CN101327147B - High frequency treatment tool - Google Patents
High frequency treatment tool Download PDFInfo
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- CN101327147B CN101327147B CN200810145019XA CN200810145019A CN101327147B CN 101327147 B CN101327147 B CN 101327147B CN 200810145019X A CN200810145019X A CN 200810145019XA CN 200810145019 A CN200810145019 A CN 200810145019A CN 101327147 B CN101327147 B CN 101327147B
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- flexible cover
- cutter
- flexible
- needle
- partition component
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Abstract
A high frequency treatment tool comprises: a flexible sheath; a treatment tool main body comprising a flexible cord and a high frequency knife on a tip end of the flexible cord, provided inside the flexible sheath; and first and second guide collars inside the flexible sheath, wherein the first guide collar is disposed closer to a base end side than the second guide collar, the first guide collar comprises a first guide surface that guides the high frequency knife toward a central axis line of the flexible sheath, the second guide collar comprises an insertion hole which the high frequency knife is stuck out from or withdrawn into, and comprises a second guide surface that guides the high frequency knife toward the insertion hole, a stopper member that restricts a sticking-out length of the high frequency knife from the insertion hole is attached to the treatment tool main body.
Description
The application is to be on May 23rd, 2006 applying date, and application number is 200610084873.0, and denomination of invention is divided an application for " high-frequency treatment apparatus ".
Technical field
The present invention relates in order to insert (insert) in treatment instrument for endoscope inserts passage, the incision etc. of carrying out the pathological changes membranous part is disposed and is used high-frequency treatment apparatus.
Background technology
Utilizing splanchnoscopy under the situation of finding pathological changes portion such as tumor on the mucosa part of the body cavity walls of esophagus, stomach, duodenum, large intestine etc., this disposal of position of using high-frequency treatment apparatus to excise this pathological changes mucosa.Under this situation, in order to ensure the safety of disposing, dispose under the observation of endoscope, for this reason and the high-frequency treatment apparatus that uses is inserted in treatment instrument for endoscope and inserts in the passage, importing to needs the position of disposing.At this, in body cavity walls, there is tela submucosa in the bottom of mucous layer, the flesh layer is covered by this tela submucosa.And the disposal that the use high-frequency treatment apparatus cut and removed the pathological changes mucous layer requires to require again the flesh layer not to be produced a bit damage not at the remaining pathological changes mucous layer of pathological changes portion.
The high-frequency treatment apparatus that is used in the incision of mucous layer is done to become following structure: constitute by being installed in the flexible cover by the high frequency cutter that the electrod assembly with bar-shaped portion constitutes, base end part binding at flexible cover has operating mechanism, can make the high frequency cutter pass in and out from the front end of flexible pipe by the remote manipulation of this operating mechanism is controlled.By to from the outstanding high frequency cutter energising of flexible pipe, cut mucosa thereby just can burn.
As the structure of the electrod assembly that constitutes the high frequency cutter, the needle-like cutter that extends bar-shaped electrod assembly as the crow flies and constitute is arranged, big footpath electrode part is set or the front end warpage is formed the hook-shaped cutter that hook portion constitutes for L word shape roughly with linking by front end at bar-shaped electrod assembly.The needle-like cutter can be operated in the mode that pierces through mucosa, perhaps by moving horizontally or the swinging operation electrod assembly cuts mucosa etc.On the other hand, hook-shaped cutter is by hooking the tissue of mucosa etc. with the hook portion of front end, thereby the action of mode of drawing in the insertion section side of endoscope is cut.
As described above, when the high frequency cutter is switched on, guarantee that the high frequency cutter keeps contactless state reliably with respect to the flesh layer.Under the situation of using the needle-like cutter, this needle-like cutter spacing is in the place ahead of flexible cover, and thrusts in mucosa, so can not utilize the field of view of endoscope to observe the front end of needle-like cutter sometimes when disposing.Thereby, if can not correctly control the needle-like cutter from the outstanding length of flexible pipe with and direction, then can not guarantee the safety of disposing.
With respect to this, hook-shaped cutter is with by hook-shaped cutter being hooked in mucosa under the observation of endoscope etc., then on one side to this hook-shaped cutter circulation high frequency electric, is pulled into treatment instrument on one side and inserts the interior mode of passage and move, and cuts mucosa.Thereby, because during the hook-shaped cutter of operation, can the time be everlasting and carry out the operation of the leading section of this hook-shaped cutter under the observation of endoscope, do not operate so can when "on" position, not be contacted with under the situation of flesh layer.
But, using under the situation of hook-shaped cutter,, must guarantee the stability of the fore-end of hook-shaped cutter in order successfully to hook this operation of organizing of mucosa etc.Therefore, the spy opens the high-frequency treatment apparatus that the 2004-313537 communique has proposed to do to become mechanism this structure of the stability with the hook-shaped cutter when guaranteeing to move.This spy opens the front end that the high-frequency treatment apparatus of 2004-313537 communique forms at flexible cover electric insulation part is installed, be provided with open-work at this electric insulation part, and the bar-shaped position that will constitute the electrod assembly of hook-shaped cutter is inserted in this open-work, in addition, the hook portion of front end can with the front end outer surface contact separation of electric insulation part.Work becomes following structure: make the length of electrod assembly from the outstanding regulation of flexible cover when energising, poor being in the Min. in footpath between the aperture by making open-work and the external diameter of electrod assembly, and the outstanding length of restriction electrod assembly, stably keep electrod assembly.
Again, sometimes use described electrod assembly to implement to cut this disposal of pathological changes portion during take place hemorrhagely, therefore the drawback that can not confirm pathological changes portion is arranged.Therefore, by on electric insulation part, forming the different opening of open-work with the insertion electrod assembly, perhaps make open-work be cross shape to triangle, form the liquid outflow portion that the bar-shaped portion of electrod assembly can not enter.Can be connected with syringe at the base end part of flexible cover, in this syringe, fill normal saline, by operating this syringe, and towards hemorrhage from liquid outflow portion ejection normal saline, thereby wash.
Yet, with the high frequency cutter during as hook-shaped cutter, operate and make this hook-shaped cutter of utilization hook mucosa or tela submucosa, and in inserting passage, treatment instrument draws in hook-shaped cutter, under this state,, hook-shaped cutter cuts off tissue by being switched on, then insert passage from treatment instrument once more and derive hook-shaped cutter, so repeat above operation.Thereby, the efficiency that can not obtain operating, rapid property, thus in the disposal of removing the pathological changes mucosa, need the long time, and the burden of person under inspection's misery and patient with operation increases just because of this.
