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US 12,171,648 B2Granted
Filter
AssigneeLifetech Scientific (Shenzhen) Co., Ltd.
InventorsXiaole Jia, Huiqiang Tang, Anning Li
Life of this patent
Estimating the term…
Abstract
A filter, including a main body part. The main body part includes a heart-proximal end, a plurality of connecting segments, and a first filter mesh connecting between the heart-proximal end and the plurality of connecting segments. An end of the connecting segments that is connected to the first filter mesh is bent towards a central longitudinal axis of the filter to form a bending part. A vertical distance between a proximal end of the bending part and the central longitudinal axis of the filter is less than a vertical distance between a distal end of the bending part and the central longitudinal axis of the filter.
Claims18
A filter, comprising:
- a main body part, the main body part comprising a heart-proximal end, a plurality of connecting segments, and a first filter mesh connected between the heart-proximal end and the plurality of connecting segments,
- wherein one end, connected to the first filter mesh, of the plurality of connecting segments is bent towards one side of a longitudinal center axis of the filter to form a bending part, and a vertical distance between the proximal end of the bending part and the longitudinal center axis of the filter is less than a vertical distance between the distal end of the bending part and the longitudinal center axis of the filter;
- wherein the first filter mesh comprises a plurality of first branch segments, each of the plurality of first branch segments has a distal end away from the heart-proximal end, two adjacent distal ends of the plurality of first branch segments converge to form a distal end of the first filter mesh, and the distal end of the first filter mesh is directly connected to the bending part;
- wherein the bending part further comprises a first bending segment and a second bending segment which are connected, the first bending segment is connected between the distal end of the first filter mesh and a proximal end of the second bending segment, the first bending segment comprises a straight segment parallel to the longitudinal center axis of the filter, and a vertical distance between the proximal end of the second bending segment and the longitudinal center axis of the filter is less than a vertical distance between a distal end of the second bending segment and the longitudinal center axis of the filter;
- wherein a ratio of a distance between the proximal end of the bending part and the distal end of the bending part in the direction of the longitudinal center axis of the filter to a distance between both ends of each of the plurality of connecting segments in the direction of the longitudinal center axis of the filter is 1/20-⅗;
- and
- wherein the main body part further comprises a heart-distal end and a second filter mesh connected between the heart-distal end and the plurality of the connecting segments.
4 more elements
A filter, comprising:
- a main body part and a plurality of support parts, the support parts comprising at least one support, the at least one support comprising a guide segment connected to the main body part,
- wherein under a natural release state of the filter, an included angle between a connecting line between both ends of the guide segment and a longitudinal center axis of the filter is 20°-85°, and a ratio of a height of the at least one support in a radial direction of the filter to a maximum distance between the at least one support and the longitudinal center axis of the filter is ⅛-⅓;
- wherein the main body part comprises a heart-proximal end, a plurality of connecting segments, and a first filter mesh connected between the heart-proximal end and the plurality of connecting segments,
- wherein one end, connected to the first filter mesh, of the plurality of connecting segments is bent towards one side of the longitudinal center axis of the filter to form a bending part, and a vertical distance between the proximal end of the bending part and the longitudinal center axis of the filter is less than a vertical distance between the distal end of the bending part and the longitudinal center axis of the filter,
- wherein the first filter mesh comprises a plurality of first branch segments, each of the plurality of first branch segments has a distal end away from the heart-proximal end, two adjacent distal ends of the plurality of first branch segments converge to form a distal end of the first filter mesh, and the distal end of the first filter mesh is directly connected to the bending part;
- wherein the bending part further comprises a first bending segment and a second bending segment which are connected, the first bending segment is connected between the distal end of the first filter mesh and a proximal end of the second bending segment, the first bending segment comprises a straight segment parallel to the longitudinal center axis of the filter, and a vertical distance between the proximal end of the second bending segment and the longitudinal center axis of the filter is less than a vertical distance between a distal end of the second bending segment and the longitudinal center axis of the filter;
- wherein a ratio of a distance between the proximal end of the bending part and the distal end of the bending part in the direction of the longitudinal center axis of the filter to a distance between both ends of each of the plurality of connecting segments in the direction of the longitudinal center axis of the filter is 1/20-⅗;
- and
- wherein the main body part further comprises a heart-distal end and a second filter mesh connected between the heart-distal end and the plurality of the connecting segments.
6 more elements
A filter, comprising:
- a main body part, the main body part comprising a heart-proximal end, a plurality of connecting segments, and a first filter mesh connected between the heart-proximal end and the plurality of connecting segments,
- wherein one end, connected to the first filter mesh, of the plurality of connecting segments is bent towards one side of a longitudinal center axis of the filter to form a bending part, and a vertical distance between the proximal end of the bending part and the longitudinal center axis of the filter is less than a vertical distance between the distal end of the bending part and the longitudinal center axis of the filter;
- wherein the first filter mesh comprises a plurality of first branch segments, each of the plurality of first branch segments has a distal end away from the heart-proximal end, two adjacent distal ends of the plurality of first branch segments converge to form a distal end of the first filter mesh, and the distal end of the first filter mesh is directly connected to the bending part;
- wherein the bending part further comprises a first bending segment and a second bending segment which are connected, the first bending segment is connected between the distal end of the first filter mesh and a proximal end of the second bending segment, the first bending segment consists of a straight segment parallel to the longitudinal center axis of the filter, and a vertical distance between the proximal end of the second bending segment and the longitudinal center axis of the filter is less than a vertical distance between a distal end of the second bending segment and the longitudinal center axis of the filter;
- and
- wherein the first bending segment is directly connected to the distal end of the first filter mesh.
3 more elements
Dependencies are inferred from the claim text.