An intraocular pressure measuring device

Abstract

The present application discloses an intraocular pressure measuring device, comprising: a probe, comprising a main body and a probe head arranged at one end of the main body, wherein the material of the main body comprises a magnetic material; a magnetic attraction mechanism, wherein the magnetic attraction mechanism is used to adsorb the probe; and a first coil, wherein the first coil is arranged around the main body, wherein the first coil comprises a driving state and a detection state, wherein in the driving state, the first coil is used to push the probe to move, and in the detection state, the first coil is used to detect the motion state of the probe. The intraocular pressure measuring device disclosed in the present application realizes the function of detecting intraocular pressure by causing the probe to contact the surface of the user's eye and cause a change in motion state; the probe is adsorbed by the magnetic attraction mechanism so that the probe is maintained inside the intraocular pressure measuring device without falling; and a single coil is used to both drive the probe to move and detect the motion state of the probe, thereby reducing the number of coils, simplifying the structure of the intraocular pressure measuring device, and thereby reducing the manufacturing cost and volume of the intraocular pressure measuring device.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and in particular, relates to an intraocular pressure measuring device. Background Art

[0002] Tonometer is an instrument for measuring intraocular pressure, which can assist in the diagnosis of cataracts, glaucoma, etc. Tonometers are usually composed of a corneal shape change generator, a corneal deformation measurement system or a contact corneal device and a pressure sensor, and are used to measure intraocular pressure. Common tonometer products include non-contact tonometers, applanation tonometers, contact piezoelectric tonometers, rebound tonometers, depression tonometers, etc.

[0003] In the prior art, the rebound tonometer is easy to use, flexible and widely used. However, the existing rebound tonometer has a complex structure and contains multiple coils, which increases the manufacturing cost and the size of the device. Summary of the invention

[0004] The embodiment of the present application provides an intraocular pressure measuring device, which can reduce manufacturing costs.

[0005] An embodiment of the present application provides an intraocular pressure measuring device, including: a probe, including a main body and a probe head arranged at one end of the main body, the material of the main body including a magnetic material; a magnetic attraction mechanism, the magnetic attraction mechanism is used to adsorb the probe; a first coil, the first coil is arranged around the main body, the first coil includes a driving state and a detection state, in the driving state, the first coil is used to push the probe to move, and in the detection state, the first coil is used to detect the movement state of the probe.

[0006] According to the implementation scheme of the first aspect of the present application, it also includes a control module, which is connected to the first coil and is used to send a drive signal and a detection signal to the first coil, so that the first coil enters a drive state when it receives the drive signal, and enters a detection state when it receives the detection signal.

[0007] According to the implementation scheme of the first aspect of the present application, the magnetic attraction mechanism includes: a permanent magnet, which is used to attract the end of the main body away from the probe head; a second coil, which is wrapped around the outside of the permanent magnet and generates magnetism opposite to that of the permanent magnet when energized, so that the magnetic attraction mechanism does not attract the probe.

[0008] According to the implementation of the first aspect of the present application, the control module is connected to the second coil and is used to energize the second coil in a driving state or a detection state, thereby preventing the magnetic attraction mechanism from adsorbing the probe.

[0009] According to an embodiment of the first aspect of the present application, it further includes a catheter, in which a slide extending along a first direction is provided, and the main body is movably disposed on the slide along the first direction.

[0010] According to an implementation of the first aspect of the present application, the slide includes a first end and a second end opposite to each other in a first direction, an opening is provided on the first end, and the probe head extends out of the opening.

[0011] According to the implementation of the first aspect of the present application, at least part of the main body extends from the second end, and the magnetic attraction mechanism is located on the side of the second end away from the first end and is used to attract the end of the main body away from the probe head.

[0012] According to an implementation of the first aspect of the present application, the catheter includes: a first part, a slide is arranged in the first part; a second part, including a chamber penetrating along a first direction, at least part of the first part is located in the chamber and forms a accommodating chamber between the first part and the inner wall surface of the chamber, and the first coil is located in the accommodating chamber.

[0013] According to the implementation scheme of the first aspect of the present application, the first part includes a blocking portion and a connecting portion distributed successively along the first direction, the slideway passes through the blocking portion and the connecting portion, the blocking portion abuts against the end surface of the second part, and the connecting portion is located inside the second part.

