CN114469328B - Support type high-frequency electric cutter for endoscopic submucosal stripping and use method - Google Patents
Support type high-frequency electric cutter for endoscopic submucosal stripping and use method Download PDFInfo
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- CN114469328B CN114469328B CN202210092721.4A CN202210092721A CN114469328B CN 114469328 B CN114469328 B CN 114469328B CN 202210092721 A CN202210092721 A CN 202210092721A CN 114469328 B CN114469328 B CN 114469328B
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- 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
- A61B18/1482—Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
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- 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
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- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
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- 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
- A61B2018/00607—Coagulation and cutting with the same instrument
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Abstract
A supporting type high-frequency electric cutter for endoscopic submucosal stripping and a use method thereof belong to the field of medical appliances, and the electric cutter comprises a control part, a cable line, an insulating protection tube, a cutter head, a guide wire, a connecting sheet, a shaft pin, a fixing ring, a supporting sheet and a sheath tube; the control part is connected with the tool bit through a cable, and an insulating protection tube is sleeved on the periphery of the cable; the front part of the insulating protection tube is sleeved with a fixed ring, and the fixed ring is provided with a shaft pin; the front end of the shaft pin is connected with the supporting piece, and the rear end of the shaft pin is connected with the connecting piece; the control part is connected with the connecting sheet through a guide wire; sheath tubes are sleeved on the peripheries of the insulation protection tube and the guide wire; according to the invention, the supporting sheet structure is arranged, so that the end part of the electric cutter can support the peeled pathological tissues while being used for endoscopic submucosal peeling and cutting, and the cutting progress is followed in real time, thereby effectively exposing submucosal focus, widening the field of view, improving the success rate of operation and shortening the operation time.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a supporting type high-frequency electric cutter for endoscopic submucosal dissection and a use method thereof, which are applied to endoscopic submucosal tissue dissection and lesion support.
Background
Endoscopic Submucosal Dissection (ESD) is a widely applied endoscopic digestive tract mucosa resection technique, and compared with other mucosa resection techniques, the complete resection rate of lesions is higher, and is particularly suitable for the resection of early tumor lesions with larger diameter (more than 2 cm).
The endoscopic submucosal stripping focus needs to be stripped by using a high-frequency electric cutter, and the electric cutter head generates instant cauterization on contacted tissues through high-frequency and high-voltage current, so that the effects of cutting or coagulation are achieved, and the effects of separating the tissues and stopping bleeding are realized.
When the electric cutter is used for stripping submucosal tissues, the operation field is limited, so that the damage and perforation are very easy to cause, and a certain supporting effect is required to be played on the lesion bottom to expose submucosal layers.
At present, endoscopists mostly adopt a transparent cap as a supporting tool, but because the transparent cap has limited supporting effect, submucosa can not be completely exposed at some exposed or difficult-to-operate parts, so that larger resistance is generated for high-quality operation of the endoscope, and the success rate of the operation on the difficult parts is lower.
