Palm-size surgical stapler for single hand operation
First Claim
1. A palm-size stapler for hand-assisted laparoscopic and open surgery comprising:
- a) a chassis member in which at least the following elements are supported;
i) a cartridge assembly for containing at least two rows of staples; and
ii) a slider assembly operative to slidably move along a predetermined path with respect to said cartridge assembly, thereby to provide a predetermined staple ejection force to cause the ejection of staples from said cartridge assembly, said slider assembly including;
at least one staple ejector element aligned with said at least two rows of staples for causing ejection of the staples;
b) an anvil member operable in closed and open positions with respect to said cartridge assembly and when in a closed position said anvil member is spaced from said cartridge assembly so as to hold a portion of tissue therebetween and to allow closure of staples ejected from said cartridge assembly in response to the predetermined staple ejection force provided by said slider assembly;
c) a lever member mounted to said chassis member pivotably movable with respect to said cartridge assembly;
d) at least one selector element disposed on said stapler, said at least one selector element operated while in the grip of a single hand of an operator, said at least one selector element selecting an operational mode of said stapler in response to operator selected positioning of said selector element; and
e) a locking linking mechanism operable in locked and unlocked positions and being in operative association with said anvil member and also with said at least one selector element, said mechanism being brought to its locked position when said lever member is brought down and presses on it, and when said linking mechanism is in its locked position said anvil member is brought to its closed position and held adjacent to said cartridge assemblythereby to allow closure of staples in the portion of the tissue held between said cartridge assembly and said anvil member as said slider assembly advances step-wise incrementally ejecting staples into the tissue with each step.
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Accused Products
Abstract
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.
1790 Citations
44 Claims
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1. A palm-size stapler for hand-assisted laparoscopic and open surgery comprising:
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a) a chassis member in which at least the following elements are supported; i) a cartridge assembly for containing at least two rows of staples; and ii) a slider assembly operative to slidably move along a predetermined path with respect to said cartridge assembly, thereby to provide a predetermined staple ejection force to cause the ejection of staples from said cartridge assembly, said slider assembly including;
at least one staple ejector element aligned with said at least two rows of staples for causing ejection of the staples;b) an anvil member operable in closed and open positions with respect to said cartridge assembly and when in a closed position said anvil member is spaced from said cartridge assembly so as to hold a portion of tissue therebetween and to allow closure of staples ejected from said cartridge assembly in response to the predetermined staple ejection force provided by said slider assembly; c) a lever member mounted to said chassis member pivotably movable with respect to said cartridge assembly; d) at least one selector element disposed on said stapler, said at least one selector element operated while in the grip of a single hand of an operator, said at least one selector element selecting an operational mode of said stapler in response to operator selected positioning of said selector element; and e) a locking linking mechanism operable in locked and unlocked positions and being in operative association with said anvil member and also with said at least one selector element, said mechanism being brought to its locked position when said lever member is brought down and presses on it, and when said linking mechanism is in its locked position said anvil member is brought to its closed position and held adjacent to said cartridge assembly thereby to allow closure of staples in the portion of the tissue held between said cartridge assembly and said anvil member as said slider assembly advances step-wise incrementally ejecting staples into the tissue with each step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A palm-size stapler for hand-assisted laparoscopic and open surgery comprising:
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a) a chassis member in which at least one of the following elements are supported; i) a cartridge assembly for containing at least two rows of staples; and ii) a slider assembly operative to slidably move in a predetermined path with respect to said cartridge assembly, thereby to provide a predetermined staple ejection force to cause the ejection of staples from said cartridge assembly, said slider assembly including;
at least one staple ejector element aligned with said at least two rows of staples for causing ejection of the staples;b) a lever member mounted to said chassis member pivotably movable with respect to said cartridge assembly; c) at least one selector element disposed on said stapler, said at least one selector element operated while in the grip of a single hand of an operator, said at least one selector element selecting an operational mode of said stapler in response to operator selected positioning of said at least one selector elements; d) an anvil member operable in closed and open positions with respect to said cartridge assembly and when in closed position said anvil member is spaced from said cartridge assembly so as to hold a portion of tissue being stapled therebetween, and to allow closure of staples ejected into the tissue from said cartridge assembly in response to the predetermined staple ejection force provided by said slider assembly; and e) an incremental drive mechanism in operational association with said slider assembly, said drive mechanism operative to selectably engage with and to provide a predetermined driving force to said slider assembly causing an incremental step-wise sliding motion thereof, said incremental drive mechanism also allowing for interruption of the operation of said device during surgery and repositioning of the portion of tissue being stapled when said at least one selector element is brought to an operational mode wherein said lever member is operative to release said anvil member from its closest position. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification