Intelligent phacoemulsification device and method of use

Abstract

The application relates to an intelligent ophthalmic ultrasonic emulsifier and a use method, and belongs to the technical field of ophthalmic surgical instruments, which comprises a main machine body, an operating handle, an anchor component and a viscosity type self-locking mechanism, an ultrasonic amplitude rod, a perfusion pipeline and a suction pipeline are arranged in the operating handle, an emulsification needle head and a perfusion sleeve are arranged at one end of the operating handle, a liquid inlet chamber is formed between the emulsification needle head and the perfusion sleeve, the anchor component is arranged in the liquid inlet chamber and is used for anchoring a hard nucleus in front of an opening of the emulsification needle head, and the viscosity type self-locking mechanism is arranged in the suction pipeline and comprises a hairspring disc body provided with a plurality of micropores; the hairspring disc body is configured to be deformed to block the suction pipeline when a high-viscosity fluid cannot pass through the micropores; the hard nucleus is anchored by the anchor component, so that the ocular tissue is prevented from being damaged by the rebound of the nucleus block; meanwhile, the viscosity type self-locking mechanism is used for instantaneously blocking the suction pipeline when the vitreous body is sucked, so that the retina is prevented from being damaged by traction, and the surgical safety and efficiency are improved.

Description

Technical Field

[0001] This invention belongs to the field of ophthalmic surgical instruments technology, and relates to an intelligent ophthalmic phacoemulsification device and its usage method. Background Technology

[0002] Cataracts are a common blinding disease in ophthalmology. Phacoemulsification surgery is currently the mainstream minimally invasive surgical method for treating cataracts. Its core principle is to use an ultrasonic emulsifier to generate high-frequency vibrations to emulsify and break up the lens nucleus. The emulsified debris is then removed from the eye through a suction system. It has advantages such as small surgical incision, fast recovery, and minimal trauma.

[0003] Existing ophthalmic phacoemulsification devices mainly consist of a main unit, a foot pedal controller, and an operating handle. The operating handle typically contains an ultrasonic amplitude transformer, an infusion line, and an aspiration line. The ultrasonic amplitude transformer drives the emulsification needle to vibrate and emulsify the lens nucleus. The infusion line delivers balanced saline to maintain the anterior chamber pressure in the eye, and the aspiration line removes emulsified debris and excess aqueous humor. However, in actual clinical applications, existing phacoemulsification devices still have many technical defects.

[0004] During the procedure, when encountering a hard lens nucleus, the nucleus is prone to bouncing under ultrasonic vibration. This not only affects emulsification efficiency and prolongs the operation time, but may also impact fragile tissues such as the posterior capsule and iris, leading to serious surgical complications such as posterior capsule rupture and iris damage, increasing the surgical risk. Currently, existing phacoemulsification devices do not have an effective hard core anchoring structure, making it impossible to fix the bouncing hard core. The position of the emulsification needle can only be adjusted based on the surgeon's experience, which requires a very high level of skill from the surgeon and is not conducive to the standardized implementation of the procedure.

[0005] Meanwhile, if the posterior capsule ruptures during the procedure, the highly viscous vitreous humor can easily be drawn into the aspiration tube, leading to retinal traction and serious complications such as retinal detachment, endangering the patient's vision. Current phacoemulsification aspiration systems mostly only have simple aspiration functions, lacking identification and self-locking mechanisms for highly viscous vitreous humor. They cannot promptly block the aspiration tube in the early stages of vitreous humor aspiration, relying solely on the doctor to manually shut off the aspiration function after noticing the abnormality. This delayed response makes it difficult to effectively prevent retinal traction damage. Therefore, we propose an intelligent ophthalmic phacoemulsification device and its usage method to solve the problems mentioned above. Summary of the Invention

[0006] This invention addresses the problems in existing ophthalmic phacoemulsification surgeries, such as the hard core easily bouncing and damaging the posterior capsule / iris under ultrasonic vibration, the need for fixation relying on the surgeon's experience or a second instrument, and the vitreous traction injury and delayed response caused by the aspiration of vitreous body into the suction tube when the posterior capsule ruptures. Targeted research and development has been conducted, and the research and development approach is as follows: Based on the conventional handle structure of existing ultrasonic emulsifiers, this invention optimizes the inlet chamber and suction tubing, and further develops a technical solution with manual pushing of the handle's outer wall as the core operation. This solution organically combines the extended anchoring mechanism with the conductive bridge seat, connecting the ultrasonic amplitude rod and the deformation sealing mechanism through structures such as the handle mounting hole / waist-shaped hole. This enables a single handle operation to simultaneously complete hard-core anchoring, vibration-assisted fragmentation, and passive sealing triggered by high-viscosity vitreous. To solve the above problems, this invention provides an intelligent ophthalmic ultrasonic emulsifier and its usage method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an intelligent ophthalmic phacoemulsification device, comprising: Main unit; An operating handle is provided, which contains an ultrasonic amplitude transformer, an infusion line, and an aspiration line. One end of the operating handle is detachably connected to an emulsification needle and an infusion cannula. The emulsification needle is connected to the ultrasonic amplitude transformer and is located inside the infusion cannula. A liquid inlet chamber is formed between the emulsification needle and the infusion cannula, and the liquid inlet chamber is connected to the infusion line. An anchoring assembly, disposed within the liquid inlet chamber, is used to anchor the hard core in front of the opening of the emulsifying needle. In addition, a viscosity-type self-locking mechanism is disposed in the suction line. The viscosity-type self-locking mechanism includes a hairspring disc body with multiple micro-holes. The hairspring disc body is configured to deform to block the suction line when the high-viscosity fluid cannot pass through the micro-holes.

[0008] As a further improvement to the above technical solution: The anchoring assembly includes two barbs movably disposed in the liquid inlet chamber, the two barbs being curved at one end toward the head of the emulsifying needle for inserting into and anchoring the hard core; The outer wall of the emulsifying needle is fitted with multiple rubber support pads, and multiple through holes are opened on the rubber support pads. The needle rod is slidably inserted into the through holes.

[0009] One end of the operating handle is provided with a mounting hole, and a push rod is slidably disposed in the mounting hole. One end of the push rod is fixedly connected to a connecting ring, and one end of each of the two spikes is fixedly connected to the connecting ring. The outer wall of the operating handle has an oblong hole that communicates with the mounting hole. A connecting rod is provided in the oblong hole, and the bottom end of the connecting rod is fixedly connected to the other end of the push rod.

[0010] The outer wall of the operating handle is provided with a limiting groove coaxial with the waist-shaped hole. A pushing plate is slidably provided in the limiting groove. The pushing plate is fixedly connected to the top of the connecting rod. The top of the pushing plate is provided with anti-slip texture.

[0011] The operating handle has an installation cavity, the ultrasonic amplitude transformer is located in the installation cavity, and multiple leaf springs are provided between the ultrasonic amplitude transformer and the inner wall of the installation cavity. The bottom wall of the waist-shaped hole has an insertion hole that communicates with the mounting cavity. A conductive bridge seat is provided in the insertion hole. The top end of the conductive bridge seat abuts against the push rod, and the bottom end of the conductive bridge seat is fixedly connected to the ultrasonic amplitude transformer.

[0012] The inner wall of the infusion sleeve is provided with a limiting baffle. A reflux chamber is formed between the limiting baffle, the end of the operating handle and the inner wall of the infusion sleeve. The reflux chamber is connected to the suction pipeline. The outer wall of the emulsifying needle is provided with a drain port, which is connected to the reflux chamber.

[0013] The viscosity-type self-locking mechanism also includes multiple elastic hairsprings and tension springs. One end of each elastic hairspring is connected to the inner wall of the suction pipe, and the other end is connected to the outer edge of the hairspring disc. The suction pipe is also equipped with a support rod, and the tension spring is connected between the support rod and the hairspring disc.

[0014] One end of the suction pipe is provided with an assembly groove, and a connecting cylinder is threaded into the assembly groove. The support rod and multiple elastic hairsprings are fixed in the connecting cylinder, and a flow channel gap is formed between the hairspring disc and the connecting cylinder.

[0015] It also includes a foot pedal control device, which is connected to the main body.

[0016] A method of using an intelligent ophthalmic phacoemulsification device, applied to the aforementioned intelligent ophthalmic phacoemulsification device, includes the following steps: S1. Insert the emulsification needle and infusion cannula into the eye, aligning the emulsification needle with the lens nucleus; By pushing the push plate, the barb of the anchor assembly extends, inserting and anchoring the hard core in front of the opening of the emulsifying needle. S2. Start the main unit and drive the emulsification needle to generate high-frequency vibration through the ultrasonic amplitude rod to emulsify and break down the anchored hard core; S3. Equilibrium saline solution is delivered into the eye through the infusion line and the inlet chamber, and emulsified debris is aspirated through the suction line and the return chamber. S4. When the glass body is sucked into the suction line, the high-viscosity glass body cannot pass through the micropores on the spiral disc of the viscosity-type self-locking mechanism. The spiral disc is deformed by the drag force of the fluid, blocking the suction line.

[0017] The beneficial effects of this invention are as follows: 1. The intelligent ophthalmic phacoemulsification device disclosed in this invention effectively solves the technical problem of hard nucleus bouncing during phacoemulsification surgery by setting an anchoring component in the inlet chamber. Two curved barbs can precisely clamp the hard nucleus and anchor it in front of the emulsification needle opening, preventing the nucleus from bouncing randomly in the eye, reducing impact damage to fragile intraocular tissues, and lowering the probability of serious surgical complications such as posterior capsule rupture. 2. The intelligent ophthalmic phacoemulsification device disclosed in this invention uses a piercing rod to transmit the slight vibration of the ultrasonic amplitude rod through a conductive bridge seat. This helps to break up hard lens nuclei, improve emulsification efficiency, reduce ultrasonic energy loss, and lower surgical difficulty. It is adaptable to the surgical needs of lens nuclei with different hardness. The piercing rod is inserted into the through hole of the rubber support pad, allowing for smooth and unimpeded movement. The rounded corners of the curved end further prevent scratching intraocular tissues and ensure surgical safety. Multiple leaf springs between the ultrasonic amplitude rod and the inner wall of the mounting cavity effectively buffer the high-frequency vibration of the ultrasonic amplitude rod, reducing shaking and ensuring that the vibration is accurately transmitted to the emulsification needle, improving the emulsification effect. At the same time, it avoids collision between the ultrasonic amplitude rod and the inner wall of the operating handle, extending the service life of the device. The vibration amplitude can be transmitted to the finger by pushing the plate. However, when the emulsification needle pierces the hard lens nucleus, the low-frequency, high-amplitude "click" mechanical reaction force generated can be transmitted to the doctor's thumb without damage, preserving the crucial penetrating "breakthrough sensation". 3. The intelligent ophthalmic phacoemulsification device disclosed in this invention features a viscosity-based self-locking mechanism within the aspiration tubing. This mechanism employs a purely physical structure design, eliminating the need for electronic sensing and control. Based on fluid dynamics, it achieves instantaneous self-locking and flow interception. The micropores of the hairspring disc precisely identify fluid viscosity, allowing only low-viscosity aqueous humor and emulsified debris to pass through. When high-viscosity vitreous humor is aspirated, it quickly forms a blockage and triggers self-locking. The hairspring disc deforms and adheres to the inner wall of the aspiration tubing, effectively sealing the tubing and preventing further aspiration of vitreous humor that could cause retinal traction damage, thus ensuring patient visual safety. Furthermore, under normal conditions, the tension spring and elastic hairspring maintain the stable position of the hairspring disc, leaving a flow channel gap that does not affect normal aspiration efficiency. It automatically resets after a fault is cleared, requiring no manual intervention, thus improving the continuity and convenience of surgery. The threaded connection between the connecting cylinder and the assembly slot facilitates the disassembly, inspection, and cleaning of the viscosity-based self-locking mechanism, reducing equipment maintenance difficulty and costs.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural diagram of an intelligent ophthalmic phacoemulsification device according to the present invention; Figure 2 This is a schematic diagram of the operating handle structure of an intelligent ophthalmic phacoemulsification device according to the present invention; Figure 3 This is a schematic diagram of the operating handle of an intelligent ophthalmic phacoemulsification device according to the present invention from another perspective. Figure 4 This is a cross-sectional view of the operating handle and emulsification needle of an intelligent ophthalmic phacoemulsification device according to the present invention. Figure 5 This is a schematic diagram of the rubber support pad structure of an intelligent ophthalmic phacoemulsification device according to the present invention; Figure 6 This is a schematic diagram of the ultrasonic amplitude transformer and operating handle structure of an intelligent ophthalmic phacoemulsification device according to the present invention; Figure 7 This is an exploded structural diagram of the viscosity-type self-locking mechanism of an intelligent ophthalmic phacoemulsification device according to the present invention; Figure 8 This is a side view schematic diagram of the viscosity-type self-locking mechanism of an intelligent ophthalmic phacoemulsification device according to the present invention.

