Surgical system
Inventors
Hoffa, Michael • Miller, Michael E. • Mark, Joseph L. • Flagle, Jacob • Smith, Justin • Butcher, Jason M.
Assignees
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Publication Number
US-8529468-B2
Publication Date
2013-09-10
Expiration Date
Abstract
A surgical device is disclosed that comprises a cutting element, a biopsy line, a motor line, and a vacuum line. The cutting element includes an outer cannula and an inner cannula. The biopsy line is operatively connected to a control console for moving the inner cannula within the outer cannula to cut tissue cores. The motor line is operatively connected to the control console for operating the surgical device. The vacuum line is operatively connected to the inner cannula. A selectively openable tissue filter is operatively connected to the inner cannula, and is also connected to the vacuum line.
Core Innovation
The invention relates to a surgical system for core needle biopsy that uses a control console and a surgical device with a cutting element comprising an outer cannula and an inner cannula. A biopsy line supplies pressurized air from the control console to move the inner cannula longitudinally relative to the outer cannula, and a motor line supplies pressurized air from the control console to rotate the inner cannula relative to the outer cannula, with the lines configured to be operatively connectable to the surgical device.
The system includes a firing line that supplies pressurized air from the control console to control longitudinal motion of the outer cannula relative to a body of the surgical device. The biopsy line and motor line each include a first section and a second section, where respective distal ends of the second sections are selectively connectable to respective proximal ends of the first sections, and the second sections are reusable after operation. The firing line includes first and second sections, with a selectively connectable distal end of the second section and a reusable second section after operation.
The document also describes reconfigurable fluid-path hardware and monitoring features that support switching operational behavior and detecting incorrect states. A remote toggle switch assembly includes three-way valves and a connector tube to reconfigure fluid pathways between the control console and the surgical device via the biopsy line and motor line. An error indicator system uses pressure sensors on the firing and motor lines to detect pressures and actuate an indicator based on error conditions, including threshold-based logic tied to operational modes such as lavage mode.
In addition, the document describes a tissue collection assembly implemented as a tissue filter assembly with a filter can and a porous filter trap for collecting tissue excised by a tissue cutting device. The assembly uses a cap defining a tissue inlet port and a vacuum access port configured to connect a flexible tubing vacuum line, and it uses a gasket disposed around an open end of the filter trap to create a vacuum-tight seal when the filter trap is seated and the cap is attached to the filter can. The filter can and cap are configured to not seal when the filter trap and gasket are omitted, such that omission creates a detectable vacuum leak that can be sensed to trigger an indicator.
Claims Coverage
The partial content contains two independent claims: an independent surgical system claim and an independent tissue filter assembly claim. Across these, the inventive features mainly cover (i) separate pressurized air line architecture with selectively connectable and reusable line sections, (ii) addition of a firing line for outer cannula longitudinal control, (iii) remote reconfigurable fluid-path switching and pressure-sensor-based error indication, and (iv) a removable vacuum-filter trap assembly using a vacuum-tight gasket seal that is detectable when omitted.
Selectively connectable reusable line sections for biopsy and motor control
The biopsy line and motor line each include a first section and a second section, where respective distal ends of the second sections are selectively connectable to respective proximal ends of the first sections, and the respective second sections are reusable after operation.
Firing line with selectively connectable reusable sections for outer cannula longitudinal motion
The surgical system further comprises a firing line configured to supply pressurized air to control longitudinal motion of the outer cannula, wherein the firing line includes first and second sections with a distal end of the second section selectively connectable to a proximal end of the first section, and wherein the second section of the firing line is reusable after operation.
Remote toggle switch assembly for reconfiguring fluid pathways
A remote toggle switch assembly includes first and second three-way valves and a connector tube to reconfigure fluid pathways between the control console and the surgical device via the biopsy line and motor line.
Pressure-sensor-based error indication with threshold logic
An error indicator system uses a firing line pressure sensor and a motor line pressure sensor so that an error signal actuates an indicator based on pressure conditions, including cases where both detected pressures meet or exceed a threshold.
Tissue filter assembly with removable porous filter trap and vacuum-tight gasket seal
A tissue filter assembly includes a cap with a tissue inlet port and a filter can having a vacuum access port, with a porous filter trap removably seated in a filter can chamber and a gasket disposed around an open end of the filter trap configured to be compressed between the cap and an outer periphery of the filter can to create a vacuum-tight seal when the filter trap is seated and the cap is attached.
Not sealing when filter trap and gasket are omitted
The filter can and the cap are configured to not seal when the filter trap and gasket are omitted from the filter can.
Overall, the claim coverage emphasizes a surgical system architecture that splits biopsy, motor, and firing functions across selectively connectable and reusable line sections connected between a surgical device and a control console, with added remote fluid-path reconfiguration and sensor-driven error indication. The tissue-filter assembly independently focuses on removable porous filtering with a vacuum-tight gasket seal and a configuration that results in non-sealing when the trap and gasket are omitted, enabling a detectable condition.
Stated Advantages
Enables reuse of the second sections of the biopsy line, motor line, and firing line after operation of the surgical device.
Provides error indication using pressure sensors and an indicator when the device is in an incorrect or partially activated condition.
Supports reconfigurable fluid pathways using a remote toggle switch assembly.
Creates a vacuum-tight seal for tissue aspiration and vacuum through a removable porous filter trap and gasket.
Provides a detectable vacuum leak condition when the filter trap and gasket are omitted, by configuring the cap and filter can to not seal in the omitted condition.
Documented Applications
Core needle biopsy surgical system configuration using a cutting element with an outer cannula and an inner cannula, with biopsy, motor, and firing functions supplied via a control console.
Tissue collection using a tissue filter assembly for collecting tissue excised by a tissue cutting device through a tissue aspiration line and vacuum line.
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