Water absorption device for contact lenses and contact lens water content measurement system

Abstract

The present application discloses a contact lens water absorption device and a contact lens water content measurement system. The contact lens water content measurement system comprises a contact lens water absorption device. The contact lens water absorption device comprises a carrier, two water absorption sheet-shaped objects, a driving module, a pressing module and a processing module. The carrier is used to carry the contact lens. One of the water absorption sheet-shaped objects is arranged on the carrier, and the other water absorption sheet-shaped object is used to cover the contact lens arranged on the carrier. The processing module is electrically connected to the driving module, and the processing module can control the driving module to move the pressing module towards or away from the carrier. The pressing module is used to press at least one contact lens arranged between the two water absorption sheet-shaped objects, so that the liquid outside the contact lens is absorbed by the water absorption sheet-shaped objects.

Description

TECHNICAL FIELD

[0001] The present application relates to a water absorption device and a water content measurement system, in particular, a water absorption device for contact lenses and a contact lens water content measurement system. BACKGROUND

[0002] The existing contact lenses have different water contents according to different types and brands. For the manufacturers of contact lenses, relevant personnel will test a plurality of contact lenses before shipment to measure whether the relevant data meets the relevant specifications. One of the test items is the water content. Since the tested contact lenses are placed in the relevant solution, the relevant personnel must manually remove the liquid outside the contact lenses before measuring the water content of the contact lenses, thereby avoiding the influence of the liquid outside the contact lenses on the measurement of the water content of the contact lenses.

[0003] Since the liquid outside the contact lenses is manually wiped, the entire detection process is not only time-consuming and labor-intensive, but also the wiping method of different personnel or the use of different wiping methods and different wiping cloths may directly or indirectly affect the accuracy of the subsequent measurement of the water content of the contact lenses. SUMMARY

[0004] The present application discloses a water absorption device for contact lenses and a contact lens water content measurement system, which is mainly used to improve the problem that the existing manual removal of liquid outside the contact lenses is easily affected by human factors and affects the accuracy of the subsequent measurement of the water content of the contact lenses.

[0005] One embodiment of the present application discloses a water absorption device for contact lenses, which comprises a carrier, at least two water absorption sheets, a driving module, a pressing module and a processing module. The carrier is used to carry at least one contact lens; one of the water absorption sheets is arranged on the carrier, and the other water absorption sheet is used to cover the contact lens arranged on the carrier; the pressing module is connected to the driving module; the processing module is electrically connected to the driving module, and the processing module can control the driving module to actuate the pressing module to move towards or away from the carrier, and press at least one contact lens arranged between the two water absorption sheets.

[0006] Preferably, the water absorption device for contact lenses further comprises a fixed frame, which is used to surround the carrier to press the two water absorption sheets, so that the contact lenses between the two water absorption sheets are squeezed by the two water absorption sheets.

[0007] Preferably, the driving module comprises a push rod and a driver, the driver is capable of controlling the push rod to move along an axis towards or away from the platform; the pressing module comprises a pressing block, the pressing block is connected to the push rod; the processing module is capable of controlling the driver to actuate, so that the push rod drives the pressing block to move along the axis; after the pressing block is driven by the push rod, the pressing block is capable of moving along the axis on the water-absorbing sheet, and thereby compressing the contact lenses between the two water-absorbing sheets.

[0008] Preferably, the driving module further comprises an auxiliary assembly, the auxiliary assembly comprises a sliding rail, a sliding block and at least two linkage members, the sliding block is capable of moving along the axis on the sliding rail, one end of one of the linkage members is connected to the push rod, and the other end of the linkage member is connected to the sliding block, the other linkage member is connected to the sliding block and the pressing block; wherein the direction in which the push rod is driven to move along the axis is opposite to the direction in which the sliding block moves along the axis on the sliding rail.

[0009] Preferably, the two linkage members are defined as a first linkage member and a second linkage member, the push rod is connected to the sliding block through the first linkage member, the second linkage member is connected to the first linkage member or the sliding block, and the second linkage member is connected to the pressing block, the pressing block comprises a first clamping structure, the end of the second linkage member comprises a second clamping structure, the first clamping structure is used to clamp with the second clamping structure, and the clamped first clamping structure and second clamping structure are only used to limit the movement range of the pressing block relative to the second linkage member along the axis, and the clamped first clamping structure and second clamping structure are not used to limit the movement range of the pressing block relative to the second linkage member in a longitudinal direction.

[0010] Preferably, the pressing block comprises at least one guide structure, during the process that the pressing block is driven by the driving module to move on the water-absorbing sheet, the guide structure is used to compress the contact lenses arranged between the two water-absorbing sheets.

[0011] Preferably, the pressing module further comprises at least one counterweight unit, the pressing block comprises a counterweight accommodating groove, the counterweight accommodating groove is capable of accommodating at least one counterweight unit.

[0012] Preferably, the water-absorbing device of the contact lenses further comprises a sensor, the sensor is used to sense the number of the counterweight units arranged in the pressing block, or the sensor is used to sense the weight of the pressing block and the counterweight units, the processing module is electrically connected to the sensor, the processing module is capable of judging whether the weight of the counterweight units arranged in the counterweight accommodating groove meets a preset weight according to a contact lens processing information and a sensing information returned by the sensor; if the processing module judges that the number of the counterweight units arranged in the counterweight accommodating groove does not meet the preset weight, the processing module sends an alarm information.

[0013] Preferably, the processing module is capable of controlling the driving module to move the pressing block on the water-absorbing sheet back and forth a preset number of times according to a contact lens processing information. The water-absorbing device for contact lens further comprises an input module electrically connected to the processing module. The input module is used for being operated by a user to generate the contact lens processing information. The input module is capable of transmitting the contact lens processing information to the processing module. The contact lens processing information at least comprises the preset number of times.

