WO2014014336A1 - Dispositif d'ablation de trace de biopsie et procédé pour celui-ci - Google Patents

Dispositif d'ablation de trace de biopsie et procédé pour celui-ci Download PDF

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Publication number
WO2014014336A1
WO2014014336A1 PCT/MY2013/000072 MY2013000072W WO2014014336A1 WO 2014014336 A1 WO2014014336 A1 WO 2014014336A1 MY 2013000072 W MY2013000072 W MY 2013000072W WO 2014014336 A1 WO2014014336 A1 WO 2014014336A1
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Prior art keywords
biopsy
needle
track
distal end
end portion
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PCT/MY2013/000072
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English (en)
Inventor
Basri Johan Jeet ABDULLAH
Chai Hong YEONG
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Universiti Malaya (Um)
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Publication date
Application filed by Universiti Malaya (Um) filed Critical Universiti Malaya (Um)
Publication of WO2014014336A1 publication Critical patent/WO2014014336A1/fr

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    • 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
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A61B18/082—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation

Definitions

  • the present invention relates generally to a track ablation device, and more particularly to a biopsy track ablation device and method thereof.
  • Biopsy is the removal of a small piece of tissue from the body in order to determine the presence of disease.
  • a special biopsy needle may be used to penetrate the organ where the disease is suspected and to extract the tissue sample, which can then, for example, be examined under a microscope.
  • Current biopsy procedures may employ a special biopsy needle having an opening tray into which tissue will expend. Once the needle is in position within the tissue to be sampled, the physician releases a spring-loaded sheath, which slides over the tray cutting tissue sample free and trapping the tissue sample inside the tray. The biopsy needle is withdrawn from the patient.
  • Types of biopsy may include surgical biopsy and percutaneous biopsy.
  • the surgical biopsy also known as excisional biopsy, may involve removing entire mass of tumor for testing.
  • Surgical biopsy is often done by using the guidance of imaging or endoscopy. If cells cancer is present, a pathologist can usually tell the type of cancer, and whether the cells are likely grow fast or slowly.
  • the percutaneous biopsy is routinely done by using the guidance of medical imaging such as ultrasound, mammography or CT imaging. Usually, the primary physician, radiologist, surgeon or other physician will determine the most appreciated method of biopsy and guidance based on various factors including: i) tissue, organ or body part to be sampled,
  • a guide may be employed for the biopsy needle comprising a sharp rod (stylet) that is housed inside a hollow cylindrical tube (introducer needle).
  • stylet a sharp rod
  • introduction needle The introducer needled and stylet are inserted through the skin and into the organ of interest and then the stylet is removed from the introducer needle and replaced with the biopsy needle.
  • the biopsy needle is longer than the introducer needle to extend outward therefrom allowing multiple samples to be taken.
  • the biopsy is often performed to diagnose diseases and lesions of various organs including: bone biopsy, bone marrow biopsy, breast biopsy, joint biopsy, kidney biopsy, liver biopsy, lymph node biopsy, lung biopsy, pleural biopsy, prostate biopsy, small intestine biopsy, skin biopsy, synovial biopsy, thyroid and parathyroid biopsy.
  • the biopsy may also be performed to sample of following organs for cancer testing and other disease, such as adrenal gland, biliary tract, bladder, carpal tunnel, colon, endometrium, gingive (gums), heart, muscle, nerve, salivary gland, small bowel, mouth, nasal mucosa, rectum, testicle, throat and tongue.
  • the primary risk associated with organ biopsy, such as liver is bleeding after the removal of the needle from the patient.
  • the outside of the biopsy needle is coated with a thin layer of electrical insulation except for the last two centimeters.
  • a source of Radio Frequency (RF) electrical power is then connected the biopsy needle as it is withdrawn from the body to provide an electrocauterization of the needle track.
  • RF Radio Frequency
  • a significant drawback to this approach is the need to severely limit the power of the electrocauterizing source.
  • the investigators noted that at higher cauterizing power, there was visible thermal damage to portions of the biopsy specimen. A significant remains as to whether biopsy specimens using even lower power are not subtly altered by this process.
