CN110279466A - A kind of hemostatic device - Google Patents
A kind of hemostatic device Download PDFInfo
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- CN110279466A CN110279466A CN201910669993.4A CN201910669993A CN110279466A CN 110279466 A CN110279466 A CN 110279466A CN 201910669993 A CN201910669993 A CN 201910669993A CN 110279466 A CN110279466 A CN 110279466A
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- 230000002439 hemostatic effect Effects 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 76
- 239000002826 coolant Substances 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims description 14
- 230000023597 hemostasis Effects 0.000 abstract description 51
- 238000005520 cutting process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract 1
- 238000002679 ablation Methods 0.000 description 21
- 238000001816 cooling Methods 0.000 description 12
- 238000005345 coagulation Methods 0.000 description 10
- 230000015271 coagulation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000003902 lesion Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 102100031144 Coilin Human genes 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 108010051876 p80-coilin Proteins 0.000 description 3
- 239000002504 physiological saline solution Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
-
- 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
- A61B2018/00345—Vascular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
- A61B2018/143—Needle multiple needles
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- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
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- Plasma & Fusion (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a kind of hemostatic devices, including at least a pair of electrodes, and each pair of electrode includes a work pole and circuit pole；The electrode is provided with inlet and liquid return hole, and the cavity being connected to inlet and liquid return hole is provided in the electrode, and inlet, cavity and liquid return hole constitute cooling medium circulation canal.The present invention has taken away the heat on electrode by the flowing of cooling medium and has avoided sticking phenomenon so that electrode remains lower temperature, so that energy be enable to continue to export, and then generates biggish hemostasis range.Due to regional rule of stopping blooding, it is more convenient cutting operation, procedure efficiency can be greatly improved.Therefore, the present invention solves the technical issues of irregular existing hemostatic device hemostasis region and easy " viscous knife " simultaneously.
Description
Technical field
The present invention relates to a kind of instruments for hemostasis.
Background technique
Electrosurgery hemostatic device, such as electric knife, electric coagulation forceps, ultrasound knife, diathermy forceps etc. are often used in surgical operation；
And current electrosurgical unit is usually to be used for surface hemostasis, hemostasis depth and hemostasis range are smaller, are cut on a large scale
Hemostasis efficiency is lower when operation.And the hemostasis electrode of current hemostatic device does not have cooling function, cause tissue rapidly it is dry and hard,
There is the phenomenon that " viscous knife " in carbonization, and the tissue of incrustation hinders the transmission of energy, significantly weaker haemostatic effect, and needs flower more
More time carries out clearing electrode.In addition, formed when current hemostatic device use hemostasis region (such as spherical, elliposoidal and
Other abnormity) be inconvenient to cut, reduce procedure efficiency.In actual operation, whether hemostasis region is ideal, in particular, easy to cut
Cuboid stop blooding region, for improve procedure efficiency be very important.But current hemostatic device cannot be formed
The hemostasis region easy to cut such as cuboid, is not able to satisfy the demand of fast hand art.
Summary of the invention
In view of this, the present invention provides a kind of hemostatic device, solves existing hemostatic device hemostasis region irregularly and hold
Easily " viscous knife " the technical issues of.
In order to solve the above technical problems, the technical scheme is that using a kind of hemostatic device, a pair of use is included at least
In the electrode of conductive hemostasis and ablation, each pair of electrode includes a work pole and circuit pole, each work pole and circuit pole
Interval setting；The electrode is provided with inlet, liquid return hole, and is connected to inlet and liquid return hole and constitutes cooling medium circulation
The cavity in channel.Electrode is connect by connectorized cable line with radio frequency plasma host, after energization, so that RF energy is in work
Make to flow between pole and circuit pole.Since tissue has a constant impedance, heat can be generated when RF energy flows through tissue, and the heat
Amount enables tissue coilin shrink, be dehydrated, and makes vessel sealing, to realize hemostatic function.In hemostasis, electrode itself will not be sent out
Heat, the heat that " ohm fever " generates when the heat of hemostasis flows through tissue from RF energy.
The RF energy of electrode perimeter is much larger than the RF energy of distant place, this results in the tissue of electrode perimeter that can more hold
Easily de- liquid is dry and hard, if the tissue premature dehydration of electrode perimeter is dry and hard, RF energy can not be transferred to farther tissue and go, that
It can not just stop blooding to the tissue of distant place, hemostasis range greatly reduces.