[0020] Reference numerals: 1. Main unit body; 2. Foot pedal control device; 3. Operating handle; 301. Mounting cavity; 31. Emulsifying needle; 32. Infusion tubing; 33. Power supply cable; 34. Suction tubing; 35. Ultrasonic amplitude transformer; 36. Infusion sleeve; 37. Limiting baffle; 38. Return chamber; 39. Liquid inlet chamber; 310. Drain port; 311. Rubber support pad; 312. Through hole; 313. Spike; 314. 315. Connecting ring; 316. Leaf spring; 317. Insertion hole; 318. Waist-shaped hole; 319. Connecting rod; 320. Push rod; 321. Limiting groove; 322. Push plate; 323. Mounting hole; 324. Conductive bridge seat; 325. Assembly groove; 4. Viscous self-locking mechanism; 41. Connecting cylinder; 42. Support rod; 43. Elastic hairspring; 44. Hairspring disc; 45. Tension spring; 46. Micro-orifice; 47. Flow channel clearance. Detailed Implementation

[0021] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Example 1

[0025] like Figures 1-8As shown, an intelligent ophthalmic phacoemulsification device includes a main unit 1, a foot pedal control device 2, and an operating handle 3. The foot pedal control device 2 is connected to the main unit 1 via a dedicated cable, and the operating handle 3 is connected to the main unit 1 via a multi-core aviation connector. These three components work together to complete various operations in ophthalmic cataract phacoemulsification surgery. The main unit 1 integrates an ultrasound generation module, a negative pressure control module, and a power supply module, providing ultrasonic energy, suction power, and a stable power supply for the entire device. The internal modules are independent yet coordinated. The ultrasound generation module generates high-frequency electrical signals, the negative pressure control module adjusts the suction negative pressure, and the power supply module provides stable power to all electrical components. The three components work together to ensure stable operation of the device. The main unit 1 has a solution suspension rod on its top for suspending the balanced salt solution bottle. The balanced salt solution is delivered to the operating handle 3 through tubing to provide continuous perfusion for intraocular surgery and maintain the anterior chamber morphology. The back has a folding hook for electrical wires and a foot pedal controller hook for storing various electrical wires and foot pedal control devices 2, respectively, to prevent the wires from becoming tangled and causing wear or accidental activation. It also saves space around the operating table and facilitates operation by medical staff. The sides have heat dissipation windows to dissipate the heat generated by the internal electronic components during operation, preventing damage to the electronic components due to overheating and ensuring long-term stable operation of the equipment. The bottom is equipped with directional casters with brakes and casters without brakes. The directional casters with brakes can be locked when the equipment is fixed to prevent accidental movement during surgery, while the casters without brakes allow medical staff to flexibly adjust the position of the equipment to adapt to different operating table layouts. The foot pedal control device 2 is used to control the start and stop of ultrasonic emulsification, irrigation, aspiration, and other actions, as well as parameter adjustments. Its foot-pedal design caters to the surgeon's need for two-handed instrument operation during surgery. By pressing different pedals, the surgeon can control the corresponding function without manually operating the main unit 1, freeing their hands to focus on the surgical procedure and ensuring precision. The operating handle 3 is designed for the surgeon's hand, adapting to the delicate operation requirements of ophthalmic surgery. Its surface is pressed with a fine anti-slip texture, which increases friction between the hand and the handle, ensuring a firm grip even when hands are wet with sweat or disinfectant, preventing instrument slippage. Furthermore, the handle's size and grip curvature are ergonomically designed to fit the surgeon's hand contour, reducing hand fatigue during prolonged surgery.