[0014] According to an implementation scheme of the first aspect of the present application, the connecting portion includes a first segment and a second segment, the second segment is located on the side of the first segment away from the blocking portion, and the size of the second segment is smaller than the size of the first segment; the chamber includes a first hole segment and a second hole segment that are interconnected, the aperture of the second hole segment is smaller than the aperture of the first hole segment, so as to form an abutment surface between the first hole segment and the second hole segment, the first segment is located in the first hole segment and abuts against the abutment surface, and the second segment is located in the second hole segment.

[0015] According to an embodiment of the first aspect of the present application, the probe head is made of an elastic material.

[0016] The intraocular pressure measuring device of the embodiment of the present application realizes the function of detecting intraocular pressure by having the probe contact the surface of the user's eye and causing a change in the movement state; the probe is adsorbed by a magnetic suction mechanism so that the probe is maintained inside the intraocular pressure measuring device without falling, and the measurement is more flexible, and can realize horizontal, inclined or vertical measurement; a single coil is used to both drive the probe movement and detect the probe movement state, thereby reducing the number of coils, simplifying the structure of the intraocular pressure measuring device, and thereby reducing the manufacturing cost and volume of the intraocular pressure measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A cross-sectional view of an intraocular pressure measuring device according to some embodiments of the present application;

[0019] Figure 2 An example is shown Figure 1 Schematic diagram of the connection of the intraocular pressure measurement device;

[0020] Figure 3 An example is shown Figure 1 Coordinate diagram of the equation of the electromotive force in the first coil and the probe movement time in the intraocular pressure measurement device.

[0021] Reference numerals:

[0022] 10. probe; 11. main body; 12. probe head;

[0023] 20. Magnetic attraction mechanism; 21. Second coil;

[0024] 30. First coil;

[0025] 40. conduit; 41. slideway; 411. first end; 412. second end; 42. first portion; 421. blocking portion; 422. connecting portion; 43. second portion; 431. chamber;

[0026] 50. Control module; 51. First coil driving circuit; 52. First coil electromotive force amplifying circuit; 53. Second coil driving circuit; 54. IOP algorithm module; 55. Timer; 56. Bluetooth module;

[0027] 60. Display screen; x, first direction. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0030] The applicant has found that in the prior art, the rebound tonometer is easy to use, flexible and widely used. However, the existing rebound tonometer has a complex structure and contains multiple coils, which increases the manufacturing cost and the size of the device.

[0031] In view of the above problems, the applicant proposes an intraocular pressure measuring device, comprising: a probe, including a main body and a probe head arranged at one end of the main body, the material of the main body including a magnetic material; a magnetic attraction mechanism, the magnetic attraction mechanism is used to adsorb the probe; a first coil, the first coil is arranged around the main body, the first coil includes a driving state and a detection state, in the driving state, the first coil is used to push the probe to move, and in the detection state, the first coil is used to detect the movement state of the probe.

[0032] The intraocular pressure measuring device provided by the present application realizes the function of detecting intraocular pressure by having the probe contact the surface of the user's eye and causing a change in the movement state; the probe is adsorbed by a magnetic suction mechanism so that the probe is maintained inside the intraocular pressure measuring device without falling, and the measurement is more flexible, and can realize horizontal, inclined or vertical measurement; a single coil is used to both drive the probe movement and detect the probe movement state, thereby reducing the number of coils, simplifying the structure of the intraocular pressure measuring device, and thereby reducing the manufacturing cost and volume of the intraocular pressure measuring device.

[0033] Please refer to Figures 1 to 3 In order to solve the problems of the prior art, the embodiment of the present application provides an intraocular pressure measuring device. The intraocular pressure measuring device provided by the embodiment of the present application is introduced below. It is explained here that the x direction in the accompanying drawings is a first direction.

[0034] Figure 1 A cross-sectional view of an intraocular pressure measuring device according to some embodiments of the present application; Figure 2 An example is shown Figure 1 Schematic diagram of the connection of the intraocular pressure measurement device; Figure 3 An example is shown Figure 1Coordinate diagram of the equation of the electromotive force in the first coil and the probe movement time in the intraocular pressure measurement device.

[0035] Please refer to Figure 1 The present application provides an intraocular pressure measuring device, including a probe 10, a magnetic attraction mechanism 20 and a first coil 30, wherein the magnetic attraction mechanism 20 is used to adsorb the probe 10. The probe 10 includes a main body 11 and a probe head 12 disposed at one end of the main body 11, wherein the material of the main body 11 includes a magnetic material. The first coil 30 is disposed around the main body 11, and the first coil 30 includes a driving state and a detection state. In the driving state, the first coil 30 is used to push the probe 10 to move. In the detection state, the first coil 30 is used to detect the motion state of the probe 10.

