CN110537977B - Bendable bipolar radio frequency tool bit - Google Patents
Bendable bipolar radio frequency tool bit Download PDFInfo
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- CN110537977B CN110537977B CN201910903971.XA CN201910903971A CN110537977B CN 110537977 B CN110537977 B CN 110537977B CN 201910903971 A CN201910903971 A CN 201910903971A CN 110537977 B CN110537977 B CN 110537977B
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- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 239000000919 ceramic Substances 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims 7
- 241001330002 Bambuseae Species 0.000 claims 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 7
- 239000011425 bamboo Substances 0.000 claims 7
- 230000035515 penetration Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 9
- 210000001519 tissue Anatomy 0.000 description 5
- 238000002674 endoscopic surgery Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
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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
- 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
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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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
- A61B2018/00053—Mechanical features of the instrument of device
-
- 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
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/126—Generators therefor characterised by the output polarity bipolar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a bendable bipolar radio frequency tool bit, which comprises a plug, a long cylinder, a left clamping plate and a right clamping plate which are arranged in the hollow of the long cylinder and connected with the plug, a small nut arranged at the rear end of the left clamping plate, a cylindrical cap sleeved at the rear end of the long cylinder, a short cylinder sleeved at the front end of the long cylinder and hollow, a convex conical cap sleeved at the front end of the short cylinder by adopting threads, a Lu Erkou arranged at the front end of the convex conical cap, a hollow sheath tube with the rear end penetrating Lu Erkou and the convex conical cap in sequence, a tool bit arranged at the front end of the front double-cavity tube, an angle adjusting mechanism arranged in the hollow of the sheath tube, two hard guide wires with the rear end connected with the tool bit respectively, a spring arranged in the short cylinder and arranged between the angle adjusting mechanism and the front end of the long cylinder, a male head fixed at the rear end of the outer edge of the short cylinder, and a female head fixed at the outer edge of the long cylinder.
Description
Technical Field
The invention relates to the field of endoscopic surgery, in particular to a bendable bipolar radio frequency cutter head.
Background
The radiofrequency tool bit is used in endoscopic surgery and is matched with a radiofrequency surgical system; surgical electrodes for cutting, ablating, coagulating and the like soft tissues between cones during surgery. The principle of plasma technology is to apply energy to sodium ions, rather than to molecules of tissue, and thus has the property of being minimally invasive at low temperatures. The principle is that sodium ions in electrolyte (physiological saline) are excited by a radio frequency electric field, an ionized plasma layer is generated between the bipolar electrodes of the operation electrode, and then the highly excited plasma is used for breaking molecular bonds of tissues, and the action range of the accelerated ions in the plasma thin layer is extremely short and is only 100 micrometers, so that the ablation effect is precisely controlled on the surface layer of the tissues contacted with the radio frequency electrode, the deep tissues are not influenced, and the surface of the wound is less damaged. In addition, because the electric field only exists between the dipoles of the electrodes and does not penetrate into the patient, the energy can be accurately controlled, the effect of decomposing tissues at low temperature (40-70 ℃) is achieved, and the thermal damage is minimized. The technique can also shrink collagen, thereby achieving the functions of stopping bleeding and closing blood vessels during ablation.