[0026] The operating handle 3 is equipped with an ultrasonic amplitude transformer 35, which is made of medical-grade stainless steel and has good rigidity and vibration transmission performance. It can efficiently transmit the mechanical vibration generated by the transducer to the emulsification needle 31. One end of the transducer is fixedly connected to the transducer, which is the core component that converts electrical energy into mechanical energy. It is connected to the power supply module and ultrasonic generation module of the main body 1 through the power supply cable 33. The high-frequency electrical signal generated by the main body 1 is transmitted to the transducer through the power supply cable 33. The transducer converts the electrical signal into high-frequency mechanical vibration, which is then amplified by the ultrasonic amplitude transformer 35 and transmitted to the emulsification needle 31. The high-frequency vibration causes the emulsification needle 31 to vibrate slightly, thereby achieving the emulsification and fragmentation of the lens nucleus. The vibration frequency is matched with the hardness of the lens nucleus, ensuring the emulsification effect while reducing damage to normal tissues inside the eye. The operating handle 3 also contains two independent tubing channels: an infusion channel 32 and an aspiration channel 34. Both channels are made of medical-grade silicone, which has good biocompatibility and flexibility, adapting to the internal space layout of the operating handle 3 and preventing damage due to handle bending. Furthermore, the medical-grade silicone is non-toxic and odorless, and will not react with balanced saline solution or emulsion debris, ensuring surgical safety. The two channels are independent and do not interfere with each other. The infusion channel 32 is used to deliver balanced saline solution, which maintains the anterior chamber pressure, preventing damage to intraocular tissues due to abnormal pressure, and providing a clean operating environment for the intraocular surgical area. The aspiration channel 34 is used to remove emulsified lens debris, aqueous humor, and any spilled vitreous humor, ensuring a clear surgical field and preventing abnormal increases or decreases in intraocular pressure, thus maintaining a stable intraocular environment.

[0027] One end of the ultrasonic amplitude transformer 35 is provided with an internal thread, and the tail of the emulsification needle 31 is provided with an external thread that matches this external thread. The threaded connection method is characterized by convenient disassembly and secure connection. The emulsification needle 31 is fixed to the front end of the ultrasonic amplitude transformer 35 through the threaded connection, which facilitates the replacement of different specifications of emulsification needle 31 according to the hardness of the lens nucleus during the operation, adapting to different surgical scenarios. When changing, the emulsification needle 31 can be disassembled and installed simply by rotating it, without the need for additional tools, saving surgical time. The inner wall of the irrigation cannula 36 is provided with an internal thread, which is threaded onto the end of the operating handle 3 that is provided with an external thread. The threaded connection method ensures that the irrigation cannula 36 and the operating handle 3 are tightly connected and not easy to fall off. The emulsification needle 31 is completely located inside the irrigation cannula 36. The irrigation cannula 36 is made of transparent medical material, which allows the doctor to observe the working status of the emulsification needle 31 and the condition of intraocular tissue during the operation, so as to detect abnormalities in time and deal with them in time, avoiding surgical risks. An annular inlet chamber 39 is formed between the emulsifying needle 31 and the infusion cannula 36. The inlet chamber 39 is connected to the outlet of the infusion line 32. The balanced saline solution is delivered to the inlet chamber 39 through the infusion line 32, and then slowly flows into the eye from the front opening of the infusion cannula 36 to achieve anterior chamber infusion and maintain stable intraocular pressure. The annular structure of the inlet chamber 39 can make the balanced saline solution evenly distributed and avoid local flow rate too fast, which would cause anterior chamber pressure fluctuation. The outer wall of the emulsifying needle 31 is fitted with multiple rubber support pads 311. The rubber support pads 311 are made of medical-grade silicone rubber, which has good elasticity and sealing properties. They can support the subsequent needle rod 313, providing a stable guiding foundation for the movement of the needle rod 313. They can also seal the gap between the emulsifying needle 31 and the infusion cannula 36 to prevent leakage of the balance salt solution and avoid a drop in intraocular pressure due to leakage of the balance salt solution, which would affect the safety of the operation. Multiple through holes 312 are opened on one side of the rubber support pads 311. The position of the through holes 312 matches the movement trajectory of the needle rod 313, providing guidance for the movement of the needle rod 313 and ensuring that the needle rod 313 can move smoothly in a fixed direction.

[0028] The inner wall of the infusion sleeve 36 is integrally formed with a limiting baffle 37. The limiting baffle 37 is U-shaped, with its opening facing the operating handle 3. Its top is set against the outer wall of the emulsifying needle 31. It has two main functions: first, to prevent the emulsifying needle 31 from being damaged by excessively extending into the infusion sleeve 36, and to provide axial limiting for the emulsifying needle 31. At the same time, it provides radial positioning for the emulsifying needle 31, preventing it from shifting during high-frequency vibration and ensuring that the vibration can be accurately transmitted to the tip of the emulsifying needle 31, thereby improving emulsification efficiency; second, to divide the liquid inlet chamber 39 into a return chamber. A reflux chamber 38 is formed between the limiting baffle 37, the end of the operating handle 3, and the inner wall of the irrigation cannula 36. The reflux chamber 38 is connected to one end of the aspiration tube 34 to form a waste liquid reflux channel. The outer wall of the emulsification needle 31 is provided with a drain port 310. The drain port 310 is located on the side wall of the emulsification needle 31 and is connected to the reflux chamber 38. During the operation, the lens debris and excess aqueous humor after emulsification enter the reflux chamber 38 through the drain port 310, and are then sucked into the waste liquid collection device of the main unit 1 through the aspiration tube 34 to realize the timely discharge of waste liquid, maintain a clear surgical field, provide good conditions for the doctor's operation, and avoid the risk of infection caused by the accumulation of waste liquid in the eye.

