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US2952206A - Fuse connector - Google Patents

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Publication number
US2952206A
US2952206A US65826957A US2952206A US 2952206 A US2952206 A US 2952206A US 65826957 A US65826957 A US 65826957A US 2952206 A US2952206 A US 2952206A
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Prior art keywords
cord
main
branch
device
cords
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Vernon E Becksted
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Austin Powder Co
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Austin Powder Co
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/043Connectors for detonating cords and ignition tubes, e.g. Nonel tubes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/39Cord and rope holders
    • Y10T24/3916One-piece

Description

v. E. BECKSTED FUSE CONNECTOR Sept. 13, 1960 Filed May lO, 1957 INVENTOR. i VaaNoN E. Becxsrsn FUSE CONNECTOR Vernon E. Becksted, Bedford, Ghio, assigner to Austin Powder Company, Cleveland, Ohio, a corporation of Ohio Filed May 10, 1957, Ser. No. 658,269

3 Claims. (Cl. 102-27) This invention relates generally to a device for electively securing a pair of detonating fuse cords in operative relation with one crossing the other so that one of the cords can be operated by concussion from the other. Detonating fuse cords in the form of flexible tubes containing explosive powders are in common use, yand it is customary to place them in such manner that a branch cord is secured tightly `against a main cord so that the branch cord is detonated by concussion from the main cord. The device of this invention is especially adapted for this purpose in that it is capable of being very quickly applied to effectively secure the branch cords in operative engagement with the main cord. Another important feature embodied in the device of this invention is the relative ease of manual application of the device without visual assistance which makes it possible to apply the connecting device in mines or other locations where illumination is meager or absent.

Heretofore, such devices have been in the form of metal clips or the like which have not been entirely satisfactory. It is possible for the metallic clip to sever the branch line without resulting in the desired detonating action. Furthermore, the metallic clip is apt to disintegrate upon detonation and injure persons or equipment in the immediate vicinity. Other advantageous features of the device of this invention relate to the improved construction of the device which includes a portion that encompasses the main and branch cords at their intersection in such manner as to prevent short-circuiting or undesired severance of the branch cord without detonating action. The construction permits easy threading of the branch cords through the `device into clamping relation with the main cord and is preferably made of plastic material having characteristics which are hereinafter more fully described. Still further advantages relate to the economy of manufacture 'and compact packing of the devices for economical shipment in large quanities.

Briefly, the foregoing advantages and objectives are accomplished in accordance with this invention by providing a tubular member made of suitable plastic material wherein one end is provided with a slit having registering apertures which are adapted to receive a main trunk cord. In operation, a branch cord passed through the tubular device transversely to the main cord at one side and drawn back through the tubular device from the other side of the main cord after which it may be pulled tightly to provide a positive clamping engagement between the main cord and the branch cord so that the branch cord will easily detonate by concussion from the main cord.

In the drawings:

Figure 1 illustrates in elevation a plurality of branch cords held in engagement with a main cord by the connecting devices of this invention;

Figure 2 is a perspective view of a preferred form of the connecting device as applied to two crossing cords shown in dotted lines;

Figure 3 is a vertical section through the connecting 2,952,206 Patented Sept. 13, 1960 device illustrating an intermediate stage in the application of the device to a branch cord;

And Figure 4 is `a vertical section through the connecting device `as finally applied to the branch cord.

Referring now, more particularly, to Figures l and 2 of the drawings, the connecting device of .this invention is shown 'as embodying a tubular member 10 made of suitable plastic material `such as poly-ethylene having physical characteristics of relatively high strength and resistlance to sear and deteriora-tion in outside use. One end of the tube l0 is divided by a slot 11 which extends axially from that end for a short distance and terminates in diametrically opposed wall portions of the tube in a pair of registering apertures such as 12 which are adapted to receive the main detonating cord A transversely therethrough as shown in Figures 1 and 2. The slot 1'1 in the tubular mem-ber 10 is provided with .beveled or outwardly diverging portions at the extremity of the tube which receives and guides the cord A into the registered apertures 12 at the base of the slot. This provides for relative ease of manual application of the connecting device to the main cord, even ywithout visual assistance.

