Mesh suture

• US 10,881,394 B2
• Filed: 09/13/2017
• Issued: 01/05/2021
• Est. Priority Date: 02/23/2012
• Status: Active Grant

• Current Assignee: Northwestern University
• Original Assignee: Northwestern University
• Inventors: Dumanian, Gregory, Gurjala, Anandev
• Primary Examiner(s): Miles, Wade
• Assistant Examiner(s): Rwego, Kankindi
• Application Number:
  US15/703,308
• Publication Number:
  US 20180021040A1
• Time in Patent Office: 1,210 Days
• CPC Class Codes: A61B 17/06 Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials puncturing needles A61B17/34; hypodermic needles A61M5/32 ; sewing needles D05B85/00
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0461 with features cooperating with special features on the suture, e.g. protrusions on the suture
• CPC Class Codes: A61B 2017/0464 for soft tissue
• CPC Class Codes: A61B 2017/0608 J-shaped
• CPC Class Codes: A61B 2017/061 hollow or tubular suture extending inside a hollow needle A61B2017/06052; hollow sutures A61B2017/06185
• CPC Class Codes: A61B 2017/06185 hollow or tubular hollow suture needles A61B2017/061
• CPC Class Codes: A61L 17/00 Materials for surgical sutures or for ligaturing blood vessels surgical adhesives A61L24/00; surgical instruments, devices or methods for suturing or ligaturing A61B17/04, A61B17/12; supports or packages for suture materials A61B17/04; Materials for prostheses or catheters bone cements or surgical adhesives for soft body tissues A61L24/00; shape or structure of prostheses A61F2/00; shape or structure of catheters A61M5/00
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A medical device includes a surgical needle attached to an elongated mesh suture. The suture is constructed of macroporous flat wall that facilitates and allows tissue integration into the suture core subsequent to introduction to the body, thereby preventing suture pull-through and improving biocompatibility.

Claims

1. A method of re-apposing soft tissue, the method comprising:

piercing a portion of the soft tissue with a surgical needle attached to a first end of an elongate mesh suture;

threading the elongate mesh suture through the portion of soft tissue to make a plurality of stiches,

wherein the elongate mesh suture comprises;

a second end located away from the surgical needle;

a flat wall having a length extending from the first end to the second end, and a cross-sectional rectangular shape with a uniform width and a uniform thickness that is smaller than the width; and

a plurality of pores extending through the flat wall, wherein each of the plurality of pores has a pore diameter of approximately 200 microns to approximately 4 mm, such that the plurality of pores are adapted to accommodate the portion of soft tissue growing through the flat wall, thereby integrating with the elongate mesh suture.

2. The method of claim 1, wherein the thickness of the flat wall is approximately 0.1 mm to approximately 1 cm.

3. The method of claim 1, further comprising anchoring the elongate mesh suture in place in the portion of soft tissue after threading the elongate mesh suture through the portion of soft tissue.

4. The method of claim 3, wherein anchoring the elongate mesh suture in place comprises:

passing the surgical needle through a closed loop anchor at the second end of the elongate mesh suture; and

creating a cinch for anchoring the elongate mesh suture to the portion of soft tissue.

5. A method of re-apposing soft tissue, the method comprising:

piercing a portion of the soft tissue with a surgical needle attached to a first end of an elongate mesh suture;

threading the elongate mesh suture through the portion of soft tissue, wherein the elongate mesh suture comprises;

a second end located away from the surgical needle;

a flat wall having a length extending from the first end to the second end, and a cross-sectional rectangular shape with a uniform width and a uniform thickness that is smaller than the width; and

a plurality of pores extending through the flat wall, wherein each of the plurality of pores has a pore diameter of approximately 200 microns to approximately 4 mm, such that the plurality of pores are adapted to accommodate the portion of soft tissue growing through the flat wall, thereby integrating with the elongate mesh suture; and

anchoring the elongate mesh suture in place in the portion of soft tissue after threading the elongate mesh suture through the portion of soft tissue, wherein anchoring the elongate mesh suture in place comprises;

passing the surgical needle through a closed loop anchor at the second end of the elongate mesh suture; and

creating a cinch for anchoring the elongate mesh suture to the portion of soft tissue.

6. The method of claim 5, wherein threading the elongate mesh suture through the portion of soft tissue comprises making a plurality of stitches.

7. The method of claim 5, wherein the thickness of the flat wall is approximately 0.1 mm to approximately 1 cm.