Making minimally invasive lithotripsy and soft tissue surgery more precise and safer：1940nm

In today’s rapidly advancing landscape of minimally invasive surgery and endoscopy, there is a growing clinical demand for tools that deliver precision, minimal tissue damage, and faster patient recovery. The Rayever Thulium Fiber Laser Therapy System, introduced by Chengdu Mirayever Optoelectronic Technology Co., Ltd., leverages its core 1940nm wavelength—positioned at the peak water absorption band—to emerge as a compelling option for urological lithotripsy and intracavitary soft-tissue ablation.

Why 1940nm?

The defining feature of this system is its 1940nm thulium fiber laser wavelength, which sits exactly at the water absorption peak. Because laser energy is efficiently absorbed by water in tissue, the clinical benefits are both intuitive and significant:

Shallow tissue penetration: Energy is absorbed rapidly by superficial water content, strictly limiting the thermal damage zone to shallow depths. This reduces postoperative edema, scarring, and collateral injury to surrounding healthy mucosa.

Clear intraoperative vision: Shallow, efficient vaporization coupled with a low bleeding risk keeps the surgical field consistently clear and transparent. This is especially valuable during delicate endoscopic procedures, allowing continuous, stable visualization without frequent pauses to clear the field.

Excellent beam quality: High beam quality enables efficient coupling into small-core fibers (available in 200μm–550μm), ensuring effective energy delivery through flexible and rigid endoscopes alike, and truly enabling non-invasive or ultra-minimally invasive treatment.

Four Core Therapeutic Advantages

Based on its technical profile and clinical feedback, the Rayever Thulium Fiber Laser Therapy System offers four standout advantages:

1. Shallow Tissue Penetration & Clear Visualization

The shallow interaction depth lets surgeons “see clearly and treat accurately,” minimizing inadvertent damage from blind manipulation. This is particularly critical in narrow luminal structures, where a clear field translates to shorter procedure times and enhanced safety.

2. Minimal Trauma & High Safety

With shallow mucosal impact and reduced bleeding risk, patients experience faster recovery and shorter hospital stays, with significantly lower complication rates. For elderly patients or those with comorbidities, this elevated safety profile expands the treatable population.

3. High Peak Power Density & Flexible Parameters

The system delivers up to 600W peak power (60W average power), with adjustable pulse widths from 200μs to 50ms and frequencies from 1 to 2500Hz. Single-pulse energy ranges from 0.025 to 6J, allowing physicians to fine-tune output according to tissue type and procedural requirements—effectively one platform for multiple scenarios.

4. Dusting Lithotripsy

In urological stone management, the laser efficiently fragments stones into fine dust-like particles that can pass naturally, reducing residual stone burden and the need for secondary procedures. Compared with traditional Holmium:YAG lasers, 1940nm thulium demonstrates superior dusting efficiency and ablation speed across stone compositions, including hard cystine and common calcium oxalate calculi.

Indications / Applications

Urinary System Stones

Indicated for stones of the urethra, bladder, ureter, and kidney. When used with flexible or rigid ureteroscopes, it enables precise transluminal lithotripsy without open surgical trauma.

Superficial & Intracavitary Soft Tissue Procedures

Suitable for vaporization and incision of various granulation tissues, masses, polyps, and tumors on body surfaces and within body cavities. The thulium laser’s precision in ablating water-rich tissue also holds promise for ENT, gynecologic, and bronchoscopic applications.

Key Technical Specifications

The compact main unit with air-cooling eliminates the need for external water chillers, simplifying maintenance and OR logistics. Multiple fiber sizes ensure compatibility with different scopes and therapeutic needs.

About Mirayever

Chengdu Mirayever Optoelectronic Technology Co., Ltd. (www.miraver.com) specializes in R&D and manufacturing of medical laser equipment, with deep expertise in thulium fiber laser technology. The company is committed to providing clinically reliable, user-friendly, and cost-effective laser solutions. For technical documentation, custom parameter inquiries, or clinical support, please contact.

Conclusion

From dusting lithotripsy to precise intracavitary soft-tissue ablation, the 1940nm thulium fiber laser is redefining the boundaries of minimally invasive therapy by harnessing the physics of the water absorption peak. Compared with conventional holmium lasers, it offers clear advantages in tissue selectivity, dusting efficiency, and visual clarity; compared with other emerging laser modalities, its mature fiber architecture and versatile parameter range provide strong clinical adaptability. For departments striving to elevate both surgical outcomes and patient experience, this system deserves serious evaluation.

The future of minimally invasive surgery belongs to technologies that are more precise, gentler, and more efficient. The 1940nm thulium fiber laser represents a meaningful step forward on that path.

(Note: This article is for product and technical information sharing. Clinical use should follow medical guidance and device operating instructions.)