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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0608339 (1990-11-02) |
| 발명자 / 주소 |
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| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 713 인용 특허 : 0 |
A technique for invaginating the esophagus at the gastroesophageal junction is disclosed, as well as an invagination device useful in the described technique. The invagination device includes an introducer guide which has an outside diameter approximating that of the esophagus and a plurality of nee
A technique for invaginating the esophagus at the gastroesophageal junction is disclosed, as well as an invagination device useful in the described technique. The invagination device includes an introducer guide which has an outside diameter approximating that of the esophagus and a plurality of needle-receiving lumens extending to its outer diametric surface. The invagination device also has an engagement assembly which includes 10 needles, each having a retracted position in which they lie within the needle-receiving lumens of the introducer guide, and an extended position in which they extend out of the lumens and project radially from the guide for engagement with the esophagus at the gastroesophageal junction. The invagination device is introduced transorally into the esophagus, its engagement assembly is activated to place the needles in their extended position in engagement with the esophagus, and the engaged invagination device is advanced the toward the stomach to fold the attached esophagus beyond the gastroesophageal junction. A remotely operable fastening assembly, which has been introduced into the stomach through an operating channel/insufflation port, is then operated to fasten the invaginated gastroesophageal junction to the surrounding involuted fundic wall. Finally, the needles are retracted back into their needle-receiving lumens and the invagination device and the fastening assembly are removed from the body of the patient. This minimally-invasive technique accomplishes the formation of a new valve between the esophagus and stomach, thus preventing acid reflux.
A method for invaginating the gastroesophageal junction of a patient, said method comprising the steps of: introducing an invagination device transorally into the esophagus, the invagination device including an introducer guide and an engagement assembly; the introducer guide having an outside diame
A method for invaginating the gastroesophageal junction of a patient, said method comprising the steps of: introducing an invagination device transorally into the esophagus, the invagination device including an introducer guide and an engagement assembly; the introducer guide having an outside diameter approximating that of the esophagus; the engagement assembly including a plurality of needles, the needles having a retracted position in which the needles lie within the introducer guide, and an extended position in which the needles extend out of the introducer guide, projecting radially therefrom, the engagement assembly further including means for projecting the needles out of the introducer guide and into engagement with the esophagus in the vicinity of the gastroesophageal junction; activating the engagement assembly to place the needles in their extended position in engagement with the esophagus in the vicinity of the gastroesophageal junction; advancing the engaged invagination device toward the stomach to invaginate the gastroesophageal junction into the stomach, involuting the surrounding fundic wall; introducing a remotely operable fastening assembly into the stomach and operating the fastening assembly to secure the invaginated gastroesophageal junction to the surrounding involuted fundic wall; deactivating the engagement assembly to retract the extended needles from engagement and back into the needle-receiving lumens of the introducer guide; and removing the invagination device and the fastening assembly from the body of the patient.
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