[0014] Preferably, the water-absorbing device for contact lens further comprises at least one distance detecting module electrically connected to the processing module. The processing module is capable of cooperating with the distance detecting module to detect the moving distance of the pressing block. The distance detecting module is capable of detecting the position of the pressing block and generating a distance detecting information accordingly. The processing module is capable of controlling the driving module to make the pressing block stay at at least one predetermined position on the water-absorbing sheet for a predetermined time during the moving process of the pressing block on the water-absorbing sheet according to a contact lens processing information and the distance detecting information.

[0015] Preferably, the processing module is connected to a verification device. The verification device is capable of reading a contact lens identification unit to obtain a contact lens identification data. The processing module is capable of searching a corresponding contact lens processing information in a memory of the processing module according to the contact lens identification data. The processing module is capable of controlling the driving module to operate according to the searched contact lens processing information. The verification device is capable of reading a user identification unit to obtain a user data. The processing module is capable of integrating the contact lens identification data, the user data and the contact lens processing information into a record information and transmitting the record information to a remote server.

[0016] Preferably, the water-absorbing device for contact lens further comprises a buffer structure. The buffer structure comprises a plurality of perforations. Each of the perforations is arranged through the buffer structure. Each of the perforations is used for accommodating one contact lens. The buffer structure is arranged on the platform. The buffer structure is located between the two water-absorbing sheets. The pressing module presses the contact lens arranged between the two water-absorbing sheets. The buffer structure is pressed by the pressing module at the same time.

[0017] Preferably, the pressing module comprises a roller. The processing module is capable of driving the driving module to operate to make the roller roll on the water-absorbing sheet. The processing module is capable of controlling the driving module to make the roller exert a preset force on the contact lens arranged between the two water-absorbing sheets according to a contact lens processing information. The processing module is capable of controlling the driving module to make the roller roll on the water-absorbing sheet back and forth a predetermined number of times according to the contact lens processing information.

[0018] Preferably, the driving module comprises a longitudinal slide rail and a slide block, the slide block is capable of moving along a longitudinal direction towards or away from the platform, and the slide block is connected to the pressing module; the processing module is capable of controlling the driving module according to the contact lens processing information, so that the pressing module applies a preset pressure to the contact lens arranged between the two water-absorbing sheets, and the processing module is capable of controlling the driving module according to the contact lens processing information, so that the pressing module presses the water-absorbing sheet for a predetermined time and a predetermined number of times.

[0019] In one embodiment of the present application, a contact lens water content measurement system comprises a contact lens water-absorbing device, a drying device, a weighing device, and a calculation device. The contact lens water-absorbing device is used to absorb liquid outside each contact lens to be measured for water content. The drying device is used to dry each contact lens that has passed through the contact lens water-absorbing device. The calculation device is capable of calculating the water content of each contact lens to be measured for water content according to a wet weight and a dry weight. The wet weight is the weight of each contact lens that has passed through the contact lens water-absorbing device measured by the weighing device. The dry weight is the weight of each contact lens that has passed through the drying device measured by the weighing device.

[0020] Preferably, the calculation device is capable of executing a judgment program. When the calculation device executes the judgment program, the calculation device is capable of judging whether the water content of at least one contact lens is within a corresponding preset water content range. If the calculation device determines that the water content of any contact lens is not within the preset water content range, the calculation device will determine that a production batch number corresponding to the contact lens does not meet the specifications, and the calculation device will generate a corresponding warning information.

[0021] Preferably, the contact lens water content measurement system further comprises a placing device and a moving device. The placing device is used to arrange at least one contact lens to be measured for water content on the platform, and the placing device is capable of covering the contact lens arranged on the platform with the water-absorbing sheet. The moving device is used to move the contact lens arranged on the platform to the drying device.

[0022] In summary, the contact lens water-absorbing device of the present application can effectively remove liquid outside the contact lens through the design of the platform, the driving module, the pressing module, the water-absorbing sheet, and the processing module. During the entire process of removing liquid outside the contact lens, relevant personnel basically do not need to touch the contact lens, so that each time the process of removing liquid outside the contact lens has a high consistency, thereby effectively improving the accuracy of subsequent measurement of the water content of the contact lens.

[0023] For a more complete understanding of the features and technical content of the present application, please refer to the following detailed description of the present application and the accompanying drawings. However, these descriptions and drawings are only used to illustrate the present application, and do not limit the scope of protection of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A schematic view of a first embodiment of a water absorption device for a contact lens of the present application.

[0025] Figure 2 A block schematic view of a first embodiment of a water absorption device for a contact lens of the present application.

[0026] Figure 3 A partial exploded schematic view of a first embodiment of a water absorption device for a contact lens of the present application.

[0027] Figure 4 A schematic view of a pressing block of a first embodiment of a water absorption device for a contact lens of the present application.

[0028] Figure 5 A partial exploded schematic view of a second embodiment of a water absorption device for a contact lens of the present application.

[0029] Figure 6 A block schematic view of a second embodiment of a water absorption device for a contact lens of the present application.

[0030] Figure 7 A schematic view of a third embodiment of a water absorption device for a contact lens of the present application.

[0031] Figure 8 A schematic view of a fourth embodiment of a water absorption device for a contact lens of the present application.

[0032] Figure 9 A block schematic view of a water content measurement system for a contact lens of the present application. DETAILED DESCRIPTION

[0033] In the following description, if it is indicated to refer to a specific drawing or as shown in a specific drawing, it is only used to emphasize that the relevant content described in the subsequent description mostly appears in the specific drawing, but does not limit the subsequent description to only refer to the specific drawing.

[0034] Please refer to Figures 1 to 3 , Figure 1 A schematic view of a first embodiment of a water absorption device for a contact lens of the present application, Figure 2 A block schematic view of a first embodiment of a water absorption device for a contact lens of the present application, Figure 3Figure 1 is a schematic diagram of a partial view of a first embodiment of a contact lens water absorption device of the present application. The contact lens water absorption device 100 of the present application comprises a carrier 1, two water absorption sheets 2, a driving module 3, a pressing module 4 and a processing module 5.

[0035] The carrier 1 is used to carry at least one contact lens A. One of the water absorption sheets 2 is arranged on the carrier 1, and the other water absorption sheet 2 is used to cover the contact lens A arranged on the carrier 1. The carrier 1 is mainly used to carry the contact lens A, and thus the shape of the carrier 1 can be designed according to requirements. In actual applications, relevant personnel or a mechanical arm can first place the contact lens A to be tested on the water absorption sheet 2 laid on the carrier 1, and then cover the other water absorption sheet 2 on the contact lens A arranged on the carrier 1. After the relevant personnel or the mechanical arm covers the other water absorption sheet 2 on the contact lens A, the relevant personnel or the mechanical arm can fix the last water absorption sheet 2 covered on the carrier 1, so that the contact lens A located between the two water absorption sheets 2 is pressed by the two water absorption sheets 2.

[0036] In actual applications, the water absorption sheets 2 can be detachably fixed on the carrier 1 according to requirements. In actual applications, the number of the water absorption sheets 2 arranged on the carrier 1 and the number of the water absorption sheets 2 covering the contact lens A can be changed according to requirements, and the material and size of the water absorption sheets 2 can also be changed according to requirements. For example, the material of each water absorption sheet 2 can be a dust-free cloth, a fiber cloth, a cotton cloth, a nylon cloth, a polyester fiber cloth, a dust-free paper or a material that can be used for water absorption. In one of the actual applications, two water absorption sheets 2 can be arranged on the carrier 1, and two water absorption sheets 2 can be covered on the contact lens A.

[0037] In actual applications, the contact lens water absorption device 100 further comprises a fixed frame 6, which is used to surround the carrier 1 to press the two water absorption sheets 2, so that the contact lens A located between the two water absorption sheets 2 is pressed by the two water absorption sheets 2. In actual applications, when the fixed frame 6 surrounds the carrier 1, the contact lens A located between the two water absorption sheets 2 will be pressed and become flat from an inverted bowl shape.

[0038] The pressing module 4 is connected to the driving module 3. The processing module 5 is electrically connected to the driving module 3, and the processing module 5 can control the driving module 3 to move the pressing module 4 towards or away from the carrier 1, and thus press at least one contact lens A arranged between the two water absorption sheets 2.

[0039] In actual applications, the driving module 3 can be, for example, a module comprising a push rod 31, a driver 32 and an auxiliary assembly 33. The driver 32 can control the push rod 31 to move along an axis (i.e. the Y-axis direction as indicated in Figure 3 the drawing) towards or away from the platform 1. The pressing module 4 comprises a pressing block 41, which can be directly connected to the push rod 31 or connected to the push rod 31 via the auxiliary assembly 33. The auxiliary assembly 33 comprises a slide rail 331, a slide block 332 and at least two link members. The slide block 332 can move along another axis on the slide rail 331. The two link members are defined as a first link member 333A and a second link member 333B. The two ends of the first link member 333A are connected to the push rod 31 and the slide block 332 respectively, and the push rod 31 is connected to the slide block 332 through the first link member 333A. The second link member 333B is connected to the first link member 333A (or the slide block 332), and the second link member 333B is connected to the pressing block 41.

[0040] The processing module 5 can control the driver 32 to actuate the push rod 31, which will actuate the first link member 333A, and the first link member 333A will drive the slide block 332 to move along the slide rail 331, and the second link member 333B will move with the slide block 332, and the pressing block 41 connected to the second link member 333B will be driven to move on the water-absorbing sheet-like object 2. That is, after the driver 32 is actuated, the pressing block 41 will be driven to move on the water-absorbing sheet-like object 2 through the push rod 31, the first link member 333A, the second link member 333B, the slide block 332 and the slide rail 331.

[0041] When the pressing block 41 is driven to move on the water-absorbing sheet-like object 2, the weight of the pressing block 41 itself will act on the contact lens A located between the two water-absorbing sheet-like objects 2, thereby the liquid outside the contact lens A located between the two water-absorbing sheet-like objects 2 can be absorbed by the two water-absorbing sheet-like objects 2, so as to achieve the effect of removing the liquid outside the contact lens A.

[0042] It is worth mentioning that in the drawings of the present embodiment, the direction in which the push rod 31 is driven to move along the axis is opposite to the direction in which the slide block 332 moves on the slide rail 331, and the two directions of movement are parallel to each other (i.e. the push rod 31 moves along the +Y-axis direction in Figure 3 the drawing, and the second link member 333B and the pressing block 41 move along the -Y-axis direction in the drawing). Figure 3In addition, by the design of the slider 332 and the slide rail 331 of the auxiliary assembly 33, the pressing block 41 can be effectively moved along a fixed axis, thereby ensuring that the pressing block 41 presses the contact lenses A arranged between the two water-absorbing sheet-like objects 2 along a predetermined path.

[0043] In practice, the relevant personnel can determine the weight of the pressing block 41 and the number of times the pressing block 41 moves back and forth on the water-absorbing sheet-like object 2 according to the type of the contact lenses A (for example, different water content, different brands, different styles, etc.). For example, the relevant personnel can choose a relatively heavy pressing block 41 to move back and forth on the water-absorbing sheet-like object 2 only once, or the relevant personnel can choose a relatively light pressing block 41 to move back and forth on the water-absorbing sheet-like object 2 more than three times.

[0044] In a preferred embodiment, the relevant personnel can first use the contact lens water-absorbing device 100 to test different water content contact lenses to test the weight of the pressing block 41 suitable for various contact lenses and the number of times the pressing block 41 moves back and forth on the water-absorbing sheet-like object 2, and then the relevant personnel can transmit the relevant results to the processing module 5 through a relevant device (for example, a keyboard, a mouse, various electronic devices, or any input device, etc.) in a wired or wireless manner to store as a contact lens processing information 71, and then the processing module 5 can control the driving module 3 according to the contact lens processing information 71 to move the pressing block 41 back and forth on the water-absorbing sheet-like object 2 a predetermined number of times.

[0045] As shown in Figure 2 In one specific embodiment, the contact lens water-absorbing device 100 can further include an input module 7 electrically connected to the processing module 5. The input module 7 is used for user operation to generate the contact lens processing information 71, and the input module 7 can transmit the contact lens processing information 71 to the processing module 5; wherein the contact lens processing information 71 at least includes the predetermined number of times. The specific form of the input module 7 can be selected according to the needs, which is not limited herein. For example, the input module 7 can include a plurality of operation buttons, and the processing module 5 and the input module 7 can be integrated into an operation device, or the input module 7 can be designed as a virtual input box in a certain operation software, etc.

[0046] As shown in Figure 3 and Figure 4As shown, in a preferred embodiment, the side of the pressing block 41 facing the absorbent sheet 2 may include two chamfered structures 411. These two chamfered structures 411 are approximately located at opposite ends of the pressing block 41. During the movement of the pressing block 41 on the absorbent sheet 2 by the driving module 3, the chamfered structures 411 press against the contact lens A positioned between the two absorbent sheets 2. The design of the two chamfered structures 411 effectively prevents the pressing block 41 from damaging the contact lens A located between the two absorbent sheets 2 during its movement. In other words, if the corners of the pressing block 41 were not designed with chamfered structures 411, in practice, it would be relatively easy for the corners of the pressing block 41 to cause damage to the contact lens A located between the two absorbent sheets 2.

[0047] It should be noted that if the contact lens A located between the two absorbent pads 2 is damaged, the water contained in the contact lens A will be easily absorbed by the absorbent pads 2, thereby causing the subsequent measurement of the water content of the contact lens A to be inaccurate.

[0048] As described above, in practice, the weight of the pressure block 41 can be designed based on the material and water content of the contact lens A on the stage 1. This ensures that when the pressure block 41 moves on the absorbent sheet 2, it does not excessively press against the contact lens A, but only causes the absorbent sheet 2 to absorb the liquid outside the contact lens A. Conversely, if the weight of the pressure block 41 is improperly designed, after the pressure block 41 moves on the stage 1, the contact lens A may be subjected to excessive external force, resulting in the water inside the contact lens A being squeezed out of the contact lens A.

[0049] like Figure 1 and Figure 3 As shown, in practical applications, the pressure module 4 of the water absorption device 100 for contact lenses may also include at least one counterweight unit 42, and the pressure block 41 may also include a counterweight container 412, which is used to accommodate at least one preset weight of the counterweight unit 42.

[0050] More specifically, if an individual wishes to use the water-absorbing device 100 of a contact lens to remove a contact lens A with a relatively high water content (e.g., 55%) or a contact lens A with a relatively low water content (e.g., 38%), the individual may place a weight unit 42 of the same preset weight in the weight container 412.

[0051] like Figure 2As shown, in practice, in order to avoid the relevant personnel misplacing the weight unit 42, the water absorption device 100 of the contact lens can further include a sensor 8, which is used to sense the weight of the weight unit 42 disposed by the pressing block 41, or the sensor 8 is used to sense the weight of the pressing block 41 and the weight unit 42, and the processing module 5 is electrically connected to the sensor 8. For example, the sensor 8 can be various light sensors (Light Sensor), which are used to sense the weight of the weight unit 42 disposed by the pressing block 41; or the sensor 8 can be a pressure sensor, which is used to sense the weight of the weight unit 42 disposed in the weight container groove 412.

[0052] The processing module 5 can determine whether the weight of the weight unit 42 disposed in the weight container groove 412 meets a preset weight according to the contact lens processing information 71 and a sensing information 81 returned by the sensor 8. If the processing module 5 determines that the weight of the weight unit 42 disposed in the weight container groove 412 does not meet the preset weight, the processing module 5 sends an alert information 51. In practice, the processing module 5 can, for example, transmit the alert information 51 to the relevant alert device to remind the user that the current setting mode of the weight unit 42 is wrong through sound, light beam, etc.; or the processing module 5 can control a display device (such as various screens) to display the alert information 51, and the user can see the text content such as: the current weight of the weight unit 42 is incorrect, please reposition, etc. in the display device.

[0053] As shown in Figure 3 and Figure 4 It is worth mentioning that the pressing block 41 connected to the second link member 333B includes a first clamping structure 413. The first clamping structure 413 is, for example, a through hole penetrating the pressing block 41, and the shape of the first clamping structure 413 can be similar to a T shape.

[0054] The end of the second link member 333B includes a second clamping structure 333B1, and the first clamping structure 413 is used to be clamped with the second clamping structure 333B1. The clamped first clamping structure 413 and the second clamping structure 333B1 are only used to limit the movement range of the pressing block 41 relative to the second link member 333B in the axis direction, and the clamped first clamping structure 413 and the second clamping structure 333B1 are not used to limit the movement range of the pressing block 41 relative to the second link member 333B in a longitudinal direction. The longitudinal direction is perpendicular to the axis.

[0055] Specifically, the first clamping structure 413 and the second clamping structure 333B1 are used to limit the movement of the pressing block 41 and the second link member 333B in the Figure 3The first and second engaging structures 413 and 333B1 do not limit the movement of the pressing block 41 and the second link member 333B in the directions of the X-axis and Y-axis coordinates. Figure 3 The second link member 333B is effectively prevented from applying a force to the pressing block 41 in the direction of the Z-axis coordinate during movement. Thus, the pressing block 41 and the counterweight unit 42 disposed thereon can more accurately apply a force to the contact lens A between the two water-absorbing sheets 2.

[0056] In practice, the time for which the pressing block 41 presses the contact lens A between the two water-absorbing sheets 2 also affects whether liquid outside the contact lens A is removed. Specifically, if the pressing block 41 presses the water-absorbing sheets 2 for too long, the contact lens A can be damaged. Conversely, if the pressing block 41 presses the water-absorbing sheets 2 for too short, liquid outside the contact lens A can not be sufficiently absorbed by the water-absorbing sheets 2.

[0057] Therefore, in one embodiment, the contact lens water-absorbing device 100 further includes at least one distance detection module 9 (as shown in Figures 1 to 3 The distance detection module 9 is electrically connected to the processing module 5. The processing module 5 can cooperate with the distance detection module 9 to detect the distance moved by the pressing block 41. The distance detection module 9 can detect the position of the pressing block 41 and generate a distance detection information 91. The distance detection module 9 can be various position sensors, but is not limited thereto. The processing module 5 can use the contact lens processing information 71 and the distance detection information 91 to cause the pressing block 41 to stay at at least one predetermined position on the water-absorbing sheets 2 for a predetermined time during movement of the pressing block 41 on the water-absorbing sheets 2. In this embodiment, the contact lens processing information 71 includes the predetermined time.

[0058] In other words, relevant personnel can use the contact lens water-absorbing device 100 to test various contact lenses A with different water contents, the weight of the pressing block 41 required, and the time for which the water-absorbing sheets 2 on the pressing block 41 need to stay to effectively remove liquid from the contact lens A, and establish the contact lens processing information 71.

[0059] As described above, the applicant tested commercially available contact lenses with a water content of 38% (DAILIES TOTAL DAILIES TOTAL DAILY DISPOSABLE contact lenses (60 pieces) and commercially available contact lenses with a water content of 56% (AIR OPTIX 1DAY KALIN silicone hydrogel daily disposable contact lenses (60 pieces) were divided into an experimental group and a control group. The experimental group was subjected to water absorption operation using the water absorption device of the present application for 30 pieces of contact lenses with a water content of 38% and 30 pieces of contact lenses with a water content of 56%. The control group was subjected to water absorption operation using a conventional manual method for 30 pieces of contact lenses with a water content of 38% and 30 pieces of contact lenses with a water content of 56%.

[0060] The water absorption test results of the contact lenses with a water content of 38% and the contact lenses with a water content of 56% are shown in Table 1 and Table 2 below.

[0061] Table 1: Measurement results of contact lenses with a water content of 38% (30 pieces of sample in each group)

[0062] Mean water content Standard deviation of water content Control group 0.3747 0.0064 Experimental group 0.3702 0.0037

[0063] Table 2: Measurement results of contact lenses with a water content of 56% (30 pieces of sample in each group)

[0064] Mean water content Standard deviation of water content Control group 0.5581 0.0069 Experimental group 0.5533 0.0038

[0065] The above measurement results were subjected to Levene test for variance homogeneity. Whether the significant p value is less than (<) 0.05 is used as a criterion for determining whether there is a significant difference in the variance of the measurement results between the control group and the experimental group. The Levene test results are shown in Table 3 and Table 4 below.

[0066] Table 3: Levene test results of contact lenses with a water content of 38%

[0067] F-test Significance P-value 10.412 0.002

[0068] Table 4: Levene test results of contact lenses with a water content of 56%

[0069] F-test Significance P-value 13.272 0.001

[0070] Since the p value of the Levene test result is less than 0.05, it indicates that there is a significant difference in the variance of the measurement results between the control group and the experimental group. Therefore, the size of the coefficient of variation (CV) of the two groups was further compared, as shown in Table 5 below.

[0071] Table 5: Coefficient of variation of the control group and the experimental group

[0072]

[0073]

[0074] From Table 5, the coefficients of variation of the experimental groups of the two kinds of contact lenses with water content of 38% and 56% are less than those of the control groups, indicating that the water absorption device of the contact lens of the present application has a smaller variation degree and is more stable than the conventional manual water absorption operation mode.

[0075] Referring to Figure 5 , which shows a schematic diagram of a second embodiment of the water absorption device of the contact lens of the present application. The biggest difference between this embodiment and the previous embodiments is that the water absorption device 100 of the contact lens further comprises a buffer structure 100A, which comprises a plurality of perforations 100A1, each of which is arranged through the buffer structure 100A, and each of which is used to accommodate a contact lens A. The buffer structure 100A is arranged on the loading platform 1, and the buffer structure 100A is located between the two water absorption sheet-shaped objects 2, and when the pressing module 4 presses the contact lens A arranged between the two water absorption sheet-shaped objects 2, the buffer structure 100A is also pressed by the pressing module 4. In practice, the buffer structure 100A can be made of foam or other materials, and after being pressed by the pressing module 4, it can recover to the state of being not pressed by its own elasticity.

[0076] As described above, through the design of the buffer structure 100A, relevant personnel or mechanical arms and other equipment can better arrange the contact lens A on the fixed position on the loading platform 1, thereby improving the consistency of each operation of the water absorption device 100 of the contact lens, and effectively avoiding the problem of overlapping of adjacent two contact lenses A.

