Surgical cassette system

Abstract

The utility model provides an operation box system, and relates to the technical field of surgical operation systems. The surgical box system comprises a flushing source part, a surgical box, a perfusion instrument and a pressure air source part, the surgical box is in fluid communication with the flushing source part, the perfusion instrument and the pressure gas source part, the flushing source part is used for inputting perfusate into the surgical box, and the pressure gas source part is used for inputting pressure gas into the surgical box; a control piece is mounted between the flushing source piece and the operation box and controls the flushing source piece to be connected or disconnected with the operation box; and a gas flow sensor is arranged between the pressure gas source piece and the operation box. The operation box system solves the technical problems that in the prior art, in an ophthalmologic operation system, the accuracy rate of liquid flow measurement is low, and cost is high.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical operation systems, in particular to a surgical box system. Background Art

[0002] Ophthalmic surgical systems typically include two main functions: fluid infusion and fluid aspiration. The fluid flows through the surgical cassette, tubing, and instruments. Real-time measurement of fluid flow within the cassette helps maintain stable intraocular pressure and improves device safety.

[0003] Some existing ophthalmic surgical systems use ultrasonic sensors to measure the flow rate of the irrigation liquid within the surgical cassette, using changes in ultrasonic vibrations to measure the flow rate. This complex system requires calibration before each use to avoid component inconsistencies, resulting in complex operation and low reliability. Some ophthalmic surgical systems also use Hall effect liquid flow meters to measure the flow rate in the aspiration line. These systems can only determine whether there is flow in the aspiration line and cannot measure and feedback intermediate flow values, resulting in low accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a surgical box system to alleviate the technical problems of low liquid flow measurement accuracy and high cost in ophthalmic surgical systems in the prior art.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] The surgical box system provided by the utility model comprises a flushing source component, a surgical box, an irrigation device and a pressure gas source component;

[0007] The surgical box is in fluid communication with the flushing source, the perfusion device, and the pressure gas source. The flushing source is used to input perfusion liquid into the surgical box, and the pressure gas source is used to input pressurized gas into the surgical box.

[0008] A control component is installed between the flushing source component and the surgical box, and the control component controls the flushing source component to be connected or disconnected from the surgical box;

[0009] A gas flow sensor is installed between the pressure gas source component and the operating box.

[0010] Furthermore, the liquid flow value in the surgical box is linearly correlated with the gas flow value measured by the gas flow sensor.

[0011] Furthermore, the surgical box is connected to the pressure gas source component through an air pipe, and the gas flow sensor is installed on the air pipe.

[0012] Furthermore, the surgical box is connected to the perfusion device through a connecting tube.

[0013] Furthermore, the surgical box is provided with a cavity, which is communicated with the flushing source, and is communicated with the pressure gas source through the air tube, and is communicated with the irrigation instrument through the communicating tube.

[0014] Furthermore, the surgical box is provided with a plurality of cavities, which are connected in series, and the cavities are connected with the flushing source, the pressure gas source through the trachea, and the irrigation device through the connecting tube.

[0015] Furthermore, the cavity and the perfusion device are respectively located on both sides of the surgical box, one end of the communicating tube is communicated with the cavity, and the other end passes through the surgical box and is communicated with the perfusion device.

[0016] Furthermore, the control member and the cavity are located on the same side of the surgical box.

[0017] Furthermore, the surgical box system further includes a control component connected to the control member.

[0018] Furthermore, the surgical box system further includes a clamping device, and the clamping device is connected to the surgical box.

[0019] Based on the above technical solutions, the technical effects that can be achieved by this utility model are analyzed as follows:

[0020] The present invention provides a surgical box system comprising a flushing source, a surgical box, an irrigation device, and a pressure gas source. The surgical box is fluidically connected to the flushing source, irrigation device, and pressure gas source. The flushing source is used to input irrigation liquid into the surgical box, and the pressure gas source is used to input pressurized gas into the surgical box. A control unit is installed between the flushing source and the surgical box to control whether the flushing source is connected to or disconnected from the surgical box. A gas flow sensor is installed between the pressure gas source and the surgical box. When using the surgical box system, the control unit first controls the flushing source to connect to the surgical box, and uses the flushing source to replenish irrigation liquid into the surgical box. When the irrigation liquid in the surgical box reaches a sufficient level, the control unit controls the flushing source to disconnect from the surgical box. Then, the pressure gas source inputs pressurized gas into the surgical box. The pressurized gas is the power source for liquid flow. The inflow of pressurized gas compresses the liquid outflow, thereby forcing the liquid in the surgical box to flow toward the irrigation device, thereby causing the irrigation liquid to flow from the irrigation device into the patient's eyeball. When the pressure gas source inputs pressurized gas into the surgical box, the pressurized gas will flow through the gas flow sensor, which can monitor the volume flow of the pressurized gas entering the surgical box in real time, thereby achieving the purpose of real-time measurement of the liquid flow in the surgical box.

