CN202235277U - Endoscope and hardness adjusting device - Google Patents
Endoscope and hardness adjusting device Download PDFInfo
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- CN202235277U CN202235277U CN 201120381938 CN201120381938U CN202235277U CN 202235277 U CN202235277 U CN 202235277U CN 201120381938 CN201120381938 CN 201120381938 CN 201120381938 U CN201120381938 U CN 201120381938U CN 202235277 U CN202235277 U CN 202235277U
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/00078—Insertion part of the endoscope body with stiffening means
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Abstract
The utility model provides an endoscope and a hardness adjusting device, which have the advantages that: the operability of a hardness variable mechanism for a flexible part of an endoscope insertion part can be improved, and particularly the hardness variable mechanism can be easily operated by one hand with smaller effort. The hardness adjusting device comprises a joint sealing spiral spring, a metal wire, a fixing mechanism, an eccentric rolling-up rotating body and a metal wire position limitation mechanism, wherein the joint sealing spiral spring is arranged in the flexible part of the endoscope insertion part and can be used for changing the flexibility of the flexible part; the metal wire is fixed with the front end part of the joint sealing spiral spring and is arranged in a way of penetrating through the joint sealing spiral spring; the fixing mechanism is used for fixing the rear end part of the joint sealing spiral spring; the eccentric rolling-up rotating body is used for dragging the metal wire, and the metal wire is rolled on the peripheral surface of the eccentric rolling-up rotating body so as to be rolled up; and the metal wire position limitation mechanism is arranged on an assigned position between the eccentric rolling-up rotating body and the rear end part of the joint sealing spiral spring, so that the position of the metal wire is limited in a way that the dragging direction of the metal wire between the assigned position and the rear end part of the joint sealing spiral spring is consistent with an axis of the joint sealing spiral spring.
Description
Technical field
This utility model relates to endoscope and hardness adjusting device, especially relates to the flexible endoscope and the hardness adjusting device of the flexible part that can change in the endoscope insertion part.
Background technology
All the time, at medical field, extensively implement the medical diagnosis that has utilized endoscope.Especially, at imaging apparatus such as the insertion leading section in-built CCD that inserts endoceliac endoscope endoceliac image is photographed, and utilize blood processor to implement signal processing and be presented on the monitor, the doctor observes it and is used for diagnosis.Perhaps insert treatment tool and the extraction of embodiment such as test portion or the excision of polyp etc. when disposing, use endoscope at the passage that passes usefulness from treatment tool.
Endoscope roughly comprises usually: person's of performing a surgical operation (being designated hereinafter simply as operator) controls and the main body operating unit of operating; Be connected with this main body operating unit and be inserted into the insertion section of waiting in the body cavity; The general cable that is connected with connector portion etc. from main body operating unit being used for of drawing.And general cable extends from main body operating unit, and its other end is connected with light supply apparatus (light supply apparatus and processor) with removable mode.
The insertion section of endoscope has is with flexible flexible part, thereby can insert in the crooked insertion path, complicated ground.Yet,, thereby exist the direction of insertion section front to be difficult to confirm and be difficult to problem to the direction insertion of target owing to this flexible.In addition, when in body cavity, inserting, in order to carry out certain disposal or observation, having the insertion section preferred immobilization is the situation of shape at that time.
Therefore, considered to adjust the flexible variable hardness mechanism of the flexible part of insertion section.In this variable hardness mechanism, the coil arrangement that will change hardness (to the hardness of bending) through compression makes traction pass in the coil pipe with metal wire in the flexible part of endoscope insertion part, fixes with the binding of this metal wire front end and coil pipe and with the rear end side of coil pipe.Then, traction is carried out draw operations with metal wire, thereby can change the compressive state of coil pipe and adjust flexible part flexible of insertion section through being rotated in the flexible adjustment operation knob that operating portion installs.
Yet required metal wire pull strength reaches tens kgf in the variable hardness mechanism that has used coil pipe (connecting airtight helical spring).At this moment, preferably utilize the deceleration of haulage gear and reduce the operating physical force of operator as much as possible.Yet; For example above-mentioned such rotary manipulation knob and when drawing metal wire, the relation of the pull strength that the operational ton of operation knob and metal wire produce is a straight line is along with the hardness of coil pipe rises and the operating physical force quantitative change is heavy; Relatively operational stroke increases, and the loaded down with trivial details degree of operation increases.
With respect to this, for example in patent documentation 1, in the metal wire haulage gear of the variable hardness mechanism that has used coil pipe, use the cam mechanism of operating through operation knob, and the spacing of the cam path of cam mechanism is changed halfway.The structure of being put down in writing according to this patent documentation 1; At the smaller traction initial stage of metal wire pull strength; Can reduce speed reducing ratio and increase the drawing length under the identical operations stroke; And increase the traction second half section of (it is big that hardness becomes) at the metal wire pull strength, can increase speed reducing ratio and reduce the drawing length under the identical operations stroke.
[patent documentation 1] japanese kokai publication hei 11-307 communique
Yet in the past, endoscope operator (operator) is holding operation portion and grip flexible part at the right hand leftward, inserted, diagnosed, operation such as treatment.Yet, as above-mentioned prior art, coming in the structure of cam mechanism through operation knob, owing to must make right hand flexible part away from keyboard and the rotary manipulation knob, so operator can't utilize one hand to operate.
Therefore; In that being drawn with metal wire, the traction of passing coil pipe (connecting airtight helical spring) changes in the variable hardness mechanism of hardness (bending hardness) of coil pipe; The traction initial stage little at the metal wire pull strength and hardness is also little; The preferred drawing length that increases metal wire, and preferably reduce the metal wire drawing length along with becoming the traction second half section that the metal wire pull strength is big and hardness is big and reduce operating physical force.Thus, can improve the operability of variable hardness mechanism, operator can be with one hand, less power and easily operate the metal wire haulage gear.
The utility model content
This utility model is made in view of such situation; Its purpose is to provide a kind of operability, especially operator of variable hardness mechanism of the flexible part that can improve endoscope insertion part easily to operate the endoscope and the hardness adjusting device of variable hardness mechanism with singlehanded, less power.
