CN210384031U - Electric pulse electrode handle device for endoscope - Google Patents
Electric pulse electrode handle device for endoscope Download PDFInfo
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- CN210384031U CN210384031U CN201920716585.5U CN201920716585U CN210384031U CN 210384031 U CN210384031 U CN 210384031U CN 201920716585 U CN201920716585 U CN 201920716585U CN 210384031 U CN210384031 U CN 210384031U
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- end sleeve
- handle device
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Abstract
The utility model relates to the technical field of pulse ablation, in particular to an electric pulse electrode handle device for an endoscope, which comprises an electrode component used for passing through a working channel of the endoscope and extending into a human body and a handle device used for installing the electrode component on the endoscope; the handle device comprises a front end part and a sliding part, wherein the front end part and the sliding part can slide relatively, the front end part is provided with a connecting piece used for being in butt joint with the endoscope, and the sliding part pushes or pulls the electrode assembly out or back from the front end part when the sliding part axially slides on the front end part. The front end part of the handle device is fixed on the endoscope to prevent the handle device from falling off in the use process, and the electrode assembly is sent into the endoscope or is drawn out from the endoscope through the sliding between the sliding part and the front end part, so that the electrode assembly is conveyed to a complicated area of a human body by utilizing a natural channel of the human body to perform ablation.
Description
Technical Field
The utility model relates to the technical field of pulse ablation, in particular to an electric pulse electrode handle device for an endoscope.
Background
At present, the clinical treatment of tumors is mainly radical surgical excision, but for tumors in dense areas of pancreas, bile duct, hepatic duct and other ducts, the wounds of open surgery are large, the healing time of the wounds is long, and the wounds cannot touch water during the healing period of the wounds, so that inconvenience is brought to the daily life of patients.
The medical endoscope can enter the human body through a natural pore canal of the human body or a small incision made by operation, and the wound caused to the human body is small by examining through the endoscope. Some endoscopes even have working channels, can carry special equipment, and have multiple functions of illumination, operation, irrigation, suction and the like, and the endoscope with the working channels undoubtedly provides possibility for application of the electric pulse ablation technology.
For this reason, there is a need for a device capable of delivering electrodes of an electrical pulse ablation apparatus into the body by means of an endoscope, so as to reduce the trauma to the human body when treating tumors in dense areas of the pancreas, bile duct, hepatic duct, and the like.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to overcome the above-mentioned defects existing in the prior art, and to provide an electric pulse electrode handle device for an endoscope.
In order to achieve the above object, the utility model discloses a following technical scheme can realize: an electric pulse electrode handle device for an endoscope, comprising an electrode assembly for passing through a working channel of the endoscope and extending into a human body, and a handle device for mounting the electrode assembly on the endoscope; the handle device comprises a front end part and a sliding part, wherein the front end part and the sliding part can slide relatively, the front end part is provided with a connecting piece used for being in butt joint with the endoscope, and the sliding part pushes or pulls the electrode assembly out or back from the front end part when the sliding part axially slides on the front end part.
Therefore, the front end part of the handle device is fixed on the endoscope, the handle device is prevented from falling off in the using process, the electrode assembly is sent into the endoscope or is drawn out from the endoscope through the sliding between the sliding part and the front end part, and the electrode assembly is conveyed to a complicated area of a human body to be ablated by utilizing a natural channel of the human body.
The utility model discloses further preferred scheme does: the electrode assembly is of a layered structure and comprises a central pole, a cylindrical pole and an outer sheath tube, wherein the outer side wall of the central pole is coated with an insulating layer, and the cylindrical pole is exposed at the part of the central pole, which covers the insulating layer; the central pole is arranged in the cylinder pole in a telescopic manner, and the cylinder pole is arranged in the outer sheath tube in a telescopic manner. In addition to this, the electrode assembly may also be a dual parallel electrode structure.
The utility model discloses further preferred scheme does: the handle device comprises a front end sleeve and an electrode needle tube used for fixing the outer sheath tube; the connecting piece is a luer connector, the luer connector is arranged at one end of the front end sleeve, and one end of the electrode needle tube is connected with the other end of the front end sleeve in a sliding mode in the axial direction; when the front end sleeve and the electrode needle tube relatively slide, the front end sleeve forms the front end part, and the electrode needle tube forms the sliding part. The distance between the sheath (electrode assembly) and the target can be fine-tuned by relative movement of the electrode needle to the front end sleeve.
The utility model discloses further preferred scheme does: the handle device also comprises a rear end sleeve which is connected with the other end of the electrode needle tube in a sliding way in the axial direction; the rear end sleeve is fixedly connected with the cylinder pole; when the rear sleeve and the electrode needle tube relatively slide, the front sleeve and the electrode needle tube form the front end part, the rear sleeve forms the sliding part, and the rear sleeve drives the tube pole to axially move in the outer sheath tube.