[0029] An anchoring assembly is installed within the inlet chamber 39 to anchor the sclerotic nucleus during surgery, preventing it from bouncing around within the eye and affecting surgical efficiency and safety. It also reduces damage to intraocular tissues caused by the nucleus. Nucleus bouncing is a common risk factor in phacoemulsification cataract surgery, easily leading to complications such as posterior capsule rupture. The anchoring assembly effectively addresses this issue. The anchoring assembly consists of two lances 313, movably positioned within the inlet chamber 39. The lances 313 are made of medical-grade titanium alloy, possessing excellent strength and biocompatibility, and will not irritate intraocular tissues, meeting the biocompatibility requirements of ophthalmic surgical instruments. The ends of the two lances 313 near the emulsification needle 31 are curved, allowing them to penetrate and stably clamp both sides of the sclerotic nucleus, preventing it from dislodging during clamping. The curved ends are rounded to prevent sharp edges from scratching intraocular tissues, protecting the delicate intraocular tissues. Each spike 313 is inserted into multiple through holes 312 in the same row. The through holes 312 guide and limit the spike 313, ensuring that the spike 313 can move smoothly along the radial direction of the emulsifying needle 31. The spike 313 and the through holes 312 are in transition fit, with the fit clearance controlled at 0.01-0.03mm. This ensures that the spike 313 can move smoothly and avoids shaking, ensuring the positioning accuracy of the anchor spike assembly, enabling the clamping and releasing of the hard core without jamming or displacement, and ensuring smooth operation.

[0030] One end of the operating handle 3 has a mounting hole 322, which is axially oriented along the operating handle 3, providing space for the installation and movement of the push rod 319. The push rod 319 is slidably installed in the mounting hole 322. The push rod 319 is made of medical-grade stainless steel, which has good rigidity and wear resistance and can withstand repeated pushing and pulling forces. It has a clearance fit with the mounting hole 322, and the size of the clearance is precisely designed to ensure that the push rod 319 can slide smoothly in the mounting hole 322 without jamming, while avoiding excessive clearance that could lead to leakage and prevent balanced saline or waste fluid from leaking out of the gap, affecting the surgical environment. The inner wall of the mounting hole 322 has a guide groove along the axial direction, and the outer wall of the push rod 319 has a guide protrusion that matches the guide groove. The guide protrusion slides with the guide groove to provide auxiliary guidance for the movement of the push rod 319, preventing the push rod 319 from deviating or jamming, and ensuring the precise movement of the spike rod 313. The outer wall of the operating handle 3 has an oblong hole 317. The oblong hole 317 extends along the axial direction of the operating handle 3 and communicates with the mounting hole 322. The length of the oblong hole 317 is adapted to the moving stroke of the push rod 319, providing space for the movement of the connecting rod 318. The connecting rod 318 is installed in the oblong hole 317. The bottom end of the connecting rod 318 is fixedly connected to one end of the push rod 319 by laser spot welding. Laser spot welding has the characteristics of strong connection, small welding point and no impact on component performance. It can ensure that the connecting rod 318 and the push rod 319 are firmly connected, not easy to fall off, and can withstand repeated pushing and pulling forces. The other end of the push rod 319 is fixed with a connecting ring 314 by welding. The connecting ring 314 is sleeved on the outer wall of the emulsifying needle 31, with a small gap between it and the emulsifying needle 31 to avoid affecting the vibration and disassembly of the emulsifying needle 31, and to ensure that the emulsifying needle 31 can transmit high-frequency vibration normally. One end of each of the two spikes 313 is welded and fixed to the connecting ring 314. When the push rod 319 slides in the mounting hole 322, it will drive the connecting ring 314 to move synchronously, and then drive the two spikes 313 to move along the through hole 312 to achieve clamping and releasing of the hard core. The entire transmission process is smooth and without jamming, ensuring that the doctor can accurately control the movement of the anchor piercing assembly.

[0031] The outer wall of the operating handle 3 is provided with a limiting groove 320 coaxial with the waist-shaped hole 317. The limiting groove 320 extends along the axial direction of the operating handle 3. A push plate 321 is slidably installed in the limiting groove 320. The push plate 321 is fixed to the top of the connecting rod 318 by screws. The screw connection method facilitates disassembly and maintenance. The top of the push plate 321 is provided with anti-slip texture. The anti-slip texture can increase the friction between the doctor's fingers and the push plate 321, making it convenient for the doctor to move the connecting rod 318 and the push rod 319 by pushing the push plate 321 during the operation, thereby adjusting the position of the spike rod 313. Even if the doctor is wearing gloves, he can operate accurately and avoid slipping and operation errors. The limiting groove 320 limits the push plate 321 to prevent it from shifting during movement, ensuring the stability and accuracy of the operation and avoiding damage to intraocular tissues due to improper positioning of the spike rod 313 caused by operational deviation. At the same time, the limiting groove 320 can limit the travel of the push plate 321 to prevent the push rod 319 from moving excessively and causing damage to the component.

[0032] A viscosity-based self-locking mechanism 4 is installed within the aspiration tubing 34 to prevent retinal traction damage caused by vitreous humor being drawn into the aspiration tubing 34 in the event of posterior capsule rupture, thus ensuring surgical safety. The viscosity-based self-locking mechanism 4 is based on fluid dynamics and does not rely on electronic control, enabling instantaneous self-locking. The viscosity-based self-locking mechanism 4 includes a hairspring disc 44, which is made of medical-grade stainless steel using a one-piece molding process. It deforms according to the fluid concentration. Multiple micropores 46 are located on one side of the hairspring disc 44. The design of the micropores 46 enables viscosity recognition, allowing only low-viscosity aqueous humor and emulsified lens debris to pass through. When high-viscosity vitreous humor is drawn into the aspiration tubing 34, it cannot pass through the micropores 46 and forms a blockage on one side of the hairspring disc 44, triggering the subsequent self-locking action to prevent further aspiration of the vitreous humor.

