US 12,029,655 B2Granted

Laterally deflectable implant

AssigneeSeaSpine, Inc.

InventorsTzony Siegal, Oded Loebl, Didier Toubia

Life of this patent

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Abstract

A laterally deflectable asymmetric implant for implanting into a body may comprise a deflectable piece having distal and proximal ends and assuming a straightened insertion state. The backbone may abut or interconnect with said deflectable piece at the distal end of the deflectable piece. In a fully deflected state the implant may define an asymmetric shape, e.g. a D-shaped loop, defining an at least partially enclosed volume. The deflectable piece may comprise a sequence of segments interconnected at effective hinges. Longitudinal pressure applied to the proximal end of the deflectable piece (or applied to the backbone in an opposite direction) may cause relative longitudinal movement between the backbone and the proximal end of the deflectable piece and may generate outward horizontal movement of the deflectable piece away from the backbone. In one embodiment, the implant is implanted using lateral access into an anterior zone of a vertebra and deployed posteriorly.

Claims20

Dependent claims

An expanding implant for insertion between two regions of tissue, the implant comprising:

a base having a contact surface for contacting a first region of tissue, said base comprising a proximal portion having said contact surface and a distal portion having said contact surface interconnected so as to undergo linear relative motion, said base assuming an initial length and being shortened towards a second length by linear relative motion of said proximal portion towards said distal portion, and wherein said base is configured not to deflect when undergoing the linear relative motion;
a deflectable piece having a first rigid linking segment, a second rigid linking segment, and an intermediate portion, wherein said deflectable piece in a fully deflected state defines, together with said base, an asymmetric loop, and wherein said asymmetric loop defines an a least partially enclosed volume;
said first rigid linking segment hingedly connected to a distal region of said distal portion of said base for relative rotation about a single pivot axis relative to said distal portion of the base;
said second rigid linking segment hingedly connected to a proximal region of said proximal portion of said base;
and
said intermediate portion having a contact surface for contacting a second region of tissue, said contact surface of said intermediate portion spanning a majority of said second length, said intermediate portion being hingedly connected to said first linking segment and to said second linking segment such that said intermediate portion and said base at the initial length are formed with regions of overlap wherein said intermediate portion has an open receiving section configured to receive therein a portion of said base, shortening of said base from said initial length towards said second length causes an increase in a distance between said contact surface of said base and said intermediate portion and deflects said deflectable piece to said fully deflected state without deflecting said base to form, with said base, the asymmetric loop.

3 more elements

An expanding implant for insertion between two regions of tissue, the implant comprising:

a base having a contact surface for contacting a first region of tissue, said base comprising a proximal portion in sliding engagement with a distal portion, said base assuming an initial length and being shortened towards a second length when said proximal portion slides towards said distal portion;
a first rigid linking segment having a first end and an opposing second end, wherein said first end is hingedly connected to a distal region of said distal portion of said base;
a second rigid linking segment having a first end and an opposing second end, wherein said first end is hingedly connected to a proximal region of said proximal portion of said base;
and
an intermediate portion having a first end and an opposing second end, and said intermediate portion having a contact surface for contacting a second region of tissue, said contact surface of said intermediate portion spanning a majority of said second length, said first end of said intermediate portion being hingedly connected to said second end of said first linking segment and said second end of said intermediate portion being hingedly connected to said second end of said second linking segment such that said intermediate portion and said base at the initial length are formed with regions of overlap wherein said intermediate portion has an open receiving section configured to receive therein a portion of said base, shortening of said base from said initial length towards said second length causes an increase in a distance between said contact surfaces of said base and said intermediate portion and deflects said first rigid linking segment, said second rigid linking segment, and said intermediate portion to a fully deflected state without deflecting said base to form, with said base, an asymmetric loop defining an a least partially enclosed volume.

2 more elements

An expanding implant for insertion between two regions of tissue, the implant comprising:

a base having a contact surface for contacting a first region of tissue, said base comprising a proximal portion in sliding engagement with a distal portion, said base assuming an initial length and being shortened towards a second length when said proximal portion slides towards said distal portion;
a first rigid linking segment having a first end and an opposing second end, wherein said first end is hingedly connected directly to a distal region of said distal portion of said base;
a second rigid linking segment having a first end and an opposing second end, wherein said first end is hingedly connected directly to a proximal region of said proximal portion of said base;
and
an intermediate portion having a first end and an opposing second end, and said intermediate portion having a contact surface for contacting a second region of tissue, said contact surface of said intermediate portion spanning a majority of said second length, said first end of said intermediate portion being hingedly connected directly to said second end of said first linking segment and said second end of said intermediate portion being hingedly connected directly to said second end of said second linking segment such that said intermediate portion and said base at the initial length are formed with regions of overlap wherein said intermediate portion has an open receiving section configured to receive therein a portion of said base, shortening of said base from said initial length towards said second length causes an increase in a distance between said contact surfaces of said base and said intermediate portion and deflects said first rigid linking segment, said second rigid linking segment, and said intermediate portion to a fully deflected state without deflecting said base.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/847,086Filed 13 Apr 2020 · continuation
Priority: 14 Jul 2011
Published: US 2020/0237521 A130 Jul 2020
Granted: 9 Jul 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification55 codes

A61F 2/442
For the spine, e.g. vertebrae or spinal discs: intervertebral or spinal discs, e.g. resilient
A61B 17/3472
Trocars; Puncturing needles: for bones, e.g. intraosseus injections
A61B 17/8822
For introducing fluid filler into bone or extracting it: characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw…
A61F 2/4455
For the spine, e.g. vertebrae or spinal discs: for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion…

Family

PCT/IB2011/053143Parent of this continuation-in-part · filed 14 Jul 2011
Application61/652,345Us provisional application · filed 29 May 2012
Application61/707,963Us provisional application · filed 30 Sep 2012
Application13/654,463Parent of this continuation · filed 18 Oct 2012
Application14/225,466Parent of this continuation · filed 26 Mar 2014
US 8,777,993 B2Parent of this continuation · filed 15 Jul 2014
Application14/730,256Parent of this continuation · filed 4 Jun 2015
US 9,532,884 B2Parent of this continuation · filed 3 Jan 2017
Application15/422,492Parent of this continuation · filed 2 Feb 2017
US 2020/0237521 A1Pre-grant publication · published 30 Jul 2020
US 10,617,530 B2Parent of this continuation
Application13/654,463Parent of this continuation-in-part
US 2013/0041471 A1Published application
US 2015/0018955 A1Published application
US 2015/0265422 A1Published application
US 2017/0143504 A1Published application
US 12,029,655 B2This patent

From the US filing history. Foreign family members aren’t listed.