A method for extracting a tissue sample includes altering the pressure inside the lumen of a cannula to facilitate extraction of a tissue sample from the cannula. One aspect of the invention includes a biopsy apparatus comprising a valve for controlling the pressure inside the lumen of the cannula.
A method for extracting a tissue sample includes altering the pressure inside the lumen of a cannula to facilitate extraction of a tissue sample from the cannula. One aspect of the invention includes a biopsy apparatus comprising a valve for controlling the pressure inside the lumen of the cannula. In one variation, the pressure/vacuum generating device is connected to a cannula with a closed distal end and an orifice located on a circumferential surface of said cannula. A cutting sheath is slidably disposed over said cannula. The valve may be provided between the pressure/vacuum generating device and the cannula to control the pressure within the lumen of the cannula.
대표청구항▼
1. A biopsy apparatus comprising: a housing having a proximal end and a distal end;a cannula positioned in the housing to extend through the distal end of the housing, the cannula having a closed penetrating tip and an orifice located on a circumferential surface of said cannula, said orifice is con
1. A biopsy apparatus comprising: a housing having a proximal end and a distal end;a cannula positioned in the housing to extend through the distal end of the housing, the cannula having a closed penetrating tip and an orifice located on a circumferential surface of said cannula, said orifice is configured to receive a tissue sample into a lumen of said cannula;a cutting sheath positioned in the housing to extend through the distal end of the housing, the cutting sheath being slidably and coaxially disposed over said cannula, said sheath is adapted to seal the opening of said orifice;a pressure generating device positioned in the housing and connected to a proximal portion of said cannula for altering a pressure in the lumen of said cannula, the pressure generating device configured to selectively generate each of a positive pressure and a negative pressure;a valve positioned in the housing and positioned in fluid communication between said cannula and said pressure generating device, configured to control a fluid flow between the lumen of said cannula and said pressure generating device such that each of the positive pressure and the negative pressure selected is controlled by the valve;a valve actuator positioned in the housing and coupled to the valve to operate the valve; andan electronic system control coupled to the valve actuator andconfigured to control the valve actuator to close the valve to build up each of the selected positive pressure and negative pressure. 2. The biopsy apparatus according to claim 1, wherein a stopper is positioned in said lumen of said cannula in a location proximal to said orifice, said stopper is adapted to partially obstruct said lumen and prevent said sample of tissue from migrating to a proximal end of said cannula. 3. The biopsy apparatus according to claim 1, wherein said pressure generating device comprises a single acting cylinder with a piston slidably disposed within said cylinder for displacing a volume of said fluid, a port positioned at a first end of said cylinder is connected to said valve, and an orifice on said cylinder is configured to allow air inflow into the cylinder when said piston is displaced to a second end of said cylinder. 4. A biopsy device for taking tissue samples, comprising: a housing having a proximal end and a distal end, the housing containing an electric power source and a tension slide connected to the power source, wherein the tension slide is brought into a cocked position against the action of a spring by the power source;a removable element configured for coupling into the housing, comprising: a biopsy cannula unit, comprising a hollow biopsy cannula positioned in the housing to extend through the distal end of the housing, the hollow biopsy cannula having a sample removal chamber and a penetrating tip, and a cutting sheath positioned in the housing to extend through the distal end of the housing, the cutting sheath being slidably and coaxially disposed over said cannula;a pressure generating device positioned in the housing, the pressure generating device configured to selectively generate each of a positive pressure and a negative pressure;a valve positioned in the housing, the valve coupled in fluid communication between the pressure generating device and the biopsy cannula unit such that each of the positive pressure and the negative pressure selected is controlled by the valve; anda first connection element that extends between the biopsy cannula unit and the valve, and configured to provide fluid communication from the valve to the biopsy cannula unit;a valve actuator positioned in the housing and coupled to the valve to operate the valve; andan electronic system control coupled to the valve actuator andconfigured to control the valve actuator to close the valve to build up each of the selected positive pressure and negative pressure. 