[0021] This surgical cassette system measures the flow of pressurized gas instead of the liquid flow in the cassette. The gas flow sensor offers high accuracy and stability, and does not require calibration every time the system is turned on. Furthermore, the gas flow sensor is reusable within the cassette system, reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A scatter plot of liquid flow and air flow in a surgical box system provided by an embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of a surgical box system provided by an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of the structure of the surgical box system provided in the embodiment of the utility model Figure 1 ;

[0026] Figure 4 A schematic diagram of the structure of the surgical box system provided in the embodiment of the utility model Figure 2 .

[0027] icon:

[0028] 30-flushing source; 20-cavity; 120-trachea; 10-gas flow sensor; 110-pressure gas source; 40-control component; 210-connecting pipe; 50-perfusion instrument; 140-clamping device; 410-control component; 220-surgical box. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in 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 some embodiments of the present invention, not all 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.

[0030] 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 claimed invention, 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 are also within the scope of protection of the present invention.

[0031] 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.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0036] Some existing ophthalmic surgical systems use ultrasonic sensors to measure the flow rate of the irrigation liquid. These sensors measure the flow rate of the irrigation liquid in the surgical cassette 220 through changes in ultrasonic vibrations. This system is complex and requires calibration before each use to avoid component inconsistencies, resulting in complex operation and low reliability. Furthermore, some ophthalmic surgical systems use Hall effect liquid flow meters to measure the flow rate in the aspiration line. These systems can only determine whether there is flow in the aspiration line and cannot measure and feedback intermediate flow values, resulting in low accuracy.

[0037] In view of this, the surgical box system provided by the embodiment of the present invention includes a flushing source component 30, a surgical box 220, an perfusion device 50 and a pressure gas source component 110; the surgical box 220 is fluidically connected to the flushing source component 30, the perfusion device 50 and the pressure gas source component 110, the flushing source component 30 is used to input perfusion liquid into the surgical box 220, and the pressure gas source component 110 is used to input pressurized gas into the surgical box 220; a control component 40 is installed between the flushing source component 30 and the surgical box 220, and the control component 40 controls the connection or disconnection of the flushing source component 30 and the surgical box 220; a gas flow sensor 10 is installed between the pressure gas source component 110 and the surgical box 220.

[0038] Specifically, the gas flow sensor 10 is a flow meter for measuring the flow rate of a pipeline fluid.

[0039] See also Figure 2 When using the surgical cassette system, the control unit 40 first controls the connection between the flushing source unit 30 and the surgical cassette 220, using the flushing source unit 30 to replenish the perfusion liquid into the surgical cassette 220. When the perfusion liquid in the surgical cassette 220 reaches a sufficient level, the control unit 40 controls the flushing source unit 30 to disconnect from the surgical cassette 220. Then, the pressure gas source unit 110 inputs pressurized gas into the surgical cassette 220. Pressurized gas is the power source for liquid flow. The inflow of pressurized gas forces the liquid out, forcing the liquid in the surgical cassette 220 to flow toward the perfusion device 50, thereby causing the perfusion liquid to flow from the perfusion device 50 into the patient's eyeball. When the pressure gas source unit 110 inputs pressurized gas into the surgical cassette 220, the pressurized gas flows through the gas flow sensor 10. The gas flow sensor 10 can monitor the volume flow of the pressurized gas entering the surgical cassette 220 in real time, thereby achieving the purpose of real-time measurement of the liquid flow in the surgical cassette 220. The surgical cassette system measures the flow of pressurized gas instead of the liquid in the surgical cassette 220. The gas flow sensor 10 is highly accurate and stable, and does not require calibration each time the system is turned on. Furthermore, the gas flow sensor 10 is reusable within the surgical cassette system, reducing operating costs.

