Bone fragment and tissue processing system

Abstract

A tissue collection and processing system for collecting bone fragments and tissue aspirated from a bone. The tissue collection and processing system includes a collection vessel, a collection vessel cap, a processing cover, a first tubing and a fluid withdrawal mechanism. The collection vessel has an opening formed therein to receive bone fragments and tissue aspirated from the bone. The collection vessel cap is capable of engaging the collection vessel to substantially seal the opening. The collection vessel cap or the collection vessel has a first port. The processing cover has an upper surface and a lower surface. The processing cover has a connection port and a bore. The connection port is proximate the upper surface. The bore is fluidly connected to the connection port and extends toward the lower surface. The processing cover has a density that is less than a density of fluid in the aspirated bone fragments and tissue. The fluid withdrawal mechanism is fluidly connected to the connection port with the first tubing to withdraw the fluid from the collection vessel. As fluid is withdrawn from the collection vessel, the processing cover is slidable in the collection vessel.

Description

REFERENCE TO RELATED APPLICATION[0001]This application is a continuation-in-part of U.S. application Ser. No. 15 / 150,089, filed May 9, 2016, which claims priority to Provisional Applic. No. 62 / 193,451, filed on Jul. 16, 2015 and Provisional Applic. No. 62 / 158,574, filed on May 8, 2015, the contents of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The invention relates generally to collection and processing of bone fragments and tissue that may be used in preparing bone void fillers. More particularly, the invention relates to bone fragment and tissue processing system.BACKGROUND OF THE INVENTION[0003]In the US, bone grafts are most commonly used in spinal fusion surgery and, more generally, in the fusion or arthrodesis of any skeletal joint. In addition, bone graft is generally used in trauma surgery for the treatment of fresh fractures and non-unions, which are typically identified as fractures within 6 months that have not healed properly. The bone graft m...

AI Technical Summary

Benefits of technology

The patent text discusses the use of bone marrow aspirate concentrate to avoid the risks associated with autograft procurement. Bone marrow aspirate concentrate has similar properties to autograft and can be used to help surgeons and patients avoid autograft procurement. The technical effect is the reduction of risks and complications associated with autograft procurement.

Problems solved by technology

Joint revision is much more likely to need a bone graft because a large void may result from the removal of the original implant.

Autograft is often not used, because obtaining the graft generally requires a second surgical procedure with associated risks and expenses.

The autograft also typically results in significant post-operative issues, most significantly pain.

One of the disadvantages of using bone cement is that, once it is injected inside the patient, the bone cement is an inorganic material and, as such, is treated as a foreign body.

As such, the bone cement may not only negatively impact healing but can also lead to bone disease.

Additionally, the bone cement is typically stiffer than bone, which may increase the incidence of adjacent level fractures in the spine.

Bone cement leakage may cause complications, and has been reported to occur in vertebroplasty and kyphoplasty procedures.

If leakage does occur, the bone cement can cause soft tissue injury due to the high temperatures of the exothermic polymerization reaction.

In addition, if the bone cement is forced into the vascular system, it can cause emboli.

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