After the tubular connecting device 10 is applied to the main trunk cord A, the procedure is to then thread the branch cord B through the device in position where it can ybe ldetonated by concussion from the main cord. This is accomplished `as best shown in Figures 3 and 4 by iirst inserting the branch cord B up through the nonslotted end `of the tubular connecting device 10 transversely to the axis of the main cord, as -best shown in Figure 3. The branch cord B is then bent over the main cord A and is drawn downwardlythrough the non-slotted end of the connecting device, as best shown in Figure 4; after which the ends of the branch cord B are pulled tightly so as to closely engage the underlying portion of the main trunk cord A.

As shown Iin Figure 1, in usage, the main cord A usually lies for a considerable distance along the ground, and the branch cords B and B are disposed transverse to the main cord at spaced distances along the main cord. The connecting device of this invention is easily applied to connect a plurality of such branch cords to the main cord by simply placing the ydevice beneath the main cord A and raising it upwardly to receive the main cord in the apertured slot 11; thereafter the branch cords B are passed upwardly through the tubular device, as hereinbefore described, looped over the main cord, :and then drawn taut so that the surface of each branch cord is in intimate engagement with the surface of the main cord. It is readily apparent that, once so connected, the branch cords B are disposed in `direct operative engagement with the main cord A so that they can be detonated through concussion upon detonation of the main cord. There is no danger of the cords being severed by the device and disintegration of the plastic material of the connecting device upon detonation of the cords is not likely to injure persons or equipment in the immediate vicini-ty. The connecting devices are very economically manufactured and, because of their simplicity in construction and small size, they can be readily packed in a compact container for economy in shipment. Thereafter, the devices can be readily applied and used as expendable items in the field.

l have shown and described what I consider to be the preferred embodiment of my invention, along with suggestions of modified forms and usages, and it will be obvious to those skilled in the art that other changes and modications may be made without departing from the scope of my invention as defined by the appended claims.

I claim:

1. In combination, ya main detonating cord, a branch detonating cord, and a connecting device for readily securing said branch detonating cord in looped abutting and positive ignitive relation about said main cord, said device comprising a tubular-like member of plastic material, such as polyethylene, said member having a pair of oppositely disposed slots extending lengthwise and inwardly fro-m one end of said member `and receiving .therein |at the inner ends thereof said main cord in transversely extending relation With respect to s-aid member, said slots providing opposed nger portions resiliently gripping said main cord to retain it in assembled relation with said member, the hollow interior of said memiber defining a passage open `at both ends, an end pontion of said -branch cord -being fed axially through said passage, looped over said main cord, and then fed back through said passage until the loop portion of ysaid branch cord is drawn into intimate abutting relation with the underlying surface of said main oord, the transverse width of the hollow interior of said member at the inner ends of said slots being of such dimension that said loop portion engages in conned relation opposite sides of the interior surface of said member and is retained in intimate abutting ignitive relation with the underlying surface of `said main cord.

2. The combina-tion .in accordance with claim 1 wherein the outer end of each of said slots is ared outwardly to provide inwardly converging guide surfaces Ifor readily guiding the main detonating `cord into the inner end of the respective of said slots.

3. The combination in accordance with claim 1 wherein each of said slots is of a smallerV ltransverse width than the Width of the main cord received therein, each of said slots at its inner end opening into an enlarged aperture extending transversely through said member, said enlarged apertures being axially aligned and receiving the main detonating cord therethrough, said apertures being of a coniiguration complementary-tto that ofthe main detonating cord.

