In recent years, intelligent lighting systems have transformed the way we interact with our living and working spaces. From smart homes and modern offices to smart street lighting networks, the adoption of advanced automation technologies is rapidly expanding. Traditional lighting solutions, once limited to simple on/off switches, are now being replaced by network-controlled, sensor-driven, and energy-optimized platforms. At the heart of this transformation lies a set of critical electronic components, among which the crystal oscillator plays an essential role, particularly within ultrasonic sensors.

 

The Evolution of Lighting Control

Conventional lighting systems relied solely on manual operation. With the rise of IoT-enabled devices, lighting infrastructure is moving toward automated management, allowing for real-time control, adaptive brightness adjustment, and predictive maintenance. Ultrasonic sensors are widely deployed in these intelligent lighting setups, enabling motion detection, occupancy monitoring, and environmental feedback. However, for these sensors to function accurately, a highly stable clock source is necessary — this is where crystal oscillators come into play.

 

The Role of Ultrasonic Sensors in Smart Lighting

Ultrasonic sensors operate by emitting high-frequency sound waves and measuring the reflected signals to detect movement or the presence of objects. These sensors are crucial for enabling hands-free lighting control, improving energy efficiency, and enhancing user comfort in smart homes, office environments, and large-scale outdoor lighting installations. To achieve precise time measurement and reliable distance calculations, the sensor circuitry depends on a steady timing reference, which is provided by a crystal oscillator.

 

How Crystal Oscillators Support Ultrasonic Sensor Functionality

A crystal oscillator is an electronic component that generates a consistent frequency signal based on the mechanical resonance of a quartz crystal. Within ultrasonic sensors, this signal acts as the master clock, synchronizing the timing of sound wave emission and reception. This synchronization ensures:

 

High detection accuracy: A stable oscillation frequency allows precise calculation of sound wave travel time, ensuring reliable motion sensing even in complex environments.

 

Low latency response: A high-quality oscillator minimizes delays, allowing lighting systems to react immediately to occupancy changes.

 

Interference reduction: Accurate frequency control helps ultrasonic sensors avoid false triggers caused by noise or overlapping signals from other devices.

 

Without a dependable oscillator, ultrasonic sensors may suffer from timing drift, resulting in inconsistent detection and inefficient lighting control.

 

Integration in Network-Controlled Lighting Systems

In modern lighting networks, multiple sensors and controllers communicate wirelessly or via wired connections. This requires synchronized timing signals to prevent data collisions and ensure coordinated actions across the entire system. Crystal oscillators provide the frequency stability necessary for seamless communication between ultrasonic sensors, microcontrollers, and central lighting management hubs. This synchronization is critical for enabling advanced features such as:

 

Adaptive dimming based on real-time occupancy data

 

Scheduled lighting operations with precise time stamps

 

Energy optimization algorithms for large smart building infrastructures

 

Key Benefits of Crystal Oscillators in Intelligent Lighting

Enhanced reliability: Ensures consistent sensor performance over time, even under varying temperature or environmental conditions.

 

Improved system stability: Supports reliable data transfer between sensors and controllers in a networked environment.

 

Scalability: Allows integration of multiple sensors in large-scale installations without compromising accuracy.

 

Extended lifespan: Stable oscillation reduces the risk of signal errors, lowering stress on sensor circuitry and improving durability.

 

The transition from manual switch-based lighting to intelligent, automated systems is revolutionizing residential, commercial, and urban spaces. Ultrasonic sensors are at the forefront of this shift, enabling responsive, energy-efficient, and user-friendly lighting solutions. Behind their precision lies the crystal oscillator, a small yet vital component that guarantees stable timing signals for reliable sensor operation. As smart lighting technology continues to evolve, the importance of high-quality oscillators in ensuring seamless sensor performance will only grow, making them a cornerstone of next-generation lighting control systems.

 

In today’s fast-paced dental practices, ensuring both hygiene and patient comfort is paramount. A reliable Paper Apron serves as the first line of defense against spills and splashes, keeping gowns and clothing spotless during procedures. Available in two superior materials—durable paper film and soft non-woven fabric—these aprons offer an ideal combination of protection and breathability for every patient.

Dental professionals know the importance of a well-fitting Dental Apron. Our factory-customizable sizes mean you can choose the perfect dimensions to suit pediatric, adult, or specialty cases. Whether you prefer the moisture-resistant strength of paper film or the gentle touch of non-woven fabric, our products adapt seamlessly to your clinic’s needs without compromising on safety standards.

When efficiency matters, a Disposable Apron simplifies workflow and minimizes cross-contamination risks. After a single use, you can simply discard the apron, reducing laundering costs and freeing up your team to focus on patient care. Plus, our eco-friendly materials ensure responsible disposal without harming the environment.

By integrating our custom-sized, high-quality aprons into your practice, you demonstrate a commitment to both professionalism and patient well-being. Every aspect—from material selection to packaging—has been optimized for ease of use, so you can maintain a smooth, hygienic operation from check-in to check-out.

At Paper Apron, we pride ourselves not only on delivering top-tier Paper Apron products but also on the exceptional service ethos to Telijie. Our dedicated team offers personalized support, rapid turnaround on custom orders, and comprehensive after-sales care to ensure your clinic never runs low on essential supplies. Choose Telijie for a partnership that elevates your practice’s safety, efficiency, and reputation.

When it comes to maintaining the highest standards of hygiene and comfort in your spa or wellness center, choosing the right supplies makes all the difference. SPA Disposable nonwoven rolls offer a soft, durable barrier that keeps your massage tables and treatment beds impeccably clean between clients. Designed for spas, salons, and medical practices, these rolls ensure your space looks professional and inviting without the hassle of laundering fabric sheets.

Beyond their hygienic appeal, SPA Disposable nonwoven rolls excel in comfort and strength. Unlike traditional paper rolls that can tear or wrinkle, our massage bed paper roll is crafted from premium nonwoven fibers, providing a smooth, tear-resistant surface that won’t bunch up during treatments. Clients appreciate the gentle feel against their skin, while therapists enjoy the ease of unrolling and tearing off perfectly straight sheets—every time.

Versatility is another hallmark of our SPA Disposable nonwoven rolls. Whether you need full-length disposable bed sheets for facial beds, massage tables, or treatment chairs, one roll caters to all. The generous width and customizable length let you cover any surface quickly, saving time on setup and cleanup. Plus, these rolls are fully biodegradable, striking the perfect balance between operational efficiency and eco-friendly practice.

At Telijie, we understand that exceptional products deserve exceptional service. As the leading provider of SPA Disposable nonwoven rolls, we not only guarantee top-quality materials but also a streamlined ordering process, fast delivery, and responsive customer support. Our commitment to your satisfaction means you can focus on delivering outstanding care to your clients while we handle the rest.

Bladder cancer is one of the most common malignancies of the urinary system. Radical cystectomy remains the golden standard for treating muscle-invasive bladder cancer, yet it is considered one of the most complex and demanding procedures in urologic surgery. The main challenges include intricate pelvic anatomy, dense distribution of vital vessels and nerves, high risk of bleeding or rectal injury, extensive surgical scope requiring en bloc removal of the bladder and prostate, iliac lymphadenectomy, and complex urinary diversion with significant postoperative complications--all of which severely impact surgical outcomes and patient recovery.  

 

With the advancement of minimally invasive techniques such as laparoscopy and cystoscopy, these challenges are gradually being overcome. Leading experts like Professor Zhang Zheng’s team at Peking University First Hospital have demonstrated mature surgical capabilities. During radical cystectomy, Prof. Zhang frequency employs the AGISEAL SL0844 instrument to efficiency and safely manage lateral bladder pedicles and pelvic lymph mode dissection. AGISEAL enables direct coagulation of deep vascular networks--including the dorsal vein complex--avoiding the limited visibility and complexity associated with traditional suturing. This reduces the need for perioperative transfusions and minimizes secondary pelvic bleeding. Additionally, AGISEAL enables rapid and effective handling of obturator vessels, significantly improving surgical efficiency and reducing operative time. With no foreign material left behind, it supports better postoperative recovery and demonstrates strong clinical performance. As a result, AGISEAL has become a preferred energy device in complex urologic procedures. 

