A kind of endoscope headstock and endoscopeTechnical field
The present invention relates to medical instruments field, more particularly, to the headstock that operating theater instruments is derived on a kind of endoscope and shouldWith the endoscope of the headstock.
Background technology
With the development of technology, endoscope is more and more applied to the diagnosis of disease, treatment.Endoscope has oneSeat, the headstock stretches into inside of human body, plays the effects such as guiding operating theater instruments, shooting.In some endoscopes, in order to dispose subjectInterior desired position at endoscope headstock, it is necessary to change the derivation direction of operating theater instruments, such endoscope of current main flowBearing, lift pincers device and steel wire rope are included, bearing is provided with the instrument channel passed through for operating theater instruments, and lift pincers device is placed on apparatusThe exit of passage, is connected by a rotating shaft with bearing, and lift pincers device rotates around the axis under the drive of steel wire rope, so that will operationApparatus is lifted, and headstock also includes that one is fixedly connected on the front cover on bearing, and front cover plays the part sealed envelope in headstockCome, instrument channel and steel-cable channel outside, sterilization are respectively washed using after finishing by instrument channel and steel-cable channel exposure.But this structure existing defects：Because the exit of steel-cable channel connects with the exit of instrument channel, therefore in exitThe problem for being easy to wirerope-winding operating theater instruments, inconvenience is brought to actually used.
To solve the above problems, also there is a kind of endoscope at present, the exit of steel-cable channel and apparatus on its headstockThe exit of passage is separated by partition wall, and partition wall is provided with through hole, and a connection rotating shaft passes through the through hole, two ends respectively with liftPincers device, steel wire rope connection, can so avoid wirerope-winding operating theater instruments.Additionally, in order to avoid body fluid, thimerosal etc. pass throughInstrument channel enters steel-cable channel, is sealed by sealing ring between connection rotating shaft and partition wall, and headstock also includes the company of fixationThe front cover on bearing is connected on, front cover gets up the part sealed envelope in headstock, and front cover is combined with sealing ring, makes steel wireRope passage forms airtight sexual isolation relative to instrument channel.Using after finishing need to only cleaning and sterilizing, steel wire be carried out to instrument channelRope passage is not required to cleaning and sterilizing because by airtight sexual isolation, not reaching extraneous body fluid, can so simplify cleaning and sterilizingOperation.However as the increase of use time, sealing ring is easy to because abrasion, aging and the problem of seal failure occur, thisSealing can not only be played a part of, body fluid and thimerosal is entered steel-cable channel so that sterilization thoroughly, is not causedPollution, causes scrapping in advance for headstock, old friends be badly in need of it is a kind of can both avoid wirerope-winding apparatus, and can thorough disinfectionEndoscope.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of endoscope headstock, and applies the endoscope headstockEndoscope.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of endoscope headstock, including bearing, lift pincers device and steel wire rope, bearing are provided with instrument channel and steel-cable channel, steelCord is located in steel-cable channel, and its end is connected with lift pincers device, and also including a front cover, front cover is removably attachable to branchOn seat, and when front cover is connected with bearing, at least be coated on for the outlet of steel wire rope and steel-cable channel interior by front cover.
Used as the further improved procedure of such scheme, front cover realizes the lock with the bearing by the motion of relative seatDetermine the switching between connection status and unblock released state.
Used as the further improved procedure of such scheme, bearing is provided with a snap fit, and front cover is provided with and is passed through for snap fitThe first hole, and for snap fit through after the front cover again with the second hole of the front cover hook joint.
Used as the further improved procedure of such scheme, hole is circumferentially distributed along front cover turning circumference.
Used as the further improved procedure of such scheme, front cover is provided with a breach, is extended with a side of breachBreach is separated into the first hole and the second hole by one block, the block.
Used as the further improved procedure of such scheme, snap fit includes colluding with portion and support division, colludes with portion and is hooked with the second holeConnect, support division is supported with block and hook into direction along being in reverse to snap fit to limit front cover after the portion that colludes with and the second hole hook jointMotion.
Used as the further improved procedure of such scheme, breach includes the breach of a sector, circular arc of the block located at breachBian Shang.
Used as the further improved procedure of such scheme, front cover can relative seat moving radially along the bearing, firstHole is distributed with the second hole along the mobile route of front cover.
Used as the further improved procedure of such scheme, also including flexible sheath, flexible sheath is socketed in the outer of front coverSide, and during snap fit passes through side wall, flexible sheath is supported by snap fit and elastic deformation occurs, and then it is anti-to give front coverTo the active force for hooking into snap fit direction.
Used as the further improved procedure of such scheme, steel-cable channel is respectively in the both sides of a partition wall with instrument channel,Partition wall is provided with a through hole, and a bent axle is plugged with the through hole, and the two ends of bent axle are connected with lift pincers device, steel wire rope respectively.
