Ophthalmic microscope lens wiping pen
By designing a microscope lens cleaning pen that integrates spraying and wiping functions, the problem of existing tools being unable to clean in real time has been solved, achieving efficient and safe lens cleaning, adapting to diverse needs, protecting lens coatings, and reducing surgical risks.
Patent Information
- Application Number
- CN202520157887.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing microscope lens cleaning tools cannot achieve real-time cleaning, prolonging operation time, damaging lens coating, are not compatible with different types of lenses, pose a risk of infection, have low cleaning efficiency, and are not suitable for high-precision ophthalmic surgery.
An ophthalmic microscope lens wiping pen was designed, integrating spraying and wiping functions. It adopts modular cleaning accessories, including an ultra-fine nylon fiber brush and a sponge brush, to adapt to different types of contamination, avoid coating damage, and ensure aseptic operation.
It enables rapid and efficient cleaning of microscope tips during surgery, reducing surgical interruptions, protecting lens coatings, adapting to diverse needs, reducing infection risks, and improving cleaning efficiency and equipment reliability.
Smart Images

Figure CN223932170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ophthalmic microscope head cleaners, and more particularly to an ophthalmic microscope head wiping pen. Background Technology
[0002] With the continuous advancement of modern ophthalmic surgical techniques, microscopes have become an indispensable tool in ophthalmic surgery. However, the problem of aerosol contamination of the microscope head during surgery is receiving increasing attention, and how to efficiently clean the microscope head has become a key focus of current technological development.
[0003] In cataract surgery, phacoemulsification is widely used for lens removal. The phacoemulsification handpiece emulsifies the lens into tiny particles through high-frequency vibrations and then aspirates them. However, this process generates a large amount of aerosols. Similarly, vitrectomy, a common procedure for treating retinal diseases, has seen significant improvements in surgical efficiency and treatment outcomes due to its increased vitrectomy rate. However, the vitrectomy tip typically operates at extremely high cutting frequencies (thousands to tens of thousands of cuts per minute), which also generates a large number of tiny aerosol particles. These aerosols may contain not only surgical fluids but also tissue fragments or blood components from the patient, adhering to the microscope tip and forming stains. If not cleaned promptly, these stains can blur the microscope image, affecting the precision of the surgical procedure and even increasing the risk of postoperative complications.
[0004] To address the aforementioned aerosol contamination issue, current clinical practices primarily involve manual wiping and applying anti-contamination coatings to the lens surface for microscope lens cleaning. However, these methods have the following limitations:
[0005] I. Most existing microscope tip cleaning methods require interruptions during surgery, such as manual wiping or lens replacement. This not only interrupts the surgical process and prolongs the operation time, but also increases the uncertainty of the surgical procedure. In high-risk surgeries such as phacoemulsification cataract surgery and vitrectomy, aerosols contaminating the microscope tip are continuously generated. Traditional cleaning tools cannot achieve real-time cleaning during the operation, leading to the accumulation of contaminants on the microscope tip, which may affect the surgical field of view.
[0006] Second, current microscope lens cleaning tools are mostly simple manual wiping tools, which have low cleaning efficiency and require the operator to pause surgery for tedious operations. For example, some wiping tools require the microscope to be removed from the surgical field of view before cleaning can be performed. This operation requires a high degree of precision in terms of time and surgical equipment, and carries the potential risk of operational errors. In addition, the wiping effect of some manual tools is not ideal, and they cannot completely remove stains attached to aerosols, which can easily lead to residual dirt further affecting the lens clarity.
[0007] Third, modern microscope lenses typically have special anti-reflective, anti-fogging, or anti-contamination coatings. While these coatings improve image quality, they also place higher demands on cleaning tools. However, existing wiping tools may wear down the coating during cleaning, especially with repeated wiping or the use of abrasive cleaning materials. This damage can exacerbate lens contamination and reduce the microscope's lifespan. This problem not only increases surgical costs but may also force more unnecessary interruptions to the surgical procedure.
