CN220159894U - Liquid medicine mixing device - Google Patents

Abstract

The utility model relates to the technical field of interventional operations, in particular to a liquid medicine mixing device, which comprises: a first container for containing a first liquid medicine, a second container for containing a second liquid medicine, an infusion tube, a first infusion pump, a second infusion pump and a liquid mixing box; the first container and the second container are respectively connected with the liquid mixing box through corresponding liquid conveying pipes, and the first liquid conveying pump and the second liquid conveying pump are connected with corresponding liquid conveying pipes and are used for respectively controlling the volumes of the first liquid medicine and the second liquid medicine entering the liquid mixing box. According to the technical scheme provided by the utility model, the first container, the second container and the liquid mixing box can be communicated through the infusion tube, the contrast agent and the normal saline directly enter the liquid mixing box after leaving the first container or the second container, and the contrast agent and the normal saline do not need to be mixed after being sucked, so that the loss of the liquid medicine in the transfer container is reduced, and the concentration accuracy of the mixed liquid medicine is improved.

Description

Liquid medicine mixing device

Technical Field

The utility model relates to the technical field of interventional operations, in particular to a liquid medicine mixing device.

Background

Interventional surgery is a generic term for a series of techniques for performing diagnosis or minimally invasive treatment by introducing a specific instrument such as a guide wire or a catheter into a lesion site through a blood vessel of a human body by making a minute wound in the human body and guiding and monitoring the instrument with a DSA contrast medium. When DSA contrast imaging is used, the mixed liquid medicine is required to be accurately and rapidly injected into a human blood vessel, for example, the mixed liquid medicine formed by mixing contrast agent and normal saline according to a certain concentration ratio.

At present, for the blending mode of mixed liquid medicine, a doctor usually carries out manual blending or blending through a double-barrel high-pressure injector, the manual blending precision is low, the operation is inconvenient, the contrast liquid and the normal saline are required to be sucked by adopting the mode of the double-barrel high-pressure injector, and after the contrast agent and the normal saline are respectively sucked by adopting a contrast agent bottle and a normal saline bottle, the Y-shaped catheter is used for connection and mixing, and the same process is complicated.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is how to improve the efficiency of mixing the liquid medicine.

In order to solve the technical problems, the embodiment of the utility model provides a liquid medicine mixing device, which adopts the following technical scheme:

the medicine liquid mixing device comprises: a first container for containing a first liquid medicine, a second container for containing a second liquid medicine, an infusion tube, a first infusion pump, a second infusion pump and a liquid mixing box; the first container and the second container are respectively connected with the liquid mixing box through corresponding liquid conveying pipes, and the first liquid conveying pump and the second liquid conveying pump are connected with corresponding liquid conveying pipes and are used for respectively controlling the volumes of the first liquid medicine and the second liquid medicine entering the liquid mixing box.

Further, a concentration detector is arranged on the liquid mixing box and used for detecting the medicine concentration of the mixed liquid medicine after the first liquid medicine and the second liquid medicine are mixed.

Further, a liquid level detector is arranged on the liquid mixing box and is used for detecting the liquid medicine amount of the mixed liquid medicine formed by mixing the first liquid medicine and the second liquid medicine.

Further, the liquid medicine mixing device also comprises an injector, a connecting pipe, a control valve and a plug; the injector is connected with the liquid mixing box through the connecting pipe, the height of the liquid mixing box is higher than that of the injector, and the control valve is connected with the connecting pipe and used for opening or closing the connecting pipe to communicate the liquid mixing box with the injector; the plug is movably arranged at the outlet of the injector and is used for closing the outlet of the injector.

Further, the included angle of the axis of the injector relative to the horizontal plane is 5-30 degrees.

Further, the liquid medicine mixing device further comprises a liquid conveying component, the liquid conveying component comprises a servo motor and a screw rod sliding block, the screw rod sliding block is connected with the piston of the injector, and the servo motor is used for controlling the screw rod sliding block to drive the piston of the injector to move.

Further, a pressure sensor is arranged between the piston and the push rod of the injector and is used for detecting the pressure value of the injector when the injector sends liquid.

Further, the liquid medicine mixing device further comprises a liquid hanging rod, the liquid hanging rod is fixedly arranged on the device platform, the first container and/or the second container are/is arranged on the liquid hanging rod, and the liquid hanging rod is used for lifting the height of the first container and/or the second container.

Further, the infusion pump is a peristaltic pump.

Further, the liquid medicine mixing device further comprises a display, wherein the display is electrically connected with the concentration detector or the liquid level detector and is used for displaying the medicine concentration or the liquid medicine amount of the mixed liquid medicine.

Compared with the prior art, the embodiment of the utility model has the following main beneficial effects:

the device platform is used for bearing other parts except the device platform of the liquid medicine mixing device, the first container, the second container and the liquid mixing box are communicated through the infusion tube, the contrast agent and the normal saline directly enter the liquid mixing box after leaving the first container or the second container, the contrast agent and the normal saline are not required to be mixed after being absorbed, the loss of the liquid medicine in the transfer container is reduced, and the concentration accuracy of the mixed liquid medicine is improved. And the flow is controlled through the infusion pump, and the concentration of the contrast agent or the physiological saline mixed by the liquid mixing box can be accurately controlled through the infusion pump, so that the concentration accuracy of the mixed liquid medicine is further improved.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being apparent that the drawings in the following description are some embodiments of the present utility model and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a device for mixing liquid medicines according to an embodiment of the present utility model.

Reference numerals:

the chemical mixing device 100, the device platform 101, the first container 102, the second container 103, the infusion tube 104, the first infusion pump 105, the mixing box 106, the concentration detector 107, the liquid level detector 108, the syringe 109, the connecting tube 110, the control valve 111, the liquid feeding assembly 112, the servo motor 1121, the screw slider 1122, the pressure sensor 113, the display 114, and the second infusion pump 115.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1, fig. 1 shows an internal structure of a liquid medicine mixing device according to the present embodiment, and a liquid medicine mixing device 100 includes: a device platform 101, a first container 102 containing a first medical fluid, a second container 103 containing a second medical fluid, an infusion tube 104, a first infusion pump 105, a second infusion pump 115, and a mixing box 106; the first container 102 and the second container 103 are respectively connected with the liquid mixing box 106 through corresponding infusion pipes 104, and the first infusion pump 105 and the second infusion pump 115 are connected with the corresponding infusion pipes 104 for respectively controlling the volumes of the first liquid medicine and the second liquid medicine entering the liquid mixing box 106.

In the present utility model, the first medical fluid is a contrast medium, and the second medical fluid is a physiological saline, for example, the first container 102 is a container for containing a contrast medium, and the second container 103 is a container for containing a physiological saline. The first container 102 and the second container 103 are respectively communicated with the liquid mixing box 106 through the infusion tube 104, and contrast medium and normal saline are respectively sent into the liquid mixing box 106 through corresponding infusion pumps to be mixed, and mixed liquid medicine is formed.

It will be appreciated that there are two infusion tubes 104, and that one infusion pump 105 is provided on each infusion tube 104, and that the first infusion pump 105 and the second infusion pump 115 control the flow of contrast medium and physiological saline into the mixing box 106, respectively, and adjust the flow rates of the contrast medium and physiological saline to adjust the concentration of the contrast medium.

The device platform 101 is used for bearing other parts except the device platform 101 of the liquid medicine mixing device, the first container 102, the second container 103 and the liquid mixing box 106 are communicated through the infusion tube 104, contrast medium and normal saline directly enter the liquid mixing box 106 after leaving the first container 102 or the second container 103, the contrast medium and the normal saline are not required to be respectively sucked through the double-gun barrel injector and then mixed, the loss of the liquid medicine in the transit container is reduced, and the concentration accuracy of the mixed liquid medicine is improved. And through first infusion pump 105 and second infusion pump 115 control flow, the concentration of contrast medium or normal saline that mix of mixing box 106 can be through first infusion pump 105 and the accurate control of second infusion pump 115, further promotes the concentration accuracy of mixed liquid medicine.

In an embodiment of the present utility model, the first infusion pump 105 and the second infusion pump 115 are peristaltic pumps that adjust the amount of contrast and saline entering the mixing box 106 by controlling the rotational speed of their motors. The peristaltic pump controls the flow of the liquid medicine, and the peristaltic pump is not contacted with the liquid medicine, so that the pollution to the liquid medicine is avoided; the peristaltic pump is connected with the infusion tube 104 in a simple manner, and the infusion tube 104 is only required to be wound on a peristaltic pump control part.

The sum of the capacities of the two liquid taking containers of the double-barrel high-pressure injector in the prior art is only 200ml, if the operation requirement exceeds the upper limit of the capacity, contrast liquid mixing is needed again, and the consumption of consumable materials is increased due to the fact that the Y-shaped catheter belongs to disposable consumable materials and the contrast liquid is diluted again. In the embodiment of the utility model, the volume of the liquid mixing box 106 is more than 400ml, and can be particularly 500ml, so that the maximum volume of 400ml required in the existing interventional operation can be met, namely, the liquid medicine mixing device only needs to complete liquid medicine mixing once in the operation process, and the consumption of consumable materials is reduced under the condition that the liquid medicine mixing volume required by the operation is large.