A kind of endoscope, including above-mentioned endoscope headstock.
The beneficial effects of the invention are as follows：
Front cover can be closed to steel wire rope with steel-cable channel, it is to avoid body fluid is directly entered in steel-cable channel, again may be usedSteel-cable channel is rinsed with by way of dismantling front cover, such that it is able to eliminate sterilization dead angle；Without volume at rotating shaftOuter setting sealing ring, therefore in the absence of there is the problem of seal failure because of ring wear；Can realize that the quick of front cover is torn openDress, contributes to time-consuming, raising efficiency.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is first schematic perspective view of embodiment of endoscope headstock of the present invention；
Fig. 2 is the schematic perspective view that headstock of the present invention shows snap fit；
Fig. 3 is the decomposing schematic representation of present invention lift pincers device and bent axle；
Fig. 4 is the schematic perspective view of front cover one embodiment of the present invention；
Fig. 5 is the schematic diagram before front cover of the present invention is connected with bearing；
Fig. 6 is the schematic diagram during front cover of the present invention is connected with bearing；
Fig. 7 is the schematic diagram after front cover of the present invention is connected with bearing；
Fig. 8 is the decomposing schematic representation of front cover of the present invention and flexible sheath；
Fig. 9 is the sectional view after the connection of front cover of the present invention, flexible sheath and bearing.
Specific embodiment
The technique effect of design of the invention, concrete structure and generation is carried out clearly below with reference to embodiment and accompanying drawingChu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that in situation about not conflictingUnder, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that unless otherwise specified, when a certain feature is referred to as " fixation ", " connection " in another feature,It can directly fix, be connected in another feature, it is also possible to fix indirectly, be connected in another feature.Additionally, thisThe description such as upper and lower, left and right used in invention is only that the mutual alignment of each part of the invention relative in accompanying drawing is closedFor system.
Additionally, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the artThe implication that personnel are generally understood that is identical.Term used in the description is intended merely to describe specific embodiment herein, withoutIt is to limit the present invention.Term as used herein " and/or " include the arbitrary of one or more related Listed ItemsCombination.
Reference picture 1, shows first schematic perspective view of embodiment of endoscope headstock of the present invention, and front end is concealed in figureCover.As illustrated, the agent structure of headstock includes bearing 100, the middle part of bearing 100 has instrument channel 101, the instrument channel101 exit is provided with lift pincers device 200, and operating theater instruments is lifted after being stretched out by instrument channel 101 by lift pincers device 200.Apparatus leads toThe side in road has mounting seat 102, and aqueous vapor spout 103, imaging lens 104 and light source 105 are sequentially provided with mounting seat 102, onStating lift pincers device 200, instrument channel 101, aqueous vapor spout 103, imaging lens 104 and light source 105 etc. can use prior art,This is not described further.
The side of bearing 100 is additionally provided with steel-cable channel 106, and steel-cable channel 106 passes through wallboard 107 and instrument channel101 separate, and after steel wire rope 300 stretches out from steel-cable channel 106, are connected with lift pincers device 200 by bent axle 400.
Additionally, on bearing 100, being specifically provided with a snap fit 108 in the end of mounting seat 102, the snap fit 108 is along headstockLength direction stretches out.Further, the snap fit 108 in the present embodiment includes colluding with portion 1081, support division 1082 and connecting portion1083, specifically as shown in Fig. 2 connecting portion 1083 stretches out from the end face of mounting seat 102, support division 1082 is fixed on connecting portion 1083End, its towards the side of the end face of mounting seat 102 be provided with one it is parallel with mounting seat end face support plane 1084, collude with portion1081 are approximately a rectangular block, and it is located at the side for supporting plane 1084, and end face towards mounting seat 102 stretches out, so that hookingThe end face of knot 1081 and support between plane 1084 and there is difference in height.
Reference picture 3, shows present invention lift pincers device and the decomposing schematic representation of bent axle, and front cover is equally concealed in figure.Such asShown in figure, bent axle 400 is preferably " L " type, and its one end is consolidated after passing through the through hole 109 on wallboard 107 with lift pincers device 200, anotherEnd consolidates with steel wire rope 300, the purpose that steel wire rope 300 drives lift pincers device 200 to rotate so can have both been realized, while steel wire rope300 are located in two passages respectively with lift pincers device 200, and steel wire rope 300 can be avoided to wind operating theater instruments.
Reference picture 4, shows the schematic perspective view of front cover one embodiment of the present invention, as illustrated, front cover is preferredThe side wall 520 set including an end wall 510 and along the circumference of end wall 510, it is incomplete that end wall 510 forms one with side wall 520Tubular structure.When front cover is connected with bearing 100, lift pincers device 200 can drive operating theater instruments from the tubular structure side wallOpenwork part stretch out.
