Sheath
AssigneeLifetech Scientific (Shenzhen) Co., Ltd.
InventorsGang Wang, Feng Peng, Wei Jiang, Quanyuan Wang
Life of this patent
Estimating the term…
Abstract
A sheath, including a sheath body, a handle, and a traction wire. The traction wire includes a first traction wire. The handle includes a first guide rail member and a first slider. The first slider is connected to the first traction wire. A first groove is provided on an outer wall of the first guide rail member along an axial direction. The first groove includes a first bottom and a first side wall. The first slider slides in the first groove along the first side wall so as to drive the first traction wire to move. At least part of the outer wall of the first guide rail member is radially recessed to a central shaft of the first guide rail member to form the first groove.
Claims8
A sheath, comprising:
- a sheath body, a handle, and a traction wire, a proximal end of the sheath body being connected to the handle, and the traction wire being connected to the sheath body and the handle, wherein
- the traction wire comprises a first traction wire;
- the handle comprises a first guide rail member and a first slider;
- the first slider is connected to the first traction wire;
- a first groove is provided on an outer wall of the first guide rail member along an axial direction;
- the first groove comprises a first bottom and a first side wall;
- the first slider slides in the first groove along the first side wall to drive the first traction wire to move, wherein
- at least part of the outer wall of the first guide rail member is radially recessed to a center axis of the first guide rail member to form the first groove;
- or
- the first bottom of the first groove is at least part of an outer surface of the first guide rail member, and the first side wall is located on the outer surface of the first guide rail member;
- wherein a first fixing ring is arranged in the sheath body;
- the first fixing ring has a side wall comprising an outer surface and an inner surface in a radial direction;
- the side wall of the first fixing ring is provided with a first hole, a second hole, and a third hole;
- the first hole, the second hole and the third hole all penetrate through the outer surface and the inner surface;
- the second hole is closer to a distal end of the first fixing ring than the first hole and the third hole;
- a first connecting line is reserved between a center of the first hole and a center of the second hole, and a second connecting line is reserved between a center of the third hole and the center of the second hole;
- an obtuse angle is set between the first connecting line and the second connecting line;
- the proximal end of the first traction wire is connected to the first slider;
- and the distal end of the first traction wire passes through the first hole, the second hole, and the third hole in sequence or passes through the third hole, the second hole, and the first hole in sequence, then extends towards the proximal end, and is connected to the first slider again.
Dependencies are inferred from the claim text.