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Patent

Combinational scissor-grasper tool for use in laparoscopy

22 Jun 2011-
TL;DR: In this paper, a four-jawed combinational scissor-grasper surgical tool for use in laparoscopy is described. But this tool is not suitable for use with a human operator.
Abstract: Disclosed is a four-jawed combinational scissor-grasper surgical tool for use in laparoscopy. Cutting and grasping functionalities are respectively enabled via movement of a pair of such specially contoured jaw members sliding against or splaying apart from the other pair. Also disclosed are means for achieving selectable interlocking of jaw members and mechanical linkage for their actuation by human user.
Citations
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Patent
31 Mar 2015
TL;DR: In this paper, a surgical tool with an elongated shaft having a proximal end and distal end is described, where an effector body includes a plurality of motor interfaces for driving the plurality of effector mechanisms.
Abstract: A surgical tool having an elongated shaft having a proximal end and distal end. A surgical end effector is located about the distal end. The surgical end effector has a plurality of effector mechanisms comprising a plurality of degree of freedoms. An effector body is located at the proximal end. The effector body includes a plurality of motor interfaces for driving the plurality of effector mechanisms. A transmission is coupled to the effector body

446 citations

Patent
07 May 2014
TL;DR: An implant insertion system includes a shape memory implant movable between a first shape a second shape and an implant insertion device movable from an implant disengagement position to an implant engagement position as mentioned in this paper.
Abstract: An implant insertion system includes a shape memory implant movable between a first shape a second shape and an implant insertion device movable between an implant disengagement position and an implant engagement position. The implant insertion device receives the shape memory implant in its first shape while in its implant disengagement position. Movement of the implant insertion device from its implant disengagement position to its implant engagement position manipulates the shape memory implant from its first shape to its second shape. The implant insertion device maintains the shape memory implant in its second shape until delivery of the shape memory implant into tissue or bone.

45 citations

Patent
09 May 2016
TL;DR: In this article, a modular IOL system including a base and a lens, wherein the lens includes fixed and actuatable tabs for connection to the base, is presented, allowing for the lens to be adjusted or exchanged while leaving the base in place, either intra-operatively or postoperatively.
Abstract: Modular IOL systems including a base and a lens, wherein the lens includes fixed and actuatable tabs for connection to the base. The modular IOL allows for the lens to be adjusted or exchanged while leaving the base in place, either intra-operatively or post-operatively. Drug delivery capabilities and/or sensing capabilities may be incorporated into the base. Injector devices may be used to facilitate placement of the base and the lens sequentially or simultaneously into the eye.

27 citations

Patent
05 Nov 2015
TL;DR: In this article, the authors describe a wrist-like instrument with three degrees of freedom for actuation of the end effector and a configurable set of arms which are capable of performing a first function in one mode and a second function in a second mode.
Abstract: The present invention is generally related to the art of surgical instruments for use in minimally invasive surgery and more specifically to robotic laparoscopic surgery. According to one aspect of the invention, this articulated instrument is capable of producing a wrist-like motion, i.e. the end effector generally has three degrees of freedom. Additionally, it also has another degree of freedom for actuation of the end effector. The end effector has a configurable set of arms which are capable of performing a first function in a first mode and a second function in a second mode. This end effector also has the capability to dynamically switch between two modes of different functions (e.g.: scissor and grasper). These actions of switching back and forth between the different modes (e.g.: scissor and grasper) can be described as extra actions. These extra actions are achieved without increasing the number of inputs.

24 citations

Patent
14 Aug 2014
TL;DR: In this paper, a locking tip cover (410) was used to lock the disposable tip assembly to a lock interface element (448B) of a tip interface (245) of the reusable instrument portion (204).
Abstract: A surgical instrument (203) includes a reusable instrument portion (204) and a disposable tip assembly (205). The disposable tip assembly (205) includes an end effector assembly (206) that in turn includes an end effector. The disposable tip assembly (205) also includes a locking tip cover (410) that locks the disposable tip assembly (205) to a lock interface element (448B) of a tip interface (245) of the reusable instrument portion (204). To facilitate mounting the disposable tip assembly (205) on the tip interface (245) of the reusable instrument portion (204), the disposable tip assembly (205) includes a first quick connect/disconnect element (409) and the tip interface (245) includes a second quick connect/disconnect element (447). The second quick connect/disconnect element (447) is coupled to a tendon (452). The tendon (452) is also coupled to an actuator assembly that provides forces that push and pull (push/pull) the tendon.