As an improvement the electrode is the needle electrode with cavity, needle electrode includes the electrode sheet of straight tube-like
Body, described electrode body one end are closed tip, and the other end is inlet, are the cavity of electrode between tip and inlet；
Electrode body is arranged on the side wall of inlet in the liquid return hole.The shape of electrode is straight tube-like and has tip, so that
Electrode is convenient for going deep into tissue or is flat against the enterprising whereabouts blood of tissue.Entire electrode is closed state, so that cooling medium is only capable of
It is non-leakage in electrode interior circulation.Position of the electrode body close to inlet is arranged in liquid return hole, can not only increase cooling Jie
The stroke that matter flows in electrode body improves heat dissipation effect, and can be improved the depth of each electrode insertion tissue.
Improved as a kind of further, be provided with the inlet tube for extending into cavity at the inlet, inlet tube it is straight
Diameter is less than the diameter of electrode body, and there are gaps for inlet tube one end for being located at cavity inside and the tip of electrode body.Feed liquor
Pipe gos deep into inside electrode body, since the feed liquor pipe diameter is less than electrode body, and with the tip of electrode body there are gap,
So that having the cavity for cooling media flow between inlet tube and electrode body, make the logical into channel and reflux of cooling medium
Road separation, flows back more efficient, can take away heat more in time.
As a kind of further improvement, inlet tube is coaxial with electrode body.Between ensuring between inlet tube and electrode body
Every unanimously avoid it is unilateral so that cooling medium Uniform Flow in electrode body.
As a kind of further improvement, the electrode is needle-shaped and arc-shaped.
As a kind of further improvement, the effect end (i.e. electrode body has cuspidated one end) of each electrode is flat
Together.So that the depth of each electrode insertion tissue depth can be identical, and when carrying out deep layer hemostasis, or flatting against tissue surface, energy
It is enough to form the hemostasis region for being easier to cutting.
As a kind of further improvement, it is parallel to each other between each electrode or adjacent electrode is arranged in positive eight word,
Or adjacent electrode is in eight words setting.The hemostasis region convenient for surgical cut is advantageously formed, it is similar spherical or ellipse without being formed
Spherical shape etc. is not easy to the hemostasis region of surgical cut.In conjunction with holding this neat feature level with both hands with the effect of each electrode, it can produce
Raw ideal cuboid hemostasis region.The length or width in cuboid hemostasis region and the ratio of thickness is not usually small
In 2.
It is improved as a kind of further, the inlet of each electrode passes through feed liquor branch pipe respectively, and to be communicated with feed liquor total
Pipe；The liquid return hole of each electrode is communicated with back liquid general pipeline by returning liquid branch pipe respectively.I.e. each cooling medium circulation canal
It is formed in parallel.The cooling medium that outside enters can reach each electrode for needing to cool down simultaneously, cool down much sooner, avoid
" viscous knife ", cooling effect is more preferable.The liquid return hole of each electrode is communicated with back liquid general pipeline by returning liquid branch pipe respectively, convenient for connecting
Connect cooling medium circulation device.
As another improvement, an electrode is connected by liquid return hole with the inlet of electrode described in another
It is logical, make to constitute concatenated cooling medium circulation canal between electrode two-by-two.After series connection, it is only necessary to which the inlet of first electrode is logical
It crosses feed liquor branch pipe and is communicated with feed liquor house steward, the liquid return hole of the last one electrode is communicated with back liquid general pipeline by returning liquid branch pipe.
The cooling medium that outside enters can successively reach each electrode for needing to cool down, and can cool down in time, avoid " viscous knife ", cool down
Effect is also preferable.
As a preference, the electrode is two pairs to arrange in a word.The instrument for being currently used for deep layer ablation is for example micro-
Wave ablation needle, just for the ablation of tissue of deep layer specific region, ablation areas is round or oval mostly, the zone of ablation of round shape
Domain is unfavorable for cutting operation.It is arranged by a word, bigger cuboid hemostasis region can be formed, hemostasis range is wide.
As an improvement further including the shell for encapsulated electrode, the shell is put together by upper casing and lower casing；And
Extend shell in the tip of the electrode body.