When the electrode assembly reaches a proper position, the positions of the electrode needle tube and the front end sleeve are kept unchanged, and the rear end sleeve can axially move in the outer sheath tube by driving the tube pole (simultaneously driving the inner central pole) only by moving the rear end sleeve forwards along the axial direction of the electrode needle tube, so that the tube pole and the central pole extend out of the outer sheath tube to penetrate into an ablation target.
The utility model discloses further preferred scheme does: the front end sleeve and the rear end sleeve are sleeved at the end part of the electrode needle tube; the front end sleeve and the rear end sleeve are provided with radial through holes, and fastening bolts for fastening the electrode needle tubes are arranged in the through holes. The electrode needle tube and the front end sleeve can be conveniently fixed through the fastening bolt, or the electrode needle tube, the rear end sleeve and the front end sleeve are fixed together, so that other parts cannot be touched to move when the tube pole and the center pole are respectively pushed.
The utility model discloses further preferred scheme does: the outer wall of the electrode needle tube is provided with a guide groove extending along the axial direction, and the end parts of the front end sleeve and the rear end sleeve connected with the electrode needle tube are provided with guide sleeves used for sliding in the guide groove. Prevent the electrode needle cylinder, the front sleeve and the rear sleeve from rotating circumferentially.
The utility model discloses further preferred scheme does: the free end of the rear end sleeve is provided with a tube seat for fixing the tube pole and a tube pole wiring seat arranged on the tube seat; the central pole penetrates through the tube seat and the tube pole wire holder and is connected with the central pole wire holder. The tail end of the tube seat is also provided with a loose screw for fastening the central pole, the front end of the loose screw is provided with a fission type screw head, and the central pole is fastened on the tube seat by shrinkage in the screwing process. The tail end of the tube seat is provided with two tube openings, one tube opening is used for installing a loose screw, and the other tube opening is used for installing a tube pole wiring seat.
The utility model discloses further preferred scheme does: the electrode needle tube outer wall is equipped with along the axial and sets up the scale, be equipped with the observation hole that is used for watching the scale number of degrees on front end sleeve and the rear end sleeve.
The utility model discloses further preferred scheme does: two ends of the electrode needle tube are respectively provided with a cap for plugging the tube orifice and fixing the outer sheath tube; the cap is annular, the cross section of the cap is L-shaped and comprises a small-diameter end and a large-diameter end, the outer wall of the small-diameter end is in interference fit with the pipe orifice of the electrode needle tube, the inner wall of the small-diameter end is attached to the outer sheath tube, and the large-diameter end is attached to the port of the electrode needle tube and seals the guide groove, so that the electrode needle tube is prevented from being separated from the front end sleeve or the rear end sleeve.
To sum up, the utility model discloses following beneficial effect has: the electrode is fixed on the endoscope by utilizing the handle device, the needle insertion/withdrawal of the whole electrode (the central pole and the barrel pole are synchronous) and the length of the central pole extending out of the barrel pole are controlled by respectively moving the electrode needle cylinder and the rear sleeve, so that the electrode is conveyed into the body through the natural orifice of the human body, and the injury to the human body is reduced; in addition, the length of the central pole extending out of the barrel pole is controlled in the ablation process to control the size of an ablation electric field.
Drawings
FIG. 1 is a schematic view of the handle set mounted on an endoscope;
FIG. 2 is a schematic view of the handle assembly;
FIG. 3 is a cross-sectional view of the handle device;
fig. 4 is an exploded schematic view of the handle device.
In the figure: 1. an electrode assembly; 11. a center pole; 13. a cylinder pole; 14. an outer sheath tube; 2. a front end sleeve; 21. a luer fitting; 3. an electrode needle tube; 31. a guide groove; 32. a guide sleeve; 4. a rear end sleeve; 51. a through hole; 52. fastening a bolt; 53. an observation hole; 54. capping; 61. a tube holder; 62. a barrel terminal wire holder; 63. a center pole wire holder; 7. an endoscope.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
As shown in fig. 1, 2, 3 and 4, there is shown an electric pulse electrode handle device for an endoscope 7, including an electrode assembly 1 for passing through a working channel of the endoscope 7 and extending into a human body, and a handle device for mounting the electrode assembly 1 on the endoscope 7.
The handle device comprises a front end part and a sliding part, wherein the front end part can slide relatively, the front end part is provided with a connecting piece for being in butt joint with the endoscope 7, and the sliding part pushes or pulls the electrode assembly 1 out of or back from the front end part when the sliding part slides axially on the front end part.
The front end part of the handle device is fixed on the endoscope 7 to prevent the handle device from falling off in the using process, and the electrode assembly 1 is sent into the endoscope 7 or is drawn out from the endoscope 7 through the sliding between the sliding part and the front end part, so that the electrode assembly 1 is conveyed to a complicated area of a human body by utilizing a natural channel of the human body to perform ablation.
In the present embodiment, the electrode assembly 1 has a layered structure, and includes a central pole 11, a cylindrical pole 13, and an outer sheath 14, wherein an insulating layer is coated on an outer sidewall of the central pole 11, and the cylindrical pole 13 is exposed at a portion of the central pole 11 covering the insulating layer; the central pole 11 is telescopically arranged in the tube pole 13, and the tube pole 13 is telescopically arranged in the outer sheath tube 14. Besides, the electrode assembly 1 may also be a dual parallel electrode structure.
In this embodiment, the handle unit includes a front end socket 2, an electrode needle tube 3 for holding the outer sheath tube 14, and a rear end socket 4 slidably connected to the other end of the electrode needle tube 3 in the axial direction. The connecting piece is a luer connector 21, the luer connector 21 is arranged at one end of the front end sleeve 2, and one end of the electrode needle tube 3 is connected with the other end of the front end sleeve 2 in a sliding mode in the axial direction.
When the distal end hub 2 and the electrode needle tube 3 slide relative to each other, the distal end hub 2 forms a distal end portion and the electrode needle tube 3 forms a sliding portion. The distance between the sheath 14 (electrode assembly 1) and the target can be finely adjusted by the relative movement of the electrode needle 3 to the distal hub 2.
The rear sleeve 4 is fixedly connected with the cylinder pole 13. When the rear end sleeve 4 and the electrode needle tube 3 relatively slide, the front end sleeve 2 and the electrode needle tube 3 form a front end portion, the rear end sleeve 4 forms a sliding portion, and the rear end sleeve 4 drives the tube pole 13 to axially move in the outer sheath tube 14.
The front sleeve 2 and the rear sleeve 4 are sleeved on the end part of the electrode needle tube 3. The front end socket 2 and the rear end socket 4 are provided with radial through holes 51, and fastening bolts 52 for fastening the electrode needle tubes 3 are provided in the through holes 51. The fixing of the electrode needle tube 3 and the front end socket 2 or the fixing of the electrode needle tube 3 and the rear end socket 4 together with the front end socket 2 can be facilitated by fastening the bolts 52 so as not to trigger the other components to move when pushing the tube pole 13 and the center pole 11, respectively.
In order to prevent circumferential rotation of the electrode cylinder, the front end sleeve 2 and the rear end sleeve 4. The outer wall of the electrode needle tube 3 is provided with a guide groove 31 extending in the axial direction, and the front end sleeve 2 and the rear end sleeve 4 are provided with a guide sleeve 32 for sliding in the guide groove 31 at the end connected to the electrode needle tube 3.
The two ends of the electrode needle tube 3 are respectively provided with a cap 54 for plugging the tube opening and fixing the outer sheath tube 14. The cap 54 is annular, and its cross-section is L-shaped, and includes a small diameter end and a large diameter end, the outer wall of the small diameter end is in interference fit with the orifice of the electrode needle tube 3, the inner wall thereof is fitted outside the sheath tube 14, and the large diameter end is fitted to the port of the electrode needle tube 3 and seals the guide groove 31, so as to prevent the electrode needle tube 3 from breaking away from the front end sleeve 2 or the rear end sleeve 4.
The free end (tip) of the rear sleeve 4 is provided with a tube holder 61 for fixing the tube pole 13 and a tube pole wire holder 62 provided on the tube holder 61. The center pole 11 is inserted through the tube holder 61 and the barrel pole wire holder 62 and connected to the center pole wire holder 63.
The tail end of the tube seat 61 is also provided with a loose screw for fastening the central pole 11, the front end of the loose screw is provided with a fission type screw head, and the central pole 11 is fastened on the tube seat 61 by shrinkage in the screwing process. The end of the tube holder 61 has two orifices, one for mounting a turnbuckle screw, and the other for mounting the barrel terminal holder 62.
In order to facilitate observation of the moving distance of the electrode assembly 1 or the tube electrode 13 during fine adjustment, the outer wall of the electrode needle tube 3 is provided with a graduated scale along the axial direction, and the front end sleeve 2 and the rear end sleeve 4 are provided with observation holes 53 for observing the degree of the graduated scale.
Claims (9)
1. An electric pulse electrode handle device for an endoscope, characterized in that:
comprises an electrode assembly (1) for passing through a working channel of an endoscope (7) and extending into the human body, and a handle device for mounting the electrode assembly (1) on the endoscope (7);
the handle device comprises a front end part and a sliding part, wherein the front end part and the sliding part can slide relatively, the front end part is provided with a connecting piece used for being in butt joint with an endoscope (7), and the sliding part pushes or pulls the electrode assembly (1) out or back from the front end part when the sliding part axially slides on the front end part.
2. The electrode handle apparatus of claim 1, wherein: the electrode assembly (1) is of a layered structure and comprises a central pole (11), a cylindrical pole (13) and an outer sheath tube (14), wherein an insulating layer is coated on the outer side wall of the central pole (11), and the cylindrical pole (13) is exposed from the part, covered by the insulating layer, of the central pole (11); the central pole (11) is arranged in the tube pole (13) in a telescopic mode, and the tube pole (13) is arranged in the outer sheath tube (14) in a telescopic mode.
3. The electric pulse electrode handle device according to claim 2, wherein: the handle device comprises a front end sleeve (2) and an electrode needle tube (3) for fixing an outer sheath tube (14); the connecting piece is a luer connector (21), the luer connector (21) is arranged at one end of the front end sleeve (2), and one end of the electrode needle tube (3) is connected with the other end of the front end sleeve (2) in a sliding mode in the axial direction; when the front end sleeve (2) and the electrode needle tube (3) relatively slide, the front end sleeve (2) forms the front end part, and the electrode needle tube (3) forms the sliding part.
4. The electric pulse electrode handle device according to claim 3, wherein: the handle device also comprises a rear end sleeve (4) which is connected with the other end of the electrode needle tube (3) in a sliding way in the axial direction; the rear end sleeve (4) is fixedly connected with the cylinder pole (13); when the rear end sleeve (4) and the electrode needle tube (3) relatively slide, the front end sleeve (2) and the electrode needle tube (3) form the front end part, the rear end sleeve (4) forms the sliding part, and the rear end sleeve (4) drives the tube pole (13) to axially move in the outer sheath tube (14).
5. The electric pulse electrode handle device according to claim 4, wherein: the front end sleeve (2) and the rear end sleeve (4) are sleeved at the end part of the electrode needle tube (3); the front end sleeve (2) and the rear end sleeve (4) are provided with radial through holes (51), and fastening bolts (52) used for fastening the electrode needle tubes (3) are arranged in the through holes (51).
6. The electric pulse electrode handle device as defined in claim 4 or 5, wherein: the electrode needle tube (3) is characterized in that the outer wall of the electrode needle tube (3) is provided with a guide groove (31) extending along the axial direction, and the end parts of the front end sleeve (2) and the rear end sleeve (4) connected with the electrode needle tube (3) are provided with guide sleeves (32) used for sliding in the guide groove (31).
7. The electric pulse electrode handpiece apparatus of claim 6, wherein: the free end of the rear end sleeve (4) is provided with a tube seat (61) for fixing the tube pole (13) and a tube pole wiring seat (62) arranged on the tube seat (61); the central pole (11) penetrates through the tube seat (61) and the tube pole wire holder (62) and is connected with the central pole wire holder (63).
8. The electric pulse electrode handpiece apparatus of claim 7, wherein: the electrode needle tube (3) outer wall is equipped with and sets up the scale along the axial, be equipped with on front end sleeve (2) and rear end sleeve (4) and be used for watching observation hole (53) of scale number of degrees.
9. The electric pulse electrode handpiece apparatus of claim 8, wherein: two ends of the electrode needle tube (3) are respectively provided with a cap (54) for plugging the tube orifice and fixing the outer sheath tube (14); the cap (54) is annular, the cross section of the cap is L-shaped and comprises a small-diameter end and a large-diameter end, the outer wall of the small-diameter end is in interference fit with the pipe orifice of the electrode needle tube (3), the inner wall of the small-diameter end is attached to the outer sheath tube (14), and the large-diameter end is attached to the port of the electrode needle tube (3) and plugs the guide groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716585.5U CN210384031U (en) | 2019-05-18 | 2019-05-18 | Electric pulse electrode handle device for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716585.5U CN210384031U (en) | 2019-05-18 | 2019-05-18 | Electric pulse electrode handle device for endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN210384031U true CN210384031U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920716585.5U Active CN210384031U (en) | 2019-05-18 | 2019-05-18 | Electric pulse electrode handle device for endoscope |
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| Country | Link |
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| CN (1) | CN210384031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288015A (en) * | 2021-12-30 | 2022-04-08 | 江西奇仁生物科技有限责任公司 | Multifunctional laparoscope electrode |
-
2019
- 2019-05-18 CN CN201920716585.5U patent/CN210384031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288015A (en) * | 2021-12-30 | 2022-04-08 | 江西奇仁生物科技有限责任公司 | Multifunctional laparoscope electrode |
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