In other embodiments of the present utility model, the liquid medicine mixing device further includes more containers (not shown) and liquid medicines, specifically, a third liquid medicine, a fourth liquid medicine, and a third container and a fourth container for containing the third liquid medicine and the third liquid medicine, where the third container and the fourth container are connected to the liquid mixing box 106 through corresponding infusion tubes 104, so that mixing of four liquid medicines can be achieved.

In the embodiment of the present utility model, the concentration detector 107 is disposed on the mixing box 106, and is configured to detect the drug concentration of the mixed liquid after the first liquid and the second liquid are mixed.

The concentration detector 107 is used to detect the concentration of the contrast agent in the mixed liquor to ensure that the concentration of the contrast agent meets the requirements of the interventional procedure.

Specifically, the concentration detector 107 detects the current concentration of the diluted contrast agent using a change in the propagation speed of the ultrasonic wave in different media.

In the embodiment of the present utility model, the liquid level detector 108 is disposed on the liquid mixing box 106, and is configured to detect the liquid medicine amount of the mixed liquid medicine formed by mixing the first liquid medicine and the second liquid medicine.

The liquid level detector 108 detects the liquid medicine amount of the mixed liquid medicine so that a doctor can know the current residual amount of the mixed liquid medicine before and during the operation, and the interventional operation can be smoothly performed.

In the embodiment of the utility model, a graduated scale is arranged on the mixing box 106 or on the device platform 101 near the mixing box 106, which plays an auxiliary role in observation so that a doctor can read and determine the volume of the mixed solution in the mixing box 106.

In the embodiment of the present utility model, the liquid medicine mixing device further includes a syringe 109, a connection pipe 110, a control valve 111, and a plug (not shown); the injector 109 is connected with the liquid mixing box 106 through the connecting pipe 110, the height of the liquid mixing box 106 is higher than that of the injector 109, the control valve 111 is connected with the connecting pipe 110, and the control valve is used for opening or closing the connecting pipe 110 to communicate the liquid mixing box 106 with the injector 109; the plug is movably arranged at the outlet of the syringe 109 and is used for closing the outlet of the syringe 109.

The control valve 111 is a pinch valve (pressure break valve), the connecting pipe 110 is a flexible pipe, and a plug is movably arranged at the outlet of the syringe 109 and is used for sealing the syringe 109, so that the mixed liquid medicine can be fed into the liquid mixing box 106 when the syringe 109 is exhausted.

The syringe 109 operates as follows:

after the contrast agent is mixed with the physiological saline to form a mixed liquor, the control valve 111 opens the connecting pipe 110 to communicate the mixed liquor box 106 with the syringe 109, and since the height of the mixed liquor box 106 is higher than that of the syringe 109, the mixed liquor can directly flow into the syringe 109 from the mixed liquor box 106, and after the mixed liquor has flowed into the syringe 109, the syringe 109 is exhausted.

Because the plug blocks the outlet of the syringe 109, the piston of the syringe 109 is pushed to return the mixed liquid medicine into the mixed liquid medicine box 106, and when the mixed liquid medicine is contained in the mixed liquid medicine box 106, the air bubble in the syringe 109 can be determined to be absent, and the air exhausting process is completed. Further, whether the air discharge is completed may be determined by detecting whether the mixed medical fluid is present in the fluid mixing cassette 106 by the fluid level detector 108.

After the exhaust is completed, the control valve 111 closes the connection pipe 110 to disconnect the liquid mixing box 106 from the syringe 109, removes the plug, connects the outlet of the syringe 109 with the high-pressure long tube (not shown), pushes the piston of the syringe 109, and sends the mixed liquid medicine into the high-pressure long tube to achieve the mixed liquid medicine into the blood vessel of the human body.

In the embodiment of the present utility model, the included angle between the axis of the injector 109 and the horizontal plane is 5-30 degrees.

The axis of the injector 109 is close to one end of the connecting pipe 110 to form an inclined angle with respect to the horizontal plane, and the specific angle range of the inclined angle is 5-30 degrees, and the injector 109 is obliquely arranged so that bubbles can be gathered at a position close to the connecting pipe 110, thereby facilitating the exhaust of the injector 109.

Preferably, the axis of the syringe 109 is angled at 15 degrees relative to the horizontal.

In the embodiment of the present utility model, the liquid medicine mixing device further includes a liquid feeding assembly 112, the liquid feeding assembly 112 includes a servo motor 1121 and a screw slider 1122, the screw slider 1122 is connected to the piston of the syringe 109, and the servo motor 1121 is used for controlling the movement of the screw slider 1122.

The push rod of syringe 109 is connected with the piston, promotes the push rod and can control the piston to remove, and lead screw slider 1122 indirect control piston removes to in the realization is mixed liquid medicine injection mixed liquid box 106 or high calendering long tube, can reduce doctor's manual operation through servo motor 1121 control piston moving's mode, and servo motor 1121's control process is more steady and the precision is higher.

In the embodiment of the present utility model, a pressure sensor 113 is disposed between the piston and the push rod of the syringe, for detecting a pressure value when the syringe 109 is fed.

The pressure sensor 113 is fixed on the top end of the push rod, and the stress surface is connected with the piston of the injector 109. The pressure sensor 113 detects the pressure of the syringe 109 when the mixed liquid medicine is fed to the high-pressure long tube, and in the liquid feeding process, if the pressure value is reduced, the syringe 109 can be identified as having a liquid leakage condition, and if the pressure value is increased, the syringe 109 can be identified as having a blockage condition in the infusion to remind medical staff.

In this embodiment of the present utility model, the liquid medicine mixing device further includes a liquid hanging rod (not shown), the liquid hanging rod is fixedly disposed on the device platform 101, the first container 102 and/or the second container 103 are disposed on the liquid hanging rod, and the liquid hanging rod lifts the height of the first container 102 and/or the second container 103.

The hanging rod can lift the height of the first container 102 and the second container 103, and the contrast medium and the physiological saline flow into the infusion tube 104 under the action of gravity, so that the peristaltic pump can control the contrast medium and the physiological saline to enter the liquid mixing box 106.

In the embodiment of the present utility model, the liquid medicine mixing device further includes a display 114, where the display 114 is electrically connected to the concentration detector 107 or the liquid level detector 108, and is used for displaying the medicine concentration or the liquid medicine amount of the mixed liquid medicine.

The display 114 is used for displaying the relative parameters such as the planned mixing volume of the contrast medium and the physiological saline, the volume of the mixed liquid medicine in the current mixing box, the concentration of the contrast medium, and the pressure value when the syringe 109 is fed.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims (10)

1. A liquid medicine mixing device, characterized by comprising: a first container for containing a first liquid medicine, a second container for containing a second liquid medicine, an infusion tube, a first infusion pump, a second infusion pump and a liquid mixing box; the first container and the second container are respectively connected with the liquid mixing box through corresponding liquid conveying pipes, and the first liquid conveying pump and the second liquid conveying pump are connected with corresponding liquid conveying pipes and are used for respectively controlling the volumes of the first liquid medicine and the second liquid medicine entering the liquid mixing box.

2. The drug solution mixing device according to claim 1, wherein a concentration detector is provided on the drug solution mixing box for detecting a drug concentration of the mixed drug solution after the first drug solution and the second drug solution are mixed.

3. The liquid medicine mixing device according to claim 2, wherein a liquid level detector is provided on the liquid medicine mixing box for detecting the liquid medicine amount of the mixed liquid medicine formed by mixing the first liquid medicine and the second liquid medicine.

4. The medical fluid mixing device according to claim 3, further comprising a syringe, a connection tube, a control valve, and a plug; the injector is connected with the liquid mixing box through the connecting pipe, the height of the liquid mixing box is higher than that of the injector, and the control valve is connected with the connecting pipe and used for opening or closing the connecting pipe to communicate the liquid mixing box with the injector; the plug is movably arranged at the outlet of the injector and is used for closing the outlet of the injector.

5. The medical fluid mixing device according to claim 4, wherein the angle of the axis of the syringe with respect to the horizontal plane is 5-30 degrees.

6. The medical fluid mixing device of claim 4, further comprising a fluid delivery assembly, wherein the fluid delivery assembly comprises a servo motor and a screw slider, wherein the screw slider is connected with a piston of the syringe, and the servo motor is used for controlling the screw slider to drive the piston of the syringe to move.

7. The medical fluid mixing device according to claim 6, wherein a pressure sensor is provided between the piston and the plunger of the syringe for detecting a pressure value when the syringe is fed with fluid.

8. The medical fluid mixing device according to any one of claims 1-7, further comprising a liquid hanging rod, wherein the liquid hanging rod is fixedly arranged on the device platform, the first container and/or the second container are arranged on the liquid hanging rod, and the liquid hanging rod lifts the height of the first container and/or the second container.

9. The medical fluid mixing device of any one of claims 1-7, wherein the infusion pump is a peristaltic pump.

10. The medical fluid mixing device according to any one of claims 3-7, further comprising a display electrically connected to the concentration detector or the liquid level detector for displaying a drug concentration or a medical fluid amount of the mixed medical fluid.