CN102058377B - Endoscope tool - Google Patents

Abstract

The invention discloses an endoscope tool comprising a pipe part, a tail end part and a sacculus capable of selectively expanding, wherein the flexibility of the tail end part is substantially higher than the pipe part.

Description

Endoscopic tools

The divisional application that the application is the applying date is on August 8th, 2005, application number is 200580051308.8, denomination of invention is the application for a patent for invention of " endoscope operation of guided by saccule ".

Technical field

Present invention relates in general to endoscope operation (endoscopy), particularly endoscope guides accessory.

Background technology

American documentation literature is below considered to the present art representing this area:

U.S. Patent No. 4,195,637; 4,616,652 and 6,663,589.

Summary of the invention

The present invention attempts to provide a kind of endoscope to guide accessory.

For this reason, according to the preferred embodiment of the present invention, provide a kind of fluid supplying apparatus, for supplying the fluid to the inside of a tubular body portion's part, comprise: at least one first tubular body portion's potted component selectively extended, it is configured to the primary importance of the length that can be positioned on along described tubular body portion, and at least one second tubular body portion's potted component selectively extended, it is configured to can be positioned on the second position along described length, at least one first tubular body portion's potted component selectively extended described and at least one second tubular body portion's potted component selectively extended described are configured to the zone line of the described length limiting described tubular body portion between which, controller, it is configured to optionally be sealed on described tubular body portion by least one first and second tubular body portion's potted component described, and fluid supplying functional parts, it is configured to supply the fluid to described zone line.

Preferably, described fluid supplying apparatus comprises further at least in part along the endoscope that described tubular body portion extends.Preferably, at least one first and second tubular body portion's potted component described can move relative to each other along described length.

Preferably, at least one at least one first and second tubular body portion's potted component described comprises the sacculus of alternative inflation.In addition, the sacculus of alternative inflation comprises stretchable balloon.Or the sacculus of alternative inflation comprises polyurethane balloon.

Preferably, the sacculus of alternative inflation comprises anchoring balloon (anchoring balloon).

Preferably, at least one at least one first and second tubular body portion's potted component described is arranged in the distal part of described endoscope.As an alternative or additional, at least one at least one first and second tubular body portion's potted component described is placed in before described endoscope.

Preferably, described fluid supplying apparatus also comprises fluid suction functionality, for from described zone line pumping fluid.

Preferably, described fluid supplying functional parts adopt the instrument channel of described endoscope.

According to another preferred implementation of the present invention, additionally provide a kind of fluid supplying apparatus, for supplying the fluid to the inside of a tubular body portion's part, comprising: at least one pipe fitting, it at least comprises first, second, and third tube chamber; The anterior sacculus of alternative inflation, itself and described first tube chamber fluid communication, seal described tubular body portion when the anterior sacculus of described alternative inflation is formed at inflation; The rear balloon of alternative inflation, itself and described second tube chamber fluid communication, seal described tubular body portion when the rear balloon of described alternative inflation is formed at inflation; Fluid delivery outlet, it is placed between the front and rear sacculus of described alternative inflation, described outlet and described 3rd tube chamber fluid communication; Controller, it is configured to the front and rear sacculus of optionally alternative inflation described in inflation in described tubular body portion, limits the zone line sealed at least in part thus between which; And fluid supplying functional parts, its be configured to supply the fluid to described in the zone line that seals at least in part.

Preferably, fluid supplying functional parts comprise outer tube member.

Preferably, the outer tube member that the rear balloon inside that fluid supplying functional parts are included in alternative inflation extends.

Preferably, fluid is air.

Preferably, described fluid supplying functional parts are configured to the described zone line of tubular body portion described in inflation.

According to the another preferred implementation of the present invention, additionally provide a kind of endoscope assembly, comprising: endoscope; Outer tube member, itself and described endoscope extend side by side and limit at least one tube chamber; And endoscopic tools, it is configured at least one tube chamber described running through described outer tube member, and described endoscopic tools comprises the sacculus of alternative inflation.

Preferably, the sacculus of alternative inflation is anchoring balloon.

Preferably, described endoscopic tools can at described outer tube member anterior curvature.As additional or alternative, described endoscopic tools can inflation before described endoscope.Preferably, the flexibility of endoscopic tools is in fact higher than endoscope.

Preferably, endoscope assembly also comprises the endoscopy functionality coordinated with described endoscope.Preferably, endoscope assembly also comprises balloon inflation/contraction controller.Preferably, described outer tube member is configured to inserted by it and remove described endoscopic tools.

Preferably, endoscopic tools comprises tube portion and end section.In addition, the flexibility of end section is in fact higher than tube portion.

According to another preferred implementation of the present invention, additionally provide a kind of endoscopic tools, comprising: tube portion; End section; And the sacculus of alternative inflation, described endoscopic tools is configured to the tube chamber running through outer tube member.

Preferably, the flexibility of end section is in fact higher than tube portion.As additional or alternative, inflatable sacculus is arranged on described tube portion.Preferably, the inside of described inflatable sacculus and the inside UNICOM of described tube portion, so that can by inflatable sacculus described in described tube portion inflation.As an alternative or additional, sacculus is anchoring balloon.

According to the another preferred implementation of the present invention, additionally provide a kind of endoscope assembly, comprising: endoscope; The sacculus of alternative inflation, it is installed in the distal part of described endoscope; And outer tube member, itself and described endoscope extend side by side and pass through the sacculus of described alternative inflation.

Preferably, described outer tube member is through the sacculus of described alternative inflation and the distal part of described endoscope.

Preferably, also comprise tubular sleeve, it is installed in the distal part of described endoscope, in the lower floor of the sacculus of described alternative inflation.Preferably, described outer tube member extends through the tubular conduit in the distal part being fixed on described endoscope at least in part.In addition, described outer tube member can slide in described tubular conduit.

Preferably, tubular conduit extends past tubular sleeve.As additional or alternative, tubular conduit comprises the reinforcing element of at least one relative stiffness, and it allows the predefined curved of tubular conduit.Preferably, reinforcing element comprises multiple spaced relative stiffness element.In addition, spaced relative stiffness element is tubulose.

Preferably, endoscope assembly also comprises balloon inflation tube, the sacculus UNICOM of itself and alternative inflation.As additional or alternative, the sacculus of alternative inflation is anchoring balloon.

Preferably, endoscope assembly also comprises accessory, and it can be slid through outer tube member and is placed in before endoscope.

Preferably, endoscope assembly also comprises endoscopic tools, and it extends past outer tube member at least partially, and endoscopic tools comprises the sacculus of alternative inflation.In addition, endoscopic tools can be slid through outer tube member.Or endoscopic tools can not pass outer tube member.

Preferably, endoscopic tools can be slid through tubular conduit.Or endoscopic tools can not pass tubular conduit.

Preferably, the sacculus of the alternative inflation of endoscopic tools is anchoring balloon.As additional or alternative, the sacculus of the alternative inflation of endoscopic tools can inflation before endoscope.

Preferably, endoscope assembly also comprises fluid supplying functional parts, and it is configured to by outer tube member accommodating fluid.

According to another preferred implementation of the present invention, additionally provide a kind of for carrying out the interactional equipment of medical science with tubular body portion, comprising: at least one pipe fitting, it at least comprises the first and second tube chambers; The anterior sacculus of alternative inflation, itself and described first tube chamber fluid communication, engage described tubular body portion when the anterior sacculus of described alternative inflation is formed at inflation; Controller, it is configured to the anterior sacculus of optionally alternative inflation described in inflation; And accessory, it can be placed in the anterior sacculus position below of described alternative inflation through described second tube chamber.

Term " medical science interacts (medicalinteraction) " comprises, and for example, checks, process, diagnosis, sampling, removes, labelling, and other suitable medical behavior any.

Preferably, at least one pipe fitting comprises endoscope.In addition, endoscope comprises instrument channel, and it limits the second tube chamber.

Preferably, describedly also comprising outer tube member for carrying out the interactional equipment of medical science with tubular body portion, limiting one of at least one pipe fitting described of described first tube chamber and extending through described outer tube member slidably.

Preferably, at least one pipe fitting described comprises endoscope and outer tube member, and limits described first tube chamber and extend past the balloon inflation tube of described outer tube member slidably.In addition, the flexibility of balloon inflation tube is in fact higher than endoscope.

