The Trans-Century Journey Of The Veress Needle From Tuberculosis Treatment To The Laparoscopic Revolution

https://en.wikipedia.org/wiki/Veress_needle

Core Perspective: Historical Evolution and Future Prospects

Few people know that the Veress needle was not originally invented for laparoscopic surgery. In 1938, Hungarian physician János Veress designed this needle for the purpose of artificial pneumothorax therapy-a treatment for pulmonary tuberculosis at the time. The procedure involved injecting air into the pleural cavity to collapse the lung, thereby inhibiting the proliferation of tubercle bacilli. That original needle featured a spring-loaded blunt inner stylet designed to prevent lacerating the lung tissue. It was not until the 1970s, with the dawn of modern laparoscopy, that German surgeon Kurt Semm first applied the Veress needle to abdominal insufflation, opening a new chapter in its mission. This eighty-year history attests to the vitality of excellent design: a working principle can transcend its original application to shine in entirely new fields.

From Pleura to Peritoneum: Adaptive Migration of Working Principles

The logic governing the Veress needle in both thoracic and abdominal cavities remains consistent: utilizing a spring-loaded blunt tip to protect deep-seated organs while using the hollow lumen to inject gas. However, abdominal applications present greater challenges: the abdominal wall is thicker than the chest wall, and harbors major vessels and bowel loops. Consequently, while retaining the original spring mechanism, the modern Veress needle has undergone multiple refinements: its length has increased from 100 mm to 120–150 mm; the spring force has been precisely calibrated; the needle bevel has evolved from a single-sided to a double-sided symmetric design to reduce tissue plugging; and the material has advanced from stainless steel to medical-grade nitinol (nickel-titanium alloy) to enhance flexibility. These improvements have not altered the core principle but have significantly increased the safety margin.

New Directions in the Wave of Digitalization

Entering the 21st century, the Veress needle has begun to embrace digital technology. In 2015, an Israeli company launched a "Smart Veress Needle" featuring fiber-optic sensors embedded within the shaft to measure tissue impedance in real time. As the needle passes from the muscle layer to the fat layer and finally into the peritoneum, the impedance curve exhibits characteristic changes. The system uses this data to display the current tissue plane on screen and even predict the moment of breakthrough. Preliminary clinical trials indicate this technology can reduce puncture failure rates by 50%. Another innovation is the "pressure-feedback Veress needle," which monitors the reactive force of the tissue ahead of the tip via micro-pressure sensors, automatically halting advancement once a preset threshold is reached to prevent over-penetration.

Furthermore, the widespread adoption of disposable sterile Veress needles has transformed surgical workflows. Previously, reusable metal Veress needles required cleaning and sterilization after each use, posing risks of wear and tip dulling. Disposable devices guarantee a sharp, pristine instrument with consistent spring performance every time, significantly reducing complications arising from equipment degradation. Although this increases the cost per procedure, it offers high cost-effectiveness from the perspective of overall medical safety.

Future: Will the Veress Needle Be Replaced by Robots?

With the widespread application of the da Vinci surgical robot, some propose that robotic arms could automate the puncture process. While robots can indeed achieve millimeter-level precision, they lack the tactile perception of the human finger. The "tissue feel" of the Veress needle is precisely what is difficult for robots to simulate-those subtle changes in resistance and the vibrations of the spring are the "sixth sense" of an experienced surgeon. Therefore, a more likely future lies in human-robot collaboration: the robot holds the needle along a preset trajectory, while the surgeon feels the tissue resistance through a force-feedback handle and makes the final decision. The mechanical soul of the Veress needle will combine with the control algorithms of artificial intelligence to create an access method that is both safe and efficient.

Looking back at history, the Veress needle has evolved from a tool for treating tuberculosis to a cornerstone of laparoscopic surgery, and now to an instrument integrated with sensors and AI. Its working principle has remained constant: solving the most complex biosafety problems with the simplest mechanical structure. This wisdom of "meeting myriad changes with constancy" is worthy of deep reflection by all medical device designers.