CN219461370U - Negative pressure suction ablation electrode under laparoscope - Google Patents
Negative pressure suction ablation electrode under laparoscope Download PDFInfo
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- CN219461370U CN219461370U CN202320289747.8U CN202320289747U CN219461370U CN 219461370 U CN219461370 U CN 219461370U CN 202320289747 U CN202320289747 U CN 202320289747U CN 219461370 U CN219461370 U CN 219461370U
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- electrode
- negative pressure
- handle
- pressure suction
- core
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- 238000002679 ablation Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 206010028980 Neoplasm Diseases 0.000 abstract description 17
- 238000005452 bending Methods 0.000 abstract description 17
- 230000003902 lesion Effects 0.000 abstract description 2
- 210000001015 abdomen Anatomy 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 206010019695 Hepatic neoplasm Diseases 0.000 description 1
- 206010061902 Pancreatic neoplasm Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002357 laparoscopic surgery Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 201000002528 pancreatic cancer Diseases 0.000 description 1
- 231100000435 percutaneous penetration Toxicity 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model provides a laparoscopic negative pressure suction ablation electrode which comprises a handle and a sleeve screwed at the rear end of the handle, wherein the electrode penetrates through the handle and the sleeve and extends out of the front end of the handle, the electrode is connected with a tail wire in the sleeve, the electrode comprises a bending control sheath tube, a negative pressure suction inner tube and a barrel core electrode which are concentrically arranged from outside to inside, the bending control sheath tube is fixedly connected to an adjusting knob at the front end of the handle, the tail end of the negative pressure suction inner tube is fixedly connected to an adjusting block at the middle section of the handle, the negative pressure suction inner tube is communicated with the negative pressure suction outer tube, and the tail end of the barrel core electrode is fixedly connected to the sleeve at the rear section of the handle and is connected with the tail wire. The utility model has the advantages that: the electrode is guided by the laparoscope, stretches into the surface of the lesion tissue from a small incision in the abdomen, locks the relative position between the tumor tissue and the electrode through negative pressure attraction, controls the electrode to puncture and enter the tumor tissue, and performs high-voltage pulse ablation on the tumor tissue.
Description
Technical Field
The utility model relates to the technical field of laparoscopic surgery, in particular to a negative pressure suction ablation electrode under a laparoscope.
Background
Currently, high voltage pulsed electric fields are used to treat liver and pancreatic tumors, typically by percutaneous penetration into tumor tissue under ultrasound or CT guidance. However, some complicated positions can not accurately find tumors through ultrasound or CT, or the percutaneous puncture position is blocked by a deeper barrier, or the tissues are stressed to retreat or deviate in the puncture process, so that the required positions can not be accurately punctured, and the treatment is not ideal or not completely influenced.
Disclosure of Invention
The utility model aims to provide a laparoscopic negative pressure suction ablation electrode which is reasonable in structural design and can realize efficient and accurate treatment.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
the utility model provides a negative pressure attracts ablation electrode under peritoneoscope, includes the handle, connects soon in the sleeve of handle rear end, and the electrode runs through in handle and sleeve and stretches out the handle front end, and the electrode links to each other with the tail wire in the sleeve, the electrode is by outer to interior including the curved sheath pipe of accuse, the negative pressure of concentric setting of drawing the inner tube, a section of thick bamboo core electrode, the curved sheath pipe fixed connection of accuse is on the knob of handle front end, the negative pressure draws on the regulating block of inner tube end fixed connection in the handle middle section, and the negative pressure draws the inner tube and is linked together with the negative pressure and attracts the outer tube, a section of thick bamboo core electrode end fixed connection is in the sleeve of handle rear section and links to each other with the tail wire.
Further, the handle comprises a conical front end, a cylindrical front section, a middle rear section and an adjusting block, wherein the front section and the middle rear section are integrally formed, the outer diameter of the front section is larger than that of the middle rear section, the adjusting block can slide back and forth in the middle section of the handle, and the sleeve can slide back and forth in the rear section of the handle.
Further, a stop block is arranged between the middle section and the rear section of the handle.
Further, an elastic knob is arranged on the sleeve.
Further, the front end of the negative pressure suction inner tube is umbrella-shaped.
