Ultrasonic coagulating/cutting apparatus

Claim 2

An ultrasonic coagulating/cutting apparatus comprising; an ultrasonic vibrator for generating ultrasonic vibration; a vibration transmitting member connected to said ultrasonic vibrator and capable of transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue; a probe located on a distal end portion of said vibration transmitting member; a jaw supported opposite to the probe for open-close motion and capable of holding the organism tissue in conjunction with said probe; an operating member that opens and closes said jaw; and a non-contact portion located at least at a part of a surface of one of said jaw and said probe which faces the other of said jaw and said probe, said non-contact portion being capable of coagulating a to-be-treated region held between said probe and said jaw when said jaw is closed or rocked toward said probe.

Claim 3

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein said non-contact portion is formed by a step portion of said probe.

Claim 4

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein said non-contact portion is formed by a step portion of said jaw.

Claim 5

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein said non-contact portion is formed by step portions of said jaw and said probe.

Claim 6

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein said non-contact portion is located on a distal end side of said one of said jaw and said probe with respect to a contact portion at which said jaw and said probe touch and hold the organism tissue.

Claim 7

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein a contact portion at which said jaw and said probe touch and hold the organism tissue is located on a distal end side of said one of said jaw and said probe with respect to said non-contact portion.

Claim 8

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein a contact portion at which said jaw and the probe touch and hold the organism tissue is formed of a soft member.

Claim 9

An ultrasonic coagulating/cutting apparatus according to claim 1 , wherein a contact portion at which said jaw and the probe touch and hold the organism tissue has surface irregularity.

Claim 10

An ultrasonic coagulating/cutting apparatus comprising: an ultrasonic vibrator for generating ultrasonic vibration; a vibration transmitting member connected to said ultrasonic vibrator and capable of transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue; a probe located on a distal end portion of said vibration transmitting member; a jaw supported opposite to the probe for open-close motion and capable of holding the organism tissue in conjunction with said probe; an operating member that opens and closes said jaw; and a projection located on an extreme end portion of said probe, said projection serving to nip the organism tissue in conjunction with the jaw opposite thereto.

Claim 11

An ultrasonic coagulating/cutting apparatus comprising: an ultrasonic vibrator for generating ultrasonic vibration; a vibration transmitting member connected to said ultrasonic vibrator and capable of transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue; a probe located on a distal end portion of said vibration transmitting member; a jaw supported opposite to the probe for open-close motion and capable of holding the organism tissue in conjunction with said probe; an operating member that opens and closes said jaw; and a projection located on an extreme end portion of said probe, said projection serving to nip the organism tissue in conjunction with the jaw opposite thereto.

Claim 12

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein said jaw is also provided with a projection, and the projection of said jaw faces the projection of said probe.

Claim 13

An ultrasonic coagulating/cutting apparatus according to claim 10 , wherein steps are formed individually between said projections and respective other portions of said jaw and said probe.

Claim 14

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein a step is formed between said projection and another portion of said probe.

Claim 15

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein said projection is located on a proximal end side of said probe in a region where said jaw and said probe face each other.

Claim 16

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein said projection is located on a distal end side of said probe in a region where said jaw and said probe face each other.

Claim 17

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein said projection is formed of a soft member.

Claim 18

An ultrasonic coagulating/cutting apparatus according to claim 9 , wherein a surface of said projection has irregularity.

Claim 19

A medical tool comprising: a treatment main body; an insertion portion provided at the treatment main body and insertable into a subject; a supporting shaft provided in the insertion portion; a jaw supported by the supporting shaft and rotatable around the supporting shaft; a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw; a first handle connected to the treatment main body; a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; first and second finger grips provided at the first and second handles, respectively, for moving the second handle relative to the first handle such that the first and second handles perform the opening and closing operations; and a projection portion at one of the first and second finger grips such that the projection is brought into contact with the other of the first and second finger grips when the second handle is moved relative to the first handle to perform the closing operation; wherein a projection amount of the projection is adjustable to change a maximum closing position of the jaw which is closed by the closing operation of the second handle relative to the first handle.

