CN110464447A - A kind of seal assembly for hoe scaler - Google Patents
A kind of seal assembly for hoe scaler Download PDFInfo
- Publication number
- CN110464447A CN110464447A CN201810452676.2A CN201810452676A CN110464447A CN 110464447 A CN110464447 A CN 110464447A CN 201810452676 A CN201810452676 A CN 201810452676A CN 110464447 A CN110464447 A CN 110464447A
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- China
- Prior art keywords
- chamber
- seal assembly
- fluid
- hoe scaler
- sealing ring
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000007913 intrathecal administration Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 7
- 229920002943 EPDM rubber Polymers 0.000 claims description 5
- 208000031872 Body Remains Diseases 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 10
- 210000001519 tissue Anatomy 0.000 description 10
- 238000007711 solidification Methods 0.000 description 7
- 230000008023 solidification Effects 0.000 description 7
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 6
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000023597 hemostasis Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000002679 ablation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 239000002504 physiological saline solution Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 210000000867 larynx Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 201000003741 Gastrointestinal carcinoma Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 210000004268 dentin Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 208000018554 digestive system carcinoma Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012277 endoscopic treatment Methods 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
-
- 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
- A61B2018/00601—Cutting
-
- 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
- A61B2018/1417—Ball
-
- 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
- A61B2018/1422—Hook
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of seal assemblies for hoe scaler, hoe scaler includes front bar, the pipe sheath extended from front bar, two electrodes of two push rods and the top that pipe sheath is set, chamber is formed in front bar and is formed with fluid entry port in the periphery of front bar, manage intrathecal formation fluid-through chamber, liquid enters fluid-through chamber by chamber via fluid entry port, two electrodes are electrically connected to radio-frequency generator via the conducting wire for being each passed through two push rods, wherein, in the side opposite with fluid-through chamber of chamber, it is provided with seal assembly, seal assembly includes the fixed thread component of sealing ring and the side for sealing ring to be fixed on to chamber；And a push rod penetrates sealing ring and enters fluid-through chamber by chamber, another push rod penetrates sealing ring and entered by chamber and is formed in pipe sheath and in the cavity of position that deviates with fluid-through chamber.
Description
Technical field
The present invention relates to a kind of seal assemblies for hoe scaler.
Background technique
With the continuous development of digestive endoscopy technology, the Endoscopic Treatment of disease of digestive tract is also more more and more universal.Under scope
Decollement is for treating early gastrointestinal carcinoma under mucous membrane, enables more Alimentary tract diseases disposably bulk under scope
Complete resection.Traditional operation treatment risk can be exempted, it is high to have the characteristics that small wound, good effect, surgical technic require.
High frequency removing electric knife is a kind of electrosurgical unit for replacing mechanical operation knife to carry out tissue removing, for treating digestion
Road, the urinary tract, the diseases such as respiratory tract.The working principle that high frequency removes electric knife is the high-frequency and high-voltage generated by active electrode tip
Tissue is heated when electric current is contacted with body, the separation and solidification to body tissue are realized, to play removing and hemostasis
Purpose.It is that the high-frequency current of high current density gathers together that high frequency, which removes electric knife, is directly destroyed in sharp with active electrode
Hold the tissue being in contact.When being in contact with active electrode or the temperature of adjoining tissue or cell rises to albumen in cell
When qualitative change, the effect of removing and solidification is just generated.
Over the course for the treatment of, need in cutting process or cutting terminate after to lesions position input treatment liquid, cleaning
The liquid such as liquid, conducting medium, therefore be usually provided with fluid entry port in hoe scaler and lead to the fluid-through chamber of lesion.
This hoe scaler includes front bar and from the axially extending pipe sheath of front bar (slender bodies for protruding into human body), the periphery of front bar
It is provided with fluid entry port, which connects with chamber of the intrathecal fluid-through chamber inside front bar is managed
Logical, cutting wire runs through fluid-through chamber.Liquid enters fluid-through chamber via chamber from fluid entry port and eventually enters into human body.
It has however been found that in the course of surgery, when importing liquid to chamber and fluid-through chamber from fluid entry port, due to liquid
For body there are certain pressure, liquid can be in the side opposite with fluid-through chamber of chamber from the push rod for penetrating the side wall portion and entering chamber
Periphery leak out.The amount of the liquid of supply is caused to increase in this way.