[0040] The feasibility test of the surgical box system is described in detail below:

[0041] To verify the feasibility of the surgical cassette system's measurement method, a test was conducted using a chamber substituted for the human eye. The chamber's volume was set to 6.5 ml (this value is for illustration only and is not intended to be limiting). Furthermore, to verify and calibrate the test results, a liquid flow sensor was installed in the connecting tube 210 between the surgical cassette 220 and the perfusion device 50. This liquid flow sensor was only used during testing and was not required in the actual surgical cassette system.

[0042] See Table 1, which is a test comparison table:

[0043]

[0044]

[0045] Table 1

[0046] According to the Poiseuille formula, when the fluid moves in a laminar flow in a horizontal circular tube, its volume flow rate Q = Δp / R, and the flow rate value can be calculated using this formula. Among them, Q is the volume flow rate of the liquid, and Δp is the pressure difference at both ends of the circular tube. R is the flow resistance. See Table 2, which is a flow resistance value comparison table; if there is no gas flow sensor 10, for the above data, the flow resistance is calculated using the Poiseuille formula, and it can be seen that the flow resistance is constantly changing. This is because the cavity 20 of the surgical box 220 is not a circular tube, and there are some changes in the inner diameter at the joints and at the connection with the perfusion device 50, resulting in a large deviation in the calculation of the Poiseuille formula. It is worth noting that the air pressure at the end of the perfusion device 50 is the indoor atmospheric pressure, so the air pressure output by the pressure source is the pressure difference.

[0047]

[0048] Table 2

[0049] See also Figure 1 , Figure 1 It is a scatter plot of liquid flow and air flow; by introducing the gas flow sensor 10 and using the liquid flow sensor to compare and calibrate the gas flow sensor 10, the corresponding correlation, regression line and regression equation formula of the two can be obtained; according to the regression line, it can be seen that the two are linearly correlated.

[0050] In order to verify the scheme, the regression equation formula was input into the surgical box system, and the value of the gas flow sensor 10 was read as 75cc / min. The liquid flow rate y=0.655*75+8.7077=57.8cc / min was substituted into the above regression equation formula to calculate the liquid flow rate; the actual measured liquid flow rate was 58.1cc / min.

[0051] The structure of the surgical box system is described in detail below:

[0052] In an optional solution of the embodiment of the present utility model, the liquid flow value in the surgical box 220 is linearly correlated with the gas flow value measured by the gas flow sensor 10.

[0053] Specifically, see Figure 1 , with the liquid flow value as x and the gas flow value as y, y = a×x+b, where a and b are constants.

[0054] The liquid flow value in the surgical box 220 is linearly correlated with the gas flow value measured by the gas flow sensor 10. The liquid flow value can be calculated by calculating the gas flow value measured by the gas flow sensor 10, thereby realizing the measurement of the liquid flow value.

[0055] In the optional solution of the embodiment of the present utility model, see Figures 2 to 4 The surgical box 220 is connected to the pressure gas source 110 through the air pipe 120 , and the gas flow sensor 10 is installed on the air pipe 120 .

[0056] Specifically, the pressure gas source comprises a valve island composed of a plurality of electromagnetic valves, which can output stable pressure gas. The gas flow sensor 10 is installed between the pressure gas source and the surgical box 220 and is connected to each other through the air pipe 120.

[0057] The air tube 120 enables communication between the surgical box 220 and the pressure air source 110 .

[0058] In the optional solution of the embodiment of the present utility model, see Figures 2 to 4 The surgical box 220 is connected to the perfusion device 50 through the connecting tube 210.

[0059] Specifically, the irrigation instrument 50 is configured as a vitrectomy surgical instrument or a phacoemulsification handle. The connecting tube 210 is configured as a silicone tube.

[0060] The connecting tube 210 enables the surgical cassette 220 to communicate with the irrigation device 50 .

[0061] In an optional solution of the embodiment of the present invention, the surgical box 220 is provided with a cavity 20 , which is connected to the flushing source 30 , and is connected to the pressure gas source 110 through the trachea 120 , and is connected to the perfusion device 50 through the connecting tube 210 .

[0062] The cavity 20 enables the surgical box 220 to carry the perfusion fluid.

[0063] As another embodiment, see Figure 4 The surgical box 220 is provided with a plurality of cavities 20 , which are connected in series, and the cavities 20 are connected to the flushing source 30 , to the pressure gas source 110 through the trachea 120 , and to the irrigation device 50 through the connecting tube 210 .