As an improvement the ratio between the length of the electrode body service portion and width are not less than 2.So-called service portion is
Refer to that electrode body can be inserted into the part of tissue.In order to guarantee insertion depth, the length of the service portion of electrode body is at least its width
Twice or twice or more of degree.
As a preference, the electrode body is flat column.
The invention has the beneficial effects that: electrode of the invention is hollow, and cavity is connected to inlet and liquid return hole respectively,
It constitutes cooling medium circulation canal and utilizes cooling in use, cooling medium can pass sequentially through inlet, cavity and liquid return hole
Medium belt walks the heat on electrode；Therefore the temperature of electrode is not too high (being maintained at 25 DEG C or so), is not in that " viscous knife is existing
As ", and the tissue of surrounding them will not be dry and hard too early, and RF energy is transferred out, and enables the tissue heat production of distant place, takes off
Water, hemostasis.After energization, RF energy can within the organization portion generate substantially cuboid ablation areas (or section be in four sides
The ablation areas of shape/trapezoidal), after repeatedly melting, tissue forms three-dimensional coagulation band, constitutes each side or face of coagulation band
Relatively straight (straight flange, plane), is more conducive to cutting.It is cut-off lines by the cutting tissue of lesion to solidify belt edge, cuts side
It is separated with primary side by coagulation band, avoids bleeding.Meanwhile the heat on electrode is taken away by the flowing of cooling medium
Amount, so that electrode remains lower temperature, avoids sticking phenomenon, so that energy be enable to continue to export, and then generates
Biggish hemostasis range.Additionally, due to the design of bipolar electrode (if work pole is extremely parallel and isometric with circuit), RF energy is only
It transmits between the electrodes, and RF energy can be in the vertical spread of electrode connecting line, to form flat cuboid
Stop blooding (ablation) region (or section is in ablation areas of quadrangle/trapezoidal), regional rule of stopping blooding, more convenient cutting operation, energy
Greatly improve procedure efficiency.Therefore, the present invention solves existing hemostatic device hemostasis region irregularly and easy " viscous knife " simultaneously
The technical issues of.The present invention can be not only used for surface hemostasis ablation, can be also used for the hemostasis ablation of deep tissues.It can make
With needle electrode or needle-shaped arc-shaped electrode etc., it is inserted into inside deep tissues, will form the ablation areas of cuboid；When flatting against group
When knitting surface, relatively thin cuboid (or rectangle) ablation areas can be formed in tissue surface.In addition, since the present invention adopts
It is that spaced work pole and circuit pole, RF energy act only on lesion tissue, will not be powered to entire human body,
Negative plate cooperation, security risk caused by can be avoided common monopolar electrode due to negative plate is easy to fall off, Bu Huizhuo are not needed
It hurts sb.'s feelings body, meanwhile, the trouble needed using negative plate is also eliminated, so that operation more safety and conveniently.To solve above-mentioned ask
Topic, does not find the prior art data that can refer to, and those skilled in the art is also difficult to expect " cooling medium circulation is logical
Road " can produce so good effect in conjunction at least a pair of of bipolar electrode.
Detailed description of the invention
Fig. 1 is surface structure schematic diagram of the invention.
Fig. 2 is schematic diagram of internal structure of the invention.
Fig. 3 is electrode structure schematic diagram.
Fig. 4 is that cooling medium flows schematic diagram.
Fig. 5 is tandem electrode schematic diagram.
Fig. 6 is arc-shaped electrode schematic diagram.
Fig. 7 is working effect schematic diagram.
Fig. 8 is the structural schematic diagram after repeatedly melting.
Marked in the figure: 1 electrode, 2 upper casings, 3 lower casings, 4 feed liquor house stewards, 5 times liquid general pipeline, 6 cables, 7 brackets.
11 work poles, 12 circuit poles.
41 feed liquor branch pipes, 51 times liquid branch pipes, 61 conducting wires.
101 electrode bodies, 102 inlet tubes, 103 times liquid bend pipes, 104 inlets, 105 liquid return holes.
201 tissues, 202 ablation areas, 203 RF energies, 204 electrode jacks, 205 coagulation bands, 206 cut-off lines, 207 are cut
Except side.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, With reference to embodiment
The present invention is described in further detail.
