CN112006727A - Electrocoagulation biopsy knife - Google Patents
Electrocoagulation biopsy knife Download PDFInfo
- Publication number
- CN112006727A CN112006727A CN202010894251.4A CN202010894251A CN112006727A CN 112006727 A CN112006727 A CN 112006727A CN 202010894251 A CN202010894251 A CN 202010894251A CN 112006727 A CN112006727 A CN 112006727A
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- Prior art keywords
- electrocoagulation
- outer sleeve
- biopsy
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- power supply
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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
-
- 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
-
- 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
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
-
- 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
- A61B18/12—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
-
- 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
- A61B18/12—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
-
- 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
- A61B2018/00589—Coagulation
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Otolaryngology (AREA)
- Plasma & Fusion (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgical Instruments (AREA)
Abstract
The invention designs an electrocoagulation biopsy knife, which comprises: the outer sleeve comprises a cavity for accommodating the inner sleeve, an axial slot for biopsy sampling and a distal puncture tip; the inner sleeve comprises a rotary cutting end part for rotary cutting tissues and an inner cavity for accommodating cut tissues, and the inner sleeve can rotate and axially move in the outer sleeve; a vacuum system attached to the proximal end of the outer cannula for creating a negative pressure within the lumen of the outer cannula; the power supply system is connected to the near end of the electrocoagulation biopsy knife, and the distal puncture tip is electrically connected with the power supply system; the electrode plate is electrically connected with the power supply system in a grounding way, is attached to a human body when the electrocoagulation biopsy knife is operated, and forms a current loop with the far-end puncture tip; the far-end puncture tip is used for electro-coagulation, and the high-frequency electro-coagulation structure is attached to the far-end puncture tip of the outer sleeve in the operation process, so that the hemostasis and coagulation can be realized in the operation process or after the operation, and the occurrence of complications of the biopsy operation can be reduced.
Description
Technical Field
The invention relates to a minimally invasive surgery device, in particular to an electrocoagulation biopsy knife.
Background
The breast tumor refers to the abnormal proliferation of cells of certain tissues in a human body, and biopsy puncture guided by imaging is the best qualitative diagnosis method for the breast tumor at present. Biopsy devices are commonly used to perform biopsy sampling of breast tumors. Conventional biopsy devices are primarily designed for aspiration cutting, and typically include a brake handle and a rotary cutter mounted to the brake handle. The rotary cutting tool comprises an inner sleeve, an outer sleeve sleeved on the inner sleeve and a puncture head arranged at the head of the outer sleeve. The outer knife sleeve is provided with a sampling groove along the radial direction near the front end, after the outer knife sleeve is punctured into the epidermis, the tumor tissue is sucked into the sampling groove under the action of vacuum negative pressure, and at the moment, the inner sleeve is rotationally cut forwards to cut the tumor tissue and is contained in the inner sleeve. However, there are potential complications during biopsy surgery, including hematoma, bleeding, infection, etc.; the puncture head may bleed more than once from the punctured epidermis to the epidermis, thereby affecting the operation or compromising the safety of the patient.
Disclosure of Invention
In order to solve the technical problem, the invention provides an electrocoagulation biopsy knife, which comprises:
an outer cannula comprising a lumen for receiving the inner cannula, an axial slot for biopsy sampling and a distal piercing tip;
the inner sleeve comprises a rotary cutting end part for rotary cutting tissues and an inner cavity for accommodating cut tissues, and the inner sleeve can rotate and axially move in the outer sleeve;
a vacuum system attached at the proximal end of the outer cannula for creating a negative pressure within the outer cannula lumen;
a power supply system for providing electrical energy to the electrocoagulation biopsy knife;
the electrocoagulation biopsy knife is provided with a far-end spine part, and the far-end spine part is connected with the power supply system;
the electrode plate is electrically connected with the power supply system in a grounding way, is attached to a human body when the electrocoagulation biopsy knife is operated, and forms a current loop with the far-end puncture tip;
the distal piercing tip is for electro-coagulation.
Furthermore, the power supply system also comprises an electric connection wire, the electric connection wire is arranged at the near end of the outer sleeve and is electrically connected with the outer sleeve, the whole outer sleeve is made of non-insulating materials, the outer sleeve except the far-end puncture tip is covered by insulating materials, and the far-end puncture tip of the outer sleeve is electrically connected with the outer sleeve.
