US 2010/0249581 A1 · Surgical Navigation System Component Fault Interfaces and Related Processes

Abstract

Devices and processes for use in computer aided or computer navigated surgery include one or more fault interfaces interposed between an indicium and an item to be used during surgery such as a body part, tool, implant, trial or other structure or component. After the indicia have been registered into the system and surgery begun, it is sometimes the case that indicia can be inadvertently moved or dislodged in position and/or orientation relative to the body part. Fault interfaces according to various embodiments are designed to fail first, so that the indicia can be repositioned relative to the item without the need to reregister the indicia into the system relative to the item. The fault interfaces preferably include structure that allows the indicium to be repositioned relative to the item so that it does not need to be reregistered into the system. Frame attachments which can by easily manufactured at relatively low cost, are disposable, and which are manufactured for single use are disclosed.

Claims21

Dependent claims

1-40. (canceled)

A surgical navigation system comprising:

sensors adapted to sense position of a plurality of indicia attached by a reference frame to a patient's body part involved in surgery, the reference frame including a reference frame attachment member;
a computer adapted to receive information from the sensor about position of the indicia and generate information corresponding to position and location of the body part to which the indicia are attached;
a base plate configured to attach by way of one or more attachment devices to a bone portion of the body part involved in surgery, the base plate having a bottom portion including one or more openings for the one or more attachment devices, and further having a first mating portion configured to mate with a second mating portion of the reference frame attachment member;
wherein one of the first mating portion and second mating portion comprises a receiving slot and the other of the first mating portion and said second mating portion comprises a key portion configured to mate with the receiving slot in only a single predetermined orientation, and such that movement of the key portion within the slot is substantially limited to back and forth movement along a single sliding direction within the receiving slot;
wherein one of the first mating portion and second mating portion further comprises a connection aid protrusion configured to engage a retaining portion in the other of the first mating portion and second mating portion, the connection aid protrusion configured to secure the key portion in a single predetermined position in the receiving slot.

2 more elements

A method for performing a computer assisted surgical procedure comprising:

providing sensors adapted to sense position of a plurality of indicia attached by a reference frame to a patient's body part involved in surgery, the reference frame including a reference frame attachment member;
providing a computer adapted to receive information from the sensor about position of the indicia and generate information corresponding to position and location of the body part to which the indicia are attached;
providing a base plate configured to attach by way of one or more attachment devices to a bone portion of the body part involved in surgery, the base plate having a bottom portion including one or more openings for the one or more attachment devices, and further having a first mating portion configured to mate with a second mating portion of the reference frame attachment member, wherein one of the first mating portion and second mating portion comprises a receiving slot and the other of the first mating portion and second mating portion comprises a key portion configured to mate with the receiving slot in only a single predetermined orientation, and such that movement of the key portion within the slot is substantially limited to back and forth movement along a single sliding direction within the receiving slot, and wherein one of the first mating portion and second mating portion further comprising a connection aid protrusion configured to engage a retaining portion in the other of the first mating portion and second mating portion, the connection aid protrusion configured to secure the key portion in a single predetermined position in the receiving slot;
attaching the base plate to a bone portion of the body part involved in surgery;
sliding the key portion into the receiving slot to attach the plurality of indicia to the body part involved in surgery in a predetermined orientation and securing the key portion in a predetermined position by use of the connection aid protrusion;
and
performing the computer assisted surgical procedure based at least in part on information obtained from the position of the plurality of indicia.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/796,092Filed 8 Jun 2010

Priority

20 Oct 2003

Published

30 Sep 2010

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

A61B 90/36
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 34/20
Computer-aided surgery; Manipulators or robots specially adapted for use in surgery: surgical navigation systems; Devices for tracking or guiding…
A61B 90/39
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 2017/00477
Surgical instruments, devices or methods: coupling

Family

Application10/689,103Continuation in part · filed 20 Oct 2003

Application10/897,857Continuation · filed 23 Jul 2004

Application12/796,092Continuation

Application10/897,857Continuation in part

US 2005/0085822 A1Published application

US 2005/0119639 A1Published application

US 7,764,985 B2Related patent

US 2010/0249581 A1This patent

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

Surgical Navigation System Component Fault Interfaces and Related Processes

Life of this patent

Surgical Navigation System Component Fault Interfaces and Related Processes

Life of this patent

Abstract

Claims21