Abstract: An adhesion promotion device is disclosed, which is capable of reducing risk factors of an anastomotic leakage after surgery. The adhesion promotion device has a main body portion disposed between biological organs serving as a joint object. The main body portion has a first region and a second region formed along an outer edge of the first region. The second region includes an adhesion promotion portion that promotes adhesion of a biological tissue. The first region includes a holding portion having a holding force with respect to the biological tissue which is stronger than that of the adhesion promotion portion.

Abstract: A catheter body of a guiding catheter configured to be introduced into the renal artery, the catheter body including a plurality of abutting portions abutting at least two sites of the inner wall of the aorta on the abdominal side relative to the heart when the distal portion is disposed in the renal artery. A method for using a guiding catheter for the renal artery including providing the guiding catheter for the renal artery; inserting the guiding catheter from an artery in the arm and disposing a distal portion of the guiding catheter in the renal artery via the aorta; and causing the plurality of abutting portions to abut the inner wall of sections further on the abdominal side than the heart, in the aorta.

Abstract: An air removal mechanism includes a body having a hollow portion capable of storing a liquid. In a state where the body is mounted on an introducer sheath, a medical device to be inserted into the introducer sheath is insertable via the hollow portion. The body has an injection path which communicates with the hollow portion and on which an outlet is open toward a valve body.

Abstract: A discharge device and method are disclosed that can discharge a discharge substance with a desired discharge amount at a desired flow rate. A storage unit provided in a discharge device includes a storage space which can store a discharge substance, and a discharge section which can discharge the discharge substance stored in the storage space toward the proximal side of a main body in an axial direction, and is configured to be capable of expanding deformation and contracting deformation in response to introduction and discharge of the discharge substance.

Abstract: Disclosed herein is a medical instrument used for harvesting biological tissues of a predetermined biological organ and a medical system. The medical instrument includes: a main body portion that has an elongated shape and has a distal part having a helical groove formed in an outer surface, a fluid lumen through which fluid is allowed to flow and pass, and a through-hole communicating with the fluid lumen and the outer surface of the distal part, at least part of the distal part being stuck into the biological organ; and a tubular member that has an insertion lumen into which the main body portion is inserted movably in axial direction and forms a gap through which fluid is allowed to flow and pass between the main body portion and the tubular member in a state in which the main body portion is inserted in the insertion lumen.

Abstract: Methods of forming and/or manufacturing polymeric stents are disclosed. Polymeric stents are also disclosed.

Abstract: A method of removing/retrieving calculus in a ureteral lumen involves moving a ureteral plug part along the ureter lumen to position the ureteral plug part between the calculus and the kidney. The method additionally includes occluding the ureteral lumen at a location at which the ureteral plug part is located, and introducing fluid into the ureter lumen at a point between the location of the occlusion and the calculus so that the fluid washes the calculus toward the bladder. Another aspect involves a method in which an drainage tube is positioned in the ureteral lumen so that a ureteral plug part and an irrigation port are positioned distally of the calculus while an operation part of the drainage tube is positioned proximally of the calculus. The method includes occluding the ureteral lumen, washing the ureteral lumen, and releasing the occlusion and uncoupling the operation part from the ureteral plug.

Abstract: A discharge device and method are disclosed that can discharge a discharge substance with a desired discharge amount at a desired flow rate. A storage unit provided in a discharge device includes a storage space which can store a discharge substance, and a discharge section which can discharge the discharge substance stored in the storage space toward the proximal side of a main body in an axial direction, and is configured to be capable of expanding deformation and contracting deformation in response to introduction and discharge of the discharge substance.

Abstract: A catheter body of a guiding catheter configured to be introduced into the renal artery, the catheter body including a plurality of abutting portions abutting at least two sites of the inner wall of the aorta on the abdominal side relative to the heart when the distal portion is disposed in the renal artery. A method for using a guiding catheter for the renal artery including providing the guiding catheter for the renal artery; inserting the guiding catheter from an artery in the arm and disposing a distal portion of the guiding catheter in the renal artery via the aorta; and causing the plurality of abutting portions to abut the inner wall of sections further on the abdominal side than the heart, in the aorta.

Abstract: A biopsy system includes a tomographic image pick-up device which is insertable into a living body to pick-up a tomographic image of a bioptic target part in the living body to be subjected to biopsy, a guide wire configured to puncture the bioptic target part in the condition where the tomographic image obtained by the tomographic image pick-up device is being observed; and a biopsy device which is inserted along the guide wire to the bioptic target part in the living body after withdrawal of the tomographic image pick-up device out of the living body and by which tissue of the bioptic target part is sampled. The guide wire remains in the living body in the state of puncturing the bioptic target part even after the withdrawal of the tomographic image pick-up device.

Abstract: A monitoring device includes an expansion body that is delivered into a vessel, and that expands at a predetermined position, and an electrode that is attached to the expansion body, and that detects neural activities of a nerve located outside the vessel by coming into contact with an inner wall of the vessel when the expansion body expands.

Abstract: Disclosed herein is a medical instrument used for harvesting biological tissues of a predetermined biological organ and a medical system. The medical instrument includes: a main body portion that has an elongated shape and has a distal part having a helical groove formed in an outer surface, a fluid lumen through which fluid is allowed to flow and pass, and a through-hole communicating with the fluid lumen and the outer surface of the distal part, at least part of the distal part being stuck into the biological organ; and a tubular member that has an insertion lumen into which the main body portion is inserted movably in axial direction and forms a gap through which fluid is allowed to flow and pass between the main body portion and the tubular member in a state in which the main body portion is inserted in the insertion lumen.

Abstract: Disclosed herein is a medical elongated body including: a first channel through which a first liquid flows; a second channel through which a second liquid different from the first liquid in liquid composition flows; a mixing section at which the first channel and the second channel join and in which the first liquid and the second liquid are mixed; a gas channel through which a gas flows; a gas mixing-in section adapted to mix the gas into at least one of the first liquid flowing through the first channel and the second liquid flowing through the second channel or into a liquid mixture formed by mixing in the mixing section; a foaming member adapted to convert the liquid containing the gas mixed therein to a foamed material to be discharged; and a discharge port through which the foamed material to be discharged is discharged.

Abstract: A method of removing/retrieving calculus in a ureteral lumen involves moving a ureteral plug part along the ureter lumen to position the ureteral plug part between the calculus and the kidney. The method additionally includes occluding the ureteral lumen at a location at which the ureteral plug part is located, and introducing fluid into the ureter lumen at a point between the location of the occlusion and the calculus so that the fluid washes the calculus toward the bladder. Another aspect involves a method in which an drainage tube is positioned in the ureteral lumen so that a ureteral plug part and an irrigation port are positioned distally of the calculus while an operation part of the drainage tube is positioned proximally of the calculus. The method includes occluding the ureteral lumen, washing the ureteral lumen, and releasing the occlusion and uncoupling the operation part from the ureteral plug.

Abstract: A urethral stricture treatment method is disclosed that inhibits recurrence of urethral stricture by imparting an epithelial function to a treatment portion formed by treating scar tissue. The urethral stricture treatment method can include a treatment step of treating scar tissue by using a treatment tool transurethrally inserted into a urethra and forming a treatment portion to which an epithelial function can be imparted, a confirmation step of confirming whether or not the treatment portion has been formed by using a diagnostic tool transurethrally inserted into the urethra, and an assisting step of imparting the epithelial function to the treatment portion by using an assisting means transurethrally inserted into the urethra.

Abstract: A urethral stricture treatment method is disclosed for inhibiting recurrence of urethral stricture by imparting an epithelial function to a treatment portion formed by treating scar tissue. The urethral stricture treatment method can include an insertion step of transurethrally inserting a predetermined protective tool into urethra and disposing the protective tool in a treatment portion formed by treating scar tissue, and a maintenance step of maintaining a state in which at least a portion of the protective tool comes into contact with the treatment portion and imparting an epithelial function to the treatment portion.

Abstract: A medical instrument is disclosed, which includes an elongated member having a plurality of joint members arranged side by side in an axial direction, the elongated member taking a first form that is bendable in a direction intersecting with the axial direction when the joint members are arranged with gaps therebetween in the axial direction and taking a second form having rigidity when the distance between the joint members is reduced in the axial direction to be narrower than the distance in the first form, a gripper capable of gripping an object to be gripped, and a first push-pull member and a second push-pull member each movable along the axial direction of the elongated member. Operating the first push-pull member and the second push-pull member enables the elongated member to be switched between the bendable first form and the rigid second form and enables an opening-closing operation of the gripper.

Abstract: A medical device includes a cover member and a holding member. The cover member includes: an accommodating section so provided as to be able to accommodate either one of a right lung and a left lung of a living body and freely deformable according to inflation and deflation of a lung which is accommodated in the state of accommodating the lung therein; and an opening through which the lung is introduced into the accommodating section. The holding member is provided at the opening of the cover member, deforms the aperture shape of the opening by having its oppositely located arbitrary portions brought closer to or away from each other, and so functions that the aperture area of the opening is thereby held constant before and after the deformation.

Abstract: A biopsy system includes a tomographic image pick-up device which is insertable into a living body to pick-up a tomographic image of a bioptic target part in the living body to be subjected to biopsy, a guide wire configured to puncture the bioptic target part in the condition where the tomographic image obtained by the tomographic image pick-up device is being observed; and a biopsy device which is inserted along the guide wire to the bioptic target part in the living body after withdrawal of the tomographic image pick-up device out of the living body and by which tissue of the bioptic target part is sampled. The guide wire remains in the living body in the state of puncturing the bioptic target part even after the withdrawal of the tomographic image pick-up device.

Abstract: Disclosed herein is a medical elongated body including: a first channel through which a first liquid flows; a second channel through which a second liquid different from the first liquid in liquid composition flows; a mixing section at which the first channel and the second channel join and in which the first liquid and the second liquid are mixed; a gas channel through which a gas flows; a gas mixing-in section adapted to mix the gas into at least one of the first liquid flowing through the first channel and the second liquid flowing through the second channel or into a liquid mixture formed by mixing in the mixing section; a foaming member adapted to convert the liquid containing the gas mixed therein to a foamed material to be discharged; and a discharge port through which the foamed material to be discharged is discharged.