Ophthalmic surgical device

Abstract

The invention provides an ophthalmic surgical device, comprising: a probe having a suction channel and provided with a suction port and a discharge port respectively communicated with the suction channel; the first shell is connected with at least one part of the probe and moves synchronously with the at least one part of the probe, a first channel is defined in the first shell, and the first channel is communicated with the discharge port; a second channel is defined in the second shell, and the second channel and the first channel are mutually independent and do not communicate with each other; and the driving piece is arranged in the second channel and is connected with the first shell so as to drive at least one part of the probe to do reciprocating motion through the first shell. According to the ophthalmic surgery device, the first shell is located on the outer side of the inner space of the second shell, installation and operation of the driving piece are not affected, the leakproofness of the second shell is not affected, and the assembling efficiency and the safety performance are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices. Specifically, the present invention relates to an ophthalmic surgical device. Background Art

[0002] Many microsurgical procedures require precise cutting and / or removal of various body tissues. For example, certain ophthalmic surgical procedures require cutting and / or removing vitreous humor (a transparent gelatinous material that fills the posterior segment of the eye). Vitreous humor or vitreous body includes many microscopic fibers that are usually attached to the retina. Therefore, the cutting and removal operations of the vitreous body must be quite careful to avoid pulling on the retina, separating the retina from the choroid, rupturing the retina, or in the worst case, cutting and removing the retina itself.

[0003] In ophthalmic surgery, a vitrector is one of the most commonly used surgical instruments for vitreoretinal surgery. In existing vitrectors, the liquid suction channel is usually located inside the space where the driving member is installed, that is, the liquid discharge channel and the driving member share a space, which is likely to affect the installation of the driving member and the structural complexity. When the driving member includes an air chamber, it is also easy to cause improper sealing of the air chamber, increasing the risk of liquid leakage and causing potential safety hazards. Summary of the Invention

[0004] An object of the present invention is to provide a new technical solution for an ophthalmic surgical device, which can solve the technical problem that the liquid discharge channel and the driving member in the prior art share a space, which is likely to affect the installation of the driving member and the structural complexity.

[0005] According to a first aspect of the present invention, there is provided an ophthalmic surgical device, comprising: a probe having a suction channel, and a suction port and a discharge port respectively communicating with the suction channel being provided on the probe; a first housing connected to at least a part of the probe and moving synchronously with at least a part of the probe, a first channel being defined in the first housing and communicating with the discharge port; a second housing having a second channel defined therein, the second channel being independent of and not communicating with the first channel; and a driving member installed in the second channel and connected to the first housing to drive at least a part of the probe to reciprocate through the first housing.

[0006] Optionally, the driving member includes: a piston located in the second channel and connected to the first housing, which divides the second channel into a first chamber and a second chamber; a first pipeline and a second pipeline, the first pipeline inputs fluid into the first chamber, and the second pipeline inputs fluid into the second chamber to adjust the position of the piston in the second channel according to the pressure difference between the first chamber and the second chamber.

[0007] Optionally, the piston includes: a piston rod, the first end of which extends out of the second housing and is connected to the first housing; a plug body provided at the second end of the piston rod and located in the second channel.

[0008] Optionally, a flexible diaphragm is provided between the outer side surface of the plug body and the inner wall surface of the second channel.

[0009] Optionally, at least a part of the first housing is located outside the second housing.

[0010] Optionally, the first housing and the second housing are an integral part.

[0011] Optionally, the probe includes: an outer probe, an activity channel is defined in the outer probe, and the suction port is provided on the side surface of the outer probe; an inner probe, the inner probe is movably provided in the activity channel, the inner probe has a cutting edge, the cutting edge cooperates with the outer probe for cutting, and the inner probe has the suction channel and the discharge port.

[0012] Optionally, the first housing is rigidly connected to the inner probe.

[0013] Optionally, at least a part of the first channel extends along a first direction, the inner probe extends along a second direction, and the included angle between the first direction and the second direction is 15°-70°.

