Tissue collection and delivery device and methods of use thereof

• US 10,639,046 B2
• Filed: 07/15/2019
• Issued: 05/05/2020
• Est. Priority Date: 01/26/2018
• Status: Active Grant

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: Torrie, Paul Alexander, Krause, Kenneth W.
• Primary Examiner(s): Woodall, Nicholas W
• Application Number:
  US16/511,603
• Publication Number:
  US 20190336142A1
• Time in Patent Office: 295 Days
• Field of Search: None
• CPC Class Codes: A61B 10/0233 Pointed or sharp biopsy instruments
• CPC Class Codes: A61B 17/1615 Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
• CPC Class Codes: A61B 17/162 Chucks or tool parts which are to be held in a chuck
• CPC Class Codes: A61B 17/1622 Drill handpieces A61B17/1626, A61B17/1628 take precedence
• CPC Class Codes: A61B 17/1631 Special drive shafts, e.g. flexible shafts A61B17/1642, A61B17/164 take precedence
• CPC Class Codes: A61B 17/1635 for grafts, harvesting or transplants
• CPC Class Codes: A61B 17/1646 with sealing means
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00464 for use with different instruments
• CPC Class Codes: A61B 2017/00969 used for transplantation
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61M 2202/09 Body tissue
• CPC Class Codes: A61M 5/3145 Filters incorporated in syringes
• CPC Class Codes: A61M 5/31596 comprising means for injection of two or more media, e.g. by mixing
• CPC Class Codes: C12M 45/02 by mechanical forces; Stirring; Trituration; Comminuting crushing, pulverizing, disintegrating in general B02C

Abstract

A system and method for harvesting autologous tissue, mincing it into fragments that are visible and measurable when filtered, and delivering a portion of the tissue back into the patient without the need to directly touch the tissue. During the same surgical procedure, the tissue can be mixed with a biocompatible agent before introduction into the repair site.

Claims

1. A tissue collection assembly comprising:

a resection system comprising;

a handpiece having a proximal end, a distal end, and a passageway therethrough;

a cannulated shaft attached to the distal end of the handpiece in fluid communication with the passageway, a distal end of the shaft comprising a cutting end; and

a filter assembly removeably attached to the proximal end of the handpiece in fluid communication with the cannulated shaft via a tube extending from the proximal end of the handpiece such that a distal end of the filter assembly is spaced apart from the proximal end of the handpiece, the filter assembly comprising;

a housing allowing direct visualization of an internal volume of the housing; and

a filter disposed within the internal volume of the housing for collecting tissue on a surface of the filter.

2. The assembly of claim 1, further comprising a compressor extendable through the internal volume of the housing for compressing the collected tissue;

wherein the handpiece further comprises rigid tubing and a barb in fluid communication with the filter assembly, and wherein the compressor comprises an inlet for removeable attachment to the barb.

3. The assembly of claim 1, wherein the housing comprises a removeable outlet for attachment to a vacuum source, and wherein the filter is coupled to the outlet such that the filter and the outlet are removeable from the housing simultaneously.

4. The assembly of claim 1, wherein the housing further comprises a shearing member slidably disposed around the filter for removing the collected tissue from the filter.

5. The assembly of claim 1, wherein the resection system further comprises a flexible shield adjacent the cutting end of the shaft.

6. The assembly of claim 1, wherein the handpiece is a motorized drive unit and the assembly further includes a finger-engageable lever on a surface of the handpiece to control flow of the fragments through the passageway of the handpiece.

7. The assembly of claim 1, wherein the handpiece comprises at least one internal structure to prevent contamination of the collected tissue by the handpiece.

8. The assembly of claim 7, wherein the at least one internal structure is one of a flow diverter and a sleeve integrated with the passageway of the handpiece.

9. The assembly of claim 1, further comprising one or more deformable wires for mixing the collected tissue with a biocompatible agent.

10. The assembly of claim 1, wherein the filter is a hollow, tubular filter, and the surface of the filter comprises holes in communication with an interior of the filter.

11. The assembly of claim 1, wherein the filter assembly is coupleable with a delivery device to deliver the collected tissue to a repair site.