To achieve these goals; 1 form according to this utility model; The flexible hardness adjusting device of adjusting to the flexible part of endoscope insertion part possesses: connect airtight helical spring, it is configured in the said flexible part of said endoscope insertion part, and can change the said flexible of this flexible part; Metal wire, itself and saidly connect airtight helical spring leading section and be fixed together, and saidly connect airtight helical spring mode and be provided with to pass; Fixed mechanism, it connects airtight helical spring rearward end and fixes said; The eccentric rotary body of rolling, it draws said metal wire, reels said metal wire and said metal wire is rolled at its outer peripheral face; The metal wire position restriction mechanism; It is configured in said eccentric rolling on rotary body and the said assigned position that connects airtight between the helical spring rearward end, so that the lead that said assigned position and said connects airtight the said metal wire between the helical spring rearward end is connected airtight the position that the consistent mode of helical spring axis limits said metal wire with said.
In this hardness adjusting device, owing to can change operational stroke, so can improve the operability of variable hardness mechanism of the flexible part of endoscope insertion part in pull strength little traction initial stage and big traction second half section of pull strength.And the lead through making metal wire is with to connect airtight helical spring axis consistent, and can prevent that metal wire from breaking.
At this, in above-mentioned hardness adjusting device, connect airtight helical spring, metal wire and the eccentric rotary body of rolling and constitute variable hardness mechanism.
In addition, in above-mentioned hardness adjusting device, the said eccentric rotary body of rolling can use eccentric sheave to constitute.
Through using eccentric sheave, can change operational stroke in pull strength little traction initial stage and big traction second half section of pull strength with simple structure.
In addition; In above-mentioned hardness adjusting device, said metal wire position restriction mechanism can be configured in following position, promptly; The said rotary body of rolling carries out maximum when traction, said metal wire and the discontiguous position of said metal wire position restriction mechanism to said metal wire.
The increase of the pull strength in the time of thus, can preventing maximum the traction.
In addition, in above-mentioned hardness adjusting device, said metal wire position restriction mechanism can be used swimmingly in guiding groove, hole or the rotary body that slides any and constitute.
So, as the metal wire position restriction mechanism, can use various structures.
In addition, in above-mentioned hardness adjusting device, said hardness adjusting device can also possess reducing gear, and this reducing gear has to be provided rotary driving force and to the said eccentric rotary body of rolling self worm gearing of brake force is provided the said rotary body of rolling.
Thus, can metal wire be fixed on distracted position arbitrarily, thereby can flexible part be remained hardness state arbitrarily.
In addition, in above-mentioned hardness adjusting device, can link at said reducing gear has action bars, and this action bars rotates the hand-held portion of endoscope that is arranged on freely.
Through the setting operation bar, and can be manually to operate reducing gear.
In addition, in above-mentioned hardness adjusting device, can be that said reducing gear and said action bars link together via one-way clutch.And; Said one-way clutch is optionally operated by the said traction of rolling the said metal wire that rotary body carries out and lax; Thereby the rotation of removing Cheng Fangxiang that can utilize said action bars comes said reducing gear is carried out transmission of power, and utilizes the rotation of the backhaul direction of said action bars that said action bars is dallied with respect to said reducing gear.
Thus, in traction during metal wire, if make action bars to going Cheng Fangxiang to rotate, then to the reducing gear transmission, so metal wire is drawn by pulley this rotating operation power via one-way clutch.And if action bars is rotated to the backhaul direction, then action bars dallies with respect to reducing gear under the effect of one-way clutch, and pulley does not rotate.And when the operation of the backhaul direction of action bars, pulley does not rotate under the effect of self brake force of worm gearing, and metal wire remains the state of being rolled by pulley.Thus, improve the operability of variable hardness mechanism, therefore alleviate the burden of operator.
In addition; Likewise to achieve these goals; According to 1 form of this utility model, in the endoscope that possesses the flexible hardness adjusting device of adjusting of the flexible part of endoscope insertion part, said hardness adjusting device possesses: connect airtight helical spring; It is configured in the said flexible part of said endoscope insertion part, and can change the said flexible of this flexible part; Metal wire, itself and saidly connect airtight helical spring leading section and be fixed together, and saidly connect airtight helical spring mode and be provided with to pass; Fixed mechanism, it connects airtight helical spring rearward end and fixes said; The eccentric rotary body of rolling, it draws said metal wire, and reels said metal wire and said metal wire is rolled at its outer peripheral face; The metal wire position restriction mechanism; It is configured in said eccentric rolling on rotary body and the said assigned position that connects airtight between the helical spring rearward end, so that said assigned position and said lead of connecting airtight the said metal wire between the helical spring rearward end are carried out position limit with the said consistent mode of helical spring axis of connecting airtight to said metal wire.
In above-mentioned endoscope, owing to can change operational stroke, so can improve the operability of variable hardness mechanism of the flexible part of endoscope insertion part in pull strength little traction initial stage and big traction second half section of pull strength.And the lead through making metal wire is with to connect airtight helical spring axis consistent, and can prevent that metal wire from breaking.
In addition, in above-mentioned endoscope, the said eccentric rotary body of rolling can use eccentric sheave to constitute.
Through using eccentric sheave, can change operational stroke in pull strength little traction initial stage and big traction second half section of pull strength with simple structure.
In addition, in above-mentioned endoscope, it is characterized in that, and, roll the scope that one hand that action bars that rotary body drives is arranged on the operator of the hand-held portion of controlling endoscope can be operated to said.
Thus, can easily operate variable hardness mechanism with singlehanded, less power.
[utility model effect]
As described above said, according to this utility model, through changing operational stroke, and can improve the operability of variable hardness mechanism of the flexible part of endoscope insertion part at little traction initial stage of pull strength and big traction second half section of pull strength.And the lead through making metal wire is with to connect airtight helical spring axis consistent, and can prevent that metal wire from breaking.And in the time of will being arranged on hand-held portion top to the action bars that the metal wire haulage gear is operated, operator can easily be operated variable hardness mechanism with singlehanded, less power.
Description of drawings
Fig. 1 is the brief configuration figure of an embodiment of the endoscope of the expression hardness adjusting device that possesses this utility model.
Fig. 2 is the cutaway view along its length of the internal structure of expression endoscope.
Fig. 3 is the cutaway view of hand-held portion of the structure of expression metal wire tractive unit.