Preferably, the anterior sacculus of alternative inflation is anchoring balloon.As additional or alternative, the anterior sacculus of described alternative inflation is optionally placed in before described endoscope.As an alternative or additional, described for carrying out with tubular body portion the rear balloon that the interactional equipment of medical science also comprises alternative inflation.In addition, the rear balloon of alternative inflation is anchoring balloon.Or the rear balloon of alternative inflation is arranged on the outer of the distal part of endoscope and places.

Accompanying drawing explanation

By the detailed description that connection with figures below does, the present invention can be more fully understood and evaluate, in the accompanying drawings:

Fig. 1 is the rough schematic view of the endoscopic system constructing according to the preferred embodiment of the present invention and operate;

Fig. 2,3A, 3B, 4A and 4B are simplified perspective view and the sectional view of a part for endoscope and the accessory part constructing according to the preferred embodiment of the present invention and operate;

Fig. 5 is the rough schematic view of the endoscopic system constructing according to another preferred implementation of the present invention and operate;

Fig. 6,7A, 7B, 8A, 8B, 8C and 8D are simplified perspective view and the sectional view of a part for endoscope and the accessory part constructing according to another preferred implementation of the present invention and operate;

Fig. 9 is the rough schematic view of the endoscopic system according to the present invention's another preferred implementation structure and operation;

Figure 10,11A, 11B, 12A, 12B and 12C are simplified perspective view according to the present invention's another preferred implementation structure and the endoscope of operation and a part for accessory part and sectional view;

Figure 13 is the rough schematic view of endoscopic system according to the present invention a preferred implementation structure and operation again;

Figure 14,15A, 15B, 16A and 16B are according to a present invention's preferred implementation structure and the endoscope of operation and the simplified perspective view of a part of accessory part and sectional view again;

Figure 17 A, 17B, 17C, 17D, 17E, 17F, 17G, 17H, 17I and 17J are the rough schematic views of the various functions that the system in Figure 13-16B can provide; And

Figure 18 A and 18B is the rough schematic view of the function that the system in Figure 13-16B can provide.

Detailed description of the invention

Term " endoscope " and " endoscope operation " use by this way in whole the application, namely more usual than them implication is wider, can refer at body cavity, passage and analog (such as, small intestinal, large intestine, artery and vein) in the equipment of operation and method.Although these terms are often referred to visual inspection, here they are not limited to the application scenario comprising visual inspection, but can also refer to not be equipment, the system and method that must relate to visual inspection.

Term " distally " refers to endoscope, accessory or instrument apart from operator's far-end farthest.

Term " nearside " refers to endoscope, accessory or the instrument end nearest apart from operator, is typically positioned at the outside of relevant organ or body part.

Referring now to Fig. 1-4B, respectively illustrate in figure according to the endoscopic system of the preferred embodiment of the present invention structure and operation and according to each reduced graph of accessory part of the preferred embodiment of the present invention structure and operation and sectional view.

As being shown in Fig. 1-4B, have employed a kind of conventional endoscope system 100, such as control station, comprise CV-100 video system center, CLV-U20 light source, SONY PVM-2030 video-frequency monitor, and OFP flushing pump, all these can purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).System preferably includes conventional endoscope 101, it forms conventional endoscope system 100 part, such as CIF-100 video intestinal mirror or CF-Q 160AL video colonoscope, they can business purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).

According to the preferred embodiment of the present invention, Endoscope-assisted assembly 102 comprises peripheral sacculus 103, and it can be installed in endoscope 101 by means of tubular sleeve 104, as shown in the figure, tubular sleeve is fixed in the distal part of endoscope 101, and is associated with peripheral sacculus 103.

Be appreciated that tubular sleeve 104 can be made up of flexible and ductile material, the siloxanes of such as flexible and ductility, latex (latex) or rubber, make its bending in compliance with endoscope 101 thus.Be further appreciated that the non-tensioning internal diameter of tubular sleeve 104 is less than the diameter of endoscope 101 slightly, allow when it is stretched it be pulled in endoscope 101 and slide thus, guarantee the desired location fixedly positioning in the distal end of endoscope 101 simultaneously.

Such as, or tubular sleeve 104 can be made up of low ductile material, polyurethanes or nylon, and internal diameter is greater than the internal diameter of endoscope 101 slightly, allow its tractive and slip in endoscope 101 thus.Preferably, tubular sleeve 104 has been formed relative thin-walled, to allow its bending in compliance with endoscope 101.Be appreciated that once be positioned in desired location, tubular sleeve 104 can be fastened in endoscope 101 by any suitable traditional measures such as medical adhesive tape.

As being shown in Fig. 1-4B, peripheral sacculus 103 is overlapping tubular sleeve 104 at least in part, and fixed thereon by any suitable traditional measures such as binding agent in both sides of the edge, to limit sealed volume between which.Preferably, the inflation of peripheral sacculus 103 is what to be provided by the pipe fitting 106 of UNICOM inner with it with contraction.By any suitable traditional measures such as medical adhesive tape, pipe fitting 106 can be attached in endoscope 101 along its length on multiple positions.Or pipe fitting 106 can be pulled down by endoscope 101.

Be appreciated that according to the preferred embodiment of the present invention, peripheral sacculus 103 is in fact ductility, and can be inflated to diameter and be approximately it not by the 3-10 of diameter during inflation doubly.According to the preferred embodiment of the present invention, the diameter being applicable to the peripheral sacculus 103 of small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.

In certain embodiments, the diameter being applicable to the peripheral sacculus of small intestine endoscope art when complete inflation is four centimetres.Preferably, peripheral sacculus 103 is inflated to the diameter being less than four centimetres and can utilizes relatively low pressure to realize, such as, in the scope of 30-70 millibar.

In another particular implementation, the diameter being applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In further embodiment, the diameter being also applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation is six centimetres.Preferably, peripheral sacculus 103 is inflated to the diameter being less than six centimetres and can utilizes relatively low pressure to realize, such as, in the scope of 30-70 millibar.

Be appreciated that, according to the preferred embodiment of the present invention, the swell diameter scope being applicable to the peripheral sacculus 103 of the generally tubular human body biopsy with variable cross-section diameter is greater than the maximum cross section diameter of generally tubular human body, thus, the peripheral sacculus 103 expanded can be engaged with the inner surface of generally tubular human body, and grappling endoscope 101 is in this.Preferably, peripheral sacculus 103 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that peripheral sacculus 103 can be made up of the known ductile material be suitable for such as latex, flexible siloxanes or high flexibility nylon.Or peripheral sacculus 103 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of peripheral sacculus 103 is enough to any part guaranteeing to be anchored to generally tubular human body securely.

In a preferred embodiment of the invention, Endoscope-assisted assembly 102 can comprise at least one outer tube member 108.Outer tube member 108 can be attached in endoscope 101 along its length by any suitable traditional measures such as medical adhesive tape on multiple positions.Or outer tube member 108 can be pulled down by endoscope 101.

Be appreciated that outer tube member 108 can be flexible and high flexible, to allow its bending in compliance with endoscope 101.Be further appreciated that outer tube member 108 can be made up of low friction ratio material, such as TEFLON .

In a preferred embodiment of the invention, outer tube member 108 can pass tubular conduit 109, and described tubular conduit extends longitudinally in tubular sleeve 104.Or tubular conduit can be positioned within sleeve but outside endoscope 101.Outer tube member 108 completely or partially can pass tubular conduit 109, can be fixed on tubular sleeve 104 by any traditional measures, such as, by frictional force or by using suitable binding agent.Or outer tube member 108 can slide relative to tubular conduit 109.

Endoscopic tools 110 according to the preferred embodiment of the present invention structure and operation extends past outer tube member 108.Endoscopic tools 110 preferably includes guiding pipe elements 112, and described guiding pipe elements at least comprises the first tube chamber 114, for passing through inflation opening 118 inflation and shrinking sacculus 116.Preferably, the cross-sectional area of guiding pipe elements 112 is fully less than the cross-sectional area of outer tube member 108, to allow guiding pipe elements 112 roughly freely by outer tube member 108, particularly when outer tube member 108 is in bending or case of bending, and allow through guiding pipe elements for being applied to the fluid of inflation or other purposes and exhaust fluid.

Be appreciated that guiding pipe elements 112 can be flexible and high flexible, to allow it conform to the bending of endoscope 101 and conform to intestinal curve.Be further appreciated that guiding pipe elements 112 can be made up of low friction ratio material, such as TEFLON .

