WO2002054957A2 - Biopsy device and method of use - Google Patents
Biopsy device and method of use Download PDFInfo
- Publication number
- WO2002054957A2 WO2002054957A2 PCT/US2001/043360 US0143360W WO02054957A2 WO 2002054957 A2 WO2002054957 A2 WO 2002054957A2 US 0143360 W US0143360 W US 0143360W WO 02054957 A2 WO02054957 A2 WO 02054957A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- probe
- elongated
- distal
- electrode
- tissue
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
- A61B10/0275—Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32056—Surgical snare instruments
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1482—Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
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- A61B10/02—Instruments for taking cell samples or for biopsy
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- A61B2018/00202—Moving parts rotating
- A61B2018/00208—Moving parts rotating actively driven, e.g. by a motor
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- A61B2018/00291—Anchoring means for temporary attachment of a device to tissue using suction
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B18/14—Probes or electrodes therefor
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
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Definitions
- the suspicious tissue is
- a subcutaneous site such as inside a human breast.
- biopsy specimen indicate surgical removal or other treatment of the
- suspected tissue mass from which the specimen was removed can be performed, for example, by the apparatus and method
- Electrosurgical techniques have been used in a variety of
- Electrode is attached to the patient at a point remote from where the
- the tissue adjacent the primary or active electrode contacts the tissue.
- the tissue adjacent the primary or active electrode contacts the tissue.
- electrosurgical biopsy instrument is disclosed and claimed in United
- This invention is directed to a biopsy device that provides ready
- the biopsy device provides for a split tissue
- the biopsy device of the invention generally includes an elongated
- probe having a proximal end and a distal end and an inner lumen
- a distal probe section is provided which has
- the probe member and are configured for longitudinal translation along a
- the electrode or electrodes are disposed in a plane or
- the proximal end of the probe is configured to allow the inner
- electrical power may then be advanced distally to thereby separate the
- tissue specimen from the tissue bed to which the tissue is secured
- the probe and the tissue specimen secured thereto may
- the biopsy device has a
- the distal arcuate electrode lies in a plane that is
- the cordal dimension of the distal electrode is at least
- specimen is split or is separated into two half specimens.
- the electrode(s) may be secured to the distal end of the electrode
- the biopsy device may then withdrawn from the patient,
- distal probe section maybe removed for subsequent pathological
- the distal electrode is connected by means of an electrical
- a high frequency e.g.
- the proximal circular electrode or semicircular electrodes may have their own supporting structure or may be supported
- elongated electrical conductor connects the proximal circular electrode
- Electrode to a high frequency, e.g. RF, electrical power which may be
- Electrodes are secured to the distal end of the outer sheath, the
- conductor(s) which connects the proximal electrode(s) may extend
- proximal electrode or electrodes is usually greater than the high
- the proximal electrode(s) are operated at a different time in the
- the probe, the proximal electrode and the outer sheath are identical to each other.
- a disposable unit which may be hand operated
- Figure 1 is a perspective view of a removable biopsy device
- Figure 2 is a perspective view of the biopsy device shown in
- Figure 3 is a perspective view of the biopsy device shown in
- Figure 2 rotated 180° about its longitudinal axis.
- Figure 4 is an enlarged perspective view of the distal section of
- Figure 5 is an enlarged perspective view of the distal section of
- Figure 6 is a longitudinal cross-sectional view of the device shown
- Figure 7 is an enlarged longitudinal cross-sectional view of the
- Figure 8 is a transverse cross sectional view of the device shown
- Figure 9 is a transverse cross sectional view of the device shown
- Figure 10 is a transverse cross sectional view of the device
- Figure 1 1 is an enlarged longitudinal cross-sectional view of the distal section of the device shown in Figure 6 rotated 90° from the view
- Figure 12 is an enlarged longitudinal cross-sectional view of the
- Figure 13 is a transverse cross sectional view of the device
- Figure 14 is a transverse cross sectional view of the device
- FIG 15 schematically illustrates an operative system embodying
- Figure 16 is a transverse cross sectional view of the device
- Figure 17 is a transverse cross sectional view of the device
- Figure 18 is a perspective view of an alternative probe member for
- the biopsy device The biopsy device.
- Figure 19 is a transverse cross-sectional view of the biopsy device
- the device 10 embodying features of the invention.
