A medical head magnifying glass with condenser lens

Abstract

A medical head loupe with a condenser lens, comprising a size-adjustable head frame (1), a multimodal optical system, and an intelligent semicircular illumination system; the size-adjustable head frame (1) is provided with locking screws (2) symmetrically on both sides; the two ends of the multimodal optical system are connected to the size-adjustable head frame (1) via locking screws (2) in order to adjust the angle and rigidity of the multimodal optical system; the front end of the size-adjustable head frame (1) is provided with an adjustable bracket (3); the intelligent semicircular illumination system is mounted on this bracket (3); the inclination angle of the intelligent semicircular illumination system can be adjusted via the bracket (3).

Description

Technical FieldThe invention relates to the technical field of medical products and relates in particular to a medical head magnifying glass with a condenser lens.Background TechnologyThe head-mounted magnifying lens is mainly used by physicians in surgery or other examinations and treatments to illuminate and enlarge the field of view that is widely used in cardiac thorax surgery, neuro surgery, HNO medical care, dental care and other related departments and is indispensable in the medical field.There are some problems with prior art head-worn magnifying glasses: 1. nonuniform weight distribution: With conventional head-worn magnifying glasses, the weight of the light source and lens concentrates on the forehead, which can easily lead to neck fatigue in physicians.2. Optical Performance Constraints: The existing equipment has the problems of aberration and chromatic aberration, and a single cold light source can easily produce shadows or glare, which affects surgical field of view and surgical accuracy.3. Insufficient adjustment flexibility: The magnification is fixed or the adjustment range is small, which cannot meet the requirements of several scenarios.4. Poor antifog effect: On prolonged use, the lens can easily fog by breathing.Therefore, a medical head magnifying lens having a condenser lens is urgent to solve the above-described technical problems.Contents of the Utility ModelThe technical object of the invention is to overcome the deficiencies of the above technology and to provide a medical head magnifying glass with a condenser lens.To solve the above technical problems, the invention provides a condenser lens type medical head magnifying lens comprising:A size adjustable head frame, a multi-mode optical system and a smart semi-circular illumination system. The head frame adjustable in size is provided symmetrically on both sides with locking screws. The two ends of the multimodal optical system are connected to the size adjustable head frame via locking screws in order to adjust the angle and strength of the multimodal optical system. The front end of the adjustable-size head frame is provided with an adjustable bracket. The smart semicircular lighting system is mounted on this bracket. The angle of inclination of the smart semicircular lighting system may be adjusted via the bracket.As an improvement, the smart semi-circular lighting system includes a smart flood light emitter and a smart semi-circular headlamp. The smart flood light emitter is mounted on an adjustable mount. At the front of the smart flood lamp is a smart semi-circular headlamp. Inside the smart flood lamp is a lithium battery. At the top of the smart flood lamp is a Type C power interface. And at the upper end of the smart flood lamp is a light source power switch.As an improvement, the multimode optical system comprises a bracket and a lens group. The brackets are screwed on both sides of the lens group. The two brackets are connected to the adjustable-size head frame by means of locking screws.The lens group uses a lens with a magnification of 1.8 times.As an improvement, the adjustable-size head frame is provided on the top and back sides with adjustment knobs for adaptation to different head features.As an improvement, the adjustable mounting is provided on both sides at the front end of the adjustable-size head frame with leather protection sleeves fastened by pushbuttons.As an improvement, the adjustable-size head frame is made of ABS material.The advantages of the utility model over the prior art are: 1. improved optical performanceDistortion control: By this lens group, edge distortion can be better observed at 1.8 times magnification to better control edge distortion.Extended Field of View: The effective diameter of the surgical field is 45 mm, thereby reducing the frequency of head movements during surgery.Adaptable to various scenarios.2. Innovation in Ease of OperationWeight optimisation: The adjustable-size head frame made of ABS material ensures a comparatively low total weight. In combination with the rear adjustment knob, the weight is balanced and the neck pressure is effectively reduced, thereby reducing the fatigue index of the wearer.3. Breakthrough in the Illumination SystemShadowless effect: The superposition of the double-ring light source achieves a high uniformity of illumination of the operating field.Improved tissue recognition: The adjustable spectral mode improves the contrast between blood vessels and soft tissue.4. Improved Battery Life and ReliabilityPower consumption management: Dynamic power distribution technology is used to extend battery life in 1.8 times boost mode+ high brightness mode.Anti-fogging: The lens remains clear for a longer time at a relative atmospheric humidity of 95%.5. Improved Surgical PrecisionEye surgery, cosmetic face surgery, some surgical procedures, removal of skin sutures, etc. are focused.Description with DrawingsFIG. 1 schematically shows the stereoscopic structure of a medical head magnifying glass with a condenser lens of the utility model in plan view. FIG. 2 schematically shows the stereoscopic structure of a medical head magnifying glass with a condenser lens of the utility model in plan view. FIG. 3 schematically shows the structure of a medical head magnifying glass with a condenser lens of the utility model in the disassembled state.As shown in the figure:1. Adjustable-size head mount, 2nd set screws, 3rd adjustable mount, 4th smart flood light emitter, 5th smart semi-circular headlamp, 6th lithium battery, 7th type C power interface, 8th light source power switch, 9th bracket, 10th lens group, 11th adjustment knob, 12th leather protective cover.The specific embodimentIn order to clarify the purpose of the technical solutions and the advantages of the embodiments of the utility model, the technical solutions in the embodiments of the utility model will be described clearly and fully below in conjunction with the drawings in the embodiments. Obviously, the description of the embodiments is part of the embodiments of the invention and not all of the embodiments. The components of the embodiments of the utility model generally described herein and illustrated in the figures may be arranged and configured in a variety of different configurations.Referring to Figures 1-3, a medical head magnifying lens comprises:A size adjustable head frame 1 is made of ABS material with a relatively high surface finish. It is resistant to moisture, chemicals and fats and has good dimensional stability within a certain temperature range. The upper and rear sides of the adjustable-size head frame 1 are each provided with adjustment knobs 11 with which the wearing comfort can be dynamically adapted. It can be adapted to the head circumference and hairline height of different wearers and thus adapted to different head shapes. The total weight is < 275 g and is thus lighter.A multimode optical system. The adjustable-size head frame 1 is provided symmetrically on both sides with locking screws 2. The two ends of the multimodal optical system are connected to the size adjustable head frame 1 by means of set screws 2 to adjust the angle and strength of the multimodal optical system.The multimodal optical system comprises brackets 9 and a lens group 10. The two brackets 9 are connected to the adjustable-size head frame 1 by means of locking screws 2.The lens group 10 uses a lens of 1.8 times magnification. Both sides of the lens group 10 are connected to the brackets 9 by screws, which enables rapid support during operation. After wearing, the lens is 50 mm away from the wearer's eyes, thus ensuring a wide field of view.Lens group 10 uses an aspherical lens set and eliminates edge distortions by a gradient refractive index design. The visual focusing distance is 180 mm to 320 mm and the field of view diameter ≥ 40 mm.The bracket 9 is 160 mm long and wide (the widest point measures 200 mm for simple fastening, the narrowest point measures 10 mm). The width of the joint with the lens group 10 is 10 mm×25 mm for easy joint. It consists of ABS material. The bow 9 is of narrow and semi-streamlined design in order to save weight and to act more appealing visually.A smart semicircular lighting system, wherein the size adjustable head frame 1 is provided with an adjustable bracket 3 at the front side, and the smart semicircular lighting system is disposed on the adjustable bracket 3, and the inclination angle of the smart semicircular lighting system can be adjusted by the adjustable bracket 3 at an adjustable angle of 0 to 90 degrees.The smart semi-circular lighting system includes a smart flood light emitter 4 and a smart semi-circular headlamp 5. the smart flood light emitter 4 is mounted on an adjustable mount 3. A smart semi-circular headlight 5 is disposed on the front side of the smart flood light emitter 4. a lithium battery 6 is disposed inside the smart flood light emitter 4. a type C current interface 7 is disposed at the upper end of the smart flood light emitter 4. and a light source current switch 8 is disposed at the upper end of the smart flood light emitter 4.The smart semi-circular headlamp 5 uses a semi-circular LED array (color temperature 5000 K±200 K, color rendering index Ra≥ 90) to aid brightness adjustment. The width is 120 mm, the wick is made of long-lived XPE+COB material and the type C-current interface 7 is watertight and moisture resistant.The smart semi-circular headlamp 5 has highlight and spot functions (both have a high / low setting function) and can control the turning on and off and the intensity of the light source via the light source power switch 8.The adjustable mounting 3 at the front end of the adjustable-size head frame 1 is provided on both sides with leather protection sleeves 12 which are fastened by pushbuttons and are weld-absorbing, wear-resistant, slip-resistant and resistant to ageing.In the concrete implementation of the utility model, laboratory tests and clinical verifications have shown that the utility model achieves the following trajectory-breaking improvements compared to the prior art: 1. improved optical performanceDistortion control: By developing a gradient refractive index lens group, the edge distortion at 1.8x magnification of 8.2% is reduced to 2.1% compared to conventional solutions (tested according to ISO 13666).Extended Field of View: The effective diameter of the surgical field reaches 45 mm (conventional devices ≤ 35 mm), thereby reducing the frequency of head movements during surgery by 47%. Adaptable to various scenarios.2. Innovation in Ease of OperationWeight Optimization: The adjustable size head frame of ABS material reduces the total weight to 275 g (the average weight of comparable products is 450 g). With the rear adjustment knob 11, the neck pressure is reduced by 32% (EMG electromyography monitoring data).Reduced Fatigue Index: After two hours of continuous wear, the amplitude of the wearer's neck electromyography activity decreased from 380 μV to 210 μV (45% decrease).3. Breakthrough in the Illumination SystemShadowless effect: The superposition of the double-ring light source achieves the uniformity of surgical illumination (Emin / Emax) of 0.82 (in the case of a conventional single light source, only 0.35).Improved tissue recognition: The adjustable spectral mode increases the contrast between blood vessels and soft tissue to 1:7.3 (1:4.1 under conventional white light).4. Improved Battery Life and ReliabilityPower consumption management: The dynamic power distribution technology is adopted, and the battery life is up to 9.5 hours in the 1.8 times boost mode+high brightness mode (industry average: 4-6 hours).Anti-fogging: The lens remains clear at a relative humidity of 95% for 3 hours (control group: 1.2 hours).5. Improved Surgical PrecisionEye surgery, cosmetic face surgery, some surgical procedures, removal of skin sutures, etc. are focused.6. Quantification of clinical utilityThe 50 exceptions to eye surgery (eyelid surgery, bulby conjunctival surgery, cosmetic facial surgery) include:18 % to 22% shorter operation time (by fewer lens sheets and light adjustments).The positioning error of the operating field could be reduced from +0.38 mm to ±0.15 mm.

