CN108784828B - High-frequency electrotome with double tool bits for endoscope - Google Patents
High-frequency electrotome with double tool bits for endoscope Download PDFInfo
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- CN108784828B CN108784828B CN201810724543.6A CN201810724543A CN108784828B CN 108784828 B CN108784828 B CN 108784828B CN 201810724543 A CN201810724543 A CN 201810724543A CN 108784828 B CN108784828 B CN 108784828B
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- tool bit
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- knife
- endoscope
- head
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- 238000013016 damping Methods 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 208000032843 Hemorrhage Diseases 0.000 description 6
- 208000037062 Polyps Diseases 0.000 description 5
- 230000000740 bleeding effect Effects 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 230000003902 lesion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000004400 mucous membrane Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000012326 endoscopic mucosal resection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
Classifications
-
- 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
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1412—Blade
- A61B2018/1415—Blade multiple blades
Abstract
The invention relates to the technical field of endoscopic knives, in particular to a high-frequency electric knife with double knife heads for endoscopes, which comprises the following components: the first handle and the second handle are arranged in a sliding manner, and the second handle moves back and forth along the axial direction of the first handle under the action of external force; the first tool bit and the second tool bit which are sleeved with each other are all installed in the inner cavity of the outer tube in a telescopic way, and the first tool bit arranged inside is connected with a power connector on the second handle through a conductive piece and stretches out of or withdraws into the cavity under the drive of the second handle; and the damping structure is connected between the second tool bit and the inner wall of the cavity and is used for applying a first acting force which prevents the second tool bit from synchronously moving along with the first tool bit when the second handle moves or a second acting force which allows the second tool bit to extend or retract into the cavity under the action of the second handle when the first tool bit moves to a preset position. The invention provides a high-frequency electric knife for an endoscope, which has two knife heads, can be operated continuously and are not mutually influenced.
Description
Technical Field
The invention relates to the technical field of endoscopic knives, in particular to a high-frequency electric knife with double knife heads for endoscopes.
Background
In recent years, with the development of endoscopic technology, endoscopic tissue biopsy, endoscopic mucosal resection and endoscopic mucosal dissection have been widely used, and have a key role in the discovery, diagnosis and treatment of digestive tract hemorrhage, stenosis, polypectomy and digestive tract early cancer. The cutters commonly used in the market at present are mainly Olympic DUAL cutters, IT cutters, HOOK cutters, TT triangular cutters and the like. The stick electrode of the DUAL knife can be rapidly dotted for marking and cutting mucous membrane; the IT tool bit part is protected by a ceramic insulator, so that unnecessary parts are prevented from being cut when the mucous membrane layer is peeled off, and perforation and bleeding are prevented; the HOOK-shaped HOOK knife L-shaped knife head rotates to a proper angle, so that the edge of a focus can be cut rapidly; the three-petal radial electrode of the TT triangle knife is beneficial to marking points and burning bleeding points for hemostasis.
The doctor involves various steps and instruments in the operation process, such as marking lesions by using an argon knife, injecting physiological saline by using an injection needle to raise the focus part, marking the lesions by using a DUAL knife or a TT triangle knife to burn the spots, cutting the edges along the marks by using a HOOK knife or a DUAL knife, stripping tissues by using an IT knife, burning bleeding spots to stop bleeding, stopping bleeding by using a hemostatic clip, performing electric coagulation hemostasis by using a thermal biopsy forceps, performing ligation cutting by using an electric snare, and the like. However, the frequent replacement of the instruments in the operation causes complicated operation, which not only brings inconvenience to doctors, but also prolongs the operation time and brings pain to patients.
In order to solve the technical problems, chinese patent document CN205758711U discloses an endoscopic polyp traction excision electrotome, which mainly comprises a clamping clamp, an electrotome, a double-cavity tube, a clamping clamp control handle and an electrotome control handle, wherein the clamping clamp is fixed at the end part of the double-cavity tube, the tail end of the clamping clamp is connected with the clamping clamp control handle through a cavity in the double-cavity tube by a traction steel wire, and the clamping clamp control handle controls the opening and closing movement of the clamping clamp; the electric knife is connected with the electrode through the other cavity in the double-cavity tube, and the electrode is arranged on the electric knife control handle. The tail end of the clamping forceps is connected with a clamping forceps control handle by a traction steel wire, and the opening and closing movement of the clamping forceps is controlled by the movement of the clamping forceps control handle; the clamp head of the clamp is opened, the tissue of the polyp is clamped and pulled up, the electric knife is tightened after reaching the polyp to be resected from the lower part of the clamp, and the electric knife is tightened while the electric knife is energized, so that the tissue of the polyp is resected. Although this solution allows simultaneous gripping and cutting of polyps, the electrotome is not suitable for procedures requiring continuous operation of both tool tips.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the endoscope electric knife in the prior art has single function, cannot realize continuous operation of two knife heads and is independent and not mutually influenced, so as to provide the high-frequency electric knife with double knife heads, wherein the two knife heads can continuously operate and are not mutually influenced.
In order to solve the technical problems, the invention provides a high-frequency electrotome with double tool bits for endoscope, comprising:
the first handle and the second handle are arranged in a sliding manner, and the second handle reciprocates along the axial direction of the first handle under the action of external force;
the first tool bit and the second tool bit which are sleeved with each other are all installed in the inner cavity of the outer tube in a telescopic way, and the first tool bit arranged inside is connected with a power connector on the second handle through a conductive piece and stretches out or retracts into the cavity under the drive of the second handle;
And the damping structure is connected between the second tool bit and the inner wall of the cavity and is used for applying a first acting force to the second tool bit when the second handle moves so as to prevent the second tool bit from synchronously moving along with the first tool bit or a second acting force allowing the second tool bit to extend or retract into the cavity under the action of the second handle when the first tool bit moves to a preset position.
The damping structure is a biasing member with a force application direction perpendicular to the expansion and contraction direction of the second tool bit.
The high-frequency electric knife for the endoscope with the double tool bits is characterized in that the biasing piece is a compression spring, and two ends of the compression spring are respectively fixed on a sleeve body arranged in the cavity and the outer wall of the second tool bit through a circular ring.
The high-frequency electric knife for the endoscope is characterized in that the high-frequency electric knife for the endoscope is provided with two knife heads, the extending length of the second knife head along the axial direction is smaller than that of the first knife head along the axial direction, an insulating hemisphere is formed at the top end of the second knife head, and a step hole allowing the first knife head to penetrate out or in is formed on the insulating hemisphere.
The high-frequency electric knife for the endoscope with the double knife heads is characterized in that a stop part for preventing the first knife head from retreating into the insulating hemispheroids is formed at the top end of the first knife head.
The high-frequency electric knife for the endoscope with the double tool bits is characterized in that a fastener is sleeved at the joint of the first tool bit and the conductive piece, and the fastener abuts against the tail end of the second tool bit when the first tool bit moves to a preset position so as to push the second tool bit to extend out of the cavity under the action of the second handle.
The high-frequency electric knife for the endoscope is characterized in that an insulating ring is formed at the position, close to the top ends of the first tool bit and the second tool bit, of the outer tube, and the first tool bit and the second tool bit penetrate out of the insulating ring.
The high-frequency electric knife for the endoscope with the double tool bits is characterized in that the insulating hemispheroids are ceramic balls, and the insulating rings are ceramic rings.
The high-frequency electric knife for the endoscope with the double tool bits is characterized in that a protective tube is arranged at one end, close to the outer tube, of the second handle, and the conducting piece extends to the tail end of the first tool bit after penetrating out of the protective tube.
The high-frequency electric knife for the endoscope with the double tool bits is characterized in that the conductive piece is a steel wire or a power-on wire.
The technical scheme of the invention has the following advantages:
1. When the first tool bit is required to work, only the first acting force is required to be applied to the second handle, so that the first tool bit is pushed to extend out of the cavity of the outer tube, and the first acting force is not enough to push the second tool bit to extend out of the cavity due to the influence of the damping structure, so that the first tool bit works normally; when the second tool bit is required to work, the second handle is continuously applied with force until the second force is enough to overcome the force applied to the second tool bit by the damping structure, the second tool bit is pushed out of the cavity, then the second handle is pulled back by the size of the first force, and the first tool bit is pulled back to the position flush with the second tool bit, so that the normal work of the second tool bit is ensured, and the second tool bit cannot be influenced by the first tool bit.
2. The high-frequency electric knife for the endoscope provided by the invention is provided with the double tool bits, the damping structure is a biasing piece with a force application direction perpendicular to the expansion and contraction direction of the second tool bit, and the biasing piece is a compression spring. The elastic action of the compression spring is utilized to increase the interaction force between the second cutter head and the first cutter head, so that the second cutter head can stretch out and draw back in the cavity of the outer tube according to the action force provided by the second handle, and the independent operation of the first cutter head and the second cutter head is realized.
3. The high-frequency electric knife with the double knife heads for the endoscope, provided by the invention, has the advantages that the insulation hemispheroids at the top ends of the second knife heads can play a role in cooling and heat preservation, can play an insulation protection role, can prevent the second knife heads from cutting unnecessary parts during working, and improves the safety.
4. According to the high-frequency electric knife with the double knife heads for the endoscope, provided by the invention, the fastener at the joint of the first knife head and the conductive piece is arranged, so that when the first knife head moves to a preset position, the fastener can be abutted against the tail end of the second knife head by continuously applying force, and the second knife head is pushed to extend out of the cavity, so that the working states of the first knife head and the second knife head are switched.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a high-frequency electric knife for endoscope with double tool bits provided by the invention;
Fig. 2 is an enlarged partial schematic view of fig. 1.
Reference numerals illustrate:
1-a first handle; 2-a second handle; 3-a first cutter head; 4-a second cutter head; 5-an outer tube; 6-a damping structure; 7-a conductive member; 8-a circular ring; 9-sleeve body; 10-a fastener; 20-protecting tube; 30-spring guide wire; 11-pull ring; 21-a handle cover; 22-power connection; 31-a stop; 41-insulating hemispheres; 51-insulating ring.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
An embodiment of a high-frequency electric knife for endoscope with double knife heads, as shown in fig. 1 and 2, comprises a first handle 1 and a second handle 2 which are arranged in a sliding way, a first knife head 3 and a second knife head 4 which are sleeved with each other, and a damping structure 6 connected between the second knife head 4 and the inner wall of a cavity of an outer tube 5. The first handle 1 is a fixed handle with a pull ring 11 formed at the end part, the second handle 2 is a sliding handle with a pull ring formed at the two ends in the vertical axial direction, and the pull ring is convenient to apply force; the sliding handle is axially provided with a cavity allowing the fixed handle to pass through, and the second handle 2 reciprocates along the axial direction of the first handle 1 under the action of external force; the second handle 2 is kept away from the one end shaping of first handle 1 pull ring 11 and has handle lid 21, and power connection 22 is installed to one side of second handle 2 for external high frequency power supply is supplied power for first tool bit 3. The first tool bit 3 is the DUAL tool bit, and the second tool bit 4 is the IT tool bit, and first tool bit 3 and second tool bit 4 are all telescopically installed in the inside cavity of outer tube 5, and the first tool bit 3 that sets up is connected through a conducting part 7 with power connection 22 on the second handle 2 to stretch out or withdraw under the drive of second handle 2 in the cavity, through high frequency electric cutting excision pathological change after the circular telegram, in this embodiment, conducting part 7 is the steel wire. The damping structure 6 is used for applying a first acting force to the second cutter head 4 to prevent the second cutter head 4 from synchronously moving along with the first cutter head 3 when the second handle 2 moves, and only pushing the first cutter head 3 to extend out of the outer tube 5 to perform lesion excision; when the first cutter head 3 moves to a preset position, the second handle 2 continues to apply force until the magnitude of the second acting force is met by overcoming the acting force of the damping structure 6 on the second cutter head 4, the second cutter head 4 stretches out of the cavity under the action of the second handle 2, then the second handle 2 is reversely driven by the force of the magnitude of the first acting force, the first cutter head 3 is retracted to be flush with the front end of the second cutter head 4, the second cutter head 4 performs tissue stripping and other operations, the reverse force application is continued until the magnitude of the second acting force is met again, and the second cutter head 4 and the first cutter head 3 are retracted to the initial position at the same time.
The damping structure 6 is a biasing member having a biasing direction perpendicular to the extending and contracting direction of the second cutter head 4. Specifically, the biasing member is a compression spring, and two ends of the compression spring are respectively fixed on a sleeve body 9 arranged in the cavity and the outer wall of the second cutter head 4 through a circular ring 8. The sleeve 9 is installed in the space between the second cutter head 4 and the outer tube 5, and the end is formed with an installation space of the compression spring. When both the first cutter head 3 and the second cutter head 4 are retracted, i.e. mostly placed in the cavity of the outer tube 5, the compression spring is in a compressed state, thereby exerting a damping force on the second cutter head 4 pressing towards the first cutter head 3.
The extension length of the second cutter head 4 along the axial direction is smaller than that of the first cutter head 3 along the axial direction, namely, the two ends of the first cutter head 3 extend out of the end parts of the second cutter head 4; an insulating hemisphere 41 is formed at the top end of the second cutter head 4, a step hole allowing the first cutter head 3 to penetrate out or penetrate in is formed on the insulating hemisphere 41, and the insulating hemisphere 41 is a ceramic ball. The top end of the first tool bit 3 is formed with a stop part 31 for preventing the first tool bit 3 from retreating into the insulating hemisphere 41, the stop part 31 and the first tool bit 3 are integrally formed, and the diameter is larger than the inner diameters of the step hole of the insulating hemisphere 41 and the through hole of the second tool bit 4, so that the first tool bit 3 is prevented from being separated from the second tool bit 4 when retreating.
A fastener 10 is sleeved at the joint of the first tool bit 3 and the conductive piece 7, and the fastener 10 is used for firmly installing the first tool bit 3 and the conductive piece 7; the fastener 10 abuts against the end of the second tool bit 4 when the first tool bit 3 is moved to a predetermined position to push the second tool bit 4 out of the cavity under the action of the second handle 2.
An insulating ring 51 is formed at the end of the outer tube 5, which is close to the ends of the first cutter head 3 and the second cutter head 4, the insulating ring 51 is embedded in the outer tube 5, the first cutter head 3 and the second cutter head 4 penetrate out of the insulating ring 51, and the insulating ring 51 effectively prevents the first cutter head 3 and the second cutter head 4 from completely retreating to the inside of the outer tube 5 when retreating. Specifically, the insulating ring 51 is a ceramic ring.
The electric tool also comprises a spring guide wire 30, the spring guide wire 30 is arranged at one end of the sleeve body 9 opposite to the compression spring, the outer tube 5 is wrapped on the spring guide wire 30, and the electric conduction piece 7 extends to the tail end of the first tool bit 3 after penetrating out of the spring guide wire 30. The second handle 2 is provided with a protective tube 20 at one end near the outer tube 5, and the protective tube 20 may be an insulating tube with a certain strength.
The method for using the high-frequency electric knife with double tool bits for the endoscope of the embodiment is as follows: before use, the stop part 31 of the first tool bit 3 is aligned with the front end surface of the second tool bit 4 in the stepped hole of the ceramic ball and is arranged next to the ceramic ring in the outer tube 5; when the first cutter head 3 is required to be used, the second handle 2 is only required to be driven to slide along the axial forward side of the first handle 1, and the driving force is transmitted to the tail end of the first cutter head 3 through the steel wire, so that the first cutter head 3 is driven to extend out of the cavity of the outer tube 5, and at the moment, the second cutter head 4 cannot slide out of the cavity due to the damping action of the compression spring on the second cutter head 4, so that the first cutter head 3 can work normally; when the second cutter head 4 is needed to be used, the second handle 2 is continuously used for exerting force until the force is enough to overcome the damping action of the compression spring on the second cutter head 4, the second handle 2 acts on the tail end of the second cutter head 4 through the fastener 10 connected with the steel wire, so that the second cutter head 4 extends out of the cavity, then the second handle 2 is pulled backwards, the first cutter head 3 is driven to move backwards until the stop part 31 of the first cutter head 3 is flush with the front end of the second cutter head 4, and the second cutter head 4 can work normally; finally, the second handle 2 is continuously driven backwards, the first cutter head 3 and the second cutter head 4 synchronously move until the first cutter head and the second cutter head are in abutting contact with the insulating ring 51 of the outer tube 5, and one operation is completed.
As an alternative embodiment, the damping structure 6 comprises protrusions formed on the outer wall of the second cutter head 4 and recesses formed at corresponding positions on the inner wall of the outer tube 5, respectively, the protrusions having guiding slopes for guiding the movement direction of the second cutter head 4 relative to the first cutter head 3.
As an alternative embodiment, the conductive element 7 is an energized wire.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. A high-frequency electric knife for endoscope with double knife heads, characterized by comprising:
The device comprises a first handle (1) and a second handle (2) which are arranged in a sliding manner, wherein the second handle (2) reciprocates along the axial direction of the first handle (1) under the action of external force;
The first tool bit (3) and the second tool bit (4) which are sleeved with each other are all installed in the inner cavity of the outer tube (5) in a telescopic way, and the first tool bit (3) arranged inside is connected with a power connector (22) on the second handle (2) through a conductive piece (7) and stretches out or retracts into the cavity under the drive of the second handle (2); a stop part (31) for preventing the first tool bit (3) from retreating into the second tool bit (4) is formed at the top end of the first tool bit (3);
Damping structure (6) connected between the second cutter head (4) and the inner wall of the cavity, for applying a first acting force to the second cutter head (4) to prevent the second cutter head (4) from synchronously moving along with the first cutter head (3) when the second handle (2) moves; a fastener (10) is sleeved at the joint of the first tool bit (3) and the conductive piece (7), and the fastener (10) is propped against the tail end of the second tool bit (4) when the first tool bit (3) moves to a preset position so as to push the second tool bit (4) to extend out of the cavity under the action of the second handle (2);
The damping structure comprises a protrusion formed on the outer wall of the second cutter head (4) and a groove formed at the corresponding position of the inner wall of the outer tube (5).
2. The high-frequency electric knife for endoscope with double-blade according to claim 1, characterized in that the damping structure (6) is a biasing member having a force application direction perpendicular to the expansion and contraction direction of the second blade (4).
3. The high-frequency electric knife for endoscope with double knife heads according to claim 2, characterized in that the biasing member is a compression spring, both ends of which are fixed on a sleeve body (9) arranged in the cavity and the outer wall of the second knife head (4) respectively through a circular ring (8).
4. A high frequency electric knife for endoscope with double knife head according to any of claims 1-3, characterized in that the extension of the second knife head (4) along the axial direction is smaller than the extension of the first knife head (3), an insulating hemisphere (41) is formed at the top end of the second knife head (4), and a step hole allowing the first knife head (3) to pass through or penetrate is formed on the insulating hemisphere (41).
5. The high-frequency electric knife for endoscope with double knife heads according to claim 4, characterized in that an insulating ring (51) is formed at the port of the outer tube (5) near the top ends of the first knife head (3) and the second knife head (4), and the first knife head (3) and the second knife head (4) penetrate out of the insulating ring (51).
6. The high-frequency electric knife for endoscope with double blade according to claim 5, characterized in that the insulating hemisphere (41) is a ceramic sphere and the insulating ring (51) is a ceramic ring.
7. The high-frequency electric knife for endoscope with double knife heads according to claim 4, characterized in that one end of the second handle (2) close to the outer tube (5) is provided with a protective tube (20), and the conductive piece (7) extends to the tail end of the first knife head (3) after penetrating out of the protective tube (20).
8. The high-frequency electric knife for endoscope with double-knife head according to claim 1, characterized in that the conductive member (7) is a steel wire or an energizing wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724543.6A CN108784828B (en) | 2018-07-04 | 2018-07-04 | High-frequency electrotome with double tool bits for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724543.6A CN108784828B (en) | 2018-07-04 | 2018-07-04 | High-frequency electrotome with double tool bits for endoscope |
Publications (2)
| Publication Number | Publication Date |
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| CN108784828A CN108784828A (en) | 2018-11-13 |
| CN108784828B true CN108784828B (en) | 2024-04-19 |
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| CN201810724543.6A Active CN108784828B (en) | 2018-07-04 | 2018-07-04 | High-frequency electrotome with double tool bits for endoscope |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110236669B (en) * | 2019-05-28 | 2021-01-01 | 安瑞医疗器械(杭州)有限公司 | Linkage structure of endoscope apparatus |
| CN111671513A (en) * | 2020-07-08 | 2020-09-18 | 安瑞医疗器械(杭州)有限公司 | High-frequency electric appliance matched with endoscope |
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