- the device 10 generally
- the device 10 is a disposable device and is configured to be
- a handle 15 which provides electrical power and control to
- the probe member 1 1 has a proximal section 16 configured for
- a distal section 18 which includes a distal extremity 20 which is
- connection member 23 are secured within the housing 26 as best shown
- the outer sheath 14 is slidably disposed about the proximal
- the collar 27 is provided with
- an arm 28 which is configured to seat within a receiving opening on a
- tubular sheath as shown by the arrow 30 in Figure 6 between an
- the housing 26 is provided with distal projection 31 and proximal
- a second long recess 35 is provided in
- connection member 23 has an inner lumen 36 in fluid
- the first electrode 12 which is circular and disposed about the
- probe member 1 1 is connected to electrical conductors and support
- This construction allows the first electrode to travel longitudinally with
- tissue site and at the same time cover the separated tissue specimen
- proximal end(s) of the electrical conductors 37 and 38 are secured to
- the second electrode 13 has an arcuate portion which is spaced
- width of the second electrode 13 is preferably about 20 to about 50%
- the second electrode 13 can be spaced distally
- the shaft of the device 10 which extends out from the housing
- 26 may have a length of about 3 to about 15 cm, preferably, about 5 to
- distal extremity 20 of the probe and the outer sheath 14 may be
- ultrasound imaging devices such as ECHOCOATTM by STS Biopolymers
- tissue may be provided with a suitable lubricious coating such as a
- hydrophilic material or a flouropolymer.
- the proximal portion of the probe 1 1 generally has an outer
- the first and second electrodes 12 and 13 can be generally rectangular
- conductive wire formed of metallic materials such as stainless steel.
- formed may be conventional medical grade polymer materials such as
- the biopsy device 10 may be use to obtain a tissue specimen
- operating system 50 generally includes a high frequency (e.g. RF)
- Vacuum is generated by the vacuum pump 57 which is connected in a
- conduit 58 which leads to a vacuum trap 59. Vacuum is applied to the
- connection member 23 connected to the vacuum trap.
- actuation and control cable 60 is provided to power and control the
- a tissue specimen is obtained with the device 10 by pressing the
- energized second electrode 13 forms a planar cut through the desired
- the device is preferably advanced through the patient's tissue to the specimen site with the outer sheath 14 in a closed configuration.
- the outer sheath 14 can be
- a vacuum can be generated within the inner
- distal extremity 20 draws tissue at the site against the surface of the
- the first electrode 12 may then be energized by high
- the biopsy device may then be removed from the patient.
- specimen 61 is a split specimen which greatly aids in its evaluation. It
- outer sheath 14 which can be left in the patient with its distal end at the
- extremity 71 of the probe device 70 is of tubular construction as shown.
- distal extremity 71 has a plurality of ports 73 which are in fluid
- Cutting electrode 72 is secured
- An electrical conductor 76 (shown in
- Figure 19 extends through inner lumen 75 and is electrically connected
- An outer sheath 77 extends about the probe member
- the probe 70 is used in the same manner described above with an
- the outer sheath may be configured to allow
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002555697A JP2004523273A (en) | 2000-11-16 | 2001-11-16 | Biopsy device and method of use |
CA002446883A CA2446883A1 (en) | 2000-11-16 | 2001-11-16 | Biopsy device and method of use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/717,176 | 2000-11-16 | ||
US09/717,176 US6497706B1 (en) | 1998-03-03 | 2000-11-16 | Biopsy device and method of use |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002054957A2 true WO2002054957A2 (en) | 2002-07-18 |
WO2002054957A3 WO2002054957A3 (en) | 2002-08-29 |
Family
ID=24881000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/043360 WO2002054957A2 (en) | 2000-11-16 | 2001-11-16 | Biopsy device and method of use |
Country Status (4)
Country | Link |
---|---|
US (1) | US6497706B1 (en) |
JP (1) | JP2004523273A (en) |
CA (1) | CA2446883A1 (en) |
WO (1) | WO2002054957A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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Also Published As
Publication number | Publication date |
---|---|
CA2446883A1 (en) | 2002-07-18 |
JP2004523273A (en) | 2004-08-05 |
WO2002054957A3 (en) | 2002-08-29 |
US6497706B1 (en) | 2002-12-24 |
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