Embodiment 1
With reference to Fig. 1-Fig. 4 (not drawing the structure chart of a pair of electrodes), the present invention includes a pair of for hemostasis and the ablation of being powered
Electrode 1, each pair of electrode 1 include that (each work pole 11 or circuit pole 12 be can be regarded as a work pole 11 and circuit pole 12
One individual electrode)；It is provided with cavity in the electrode 1, and is provided with the cooling that is used for being connected to cavity on electrode 1 and is situated between
Matter circulation inlet 104 and liquid return hole 105 (reflux of time liquid, i.e. cooling medium, cooling medium will not flow out the tip of electrode,
Wherein, cooling medium includes but is not limited to physiological saline).Since electrode 1 needs to be powered and needs to be inserted into tissue, it is anticipated that
Be that electrode is preferably made by metal, the material selected in the present embodiment be stainless-steel pipe.Electrode 1 passes through the electricity with plug
Cable is connect with radio frequency plasma host, so that RF energy flows between work pole and circuit pole.RF energy can lead to
The pedal type switch being connected with host is crossed, or adds manual switch in the hemostatic device, carries out the switch of the forms such as manual
It is controlled.
Specifically, electrode 1 (work pole 11 and circuit pole 12) is needle electrode, and needle electrode includes the electrode sheet of straight tube-like
Body 101 (it is cavity that it is internal), described electrode body 101 (i.e. a wherein steel pipe) one end is formed closed by necking down process
Tip, the other end are inlet 104；Electrode body 101 is arranged on the side wall of inlet in the liquid return hole 105, feed liquor
Mouth 104, cavity and liquid return hole 105 constitute cooling medium circulation canal.Liquid bend pipe 103 is welded with back at liquid return hole 105 (i.e. wherein
One steel pipe, but return liquid bend pipe and be not limited to choose steel pipe as selection), described time liquid bend pipe 103 is 90 ° of bendings, and bends towards feed liquor
Mouth side, it is vertical with electrode body 101 with 101 connecting pin of electrode body.The inlet 104 of electrode 1 passes through feed liquor branch pipe 41
It is connected with feed liquor house steward 4, which is connect by water inlet component (such as medical infusion lines) with liquid source, wherein feed liquor house steward
4 use " interference grafting ", and are flexible hose with feed liquor branch pipe 41, water inlet component.The liquid return hole 105 of electrode 1 passes through this time
Liquid bend pipe 103 is connected with back liquid branch pipe 51, and is connected with by returning liquid branch pipe 51 for connecting time liquid general pipeline 5 for attracting equipment,
Wherein, return liquid general pipeline 5 with return liquid branch pipe 51, return liquid bend pipe 103 use " interference grafting ", and return liquid general pipeline 5 with return liquid branch pipe 51,
Returning liquid bend pipe 103 is flexible hose.The electrode body 101 of each electrode is aggregated by the connection of conducting wire 61 has respectively
On the cable 6 of plug, the connecting portion of electrode body 101 and conducting wire 61 facilitates adaptation to penetrate on the side wall of inlet
Frequency plasma host, so that radio frequency plasma host is not required to add more output plugholes.The electrode body 101 and conducting wire 61
Junction is enclosed with the insulating layer that each electrode body 101 is isolated, and electrode body 101 can be prevented short-circuit.
The invention also includes shell, shell is put together by upper casing 2 and lower casing 3, and upper casing and lower casing are made of engineering plastics,
Inside has fixed structure, and for fixing each electrode and other structures part, if being provided with bracket 7 in lower casing 3, being used for will be each
Electrode 1 is fixed and separates.Other structures part, such as feed liquor branch pipe 41 return liquid bend pipe 103, return liquid branch pipe 51, conducting wire 61, electrode
The insulating layer etc. of ontology 101.Wherein, insulating layer extends to outside shell (can also not extend to outside shell), and insulation mode is pyrocondensation
The insulating layer that pipe pyrocondensation or insulating tape package are constituted, and insulation effect is further promoted also by AB glue sealed insulation in shell
Fruit.
Electrode body 101 has cuspidated one end and extends shell, and development length is preferably 3~10cm, between electrode 1
Spacing is preferably 5~12mm, and 101 diameter of electrode body is preferably 1.0~2mm, is not limited to above-mentioned size certainly, can basis
Actual demand is adaptively adjusted.Scale can also be set on electrode body 101, to indicate the depth of insertion tissue.It uses
When, not only electrode body 101 can be inserted into tissue and carry out deep layer hemostasis, but also electrode body 101 can be flatted against to tissue carry out table
Face hemostasis.