Fig. 4 is the key diagram of expression eccentric sheave; (A) expression does not have the situation of metal wire position regulation member; (B) be illustrated in the situation of hardness 0 under the situation of having put into the metal wire position regulation member, (C) situation of highest hardness under the situation of metal wire position regulation member has been put in expression.
Fig. 5 is the axonometric chart of the structure of expression haulage gear portion.
Fig. 6 is the assembling stereogram of an example of expression one-way clutch.
Fig. 7 is the side view of one-way clutch shown in Figure 6.
Fig. 8 is another routine structure chart of expression one-way clutch.
Fig. 9 is the axonometric chart of structure that expression possesses the haulage gear portion of length adjustment member.
Figure 10 (A), (B) are the structure charts of length adjustment member.
Symbol description:
10... endoscope
12... hand-held portion
14... insertion section
16... general cable
22... front end hard portion
24... bending section
26... flexible part
30... angle knob
The water button 32... supply gas
34... attraction button
40... action bars
44... connect airtight helical spring (connecting airtight spring)
46... metal wire
(50... connecting airtight spring) fixed component
56... pulley shell
58... worm gear
60... worm screw
74... pulley
The specific embodiment
Below, with reference to accompanying drawing, specify the endoscope and the hardness adjusting device of this utility model.
Fig. 1 is the brief configuration figure of an embodiment of the endoscope of the expression hardness adjusting device that possesses this utility model.
As shown in Figure 1, endoscope 10 possesses hand-held portion 12 and base end part and hand-held portion 12 banded insertion sections 14.Hand-held operating portion 12 is controlled and operated to operator with on the other hand (for example left hand), uses another hands (the for example right hand) to control insertion section 14 and insertion section 14 is inserted in examinees' the body cavity simultaneously, thereby observe.
In addition, be provided with the water button 32 of supplying gas in hand-held portion 12, attract button 34 and pliers to insert mouth 36 etc.The water button 32 of supplying gas is used for supplying gas and sending water, said attraction button 34 likewise to be used for attracting via the forceps channel of not shown pliers passage from front end hard portion 22 to check point etc. from the supplying gas of front end hard portion 22/water delivery nozzle via the not shown aquaporin of supplying gas.Pliers inserts mouth 36 and supplies operator to insert the opening of pliers with the pliers channel connection as being used to.
In addition, endoscope 10 possesses the flexible hardness adjusting device (flexible adjusting device) of adjustment flexible part 26.Its detailed structure is narrated in the back, in flexible part 26, disposes and connects airtight helical spring.Metal wire in the flexible part front with to connect airtight helical spring affixed and be passed in hand-held portion 12 sides and be fixed in connecting airtight in the helical spring of fixed component.Through drawing this metal wire, be compressed and connect airtight helical spring, make and connect airtight helical spring hardness hardening.Thus, make the hardness hardening of flexible part 26.
Be provided with the action bars 40 of the hardness guiding mechanism of the hardness of adjusting flexible part 26 on the top of hand-held portion 12.Through action bars 40 is operated, and metal wire is drawn via the metal wire tractive unit.Shown in the double dot dash line of Fig. 1, action bars 40 is arranged on the scope that the left-hand finger of controlling hand-held portion 12 can arrive.In addition, details is narrated in the back, and in this embodiment, the metal wire tractive unit of hardness adjusting device also is arranged on the top of hand-held portion 12.At this, the top when said top is meant the use form of endoscope 10 structurally is meant the base end part side of hand-held portion 12.
Fig. 2 representes the structure of endoscope 10 with cutaway view alongst.
As shown in Figure 2, the bending section 24 of insertion section 14 through will form cyclic a plurality of curved tabs 42,42... is provided with continuously and constitutes.Adjacent curved tabs 42 connects to each other and can rotate, and through the angle knob 30 (with reference to Fig. 1) of hand-held operating portion 12 is operated, and can make bending section 24 along direction is crooked up and down, thereby the front end face 23 that makes front end hard portion 22 is towards direction arbitrarily.
In addition, as shown in Figure 2, the helical spring of connecting airtight 44 (below, abbreviate as and connect airtight spring 44) is arranged and pass in the internal configurations of flexible part 26 and connect airtight the inner metal wire 46 of spring 44.At least a portion of connecting airtight helical spring 44 and the flexible adjusting device of metal wire 64 formations.
An end that connects airtight spring 44 is fixed on the leading section side of flexible part 26 through soldering etc., and the other end through for example soldering etc. be fixed on hand-held portion 12 after the fixed component that connects airtight spring 44 50 (with reference to Fig. 3) stated.
At this, in above-mentioned hardness adjusting device, connect airtight helical spring, metal wire and roll rotary body (afterwards stating) formation variable hardness mechanism.
Fig. 3 representes the structure of metal wire tractive unit.The cutaway view of hand-held portion 12 is represented in the left side of Fig. 3, and the side view of metal wire haulage gear is represented to observe from the right side of the hand-held portion 12 of figure in the right side of Fig. 3.
Shown in the left side of Fig. 3, dispose on the top of hand-held portion 12 and to be used for the metal wire that passes the metal wire tractive unit that the metal wire 46 that connects airtight in the spring 44 draws rolled pulley (rolling rotary body) 74 (below, abbreviate pulley 74 as).Hang with metal wire 46 at pulley 74 volumes, metal wire 46 is fixed in pulley 74 with its end points 48.And pulley 74 links with worm gear (pulley drive gear) 58 coaxially.
In addition, observe from the right side of figure near the pulley 74 and the side view that obtains shown in the right side of figure, worm gear 58 engage with worm screw 60, through worm gear 58 and worm screw 60 formation worm gearings.On worm screw 60, linking coaxially has spur gear 62, this spur gear 62 with and action bars 40 bonded gears 64 engage.
In addition, shown in the left side of Fig. 3, be close to the pulley 74 of configuration and be provided with and carry out fixed fixed component 50 connecting airtight spring 44 on the top of hand-held portion 12.
And, when operator is operated action bars 40, drive with action bars 40 bonded gears 64, drive spur gear 62 thus.Consequently, to driving with the bonded coaxially worm screw 60 of spur gear 62.And, driving through 60 pairs of worm gears 58 of worm screw, pulley 74 rotates, thus traction metal wire 46.
