Optimal tissue compression electrical surgical instrument
First Claim
1. An optimal tissue compression surgical device, comprising:
- a handle having therein a compression controller adapted to be electrically coupled to a power supply selectively supplying power therefrom; and
a surgical end effector connected to said handle and having;
an electrically controlled tissue-compressing device operable to compress tissue disposed therein, said tissue-compressing device being electrically coupled with said compression controller and being powered thereby to selectively control compression of the tissue disposed within said tissue-compressing device; and
a mechanical binary-output electrical switch disposed in line with said tissue-compressing device to place a force upon said mechanical binary-output electrical switch proportional to a compressing force directed upon the compressed tissue, said mechanical binary-output electrical switch having;
first and second electrical switching states initiated and changed solely by mechanical movements;
a biasing device retaining said switch in said first switching state with a bias force until a force imparted upon said switch overcomes said bias force to change said switch to said second switching state; and
a switching-state-status output communicatively coupled to said compression controller and operable to provide information identifying a current one of said switching states, said compression controller being operable to selectively control compression of the tissue disposed within said tissue-compressing device based upon said information.
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Accused Products
Abstract
An OTC surgical device includes a handle having therein a compression controller and thereat an end effector, which has an electrically controlled tissue-compressor coupled to the controller and powered thereby to selectively control tissue compression. A mechanical binary-output electrical switch is disposed in-line with the compressor to place a compressing force directed upon the compressed tissue proportionally upon the switch. The switch has two switching states initiated and changed only by mechanical movement. The switch includes a biasing device retaining the switch in a first switching state until a force imparted thereupon overcomes the bias force to change to the second switching state. A switching-state-status output provides information identifying a current state and communicates with the compression controller to selectively control compression of tissue based upon the information. With appropriate feedback, the controller can keep the tissue at OTC while the surgical procedure is carried out.
1164 Citations
24 Claims
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1. An optimal tissue compression surgical device, comprising:
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a handle having therein a compression controller adapted to be electrically coupled to a power supply selectively supplying power therefrom; and a surgical end effector connected to said handle and having; an electrically controlled tissue-compressing device operable to compress tissue disposed therein, said tissue-compressing device being electrically coupled with said compression controller and being powered thereby to selectively control compression of the tissue disposed within said tissue-compressing device; and a mechanical binary-output electrical switch disposed in line with said tissue-compressing device to place a force upon said mechanical binary-output electrical switch proportional to a compressing force directed upon the compressed tissue, said mechanical binary-output electrical switch having; first and second electrical switching states initiated and changed solely by mechanical movements; a biasing device retaining said switch in said first switching state with a bias force until a force imparted upon said switch overcomes said bias force to change said switch to said second switching state; and a switching-state-status output communicatively coupled to said compression controller and operable to provide information identifying a current one of said switching states, said compression controller being operable to selectively control compression of the tissue disposed within said tissue-compressing device based upon said information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optimal tissue compression surgical endocutter, comprising:
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a handle having therein a stapler-closing controller adapted to be electrically coupled with a power supply selectively supplying power therefrom; and a surgical stapling and cutting end effector connected to said handle and having; a pair of opposing stapling surfaces, at least one of said surfaces being movable with respect to the other of said stapling surfaces along a compression axis to compress tissue therebetween and to staple the tissue compressed therebetween; an electrically-powered stapler-closing device electrically coupled with said stapler-closing controller and being powered thereby to selectively control compression of the tissue disposed between said stapling surfaces, said stapler-closing device being mechanically coupled to said movable stapling surface to displace said movable surface when powered; a knife assembly disposed to cut the tissue compressed between said stapling surfaces; and a mechanical binary-output electrical switch disposed in line with said stapler-closing device along said compression axis to place a force upon said switch proportional to a compressing force directed upon the compressed tissue, said switch having; first and second electrical switching states initiated and changed solely by mechanical movements; a biasing device retaining said switch in said first switching state with a bias force until a force imparted upon said switch overcomes said bias force to change said switch to said second switching state; and a switching-state-status output communicatively coupled to said stapler-closing controller and operable to provide information identifying a current one of said switching states, said stapler-closing controller being operable to selectively control compression of the tissue disposed within said stapler-closing device based upon said information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An optimal tissue compression surgical endocutter, comprising:
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a handle having therein; an electrically-powered tissue compression actuator; and an electrically-powered tissue stapling/cutting actuator; and a surgical stapling and cutting end effector connected to said handle and having; a tissue-compression device operatively coupled to said compression actuator and having surfaces between which tissue to be surgically operated upon is compressed; a stapler/cutter operatively coupled to said stapling/cutting actuator; and a mechanical binary-output electrical optimal tissue compression switch; in line with said tissue-compression device; having first and second electrical switching states initiated and changed solely by mechanical movements; operatively coupled to said tissue compression actuator and to said stapling/cutting actuator; and operable; to control said tissue compression actuator; and to control said tissue stapling/cutting actuator and, thereby, said stapler/cutter dependent upon a given tissue compression existing at said tissue-compression device. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification