be injected into each syringe.

Description

Technical Field

[0001] The present invention relates to the field of anesthesia technology, and in particular to a multi-point synchronous anesthesia device for anesthesia department. Background Art

[0002] During various surgical or medical operations, anesthesia is generally required to increase the success rate of the operation and reduce the patient's pain during the operation.

[0003] For example, a multi-point synchronous anesthesia device disclosed in the authorization announcement number CN219481131U can use multiple syringes to inject patients at the same time, and the number of syringes can also be adjusted, but the piston rods of each syringe are connected together, and the stroke of each piston rod is exactly the same. It is only suitable for the situation where the anesthetic dosage in each syringe is the same, and cannot meet the situation where the anesthetic injection dosage in different areas is different. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a multi-point synchronous anesthesia device for the anesthesia department, so as to at least solve the problem that the multi-point synchronous anesthesia device in the prior art cannot meet the requirements of different anesthetic dosages in multiple needle tubes and cannot be injected synchronously.

[0005] The present invention is achieved through the following technical solutions:

[0006] The cam is connected to the piston rod of the piston rod and the piston rod of the piston rod is connected to the piston rod of the piston rod end.

[0007] Furthermore, the driving component includes a rotation driver and a plurality of cams, the cams are respectively arranged corresponding to the levers, and each cam is respectively in contact with the corresponding lever, and the rotation driver is used to drive the cams to rotate.

[0008] Furthermore, the cam and the first plunger cylinder component are arranged on the same side of the corresponding lever, the piston cylinder of the first plunger cylinder component is slidably arranged on the frame, and the piston rod of the first plunger cylinder component extends toward the corresponding lever.

[0009] Furthermore, the cam is provided with a first contour segment, and the cam radii of any two points with an angle difference of θ in the first contour segment area differ by k·θ, where k is a non-zero constant, and the cam can at least drive the lever to rotate through the first contour segment area.

[0010] Furthermore, the cam is also provided with a second contour segment, which is arranged adjacent to the first contour segment. Within the second contour segment area, the difference in cam radius between any two points with an angle difference of α is negatively correlated with the distance between the two points adjacent to the second contour segment and the first contour segment. The cam can at least drive the lever to rotate through the first contour segment area and the second contour segment area.

[0011] Furthermore, the levers are arranged side by side, the cams are fixed on the same rotating shaft, and the rotating driver drives the rotating shaft to rotate.

[0012] Furthermore, the frame is provided with scale lines, which are arranged along the sliding direction of the piston cylinder. The scale values ​​of the scale lines are used to represent the distance difference between the scale position along the axial direction of the first piston cylinder component and the two extreme positions of the lever rotated under the drive of the cam.

[0013] Furthermore, the rotation driver is a stepping motor.

[0014] Furthermore, an elastic member is provided at one end of the lever abutting against the cam, and both ends of the elastic member are respectively connected to the lever and the frame. The elastic member provides elastic force to keep the lever in contact with the corresponding cam.

[0015] Furthermore, a connecting device is provided on the piston cylinder of the second plunger cylinder component, and the connecting device is used to be fixedly connected to the barrel of the syringe, so that the piston rod of the second plunger cylinder component extends to the piston rod of the syringe.

[0016] The beneficial effects of the present invention are:

[0017] This multi-point synchronized anesthesia device for anesthesia departments injects liquid or gas into the piston cylinder of the first plunger cylinder component before use, via the piston cylinder of the second plunger cylinder component and a flexible tube. During use, a driving component rotates the levers, causing each lever to press the piston rod of each first plunger cylinder component into the piston cylinder of the first plunger cylinder component. The piston rod of the second plunger cylinder component then extends out of the piston cylinder of the second plunger cylinder component, pushing the piston rod of the connected syringe to inject anesthetic. Because the first plunger cylinder component can be slidably adjusted on the frame, the distance the piston rod of the first plunger cylinder component is pressed into position by the lever can be adjusted, and the corresponding movement distance of the piston rod of each syringe can also be adjusted. The start and end times of the piston rod movement of each syringe are synchronized according to the rotation time of the lever. By controlling the driving component to synchronize the lever rotation, each syringe can start and end anesthetic injection simultaneously, regardless of the required anesthetic dosage in each syringe. This solves the problem of different anesthetic dosages in different syringes in the prior art, which prevents synchronized injection.