The ratio between the length of 101 service portion of electrode body and width are not less than 2.So-called service portion refers to that electrode body 101 can
It is inserted into the part of tissue.In order to guarantee insertion depth, the length of the service portion of electrode body 101 be at least twice of its width or
Twice of person or more.In the present embodiment, the service portion of electrode body 101 is the part being exposed to outside shell.
Further, the effect end (i.e. electrode body has cuspidated one end, exposed) of each electrode concordantly so that
Each electrode can be inserted into tissue depth, carry out deep layer hemostasis.It is also beneficial to form the hemostasis region convenient for surgical cut
The trapezoidal hemostasis region of Formation cross-section.
Further or adjacent electrode is arranged in positive eight word or adjacent electrode is in the eight words setting (effect of each electrode
Hold it is not concordant), be also beneficial to form the hemostasis region convenient for surgical cut, can Formation cross-section be in quadrangle hemostasis region.
Further, it was both parallel to each other between each electrode, each electrode effect end is also concordant, advantageously forms just
In the hemostasis region of surgical cut, the hemostasis region most beneficial for the cuboid quickly performed the operation can be formed, when practical application,
Spacing between adjacent electrode is equal.
Further, electrode body is flat column.Square column includes triangular prism, 4 square columns, 5 square columns etc., in the present invention and unlimited
System.
Hemostatic device is connect by the cable with plug with radio frequency plasma host, using foot controller to control
RF energy on-off, RF energy flow between work pole and circuit pole.Since tissue has a constant impedance, RF energy stream
Heat can be generated when through organizing, and the heat enables tissue coilin shrink, dehydration, makes vessel sealing, to realize hemostasis function
Energy.In hemostasis, electrode itself will not generate heat, and " ohm fever " generates when the heat of hemostasis flows through tissue from RF energy
Heat.
The RF energy on electrode (effect end) periphery is much larger than the RF energy of distant place, this results in the tissue of electrode perimeter
It can be more easier to be dehydrated dry and hard, if the tissue premature dehydration of electrode perimeter is dry and hard, RF energy can not be transferred to farther
Tissue is gone, then can not just stop blooding to the tissue of distant place, hemostasis range is greatly reduced.
And each electrode of the hemostasis device has the function of internal liquid circulation；When water inlet manifold accesses cooling liquid (no
It is limited to physiological saline), it returns liquid general pipeline and is connect with equipment is attracted, the inside of whole electrode can be flowed through by cooling down liquid at this time, from
And take away the heat of electrode；The temperature of electrode is then not too high (being maintained at 25 DEG C or so), so the tissue of surrounding them will not
It is dry and hard too early, it is not in " sticking phenomenon ", RF energy can transfer out at this time, enable the tissue heat production of distant place, dehydration, stop
Blood.
Embodiment 2
With reference to Fig. 1-Fig. 4 (not removing inlet tube in figure), the present embodiment and the main distinction of embodiment 1 are, this implementation
In example, electrode 1 is two pairs to arrange in a word, and work pole 11 and the setting of 12 interleaved of circuit pole.
The inlet 104 of each electrode is communicated with feed liquor house steward 4 by feed liquor branch pipe 41 respectively, the feed liquor house steward 4
It is connect by water inlet component with liquid source；The liquid return hole 105 of each electrode passes sequentially through back liquid bend pipe 103 respectively, returns liquid branch
Pipe 51 is communicated with for connecting time liquid general pipeline 5 for attracting equipment.I.e. each cooling medium circulation canal forms parallel connection.Outside enters
Cooling medium can reach simultaneously and need each electrode for cooling down, cool down much sooner, avoid " viscous knife ", cooling effect is more
It is good.The liquid return hole of each electrode is communicated with back liquid general pipeline by returning liquid branch pipe respectively, convenient for connection cooling medium circulation dress
It sets.
In order to expand hemostasis region, electrode 1 can be two pairs or more.Certainly work pole 11 and circuit pole 12 need to set in pairs
It sets, and staggered.
Tissue hemostasis had both can be inserted in the present invention, can also flat against and organizationally stop blooding.
As shown in Figure 5 and Figure 6, for being inserted into tissue hemostasis.The insertion of electrode 1 organizes the formation of electrode jack 204, after energization
Energy 203 flows between work pole 11 and reflux pole 12.Since tissue 201 has a constant impedance, RF energy flows through tissue
Heat can be generated when 201, and the heat enables tissue coilin shrink, de- liquid, makes vessel sealing, to realize hemostatic function.
