Location History:
- Ouazakounosu, Koga-shi, Ibaraki Pref., JP (1994)
- Koga, JP (1995 - 2002)
Company Filing History:
1 out of 7 
1 out of 10 
1 out of 832,812 Years Active: 1994-2002
Title: **Katsumi Takahashi: Innovator in Surgical Instrumentation and Blood Pump Design**
Introduction
Katsumi Takahashi, a notable inventor based in Koga, Japan, holds three patents that reflect his contributions to medical device innovation. His work primarily focuses on enhancing surgical procedures and improving blood circulation systems, showcasing his commitment to addressing critical healthcare challenges.
Latest Patents
One of Takahashi's significant inventions is the patent for a **surgical insertion instrument body having a distending portion**. This innovative device features a longitudinal metallic core portion with a distending portion that can be heated above a transforming temperature. Designed to be inserted into lumens such as blood vessels, the distending portion utilizes a shape-memory material, enabling it to return to its original shape effectively. The construction of this instrument includes an electrical insulating layer and a flexible sleeve, enhancing its functionality and safety.
Another notable patent is his **blood pump**, engineered to circulate blood efficiently. The pump consists of a rotor within a substantially flat casing, fashioned to include a suction port and a discharge port. It features a conical projecting portion at the rotor's center, alongside alternating upper and lower side passages that facilitate blood flow. This unique design prevents blood stagnation, thereby reducing the risk of thrombus formation in peripheral blood vessels and minimizing adverse effects on renal function.
Career Highlights
Katsumi Takahashi has made significant strides in the medical device industry, particularly during his tenure at renowned companies like Johnson & Johnson. His contributions have not only advanced the technology of surgical instruments but also addressed critical issues in blood circulation, enhancing patient outcomes in medical settings.
Collaborations
Throughout his career, Takahashi has collaborated with knowledgeable professionals such as Hiroshi Sasagawa and Yasuhiro Fukui. These partnerships have been instrumental in developing innovative medical devices, amplifying the impact of his inventions.
Conclusion
Katsumi Takahashi stands as a prominent figure in the realm of medical device innovation, merging technology with healthcare to create inventions that significantly improve surgical and circulatory procedures. His patents reflect not only his expertise but also his dedication to enhancing patient care and advancing medical technology.