[0033] The viscosity-type self-locking mechanism 4 also includes multiple elastic hairsprings 43, which are evenly arranged on the inner wall of the suction pipe 34. The elastic hairsprings 43 have good elasticity and support performance, and can support and reset the hairspring disc 44, ensuring that the hairspring disc 44 maintains a stable position under normal conditions and does not affect normal suction operation. The other end of the multiple elastic hairsprings 43 is fixedly connected to the outer edge of the hairspring disc 44. The connection method is firm and can withstand the tension generated when the hairspring disc 44 moves. A support rod 42 is installed inside the suction tube 34. The support rod 42 is made of medical-grade stainless steel and is set parallel to the hairspring disc 44. It serves to fix and support the tension spring 45. A tension spring 45 is installed between the support rod 42 and the hairspring disc 44. The tension spring 45 is a medical-grade miniature tension spring. Under normal conditions, the tension spring 45 is in a slightly pre-stretched state, which tightens the hairspring disc 44 and ensures that there is a flow channel gap 47 between the hairspring disc 44 and the inner wall of the suction tube 34, allowing low-viscosity fluid to pass through smoothly without affecting the normal suction efficiency. When a high-viscosity fluid acts on the hairspring disc 44, the tension spring 45 can be stretched, driving the hairspring disc 44 to move and achieve flow interception.

[0034] Example 2

[0035] Reference Figures 1-8This invention provides a novel technical solution: an intelligent ophthalmic phacoemulsification device, comprising a mounting cavity 301 located inside an operating handle 3. The mounting cavity 301 is cylindrical and situated in the center of the operating handle 3, providing space for the installation of an ultrasonic amplitude transformer 35. The diameter of the mounting cavity 301 is larger than the diameter of the ultrasonic amplitude transformer 35, ensuring that the ultrasonic amplitude transformer 35 can vibrate normally within the mounting cavity 301 without colliding with the inner wall of the mounting cavity 301. The ultrasonic amplitude transformer 35 is installed within the mounting cavity 301. Multiple leaf springs 315 are fixedly installed between the ultrasonic amplitude transformer 35 and the inner wall of the mounting cavity 301. The leaf springs 315 are evenly distributed circumferentially along the ultrasonic amplitude transformer 35. The leaf springs 315 are made of medical-grade spring steel, possessing good elasticity and fatigue resistance, and can buffer and fix the ultrasonic amplitude transformer 35, reducing its swaying during high-frequency vibration, ensuring the stability of vibration transmission, and preventing collision between the ultrasonic amplitude transformer 35 and the inner wall of the operating handle 3, thus extending the device's service life. The bottom wall of the waist-shaped hole 317 is provided with an insertion hole 316, which is connected to the mounting cavity 301, serving to connect the waist-shaped hole 317 and the mounting cavity 301. A conductive bridge seat 323 is installed in the insertion hole 316. The conductive bridge seat 323 is made of medical-grade stainless steel, which has good rigidity and vibration transmission performance. The top of the conductive bridge seat 323 abuts against the end of the push rod 319, and the bottom of the conductive bridge seat 323 is welded and fixed to the ultrasonic amplitude transformer 35. When the ultrasonic amplitude transformer 35 vibrates, the vibration is transmitted to the push rod 319 through the conductive bridge seat 323, and then to the connecting ring 314 and the spike rod 313. This allows the spike rod 313 to generate slight vibration when clamping the hard core, which helps to break the hard core, improves emulsification efficiency, and reduces the loss of ultrasonic energy. At the same time, this vibration transmission method does not affect the doctor's operating feel and ensures the accuracy of the surgical operation.

[0036] One end of the suction tube 34 has an assembly groove 324. The inner wall of the assembly groove 324 has an internal thread, and the outer wall of the connecting cylinder 41 has an external thread that matches the internal thread. The connecting cylinder 41 is installed in the assembly groove 324 via a threaded connection, and a medical sealing gasket is fitted at the threaded connection to seal the thread gap, prevent lens debris from entering the gap and causing the thread to jam, and enhance the sealing of the connection to avoid negative pressure leakage during suction. This connection method is easy to disassemble and maintain. When the viscosity-type self-locking mechanism 4 malfunctions or needs cleaning, it can be... The connecting cylinder 41 is unscrewed from the assembly slot 324 for inspection and cleaning without disassembling the entire operating handle 3, reducing maintenance difficulty. The support rod 42 and multiple elastic hairsprings 43 are fixed inside the connecting cylinder 41 by laser spot welding, ensuring a firm connection that is not easy to fall off and can withstand the drag force of fluid and the tension of springs. A flow channel gap 47 is formed between the hairspring disc 44 and the connecting cylinder 41. The flow channel gap 47 ensures that low viscosity fluid can pass through smoothly without affecting the displacement of the hairspring disc 44, ensuring that the viscosity-type self-locking mechanism 4 can work normally.

[0037] The operating handle 3 also has a reflux chamber 38 and an inlet chamber 39, which are independent of each other and do not interfere with each other. The reflux chamber 38 is used to collect emulsified waste liquid and debris, while the inlet chamber 39 is used to deliver balanced saline solution to ensure stable anterior chamber pressure in the eye. One end of the operating handle 3 has a mounting hole 322, which is not connected to either the inlet chamber 39 or the reflux chamber 38 to avoid mutual interference. The push rod 319 in the mounting hole 322 drives the spike rod 313 to move through the connecting ring 314 to clamp the hard core. The entire operation does not affect the normal perfusion and aspiration.

