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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0163241 (1993-12-06) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 724 인용 특허 : 0 |
The invention provides devices and methods for performing less-invasive surgical procedures within an organ or vessel. In an exemplary embodiment, the invention provides a method of closed-chest surgical intervention within an internal cavity of a patient\s heart or great vessel. According to the me
The invention provides devices and methods for performing less-invasive surgical procedures within an organ or vessel. In an exemplary embodiment, the invention provides a method of closed-chest surgical intervention within an internal cavity of a patient\s heart or great vessel. According to the method, the patient\s heart is arrested and cardiopulmonary bypass is established. A scope extending through a percutaneous intercostal penetration in the patient\s chest is used to view an internal portion of the patient\s chest. An internal penetration is formed in a wall of the heart or great vessel using cutting means introduced through a percutaneous penetration in an intercostal space in the patient\s chest. An interventional tool is then introduced, usually through a cannula positioned in a percutaneous intercostal penetration. The interventional tool is inserted through the internal penetration in the heart or great vessel to perform a surgical procedure within the internal cavity under visualization by means of the scope. In a preferred embodiment, a cutting tool is introduced into the patient\s left atrium from a right portion of the patient\s chest to remove the patient\s mitral valve. A replacement valve is then introduced through an intercostal space in the right portion of the chest and through the internal penetration in the heart, and the replacement valve is attached in the mitral valve position.
A method of closed-chest replacement of a heart valve in a valve position in a patient\s heart, the method comprising: establishing cardiopulmonary bypass by withdrawing blood from a major vein in the patient, oxygenating the blood, and returning the blood after oxygenation to a major artery in the
A method of closed-chest replacement of a heart valve in a valve position in a patient\s heart, the method comprising: establishing cardiopulmonary bypass by withdrawing blood from a major vein in the patient, oxygenating the blood, and returning the blood after oxygenation to a major artery in the patient; arresting the patient\s heart; forming a plurality of percutaneous intercostal penetrations in the patient\s chest, each of the percutaneous intercostal penetrations being within an intercostal space between two adjacent ribs; viewing the patient\s heart through a scope extending through a first of said percutaneous intercostal penetrations in the patient\s chest; forming an internal penetration through a wall of the patient\s heart using a cutting tool introduced through one of said percutaneous intercostal penetrations in the patient\s chest; locating a valve position in the heart; positioning a replacement valve through one of said plurality of percutaneous intercostal penetrations in the patient\s chest; using an elongated instrument positioned in one of said percutaneous intercostal penetrations to position the replacement valve through the internal penetration into a chamber of the heart, the elongated instrument having a length sufficient to reach the valve position from outside of the patient\s chest; and securing the replacement valve in the valve position in the heart; wherein all surgical manipulations are performed from outside of the patient\s chest.
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