In addition; Because the front end of metal wire 46 is fixed on the front end that connects airtight spring 44; And an end that connects airtight spring 44 is fixed on fixed component 50, when therefore metal wire 46 being drawn, connects airtight spring 44 and dragged to pulley 74 laybacks of metal wire tractive unit; And be compressed between the fixed component 50, and its hardness (bending hardness) hardening.
So, in this embodiment, carry out the upper side that fixed fixed component 50 is arranged on hand-held portion 12, and will connect airtight spring 44 and extend to hand-held portion 12 tops connecting airtight spring 44.
In addition, dotted line is represented among two operating positions of action bars 40 such as Fig. 3, utilizes arrow to represent direction of operating, can be to above and below operating operation bar 40.Action bars 40 when operate the top, is driven spur gear 62 through gear 64, and worm screw 60 drives with spur gear 62, drives worm gear 58 through worm screw 60.Thus, pulley 74 rotates to the direction of rolling metal wire 46, and metal wire 46 is pulled, and connects airtight that spring 44 is compressed and the hardness of connecting airtight spring 44 increases the hardness hardening of flexible part 26 (flexible reduction).In addition; When action bars 40 is operated downwards; Each gear is driven to the direction opposite with the top and pulley 74 rotates to the direction of back-roll metal wire 46; Metal wire 46 is lax, and the compression of connecting airtight spring 44 is disengaged and the hardness of connecting airtight spring 44 reduces, thereby the hardness of flexible part 26 also reduces (flexible rising).
At this, transmit to worm screw 60 from the operating physical force of action bars 40 gear 64 via action bars 40, transmit to pulley 74 via worm gear 58 then.And because metal wire 46 is fixed on the front end that connects airtight spring 44, so insertion section 14 (flexible part 26) when bending, and connects airtight also bending and length is elongated of spring 44.Therefore, even action bars 40 is not operated, metal wire 46 is also relatively gone into to pulley 74 laybacks, and the hardness of connecting airtight spring 44 changes.Therefore, shown in symbol 46A among Fig. 3, make metal wire 46 have the initial stage lax (surplus length of initial stage), so that hardness is not 0 o'clock action bars 40 not being operated, even insertion section 14 bendings, its hardness does not change yet.
Need to prove that when operator is operated action bars 40 and when making the hardness hardening of flexible part 26, even operator is removed finger from action bars 40, under the effect of worm screw 60 and the friction of the flank of tooth of worm gear 58, worm gear 58 also is fixed on its position.So, fix worm gear 58, and can be, thereby keep the traction state of metal wire 46 at fixed-site pulley 74 arbitrarily through utilizing worm screw 60.So, worm screw 60 has the braking function (auto-lock function) that keeps the metal wire traction state.And worm screw 60 has deceleration, is to alleviate the parts of packing into for littler operating physical force for the metal wire pull strength that reaches tens kgf that will act on metal wire 46.
Need to prove, below, illustrate in greater detail the operating physical force from action bars 40 is transmitted and the metal wire haulage gear of traction metal wire to worm screw 60.
So, the front end of metal wire 46 is fixed with connecting airtight spring 44 through flexible part 26 front, so the pull strength of metal wire 46 acts on the fixed component that connects airtight spring 44 50 on hand-held portion 12 tops as the compression stress of connecting airtight spring 44.Thus, through traction metal wire 46, can make the hardness hardening of connecting airtight spring 44.
In addition, shown in the right side of Fig. 3, in this embodiment, make the center of rotation 74C of pulley 74 eccentric.So, adjust the pulley of the metal wire 46 of usefulness in hardness and roll in the traction, owing to make pulley 74 off-centre, thus realized following haulage gear, that is,, roll length and increase at the traction initial stage, in the traction second half section, roll length along with the hardness increase and reduce.
That is, shown in the figure on the right side of Fig. 3, when beginning to draw, there is the initial stage 46A that relaxes in metal wire 46, and makes center of rotation 74C more eccentric than original middle mind-set (among the figure) left side of pulley 74, increases radius of turn, and at first should absorb by lax 46A of initial stage.
Yet when using eccentric pulley 74, the distance of the rotating shaft of pulley 74 (center of rotation 74C) and the distracted position (metal wire 46 leaves the position of pulley 74) of metal wire 46 is that radius of turn depends on the anglec of rotation of pulley 74 and changes.In variable hardness mechanism owing to connect airtight spring 44 and be fixed to and can't move, therefore when the distracted position of metal wire 46 changes, will inevitably produce with respect to connect airtight spring 44 spool and the situation of drawing metal wire 46 obliquely.
For example shown in Fig. 4 (A), when drawing metal wire 46 obliquely with respect to the axle that connects airtight spring 44, connecting airtight the fixed component 50 of spring 44 and the slip of metal wire 46 takes place repeatedly, therefore might cause the broken string of metal wire 46.
Therefore, in order to address this problem, and shown in Fig. 4 (B), at pulley 74 and connect airtight metal wire position regulation member 76 is set between the spring rear end portion.Metal wire position regulation member 76 is at pulley 74 and connect airtight between the rearward end of spring and push metal wire 46, and the lead that makes metal wire position regulation member 76 and connect airtight the metal wire 46 between the rearward end of spring becomes a straight line with the axle that connects airtight spring 44.Thus, metal wire 46 is not contacted with rearward end of connecting airtight spring or fixed component 50, thereby can prevent the broken string of metal wire 46.
In addition; Between metal wire position regulation member 76 and metal wire 46; Slip or rotational resistance do not reduce pro rata with pull strength and can work, therefore shown in Fig. 4 (C), when pull strength is maximum; Metal wire 46 with connect airtight spring 44 and on coaxial, become a straight line, unnecessary resistance is inoperative.Especially when pull strength is maximum, preferably on the position that metal wire 46 and metal wire position regulation member 76 are not joined, dispose metal wire position regulation member 76.
Thus, can prevent the broken string of metal wire 46, and the increase of the pull strength when preventing maximum traction.
Need to prove,, in Fig. 4, used pulley (metal wire position limit pulley, second pulley), but the metal wire position regulation member is not defined as pulley as metal wire position regulation member 76.Also can be rotary body or guiding groove that slides swimmingly or the hole etc. beyond the pulley.