Claims

A condenser lens type medical head magnifying glass comprising a size adjustable head frame (1), a multi-mode optical system and a smart semi-circular illumination system; the size adjustable head frame (1) is symmetrically provided with set screws (2) on both sides; the two ends of the multi-mode optical system are connected to the size adjustable head frame (1) via set screws (2) to adjust angle and strength of the multi-mode optical system; the front end of the size adjustable head frame (1) is provided with an adjustable bracket (3); the smart semi-circular illumination system is mounted on this bracket (3); the inclination angle of the smart semi-circular illumination system can be adjusted via the bracket (3).A condenser lens type medical head magnifying glass according to claim 1, characterized in that the smart semi-circular illumination system comprises a smart flood lamp (4) and a smart semi-circular headlamp (5); the smart flood lamp (4) is mounted on an adjustable mount (3); a smart semi-circular headlamp (5) is located at the front of the smart flood lamp (4); a lithium battery (6) is located inside the smart flood lamp (4); a type C current interface (7) is located at the top of the smart flood lamp (4); and a light source current switch (8) is located at the top of the smart flood lamp (4).A medical head magnifying lens with condenser lens according to claim 1 characterised in that the multimode optical system comprises brackets (9) and a lens group (10); the brackets (9) are screwed on both sides of the lens group (10); the two brackets (9) are connected to the size-adjustable head frame (1) via locking screws (2); the lens group (10) uses a lens with a magnification of 1.8 times.A medical head magnifying glass with condenser lens according to claim 1, characterised in that the adjustable-size head frame (1) is provided on the top and rear side with adjustment knobs (11) in each case for adaptation to different head features.A medical head magnifying glass with condenser lens according to claim 1 characterised in that the adjustable mounting (3) is provided on both sides at the front end of the size-adjustable head frame (1) with leather protection sleeves (12) fastened by pushbuttons.A medical head magnifying glass with condenser lens according to one of the claims 1 to 5, characterized in that the size-adjustable head frame (1) consists of ABS material.

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