Anesthetic quantitative preparation device

Abstract

The utility model discloses an anesthetic quantitative preparation device which comprises a bearing table used for placing a mixed anesthetic receiving container, a plurality of quantitative preparation units are arranged above the bearing table through a supporting structure, and each quantitative preparation unit comprises a drug temporary storage cylinder and a piston type preparation cylinder which are arranged in parallel. The two are communicated through a medicine pumping pipeline with a first one-way valve, and the medicine pumping pipeline is further communicated with a medicine feeding pipeline with a second one-way valve; wherein a lifting structure is arranged relative to the piston of the piston type preparation cylinder, and the lifting structure is used for adjusting the stroke of the piston, so that the anesthetic can be quantitatively sucked in from the medicine pumping pipeline or quantitatively sent out from the medicine feeding pipeline. The utility model aims to provide the quantitative anesthetic preparation device which can assist an anesthetist in mixing and preparing anesthetic, realizes quantitative suction and delivery of the anesthetic by accurately controlling the stroke of the piston through the lifting structure, is low in labor intensity, and is beneficial to ensuring that the content of each component in the mixed anesthetic is accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of clinical anesthesia auxiliary equipment, in particular to a quantitative preparation device for anesthesia drugs. Background Art

[0002] Anesthetics refer to drugs that can cause temporary and reversible loss of sensation and pain in the whole body or part of the body. According to their scope of action, they can be divided into general anesthetics and local anesthetics. According to their action characteristics and administration methods, general anesthetics can be divided into inhalation anesthetics and intravenous anesthetics.

[0003] In clinical practice, anesthesiologists usually mix anesthetic drugs. The advantage of this is that while superimposing the anesthetic effects of various drugs, each drug can be controlled at a smaller dose to reduce the side effects of the drug itself. At present, when anesthesiologists mix various anesthetic drugs, they usually use a syringe to extract a certain amount from the containers containing different drugs, and then put them in a container for shaking and mixing. In this process, there are at least the following disadvantages:

[0004] 1. Considering that the level of anesthesiologists varies, when quantitatively preparing mixed anesthetic agents, they are easily affected by subjective factors such as the proficiency and sense of responsibility of anesthesiologists, which may cause deviations in the content of each component of the prepared mixed anesthetic agent, thus affecting the effect of the mixed anesthetic agent;

[0005] 2. When extracting various types of liquid medicine, anesthesiologists need to repeatedly observe and compare the scales on the syringe. This operation is cumbersome, time-consuming and labor-intensive, and affects the efficiency of preparing mixed anesthetics. Utility Model Content

[0006] The utility model aims to provide a quantitative preparation device for anesthetic drugs, which can assist anesthesiologists in mixing and preparing anesthetic drugs, and utilize a lifting structure to accurately control the piston stroke to achieve quantitative inhalation and delivery of drugs. The labor intensity is low, and it is helpful to ensure the accurate content of each component in the mixed anesthetic drug, thereby solving the technical problems described in the background technology.

[0007] In order to achieve the above purpose, the utility model discloses a technical solution:

[0008] A quantitative preparation device for anesthetic drugs, the key of which is: comprising a support platform for placing a mixed anesthetic drug receiving container, a plurality of quantitative preparation units are arranged above the support platform through a supporting structure, the quantitative preparation units include a drug temporary storage cylinder and a piston preparation cylinder arranged in parallel, the bottoms of the two cylinders are connected through a drug extraction pipeline with a first one-way valve, and the drug extraction pipeline is also connected to a drug administration pipeline with a second one-way valve; wherein: a lifting structure is arranged relative to the piston of the piston preparation cylinder, and the lifting structure is used to adjust the stroke of the piston so that the anesthetic drug can be quantitatively inhaled from the drug extraction pipeline or quantitatively delivered from the drug administration pipeline.

[0009] Furthermore, the lifting structure includes a lead screw as a piston shaft, a threaded sleeve is sleeved on the lead screw, and the threaded sleeve is connected to a servo motor via a transmission assembly; when the threaded sleeve rotates, it can drive the lead screw to rise or fall.

[0010] Furthermore, the transmission component includes a worm wheel sleeved on the outer periphery of the thread sleeve, and a worm connected to the output shaft of the servo motor, and the worm wheel and the worm are meshed with each other.

[0011] Furthermore, a mounting shell is arranged on the cylinder top of the piston type preparation cylinder, the worm gear is supported on the shell bottom of the mounting shell through a plane bearing, and the servo motor is fixed on the shell wall of the mounting shell.

