CN203790030U - High-frequency electric cutter for nasolacrimal ducts - Google Patents
High-frequency electric cutter for nasolacrimal ducts Download PDFInfo
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- CN203790030U CN203790030U CN201420052529.3U CN201420052529U CN203790030U CN 203790030 U CN203790030 U CN 203790030U CN 201420052529 U CN201420052529 U CN 201420052529U CN 203790030 U CN203790030 U CN 203790030U
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- knife
- frequency electric
- handle
- cutter head
- high frequency
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Abstract
The utility model discloses a high-frequency electric cutter for nasolacrimal ducts. The high-frequency electric knife comprises a traction line, an annular cutter head, a flexible sleeve connected with the annular cutter head and a cutter handle connected with the flexible sleeve. The annular cutter head is an elastic metal wire ring, one end of the annular cutter head is connected with the traction line, and the other end of the annular cutter head is connected with a metal rod in the cutter handle through a metal wire in the flexible sleeve. The flexible sleeve is flexible and bendable and can be adaptable to included angles of the nasolacrimal ducts. The high-frequency electric cutter for the nasolacrimal ducts can be connected with a motor of an ordinary high-frequency electric cutter. After probing, the traction line is led into a lacrimal passage to move reversely in a nasal cavity to drag the annular cutter head into a lacrimal sac and the nasolacrimal ducts. After electrification, the lacrimal duct obstruction portions can be cut off or cut open. The high-frequency electric cutter for the nasolacrimal ducts has safety and practicability, can reduce operation wound, reduces difficulty and risk in implanting nasolacrimal duct supports, provides larger diameter for recanalization and reconstruction of the nasolacrimal ducts and can achieve the expected purposes of medical workers.
Description
Technical field
This utility model relates to two class apparatuses of a kind of ophthalmology outpatient service and the conventional medical disposable material class of operating room, is specifically related to a kind of operation consumptive material nasolacrimal duct high frequency electric knife.
Background technology
Obstruction of naso lacrimal duct is ophthalmology common disease and frequently-occurring disease, generally adopts operative treatment.Retain the minimally-invasive treatment method of nasolacrimal duct physiological structure, as Laser surgery for lacrimal duct obstruction, electronic cautery art, the clinical practices such as lacrimal canal bracket pipe implantation are more.Laser surgery for lacrimal duct obstruction more easily form via, limited by the hard protective cover pipe outside lacrimal ductule diameter and laser fiber, the nasolacrimal duct caliber of shaping is less, treatment obstruction of naso lacrimal duct often curative effect is not good enough.Although electronic cautery art insulate by the method for specific coatings at silver detecting probe surface, the diameter of the high-frequency electrical site of action of obtainable end of probe and probe body diameter approach, but limited by lacrimal ductule, probe diameter is generally 0.8-1.2mm, and the hot injury of site of action is obvious.Lacrimal canal bracket pipe is often implanted because obstructive position is not cut or cut and implant difficulty, or because of the hypertrophy operative failure again of obstructive position after tube drawing.Therefore, the processing at obstruction of naso lacrimal duct position need to be to surrounding tissue wound the larger as far as possible apparatus of nasolacrimal duct diameter after little and plasty, for the logical and reconstruction again of nasolacrimal duct provides larger diameter, reduce lacrimal canal bracket pipe and implant difficult risk.
Electronic cautery art often adopts lacrimal passage high-frequency electrical circulation instrument (patent No. 03274086.7), and the high frequency voltage dominant frequency of its output is 450kHz ~ 550kHz, and its high frequency electric energy is mainly heat energy, gasifiable or carbonization nasolacrimal duct tissue.Surgery Regular History Frequency electric knife, adopts the directed rf wave lift-off technology of 3.8MHz, forms the radio frequency electrical wave field of assembling in emitter stage local tissue, under low temperature (40 DEG C～70 DEG C) state, can reach the cutting effect of meticulous Wicresoft.Still lack at present the apparatus of the cutting effect of the meticulous Wicresoft of common high frequency electric knife being brought into nasolacrimal duct.
Electronic cautery art often adopts lacrimal passage high-frequency electrical circulation instrument, and Laser surgery for lacrimal duct obstruction needs laser lacrimal passage therapeutic equipment, all more expensive.And all there is outfit high frequency electric knife in general hospital's (surgery), the clinical obstructed lacrimal passage therapeutic device that can utilize common high frequency electric knife main frame that still lacks.
Summary of the invention
This utility model object is the defect for above-mentioned prior art, a kind of nasolacrimal duct high frequency electric knife is provided, lead to and draw after draught line in spy, can be more easily endless knife headband to obstruction of naso lacrimal duct position, because it can effectively utilize common high frequency electric knife main frame, under the effect of high frequency electric knife, cut obstruction of naso lacrimal duct position meticulous Wicresoft.Annular cutter head has certain elasticity, and collapsible rear by narrow and small obstruction of naso lacrimal duct position, after energising cutting, endless knife head shapes is recovered, and can continue to cut after energising, and the diameter after nasolacrimal duct is shaped is larger, can reach bone nasolacrimal duct diameter, and hot injury is little simultaneously.Because the diameter after nasolacrimal duct shaping is larger, when associating lacrimal canal bracket pipe is implanted, implant difficult Risk Reduction, be expected to improve cure rate.
To achieve these goals, the technical scheme that this utility model is taked is: a kind of nasolacrimal duct high frequency electric knife that can be connected with common high frequency electric knife main frame, comprise draught line, annular cutter head, the soft tube and the handle of a knife being connected with soft tube, soft tube and the handle of a knife inner hollow that are connected with annular cutter head.
Described draught line, with scale mark, insulate, nonelastic, has certain intensity, is firmly secured to (available ligature type is fixed) endless knife crown end.Respectively at the annular cutter head 40mm of distance, 22mm, visible marking is at 10mm place, be used to indicate nasolacrimal duct nasal cavity opening, nasolacrimal duct lachrymal sac opening, tear house steward lachrymal sac opening, a scale is all done with the every 5mm of suitable labelling in other positions, can select No. 3 silk threads of white, adopt the wide black of 1mm to be visible marking, the wide blue markings 5mm scale of 0.5mm.Total length is not shorter than 150mm.
Described annular cutter head is resilient wire rings, and preferred version is tungsten filament, diameter 0.10 ~ 0.15mm, the LEEP cutter tungsten filament electrode using because of department of obstetrics and gynecology can Secure Application in human body, annular cutter head can be used for reference its material.Its top bending conveniently enters narrow nasolacrimal duct into about 60 degree without most advanced and sophisticated angle.Form the wide not attaching space of 2mm with soft tube junction, ring ovalize, is about 6mm, wide about 4mm.Tungsten filament annular cutter head is flexible, can compressive deformation, and pressure can elastic return shape after removing.
Described soft tube is insulant, and quality softness is closely connected with handle of a knife, can be with handle of a knife axial-rotation, and have suitable excessive portion, soft tube inner hollow, has the plain conductor being connected with cutter head and handle of a knife in tube wall.Preferred version is: the material of soft tube is silica gel, is about altogether 30mm(and comprises the excessive 5mm of portion), external diameter is 2mm, internal diameter is 1mm.Plain conductor in soft tube tube wall can be selected the tungsten filament consistent with endless knife head material, and surface is wound around the tungsten filament of 0.05mm, or selects diameter than the slightly thick tungsten filament in annular cutter head place, or uses two strands of tungsten filaments, makes its anti-tractive energy force rate cutter head strong.Its surface, through coarse processing, increases rotation followability, and while rotation, whole piece soft tube can synchronous rotary.In soft tube, plain conductor is at least apart from outer surface 0.25mm.The about 5mm diameter of excessive minister of soft tube is increased slightly to 5mm gradually by 2mm; hollow space and metal parts in it are constant; excessively portion does not enter in nasolacrimal duct; protection soft tube is not fractureed while rotating with bending in nasolacrimal duct; the excessive portion of soft tube can suitably extend to handle of a knife, ensures soft tube and the close combination of handle of a knife.
The surface-coated insulant of described handle of a knife, inside is the metal bar being connected with soft tube inner metal component, the first half metal bar inner hollow being connected with soft tube, there is scale on handle of a knife surface, handle of a knife tail end is consistent with common high frequency electric knife tail end, can be connected with common high frequency electric knife wire corresponding site and connect.Preferred version is: the surface-coated insulant of handle of a knife is polrvinyl chloride thermal shrinkable sleeve, external diameter is 5mm, thick about 1.0mm, be about 110mm, there is scale on surface, every 1 millimeter is done part mark with the wide blue marking line of 0.2mm, 5 millimeters of marks do all-round mark with the wide black marking line of 0.2mm, at the 20mm(of handle of a knife taking adjacent with the excessive portion of soft tube handle of a knife place as 0 scale) and the wide yellow of 0.4mm (20mm place) is done at 35mm place and red (35mm place) marking line does all-round mark, indicates nasolacrimal duct opening part and the tear house steward opening part of lachrymal sac.Metal bar material in handle of a knife is rustless steel, diameter is 3mm, be about 125mm, metal bar is part hollow design, middle vacancy thickness of pipe wall 1mm, and internal diameter is 1mm, liquid stream or air-flow that water conservancy diversion annular cutter head place produces, hollow space, to the youthful and the elderly 70mm, is opened on handle of a knife middle part, and its direction is vertical with endless knife head plane; The coating insulant (thermal shrinkable sleeve) of opening part is designed to become with handle of a knife the germ tube of miter angle, and germ tube is about 8mm, external diameter 2mm, and internal diameter 1mm, germ tube can be connected with suction pump by suitable switching.Metal bar afterbody can be solid cylindrical, and its structure is consistent with common high frequency electric knife afterbody, can be connected with high frequency electric knife wire corresponding site and connect, and can easily be connected with high-frequency electrical main frame.
The beneficial effects of the utility model are: compared with prior art, nasolacrimal duct high frequency electric knife of the present utility model, does not need to buy separately high frequency electric knife main frame, can share with surgery.Its annular cutter head has certain elasticity, and after energising cutting, the diameter of the nasolacrimal duct of shaping is larger, can reach 4mm, is not subject to the restriction of the maximum 1mm of lacrimal ductule diameter left and right.The position that scale mark line on draught line and handle of a knife can more easily indicate high frequency electric knife cutter head to arrive; germ tube can be used for indicating the angle of annular cutter head place plane; draught line, soft tube, the insulant on handle of a knife surface can effectively be protected lacrimal passage and nasal cavity, makes it avoid high-frequency electrical damage.Hollow design can water conservancy diversion annular cutter head the place liquid stream or the air-flow that produce, can effectively protect lacrimal passage to avoid hot injury.Concerning patient, can reduce expense, improve curative effect, reduce wound.
Brief description of the drawings
Fig. 1 is the perspective view of a preferred case study on implementation of nasolacrimal duct high frequency electric knife of the present utility model.
Fig. 2 is the enlarged diagram of the draught line part of Fig. 1.
Fig. 3 is the enlarged diagram that the scale of the handle of a knife insulated part of Fig. 1 indicates.
Fig. 4 is the positive generalized section (endless knife head plane) of the metal parts structure of Fig. 1.
Fig. 5 is the side generalized section (vertical with endless knife head plane) of the metal parts structure of Fig. 1.
Fig. 6 is the schematic diagram that is related to of the soft tube, handle of a knife of Fig. 1 and the hollow structure in it and germ tube.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is done into an explanation, but not as restriction of the present utility model.
Fig. 1 is the perspective view of a preferred embodiment of nasolacrimal duct high frequency electric knife of the present utility model.A kind of nasolacrimal duct high frequency electric knife as shown in Figure 1, comprise annular cutter head 2, the draught line 1, the soft tube 3 that are connected with annular cutter head 2, handle of a knife 5, the excessive portion 4 between soft tube 3 and handle of a knife 5, the hollow structure of soft tube 3, the excessively hollow structure of portion 4 and the soft tube of handle of a knife 5 end part is connected, be opened on handle of a knife 5 middle parts and form germ tube 6 in opening part, handle of a knife tail end 7 is consistent with standard high frequency electric knife tail end, can be connected with high frequency electric knife wire corresponding site and connect, and is conveniently connected with high frequency electric knife main frame.This structure contributes at the larger nasolacrimal duct diameter of obstructive position shaping, and protection lacrimal passage and nasal cavity, avoid high-frequency electrical damage.
Fig. 2 is the draught line part enlarged diagram of Fig. 1.Draught line is firmly secured to annular cutter head 2 tops.Visible marking 8 is respectively at apart from annular cutter head 40mm, 22mm, and 10mm place, is used to indicate endless knife crown end and is positioned at nasolacrimal duct nasal cavity opening, and when nasolacrimal duct lachrymal sac opening and tear house steward lachrymal sac opening part, draught line is in the position at lacrimal point place.Suitably the every 5mm of labelling 9 does a scale.Draught line can be selected No. 3 silk threads of white, adopts the wide black of 1mm to be visible marking, the wide blue markings 5mm scale of 0.5mm.Total length is not shorter than 150mm.
Fig. 3 is that the scale of the handle of a knife insulated part of Fig. 1 indicates enlarged diagram.There is scale on handle of a knife surface, taking with the excessive portion 4 of soft tube with handle of a knife 5 adjacents as 0 scale, every 1 millimeter is done part mark with the wide marking line of 0.2mm, all-round mark does with the wide marking line of 0.2mm in every 5 millimeters of places, do the wide marking line of 0.4mm at the 20mm of handle of a knife and 35mm place and do all-round mark 10, while roughly indicating annular cutter head top to be positioned at the nasolacrimal duct opening part of lachrymal sac and tear house steward opening part, handle of a knife is in the position at wing of nose place.When 0 scale place is roughly equivalent to endless knife crown end and is positioned at nasolacrimal duct nasal cavity opening part, handle of a knife is in the position at wing of nose place.Can the corroborate each other position at annular cutter head place of the labelling of draught line and the scale of handle of a knife.
Fig. 4 is the generalized section of the endless knife head plane of the metal parts structure of Fig. 1.Annular cutter head 2 is made into and is about 6mm by the tungsten filament of diameter 0.10 ~ 0.15mm, and the elliptical annular of wide about 4mm forms the wide not attaching space of 2mm in soft tube junction.The tungsten filament that tungsten filament surface in soft tube is wound around 0.05mm does coarse processing, forms the metal parts 11 of soft tube portion, and this processing can strengthen rotating followability, and soft tube can not twist with handle of a knife rotation.The metal parts 11 of soft tube portion adopts firmly welding manner to be connected with the metal bar material 12 of the part hollow in handle of a knife 5.The hollow open place 13 of metal bar material 12 connects germ tube.Handle of a knife afterbody 7 can suitably cut, consistent with common high frequency electric knife tail end, can be connected with common high-frequency electrical main frame easily.The design of this metal parts structure can increase rotation followability and stability, ensures that soft tube part can be bending in nasal cavity and nasolacrimal duct simultaneously.
Fig. 5 is the side generalized section of the metal parts structure of Fig. 1.The hollow open place 13 of metal bar material 12 is vertical with endless knife head plane, coordinates germ tube 6 to can be used for indicating the angle of annular cutter head place plane.
Fig. 6 is the schematic diagram that is related to of the soft tube, handle of a knife of Fig. 1 and the hollow structure in it and germ tube.Hollow structure in soft tube and handle of a knife is directly connected with germ tube, and germ tube can be connected with suction pump through suitable switching, liquid or the gas at water conservancy diversion annular cutter head place, and protection cutting position lacrimal passage around is not subject to hot injury.
In the time using nasolacrimal duct high frequency electric knife of the present utility model, first by lacrimal probe (patent No. ZL200802123773.3) lacrimal passage probing, and the position of record obstruction, take the draught line of nasolacrimal duct high frequency electric knife out of by the memory guide wire in probe, draw annular cutter head and enter lachrymal sac, handle of a knife tail end is connected to wire corresponding site with high frequency electric knife and connects, and be connected with high frequency electric knife main frame.Drawing annular cutter head by handle of a knife retreats to obstructive position, regulating power and cut mode, switch on power, obstructive position is carried out to the incision of meticulous Wicresoft, or rotary cutting removes, form larger-diameter shaping nasolacrimal duct, and can take the nasolacrimal duct tissue of excision out of by the germ tube vacuum suction at handle of a knife middle part simultaneously.After operation, can combine and implant nasolacrimal duct reparation after lacrimal canal bracket pipe or drainage tube (patent No. ZL 200720171181.X) guide operation.
Above-described embodiment, the just more preferably one in detailed description of the invention of this utility model, the common variation that those skilled in the art carries out within the scope of utility model technical scheme and replacing all should be included in protection domain of the present utility model.
Claims (6)
1. a nasolacrimal duct high frequency electric knife, comprises draught line, annular cutter head, the soft tube being connected with annular cutter head and the handle of a knife being connected with soft tube, soft tube and the first half handle of a knife inner hollow being connected.
2. a kind of nasolacrimal duct high frequency electric knife according to claim 1, is characterized in that, described draught line, with scale mark, insulate, nonelastic.
3. a kind of nasolacrimal duct high frequency electric knife according to claim 1, is characterized in that, described annular cutter head is resilient wire rings.
4. a kind of nasolacrimal duct high frequency electric knife according to claim 1, it is characterized in that, described soft tube is insulant, quality softness, closely be connected with handle of a knife, can be with handle of a knife axial-rotation, and have suitable excessive portion, soft tube inner hollow, has the plain conductor being connected with cutter head and handle of a knife in tube wall.
5. a kind of nasolacrimal duct high frequency electric knife according to claim 1, it is characterized in that, the surface-coated insulant of described handle of a knife, inside is the metal bar being connected with plain conductor in soft tube, the first half metal bar inner hollow being connected with soft tube, there is scale on handle of a knife surface, and handle of a knife tail end is consistent with common high frequency electric knife tail end, can be connected with common high frequency electric knife wire corresponding site and connect.
6. according to a kind of nasolacrimal duct high frequency electric knife described in claim 4 or 5, it is characterized in that, hollow space in described soft tube, is connected with hollow space in metal bar, is opened on handle of a knife middle part, and its direction is vertical with cutter head plane; The coating insulant of opening part is designed to become with handle of a knife the germ tube of miter angle, and germ tube can be connected with suction pump by suitable switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052529.3U CN203790030U (en) | 2014-01-27 | 2014-01-27 | High-frequency electric cutter for nasolacrimal ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052529.3U CN203790030U (en) | 2014-01-27 | 2014-01-27 | High-frequency electric cutter for nasolacrimal ducts |
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| Publication Number | Publication Date |
|---|---|
| CN203790030U true CN203790030U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052529.3U Expired - Fee Related CN203790030U (en) | 2014-01-27 | 2014-01-27 | High-frequency electric cutter for nasolacrimal ducts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879205A (en) * | 2014-10-23 | 2016-08-24 | 李进凯 | High-pressure-type bony nasolacrimal duct expander |
| CN105999427A (en) * | 2016-05-09 | 2016-10-12 | 西南交通大学 | Anti-adhesion electric scalpel electrode |
-
2014
- 2014-01-27 CN CN201420052529.3U patent/CN203790030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879205A (en) * | 2014-10-23 | 2016-08-24 | 李进凯 | High-pressure-type bony nasolacrimal duct expander |
| CN105999427A (en) * | 2016-05-09 | 2016-10-12 | 西南交通大学 | Anti-adhesion electric scalpel electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20170127 |