The region that energy 203 passes through is ablation areas 202, and after repeatedly melting, coagulation band 205 is formed on tissue 201.With coagulation band
205 edges are cut-off lines 206 by the cutting tissue of lesion, cut side 207 and are separated with primary side by coagulation band 205, are avoided
Bleeding.Meanwhile the heat on electrode 1 has been taken away by the flowing of cooling medium, so that electrode 1 remains lower temperature
Degree, avoids sticking phenomenon.
Embodiment 3
As Figure 1-Figure 4, the difference of the present embodiment and above-described embodiment essentially consists in, and is arranged at the inlet 104
There is the inlet tube 102 for extending into cavity, the diameter of inlet tube 102 is less than the diameter of electrode body 101, and inlet tube 102 is located at
There are gaps for one end of cavity inside and the tip of electrode body 101.Using welding procedure by inlet tube 102 and electrode body
101 inlet 104 is fixed, and closes.Inlet tube 102 gos deep into inside electrode body 101, and 102 diameter of inlet tube is less than
Electrode body 101 makes cooling medium so that having the cavity for cooling media flow between inlet tube 102 and electrode body 101
Enter channel and return flow line separate, and back-flow velocity is more efficient, can take away heat more in time.
Fig. 4 is that cooling medium flows schematic diagram, circulator (water inlet component and attract equipment) driving cooling medium (including
But it is not limited to physiological saline) each feed liquor branch pipe 41 is branched to from feed liquor house steward 4, and enter each electrode body from inlet tube 102
After with electrode heat exchange occurs for 101 inside, it finally is communicated with back liquid general pipeline 5 by returning liquid bend pipe 103, returning liquid branch pipe 51, then return
It is flow to liquid source, completes one cycle.It is typically chosen and directly the cooling medium with heat is discharged, collect, without directly by it
It send to liquid source.
As shown in Figure 7 and Figure 8, for being inserted into tissue hemostasis, the influence factor of the range size in region of stopping blooding mainly is wrapped
It includes: the depth of 1. insertion tissues；2. 1 arrangement mode of electrode；3. whether electrode forms a scab.No matter electrode is a pair of or multipair, electricity
The insertion of pole 1 organizes the formation of electrode jack 204, and after energization, RF energy 203 flows between work pole 11 and reflux pole 12.By
There is a constant impedance in tissue 201, heat can be generated when RF energy 203 flows through tissue 201, and the heat enables tissue spiral egg
It is white to shrink, take off liquid, make vessel sealing, to realize hemostatic function.RF energy 203 can be in the organization internal of insertion electrode 1
The ablation areas 202 for generating substantially cuboid forms three-dimensional coagulation band 205 after repeatedly melting on tissue 201.With solidifying
Gu 205 edge of band is cut-off lines 206 by the cutting tissue of lesion, cuts side 207 and is separated with primary side by coagulation band 205,
Avoid bleeding.Meanwhile the heat on electrode 1 has been taken away by the flowing of cooling medium, so that electrode 1 remains lower
Temperature avoids sticking phenomenon, so that energy be enable to continue to export, and then generates biggish hemostasis range.
The instrument such as microwave melt needle for being currently used for deep layer ablation disappears just for the ablation of tissue of deep layer specific region
Tabetisol domain is round or oval mostly, and the ablation areas of round shape is unfavorable for cutting operation.The present invention is by by two pairs of electrodes one
Word is arranged, and has cooling medium circulation canal in each electrode, is cooled down using cooling medium to electrode 1, is made the holding of electrode 1
In lower temperature, electrode 1 is avoided to form a scab, RF energy can continue to spread to farther place, form bigger hemostasis region.
Since RF energy only transmits between electrode 1, and RF energy can be in the vertical spread of 1 line of electrode, to be formed
Flat cuboid hemostasis region, is more convenient cutting operation.