Preferably, the distal end that guiding pipe elements 112 is positioned at before sacculus 116 at it is sealed in any suitable manner, such as, by the binding agent that mechanical seal or use are applicable to, so that through guiding pipe elements 112 inflation and contraction sacculus 116.

Preferably, endoscopic tools 110 comprises the end section 119 in the distally being positioned at sacculus 116.End section 119 can be made up of high flexibility pipe fitting, such as TYGON pipe fitting, diameter is 1.5 millimeters.The binding agent that end section 119 such as can be suitable for by any traditional measures is connected to the distal end of guiding pipe elements 112.In a preferred embodiment of the invention, the length of end section 119 is 20-30 millimeter.

Be appreciated that the high flexible of end section 119 can prevent endoscopic tools 110 to adhere to above on barrier and bending in endoscope 101 when it is advanced past generally tubular human body.

Be appreciated that according to the preferred embodiment of the present invention, the flexibility of endoscopic tools 110 and guiding pipe elements 112 is in fact higher than endoscope 101.

Be further appreciated that according to the preferred embodiment of the present invention, the flexibility of pipe fitting 106 is in fact higher than endoscope 101.

Be appreciated that according to the another preferred implementation of the present invention, the flexibility of outer tube member 108 is in fact higher than endoscope 101.

Be appreciated that according to the preferred embodiment of the present invention, sacculus 116 is in fact ductility, and can be inflated to diameter and be approximately it not by the 5-20 of diameter during inflation doubly.In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation is four centimetres.Preferably, balloon inflation 116 can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.According to another preferred implementation of the present invention, the balloon diameter being applicable to large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In another particular implementation, the balloon diameter being applicable to large intestine endoscope operation when complete inflation is six centimetres.Preferably, balloon inflation 116 can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, according to the preferred implementation being specially adapted to the generally tubular human body biopsy with variable cross-section diameter of the present invention, the range of expansion of the diameter of sacculus 116 is greater than the maximum cross section diameter of generally tubular human body, make the sacculus 116 expanded can engage with the inner surface of generally tubular human body thus, and grappling endoscopic tools 110 is in this.Preferably, sacculus 116 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that sacculus 116 can be made up of known ductile material such as latex, flexible siloxanes or high flexibility nylon.Or sacculus 116 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of sacculus 116 is enough to any position of guaranteeing to be anchored to securely in generally tubular human body.

As being shown in Fig. 1, endoscopic tools 110 preferably includes balloon inflation/contraction control inerface 122, its portions of proximal 123 in guiding pipe elements 112 and guiding pipe elements 112 UNICOM, described portions of proximal extends outside the near-end 124 of outer tube member 108, and the inflation of described control inerface manipulation sacculus 116 and contraction.In addition, be preferably provided with peripheral balloon inflation/contraction control inerface 125, itself and pipe fitting 106 UNICOM, and manipulate inflation and the contraction of peripheral sacculus 103.

Preferably, such as, by band 132 or by other suitable traditional measures any, clip or medical adhesive tape, the near-end 124 of outer tube member 108 is fixed in the portions of proximal of endoscope 101, is adjacent to operator's controller 129 of endoscope 101.Preferably, by relative to outer tube member 108 the controlled traction of near-end 124 or promote the portions of proximal 123 of guiding pipe elements 112, sacculus 116 is placed in the desired location before the distal end of endoscope 101 by operator in generally tubular human body.

Fig. 4 A shows the location backward of endoscopic tools 110, and wherein sacculus 116 is placed in before the next-door neighbour of the distal end of endoscope 101.Locate backward preferably by relative to outer tube member 108 portions of proximal 123 from near-end 124 to rear haulage guiding pipe elements 112 and realize.

Fig. 4 B show endoscopic tools 110 to prelocalization, wherein sacculus 116 is placed in the sizable distance before the distal end of endoscope 101.Realize to prelocalization preferably by the portions of proximal 123 of the near-end 124 driven forward guiding pipe elements 112 relative to outer tube member 108.

Be appreciated that the desired distance of endoscopic tools 110 controlled location before the distal end of endoscope 101 can be realized relative to the suitable controlled location of the near-end 124 of outer tube member 108 by the portions of proximal 123 of guiding pipe elements 112.

Be appreciated that according to the preferred embodiment of the present invention, before the distal end that the sacculus 116 being applicable to the generally tubular human body biopsy with variable cross-section diameter controllably can be positioned at endoscope 101 in the scope of 0-45 centimetre.

As being shown in Fig. 4 A and 4B, sacculus 116 is by anterior sacculus sleeve part 144 and be fixed in guiding pipe elements 112 by rear balloon sleeve part 146, and these two sacculus sleeve parts preferably form one with sacculus 116.As being shown in Fig. 4 A, the cross section external diameter of sleeve part, rear portion 146 is greater than the cross sectional inner diameter of outer tube member 108 and is greater than the cross sectional inner diameter of tubular conduit 109, prevents sacculus 116 through outer tube member 108 and through tubular conduit 109 thus.

Be appreciated that sleeve part, rear portion 146 can be used as block, prevent from drawing guiding pipe elements 112 further it touches tubular sleeve 104 or touches outer tube member 108 during in sleeve part, rear portion 146.

Referring now to Fig. 5-8D, be according to the rough schematic view of the endoscopic system of another preferred implementation of the present invention structure and operation and according to the corresponding reduced graph of accessory part of another preferred implementation of the present invention structure and operation and sectional view in figure.

As being shown in Fig. 5-8D, have employed conventional endoscope system 200, such as control station, comprise CV-100 video system center, CLV-U20 light source, SONY PVM-2030 video-frequency monitor, and OFP flushing pump, all these can purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).System preferably includes conventional endoscope 201, it forms a part for conventional endoscope system 200, such as CIF-100 video intestinal mirror or CF-Q 160AL video colonoscope, they can business purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).

According to the preferred embodiment of the present invention, Endoscope-assisted assembly 202 comprises peripheral sacculus 203, and it can be installed in endoscope 201 by means of tubular sleeve 204, as shown in the figure, described tubular sleeve is fixed in the distal part of endoscope 201, and is associated with peripheral sacculus 203.Be appreciated that tubular sleeve 204 can be made up of flexible and ductile material, the siloxanes of such as flexible and ductility, latex or rubber, make its bending in compliance with endoscope 201 thus.Being further appreciated that the non-tensioning internal diameter of tubular sleeve 204 can be less than the diameter of endoscope 201 slightly, allowing its tractive and slip in endoscope 201 thus when being pulled, guarantee to fixedly positioning in the desired location in the distal end of endoscope 201 simultaneously.

Such as, or tubular sleeve 204 can be made up of low ductile material, polyurethanes or nylon, and internal diameter is greater than the internal diameter of endoscope 201 slightly, allow its tractive and slip in endoscope 201 thus.Preferably, tubular sleeve 204 has been formed relative thin-walled, to allow its bending in compliance with endoscope 201.Be appreciated that once be positioned in desired location, tubular sleeve 204 can be fastened in endoscope 201 by any suitable traditional measures such as medical adhesive tape.

As being shown in Fig. 5-8D, peripheral sacculus 203 is overlapping tubular sleeve 204 at least in part, and fixed thereon by any suitable traditional measures such as binding agent in both sides of the edge, to limit sealed volume between which.Preferably, the inflation of peripheral sacculus 203 is what to be provided by the pipe fitting 206 of UNICOM inner with it with contraction.By any suitable traditional measures such as medical adhesive tape, pipe fitting 206 can be attached in endoscope 201 along its length on multiple positions.Or pipe fitting 206 can be pulled down by endoscope 201.