19 citations

References
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Patent
02 Jan 2003
TL;DR: In this article, a medical device for simultaneously cutting tissue with a heating element, cauterizing the tissue with sealing elements, and stapling the tissue together is presented, where the heating elements comprise bipolar RF electrodes.
Abstract: A medical device (1) for simultaneously cutting tissue with a heating element (16), cauterizing the tissue with sealing elements (14, 15), and stapling the tissue together. The heating elements comprise bipolar RF electrodes.

1,380 citations

Patent
David C. Yates1
07 Apr 1995
TL;DR: A hemostatic surgical instrument is provided for coagulation, cauterization and/or welding of tissue especially in the performance of endoscopic procedures as mentioned in this paper, which compresses the tissue between interfacing surfaces of first and second elements.
Abstract: A hemostatic surgical instrument is provided for coagulation, cauterization and/or welding of tissue especially in the performance of endoscopic procedures. The instrument compresses the tissue between interfacing surfaces of first and second elements. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using therapeutic heat energy. Surgical fasteners, for example, staples may be also included in the instrument.

1,244 citations

Patent
05 Aug 2002
TL;DR: In this paper, a multi-functioning end effector for insertion into a patient, a user control adapted for use by the surgeon external of the patient, and an intermediate section between the end-effector and the user control to translate control instructions from the user controller through an actuating mechanism to operate the endeffector in one of at least two different functioning states.
Abstract: An apparatus and method for minimally invasive surgery. The apparatus can comprise a tool which includes a multi-functioning end effector for insertion into a patient, a user control adapted for use by the surgeon external of the patient, and an intermediate section between the end effector and the user control to translate control instructions from the user control through an actuating mechanism to operate the end effector in one of at least two different functioning states. No instrument exchange is necessary to change between states. The actuation mechanism could be a manually operated mechanical mechanism. Alternatively, it could be partially or fully electromechanical or electrical or electronic. According to one aspect, the end effector is a rigid link mechanism. According to another aspect, the end effector could be a compliant mechanism, at least in part. Another aspect of the invention includes the ability of the end effector to have at least some articulation in addition to grasping and cutting functions.

1,080 citations

Patent
30 Apr 1999
TL;DR: A bipolar surgical device comprises a pair of actuable jaws as mentioned in this paper, which are laterally spaced-apart and arranged in a linear manner so that the lateral distance there between remains generally constant.
Abstract: A bipolar surgical device comprises a pair of actuable jaws. A first electrode member which optionally includes a line of electrically coupled tissue-penetrating elements is formed on one of the jaws, and a second electrode member which optionally includes a line of electrically coupled tissue-penetrating elements is formed on the same or the other jaw. The electrode members are laterally spaced-apart and arranged in a parallel, usually linear manner so that the lateral distance therebetween remains generally constant. In operation, tissue may be grasped between the jaws so that the electrode members contact and/or the tissue-penetrating elements enter into the tissue. By energizing the electrode members at opposite polarities using a high frequency energy source, tissue between the jaws will be heated, coagulated, and/or necrosed, while heating of tissue outside of the lines will be minimized.

832 citations

Patent
16 Sep 1993
TL;DR: A multifunctional clip applier instrument includes an elongate instrument body having a proximal end received in a control housing, a distal end having one or two pairs of opposed forceps jaws spring biased apart, a plurality of surgical clips disposed in a clip magazine inserted into a clip cartridge removably received into the instrument body and a handle cooperating with the control housing to operate the forceps joints to apply clips to tissue, to grasp and manipulate tissue when no clip is in the jaws, and to selectively or automatically cut tissue after clipping.
Abstract: A multifunctional clip applier instrument includes an elongate instrument body having a proximal end received in a control housing, a distal end having one or two pairs of opposed forceps jaws spring biased apart, a plurality of surgical clips disposed in one or two clip magazines inserted into a clip cartridge removably received into the instrument body and a handle cooperating with the control housing to operate the forceps jaws to apply clips to tissue, to grasp and manipulate tissue when no clip is in the jaws, to selectively or automatically advance clips into the jaws and to selectively or automatically cut tissue after clipping

755 citations