References Cited in the iile of this patent UNITED STATES PATENTS 630,837 Y, Anderson etal Aug. 15, 1899 1,460,333 Aime June 26|, 1923 l1,698,962 Olin -Jan. 15, 1929 1,887,122 Duffy Nov. 8, 1932 2,037,620 Dewhurst et al Apr. 14, Y1936 2,587,694 Chalmers et al Mar. 4, 1952 2,640,236 Hume June 2, 1953 2,715,365 Godchaux et al Aug. 16, 1955 FOREIGN PATENTS 476,105 Great Britain Dec. 1, 1937

US2952206A 1957-05-10 1957-05-10 Fuse connector Expired - Lifetime US2952206A (en)

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Cited By (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184880A (en) * 1961-11-30 1965-05-25 Water Gremlin Co Line attachment and safety device for fishing tackle
US3205818A (en) * 1963-08-02 1965-09-14 Du Pont Connector for explosive cords
US3292298A (en) * 1964-10-12 1966-12-20 Arthur J Mullikin Fishhook guard and leader aligning device
US3349706A (en) * 1966-07-15 1967-10-31 Du Pont Tailless connector
US3510827A (en) * 1967-11-14 1970-05-05 Etc Inc T-tap connectors
US3765060A (en) * 1972-08-04 1973-10-16 P Sharick Line fastening device
US3993001A (en) * 1975-08-18 1976-11-23 Tetra Plastics, Inc. Explosive expansion means for attaching tubes to tube sheets
US4024817A (en) * 1975-06-02 1977-05-24 Austin Powder Company Elongated flexible detonating device
US4495867A (en) * 1982-06-18 1985-01-29 E. I. Du Pont De Nemours And Company Assembly for initiating explosives with low-energy detonating cord
US4681036A (en) * 1986-01-07 1987-07-21 Bintech (Pty) Ltd. Delay starters
US4714018A (en) * 1985-07-01 1987-12-22 Nitro Nobel Ab Method and means for connecting fuses
US4821645A (en) * 1987-07-13 1989-04-18 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US4823794A (en) * 1982-07-12 1989-04-25 Pierce William S Surgical pledget
US4953464A (en) * 1987-07-13 1990-09-04 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US5086702A (en) * 1990-04-12 1992-02-11 Atlas Powder Company Modular blasting system
EP0500512A2 (en) * 1991-02-18 1992-08-26 Nitro Nobel Ab Connecting block for ignition devices
US5162606A (en) * 1990-04-12 1992-11-10 Atlas Powder Company Modular blasting system
US5204492A (en) * 1991-10-30 1993-04-20 Ici Explosives Usa Inc. Low noise, low shrapnel detonator assembly for initiating signal transmission lines
US5463955A (en) * 1994-02-08 1995-11-07 Ici Canada Inc. Transmission tube connector
WO1997025298A1 (en) * 1996-01-11 1997-07-17 The Ensign-Bickford Company Detonators having multiple-line input leads
US5659149A (en) * 1996-01-18 1997-08-19 The Ensign-Bickford Company Secure connector for blast initiation signal transfer
US5682704A (en) * 1996-01-25 1997-11-04 Trent; Billy E. Fish hook shroud
US5703320A (en) * 1996-01-18 1997-12-30 The Ensign Bickford Company Connector for blast initiation system
US5708228A (en) * 1996-01-11 1998-01-13 The Ensign-Bickford Company Method and apparatus for transfer of initiation signals
US5791022A (en) * 1996-01-29 1998-08-11 Bohman; Lars Cord locking mechanism
US6006671A (en) * 1995-02-24 1999-12-28 Yunan; Malak Elias Hybrid shock tube/LEDC system for initiating explosives
US6131640A (en) * 1998-12-18 2000-10-17 Judkins; Ren Length adjustable bottomrail for venetian type blind
