-
公开(公告)号：US10595933B2
公开(公告)日：2020-03-24
申请号：US15567107
申请日：2015-04-24
Applicant: COVIDIEN LP
Inventor： Weijiang Ding , Kai Liu
IPC: A61B18/14 , A61B17/285 , A61B17/28 , A61B18/00 , A61B34/30
Abstract: An electrosurgical forceps includes an end effector including a first jaw member having a proximal portion including a first jaw guide member and a distal portion including a first tissue contacting surface, and a second jaw member having a proximal portion including a second jaw guide member and a distal portion including a second tissue contacting surface. The first and second tissue contacting surfaces each include a shear edge disposed between stepped surfaces. The jaw members are vertically movable between an open position and a first approximated position in which the tissue contacting surfaces vertically oppose and laterally align with each other, and laterally movable between the first approximated position and a second approximated position to laterally displace the tissue contacting surfaces with respect to each other. The jaw guide members control an open angle between the jaw members during movement between the first and second approximated positions.
-
公开(公告)号：USD738499S1
公开(公告)日：2015-09-08
申请号：US29481404
申请日：2014-02-05
Applicant: COVIDIEN LP
Designer： Weijiang Ding , Pu Liu , Yuanxun Li , Peixiong Yi , Peining Sun
-
公开(公告)号：US20230172632A1
公开(公告)日：2023-06-08
申请号：US17912561
申请日：2020-03-19
Applicant: Covidien LP
Inventor： Weijiang Ding , Syed Sarfraz Ahamed , Kai Huang , Kaizhi Zhang
CPC classification number: A61B17/3423 , A61B1/126 , A61B2017/00566
Abstract: A trocar (10) is provided which permits cleaning of a medical device herein. In aspects, the trocar (10) has a seal (50) at a distal portion of the trocar (10). In use, a medical device, such as a laparoscope (200), passes through the seal (50) at the distal portion of the trocar (10). To clean a lens (210) at the end of the laparoscope (200), a vacuum is applied to the interior of the trocar (10), the laparoscope (200) is partially withdrawn so that it is proximal to the seal (50), and liquids and/or gases are introduced into the trocar (10) to clean the lens (210) while the laparoscope (200) remains within the trocar (10).
-
公开(公告)号：US20230096146A1
公开(公告)日：2023-03-30
申请号：US17992978
申请日：2022-11-23
Applicant: Covidien LP
Inventor： Weijiang Ding , Ming Cao , Yuanxun Li , Pu Liu
Abstract: A surgical instrument includes an end effector assembly including first and second grasping components each defining a tissue-contacting portion. One or both of the first or second grasping components is movable relative to the other between an open position and a closed position. In the closed position, the first and second tissue-contacting portions cooperate to define a grasping area therebetween. One or both of the first or second grasping components is configured to apply energy from the tissue-contacting portion thereof to tissue disposed within the grasping area to treat tissue. The tissue-contacting portion of the first grasping component defines a first opening therethrough. The first opening is disposed within the grasping area and in communication with a first lumen defined at least partially through the first grasping component. The first lumen is adapted to connect to a source of vacuum to enable aspiration through the first opening.
-
公开(公告)号：US11612428B2
公开(公告)日：2023-03-28
申请号：US16991091
申请日：2020-08-12
Applicant: Covidien LP
Inventor： Weijiang Ding
Abstract: A bipolar forceps includes a mechanical forceps including first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof for effecting movement of the jaw members relative to one another about a pivot. A disposable is housing is configured to be releasably coupled to at least one of the shafts and an electrode assembly is configured to be releasably coupled to the disposable housing. The electrode assembly includes electrodes releasably coupled to the jaw members. At least one of the electrodes includes a knife channel configured to receive a knife blade therethrough to cut tissue grasped between the jaw members. A tissue stop has a knife slot that aligns with the knife channel to receive the knife blade. An actuation mechanism advances the knife blade through the knife channel to cut tissue.
-
Patent Agency Ranking
公开(公告)号：US11540872B2
公开(公告)日：2023-01-03
申请号：US16493665
申请日：2017-03-13
Applicant: COVIDIEN LP
Inventor： Weijiang Ding , Kai Liu , Zaifeng Zhou
Abstract: An electrosurgical instrument (1) includes a first shaft member (110) pivotably coupled to a second shaft member (120), and a trigger (184) disposed on the second shaft member (120). The first and second shaft members (110,120) respectively include first and second handle members (130,140), and first and second jaw members (150,160). The first and second shaft members (110,120) define a longitudinal axis extending through a pivot, and first and second pivot axes that are substantially orthogonal to each other and the longitudinal axis. At least one of the first or second handle members (130,140) is pivotable about the first pivot axis to move the first and second jaw members (150,160) to an open position, a grasping position, or a sealing position. The trigger (184) is movable to pivot at least one of the first or second shaft members (110,120) about the second pivot axis to laterally displace the first and second jaw members (150,160) relative to each other to a cutting position.
-
公开(公告)号：US20220354522A1
公开(公告)日：2022-11-10
申请号：US17869156
申请日：2022-07-20
Applicant: Covidien LP
Inventor： Weijiang Ding , Weisheng Lu , Syed Sarfraz Ahamed
IPC: A61B17/28
Abstract: An electrosurgical forceps includes a first elongated shaft member including a first handle member and a first jaw member having a first tissue contacting surface, and a second elongated shaft member including a second handle member and a second jaw member having a second tissue contacting surface. At least one of the first and second handle members is movable relative to the other between an open position, a first approximated position where the first and second tissue contacting surfaces are diametrically opposed to one another, and a second approximated position where the first and second tissue contacting surfaces are laterally offset from one another. A handle connector assembly is selectively engageable with the second handle member and is configured to selectively communicate electrosurgical energy between the first and second tissue contacting surfaces when the first and second handle members are disposed in the first approximated position.
-
公开(公告)号：US11207127B2
公开(公告)日：2021-12-28
申请号：US15508962
申请日：2014-09-25
Applicant: COVIDIEN LP
Inventor： Weijiang Ding , Kai Liu
Abstract: A surgical end effector assembly includes a pair of jaw members, a knife defining a longitudinal slot, a pivot pin coupling the jaw members to one another, and a drive member including a drive pin that is engaged to the jaw members. The pivot pin and/or the drive pin extends through the longitudinal slot of the knife to couple the knife to the jaw members and/or the drive member. The end effector assembly is transitionable between a use position, wherein the knife and drive member are generally aligned with one another to facilitate releasable engagement of the end effector assembly with a surgical instrument, and a cleaning position, wherein the jaw members, knife, and drive member are fanned apart from one another to facilitate cleaning of the end effector assembly. Methods of disengaging and sterilizing end effector assemblies for reuse are also provided.
-
公开(公告)号：US20210100438A1
公开(公告)日：2021-04-08
申请号：US16497082
申请日：2017-03-24
Applicant: Covidien LP
Inventor： Weijiang Ding , Shenghua Yang , Yancong Lu
Abstract: An endoscope includes a handle, an elongated body, an image sensor, a lens, a light source disposed within a distal portion of the elongated body, a processor, and a controller. The processor is disposed in electrical communication with the image sensor and the light source, and is configured to analyze at least one characteristic of a first image captured by the image sensor. The controller is disposed in electrical communication with the processor, and is configured to supply current to the light source based on the at least one characteristic of the first image analyzed by the processor.
-
公开(公告)号：US10758257B2
公开(公告)日：2020-09-01
申请号：US15567411
申请日：2015-04-24
Applicant: COVIDIEN LP
Inventor： Weijiang Ding , Sarfraz Ahamed Syed , Weisheng Lu
Abstract: A electrosurgical forceps includes a first elongated shaft member including a first handle member and a first jaw member having a first tissue contacting surface, and a second elongated shaft member including a second handle member and a second jaw member having a second tissue contacting surface. At least one of the first and second handle members is movable relative to the other between an open position, a first approximated position where the first and second tissue contacting surfaces are diametrically opposed to one another, and a second approximated position where the first and second tissue contacting surfaces are laterally offset from one another. A handle connector assembly is selectively engageable with the second handle member and is configured to selectively communicate electrosurgical energy between the first and second tissue contacting surfaces when the first and second handle members are disposed in the first approximated position.
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.035 seconds)