[0036] The main body 11 and the probe head 12 can be integrally provided or assembled together through a connection structure. The main body 11 can optionally include a magnetic material, and the probe head 12 can optionally include an elastic material, such as plastic, to avoid damage to the eyes when contacting the eyes. The probe head 12 can be disposable, and the main body 11 can be reusable. The main body 11 can be completely composed of a magnetic material, or partially composed of a magnetic material, and the magnetic material includes a ferromagnetic, paramagnetic or magnetizable material.

[0037] The intraocular pressure measuring device provided in this embodiment is driven by the main body 11 of the probe 10 by the first coil 30, thereby driving the probe head 12 to contact the user's eye surface and change the motion state, and realizing the function of detecting intraocular pressure according to the change of the motion state of the probe 10. The probe 10 is adsorbed by the magnetic suction mechanism 20 so that the probe 10 is maintained inside the intraocular pressure measuring device without falling, and the measurement is more flexible, and the measurement in the horizontal, inclined or vertical direction can be realized; because the main body 11 includes magnetic materials, the first coil 30 surrounds the outer periphery of the main body, so when the first coil 30 is energized, a thrust is generated on the probe 10 inside the first coil 30, pushing the main body 11 to drive the probe head 12 to move. At the same time, due to the movement of the probe 10, an electromotive force is generated in the first coil 30, and the first coil 30 detects the motion state of the probe 10 according to the change of the electromotive force. The first coil 30 not only drives the main body 10 of the probe 10 to drive the probe head 12 to move, but also detects the motion state of the probe 10, reduces the number of coils, simplifies the structure of the intraocular pressure measuring device, and thus reduces the manufacturing cost and volume of the intraocular pressure measuring device. The probe head 12 made of elastic material undergoes elastic deformation when it contacts the user's eye surface, and slows down the probe 10 until it is rebounded by the eye surface in the opposite direction of the movement direction, thereby detecting the user's intraocular pressure without hurting the user's eyes.

[0038] In some optional embodiments, the intraocular pressure measuring device further comprises a catheter 40, wherein the catheter 40 is provided with a Figure 1The main body 11 is movably disposed on the slide 41 along a first direction.

[0039] In some optional embodiments, the slideway 41 includes a first end 411 and a second end 412 that are opposite to each other in a first direction. The first end 411 is provided with an opening (not marked), and the probe head 12 is extended out of the opening.

[0040] The intraocular pressure measuring device provided in this embodiment has an open slide 41, so that the probe 10 can extend out of the slide 41 from the opening position and then contact the user's eye surface to complete the intraocular pressure measurement operation. The structure is simple and the operation is convenient.

[0041] In some optional embodiments, at least a portion of the main body 11 extends from the second end 412 , and the magnetic attraction mechanism 20 is located on a side of the second end 412 away from the first end 411 and is used to attract the end of the main body 11 away from the probe head 12 .

[0042] The intraocular pressure measuring device provided in this embodiment arranges the magnetic attraction mechanism 20 on the side of the second end 412 away from the first end 411 , so that the magnetic attraction mechanism 20 attracts the main body 11 to prevent the probe 10 from sliding out of the slideway 41 from the opening of the first end 411 .

[0043] In some optional embodiments, the catheter 40 includes a first portion 42 and a second portion 43, and the slideway 41 is disposed in the first portion 42. The second portion 43 includes a chamber 431 penetrating along a first direction, at least the first portion 42 is located in the chamber 431 and forms a receiving cavity (not shown) with the inner wall surface of the chamber 431, and the first coil 30 is located in the receiving cavity.

[0044] The intraocular pressure measuring device provided in this embodiment has a first part 42 and a second part 43 designed as separate parts, so that the device is easy to assemble and convenient to maintain and replace accessories.

[0045] In some optional embodiments, the first part 42 includes a blocking portion 421 and a connecting portion 422 distributed successively along the first direction, the slide 41 passes through the blocking portion 421 and the connecting portion 422, the blocking portion 421 abuts against the end surface of the second part 43, and the connecting portion 422 is located inside the second part 43.

[0046] The intraocular pressure measuring device provided in this embodiment uses the blocking portion 421 as a positioning member of the first part 42, so that the installation position can be quickly determined when the first part 42 is installed, thereby improving installation efficiency and facilitating maintenance and replacement of accessories.

[0047] In some optional embodiments, the connecting portion 422 includes a first segment (not labeled) and a second segment (not labeled), the second segment is located on the side of the first segment away from the blocking portion 421, and the size of the second segment is smaller than the size of the first segment. The chamber 431 includes a first hole segment (not labeled) and a second hole segment (not labeled) that are interconnected, and the aperture of the second hole segment is smaller than the aperture of the first hole segment, so as to form an abutment surface (not labeled) between the first hole segment and the second hole segment. The first segment is located in the first hole segment and abuts against the abutment surface, and the second segment is located in the second hole segment.

[0048] The intraocular pressure measuring device provided in this embodiment uses the first hole segment and the second hole segment with different apertures and the first segment and the second segment with different sizes so that the installation position can be quickly determined when the first part 42 is installed, thereby improving installation efficiency and facilitating maintenance and replacement of accessories.

[0049] In some optional embodiments, an opening is provided at one end of the chamber 431 away from the first coil 30 , and the size of the opening gradually increases.

[0050] The intraocular pressure measuring device provided in this embodiment increases the size of the chamber 431 toward the magnetic attraction mechanism 20 by setting an opening with a gradually increasing size in the direction away from the first coil 30 , thereby avoiding the influence of the magnetic attraction mechanism 20 on the movement of the probe 10 .

[0051] In some optional embodiments, the intraocular pressure measuring device also includes a control module 50, which is connected to the first coil 30. The control module 50 is used to send a driving signal and a detection signal to the first coil 30, so that the first coil 30 enters a driving state when receiving the driving signal, and enters a detection state when receiving the detection signal.

[0052] The first coil 30 is arranged around the main body 11, and the coil is used to realize the driving and detection functions of the probe 10 at the same time. The meaning of the coil is the same coil or single coil with the same function, and the same coil or single coil is not limited to one coil. The direction of the current passed by the first coil in the same period is consistent and is controlled by the same driving circuit. The first coil 30 acts as both a driving coil and a detection coil.

[0053] The intraocular pressure measuring device provided in this embodiment controls the first coil 30 to enter different states through the control module 50, so that the first coil 30 can both drive the probe 10 to move and detect the movement state of the probe 10, thereby reducing the number of coils and thus reducing the manufacturing cost and volume of the intraocular pressure measuring device.

[0054] Please refer to Figure 1 to Figure 2In some optional embodiments, the magnetic attraction mechanism 20 includes a permanent magnet (not shown) and a second coil 21, and the permanent magnet is used to attract the end of the main body 11 away from the probe head 12. The second coil 21 surrounds the outside of the permanent magnet, and when the second coil 21 is energized, it generates a magnetic force that is equal to the direction opposite to the permanent magnet, so that the magnetism of the second coil 21 and the permanent magnet cancel each other, so that the magnetic attraction mechanism does not attract the probe 10.

[0055] The magnetic suction mechanism 20 can adsorb the probe 10. Preferably, when the power is off, the magnetic suction mechanism 20 adsorbs the probe 10, and when the power is on, the magnetic suction mechanism 20 releases the probe 10, thereby preventing the doctor from dropping the probe 10 when inserting the probe 10 if the intraocular pressure measurement device is not in a horizontal state, which is likely to occur due to forgetting to power on.

[0056] The intraocular pressure measuring device provided by the present application does not fall off the probe 10 in any state at the beginning, such as tilted or vertical state. Moreover, the intraocular pressure measuring device can keep the probe 10 automatically sucked in the slideway 41 without falling off, whether it is in the on state or the standby state, and the comprehensive energy consumption required is low.

[0057] In some optional embodiments, the control module 50 is connected to the second coil 21 and is used to energize the second coil 21 when the first coil 30 is in a driving state or a detection state, thereby preventing the magnetic attraction mechanism 20 from adsorbing the probe 10 .

[0058] The intraocular pressure measuring device provided in this embodiment is connected to the second coil 21 via the control module 50 , and the control module 50 uniformly controls the first coil 30 and the second coil 21 , thereby improving user experience and the intelligence of the intraocular pressure measuring device.

[0059] In some optional embodiments, the control module 50 is connected to the first coil 30 through the first coil drive circuit 51 and the first coil electromotive force amplifier circuit 52, and only one of the first coil drive circuit 51 and the first coil electromotive force amplifier circuit 52 is connected to the first coil 30 at the same time, thereby controlling the first coil 30 to be in a driving state or a detection state. An intraocular pressure algorithm module 54 is provided in the control module 50, and the intraocular pressure of the user being measured can be calculated through the intraocular pressure algorithm according to the electromotive force change detected by the first coil 30. The control module 50 is connected to the second coil 21 through the second coil drive circuit 53, and then the magnetic attraction mechanism 20 adsorbs the probe 10 when the second coil 21 is energized.

[0060] In some optional embodiments, the control module 50 is an MCU (Microcontroller Unit), and a timer 55 and a Bluetooth module 56 are also provided in the control module 50. The intraocular pressure algorithm module 54 can calculate the intraocular pressure of the user being measured through the electromotive force change detected by the first coil 30 and the timer 55. The Bluetooth module 56 is used to wirelessly communicate with the user's smart device and send the intraocular pressure data to the user's smart device. Smart devices include mobile phones, laptops, smart bracelets, etc.

[0061] The intraocular pressure measuring device provided in this embodiment can remotely communicate with the user's smart device through the Bluetooth module 56, making it convenient for the user to view the detection data and improving the intelligence of the intraocular pressure measuring device.

[0062] In some optional embodiments, the intraocular pressure measuring device further includes a display screen 60 , which is connected to the control module 50 , and the intraocular pressure data calculated by the intraocular pressure algorithm module 54 will be displayed on the display screen 60 .

[0063] The intraocular pressure measuring device provided in this embodiment displays the detection data through the display screen 60, which is convenient for users to view.

[0064] Please refer to Figures 2 to 3 When the user needs to use the intraocular pressure measurement device, the control module 50 first energizes the second coil 21 through the second coil driving circuit 53, so that the magnetic attraction mechanism 20 has no magnetism, and the probe 10 can move freely in the slide 41. The control module 50 sends a driving signal to the first coil 30 through the first coil driving circuit 51, and the first coil 30 is in a driving state. The first coil 30 is energized and pushes the probe 10 to move in the first direction until the speed of the probe 10 reaches a predetermined speed. This time period is defined as T1.

[0065] Then the control module 50 continues to energize the second coil 21 through the second coil driving circuit 53, and the control module 50 sends a detection signal to the first coil 30 through the first coil electromotive force amplifier circuit 52. The first coil 30 is not energized, and switches from the driving state to the detection state to detect the motion state of the probe 10. The probe 10 continues to move along the slide 41 with uniform deceleration due to the loss of driving force, and this time period is defined as T2.

[0066] After that, the control module 50 continues to energize the second coil 21 through the second coil driving circuit 53, and the first coil 30 is still in the detection state. The probe 10 contacts the surface of the eyeball and decelerates at a faster rate until it rebounds and leaves the surface of the eyeball in the direction from which it came. This time period is defined as T3, which is the time when the probe 10 contacts the eyeball.

[0067] Finally, the control module 50 does not send a signal to the first coil 30, and the first coil 30 is neither in the driving state nor in the detection state. The control module 50 also does not energize the second coil 21, and the magnetic attraction mechanism 20 generates a magnetic force to reset the probe 10. This time period is defined as T4.

[0068] Please refer to Figure 3 , Figure 3 It is a typical equation coordinate diagram of the electromotive force in the first coil 30 and the movement time of the probe 10, in which the horizontal axis is time t and the vertical axis is the electromotive force V in the first coil 30. Of course, in other embodiments, the equation coordinate diagram of the electromotive force and time can also be in other forms. In the above process, in the T1 time period, the probe 10 accelerates from rest. In the T2 time period, since the probe 10 loses the driving force and moves uniformly by inertia, the electromotive force generated in the first coil 30 falls back with a logarithmic (increasing function) slope after the fluctuation occurs. In the T3 time period, since the probe 10 contacts the surface of the eyeball and decelerates at a faster speed, the electromotive force generated in the first coil 30 falls back with a larger slope until the eyeball rebounds the probe 10 to leave the surface of the eyeball. In the T4 time period, the magnetic suction mechanism 20 adsorbs the probe 10, the probe 10 is stationary, and the electromotive force generated in the first coil 30 remains unchanged.

[0069] The intraocular pressure algorithm module 54 will calculate the user's intraocular pressure based on the intraocular pressure algorithm and the value of the T3 time period. The specific intraocular pressure algorithm can be designed according to actual conditions.