[0012] Furthermore, a controller is also arranged on the supporting structure, and the controller is connected to the control circuit of each of the servo motors and is used to control the actions of each of the servo motors respectively.

[0013] Furthermore, the support structure includes a support base and a mounting frame suspended on the support base, and the mounting frame has a plurality of assembly openings evenly distributed on the circumference and corresponding to the quantitative dispensing units one by one.

[0014] Furthermore, the mounting frame is rotatably connected to the support seat, and a limiting component is provided between the mounting frame and the support seat, and the limiting component limits the rotation angle of the mounting frame within 360°.

[0015] Furthermore, the limiting assembly includes a stopper provided on the support seat and a turntable on the mounting frame, and the turntable is provided with a limiting column cooperating with the stopper.

[0016] Furthermore, the medicine temporary storage tube is made of a transparent material and is provided with a scale.

[0017] Furthermore, a gravity sensor is also arranged on the supporting platform.

[0018] Compared with the prior art, the remarkable effects of the utility model are:

[0019] (1) The utility model can simultaneously prepare multiple types of anesthetic drugs by cooperating with multiple quantitative preparation units, and because the lifting structures in each quantitative preparation unit operate independently, the dosage of each type of anesthetic drug can be controlled separately, which is conducive to improving the preparation efficiency of mixed anesthetic drugs;

[0020] (2) The lifting structure is used to accurately control the piston stroke to achieve quantitative inhalation and delivery of the drug, which can accurately control the dosage of various anesthetic drugs, thereby ensuring the accurate content of each component in the mixed anesthetic drug and better use effect;

[0021] (3) A medicine temporary storage cylinder, a medicine extraction pipeline and a medicine delivery pipeline are configured, and with the cooperation of the first one-way valve and the second one-way valve, during the medicine extraction operation, the medicine liquid can only flow from the medicine temporary storage cylinder into the piston-type preparation cylinder through the medicine extraction pipeline, and during the medicine delivery operation, the medicine liquid can only flow to the outside through the medicine delivery pipeline, that is, to ensure that the medicine is extracted when the piston rises and the medicine is delivered when the piston descends. The extraction and delivery of the medicine liquid are completed automatically, and the two do not interfere with each other. The function is more comprehensive and the application prospect is broader. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0023] Figure 1 The overall structural diagram of the quantitative preparation device of anesthetic agent in Example 1 (I);

[0024] Figure 2 The overall structural schematic diagram of the quantitative preparation device of anesthetic agent in Example 1 (II);

[0025] Figure 3 The overall structural schematic diagram of the anesthetic agent quantitative preparation device in Example 1 (III);

[0026] Figure 4 Schematic diagram of the structure of the quantitative preparation unit in Example 1 (I);

[0027] Figure 5 This is a structural schematic diagram of the quantitative preparation unit in Example 1 (II);

[0028] Figure 6 This is a schematic diagram of the internal structure of the piston-type preparation cylinder in Example 1;

[0029] Figure 7 for Figure 6 A partial enlarged view of the middle A part;

[0030] Figure 8 It is a structural schematic diagram of the quantitative preparation unit in Example 2;

[0031] Markings in the figure: 1-carrying platform, 2-support structure, 3-quantitative preparation unit, 301-medicine temporary storage cylinder, 302-piston preparation cylinder, 303-first one-way valve, 304-drug extraction pipeline, 305-second one-way valve, 306-drug administration pipeline, 307-piston, 308-lifting structure, 309-screw, 310-thread sleeve, 311-servo motor, 312-worm gear, 313-worm, 314-mounting shell, 315-plane bearing, 316-controller, 317-scale, 318-floating liquid level sensor, 201-support seat, 202-mounting frame, 203-assembly port, 204-stopper, 205-turntable, 206-limit column, 101-gravity sensor. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0034] Figure 1 and Figure 7 The first embodiment of the utility model is shown: an anesthetic agent quantitative preparation device, including a support platform 1 for placing a mixed anesthetic agent receiving container, a plurality of quantitative preparation units 3 are arranged above the support platform 1 through a supporting structure 2, and the quantitative preparation unit 3 includes a drug temporary storage cylinder 301 and a piston preparation cylinder 302 arranged in parallel, and the bottoms of the two cylinders are connected through a drug extraction pipeline 304 with a first one-way valve 303, and the drug extraction pipeline 304 is also connected to a drug delivery pipeline 306 with a second one-way valve 305; wherein: a lifting structure 308 is arranged relative to the piston 307 of the piston preparation cylinder 302, and the lifting structure 308 is used to adjust the stroke of the piston 307, so that the anesthetic agent can be quantitatively inhaled from the drug extraction pipeline 304 or quantitatively delivered from the drug delivery pipeline 306.

