JPWO2020121204A5

JPWO2020121204A5 -

Info

Publication number: JPWO2020121204A5
Application number: JP2021529446A
Authority: JP
Publication date: 2022-12-27
Anticipated expiration: 2039-12-10

Claims

a surgical instrument,
a device including a functional end configured to be inserted into a body part;
a main handle including a distal end coupled to the proximal end of the device;
an actuation handle insert including a proximal end movably coupled to the main handle, the actuation handle insert including a number of first rolling components;
An actuation tube coupled to a distal end of the actuation handle insert, wherein the functional end of the device is at least partially distal to the actuation tube when the device is in a deactivated state. the working tube extending out of the end;
a plurality of levers including a proximal end configured to be coupled to the main handle, the plurality of levers including a corresponding number of second rolling components;
a plurality of rolling elements,
each of said rolling elements is positioned between one of said plurality of second rolling components and one of said plurality of first rolling components; and one or more of said plurality of levers. of said rolling element to roll said rolling element on at least one of said corresponding number of first rolling components or second rolling components to move said actuation handle insert to said pushing forward against the device causing the actuation tube to transition the device from the deactivated state to the activated state;
A surgical instrument comprising a plurality of rolling elements.

wherein said functional end of said device comprises a jaw or arm, and causing said actuation tube to transition said device from said deactivated state to said activated state further comprises closing said jaw or arm;
The surgical instrument according to claim 1.

each of the first rolling components comprises a ramp, one of the plurality of rolling elements configured to roll thereon;
each of the second rolling components includes a rolling element receiving portion, and the rolling element receiving portion is a groove such that one of the plurality of rolling elements rolls therein; comprising said groove,
The surgical instrument according to claim 1.

The surgical instrument of claim 3, wherein the ramp includes sidewalls configured to enclose one of the plurality of rolling elements.

4. The surgical instrument of claim 3, wherein the ramp includes a projection on the bottom of the ramp for limiting movement of one of the plurality of rolling elements.

4. The surgical instrument of claim 3, wherein the plurality of rolling elements are cylindrical.

4. The surgical instrument of claim 3, wherein the groove is U-shaped or shaped as a semi-circle.

4. The surgical instrument of claim 3, wherein the rolling element housing blocks radial movement of one of the plurality of rolling elements.

each of said second rolling components comprises a ramp, said ramp being configured to roll thereon one of said plurality of said rolling elements;
each of the first rolling components includes a rolling element receiver, and the rolling element receiver is a groove such that one of the plurality of rolling elements rolls therein; comprising said groove,
The surgical instrument according to claim 1.

each of the first rolling components comprises a first ramp, one of the plurality of rolling elements configured to roll thereon; and each of the second rolling components includes a second ramp, the one of the plurality of rolling elements being configured to roll thereon;
The surgical instrument according to claim 1.

The first ramp includes a first groove shaped as a passage having a first start point and a first end point, and the second ramp has a second start point and a second end point. a second groove shaped as a passageway having
A surgical instrument according to claim 10 .

12. The surgical instrument of claim 11, wherein the first start point, the first end point, the second start point, and the second end point limit longitudinal movement of the plurality of rolling elements.

each of the first rolling components includes a ramp, one of the plurality of rolling elements configured to roll thereon; and each of the components includes a retainer configured to roll one of the plurality of rolling elements therein;
The surgical instrument according to claim 1.