Claim 20

A medical tool comprising: a treatment main body; an insertion portion provided at the treatment main body and insertable into a subject; a supporting shaft provided in the insertion portion; a jaw supported by the supporting shaft and rotatable around the supporting shaft; a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw; a first handle connected to the treatment main body; a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; first and second finger grips provided at the first and second handles, respectively, for moving the second handle relative to the first handle such that the first and second handles perform the opening and closing operations; and a projection portion at one of the first and second finger grips such that the projection is brought into contact with the other of the first and second finger grips when the second handle is moved relative to the first handle to perform the closing operation; wherein a projection amount of the projection is adjustable to change a maximum closing position of the jaw which is closed by the closing operation of the second handle relative to the first handle.

Claim 21

A medical tool according to claim 17 , wherein the projection projects only to a space between the first and second finger grips.

Claim 22

A medical tool according to claim 17 , wherein the maximum closing position is adjustable to a position in which the jaw and a probe are not in contact with each other.

Claim 23

An ultrasonic coagulating/cutting apparatus comprising: a treatment member including (i) a main body, (ii) an insertion portion provided at the main body and insertable into a subject, (iii) an ultrasonic vibrator supported by the main body for generating ultrasonic vibration, (iv) a vibration transmitting member provided inside the insertion portion and connected to the ultrasonic vibrator for transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue, (v) a probe provided at a distal and portion of the vibration transmitting member, (vi) an openable and closable jaw supported opposite to the probe for holding the organism tissue in conjunction with the probe, and (vii) an openable and closable operating member provided at the main body for opening and closing the jaw; a stopper provided at the treatment member for stopping movement of the operating member, said stopper being movable relative to the treatment member by an external operation; and a stopper fixing member provided at the treatment member for engaging with the stopper and fixing the stopper in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where the organism tissue held by the jaw and the probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 24

An ultrasonic coagulating/cutting apparatus comprising: a treatment member including (i) a main body, (ii) an insertion portion provided at the main body and insertable into a subject, (iii) an ultrasonic vibrator supported by the main body for generating ultrasonic vibration, (iv) a vibration transmitting member provided inside the insertion portion and connected to the ultrasonic vibrator for transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue, (v) a probe provided at a distal and portion of the vibration transmitting member, (vi) an openable and closable jaw supported opposite to the probe for holding the organism tissue in conjunction with the probe, and (vii) an openable and closable operating member provided at the main body for opening and closing the jaw; a stopper provided at the treatment member for stopping movement of the operating member, said stopper being movable relative to the treatment member by an external operation; and a stopper fixing member provided at the treatment member for engaging with the stopper and fixing the stopper in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where the organism tissue held by the jaw and the probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 25

An ultrasonic coagulating/cutting apparatus according to claim 20 , wherein at least one of the first and second positions is a position in which the probe and the jaw are not in contact with each other.

Claim 26

A medical tool comprising: a treatment member including (i) a treatment main body, (ii) an insertion portion provided at the treatment main body and insertable into a subject, (iii) a supporting shaft provided in the insertion portion, (iv) a jaw supported by the supporting shaft and rotatable around the supporting shaft, (v) a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw, (vi) a first handle connected to the treatment main body, and (vii) a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; a stopper provided at the treatment member for stopping movement of the second handle relative to the first handle and driving of the driving shaft, said stopper being movable relative to the treatment member by an external operation; and a stopper fixing member provided at the treatment member for engaging with the stopper and fixing the stopper in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where an organism tissue held by the jaw and a probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 27