On the other hand, if use the needle-like cutter, then can be implemented in the efficiency of the operation of disposing, rapid property.But, under the situation of using the needle-like cutter, for safety and the reliability that realizes disposing, when disposing with the needle-like cutter beyond, it is disposed at the inside of flexible cover, and when disposing, must restriction from the outstanding length of flexible cover.Again, for example under the situation of excision pathological changes mucosa, need operate making the needle-like cutter not be contacted with the flesh layer of the bottom that is positioned at mucosa, thereby make not and the tissue of health to be produced damage because of the front end of needle-like cutter.
Again, the hook portion of high frequency cutter more is positioned at the place ahead than the electric insulation part on the front end that is arranged on flexible cover, is always the state that exposes externally.Thereby, for example insert operating period in the passage etc. being inserted in treatment instrument, if error and the energising of counter electrode parts, the problem of damage vias inner walls etc. is arranged also then.Again, under the situation of atomizing of liquids, because hook portion is positioned at the place ahead of this injection path, so also there is atomizing of liquids to become problems such as obstacle can not correctly spray towards the purpose position because of hook portion.
Summary of the invention
The present invention makes in view of above point just, and it is a kind of when not disposing that its purpose is to provide, and the high frequency cutter is not exposed to the outside, can operate safely, and the high-frequency treatment apparatus that can infuse effectively to the position of hope.In order to reach described purpose, first aspect present invention provides a kind of high-frequency treatment apparatus, comprise: can be inserted in treatment instrument for endoscope and insert the interior flexible cover of passage, constitute with the inside that is arranged at this flexible cover and in the treatment instrument main body that the front end of flexible flexible cord is provided with the high frequency cutter that high frequency electric applies, it is characterized in that, in described flexible cover, the described high frequency cutter that is used to lead is installed, respectively by electric insulation part constitute first, second guiding collar, the front end face of described second guiding collar is disposed at the position roughly same with the front end face of described flexible cover, in addition, described first guiding collar is configured to more rely on base end side than this second guiding collar, described first guiding collar has first spigot surface, described first spigot surface leads the inner face of described high frequency cutter from described flexible cover towards the direction of the central axis of this flexible cover, be formed with the patchhole that makes described high frequency cutter turnover at described second guiding collar, and have second spigot surface of described high frequency cutter towards this patchhole guiding, these are first years old, second spigot surface utilizes spacer portion to be spaced from each other, and described second guiding collar is formed with the fluid supply passageway that connects in the flexible cover on the inner peripheral than described first spigot surface relies on the position of outer circumferential side at least, in described treatment instrument main body the restraint parts of restriction from the outstanding outstanding length of described patchhole is installed.Because it is long to utilize the outstanding length of the described high frequency cutter that these restraint parts control to make to become the thickness of specific viscosity rete, and lack than mucous layer and submucosal aggregate thickness, so below normally several mm, 1～3mm more specifically.
Be installed in the flexible cover and also can for example form, but then preferably constitute thermostability etc. with pottery as if considering with synthetic resin by first, second guiding collar that electric insulation part constitutes.And in flexible cover, the high frequency cutter more relies on base end side by being pulled into than first guiding collar, even then switch on because of maloperation, also can not bring special fault.The high frequency cutter is inserted in the patchhole that is arranged on second guiding collar, thereby is projected into the outside.For the high frequency cutter that stably keeps deriving from this patchhole, the footpath that reduces as far as possible between the external diameter of the aperture of patchhole and high frequency cutter is poor, makes gap location between them in Min..
Need under the state of the base end side that the high frequency cutter is pulled into patchhole, lead to the high frequency cutter towards patchhole, but if only bring into play the function that the high frequency cutter is led, then can consider to use single guiding collar, and form the spigot surface of taper from its outer circumferential side to patchhole.But, because on guiding collar, be formed with the fluid supply passageway, so following drawback is arranged: be connected to during spigot surface is directed at the front end of high frequency cutter, enter in this fluid supply passageway, thereby locking can not import to and inserts in the hole on this position.In order to prevent the generation of such situation, do to become towards the structure of patchhole with two stage guiding electrod assemblies.At first, on the vertical section of flexible cover, make the inner peripheral portion that is formed at first spigot surface on first guiding collar, identical with the position of fluid supply passageway on being formed at second guiding collar, perhaps more be positioned at the inboard than it.The fluid supply passageway is as being arranged at the through hole on second guiding collar and forming, but in order to increase flow path area, and preferably one or more groove with the degree of depth that has regulation from outer circumferential side forms.Though any situation, in the vertical section of flexible cover, the fluid supply passageway all be formed at the first spigot surface position overlapped on.
Being formed at second spigot surface on second guiding collar is used to make the front end butt of the electrod assembly that is directed to along first spigot surface and carries out the transition to and insert in the hole.Thereby the outer peripheral edges quality award from the ministry choosing of second spigot surface is roughly consistent with the inner peripheral portion of first spigot surface, perhaps overlapping to a certain degree two spigot surfaces.But, even what gap is arranged because of shape of high frequency cutter etc., also can carry out the transition to second spigot surface on first, second spigot surface from first spigot surface.
Be used for being used for forming the space of regulation between end face and being provided with at first, second spigot surface in the spacer portion that separates first, second spigot surface on the axis direction.This spacer portion can constitute with parts independently, but for example can spacer portion be set integratedly with first guiding collar, makes that its arbitrary end face from first guiding collar or second guiding collar is outstanding.As the shape of this spacer portion, simple in structure and maintenance high strength is preferably formed to circular for it, and the preferred outer peripheral face that is arranged at first guiding collar that links.But,, then be not defined in described structure especially if separate the structure of first spigot surface and second spigot surface.At the outer peripheral face that spacer portion is formed at first guiding collar, the outer peripheral face that the fluid supply passageway is done to become at second guiding collar forms under the situation of slotted structure again, and spacer portion and fluid supply passageway are overlapping.Groove has from spacer portion to the inboard degree of depth under this situation.
The restraint component configuration is in the base end part of high frequency cutter or near position it, but can form with the endless member than the more big footpath of high frequency cutter.The outside dimension of these restraint parts need be littler than the interior week of first spigot surface.And, the restraint parts also can constitute contact or be located away from second spigot surface that becomes taper of second guiding collar, but the outer peripheral edges of second spigot surface than the little situation of the inner peripheral of first spigot surface under, in second guiding collar, the restraint parts also can contact or be located away from the tabular surface on the outside that is formed at this second spigot surface.
Thereby, in described high-frequency treatment apparatus, preferably be arranged on described first guiding collar to link the mode that is provided with described spacer portion, described again restraint parts are installed on the base end part of described high frequency cutter, constitute with the parts of external diameter than the internal diameter circlet shape of described first spigot surface.Again, a groove to a plurality of positions that connects on axis direction that forms on the outer peripheral face of preferred described fluid supply passageway by described second guiding collar constitutes, at least a portion of this groove is in the inboard of described spacer portion, more relies on outer openings than the abutting part of described second guiding collar of described restraint parts butt.
