Securing a marker wire

Patent metadata

Field	Value
Publication number	US-10384077-B2
Application number	US-201113083719-A
Country	US
Kind code	B2
Filing date	Apr 11, 2011
Priority date	Apr 11, 2011
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

An apparatus for securing a marker wire relative to a lumen includes a hub to which the marker wire is secured. The hub includes a feature that secures the hub to an outer surface of the lumen. For example, the hub may include a base member secured to the marker wire and a separate fastener member which secures the hub to an outer surface of a lumen, where the base member includes a split tube segment that receives the lumen within an inner cylindrical opening. Alternatively, the hub may include a cylindrical slide lock collar member with a split tubular extension that receives the lumen within an inner cylindrical opening. Locking features may be included to help fix the two pieces of the hub in position relative to each other.

First claim

What is claimed is:

1. A medical imaging marking apparatus comprising:
a marker wire configured to mark a subcutaneous site;
a hub comprising:
a base member defining an inner cylindrical opening adapted to receive the marker wire and comprising:
a split tube segment comprising a relaxed outer diameter; and
an unsplit tube segment adjacent the split tube segment and comprising an unsplit outer diameter greater than the relaxed outer diameter and comprising a circular protrusion on an outer surface of the unsplit tube segment; and

a cylindrical fastener member adapted to receive the base member, wherein the cylindrical fastener member comprises:
an end defining an opening for receiving the split tube segment, wherein the cylindrical fastener opening comprises a diameter less than the relaxed outer diameter of the split tube segment, such that receipt of the split tube segment into the cylindrical fastener opening compresses the split tube segment so as to secure the marker wire; and
a circular detent disposed an inner surface of the cylindrical fastener member.

2. The apparatus of claim 1 , wherein the circular protrusion fixes the cylindrical fastener member relative to the unsplit tube segment.

3. The apparatus of claim 1 wherein the hub is constructed from one or more of metallics such as nickel titanium (Nitinol), polyurethane, nylon, Polyether Block Amide (PEBA), Low-density polyethylene (LDPE), thermoplastic polyester elastomers, or PolyEtherEther-Ketone (PEEK).

4. The apparatus of claim 1 wherein the marker wire is imagable via at least one modality selected from a group including sonic, electromagnetic and magnetic resonance imaging techniques.

5. The apparatus of claim 1 , wherein the split tube segment is slidably received in the opening defined by the end of the cylindrical fastener member.

6. The apparatus of claim 1 , wherein the unsplit segment defines the inner cylindrical opening.

7. The apparatus of claim 6 , wherein the marker wire is received within the inner cylindrical opening of the unsplit segment.

8. The apparatus of claim 1 , wherein the cylindrical fastener member defines an inner cylindrical opening having an inner diameter approximately equal to the unsplit outer diameter.

Assignees

• Benson Maria
• Hologic Inc

Inventors

• Benson Maria

Classifications

• A61B8/0841

  for locating instruments · CPC title

• A61B2090/3987

  Applicators for implanting markers · CPC title

• A61N5/1027 Primary

  Interstitial radiation therapy · CPC title

• A61B90/39

  Markers, e.g. radio-opaque or breast lesions markers · CPC title

• A61N5/1049

  for verifying the position of the patient with respect to the radiation beam · CPC title