[0014] Optionally, the first channel includes: a transition channel, the first end of the transition channel is rigidly connected to the inner probe and communicated with the discharge port, and the transition channel is coaxially arranged with the inner probe; a fluid channel, the first end of the fluid channel is communicated with the second end of the transition channel, and the included angle between the fluid channel and the transition channel is 15°-70°.

[0015] Optionally, the inner diameter of the first channel is larger than the inner diameter of the inner probe.

[0016] Optionally, the ophthalmic surgical device further includes: a third housing having an accommodation space, an opening communicating with the accommodation space is formed on the third housing, one end of the probe extends out of the third housing through the opening, a part of the outer side surface of the probe is connected to the inner side surface of the third housing, and at least a part of the first housing and the second housing is located in the accommodation space.

[0017] The ophthalmic surgical device according to the embodiment of the present invention combines a probe, a first housing, a second housing and a driving member. The first housing is located outside the inner space of the second housing, which not only does not affect the installation and operation of the driving member, but also does not affect the airtightness of the second housing, improving the assembly efficiency and safety performance.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 FIG. is a perspective structural view of an ophthalmic surgical device provided by an embodiment of the present invention;

[0021] Figure 2 FIG. is a cross-sectional view taken along C-C;

[0022] Figure 3 is Figure 2 an enlarged view of area a in;

[0023] Figure 4 is Figure 2 an enlarged view of area b in;

[0024] Figure 5 FIG. is a partial perspective structural view of an ophthalmic surgical device provided by an embodiment of the present invention;

[0025] Figure 6 FIG. is a cross-sectional view taken along D-D;

[0026] Figure 7 is Figure 6 an enlarged view of area c in;

[0027] Figure 8 is Figure 6 an enlarged view of area d in;

[0028] Figure 9 FIG. is a partial cross-sectional enlarged view of an ophthalmic surgical device provided by an embodiment of the present invention.

[0029] Reference Numerals:

[0030] Ophthalmic surgical device 100;

[0031] Probe 10; outer probe 11; suction port 12; inner probe 13; cutting edge 131; suction channel 14; discharge port 15;

[0032] First housing 20; first channel 21; transition channel 22; fluid channel 23; lead-out pipe 24; first section body 25; second section body 26;

[0033] Second housing 30; second channel 31; first chamber 311; second chamber 312; front cover 32; rear cover 33;

[0034] Piston 41; piston rod 411; plug body 412; first pipeline 42; second pipeline 43; flexible diaphragm 44;

[0035] Third housing 50; accommodation space 51; opening 52; step portion 53;

[0036] First sealing ring 61; second sealing ring 62; third sealing ring 63. Detailed Description of the Invention

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0039] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0040] In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0042] The ophthalmic surgical device 100 according to an embodiment of the present invention will now be specifically described with reference to the accompanying drawings.

[0043] As Figures 1 to 9As shown, the ophthalmic surgical device 100 according to an embodiment of the present invention includes a probe 10, a first housing 20, a second housing 30, and a driving member.

[0044] Specifically, the probe 10 has a suction channel 14. A suction port 12 and a discharge port 15 that are respectively in communication with the suction channel 14 are provided on the probe 10. The first housing 20 is connected to at least a part of the probe 10 and moves synchronously with at least a part of the probe 10. A first channel 21 is defined in the first housing 20, and the first channel 21 is in communication with the discharge port 15. A second channel 31 is defined in the second housing 30. The second channel 31 is independent of and not in communication with the first channel 21. The driving member is installed in the second channel 31 and is connected to the first housing 20 to drive at least a part of the probe 10 to reciprocate through the first housing 20.