 

Proven across multiple cases, AGISEAL is well-suited for the demands of urologic surgery and serves as a reliable tool in high-difficulty radical cystectomy for bladder cancer. 

With the increasing prevalence of early thyroid disease screening, the diagnosis and surgical rates of thyroid conditions are on the rise. For malignant tumors and large benign nodules that impair swallowing or breathing, unilateral or bilateral lobectomy remains the standard treatment^[1]. High-quality surgical instruments not only improve efficiency but also reduce complications.

 

In most Chinese hospitals, ultrasonic scalpels are commonly used in thyroid surgery. These devices utilize high-frequency vibrations to break protein bonds, enabling simultaneous tissue dissection and vessel sealing. Ultrasonic scalpels are flexible and can replace multiple traditional instruments—including electrocautery, scissors, vascular clamps, ligatures, and sutures—thereby shortening operative time and minimizing blood loss. Furthermore, they do not cause neuromuscular electrical stimulation. However, potential risks exist: the relatively bulky “scissor-style” blade of the ultrasonic scalpel may conduct excessive heat near delicate structures, such as the recurrent laryngeal nerve, increasing the risk of thermal injury and even permanent paralysis^[2].

 

Bipolar coagulation systems, originally used in neurosurgery, have shown excellent hemostatic precision in small vessels and are increasingly favored by thyroid surgeons ^[3]. ShouLiang-med’s bipolar forceps feature mirror-polished tips for superior conductivity, thermal efficiency, and anti-stick performance. Tip widths range from 0.25 mm to 2 mm, making them suitable for a wide range of procedures. In thyroid surgery, they allow for fine dissection near the recurrent laryngeal nerve and precise control of minor bleeding around nerve structures, with minimal thermal spread to adjacent tissues.

 

Preserving the parathyroid glands and their blood supply is another key challenge. Studies have shown a significantly lower incidence of postoperative hypocalcemia in patients treated with bipolar forceps compared to those treated with ultrasonic scalpels ^[4], likely due to the reduced collateral thermal damage and better vascular control. Moreover, postoperative drainage volumes were also lower in the bipolar group, possibly due to: (1) more precise coagulation of microvasculature, and (2) lower thermal tissue exudation compared to ultrasonic devices.

 

In conclusion, bipolar forceps offer a cost-effective solution with fine tips and limited thermal spread, significantly reducing the risk of injury to the recurrent laryngeal nerve and parathyroid glands. They present a viable alternative to ultrasonic scalpels in open thyroidectomy^[4].

 

 

References

[1] Thompson NW, Olsen WR, Hoffman GL. The continuing development of the technique of thyroidectomy [J]. Surgery, 1973, 73(6):913-927.

[2] Materazzi G, Caravaglios G, Matteucci V, et al． The impact of the

Harmonic FOCUSTM on complications in thyroid surgery: aprospective multicenter study[J]. Updates Surg, 2013, 65 (4): 295-299．

[3] Pniak T, Formánek M,Matousek P,et al. Bipolar thermofusion BiClamp 150 in thyroidectomy: a review of 1156 operations [J].Biomed Res Int, 2014, 2014: 707265．

[4]Ding S. Comparison of bipolar coagulation forceps and ultrasonic scalpel in thyroidectomy. Advances in Modern General Surgery of China, 2022; 25(08): 639–640+643.