Fig. 5 is the axonometric chart of the structure of expression haulage gear portion.
Haulage gear portion shown in this figure comprises the fixed component 50 that connects airtight spring 44, takes in pulley shell 56, worm gear 58, worm screw 60, spur gear 62 and the gear 64 of pulley 74 in inside from metal wire 46 towards action bars 40.
Constitute worm gearing by worm gear 58 and worm screw 60, constitute reducing gear portion by this worm gearing, spur gear 62 and gear 64.Need to prove that reducing gear portion is not limited to the structure that is made up of gear, also can be based on the reducing gear portion of chain, conveyer belt.
In Fig. 5, the other end that connects airtight spring 44 is fixed in through soldering etc. and connects airtight spring fixed component 50.The fixed component 50 that connects airtight spring 44 is passed in the end of metal wire 46, with pulley 74 bindings in the pulley shell 56.
The helical angle of worm screw 60 is set for littler than angle of repose (angle of friction), thus, can prevent from the reverse drive of worm gear 58 to worm screw 60, and to the pulley 74 of Fig. 5 self brake force is provided.And the speed reducing ratio of said reducing gear portion for example is set at 50: 1, thus 50 times the torque of transmitting the operating physical force of action bars 40 to pulley 74.Thus, reach tens kilograms metal wire pull strength and can be alleviated and be less operating physical force, thereby can utilize finger easily action bars 40 to be operated.
That is, according to the haulage gear portion of embodiment, the rotating operation repeatedly of the little stroke through action bars 40 and can driving be provided to pulley 74.In this haulage gear portion, owing to pulley 74 is rotated,, can obtain the torque suitable with this speed reducing ratio so the operational ton of action bars 40 increases, therefore can alleviate the draw operations power of metal wire 46.Therefore, can utilize the finger of operator easily action bars 40 to be operated.And through using reducing gear portion, the haulage gear portion of drawing metal wire with the rotation of 1 stroke that utilizes action bars compares, and it is large-scale that portion of mechanism can not become, and action bars 40 also can small-sizedly get final product, and therefore, can realize the miniaturization of haulage gear portion.And trailed metal wire 46 utilizes self brake force of worm gearing and the state that keeps being rolled by pulley 74, therefore can keep the flexible of flexible part 24 easily.
If operator carries out rotating operation to action bars 40, then drive with action bars 40 banded gears 64, thus, spur gear 62 is driven.Consequently, worm screw 60 and worm gear 58 drive, pulley 74 rotate and metal wire 46 by metal wire 54 traction, lax.In addition; The front end of metal wire 46 is fixed on the leading section that connects airtight spring 44 shown in Figure 2, and the other end that connects airtight spring 44 is fixed on the spring fixed component 50 that connects airtight shown in Figure 3, therefore; When metal wire 46 is pulled; Connect airtight spring 44 and dragged, connect airtight spring 44 and connect airtight between the spring fixed component 50 and be compressed to pulley 74 laybacks, and its hardness increase.
If to the top action bars 40 is operated, then under the effect of gear 64, spur gear 62, worm screw 60 and worm gear 58, pulley 74 rotates to the direction of rolling metal wire 54.Thus, connect airtight spring 44 and be compressed, increase and the flexible reduction (that is, being difficult to bending) of flexible part 26 so connect airtight the hardness of spring 44 because of metal wire 46 is pulled.
In addition, if downwards action bars 40 is operated, then under the effect of gear 64, spur gear 62, worm screw 60 and worm gear 58, pulley 74 rotates to the direction that metal wire 54 is rewound.Thus, the compression of connecting airtight spring 44 because metal wire 46 is lax is disengaged, the flexible rising (that is, crooked easily) of flexible part 26 so connect airtight that the hardness of spring 44 reduces.
In addition; When the person of performing a surgical operation operates action bars 40 and during the flexible hardening of flexible part 26; Even operator is removed finger from action bars 40, worm gear 58 is also owing to the gear tooth friction power of worm gear 58 and worm screw 60 is the position (self-locking) that self brake force is fixed on himself.Through so the rotation of worm gear 58 being braked, and can pulley 74 be fixed on position arbitrarily, thereby can keep the traction state of metal wire 46.
As stated; Endoscope 10 according to embodiment; Through metal wire 46 is drawn, lax pulley 74 and have pulley 74 is provided rotary driving force and provides the reducing gear portion of the worm gearing of self brake force to constitute haulage gear portion to pulley 74; Therefore, can realize the miniaturization of haulage gear portion and reduce the draw operations power of metal wire 46.
Next, the basic function of the one-way clutch that action bars 40 is connected with reducing gear portion is described.
One-way clutch is optionally operated based on the traction of the metal wire 46 of pulley 74 and lax based on the metal wire 46 of pulley 74.Therefore, one-way clutch possesses following function, that is, the rotation of removing Cheng Fangxiang through action bars 40 comes the transferring power to reducing gear portion, utilizes the rotation of the backhaul direction of action bars 40 that action bars 40 is dallied with respect to reducing gear portion.
Therefore, under the situation of traction metal wire 46, when making action bars 40 when going Cheng Fangxiang to rotate, this rotating operation power is transmitted to reducing gear portion via one-way clutch, thereby metal wire 46 is by pulley 74 tractions.And when making action bars 40 when the backhaul direction is rotated, action bars 40 dallies with respect to reducing gear portion under the effect of one-way clutch.Therefore, power can not transmit to reducing gear portion, and pulley 74 does not rotate.
That is, through making action bars 40 to going Cheng Fangxiang and backhaul direction to rotate repeatedly, and metal wire 46 is advanced by pulley 76 tractions.In addition, when when the backhaul direction is operated action bars 40, pulley 74 does not rotate under the effect of self brake force of worm gearing.Thus, because the state that metal wire 46 maintenances are rolled by pulley 74, so need not to utilize the person's of performing a surgical operation finger to keep, and can alleviate the person's of performing a surgical operation burden.Need to prove that the basic function under the situation that metal wire 46 is relaxed also is identical.
Next, with reference to Fig. 6, Fig. 7 one-way clutch 80 is described.
One-way clutch 80 shown in this figure comprises that traction is with latch spring 82, lax with latch spring 84, drive plate 88 and direction of operating demarcation strip 90.
