# US 2013/0158592 A1 · Embolectomy cage

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- Number: US 2013/0158592 A1
- Document ID: US20130158592A1
- Status: Published application
- Kind: A1
- Application number: 13/707,375
- Filed: 2012-12-06
- Published: 2013-06-20
- Earliest claimed: 2011-12-16
- Assignees: Stryker NV Operations Limited; Stryker Corporation
- Inventors: Stephen C. Porter
- Web page: https://patentgrep.com/patent/US20130158592A1

## CPC

- A61B 17/221: Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)}
- A61B 2017/22001: {Angioplasty, e.g. PCTA}
- A61B 2017/22034: {for gripping the obstruction or the tissue part from inside}
- A61B 2017/22094: {for crossing total occlusions, i.e. piercing}
- A61B 2017/2212: {having a closed distal end, e.g. a loop}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An embolectomy cage having an elongate axis and a circumference comprises a plurality of paired, closely spaced, substantially parallel, elongate members collectively defining a plurality of open cells, wherein individual elongate members of the pairs are connected at nodes located between respective pairs of axially adjacent cells and circumferentially adjacent cells, and wherein at least one elongate member spans each node without forming a connection to another elongate member.

## Claims

### Claim 1

An embolectomy cage having an elongate axis and a circumference, comprising:
a plurality of paired, closely spaced, substantially parallel, elongate members collectively defining a plurality of open cells,
wherein individual elongate members of the pairs are connected at nodes located between respective pairs of axially adjacent cells and circumferentially adjacent cells, and
wherein at least one elongate member spans each node without forming a connection to another elongate member.

### Claim 2 (depends on 1)

The embolectomy cage of claim 1, wherein two pairs of elongate members intersect at each node, with an elongate member of each pair spanning the respective node without forming a connection to another elongate member.

### Claim 3 (depends on 1)

The embolectomy cage of claim 1, wherein one elongate member of each pair is more flexible than the other.

### Claim 4 (depends on 1)

The embolectomy cage of claim 1, wherein the elongate members of each pair have different cross-sectional geometries.

### Claim 5 (depends on 1)

The embolectomy cage of claim 1, each cell comprising a first region bordered by one or more pairs of elongate members, and a second region bordered by one or more unpaired elongate members.

### Claim 6 (depends on 1)

The embolectomy cage of claim 1, each cell comprising a first region bordered by proximal pairs of elongate members, and a second region bordered by distal pairs of elongate members.

### Claim 7 (depends on 6)

The embolectomy cage of claim 6, wherein the respective elongate members of the proximal and distal pairs are substantially the same length.

### Claim 8 (depends on 7)

The embolectomy cage of claim 7, wherein the elongate members of the proximal pairs have greater lengths than the elongate members of the distal pairs.

### Claim 9 (depends on 7)

The embolectomy cage of claim 7, wherein the elongate members of the distal pairs have greater lengths than the elongate members of the proximal pairs.

### Claim 10 (depends on 1)

The embolectomy cage of claim 1, wherein each pair of elongate members forms a boundary between two adjacent cells.

### Claim 11 (depends on 1)

The embolectomy cage of claim 1, wherein the cells are ovoid in shape.

### Claim 12 (depends on 1)

The embolectomy cage of claim 1, wherein the cells are hexagonal in shape.

### Claim 13 (depends on 1)

The embolectomy cage of claim 1, the cells are substantially uniform in shape.

### Claim 14 (depends on 1)

The embolectomy cage of claim 1, wherein two elongate members connect at each node.

### Claim 15 (depends on 1)

The embolectomy cage of claim 1, wherein three elongate members connect at each node.

### Claim 16 (depends on 1)

The embolectomy cage of claim 1, wherein four elongate members connect at each node.

### Claim 17 (depends on 1)

The embolectomy cage of claim 1, wherein two elongate members span each node without forming a connection to another elongate member.

### Claim 18

An embolectomy cage having an elongate axis, comprising:
a plurality of paired, closely spaced, substantially parallel, elongate members, each pair defining a slot between them,
the pairs of elongate members collectively defining a plurality of cells,
wherein individual elongate members of each of two pairs are connected at nodes between axially adjacent cells, and wherein the slots defined by the respective pairs span the node.

### Claim 19

An embolectomy cage having an elongate axis and a circumference, comprising:
a plurality of sets of closely spaced, substantially parallel, elongate members collectively defining a plurality of open cells,
wherein each set comprises at least two elongate members,
wherein individual elongate members of the sets are connected at nodes located between respective pairs of axially adjacent cells and circumferentially adjacent cells, and
wherein at least one elongate member spans each node without forming a connection to another elongate member.