[0045] In other words, the ophthalmic surgical device 100 according to an embodiment of the present invention mainly consists of a probe 10, a first housing 20, a second housing 30, and a driving member. A suction channel 14 is defined in the probe 10. A suction port 12 and a discharge port 15 are respectively formed on the probe 10, and the suction port 12 and the discharge port 15 are respectively in communication with the suction channel 14. That is to say, during the operation, the fluid can flow into the suction channel 14 through the suction port 12, and then the fluid in the suction channel 14 can flow out through the discharge port 15.

[0046] Among them, the first housing 20 is connected to at least a part of the probe 10 and moves synchronously with at least a part of the probe 10, that is, at least a part of the probe 10 can be driven to move through the first housing 20. A first channel 21 is provided in the first housing 20, and the first channel 21 is in communication with the discharge port 15. That is to say, the fluid flowing out through the discharge port 15 enters the first channel 21.

[0047] A second channel 31 is provided in the second housing 30. A driving member can be installed in the second channel 31. The driving member is connected to the first housing 20 and can drive the first housing 20 to reciprocate along a preset direction through the driving member, so as to drive at least a part of the probe 10 to reciprocate in the preset direction.

[0048] It should be noted that the first channel 21 and the second channel 31 are independent of and not in communication with each other. That is to say, on the one hand, the fluid flowing out from the discharge port 15 does not enter the second channel 31; on the other hand, the first channel 21 is not arranged inside the second channel 31, that is, the first housing 20 does not occupy the internal space of the second housing 30. For example, when the second housing 30 is a cylinder housing, the first housing 20 does not share space with the rear cylinder, and it is not easy to damage the airtightness of the cylinder during movement, avoiding the risk of air leakage.

[0049] Thus, the ophthalmic surgical device 100 according to an embodiment of the present invention combines the probe 10, the first housing 20, the second housing 30 and the driving member. The first housing 20 is located outside the internal space of the second housing 30, which not only does not affect the installation and operation of the driving member, but also does not affect the airtightness of the second housing 30, improving the assembly efficiency and safety performance.

[0050] Optionally, the first housing 20 includes a first section 25. A channel is provided in the first section 25. The first section 25 is connected to the probe 10 and communicates with the suction channel 14.

[0051] According to an embodiment of the present invention, as Figures 6 to 9 shown, the driving member includes a piston 41, a first pipeline 42 and a second pipeline 43. Specifically, the piston 41 is located in the second channel 31 and is connected to the first housing 20, and divides the second channel 31 into a first chamber 311 and a second chamber 312. The first pipeline 42 inputs fluid into the first chamber 311, and the second pipeline 43 inputs fluid into the second chamber 312 to adjust the position of the piston 41 in the second channel 31 according to the pressure difference between the first chamber and the second chamber. For example, the compressed air input through the first pipeline 42 can push the piston 41 forward, and the compressed air input through the second pipeline 42 can push the piston 41 backward, thereby driving at least a part of the probe 10 to reciprocate.

[0052] That is to say, at least a part of the piston 41 can be installed in the second channel 31, and the piston 41 is connected to the first housing 20, and can transmit a force to the first housing 20. Moreover, the piston 41 can divide the second channel 31 into the first chamber 311 and the second chamber 312. Among them, the fluid can be input into the first chamber 311 through the first pipeline 42, the fluid can be input into the second chamber 312 through the second pipeline 43, and by adjusting the magnitude relationship of the pressures in the first chamber 311 and the second chamber 312, the specific position of the piston 41 in the second channel 31 can be controlled, thereby controlling the state of the probe 10. When the first pipeline 42 and the second pipeline 43 are air pipes, the fluid can be gas, that is, the pressure difference is controlled by inputting gas.

[0053] In this embodiment, by combining the piston 41, the first pipeline 42 and the second pipeline 43, the state of the probe 10 can be regulated in a pneumatic manner, which has the advantages of good safety performance and easy implementation.

[0054] In some specific embodiments of the present invention, as Figure 9As shown, the piston 41 includes a piston rod 411 and a piston body 412. The first end of the piston rod 411 extends out of the second housing 30 and is connected to the first housing 20. The piston body 412 is provided at the second end of the piston rod 411 and is located in the second channel 31. For example, the piston rod 411 is located in the second chamber 312 and is spaced apart from a part of the inner wall surface of the second chamber 312.