US20100249700A1 (en) * 2009-03-27 2010-09-30 Ethicon Endo-Surgery, Inc. Surgical instruments for in vivo assembly
US7815662B2 (en) * 2007-03-08 2010-10-19 Ethicon Endo-Surgery, Inc. Surgical suture anchors and deployment device
US8029504B2 (en) 2007-02-15 2011-10-04 Ethicon Endo-Surgery, Inc. Electroporation ablation apparatus, system, and method
US8037591B2 (en) 2009-02-02 2011-10-18 Ethicon Endo-Surgery, Inc. Surgical scissors
US8070759B2 (en) 2008-05-30 2011-12-06 Ethicon Endo-Surgery, Inc. Surgical fastening device
US8075572B2 (en) 2007-04-26 2011-12-13 Ethicon Endo-Surgery, Inc. Surgical suturing apparatus
US8100922B2 (en) 2007-04-27 2012-01-24 Ethicon Endo-Surgery, Inc. Curved needle suturing tool
US8114072B2 (en) 2008-05-30 2012-02-14 Ethicon Endo-Surgery, Inc. Electrical ablation device
US8114119B2 (en) 2008-09-09 2012-02-14 Ethicon Endo-Surgery, Inc. Surgical grasping device
US8157834B2 (en) 2008-11-25 2012-04-17 Ethicon Endo-Surgery, Inc. Rotational coupling device for surgical instrument with flexible actuators
US8172772B2 (en) 2008-12-11 2012-05-08 Ethicon Endo-Surgery, Inc. Specimen retrieval device
US8211125B2 (en) 2008-08-15 2012-07-03 Ethicon Endo-Surgery, Inc. Sterile appliance delivery device for endoscopic procedures
US8241204B2 (en) 2008-08-29 2012-08-14 Ethicon Endo-Surgery, Inc. Articulating end cap
US8252057B2 (en) 2009-01-30 2012-08-28 Ethicon Endo-Surgery, Inc. Surgical access device
US8262563B2 (en) 2008-07-14 2012-09-11 Ethicon Endo-Surgery, Inc. Endoscopic translumenal articulatable steerable overtube
US8262680B2 (en) 2008-03-10 2012-09-11 Ethicon Endo-Surgery, Inc. Anastomotic device
US8262655B2 (en) 2007-11-21 2012-09-11 Ethicon Endo-Surgery, Inc. Bipolar forceps
US8317806B2 (en) 2008-05-30 2012-11-27 Ethicon Endo-Surgery, Inc. Endoscopic suturing tension controlling and indication devices
US8337394B2 (en) 2008-10-01 2012-12-25 Ethicon Endo-Surgery, Inc. Overtube with expandable tip
US8353487B2 (en) 2009-12-17 2013-01-15 Ethicon Endo-Surgery, Inc. User interface support devices for endoscopic surgical instruments
US8361112B2 (en) 2008-06-27 2013-01-29 Ethicon Endo-Surgery, Inc. Surgical suture arrangement
US8361066B2 (en) 2009-01-12 2013-01-29 Ethicon Endo-Surgery, Inc. Electrical ablation devices
US8403926B2 (en) 2008-06-05 2013-03-26 Ethicon Endo-Surgery, Inc. Manually articulating devices
US8409200B2 (en) 2008-09-03 2013-04-02 Ethicon Endo-Surgery, Inc. Surgical grasping device
US8480657B2 (en) 2007-10-31 2013-07-09 Ethicon Endo-Surgery, Inc. Detachable distal overtube section and methods for forming a sealable opening in the wall of an organ
US8480689B2 (en) 2008-09-02 2013-07-09 Ethicon Endo-Surgery, Inc. Suturing device
US8496574B2 (en) 2009-12-17 2013-07-30 Ethicon Endo-Surgery, Inc. Selectively positionable camera for surgical guide tube assembly
US8506564B2 (en) 2009-12-18 2013-08-13 Ethicon Endo-Surgery, Inc. Surgical instrument comprising an electrode
US8529563B2 (en) 2008-08-25 2013-09-10 Ethicon Endo-Surgery, Inc. Electrical ablation devices
US8568410B2 (en) 2007-08-31 2013-10-29 Ethicon Endo-Surgery, Inc. Electrical ablation surgical instruments
US8579897B2 (en) 2007-11-21 2013-11-12 Ethicon Endo-Surgery, Inc. Bipolar forceps
US8608652B2 (en) 2009-11-05 2013-12-17 Ethicon Endo-Surgery, Inc. Vaginal entry surgical devices, kit, system, and method
US8652150B2 (en) 2008-05-30 2014-02-18 Ethicon Endo-Surgery, Inc. Multifunction surgical device
US8679003B2 (en) 2008-05-30 2014-03-25 Ethicon Endo-Surgery, Inc. Surgical device and endoscope including same
US8771260B2 (en) 2008-05-30 2014-07-08 Ethicon Endo-Surgery, Inc. Actuating and articulating surgical device
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US8888792B2 (en) 2008-07-14 2014-11-18 Ethicon Endo-Surgery, Inc. Tissue apposition clip application devices and methods
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US9314620B2 (en) 2011-02-28 2016-04-19 Ethicon Endo-Surgery, Inc. Electrical ablation devices and methods
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US1460333A (en) * 1923-01-04 1923-06-26 Aime Luis Clothesline fastener
US1698962A (en) * 1922-09-16 1929-01-15 Western Cartridge Co Detonator package
US1887122A (en) * 1931-01-20 1932-11-08 Hercules Powder Co Ltd Connecter for cordeau bickford
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GB476105A (en) * 1936-05-01 1937-12-01 Stephen Bosworth Martin Improved tensioning device for guy-ropes to tents and the like
US2587694A (en) * 1949-09-23 1952-03-04 Canadian Safety Fuse Company L Fuse igniting and connecting device
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US1887122A (en) * 1931-01-20 1932-11-08 Hercules Powder Co Ltd Connecter for cordeau bickford
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Cited By (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184880A (en) * 1961-11-30 1965-05-25 Water Gremlin Co Line attachment and safety device for fishing tackle
US3205818A (en) * 1963-08-02 1965-09-14 Du Pont Connector for explosive cords
US3292298A (en) * 1964-10-12 1966-12-20 Arthur J Mullikin Fishhook guard and leader aligning device
US3349706A (en) * 1966-07-15 1967-10-31 Du Pont Tailless connector
US3510827A (en) * 1967-11-14 1970-05-05 Etc Inc T-tap connectors
US3765060A (en) * 1972-08-04 1973-10-16 P Sharick Line fastening device
US4024817A (en) * 1975-06-02 1977-05-24 Austin Powder Company Elongated flexible detonating device
US3993001A (en) * 1975-08-18 1976-11-23 Tetra Plastics, Inc. Explosive expansion means for attaching tubes to tube sheets
US4495867A (en) * 1982-06-18 1985-01-29 E. I. Du Pont De Nemours And Company Assembly for initiating explosives with low-energy detonating cord
US4823794A (en) * 1982-07-12 1989-04-25 Pierce William S Surgical pledget
US4714018A (en) * 1985-07-01 1987-12-22 Nitro Nobel Ab Method and means for connecting fuses
US4681036A (en) * 1986-01-07 1987-07-21 Bintech (Pty) Ltd. Delay starters
US4821645A (en) * 1987-07-13 1989-04-18 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US4953464A (en) * 1987-07-13 1990-09-04 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
US5086702A (en) * 1990-04-12 1992-02-11 Atlas Powder Company Modular blasting system
US5162606A (en) * 1990-04-12 1992-11-10 Atlas Powder Company Modular blasting system
EP0500512A2 (en) * 1991-02-18 1992-08-26 Nitro Nobel Ab Connecting block for ignition devices