5. The biopsy device according to claim 4, wherein the biopsy cannula unit is arranged on the tension slide and further comprising a control panel, wherein said control panel is connected to a plurality of actuators, wherein a slide actuator controls both the tension slide and the cutting sheath. 6. The biopsy device according to claim 4, wherein the electronic system control controls the opening of the valve via the valve actuator. 7. The biopsy device according to claim 4, wherein the valve is connected in fluid communication with a distal end of the pressure generating device. 8. The biopsy device according to claim 4, wherein the valve is configured to receive a vacuum from the pressure generating unit and provide a controlled application of the vacuum to the biopsy cannula unit. 9. A biopsy device for taking tissue samples, comprising: a housing containing an electric power source and a tension slide connected to the power source, wherein the tension slide is brought into a cocked position against the action of a spring by the power source;a biopsy cannula unit, comprising a hollow biopsy cannula, having a sample removal chamber, and a cutting sheath, wherein the biopsy cannula unit is arranged on the tension slide;a pressure generating device positioned in the housing, the pressure generating device configured to selectively generate each of a positive pressure and a negative pressure, the pressure generating device comprises a syringe unit having a syringe body and a plunger positioned in the syringe body, the syringe body having a ventilation opening in an upper part thereof which may be opened to dissipate a created vacuum by retraction of the plunger;a spindle actuator configured to move the plunger in a forward and a reverse direction;a valve positioned in the housing and interposed between the cannula and the pressure generating device, and configured such that each of the positive pressure and the negative pressure selected is controlled by the valve;a valve actuator positioned in the housing and coupled to the valve to operate the valve; andan electronic system control coupled to the valve actuator andconfigured to control the valve actuator to close the valve to build up each of the selected positive pressure and negative pressure. 10. The biopsy device according to claim 9, further comprising at least one DC motor with secondary planet gearing contained within the housing, wherein the controllable spindle actuator is powered by the motor. 11. The biopsy device according to claim 10, wherein the transmission from the planet gearing to the spindle occurs via a single-stage gearing, and wherein a threaded spindle nut mounted on the syringe unit housing carries a toothed crown. 12. The biopsy device according to claim 11, wherein the motor with secondary planet gearing is controlled by measuring the speed of revolution such that the plunger in a first step is moved from a distal end of the housing to a first point adjacent but distal the ventilation opening, in a second step is moved first proximal the ventilation opening to open the ventilation opening and dissipate the created vacuum and then distal back to the first point to close the ventilation opening, and in a third step is moved in a distal direction to create excess pressure, the first, second and third steps being coordinated with the controlling of the sample removal and the ejecting of the sample. 13. The biopsy device according to claim 12, wherein the speed of revolution of the motor is measured by a photocell permanently arranged on a motor housing and a pickup arranged on a motor shaft, and wherein the speed of revolution of the motor is compared against a nominal value previously stored in electronic components of the biopsy device and used to trigger control of the spindle actuator.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (264)
Williamson, IV,Warren P.; Whitlach,Stephen; DiNovo,Dominic; Allen,Douglas; Ward,Thomas, Apparatus and method for harvesting and handling tissue samples for biopsy analysis.
Burbank Fred H. ; Fogarty Thomas J. ; Manska Wayne E. ; Ritchart Mark A. ; Ryan Timothy J. ; Zerhouni Elias A., Apparatus for automated biopsy and collection of soft tissue.
Burbank Fred H. ; Fogarty Thomas J. ; Manska Wayne E. ; Ritchart Mark A. ; Ryan Timothy J. ; Zerhouni Elias A., Apparatus for automated biopsy and collection of soft tissue.
Bird Richard R. ; DeFrietas Kenneth F. ; Janer Roman R. ; Kirshner Hal ; Pennatto Samson L., Apparatus for holding and driving a surgical cutting device using stereotactic mammography guidance.
de Groot William J. (#1 Cedar Lawn South Galveston TX 77550) de Groot Theodore J. (53 Lafayette St. Norwich CT 06360) de Groot Joseph B. (50 Morahapa Rd. Centerport ; L.I. NY 11721), Apparatus for performing a biopsy.
Hakky Said I. (8547 Merrimoor Boulevard East Largo FL 34647-3145) Hudson Perry B. (2225 Park St. North St. Petersburg FL 33710), Automatic biopsy device housing a plurality of stylets.
Hakky Said I. (8547 Merrimoor Blvd. E. Largo FL 34647-3145) Hudson Perry B. (2225 Park St. North St. Petersburg FL 33710), Automatic rotating cassette multiple biopsy device.
Huitema Thomas W. ; Gregoire David K. ; Kruszynski Michael L. ; Privitera Salvatore ; Voegele James W., Biopsy instrument with tissue penetrating spiral.