[0035] like Figures 4 to 7 As shown, the lifting structure 308 includes a lead screw 309 as the piston 307 shaft, a thread sleeve 310 is sleeved on the lead screw 309, and the thread sleeve 310 is connected to a servo motor 311 through a transmission assembly; when the thread sleeve 310 rotates, it can drive the lead screw 309 to rise or fall. The transmission assembly includes a worm wheel 312 sleeved on the outer periphery of the thread sleeve 310, and a worm 313 connected to the output shaft of the servo motor 311, and the worm wheel 312 and the worm 313 are meshed with each other. A mounting shell 314 is provided at the top of the piston-type preparation cylinder 302, and the worm wheel 312 is supported on the bottom of the mounting shell 314 through a plane bearing 315, and the servo motor 311 is fixed to the shell wall of the mounting shell 314. When the servo motor 311 rotates forward, it can drive the worm wheel 312 to rotate forward through the worm 313, thereby causing the threaded sleeve 310 to rotate forward. Under the action of the threaded sleeve 310, the lead screw 309 rises, thereby driving the piston 307 to rise, and the medicine is drawn from the medicine temporary storage cylinder 301 into the piston-type preparation cylinder 302 through the medicine extraction pipeline 304; conversely, when the servo motor 311 reverses, it can drive the worm wheel 312 to reverse through the worm 313, thereby causing the threaded sleeve 310 to reverse. Under the action of the threaded sleeve 310, the lead screw 309 descends, thereby driving the piston 307 to descend, and the medicine is output from the piston-type preparation cylinder 302 to the outside through the drug administration pipeline 306.

[0036] like Figure 3 As shown, a controller 316 is also provided on the support structure 2, and the controller 316 is connected to the control circuit of each servo motor 311, and is used to respectively control the action of each servo motor 311. The controller 316 includes a display module and a key module, and the user can set the parameters of each servo motor 311 one by one through the display module and the key module to ensure the accurate dosage of various anesthetic agents.

[0037] See also Figures 1 to 3 Specifically, the support structure 2 includes a support seat 201 and a mounting frame 202 suspended on the support seat 201, and the mounting frame 202 is evenly distributed with a plurality of assembly ports 203 corresponding to the quantitative dispensing units 3. Preferably, a servo motor 311 interface is reserved near the assembly port 203, so that each quantitative dispensing unit 3 can be disassembled from the mounting port, so as to facilitate the user to clean the quantitative dispensing unit 3. More preferably, the mounting shell 314 is detachably connected to the piston dispensing cylinder 302, so as to further facilitate the user to clean the inside of the cylinder body of the piston dispensing cylinder 302.

[0038] As can be seen from the figure, in order to facilitate the anesthesiologist to transfer the medicine to the medicine temporary storage cylinder 301, the mounting frame 202 is rotatably connected to the support seat 201. In order to reduce the interference with the control circuit of the servo motor 311, a limit assembly is also provided between the mounting frame 202 and the support seat 201. The limit assembly limits the rotation angle of the mounting frame 202 to within 360°. Specifically, the limit assembly includes a stopper 204 provided on the support seat 201 and a turntable 205 on the mounting frame 202. The turntable 205 is provided with a limit column 206 that cooperates with the stopper 204. In some other embodiments, the control circuit of the servo motor 311 can also be arranged in a manner such as a brush slip ring, so that there is no need to limit the rotation angle of the mounting frame 202.

[0039] from Figure 5 It can be seen that in order to facilitate the anesthesiologist to roughly estimate the volume of the anesthetic agent when adding the anesthetic agent to the temporary anesthetic agent storage tube 301, so as to avoid the situation that the anesthetic agent is insufficient during the mixing and preparation operation and the anesthetic agent is left over after the mixing and preparation operation is completed, causing waste, the temporary anesthetic agent storage tube 301 is made of a transparent material, and a scale 317 is also provided on the temporary anesthetic agent storage tube 301. Preferably, considering that some anesthetic agents are volatile, an end cap with an air inlet valve can be installed at the entrance of the temporary anesthetic agent storage tube 301 in actual use.

[0040] like Figure 2 and Figure 3 As shown, in order to compare the mixed medicine with the preset parameters of the servo motor 311 after preparation is completed, so as to facilitate the user to calibrate the preset parameters of the servo motor 311, a gravity sensor 101 is also arranged on the support platform 1.