[0064] Specifically, two, three, five, etc. cavities 20 are provided, and the plurality of cavities 20 are connected in series.

[0065] The plurality of cavities 20 are connected in series, so that the surgical box 220 can carry the perfusion fluid.

[0066] In an optional solution of the embodiment of the present invention, the cavity 20 and the perfusion device 50 are respectively located on both sides of the surgical box 220, one end of the connecting tube 210 is connected to the cavity 20, and the other end passes through the surgical box 220 to communicate with the perfusion device 50.

[0067] Specifically, the cavity 20 is installed on the back of the surgical box 220, and the perfusion device 50 is located on the front of the surgical box 220, which is convenient for using the perfusion device 50.

[0068] The arrangement of the connecting tube 210 enables the cavity 20 to be located at the back of the surgical box 220 and the perfusion device 50 to be located at the front of the surgical box 220 .

[0069] In an optional solution of the embodiment of the present invention, the control member 40 and the cavity 20 are located on the same side of the surgical box 220 .

[0070] Specifically, the control component 40 is configured as a switch valve, the flushing source component 30 is also located on the back of the surgical box 220, and the switch valves are distributed on the back of the surgical box 220. Furthermore, the switch valves are configured as rubber pads.

[0071] The control component 40 is used to control the connection or disconnection between the flushing source component 30 and the surgical box 220.

[0072] In an optional solution of the embodiment of the present utility model, the surgical box system further includes a control component 410 , which is connected to the control member 40 .

[0073] Specifically, the irrigation source 30 carries ophthalmic surgical irrigation fluid.

[0074] The control component 410 is used to adjust the opening and closing of the switch valve.

[0075] In an optional solution of the embodiment of the present utility model, the surgical box system further includes a clamping device 140 , which is connected to the surgical box 220 .

[0076] The surgical box 220 is fixed to the machine by the clamping device 140 , thereby improving the stability of the surgical box 220 .

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A surgical box system, characterized in that: include: A flushing source (30), a surgical cassette (220), an irrigation device (50), and a pressure gas source (110); The surgical box (220) is in fluid communication with the flushing source (30), the perfusion device (50) and the pressure gas source (110), wherein the flushing source (30) is used to input perfusion liquid into the surgical box (220), and the pressure gas source (110) is used to input pressurized gas into the surgical box (220); A control component (40) is installed between the flushing source component (30) and the surgical box (220), and the control component (40) controls the flushing source component (30) to be connected to or disconnected from the surgical box (220); A gas flow sensor (10) is installed between the pressure gas source component (110) and the surgical box (220).

2. The surgical box system according to claim 1, characterized in that The liquid flow value in the surgical box (220) is linearly correlated with the gas flow value measured by the gas flow sensor (10).

3. The surgical box system according to claim 1, wherein: The surgical box (220) is in communication with the pressure gas source component (110) via an air pipe (120), and the gas flow sensor (10) is installed on the air pipe (120).

4. The surgical box system according to claim 3, characterized in that The surgical box (220) is connected to the perfusion device (50) via a connecting tube (210).

5. The surgical box system according to claim 4, characterized in that The surgical box (220) is provided with a cavity (20), the cavity (20) is communicated with the flushing source (30), is communicated with the pressure gas source (110) through the air pipe (120), and is communicated with the irrigation device (50) through the communication pipe (210).

6. The surgical box system according to claim 4, wherein: The surgical box (220) is provided with a plurality of cavities (20), the plurality of cavities (20) are connected in series, and the cavities (20) are communicated with the flushing source (30), communicated with the pressure gas source (110) through the air pipe (120), and communicated with the irrigation device (50) through the connecting pipe (210).

7. The surgical box system according to claim 5 or 6, characterized in that: The cavity (20) and the perfusion device (50) are respectively located on both sides of the surgical box (220); one end of the connecting tube (210) is connected to the cavity (20), and the other end passes through the surgical box (220) and is connected to the perfusion device (50).

8. The surgical box system according to claim 7, wherein: The control member (40) and the cavity (20) are located on the same side of the surgical box (220).

9. The surgical cassette system according to claim 1, wherein: The surgical box system further comprises a control component (410), wherein the control component (410) is connected to the control member (40).

10. The surgical cassette system according to claim 1, wherein: The surgical box system further comprises a clamping device (140), wherein the clamping device (140) is connected to the surgical box (220).

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