Surgical method and medical device

• US 8,348,891 B2
• Filed: 09/16/2010
• Issued: 01/08/2013
• Est. Priority Date: 09/22/2009
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Sugahara, Michihiro
• Primary Examiner(s): SHUMATE, VICTORIA PEARL
• Application Number:
  US12/883,773
• Publication Number:
  US 20110190584A1
• Time in Patent Office: 845 Days
• Field of Search: 604/96.01, 60410101-10105, 604/103.05
• US Class Current: 604/101.04
• CPC Class Codes: A61B 1/00094 Suction openings
• CPC Class Codes: A61B 1/04 combined with photographic or television appliances
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00588 Rigid or stiff implements, e.g. made of several rigid parts linked by hinges
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/0061 Implements located only on one side of the opening
• CPC Class Codes: A61B 2017/12127 Double occlusion, e.g. for creating blood-free anastomosis site
• CPC Class Codes: A61M 2025/1047 having centering means, e.g. balloons having an appropriate shape
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/178 Syringes

Abstract

To perform treatment by readily introducing a device causing minimal invasion even where approach from the body surface is difficult, a medical device includes a guide that is inserted into a lumen; a first balloon at a distal end of the guide, connected to a first flow path extending to a proximal end of the guide; a second balloon on the guide, separated from the first balloon on the proximal-end side and connected to a second flow path extending to the proximal end of the guide; a third balloon extending along the guide from a point between the first balloon and the second balloon to the proximal end and having a port for supplying or discharging fluid at the proximal end; and a cleansing flow path having a discharge port between the first balloon and the second balloon and extending to the proximal end of the guide.

Claims

1. A medical device comprising:

a guide member that is inserted into a lumen;

a first balloon provided at a distal end of the guide member and connected to a first flow path extending to a proximal end of the guide member;

a second balloon provided on a sheath that is placed over the guide member at a point separated from the first balloon on the proximal-end side and connected to a second flow path extending to the proximal end of the sheath;

a third balloon extending along the guide member from a point between the first balloon and the second balloon to the proximal end and having a port for supplying or discharging fluid at the proximal end; and

a cleansing flow path having a discharge port between the first balloon and the second balloon and extending to the proximal end of the guide member.

2. A medical device according to claim 1, wherein the second balloon is provided on the sheath that is movable along a lengthwise direction of the guide member.

3. A medical device according to claim 2, further comprising a ring-shaped cover member that is attachable to and detachable from the outer circumferential surface of the second balloon and expandable in a radial direction in accordance with inflation of the second balloon.

4. A medical device according to claim 3, wherein the cover member is formed of a biodegradable material.

5. A medical device according to claim 1, wherein the third balloon is provided such that the third balloon is attachable to and detachable from the guide member.