[0055] That is to say, the piston 41 is mainly composed of a piston rod 411 and a piston body 412. For example, the piston rod 411 is an elongated member. One end of the piston rod 411 in the axial direction of itself extends out of the second housing 30 and is then connected to the first housing 20. The other end of the piston rod 411 in the axial direction of itself is provided with a piston body 412, and the piston body 412 is located in the second channel 31. Among them, when the piston 41 uses the piston rod 411 and the piston body 412 to cooperate, the second housing 30 can be defined as the cylinder housing. For example, the left end of the piston rod 411 extends out of the second housing 30, and the right end and the middle part of the piston rod 411 are located in the second chamber 312 and are on the left side of the piston body 412. A first chamber 311 is provided on the right side of the piston body 412.

[0056] In this embodiment, by using the cooperation of the piston rod 411 and the piston body 412, and the piston rod 411 being connected to the first housing 20, it is beneficial to control the position of the first housing 20, and further control the state of the probe 10.

[0057] Optionally, a sealing structure is provided between the outer side surface of the piston rod 411 and the inner wall surface of the second housing 30. For example, a first sealing ring 61 is sleeved on the piston rod 411, which can improve the tightness between the piston rod 411 and the second housing 30.

[0058] Optionally, one end of the first section body 25 is connected to the probe 10, the other end of the first section body 25 is connected to the piston rod 411, and the end of the first section body 25 is closed by the piston rod 411. The first housing 20 further includes a second section body 26. One end of the second section body 26 is connected to the first section body 25, and one end of the second section body 26 is located between the two ends of the first section body 25. A channel is also defined in the second section body 26 and is communicated with the channel of the first section body 25. The second section body 26 is used to lead out the fluid in the first section body 25.

[0059] According to an embodiment of the present invention, as Figure 8 and Figure 9 shown, a flexible diaphragm 44 is provided between the outer side surface of the piston body 412 and the inner wall surface of the second channel 31. For example, a flexible diaphragm 44 is provided on the outer peripheral edge of the piston body 412. The flexible diaphragm 44 has tension and can be deformed under force, that is, the flexible diaphragm expands and deforms under the drive of the pressure difference on both sides, which is beneficial to realizing the pressure linkage change between the first chamber 311 and the second chamber 312.

[0060] Optionally, the piston rod 411 is rigidly connected to the first housing 20, that is, they cooperate with each other through a rigid connection method, which is convenient for controlling the movement direction of the first housing 20, and further convenient for controlling the movement direction of at least a part of the probe 10.

[0061] In some specific embodiments of the present invention, at least a part of the first housing 20 is located outside the second housing 30. For example, a part of the first housing 20 is located above the second housing 30. In this embodiment, by arranging at least a part of the first housing 20 outside the second housing 30, it is beneficial to make the first channel 21 and the second channel 31 independent of each other and not communicate with each other.

[0062] According to an embodiment of the present invention, the first housing 20 and the second housing 30 are an integral part. That is to say, in production, the interconnected first housing 20 and second housing 30 can be prepared by synchronous processes, improving the production efficiency.

[0063] In some specific embodiments of the present invention, as Figure 3 shown, the probe 10 includes an outer probe 11 and an inner probe 13. An activity channel is defined inside the outer probe 11. A suction port 12 is formed on the side surface of the outer probe 11. The inner probe 13 is movably arranged in the activity channel. The inner probe 13 has a cutting edge 131, and the cutting edge 131 cooperates with the outer probe 11 for cutting. The inner probe 13 has a suction channel 14 and a discharge port 15. Optionally, the cutting edge 131 of the inner probe 13 can be located on the side surface of the inner probe 13, for example, on the same side as the suction port 12. For example, an eccentrically designed suction port 12 is provided on the upper side surface of the outer probe 11, and an eccentrically designed cutting edge 131 is also provided on the upper side surface of the inner probe 13.

