Patents by Inventor Michael Arad
Michael Arad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7328829Abstract: Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally, a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. A locking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.Type: GrantFiled: June 5, 2006Date of Patent: February 12, 2008Assignee: NiTi Medical Technologies Ltd.Inventors: Michael Arad, Boaz Harari, Amir Perle, Dror Rosner
-
Publication number: 20080015617Abstract: A compression anastomosis ring (CAR) assembly for use in joining severed organ wall portions of a hollow organ. The assembly comprises a first portion which includes an anvil ring and a second portion which comprises a bottom ring, at least one ring element, and at least one spring element formed of a shape-memory alloy. The at least one spring element provides a restorative force and is in compressive force contact with the bottom ring and the tissue to be joined is positioned between the anvil ring and the bottom ring. A plurality of needles on one of the ring elements is operative, upon application of a closure force, to pierce the tissue and the anvil ring, holding the disk to the second portion of the CAR assembly. An applicator for applying the CAR assembly and a method for using the assembly and applicator are taught.Type: ApplicationFiled: July 12, 2006Publication date: January 17, 2008Inventors: Boaz Harari, Leonid Monassevitch, Michael Arad, Doron Kopelman, Amir Perle
-
Publication number: 20070213585Abstract: A system including surgical compression clips is described and used for endoscopic full thickness resection. Similarly, methods for endoscopic full thickness resection using the described system are also discussed. Surgical compression clips using shape-memory elements are discussed. These clips are advanceable to the site of suspect tissue to be resected through a lumen of a multi-lumen sleeve encasing an endoscope. At the site of the tissue, the compression clip is opened and operated to circumscribe the suspect tissue. Grasper assemblies, advanceable through an endoscope, are also described. These latter grasp and bring the suspect tissue to the open clip. The clip is then closed and the tissue resected. The clip effects necrosis and healing at the resected site.Type: ApplicationFiled: December 29, 2006Publication date: September 13, 2007Inventors: Leonid Monassevitch, Boaz Shenhav, Boaz Harari, Amir Perle, Michael Arad, Shahar Millis, Kobby Greenberg, Alex Geller, Amir Szold, Shlomo Lelcuk, Doron Kopelman, Amol Bapaye, Dror Rosner
-
Publication number: 20070213747Abstract: A surgical clip assembly which includes a pair of generally linear compression elements for securing tissue between them and for applying to the secured tissue a compression force. The clip assembly has an initial, open position in which the linear compression elements may be positioned about tissue to be secured between them. The assembly also has a final, closed position where the compression elements are substantially parallel to each other, applying a compressive force to the secured tissue. The clip assembly also includes a force means disposed between the pair of compression elements and operative to transmit operational forces between them.Type: ApplicationFiled: December 29, 2006Publication date: September 13, 2007Inventors: Leonid Monassevitch, Boaz Shenhav, Boaz Harari, Amir Perle, Michael Arad, Shahar Millis, Kobby Greenberg, Alex Geller, Amir Szold, Shlomo Lelcuk, Doron Kopelman, Amol Bapaye, Dror Rosner
-
Patent number: 7121446Abstract: Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. The staplers have a selector element which is used to select an operational mode of the stapler. A locking linking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.Type: GrantFiled: December 13, 2004Date of Patent: October 17, 2006Assignee: NiTi Medical Technologies Ltd.Inventors: Michael Arad, Yaakov Greenberg, Amir Perle, Boaz Harari, Oded Katzman
-
Publication number: 20060219752Abstract: Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally, a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. A locking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.Type: ApplicationFiled: June 5, 2006Publication date: October 5, 2006Inventors: Michael Arad, Boaz Harari, Amir Perle, Dror Rosner
-
Patent number: 7094247Abstract: Apparatus for intratubular intussusception and anastomosis of a hollow organ portion including a cylindrical enclosure, coaxial intratubular intussusception device, for intussusception and clamping means. The apparatus also includes an intratubular anastomosis apparatus for joining organ portions after intussusception thereof with an anastomosis ring and crimping support element. The ring is formed of a shape memory alloy wire, for crimping adjacent organ portions against the crimping support element so as to cause anastomosis therebetween. The ring assumes a plastic or malleable state, at a lower temperature and an elastic state at a higher temperature. The apparatus further includes the crimping support element for intratubular insertion so as to provide a support for crimping the organ portions against the support element.Type: GrantFiled: September 9, 2002Date of Patent: August 22, 2006Assignee: NiTi Medical Technologies Ltd.Inventors: Leonid Monassevitch, Benjamin Spenser, Michael Arad, Ronen Ne'eman
-