Traction integratedly is fixed on the discoid base end part 41 of action bars 40 with lax with latch spring 84 with latch spring 82, and is configured in the rotating shaft 40A different distances place apart from action bars 40.Traction is only to the leaf spring of the lead shown in the arrow A of action bars 40 traction metal wires 46 to drive plate 88 transferring power with latch spring 82, and relaxing with latch spring 84 is only to the leaf spring of the lax direction shown in the arrow B of metal wire 46 to drive plate 88 transferring power.
Drive plate 88 and gear 64 be fixed on coaxial on, but traction equally spaced forms with mode was engaged first projection 92, the 92... of latch spring 82 with transferring power.It is radial that these first projections 92,92... are with the rotating shaft of drive plate 88 that the center forms; Because the traction on the lead is mobile what go Cheng Fang to make progress with latch spring 82, form and drive plate 88 approximate vertical with the bearing surface of traction with latch spring 82 butts.In addition, with opposed of said bearing surface be the inclined plane because the traction on the lead is with latch spring 82 moving on the backhaul direction, traction is got over the above inclined plane with latch spring 82 and is dallied.
In addition, but lax equally spaced be formed on the drive plate 88 with mode was engaged second projection 94, the 94... of latch spring 84 with transferring power.It is radial that these second projections 94,94... are with the rotating shaft of drive plate 88 that the center forms; Because lax on the lax direction moved what go that Cheng Fang makes progress with latch spring 84, forms and drive plate 88 approximate vertical with the bearing surface that relaxes with latch spring 84 butts.In addition, with opposed of said bearing surface be the inclined plane because lax on the lax direction, laxly get over the above inclined plane and dally with latch spring 84 with latch spring 84 moving on the backhaul direction.
Direction of operating demarcation strip 90 is fixed into and can't rotates in hand-held portion 12.On this direction of operating demarcation strip 90, offer first window 96 and second window 98; This first window 96 supply traction to connect with latch spring 82 and the restriction traction with the moving range of latch spring 82 on lead, and this second window 98 supply lax connect and limit with latch spring 84 relax with the moving range of latch spring 84 on the direction that relaxes.First window 96 and second window 98 are the concentric circular upper shed at center at the rotating shaft 40A with action bars 40.
In addition, action bars 40 is set at traction with respect to the slewing area of the regulation on the reference position P of the single-point of Fig. 6 line expression lead that arrow A is represented and uses opereating specification.In addition, the slewing area of the regulation of lax direction arrow B is represented with respect to reference position P of action bars 40 is set at the lax opereating specification of using.In addition; Traction only engages with first projection 92 of drive plate 88 via first window 96 of direction of operating demarcation strip 90 in opereating specification in said traction with latch spring 82; In addition, laxly only laxly engage with second projection 94 of drive plate 88 via second window 98 of direction of operating demarcation strip 90 in opereating specification said with latch spring 84.That is, set traction through first window 96 and use opereating specification, set the lax opereating specification of using through second window 98.
According to this one-way clutch 80; By the traction of first window 96 restriction with opereating specification in; When to metal wire lead (removing Cheng Fangxiang) the rotating operation bar 40 shown in the arrow A, engage with first projection 92 from first window 96 with latch spring 82 owing to draw, so drive plate 88 is rotated; Its rotatory force is transmitted to pulley 74 via the reducing gear portion with gear 64, thereby metal wire 46 is by pulley 74 tractions.At this moment, relaxing does not engage with second projection 94 with direction of operating demarcation strip 90 butts with latch spring 84, dallies with respect to drive plate 88 with latch spring 84 thereby relax.
And, in drawing, make action bars 40 when the backhaul direction is rotated with opereating specification, traction is dallied with the inclined plane of latch spring 82 last first projections 92.Therefore, in the rotation on the said backhaul direction of action bars 40, not to pulley 74 transferring power.
And when when going Cheng Fangxiang that action bars 40 is rotated once more, as stated, drive plate 88 rotates, thus power to pulley 74 transmit and metal wire 46 by pulley 74 tractions.Action bars 40 is rotated in drawing with opereating specification repeatedly, advance thereby metal wire 46 is drawn by pulley 74 gradually.In this case, the operational ton of action bars 40 increases to some extent, can draw metal wire 46 with less operating physical force through reducing gear portion.
Next; Make under the lax situation of metal wire 46, by second window, 98 restrictions lax with opereating specification in, when making action bars 40 to lax direction (the removing Cheng Fangxiang) rotation of the metal wire shown in the arrow B; Engage with second projection 94 from second window 98 with latch spring 84 owing to relax; Therefore drive plate 88 is to rotating with previous opposite direction, and its rotatory force is transmitted to pulley 74 via the reducing gear portion with gear 64, thereby metal wire 46 relaxes from pulley 74 back-rolls.At this moment, traction does not engage with first projection 92 with direction of operating demarcation strip 90 butts with latch spring 82, and therefore traction is dallied with respect to drive plate 88 with latch spring 82.
And, when make action bars 40 lax with opereating specification in when the backhaul direction is rotated, relax and dally with the inclined plane of latch spring 84 last second projections 94.Thus, in the rotation on the said backhaul direction of action bars 40, not to pulley 74 transferring power.
And through making action bars 40 to going Cheng Fangxiang to rotate once more, and drive plate 88 rotates as above-mentioned, so metal wire 46 is from pulley 74 back-rolls and relax.Action bars 40 is rotated in relaxing with opereating specification repeatedly, thereby metal wire 46 is lax by gradually.
As previously discussed, through the slewing area of using first window 96, second window 98 to come restriction operation bar 40, can stablize and utilize that action bars 40 draws, loose operations.
Next, with reference to (A), (B) of Fig. 8, another example of one-way clutch 100 is described.
One-way clutch 100 shown in this figure has the one-way clutch 104 that one-way clutch 102 that draw operations uses and loose operations are used.In addition, first bar 108 that action bars 106 possesses traction metal wire 46 links via one-way clutch 102 and gear 64 with second bar, 110, the first bars 108 that metal wire 46 is relaxed, and second bar 110 links via one-way clutch 104 and gear 64.