Be appreciated that according to the preferred embodiment of the present invention, peripheral sacculus 203 is in fact ductility, and can be inflated to diameter and be approximately it not by the 3-10 of diameter during inflation doubly.According to the preferred embodiment of the present invention, the diameter being applicable to the peripheral sacculus 203 of small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.In certain embodiments, the diameter being applicable to the peripheral sacculus of small intestine endoscope art when complete inflation is four centimetres.Preferably, the peripheral sacculus 203 of inflation can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another particular implementation, the diameter being applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In further embodiment, the diameter being also applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation is six centimetres.Preferably, the peripheral sacculus 203 of inflation can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, according to the preferred embodiment of the present invention, the swell diameter scope being applicable to the peripheral sacculus 203 of the generally tubular human body biopsy with variable cross-section diameter is greater than the maximum cross section diameter of generally tubular human body, make the peripheral sacculus 203 expanded can engage with the inner surface of generally tubular human body thus, and grappling endoscope 201 is in this.Preferably, peripheral sacculus 203 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that peripheral sacculus 203 can be made up of the known ductile material be suitable for such as latex, flexible siloxanes or high flexibility nylon.Or peripheral sacculus 203 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of peripheral sacculus 203 is enough to any part guaranteeing to be anchored to generally tubular human body securely.

In a preferred embodiment of the invention, Endoscope-assisted assembly 202 can comprise at least one outer tube member 208.Outer tube member 208 can be attached in endoscope 201 along its length by any suitable traditional measures such as medical adhesive tape on multiple positions.Or outer tube member 208 can be pulled down by endoscope 201.

Be appreciated that outer tube member 208 can be flexible and high flexible, to allow its bending in compliance with endoscope 201.Be further appreciated that outer tube member 208 can be made up of low friction ratio material, such as TEFLON .

In a preferred embodiment of the invention, outer tube member 208 can pass tubular conduit 209, and described tubular conduit extends longitudinally in tubular sleeve 204.Or tubular conduit can be positioned within sleeve but outside endoscope 201.Outer tube member 208 completely or partially can pass tubular conduit 209, can be fixed on tubular sleeve 204 by any traditional measures, such as, by frictional force or by using suitable binding agent.Or outer tube member 208 can slide relative to tubular conduit 209.

Endoscopic tools 210 according to the preferred embodiment of the present invention structure and operation extends past outer tube member 208.Endoscopic tools 210 preferably includes guiding pipe elements 212, and described guiding pipe elements at least comprises the first tube chamber 214, for passing through inflation opening 218 inflation and shrinking sacculus 216.Preferably, the cross-sectional area of guiding pipe elements 212 is fully less than the cross-sectional area of outer tube member 208, to allow guiding pipe elements 212 roughly freely by outer tube member 208, particularly when outer tube member 208 is in bending or case of bending, and allow through guiding pipe elements for being applied to the fluid of inflation or other purposes and exhaust fluid.

Be appreciated that guiding pipe elements 212 can be flexible and high flexible, to allow it conform to the bending of endoscope 201 and conform to intestinal curve.Be further appreciated that guiding pipe elements 212 can be made up of low friction ratio material, such as TEFLON .

Preferably, the distal end that guiding pipe elements 212 is positioned at before sacculus 216 at it is sealed in any suitable manner, such as, by the binding agent that mechanical seal or use are applicable to, so that through guiding pipe elements 212 inflation and contraction sacculus 216.

Preferably, endoscopic tools 210 can comprise the end section 219 in the distally being positioned at sacculus 216.End section 219 can be made up of high flexibility pipe fitting, such as TYGON pipe fitting, diameter is 1.5 millimeters.The binding agent that end section 219 such as can be suitable for by any traditional measures is connected to the distal end of guiding pipe elements 212.In a preferred embodiment of the invention, the length of end section 219 is 20-30 millimeter.

Be appreciated that the high flexible of end section 219 can prevent endoscopic tools 210 to adhere to before endoscope 201 when it is advanced past generally tubular human body on barrier and bending.

Be appreciated that according to the preferred embodiment of the present invention, the flexibility of endoscopic tools 210 and guiding pipe elements 212 is in fact higher than endoscope 201.

Be further appreciated that according to the preferred embodiment of the present invention, the flexibility of pipe fitting 206 is in fact higher than endoscope 201.

Be appreciated that according to the another preferred implementation of the present invention, the flexibility of outer tube member 208 is in fact higher than endoscope 201.

Be appreciated that according to the preferred embodiment of the present invention, sacculus 216 is in fact ductility, and can be inflated to diameter and be approximately it not by the 5-20 of diameter during inflation doubly.In the particular implementation being applicable to small intestine endoscope art, balloon diameter when complete inflation in the scope of 3-4 centimetre.In the particular implementation being applicable to small intestine endoscope art, balloon diameter when complete inflation is four centimetres.Preferably, balloon inflation 216 can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another preferred implementation of the present invention, the balloon diameter being applicable to large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In another particular implementation, the balloon diameter being applicable to large intestine endoscope operation when complete inflation is six centimetres.Preferably, balloon inflation 216 can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, the range of expansion being specially adapted to the diameter of the sacculus 216 of the preferred implementation of the generally tubular human body biopsy with variable cross-section diameter according to the present invention is greater than the maximum cross section diameter of generally tubular human body, make the sacculus 216 expanded can engage with the inner surface of generally tubular human body thus, and grappling endoscopic tools 210 is in this.Preferably, sacculus 216 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that sacculus 216 can be made up of known ductile material such as latex, flexible siloxanes or high flexibility nylon.Or sacculus 216 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of sacculus 216 is enough to any position of guaranteeing to be anchored to securely in generally tubular human body.

As being shown in Fig. 5, endoscopic tools 210 preferably includes balloon inflation/contraction control inerface 222, its portions of proximal 223 in guiding pipe elements 212 and guiding pipe elements 212 UNICOM, described portions of proximal extends outside the near-end 224 of outer tube member 208, and the inflation of described control inerface manipulation sacculus 216 and contraction.In addition, be preferably provided with peripheral balloon inflation/contraction control inerface 225, itself and pipe fitting 206 UNICOM, and manipulate inflation and the contraction of peripheral sacculus 203.

Preferably, such as, by band 232 or by other suitable traditional measures any, clip or medical adhesive tape, the near-end 224 of outer tube member 208 is fixed in the portions of proximal of endoscope 201, is adjacent to operator's controller 229 of endoscope 201.

Preferably, operator passes through relative to the controlled traction of near-end 224 of outer tube member 208 or the portions of proximal 223 of promotion guiding pipe elements 212 by sacculus 216 in the desired location of generally tubular human body inner position before the distal end of endoscope 201.

Fig. 8 A shows and locates endoscopic tools 210 backward, and wherein sacculus 216 is placed in before the next-door neighbour of the distal end of endoscope 201.Locate backward preferably by relative to outer tube member 208 portions of proximal 223 from near-end 224 to rear haulage guiding pipe elements 212 and realize.

Fig. 8 B shows to prelocalization endoscopic tools 210, and wherein sacculus 216 is placed in the sizable distance before the distal end of endoscope 201.Realize to prelocalization preferably by the portions of proximal 223 of the near-end 224 driven forward guiding pipe elements 212 relative to outer tube member 208.

Be appreciated that and the desired distance place of endoscopic tools 210 controlled location before the distal end of endoscope 201 can be realized relative to the suitable controlled location of the near-end 224 of outer tube member 208 by the portions of proximal 223 of guiding pipe elements 212.

Be appreciated that in the scope of before the distal end that the sacculus 216 being applicable to have the generally tubular human body biopsy of variable cross-section diameter according to the preferred embodiment of the present invention controllably can be positioned at endoscope 201 0-45 centimetre.

As being shown in Fig. 8 A-8D, sacculus 216 is fixed in guiding pipe elements 212 by anterior sacculus sleeve part 244 and rear balloon sleeve part 246.As being shown in Fig. 8 C, the cross-sectional diameter of the sacculus 216 and sleeve part, rear portion 246 that are in contraction state is less than the cross sectional inner diameter of outer tube member 208 and tubular conduit 209, allows sacculus 216 through tubular conduit 209 and through outer tube member 208 thus.Be appreciated that the distal part of endoscopic tools 210, comprise sacculus 216 and end section 219, can completely or partially be positioned in tubular conduit 209 and outer tube member 208.Can understand further, if necessary, endoscopic tools 210 can partly or completely be pulled out by outer tube member 208 and be withdrawn from.Can understand further, if necessary, endoscopic tools 210 can through or again through outer tube member 208, such as sacculus 216 is located or is repositioned at endoscope 201 distal end before.

As being shown in Fig. 8 D, accessory 250 can pass outer tube member 208, for the distal end being positioned at endoscope 201 in generally tubular human body before position carry out medical science interaction.

Term " medical science interaction (medical interaction) " comprises, for example, and inspection, process, diagnosis, sampling, removal, labelling and any medical behavior that other is suitable for.