[0018] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A partial cross-sectional view of a front view of a multi-point synchronous anesthesia device for anesthesiology provided by one embodiment of the present invention;

[0020] Figure 2 for Figure 1 The structural diagram of the cam shown;

[0021] Figure 3 for Figure 1 The structural diagram of the injection mechanism shown;

[0022] Reference numerals:

[0023] 1-frame, 2-driving component, 21-rotating driver, 22-cam, 221-first contour segment, 222-second contour segment, 3-lever, 4-injection mechanism, 41-first plunger cylinder component, 42-second plunger cylinder component, 43-flexible tube, 44-connecting device, 5-elastic member, 6-syringe. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] In the above description of the present invention, it should be noted that the terms "one side," "the other side," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0028] Furthermore, the term "identical" and similar terms do not necessarily require that the components be absolutely identical; slight variations are permitted. The term "perpendicular" simply refers to the positional relationship between components being more perpendicular than "parallel," not that the structure must be perfectly vertical; rather, it can be slightly tilted.

[0029] See also Figure 1-3An embodiment of the present invention provides a multi-point synchronous anesthesia device for anesthesia department, comprising a frame 1. The frame 1 is provided with a driving component 2, a plurality of levers 3 and a plurality of injection mechanisms 4. The levers 3 are arranged at intervals, and the driving component 2 is arranged at one end of each lever 3 corresponding to the lever 3. The injection mechanism 4 is arranged at the other end of each lever 3. The injection mechanism 4 includes a first plunger cylinder component 41 and a second plunger cylinder component 42. The rodless cavity of the first plunger cylinder component 41 is connected to the rodless cavity of the second plunger cylinder component 42 through a flexible tube 43. The first plunger cylinder component 41 is slidably arranged on the frame 1, and the sliding direction of the first plunger cylinder component 41 is the same as the extension direction of the corresponding lever 3 rotation projection onto the frame 1. One end of the first plunger cylinder component 41 extends toward the corresponding lever 3. The driving component 2 can drive the lever 3 to rotate, and enable the lever 3 to press the piston rod of the corresponding first plunger cylinder component 41 into the piston cylinder of the first plunger cylinder component 41. The second plunger cylinder component 42 can be connected to the syringe 6 so that when the second plunger cylinder component 42 is extended, it can push the piston rod of the corresponding connected syringe 6 to move into the barrel of the syringe 6.

[0030] Before use, the multi-point synchronized anesthesia device for anesthesia is injected with liquid or gas into the piston cylinder of the first plunger cylinder component 41 due to the interaction with the piston cylinder of the second plunger cylinder component 42 and the flexible tube 43. During use, the lever 3 is rotated by the drive component 2, causing each lever 3 to press the piston rod of each first plunger cylinder component 41 into the piston cylinder of the first plunger cylinder component 41. The piston rod of the second plunger cylinder component 42 then extends out of the piston cylinder of the second plunger cylinder component 42, pushing the piston rod of the connected syringe 6 to inject anesthetic. Because the first plunger cylinder component 41 can be slidably adjusted on the frame 1, the distance to which the piston rod of the first plunger cylinder component 41 is pressed by the lever 3 can be adjusted, and the corresponding movement distance of the piston rod of each syringe 6 can also be adjusted. The start and end times of the movement of the piston rod of each syringe 6 are the same according to the rotation time of the lever 3. By controlling the drive component 2 to rotate the lever 3 synchronously, each syringe 6 can start and end anesthetic injection simultaneously, regardless of the anesthetic dosage required to be injected into each syringe 6. This solves the problem in the prior art that anesthetics in different syringes have different dosages and cannot be injected synchronously.

[0031] It will be appreciated that the first and second plunger cylinder components 41, 42 resemble two interconnected hydraulic cylinders, and the injected liquid or gas resembles hydraulic oil. When the piston rod of the first plunger cylinder component 41 extends or retracts, the second plunger cylinder component 42 correspondingly retracts or extends by a proportional amount. The first and second plunger cylinder components 41, 42 are connected by a flexible tube 43, allowing the second plunger cylinder component 42 to adapt to syringes 6 in different positions, thereby enhancing the versatility of the device.

[0032] In one embodiment, the driving component 2 includes a rotary driver 21 and a plurality of cams 22. The cams 22 are respectively arranged corresponding to each lever 3, and each cam 22 is respectively in contact with the corresponding lever 3, and the rotary driver 21 is used to drive the cams 22 to rotate. The rotation of the cams 22 drives the lever 3 to rotate. Preferably, the levers 3 are arranged side by side, and the cams 22 are fixed together on the same rotating shaft, and the rotary driver 21 drives the rotating shaft to rotate. Thus, one rotary driver 21 can drive all the levers 3 to rotate synchronously. This enables multiple syringes 6 to inject anesthetics synchronously. Preferably, the rotary driver 21 is a stepping motor. In one embodiment, the cam 22 and the first plunger cylinder component 41 are arranged on the same side of the corresponding lever 3. The piston cylinder of the first plunger cylinder component 41 is slidably arranged on the frame 1, and the piston rod of the first plunger cylinder component 41 extends toward the corresponding lever 3.

[0033] In one embodiment, the cam 22 has a first profile segment 221. Within the first profile segment 221, the cam radii of any two locations separated by an angle θ differ by a value k·θ, where k is a non-zero constant. The cam 22 is capable of driving the lever 3 to rotate at least through the first profile segment 221. In one embodiment, the cam 22 also has a second profile segment 222, which is positioned adjacent to the first profile segment 221. Within the second profile segment 222, the difference in cam radii between any two locations separated by an angle α is negatively correlated with the distance between the second profile segment 222 and the adjacent locations of the first profile segment 221. The cam 22 is capable of driving the lever 3 to rotate at least through the first profile segment 221 and the second profile segment 222. When the first contour segment 221 or the second contour segment 222 of the cam 2 drives the lever 3, the rotary actuator 21 is controlled to rotate at a constant speed. When the first contour segment 221 drives the lever 3, the motion transmitted by the lever 33 allows the corresponding syringe 6 to inject the anesthetic at a nearly constant speed, thereby reducing patient discomfort during the anesthetic injection. When the second contour segment 222 drives the lever 3, the motion transmitted by the lever 33, depending on the rotation direction of the cam 3, allows the corresponding syringe 6 to inject the anesthetic at an injection speed that is first fast and then slow, or first slow and then fast. This reduces patient discomfort at the beginning or end of the anesthetic injection phase.

[0034] In one embodiment, the frame 1 is provided with graduated lines. These lines are arranged along the sliding direction of the piston cylinder. The graduations on the graduated lines represent the distance difference between the two extreme rotational positions of the lever 3 driven by the cam 22, projected along the axial direction of the first plunger cylinder component 41. The graduated lines indicate the expected retraction amount of the piston rod of the first plunger cylinder component 41 at the corresponding position, allowing the first plunger cylinder component 41 to be moved to the appropriate position based on the amount of anesthetic in the syringe 6, providing ease of use.

[0035] In one embodiment, the end of the lever 3 that contacts the cam 22 is further provided with an elastic member 5. The ends of the elastic member 5 are respectively connected to the lever 3 and the frame 1. The elastic member 5 provides elastic force to keep the lever 3 in contact with the corresponding cam 22. Specifically, the elastic member 5 is a coil spring.

[0036] In one embodiment, a connecting device 44 is provided on the piston cylinder of the second plunger cylinder component 42. The connecting device 44 is used to be fixedly connected to the barrel of the syringe 6, so that the piston rod of the second plunger cylinder component 42 extends toward the piston rod of the syringe 6. It is understood that the connecting device 44 can be a structure capable of fixing the syringe 6, such as a slot, a chuck, etc.

[0037] Working principle,

[0038] Before use, the multi-point synchronized anesthesia device for anesthesia is injected with liquid or gas into the piston cylinder of the first plunger cylinder component 41 due to the connection with the piston cylinder of the second plunger cylinder component 42 and the flexible tube 43. During use, the lever 3 is rotated by the drive component 2, causing each lever 3 to press the piston rod of each first plunger cylinder component 41 into the piston cylinder of the first plunger cylinder component 41. The piston rod of the second plunger cylinder component 42 then extends out of the piston cylinder of the second plunger cylinder component 42, pushing the piston rod of the connected syringe 6 to inject anesthetic. Because the first plunger cylinder component 41 can be slidably adjusted on the frame 1, the distance to which the piston rod of the first plunger cylinder component 41 is pressed by the lever 3 can be adjusted, and the corresponding movement distance of the piston rod of each syringe 6 can also be adjusted. The start and end times of the movement of the piston rod of each syringe 6 are the same according to the rotation time of the lever 3. By controlling the drive component 2 to rotate the lever 3 synchronously, each syringe 6 can start and end anesthetic injection at the same time, regardless of the anesthetic dosage required to be injected into each syringe 6. This solves the problem in the prior art that anesthetics in different syringes have different dosages and cannot be injected synchronously.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A multi-point synchronous anesthesia device for anesthesia department, comprising a frame, characterized in that: The frame is provided with a driving component, multiple levers and multiple injection mechanisms, the levers are arranged at intervals, the driving component is arranged at one end of each lever corresponding to the lever, and the injection mechanism is arranged corresponding to the other end of each lever. The injection mechanism includes a first plunger cylinder component and a second plunger cylinder component, the rodless cavity of the first plunger cylinder component is connected to the rodless cavity of the second plunger cylinder component through a flexible tube, the first plunger cylinder component is slidably arranged on the frame, the sliding direction of the first plunger cylinder component is the same as the extension direction of the corresponding lever rotation projection onto the frame, one end of the first plunger cylinder component extends to the corresponding lever, the driving component can drive the lever to rotate, and make the lever press the piston rod corresponding to the first plunger cylinder component into the piston cylinder of the first plunger cylinder component, the second plunger cylinder component can be connected to the syringe, so that when the second plunger cylinder component is extended, it can push the piston rod of the corresponding connected syringe to move into the barrel of the syringe.

2. The multi-point synchronous anesthesia device of the anesthesia department according to claim 1, characterized in that: The driving component includes a rotation driver and a plurality of cams. The cams are respectively arranged corresponding to the levers, and each cam is respectively in contact with the corresponding lever. The rotation driver is used to drive the cams to rotate.

3. The multi-point synchronous anesthesia device of the anesthesia department according to claim 2, characterized in that: The cam and the first plunger cylinder component are arranged on the same side of the corresponding lever, the piston cylinder of the first plunger cylinder component is slidably arranged on the frame, and the piston rod of the first plunger cylinder component extends toward the corresponding lever.

4. The multi-point synchronous anesthesia device of the anesthesia department according to claim 3, characterized in that: The cam is provided with a first contour segment, and the cam radii of any two locations with an angle difference of θ in the first contour segment area differ by k·θ, where k is a non-zero constant. The cam can at least drive the lever to rotate through the first contour segment area.

5. The multi-point synchronous anesthesia device of the anesthesia department according to claim 4, characterized in that: The cam is also provided with a second contour segment, which is arranged adjacent to the first contour segment. Within the second contour segment area, the difference in cam radius between any two points with an angle difference of α is negatively correlated with the distance between the two points adjacent to the second contour segment and the first contour segment. The cam can at least drive the lever to rotate through the first contour segment area and the second contour segment area.

6. The multi-point synchronous anesthesia device of the anesthesia department according to claim 2, characterized in that: The levers are arranged side by side, the cams are fixed on the same rotating shaft, and the rotating driver drives the rotating shaft to rotate.

7. The multi-point synchronous anesthesia device of the anesthesia department according to claim 2, characterized in that: The frame is provided with scale lines, which are arranged along the sliding direction of the piston cylinder. The scale values ​​of the scale lines are used to represent the distance difference between the scale positions along the axial direction of the first plunger cylinder component and the two extreme positions of the lever rotated under the drive of the cam.

8. The multi-point synchronous anesthesia device of the anesthesia department according to claim 2, characterized in that: The rotation driver is a stepping motor.

9. The multi-point synchronous anesthesia device of the anesthesia department according to claim 2, characterized in that: An elastic member is further provided at one end of the lever abutting against the cam, and both ends of the elastic member are respectively connected to the lever and the frame. The elastic member provides elastic force to keep the lever in contact with the corresponding cam.

10. The multi-point synchronous anesthesia device of the anesthesia department according to claim 1, characterized in that: A connecting device is provided on the piston cylinder of the second plunger cylinder component, and the connecting device is used to be fixedly connected to the barrel of the syringe, so that the piston rod of the second plunger cylinder component extends to the piston rod of the syringe.

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