At present, the existing bipolar radio frequency tool bit on the market cannot be bent in the clinical use process, is inconvenient to operate and prolongs the operation period; in addition, the existing bipolar radiofrequency tool bit has no locking device, a doctor needs to press the rear of the handle to work, misoperation is easy to occur, and hand fatigue is easy to occur due to the fact that the operation times are more;
therefore, there is an urgent need to provide a flexible bipolar radiofrequency tool bit with simple structure, simple operation, adjustable angle and self-locking.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a bendable bipolar radio frequency tool bit, which adopts the following technical scheme:
the bendable bipolar radiofrequency tool bit comprises a plug matched with a radiofrequency operation system, a hollow long cylinder, a left clamping plate and a right clamping plate which are arranged in the hollow of the long cylinder, connected with the plug by adopting a cable and matched with each other, a small nut arranged in the hollow of the long cylinder and used for fixing the cable on the left clamping plate, a cylindrical cap sleeved at the rear end of the long cylinder and wrapped at the outer edge of the small nut, a short hollow cylinder sleeved at the front end of the long cylinder, a convex conical cap sleeved at the front end of the short cylinder by adopting threads, a Lu Erkou arranged at the front end of the convex conical cap, the rear end sequentially penetrates Lu Erkou and the convex conical cap and is a hollow outer sheath tube, a front double-cavity tube arranged in the hollow of the outer sheath tube, a cutter head arranged at the front end of the front double-cavity tube, an angle adjusting mechanism arranged in the hollow of the short tube, two hard guide wires with the rear end connected with the angle adjusting mechanism and the front end respectively connected with the cutter head, a spring arranged in the short tube and arranged between the angle adjusting mechanism and the front end of the long tube, a male head fixed at the rear end of the outer edge of the short tube, and a female head fixed at the outer edge of the long tube and used for locking and matching with the male head and clamping a left clamping plate and a right clamping plate so as to realize position locking of the angle adjusting mechanism; the hollow of the outer sheath is in communication with Lu Erkou.
Further, the bendable bipolar radio frequency cutter head also comprises a handle which is respectively connected with the outer edge of the long cylinder and the outer edge of the short cylinder in a shaft way.
Preferably, the section of the front end of the long cylinder is in an I shape, and a limit column matched with the I shape is arranged on the inner wall of the short cylinder.
Further, the tool bit consists of a turning joint, a ceramic tube and an electrode tip which are sequentially arranged from back to front;
the turning joint is provided with a plurality of joints, and the two hard guide wires respectively penetrate through the turning joint and the ceramic tube in sequence and are connected with the electrode head.
Further, the angle adjusting mechanism comprises two pulley fixing sheets which are fixed in the hollow of the short cylinder and are used for sliding and supporting two hard guide wires, a driving block for respectively clamping and fixing the two hard guide wires up and down, a bracelet which is fixedly connected with the center of the driving block by adopting a shaft and stretches and swings along the plane of the two hard guide wires, a soft guide wire which is arranged at the rear end of the driving block and is correspondingly connected with the two hard guide wires one by one, and a rear double-cavity tube which is sleeved at the outer edge of the soft guide wire and is arranged in the long cylinder; the rear double-cavity tube is arranged between the left clamping plate and the right clamping plate; a plurality of rolling shafts are arranged between the two pulley fixing sheets.
Preferably, a conical hole is formed in the protruding conical cap, and a cross clip sleeved on the outer edge of the outer sheath tube is arranged in the conical hole.
Preferably, a small gasket is arranged between the front end of the short cylinder and the cross clip; a dumbbell groove is arranged in the Lu Erkou, and at least one large gasket is respectively arranged at two ends of the dumbbell groove and placed in the luer.
Preferably, any one of the direction-changing joints comprises a cylindrical table, a hemispherical boss arranged at the center of the front end of the cylindrical table, an arc-shaped groove arranged at the rear end of the cylindrical table and matched with the hemispherical boss in a sliding contact manner, and a hard guide wire through hole which penetrates through the cylindrical table, is arranged at two sides of the hemispherical boss and is used for allowing a hard guide wire to penetrate through.
Further, at least two stepped slots are uniformly arranged in the female head in a ring shape on the opposite surface of the male head, and locking pieces matched with the stepped slots in a threaded locking manner are arranged on the male head.
A radio frequency surgical system comprising a flexible bipolar radio frequency blade.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention skillfully sets the tool bit with the turning joint and the angle adjusting mechanism for adjusting the angle of the tool bit, and the tool bit is connected with the angle adjusting mechanism by adopting a hard guide wire, thereby not only providing support for the turning joint, but also realizing the bending adjustment of the tool bit under the push-pull action of the bracelet;
(2) The invention skillfully sets the female head, the male head, the left clamping plate, the right clamping plate and the long barrel, and if and only if the bending angle of the cutter head is adjusted and determined, the female head is pushed close to the male head and drives the long barrel to move forwards, so that the rear double-cavity tube is arranged between the left clamping plate and the right clamping plate; the female head is rotated and is in threaded connection with the male head, and meanwhile, the left clamping plate and the right clamping plate squeeze the rear double-cavity tube to lock the position of the cutter head;
(3) The flexible bipolar radiofrequency tool bit is skillfully provided with the handle, so that the flexible bipolar radiofrequency tool bit is convenient to take, and clamping operation can be provided for the female and male heads to be close to each other, and two purposes are realized;
(4) The invention skillfully arranges the spring in the short cylinder, and automatically returns after the female and male heads are unlocked; in addition, the section of the long cylinder is I-shaped, and the limiting column is arranged in the short cylinder, so that the unlocking and resetting limiting effect of the female and male heads can be ensured;
(5) The driving block is arranged in the short cylinder, and the hard guide wire is driven to act by pulling the hand ring back and forth, so that the angle bending of the cutter head is realized, and the operation is simpler and more labor-saving;
(6) The luer port is skillfully arranged between the outer sheath tube and the convex conical cap and is used for draining water in the operation process so as to relieve internal pressure;
(7) According to the invention, the dumbbell groove is arranged in Lu Erkou, and the large gaskets are arranged at the two ends of the dumbbell groove, so that the Lu Erkou and the convex conical cap are reliably sealed;
in conclusion, the invention has the advantages of simple structure, simple and convenient operation, reliable locking, in-place sealing and the like, and has high practical value and popularization value in the field of endoscopic surgery.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope of protection, and other related drawings may be obtained according to these drawings without the need of inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an explosive structure according to the present invention.
Fig. 2 is a partial cross-sectional view of the retracted state of the invention.
Fig. 3 is a partial cross-sectional view of the extended state of the present invention.
Fig. 4 is a schematic structural view of the angle adjusting mechanism of the present invention.
Fig. 5 is a schematic view (a) of a tool bit adjustment according to the present invention.
Fig. 6 is a schematic diagram (ii) of the tool bit adjustment according to the present invention.
Fig. 7 is a schematic view of the structure of the retracted state of the present invention.
Fig. 8 is a schematic structural view of the snap-in state of the present invention.
Fig. 9 is a partial schematic view of fig. 8.
Fig. 10 is a schematic structural view of the female and male fastening states of the present invention.
Fig. 11 is a schematic structural view of the female and male connectors of the present invention in an opened state.
Fig. 12 is a schematic view of the structure of the knuckle of the present invention.
In the above figures, the reference numerals correspond to the component names as follows:
1-outer sheath, 2-front double-lumen tube, 3-protruding conical cap, 4-short tube, 5-female head, 6-male head, 7-spring, 8-long tube, 10-small nut, 11-cylindrical cap, 12-plug, 13-handle, 14-angle adjustment mechanism, 15-tool bit, 16-limit post, 17-Lu Erkou, 18-large washer, 19-dumbbell slot, 20-cross clip, 21-small washer, 22-hard guide wire, 51-stepped slot, 61-locking piece, 91-left clamp plate, 92-right clamp plate, 141-pulley fixing plate, 142-driving block, 143-soft guide wire, 144-bracelet, 145-rear double-lumen tube, 151-diversion node, 152-electrode head, 153-ceramic tube, 1511-cylindrical table, 1512-hemispherical boss, 1513-arc slot, 1514-hard guide wire through hole.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Examples
As shown in fig. 1 to 12, the present embodiment provides a radio frequency surgical system comprising a bendable bipolar radio frequency blade; in the present embodiment, the terms of azimuth such as "front end", "rear end", "outer edge", "inner wall" and the like are described based on the drawings.