Accessory 250 can comprise any traditional accessory, such as living tissue pincers, polypus cutter, entry needle or ultrasonic unit.Be appreciated that accessory 250 can replace or insert in endoscopic tools 210 side by side.Be further appreciated that when Endoscope-assisted assembly 202 comprises more than one outer tube member 208, accessory 250 can through additional outer tube member (not shown).

Referring now to Fig. 9-12C, be respectively in figure according to the rough schematic view of the endoscopic system of the preferred embodiment of the present invention structure and operation and the reduced graph of accessory part shown according to the preferred embodiment of the present invention structure and operation and sectional view.

As being shown in Fig. 9-12C, have employed conventional endoscope system 300, such as control station, comprise CV-100 video system center, CLV-U20 light source, SONY PVM-2030 video-frequency monitor, and OFP flushing pump, all these can purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).System preferably includes conventional endoscope 301, it forms a part for conventional endoscope system 300, such as CIF-100 video intestinal mirror or CF-Q 160AL video colonoscope, they can business purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).

According to the preferred embodiment of the present invention, Endoscope-assisted assembly 302 comprises peripheral sacculus 303, and it can be installed in endoscope 301 by means of tubular sleeve 304, as shown in the figure, described tubular sleeve is fixed in the distal part of endoscope 301, and is associated with peripheral sacculus 303.

Be appreciated that tubular sleeve 304 can be made up of flexible and ductile material, the siloxanes of such as flexible and ductility, latex or rubber, make its bending in compliance with endoscope 301 thus.Be further appreciated that the non-tensioning internal diameter of tubular sleeve 304 can be less than the diameter of endoscope 301 slightly, allow its tractive and slip in endoscope 301 when being pulled thus, guaranteeing to fixedly positioning in the desired location in the distal end of endoscope 301 simultaneously.

Such as, or tubular sleeve 304 can be made up of low ductile material, polyurethanes or nylon, and internal diameter is greater than the internal diameter of endoscope 301 slightly, allow its tractive and slip in endoscope 301 thus.Preferably, tubular sleeve 304 has been formed relative thin-walled, to allow its bending in compliance with endoscope 301.Be appreciated that once be positioned in desired location, tubular sleeve 304 can be fastened in endoscope 301 by any suitable traditional measures such as medical adhesive tape.

As being shown in Fig. 9-12C, peripheral sacculus 303 is overlapping tubular sleeve 304 at least in part, and fixed thereon by any suitable traditional measures such as binding agent in both sides of the edge, to limit sealed volume between which.Preferably, the inflation of peripheral sacculus 303 is provided by the pipe fitting 306 of UNICOM inner with it with shrinking.By any suitable traditional measures such as medical adhesive tape, pipe fitting 306 can be attached in endoscope 301 along its length on multiple positions.Or pipe fitting 306 can be pulled down by endoscope 301.

Be appreciated that according to the preferred embodiment of the present invention, peripheral sacculus 303 is in fact ductility, and can be inflated to diameter and be approximately it not by the 3-10 of diameter during inflation doubly.According to the preferred embodiment of the present invention, the diameter being applicable to the peripheral sacculus 303 of small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.

In certain embodiments, the diameter being applicable to the peripheral sacculus of small intestine endoscope art when complete inflation is four centimetres.Preferably, the peripheral sacculus 303 of inflation can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another particular implementation, the diameter being applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In further embodiment, the diameter being also applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation is six centimetres.Preferably, the peripheral sacculus 303 of inflation can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, according to the preferred embodiment of the present invention, the swell diameter scope being applicable to the peripheral sacculus 303 of the generally tubular human body biopsy with variable cross-section diameter is greater than the maximum cross section diameter of generally tubular human body, make the peripheral sacculus 303 expanded engage with the inner surface of generally tubular human body thus, and grappling endoscope 301 is in this.Preferably, peripheral sacculus 303 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that peripheral sacculus 303 can be made up of the known ductile material be suitable for such as latex, flexible siloxanes or high flexibility nylon.Or peripheral sacculus 303 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of peripheral sacculus 303 is enough to any part guaranteeing to be anchored to generally tubular human body securely.

In a preferred embodiment of the invention, Endoscope-assisted assembly 302 can comprise at least one outer tube member 308.By any suitable traditional measures such as medical adhesive tape, outer tube member 308 can be attached in endoscope 301 along its length on multiple positions.Or outer tube member 308 can be pulled down by endoscope 301.

Be appreciated that outer tube member 308 can be flexible and high flexible, to allow its bending in compliance with endoscope 301.Be further appreciated that outer tube member 308 can be made up of low friction ratio material, such as TEFLON .

In a preferred embodiment of the invention, outer tube member 308 can pass tubular conduit 309, and described tubular conduit extends longitudinally in tubular sleeve 304.Or tubular conduit can be positioned within sleeve but outside endoscope 301.Outer tube member 308 completely or partially can pass tubular conduit 309, can be fixed on tubular sleeve 304 by any traditional measures, such as, by frictional force or by using suitable binding agent.Or outer tube member 308 can slide relative to tubular conduit 309.

Endoscopic tools 310 according to the preferred embodiment of the present invention structure and operation extends past outer tube member 308.Endoscopic tools 310 preferably includes guiding pipe elements 312, and described guiding pipe elements at least comprises the first tube chamber 314, for passing through inflation opening 318 inflation and shrinking sacculus 316.Preferably, the cross-sectional area of guiding pipe elements 312 is fully less than the cross-sectional area of outer tube member 308, to allow guiding pipe elements 312 roughly freely by outer tube member 308, particularly when outer tube member 308 is in bending or case of bending, and allow through guiding pipe elements for being applied to the fluid of inflation or other purposes and exhaust fluid.

Be appreciated that guiding pipe elements 312 can be flexible and high flexible, to allow it conform to the bending of endoscope 301 and conform to intestinal curve.Be further appreciated that guiding pipe elements 312 can be made up of low friction ratio material, such as TEFLON .

Preferably, the distal end that guiding pipe elements 312 is positioned at before sacculus 316 at it is sealed by the binding agent be such as applicable to by mechanical seal or use in any suitable manner, so that through guiding pipe elements 312 inflation and contraction sacculus 316.

Preferably, endoscopic tools 310 can comprise the end section 319 being positioned at sacculus 316 distally.End section 319 can be made up of high flexibility pipe fitting, such as TYGON pipe fitting, diameter is 1.5 millimeters.By the binding agent that any traditional measures is such as suitable for, end section 319 can be connected to the distal end of guiding pipe elements 312.In a preferred embodiment of the invention, the length of end section 319 is 20-30 millimeter.

Be appreciated that the high flexible of end section 319 can prevent endoscopic tools 310 to adhere to before endoscope 301 when it is advanced past generally tubular human body on barrier and bending.

Be appreciated that according to the preferred embodiment of the present invention, the flexibility of endoscopic tools 310 and guiding pipe elements 312 is in fact higher than endoscope 301.

Be further appreciated that according to the preferred embodiment of the present invention, the flexibility of pipe fitting 306 is in fact higher than endoscope 301.

Be appreciated that according to the flexibility of the outer tube member 308 of the another preferred implementation of the present invention in fact higher than endoscope 301.

Be appreciated that according to the preferred embodiment of the present invention, sacculus 316 is in fact ductility, and can be inflated to diameter and be approximately it not by the 5-20 of diameter during inflation doubly.In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation is four centimetres.Preferably, balloon inflation 316 can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another preferred implementation of the present invention, the balloon diameter being applicable to large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In another particular implementation, the balloon diameter being applicable to large intestine endoscope operation when complete inflation is six centimetres.Preferably, balloon inflation 316 can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, the range of expansion being specially adapted to the diameter of the sacculus 316 of the preferred implementation of the generally tubular human body biopsy with variable cross-section diameter according to the present invention is greater than the maximum cross section diameter of generally tubular human body, make the sacculus 316 expanded engage with the inner surface of generally tubular human body thus, and grappling endoscopic tools 310 is in this.Preferably, sacculus 316 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that sacculus 316 can be made up of known ductile material such as latex, flexible siloxanes or high flexibility nylon.Or sacculus 316 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of sacculus 316 is enough to any position of guaranteeing to be anchored to securely in generally tubular human body.

