Selectively openable tissue filter

• US 7,556,622 B2
• Filed: 05/18/2005
• Issued: 07/07/2009
• Est. Priority Date: 05/18/2005
• Status: Active Grant

• Current Assignee: Suros Surgical Systems Incorporated (Hologic Incorporated)
• Original Assignee: Suros Surgical Systems Incorporated (Hologic Incorporated)
• Inventors: Mark, Joseph L., Nicoson, Zachary R., Hardin, Terry D.
• Primary Examiner(s): Zalukaeva; Tatyana
• Assistant Examiner(s): Craig; Paula L
• Application Number:
  US11/132,034
• Publication Number:
  US 20060260994A1
• Time in Patent Office: 1,511 Days
• Field of Search: 604/319, 600565-567
• US Class Current: 604/319
• CPC Class Codes: A61B 10/0275 with sample notch, e.g. on the side of inner stylet
• CPC Class Codes: A61B 10/0283 with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe A61B10/025, A61B10/0266 take precedence

Abstract

A tissue filter for medical collection is disclosed. The tissue filter includes a first member, a second member, and filter material secured thereto. The first and second members are selectively engaged with one another to define a filter body having a collection cavity. The collection cavity is open at one end for tissue to flow into the collection cavity. The first member and the second member may be selectively separated to facilitate tissue removal from the collection cavity.

Claims

1. A tissue filter assembly comprising:

a filter body having a first half, a second half, and a hinge;

the hinge engaging a portion of the first half and a portion of the second half so as to hingedly connect the first and second halves together such that the first and the second halves are selectively movable relative to each other between an open configuration and a closed configuration;

the first half and the second half cooperating to provide a tissue structure collection cavity and at least one opening into the tissue structure collection cavity when the first half and the second half are in the closed configuration; and

a filter material engaged with said filter body within the tissue structure collection cavity the filter material and the filter body together creating a tissue collecting boundary when the filter body is in the closed configuration, and wherein the filter material is engaged such that the opening remains uncovered to permit tissue structures to enter the filter body, the filter material only partially filling the tissue collection cavity;

wherein the filter material and the filter body both open together when urged into the open configuration; and

where selective access to the tissue structure collection cavity is provided when the first half and the second half are in the open configuration such as to permit removal of tissue structures collected in the tissue collection cavity.

2. The tissue filter assembly of claim 1, further comprising:

clasps associated with the first and second halves, said clasps cooperating to selectively engage the first half with said second half to releasably secure the first half and the second half in the closed configuration.

3. The tissue filter assembly of claim 1, further comprising:

an aperture located on the second half; and

a key disposed upon the first half and cooperatively received by the aperture, whereby said key assists in the engagement of the first half with the second half.

4. The tissue filter assembly of claim 1, wherein said filter material is engaged between said first half and said second half such that said filter material connects said first half and said second half together.

5. The tissue filter assembly of claim 1, further comprising:

a canister substantially surrounding said filter body;

whereby said canister includes a generally hollow body, a largely open first end and a largely closed second end, said canister being adapted for selectively engaging a surgical device.

6. The tissue filter assembly of claim 5 wherein said largely closed end includes a vacuum port adapted for securement to a vacuum source.

7. The tissue filter assembly of claim 1, further comprising:

an intermediate support disposed within the tissue structure collection cavity.

8. The tissue filter assembly of claim 7, further comprising:

at least one intermediate spacer disposed on the outside of said intermediate support;

whereby said at least one intermediate spacer provides a gap between said filter and the inside of a canister.

9. The tissue filter assembly of claim 1 wherein the filter material is engaged with the first half and the second half of the filter body whereby said filter body is selectively opened such that access to said interior of the filter material is provided.