[0041] Figure 8 The second embodiment of the utility model is shown. Compared with the first embodiment, in order to further improve the accuracy of the device and facilitate the user to calibrate the preset parameters of the servo motor 311, a floating liquid level sensor 318 is further provided in the medicine temporary storage cylinder 301.

[0042] In summary, the utility model can simultaneously prepare multiple types of anesthetic agents by cooperating with multiple quantitative preparation units 3, and because the lifting structures 308 in each quantitative preparation unit 3 operate independently, the dosage of each type of anesthetic agent can be controlled separately, which is beneficial to improving the preparation efficiency of the mixed anesthetic agent;

[0043] The lifting structure 308 is used to accurately control the stroke of the piston 307 to achieve quantitative inhalation and delivery of the medicine, and the dosage of various anesthetic drugs can be accurately controlled, thereby ensuring the accurate content of each component in the mixed anesthetic drug and better use effect; the medicine temporary storage cylinder 301, the medicine extraction pipeline 304 and the drug delivery pipeline 306 are configured, and with the cooperation of the first one-way valve 303 and the second one-way valve 305, during the medicine extraction operation, the medicine liquid can only flow from the medicine temporary storage cylinder 301 into the piston preparation cylinder 302 through the medicine extraction pipeline 304, and during the drug delivery operation, the medicine liquid can only flow to the outside from the drug delivery pipeline 306, that is, ensuring that the medicine is extracted when the piston 307 rises, and the medicine is delivered when the piston 307 descends. The extraction and delivery of the medicine liquid are automatically completed, and the two do not interfere with each other. The function is more comprehensive and the application prospect is broader.

[0044] Finally, it should be noted that the technical solution disclosed above is only a preferred embodiment of the present utility model, and it certainly cannot be used to limit the scope of rights of the present utility model. Ordinary technicians in this field can understand that all or part of the processes of the above-mentioned embodiments and equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A quantitative preparation device for anesthetic agents, characterized in that: It comprises a support platform for placing a mixed anesthetic agent receiving container, a plurality of quantitative preparation units are arranged above the support platform through a supporting structure, the quantitative preparation units include a medicine temporary storage cylinder and a piston preparation cylinder arranged in parallel, the bottoms of the two cylinders are connected through a drug extraction pipeline with a first one-way valve, and the drug extraction pipeline is also connected with a drug administration pipeline with a second one-way valve; wherein: a lifting structure is arranged relative to the piston of the piston preparation cylinder, and the lifting structure is used to adjust the stroke of the piston so that the anesthetic agent can be quantitatively inhaled from the drug extraction pipeline or quantitatively delivered from the drug administration pipeline; wherein: the lifting structure comprises a screw as a piston shaft, a threaded sleeve is sleeved on the screw, and the threaded sleeve is connected to a servo motor through a transmission component; when the threaded sleeve rotates, it can drive the screw to rise or fall.

2. The anesthetic agent quantitative preparation device according to claim 1, characterized in that: The transmission component comprises a worm wheel sleeved on the outer periphery of the thread sleeve, and a worm connected to the output shaft of the servo motor, and the worm wheel and the worm are meshed with each other.

3. The anesthetic agent quantitative preparation device according to claim 2, characterized in that: A mounting shell is arranged on the cylinder top of the piston type dispensing cylinder, the worm gear is supported on the shell bottom of the mounting shell through a plane bearing, and the servo motor is fixed on the shell wall of the mounting shell.

4. The anesthetic agent quantitative preparation device according to any one of claims 1 to 3, characterized in that: A controller is also provided on the supporting structure. The controller is connected to the control circuit of each servo motor and is used to control the action of each servo motor respectively.

5. The anesthetic agent quantitative preparation device according to claim 1 or 3, characterized in that: The support structure comprises a support seat and a mounting frame suspended on the support seat, and a plurality of assembly openings corresponding to the quantitative dispensing units are evenly distributed on the circumference of the mounting frame.

6. The anesthetic agent quantitative preparation device according to claim 5, characterized in that: The mounting frame is rotatably connected to the support seat, and a limiting component is also arranged between the mounting frame and the support seat, and the limiting component limits the rotation angle of the mounting frame within 360°.

7. The anesthetic agent quantitative preparation device according to claim 6, characterized in that: The limiting assembly comprises a stopper arranged on the support seat and a turntable on the mounting frame, and the turntable is provided with a limiting column matched with the stopper.

8. The anesthetic agent quantitative preparation device according to claim 1 or 7, characterized in that: The medicine temporary storage tube is made of a transparent material and is also provided with scales.

9. The anesthetic agent quantitative preparation device according to claim 8, characterized in that: A gravity sensor is also arranged on the bearing platform.

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