US5299500A (en) * 1991-02-18 1994-04-05 Nitro Nobel Ab Connecting block for ignition devices
EP0500512A3 (en) * 1991-02-18 1993-05-26 Nitro Nobel Ab Connecting block for ignition devices
US5204492A (en) * 1991-10-30 1993-04-20 Ici Explosives Usa Inc. Low noise, low shrapnel detonator assembly for initiating signal transmission lines
US6123025A (en) * 1991-10-30 2000-09-26 Orica Explosives Technology Pty Ltd. Low noise, low shrapnel detonator assembly for initiating signal transmission lines
US5463955A (en) * 1994-02-08 1995-11-07 Ici Canada Inc. Transmission tube connector
US6006671A (en) * 1995-02-24 1999-12-28 Yunan; Malak Elias Hybrid shock tube/LEDC system for initiating explosives
EP0873287A4 (en) * 1996-01-11 2003-02-19 Ensign Bickford Co Method and apparatus for transfer of initiation signals
EP0873287A2 (en) * 1996-01-11 1998-10-28 The Ensign-Bickford Company Method and apparatus for transfer of initiation signals
US5708228A (en) * 1996-01-11 1998-01-13 The Ensign-Bickford Company Method and apparatus for transfer of initiation signals
US5747722A (en) * 1996-01-11 1998-05-05 The Ensign-Bickford Company Detonators having multiple-line input leads
WO1997025298A1 (en) * 1996-01-11 1997-07-17 The Ensign-Bickford Company Detonators having multiple-line input leads
US5659149A (en) * 1996-01-18 1997-08-19 The Ensign-Bickford Company Secure connector for blast initiation signal transfer
US5703320A (en) * 1996-01-18 1997-12-30 The Ensign Bickford Company Connector for blast initiation system
US5682704A (en) * 1996-01-25 1997-11-04 Trent; Billy E. Fish hook shroud
US5791022A (en) * 1996-01-29 1998-08-11 Bohman; Lars Cord locking mechanism
US6131640A (en) * 1998-12-18 2000-10-17 Judkins; Ren Length adjustable bottomrail for venetian type blind
US9375268B2 (en) 2007-02-15 2016-06-28 Ethicon Endo-Surgery, Inc. Electroporation ablation apparatus, system, and method
US8449538B2 (en) 2007-02-15 2013-05-28 Ethicon Endo-Surgery, Inc. Electroporation ablation apparatus, system, and method
US8029504B2 (en) 2007-02-15 2011-10-04 Ethicon Endo-Surgery, Inc. Electroporation ablation apparatus, system, and method
US8425505B2 (en) 2007-02-15 2013-04-23 Ethicon Endo-Surgery, Inc. Electroporation ablation apparatus, system, and method
US7815662B2 (en) * 2007-03-08 2010-10-19 Ethicon Endo-Surgery, Inc. Surgical suture anchors and deployment device
US8075572B2 (en) 2007-04-26 2011-12-13 Ethicon Endo-Surgery, Inc. Surgical suturing apparatus
US8100922B2 (en) 2007-04-27 2012-01-24 Ethicon Endo-Surgery, Inc. Curved needle suturing tool
US8568410B2 (en) 2007-08-31 2013-10-29 Ethicon Endo-Surgery, Inc. Electrical ablation surgical instruments
US8939897B2 (en) 2007-10-31 2015-01-27 Ethicon Endo-Surgery, Inc. Methods for closing a gastrotomy
US8480657B2 (en) 2007-10-31 2013-07-09 Ethicon Endo-Surgery, Inc. Detachable distal overtube section and methods for forming a sealable opening in the wall of an organ
US8262655B2 (en) 2007-11-21 2012-09-11 Ethicon Endo-Surgery, Inc. Bipolar forceps
US8579897B2 (en) 2007-11-21 2013-11-12 Ethicon Endo-Surgery, Inc. Bipolar forceps
US8262680B2 (en) 2008-03-10 2012-09-11 Ethicon Endo-Surgery, Inc. Anastomotic device
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