# US 2018/0153673 A1 · IVC Filter with Translating Hooks

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- Number: US 2018/0153673 A1
- Document ID: US20180153673A1
- Status: Published application
- Kind: A1
- Application number: 15/831,273
- Filed: 2017-12-04
- Published: 2018-06-07
- 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/US20180153673A1

## 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 at position 1

1-19. (canceled)

### Claim 20

A filter hook system comprising:
first and second struts connected by a connecting portion;
and
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.

### Claim 21 (depends on 20)

The filter hook system of claim 20 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 22 (depends on 21)

The filter hook system of claim 21 wherein the tip and the elongate members are biased.

### Claim 23 (depends on 22)

The filter hook system of claim 22 wherein the tip, the elongate members, and the struts are a biased assembly.

### Claim 24 (depends on 23)

The filter hook system of claim 23 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 25 (depends on 24)

The filter hook system of claim 24 wherein the first and second struts have been adapted to connect to a hub.

### Claim 26 (depends on 25)

The filter hook system of claim 25 wherein the hub comprises spacer wires.

### Claim 27 (depends on 26)

The filter hook system of claim 26 wherein the connecting portion has been adapted to connect to a bridge connected to a different connecting portion.

### Claim 28 (depends on 27)

The filter hook system of claim 27 that has been adapted for a vascular filter.

### Claim 29 (depends on 28)

The filter hook system of claim 28 that has been adapted for a retrievable vascular filter.

### Claim 30 (depends on 29)

The filter hook system of claim 29 wherein the hub comprises a retrieval member.

### Claim 31 (depends on 25)

The filter hook system of claim 25 wherein the hub comprises spacer wires.

### Claim 32 (depends on 31)

The filter hook system of claim 31 wherein the first and second struts have been adapted for a vascular filter.

### Claim 33 (depends on 32)

The filter hook system of claim 32 wherein the first and second struts have been adapted for a retrievable vascular filter.

### Claim 34 (depends on 25)

The filter hook system of claim 25 that has been adapted for a vascular filter.

### Claim 35 (depends on 34)

The filter hook system of claim 34 that has been adapted for a retrievable vascular filter.

### Claim 36 (depends on 20)

The filter hook system of claim 20 wherein in a first position the tip protrudes from a plane's first side and in a second position the tip protrudes from the plane's opposite side.

### Claim 37 (depends on 36)

The filter hook system of claim 36 wherein the first and second struts have been adapted to connect to a hub.

### Claim 38 (depends on 37)

The filter hook system of claim 37 wherein the connecting portion has been adapted to connect to a bridge connected to a different connecting portion.

### Claim 39

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 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.
