# US 2014/0194911 A1 · Connection of a manipulation member, including a bend without substantial surface cracks, to an endovascular intervention device

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- Number: US 2014/0194911 A1
- Document ID: US20140194911A1
- Status: Published application
- Kind: A1
- Application number: 13/835,130
- Filed: 2013-03-15
- Published: 2014-07-10
- Earliest claimed: 2013-01-09
- Assignees: Covidien LP
- Inventors: Garrett JOHNSON; Joachim BUSS
- Web page: https://patentgrep.com/patent/US20140194911A1

## CPC

- A61B 17/32056: {Surgical snare instruments (for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26)}
- A61B 17/22: Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- 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)}
- A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts
- A61M 25/0021: {characterised by the form of the tubing (A61M25/0054 takes precedence)}
- A61M 25/0108: {using radio-opaque or ultrasound markers}
- A61M 25/104: {used for angioplasty}
- A61B 2017/00526: {Methods of manufacturing}
- A61B 2017/00623: {Introducing or retrieving devices therefor}
- A61B 2017/12054: {Details concerning the detachment of the occluding device from the introduction device}
- A61M 2025/0042: {Microcatheters, cannula or the like having outside diameters around 1 mm or less}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A device for intravascular intervention can comprise an intervention element, an elongate manipulation member, and a joining element. The elongate element can comprise a hooked portion extending about a proximal portion of the intervention element. The hooked portion can comprise a bend. The hooked portion can have (i) no substantial surface crack at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch. The joining element can substantially permanently attach the hooked portion to the intervention element.

## Claims

### Claim 1

A device for intravascular intervention, the device comprising:
an intervention element;
an elongate manipulation member comprising a hooked portion extending about a proximal portion of the intervention element, the hooked portion comprising a bend, the hooked portion having (i) no substantial surface crack at an interior region of the bend and (ii) a maximum lateral dimension that is less than 0.027 inch; and
a joining element substantially permanently attaching the hooked portion to the intervention element.

### Claim 2 (depends on 1)

The device of claim 1, wherein the hooked portion comprises no surface crack that is (i) at the bend and (ii) discernable, by a normal human eye, under 10× magnification.

### Claim 3 (depends on 2)

The device of claim 2, wherein the bend has a radius that is less than double a maximum cross-sectional dimension of the elongate member in the bend.

### Claim 4 (depends on 3)

The device of claim 3, wherein the bend has a radius that is less than the maximum cross-sectional dimension of the elongate member in the bend.

### Claim 5 (depends on 1)

The device of claim 1, wherein the maximum lateral dimension is less than 0.021 inch.

### Claim 6 (depends on 5)

The device of claim 5, wherein the maximum lateral dimension is less than 0.015 inch.

### Claim 7 (depends on 1)

The device of claim 1, wherein the hooked portion comprises no surface crack at the bend.

### Claim 8 (depends on 1)

The device of claim 1, wherein the hooked portion comprises no surface crack at an exterior region of the bend.

### Claim 9 (depends on 1)

The device of claim 1, wherein the elongate member has a maximum cross-sectional dimension that is less than 0.007 inch along the hooked portion.

### Claim 10 (depends on 1)

The device of claim 1, wherein the joining element comprises a band that substantially surrounds at least a section of the elongate member and a segment of the intervention element.

### Claim 11 (depends on 1)

The device of claim 1, further comprising a binding agent engaging each of the intervention element, the elongate member, and the joining element.

### Claim 12

A device for intravascular intervention, the device comprising:
an elongate manipulation member comprising a distally-located attachment portion, the attachment portion comprising a first segment, a second segment, and a bend, without any substantial surface crack, located between the first and second segments, the attachment portion having a maximum lateral dimension that is less than 4 times a maximum cross-sectional dimension of the elongate member along the attachment portion;
an intervention element comprising a proximal end portion and a hole through the proximal end portion, the attachment portion of the elongate member extending through the hole at the bend such that the first segment and the second segment are located on different sides of the proximal end portion, the intervention element being substantially permanently attached to the elongate delivery member.

### Claim 13 (depends on 12)

The device of claim 12, wherein the hooked portion comprises no surface crack that is (i) at the bend and (ii) discernable, by a normal human eye, under 10× magnification.

### Claim 14 (depends on 13)

The device of claim 13, wherein the bend has a radius that is less than double a maximum cross-sectional dimension of the elongate member in the bend.

### Claim 15 (depends on 14)

The device of claim 14, wherein the bend has a radius that is less than the maximum cross-sectional dimension of the elongate member in the bend.

### Claim 16 (depends on 12)

The device of claim 12, wherein the hooked portion has a maximum lateral dimension that is less than 0.07 mm.

### Claim 17 (depends on 16)

The device of claim 16, wherein the maximum lateral dimension is less than 0.05 mm.

### Claim 18 (depends on 17)

The device of claim 17, wherein the maximum lateral dimension is less than 0.04 mm.

### Claim 19 (depends on 12)

The device of claim 12, further comprising a band, wherein the band substantially surrounds at least a section of the attachment portion of the elongate member and a segment of the proximal portion of the intervention element.

### Claim 20 (depends on 12)

The device of claim 12, further comprising a binding agent attached to the elongate member and the intervention element.

### Claim 21 (depends on 20)

The device of claim 20, further comprising a band, wherein the band substantially surrounds the distal portion of the elongate member and a portion of the proximal end of the intervention element.

### Claim 22 (depends on 12)

The device of claim 12, wherein the first segment and the second segment extend generally parallel to each other.

### Claim 23 (depends on 22)

The device of claim 22, wherein the elongate manipulation member further comprises a proximal terminal end and a distal terminal end, and the distal terminal end is proximal of the bend of the attachment portion.

### Claim 24 (depends on 12)

The device of claim 12, wherein the elongate member is metallic.

### Claim 25 (depends on 12)

The device of claim 12, wherein the elongate member comprises nickel titanium alloy.

### Claim 26 (depends on 12)

The device of claim 12, wherein the elongate member further comprises a polymer coating over at least a portion thereof.

### Claim 27

A method of using a device, the device comprising an intervention element, an elongate manipulation member comprising a distally-located hooked attachment portion extending about a proximal portion of the intervention element, the attachment portion comprising a first segment, a second segment, and a bend between the first and second segments, the bend having no substantial surface crack, the attachment portion having a maximum lateral dimension that is less than 4 times a maximum cross-sectional dimension of the elongate member along the attachment portion, and a joining element substantially permanently attaching the attachment portion to the intervention element, the method comprising:
inserting the intervention element into a cerebral blood vessel using the elongate member;
manipulating the device to perform a therapy;
removing the intervention element from the cerebral blood vessel using the elongate member.

### Claim 28 (depends on 27)

The method of claim 27, wherein:
the intervention element comprises a hole through the proximal portion; and
the attachment portion extending through the hold at the bend such that the first segment and the second segment are located on different sides of the proximal portion.

### Claim 29 (depends on 27)

The method of claim 27, wherein the device is inserted through a microcatheter.

### Claim 30 (depends on 27)

The method of claim 27, wherein the removing is performed by proximally pulling the elongate member such that the intervention element is retracted into a microcatheter.

### Claim 31 (depends on 27)

The method of claim 27, wherein the manipulating comprises deploying the intervention element to an expanded position.

### Claim 32 (depends on 31)

The method of claim 31, wherein the deploying comprises substantially maintaining a location of the intervention element while retracting a microcatheter from over the intervention element.

### Claim 33 (depends on 31)

The method of claim 31, wherein the manipulating further comprises restoring blood flow through an obstructed portion of the cerebral blood vessel.

### Claim 34 (depends on 31)

The method of claim 31, wherein the manipulating further comprises capturing a thrombus.

### Claim 35 (depends on 34)

The method of claim 34, wherein the removing the intervention element comprises removing the captured thrombus from the cerebral blood vessel.