[0038] The complete working process of this embodiment is as follows: First, the emulsifying needle 31 is fixed to the front end of the ultrasonic amplitude transformer 35 via a threaded connection, ensuring a secure and loose connection. Then, the infusion sleeve 36 is threaded onto one end of the operating handle 3, ensuring the emulsifying needle 31 is completely inside the infusion sleeve 36, with the limiting baffle 37 conforming to the outer wall of the emulsifying needle 31 for precise positioning. The connecting cylinder 41 is then threaded into the assembly groove 324 of the suction line 34, completing the assembly of the viscosity-type self-locking mechanism 4. A flow channel gap 47 is maintained between the spiral spring 44 and the connecting cylinder 41 to ensure normal suction is not affected. The operating handle 3 is connected to the main unit 1 via a multi-core aviation connector, and the foot pedal control device 2 is connected to the main unit 1 via a dedicated cable. The reliability of each component's connection is checked to ensure there is no looseness or leakage. The balanced salt solution bottle is suspended on the solution suspension rod at the top of the main unit 1. The balanced salt solution bottle is connected to the infusion line 32 of the operating handle 3 through a tubing to remove air bubbles from the tubing and prevent them from entering the eye and affecting surgical safety. Finally, the various functions of the main unit 1 are tested to ensure that the ultrasound generation module, negative pressure control module, and power supply module are all working properly, and that the viscosity-type self-locking mechanism 4 is in a normal standby state.

[0039] The doctor holds the operating handle 3 and slowly inserts the emulsification needle 31 and the tip of the irrigation cannula 36 into the patient's eye. The angle of the operating handle 3 is adjusted so that the emulsification needle 31 is aligned with the lens nucleus. By pressing the corresponding pedal of the foot pedal control device 2, the ultrasonic emulsification, irrigation, and aspiration functions of the main unit 1 are activated. The ultrasound generation module of the main unit 1 generates a high-frequency electrical signal, which is transmitted to the transducer via the power cable 33. The transducer converts the electrical signal into high-frequency mechanical vibration, which is amplified by the ultrasonic amplitude transformer 35 and transmitted to the emulsification needle 31. The emulsification needle 31 generates high-frequency vibration, emulsifying and breaking down the lens nucleus. Simultaneously, balanced salt solution is delivered to the inlet chamber 39 through the irrigation tubing 32, and then slowly flows into the eye from the opening at the tip of the irrigation cannula 36, ​​maintaining stable anterior chamber pressure and providing a favorable operating environment for the surgery. Emulsified lens debris and excess aqueous humor enter the reflux chamber 38 through the drainage port 310 on the outer wall of the emulsification needle 31, and are then sucked into the waste fluid collection device of the main unit 1 through the suction tube 34, so as to achieve timely discharge of waste fluid and maintain a clear surgical field.

[0040] When encountering a hard lens nucleus that bounces, the doctor pushes the push plate 321 on the outer wall of the operating handle 3 with their finger. The push plate 321 causes the connecting rod 318 to slide within the waist-shaped hole 317. The connecting rod 318 then causes the push rod 319 to slide within the mounting hole 322. The push rod 319 moves the connecting ring 314, which in turn moves the two barbs 313 along the through hole 312 of the rubber support pad 311 toward the head of the emulsification needle 31. The two curved barbs 313 extend and clamp the hard nucleus, anchoring it in front of the opening of the emulsification needle 31, preventing the hard nucleus from bouncing inside the eye. At the same time, the vibration of the ultrasonic amplitude rod 35 is transmitted through the insertion hole 316 to the push rod 319, and then to the connecting ring 314 and the barbs 313. This allows the barbs 313 to generate slight vibrations when clamping the hard nucleus, assisting in breaking up the hard nucleus, improving emulsification efficiency, reducing ultrasonic energy loss, and lowering the difficulty of the surgery.

[0041] When the posterior capsule ruptures during surgery and vitreous humor is drawn into the aspiration tube 34, the highly viscous vitreous humor cannot pass through the micropores 46 of the hairspring disc 44, forming a blockage on one side of the hairspring disc 44. The continuous negative pressure of the main unit 1 generates a significant fluid drag force on the hairspring disc 44. This drag force overcomes the tension of the tension spring 45 and the supporting force of the elastic hairspring 43, causing the hairspring disc 44 to deform and move towards the support rod 42 until the vitreous humor is completely blocked, preventing further aspiration and retinal traction damage, thus ensuring the patient's visual safety. At this point, the surgeon can pause the surgery to address the posterior capsule rupture. Once the problem is resolved, the negative pressure disappears, the restoring force of the tension spring 45 returns the hairspring disc 44 to its initial position, the flow channel gap 47 is restored, and the aspiration tube 34 is reopened, allowing the surgical procedure to continue.

[0042] After the surgery, the doctor presses the corresponding pedal of the foot pedal control device 2 to turn off the ultrasonic emulsification, irrigation, and aspiration functions of the main unit 1, and removes the operating handle 3 from the patient's eye. The emulsification needle 31 and irrigation cannula 36 are disassembled and placed in a medical waste collection container for centralized disposal. The connecting cylinder 41 is disassembled, and the viscosity-type self-locking mechanism 4 is inspected and cleaned to remove any remaining debris, ensuring it will function properly for the next use. The operating handle 3 is subjected to high-temperature and high-pressure sterilization to kill surface bacteria and viruses for future use. The power to the main unit 1 is turned off, the foot pedal control device 2 is hung on the foot pedal controller hook on the back of the main unit 1, all wires are organized and wound around the wire folding hook, the brake on the braked directional wheel is released, and the main unit 1 is pushed back to its storage position, completing the storage and organization of the surgical equipment.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the main unit 1, the foot pedal control device 2, and the operating handle 3 are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An intelligent ophthalmic phacoemulsification device, characterized in that, include: Main unit (1); An operating handle (3) is provided with an ultrasonic amplitude transformer (35), an infusion line (32) and an aspiration line (34). One end of the operating handle (3) is detachably connected to an emulsifying needle (31) and an infusion sleeve (36). The emulsifying needle (31) is connected to the ultrasonic amplitude transformer (35) and is located inside the infusion sleeve (36). An inlet chamber (39) is formed between the emulsifying needle (31) and the infusion sleeve (36). The inlet chamber (39) is connected to the infusion line (32). An anchoring assembly, disposed within the liquid inlet chamber (39), is used to anchor the hard core in front of the opening of the emulsifying needle (31); In addition, a viscosity-type self-locking mechanism (4) is disposed in the suction pipe (34). The viscosity-type self-locking mechanism (4) includes a hairspring disc (44) with a plurality of micro-holes (46) on the hairspring disc (44). The hairspring disc (44) is configured to deform to block the suction pipe (34) when the high viscosity fluid cannot pass through the micro-holes (46).