  • a secondary risk of biopsies of cancerous tissue is the risk of the biopsy needle seeding cancer cells into other tissues and bloodstream as the needle is withdrawn.
  • Bleeding presentations include subcapsular or parenchymal hematoma, hemobilia, or free intraperitoneal hemorrhage.
  • Intrahepatic or subcapsular hematomas are the most common of the bleeding complications and are noted on approximately 23% of ultrasound images obtained following biopsy. Such findings often are incidental, without associated clinical symptoms. They occur at similar rates after either blind or laparoscopy-guided modalities, but incidence may be influenced by needle type and imaging technique. Large hematomas are rare because of biliary obstruction. Symptomatic hematomas should be imaged by ultrasound but usually respond to conservative treatment with analgesics.
  • Intraperitoneal hemorrhage is the most serious of the bleeding complications. It is an early occurrence, most often observed during the first few hours following the procedure, although reports of this complication as long as 24 hours post-procedure have been noted. Late hemorrhage is associated with poor outcome. The overall rate of occurrence of peritoneal hemorrhage in a large study was 0.32%. Factors associated with increased risk of free bleeding include increased age, hepatic malignancy, multiple needle passes, and cirrhosis. Abdominal pain and persistent hemodynamic instability, presenting as tachycardia and hypotension, are typical of significant bleeding. Early diagnosis via ultrasonography is preferred. Transportation of tumor cells along the needle tract after biopsy of a malignancy is also a risk.
  • a biopsy track ablation device comprising: a) an introducer having an elongate body which terminates at a distal end portion, said distal end portion has a tapered edge, and opposite end of the introducer is an open end provided with an axially extending notch, the introducer further provided with a heating element for conducting heat at distal end portion; b) a biopsy needle having an elongated body which terminates at a tapered distal end portion, a tray is provided to sever the tissue, and opposite end of the biopsy needle is partially received by a handle; wherein the introducer is energized by the heat element as to the distal end portion of the introducer is instantaneously heated to a temperature sufficient to cauterize biopsy track. Accordingly, the axially extending notch of the introducer enables the elongated biopsy needle to be releasably engaged therewith.
  • the biopsy needle further provided with a spring mechanism in associated with a pair of finger grip elements
  • the biopsy needle is driven by the spring mechanism over the tissue within the tray to sever the tissue from remaining tissue and hold it within the tray.
  • the biopsy needle serves as a tissue collecting means and is adapted to be positioned interiorly and coaxially with the introducer.
  • the handle is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • the heating element serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the heating element is a DC powered heating to outer cannula of the introducer.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source.
  • a method of obtaining a biopsy specimen from an organ comprising: (i) penetrating and progressively advancing a distal end portion of an introducer of a biopsy track ablation device into a patient, with inserting from the exterior through the exterior tissue to the deeply located organ; (ii) continuing advancement of a tapered distal end portion of a biopsy needle until the tapered distal end portion is disposed in close proximal relation to the organ from which tissue is to be removed; (iii) cutting a tissue specimen and collecting the same in a tray of the biopsy needle, and removing the biopsy needle; (iv) energizing the introducer by a heat element as to the distal end portion of the introducer instantaneously heats to a temperature sufficient to cauterize biopsy track to prevent intraorgan bleeding; (v) removing the biopsy track ablation device by inserting back the biopsy needle through the introducer.
  • the heating element serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source.
  • a biopsy track ablation device comprising: a) an introducer having an elongate body which terminates at a distal end portion, said distal end portion has a tapered edge, and opposite end of the introducer is an open end provided with an axially extending notch; b) a biopsy needle having an elongated body which terminates at a tapered distal end portion, a tray is provided to sever the tissue, and opposite end of the biopsy needle is partially received by a handle; c) a track ablation needle having an elongated body which terminates at a tapered distal end portion, opposite end of the track ablation needle is provided with a handle, and said track ablation needle further provided with a heating element for conducting heat at distal end portion; wherein the track ablation needle is energized by the heat element as to the track ablation needle is instantaneously heated to a temperature sufficient to cauterize biopsy track.
