Image-guided minimal-step placement of screw into bone
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-017/88
A61B-017/16
A61B-019/00
A61B-017/00
출원번호
US-0687162
(2012-11-28)
등록번호
US-9216048
(2015-12-22)
발명자
/ 주소
Markey, Sean
Geiger, Chris
출원인 / 주소
Integrated Spinal Concepts, Inc.
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
1인용 특허 :
184
초록▼
The present disclosure describes a device and methods for safely and accurately placing screws into bones with a powered driving device. By employing multiple layers of fail-safe features and image-guidance systems, the powered driving device provides safe, accurate, and efficient screw placement. T
The present disclosure describes a device and methods for safely and accurately placing screws into bones with a powered driving device. By employing multiple layers of fail-safe features and image-guidance systems, the powered driving device provides safe, accurate, and efficient screw placement. That is, the powered driving device may continuously monitor a screw advancement and placement and may automatically shutdown when improper placement is detected. Monitoring placement may be conducted by a microcurrent-monitoring system, by an image-guidance system, or by any other appropriate sensory system. Additionally, upon detecting that screw insertion is complete, the powered driving device may be automatically shutdown. As screw placement is continuously simulated by image-guidance in real time, multiple redundant verification steps are eliminated, providing highly accurate screw placement while decreasing clinician error, device contamination, and surgical time, the decreased surgical time associated with decreased patient-recovery time and associated medical costs.
대표청구항▼
1. A method for automatically shutting down a powered driving device while inserting a screw into bone, the method comprising: monitoring, by a monitoring component, advancement of the screw in real time during powered delivery of the screw into the bone with the powered driving device, wherein the
1. A method for automatically shutting down a powered driving device while inserting a screw into bone, the method comprising: monitoring, by a monitoring component, advancement of the screw in real time during powered delivery of the screw into the bone with the powered driving device, wherein the screw comprises a crown portion at an end of the screw opposite a tip portion, and wherein monitoring advancement of the screw in real time comprises: measuring, by a micro-current monitoring system, an electrical current delivered to the screw when the screw is at least partially inserted into the bone;and detecting, by a neuro-monitoring apparatus, the position of the screw by determining a resistance of the bone surrounding the screw based at least in part on the measured electrical current; andin response to detecting the position of the screw, automatically shutting down, by a safety trigger component, the powered driving device before the crown portion of the screw counter-sinks into the bone when the screw has a proper trajectory and a proper position, and when one of: a portion of the screw reaches an end of a drive chamber located within the powered driving device, or a portion of a drive shaft reaches an end of the drive chamber. 2. The method of claim 1, wherein monitoring advancement of the screw further comprises: detecting when the electrical current registers below a predetermined threshold, wherein when the electrical current registers below the predetermined threshold the screw is in an improper position. 3. The method of claim 1, wherein monitoring advancement of the screw further comprises: registering the powered driving device within an image-guidance system;receiving an indication from the image-guidance system regarding a virtual position of the screw based on a location of the registered powered driving device; anddetecting when the virtual position of the screw is improper. 4. The method of claim 1, wherein the screw is a self-drilling, self-tapping screw. 5. The method of claim 4, wherein the self-drilling, self-tapping screw further comprises: a self-drilling tip, wherein the self-drilling tip is configured to form an impression in an outer cortical region of the bone in the absence of a pre-drilled guide hole;a flute, wherein the flute is configured to facilitate advancement of the screw into the bone without fracturing the bone in the absence of pre-tapping; andthe crown portion at the end of the screw opposite the self-drilling tip. 6. The method of claim 2, wherein monitoring advancement of the screw further comprises: automatically shutting down the powered driving device upon detecting that the screw is in an improper position. 7. The method of claim 1, further comprising: identifying a target position for delivering the screw into the bone, wherein the target position is associated with a target insertion location at a target trajectory; andreceiving an indication from the powered driving device when the powered driving device is positioned over the target insertion location and is oriented according to the target trajectory. 8. The method of claim 7, further comprising: receiving an indication of an appropriate size for the screw based on the target position; andreceiving the appropriately sized screw into a drive chamber of the powered driving device. 9. The method of claim 7, further comprising: generating an alert when the screw has an improper trajectory. 10. The method of claim 7, wherein receiving an indication that the powered driving device is positioned over the target insertion location and is oriented according to the target trajectory further comprises receiving at least one of a visual indication and an audio indication from the powered driving device. 11. A method for automatically shutting down a powered driving device while inserting a screw into bone, the method comprising: monitoring, by a monitoring component, advancement of the screw in real time during powered delivery of the screw into the bone with the powered driving device, wherein the screw comprises a crown portion at an end of the screw opposite a tip portion, and wherein monitoring advancement of the screw in real time comprises: measuring, by a micro-current monitoring system, an electrical current delivered to the screw when the screw is at least partially inserted into the bone;detecting, by a neuro-monitoring apparatus, the position of the screw by determining a resistance of the bone surrounding the screw based at least in part on the measured electrical current;registering, by the neuro-monitoring apparatus, the powered driving device within an image-guidance system;receiving an indication from the image-guidance system regarding a virtual position of the screw based on a location of the registered powered driving device; anddetecting, by the neuro-monitoring apparatus, when the virtual position of the screw is improper; andin response to detecting the position of the screw, automatically shutting down, by a safety trigger component, the powered driving device before the crown portion of the screw counter-sinks into the bone when the screw has a proper trajectory and a proper position, and when one of: a portion of the screw reaches an end of a drive chamber located within the powered driving device, or a portion of a drive shaft reaches an end of the drive chamber. 12. The method of claim 11, wherein monitoring advancement of the screw further comprises: detecting when the electrical current registers below a predetermined threshold, wherein when the electrical current registers below the predetermined threshold the screw is in an improper position. 13. The method of claim 12, wherein monitoring advancement of the screw further comprises: automatically shutting down the powered driving device upon detecting that the screw is in an improper position. 14. The method of claim 11, wherein the screw is a self-drilling, self-tapping screw. 15. The method of claim 14, wherein the self-drilling, self-tapping screw further comprises: a self-drilling tip, wherein the self-drilling tip is configured to form an impression in an outer cortical region of the bone in the absence of a pre-drilled guide hole;a flute, wherein the flute is configured to facilitate advancement of the screw into the bone without fracturing the bone in the absence of pre-tapping; andthe crown portion at the end of the screw opposite the self-drilling tip. 16. The method of claim 11, further comprising: identifying a target position for delivering the screw into the bone, wherein the target position is associated with a target insertion location at a target trajectory; andreceiving an indication from the powered driving device when the powered driving device is positioned over the target insertion location and is oriented according to the target trajectory. 17. The method of claim 16, further comprising: receiving an indication of an appropriate size for the screw based on the target position; andreceiving the appropriately sized screw into a drive chamber of the powered driving device. 18. The method of claim 16, further comprising: generating an alert when the screw has an improper trajectory. 19. The method of claim 16, wherein receiving an indication that the powered driving device is positioned over the target insertion location and is oriented according to the target trajectory further comprises receiving at least one of a visual indication and an audio indication from the powered driving device. 20. The method of claim 11, wherein detecting the position of the screw further comprises: initiating automatic shutdown by the powered driving device when the bone density indicates that the screw is in contact with cortical bone.
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