Patent
Endoscopically inserting surgical tool
| العنوان: | Endoscopically inserting surgical tool |
|---|---|
| Patent Number: | 8,545,395 |
| تاريخ النشر: | October 01, 2013 |
| Appl. No: | 12/506441 |
| Application Filed: | July 21, 2009 |
| مستخلص: | An endoscopically inserting surgical tool is composed of an elongated flexible cord to be passed through a tool guide channel on an endoscope, and a tool action mechanism mounted on a fore distal end of the flexible cord to be projected out of the tool guide channel. The flexible cord has such a length that, when the tool action mechanism is projected out of a tool exit opening at the end of the tool guide channel, a proximal end portion of the flexible cord still remains outside and rearward of a tool entrance way which is provided on a manipulating head grip of the endoscope as an approach to the tool guide channel. A proximal end portion of the flexible cord is gripped in a rotary tool adjustor which is manipulable to turn the tool action mechanism clockwise or counterclockwise together with the flexible cord in the tool guide channel of the endoscope. |
| Inventors: | Akahoshi, Kazuya (Fukuoka, JP); Akahane, Hidefumi (Saitama, JP) |
| Assignees: | FUJIFILM Corporation (Tokyo, JP) |
| Claim: | 1. An endoscopically inserting surgical tool having a tool action mechanism of said tool mounted at a distal end of a flexible cord to be placed in a tool guide channel of an endoscope through a tool entrance way on a manipulating head grip of said endoscope and projected out of a tool exit opening at a distal end of said tool guide channel, said tool action mechanism being actuated by way of a manipulation handle fixedly connected to a proximal end portion of said flexible cord, characterized in that: said flexible cord has a length such that a proximal end portion thereof remains outside and rearward of said tool entrance way to said tool guide channel when a fore distal end portion is projected out of said tool exit opening of said tool guide channel over a necessary length for performing a required function; said flexible cord being gripped in a rotary tool adjustor constituting an independent member from said manipulation handle, being provided in a position between said tool entrance way and said manipulation handle, apart from a connecting portion of said manipulation handle, on said manipulating head grip of said endoscope to turn said flexible cord clockwise or counterclockwise within said tool guide channel to adjust said action mechanism of said tool into an aimed radial direction; and said rotary tool adjustor is composed of a tubular outer shell internally defining a cord threading bore axially from rear to fore end thereof, and a clamp tube having a plural number of split clamp fingers to be brought into and out of frictional engagement with said flexible cord, said cord threading bore in said outer shell being tapered in such a way as to have a gradually reduced diameter toward said fore end, and said clamp tube having a tapered outer configuration in conformity with said cord threading bore of said outer shell; whereby said rotary tool adjustor is adjustable in a longitudinal direction of said flexible cord toward or away from said tool entrance way; wherein said proximal end portion of said flexible cord is led out of said tool entrance way through a plug member detachably fitted in at an outer end of said entrance way, and said rotary tool adjustor is rotatably set in position immediately on the outer side of said plug member; wherein said flexible cord includes a tubular flexible sleeve one end of which is fixed to a proximal end of said tool action mechanism and which extends to a distal end of said manipulation handle, and a tool manipulation wire slidably inserted into said flexible tube, wherein said manipulation handle includes a slider for fixing a proximal end of said tool manipulation wire and sliding said tool manipulation wire, and a shank portion to which said flexible cord is fixed and which has a slit formed in an axial direction, and wherein said slider is disposed slidably along said slit of said shank portion and said tool manipulation wire is slid by sliding said slider to actuate said total action mechanism. |
| Claim: | 2. An endoscopically inserting surgical tool as set forth in claim 1 , wherein said clamp fingers are each formed in an arcuate shape substantially in conformity in curvature with outside diameter of said flexible cord. |
| Claim: | 3. An endoscopically inserting surgical tool as set forth in claim 1 , wherein said outer shell of said rotary tool adjustor is provided with projecting grip surfaces on outer peripheral side. |
| Claim: | 4. An endoscopically inserting surgical tool as set forth in claim 1 , wherein said tool action mechanism is of a forceps including a pair of pivotally supported grasper members. |
| Current U.S. Class: | 600/104 |
| Patent References Cited: | 4945920 August 1990 Clossick 4967732 November 1990 Inoue 5066295 November 1991 Kozak et al. 5820546 October 1998 Ouchi 6015381 January 2000 Ouchi 6113586 September 2000 Ouchi 6235026 May 2001 Smith 6443909 September 2002 Ouchi 6520954 February 2003 Ouchi 6605077 August 2003 Whittier et al. 6890294 May 2005 Niwa et al. 6972017 December 2005 Smith et al. 7052495 May 2006 Smith 7169167 January 2007 Chu 7347816 March 2008 Niwa et al. 7727144 June 2010 Suzuki 7927271 April 2011 Dimitriou et al. 2001/0004676 June 2001 Ouchi 2003/0009854 January 2003 Shippert 2003/0028096 February 2003 Niwa et al. 2004/0210111 October 2004 Okada 2004/0236214 November 2004 Opie et al. 2005/0182292 August 2005 Suzuki 2009/0088600 April 2009 Meloul 103 56 018 July 2004 1 554 974 July 2005 1 808 118 July 2007 2 321 193 July 1998 9-299323 November 1997 WO 2007/136894 November 2007 |
| Other References: | Office Action issued in corresponding European Application No. 09009290.9-2310. cited by applicant Office Action dated Aug. 21, 2012 issued in Japanese Patent Application No. 2008-188225 (English translation is attached). cited by applicant |
| Primary Examiner: | Kasztejna, Matthew J |
| Attorney, Agent or Firm: | Birch, Stewart, Kolasch & Birch, LLP |
| رقم الانضمام: | edspgr.08545395 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |