# US 10,342,654 B2 · IVC filter with translating hooks

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,342,654 B2
- Document ID: US10342654B2
- Status: Granted
- Kind: B2
- Application number: 15/831,273
- Filed: 2017-12-04
- Published: 2018-06-07
- Granted: 2019-07-09
- Earliest claimed: 2002-02-20
- Assignees: C.R. Bard, Inc.
- Applicants: C.R. Bard, Inc.
- Inventors: Andrzej J. Chanduszko; Scott L. Randall; William R. Bratt
- Web page: https://patentgrep.com/patent/US10342654B2

## CPC

- A61F 2/0105: {Open ended, i.e. legs gathered only at one side}
- A61F 2/0108: {Both ends closed, i.e. legs gathered at both ends}
- A61F 2002/016: {made from wire-like elements}
- A61F 2002/018: {made from tubes or sheets of material, e.g. by etching or laser-cutting}
- A61F 2210/0004: bioabsorbable
- A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol
- A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes
- A61F 2230/0008: elliptical or oval
- A61F 2230/005: Rosette-shaped, e.g. star-shaped
- A61F 2230/008: paraboloidal
- A61F 2250/0067: Means for introducing or releasing pharmaceutical products into the body
- A61F 2310/00017: Iron- or Fe-based alloys, e.g. stainless steel
- A61F 2310/00107: Palladium or Pd-based alloys
- A61F 2310/00113: Silver or Ag-based alloys
- A61F 2310/00143: Iridium or Ir-based alloys
- A61F 2310/00149: Platinum or Pt-based alloys
- A61F 2310/00155: Gold or Au-based alloys
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A filter with translating hooks is described. The filter can include strut members having first and second struts connected by a connecting portion. A translating hook is disposed adjacent the connecting portion of the strut members, the hook including a first elongate member attached at one end to the first strut and a second elongate member attached at one end to a second strut, the opposite ends of the elongate members connected together to define a tip. The translating hooks are configured to bend toward a central axis of the filter when the filter is in a collapsed configuration for delivery to a blood vessel and recovery from a blood vessel, and away from the central axis of the filter when the filter is in an expanded configuration within a blood vessel such that the hooks engage a vessel wall.

## Claims

### Claim 1

A filter hook system comprising:
a) a plurality of legs, each leg having proximal and distal leg end portions;
b) first and second struts, each strut having proximal and distal strut end portions, each strut connected to a said leg distal end portion at a proximal strut end portion;
c) each strut having a distal end portion connected to another strut distal end portion by a connecting portion;
d) said legs including first and second elongate j g members connected to each other at the proximal leg end portions and each leg connected at the distal leg end portions to the first and second struts; and
c) said first and second struts supporting one or more anchors at a position distally of the legs.

### Claim 2 (depends on 1)

The filter hook system of claim 1 wherein in a first position the proximal leg ends protrude from a plane's first side and in a second position the proximal leg ends protrude from the plane's opposite side.

### Claim 3 (depends on 2)

The filter hook system of claim 2 wherein the first and second struts have been adapted to connect to a hub.

### Claim 4 (depends on 3)

The filter hook system of claim 3 wherein the connecting portion has been adapted to connect to a bridge connected to a different connecting portion.

### Claim 5

A filter hook system comprising:
first and second struts connected by a connecting portion;
first and second elongate members connected to each other at first ends to form a tip and connected at second ends to the first and second struts; and
wherein the first and second struts define a variable included angle with a vertex on the connecting portion wherein smaller angles yield the tip situated in a plane of the struts and angle variation to larger included angles yields the tip protruding from the plane.

### Claim 6 (depends on 5)

The filter hook system of claim 5 wherein the tip and the elongate members are biased.

### Claim 7 (depends on 6)

The filter hook system of claim 6 wherein the tip, the elongate members, and the struts are a biased assembly.

### Claim 8 (depends on 7)

The filter hook system of claim 7 wherein, the plane has a first side and an opposite side, and wherein in a first position the tip protrudes from the plane's first side and in a second position the tip protrudes from the plane's opposite side.

### Claim 9 (depends on 8)

The filter hook system of claim 8 wherein the first and second struts have been adapted to connect to a hub.

### Claim 10 (depends on 9)

The filter hook system of claim 9 wherein the hub comprises spacer wires.

### Claim 11 (depends on 10)

The filter hook system of claim 10 wherein the connecting portion has been adapted to connect to a bridge connected to a different connecting portion.

### Claim 12 (depends on 11)

The filter hook system of claim 11 that has been adapted for a vascular filter.

### Claim 13 (depends on 12)

The filter hook system of claim 12 that has been adapted for a retrievable vascular filter.

### Claim 14 (depends on 13)

The filter hook system of claim 13 wherein the hub comprises a retrieval member.

### Claim 15 (depends on 9)

The filter hook system of claim 9 wherein the hub comprises spacer wires.

### Claim 16 (depends on 15)

The filter hook system of claim 15 wherein the first and second struts have been adapted for a vascular filter.

### Claim 17 (depends on 16)

The filter hook system of claim 16 wherein the first and second struts have been adapted for a retrievable vascular filter.

### Claim 18 (depends on 9)

The filter hook system of claim 9 that has been adapted for a vascular filter.

### Claim 19 (depends on 18)

The filter hook system of claim 18 that has been adapted for a retrievable vascular filter.

### Claim 20

A filter hook system comprising a biased assembly comprising:
first and second struts connected by a connecting portion;
first and second elongate members connected to each other at first ends to form a tip and connected at second ends to the first and second struts;
wherein
the first and second struts define a variable included angle with a vertex on the connecting portion wherein smaller angles yield the tip situated in a plane of the struts, the plane having a first side and an opposite side, and angle variation to larger included angles yields the tip protruding from the plane,
in a first position the tip protrudes from the plane's first side
in a second position the tip protrudes from the plane's opposite side,
the first and second struts have been adapted to connect to a hub comprising a retrieval member and spacer wires,
and
the system has been adapted for a retrievable vascular filter.
