Patent application number | Description | Published |
20100240952 | ENDOSCOPY METHOD AND ENDOSCOPE - With an endoscope including a long, thin inserted portion that is inserted into the body of a patient, securing means for securing the inserted portion to tissue inside the body, the securing means being provided at least at a distal-end portion of the inserted portion, an observation optical system that is provided at the inserted portion and that acquires an image of the tissue, and observation-distance adjusting means for adjusting the distance between the observation optical system and a surface of the tissue, it is possible to attain a stable field of view without having to stop the pulsation or the like of the heart or other tissue. | 09-23-2010 |
20100280539 | ENDOSCOPIC HEART SURGERY METHOD - It is an object to provide an endoscopic heart surgery method with which it is possible to observe an endoscopic image with a stable field of view in the pericardial space. Provided is an endoscopic heart surgery method including an inserting step of inserting an inserted portion of an endoscope into a body from the subxiphoid area and inserting the inserted portion into the pericardial space by penetrating the pericardium in the vicinity of the heart apex; a moving step of advancing the inserted portion toward the base of the heart so that the inserted portion passes through the roof of the pericardial space and is moved toward the heart apex to a treated area in the pericardial space; and an observing step of observing the treated area with the endoscope. | 11-04-2010 |
20100331619 | ENDOSCOPIC HEART SURGERY METHOD - It is an object to provide an endoscopic heart surgery method with which it is possible to observe an endoscopic image with a stable field of view in the pericardial space. Provided is an endoscopic heart surgery method including an inserting step of inserting an inserted portion of an endoscope into a body from the subxiphoid area and inserting the inserted portion into the pericardial space by penetrating the pericardium in the vicinity of the heart apex; a moving step of advancing the inserted portion toward the base of the heart so that the inserted portion passes through the vicinity of the roof of the pericardial space and is moved toward the heart apex to a treated area in the pericardial space; and an observing step of observing the treated area with the endoscope. | 12-30-2010 |
20110071342 | SPACE ENSURING DEVICE - In a pericardioscopic procedure, without providing an endoscope or surgical instrument with special space ensuring means and without unnecessarily dilating the pericardial space, a space necessary for operation of the endoscope or surgical instrument is ensured, so that maneuverability is improved while suppressing complications. Provided is a space ensuring device comprising: a pericardium pressing part for pressing a pericardium from the pericardial space side; a heart pressing part for pressing the surface of a heart from the pericardial space side; and an interconnecting part interconnecting the pericardium pressing part and the heart pressing part, wherein the interconnecting part generates the resilient force enabling expansion against a pressure applied by a pericardium and a heart so as to ensure a space between the pericardium pressing part and the heart pressing part. | 03-24-2011 |
20110184378 | TREATMENT INSTRUMENT AND TREATMENT METHOD - A procedure of positioning a treatment part at various sites on an organ is facilitated, and the positioning thereof can be stably maintained for treatment with accurate positioning. A treatment instrument includes a rigid rod-shaped insertion section having a treatment part at a distal end thereof and a manipulating section secured to a proximal end of the insertion section and gripped and manipulated by an operator. The insertion section includes a main body extending in a straight line, a first curved portion disposed at a distal end of the main body and curved in one direction with respect to the main body, and a second curved portion disposed on a distal side of the first curved portion and curved in a direction opposite to the direction in which the first curved portion is curved. The treatment part is inclined with respect to the longitudinal axis of the main body. | 07-28-2011 |
20110190710 | THERAPEUTIC FLUID INJECTION DEVICE - Therapeutic solution of an amount corresponding to a plurality of injections is injected with the distal end kept inserted in the pericardial cavity via an access port formed to penetrate under the xiphoid process. Provided is a therapeutic-solution injecting device ( | 08-04-2011 |
20120191090 | GUIDE DEVICE - Provided is a guide device including a cylindrical insertion part that is inserted into a body and that opens near a distal end thereof and on a proximal side thereof, a perforating part that is disposed at the distal end of the insertion part and that perforates tissue, a moving part disposed near the distal end of the insertion part so as to be displaceable between a nearby position near the insertion part and a farther position farther away from the insertion part than the nearby position, a biasing mechanism that biases the moving part in a direction away from the insertion part, and a displacement-detecting mechanism that detects displacement of the moving part in the body. | 07-26-2012 |
20120203066 | ENDOSCOPE, GUIDE UNIT, GUIDE WIRE, MEDICAL-DEVICE GUIDING SYSTEM, AND MEDICAL-DEVICE GUIDING METHOD - An endoscope and a surgical instrument are easily manipulated to desired positions and orientations independently while the state of treatment with the surgical instrument can be easily observed using an endoscopic image. Provided is a medical-device guiding method comprising a U-shape forming step of placing both ends of a guide wire outside the pericardium and placing the guide wire, with an intermediate portion curved in a substantially U-shape in the pericardial cavity; an endoscope inserting step of inserting an endoscope into the pericardial cavity along the guide wire from one end of the ends placed outside the pericardium in the U-shape forming step; a guide-unit inserting step of inserting the guide unit into the pericardial cavity along the guide wire from the other of the ends placed outside the pericardium in the U-shape forming step; and an opposing step of opposing the distal end portions of the endoscope and the guide unit, which are inserted into the pericardial cavity in the endoscope inserting step and the guide-unit inserting step, respectively, at intermediate positions of the guide wire. | 08-09-2012 |
20130027531 | OPERATION METHOD OF ENDOSCOPE - Disclosed is an operation method of an endoscope, the method comprising: a sheath insertion step of percutaneously inserting at least one sheath in a pericardial cavity of a heart; an insertion step of inserting a rigid scope in the sheath; a view field securing step for securing the view field for a surgical site within the pericardial cavity; a guide step for guiding the rigid scope to the surgical site; and an observation step of observing the surgical site with the rigid scope. | 01-31-2013 |
20140046343 | GUIDE SHEATH AND GUIDE SHEATH SYSTEM - Provided is a guide sheath that is prevented from coming out of a body cavity so as to allow for stable operation. A tubular guide sheath that guides an insertion section of a medical device to be inserted into a body cavity includes a base-end opening that is provided at a base end of the guide sheath and into which the insertion section is inserted; a distal-end opening that is provided at a distal end of the guide sheath; a flexible bent section that is provided at the distal end of the guide sheath and is elastically bent; and an exit opening that is provided in an outer side surface of the bent section and from which the insertion section extends out. | 02-13-2014 |
20140148647 | ENDOSCOPE - An endoscope reduces a diameter of an insertion portion, and cleanses an observation optical system with a guide wire being inserted. The endoscope includes: an elongated insertion portion to be inserted into a body cavity; an observation optical system at a distal end of the insertion portion to collect light from a subject; a channel portion formed in a longitudinal direction of the insertion portion, through which a fluid is passed and a guide wire is inserted; a seal portion in the channel portion to seal a gap between the channel portion and the guide wire where the guide wire is inserted through the channel portion; and an opening portion on a proximal end side of the seal portion to discharge a fluid flowing through the channel portion toward the observation optical system. | 05-29-2014 |