Furthermore, the power supply system also comprises an electric connecting wire arranged in the outer sleeve shell, and the main body part of the outer sleeve is made of insulating materials; the far end puncture tip of the outer sleeve is electrically connected with the electric connecting wire.
Further, the surface of the electrode plate is a rough surface.
Furthermore, the stroke of the inner sleeve moving in the outer sleeve in the axial direction is 1.2-1.5 times of the length of the axial groove of the outer sleeve.
Further, the insulating material covering the outer sleeve is rubber or plastic.
Advantageous effects
The electrocoagulation biopsy knife provided by the invention sucks soft tissue to the inner sleeve by utilizing vacuum negative pressure, the mammary gland tumor is cut, sampled and biopsied by the inner sleeve, and the distal tip of the outer sleeve is attached with a high-frequency electrocoagulation structure in the operation process, so that hemostasis and coagulation can be realized in the operation process or after the operation, and the occurrence of biopsy operation complications can be reduced.
Because the surface structure of the electrode plate attached to the human body is rough, the current formed when the electrode plate and the distal puncture tip form a current loop under the determined supply power when the electrocoagulation biopsy knife is operated is smaller, thereby reducing the electrical damage to the tissues near the operation position.
Drawings
FIG. 1 is a schematic structural view of an electrocoagulation biopsy needle provided by the present invention.
FIG. 2 is a schematic structural view of one embodiment of an electrocoagulation biopsy needle provided by the present invention.
FIG. 3 is a schematic structural view of another embodiment of an electrocoagulation biopsy needle provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the "proximal end" is the end of the electrocoagulation biopsy knife that is relatively close to the operator when the operator is holding the electrocoagulation biopsy knife, and correspondingly, the "distal end" is the end of the electrocoagulation biopsy knife that is relatively far from the operator when the operator is holding the electrocoagulation biopsy knife.
Example 1
As shown in FIG. 1, an electrocoagulation biopsy knife 1 comprises a housing 2, an outer sleeve 3, an inner sleeve 4, a vacuum system 5, a power supply system 6, an electrode plate 7 and a tissue receiver 8. The shell 2 is made of plastic, and a driving system of the inner sleeve 4 is arranged in the shell and used for driving the inner sleeve to rotate and axially move.
The outer cannula 3 comprises a cavity for accommodating the inner cannula 4, an axial slot 31 for biopsy sampling and a distal puncturing tip 32, the outer cannula 3 can be made of metal material, wherein the distal puncturing tip 32 is relatively sharp and is used for puncturing into a human body, and the distal puncturing tip 32 is made of conductive material. The power supply system 6 comprises an electric connecting wire 61, the power supply system 6 is arranged at the proximal end of the outer casing 3 and is in single-pole electric connection with the outer casing 3 through the electric connecting wire 61, the power supply system 6 comprises a power supply and a power switch (not shown), and the outer casing 3 except for the distal puncture tip is covered by an insulating material 9; the distal piercing tip 32 of the outer cannula 3 is in electrical communication with the outer cannula 3. The electrode plate 7 is electrically connected to the power supply system 6. When the electrocoagulation biopsy knife 1 is used for blood coagulation and hemostasis, the electrode plate 7 needs to be attached to the surface of the skin close to the surgical site in advance, when a power switch of the power supply system is closed, an electric energy generator of the power supply system 6 outputs electric energy, and the electric energy enables proteins at the wound to be denatured through the far-end puncture tip portion 32 so as to realize monopolar electric coagulation. Since the outer sleeve 3 is covered with the insulating material 9 except for the distal puncture tip, thermal damage to the adjacent tissue by the outer sleeve 3 can be avoided during coagulation, wherein the insulating material 9 is made of plastic or rubber.
When the electrocoagulation biopsy knife 1 is operated, the electrode plate 7 is attached to the surface of the skin close to the operation part, and forms a current loop with the far-end puncture tip; because the electrode plate attached to the human body has a rough surface structure, the current formed when the electrocoagulation biopsy knife and the distal puncture tip form a current loop is smaller under the determined supply power when the electrocoagulation biopsy knife is operated, and therefore, the thermal damage to organs and tissues nearby the operation position can be reduced.
