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Angle-adjustable sheath for a dual-stage venous cannula.
K Akiyama1, A Takazawa, T Maeda
1Department of Cardiovascular Surgery, Iwaki Kyoritsu General Hospital, Iwaki City, Fukushima, Japan.
The Annals of Thoracic Surgery
|April 24, 1999
Summary
A novel stainless steel sheath allows a dual-stage venous cannula to bend, improving surgical access. This innovation facilitates faster aortic root procedures during cardiopulmonary bypass.
Area of Science:
- Cardiovascular Surgery
- Medical Device Design
Background:
- Dual-stage venous cannulas are essential for cardiopulmonary bypass.
- Existing cannulas can obstruct surgical views in the aortic root, hindering procedures.
Purpose of the Study:
- To design and evaluate a novel sheath for dual-stage venous cannulas.
- To improve surgical access and efficiency in aortic root operations.
Main Methods:
- Development of a stainless steel sheath to enable cannula bending.
- Integration of the sheath with a standard dual-stage venous cannula.
Main Results:
- The modified cannula can be bent to maintain optimal angles for surgery.
- The sheath design allows for unobstructed views and maneuverability in the aortic root.
Conclusions:
- The new sheath design enhances the utility of dual-stage venous cannulas.
- This innovation can lead to faster and safer aortic root procedures during cardiopulmonary bypass.