Disclosure of Invention
Aiming at the problems that the existing electric cutter is not supported by a transparent cap to achieve a good supporting effect and the visual field is still poor in exposure, the invention provides the supporting type high-frequency electric cutter for the submucosal peeling of the endoscope and the application method thereof. The specific technical scheme is as follows:
a supporting type high-frequency electric cutter for endoscopic submucosal dissection, which comprises a control part, a cable wire, an insulating protection tube 11, a cutter head 12, a guide wire 13, a connecting sheet 14, a shaft pin 15, a fixed ring 16, a supporting sheet 17 and a sheath tube 18;
the control part is connected with the tool bit 12 through a cable, and an insulating protection tube 11 is sleeved on the periphery of the cable; a fixed ring 16 is sleeved at the front part of the insulating protection tube 11, and a shaft pin 15 is arranged on the fixed ring 16; the front end of the shaft pin 15 is connected with a supporting sheet 17, and the rear end of the shaft pin 15 is connected with a connecting sheet 14; the control part is connected with a connecting sheet 14 through a guide wire 13; sheath tube 18 is sleeved on the periphery of the insulation protection tube 11 and the guide wire 13;
in the technical scheme, the control part comprises an operating rod 1, an operating handle thumb button 2, a sliding sleeve 3 and a pull ring 4; the tail end of the operating rod 1 is provided with an operating handle thumb button 2, the front part of the operating rod 1 is sleeved with a sliding sleeve 3, and both sides of the sliding sleeve 3 are provided with pull rings 4; the operating rod 1, the operating handle thumb button 2, the sliding sleeve 3 and the pull ring 4 control the expansion and the stripping cutting of the cutter head 12;
in the above technical scheme, the sleeve body of the sliding sleeve 3 is provided with a cable interface 5; the cable interface 5 is connected with a cable, and the cable interface 5 is externally connected with a power supply;
in the above technical scheme, the middle part of the operating rod 1 is provided with the limit groove 6, the inner side surface of the limit groove 6 is provided with the square limit frame 7, the limit groove 6 is internally provided with the limit plate in a facing manner, the limit plate is provided with the plurality of clamping grooves 8, and the clamping grooves 8 are internally provided with the spiral threads;
in the above technical scheme, the control part further comprises a cross rod 9 and a knob 10, the knob 10 is arranged at the outer end of the cross rod 9, spiral threads are arranged at the inner end of the cross rod 9, and the spiral threads of the cross rod 9 are screwed with the spiral threads of the clamping groove 8;
in the above technical scheme, the front side wall of the limit frame 7 is provided with a duct, and the guide wire 13 passes through the duct and is connected to the cross bar 9;
in the above technical solution, the cross bar 9 moves longitudinally along the limit groove 6, and controls the opening and closing of the supporting sheet 17 through the guide wire 13; the knob 10 is used for fixing the cross rod 9 to any clamping groove 8 through rotation, and controlling the opening and closing angle of the supporting piece 17;
in the above technical solution, the supporting plate 17 is in a sector shape with an arc surface; when the supporting sheet 17 is closed, the supporting sheet 17 is attached to the outside of the insulating protection pipe 11;
in the above technical solution, the supporting end of the supporting piece 17 is flush with the port of the insulating protection tube 11;
in the above technical solution, when the electric cutter is in a non-working state, the cutter head 12 is located inside the insulation protection tube 11, the supporting sheet 17 is closed, and both the supporting sheet 17 and the insulation protection tube 11 are located inside the sheath tube 18;
in the above technical scheme, when the electric cutter is in a working state, the supporting sheet 17 and the insulation protection tube 11 extend out of the sheath tube 18, the supporting sheet 17 is opened, and the cutter head 12 extends out of the insulation protection tube 11;
in the technical scheme, the length of the supporting sheet 17 is 4-6 mm; the opening and closing angle of the supporting sheet 17 is 0-60 degrees.
The application method of the supporting type high-frequency electric cutter for endoscopic submucosal dissection comprises the following steps:
s1: extending the sheath 18 into the lesion;
s2, performing S2; the operation sliding sleeve 3 slides along the operation rod 1 to enable the insulation protection tube 11 and the supporting sheet 17 to extend out of the sheath tube 18;
s2: the cross bar 9 is operated, and the supporting sheet 17 is controlled to be opened so as to support mucous membrane and widen the visual field;
s3: the operation control part controls the cutter head 12 to extend out of the insulating protection tube 11 to start peeling.
The supporting type high-frequency electric cutter for endoscopic submucosal stripping and the use method thereof have the beneficial effects that compared with the prior art, the supporting type high-frequency electric cutter for endoscopic submucosal stripping has the following advantages:
1. the support sheet of the electric cutter provides a good visual field when the submucosal peeling is carried out, can synchronously contact with the peeling surface of the electric cutter, ensures that the high-frequency electric cutter supports lesions, exposes the peeling surface and simultaneously carries out submucosal peeling, and solves the problem that the transparent cap has weak supporting effect when an endoscope is difficult to approach to the exposed and difficult-to-operate part.
2. The end part of the support piece of the electric cutter is flush with the end opening of the insulation protection tube when the support piece is closed, and the support piece is designed to be in a cambered surface sector shape, so that the support piece can be well attached to the insulation protection tube, the space is reduced, the support piece can be smoothly embedded in the sheath tube, and the effect of integrally entering the sheath tube without damaging an inner channel is achieved.
3. According to the invention, the transverse rod is designed to longitudinally move along the limit groove to draw the guide wire, and the opening and closing of the supporting piece are controlled through the guide wire, so that the flexible opening and closing and supporting are convenient; the design of a plurality of clamping grooves can effectively enable the opening and closing of the supporting sheet to stay at any angle, can effectively adjust the supporting surface at any time according to the inner channel size and the cutting focus condition, and is more suitable for different operation environments.
4. The fixing ring and the supporting sheet structure can be disassembled to assemble the supporting sheets with different length and size, so that the fixing ring and the supporting sheet structure are convenient to maintain and adapt to the operation requirements of different environments.
5. When the supporting piece of the electric cutter is not required to be supported, the supporting piece can be controlled to be closed at any time, and the operation of the cutter head is not influenced.
6. According to the method, the supporting piece is firstly opened, and then the cutter head is stretched out for stripping, so that the open space can be effectively supported before the cutter head is stretched out, the cutter head is ensured to be stretched out safely, and the damage to mucous membrane caused by improper stretching of the cutter head is effectively prevented.
7. The electric cutter can save the supporting operation time of the transparent cap and the operation time of the traction auxiliary technology; in the whole operation process, the shortened operation time is different due to the different sizes and positions of the lesions.
In conclusion, the electric cutter can control the opening and closing of the supporting piece through the operation cross rod, fix the opening and closing angle of the supporting piece through the knob, adjust the exposure field of view according to the gravity action, well support lesions and avoid the sliding problem during supporting of the transparent cap in the prior art. The electric knife can be used for high-frequency electric knife electrocoagulation, can play a supporting role, does not influence the role of the high-frequency electric knife when the electric knife is not supported by a supporting sheet, and has wide application range. The time for supporting or traction is saved, the efficiency of the submucosal stripping operation of the endoscope is improved, the operation is simple and convenient, and the submucosal stripping time of the whole endoscope is shortened.
Drawings
Fig. 1 is a schematic structural view of a supporting high-frequency electric knife for endoscopic submucosal dissection according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an operating state of a supporting type high-frequency electric knife for endoscopic submucosal dissection according to an embodiment of the invention;
FIG. 3 is an enlarged view of the connection of the support tabs of FIG. 1;
in the figure, a 1-operating rod, a 2-operating handle thumb button, a 3-sliding sleeve, a 4-pull ring, a 5-cable interface, a 6-limit groove, a 7-limit frame, an 8-clamping groove, a 9-cross rod, a 10-knob, an 11-insulation protection tube, a 12-cutter head, a 13-guide wire, a 14-connecting sheet, a 15-shaft pin, a 16-fixing ring, a 17-supporting sheet and an 18-sheath tube are arranged.
Detailed Description
The invention will be further described with reference to specific embodiments and figures 1-3, but the invention is not limited to these embodiments.