Summary of the invention
The present invention makes in view of problem above and of the invention provides a kind of seal assembly for hoe scaler, hoe scaler
Including front bar, the pipe sheath extended from front bar, two push rods and be arranged in pipe sheath top two electrodes, chamber is formed in front bar
And it is formed with fluid entry port in the periphery of front bar, manages intrathecal formation fluid-through chamber, liquid passes through via fluid entry port
Chamber enters fluid-through chamber, and two electrodes are electrically connected to radio-frequency generator via the conducting wire for being each passed through described two push rods, wherein
In the side opposite with fluid-through chamber of chamber, it is provided with seal assembly, seal assembly includes sealing ring and for consolidating sealing ring
It is scheduled on the fixed thread component of the side of chamber；And a push rod penetrates sealing ring and enters fluid-through chamber by chamber, separately
One push rod penetrates sealing ring and is entered by chamber and is formed in pipe sheath and in the cavity of position that deviates with fluid-through chamber.
Using above-mentioned construction, since the side opposite with fluid-through chamber in chamber is provided with seal assembly, seal assembly packet
It includes the fixed thread component of sealing ring and the side for sealing ring to be fixed on to chamber and a push rod penetrates sealing ring simultaneously
And fluid-through chamber is entered by chamber, another push rod penetrate sealing ring and by chamber enter be formed in pipe sheath and with logical liquid
In the cavity for the position that chamber deviates, therefore seal assembly can be sealed in the periphery of a push rod He another push rod.Knot
Fruit is importing liquid (such as conducting medium etc.) from fluid entry port to chamber and fluid-through chamber using during hoe scaler operation
When, sealing ring can prevent the liquid entered in chamber and fluid-through chamber from fluid entry port due to the pressure of itself and from chamber
Side, leak out from the periphery of two push rods.
Preferably, the seal assembly according to the present invention for hoe scaler may further include block, and block setting exists
Between sealing ring and fixed thread component.
Utilize above-mentioned construction, when the side by rotary fixing screw line component sealing ring to be fixed on to chamber, block
It can tightly be clipped between sealing ring and fixed thread component, to firmly fix sealing ring, while for example work as needs
Sealing ring is dismantled when rotary fixing screw line component, prevents sealing ring from following fixed thread component mobile.
Preferably, the seal assembly according to the present invention for hoe scaler, block may include circular portion and from circle
The lug of part protrusion.
Block can be reliably held at without with solid by the lug of block by its position using above-mentioned construction
Determine screw member rotation.
Preferably, the seal assembly according to the present invention for hoe scaler, sealing ring can be molded by EPDM.
Using above-mentioned construction, since sealing ring is molded by EPDM, it is made compared to traditional using rubber etc.
Sealing element, which can have the abilities such as superior resistance to oxidation, anti-erosion.Therefore, the use of sealing ring can be extended
Service life.
Preferably, the seal assembly according to the present invention for hoe scaler, the side of fixed thread component can be set
Notch.
Using above-mentioned construction, it is caught in notch using particular tool, screw fixed thread component with can be convenient.
Preferably, the seal assembly according to the present invention for hoe scaler, said one push rod can relative to seal assembly
Sliding.
Preferably, the seal assembly according to the present invention for hoe scaler, pipe are inserted into cavity and from the sealings
Component protrudes outward, another described push rod is inserted into the pipe.
Using above-mentioned construction, liquid and the cavity that pipe isolation imports chamber from fluid entry port can use.It changes
Sentence is talked about, which is only capable of entering fluid-through chamber from fluid entry port by chamber, without entering the cavity.
Preferably, the seal assembly according to the present invention for hoe scaler, radio-frequency generator generate the first input electrode, and
And two electrodes are emission electrode and loop electrode, loop electrode and emission electrode are by pipe sheath importing objective body and in target
Body forms galvanic circle；Wherein, emission electrode receives the first input voltage caused by radio-frequency generator, thus in emission electrode
Apply first voltage between loop electrode, so that the liquid for being directed into objective body reaches the first temperature and liquid is promoted to be turned
It is changed to plasmasphere, to generate plasma using electric energy excitation liquid, and based on the RF energy of plasma to mesh
Standard type is vaporized cutting.
Preferably, the seal assembly according to the present invention for hoe scaler, radio-frequency generator further generate the second input
Voltage；And emission electrode receives the second input voltage caused by radio-frequency generator, thus in emission electrode and loop electrode
Between apply second voltage so that objective body remains second temperature.
According to following description with reference to the accompanying drawings, above-mentioned and other purposes of the invention, feature and advantage will become brighter
It is aobvious.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is the side view of the hoe scaler of seal assembly according to the present invention；
Fig. 2 is the partial enlarged view of the circle A in Fig. 1, and wherein seal assembly is dismantled from the hoe scaler；
Fig. 3 is the exploded partial perspective view of the circle A in Fig. 1, and wherein seal assembly is dismantled from the hoe scaler；
Fig. 4 is the longitdinal cross-section diagram for being partially stripped knife；And
Fig. 5 is the cross-sectional view along the line I-I interception in Fig. 1.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Revealed content is understood other advantages and efficacy of the present invention easily.
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is the side view of the hoe scaler (low-temperature plasma hoe scaler) of seal assembly according to the present invention.In the present invention
Hoe scaler can be used in such as early cancer inside stomach diseased region removing, ablation and solidification and hemostasis.In addition, the stripping
From cutting, ablation, solidification and the hemostasis that knife can also be used to soft tissue in the surgical operations such as joint, backbone, skin, ear nose larynx.
The hoe scaler is to belong to brought into temporary contact within 24 hours, according to time of contact classification, according to contact human body property point using the time
Class belongs to external access instrument (with tissue/bone/dentine) and belongs to active medical according to the classification of medical instrument structure feature
Instrument.Hoe scaler uses bipolar scheme, and its working frequency is 105kHz.Optionally, the working frequency of the hoe scaler can be with
In the range of 100-110.Hoe scaler by plasma technology realize to the cutting of soft tissue in the operation such as ear nose larynx, ablation,
Solidification and hemostasis.When work, hoe scaler, as conduction liquid, activates shape when between emission electrode and loop electrode by physiological saline
At a thin layer.When hoe scaler gives enough energy (voltage), physiological saline translates into one by charged particle of energizing
The gas blanket (plasmasphere) of composition.That is, hoe scaler generates plasma using energy excitation conducting medium (for example, physiological saline)
Body, and tissue element key is interrupted by the energy of plasma.The energy of plasma is straight by protein and other
It connects and is cracked into O2, CO2, N2Equal gases, so that the vaporization completed to tissue is removed.When the work cutter head to hoe scaler gives low electricity
When pressure, electric field requires lower than the thresholding for generating plasmasphere and generates tissue resistance heat, so that tissue is carried out ablation solidification
With hemostasis.
The operation part of hoe scaler includes that handle 1, pull rod 2, socket Pin 3, sliding block 4, cushion block 5, front bar 6 (are also referred to as drawn
Pole cap), pipe sheath 7, injecting cavity interface 8 and push rod 9,10 etc..Pull rod 2, which is held to facilitate by operator, operates the hoe scaler.Pipe sheath 7
It is the elongated tubular longitudinally extended from front bar 16, pipe sheath 7 will be inserted into objective body (lesion of human body).
As shown in figure 4, forming chamber 6a in front bar 6, and injecting cavity interface 8 is formed on the periphery of front bar 6.Liquid into
Inbound port 8a is formed in the injecting cavity interface 8 on the periphery of front bar 6.
Fluid-through chamber 18 is arranged in pipe sheath 7, which leads to the top of pipe sheath 7 from the chamber 6a being formed in front bar 6
End.Fluid-through chamber 18 surrounds emission electrode conducting wire 16 (referring to Fig. 5).Liquid (for example, conducting medium, ejected wash water etc.) via liquid into
Inbound port 8a enters fluid-through chamber 18 by chamber 6a.
Pipe sheath 7 is for providing external sheath function.Injecting cavity interface 8 is inputted based on the liquid from controller (not shown)
Instruction input liquid (such as conducting medium), wherein the current surplus of the liquid is by real-time measurement and the current surplus quilt
It is transmitted to controller, controller determines whether to generate the liquid input instruction and generate determining based on the current surplus
Control is to fluid-through chamber 18 and finally defeated to objective body via chamber 6a from fluid entry port 8a after liquid input instruction
Enter.
Further, as in Figure 2-4, hoe scaler further includes seal assembly.Specifically, which includes sealing ring
11 and sealing ring 11 is fixed on to the fixed thread component 12 of the side of chamber 6a, the side of chamber 6a be chamber 6a with it is logical
The opposite side of sap cavity 18.
More specifically, the wall portion of the side of chamber 6a is formed with first step hole 6b, sets on the outside of the 6b of first step hole
It is equipped with diameter of the diameter greater than first step hole 6c of second step hole 6c and second step hole 6c.Sealing ring 11 is relative to this
First step hole 6b is fixed.The inner wall of second step hole 6c is formed with internal screw thread, and the periphery of fixed thread component 12 is formed with
External screw thread.Fixed thread component 12 is threaded in the 6c of second step hole as a result,.In addition, during fixed thread component 12 is
Empty generally cylindrical body.
Further, the seal assembly of preferred embodiment in accordance with the present invention further includes block 13, and block setting is sealing
Between circle 11 and fixed thread component 12.Block 13 includes circular portion and two lug 13a from circular portion protrusion.Lug
13a is adapted in the card slot 15 of second step hole 6c.It is solid by tightening in the case where lug 13a is fitted in card slot
Determine screw member 12, block 13 is fixed in the 6c of second step hole and sealing ring 11 is fixed in the 6b of first step hole.
In addition, block 13 is hollow roughly circular thin-plate element.
In addition, push rod 9 penetrates sealing ring 11 and enters fluid-through chamber 18 by chamber 6a, and push rod 9 is relative to sealing
Component is slidably.Equally, push rod 10 penetrates sealing ring 11 and is entered in pipe sheath 7 by chamber 6a, is being formed in the pipe sheath 7
In and with the fluid-through chamber 18 deviate position cavity 7a in.In the present embodiment, push rod 10 is fixed relative to seal assembly.
Further, pipe 14 is inserted into cavity 7a and protrudes outward from seal assembly (fixing pipe screw member 12), and push rod 10 exists
In pipe 14 slidably.That is, pipe 14 is arranged between cavity 7a and push rod 10.
In addition, as shown in Figure 1, the operation part of hoe scaler further includes that 21 He of emission electrode on the top of pipe sheath 7 is arranged in
Loop electrode 22.Emission electrode 21 is telescopically arranged by push rod 9.
Emission electrode 21 (removing cutter head) and loop electrode 22 (circle set) pass through pipe sheath 7 and are imported into objective body and in target
Body forms galvanic circle.Emission electrode 21 is via the socket Pin being connect by high frequency connecting line with radio-frequency generator (not shown)
3 receive the first input voltage caused by the radio-frequency generators, to apply the between emission electrode 21 and loop electrode 22
One voltage, so that the conducting medium reaches the first temperature and the conducting medium is promoted to be converted into plasmasphere, thus
Plasma is generated using electric energy excitation conducting medium, and stripping is vaporized to objective body based on the RF energy of plasma
From.
As shown in Figure 1, the removing cutter head of emission electrode 21 can in hook-shaped, semicircle is spherical, plum blossom-shaped, cylindric or spherical,
Removing is vaporized to adapt to different target shapes.
Emission electrode 21 is telescopically arranged by sliding block 4.In the initial state, the retraction of emission electrode 21 causes in pipe sheath 7,
To facilitate the front end of pipe sheath 7 to enter human body.After reaching designated position, sliding block 4 is moved forward, and emission electrode 21 is released pipe sheath
7 top end face.
Pull rod 2 is for making operator by providing support force pull rod 2.Socket Pin 3 passes through high frequency connecting line and height
Frequency generator connection, for receiving the first input voltage caused by the radio-frequency generator.Socket Pin 3 receives the high frequency
Second input voltage caused by generator and second input voltage is transferred to emission electrode 21, in emission electrode 21
Apply second voltage between loop electrode 22, so that objective body remains second temperature, so that objective body be promoted to disappear
Melt solidification.
For example, the range of first temperature is 35 DEG C -40 DEG C, the range of the second temperature is 40 DEG C -70 DEG C.It is described
The range of first voltage is 100Vrms to 300Vrms, and the range of the second voltage is 60Vrms to 80Vrms.
The length L1 of loop electrode 22 can be any reasonable numerical value, such as 4 to 5 millimeters.Wherein, loop electrode 22
The one end at close 7 top of pipe sheath can be any reasonable numerical value, such as 2 to 3 millimeters with the top end face distance L2 of pipe sheath 7.
Wherein, the top of pipe sheath 7, fluid entry port from the description below is arranged in water outlet 23 (or referred to as infusion port, see Fig. 1)
The liquid that 8a enters enters objective body from water outlet 23.
Wherein, for example, the material of emission electrode 21 is stainless steel 304, the material of loop electrode 22 is stainless steel 304, pipe
The material of sheath 7 is polytetrafluoroethylene PTFE, and the material of injecting cavity interface 8 is acrylonitrile-butadiene-styrene copolymer ABS, preceding
The material of bar 6 is ABS, and the material of cushion block 5 is ABS, and the material of sliding block 4 is ABS, the material of socket Pin 3 be stainless steel 304 with
And the material of handle 1 is ABS.
As shown in figure 5, illustrating emission electrode conducting wire (removing cutter head conducting wire) 16, loop electrode conducting wire 17, fluid-through chamber 18
With emission electrode chamber 19.In more detail, the enlarged view in Fig. 5 shows the sectional view of emission electrode conducting wire 16, wherein wrapping
Include insulating layer 16a and wire 16b.Emission electrode conducting wire 16 needs insulating layer, acts as insulation and heat-insulated effect, loop electrode
Conducting wire 17 can be not provided with insulating layer.
Emission electrode conducting wire 16 and loop electrode conducting wire 17 are connected with emission electrode 21 and loop electrode 22 respectively.Into one
Step, emission electrode conducting wire 16 and loop electrode conducting wire 17 are each passed through the inside of push rod 9 and push rod 10 and are connected to (not shown)
Radio-frequency generator.It is operable to move forward and push rod 10 mobile relative to seal assembly to push rod 9 in sliding block 4 as described above
When fixed relative to seal assembly, emission electrode conducting wire 16 and loop electrode conducting wire 17 are kept at push rod 9 and push rod
10 inside.
Moreover it is preferred that sealing ring 11 can be molded by such as EPDM.But the invention is not limited to
This.For example, sealing ring 11 can be made of any material that can be realized sealing, such as rubber etc..
Moreover it is preferred that the side (outside) of fixed thread component 12 is provided with notch 12a.But the present invention not office
It is limited to this.For example, lug can be set in the outside of fixed thread part 12 and by lug rotary fixing screw line part 12.
The effect of preferred embodiment in accordance with the present invention realization is described below.
Firstly, since being provided with seal assembly in the side opposite with fluid-through chamber 18 of chamber 6a, seal assembly includes close
The fixed thread component 12 of seal 11 and the side for sealing ring 11 to be fixed on to chamber and push rod 9 penetrates sealing ring 11 simultaneously
And fluid-through chamber 18 is entered by chamber 6a, 10 sealing assembly of push rod can be sealed in the periphery of push rod 9 and push rod 10.As a result,
Liquid is imported to chamber 6a and fluid-through chamber 18 from fluid entry port 8a during being performed the operation using hoe scaler (such as conductive to be situated between
Matter) when, sealing ring 11 can prevent the liquid entered in chamber 6a and fluid-through chamber 18 from fluid entry port 8a due to itself
Pressure and leaked out in the side of chamber 6a, from the periphery of two push rods 9,10.
Further, since block 13 is arranged between sealing ring 11 and fixed thread component 12.Therefore, when solid by rotation
When determining side of the screw member 12 sealing ring 11 to be fixed on to chamber 6a, block 13 can tightly be clipped in sealing ring 11 and consolidate
Determine between screw member 12, to firmly fix sealing ring 11, and while for example when need to dismantle seal assembly rotate it is solid
When determining screw member 12, prevent sealing ring 11 from following fixed thread component 12 mobile.
Further, by the lug 13a of block 13, block 13 can be reliably held to its position without with solid
Determine the rotation of screw member 13.
Further, close compared to made of traditional utilization rubber etc. since sealing ring 11 is molded by EPDM
Sealing, the sealing ring 11 can have the abilities such as superior resistance to oxidation, anti-erosion.Therefore, can extend sealing ring uses the longevity
Life.
Further, the side of fixed thread component 12 is provided with notch.Therefore, it is caught in notch using particular tool, it can be with
Easily screw fixed thread component 12.
Further, pipe 14 is inserted into cavity 7a and protrudes outward from seal assembly, and push rod 10 is inserted into pipe 14.Cause
This, can use liquid and cavity 7a that the isolation of pipe 14 imports chamber 6a from fluid entry port 8a.In other words, the liquid
Body is only capable of entering fluid-through chamber 10 from fluid entry port 8a by chamber 6a, without entering cavity 7a.
Further, due to the removing cutter head of emission electrode 21 can in hook-shaped, semicircle is spherical, plum blossom-shaped, cylindric or spherical,
Therefore, removing can be vaporized to objective body of different shapes.
Although 16 surrounding of emission electrode conducting wire as described above forms fluid-through chamber, those skilled in the art is according to need
It wants, loop electrode chamber 19 can also be regard as fluid-through chamber, when loop electrode chamber 19 is as fluid-through chamber, loop electrode conducting wire 17 is needed
Insulating layer is set.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (9)
1. a kind of seal assembly for hoe scaler, the hoe scaler include front bar, the pipe sheath extended from the front bar, two push away
Two electrodes of bar and the top that the pipe sheath is arranged in, the front bar is interior to be formed chamber and is formed in the periphery of the front bar
There are fluid entry port, the intrathecal formation fluid-through chamber of pipe, liquid is entered via the fluid entry port by the chamber
The fluid-through chamber, described two electrodes are electrically connected to radio-frequency generator via the conducting wire for being each passed through described two push rods, special
Sign is:
In the side opposite with the fluid-through chamber of the chamber, it is provided with seal assembly, the seal assembly includes sealing ring
With the fixed thread component of the side for the sealing ring to be fixed on to the chamber；And
One push rod penetrates the sealing ring and enters the fluid-through chamber by the chamber, another push rod penetrates described close
Seal and being entered by the chamber is formed in the pipe sheath and in the cavity of position that deviates with the fluid-through chamber.
2. being used for the seal assembly of hoe scaler as described in claim 1, which is characterized in that the seal assembly further comprises
Block, the block are arranged between the sealing ring and the fixed thread component.
3. as claimed in claim 2 be used for hoe scaler seal assembly, which is characterized in that the block include circular portion and
The lug protruded from circular portion.
4. being used for the seal assembly of hoe scaler as described in claim 1, which is characterized in that the sealing ring is by EPDM mould
It makes.
5. being used for the seal assembly of hoe scaler as described in claim 1, which is characterized in that the side of the fixed thread component
It is provided with notch.
6. being used for the seal assembly of hoe scaler as described in claim 1, which is characterized in that one push rod is relative to described
Seal assembly is slidably.
7. as described in claim 1 be used for hoe scaler seal assembly, which is characterized in that pipe be inserted into the cavity and
It is protruded outward from the seal assembly, another described push rod is inserted into the pipe.
8. being used for the seal assembly of hoe scaler as described in claim 1, which is characterized in that
The radio-frequency generator generates the first input voltage；And
Described two electrodes are emission electrode and loop electrode, and the loop electrode is led with the emission electrode by the pipe sheath
Enter objective body and forms galvanic circle in the objective body；
Wherein, the emission electrode receives the first input voltage caused by the radio-frequency generator, thus in the transmitting electricity
Apply first voltage between pole and the loop electrode, so that the liquid for being directed into the objective body reaches the first temperature simultaneously
And the liquid is promoted to be converted into plasmasphere, to excite the liquid to generate plasma using electric energy, and it is based on
The RF energy of plasma is vaporized cutting to the objective body.
9. being used for the seal assembly of hoe scaler as claimed in claim 8, which is characterized in that
The radio-frequency generator further generates the second input voltage；And
The emission electrode receives second input voltage caused by the radio-frequency generator, thus in the emission electrode
Apply second voltage between the loop electrode, so that the objective body remains second temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452676.2A CN110464447A (en) | 2018-05-13 | 2018-05-13 | A kind of seal assembly for hoe scaler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452676.2A CN110464447A (en) | 2018-05-13 | 2018-05-13 | A kind of seal assembly for hoe scaler |
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| Publication Number | Publication Date |
|---|---|
| CN110464447A true CN110464447A (en) | 2019-11-19 |
Family
ID=68504436
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810452676.2A Pending CN110464447A (en) | 2018-05-13 | 2018-05-13 | A kind of seal assembly for hoe scaler |
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|---|---|
| CN (1) | CN110464447A (en) |
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| CN107736934A (en) * | 2017-10-27 | 2018-02-27 | 上海诺英医疗器械有限公司 | A kind of low-temperature plasma hoe scaler surgical apparatus |
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|---|---|---|---|---|
| GB814503A (en) * | 1956-06-06 | 1959-06-03 | Jay Paul Gould | Thermocouple attachment for pressure vessels, lines and the like |
| US6355032B1 (en) * | 1995-06-07 | 2002-03-12 | Arthrocare Corporation | Systems and methods for selective electrosurgical treatment of body structures |
| US20120116397A1 (en) * | 2010-11-08 | 2012-05-10 | Bovie Medical Corporation | Electrosurgical apparatus with retractable blade |
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