[0077] Referring to Figure 6 , which shows a block diagram of a third embodiment of the water absorption device of the contact lens of the present application. The difference between this embodiment and the previous embodiments is that the processing module 5 can be connected with a verification device 200, and the verification device 200 can read a contact lens identification unit 300 to obtain a contact lens identification data 301. The processing module 5 can comprise a processor and a memory, the processor can receive the contact lens identification data 301, and the processor can search for corresponding contact lens processing information 71 in the memory according to the contact lens identification data 301, and control the driving module 3 to act according to the searched contact lens processing information 71. For detailed description of the contact lens processing information 71, please refer to the previous embodiments, which will not be described here.

[0078] In practical application, the verification device 200 can be part of the water absorption device 100 of the contact lens, or the verification device 200 can not be part of the water absorption device 100 of the contact lens, and the verification device 200 is connected with the processing module 5 of the water absorption device 100 of the contact lens through wired or wireless communication.

[0079] The verification device 200 can also read a user identification unit 400 to obtain a user data 401, and the processing module 5 can integrate the contact lens identification data 301, the user data 401 and the contact lens processing information 71 into a record information 201, and transmit the record information 201 to a remote server 500 for storage.

[0080] Specifically, the verification device 200 can be a barcode scanner, and the contact lens identification unit 300 and the user identification unit 400 can be one-dimensional barcodes or two-dimensional barcodes. Before using the contact lens water absorption device 100, a staff member must first scan the personal barcode (i.e., the user identification unit 400) on his / her staff card using the barcode scanner, and then scan the barcode (i.e., the contact lens identification unit 300) printed on the box of the contact lens A to be measured. In this way, the processing module 5 can obtain the basic data of the user (such as the staff number) and the relevant data of the contact lens to be measured (such as the preset water content of the contact lens, the production batch number, etc.) in sequence.

[0081] It should be noted that, according to the relevant regulations of various countries, the relevant production data of contact lenses and other medical products must be retained for a specified period of time (usually 10 years). Therefore, through the above design of the verification device 200, the contact lens identification unit 300 and the user identification unit 400, manufacturers can more easily manage the relevant data.

[0082] In practice, in order to ensure that the user data 401 and the contact lens identification data 301 can be recorded every time the contact lens water absorption device 100 is used, the processing module 5 can disable the start switch of the contact lens water absorption device 100 before the user reads the user data 401 and the contact lens identification data 301 using the verification device 200, and enable the start switch of the contact lens water absorption device 100 only after the processing module 5 receives the user data 401 and the contact lens identification data 301 read by the verification device 200. Of course, in different embodiments, the processing module 5 can only require the user to read the contact lens identification data 301 using the verification device 200, without limiting the user to read the user data 401 using the verification device 200.

[0083] As described above, through the design of the verification device 200, the user identification unit 400 and the contact lens identification unit 300, the contact lens water absorption device 100 of the present embodiment can make it easier for relevant personnel to manage and control relevant data in the future, especially when problems occur with the shipped contact lenses, and relevant personnel want to trace all the processes of the water content measurement of the contact lenses. In this case, the relevant personnel can simply review the record information 201 to understand the situation.

[0084] Referring to Figure 7 The biggest difference between this embodiment and the previous embodiments is that the pressing module 4 comprises a roller 43, and the processing module can drive the driving module 3 to actuate the roller 43 to roll on the water-absorbing sheet 2. The processing module can control the driving module 3 according to a contact lens processing information, so that the roller 43 applies a preset force to the contact lens A arranged between the two water-absorbing sheets 2, and the processing module can control the driving module 3 according to the contact lens processing information, so that the roller 43 rolls back and forth on the water-absorbing sheet 2 for a predetermined number of times. For details of the processing module and the contact lens processing information, please refer to the previous embodiments, which will not be repeated here. In actual applications, the driving module 3 may, for example, comprise a linear slide rail, a related connecting rod used to connect the roller 43, but is not limited thereto. The specific form of the driving module 3 and the connection mode with the roller 43 are not limited to those shown in the figure, and can be changed according to requirements.

[0085] In actual applications, during the rolling process of the roller 43 on the water-absorbing sheet 2, the weight of the roller 43 itself can be used to press the contact lens A between the two water-absorbing sheets 2, so as to achieve the effect of removing the liquid outside the contact lens A. The roller 43 may, for example, be detachably connected with the driving module 3, and the relevant personnel can determine which weight of the roller 43 to replace according to the type of the contact lens A.

[0086] In different embodiments, the driving module 3 can also apply a force to the roller 43, so that the roller 43 presses the contact lens A between the two water-absorbing sheets 2 not only by its own weight but also by the force.

[0087] Referring to Figure 8 The biggest difference between this embodiment and the previous embodiments is that the driving module 3 comprises a longitudinal slide rail 34 and a sliding block 35, the sliding block 35 can move along a longitudinal direction towards or away from the loading platform 1 on the longitudinal slide rail 34, and the sliding block 35 is connected with the pressing module 4.

[0088] The processing module can control the driving module 3 according to a contact lens processing information, so that the pressing module 4 applies a preset force to the contact lens A arranged between the two water-absorbing sheets 2, and the processing module can control the driving module 3 according to the contact lens processing information, so that the pressing module 4 presses the water-absorbing sheet 2 for a predetermined time and a predetermined number of times. For details of the processing module and the contact lens processing information, please refer to the previous embodiments, which will not be repeated here.

[0089] In practical applications, the pressing module 4 can be a weight of itself to press the contact lenses A between the two water-absorbing sheets 2, or the pressing module 4 can be connected to a force providing module (such as a gas pressure rod, an oil pressure rod, etc.) to apply an additional force to the contact lenses A between the two water-absorbing sheets 2 through the pressing module 4.

[0090] Please refer to Figure 1 , Figure 2 and Figure 9 , Figure 9 a block diagram of a contact lens water content measuring system of the present application is shown. The contact lens water content measuring system 600 comprises a contact lens water-absorbing device 601, a drying device 602, a weighing device 603, a calculating device 604, a placing apparatus 605 and a moving apparatus 606.

[0091] The contact lens water-absorbing device 601 is used to absorb the liquid outside each contact lens A to be measured for water content. The contact lens water-absorbing device 601 referred to herein is the same as the contact lens water-absorbing device 100 (as shown in Figure 1 ) described in the foregoing description, and thus will not be described again in this embodiment.

[0092] In practical applications, the placing apparatus 605 can be used to place one or more contact lenses A to be measured for water content on the platform 1, and the placing apparatus 605 can cover the one or more contact lenses A placed on the platform 1 with the water-absorbing sheets 2. For example, the placing apparatus 605 can comprise a mechanical arm or the like. In different embodiments, the contact lens water content measuring system 600 can not comprise the placing apparatus 605, and one or more contact lenses A can be placed on the platform 1 by manually picking up the contact lenses A.

[0093] The drying device 602 is used to dry each contact lens A passed through the contact lens water-absorbing device 601, and the calculating device 604 can calculate the water content of each contact lens A to be measured for water content according to a wet weight and a dry weight. The wet weight is the weight of each contact lens A passed through the contact lens water-absorbing device 601 measured by the weighing device 603. The dry weight is the weight of each contact lens A passed through the drying device 602 measured by the weighing device 603.

[0094] In actual applications, the transfer device 606 can be used to transfer one or more contact lenses A on the loading platform 1 to the weighing device 603, and the transfer device 606 can also be used to move the contact lenses A between the weighing device 603 and the drying device 602. For example, the transfer device 606 can include a mechanical arm or the like. In different embodiments, the contact lens water content measurement system 600 can not include the transfer device 606, and one or more contact lenses A can be manually picked up from the loading platform 1 and moved to the weighing device 603, and one or more contact lenses A can be manually picked up from the weighing device 603 and moved to the drying device 602.

[0095] In a preferred embodiment, when the transfer device 606 transfers the contact lenses A on the loading platform 1 to the weighing device 603, the placing device 605 can continue to place the next batch of contact lenses on the loading platform 1, so as to improve the efficiency of the entire operation process of the contact lens water content measurement system 600.

[0096] The operation device 604 can execute a judgment program, and when the operation device 604 executes the judgment program, the operation device 604 can determine whether the water content of one or more contact lenses A is within a corresponding preset water content range. If the operation device 604 determines that the water content of any contact lens A is not within the preset water content range, the operation device 604 will determine that the production batch number corresponding to the contact lens A does not meet the specifications, and the operation device 604 will generate a corresponding warning information 6041.

[0097] In actual applications, the operation device 604 may, for example, control a related display device (such as various screens) to display the warning information 6041, and relevant personnel can view similar text such as: the water content of the contact lens of batch number 0012 may not meet the specifications, etc. on the display device. In another embodiment, the operation device 604 can also transmit the warning information 6041 to a related warning device, and the warning device can emit corresponding sound, light beam, etc. to remind the user that the currently measured water content of the contact lens does not meet the specifications.

[0098] For example, assuming that the water content range is 38% ± 2%, the water absorption device 601 simultaneously performs water absorption on 20 contact lenses, and then, after the operation device 604 executes the judgment program, if the water content of one of the contact lenses to be determined exceeds 40% or is lower than 36%, the operation device 604 will determine that the water content of the contact lenses of this production batch does not meet the specifications, and the operation device 604 will generate corresponding warning information 6041 accordingly.

[0099] In summary, the contact lens water content measuring system and the contact lens water absorption device of the present application can automatically remove the liquid outside the contact lens by the design of the carrier, the water absorption sheet, the driving module, the pressing module, the processing module, etc. and basically do not need the participation of the relevant personnel in the whole process of removing the liquid outside the contact lens. Therefore, the human factors directly or indirectly affecting the subsequent measurement of the water content of the contact lens can be greatly reduced.

[0100] The above description is only the preferred embodiments of the present application, and is not intended to limit the claims of the present application. Therefore, any equivalent technical changes made by using the content of the present application specification and drawings are included in the protection scope of the present application.

Claims

1. A water-absorbing device for contact lenses, characterized by, The water-absorbing device of the contact lens comprises: a carrier for carrying at least one contact lens; at least two water-absorbing sheets, one of which is arranged on the carrier, and the other of which is used to cover the contact lens arranged on the carrier; a driving module; a pressing module connected with the driving module; a processing module electrically connected with the driving module, which can control the driving module to move the pressing module towards or away from the carrier, and press the contact lens arranged between the two water-absorbing sheets.

2. The water-absorbing device for contact lenses according to claim 1, characterized in that The water-absorbing device of the contact lens further comprises a fixed frame for covering the carrier to press the two water-absorbing sheets, so that the contact lens between the two water-absorbing sheets is squeezed by the two water-absorbing sheets.

3. The water-absorbing device for contact lenses according to claim 1, wherein The driving module comprises a push rod and a driver, which can control the push rod to move along an axis towards or away from the carrier; the pressing module comprises a pressing block connected with the push rod; the processing module can control the driver to drive the push rod to move the pressing block along the axis; after the pressing block is driven by the push rod, it can move along the axis on the water-absorbing sheet, and squeeze the contact lens between the two water-absorbing sheets.

4. The water-absorbing device for contact lenses according to claim 3, characterized in that The driving module further comprises an auxiliary assembly, which comprises a slide rail, a slide block and at least two link members, the slide block can move along the axis on the slide rail, one end of one of the link members is connected with the push rod, and the other end is connected with the slide block, the other link member is connected with the slide block and the pressing block; wherein the direction in which the push rod is driven to move along the axis is opposite to the direction in which the slide block moves along the axis on the slide rail.