End wall 510 is provided with the breach of an almost fan, and a block 530, the gear are extended with the circular arc side of the breachBreach is divided into the first hole 501 and the second hole 502 by block 530, wherein the size in the first hole 501 should be more than the chi of snap fit 108Very little, so that snap fit 108 can be passed through from the first hole 501, the size in the second hole 502 should be greater than colluding with the size in portion 1081, withAllow to collude with portion 1081 to hook into the second hole 502.
Reference picture 5 respectively illustrates the connection diagram of front cover of the present invention and bearing, front cover in the present invention to Fig. 7500 are removably attachable on bearing 100, when endoscope is used, are realized and the bearing by the motion of relative seat 100Locking connection status and unblock released state between switching.Specifically as shown in figure 5, front cover 500 is covered in the direction of the arrowIn the end of bearing 100, snap fit 108 passes through end wall 510 by the first hole 501, until reaching the state shown in Fig. 6, Ran HouqianThe direction of arrow along Fig. 6 of end shield 500 is rotated, and the portion 1081 that colludes with of snap fit 108 is hooked into the second hole 502, on support division 1082Support plane 1084 to be supported with the end face 531 of block, limitation front cover 500 is along the direction for hooking into the portion that colludes with 1,081 second hole（Hereinafter referred to as hook into direction）Rightabout motion；Collude with the both sides side wall in portion 1081 then respectively with the side wall 532 of block withAnd second the side wall 503 in hole 502 support, the rotation of the relative seat 100 of front cover 500 is limited, until reaching the shape shown in Fig. 7State, now the relative seat 100 of front cover 500 fix；During unblock, need to only drive front cover 500 a bit of along direction advance is hooked intoDistance, makes to collude with portion 1081 and is exited from the second hole 502, then rotates backward front cover 500 and make to collude with portion 1081 to be directed at the first hole501, it is last to exit the first hole 501 along with hooking into direction in opposite direction and move.
The present invention has advantages below relative to prior art：Will by unshowned structure when front cover is connected with bearingThe outlet of steel wire rope and steel-cable channel can avoid body fluid from being directly entered in steel-cable channel in being coated on, and in front coverWhen being separated with bearing, directly steel-cable channel can be rinsed, such that it is able to eliminate sterilization dead angle.On the other hand, rotating shaftPlace sets sealing ring without extra, because even there is a small amount of body fluid to enter steel-cable channel from the junction of bent axle and wallboard,Front cover can also be dismantled directly to carry out disinfection steel-cable channel, therefore the present invention because of ring wear in the absence of sealingThe problem of failure.
The invention also discloses front cover relative seat motion locking and another embodiment for unlocking, snap fit passes through front endBehind the first hole on cover, front cover makes snap fit align the second hole, i.e. front cover by translational motion replacement by the translation of radial directionRotate, but this kind of mode can increase the radial dimension of front cover, therefore present invention preferably employs the mode for rotating.
It is worth noting that, the first hole in the present invention can both be interconnected as shown in FIG. with the second hole, it is also possible toIt is two independent holes, the end wall between two independent holes can play a part of block.
Front cover is limited by support division along being in reverse to snap fit and hook into the motion in direction in above-described embodiment, but it still may be usedMoved with along the direction that snap fit is hooked into, cause to exist between front cover and bearing the risk for coming off, based on this, the present invention is also proposedSecond embodiment, it is that a flexible sheath is socketed with the outside of front cover with the difference of one embodiment, referenceFig. 8, Fig. 9, Fig. 8 show the decomposing schematic representation of front cover and flexible sheath, and Fig. 9 shows front cover, flexible sheath and bearingSectional view after connection, as illustrated, flexible sheath 600 is connected to the outside of front cover 500 by buckle structure, its endInwall has a groove, because the mitigation of groove is acted on, one is formed on the end wall of flexible sheath 600 and is easier to elastic deformationThinner wall section 610.During snap fit 108 passes through the end wall 510 of front cover 500, snap fit 108 is stretched between groove, supports thin-walledPortion 610 brings it about elastic deformation, and then indirectly gives front cover 500 and be in reverse to the active force for hooking into direction.In this way, front endThe end wall 510 of cover 500 is supported with support division 1082, and its edge is in reverse to and hooks into the motion in direction and limited by support division 1082, whileThinner wall section 610 is supported with snap fit 108, is again limited front cover edge and is hooked into the motion in direction, therefore front cover 500 can be realized with branchSeat 100 is completely fixed.
The invention also discloses a kind of endoscope apparatus of the above-mentioned endoscope headstock of application.
Above is preferable implementation of the invention is illustrated, but the invention is not limited to the implementationExample, those of ordinary skill in the art can also make a variety of equivalent variations or replace on the premise of without prejudice to spirit of the inventionChange, these equivalent deformations or replacement are all contained in the application claim limited range.