Publication number: 20060124689Abstract: Palm-size staplers for surgical procedures are proposed. The staplers include cartridge and slider assemblies with the cartridge assembly containing staples. As the slider assembly advances step-wise incrementally it provides a staple ejection force causing ejection of staples. Optionally a blade element may be included for cutting. An anvil member is operable in closed and open positions with respect to the cartridge assembly. When in a closed position, the anvil member holds a portion of tissue against the cartridge assembly, ejected staples passing through the held tissue. Actuation of the staplers is effected by a lever member. The staplers have a selector element which is used to select an operational mode of the stapler. A locking linking mechanism, when in its locked position, holds the anvil member adjacent to the cartridge assembly allowing closure of the staple to occur. The devices are intended for one hand use.Type: ApplicationFiled: December 13, 2004Publication date: June 15, 2006Inventors: Michael Arad, Yaakov Greenberg, Amir Perle, Boaz Harari, Oded Katzman
-
Patent number: 6896684Abstract: The present invention, discloses an anastomosis clip applicator device for applying a surgical clip, formed at least partly of a shape memory alloy, to press together adjacent wall portions of adjacent hollow organ portions so as to effect anastomosis therebetween. The applicator device includes: gripping apparatus for gripping a surgical clip, a release mechanism, associated with the gripping apparatus, and tissue cutting apparatus, operatively associated with the gripping apparatus. There is also apparatus for activating the gripping apparatus, the release mechanism and the cutting apparatus, so as to introduce and apply the surgical clip into adjacent hollow organ portions, such that the surgical clip compresses together the adjacent walls of the hollow organ portions, and thereafter causes the cutting apparatus to perforate the adjacent pressed together organ walls to provide patency through the joined portions of the hollow organ.Type: GrantFiled: May 30, 2002Date of Patent: May 24, 2005Assignee: NiTi Medical Technologies Ltd.Inventors: Leonid Monassevitch, Shlomo Lelcuk, Michael Arad, Boaz Harari, Ronen Neeman
-
Patent number: 6884250Abstract: An intratubular anastomosis apparatus for joining organ portions of a hollow organ after intussusception which includes an anastomosis ring, and a crimping support element. The anastomosis ring includes a length of a wire formed of a shape memory alloy for crimping adjacent organ portions against the crimping support element so as to cause anastomosis. The anastomosis ring and the shape memory alloy assumes a plastic state, when at a first, lower temperature and an elastic state, when reaching at least a second, higher temperature. The crimping support element provides a support for crimping the organ portions against the support element. Using the anastomosis ring and crimping support element of the present invention reduces the risk of leakage and no staples or sutures remain within the anastomosed organ portion.Type: GrantFiled: September 9, 2002Date of Patent: April 26, 2005Assignee: NiTi Medical Technologies Ltd.Inventors: Leonid Monassevitch, Benjamin Spenser, Michael Arad, Ronen Ne'eman
-
Publication number: 20050043757Abstract: A method is disclosed for utilizing a deformable article of manufacture formed at least partly of a shape memory alloy. The method includes the steps of deforming the article from a first predetermined configuration to a second predetermined configuration while the shape memory alloy is, at least partially, in its stable martensitic state and at a first temperature. A resisting force is applied to the deformed article of manufacture using a restraining means and the article is heated from the first temperature to a second temperature in the presence of the resisting force. The stable martensitic state is transformed to a metastable stress-retained martensitic state. The resisting force is then removed allowing the alloy to transform to its austenitic state and the shape of the article to be restored substantially to its first configuration. Devices primarily medical devices operative by employing this method are also disclosed.Type: ApplicationFiled: July 30, 2004Publication date: February 24, 2005Inventors: Michael Arad, Leonid Monassevitch, Amir Perle, Noa BenDov-Laks
-
Publication number: 20040064090Abstract: Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.Type: ApplicationFiled: April 23, 2003Publication date: April 1, 2004Inventors: Gad Keren, Ascher Schmulewitz, Benjamin Spenser, Michael Arad, Randy J. Kesten, Sophia Pesotchinsky, Michael H. Rosenthal, Andrew W. Kramer, Sam G. Payne
-
Publication number: 20040064091Abstract: Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.Type: ApplicationFiled: May 13, 2003Publication date: April 1, 2004Inventors: Gad Keren, Ascher Schmulewitz, Benjamin Spenser, Michael Arad, Randy J. Kesten, Sophia Pesotchinsky, Michael H. Rosenthal, Andrew W. Kramer, Sam G. Payne
-
Patent number: 6685708Abstract: Apparatus for increasing the span length of a bone staple, which includes two prongs connected by a system which provides a mechanical advantage to facilitate bringing the prongs closer together or further apart. One prong includes a staple receptor. The other prong includes a cam-like head such that when the prongs are brought together the staple span length of a staple in the receptor increases. Alternatively, the two prongs are disposed for mounting a staple. When the prongs are pushed apart the staple span length increases. The present invention also relates to a bone staple formed of a shape-memory alloy and an apparatus associated with the staple. The apparatus deforms the staple by increasing its span length and facilitating its insertion into bone tissue. The deformation range of the staple allows the staple to revert to its original shape when the temperature is changed.Type: GrantFiled: February 28, 2001Date of Patent: February 3, 2004Assignee: NiTi Alloys Technologies Ltd.Inventors: Leonid Monassevitch, Michael Arad, Zvi Laster
-
Publication number: 20040015178Abstract: An intratubular anastomosis apparatus for joining organ portions of a hollow organ after intussusception thereof, the device includes an anastomosis ring, and a crimping support element for use therewith. The anastomosis ring includes a length of a wire formed of a shape memory alloy defining a closed generally circular shape, having a central opening, and having overlapping end portions, the anastomosis ring for crimping adjacent organ portions against the crimping support element so as to cause anastomosis therebetween. The anastomosis ring and the shape memory alloy assumes a plastic or malleable state, when at a first, lower temperature and an elastic state, when reaching at least a second, higher temperature. The anastomosis ring thereby is enabled to retain a preselected configuration at the first, lower temperature, and an elastic crimping configuration upon reverting to the second, higher temperature.Type: ApplicationFiled: September 9, 2002Publication date: January 22, 2004Inventors: Leonid Monassevitch, Benjamin Spenser, Michael Arad, Ronen Ne'eman
-
Publication number: 20040015179Abstract: Apparatus for intratubular intussusception and anastomosis of a hollow organ portion including a cylindrical enclosure, coaxial intratubular intussusception device, for intussusception and clamping means. The apparatus also includes an intratubular anastomosis apparatus for joining organ portions after intussusception thereof with an anastomosis ring and crimping support. element. The ring is formed of a shape memory alloy wire, for crimping adjacent organ portions against the crimping support element so as to cause anastomosis therebetween The ring assumes a plastic or malleable state, at a lower temperature and an elastic state at a higher temperature. The apparatus further includes the crimping support element for intratubular insertion so as to provide a support for crimping the organ portions against the support element.Type: ApplicationFiled: September 9, 2002Publication date: January 22, 2004Inventors: Leonid Monassevitch, Benjamin Spenser, Michael Arad, Ronen Ne'eman
-
Publication number: 20020177859Abstract: The present invention, discloses an anastomosis clip applicator device for applying a surgical clip, formed at least partly of a shape memory alloy, to press together adjacent wall portions of adjacent hollow organ portions so as to effect anastomosis therebetween. The applicator device includes: gripping apparatus for gripping a surgical clip, a release mechanism, associated with the gripping apparatus, and tissue cutting apparatus, operatively associated with the gripping apparatus. There is also apparatus for activating the gripping apparatus, the release mechanism and the cutting apparatus, so as to introduce and apply the surgical clip into adjacent hollow organ portions, such that the surgical clip compresses together the adjacent walls of the hollow organ portions, and thereafter causes the cutting apparatus to perforate the adjacent pressed together organ walls to provide patency through the joined portions of the hollow organ.Type: ApplicationFiled: May 30, 2002Publication date: November 28, 2002Inventors: Leonid Monassevitch, Shlomo Lelcuk, Michael Arad, Boaz Harari, Ronen Neeman
-
Publication number: 20020169413Abstract: Methods and apparatus are provided for treating congestive heart by actively or passively enhancing perfusion to the renal arteries. A first embodiment comprises a specially configured balloon catheter and extracorporeal pump, wherein the pump operates in a “once-through” fashion or alternating volume displacement mode. In another embodiment the catheter includes a pair of balloons to isolate a region of the aorta, and a third balloon that directs flow into the renal arteries. In still further embodiments, a stent or cuff having a constricted region is deployed in or around the aorta, respectively, to create a backpressure upstream of the stent or cuff. Methods of enhancing renal perfusion also are provided.Type: ApplicationFiled: May 21, 2002Publication date: November 14, 2002Applicant: Libra Medical Systems, Inc.Inventors: Gad Keren, Ascher Shmulewitz, Benjamin Spenser, Michael Arad, Randy J. Kesten, Sophia Pesotchinsky, Michael H. Rosenthal, Andrew W. Kramer, Sam G. Payne
-
Patent number: 6402765Abstract: A surgical clip and method for anastomosing a gastrointestinal tract, the clip being formed at least partly of a shape memory alloy, the clip including: a first length of a wire defining a closed geometrical shape having a central opening; a second length of a wire defining a closed geometrical shape similar in configuration and magnitude to that of the first length of wire, wherein, when placed in side-by-side registration, the first and second lengths of wire fully overlap; an intermediate portion located between the first length of wire and the second length of wire, the intermediate portion formed of a shape memory alloy; a cutting element associated with the first length of wire; a counter element associated with the second length of wire and arranged for cutting engagement with the cutting element; wherein when at a first temperature or higher, the first and second lengths of wire are positioned in a side-by-side closed position and the shape memory alloy is in an elastic state, and further, when at a sType: GrantFiled: June 12, 2000Date of Patent: June 11, 2002Assignee: Niti Alloys Technologies Ltd.Inventors: Leonid Monassevitch, Shlomo Lelcuk, Michael Arad
-
Publication number: 20020029044Abstract: The present invention relates to providing apparatus for increasing a length span of a bone staple, said apparatus including first and second prongs, joined by a system which provides a mechanical advantage to selectably bringing said first and second prongs together and pushing them apart,Type: ApplicationFiled: February 28, 2001Publication date: March 7, 2002Inventors: Leonid Monassevitch, Michael Arad, Zvi Laster