[0064] That is to say, in this embodiment, the probe 10 is mainly composed of an outer probe 11 and an inner probe 13. An activity channel is provided inside the outer probe 11. A suction port 12 can be formed on the side surface of the outer probe 11. The inner probe 13 is installed in the activity channel. The cutting edge 131 of the inner probe 13 can cooperate with the suction port 12 to achieve cutting. In addition, the inner probe 13 has a suction channel 14 and a discharge port 15. That is to say, the fluid enters the outer probe 11 through the suction port 12, then enters the inner probe 13, and finally flows out of the inner probe 13 and enters the first channel 21. For example, the piston 41 moves forward and backward, driving the inner probe 13 to reciprocate in the outer probe 11 to complete vitreous body cutting.

[0065] It should be noted that when the suction port 12 can be provided on the side surface of the outer probe 11, the design of the eccentric suction pipeline structure can be realized. For example, the suction port 12 is provided on the upper side surface of the outer probe 11. Moreover, on the basis of eccentric suction, in combination with the cooperation of the outer probe 11 and the inner probe 13, the inner probe 13 has an ultra-fine chamber, and the outer probe 11 does not need to be provided with an ultra-fine chamber, so that the movement distance of the suction liquid flow in the ultra-fine lumen is shorter, which is not easy to cause blockage, and the average suction pipe diameter is thicker, effectively improving the suction efficiency, and can solve the technical problem of the long ultra-fine lumen suction stroke in the prior art, which is easy to cause blockage.

[0066] In this embodiment, by defining that the probe 10 includes an outer probe 11 and an inner probe 13, the eccentric suction pipeline structure is realized, which is beneficial to solving the technical problem of the flow distance of the suction liquid flow in the ultra-fine lumen, thereby reducing the risk of blockage.

[0067] According to an embodiment of the present invention, the first housing 20 is rigidly connected to the inner probe 13, which is beneficial to improving the force transmission rate and facilitating the control of the reciprocating movement of the inner probe 13.

[0068] Optionally, the first housing 20 is injection molded from a rigid material, so as to be directly rigidly connected to the inner probe 13.

[0069] In some specific embodiments of the present invention, at least a part of the first channel 21 extends along the first direction, the inner probe 13 extends along the second direction, and the included angle between the first direction and the second direction is 15°-70°. For example, the inner probe 13 extends along the horizontal direction, and a part of the first channel 21 extends obliquely backward, and the included angle between this part and the extension direction of the inner probe 13 is 15°-70°, such as the included angle is 15°, 20°, 30°, 50°, 60° or 70°, etc. For example, a branch channel can be provided in the first housing 20, that is, at least a part of the first channel 21, and the included angle between the branch channel and the horizontal direction can be between 15°-70°. For example, the first section 25 extends along the second direction, and the second section 26 extends along the first direction.

[0070] In this embodiment, by defining that at least a part of the first channel 21 extends along the first direction, the inner probe 13 extends along the second direction, and the included angle between the first direction and the second direction is 15°-70°, for example, the inner probe 13 extends along the second direction, and the included angle between the first direction and the second direction is 15°, 20°, 30°, 40°, 50° or 70°, etc. By adopting the above included angle range, it is not only beneficial to the smooth flow of the fluid, but also not easy to cause blockage.

[0071] According to an embodiment of the present invention, as Figure 8As shown, the first channel 21 includes a transition channel 22 and a fluid channel 23. Among them, the first end of the transition channel 22 is rigidly connected to the inner probe 13 and connected to the discharge port 15. The transition channel 22 is coaxially arranged with the inner probe 13. The first end of the fluid channel 23 communicates with the second end of the transition channel 22, and the included angle between the fluid channel 23 and the transition channel 22 is 15° - 70°. For example, the transition channel 22 is provided in the first body 25, and the fluid channel 23 is provided in the second body 26.