Further, the cylinder core electrode comprises a core electrode, a cylinder electrode, a core electrode insulating layer, a cylinder electrode insulating layer and a copper core insulating spacer; the outer side of the core electrode is wrapped with a core electrode insulating layer, the cylindrical electrode is arranged at the rear section of the core electrode in a surrounding manner, and the outer side of the cylindrical electrode is wrapped with the cylindrical electrode insulating layer; the front section of the core electrode is thicker and exposed outside, the top end of the core electrode is in a needle point shape, a copper core insulating spacer is arranged between the cylinder electrode and the front section of the core electrode, and the copper core insulating spacer is wrapped outside the core electrode insulating layer.
Compared with the prior art, the utility model has the following advantages:
the negative pressure suction ablation electrode under the laparoscope has reasonable structural design and realizes high-efficiency and accurate treatment. Specifically, the electrode is guided by a laparoscope, extends into the surface of the lesion tissue from a small abdominal incision, locks the relative position between the tumor tissue and the electrode through negative pressure attraction, controls the electrode to puncture into the tumor tissue, and performs high-voltage pulse ablation on the tumor tissue.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a laparoscopic negative pressure suction ablation electrode according to the present utility model.
Fig. 2 is a schematic cross-sectional view of the handle of the present utility model.
Fig. 3 is a schematic diagram (a) of the negative pressure suction electrode piercing operation of the present utility model.
Fig. 4 is a schematic diagram (two) of the negative pressure suction electrode piercing operation of the present utility model.
Fig. 5 is a schematic view (iii) of the negative pressure suction electrode piercing operation of the present utility model.
Fig. 6 is a schematic structural view of a cartridge electrode of the present utility model.
Fig. 7 is a schematic view of the structure of the negative pressure suction inner tube of the present utility model.
Fig. 8 is a schematic view of the structure of the front end of the negative pressure suction inner tube of the present utility model.
Fig. 9 is a schematic view of the structural connection of the front end of the handle of the present utility model.
Reference numerals: 1. a handle; 11. an adjustment knob; 111. a knob; 112. a fixed rod; 113. moving the block; 114. a soft rubber sleeve; 12. an adjusting block; 2. a sleeve; 3. an electrode; 31. controlling the bending sheath tube; 32. suction inner tube of negative pressure; 33. a cartridge electrode; 331. a core electrode; 332. a cylinder electrode; 333. a core insulation layer; 334. a cylinder insulating layer; 335. copper core insulating spacer bush; 4. a tail wire; 5. negative pressure attracts the outer tube; 6. a stop block; 7. and (5) loosening and tightening the knob.
Description of the embodiments
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the laparoscopic negative pressure suction ablation electrode comprises a handle 1 and a sleeve 2 screwed at the rear end of the handle 1, an electrode 3 penetrates through the handle 1 and the sleeve 2 and extends out of the front end of the handle 1, the electrode 3 is connected with a tail wire 4 in the sleeve 2, the electrode 3 comprises a bending control sheath tube 31, a negative pressure suction inner tube 32 and a barrel core electrode 33 which are concentrically arranged from outside to inside, the bending control sheath tube 31 is fixedly connected to an adjusting knob 11 at the front end of the handle 1, as shown in fig. 7 and 8, the tail end of the negative pressure suction inner tube 32 is fixedly connected to an adjusting block 12 at the middle section of the handle 1, the front end of the negative pressure suction inner tube 32 is umbrella-shaped, the negative pressure suction inner tube 32 is communicated with the negative pressure suction outer tube 5, the tail wire 33 is fixedly connected to the sleeve 2 at the rear section of the handle 1 and is connected with the tail wire 4, and the tail wire 4 is externally connected with high-voltage pulse equipment.
As shown in fig. 6, the cylindrical core electrode 33 includes a core electrode 331, a cylindrical electrode 332, a core electrode insulating layer 333, a cylindrical electrode insulating layer 334, and a copper core insulating spacer 335; the outer side of the core pole 331 is wrapped with a core pole insulating layer 333, the cylindrical pole 332 is annularly arranged at the rear section of the core pole 331, and the outer side of the cylindrical pole 332 is wrapped with a cylindrical pole insulating layer 334; the front section of the core pole 331 is thicker and exposed outside, the top end of the core pole 331 is in a needle point shape, a copper core insulation spacer 335 is arranged between the cylinder pole 332 and the front section of the core pole 331, and the copper core insulation spacer 335 is wrapped outside the core pole insulation layer 333. Wherein, a cylinder core electrode principle is: a high-voltage pulse is applied between the exposed section of the front core electrode 331 and the exposed section of the cylindrical electrode 332 to form a spherical or ellipsoidal electric field, and the electric field range is dependent on the insulation length between the cylindrical electrode 332 and the core electrode 331 and the applied voltage; except for the two exposed sections of the cylinder 332 and core 331, the remainder needs to be insulated to ensure that no discharge occurs at unwanted locations.
The handle 1 comprises a conical front end, a cylindrical front section, a middle rear section and an adjusting block, wherein the front section and the middle rear section are integrally formed, the outer diameter of the front section is larger than that of the middle rear section, the adjusting block 12 can slide back and forth in the middle section of the handle 1, and the sleeve 2 can slide back and forth in the rear section of the handle 1. Specifically, the middle and rear section of the handle 1 is provided with a stop block 6, the stop block 6 is used as a limit for sliding of the regulating block 12, and the regulating block 12 can slide between the starting point of the middle and rear section of the handle 1 and the stop block 6; the stop 6 may also act as a boundary dividing the middle and rear sections of the handle 1, said sleeve 2 being slidable on the handle 1 behind the stop 6, i.e. the sleeve 2 being slidable on the rear section of the handle 1. The sleeve 2 is provided with an elastic knob 7: when the sleeve 2 needs to slide, the elastic knob 7 is loosened, and the sleeve 2 can slide freely; after the sleeve 2 is slid to a predetermined position, the tightening knob 7 is tightened to fix the sleeve 2 to a certain position of the rear section of the handle 1.
As shown in fig. 9, the adjusting knob 11 at the front end of the handle 1 includes a knob 111, a fixing rod 112, a moving block 113 and a flexible rubber sleeve 114, the fixing rod 112 is fixedly sleeved on the front section of the handle 1, the flexible rubber sleeve 114 is arranged on the front section of the fixing rod 112, the knob 111 is sleeved on the outer side of the fixing rod 112, a bending control sheath tube 31 is sleeved between the knob 111 and the fixing rod 112, a bending control wire at the tail end of the bending control sheath tube 31 is fixedly connected in the moving block 113, and the moving block 113 can slide back and forth along the fixing rod 112 along with the rotation of the knob 111. In the operation process, the knob 111 is manually rotated to drive the moving block 113 to slide back and forth along the fixing rod 112, and the bending control metal wire of the bending control sheath 31 can be pulled to adjust the angle of the bending control sheath 31.
For the negative pressure suction electrode piercing operation, as shown in fig. 3, 4, 5. As shown in fig. 3, the bending control sheath 31 gradually approaches to the tumor tissue, as shown in fig. 4, after approaching to a certain degree, the negative pressure attracts the inner tube 32 to extend out of the bending control sheath 31, the umbrella-shaped shaping balloon at the front end of the negative pressure attracts the inner tube 32 to adsorb and lock the tumor tissue, as shown in fig. 5, then the barrel core electrode 33 extends out and pierces into the tumor tissue, and high-voltage pulse ablation is performed on the tumor tissue by a high-voltage pulse device communicated with the tail end of the barrel core electrode 33.
The utility model relates to a working principle of a negative pressure suction ablation electrode under a laparoscope, which comprises the following steps: under the guidance of a laparoscope, the front end of the bending control sheath tube 31 is held by a hand to extend into and approach to tumor tissues from a small abdominal incision, the bending control sheath tube 31 is adjusted to a proper puncture angle through the adjusting knob 11, then the adjusting block 12 is pushed along the front section direction of the handle 1, the adjusting block 12 drives the negative pressure suction inner tube 32 to extend out of the bending control sheath tube 31, the front end of the negative pressure suction inner tube 32 is umbrella-shaped and provided with a shaping semi-balloon, the negative pressure suction inner tube 32 is automatically opened and is close to the tumor tissues, the negative pressure suction outer tube 5 and the negative pressure suction device connected with the rear end of the negative pressure suction inner tube provide negative pressure for the negative pressure suction inner tube, the tumor positions can be adsorbed and locked, the sleeve 2 is pushed along the front section direction of the handle 1, the sleeve 2 drives the sleeve core electrode 33 to puncture and enter the tumor tissues, and the rear end of the sleeve core electrode 33 is connected with the tail wire 4 and high-voltage pulse equipment, so that high-voltage pulse ablation can be performed on the tumor tissues. After the treatment is finished, the cylindrical core electrode 33, the negative pressure suction inner tube 32 and the bending control sheath tube 31 are withdrawn from the body in sequence.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (6)
1. The utility model provides a negative pressure attracts ablation electrode under peritoneoscope, includes the handle, connects soon in the sleeve of handle rear end, and the electrode runs through in handle and sleeve and stretches out the handle front end, and the electrode links to each other its characterized in that with the tail in the sleeve: the electrode is from outside to inside including the curved sheath of accuse, negative pressure suction inner tube, the section of thick bamboo core electrode that set up concentrically, the curved sheath of accuse is fixed connection on the knob of handle front end, negative pressure suction inner tube end fixed connection is on the regulating block in handle middle section, and negative pressure suction inner tube is linked together with negative pressure suction outer tube, section of thick bamboo core electrode end fixed connection is in the sleeve of handle rear section and links to each other with the tail wire.
2. A laparoscopic negative pressure suction ablation electrode according to claim 1, wherein: the handle comprises a conical front end, a cylindrical front section, a middle rear section and an adjusting block, wherein the front section and the middle rear section are integrally formed, the outer diameter of the front section is larger than that of the middle rear section, the adjusting block can slide back and forth in the middle section of the handle, and the sleeve can slide back and forth in the rear section of the handle.
3. A laparoscopic negative pressure suction ablation electrode according to claim 2, wherein: a stop block is arranged between the middle section and the rear section of the handle.
4. A laparoscopic negative pressure suction ablation electrode according to claim 2 or 3, wherein: the sleeve is provided with an elastic knob.
5. A laparoscopic negative pressure suction ablation electrode according to claim 1 or 2, characterized in that: the front end of the negative pressure suction inner tube is umbrella-shaped.
6. The laparoscopic negative pressure suction ablation electrode of claim 5, wherein: the cylinder core electrode comprises a core electrode, a cylinder electrode, a core electrode insulating layer, a cylinder electrode insulating layer and a copper core insulating spacer; the outer side of the core electrode is wrapped with a core electrode insulating layer, the cylindrical electrode is arranged at the rear section of the core electrode in a surrounding manner, and the outer side of the cylindrical electrode is wrapped with the cylindrical electrode insulating layer; the front section of the core electrode is thicker and exposed outside, the top end of the core electrode is in a needle point shape, a copper core insulating spacer is arranged between the cylinder electrode and the front section of the core electrode, and the copper core insulating spacer is wrapped outside the core electrode insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320289747.8U CN219461370U (en) | 2023-02-23 | 2023-02-23 | Negative pressure suction ablation electrode under laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320289747.8U CN219461370U (en) | 2023-02-23 | 2023-02-23 | Negative pressure suction ablation electrode under laparoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219461370U true CN219461370U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320289747.8U Active CN219461370U (en) | 2023-02-23 | 2023-02-23 | Negative pressure suction ablation electrode under laparoscope |
Country Status (1)
| Country | Link |
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| CN (1) | CN219461370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117958958A (en) * | 2024-03-28 | 2024-05-03 | 浙江伽奈维医疗科技有限公司 | Hemorrhoid ablation electrode assembly, hemorrhoid ablation system and tissue ablation system for narrow space |
-
2023
- 2023-02-23 CN CN202320289747.8U patent/CN219461370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117958958A (en) * | 2024-03-28 | 2024-05-03 | 浙江伽奈维医疗科技有限公司 | Hemorrhoid ablation electrode assembly, hemorrhoid ablation system and tissue ablation system for narrow space |
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| GR01 | Patent grant |