By adopting above structure, when not disposing with high-frequency treatment apparatus, this high frequency cutter does not expose externally, thereby can operate safely, plays the effect of fluids such as can supplying with normal saline as required and effectively etc. again.
In order to reach described purpose, second aspect present invention provides a kind of high-frequency treatment apparatus, the treatment instrument main body that has the electrod assembly of the linearity that can apply high frequency electric at the front end of flexible flexible cord is installed in the inside of flexible cover, utilize treatment instrument for endoscope to insert passage and be inserted in the body cavity, it is characterized in that, at described flexible cover internal fixation the partition component that insertion is provided with the patchhole that makes described electrod assembly turnover is installed, make the front end face of described partition component become the roughly same position of front end face with this flexible cover, be provided with the restraint parts of the described electrod assembly of restriction in described treatment instrument main body from the outstanding length of described patchhole, described restraint parts can or separate with the cardinal extremity contacts side surfaces of described partition component, be formed with the liquid jet path that is used to spray from least one position of the liquid of the internal feed of described flexible cover at described partition component, be provided with the transfusion path that all is connected on the position of rotation arbitrarily at it at described restraint parts with described liquid jet path.
As electrod assembly, use the cutter that becomes rectilinear form, i.e. the needle-like cutter.This needle-like cutter is inserted in the flexible cover, when utilizing high-frequency treatment apparatus to dispose practically beyond, in flexible cover, accommodate this electrod assembly reliably.And, when disposing, the projection electrode parts, but limit the outstanding length of this electrod assembly.In flexible cover, be provided with partition component, be provided with the restraint parts, only make these restraint parts be connected to position on the partition component, projection electrode parts at the treatment instrument main body side that is provided with electrod assembly.At this, partition component and restraint parts all constitute with hard part, thereby, can not make the length of the axis direction that is fixedly set in the partition component in the flexible cover long especially in order in treatment instrument for endoscope insertion passage, to insert high-frequency treatment apparatus reposefully.High-frequency treatment apparatus is the flexible part of long size, flexible cover and treatment instrument main body are because of the high-frequency treatment apparatus of reeling annularly, under the state of bendable endoscope insertion section, be inserted in this treatment instrument again and insert and wait in passage and produce relative position and depart from, thereby electrod assembly is indexed to than the partition component that is provided with patchhole and more relies on base end side.That is, electrod assembly is shed to the inboard from patchhole.Thereby, when disposing, must operate making electrod assembly enter patchhole.From partition component projection electrode parts the time, in order stably to keep electrod assembly, poor as if the footpath between the external diameter of internal diameter that reduces patchhole and electrod assembly, then electrod assembly produces position deviation with respect to patchhole, inserts in the hole thereby can not enter into this.Can electrod assembly be imported to insert in the hole by introducing portion is set on partition component, but in order further to make electrod assembly to reliable insertion that insert in the hole, the footpath that reduces between the internal diameter of the external diameter of restraint parts and flexible cover is poor, moving more than the axis direction of restriction electrod assembly in flexible cover.Thereby the restraint parts move in the mode of sliding with respect to the inwall of flexible cover basically.Consequently, in flexible cover, electrod assembly roughly remains on its core position, inserts in the hole so be directed to reliably.
For example, during disposing, produce under the hemorrhage situation, wash hemorrhage portion by the liquid that sprays normal saline etc. at membranous part etc.Therefore, the inside of flexible cover as the transfusion usefulness the path and utilize.That is, in flexible cover, will and constitute gap between the flexible flexible cord of treatment instrument main body as the path of transfusion usefulness.In the inside of flexible cover, be attached with the restraint parts at the front end of flexible flexible cord, the leading section at flexible cover is set with partition component again.On partition component, be formed with liquid jet path, on the restraint parts, be formed with the transfusion path again.Partition component must have necessary contact area for the inner surface that is firmly fixed at flexible cover.Therefore, the size of access is restricted.On the other hand, be provided with the restraint parts, for the posture of stabilized electrodes parts, increase the external diameter of these restraint parts, but these restraint parts also needn't necessarily be contacted with flexible cover with wider area at the base end side of this partition component.
As known from the above, the liquid jet path that is formed on the partition component can form with groove or open-work.At this, under situation about forming, be formed at outer circumferential side with groove.Liquid jet path can be 1 position, and preferably a plurality of positions are for example about 3 positions.With regard to the transfusion path on being formed at the restraint parts, can form with groove, also can form with open-work.Forming under the situation of transfusion path with open-work, the position of its radial direction is and the liquid jet groove position overlapped of partition component that the pitch interval on the circumferencial direction is made the interval littler than the width of the circumferencial direction of liquid jet path.And the aperture of open-work is preferably big as far as possible.Also can form the transfusion path with the groove on the peripheral part that is formed at the restraint parts.At this, in the inside of flexible cover, because as long as the restraint parts are the position of the axis direction of stabilized electrodes parts, so the restraint parts did not need wide to the slide area of flexible cover.Therefore, as long as it is roughly the same to constitute the degree of depth of groove of the degree of depth of groove of transfusion path and partition component, and the width of circumferencial direction gets final product greatly than the width of the circumferencial direction of the spacing of tanks of the groove of partition component.And the groove that is formed on partition component and the restraint parts can be identical number, also can be different numbers, for example, the groove of the partition component side at 3 positions can be set, and the groove of the restraint component side at 4 positions is set.That is, described liquid jet path and transfusion path preferably form with a plurality of grooves on the peripheral part that is arranged at described partition component and restraint parts or open-work respectively.
By adopting above structure, just can use the needle-like cutter to carry out the disposal such as incision of mucosa safely, can be steadily, reliably and effectively dispose, and then can be towards atomizing of liquids correctly such as hemorrhage.
Description of drawings
Fig. 1 is the integrally-built figure of the high-frequency treatment apparatus of expression one embodiment of the present invention;
Fig. 2 be Fig. 1 want portion's amplification profile;
Fig. 3 is the amplification profile of the fore-end of treatment instrument main body, is the figure that expression needle-like cutter moves to this state of position of first guiding collar;
Fig. 4 is expression needle-like cutter advances to second guiding collar by the position of first guiding collar from the state of Fig. 3 profile position This move state, identical with Fig. 3;
Fig. 5 is that expression needle-like cutter is derived This move profile state, identical with Fig. 3 from the patchhole of second guiding collar;
Fig. 6 is the X-X profile of Fig. 4;
Fig. 7 is that expression is inserted the outside drawing that passage is derived this state with the high-frequency treatment apparatus shown in the one embodiment of the present invention from treatment instrument for endoscope;
Fig. 8 is that expression uses high-frequency treatment apparatus to cut the Action Specification figure of this state;
Fig. 9 be Fig. 1 want portion's amplification profile;
Figure 10 is the amplification profile of the fore-end of treatment instrument main body;
Figure 11 is a profile that represent under the state of projection electrode parts, identical with Figure 10;
Figure 12 is that expression is arranged at the liquid jet path groove of partition component and the key diagram of the position relation of the transfusion path groove that is arranged at the restraint parts;
Figure 13 is the front view of variation that expression is arranged at the transfusion path of restraint parts.
The specific embodiment
[first embodiment]
Below, based on description of drawings first embodiment of the present invention.At first, Fig. 1 represents the overall structure of high-frequency treatment apparatus, and Fig. 2 represents that it wants portion's enlarged drawing.And then Fig. 3 to Fig. 5 is illustrated in the section of the fore-end of the high-frequency treatment apparatus under each different operating state.
At first, in Fig. 1 and Fig. 2, the 1st, high-frequency treatment apparatus, this high-frequency treatment apparatus 1 has the flexible cover 2 of long size, and linking at this flexible base end part has connection tube 3, and then in the other end binding of this connection tube 3 operating mechanism 4 is arranged.Operating mechanism 4 is by being linked to body shaft 4a on the connection tube 3, constituting with the slide block 4b that is embedded in this body shaft 4a and can be provided with slidably on the axis direction of body shaft 4a.On slide block 4b, link the base end part that is provided with the flexible flexible cord 11 that constitutes treatment instrument main body 10.
Shown in Fig. 3 was clear and definite, flexible flexible cord 11 constituted for example peripheral part of the 11a of conductor wire portion is inserted in the insulation coating member 11b, has flexible at least on bending direction.The base end part of the 11a of conductor wire portion of this flexible flexible cord 11 forms contact portion 12 from giving prominence to specific length with the linking part of slide block 4b.And this contact portion 12 can be connected on the not shown high intensity light source with loading and unloading.
The flexible flexible cord 11 that constitutes treatment instrument main body 10 passes the inside of connection tube 3, extension flexible cover 2 in from the installation portion to slide block 4b.And, can be provided with needle-like cutter 13 highlightedly from the leading section of flexible flexible cord 11.Needle-like cutter 13 preferably is made of the bar-like member of hard, and be electrically connected on the wire portion 11a of flexible flexible cord 11, and the length of its regulation is exposed externally, and this partial action is in in-vivo tissue during energising, burn and cut this tissue, thus disposal such as can carry out that mucosa is peeled off.
20 is first guiding collars, and 30 is second guiding collars.In these first, second guiding collars 20,30, at least the second guiding collar 30 is with particularly pottery formation of electric insulation part.On the other hand, with regard to first guiding collar 20, also can need not to be electric insulation part, but can constitute, also can constitute by the conductive component of metal etc. by electric insulation parts such as pottery, synthetic resin.First guiding collar 20, its external diameter have the outside dimension bigger a little than the internal diameter of flexible cover 2, and are installed on the inside of this flexible cover 2, and again in flexible cover 2, this second guiding collar 30 is positioned at than first guiding collar 20 front more.And the front end face of second guiding collar 30 is disposed at the position roughly same with the front end face of flexible cover 2.
On first guiding collar 20, be formed with first spigot surface 21.This first spigot surface 21 is the faces that constitute to the conical surface of inclination in tiltedly with predetermined angular towards front by from the base end side of flexible cover 2, and this first spigot surface 21 forms width circular that has regulation from the peripheral part of first guiding collar 20 towards the inboard.And the front binding at the position that is formed with first spigot surface 21 is provided with spacer portion 22.This spacer portion 22 has the external diameter identical with the peripheral part of first guiding collar 20, and is the thin endless member with thickness of the external diameter bigger than the inner peripheral of first spigot surface 20.
In second guiding collar 30, on the position of the central axis of flexible cover 2, be provided with patchhole 31.The needle-like cutter 13 that is arranged on the front end of flexible flexible cord 11 can be loaded and unloaded in this patchhole 31.Thereby the internal diameter of patchhole 31 is bigger than the external diameter of needle-like cutter 13, but poor by reducing its footpath, makes not produce the gap basically, and the outstanding length from patchhole 31 that makes needle-like cutter 13 again is below the number mm, for example about 1～3mm.Consequently, if from the outstanding needle-like cuttves 13 of patchhole 31, then this needle-like cutter 13 remains stable status under forward travel state, can be because of the crooked or distortion of effect of external force etc.And then the length of the axis direction of second guiding collar 30 of needle-like cutter 13 also becomes important key element on the stabilisation of the needle-like cutter of realizing giving prominence to from patchhole 31 13.Thereby the length setting of patchhole 31 is to be necessary size concerning needle-like cutter 13 stable.And then the end face in the side of facing with first guiding collar 20 of second guiding collar 30 is formed with second spigot surface 32 towards patchhole 31 guiding needle-like cuttves 13.
For the leading section that makes needle-like cutter 13 first spigot surface 21 from first guiding collar 20 carries out the transition to second guiding collar 30 reliably, it is as follows that the peripheral part of second spigot surface 32 wishes to be set as: when the axis direction of flexible cover 2 is observed, extend to the outside from the inner peripheral of first spigot surface 21.But, because 13 its front ends of needle-like cutter as shown in the figure become roughly hemisphere face shape, so also can be in the gap below the radius length that produces needle-like cutter 13 between the outer peripheral edges of the inner peripheral of first spigot surface 21 and second spigot surface 32.
In the treatment instrument main body 10 that includes flexible flexible cord 11 and needle-like cutter 13, the transition part between needle-like cutter 13 and the flexible flexible cord 11 is provided with restraint parts 14.These restraint parts 14 are made of the cyclic parts than the more big footpath of internal diameter of the external diameter of needle-like cutter 13 and patchhole 31, in the periphery of needle-like member 13, are fixedly set in the leading section of insulation coating member 11b.Restraint parts 14 preferably in second guiding collar 30, can contact with the peripheral part transition from this second spigot surface 32 or isolating par.Again, the outside dimension of restraint parts 14 is made as the size of the inner peripheral of first spigot surface 21 that can pass through first guiding collar 20.
The outstanding length of restraint parts 14 restriction needle-like cutter 13 front end faces (forming and the roughly same face of second guiding collar 30) from flexible cover 2, as described later, its outstanding to greatest extent length is when the front end face of flexible cover 2 is connected to mucomembranous surface, be more than the gauge of mucous layer, and do to become mucous layer and below the submucosal aggregate thickness.Thereby the preferred outstanding length of needle-like cutter 13 changes corresponding to the position that utilizes high-frequency treatment apparatus 1 to dispose.
And then this high-frequency treatment apparatus 1 has for example fluidic feed mechanism of normal saline etc.This fluid supply mechanism has the tubing connection portion 3a that is arranged on the connection tube 3, can be connected with the transfusion pipe arrangement 6 that comes from transfusion jar 5 on this tubing connection portion 3a with loading and unloading.And,, be provided with the switching mechanism 7 that foot switch etc. opens and closes stream at this transfusion pipe arrangement 6 midway, carry out the supply control of normal saline.Thereby, be formed on the inside that is linked to the flexible cover 2 on the connection tube 3, that is, the inner surface of flexible cover 2, and the circular gap that is inserted between the outer surface of the treatment instrument main body 10 in the inside of this flexible cover 2 bring into play function as the transfusion path.Again, the flexible flexible cord 11 of treatment instrument main body 140 is by connection tube 3 and be inserted among the body shaft 4a, but in this connection tube 3, around flexible flexible cord 11 seal member 15 is installed, and makes fluid not go out in operating mechanism 4 side leakages.
The front end of fluid supply passageway is at the bonding part opening of the flexible cover 2 and second guiding collar 30.That is, be provided with groove 33 via the total length of its axis direction at the outer peripheral face of second guiding collar 30.This groove 33 is formed on 1 to a plurality of positions on the circumferencial direction of second guiding collar 30, for example as shown in Figure 6, uniformly-spaced be formed on 3 positions in a circumferential direction.And the degree of depth of groove 33 extends to the inboard from the inner peripheral surface that is formed on the spacer portion 22 on first guiding collar 20, and in flexible cover 2, the relative spacing portion 22 in the groove 33 relies on inboard part opening often.But, the inner peripheral of the trench bottom of groove 33 and first spigot surface 21 is roughly the same, perhaps, amass with this passage sections that just can increase the fluid supply passageway to extend to the inboard from the inner peripheral of first spigot surface 21 than the size of its big radius part that is equivalent to needle-like cutter 13.
And then first, second guiding collar 20,30 need not remain and come off from flexible cover 2.Particularly, because when the outstanding needle-like cuttves 13 from patchhole 31, the front end pushing guiding collar 20,30 of needle-like cutter 13 is so guiding collar 20,30 by forced to move, but can stably keep first, second guiding collar 20,30.Therefore, the external diameter of first guiding collar 20 is bigger slightly than the internal diameter of flexible cover 2, and this first guiding collar 20 is installed as the flexible cover 2 of expansion.Again, the outer peripheral face of second guiding collar 30, base end side are maximum diameters, and front is path, and pars intermedia becomes their intermediary external diameters, is formed with stage portion 30a, the 30b of vertical direction with this outer surface at second guiding collar 30.And the external diameter of the minor diameter part of this second guiding collar 30 diameter with the inner peripheral surface of flexible cover 2 under free state at least is identical, perhaps big than it.In addition, for these first, second guiding collars 20,30 are fixed in the flexible cover 2 more firmly, can use adhesive securement between them.And then the outer peripheral face that also can constitute at these guiding collars 20,30 is provided with the threaded portion, is inserted in the flexible cover 2 thereby screw togather.
By such formation, when operation needle-like cutter 13, push the power effect of first guiding collar 20 and second guiding collar, 30 these directions towards the front end of flexible cover 2, the fastening force that but flexible cover 2 is produced is with respect to these first, second guiding collar 20,30 effects, and the inner surface of the engaging-in flexible cover 2 of stage portion 30a, 30b, consequently, can prevent reliably that second guiding collar 30 from coming off.
The high-frequency treatment apparatus 1 of present embodiment constitutes as described above, as shown in Figure 7, the treatment instrument that utilization is arranged on the endoscope insertion part S with the W of observation portion inserts channel C, and be inserted in the body cavity of for example esophagus, stomach, duodenum, large intestine etc., when having the pathological changes mucosa on this body cavity walls, remove this this disposal of pathological changes membranous part and use in order to implement to cut and peel off.At this, observation at the W of observation portion by having utilized endoscope insertion part S, and when finding on mucosa, there is pathological changes portion, peel off and remove the mucosa in the zone of the regulation that includes this pathological changes portion, but, preferably, this pathological changes mucosa makes its protuberance by being carried out local injection as the stage before it.
Being inserted in treatment instrument at high-frequency treatment apparatus 1 inserts in the channel C, stage before beginning to dispose, make the needle-like cutter 13 that constitutes treatment instrument main body 10 become following state: be pulled into flexible cover 2 the inboard, inside, more rely on the position of base end side than first guiding collar 20 at least, preferably be pulled into than it and more fully rely on inboard position.With this, even since in treatment instrument main body 10 with ring-type rollback high-frequency treatment apparatus 1, make again and under the state of endoscope insertion part S bending high-frequency treatment apparatus 1 is inserted in treatment instrument and inserts in the channel C, cause in flexible cover 2, causing under the situation that relative position departs from, needle-like cutter 13 also is positioned at the inside of flexible cover 2 reliably, remains and is not exposed to the outside.Thereby, even error and drop into high frequency electric source causes high frequency electric to flow in needle-like cutter 13, do not contact, so be safe with other object etc. yet.
If insert the fore-end that channel C derives high-frequency treatment apparatus 1 from treatment instrument, then operate the operating mechanism 4 of high-frequency treatment apparatus 1, make needle-like cutter 13 outstanding from the front end of flexible cover 2.At this moment, under the situation that needle-like cutter 13 departs from respect to the central axis of flexible cover 2 most, the front end of needle-like cutter 13 contacts with the inner surface of flexible cover 2.If under this state, operating operation mechanism 4 makes needle-like cutter 13 be derived from the front end that treatment instrument inserts channel C, and then the leading section of needle-like cutter 13 slides along the inner surface of flexible cover 2, as shown in Figure 3, be connected to first spigot surface 21 that constitutes first guiding collar 20.Because first spigot surface 21 is corresponding to sloping inwardly towards the place ahead, thus the front end of needle-like cutter 13 on this first spigot surface 21, slide, thereby rely on the direction of the central part of flexible cover 2 reliably.Form the circular conical surface towards medially because this first spigot surface 21 becomes from the inner surface of flexible cover 2, move so on this first spigot surface 21, slide reposefully.
The front end of needle-like cutter 13 is if pass through the inner peripheral of first spigot surface 21 of first guiding collar 20, then towards second guiding collar 30.At this, on second guiding collar 30, be formed with second spigot surface 32, because this second spigot surface 32 is overlapped in first spigot surface 21, perhaps between them, be formed with the gap below the radius of needle-like cutter 13, so as shown in Figure 4, the front end of needle-like cutter 13 is directed to this second spigot surface 32 reliably, thereby is introduced in the patchhole 31.
