SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal by Additive Implants Inc.

SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal by Additive Implants Inc. is a highly esteemed winner of the very prestigious 2020 Duais Cré-umha A' Design Award in Dearadh Táirge Leighis Competition Category.

Cré-umhaTáirge Leighis· 2020

SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal

by Additive Implants Inc.

Client: Additive Implants Inc

Duais Cré-umha A' Design Award Winner in Táirge Leighis Category

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The Design

About SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal

Téacs Leabhair: Is ionchlannán cervical spinal tíotáiniam é SureMAX a úsáidtear i máinliacht discectomaí agus comhtháthaithe cervical roimhe. Tá righneas SureMAX ag teacht le righneas chnámh an othair, sa chaoi is nach ndéantar dochar don veirteabra agus nach socraíonn an t-ionchlannán isteach. Fásann cnámh go maith isteach i dtíotáiniam, ach bhí cásanna tíotáiniam níos luaithe róchrua. Táirgtear SureMAX trí phriontáil tríthoiseach ó phúdar tíotáiniam, rud a cheadaíonn geoiméadrachtaí nach féidir a mheaisínú. Tá an dromchla póiriúil agus garbhaithe chun fás cnámh a chothú. Ligeann fuinneoga taobhach do chneasú a fheiceáil ar íomhánna X-gha.

The Recognition

About the Duais Cré-umha A' Design Award

Bhuaigh an dearadh SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal Duais Cré-umha A' Design Award, aitheantas an-ghradamach a bhronntar ar dhearaí sármhaithe a mbíonn cruthaitheacht, aireagacht agus géarchúis mar shaintréithe acu. Is déantúsáin ghlic agus chruthaitheacha go suntasach iad buaiteoirí Cré-umha a dhearbhaíonn taithí fhairsing, samhlaíocht agus acmhainneacht a ndearthóirí. Táthar ag súil go mbeidh an dearadh SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal ina rud a bhfuil an-mheas air, a n-ardaítear agus a ghráitear, atá thar a bheith gairmiúil agus nuálach. Ionchorpraíonn an dearadh seo a bhuaigh Duais Cré-umha A' Design Award na cleachtais is fearr san ealaín, san eolaíocht, sa dearadh agus sa teicneolaíocht, agus tá sé sármhaith as a aird ar mhionsonraí. Sásaíonn an dearadh SureMAX Feidhm Bhunúsach: Ionchlannán Cervical Spinal riachtanais go hálainn, bainíonn sé le mianta, cuireann sé draíocht ar mhothúcháin agus tarraingíonn sé fiosracht.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: SureMAX is the first Titanium spinal implant that has a stiffness that matches the individual's bone stiffness as not to damage it. Bone loves to grow into Titanium but Titanium cages have been limited because they are too stiff and damage the bone. SureMAX has solved this problem through using 3D print technology with geometries that are not machinable. It also has a porous roughen surface to encourage bone to grow into it.
Dimensions & Packaging: There are 72 sizes for SureMAX. The height, the foot print and the angle of the implant are the 3 choices. The angles are 0, 7 and 14 degrees. The choice of the angle is used to correct any stenosis in the spine (this is when the spine has a deformity and the implant is used to fix it). The heights are 5,6,7,8,9,10,11 and 12 mm. The foot prints are 12x14 mm, 14x16 mm and 15x118mm. All units come in a sterile plastic package.
Tags: spinal implant, Inter body fusion device, IBFD, cage, Titanium, Ti Cage, 3D printed, Spine
Production Technology: 3D print technology has been used with Titanium powder (Ti6Al4) using porous surface technology to achieve designs that will encourage bone to grow into the spinal implant
Design Challenge: To get result required- a high performance implants which is cost competitive, the team had to design a part that could both hand the stresses and forces required by the US government FDA while solving the patient challenges. The part had to be designed so minimal post processing would be required after 3D printing. Additionally, the rough porous surface which helps the healing process required advance software and new methodologies to manufacture. The diving boards had to share the spinal loads equally in order not to displace the implant in the spine. Side windows had to be designed that permits the loads to be distributed and have large have enough surface to see the bone healing. The hardest part of the design activity was to figure out how 8 independent platforms on both sides of the implant could function as a single unit and share the loads appropriately. The surface had to be porous and roughened Ti that could handle the appropriate loads. The teeth had to be the correct size and angle in order to assure stability, but not too big or small to them a ineffective.
Research: Titanium (Ti) has always been the material of choice for implants. But Ti is hard to machine and is very stiff. In the interface between Ti and bone, bone can be damaged and the implant subside ( or settle ) in the body. Plastic and Allograft bone material implants are used to address Ti's limitations. Additional, Ti is not X-ray translucent, so physicians can not see how the bone heals through and around the implant. Plastic implants also have the limitation that they remain inert in the body- they are never adsorbed. Bone however grows very well into Ti. The challenge was to create a Ti spinal cervical implant (cervical is for the neck) that had the same stiffness as bone as not to damage it, would not subside (it would stay on top of the bone and not settle), would remain in the position inserted (with the neck movement would not slip), X-ray could go through it (healing could be observed), would pass the stress test required by the FDA and would be cost effective.
Inspiration: The inspiration was the lack of a solution that took advantage of new geometries that can be created with Titanium which is the best material for bone to grow into by a spine surgeon who performs over 300 cervical surgeries a year. He wanted an implant made from Titanium that matched bone's hardness, not to damage the vertebra, was visible in X-rays, so healing could be seen through, and would not subside in the spine.
Project Duration: The design started in 2015 and ended in October 2018 and FDA approval was received in February 2019 (3 year design and 4 month approval). The work was done in Phoenix Arizona USA.
Operation Flow: The implant is used in an Anterior Cervical Discectomy Fusion (ACDF) surgery where the front of the neck is opened, the damaged cartilage removed and an implant is inserted in order to fuse the vertebra. The implant comes in a sterile plastic package. The surgeon once the damage is observed and removed assesses the size required. The appropriate implant size, angle and foot print is selected and inserted into the spine. A plate is then used (not part of SureMAX) to attach the upper and lower vertebra. The bone then grows into the implant (called inter body fusion device IBFD) and the patient heals.
Patents: Patented #10,299,938 Additive Implants Inc., May 2019, USA
5 additional patent pending and provisional patents
FDA #K182477 (2019), holder Additive Implants Inc. USA
Trademark #88115736 (2018), Additive Implants Inc. USA
Team Members: Dr. John Ehteshami MD
Robert Brosnehan
Matt Zoghi
JD Howell
Jeff Horn
Babak Ehteshami