As being shown in Fig. 9, endoscopic tools 310 preferably includes balloon inflation/contraction control inerface 322, its portions of proximal 323 in guiding pipe elements 312 and guiding pipe elements 312 UNICOM, described portions of proximal extends outside the near-end 324 of outer tube member 308, and the inflation of described control inerface manipulation sacculus 316 and contraction.In addition, be preferably provided with peripheral balloon inflation/contraction control inerface 325, itself and pipe fitting 306 UNICOM, and manipulate inflation and the contraction of peripheral sacculus 303.

Preferably, such as, by band 332 or by other suitable traditional measures any, clip or medical adhesive tape, the near-end 324 of outer tube member 308 is fixed in the portions of proximal of endoscope 301, is adjacent to operator's controller 329 of endoscope 301.

Preferably, operator by relative to outer tube member 308 the controlled traction of near-end 324 or promote the portions of proximal 323 of guiding pipe elements 312, by sacculus 316 in the desired location of generally tubular human body inner position before the distal end of endoscope 301.

Figure 12 A shows the location backward of endoscopic tools 310, and wherein sacculus 316 is placed in before the next-door neighbour of the distal end of endoscope 301.Locate backward preferably by relative to outer tube member 308 portions of proximal 323 from near-end 324 to rear haulage guiding pipe elements 312 and realize.

Figure 12 B show endoscopic tools 310 to prelocalization, wherein sacculus 316 is placed in the sizable distance before the distal end of endoscope 301.Realize to prelocalization preferably by the portions of proximal 323 of the near-end 324 driven forward guiding pipe elements 312 relative to outer tube member 308.

Be appreciated that by by the near-end 324 aptly controlled location of the portions of proximal 323 of guiding pipe elements 312 relative to outer tube member 308, can realize the desired distance of endoscopic tools 310 controlled location before the distal end of endoscope 301.

Be appreciated that according to the preferred embodiment of the present invention, before the distal end that the sacculus 316 being applicable to the generally tubular human body biopsy with variable cross-section diameter controllably can be positioned at endoscope 301 in the scope of 0-45 centimetre.

As being shown in Figure 12 A-12C, sacculus 316 is fixed in guiding pipe elements 312 by anterior sacculus sleeve part 344 and rear balloon sleeve part 346.As being shown in Figure 12 C, the cross-sectional diameter of sleeve part, rear portion 346 is greater than the cross sectional inner diameter of outer tube member 308, prevents sacculus 316 through outer tube member 308 thus.As being shown in Figure 12 C further, cross-sectional diameter when sacculus 316 is in contraction state and the cross-sectional diameter of sleeve part, rear portion 346 are less than the cross sectional inner diameter of tubular conduit 309, allow sacculus 316 to pass tubular conduit 309 thus.Be appreciated that the distal part of endoscopic tools 310, comprise sacculus 316 and end section 319, can completely or partially be positioned in interior tubular conduit 309.

Be appreciated that sleeve part, rear portion 346 can be used as block, it prevents after sleeve part, rear portion 346 touches outer tube member 308 in tubular sleeve 309 inner traction further guiding pipe elements 312.

Referring now to Figure 13-16B, respectively illustrate in figure according to the rough schematic view of the endoscopic system of the preferred embodiment of the present invention structure and operation with according to the reduced graph of accessory part of the preferred embodiment of the present invention structure and operation and sectional view.

As being shown in Figure 13-16B, have employed conventional endoscope system 400, such as control station, comprise CV-100 video system center, CLV-U20 light source, SONY PVM-2030 video-frequency monitor, and OFP flushing pump, all these can purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).System preferably includes conventional endoscope 401, it forms a part for conventional endoscope system 400, such as CIF-100 video intestinal mirror or CF-Q160AL video colonoscope, they can business purchased from Olympus u s company (Olympus America Inc., 2 Corporate Center Drive, Melville, NY 11747, USA).

According to the preferred embodiment of the present invention, Endoscope-assisted assembly 402 comprises peripheral sacculus 403, and it can be installed in endoscope 401 by means of tubular sleeve 404, as shown in the figure, described tubular sleeve is fixed in the distal part of endoscope 401, and is associated with peripheral sacculus 403.Be appreciated that tubular sleeve 404 can be made up of flexible and ductile material, the siloxanes of such as flexible and ductility, latex or rubber, make its bending in compliance with endoscope 401 thus.Be further appreciated that the non-tensioning internal diameter of tubular sleeve 404 can be less than the diameter of endoscope 401 slightly, allow its tractive and slip in endoscope 401 when being pulled thus, guaranteeing to fixedly positioning in the desired location in the distal end of endoscope 401 simultaneously.

Such as, or tubular sleeve 404 can be made up of low ductile material, polyurethanes or nylon, and internal diameter is greater than the internal diameter of endoscope 401 slightly, allow its tractive and slip in endoscope 401 thus.Preferably, tubular sleeve 404 has been formed relative thin-walled, to allow its bending in compliance with endoscope 401.Be appreciated that once be positioned in desired location, tubular sleeve 404 can be fastened in endoscope 401 by any suitable traditional measures such as medical adhesive tape.

As being shown in Figure 13-16B, peripheral sacculus 403 is overlapping tubular sleeve 404 at least in part, and fixed thereon by any suitable traditional measures such as binding agent in both sides of the edge, to limit sealed volume between which.Preferably, the inflation of peripheral sacculus 403 is provided by the pipe fitting 406 of UNICOM inner with it with shrinking.By any suitable traditional measures such as medical adhesive tape, pipe fitting 406 can be attached in endoscope 401 along its length on multiple positions.Or pipe fitting 406 can be pulled down by endoscope 401.

Be appreciated that according to the preferred embodiment of the present invention, peripheral sacculus 403 is in fact ductility, and can be inflated to diameter and be approximately it not by the 3-10 of diameter during inflation doubly.According to the preferred embodiment of the present invention, the diameter being applicable to the peripheral sacculus 403 of small intestine endoscope art when complete inflation in the scope of 3-4 centimetre.

In certain embodiments, the diameter being applicable to the peripheral sacculus of small intestine endoscope art when complete inflation is four centimetres.Preferably, the peripheral sacculus 403 of inflation can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another particular implementation, the diameter being applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In further embodiment, the diameter being also applicable to the peripheral sacculus of large intestine endoscope operation when complete inflation is six centimetres.Preferably, the peripheral sacculus 403 of inflation can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, according to the preferred embodiment of the present invention, the swell diameter scope being applicable to the peripheral sacculus 403 of the generally tubular human body biopsy with variable cross-section diameter is greater than the maximum cross section diameter of generally tubular human body, make the peripheral sacculus 403 expanded engage with the inner surface of generally tubular human body thus, and grappling endoscope 401 is in this.Preferably, peripheral sacculus 403 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that peripheral sacculus 403 can be made up of the known ductile material be suitable for such as latex, flexible siloxanes or high flexibility nylon.Or peripheral sacculus 403 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of peripheral sacculus 403 is enough to any part guaranteeing to be anchored to generally tubular human body securely.

In a preferred embodiment of the invention, Endoscope-assisted assembly 402 can comprise at least one outer tube member 408.By any suitable traditional measures such as medical adhesive tape, outer tube member 408 can be attached in endoscope 401 along its length on multiple positions.Or outer tube member 408 can be pulled down by endoscope 401.

Be appreciated that outer tube member 408 can be flexible and high flexible, conform to the bending of endoscope 401 to allow it.Be further appreciated that outer tube member 408 can be made up of low friction ratio material, such as TEFLON .

In a preferred embodiment of the invention, outer tube member 408 can pass tubular conduit 409, and described tubular conduit extends longitudinally in tubular sleeve 404.Or tubular conduit can be positioned within sleeve but outside endoscope 401.Outer tube member 408 completely or partially can pass tubular conduit 409, and can be fixed on tubular sleeve 404 by any traditional measures, such as, by frictional force or by using suitable binding agent.Or outer tube member 408 can slide relative to tubular conduit 409.

Endoscopic tools 410 according to the preferred embodiment of the present invention structure and operation extends past outer tube member 408.Endoscopic tools 410 preferably includes guiding pipe elements 412, and described guiding pipe elements at least comprises the first tube chamber 414, for passing through inflation opening 418 inflation and shrinking sacculus 416.Preferably, the cross-sectional area of guiding pipe elements 412 is fully less than the cross-sectional area of outer tube member 408, to allow guiding pipe elements 412 roughly freely by outer tube member 408, particularly when outer tube member 408 is in bending or case of bending, and allow through guiding pipe elements for being applied to the fluid of inflation or other purposes and exhaust fluid.