The inner sleeve 4 comprises a rotary cutting end part 41 for rotary cutting of tissues and an inner cavity 42 for containing the cut tissues, the rotary cutting end part 41 is in a sharp blade shape, and the inner sleeve 4 can rotate and move axially in the outer sleeve 3; a vacuum system 6 attached to the housing at the proximal end of the outer cannula 3 for creating a negative pressure within the lumen of the outer cannula 3.
When the outer sleeve 3 is guided into the tissue in the human body by the far-end puncture tip part 32, after the tissue position required to be sampled is marked, the vacuum system 6 is started, negative pressure is formed in the cavity of the outer sleeve 3, the sampled tissue is sucked into the cavity of the outer sleeve 3, at the moment, the driving system of the inner sleeve 4 is started, the inner sleeve 4 is pushed by the far end, the tissue in the cavity of the outer sleeve 3 is cut by the rotary cutting end part 41, the cut tissue enters the cavity of the inner sleeve 4, after the cutting is completed, the tissue cut in the cavity of the inner sleeve 4 enters the tissue container 8 at the near end of the electrocoagulation biopsy knife 1 under the action of the negative pressure formed by the vacuum system, and the tissue cutting.
Interior sleeve pipe 4 is at the intracavity axial displacement of outer tube 3 under actuating system's effect, and its axial displacement stroke is 1.2 times ~1.5 times of the axial fluting length of outer tube, and complete clean excision tissue sample when this length can guarantee the operation to avoid taking place the adhesion.
Example 2
As shown in FIG. 3, an electrocoagulation biopsy knife 1 comprises a housing 2, an outer sleeve 3, an inner sleeve 4, a vacuum system 5, a power supply system 6, an electrode plate 7 and a tissue receiver 8. The shell 2 is made of plastic, and a driving system of the inner sleeve 4 is arranged in the shell and used for driving the inner sleeve to rotate and axially move. The outer cannula 3 comprises a cavity for receiving the inner cannula 4, an axial slot for biopsy sampling and a distal piercing tip 32, the outer cannula 3 being made of an insulating material; the inner sleeve 4 comprises a rotary cutting end part 41 for rotary cutting tissues and an inner cavity 42 for accommodating cut tissues, and the inner sleeve 4 can rotate and axially move in the outer sleeve 3; a vacuum system 5 attached to the proximal end of the outer cannula 3 for creating a negative pressure within the lumen of the outer cannula 3; the power supply system 6 comprises an electrical connection wire 62 arranged at the proximal end of the outer cannula 3, the distal piercing tip 32 of the outer cannula 3 being electrically connected to the electrical connection wire, the distal piercing tip 32 being adapted for electro-coagulation.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. An electrocoagulation biopsy knife comprising:
an outer cannula comprising a lumen for receiving the inner cannula, an axial slot for biopsy sampling and a distal piercing tip;
the inner sleeve comprises a rotary cutting end part for rotary cutting tissues and an inner cavity for accommodating cut tissues, and the inner sleeve can rotate and axially move in the outer sleeve;
a vacuum system attached at the proximal end of the outer cannula for creating a negative pressure within the outer cannula lumen;
a power supply system for providing electrical energy to the electrocoagulation biopsy knife;
the method is characterized in that:
the electrocoagulation biopsy knife is provided with a far-end spine part, and the far-end spine part is connected with the power supply system;
the electrode plate is electrically connected with the power supply system in a grounding way, is attached to a human body when the electrocoagulation biopsy knife is operated, and forms a current loop with the far-end puncture tip;
the distal piercing tip is for electro-coagulation.
2. An electrocoagulation biopsy knife according to claim 1, wherein: the power supply system further comprises an electric connection wire, the electric connection wire is arranged at the near end of the outer sleeve and is electrically connected with the outer sleeve, the whole outer sleeve is made of non-insulating materials, the outer sleeve except for the far-end puncture tip portion is covered by insulating materials, and the far-end puncture tip portion of the outer sleeve is electrically connected with the outer sleeve.
3. An electrocoagulation biopsy knife according to claim 1, wherein: the power supply system also comprises an electric connecting wire arranged in the outer sleeve shell, and the main body part of the outer sleeve is made of insulating materials; the far end puncture tip of the outer sleeve is electrically connected with the electric connecting wire.
4. An electrocoagulation biopsy knife according to claim 2 or 3, wherein: the surface of the electrode plate is a rough surface.
5. An electrocoagulation biopsy knife according to claim 2 or 3, wherein: the stroke of the inner sleeve moving axially in the outer sleeve is 1.2-1.5 times of the length of the axial slot of the outer sleeve.
6. An electrocoagulation biopsy knife according to claim 2, wherein: the insulating material covering the outer sleeve is rubber or plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894251.4A CN112006727A (en) | 2020-08-31 | 2020-08-31 | Electrocoagulation biopsy knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010894251.4A CN112006727A (en) | 2020-08-31 | 2020-08-31 | Electrocoagulation biopsy knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112006727A true CN112006727A (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010894251.4A Pending CN112006727A (en) | 2020-08-31 | 2020-08-31 | Electrocoagulation biopsy knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112006727A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869785A (en) * | 2021-01-29 | 2021-06-01 | 重庆市人民医院 | Clinical sampling censorship equipment that uses of department of neurology |
| CN113413172A (en) * | 2021-05-11 | 2021-09-21 | 重庆西山科技股份有限公司 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5335671A (en) * | 1989-11-06 | 1994-08-09 | Mectra Labs, Inc. | Tissue removal assembly with provision for an electro-cautery device |
| CN1159908A (en) * | 1996-10-12 | 1997-09-24 | 姜宪委 | Tube for resection of soft tissue and device using the same |
| US20050203441A1 (en) * | 2004-03-12 | 2005-09-15 | Voegele James W. | Electrode sleeve for biopsy device |
| CN203400202U (en) * | 2013-07-12 | 2014-01-22 | 杨建华 | Cutting and coagulation combined high frequency electrotome |
| CN203789956U (en) * | 2014-03-05 | 2014-08-27 | 中国人民解放军第二军医大学 | Multifunctional needle for soft tissue biopsy and ablation |
| CN107714102A (en) * | 2017-10-18 | 2018-02-23 | 四川桢祥科技有限公司 | Can be stopped blooding biopsy tool |
| CN209713124U (en) * | 2019-02-11 | 2019-12-03 | 周雯 | A kind of thoracic surgery Minimally Invasive Surgery positioning coagulation needle |
| US20190388073A1 (en) * | 2017-03-03 | 2019-12-26 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Biopsy system for enhanced tissue harvesting |
-
2020
- 2020-08-31 CN CN202010894251.4A patent/CN112006727A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5335671A (en) * | 1989-11-06 | 1994-08-09 | Mectra Labs, Inc. | Tissue removal assembly with provision for an electro-cautery device |
| CN1159908A (en) * | 1996-10-12 | 1997-09-24 | 姜宪委 | Tube for resection of soft tissue and device using the same |
| US20050203441A1 (en) * | 2004-03-12 | 2005-09-15 | Voegele James W. | Electrode sleeve for biopsy device |
| CN203400202U (en) * | 2013-07-12 | 2014-01-22 | 杨建华 | Cutting and coagulation combined high frequency electrotome |
| CN203789956U (en) * | 2014-03-05 | 2014-08-27 | 中国人民解放军第二军医大学 | Multifunctional needle for soft tissue biopsy and ablation |
| US20190388073A1 (en) * | 2017-03-03 | 2019-12-26 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Biopsy system for enhanced tissue harvesting |
| CN107714102A (en) * | 2017-10-18 | 2018-02-23 | 四川桢祥科技有限公司 | Can be stopped blooding biopsy tool |
| CN209713124U (en) * | 2019-02-11 | 2019-12-03 | 周雯 | A kind of thoracic surgery Minimally Invasive Surgery positioning coagulation needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869785A (en) * | 2021-01-29 | 2021-06-01 | 重庆市人民医院 | Clinical sampling censorship equipment that uses of department of neurology |
| CN113413172A (en) * | 2021-05-11 | 2021-09-21 | 重庆西山科技股份有限公司 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
| CN113413172B (en) * | 2021-05-11 | 2023-09-29 | 重庆西山科技股份有限公司 | Electrotomy biopsy needle, electrotomy biopsy needle kit and vacuum assisted breast biopsy system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201201 |
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