A medical tool comprising: a treatment member including (i) a treatment main body, (ii) an insertion portion provided at the treatment main body and insertable into a subject, (iii) a supporting shaft provided in the insertion portion, (iv) a jaw supported by the supporting shaft and rotatable around the supporting shaft, (v) a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw, (vi) a first handle connected to the treatment main body, and (vii) a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; a stopper provided at the treatment member for stopping movement of the second handle relative to the first handle and driving of the driving shaft, said stopper being movable relative to the treatment member by an external operation; and a stopper fixing member provided at the treatment member for engaging with the stopper and fixing the stopper in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where an organism tissue held by the jaw and a probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 28

An ultrasonic coagulating/cutting apparatus according to claim 22 , wherein at least one of the first and second positions is a position in which the probe and the jaw are not in contact with each other.

Claim 29

An ultrasonic coagulating/cutting apparatus comprising: a treatment member including (i) a main body, (ii) an insertion portion provided at the main body and insertable into a subject, (iii) an ultrasonic vibrator supported by the main body for generating ultrasonic vibration, (iv) a vibration transmitting member provided inside the insertion portion and connected to the ultrasonic vibrator for transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue, (v) a probe provided at a distal end portion of the vibration transmitting member, (vi) an openable and closable jaw supported opposite to the probe for holding the organism tissue in conjunction with the probe, and (vii) an openable and closable operating member provided at the main body for opening and closing the jaw; stopping means for stopping movement of the operating member, said stopping means being movable relative to the treatment member by an external operation; and fixing means for engaging with the stopping means and fixing the stopping means in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where the organism tissue held by the jaw and the probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 30

An ultrasonic coagulating/cutting apparatus comprising: a treatment member including (i) a main body, (ii) an insertion portion provided at the main body and insertable into a subject, (iii) an ultrasonic vibrator supported by the main body for generating ultrasonic vibration, (iv) a vibration transmitting member provided inside the insertion portion and connected to the ultrasonic vibrator for transmitting the ultrasonic vibration to a treatment portion for treating an organism tissue, (v) a probe provided at a distal end portion of the vibration transmitting member, (vi) an openable and closable jaw supported opposite to the probe for holding the organism tissue in conjunction with the probe, and (vii) an openable and closable operating member provided at the main body for opening and closing the jaw; stopping means for stopping movement of the operating member, said stopping means being movable relative to the treatment member by an external operation; and fixing means for engaging with the stopping means and fixing the stopping means in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where the organism tissue held by the jaw and the probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 31

A medical tool comprising: a treatment member including (i) a treatment main body, (ii) an insertion portion provided at the treatment main body and insertable into a subject, (iii) a supporting shaft provided in the insertion portion, (iv) a jaw supported by the supporting shaft and rotatable around the supporting shaft, (v) a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw, (vi) a first handle connected to the treatment main body, and (vii) a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; stopping means for stopping movement of the second handle relative to the first handle and driving of the driving shaft, said stopping means being movable relative to the treatment member by an external operation; and fixing means for engaging with the stopping means and fixing the stopping means in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where an organism tissue held by the jaw and a probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.

Claim 32

A medical tool comprising: a treatment member including (i) a treatment main body, (ii) an insertion portion provided at the treatment main body and insertable into a subject, (iii) a supporting shaft provided in the insertion portion, (iv) a jaw supported by the supporting shaft and rotatable around the supporting shaft, (v) a driving shaft connected to the jaw for transmitting a driving power for rotating the jaw, (vi) a first handle connected to the treatment main body, and (vii) a second handle which is connected to the driving shaft and which is movable relative to the first handle to perform opening and closing operations, thereby driving the driving shaft to rotate the jaw; stopping means for stopping movement of the second handle relative to the first handle and driving of the driving shaft, said stopping means being movable relative to the treatment member by an external operation; and fixing means for engaging with the stopping means and fixing the stopping means in a position selected from a plurality of switchable positions including first and second positions, said first position being determined as a cutting position where an organism tissue held by the jaw and a probe is cut, and said second position being determined as a coagulating position where the jaw is stopped before reaching the cutting position.