Preferably, multiple short hollow cylinders 420 can longitudinally be arranged in tubular conduit 409, as being shown in Figure 16 A and 16B.Adjacent hollow cylinder 420 can be separated by spacer block 421.

Be appreciated that hollow circular cylinder 420 can be relative flexibility and flexible, to accord with the bending of endoscope 401 and tubular sleeve 404.Or hollow circular cylinder 420 can be relative stiffness.Be appreciated that hollow circular cylinder 420 can be made up of low friction ratio material, such as TEFLON .

Preferably, hollow circular cylinder 420 guides guiding pipe elements 412 in tubular conduit 409, and allows guiding pipe elements 412 smoothly frictionally to pass through with low.

Be appreciated that hollow circular cylinder 420 supports the inwall of tubular conduit 409 and prevents the inwall of tubular conduit 409 from subsiding towards guiding pipe elements 412, particularly under the case of bending of endoscope 401 and tubular sleeve 404.

According to the preferred embodiment of the present invention, the length of hollow pipe fitting 420 can in the scope of 5-25 millimeter, and the length of spacer block 421 can in the scope of 2-10 millimeter.

Be appreciated that guiding pipe elements 412 can be flexible and high flexible, to allow it conform to the bending of endoscope 401 and conform to intestinal curve.Be further appreciated that guiding pipe elements 412 can be made up of low friction ratio material, such as TEFLON .

Preferably, guiding pipe elements 412 can by any suitable mode such as by mechanical seal or use be applicable to binding agent and sealed in its distal end be positioned at before sacculus 416 so that through guiding pipe elements 412 inflation and shrink sacculus 416.

Preferably, endoscopic tools 410 comprises the end section 419 being positioned at sacculus 416 distally.End section 419 can be made up of high flexibility pipe fitting, such as TYGON pipe fitting, diameter is 1.5 millimeters.The binding agent that end section 419 such as can be suitable for by any traditional measures is connected to the distal end of guiding pipe elements 412.In a preferred embodiment of the invention, the length of end section 419 is 20-30 millimeter.

Be appreciated that the high flexible of end section 419 can prevent endoscopic tools 410 to adhere to before endoscope 401 when it is advanced past generally tubular human body on barrier and bending.

Be appreciated that according to the preferred embodiment of the present invention, the flexibility of endoscopic tools 410 and guiding pipe elements 412 is in fact higher than endoscope 401.

Be further appreciated that according to the preferred embodiment of the present invention, the flexibility of pipe fitting 406 is in fact higher than endoscope 401.

Be appreciated that according to another preferred implementation of the present invention, the flexibility of outer tube member 408 is in fact higher than endoscope 401.

Be appreciated that according to the preferred embodiment of the present invention, sacculus 416 is in fact ductility, and can be inflated to diameter and be approximately it not by the 5-20 of diameter during inflation doubly.In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation in the scope of 3-4 centimetre; In certain embodiments, the balloon diameter being applicable to small intestine endoscope art when complete inflation is four centimetres.Preferably, balloon inflation 416 can utilize relatively low pressure to realize to the diameter being less than four centimetres, such as, in the scope of 30-70 millibar.

In another preferred implementation of the present invention, the balloon diameter being applicable to large intestine endoscope operation when complete inflation in the scope of 4-6 centimetre.In another particular implementation, the balloon diameter being applicable to large intestine endoscope operation when complete inflation is six centimetres.Preferably, balloon inflation 416 can utilize relatively low pressure to realize to the diameter being less than six centimetres, such as, in the scope of 30-70 millibar.

Be appreciated that, the range of expansion being specially adapted to the diameter of the sacculus 416 of the preferred implementation of the generally tubular human body biopsy with variable cross-section diameter according to the present invention is greater than the maximum cross section diameter of generally tubular human body, make the sacculus 416 expanded engage with the inner surface of generally tubular human body thus, and grappling endoscopic tools 410 is in this.Preferably, sacculus 416 is highly conforming properties sacculus of flexible relative, can be operated thus accord with the shape of the inner surface of generally tubular human body when it engages at least in part.

Be appreciated that sacculus 416 can be made up of known ductile material such as latex, flexible siloxanes or high flexibility nylon.Or sacculus 416 can be made up of polyurethanes, its ductility and compliance are lower than latex, flexible siloxanes or high flexibility nylon.Preferably, the diameter of sacculus 416 is enough to any position of guaranteeing to be anchored to securely in generally tubular human body.

As being shown in Figure 13, endoscopic tools 410 preferably includes balloon inflation/contraction control inerface 422, its portions of proximal 423 in guiding pipe elements 412 and guiding pipe elements 412 UNICOM, described portions of proximal extends outside the near-end 424 of outer tube member 408, and the inflation of described control inerface manipulation sacculus 416 and contraction.In addition, be preferably provided with peripheral balloon inflation/contraction control inerface 425, itself and pipe fitting 406 UNICOM, and manipulate inflation and the contraction of peripheral sacculus 403.

Preferably, such as, by band 432 or by other suitable traditional measures any, clip or medical adhesive tape, the near-end 424 of outer tube member 408 is fixed in the portions of proximal of endoscope 401, is adjacent to operator's controller 429 of endoscope 401.

Preferably, operator, by relative to the controlled traction of near-end 424 of outer tube member 408 or the portions of proximal 423 of promotion guiding pipe elements 412, by sacculus 416 in the desired location of generally tubular human body inner position before the distal end of endoscope 401.

Figure 16 A shows the location backward of endoscopic tools 410, and wherein sacculus 416 is placed in before the next-door neighbour of the distal end of endoscope 401.Locate backward preferably by relative to outer tube member 408 portions of proximal 423 from near-end 424 to rear haulage guiding pipe elements 412 and realize.

Figure 16 B show endoscopic tools 410 to prelocalization, wherein sacculus 416 is placed in the sizable distance before the distal end of endoscope 401.Realize to prelocalization preferably by the portions of proximal 423 of the near-end 424 driven forward guiding pipe elements 412 relative to outer tube member 408.

To be appreciated that by the portions of proximal 423 of guiding pipe elements 412 relative to near-end 424 controlled location aptly of outer tube member 408, can to realize the desired distance place of endoscopic tools 410 controlled location before the distal end of endoscope 401.

Be appreciated that according to the preferred embodiment of the present invention, before the distal end that the sacculus 416 being applicable to the generally tubular human body biopsy with variable cross-section diameter controllably can be positioned at endoscope 401 in the scope of 0-45 centimetre.

As being shown in Figure 16 A and 16B, sacculus 416 is fixed in guiding pipe elements 412 by anterior sacculus sleeve part 444 and rear balloon sleeve part 446.As being shown in Figure 16 A, the cross-sectional diameter of sleeve part, rear portion 446 is greater than the cross sectional inner diameter of outer tube member 408 and is greater than the cross section of inner diameter tubular passage 409, prevents sacculus 416 through outer tube member 408 and through tubular conduit 409 thus.

Be appreciated that sleeve part, rear portion 446 can be used as block, it touches tubular sleeve 404 or prevents from after touching outer tube member 408 drawing guiding pipe elements 412 further in sleeve part, rear portion 446.

According to the preferred implementation being applicable to the biopsy of generally tubular human body of the present invention, additional accessory 450 can pass the instrument channel 460 of endoscope 401, so that the position before the distal end of endoscope 401 and generally tubular human body medical science interact.Accessory 450 can adopt any traditional accessory, such as living tissue pincers, polypus cutter, entry needle or ultrasonic unit.

Be appreciated that accessory 450 can replace or be additional to endoscopic tools 410 and provide.Accessory 450 can operate in generally tubular human body, its operation can with the operation of Endoscope-assisted assembly 402 and endoscopic tools 410 simultaneously or hocket.

Referring now to Figure 17 A, 17B, 17C, 17D, 17E, 17F, 17G, 17H, 17I and 17J, there is shown the Endoscope-assisted assembly 402 in Figure 13-16B and the reduced graph under the various operative orientation of endoscopic tools 410 in intestinal.In the embodiment shown, the expectation orientation of endoscopic tools 410 front end can be obtained through the convenient axial displacement of the outer tube member 408 of Endoscope-assisted assembly 402 by instrument.

As being shown in Figure 17 A, endoscopic tools 410 is adjacent to the distal end location of endoscope 401, and is in sacculus 416 projection short distance before the distal end of endoscope 401 of contraction state.Can see, peripheral sacculus 403 is in contraction state.

Figure 17 B illustrates that peripheral sacculus 403 is in inflated condition, engages, thus this is fixed in endoscope 401 with the inwall of intestinal.

Figure 17 C illustrates that by a conventional manner relative to endoscope's driven forward instrument, endoscopic tools 410 is in progress forward through intestinal.

Figure 17 D illustrates balloon inflation 416.According to the preferred embodiment of the present invention, this inflation can be fixed in intestinal in the front end of the position of sacculus 416 by endoscopic tools 410.

Figure 17 E illustrates by traction guiding pipe elements 412 and the guiding pipe elements 412 of tensioning endoscopic tools 410.

Figure 17 F illustrates the contraction of peripheral sacculus 403.

Figure 17 G illustrates endoscope 401 by along guiding pipe elements 412 driven forward, is wherein used as the guiding pipe elements 412 of seal wire in a conventional manner.As promoting substituting or walking abreast with promotion endoscope 401 of endoscope 401, can when sacculus 416 is in inflated condition by traction guiding pipe elements 412 tractive endoscopic tools 410, be fixed on thus on intestinal.

Figure 17 H illustrates that peripheral sacculus 403 is by the inwall of inflation intestinal and joint, is fixed on this by endoscope 401 thus.

Then, as being shown in Figure 17 I, endoscope 401 and endoscopic tools 410 can on the inwall being fixed on intestinal be pulled together.A part for intestinal can focus in a part for endoscope 401 by this drawing-in motion, as shown in the figure.

Then, as being shown in Figure 17 J, sacculus 416 can shrink.

According to the requirement of some run into geometrical condition, by repeating some or all steps described above with reference to Figure 17 B-17J, endoscope can be realized be in progress forward further in intestinal, the distal end preferably proceeding to endoscope 401 is placed in the position in the dead astern of sacculus 416, is similar to orientation shown in Figure 17 B.

Similarly, according to the requirement of some run into geometrical condition, by repeating some or all steps described above with reference to Figure 17 B-17J with different order, preferably contrary order, endoscope can be realized and be in progress backward in intestinal.

Be appreciated that and corresponding under some or all the aforementioned operation orientation shown in Figure 17 A-17J, the air for inflation can be supplied to enteral portion between peripheral sacculus 403 and sacculus 416.Specifically, can under the operative orientation corresponding to Figure 17 D, 17E, 17H and 17I, the air being used for inflation can be supplied to the inside of intestinal between peripheral sacculus 403 and sacculus 416, wherein intestinal is assisted in substantially sealing between two balloon inflation.Can under the operative orientation corresponding to Figure 17 B, 17C, 17F, 17G and 17J, the air being used for inflation can be supplied to the inside of intestinal between peripheral sacculus 403 and sacculus 416, wherein intestinal is partly sealed between two sacculus haply.

Be appreciated that the region inflation intestinal between two sacculus can contribute to realizing the previously described operative orientation corresponding to Figure 17 A-17J and contributing to endoscope 401 and endoscopic tools 410 overall conduction in intestinal.

(known by the instrument channel 460 of endoscope 401, and often used in conventional endoscope art), or by outer tube member 408, or by the cavity volume between guiding pipe elements 412 and outer tube member 408, air stream can be provided to the intestinal cavity volume between two sacculus.Or Endoscope-assisted assembly 402 can comprise more than one outer tube member 408, in this case, air stream can be provided to intestinal cavity volume between two sacculus by additional outer tube member (not shown).

Be appreciated that, comprising along in generally tubular human body, any equipment of two inflatable sacculus of conducting toward each other in intestinal specifically, between two sacculus, inflation generally tubular human body, specifically intestinal, can contribute to the conduction of sacculus.

Be appreciated that other fluid any can be supplied to intestinal between two sacculus.For example, sacculus by inflation and engage intestinal inwall state under, as seen Figure 17 D, 17E, 17H and 17I, liquid can be supplied between two sacculus, is limited to by liquid thus in the intestinal cavity volume between two sacculus.This liquid can be medicament or other treat liquid, rinsing solution, marking agent (marking agent), ultrasonic medium, or the liquid of other proper types.

Be appreciated that if necessary, vacuum can be applied to intestinal between two sacculus, to replace fluid, such as in order to aspirate the fluid injected in advance, to contribute to the conduction of endoscope 401 or endoscopic tools 410, or for clearing up body inner fluid in endoscope operation program.

Referring now to Figure 18 A and 18B, there is shown embodiment in Figure 13-16B reduced graph under the operator scheme being applicable to biopsy, diagnosis, sampling or process generally tubular human body.As being shown in Figure 18 A, peripheral sacculus 403 is in inflated condition, and engages the inwall of generally tubular human body, thus this is fixed in endoscope 401.Similarly, sacculus 416 is in inflated condition, and engages the inwall of generally tubular human body, thus endoscopic tools 410 is fixed on this.

Figure 18 A further illustrates the target position 470 on the inwall of generally tubular human body, and it is between peripheral sacculus 403 and sacculus 416.As being shown in Figure 18 B, under state on the inwall being still fixed on generally tubular human body, endoscopic tools 410 can be pulled by traction guiding pipe elements 412, is repositioned between peripheral sacculus 403 and sacculus 416 by the distal end portion of generally tubular human body towards endoscope 401 thus.The carrying out of This move makes accessory 450 close to target position 470 to contribute to, and make accessory 450 and target position 470 operational medicine interact thus, this point is understandable.

It will be understood by those skilled in the art that the present invention be not limited to before special display and the embodiment that describes.On the contrary, the combination not belonging to prior art of aforementioned various feature that can make after comprising the description of those skilled in the art before having read of scope of the present invention and point combination and their amendment.

Claims (15)

1. an endoscopic tools, for using together with the endoscope with distal end, described endoscopic tools comprises:

Tube portion, its flexibility is in fact higher than endoscope;

End section; And

The sacculus of alternative inflation;

Wherein, described end section has high flexible, and its flexibility is in fact higher than described tube portion;

By this, described endoscopic tools can operate and be guided in tubular body portion by the sacculus of the described alternative inflation of endoscopic tools, turn the bending and position that arrives before the distal end being positioned at endoscope of degree through large in tubular body portion, thus described sacculus is positioned at the distal end of described endoscope beyond the invisible.

2. endoscopic tools according to claim 1, wherein, described endoscopic tools is configured to the tube chamber running through outer tube member.

3. the endoscopic tools any one of claim 1 and 2, wherein, described sacculus is arranged on described tube portion.

4. the endoscopic tools any one of claim 1 and 2, wherein, the inside of described sacculus and the inside UNICOM of described tube portion, so that can by sacculus described in described tube portion inflation.

5. the endoscopic tools any one of claim 1 and 2, wherein, described sacculus is anchoring balloon.

6. the endoscopic tools any one of claim 1 and 2, wherein, the diameter of described end section is 1.5 millimeters.

7. the endoscopic tools any one of claim 1 and 2, wherein, the length of described end section is in the scope of 20-30mm.

8. the endoscopic tools any one of claim 1 and 2, wherein, described end section is made up of high flexibility pipe fitting.

9. the device used together with endoscope, comprising:

Outer tube member, itself and described endoscope extend side by side and limit at least one tube chamber; And

Endoscopic tools according to any one of claim 1-8, it is configured at least one tube chamber described running through described outer tube member, and described endoscopic tools comprises the sacculus of alternative inflation;

Wherein, described sacculus is anchoring balloon.

10. device according to claim 9, wherein, described endoscopic tools can at described outer tube member anterior curvature.

11. devices any one of claim 9 and 10, wherein, described endoscopic tools can inflation before described endoscope.

12. devices any one of claim 9 and 10, wherein, the flexibility of described endoscopic tools is in fact higher than described endoscope.

13. devices any one of claim 9 and 10, also comprise the endoscopy functionality coordinated with described endoscope.

14. devices any one of claim 9 and 10, also comprise balloon inflation/contraction controller.

15. devices any one of claim 9 and 10, wherein, described outer tube member is configured to inserted by it and remove described endoscopic tools.