Frank Viola ; Csaba L. Rethy ; David Ivanko ; Scott Martinelli ; Bruce Jankowski ; Randolph Lehn ; James Dale ; Arthur Stickney ; Karl Ehrenfels, Biopsy system.
Burdorff, Mark A.; Hibner, John A.; Dlugos, Daniel F.; Gleason, Scott A.; Schmidt, Brian W., Calibration method for an automated surgical biopsy device.
Hibner John A. ; Quatrochi Chris K. ; Raczek Randy M. ; Burdorff Mark A. ; Nguyen Anthony T., Control apparatus for an automated surgical biopsy device.
Makower Joshua (Nanuet NY) Vidal Claude A. (Santa Barbara CA) LeMott Steven R. (East Lyme CT) Wells Rodney E. (East Lyme CT) Banks Thomas F. (Santa Barbara CA), Hemostatic implant introducer.
John B. Clayton ; Mark W. Hunter ; David Lightman ; Thomas J. Mickel, Medical instrument and method for use with computer-assisted image guided surgery.
Burbank Fred H. (San Juan Capistrano CA) Fogarty Thomas J. (Portola Valley CA) Manska Wayne E. (Anaheim CA) Ritchart Mark A. (Murrieta CA) Ryan Timothy J. (Los Gatos CA) Zerhouni Elias A. (Baltimore , Method and apparatus for automated biopsy and collection of soft tissue.
Burbank Fred H. ; Fogarty Thomas J. ; Manska Wayne E. ; Ritchart Mark A. ; Ryan Timothy J. ; Zerhouni Elias A., Method and apparatus for automated biopsy and collection of soft tissue.
Mark A. Burdorff ; John A. Hibner ; Dan F. Dlugos ; Jon D. Buzzard, Method for using a surgical biopsy system with remote control for selecting and operational mode.
Ritchart Mark A. (Murrieta CA) Stuart J. Michael (Lake Forest CA) Burbank Fred H. (San Juan Capistrano CA) Galt Kenneth M. (Seal Beach CA), Methods and devices for automated biopsy and collection of soft tissue.
Young Wayne P. (Brewster NY) Pereira Darryl S. (Monroe CT) Castro Salvatore (Seymour CT) Kolesa Michael S. (Norwalk CT) Mastri Dominick L. (Bridgeport CT) Viola Frank J. (Sandy Hook CT), Morcellator.
Walker Clarence L. (Webster Groves MO) Sunderland Richard A. (Creve Coeur MO) Davis Mark A. (O\Fallon MO), Peristaltic infusion device and charger unit.
Kortenbach, Juergen Andrew; Turturro, Vincent, Proximal actuation handle for a biopsy forceps instrument having irrigation and aspiration capabilities.
Wallace, Daniel T.; Younge, Robert G.; Zinn, Michael R.; Barbagli, Federico; Moore, David F.; Stahler, Gregory J.; Adams, Daniel T.; Moll, Frederic H.; Martin, Kenneth M.; Niemeyer, Gunter D., Robotic catheter system.
Greene Franklin R. (Flushing NY) Zimmet Arthur L. (Centerport NY) Waye Jerome D. (New York NY) Petix Edward A. (Syosset NY), Suction collection and drainage apparatus.
Privitera Salvatore ; Hibner John A. ; Buzzard Jon D. ; Piller Michael E. ; Iverson David S. ; Reiter Michael J., Surgical device for the collection of soft tissue.
Privitera, Salvatore; Hibner, John A.; Buzzard, Jon D.; Piller, Michael E.; Iverson, David S.; Reiter, Michael J., Surgical device for the collection of soft tissue.
Privitera, Salvatore; Hibner, John A.; Buzzard, Jon D.; Piller, Michael E.; Iverson, David S.; Reiter, Michael J., Surgical device for the collection of soft tissue.
Voegele, James W.; Stephens, Randy R.; Forester, Craig F.; Garrison, William A.; Boehm, Michael E.; Nalagatla, Anil, Transmission assembly for a surgical biopsy device.
Charles Steven T. (Germantown TN) Tyler ; deceased Hugh J. (late of Santa Ana CA by Barbara A. Tyler for the Hugh J. Tyler Family Trust) Domash David M. (Mission Viejo CA), Vitreous cutter.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.