[0072] That is to say, in this embodiment, the first channel 21 is mainly composed of a transition channel 22 and a fluid channel 23. The fluid flows out from the discharge port 15 and first enters the transition channel 22, and then enters the fluid channel 23. Among them, the transition channel 22 can not only improve the smoothness of fluid flow, but also facilitate the connection between the first housing 20 and the probe 10. In addition, the transition channel 22 is coaxially arranged with the inner probe 13, and the included angle between the fluid channel 23 and the transition channel 22 is 15° - 70°. That is to say, the included angle between the inner probe 13 and the fluid channel 23 is 15° - 70°. Optionally, the first channel 21 further includes a lead-out pipe 24 for leading out the fluid in the fluid channel 23, or a connecting external suction pipe, which is convenient for leading out the fluid and controlling the direction and position of fluid lead-out, and will not be elaborated here. For example, the other end of the second body 26 communicates with the lead-out pipe 24. Optionally, when at least a part of the first housing 20 is located outside the second housing 30, at least a part of the lead-out pipe 24 serves as at least a part located outside the second housing 30.

[0073] In some specific embodiments of the present invention, the inner diameter of the first channel 21 is larger than the inner diameter of the inner probe 13. For example, the discharge port 15 of the inner probe 13 has a first inner diameter, and the first channel 21 has a second inner diameter, and the second inner diameter is larger than the first inner diameter. In this embodiment, by defining that the inner diameter of the first channel 21 is larger than the inner diameter of the inner probe 13, the occurrence of blockage during the suction process is reduced.

[0074] Optionally, when the eye surgical device 100 of the embodiment of the present invention starts negative pressure, the suction liquid flow can flow through the inner probe 13 to the first housing 20, and then directly flow to the external suction pipe through the first channel 21 of the first housing 20.

[0075] According to an embodiment of the present invention, as Figure 2 shown, the eye surgical device 100 further includes a third housing 50. The third housing 50 has an accommodation space 51. An opening 52 communicating with the accommodation space 51 is provided on the third housing 50. One end of the probe 10 extends out of the third housing 50 through the opening 52. A part of the outer side surface of the probe 10 is connected to the inner side surface of the third housing 50. At least a part of the first housing 20 and the second housing 30 is located in the accommodation space 51.

[0076] That is to say, in this embodiment, the ophthalmic surgical device 100 further includes a third housing 50. The first housing 20 and the second housing 30 can be received in the accommodation space 51, and the third housing 50 can function as a housing. Moreover, an opening 52 can be formed in the third housing 50, and the opening 52 can communicate with the accommodation space 51. One end of the probe 10 can extend out of the third housing 50 through the opening 52, and the second end of the probe 10 can be connected to the first housing 20 located in the accommodation space 51.

[0077] In this embodiment, by defining that the ophthalmic surgical device 100 further includes a third housing 50, it is beneficial to improve the aesthetic appearance of the ophthalmic surgical device 100.

[0078] Optionally, the third housing 50 includes a main body and a stepped portion 53. Among them, the accommodation space 51 is defined in the main body. The stepped portion 53 can be located in the main body, and the opening can penetrate the side wall of the main body and the corresponding stepped portion 53. For example, the main body extends in the horizontal direction, the stepped portion 53 is provided on the inner wall at the left end of the main body, and the opening extends in the horizontal direction and penetrates the left end of the main body and the stepped portion 53.

[0079] Optionally, a sealing structure can be provided between the inner wall surface of the stepped portion 53 and the second housing 30. For example, a second sealing ring 62 is sleeved on the second housing 30. By using the second sealing ring 62, it is beneficial to ensure the tightness between the second housing 30 and the stepped portion 53.

[0080] Optionally, the second housing 30 includes a front cover 32 and a rear cover 33, and the second channel 31 is defined by the cooperation of the front cover 32 and the rear cover 33.

