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A method and apparatus for an implantable inertial-based sensing system for real-time, in vivo detection of spinal pseudarthrosis and adjacent segment motion

A spine and external system technology, applied in the field of implantable biosensor systems, can solve problems such as inaccurate data of strain sensors

Inactive Publication Date: 2013-06-05
PHARMACO KINESIS +7
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can cause inaccurate data from the strain sensor, for example if a pedicle screw breaks

Method used

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  • A method and apparatus for an implantable inertial-based sensing system for real-time, in vivo detection of spinal pseudarthrosis and adjacent segment motion
  • A method and apparatus for an implantable inertial-based sensing system for real-time, in vivo detection of spinal pseudarthrosis and adjacent segment motion
  • A method and apparatus for an implantable inertial-based sensing system for real-time, in vivo detection of spinal pseudarthrosis and adjacent segment motion

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Experimental program
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Embodiment Construction

[0093] figure 1 is a side cross-sectional view of the fusion sensing system 1 in relation to the patient's spine 10 . In this embodiment, the fused sensing system 1 includes an implanted electronics assembly (generally indicated by reference numeral 200) coupled to a spinal stabilization hardware assembly (generally indicated by reference numeral 100) using an interbody cage 120 for Interbody fusion of the L4 and L5 discs of the lumbar spine; and, the external wearable system 400 . The fused sensing system 1 is coupled to a plurality of motion sensors 300 mounted into the spine 10, as best shown in Fig. 2b. The fusion sensing system 1 is powered via an induction coil by a reader 401 coupled with a wearable system 400 worn externally by the patient. Reader 401 also includes, for via Figure 11 and Figure 12The inductive coupling or inductive link between the inductive coils 441 , 541 in the communication to the device implanted in the electronic assembly 200 .

[0094] FI...

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Abstract

A vertebral processor designed to collect and interpret data from multiple surgically implanted accelerometers. Each accelerometer is surgically implanted into a vertebra of a patient utilizing a bone screw. Additional accelerometers are implanted in adjacent vertebrae. The data from the accelerometers is compared by an algorithm to determine the relative movement of the accelerometers implanted in adjacent vertebrae. Data is generated via the algorithm and compared against the expected behavior of the surgically implanted accelerometers as if they were connected to a rigid body, thus determining the level of success of a spinal fusion procedure for those adjacent segments. The apparatus may be utilized with or without spinal stabilization hardware, and with or without fusion cages or artificial discs. The vertebral processor is supplemented by an external system worn by the patient, which provides for an inductive charging power source and for data transfer.

Description

technical field [0001] The present invention relates to the field of implantable biosensor systems, in particular remotely powered and controlled accelerometer devices surgically implanted in adjacent vertebrae for determining the success of a spinal fusion procedure. Background technique [0002] Back pain is the most common medical condition in the United States today, second only to the common cold as the most common reason for doctor visits. Back pain not only has a profound impact on the patient, but also has an extremely high social cost. Back pain is the second most common cause of lost productive time due to pain disorders, resulting in the greatest amount of total lost time. It has been stated that of all medical conditions, back pain causes the greatest loss of productivity. The direct and indirect costs associated with the disease have been estimated to be approximately $50 billion per year in the United States alone. Although back pain is multifactorial, degen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/103A61B17/70A61B17/56A61B19/00A61F2/44
CPCA61F2/4455A61B17/7074A61B2562/043A61B5/1114A61F2/442A61B2560/0219A61F2/4657A61B2505/05A61B5/413A61B5/6878A61B5/45
Inventor 叶赫沙·沙查尔托马斯·陈温斯顿·吴布雷特·乔丹海尔文·陈帕拉丁·卢波夫凯尔·齐默曼
Owner PHARMACO KINESIS
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