Uterine fibroids are benign tumors arising from the proliferation of smooth muscle cells in the uterus, affecting approximately 30% of women of reproductive age, with a malignancy rate of 0.4%–0.8%. Surgery remains the primary treatment, and advances in medical technology have enabled laparoscopic techniques to make significant strides in gynecology. Laparoscopic myomectomy is widely adopted due to its minimally invasive nature, reduced pain, and overall safety. However, intraoperative hemostasis of the fibroid bed remains a clinical challenge.

 

In a study published in Practical Journal of Integrated Chinese and Western Medicine, Li Kehong et al. compared the clinical performance of ultrasonic scalpels, monopolar electrosurgical devices, and cold knives in 92 laparoscopic myomectomy cases. Patients were divided into three groups: ultrasonic scalpel (32 cases), monopolar electrosurgery (32 cases), and cold knife (28 cases).

 

Results showed that both the ultrasonic scalpel and monopolar electrosurgery groups outperformed the cold knife group in terms of operative time, intraoperative blood loss, and uterine suturing time. Specifically, the monopolar group achieved a significantly shorter operative time (64.6±10.3 minutes vs. 81.7±11.6 minutes), reduced blood loss (103.3±11.5 ml vs.146.6±13.2 ml), and faster suturing (19.4±4.1 minutes vs. 24.3±3.2 minutes). Postoperative recovery was also improved, with earlier mobilization (12.4±4.2 hours) and shorter hospital stays (3.7±0.6 days). The study highlighted the strong performance of monopolar electrosurgery in enhancing surgical efficiency and postoperative recovery, noting its ease of use and cost-effectiveness as key advantages in laparoscopic myomectomy.

 

ShouLiang-med is committed to independent innovation, providing comprehensive energy-based surgical solutions. Our High Frequency Generator support multiple cutting and coagulation modes, meeting the full demands of laparoscopic myomectomy while reducing surgical time and blood loss. Our accompanying range of monopolar instruments—available in various specifications—are engineered for complex laparoscopic procedures. With premium materials, excellent anti-adhesion properties, and precise cutting and coagulation performance, our products have earned widespread clinical recognition.

 

We aim to continue delivering safe and effective solutions to patients worldwide and empowering healthcare providers with more efficient treatment tools.

I. Core Technical Principles

Near-infrared imaging (NIR Technology)

The absorption characteristics of hemoglobin: Deoxyhemoglobin in veins has a higher absorption rate for near-infrared light of specific wavelengths (typically 700-900nm) than that in surrounding tissues.

Reflection difference imaging: The device emits near-infrared light onto the skin, and the camera captures the reflection signal. Through algorithms, the veins are contrasted and enhanced with the surrounding tissues to form a clear image.

Multispectral imaging (optional technology)

Some high-end devices combine visible light and near-infrared light and adapt to different skin tones (such as patients with dark skin) through multispectral analysis.

AI image processing

Edge enhancement algorithm: Highlighting vein contours and reducing noise interference.

Depth prediction: Estimate the depth of veins through reflection intensity to assist in locating deep veins.



Ii. Enhanced Features of Desktop Design

Stable projection system

Fixed projector: Avoid the shaking of  handheld devices Vein Finder and precisely project vein images onto the skin surface (such as green/red contours).

Adjustable stand: Freely adjust the height and Angle to fit different parts such as the arm, back of the hand, and foot.

High-precision camera

Equipped with high-resolution sensors, it captures subtle vascular signals in real time and, in combination with the optical zoom function, magnifies local areas.

Environmental adaptability

Automatic calibration: Dynamically optimize imaging parameters based on ambient light and skin color.

Anti-interference design: Reduce the influence of surgical lamps or other light sources on imaging.



Iii. Work Process (Taking Blood Drawing as an Example)

Step 1: Patient localization

The patient placed his arm flat under the device and kept it stable.

Step 2: Quick scan

The device emits near-infrared light, generating a vein distribution map within 1-2 seconds and projecting it in real time.

Step 3: Vascular selection

Medical staff select the best puncture site (such as thick, straight, and unbifurcated veins) through screen or projection markers.