According to this bar structure, when when lead is carried out rotating operation to first bar 108, metal wire 46 is pulled, and at this moment, second bar 110 dallies with respect to gear 64.In addition, make in that second bar 110 is carried out rotating operation under the lax situation of metal wire 46, first bar 108 is with respect to gear 64 idle running.
In this bar structure, similarly, going Cheng Fang upwards to carry out rotating operation repeatedly through utilizing first bar and second bar 108,110, metal wire 46 is pulled and is relaxed.
In above-mentioned embodiment, narrated and utilized action bars that reducing gear portion is carried out the example of rotating operation, but also can utilize motor reducing gear portion to be provided the structure of power.In this case; With the action bars of above-mentioned manual type likewise; Preferably come operating motor through lifting up bar, this is lifted up bar and is arranged on the position that hands (for example, the thumb of left hand) that operator only utilizes the top to hand-held operating portion 12 to keep just can operate.
In addition, because life-time service and metal wire 46 elongations etc., thereby during surplus long the increasing of metal wire 46, deterioration appears in initial rigid variable performance.So, for the variable hardness performance recovery that makes deterioration to original state, and with metal wire 46 at pulley 74 and connect airtight separated into two parts between the fixed component 50 of spring 44, and surplus long guiding mechanism (length adjustment member) is set betwixt.
Next, use Fig. 9, Figure 10, this length adjustment member 52 is described.
Fig. 9 is the axonometric chart of structure that expression possesses the haulage gear portion of length adjustment member 52.
As shown in Figure 9; Between fixed component that connects airtight spring 44 50 and pulley 74 (being accommodated among the figure in the pulley shell 56); Metal wire 46 blocked the metal wire (variable hardness side metal wire) 46 that becomes to connect airtight spring 44 sides and these two parts of metal wire (traction metal wire) of pulley 74 sides, length adjustment member 52 is set betwixt.
That is, the haulage gear portion shown in this figure comprises fixed component 50, length adjustment member 52, traction metal wire 54, pulley shell 56 (there is pulley 74 inside), worm gear 58, worm screw 60, spur gear 62 and the gear 64 that connects airtight spring 44 towards action bars 40 from metal wire (metal wire of variable hardness side) 46.
Constitute worm gearing by worm gear 58 and worm screw 60, constitute reducing gear portion by this worm gearing, spur gear 62 and gear 64.Need to prove that reducing gear portion is not limited to the structure that is made up of gear, also can be based on the reducing gear portion of chain, conveyer belt.
In Fig. 9, as stated, the other end that connects airtight spring 44 is fixed in the fixed component 50 that connects airtight spring 44 through soldering etc.Fixed component 50 is passed in the end of metal wire 46, links with traction metal wire 54 via length adjustment member 52.
Shown in Figure 10 (A), (B), length adjustment member 52 is made up of with sleeve nut's 68 grades the external screw thread 66 of tubular.Metal wire 46 is inserted into external screw thread 66, is fixed with the card ball 70 as the anticreep member in its end.On the other hand, traction metal wire 54 is inserted into sleeve nut 68, is fixed with the card ball 72 as the anticreep member in its end.Shown in Figure 10 (A), make external screw thread 66 and sleeve nut 68 screw togather the length that to regulate metal wire 46 through adjusting its amount of screwing togather.Need to prove; Sleeve nut 68 is owing to the lax action of the traction of metal wire 46 is slided; In order to prevent to break, preferably be provided with and metal wire 46 moved along the lax track of traction the sleeve steering spare (not shown) of said slip channeling conduct because of its track instability makes metal wire 46 receive the power of not expecting.In addition; For metal wire 46 and external screw thread 66, metal wire 54 and sleeve nut 68 connecting portion separately; Because rigidity sharply changes and breaks at metal wire 46,54 places easily, in order to prevent this situation, and anti-folding member such as rubber tube is set preferably.
In Fig. 9,, therefore omit the detailed description that it moves etc. because the structural element beyond the length adjustment member 52 is identical with structure illustrated in fig. 5.
Need to prove; So; Under the situation that is provided with length adjustment member 52, the metal wire 46 when preventing to utilize eccentric pulley 74 traction metal wires 46 and the broken string that slip causes that contacts of rearward end of connecting airtight spring or fixed component 50, and metal wire position regulation member 76 need be set.Under the situation of Fig. 9, also can metal wire position regulation member 76 be set to length adjustment member 52 and the metal wire 46 (in the metal wire 46 of expression,, it being prolonged a little in the drawings) that connects airtight between the rearward end of spring though the length of this part is short.
Shown in as described above, according to this embodiment, the center of rotation off-centre through making circular pulley etc.; And the eccentric rotary body of rolling is set, therefore at the little traction initial stage of pull strength, with respect to operational stroke; Can increase drawing length; And,, can reduce drawing length with respect to operational stroke in the big traction second half section of pull strength.And then, can improve the operability of haulage gear (variable hardness mechanism).
In addition; The metal wire tractive unit of hardness guiding mechanism is arranged on the top of the hand-held portion of endoscope; For example shown in Figure 1; Action bars is configured in the scope that the finger of the one hand of the operator that the top of hand-held operating portion is controlled can reach, thereby can only utilizes one hand (for example left hand), easily operate with less power.
In addition; At haulage gear (based on the roll-up mechanism of pulley) and connect airtight between the fixed component of spring metal wire position limit structure is set; So that when maximum is drawn with the lead of the metal wire after fixed component has just been drawn with connect airtight spring and become the position limit that a collinear mode is carried out metal wire coaxially; Thereby can prevent the broken string of metal wire, the increase of the pull strength when preventing maximum the traction.
In addition, variable hardness adjustment part, metal wire tractive unit and connect airtight the top that the spring fixed part can be configured in hand-held portion together.For example, shown in Fig. 3 arrow, will lean on the hand-held portion of upside to form the function expanding module, handle as standalone module than connecting airtight the spring fixed component.Thus, compare with the situation between the flexible part, safeguard easily with they being configured in hand-held portion.
More than; Though endoscope and hardness adjusting device to this utility model have carried out detailed explanation; But this utility model is not limited to above example, and self-evident is in the scope of the purport that does not break away from this utility model, can carry out various improvement and distortion.