[0008] IV. Ophthalmic surgery demands an extremely sterile environment; however, many microscope lens cleaning tools are not adequately designed to address this. For example, some tools may introduce new sources of contamination (such as fibers and particles) during cleaning, exacerbating lens contamination. Furthermore, the sterilization and reuse of the cleaning tools themselves present significant challenges. Existing cleaning tools or similar equipment often fail to adequately address infection control issues during single-use and reuse, limiting their applicability in actual surgical procedures.
[0009] Fifth, the variety of microscope tip cleaning tools currently available on the market is limited, and they lack adaptability to different types of microscope tips. For example, the size, shape, and coating characteristics of lenses from different surgical equipment and microscope brands vary, and existing tools often cannot provide complete compatibility. Especially in complex multidisciplinary surgical environments, existing cleaning tools struggle to meet diverse needs, further limiting their application scope. Utility Model Content
[0010] In view of the above-mentioned problems in the prior art, an ophthalmic microscope lens wiping pen is provided to overcome at least one of the above-mentioned technical defects.
[0011] The specific technical solution is as follows:
[0012] An ophthalmic microscope lens cleaning pen, comprising:
[0013] The cylinder has an internal cavity for holding detergent, with the lower end of the cavity closed and the upper end open. The lower end face of the cylinder has a recessed groove.
[0014] The nozzle assembly is detachably mounted on the upper end of the cylinder to spray the cleaning agent inside the receiving chamber outwards;
[0015] The cleaning accessory includes a connecting part and a cleaning part, with the upper end of the cleaning part being detachably inserted into a slot. The cleaning part is used to clean the lens surface of an ophthalmic microscope lens.
[0016] Preferably, at least one limiting groove is longitudinally formed on the inner wall of the insertion groove, and the outer wall of the connecting part has limiting ribs of the same number and position as the limiting groove.
[0017] Preferably, a first magnetic block is also embedded on the bottom surface of the insertion slot, and a second magnetic block is embedded on the upper surface of the connecting part, and the polarities of the first magnetic block and the second magnetic block are opposite.
[0018] Preferably, the cleaning part is one of the following: a microfiber brush, a sponge disc brush, or a sponge pointed brush.
[0019] Preferably, the nozzle assembly includes an end cap that covers the upper end of the cylinder, a nozzle that is longitudinally movable and mounted on the end cap, the lower end face of the end cap having a downwardly extending and hollow extension portion forming an upwardly open extrusion chamber in the extension portion, the lower end of the nozzle extending at least partially into the extrusion chamber, and a spring being mounted in the extrusion chamber, the upper and lower ends of the spring abutting against the lower end face of the nozzle and the bottom surface of the extrusion chamber, respectively.
[0020] Preferably, the nozzle has an internal liquid outlet channel, with the inlet of the liquid outlet channel located on the bottom surface of the nozzle and the outlet of the liquid outlet channel located on the outer side wall of the nozzle.
[0021] Preferably, the lower end face of the extension is provided with a liquid inlet hole, and the lower end face of the extension further extends downward around the liquid inlet hole to form a liquid inlet pipe.
[0022] Preferably, a steel ball is movably disposed in the liquid inlet hole within the extrusion chamber, and at least part of the lower end of the spring abuts against the steel ball, causing the steel ball to have a first position state of closing the liquid inlet hole and a second position state of opening the liquid inlet hole, and the steel ball, spring, and liquid inlet hole together constitute a one-way valve structure.
[0023] Preferably, an annular groove is formed on the outer wall of the nozzle, and an annular flange is formed on the inner wall of the extrusion chamber, with the inner edge of the annular flange extending into the annular groove, so that the nozzle can move longitudinally and prevent the nozzle from coming off upward.
[0024] Preferably, the upper edge of the end cap is raised in an upward ring and surrounds the nozzle.
[0025] The beneficial effects of the above technical solution are as follows:
[0026] The ophthalmic microscope lens cleaning pen includes a barrel, a nozzle assembly, and cleaning accessories. The barrel has a receiving cavity and a connecting groove. The nozzle assembly sprays the cleaning agent from the receiving cavity outwards. The cleaning accessories include a connector that inserts into the connecting groove and a cleaning part for cleaning the lens surface of the ophthalmic microscope lens. The cleaning accessories can be replaced as needed, integrating cleaning agent spraying and multi-functional wiping. It can quickly spray an appropriate amount of cleaning agent onto the microscope lens surface to dissolve stubborn liquid or oil contaminants. The cleaning part can be flexibly selected according to the type of contamination to complete efficient cleaning. It can achieve a combination of spraying and wiping without additional tools, simplifying the cleaning process and greatly improving the convenience and efficiency of microscope lens cleaning during surgery. It is highly adaptable, allowing different cleaning accessories to be replaced as needed. It can quickly and safely wipe the microscope lens during surgery, avoiding surgical interruption. The cleaning process does not damage the special coating on the microscope lens surface. The design is lightweight and the structure is novel, making it easy for medical staff to operate quickly and reducing surgical risks. Attached Figure Description
[0027] Figure 1 This is a perspective view of the ophthalmic microscope lens wiping pen of this utility model.
[0028] Figure 2 This is a perspective view of the ophthalmic microscope lens cleaning pen of this utility model.
[0029] Figure 3 This is an exploded view of the ophthalmic microscope lens cleaning pen of this utility model.
[0030] Figure 4 This is a cross-sectional view of the ophthalmic microscope lens wiping pen of this utility model. Detailed Implementation
[0031] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. And the following definitions are provided: Figure 4 The up-down direction shown on the paper is the up-down direction in this embodiment.
[0032] See Figures 1 to 4 As shown in the illustration, the ophthalmic microscope tip wiping pen provided in this embodiment includes:
[0033] The cylinder 1 has an internal cavity 11 for holding cleaning agent, and is closed at the lower end and open at the upper end. The lower end face of the cylinder 1 is recessed to form a insertion groove 12.
[0034] The nozzle assembly 3 is detachably mounted on the upper end of the cylinder 1 to spray the cleaning agent in the receiving cavity 11 outward;
[0035] The cleaning accessory 2 includes a connecting part 21 and a cleaning part 22, and the upper end of the cleaning part 22 is detachably inserted into the insertion slot 12. The cleaning part 22 is used to clean the lens surface of the ophthalmic microscope lens.
[0036] Based on the above technical solution, the ophthalmic microscope lens cleaning pen includes a cylinder 1, a nozzle assembly 3, and a cleaning attachment 2. The cylinder 1 has a receiving cavity 11 and a insertion groove 12. The nozzle assembly 3 is used to spray the cleaning agent in the receiving cavity 11 outward. The cleaning attachment 2 includes a connecting part 21 inserted into the insertion groove 12 and a cleaning part 22 for cleaning the surface of the ophthalmic microscope lens. The cleaning attachment 2 can be replaced as needed, integrating cleaning agent spraying and multi-functional wiping. It can quickly spray an appropriate amount of cleaning agent onto the surface of the microscope lens to dissolve stubborn liquid or oil contaminants. The cleaning part 22 can be flexibly selected according to the type of contamination to complete efficient cleaning. It can achieve the combination of spraying and wiping without additional tools, simplifying the cleaning steps and greatly improving the convenience and efficiency of microscope lens cleaning during surgery. It has strong adaptability and can replace different cleaning attachments as needed. It can quickly and safely wipe the microscope lens during surgery to avoid interruption of surgery. It does not damage the special coating on the surface of the microscope lens during cleaning. It is lightweight, has a novel structure, and is easy for medical staff to operate quickly, reducing surgical risks.
[0037] In a preferred embodiment, at least one limiting groove 14 is longitudinally formed on the inner wall of the insertion groove 12, and the outer wall of the connecting part 21 has a number of limiting ribs 27 that are opposite to the limiting grooves 14, which serve to guide the connecting part 21 into the insertion groove 12 and limit circumferential rotation. Furthermore, a first magnetic block 13 is embedded on the bottom surface of the insertion groove 12, and a second magnetic block 23 is embedded on the upper end surface of the connecting part 21. The first magnetic block 13 and the second magnetic block 23 have opposite polarities to prevent them from coming loose during use. In practical applications, the tight fit between the outer wall of the connecting part 21 and the inner wall of the insertion groove 12 also achieves the purpose of preventing dislodgement. Furthermore, the cleaning part 22 is one of an ultra-fine nylon fiber brush, a sponge disc brush, or a sponge pointed brush.
[0038] In practical applications, the appropriate brush head can be selected according to the type of contaminant. For example, for fine dust contaminants, a soft nylon fiber brush can be used for gentle brushing; for liquids or stubborn stains, a cleaning agent is first sprayed onto the microscope head using a cleaning agent spray nozzle, and then a sponge disc brush is pressed onto the lens and wiped from the inside out in a rotating motion; for grooves or small areas, a sponge tip brush is used for fine cleaning. This modular design ensures the comprehensiveness and targeted nature of microscope head cleaning, meeting the diverse needs of different surgical scenarios. In this embodiment, the brush heads are all made of soft, low-friction materials, including ultra-fine nylon fibers and high-density sponge, which can effectively protect the anti-reflective, anti-fogging, and anti-contamination coatings on the microscope head surface during cleaning, avoiding wear and damage that may be caused by traditional cleaning tools. Through the precisely designed brush head structure and operating method, this wiping pen can achieve efficient cleaning while extending the service life of the microscope equipment, further improving the reliability and economic value of the equipment, making it very suitable for high-precision ophthalmic surgical environments.
[0039] In a preferred embodiment, combined with Figure 3 and Figure 4As shown, the nozzle assembly 3 includes an end cap 31 that covers the upper end of the cylinder 1, and a nozzle 32 that is longitudinally movable and mounted on the end cap 31. The lower end face of the end cap 31 has a downwardly extending and hollow extension 33, in which an upwardly open extrusion chamber 30 is formed. At least part of the lower end of the nozzle 32 extends into the extrusion chamber 30, and a spring 35 is mounted inside the extrusion chamber 30. The upper and lower ends of the spring 35 abut against the lower end face of the nozzle 32 and the inner bottom surface of the extrusion chamber 30, respectively. Furthermore, the nozzle 32 has a liquid outlet channel 39 inside. The liquid inlet 37 of the liquid outlet channel 39 is located on the bottom surface of the nozzle 32, and the spray outlet 38 of the liquid outlet channel 39 is located on the outer side wall of the nozzle 32. Furthermore, the lower end face of the extension 33 has a liquid inlet hole, and the lower end face of the extension 33 further extends downward around the liquid inlet hole to form a liquid inlet pipe 34. Furthermore, a steel ball 36 is movably disposed within the liquid inlet orifice of the extrusion chamber 30, and at least part of the lower end of the spring 35 abuts against the steel ball 36, causing the steel ball 36 to have a first position state of closing the liquid inlet orifice and a second position state of opening the liquid inlet orifice. The steel ball 36, the spring 35, and the liquid inlet orifice together constitute a one-way valve structure. Furthermore, an annular groove is formed concavely on the outer wall of the nozzle 32, and an annular flange is formed on the inner wall of the extrusion chamber 30, with the inner edge of the annular flange extending into the annular groove, allowing the nozzle 32 to move longitudinally and preventing it from detaching upwards. In practical applications, the lower outer edge of the nozzle 32 can be designed as a spiral outer wall, allowing the nozzle 32 to screw into the extrusion chamber 30 and adapt the annular groove to the annular flange. In the longitudinal direction, the longitudinal length of the annular flange is less than the longitudinal length of the annular groove to ensure that the nozzle 32 can move up and down. Furthermore, the upper edge of the end cap 31 is raised in an upward ring and surrounds the nozzle 32, giving it a better visual effect.
[0040] In practical applications, when the nozzle 32 is pressed down, the spring 35 is squeezed, and the air pressure in the squeezing chamber 30 increases due to the reduced volume. After the nozzle 32 is released, the spring 35 causes the nozzle 32 to return to its original position, and the volume in the squeezing chamber 30 suddenly increases, causing the steel ball 36 to move upward locally. The resulting negative pressure effect causes the detergent in the receiving chamber 11 to enter the squeezing chamber 30 through the liquid inlet pipe 34, and further enter the nozzle 32 and be sprayed outward from the spray outlet 38. After the air pressure stabilizes, the steel ball 36 returns to its original position and seals the liquid inlet hole. In addition, the end cap is screwed onto the upper end of the cylinder so that it can be detached upward to increase the amount of detergent. The detergent is preferably an alcohol compound.
[0041] The above description is merely a preferred embodiment of this utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of this utility model, all of which will fall within the protection scope of this utility model.
Claims
1. A microscopic eyepiece wiping pen, characterized in that, include: The cylinder (1) has an internal cavity (11) for holding cleaning agent, and the lower end of the cavity (11) is closed and the upper end is open. The lower end face of the cylinder (1) is recessed to form a insertion groove (12). The nozzle assembly (3) is detachably mounted on the upper end of the cylinder (1) to spray the cleaning agent in the receiving cavity (11) outward; The cleaning accessory (2) includes a connecting part (21) and a cleaning part (22) connected together, and the upper end of the cleaning part (22) is detachably inserted into the insertion slot (12). The cleaning part (22) is used to clean the lens of the ophthalmic microscope lens.
2. The ophthalmic microscope lens wiping pen as described in claim 1, characterized in that, At least one limiting groove (14) is longitudinally provided on the inner wall of the insertion groove (12), and the outer wall of the connecting part (21) has a number of limiting ribs (27) that are opposite to the limiting groove (14).
3. The ophthalmic microscope lens wiping pen as described in claim 2, characterized in that, The bottom surface of the insertion slot (12) is also fitted with a first magnetic block (13), and the upper end surface of the connecting part (21) is fitted with a second magnetic block (23), and the polarities of the first magnetic block (13) and the second magnetic block (23) are opposite.
4. The ophthalmic microscope lens wiping pen as described in claim 3, characterized in that, The cleaning part (22) is one of the following: ultra-fine nylon fiber brush, sponge disc brush, or sponge pointed brush.
5. The ophthalmic microscope lens wiping pen as described in claim 1, characterized in that, The nozzle assembly (3) includes an end cap (31) covering the upper end of the cylinder (1) and a nozzle (32) that is longitudinally movable and mounted on the end cap (31). The lower end face of the end cap (31) has a downwardly extending and hollow extension (33). The extension (33) forms an upwardly open extrusion chamber (30). The lower end of the nozzle (32) extends into the extrusion chamber (30) at least partially. A spring (35) is mounted in the extrusion chamber (30). The upper and lower ends of the spring (35) abut against the lower end face of the nozzle (32) and the bottom surface of the extrusion chamber (30), respectively.
6. The ophthalmic microscope lens wiping pen as described in claim 5, characterized in that, The nozzle (32) has an internal liquid outlet channel (39), the inlet (37) of the liquid outlet channel (39) is located on the bottom surface of the nozzle (32), and the outlet (38) of the liquid outlet channel (39) is located on the outer side wall of the nozzle (32).
7. The ophthalmic microscope lens wiping pen as described in claim 6, characterized in that, The lower end face of the extension (33) is provided with a liquid inlet hole, and the lower end face of the extension (33) extends further downward around the liquid inlet hole to form a liquid inlet pipe (34).
8. The ophthalmic microscope lens wiping pen as described in claim 7, characterized in that, Inside the extrusion chamber (30), a steel ball (36) is movably disposed in the liquid inlet hole, and the lower end of the spring (35) at least partially abuts against the steel ball (36), so that the steel ball (36) has a first position state that closes the liquid inlet hole and a second position state that opens the liquid inlet hole, and the steel ball (36), the spring (35), and the liquid inlet hole together constitute a one-way valve structure.
9. The ophthalmic microscope lens wiping pen as described in claim 8, characterized in that, The nozzle (32) has an annular groove formed on its outer wall, and the extrusion chamber (30) has an annular flange on its inner wall, with the inner edge of the annular flange extending into the annular groove, which allows the nozzle (32) to move longitudinally and prevents the nozzle (32) from coming off upward.
10. The ophthalmic microscope lens wiping pen as described in claim 9, characterized in that, The upper edge of the end cap (31) is raised in an upward ring and surrounds the nozzle (32).