As shown in Figure 5, the front end of needle-like cutter 13 advances as for following position, that is: on this position, restraint parts 14 disposed thereon are connected to the position on every side of patchhole 31, more particularly, than the tabular surface of second spigot surface, 32 more laterals, after this needle-like cutter 13 can further not given prominence to.The outstanding length of the needle-like cutter 13 of this moment connects mucous layer for when the front end face with the flexible cover 2 of high-frequency treatment apparatus 1 and second guiding collar 30 is connected to mucomembranous surface, but and no show be positioned at the length of the flesh layer of submucosal bottom.
Thereby, as shown in Figure 8, with to tela submucosa local injection normal saline etc. in advance, thereby tela submucosa protuberance, mucous layer is disposed from the mode that the flesh layer separates significantly, is connected under the state of mucous layer, as mentioned above at the front end of flexible cover 2 and the front end face that is arranged at second guiding collar 30 of its inside, the needle-like cutter 13 that constitutes treatment instrument main body 10 is derived from flexible cover 2, thrust mucous layer.Because needle-like cutter 13 inserts with respect to the patchhole 31 of second guiding collar 30 almost very close to each otherly, so, also can not fracture or bending even this needle-like cutter 13 is thinner cuttves.And, make needle-like cutter 13 thrust inside in mucous layer, then burn mucous layer by the circulation high frequency electric, but as long as the front end face of flexible cover 2 is connected to mucomembranous surface, even then, can not damage the flesh layer yet, and can cut mucous layer reliably to 13 energisings of needle-like cutter.
After cutting mucous layer,, utilize from the outstanding needle-like cutter 13 of the front end of flexible cover 2 and cut off submucosal fiber like this, carry out mucosa with this and peel off in order to peel off mucous layer from the flesh layer.And, hemorrhage as if having when the incision of carrying out described mucous layer and peeling off, then spray physiological saline and so on liquid, the flushing bleeding part towards this hemorrhage from the transfusion pipe arrangement 6 that is connected on the tubing connection portion 3a.Consequently, the field of view from the W of observation portion of endoscope insertion part S is good.
Again, utilize normal saline to make and exist the mucosa of pathological changes portion partly to swell, but, perhaps be absorbed in the body, so protrusion shrinks because the normal saline of supplying with during cutting flows out.Therefore, for this tela submucosa is remained the protuberance state, carry out mucosa with described identical path supply normal saline and peel off while can utilize.Promptly, can be in the patchhole of needle-like cutter 13 being drawn on being arranged on second guiding collar 30 31, and the front end face that makes flexible cover 2 is connected under the submucosal state, normal saline is supplied in the flexible cover 2 with high pressure by tubing connection portion 3a, directly infuse towards tela submucosa from connection tube 3.Consequently, the tela submucosa of desiring to peel off can be maintained the protuberance state.And, by front end face is connected to tela submucosa, supply with normal saline towards the position of necessity, just tela submucosa can be remained the protuberance state reliably, thereby the mucosa that can utilize needle-like cutter 13 to carry out is safely peeled off.
[second embodiment]
Below, based on description of drawings second embodiment of the present invention.The overall structure of the high-frequency treatment apparatus 100 of second embodiment and first embodiment same (with reference to Fig. 1).
Shown in Fig. 9 (Fig. 1 want portion's enlarged drawing) was clear and definite, the flexible flexible cord 11 that constitutes treatment instrument main body 10 began inside by connection tube 3 and extension flexible cover 2 in from the connecting portion with slide block 4b.Conductor wire leading section from flexible flexible cord 11 under linear state extends, and the leading-out portion of this conductor wire is divided into the electrod assembly 13 that constitutes the needle-like cutter.Again, insert at the leading section of flexible cover 2 and to be embedded with partition component 114, and utilize method such as bonding to fix.Partition component 114 is made of pottery etc., shown in Figure 10 and Figure 11 are clear and definite, is fixedly set in the position that constitutes with the roughly the same surface of the front end face of flexible cover 2.And on this partition component 114, the position of axle line is equipped with patchhole 115 and makes it connect on axis direction therein, and the aperture of this patchhole 115 becomes the size bigger slightly than the outside dimension of electrod assembly 13.And, be formed with the introducing tapering 114a that leads towards patchhole 115 ground counter electrode parts 13 at the base end part of partition component 114.
And then, to the transition part of electrod assembly 13 transition or the position of electrod assembly 13 restraint parts 116 are installed at flexible flexible cord 11 from treatment instrument main body 10.Restraint parts 116 have the external diameter slightly littler than the internal diameter of flexible cover 2, thereby when the mobile treatment instrument main body 10, roughly become the state with respect to the inner surface slip of this flexible cover 2 in flexible cover 2.And if the electrod assembly 13 of the front end of this treatment instrument main body 10 becomes from the state of the outstanding length of stipulating of front end face of partition component 114, then restraint parts 116 are connected on the partition component 114, thereby restriction electrod assembly 113 is further outstanding.
Like this, by restraint parts 116 are connected on the partition component 114, just can implement the disposal of regulation under the state of the outstanding specific length of the front end of flexible cover 2 at electrod assembly 13.Thereby the outstanding length of the electrod assembly 13 of this moment depends on becomes the thickness of tissue of disposing object.For example, under the state of the incision of carrying out mucosa, it is longer than the thickness of the mucous layer of body cavity walls that it is become, and than mucous layer and the short size of submucosal aggregate thickness.With this, if be connected under the state of mucous layer at front end face with flexible cover 2, counter electrode parts 13 energisings are on one side thrust with respect to mucosa on one side, then electrod assembly 13 connects mucous layer, arrive tela submucosa, but do not reach the flesh layer, make and to cut mucous layer reliably and the flesh layer not produced damage thereby can dispose.
And, by this high-frequency treatment apparatus 100, implement the incision of mucous layer or the disposal that waits from peeling off of flesh layer, but when generation is hemorrhage during carrying out this disposal,, can supply with physiological saline and so on liquid in order to wash this hemorrhage portion.Therefore, shown in Fig. 1 is clear and definite, has the connector 3a that is arranged on the connection tube 3, on this connector 3a, can be connected with the transfusion pipe arrangement 6 that comes from transfusion jar 5 with loading and unloading, on this transfusion pipe arrangement 6, for example formed switching mechanism 7 such as foot switch is installed, utilizes the supply of these switching mechanism 7 controlling liquid.Thereby, pass through the inside of connection tube 3 from connector 3a, thereby be connected in the inside of the flexible cover 2 on this connection tube 3, constitute the path of transfusion usefulness thus.Therefore, flexible flexible cord 11 is at the base end part of connection tube 3, and sealed parts 20 export to the outside.
Therefore, shown in Figure 12 (a), equally spaced be formed with three places liquid jet path groove 121 in a circumferential direction at the outer peripheral face of partition component 114.These liquid jet path grooves 121 connect on the axis direction of partition component 114.Partition component 114 must be fixed in the inner surface of flexible cover 2.Partition component 114 is fixed in the flexible cover 2 by using bonding agent to embed.And, be formed at the width of the circumferencial direction of the liquid jet path groove 121 on the outer peripheral face of partition component 114, in being fixed on fixed scope of flexible cover 2, widens as far as possible harmless this partition component 114, increase flow path area thus.
Like this, partition component 114 is fixed on the flexible cover 2, but the restraint parts 116 that are arranged on treatment instrument main body 10 sides are not subjected to the restriction of the position of direction of rotation on the inner surface of flexible cover 2.And, at the outer peripheral face of these restraint parts 116, shown in Figure 12 (b), equally spaced be formed with in a circumferential direction number than the liquid jet path groove more than 121 of partition component 114, the path groove 122 of for example infusing everywhere particularly.Again, the degree of depth of this transfusion path groove 122, roughly the same with liquid jet path groove 121, perhaps dark than it, again, and the length dimension on its circumferencial direction, wide at interval between the groove than the adjacent liquid jet path groove 121 of partition component 114.With this, the transfusion path groove 122 of restraint parts 116 is on position of rotation arbitrarily, and at least a portion is communicated with liquid jet path groove 121.In addition, if constitute transfusion path groove 122 like this, then its spacing of tanks narrows down, but restraint parts 116 are as long as stably roughly remain on electrod assembly 13 on the position of axle core of flexible cover 2, so even lack also harmless with the sliding contacting part of the inner surface of flexible cover 2.
With this, projection electrode parts 13 on extrusion position to greatest extent, when restraint parts 116 were connected on the partition component 114, transfusion path groove 122 was partly overlapping with the liquid jet path groove 121 of partition component 114, thereby can be from the front end atomizing of liquids of flexible cover 2.
As shown in Figure 7, high-frequency treatment apparatus 100 with above structure utilizes the treatment instrument insertion channel C that is arranged on the endoscope insertion part S with the W of observation portion and is inserted in the body cavity, when for example there is the pathological changes mucosa in the body cavity walls of esophagus, stomach, duodenum, large intestine etc., use in order to implement to remove this this disposal of pathological changes membranous part with peeling off.At first, the pathological changes membranous part is injected normal saline etc., make tela submucosa bloat protuberance by using syringe.Then, insert in the channel C, carry out the incision of mucosa with this high-frequency treatment apparatus 1 by high-frequency treatment apparatus 1 being inserted in treatment instrument.At this moment, the pipe arrangement 6 of will infusing in advance is connected on the connector 3a of connection tube 3, utilizes this transfusion pipe arrangement 6 to supply with physiological saline and so on liquid.
Make the mucous layer of the front end face of flexible cover 2, and shift onto on the mucomembranous surface lightly over against excision.At this because the front end face of flexible cover 2 forms the roughly the same face of front end face with partition component 114, so on mucomembranous surface with wider area butt, thereby mucosa is not stablized maintenance not oppressedly.
Under this state,, make electrod assembly 13 outstanding from the front end of flexible cover 2 by operating operation mechanism 4.And by the high frequency electric that circulates in electrod assembly 13, in-vivo tissue is just burnt and is cut.At this, electrod assembly 13 more is positioned at base end side than the patchhole 115 of partition component 114, but the position is equipped with restraint parts 116 near the front end of this electrod assembly 13, and these restraint parts 116 roughly are connected on the inner peripheral surface of flexible cover 2.Therefore, electrod assembly 13 remains and the roughly consistent posture state of its core in the inside of flexible cover 2.Thereby, because this electrod assembly 13 is disposed at and is arranged on the roughly same axis of patchhole 115 on the partition component 114, again because tapering 114a is introduced in forming on every side of the patchhole 115 on partition component 114, so the remote manipulation that this electrod assembly 13 utilizes operating mechanism 4 to be produced steadily and reliably is inserted in the patchhole 115.
If electrod assembly 13 becomes outstanding to greatest extent state, the restraint parts 116 that promptly are installed on the electrod assembly 13 advance to the position that is connected on the partition component 114, then the leading section of this electrod assembly 13 connects mucous layer and arrives tela submucosa, and penetrates into the position of not touching the flesh layer.And, by circulation high frequency electric bending operation endoscope insertion part S etc. on one side in electrod assembly 13 on one side, move like coming on the periphery of pathological changes mucosa, to describe with electrod assembly 13.With this, cut the periphery of pathological changes mucosa, but can't produce a bit damage this moment to being positioned at submucosal flesh layer.Afterwards, utilize the cut-out that is used for of electrod assembly 13 to constitute submucosal fiber, carry out mucosa with this and peel off.Then, the mucous layer that can utilize recovery such as for example controlling pliers to peel off like this.
Utilize above operation, just residual disease mucosa ground does not excise fully, and can not produce a bit damage to the mucosa or the flesh layer of health.And, because electrod assembly 13 constitutes the needle-like cutter, so can by the action of oscillating electrode parts 13 grades, come rapidly and carry out effectively the excision of mucosa again by move horizontally electrod assembly 13 along mucous layer.Consequently, alleviate person under inspection's the misery and the burden of patient with operation etc.
Carry out described disposal during, produce hemorrhage sometimes.So,,,, guarantee the field of view that the W of observation portion is produced by this hemorrhage portion of flushing by atomizing of liquids taking place under the hemorrhage situation.Therefore, the inside force feed physiological saline and so on liquid of the 6 pairs of flexible covers 2 of transfusion pipe arrangement from the connector 3a that is connected in connection tube 3.With this, can spray normal saline etc. towards hemorrhage from the liquid jet path groove 121 of the transfusion path groove 122 of the inner utilization restraint parts 116 of flexible cover 2 and partition component 114, carry out the flushing of hemorrhage portion reposefully.Again, protrusion is because of the liquid of normal saline etc. flows out from the tela submucosa that local injection swells sometimes, perhaps absorbed in the body and shrinks.Thereby, as mentioned above, also can replenish normal saline etc. from the liquid jet path groove 121 that is arranged on the partition component 114.