Embodiment 4
As shown in figure 5, the difference of the present embodiment and above-described embodiment essentially consists in, the liquid return hole 105 of an electrode
It is connected by connecting tube with the inlet 104 of another electrode, makes to constitute concatenated cooling medium circulation between electrode two-by-two
Channel.After series connection, it is only necessary to the inlet 104 of first electrode is communicated with feed liquor house steward 4 by feed liquor branch pipe 41, the last one
The liquid return hole 105 of electrode connects back to after liquid bend pipe 103 and is communicated with back liquid general pipeline 5 by returning liquid branch pipe 51 again.Outside enters
Cooling medium can successively reach and need each electrode for cooling down, can cool down in time, avoid " viscous knife ", cooling effect also compared with
It is good.
Embodiment 5
Due to a word arrangement needle electrode can by do not need cutting tissue also cut away, the present embodiment in order to
This problem is solved, a kind of new technical solution is proposed, it may be assumed that
As shown in fig. 6, the difference of the present embodiment and above-described embodiment essentially consists in, electrode is by carrying out heat to needle electrode
Processing, is made to needle-shaped arc-shaped electrode, and crooked radian makes according to the actual situation, and curved direction is according to actual use feelings
Condition is adjusted.The setting of needle-shaped arc-shaped electrode structure and cooling medium circulation canal refers to the set-up mode of needle electrode.Such as
Setting is a pair of (being made of work pole and circuit pole), and two pairs, even more pairs of electrodes.
The arrangement mode of each needle-shaped arc-shaped electrode specifically includes that 1. 1 word intervals arrangement (i.e. each needle-shaped arc-shaped electrode
Curved opening towards the same side)；2. be intervally arranged (curved opening of i.e. each needle-shaped arc-shaped electrode towards center)；3. multiple groups
Be open opposite be intervally arranged；4. circular arrangement (curved opening of i.e. each needle-shaped arc-shaped electrode towards center) etc..
This needle-shaped arc-shaped electrode is more adapted to tissue to be cut, and the needle electrode that can be avoided word arrangement will
Pathological tissues are handled together with non-lesion tissue, will not destroy the non-lesion tissue of human body, and practical function is also more preferable.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (10)
1. a kind of hemostatic device, including at least a pair of electrodes, it is characterised in that: each pair of electrode includes that a work pole and one return
Lu Ji；The electrode is provided with inlet, liquid return hole, and is connected to inlet and liquid return hole and constitutes cooling medium circulation canal
Cavity.
2. a kind of hemostatic device according to claim 1, it is characterised in that: the electrode includes the electrode sheet of straight tube-like
Body, described electrode body one end are closed tip, and the other end is inlet, are the cavity of electrode between tip and inlet；
Electrode body is arranged on the side wall of inlet in the liquid return hole.
3. a kind of hemostatic device according to claim 2, it is characterised in that: be provided at the inlet and extend into cavity
Inlet tube, the diameter of inlet tube is less than the diameter of electrode body, and inlet tube is located at one end and the electrode body of cavity inside
There are gaps at tip.
4. a kind of hemostatic device according to claim 3, it is characterised in that: the inlet tube and electrode body are coaxial.
5. a kind of hemostatic device according to claim 1, it is characterised in that: the electrode is needle-shaped and arc-shaped.
6. a kind of hemostatic device according to claim 1, it is characterised in that: the effect of each electrode is held level with both hands together.
7. a kind of hemostatic device according to claim 1 or 6, it is characterised in that: it is parallel to each other between each electrode,
Or adjacent electrode is arranged in positive eight word or adjacent electrode is in eight words setting.
8. a kind of hemostatic device according to claim 1, it is characterised in that: the inlet of each electrode passes through respectively
Feed liquor branch pipe is communicated with feed liquor house steward；The liquid return hole of each electrode is communicated with back liquid general pipeline by returning liquid branch pipe respectively.
9. a kind of hemostatic device according to claim 1, it is characterised in that: electrode by liquid return hole with it is another
The inlet of a electrode is connected, and makes to constitute concatenated cooling medium circulation canal between electrode two-by-two.
10. a kind of hemostatic device according to claim 2, it is characterised in that: it further include the shell for encapsulated electrode, and
Extend shell in the tip of the electrode body.
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| CN201910669993.4A CN110279466A (en) | 2019-07-23 | 2019-07-23 | A kind of hemostatic device |
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| CN201910669993.4A CN110279466A (en) | 2019-07-23 | 2019-07-23 | A kind of hemostatic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110755151A (en) * | 2019-11-19 | 2020-02-07 | 绵阳立德电子股份有限公司 | Blood coagulation electrode |
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