  • the axially extending notch of the introducer enables the elongated biopsy needle to be releasably engaged therewith.
  • the biopsy needle further provided with a spring mechanism in associated with a pair of finger grip elements; Accordingly, the biopsy needle is driven by the spring mechanism over the tissue within the tray to sever the tissue from remaining tissue and hold it within the tray.
  • the biopsy needle serves as a tissue collecting means and is adapted to be positioned interiorly and coaxially with the introducer.
  • the handle is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • the heating element serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the heating element is a DC powered heating to outer cannula of the track ablation needle.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source.
  • the biopsy track ablation device optionally includes a guiding means for insertion into a patient prior to biopsy process.
  • a method of obtaining a biopsy specimen from an organ comprising: (i) penetrating and progressively advancing a distal end portion of an introducer of a biopsy track ablation device into a patient, with inserting from the exterior through the exterior tissue to the deeply located organ; (ii) continuing advancement of a tapered distal end portion of a biopsy needle until the tapered distal end portion is disposed in close proximal relation to the organ from which tissue is to be removed; (iii) cutting a tissue specimen and collecting the same in a tray of the biopsy needle, and removing the biopsy needle; (iv) introducing a track ablation needle through the introducer as to a tapered distal end portion thereof projected into biopsy track; (v) energizing the track ablation needle by a heat element as to the distal end portion of track ablation needle instantaneously heats to a temperature sufficient to cauter
  • the heating element is a DC powered heating to outer cannula of the track ablation needle.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • a suitable source of electrical current such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source. It will be appreciated that the method optionally comprises inserting a guiding means into the patient prior to biopsy process.
  • a biopsy track ablation device comprising: a) an introducer having an elongate body which terminates at a distal end portion, said distal end portion has a tapered edge, and opposite end of the introducer is an open end provided with an axially extending notch; b) a biopsy needle having an elongated body which terminates at a tapered distal end portion, a tray is provided to sever the tissue, and opposite end of the biopsy needle is partially received by a handle; c) a guiding means for insertion into a patient; wherein the guiding means is provided with a heating element for conducting heat at its distal end portion; and wherein the guiding means is energized by the heat element as to its distal end portion is instantaneously heated to a temperature sufficient to cauterize biopsy track. Accordingly, the axially extending notch enables the elongated biopsy needle to be releasably engaged therewith.
  • the biopsy needle further provided with a spring mechanism in associated with a pair of finger grip elements
  • the biopsy needle is driven by the spring mechanism over the tissue within the tray to sever the tissue from remaining tissue and hold it within the tray.
  • the biopsy needle serves as a tissue collecting means and is adapted to be positioned interiorly and coaxially with the introducer.
  • the. handle is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • the heating element serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the heating element is a DC powered heating to outer cannula of the track ablation needle.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source.
  • a method of obtaining a biopsy specimen from an organ comprising: (i) inserting a guiding means with a heating element into a patient, with inserting from the exterior through the exterior tissue to the deeply located organ, and removing a track ablation needle; (ii) penetrating and progressively advancing a distal end portion of an introducer of a biopsy track ablation device through the guiding means, and continuing advancement of a tapered distal end portion of a biopsy needle until the tapered distal end portion is disposed in close proximal relation to the organ from which tissue is to be removed; (iii) cutting a tissue specimen and collecting the same in a tray of the biopsy needle, and removing the biopsy track ablation device; (iv) energizing the guiding means by the heat element as to the distal end portion of guiding means instantaneously heats to a temperature sufficient to cauterize biopsy track to prevent intraorgan bleeding; (v) removing the guiding means by inserting back the track ablation needle through the guiding means.
  • the heating element serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the heating element is a DC powered heating to outer cannula of the guiding means.
  • the heating element is connected to a suitable source of electrical current, such as DC powered source.
  • the DC powered source is a disposal, portable or fixed power source.
  • FIGS. 1a and 1b are diagrammatic views of improved and/or modified biopsy track ablation device and method of cauterization and specimen withdrawal in accordance with one preferred embodiment of present invention
  • FIGS. 2a and 2b are diagrammatic views of improved and/or modified biopsy track ablation device and method of cauterization and specimen withdrawal in accordance with another preferred embodiment of present invention.
  • FIGS. 2c and 2d are diagrammatic views of the biopsy track ablation device and method thereof having a guiding needle either with or without a heating element in accordance with another preferred embodiment of present invention.
  • the present invention relates to an improved and/or modified biopsy track ablation device and method thereof.
  • this specification will describe the present invention according to the preferred embodiments of the present invention.
  • limiting the description to the preferred embodiments of the invention is merely to facilitate discussion of the present invention and it is envisioned that those skilled in the art may devise various modifications and equivalents without departing from the scope of the appended claims.
  • the present invention provides an improved and/or modified biopsy track ablation device and method thereof, which will be different by:
  • resistive heating system trochar (either a disposal or fixed power source) that can be inserted through the bore of the biopsy needle independent of type.
  • the length, cross-sectional length or diameter, and power source as well as resistive heating trochar can be varied depending on the application for use.
  • the improved and/or modified biopsy track ablation device (10) generally includes an introducer (12) having an elongate body (14) which terminates at a distal end portion (16).
  • the elongate body (14) is preferably provided with an outer insulating coating that produces a circumferentially continuous insulated section (18) extending along the elongate body (14) less than the fall length so as to expose the distal end portion (16).
  • a tapered edge (20) of the introducer (12) is defined by a heat conductive distal end portion (16).
  • the open end of the introducer (12) is provided with an axially extending notch (17) for a biopsy needle (22) to be releasably engaged therewith.
  • a heating element (30) may be provided on the introducer (12) to conduct heat at distal end portion (16).
  • the heating element (30) is embedded within the wall of elongate body (14) of the introducer (12) for ablation.
  • the biopsy track ablation device (10) further includes the biopsy needle (22) which serves as a tissue collecting means and which is adapted to be positioned interiorly and coaxially of the introducer (12).
  • the biopsy needle (22) includes an elongated body (24) which terminates in a tapered distal end portion (26). Opposite end of the biopsy needle (22) is partially received by a handle (28) that may be grasped during insertion or removal of the biopsy needle (22) into or out of the patient.
  • the handle (28) is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • An expose portion of the biopsy needle (22) coaxially engaged with the elongate body (14) is accept the heating element (30) that conduct heat through the elongate body (14) of the introducer (12).
  • the biopsy needle (22) may provide a spring mechanism (32) in associated with a pair of finger grip elements (34) provided in adjacent with the handle (28). When the biopsy needle (22) is in place, the biopsy needle (22) may be driven by the spring mechanism (32) over the tissue within a tray (36) to sever the tissue from remaining tissue and hold it within the tray (36).
  • the heating element (30) serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the desired or cut off temperature is of a range between 70°C to 100°C.
  • the heating element (30) may be a DC powered heating to outer cannula of the introducer (12).
  • the heating element (30) is connected to a suitable source of electrical current such as, for example but not limited to, a DC powered source which may be either a disposal, portable or fixed power source, so that when current is supplied to the heating element (30), it will be heated rapidly to a temperature sufficient to produce cauterization of the tissue defining the biopsy track.
  • the DC powered source may be of 220V input and 90W output. The power source may vary depending on the usage of application.
  • the biopsy needle (22) will be releasably engaged within the co-axial introducer (12).
  • the assembled biopsy track ablation device (10) will then be inserted from the exterior through the exterior tissue to the deeply located organ.
  • the biopsy needle (22) will be locked at the axially extending notch (17) of the introducer (12).
  • the interlocked biopsy needle (22) will then be advanced into the organ.
  • a tissue specimen will then be cut and be collected in the tray (36) of the biopsy needle (22). After the specimen has been collected within the tray (36), the biopsy needle (22) is unlocked and retracted from the introducer (12).
  • a biopsy track ablation device (50) includes an introducer (13) which is similar to that described above, but without the heating element. Accordingly, the introducer (13) includes an elongate body (14) which terminates at a distal end portion (16).
  • the elongate body (14) is preferably provided with an outer insulating coating that produces a circumferentia!!y continuous insulated section (18) extending along the elongate body (14) less than the fall length so as to expose the distal end portion (16).
  • Opposite ends of the introducer (13) are open and a tapered edge (20) of the introducer (13) is defined by a heat conductive distal end portion (16).
  • the open end of the introducer (13) is provided with an axially extending notch (17) for a biopsy needle (22) to be releasably engaged therewith.
  • the biopsy track ablation device (50) further includes biopsy needle (22) which serves as a tissue collecting means and which is adapted to be positioned interiorly and coaxially of the introducer (13).
  • the biopsy needle (22) includes an elongated body (24) which terminates in a tapered distal end portion (26). Opposite end of the biopsy needle (22) is partially received by a handle (28) that may be grasped during insertion or removal of the biopsy needle (22) into or out of the patient.
  • the handle (28) is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • the biopsy needle (22) may further provide with a spring mechanism (32) in associated with a pair of finger grip elements (34) provided in adjacent with the handle (28).
  • the biopsy needle (22) is co-axially engaged with the introducer (13) so that when the biopsy needle (22) is in place with the introducer (13), the biopsy needle (22) may be driven by the user or by the spring mechanism (32) over the tissue within the tray (36) to sever the tissue from remaining tissue and hold it within the tray (36).
  • a track ablation needle (60) is further provided for cauterization of needle track.
  • the track ablation needle (60) includes an elongated body (62) which terminates at a tapered distal end portion (64). Opposite end of the track ablation needle (60) is provided with a handle (69) which may be grasped during insertion or removal of the track ablation needle (60) into or out of the patient.
  • the handle (28) is of electrically and/or thermal insulating material such as moldable thermoplastic.
  • track ablation needle (60) is provided with a heating element (30) for cauterization.
  • the heating element (30) is provided at the tapered distal end portion (64) of the track ablation needle (60) for ablation. Accordingly, the heating element (30) serves to provide sufficient temperature to biopsy track that can be radically changed to prevent intraorgan bleeding after the removal of biopsy specimen.
  • the desired or cut off temperature is of a range between 70°C to 100°C.
  • the heating element (30) may be a DC powered heating to outer cannula of the track ablation needle (60).
  • the heating element (30) is connected to a suitable source of electrical current such as, for example but not limited to, a DC powered source which may be either a disposal, portable or fixed power source, so that when current is supplied to the heating element (30), it will be heated rapidly to a temperature sufficient to produce cauterization of the tissue defining the biopsy track.
  • a DC powered source may be of 220V input and 90W output.
  • the power source may vary depending on the application usage.
  • the biopsy needle (22) will first releasably engage within the co-axial introducer (13).
  • the assembled biopsy track ablation device (50) will then be inserted from the exterior through the exterior tissue to the deeply located organ.
  • the biopsy needle (22) will be locked at the axially extending notch (17) of the introducer (13).
  • the interlocked biopsy needle (22) will then be advanced into the organ. A tissue specimen will then be cut and be collected in the tray (36) of the biopsy needle (22).
  • the biopsy needle (22) is unlocked and retracted from the introducer (13). Thereafter, the track ablation needle (60) will be inserted through the introducer (13) so that tip thereof projected into biopsy track.
  • the track ablation needle (60) will be energized by heat element (30) so that the track ablation needle (60) instantaneously heats to a temperature sufficient to cauterize the biopsy track.
  • the introducer (13) and the track ablation needle (60) will then be retracted as a unit thus producing cauterization of the entire biopsy track and thereby preventing any further bleeding of the organ.
  • the biopsy track ablation device (50) may optionally provide with a guiding means (70).
  • the guiding means (70) may with or without a heating element (30) depending on the usage of the biopsy track ablation device (50).
  • the biopsy track ablation device (50) requires the use of the track ablation needle (60) with the heating element (30) for cauterization (FIG. 3c).
  • the track ablation needle (60) with heating element is no longer required and thus reduces or simplifies the process of biopsy (FIG. 3d). In use, i.e.
  • the guiding means (70) will first be inserted into a patient, with inserting from the exterior through the exterior tissue to the deeply located organ, following by removing a track ablation needle from the guiding means. As soon as the track ablation needle is removed, the biopsy needle (22) which is releasably engaged within the co-axial introducer (13) is inserted through the guiding means (70). The assembled biopsy track ablation device (50) will then be inserted from the exterior through the exterior tissue to the deeply located organ.
  • the biopsy needle (22) When the distal end portion (16) of the elongate body (14) of introducer (13) is disposed in close proximal relation to the organ from which the tissue specimen is to be taken, the biopsy needle (22) will be locked at the axially extending notch (17) of the introducer (13). The interlocked biopsy needle (22) will then be advanced into the organ. A tissue specimen will then be cut and be collected in the tray (36) of the biopsy needle (22). After the specimen has been collected within the tray (36), the biopsy track ablation device (50) is retracted from the guiding means (70).
  • the track ablation needle (60) with heating element (30) will be inserted through the guiding means (70) so that tip thereof projected into biopsy track.
  • the track ablation needle (60) will be energized by heat element (30) so that the track ablation needle (60) instantaneously heats to a temperature sufficient to cauterize the biopsy track.
  • the guiding means (70) and the track ablation needle (60) will then be retracted as a unit thus producing cauterization of the entire biopsy track and thereby preventing any further bleeding of the organ.
  • the guiding means (70) With the heating element (30), the guiding means (70) will first be inserted into a patient, with inserting from the exterior through the exterior tissue to the deeply located organ, following by removing a track ablation needle from the guiding means (70). As soon as the track ablation needle is removed, the biopsy needle (22) which is releasab!y engaged within the co-axial introducer (13) is inserted through the guiding means (70). The assembled biopsy track ablation device (50) will then be inserted from the exterior through the exterior tissue to the deeply located organ.
  • the biopsy needle (22) When the distal end portion (16) of the elongate body (14) of introducer (13) is disposed in close proximal relation to the organ from which the tissue specimen is to be taken, the biopsy needle (22) will be locked at the axially extending notch (17) of the introducer ( 3). The interlocked biopsy needle (22) will then be advanced into the organ. A tissue specimen will then be cut and be collected in the tray (36) of the biopsy needle (22). After the specimen has been collected within the tray (36), the biopsy track ablation device (50) is retracted from the guiding means (70).
  • the track ablation needle (60) without heating element (30) will be inserted through the guiding means (70).
  • the guiding means (70) with the heating element (30) will be energized by the heat element (30) so that the guiding means (70) heats to a temperature sufficient to cauterize the biopsy track.
  • the guiding means (70) and the track ablation needle (60) will then be retracted as a unit thus producing cauterization of the entire biopsy track and thereby preventing any further bleeding of the organ.
  • Neutral electrodes may be placed on the patient prior to the procedure and connected to the RF generator.
  • the RF attachment is preferably attached to the outer needle and RF generator is set to 30 watts and left on for 30 seconds for the needle to reach the required temperature.
  • the needle is then slowly withdrawn and the track is ablated. Only the part of the needle in contact with body will be contacting current and therefore be ablated.
  • the RF ablative trochar is inserted into the cored of the biopsy needle. The system is then turned on and once the desired temperature has been reach, a buzzer will sound every second as the needle is then slowly withdrawn and the track is ablated. Only the part of the needle in contact with body will be heated and therefore be ablated.
  • the thermal ablative system is inserted into the cored of the biopsy needle.
  • the system is then turned on and once the desired temperature has been reached, a buzzer will sound every second as the needle is then slowly withdrawn and the track is ablated. Only the part of the needle in contact with body will be heated and therefore be ablated.
  • the ablation of needle biopsy tracts may improve the safety of percutaneous needle biopsy of the liver and kidney, offering advantages over embolic or prothrombotic methods of haemostasis.
  • Resistive or RF ablation to arrest post-biopsy hemorrhage in patients with coagulopathy or in patients with especially vascular tumors may present less risk of vascular thrombosis or embolization compared with the injection of particulates such as collagen pledgets or thrombin/collagen preparations.