[0070] The intraocular pressure measuring device provided in this embodiment is driven by the main body 11 of the probe 10 by the first coil 30, thereby driving the probe head 12 to contact the user's eye surface and change the motion state, and realizing the function of detecting intraocular pressure according to the change of the motion state of the probe 10. The probe 10 is adsorbed by the magnetic suction mechanism 20 so that the probe 10 is maintained inside the intraocular pressure measuring device without falling, and the measurement is more flexible, and the measurement in the horizontal, inclined or vertical direction can be realized; because the main body 11 includes magnetic materials, the first coil 30 surrounds the outer periphery of the main body, so when the first coil 30 is energized, a thrust is generated on the probe 10 inside the first coil 30, pushing the main body 11 to drive the probe head 12 to move. At the same time, due to the movement of the probe 10, an electromotive force is generated in the first coil 30, and the first coil 30 detects the motion state of the probe 10 according to the change of the electromotive force. The first coil 30 not only drives the main body 10 of the probe 10 to drive the probe head 12 to move, but also detects the motion state of the probe 10, reduces the number of coils, simplifies the structure of the intraocular pressure measuring device, and thus reduces the manufacturing cost and volume of the intraocular pressure measuring device. The probe head 12 made of elastic material undergoes elastic deformation when it contacts the user's eye surface, and slows down the probe 10 until it is rebounded by the eye surface in the opposite direction of the movement direction, thereby detecting the user's intraocular pressure without hurting the user's eyes.

[0071] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. An intraocular pressure measuring device, characterized in that: include: The probe comprises a main body and a probe head arranged at one end of the main body, wherein the material of the main body comprises a magnetic material; A magnetic attraction mechanism, the magnetic attraction mechanism is used to attract the probe; A first coil, the first coil is arranged around the main body, the first coil includes a driving state and a detection state, in which the first coil is used to push the probe to move, and in the detection state, the first coil is used to detect the movement state of the probe; A catheter, wherein a slide extending along a first direction is provided in the catheter, and the main body is movably arranged on the slide along the first direction; the catheter includes a first part and a second part, the slide is arranged in the first part, the second part includes a chamber passing through along the first direction, at least part of the first part is located in the chamber and forms a accommodating chamber between the first part and the inner wall surface of the chamber, the first coil is located in the accommodating chamber, the first part includes a blocking part and a connecting part distributed successively along the first direction, the slide passes through the blocking part and the connecting part, the blocking part abuts against the end face of the second part, and the connecting part is located in the second part.

2. The intraocular pressure measuring device according to claim 1, characterized in that: It also includes a control module, which is connected to the first coil and is used to send a drive signal and a detection signal to the first coil, so that the first coil enters a drive state when receiving the drive signal, and enters a detection state when receiving the detection signal.

3. The intraocular pressure measuring device according to claim 2, characterized in that: The magnetic attraction mechanism comprises: A permanent magnet, the permanent magnet being used to attract the end of the main body away from the probe head; The second coil is surrounded by the outer side of the permanent magnet. When the second coil is energized, it generates magnetism opposite to that of the permanent magnet, so that the magnetic attraction mechanism does not attract the probe.

4. The intraocular pressure measuring device according to claim 3, characterized in that: The control module is connected to the second coil and is used to energize the second coil in the driving state or the detection state, so that the magnetic attraction mechanism does not adsorb the probe.

5. The intraocular pressure measuring device according to claim 1, characterized in that: The slideway comprises a first end and a second end opposite to each other in a first direction, the first end is provided with an opening, and the probe head extends out of the opening.

6. The intraocular pressure measuring device according to claim 5, characterized in that: At least a portion of the main body extends out from the second end, and the magnetic attraction mechanism is located on a side of the second end away from the first end and is used to attract an end of the main body away from the probe head.

7. The intraocular pressure measuring device according to claim 1, characterized in that: The connecting portion includes a first segment and a second segment, wherein the second segment is located at a side of the first segment away from the blocking portion, and the size of the second segment is smaller than the size of the first segment; The chamber includes a first hole segment and a second hole segment that are interconnected, wherein the aperture of the second hole segment is smaller than the aperture of the first hole segment so as to form an abutment surface between the first hole segment and the second hole segment, the first segment is located in the first hole segment and abuts against the abutment surface, and the second segment is located in the second hole segment.

8. The intraocular pressure measuring device according to claim 7, characterized in that: A protrusion is provided at one end of the main body of the probe away from the first coil; an opening is provided at one end of the chamber away from the first coil, and the radial size of the opening of the chamber gradually increases in the direction away from the first coil; the protrusion and the opening of the chamber are arranged opposite to each other along the first direction.

9. The intraocular pressure measuring device according to claim 1, characterized in that: The probe head is made of elastic material.

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