US 12,433,637 B2
Implant insertion device
Hidenori Tanabe, Naka-gun (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 14, 2021, as Appl. No. 17/474,970.
Application 17/474,970 is a continuation of application No. PCT/JP2020/006452, filed on Feb. 19, 2020.
Claims priority of application No. 2019-049245 (JP), filed on Mar. 18, 2019.
Prior Publication US 2021/0401461 A1, Dec. 30, 2021
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3468 (2013.01) [A61B 17/3417 (2013.01); A61B 17/3496 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An implant insertion device comprising:
an introduction needle comprising a puncture portion formed of an inclined surface that is inclined with respect to an axial direction of the introduction needle, the puncture portion having a sharp needle tip that is insertable into subcutaneous tissue;
an elongated implant made of collagen fiber, wherein the elongated implant is configured to promote tissue regeneration by attachment of cells; and
a tubular implant cover that covers an outer side of the introduction needle,
wherein a space extending in an axial direction is located between the tubular implant cover and the introduction needle, and the elongated implant is arranged in the space, the space comprising a first groove that extends along an entirety of the introduction needle and is a part of the introduction needle.
 
12. An implant insertion device comprising:
an introduction needle comprising a puncture portion formed of an inclined surface that is inclined with respect to an axial direction of the introduction needle, the puncture portion having a sharp needle tip that is insertable into subcutaneous tissue; and
a tubular implant cover that covers an outer side of the introduction needle, wherein a distal portion of the tubular implant cover comprises a frustoconical surface having an outer diameter that decreases toward a distal side of the tubular implant cover;
wherein a space extending in an axial direction is located between the tubular implant cover and the introduction needle, the space being configured to accommodate an elongated implant, the space comprising a first groove that extends along an entirety of the introduction needle as a part of the introduction needle and extends proximally from the inclined surface of the puncture portion.
 
17. A method for inserting an elongated implant, the method comprising:
providing an implant insertion device comprising:
an introduction needle comprising a puncture portion formed of an inclined surface that is inclined with respect to an axial direction of the introduction needle, the puncture portion having a sharp needle tip that is insertable into subcutaneous tissue,
an elongated implant made of collagen fiber, the elongated implant configured to promote tissue regeneration by attachment of cells, and
a tubular implant cover that covers an outer side of the introduction needle,
wherein a space extending in an axial direction is located between the tubular implant cover and the introduction needle, and the elongated implant is arranged in the space, wherein the space comprises a groove that extends along an entirety of the introduction needle and is a part of the introduction needle;
puncturing a skin of an individual using the sharp needle tip of the introduction needle and advancing the introduction needle and the tubular implant cover into the subcutaneous tissue; and
pulling the tubular implant cover out from the skin while the elongated implant remains implanted in the subcutaneous tissue.