Step 4: Precise puncture

Puncture is completed under the guidance of venous projection, reducing the number of blind explorations.

Also welcome to contact us, we are ZD Medical Inc.
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In modern healthcare environments, maintaining impeccable hand hygiene is paramount. That’s why our Medical Hand Paper brings together superior functionality and eco-friendly design, ensuring medical professionals can focus on patient care without compromise. Crafted from pure wood pulp paper reinforced with a discreet scrim grid, this innovative material offers both strength and sustainability—qualities no clinic should be without.

Each sheet of our Medical Hand Paper delivers exceptional absorbency, handling oil and water spills with ease. Unlike ordinary tissues, the advanced composition of our Surgical Hand Paper ensures it remains intact even when wet, providing reliable performance during critical procedures. This scrim reinforcement not only enhances tear resistance but also maintains a lint-free surface, reducing the risk of contamination in sterile settings.

Beyond the operating room, our Scrim Reinforced Hand Paper proves indispensable across a range of medical applications. From emergency wards to outpatient clinics, its eco‑friendly, biodegradable nature aligns with hospital sustainability goals while its robust durability meets rigorous daily demands. Healthcare teams appreciate how quickly it soaks up fluids without shredding, making restocking hassle‑free and cost‑effective.

Bringing a new puppy home is exciting—but house‑training can be messy. With the right tools, you can turn accidents into quick clean‑ups. A high‑quality Disposable Puppy Pad not only soaks up moisture instantly but also keeps your floors and carpets spotless. Whether you’re dealing with a tiny piddle or a full‑blown accident, these pads are designed to lock in liquid and eliminate odors, giving both you and your pup peace of mind from day one.

Modern Dog Puppy urine Pads feature super‑absorbent cores that draw moisture away from the surface in seconds. This rapid absorption prevents your pup’s paws from tracking wetness around the house, reducing mess and stress. Many pads also incorporate a waterproof backing and odor‑neutralizing gel, ensuring your home stays fresh even after multiple uses. Ideal for apartment living, travel, or late‑night bathroom breaks, these pads turn puppy accidents into a non‑issue.

For multi‑pet households or senior dogs, Disposable Underpads offer an extra layer of protection under bedding, crates, or pet carriers. Their generous dimensions cover more area than standard puppy pads, making them perfect for larger breeds or deeper bedding layers. When it’s time for disposal, simply fold up the pad and toss it away—no washing, no fuss. This convenience saves you valuable time and effort, so you can focus on playtime and cuddles instead of cleanup.

When it comes to choosing a dependable partner in house‑training, Disposable Puppy Padr stands out for unbeatable quality and service. Beyond our ultra‑absorbent, leak‑proof design, we pride ourselves on the Telijie difference: lightning‑fast shipping, responsive customer support, and a satisfaction guarantee that ensures you’re always cared for. Trust Disposable Puppy Padr to make puppy training as effortless as possible—because a clean home and a happy puppy are just a pad away.

When it comes to the safe and compliant transportation of biological substances, dangerous goods, and laboratory samples, especially by air, the AI650 bag stands out as the industry-leading solution. Engineered to meet the stringent international regulations set by IATA Dangerous Goods Regulations (DGR) and ICAO Packing Instruction 650, these bags are indispensable for ensuring the integrity and security of your valuable shipments.

 

Versatile Applications for Critical Shipments

 

The primary purpose of AI650 sample bags is to facilitate the secure and compliant transport of biohazardous materials and dangerous goods, with a specific focus on air cargo safety. They are meticulously designed for shipping medical, clinical, and diagnostic samples, including UN3373 Biological Substances, Category B. Their robust construction makes them suitable for a wide array of laboratory samples, whether they are in tubes, bottles, or other containers, even those potentially containing infectious agents.

 

Beyond biological samples, AI650 bags are also ideal for transporting dangerous liquids or solids within Packing Groups I, II, and III, particularly when utilized with 4GV packaging kits.

 

Specific applications include:

 

• Air Transport Compliance: Ensuring strict adherence to aviation safety standards for biohazardous and dangerous goods.
• Temperature-Sensitive Transport: Perfectly suited for ambient, refrigerated, frozen, and combination system transport of Category B substances.
• Enhanced UN Packaging: When inner packaging liquids do not independently meet the 95kPa pressure requirement, these bags ensure the assembled UN package qualifies for air transport.

 

Uncompromising Quality and Material Science

 

AI650 95kPa bags are crafted from low-density polyethylene (LDPE), a material widely recognized for its safety in medical preservation applications. Their custom film structure features a powerful adhesive closure and a continuous seal, guaranteeing both liquid containment and tamper evidence. The inherent strength of the polyethylene further enhances safety during handling and transit.

 

For comprehensive Collection and Transport Kits, particularly those utilizing 4GV packaging, additional components such as absorbent bags, fiberboard inserts, pads, ties, pressure-sensitive tape, and 4GV corrugated outer boxes are included, creating a complete and compliant shipping solution.

 

Key material characteristics include:

 

• Custom Film Structure: Guarantees a robust and continuous seal, preventing leaks.
• Medical-Grade LDPE: A safe and reliable material for preserving medical contents.
• Extreme Temperature Resilience: Capable of withstanding temperatures from -40°C to +55°C, ensuring performance in diverse environmental conditions.

 

Essential in Diverse Transport Scenarios

 

The design and capabilities of AI650 95kPa bags make them critical for several high-stakes scenarios:

 

• Aviation Transport: Specifically engineered to meet IATA DGR and ICAO Packing Instruction 650, these bags are integral for assembled UN packages when inner liquid containers don't individually meet the 95kPa pressure requirement, thereby ensuring air transport qualification.

 

• Temperature-Controlled Shipments: With a 95kPa pressure and leak test capability from -40°C to +50°C, and an adhesive closure that withstands -40°C to +55°C, they are perfect for Category B samples requiring ambient, refrigerated, frozen, or combination system transport.

 

• Packaging Kit Integration: Commonly used with 4GV packaging kits, allowing for the secure transport of multiple inner containers (e.g., four 8 oz or 1-liter dangerous materials containers) within a single outer box.

 

• Pressure Resistance: Designed to withstand a differential pressure of no less than 95kPa, providing critical safety during aircraft depressurization. They are tested to meet ISTA Procedure 1A for air transport, including hydrostatic pressure testing.

 

Size	Inner Dimensions (mm)	Inner Dimensions (inches)	Quantity per Box
Small	150mm x 240mm	6″ x 9.5″	400 bags
Medium	250mm x 300mm	9.75″ x 11.75″	200 bags
Large	300mm x 400mm	11.75″ x 15.75″	200 bags
Extra Large	350mm x 450mm	13.75″ x 17.75″	100 bags

 

Our Commitment: Safety and Compliance

 

The core objective of AI650 95kPa bags is to guarantee the utmost safety in the air transport of biohazardous and dangerous goods. They are designed to meet or exceed all standards set by major airlines and the U.S. Department of Transportation (DOT). These bags offer unparalleled leak and tamper protection through their patented adhesive closure and continuous seal.

 

Our bags are engineered to:

 

• Safeguard temperature-sensitive samples (ambient, refrigerated, frozen).
• Ensure 95kPa certified packaging for Category B biological substances through rigorous internal pressure testing.
• Act as a crucial barrier between intermediate packaging (like vermiculite) and inner containers within 4GV UN boxes, significantly enhancing overall safety.

 

The Future of Secure Biological Transport

 

Looking ahead, the AI650 specimen bag will continue to evolve. Future optimizations may include advanced materials and designs to accommodate an even wider range of temperatures and pressure conditions. Standardization and ongoing training will remain paramount to ensure global compliance and safety. We encourage all practitioners in the field to stay informed with the latest updates from authoritative sources to maintain best practices in the secure transport of biological and dangerous goods.