[0081] Optionally, a sealing structure is provided between the outer side surface of the front cover 32 and the inner wall surface of the rear cover 33. For example, a third sealing ring 63 is sleeved on the outer periphery of the front cover 32.

[0082] Optionally, when a part of the outer side surface of the front cover 32 corresponds to the outer side surface of the first housing 20 and another part corresponds to the outer side surface of the rear cover 33, the third sealing ring 63 can serve as both the sealing structure between the outer side surface of the front cover 32 and the inner wall surface of the rear cover 33 and the sealing structure between the outer side surface of the front cover 32 and the outer side surface of the first housing 20.

[0083] All in all, the ophthalmic surgical device 100 according to the embodiment of the present invention includes a probe 10, a first housing 20, a second housing 30, and a driving member. The first housing 20 is located outside the inner space of the second housing 30, which not only does not affect the installation and operation of the driving member, but also does not affect the tightness of the second housing 30, improving the assembly efficiency and safety performance.

[0084] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An ophthalmic surgical device, characterized in that, Comprising: A probe having a suction channel, with a suction port and a discharge port provided on the probe and respectively communicating with the suction channel; A first housing connected to at least a part of the probe and moving synchronously with at least a part of the probe, a first channel being defined in the first housing and communicating with the discharge port; A second housing, a second channel being defined in the second housing, the second channel being independent of and non - communicating with the first channel; A driving member installed in the second channel and connected to the first housing to drive at least a part of the probe to reciprocate through the first housing.

2. The ophthalmic surgical device according to claim 1, wherein The driving member includes: A piston located in the second channel and connected to the first housing, and separating the second channel into a first chamber and a second chamber; A first pipeline and a second pipeline, the first pipeline inputting fluid into the first chamber, and the second pipeline inputting fluid into the second chamber to adjust the position of the piston in the second channel according to the pressure difference between the first chamber and the second chamber.

3. The ophthalmic surgical device according to claim 2, wherein, The piston includes: A piston rod, the first end of which extends out of the second housing and is connected to the first housing; A plug body provided at the second end of the piston rod and located in the second channel.

4. The ophthalmic surgical device according to claim 3, characterized in that, A flexible diaphragm is provided between the outer side surface of the plug body and the inner wall surface of the second channel.

5. The ophthalmic surgical device according to claim 1, characterized in that, At least a part of the first housing is located outside the second housing.

6. The ophthalmic surgical device according to claim 1, wherein, The first housing and the second housing are an integral part.

7. The ophthalmic surgical device according to claim 1, wherein, The probe includes: An outer probe, an activity channel being defined in the outer probe, and the suction port being provided on the side surface of the outer probe; An inner probe movably provided in the activity channel, the inner probe having a cutting edge that cooperates with the outer probe for cutting, and the inner probe having the suction channel and the discharge port.

8. The ophthalmic surgical device according to claim 7, wherein, The first housing is rigidly connected to the inner probe.

9. The ophthalmic surgical device according to claim 8, characterized in that, At least a part of the first channel extends in a first direction, the inner probe extends in a second direction, and the angle between the first direction and the second direction is 15° - 70°.

10. The ophthalmic surgical device according to claim 9, wherein, The first channel includes: A transition channel, the first end of which is rigidly connected to the inner probe and communicates with the discharge port, and the transition channel is coaxially arranged with the inner probe; A fluid channel, the first end of which communicates with the second end of the transition channel, and the angle between the fluid channel and the transition channel is 15° - 70°.

11. The ophthalmic surgical device according to claim 8 or 9 or 10, characterized in that, The inner diameter of the first channel is larger than the inner diameter of the inner probe.

12. The ophthalmic surgical device according to claim 1 or 7, characterized in that, Further comprising: A third housing having a receiving space, an opening communicating with the receiving space being provided on the third housing, one end of the probe extending out of the third housing through the opening, the outer side surface of a part of the probe being connected to the inner side surface of the third housing, and at least a part of the first housing and the second housing being located in the receiving space.

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