Claims (10)
1. a hardness adjusting device is adjusted the flexible of flexible part of endoscope insertion part, it is characterized in that possessing:
Connect airtight helical spring, it is configured in the said flexible part of said endoscope insertion part, and can change the said flexible of this flexible part;
Metal wire, itself and saidly connect airtight helical spring leading section and be fixed together, and saidly connect airtight helical spring mode and be provided with to pass;
Fixed mechanism, it connects airtight helical spring rearward end and fixes said;
The eccentric rotary body of rolling, it draws said metal wire, reels said metal wire and said metal wire is rolled at its outer peripheral face;
The metal wire position restriction mechanism; It is configured in said eccentric rolling on rotary body and the said assigned position that connects airtight between the helical spring rearward end, so that the lead that said assigned position and said connects airtight the said metal wire between the helical spring rearward end is connected airtight the position that the consistent mode of helical spring axis limits said metal wire with said.
2. hardness adjusting device according to claim 1 is characterized in that,
The said eccentric rotary body of rolling has eccentric sheave.
3. hardness adjusting device according to claim 1 and 2 is characterized in that,
Said metal wire position restriction mechanism is configured in following position, that is, the said rotary body of rolling carries out maximum when traction, said metal wire and the discontiguous position of said metal wire position restriction mechanism to said metal wire.
4. hardness adjusting device according to claim 1 and 2 is characterized in that,
Said metal wire position restriction mechanism is used in guiding groove, hole or the rotary body that slides swimmingly any and is constituted.
5. hardness adjusting device according to claim 1 and 2 is characterized in that,
Said hardness adjusting device also possesses reducing gear, and this reducing gear has to be provided rotary driving force and to the said eccentric rotary body of rolling self worm gearing of brake force is provided the said rotary body of rolling.
6. hardness adjusting device according to claim 5 is characterized in that,
In said reducing gear binding action bars is arranged, this action bars rotates the hand-held portion of endoscope that is arranged on freely.
7. hardness adjusting device according to claim 6 is characterized in that,
Said reducing gear and said action bars link together via one-way clutch,
Said one-way clutch is optionally operated by the said traction of rolling the said metal wire that rotary body carries out and lax; Thereby the rotation of removing Cheng Fangxiang that can utilize said action bars comes said reducing gear is carried out transmission of power, and utilizes the rotation of the backhaul direction of said action bars that said action bars is dallied with respect to said reducing gear.
8. an endoscope possesses the flexible hardness adjusting device of adjusting to the flexible part of endoscope insertion part, it is characterized in that,
Said hardness adjusting device possesses:
Connect airtight helical spring, it is configured in the said flexible part of said endoscope insertion part, and can change the said flexible of this flexible part;
Metal wire, itself and saidly connect airtight helical spring leading section and be fixed together, and saidly connect airtight helical spring mode and be provided with to pass;
Fixed mechanism, it connects airtight helical spring rearward end and fixes said;
The eccentric rotary body of rolling, it draws said metal wire, and reels said metal wire and said metal wire is rolled at its outer peripheral face;
The metal wire position restriction mechanism; It is configured in said rolling on rotary body and the said assigned position that connects airtight between the helical spring rearward end, so that said assigned position and said lead of connecting airtight the said metal wire between the helical spring rearward end are carried out position limit with the said consistent mode of helical spring axis of connecting airtight to said metal wire.
9. endoscope according to claim 8 is characterized in that,
The said eccentric rotary body of rolling has eccentric sheave.
10. according to Claim 8 or 9 described endoscopies, it is characterized in that,
And, roll the scope that one hand that action bars that rotary body drives is arranged on the operator of the hand-held portion of controlling endoscope can be operated to said.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010228744A JP2012081010A (en) | 2010-10-08 | 2010-10-08 | Endoscope and hardness adjusting device |
| JP2010-228744 | 2010-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202235277U true CN202235277U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120381938 Expired - Lifetime CN202235277U (en) | 2010-10-08 | 2011-09-30 | Endoscope and hardness adjusting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012081010A (en) |
| CN (1) | CN202235277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105960191A (en) * | 2014-02-07 | 2016-09-21 | 奥林巴斯株式会社 | Traction balance adjustment mechanism, manipulator, and manipulator system |
| EP3202303A4 (en) * | 2015-05-28 | 2018-10-31 | Olympus Corporation | Endoscope |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016042833A1 (en) | 2014-09-16 | 2016-03-24 | オリンパス株式会社 | Endoscope |
| JP5877288B1 (en) * | 2014-09-16 | 2016-03-02 | オリンパス株式会社 | Endoscope |
| JP6329041B2 (en) * | 2014-09-17 | 2018-05-23 | Hoya株式会社 | Endoscope bending operation mechanism |
| CN113459165B (en) * | 2021-07-19 | 2022-07-08 | 燕山大学 | Single-degree-of-freedom bionic mechanism based on non-circular gear control |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07136104A (en) * | 1993-11-18 | 1995-05-30 | Fuji Photo Optical Co Ltd | Binding operator for endoscope |
| JP3798884B2 (en) * | 1997-06-12 | 2006-07-19 | オリンパス株式会社 | Endoscope |
| JP2002360507A (en) * | 2001-06-07 | 2002-12-17 | Pentax Corp | Flexibility variable endoscope |
| JP3984063B2 (en) * | 2002-02-05 | 2007-09-26 | ペンタックス株式会社 | Flexible variable endoscope |
| JP2008142199A (en) * | 2006-12-07 | 2008-06-26 | Olympus Corp | Endoscope and curve operation device of endoscope |
-
2010
- 2010-10-08 JP JP2010228744A patent/JP2012081010A/en not_active Ceased
-
2011
- 2011-09-30 CN CN 201120381938 patent/CN202235277U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105960191A (en) * | 2014-02-07 | 2016-09-21 | 奥林巴斯株式会社 | Traction balance adjustment mechanism, manipulator, and manipulator system |
| US10238271B2 (en) | 2014-02-07 | 2019-03-26 | Olympus Corporation | Traction balance adjustment mechanism, manipulator and manipulator system |
| EP3202303A4 (en) * | 2015-05-28 | 2018-10-31 | Olympus Corporation | Endoscope |
| US10278567B2 (en) | 2015-05-28 | 2019-05-07 | Olympus Corporation | Endoscope |
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| Publication number | Publication date |
|---|---|
| JP2012081010A (en) | 2012-04-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |