CN107736936A - The bipolar jaw type cutting ablation knife of throat - Google Patents
The bipolar jaw type cutting ablation knife of throat Download PDFInfo
- Publication number
- CN107736936A CN107736936A CN201711213808.8A CN201711213808A CN107736936A CN 107736936 A CN107736936 A CN 107736936A CN 201711213808 A CN201711213808 A CN 201711213808A CN 107736936 A CN107736936 A CN 107736936A
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- Prior art keywords
- electrode
- sleeve pipe
- push rod
- type cutting
- thruster
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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
-
- 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
-
- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
-
- 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
- A61B2018/00321—Head or parts thereof
- A61B2018/00327—Ear, nose or throat
-
- 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
-
- 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
-
- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
Abstract
The invention discloses a kind of bipolar jaw type cutting ablation knife of throat, including sleeve pipe, operation handle, first electrode and second electrode, cannula end is fixed in operation handle, push rod is provided with sleeve pipe, second electrode is fixed on sleeve pipe front end, fixed in insulating sleeve plug-in-sleeve with sleeve pipe, first electrode is connected through bearing pin with insulating sleeve, the end of first electrode is connected through the bar that is connected with push rod front end, push rod end is connected with holding thruster, first electrode and second electrode form retractable jaw when promoting push rod forward, described sleeve pipe inner and outer wall insulate, the be connected outside of bar and push rod insulate, the on-load voltage in first electrode or second electrode, first electrode and second electrode act on pathological tissues, in first electrode, current loop is formed between pathological tissues and second electrode.The present invention has the advantages of performance accuracy is high, use range is wide.
Description
Technical field
The present invention relates to medical instruments field, and in particular to a kind of bipolar jaw type cutting ablation knife of throat.
Background technology
Vocal cords benign proliferative lesion includes polyp of vocal cord, vocal nodule, vocal cyst, vocal cords and appoints gram layer oedema, vocal cords
The knurl type lesion such as papilloma, it is to cause the most common cause of disease of hoarse voice, clinically takes operation to control for knurl type lesion more
Treat.Main flow treatment method is to use supporting laryngoscope surgery excision pathological tissues under general anesthesia at present, is disease the advantages of general anesthesia menisectomy
Human vocal band remains static, easily operated, coordinates microscope and laser, operation is more accurate, and shortcoming is that general anesthesia risk is big, is had
A little risks can be fatal or disabled, also injury of teeth, the tear of pharyngeal mucous membrane, tongue injury, lingual nerve injury, the bad palm of excision extension
Hold equivalent risk.Electronics is used for the less case of lesion（Fiber）Laryngoscope menisectomy extracts lesion group using laryngeal biopsy forceps
To knit, this method can allow patient to pronounce immediate assessment range of operation and effect in operation, can obtain preferable therapeutic effect, its
Advantage is can to complete to perform the operation under local anaesthesia, it is possible to prevente effectively from the risk of above-mentioned general anesthesia operation, when its shortcoming is operation at vocal cords
In active state, so lesion excision is often less accurate, and Accessory injury is easily caused, particularly with larger lesion（Lesion model
Enclose and be more than 3mm）, electronics（Fiber）Laryngoscope menisectomy also has following more formidable difficulty：1st, extent of disease is larger, uses larynx
Portion's biopsy forceps can not take into operation in 2-3 pincers, and visual area bleeding can cause lesion outline unclear, easily accidentally injure normal structure,
2nd, it is unclear to directly result in lens blur for bleeding, can not operate；3rd, bleeding can cause the operating time to extend more, under patient's tolerance
Drop, pharyngeal reflex can be caused or even choked cough, throat is dynamic to spend big, causes operation difficult or even failure.
Collation surgery art utilizes the energy of low-temperature plasma radio frequency, with relatively low temperature（40-70 ℃）Come carry out
The ablation excision of tissue, it is small to tissue damage.Compared to laryngeal biopsy forceps, the low-temperature plasma cutting ablation knife of throat is applied to
Operation on larynx under local anaesthesia, ablation cutting and hemostatic function can be completed while pathological tissues are accurately positioned, keeps good
Surgical field of view, can meet the needs of larger extent of disease excision, its tissue damage is small but excellent really, and bleeding is few, operation safety
It is high.The low-temperature plasma cutting ablation knife of the throat clinically applied at present is bar-shaped head, does not allow to be fixed easily in active organization,
Cause damage range big after slippage, and influence operation precision.In addition, for big lesion, the low-temperature plasma of bar-shaped head is cut
Ablation knife can not meet needs of performing the operation.
The content of the invention
The purpose of the present invention is to overcome above-mentioned technological deficiency, there is provided a kind of bipolar jaw type cutting ablation knife of throat, for sound
Treatment with benign proliferative lesion, local anaesthesia can be used, in electronics（Fiber）By method of clamping to lesion group under laryngoscope
Knit and carry out cutting ablation, controllability is good, and excision extension control is accurate, can stop blooding very well in operation.
The technical solution adopted by the present invention is：Throat's bipolar jaw type cutting ablation knife, mainly including sleeve pipe, operation handle,
First electrode and second electrode, cannula end are fixed in operation handle, and push rod is provided with sleeve pipe, and second electrode is fixed on set
Pipe front end, fixed with sleeve pipe in insulating sleeve plug-in-sleeve, first electrode is connected through bearing pin with insulating sleeve, the end of first electrode
End be connected through the bar that is connected with push rod front end, push rod end is connected with holding thruster, when holding thruster push-and-pull push rod first electrode with
Second electrode forms retractable jaw, and described sleeve pipe inner and outer wall insulate, and the outside of be connected bar and push rod is exhausted
Edge, first electrode and second electrode are connected through wire with joint respectively, and joint is connected with radiofrequency ablation system,
On-load voltage in first electrode or second electrode, first electrode and second electrode act on pathological tissues, in first electrode, lesion
Current loop is formed between tissue and second electrode.
Further, the bar that is connected is made up of first connecting rod and second connecting rod, first connecting rod front end and first electrode
Fixed, the front end of rear end and second connecting rod is hinged, and rear end and the push rod of second connecting rod are hinged.More preferably, in first connecting rod and
One electrode is integrally formed, and the insulating sleeve and sleeve upper end of first electrode opening direction are provided with opening, in second electrode side
Connecting rod outlet is provided with insulating sleeve and sleeve pipe, first electrode is opened greater angle.
Further, thruster is held to be slidably matched in operation handle and with operation handle.
Further, the operation handle front portion is provided with cavity along central shaft, and rear end is provided with grip ring, between cavity and grip ring
Stage casing or so be formed through groove, form guide rod above and below groove, hold the stage casing that thruster is sleeved on operation handle, hold
On thruster limited block insertion groove in and with guide rod coordinate to hold thruster movement rise limit guide effect, push rod end from
Sleeve pipe enters cavity and fixed with holding thruster.
Further, the thruster of holding has front limit portion and rear limiting section, is formed between front limit portion and rear limiting section
Groove.
Further, the wire being connected with second electrode is set in set tube wall, in operation handle front end after sleeve pipe extraction
It is connected with joint.
Further, the material selection conducting metal or graphene of the first electrode and second electrode.More preferably, it is described to lead
Electric metal is stainless steel, titanium alloy, tungsten alloy, partinium, nickel alloy or Nitinol.
Bipolar jaw type cutting ablation its first electrode of knife of throat of the present invention is retractable under push rod effect, and second electrode is solid
It is fixed, retractable jaw, convenient accurate clamping pathological tissues, in first electrode after clamping are made up of first electrode and second electrode
Or on-load voltage in second electrode, first electrode and second electrode act on pathological tissues, in first electrode, pathological tissues and
When current loop is formed between two electrodes, target lesion tissue can be accurately acted on, normal structure will not be accidentally injured, reaches good
Ablation excision effect；The present invention can carry out ablation process by way of repeatedly clamping, repeatedly melt to big pathological tissues, enter
One step expands use range of the Collation surgery art in operation on larynx, makes the hand of more vocal cords benign proliferative lesions
Art can be completed under local anesthesia, eliminate general anesthesia risk, improve the security of operation, reduce treatment cost.
Brief description of the drawings
Fig. 1 schematic structural views of the invention.
Fig. 2 is the partial enlarged drawing in Fig. 1.
Fig. 3 is the structural representation that jaw is opened.
Fig. 4 is A-A profiles in Fig. 2.
Fig. 5 is B-B profiles in Fig. 2.
Fig. 6 be in Fig. 1 C to sectional view.
Fig. 7 be in Fig. 1 D to sectional view.
Fig. 8 is standoff features schematic diagram.
Fig. 9 is partial schematic diagram at jaw.
Description of reference numerals：1 first electrode, 2 second electrodes, 3 are connected bar, 31 first connecting rods, 32 second connecting rods, and 4
Sleeve pipe, 5 insulating sleeves, 6 push rods, 7 hold thruster, 71 front limit portions, 72 grooves, and limiting section after 73,74 limited blocks, 75 tube chambers, 8 hold
Ring, 9 operation handles, 91 guide rods, 92 grooves, 93 cavitys, 10 grip ring inner chambers, 11,17 wires, 12 joints, 13,14,15 pins
Axle, the outlet of 16 connecting rods, 18 openings, 19 breach.
Embodiment
The bipolar jaw type of throat of the present invention cuts ablation knife, mainly includes sleeve pipe 4, operation handle 9, holds thruster 7, linkage company
Extension bar 3, first electrode 1 and second electrode 2, the end of sleeve pipe 4 are fixed in operation handle 9, are provided with push rod 6 in sleeve pipe 4, and second
Electrode 2 is fixed on the front end of sleeve pipe 4, is fixed in the plug-in-sleeve 4 of insulating sleeve 5 with sleeve pipe 4, and first electrode 1 is through bearing pin 13 and insulation
Sleeve 5 is connected, and the end of first electrode 1 is connected through the bar 3 that is connected with the front end of push rod 6, is held thruster 7 and is arranged on operation handle 9
Above and with operation handle 9 it is slidably matched, first electrode 1 and second electrode 2 form retractable pincers when holding 7 push-and-pull push rod 6 of thruster
Mouthful, the inner and outer wall of described sleeve pipe 4 insulated, and the outside of be connected bar 3 and push rod 6 is insulated, the electricity of first electrode 1 and second
Pole 2 is connected through wire with joint 12 respectively, and joint 12 is connected with radiofrequency ablation system, respectively in first electrode 1
With on-load voltage in first electrode 1, first electrode 1 and second electrode 2 act on pathological tissues, in first electrode 1, pathological tissues
Current loop is formed between second electrode 2.
The bar 3 that is connected in the present embodiment is made up of first connecting rod 31 and second connecting rod 32, the front end of first connecting rod 31 and the
One electrode 1 connects, or is directly integrally formed first connecting rod 31 and first electrode 1, first electrode 1 with second electrode 2
Relative to form the partially electronically conductive outer of jaw, other parts do insulation processing, and the rear end of first connecting rod 31 passes through bearing pin 14 and second and connected
The front end of bar 32 is hinged, and the rear end of second connecting rod 32 is be hinged by bearing pin 15 and push rod 6.In the exhausted of the opening direction of first electrode 1
Edge sleeve 5 and the upper end of sleeve pipe 4 are provided with opening 18, and connecting rod is provided with the insulating sleeve 5 and sleeve pipe 4 of the side of second electrode 2
Outlet 16, enables first electrode 1 to open greater angle.
The front central axle of operation handle 9 is provided with cavity 93 in the present embodiment, and rear end is provided with grip ring 8, and finger is inserted in grip ring
Facilitate hand-held in chamber 10, stage casing between cavity 93 and grip ring 8 or so is formed through groove 92, and the top of groove 92 is with
Square to hold the stage casing that thruster 7 is sleeved on operation handle 9 into guide rod 91, the limited block 74 held on thruster 7 is inserted in groove 92 simultaneously
Coordinate to act the movement for holding thruster 7 with guide rod 91 and limit guide effect, the end of push rod 6 enters cavity 93 and with holding from sleeve pipe 4
Thruster 7 is fixed.In the present embodiment, the structure of limited block 74 as shown in figure 8, there is fixed lobe 741 in the front end of limited block 74,
The insertion of fixed lobe 741 is held in the wall of 7 tube chamber of thruster 75, limited block 74 is fixed with holding thruster 7, and the middle part of limited block 74 has push rod
Installation portion 742, push rod 6 are fixed on push rod installation portion 742.When holding thruster 7 and being moved forward along guide rod 91, push rod is promoted forward
6, push rod 6 promotes the bar that is connected to move up and stretched out from connecting rod outlet 16, first electrode 1 is outwards beaten at opening 18
Open, the jaw formed using first electrode 1 and second electrode 2 clamps pathological tissues, is moved rearwards when holding thruster 7, push rod 6 is drawn
The dynamic bar 3 that is connected makes first electrode 1 close with grip tissue.
Thruster 7 is held in the present embodiment has front limit portion 71 and rear limiting section 73, in front limit portion 71 and rear limiting section 73
Between form groove 72, two fingers are respectively placed in grooves on two sides 72, and rear limiting section 73 gradually broadens from front to back, front limit
Portion 71 is gradually broadened from rear to preceding, and thruster 7 is held in convenient grasping control.
The wire that is connected in the present embodiment with second electrode 2 is set in the tube wall of sleeve pipe 4, in the front end of operation handle 9 from sleeve pipe 4
It is connected after extraction with joint 12.Push rod 6 had not only controlled the folding of first electrode 1 but also powered for first electrode 1, was pushed away in push rod 6 with holding
The junction of device 7 wire jointing 12, is coated to insulation epitheca outside push rod 6, and insulation epitheca can utilize the system such as polyamide
Into.
As shown in figure 9, the jaw rear end of first electrode 1 and the folding of second electrode 2 in the present embodiment, i.e., close to first electrode
1 with the hinged place of bearing pin 13, the breach 19 of formation triangle, the widest part 0.5mm of breach 19 between first electrode 1 and second electrode 2
Left and right, the breach 19 can prevent first electrode 1 and second electrode 2 from contacting in advance, influence cutting ablation knife after avoiding abnormal
Normal work.In order to ensure the effect of the bipolar jaw type cutting ablation knife of throat, first electrode 1 forms jaw with second electrode 2
Partial height H is 2.5-4mm, and width W is 0.8-1.8mm, length 1-1.8mm.
In use, the jaw closure that first electrode 1 and second electrode 2 form, flexible sleeve pipe 4 pass through electronics（Or fiber）
The biopsy channel of laryngoscope is reached at pathological tissues, opens jaw, and the jaw formed using first electrode 1 and second electrode 2 is clamped
After pathological tissues, radiofrequency ablation system is connected to on-load voltage in first electrode 1 or second electrode 2, the first electricity
Pole 1 and second electrode 2 act on pathological tissues, and current loop is formed between first electrode 1, pathological tissues and second electrode 2,
Pathological tissues progress heat waste is ruined locally producing energy field, it acts on precision height, Small side effects.Disappeared simultaneously using clipping
The mode of melting can preferably solve the poor accuracy and bleeding problems that are operated on movable vocal cords, become electrolaryngoscope menisectomy
It is simple and easy, it will to make the patient of a big chunk Vocal cord lesion from the pain and risk of general anesthesia operation.Further, since vocal cords
Mucous membrane is the critical tissue for producing sound, can reduce the excision of mucous membrane tissue using plasma radiofrequency ablation techniques using the present invention
Scope, the damage of mucous membrane tissue is reduced, and plasma belongs to cryogenic ablation, jaw type cutter head first can precisely catch pathological tissues,
Ablation excision is then carried out, excision extension controllable precise, and can is stopped blooding very well while excision, improves controlling for Vocal cord lesion
More rate.
Claims (10)
1. throat's bipolar jaw type cutting ablation knife, the bipolar jaw type cutting ablation knife of throat, mainly including sleeve pipe, operation handle, the
One electrode and second electrode, it is characterized in that cannula end is fixed in operation handle, push rod is provided with sleeve pipe, second electrode is solid
Sleeve pipe front end is scheduled on, is fixed in insulating sleeve plug-in-sleeve with sleeve pipe, first electrode is connected through bearing pin with insulating sleeve, the first electricity
The end of pole is connected through the bar that is connected with push rod front end, and push rod end is connected with holding thruster, first when holding thruster push-and-pull push rod
Electrode and second electrode form retractable jaw, and described sleeve pipe inner and outer wall insulate, be connected bar and push rod it is outer
Portion is insulated, and first electrode and second electrode are connected through wire with joint respectively, joint and radiofrequency ablation system
Connection, the on-load voltage in first electrode or second electrode, first electrode and second electrode act on pathological tissues, in the first electricity
Current loop is formed between pole, pathological tissues and second electrode.
2. the bipolar jaw type cutting ablation knife of throat according to claim 1, it is characterized in that the bar that is connected is by first
Connecting rod and second connecting rod composition, first connecting rod front end are fixed with first electrode, and the front end of rear end and second connecting rod is hinged, and second connects
The rear end of bar is hinged with push rod.
3. the bipolar jaw type cutting ablation knife of throat according to claim 2, it is characterized in that in first connecting rod and first electrode
It is integrally formed, the insulating sleeve and sleeve upper end of first electrode opening direction are provided with opening, the insulation sleeve in second electrode side
Connecting rod outlet is provided with cylinder and sleeve pipe.
4. the bipolar jaw type cutting ablation knife of throat according to claim 1-3, it is characterized in that holding thruster is arranged on manipulator
It is slidably matched on handle and with operation handle.
5. the bipolar jaw type cutting ablation knife of throat according to any one of claim 4, it is characterized in that before the operation handle
Portion's central shaft is provided with cavity, and rear end is provided with grip ring, the stage casing between cavity and grip ring or so and is formed through groove, groove top
With guide rod formed below, the stage casing that thruster is sleeved on operation handle is held, is held in the limited block insertion groove on thruster and with leading
Coordinate to act the movement for holding thruster to bar and limit guide effect, push rod end enters cavity from sleeve pipe and fixed with holding thruster.
6. the bipolar jaw type cutting ablation knife of throat according to claim any one of 1-3, it is characterized in that described hold thruster tool
There are front limit portion and rear limiting section, groove is formed between front limit portion and rear limiting section.
7. the bipolar jaw type cutting ablation knife of throat according to claim any one of 1-3, it is characterized in that connecting with second electrode
The wire connect is set in set tube wall, is connected in operation handle front end after sleeve pipe extraction with joint.
8. the bipolar jaw type cutting ablation knife of throat according to claim any one of 1-3, it is characterized in that first electrode and the
The jaw rear end of two electrode foldings, close to first electrode with hinge, forming triangle between first electrode and second electrode
The breach of shape.
9. the bipolar jaw type cutting ablation knife of throat according to claim any one of 1-3, it is characterized in that the first electrode
With the material selection conducting metal or graphene of second electrode.
10. the bipolar jaw type cutting ablation knife of throat according to claim 9, it is characterized in that the conducting metal is stainless
Steel, titanium alloy, tungsten alloy, partinium, nickel alloy or Nitinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213808.8A CN107736936A (en) | 2017-11-28 | 2017-11-28 | The bipolar jaw type cutting ablation knife of throat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213808.8A CN107736936A (en) | 2017-11-28 | 2017-11-28 | The bipolar jaw type cutting ablation knife of throat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107736936A true CN107736936A (en) | 2018-02-27 |
Family
ID=61239530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213808.8A Pending CN107736936A (en) | 2017-11-28 | 2017-11-28 | The bipolar jaw type cutting ablation knife of throat |
Country Status (1)
| Country | Link |
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| CN (1) | CN107736936A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152924A (en) * | 1999-09-24 | 2000-11-28 | Parins; David J. | Bipolar biopsy forceps |
| US20080294160A1 (en) * | 2007-05-22 | 2008-11-27 | Garito Jon C | RF endoscopic electrosurgical instrument |
| CN201930070U (en) * | 2011-01-21 | 2011-08-17 | 齐军 | ENT (Ear-nose-throat) low-temperature plasma ablation system |
| CN103536351A (en) * | 2013-10-25 | 2014-01-29 | 方润医疗器械科技（上海）有限公司 | Low-temperature plasma electrode device for otorhinolaryngology department |
| CN203953805U (en) * | 2014-07-12 | 2014-11-26 | 李桃根 | A kind of electric coagulation hemostasis pincers for the treatment of laryngopharyngeal diseases |
| CN204765897U (en) * | 2015-05-08 | 2015-11-18 | 华中科技大学同济医学院附属同济医院 | Electrified quick blood coagulation formula laryngeal scissors sword |
-
2017
- 2017-11-28 CN CN201711213808.8A patent/CN107736936A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6152924A (en) * | 1999-09-24 | 2000-11-28 | Parins; David J. | Bipolar biopsy forceps |
| US20080294160A1 (en) * | 2007-05-22 | 2008-11-27 | Garito Jon C | RF endoscopic electrosurgical instrument |
| CN201930070U (en) * | 2011-01-21 | 2011-08-17 | 齐军 | ENT (Ear-nose-throat) low-temperature plasma ablation system |
| CN103536351A (en) * | 2013-10-25 | 2014-01-29 | 方润医疗器械科技（上海）有限公司 | Low-temperature plasma electrode device for otorhinolaryngology department |
| CN203953805U (en) * | 2014-07-12 | 2014-11-26 | 李桃根 | A kind of electric coagulation hemostasis pincers for the treatment of laryngopharyngeal diseases |
| CN204765897U (en) * | 2015-05-08 | 2015-11-18 | 华中科技大学同济医学院附属同济医院 | Electrified quick blood coagulation formula laryngeal scissors sword |
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