2. The intelligent ophthalmic phacoemulsification device according to claim 1, characterized in that, The anchoring assembly includes two barbs (313) movably disposed within the liquid inlet chamber (39), with one end of the two barbs (313) bent toward the head of the emulsifying needle (31) for inserting into and anchoring the hard core; The outer wall of the emulsifying needle (31) is fitted with a plurality of rubber support pads (311), and a plurality of through holes (312) are provided on the rubber support pads (311). The needle rod (313) is slidably inserted into the through holes (312).

3. The intelligent ophthalmic phacoemulsification device according to claim 2, characterized in that, The operating handle (3) has a mounting hole (322) at one end, and a push rod (319) is slidably provided in the mounting hole (322). A connecting ring (314) is fixedly connected to one end of the push rod (319), and one end of each of the two spikes (313) is fixedly connected to the connecting ring (314). The outer wall of the operating handle (3) is provided with a waist-shaped hole (317) that communicates with the mounting hole (322). A connecting rod (318) is provided in the waist-shaped hole (317). The bottom end of the connecting rod (318) is fixedly connected to the other end of the push rod (319).

4. The intelligent ophthalmic phacoemulsification device according to claim 3, characterized in that, The outer wall of the operating handle (3) is provided with a limiting groove (320) coaxial with the waist-shaped hole (317). A pushing plate (321) is slidably provided in the limiting groove (320). The pushing plate (321) is fixedly connected to the top of the connecting rod (318). The top of the pushing plate (321) is provided with anti-slip texture.

5. The intelligent ophthalmic phacoemulsification device according to claim 3, characterized in that, The operating handle (3) has an installation cavity (301) inside, the ultrasonic amplitude rod (35) is located in the installation cavity (301), and multiple leaf springs (315) are provided between the ultrasonic amplitude rod (35) and the inner wall of the installation cavity (301). The bottom wall of the waist-shaped hole (317) is provided with an insertion hole (316) that communicates with the mounting cavity (301). The insertion hole (316) is provided with a conductive bridge seat (323). The top end of the conductive bridge seat (323) abuts against the push rod (319), and the bottom end of the conductive bridge seat (323) is fixedly connected to the ultrasonic amplitude rod (35).

6. The intelligent ophthalmic phacoemulsification device according to claim 1, characterized in that, The inner wall of the infusion sleeve (36) is provided with a limiting baffle (37). A reflux chamber (38) is formed between the limiting baffle (37), the end of the operating handle (3), and the inner wall of the infusion sleeve (36). The reflux chamber (38) is connected to the suction pipeline (34). The outer wall of the emulsifying needle (31) is provided with a drain port (310), which is connected to the reflux chamber (38).

7. The intelligent ophthalmic phacoemulsification device according to claim 1, characterized in that, The viscosity-type self-locking mechanism (4) also includes multiple elastic hairsprings (43) and tension springs (45). One end of each of the multiple elastic hairsprings (43) is connected to the inner wall of the suction pipe (34), and the other end is connected to the outer edge of the hairspring disc (44). The suction pipe (34) is also provided with a support rod (42), and the tension spring (45) is connected between the support rod (42) and the hairspring disc (44).

8. The intelligent ophthalmic phacoemulsification device according to claim 7, characterized in that, One end of the suction pipe (34) is provided with an assembly groove (324), and a connecting cylinder (41) is threaded into the assembly groove (324). The support rod (42) and multiple elastic hairsprings (43) are fixed inside the connecting cylinder (41), and a flow channel gap (47) is formed between the hairspring disc (44) and the connecting cylinder (41).

9. The intelligent ophthalmic phacoemulsification device according to claim 1, characterized in that, It also includes a foot pedal control device (2), which is connected to the main body (1).

10. A method of using an intelligent ophthalmic phacoemulsification device, applied to the intelligent ophthalmic phacoemulsification device as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. Insert the emulsification needle (31) and the infusion cannula (36) into the eye, and align the emulsification needle (31) with the lens nucleus; By pushing the push plate (321), the barb (313) of the anchor barb assembly extends, inserting and anchoring the hard core in front of the opening of the emulsifying needle (31); S2. Start the main unit (1), drive the emulsification needle (31) to generate high-frequency vibration through the ultrasonic amplitude rod (35) to emulsify and break up the anchored hard core; S3. Equilibrium saline solution is delivered into the eye through the infusion line (32) and the inlet chamber (39), and emulsified debris is aspirated through the suction line (34) and the return chamber (38). S4. When the glass body is sucked into the suction line (34), the high viscosity glass body cannot pass through the micropores (46) on the hairspring disc (44) of the viscosity self-locking mechanism (4). The hairspring disc (44) is deformed by the drag force of the fluid and blocks the suction line (34).

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