  • Thermal ablation may also reduce the risk of implantation of tumor cells as a result of the heating of the needle surface and needle track.
  • a similar design for cauterizing catheters may be useful to establish haemostasis on catheter removal from organs or vessels.

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Abstract

La présente invention concerne un dispositif d'ablation de trace de biopsie et un procédé pour celui-ci. Le dispositif d'ablation de trace de biopsie comprend généralement a) un élément d'introduction (13) ayant un corps allongé (14) qui se termine à une partie d'extrémité distale (16), ladite partie d'extrémité distale (16) ayant un bord effilé (20), et l'extrémité opposée de l'élément d'introduction (13) étant une extrémité ouverte avec une encoche s'étendant axialement (17) ; b) une aiguille de biopsie (22) ayant un corps allongé (24) qui se termine à une partie d'extrémité distale effilée (26), un plateau (36) étant disposé pour fixer le tissu, et l'extrémité opposée de l'aiguille de biopsie (22) étant partiellement reçue par un manche (28) ; c) une aiguille d'ablation de trace (60) ayant un corps allongé (62) qui se termine à une partie d'extrémité distale effilée (64), l'extrémité opposée de l'aiguille d'ablation de trace (60) étant pourvue d'un manche (69), et ladite aiguille d'ablation de trace (60) étant en outre pourvue d'un élément chauffant (30) pour conduire de la chaleur à travers le corps allongé (62) vers la partie d'extrémité distale effilée (64) ; l'aiguille d'ablation de trace (60) étant excitée par l'élément chauffant (30) de manière à ce que l'aiguille d'ablation de trace (60) soit instantanément chauffée à une température suffisante pour cautériser la trace de biopsie.
PCT/MY2013/000072 2012-07-16 2013-04-03 Dispositif d'ablation de trace de biopsie et procédé pour celui-ci WO2014014336A1 (fr)

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MYPI2012700469 2012-07-16
MYPI2012700469 MY150885A (en) 2012-07-16 2012-07-16 Biopsy track ablation device and method thereof

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WO2016148751A1 (fr) * 2015-03-18 2016-09-22 A.M. Surgical, Inc. Dispositif de chirurgie assistée par vidéo
WO2016118026A3 (fr) * 2015-01-22 2016-09-22 Sieczkowski Marcin Aiguille de biopsie de la prostate
CN107714102A (zh) * 2017-10-18 2018-02-23 四川桢祥科技有限公司 可止血活检工具
WO2018102534A1 (fr) * 2016-11-30 2018-06-07 Traceless Biopsy, Llc Système d'ablation des voies de biopsie destiné à la prévention et la cautérisation de l'ensemencement de tumeurs
CN112957122A (zh) * 2021-02-07 2021-06-15 达州市中心医院 一种射频消融装置
CN116138870A (zh) * 2023-02-28 2023-05-23 上海澍能医疗科技有限公司 活检及消融装置、活检及消融系统

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016118026A3 (fr) * 2015-01-22 2016-09-22 Sieczkowski Marcin Aiguille de biopsie de la prostate
US10660622B2 (en) 2015-01-22 2020-05-26 Debn Sp. Z O.O. Prostate biopsy needle
WO2016148751A1 (fr) * 2015-03-18 2016-09-22 A.M. Surgical, Inc. Dispositif de chirurgie assistée par vidéo
WO2018102534A1 (fr) * 2016-11-30 2018-06-07 Traceless Biopsy, Llc Système d'ablation des voies de biopsie destiné à la prévention et la cautérisation de l'ensemencement de tumeurs
US10959776B2 (en) 2016-11-30 2021-03-30 Traceless Biopsy, Llc Biopsy tract ablation system for tumor seeding prevention and cauterization
CN107714102A (zh) * 2017-10-18 2018-02-23 四川桢祥科技有限公司 可止血活检工具
CN112957122A (zh) * 2021-02-07 2021-06-15 达州市中心医院 一种射频消融装置
CN116138870A (zh) * 2023-02-28 2023-05-23 上海澍能医疗科技有限公司 活检及消融装置、活检及消融系统

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