Specifically, the bendable bipolar radiofrequency tool bit in the embodiment comprises a plug 12 matched with a radiofrequency operation system, and is characterized by further comprising a hollow long barrel 8, a left clamping plate 91 and a right clamping plate 92 which are arranged in the hollow of the long barrel 8, connected with the plug 12 by adopting a cable and matched with each other, a small screw cap 10 arranged at the rear end of the left clamping plate 91 and arranged in the hollow of the long barrel 8 and used for fixing the cable on the left clamping plate 91, a cylindrical cap 11 sleeved at the rear end of the long barrel 8 and wrapped on the outer edge of the small screw cap 10, a short barrel 4 sleeved at the front end of the long barrel 8 and hollow, a convex conical cap 3 sleeved at the front end of the short barrel 4 by adopting threads, a Lu Erkou 17 arranged at the front end of the convex conical cap 3, the rear end sequentially penetrates Lu Erkou and the protruding conical cap 3 to form a hollow outer sheath tube 1, a front double-cavity tube 2 arranged in the hollow of the outer sheath tube 1, a cutter head 15 arranged at the front end of the front double-cavity tube 2, an angle adjusting mechanism 14 arranged in the hollow of the short tube 4, two hard guide wires 22 with rear ends connected with the angle adjusting mechanism 14 and front ends connected with the cutter head 15 respectively, a spring 7 arranged in the short tube 4 and arranged between the angle adjusting mechanism 14 and the front end of the long tube 8, a male head 6 fixed at the rear end of the outer edge of the short tube 4, a female head 5 fixed at the outer edge of the long tube 8 and used for locking and matching with the male head 6 and clamping a left clamping plate 91 and a right clamping plate 92 to realize position locking of the angle adjusting mechanism 14, and a handle 13 respectively connected with the outer edge of the long tube 8 and the outer edge of the short tube 4 in a shaft mode. Wherein the hollow of the outer sheath tube 1 is communicated with Lu Erkou 17; in this embodiment, the front end of the long tube 8 has an i-shaped cross section, and a limit post 16 matching the i-shaped cross section is provided on the inner wall of the short tube 4.
In order to ensure that the angle of the cutter head 15 can be bent, the cutter head 15 consists of a turning joint 151, a ceramic tube 153 and an electrode tip 152 which are sequentially arranged from back to front; the steering joint 151 is provided with 4-8 joints, and the two hard guide wires 22 respectively penetrate through the steering joint 151 and the ceramic tube 153 in sequence and are connected with the electrode tip 152. In addition, any one of the knuckle 151 includes a cylindrical table 1511, a hemispherical boss 1512 provided at a center of a front end of the cylindrical table 1511, an arc-shaped groove 1513 provided at a rear end of the cylindrical table 1511 and in sliding contact with the hemispherical boss 1512, and a hard wire through hole 1514 provided through the cylindrical table 1511 and provided at both sides of the hemispherical boss 1512 for the hard wire 22 to pass through.
The angle adjusting mechanism 14 of this embodiment includes two pulley fixing pieces 141 fixed in the hollow of the short cylinder 4 and used for sliding and supporting two hard guide wires 22, a driving block 142 for respectively clamping and fixing the two hard guide wires 22 up and down, a hand ring 144 with a shaft penetrating the short cylinder 4 and fixedly connected with the center of the driving block 142 and stretching and swinging along the plane of the two hard guide wires 22, a soft guide wire 143 arranged at the rear end of the driving block 142 and correspondingly connected with the two hard guide wires 22 one by one, and a rear double-cavity tube 145 sleeved at the outer edge of the soft guide wire 143 and arranged in the long cylinder 8; the rear double lumen tube 145 is disposed between the left and right clamping plates 91, 92; a plurality of rollers are disposed between the two pulley fixing pieces 141. In this embodiment, the hand ring 144 is pulled backward to rotate the driving block 142 counterclockwise around the axis as the center of the circle, the upper hard wire 22 moves forward, and the lower hard wire 22 moves backward to achieve downward bending of the cutter head 15, and the applicant repeatedly tests that the bending angle is 140 ° in the case of 5 knuckle. The upward bending of the cutter head 15 is only required by pushing the hand ring 144 forward, and will not be described here.
In this embodiment, a conical hole is formed in the protruding conical cap 3, and a cross clip 20 sleeved on the outer edge of the outer sheath tube 1 is arranged in the conical hole. In addition, a small washer 21 is arranged between the front end of the short cylinder 4 and the cross clip 20; a dumbbell groove 19 is arranged in the Lu Erkou, and at least one large gasket 18 is respectively arranged at two ends of the dumbbell groove 19 and placed in the Lu Erkou. Through the scheme, the embodiment can ensure reliable sealing while discharging water in operation.
In this embodiment, in order to ensure that the locking of the tool bit 15 after the angular bending is reliable, at least two stepped slots 51 are uniformly arranged in the female head 5 in a ring shape on the opposite surface to the male head 6, and locking pieces 61 which are in threaded locking matching with the stepped slots 51 are arranged on the male head 6. If and only if the angle of the cutter head 15 is bent and determined, the handle 13 is extruded to enable the female head 5 to be close to the male head 6, the rear double-cavity tube is arranged between the left clamping plate and the right clamping plate, the female head 5 is rotated and drives the long barrel 8, and the outer edge of the rear double-cavity tube is extruded by the left clamping plate and the right clamping plate; meanwhile, the stepped slot hole of the female head 5 is locked with the locking piece of the male head 6, so that the bending angle locking of the cutter head 15 is realized.
In summary, the invention fills the technical blank of the radio frequency knife head without angle bending in the radio frequency operation system, and compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and has high practical value and popularization value in the field of endoscopic surgery.
The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention, but all changes made by adopting the design principle of the present invention and performing non-creative work on the basis thereof shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a flexible bipolar radiofrequency tool bit, includes and is in with RF operation system complex plug (12), its characterized in that still includes hollow long section of thick bamboo (8), sets up in the cavity of long section of thick bamboo (8), adopt cable and plug (12) to be connected, left splint (91) and right splint (92) that match each other, set up in the rear end of left splint (91), just arrange in the cavity of long section of thick bamboo (8), be used for with the cable is fixed little nut (10) on left splint (91), the cover is established in the rear end of long section of thick bamboo (8), and wraps up cylinder cap (11) at the outward flange of little nut (10), the cover is established in the front end of long section of thick bamboo (8), and is hollow short section of thick bamboo (4), adopts the screw thread cover to establish in protruding conical cap (3) of the front end of short section of thick bamboo (4), set up in Lu Erkou (17) of protruding conical cap (3) front end, rear end through-hole (17) and protruding conical cap (3) set up, and be hollow outer sheath tube (1), set up in turn in the front end of two guide wire (14) of two guide wire mechanism (14) and two tip (14) are set up in the front end of two-end of the front end of the guide wire (15) respectively, two-chamber (14) are adjusted mechanism (14), a spring (7) arranged in the short cylinder (4) and arranged between the angle adjusting mechanism (14) and the front end of the long cylinder (8), a male head (6) fixed at the rear end of the outer edge of the short cylinder (4), and a female head (5) fixed at the outer edge of the long cylinder (8) and used for being in locking fit with the male head (6) and clamping a left clamping plate (91) and a right clamping plate (92) so as to realize the position locking of the angle adjusting mechanism (14); the hollow of the outer sheath tube (1) is communicated with Lu Erkou (17).
2. A bendable bipolar radiofrequency blade as claimed in claim 1, further comprising handles (13) respectively journalled with the outer edges of the long (8) and short (4) barrels.
3. A bendable bipolar radio frequency cutter head according to claim 1, characterized in that the front end of the long barrel (8) is of an i-shaped cross section, and a limit post (16) matched with the i-shaped cross section is arranged on the inner wall of the short barrel (4).
4. A bendable bipolar radiofrequency tool bit as claimed in claim 1, wherein the tool bit (15) consists of a knuckle (151), a ceramic tube (153) and an electrode tip (152) arranged in sequence from back to front;
the steering joint (151) is provided with a plurality of joints, and the two hard guide wires (22) respectively penetrate through the steering joint (151) and the ceramic tube (153) in sequence and are connected with the electrode tip (152).
5. The bendable bipolar radio-frequency cutter head according to claim 4, wherein the angle adjusting mechanism (14) comprises two pulley fixing pieces (141) which are fixed in a hollow of a short cylinder (4) and are used for slidably supporting two hard guide wires (22), a driving block (142) which is used for respectively clamping and fixing the two hard guide wires (22) up and down, a hand ring (144) which penetrates through the short cylinder (4) through a shaft and is fixedly connected with the center of the driving block (142) and stretches and swings along the plane of the two hard guide wires (22), a soft guide wire (143) which is arranged at the rear end of the driving block (142) and is correspondingly connected with the two hard guide wires (22), and a rear double-cavity tube (145) which is sleeved on the outer edge of the soft guide wire (143) and is arranged in a long cylinder (8); the rear double-cavity tube (145) is arranged between the left clamping plate (91) and the right clamping plate (92); a plurality of rollers are arranged between the two pulley fixing sheets (141).
6. The bendable bipolar radio frequency tool bit according to claim 1, wherein a conical hole is formed in the protruding conical cap (3), and a cross clip (20) sleeved on the outer edge of the outer sheath tube (1) is arranged in the conical hole.
7. A bendable bipolar radiofrequency tool bit as claimed in claim 6, wherein a small washer (21) is provided between the front end of the short barrel (4) and the cross clip (20); a dumbbell groove (19) is arranged in the Lu Erkou (17), and at least one large gasket (18) is respectively arranged at two ends of the dumbbell groove (19) and placed in the luer (17).
8. The bendable bipolar radio-frequency cutter head according to claim 4, wherein any one of the knuckle (151) comprises a cylindrical land (1511), a hemispherical boss (1512) disposed at a center of a front end of the cylindrical land (1511), an arc-shaped groove (1513) disposed at a rear end of the cylindrical land (1511) and in sliding contact with the hemispherical boss (1512), and a hard wire through hole (1514) disposed through the cylindrical land (1511) and disposed on both sides of the hemispherical boss (1512) for penetration of a hard wire (22).
9. The bendable bipolar radio-frequency tool bit according to claim 1, wherein at least two stepped slots (51) are uniformly formed in the female head (5) in an annular shape on the opposite surface of the male head (6), and locking pieces (61) which are in locking matching with the stepped slots (51) are arranged on the male head (6).
10. A radio frequency surgical system comprising a flexible bipolar radio frequency blade according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903971.XA CN110537977B (en) | 2019-09-24 | 2019-09-24 | Bendable bipolar radio frequency tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910903971.XA CN110537977B (en) | 2019-09-24 | 2019-09-24 | Bendable bipolar radio frequency tool bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110537977A CN110537977A (en) | 2019-12-06 |
| CN110537977B true CN110537977B (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910903971.XA Active CN110537977B (en) | 2019-09-24 | 2019-09-24 | Bendable bipolar radio frequency tool bit |
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| CN110537957A (en) * | 2019-09-24 | 2019-12-06 | 浙江量子医疗器械有限公司 | Controllable grasping forceps for orthopedics department |
| CN114569238A (en) * | 2022-02-28 | 2022-06-03 | 浙江融仕医疗科技有限公司 | Radio frequency ablation electrode with controllable bending |
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| DE4323585A1 (en) * | 1993-07-14 | 1995-01-19 | Delma Elektro Med App | Bipolar high-frequency surgical instrument |
| CN202397597U (en) * | 2011-12-23 | 2012-08-29 | 王广众 | Bendable bipolar electrode |
| TWM466637U (en) * | 2013-07-19 | 2013-12-01 | Jiaxin Biotech Co Ltd | Bipolar ablation device |
| CN104013465B (en) * | 2014-05-28 | 2017-01-11 | 雷东 | Medical bipolar ablation device with angle adjusting function |
| CN206167033U (en) * | 2016-05-17 | 2017-05-17 | 倪家骧 | Intervertebral disk forceps plucks ion electrode equipment such as low temperature after art treatment |
| CN207236844U (en) * | 2016-11-23 | 2018-04-17 | 上海朗迈医疗器械科技有限公司 | A kind of New-type radio-frequency ablation electrode assemblies |
| CN211094661U (en) * | 2019-09-24 | 2020-07-28 | 浙江量子医疗器械有限公司 | Bendable bipolar radio frequency tool bit and radio frequency surgical system |
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