5. The water-absorbing device for contact lenses according to claim 4, characterized in that The two link members are defined as a first link member and a second link member, the push rod is connected with the slide block through the first link member, the second link member is connected with the first link member or the slide block, and the second link member is connected with the pressing block, the pressing block comprises a first clamping structure, the end of the second link member comprises a second clamping structure, the first clamping structure is used to clamp with the second clamping structure, and the clamped first clamping structure and second clamping structure are only used to limit the movement range of the pressing block relative to the second link member along the axis, and the clamped first clamping structure and second clamping structure are not used to limit the movement range of the pressing block relative to the second link member in a longitudinal direction.

6. The water-absorbing device for contact lenses according to claim 3, wherein The pressing block comprises at least one guide angle structure, which squeezes the contact lens arranged between the two water-absorbing sheets during the movement of the pressing block on the water-absorbing sheet driven by the driving module.

7. The water-absorbing device for contact lenses according to claim 3, wherein The pressing module further comprises at least one counterweight unit, and the pressing block comprises a counterweight accommodating groove capable of accommodating at least one counterweight unit.

8. The water-absorbing device for contact lenses according to claim 7, characterized in that The contact lens water absorption device further comprises a sensor for sensing the number of counterweight units arranged in the counterweight accommodating groove or for sensing the weight of the pressing block and the counterweight units. The processing module is electrically connected to the sensor. The processing module can determine whether the weight of the counterweight units arranged in the counterweight accommodating groove meets a preset weight according to a contact lens processing information and a sensing information returned by the sensor. If the processing module determines that the number of counterweight units arranged in the counterweight accommodating groove does not meet the preset weight, the processing module sends an alert information.

9. The water-absorbing device for contact lenses according to claim 3, wherein The processing module can control the driving module to move the pressing block on the water absorption sheet back and forth a preset number of times according to a contact lens processing information. The contact lens water absorption device further comprises an input module electrically connected to the processing module. The input module is used for user operation to generate the contact lens processing information. The input module can transmit the contact lens processing information to the processing module. The contact lens processing information at least comprises the preset number of times.

10. The water-absorbing device for contact lenses according to claim 3, wherein The contact lens water absorption device further comprises at least one distance detection module electrically connected to the processing module. The processing module can cooperate with the distance detection module to detect the moving distance of the pressing block. The distance detection module can detect the position of the pressing block and generate a distance detection information. The processing module can make the pressing block stay at at least one predetermined position on the water absorption sheet for a predetermined time during the movement of the pressing block on the water absorption sheet according to a contact lens processing information and the distance detection information.

11. The water-absorbing device for contact lenses according to claim 1, characterized in that The processing module can be connected to a verification device. The verification device can read a contact lens identification unit to obtain a contact lens identification data. The processing module can find out a corresponding contact lens processing information in a memory of the processing module according to the contact lens identification data, and control the driving module to act according to the found contact lens processing information. The verification device can read a user identification unit to obtain a user data. The processing module can integrate the contact lens identification data, the user data and the contact lens processing information into a record information and transmit the record information to a remote server.

12. The water-absorbing device for contact lenses according to claim 1, wherein The contact lens water absorption device further comprises a buffer structure comprising a plurality of perforations. Each perforation penetrates the buffer structure. Each perforation is used to accommodate one contact lens. The buffer structure is arranged on the carrier. The buffer structure is located between two water absorption sheets. When the pressing module presses the contact lenses arranged between the two water absorption sheets, the buffer structure is pressed by the pressing module at the same time.

13. The water-absorbing device for contact lenses according to claim 1, wherein The pressing module comprises a roller, and the driving module is driven by the processing module to roll the roller on the water-absorbing sheet; the processing module controls the driving module according to the contact lens processing information to make the roller apply a preset force on the contact lens arranged between two water-absorbing sheets, and the processing module controls the driving module according to the contact lens processing information to make the roller roll on the water-absorbing sheet for a predetermined number of times.

14. The water-absorbing device for contact lenses according to claim 1, wherein The driving module comprises a longitudinal sliding rail and a sliding block, the sliding block is capable of moving along a longitudinal direction towards or away from the platform, and the sliding block is connected with the pressing module; the processing module controls the driving module according to the contact lens processing information to make the pressing module press a preset force on the contact lens arranged between two water-absorbing sheets, and the processing module controls the driving module according to the contact lens processing information to make the pressing module press the water-absorbing sheet for a predetermined time and a predetermined number of times.

15. A contact lens water content measurement system characterized by, The contact lens water content measuring system comprises the water-absorbing device of the contact lens, the drying device, the weighing device and the operation device according to any one of claims 1 to 14, the water-absorbing device is used to absorb liquid outside each contact lens to be measured, the drying device is used to dry each contact lens through the water-absorbing device, and the operation device calculates the water content of each contact lens to be measured according to a wet weight and a dry weight, the wet weight is the weight of each contact lens through the water-absorbing device measured by the weighing device, and the dry weight is the weight of each contact lens through the drying device measured by the weighing device.

16. The contact lens water content measurement system of claim 15, wherein The operation device executes a judgment program, the operation device judges whether the water content of at least one contact lens is in a corresponding preset water content range, if the operation device determines that the water content of any contact lens is not in the preset water content range, the operation device determines that a production batch number corresponding to the contact lens does not meet the specifications, and the operation device generates a corresponding warning information.

17. The contact lens water content measurement system of claim 15, wherein the contact lens water content measurement system further comprises a lens thickness measurement system. The contact lens water content measuring system further comprises a placing device and a moving device, the placing device is used to arrange at least one contact lens to be measured on the platform, and the placing device is capable of covering the water-absorbing sheet on the contact lens arranged on the platform, and the moving device is used to move the contact lens arranged on the platform to the drying device.

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