Changzhou KangXin Medical Instruments Co., Ltd.

In the modern medical field, the continuous development of medical equipment provides strong guarantees for the success of surgery. Venous cannulae, as a commonly used medical device, play an important role in various surgeries. With the advancement of technology, two-stage cannulas have emerged, bringing new changes to surgery.

The Development of venous cannulae and two stage cannula

In recent years, the rapid development of medical technology has put forward higher requirements for the safety and effectiveness of surgery. As an important surgical aid, venous cannulae has undergone continuous improvement and innovation. From traditional single function sleeves to today's dual stage sleeves, their design and performance have significantly improved. The emergence of two stage cannula is a major upgrade to venous cannulae, providing a more optimized solution for establishing vascular access during surgical procedures.

Working principle and design features of dual stage casing

Working Principle

Double stage casing typically consists of an inner tube and an outer tube. The inner tube is used to insert blood vessels and establish a direct pathway for blood transfusion, infusion, or drug delivery. The outer tube serves to fix and protect the inner tube, while also preventing blood leakage and infection. During the surgery, doctors can adjust the position of the inner and outer tubes as needed to ensure optimal treatment outcomes.

Design Features

(1) Accurate positioning: The design of the dual stage sheath enables precise vascular positioning, reducing errors during insertion and lowering the risk of vascular damage.

(2) Strong stability: The fixing effect of the outer tube makes the sheath more stable inside the blood vessel, less prone to displacement, and ensures the continuity of blood transfusion or drug delivery.(3) Multifunctionality: two stage cannula can be adjusted and configured according to different surgical needs to meet various treatment objectives.

The advantages of two stage cannula in surgery

Reduce damage to blood vessels

Compared with traditional venous cannula, the insertion of two-stage cannula is gentler and causes less damage to the blood vessel wall. Its precise positioning and stable design reduce the number of repeated insertions, lowering the risk of vascular rupture and thrombosis. For example, in some complex cardiac surgeries, the use of a two stage cannula can effectively protect the patient's blood vessels and reduce the occurrence of postoperative complications.

Improve the efficiency of blood transfusion or drug delivery

The design of the inner and outer tubes of the dual stage sheath makes blood transfusion or drug delivery smoother. The inner tube is directly connected to the blood vessels, which can quickly deliver blood or drugs to the patient's body, improving the efficiency of treatment. Meanwhile, the protective effect of the outer tube can prevent blood reflux and drug leakage, ensuring the accuracy of treatment.

Clinical research and successful cases

Multiple clinical studies have shown that the application of two stage cannula in surgery has significant advantages. For example, a study on patients undergoing cardiac surgery found that those who used a two stage cannula had a shorter postoperative recovery time and a lower incidence of complications. In practical clinical cases, many patients have used two-stage cannulas during surgery and achieved good treatment results. A patient with severe heart disease used a two-stage cannula for blood transfusion and drug delivery during surgery, and the postoperative recovery was smooth and the condition was effectively controlled. 

Two stage cannula, as an advanced medical device, plays an important role in surgery. Its unique working principle and design features give it significant advantages in reducing damage to blood vessels and improving the efficiency of blood transfusion or drug delivery. The effectiveness and safety of two stage cannula have been fully recognized through clinical research and successful case verification. If you need high-quality venous cannula, Kangxin Medical is your most reliable venous cannula supplier. Kangxin Medical will continue to be committed to providing high-quality products and services for the medical industry, safeguarding the health of patients.