Treatment instrument and manufacturing method of treatment instrument
An electrically conductive plate of a treatment instrument includes a treating surface and a back surface facing an opposite side of the treating surface, and an electric component is arranged on the back surface of the electrically conductive plate. The electric component is electrically independent from the electrically conductive plate, and a holder supports the electrically conductive plate from the back surface side. A connector is made of a thermoplastic resin, and arranged on either side of and spaced from the electric component in a width direction intersecting with a longitudinal axis. The connector stationarily fixes each end of the electrically conductive plate in the width direction to the holder.
1 . A treatment instrument comprising:
a plate extending along a longitudinal direction, the plate including:
a first surface; and
a second surface, the second surface opposed to the first surface;
an electric component arranged on the second surface;
a holder supporting the electric component; and
a connector connecting the holder and the plate, the connector being located between the plate and the holder in a thickness direction of the treatment instrument, the thickness direction being orthogonal to a planar portion of the second surface that contacts the electric component,
wherein the electric component is surrounded by the holder and the plate.
2 . The treatment instrument according to claim 1 , wherein the holder includes:
a base; and
a protrusion protruding from the base toward the plate.
3 . The treatment instrument according to claim 2 , wherein the protrusion includes a concave portion concaved from the second surface toward the base.
4 . The treatment instrument according to claim 3 , wherein the electric component is located in the concave portion, and the protrusion is in contact with the second surface.
5 . The treatment instrument according to claim 1 , wherein the connector includes:
a first connector arranged on a first end of the plate; and
a second connector arranged on a second end of the plate, the second end of the plate opposed to the first end of the plate in a width direction, the width direction intersecting the longitudinal direction.
6 . The treatment instrument according to claim 5 , wherein the holder includes:
a base; and
a protrusion protruding from the base toward the plate,
wherein the protrusion is located between the first connector and the second connector.
7 . The treatment instrument according to claim 1 , wherein the connector is spaced apart from the electric component.
8 . The treatment instrument according to claim 1 , wherein the connector is made of a first resin.
9 . The treatment instrument according to claim 8 , wherein the holder is comprised a second resin, and the second resin includes the same material as the first resin.
10 . The treatment instrument according to claim 1 , wherein the electric component is a heater.
11 . The treatment instrument according to claim 1 , wherein the electric component is a sensor.
12 . The treatment instrument according to claim 5 , wherein the first connector and the second connector extend along the longitudinal direction.
13 . The treatment instrument according to claim 5 , wherein the first connector surrounds the first end of the plate, and the second connector surrounds the second end of the plate.
14 . The treatment instrument according to claim 5 , wherein the connector further includes:
a first groove engaging with the first end of the plate; and
a second groove engaging with the second end of the plate.
15 . The treatment instrument according to claim 2 , wherein:
the plate has a first length in a width direction,
the base has a second length in the width direction,
the width direction intersects the longitudinal direction, and
the first length is shorter than the second length.
16 . The treatment instrument according to claim 2 , wherein:
the plate has a first length in a width direction,
the protrusion has a second length in the width direction,
the width direction intersects the longitudinal direction, and
the first length is longer than the second length.
17 . The treatment instrument according to claim 2 , wherein the plate is spaced apart from the base.
18 . The treatment instrument according to claim 2 , wherein:
the protrusion has a first length in a width direction,
the base has a second length in the width direction,
the width direction intersects the longitudinal direction, and
the first length is shorter than the second length.
19 . The treatment instrument according to claim 1 , wherein the connector is not located outward in a width direction beyond an outermost surface of a widest portion of the holder in the width direction, the width direction intersecting the longitudinal direction.
20 . The treatment instrument according to claim 1 , wherein:
the connector includes:
a first connector connecting a first end of the plate and the holder; and
a second connector connecting a second end of the plate and the holder, the second end of the plate being located on an opposite side of the first end of the plate, and
the first connector is spaced apart from the second connector.