Example 1
A supporting high-frequency electric cutter for endoscopic submucosal dissection, as shown in fig. 1-3, the electric cutter comprises a control part, a cable wire, an insulating protection tube 11, a cutter head 12, a guide wire 13, a connecting sheet 14, a shaft pin 15, a fixing ring 16, a supporting sheet 17 and a sheath tube 18; the control part is connected with the tool bit 12 through a cable, and an insulating protection tube 11 is sleeved on the periphery of the cable; the front part of the insulating protection tube 11 is sleeved with a fixed ring 16, and the fixed ring 16 is provided with a shaft pin 15; the front end of the shaft pin 15 is connected with a supporting sheet 17, and the rear end of the shaft pin 15 is connected with a connecting sheet 14; the control part is connected with a connecting sheet 14 through a guide wire 13; sheath tube 18 is sleeved on the periphery of the insulation protection tube 11 and the guide wire 13;
the control part comprises an operating rod 1, an operating handle thumb button 2, a sliding sleeve 3 and a pull ring 4; the tail end of the operating rod 1 is provided with an operating handle thumb button 2, the front part of the operating rod 1 is sleeved with a sliding sleeve 3, and both sides of the sliding sleeve 3 are provided with pull rings 4; the operating rod 1, the operating handle thumb button 2, the sliding sleeve 3 and the pull ring 4 control the expansion and the stripping cutting of the cutter head 12;
the sleeve body of the sliding sleeve 3 is provided with a cable interface 5; the cable interface 5 is connected with a cable, and the cable interface 5 is externally connected with a power supply;
the middle part of the operating rod 1 is provided with a limit groove 6, the inner side surface of the limit groove 6 is provided with a square limit frame 7, a limit plate is arranged opposite to the limit groove 6, a plurality of clamping grooves 8 are arranged on the limit plate, and spiral threads are arranged in the clamping grooves 8;
the control part also comprises a cross rod 9 and a knob 10, the knob 10 is arranged at the outer end of the cross rod 9, the inner end of the cross rod 9 is provided with spiral threads, and the spiral threads of the cross rod 9 are screwed with the spiral threads of the clamping groove 8;
the front side wall of the limit frame 7 is provided with a duct, and a guide wire 13 passes through the duct and is connected with the cross rod 9;
the cross bar 9 longitudinally moves along the limit groove 6 and controls the opening and closing of the supporting sheet 17 through the guide wire 13; the knob 10 is rotated to fix the cross rod 9 in any clamping groove 8, and the opening and closing angle of the supporting piece 17 is controlled;
the supporting sheet 17 is in a cambered surface sector shape; when the supporting sheet 17 is closed, the supporting sheet 17 is attached to the outside of the insulating protection pipe 11;
the supporting end of the supporting sheet 17 is flush with the port of the insulating protection pipe 11;
when the electric cutter is in a non-working state, the cutter head 12 is positioned in the insulating protection tube 11, the supporting sheet 17 is closed, and the supporting sheet 17 and the insulating protection tube 11 are positioned in the sheath tube 18;
when the electric cutter is in a working state, the supporting sheet 17 and the insulating protection tube 11 extend out of the sheath tube 18, the supporting sheet 17 is opened, and the cutter head 12 extends out of the insulating protection tube 11;
the length of the supporting sheet 17 of the electric knife of this embodiment is 5mm. In use, the sheath 18 is first extended into the lesion; then the operation sliding sleeve 3 slides along the operation rod 1 to enable the insulation protection tube 11 and the supporting sheet 17 to extend out of the sheath tube 18; then the cross rod 9 is operated, and the supporting piece 17 is controlled to be opened for 45 degrees so as to support mucous membrane and widen the visual field; finally, the operation control part controls the cutter head 12 to extend out of the insulation protection tube 11 to start stripping. The support piece can follow the support in real time, the support is stable, the operation is flexible, the visual field is more, the operation difficulty is effectively reduced, and the operation stripping time is saved by more than half.
Example 2
A supporting high-frequency electric cutter for endoscopic submucosal dissection, as shown in fig. 1-3, the electric cutter comprises a control part, a cable wire, an insulating protection tube 11, a cutter head 12, a guide wire 13, a connecting sheet 14, a shaft pin 15, a fixing ring 16, a supporting sheet 17 and a sheath tube 18; the control part is connected with the tool bit 12 through a cable, and an insulating protection tube 11 is sleeved on the periphery of the cable; the front part of the insulating protection tube 11 is sleeved with a fixed ring 16, and the fixed ring 16 is provided with a shaft pin 15; the front end of the shaft pin 15 is connected with a supporting sheet 17, and the rear end of the shaft pin 15 is connected with a connecting sheet 14; the control part is connected with a connecting sheet 14 through a guide wire 13; sheath tube 18 is sleeved on the periphery of the insulation protection tube 11 and the guide wire 13;
the control part comprises an operating rod 1, an operating handle thumb button 2, a sliding sleeve 3 and a pull ring 4; the tail end of the operating rod 1 is provided with an operating handle thumb button 2, the front part of the operating rod 1 is sleeved with a sliding sleeve 3, and both sides of the sliding sleeve 3 are provided with pull rings 4; the operating rod 1, the operating handle thumb button 2, the sliding sleeve 3 and the pull ring 4 control the expansion and the stripping cutting of the cutter head 12;
the sleeve body of the sliding sleeve 3 is provided with a cable interface 5; the cable interface 5 is connected with a cable, and the cable interface 5 is externally connected with a power supply;
the middle part of the operating rod 1 is provided with a limit groove 6, the inner side surface of the limit groove 6 is provided with a square limit frame 7, a limit plate is arranged opposite to the limit groove 6, a plurality of clamping grooves 8 are arranged on the limit plate, and spiral threads are arranged in the clamping grooves 8;
the control part also comprises a cross rod 9 and a knob 10, the knob 10 is arranged at the outer end of the cross rod 9, the inner end of the cross rod 9 is provided with spiral threads, and the spiral threads of the cross rod 9 are screwed with the spiral threads of the clamping groove 8;
the front side wall of the limit frame 7 is provided with a duct, and a guide wire 13 passes through the duct and is connected with the cross rod 9;
the cross bar 9 longitudinally moves along the limit groove 6 and controls the opening and closing of the supporting sheet 17 through the guide wire 13; the knob 10 is rotated to fix the cross rod 9 in any clamping groove 8, and the opening and closing angle of the supporting piece 17 is controlled;
the supporting sheet 17 is in a cambered surface sector shape; when the supporting sheet 17 is closed, the supporting sheet 17 is attached to the outside of the insulating protection pipe 11;
the supporting end of the supporting sheet 17 is flush with the port of the insulating protection pipe 11;
when the electric cutter is in a non-working state, the cutter head 12 is positioned in the insulating protection tube 11, the supporting sheet 17 is closed, and the supporting sheet 17 and the insulating protection tube 11 are positioned in the sheath tube 18;
when the electric cutter is in a working state, the supporting sheet 17 and the insulating protection tube 11 extend out of the sheath tube 18, the supporting sheet 17 is opened, and the cutter head 12 extends out of the insulating protection tube 11;
the length of the supporting sheet 17 of the electric knife of this embodiment is 4mm. In use, the sheath 18 is first extended into the lesion; then the operation sliding sleeve 3 slides along the operation rod 1 to enable the insulation protection tube 11 and the supporting sheet 17 to extend out of the sheath tube 18; then the cross rod 9 is operated, and the supporting sheet 17 is controlled to be opened for 30 degrees so as to support mucous membrane and widen the visual field; finally, the operation control part controls the cutter head 12 to extend out of the insulation protection tube 11 to start stripping. The support piece can follow the support in real time, the support is stable, the operation is flexible, the visual field is more, the operation difficulty is effectively reduced, and the operation stripping time is saved by more than half.
Example 3
A supporting high-frequency electric cutter for endoscopic submucosal dissection, as shown in fig. 1-3, the electric cutter comprises a control part, a cable wire, an insulating protection tube 11, a cutter head 12, a guide wire 13, a connecting sheet 14, a shaft pin 15, a fixing ring 16, a supporting sheet 17 and a sheath tube 18; the control part is connected with the tool bit 12 through a cable, and an insulating protection tube 11 is sleeved on the periphery of the cable; the front part of the insulating protection tube 11 is sleeved with a fixed ring 16, and the fixed ring 16 is provided with a shaft pin 15; the front end of the shaft pin 15 is connected with a supporting sheet 17, and the rear end of the shaft pin 15 is connected with a connecting sheet 14; the control part is connected with a connecting sheet 14 through a guide wire 13; sheath tube 18 is sleeved on the periphery of the insulation protection tube 11 and the guide wire 13;
the control part comprises an operating rod 1, an operating handle thumb button 2, a sliding sleeve 3 and a pull ring 4; the tail end of the operating rod 1 is provided with an operating handle thumb button 2, the front part of the operating rod 1 is sleeved with a sliding sleeve 3, and both sides of the sliding sleeve 3 are provided with pull rings 4; the operating rod 1, the operating handle thumb button 2, the sliding sleeve 3 and the pull ring 4 control the expansion and the stripping cutting of the cutter head 12;
the sleeve body of the sliding sleeve 3 is provided with a cable interface 5; the cable interface 5 is connected with a cable, and the cable interface 5 is externally connected with a power supply;
the middle part of the operating rod 1 is provided with a limit groove 6, the inner side surface of the limit groove 6 is provided with a square limit frame 7, a limit plate is arranged opposite to the limit groove 6, a plurality of clamping grooves 8 are arranged on the limit plate, and spiral threads are arranged in the clamping grooves 8;
the control part also comprises a cross rod 9 and a knob 10, the knob 10 is arranged at the outer end of the cross rod 9, the inner end of the cross rod 9 is provided with spiral threads, and the spiral threads of the cross rod 9 are screwed with the spiral threads of the clamping groove 8;
the front side wall of the limit frame 7 is provided with a duct, and a guide wire 13 passes through the duct and is connected with the cross rod 9;
the cross bar 9 longitudinally moves along the limit groove 6 and controls the opening and closing of the supporting sheet 17 through the guide wire 13; the knob 10 is rotated to fix the cross rod 9 in any clamping groove 8, and the opening and closing angle of the supporting piece 17 is controlled;
the supporting sheet 17 is in a cambered surface sector shape; when the supporting sheet 17 is closed, the supporting sheet 17 is attached to the outside of the insulating protection pipe 11;
the supporting end of the supporting sheet 17 is flush with the port of the insulating protection pipe 11;
when the electric cutter is in a non-working state, the cutter head 12 is positioned in the insulating protection tube 11, the supporting sheet 17 is closed, and the supporting sheet 17 and the insulating protection tube 11 are positioned in the sheath tube 18;
when the electric cutter is in a working state, the supporting sheet 17 and the insulating protection tube 11 extend out of the sheath tube 18, the supporting sheet 17 is opened, and the cutter head 12 extends out of the insulating protection tube 11;
the length of the supporting sheet 17 of the electric knife of this embodiment is 6mm. In use, the sheath 18 is first extended into the lesion; then the operation sliding sleeve 3 slides along the operation rod 1 to enable the insulation protection tube 11 and the supporting sheet 17 to extend out of the sheath tube 18; then the cross rod 9 is operated, and the supporting piece 17 is controlled to open by 60 degrees so as to support mucous membrane and widen the visual field; finally, the operation control part controls the cutter head 12 to extend out of the insulation protection tube 11 to start stripping. The support piece can follow the support in real time, the support is stable, the operation is flexible, the visual field is more, the operation difficulty is effectively reduced, and the operation stripping time is saved by more than half.
Claims (2)
1. A supporting type high-frequency electric cutter for endoscopic submucosal dissection, which is characterized by comprising a control part, a cable wire, an insulating protection tube (11), a cutter head (12), a guide wire (13), a connecting sheet (14), a shaft pin (15), a fixed ring (16), a supporting sheet (17) and a sheath tube (18);
the control part is connected with the tool bit (12) through a cable, and an insulating protection tube (11) is sleeved on the periphery of the cable; a fixed ring (16) is sleeved at the front part of the insulating protection tube (11), and a shaft pin (15) is arranged on the fixed ring (16); the front end of the shaft pin (15) is connected with the supporting sheet (17), the rear end of the shaft pin (15) is connected with the connecting sheet (14), and the structures of the fixing ring (16) and the supporting sheet (17) can be disassembled to assemble the supporting sheets (17) with different length sizes; the control part is connected with the connecting sheet (14) through the guide wire (13); sheath tubes (18) are sleeved on the peripheries of the insulation protection tube (11) and the guide wire (13);
the control part comprises an operating rod (1), an operating handle thumb button (2), a sliding sleeve (3) and a pull ring (4); the tail end of the operating rod (1) is provided with an operating handle thumb button (2), the front part of the operating rod (1) is sleeved with a sliding sleeve (3), and both sides of the sliding sleeve (3) are provided with pull rings (4); the operating rod (1), the operating handle thumb button (2), the sliding sleeve (3) and the pull ring (4) control the expansion and stripping cutting of the cutter head (12);
the middle part of the operating rod (1) is provided with a limit groove (6), the inner side surface of the limit groove (6) is provided with a square limit frame (7), a limit plate is arranged in the limit groove (6), a plurality of clamping grooves (8) are formed in the limit plate, and spiral threads are arranged in the clamping grooves (8);
the control part further comprises a cross rod (9) and a knob (10), the knob (10) is arranged at the outer end of the cross rod (9), spiral threads are arranged at the inner end of the cross rod (9), and the spiral threads of the cross rod (9) are screwed with the spiral threads of the clamping groove (8); the front side wall of the limit frame (7) is provided with a duct, and the guide wire (13) passes through the duct and is connected with the cross rod (9);
the cross rod (9) longitudinally moves along the limit groove (6) and controls the opening and closing of the supporting sheet (17) through the guide wire (13); the knob (10) is used for fixing the cross rod (9) in any clamping groove (8) through rotation, and the opening and closing angle of the supporting piece (17) is controlled;
the supporting sheet (17) is in a cambered surface sector shape; when the supporting sheet (17) is closed, the supporting sheet (17) is attached to the outside of the insulation protection tube (11); the supporting end of the supporting sheet (17) is flush with the port of the insulating protection tube (11);
the length of the supporting sheet (17) is 4-6 mm; the opening and closing angle of the supporting sheet (17) is 0-60 degrees;
when the electric cutter is in a non-working state, the cutter head (12) is positioned in the insulating protection tube (11), the supporting sheet (17) is closed, and the supporting sheet (17) and the insulating protection tube (11) are positioned in the sheath tube (18); under the working state of the electric knife, the sheath tube (18) stretches into a focus, the operation sliding sleeve (3) slides along the operation rod (1) to enable the insulation protection tube (11) and the support sheet (17) to stretch out of the sheath tube (18), and the operation cross rod (9) controls the support sheet (17) to stretch so as to support mucous membrane and widen the visual field; the operation control part controls the cutter head (12) to extend out of the insulation protection tube (11) to start stripping.
2. A supporting high-frequency electric cutter for endoscopic submucosal dissection according to claim 1, characterized in that the sleeve body of the sliding sleeve (3) is provided with a cable interface (5); and a cable is connected in the cable interface (5), and the cable interface (5) is externally connected with a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092721.4A CN114469328B (en) | 2022-01-26 | 2022-01-26 | Support type high-frequency electric cutter for endoscopic submucosal stripping and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092721.4A CN114469328B (en) | 2022-01-26 | 2022-01-26 | Support type high-frequency electric cutter for endoscopic submucosal stripping and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114469328A CN114469328A (en) | 2022-05-13 |
| CN114469328B true CN114469328B (en) | 2023-09-22 |
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|---|---|---|---|
| CN202210092721.4A Active CN114469328B (en) | 2022-01-26 | 2022-01-26 | Support type high-frequency electric cutter for endoscopic submucosal stripping and use method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110457A (en) * | 2013-01-16 | 2013-05-22 | 王实 | Mucous membrane separating scalpel |
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| JP4422472B2 (en) * | 2003-12-19 | 2010-02-24 | オリンパス株式会社 | Submucosa peeling treatment device and system |
| DE102017117749A1 (en) * | 2017-08-04 | 2019-02-07 | Olympus Winter & Ibe Gmbh | Electrode unit for a medical resectoscope |
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| CN103110457A (en) * | 2013-01-16 | 2013-05-22 | 王实 | Mucous membrane separating scalpel |
| CN209074787U (en) * | 2018-06-14 | 2019-07-09 | 武汉大学人民医院（湖北省人民医院） | Lesion removes equipment under a kind of novel endoscope mucous membrane |
| JP2020185035A (en) * | 2019-05-10 | 2020-11-19 | 小林 真 | Endoscopic electrocautery incision scissors |
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| CN212592392U (en) * | 2020-03-19 | 2021-02-26 | 广州市如本生物科技股份有限公司 | Novel injection high-frequency electric cutting function knife for endoscope |
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| CN114469328A (en) | 2022-05-13 |
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