At this, replenishing of the flushing of hemorrhage portion or normal saline etc. also can be carried out under the state of projection electrode parts 13, but can be by this electrod assembly 13 is drawn in patchhole 115, make the front end of flexible cover 2 be connected to the supply position of liquid, perhaps be disposed at its progressive position and spray.Again because do not dispose any parts in the place ahead of liquid jet path groove 121, so the liquid that sprays from this liquid jet path groove 121 be not emitted to around but concentrate on the target location reliably.Thereby, can effectively wash with a spot of liquid, replenish.
Also can not use the transfusion path groove 122 on the outer peripheral face that is formed at restraint parts 116 as mentioned above, but as illustrated in fig. 13 the transfusion via hole 131 that is made of through hole is set on restraint parts 130.This transfusion via hole 131 forms a plurality of in a circumferential direction, and do to become in the intervals on this circumferencial direction below the width of circumferencial direction of the liquid jet path groove 121 that is arranged on the partition component 114, no matter then the position of rotation of restraint parts 130 is in any position, the transfusion via hole 131 of at least a portion is communicated with liquid jet path groove 121.
Claims (2)
1. high-frequency treatment apparatus, the treatment instrument main body that has the electrod assembly of the linearity that can apply high frequency electric at the front end of flexible flexible cord is installed in the inside of flexible cover, utilize treatment instrument for endoscope to insert passage and be inserted in the body cavity, it is characterized in that
Be equipped with at described flexible cover internal fixation and insert the partition component be provided with the patchhole that makes described electrod assembly turnover, make the front end face of described partition component become the roughly same position of front end face with this flexible cover,
Be provided with the restraint parts of the described electrod assembly of restriction from the outstanding length of described patchhole in described treatment instrument main body, described restraint parts can or separate with the cardinal extremity contacts side surfaces of described partition component,
Be formed with the liquid jet path that is used to spray from least one position of the liquid of the internal feed of described flexible cover at described partition component,
Be provided with the transfusion path that all is connected on the position of rotation arbitrarily at it with described liquid jet path at described restraint parts.
2. high-frequency treatment apparatus as claimed in claim 1 is characterized in that, described liquid jet path and transfusion path are formed by a plurality of grooves or the open-work of the peripheral part that is arranged at described partition component and restraint parts respectively.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-152007 | 2005-05-25 | ||
| JP2005-152005 | 2005-05-25 | ||
| JP2005152005A JP4632039B2 (en) | 2005-05-25 | 2005-05-25 | High frequency treatment tool |
| JP2005152005 | 2005-05-25 | ||
| JP2005152007 | 2005-05-25 | ||
| JP2005152007A JP4794214B2 (en) | 2005-05-25 | 2005-05-25 | High frequency treatment tool |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100848730A Division CN100475169C (en) | 2005-05-25 | 2006-05-23 | High frequency treatment tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101327147A CN101327147A (en) | 2008-12-24 |
| CN101327147B true CN101327147B (en) | 2010-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100848730A Expired - Fee Related CN100475169C (en) | 2005-05-25 | 2006-05-23 | High frequency treatment tool |
| CN200810145019XA Expired - Fee Related CN101327147B (en) | 2005-05-25 | 2006-05-23 | High frequency treatment tool |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100848730A Expired - Fee Related CN100475169C (en) | 2005-05-25 | 2006-05-23 | High frequency treatment tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4632039B2 (en) |
| CN (2) | CN100475169C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2681537B1 (en) * | 2011-02-28 | 2022-06-15 | Safran Aircraft Engines | Device for searching for defects on parts by endoscopy |
| CN102579129A (en) * | 2012-03-28 | 2012-07-18 | 刘枫 | High-frequency incision knife with accurate fixed-length knife bit for endoscope |
| EP3222241A4 (en) * | 2014-11-18 | 2018-08-01 | Olympus Corporation | Endoscopic treatment instrument |
| CN108258929A (en) * | 2016-12-28 | 2018-07-06 | 南京森盛医疗设备有限公司 | A kind of radio frequency power amplification modules of rapid blood coagulation cutter device |
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| DE3707820A1 (en) * | 1986-03-12 | 1987-09-17 | Olympus Optical Co | High-frequency instrument for medical treatment |
| US4708137A (en) * | 1985-05-20 | 1987-11-24 | Olympus Optical Co., Ltd. | High-frequency incision device |
| DE19602759A1 (en) * | 1996-01-26 | 1997-07-31 | Wolf Gmbh Richard | High-frequency surgical instrument |
| US6193717B1 (en) * | 1997-10-16 | 2001-02-27 | Asahi Kogaku Kogyo Kabushiki Kaisha | Treating instrument for endoscope |
| CN1327377A (en) * | 1998-11-16 | 2001-12-19 | 伊恩·考斯麦斯库 | Multifunctional telescopic electrosurgical instrument and method therefor |
| DE10312485A1 (en) * | 2003-03-20 | 2004-10-07 | Medi-Globe Gmbh | Endoscopic puncturing needle arrangement for carrying out biopsies comprises a flexible sliding hollow body arranged and sliding in an elastic catheter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0234885Y2 (en) * | 1985-09-17 | 1990-09-20 | ||
| JPH04329944A (en) * | 1991-01-25 | 1992-11-18 | Olympus Optical Co Ltd | High-frequency incision apparatus |
| JP2001327510A (en) * | 2000-05-22 | 2001-11-27 | Olympus Optical Co Ltd | Scattering treatment tool for endoscope |
| JP4309567B2 (en) * | 2000-10-05 | 2009-08-05 | オリンパス株式会社 | Endoscopic treatment tool |
| JP4315725B2 (en) * | 2003-04-17 | 2009-08-19 | オリンパス株式会社 | High frequency knife |
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- 2005-05-25 JP JP2005152005A patent/JP4632039B2/en not_active Expired - Fee Related
-
2006
- 2006-05-23 CN CNB2006100848730A patent/CN100475169C/en not_active Expired - Fee Related
- 2006-05-23 CN CN200810145019XA patent/CN101327147B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US4708137A (en) * | 1985-05-20 | 1987-11-24 | Olympus Optical Co., Ltd. | High-frequency incision device |
| DE3707820A1 (en) * | 1986-03-12 | 1987-09-17 | Olympus Optical Co | High-frequency instrument for medical treatment |
| DE19602759A1 (en) * | 1996-01-26 | 1997-07-31 | Wolf Gmbh Richard | High-frequency surgical instrument |
| US6193717B1 (en) * | 1997-10-16 | 2001-02-27 | Asahi Kogaku Kogyo Kabushiki Kaisha | Treating instrument for endoscope |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN100475169C (en) | 2009-04-08 |
| CN1868416A (en) | 2006-11-29 |
| JP4632039B2 (en) | 2011-02-16 |
| JP2006325809A (en) | 2006-12-07 |
| CN101327147A (en) | 2008-12-24 |
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