Instructions for creating an endoluminal anatomical structure

Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority from U.S. Provisional Patent Application No. 61 / 287,077, filed December 16, 2009.FIELD OF THE DISCLOSURE

[0002] Exemplary embodiments of the present disclosure relate to arrangements and methods for effecting an endoluminal anatomical structure, and more particularly to arrangements and methods for treatment of gastrointestinal lesions that currently require open abdominal surgery. The exemplary embodiment of at least one of the arrangements can provide an endoluminal colon chamber and a variety of maneuverable operating tools inside that chamber. For example, the exemplary embodiment of such arrangement can function as a miniature operating room inside the colon.BACKGROUND INFORMATION

[0003] Current endoscopic technologies may not facilitate treating colon perforations, large polyps and tumors, and a significant colon bleeding effectively and safely. A gastrointestinal bleeding is a common and potentially life-threatening medical condition, which can complicate any polypectomy (polyp removal), and excision of colonic tumors. A colon perforation can occur when excessive mechanical force or excessive energy is inadvertently applied to a colonic wall. A colon perforation is a life-threatening condition and currently requires major emergency surgery to close the colon perforation and preclude fecal contamination of an abdominal cavity and resulting sepsis.

[0004] Consequently, many patients who develop large polyps, colon perforation, colon bleeding and other significant colon pathology currently have to undergo a major surgery and endure a significant operative trauma and, typically, painful and prolong recovery. Currently there are no effective and safe devices and methods for replacing major abdominal surgery in case of colon perforation or when large wide-based polyps need to be removed.

[0005] Thus, there may be a need to address at least some of the deficiencies described herein above.

[0006] U.S. Provisional Patent Application Serial No. 61 / 247,605 filed on October 1, 2009 and entitled "Detachable Balloon Catheter" describes exemplary embodiments of device and method for treatment of a gastrointestinal perforation and / or a gastrointestinal bleeding. The exemplary device can include a balloon catheter that can control bleeding by pressing on a bleeding area or / and prevents the gastrointestinal contents trespassing outside a gastrointestinal lumen into a body cavity by blocking an opening in the luminal wall or blocking the colon distal to the perforation. Such exemplary device can be inserted using an endoscope, and can allow a partial or complete withdrawal of an endoscope, while leaving the balloon at the target area. More specifically, the exemplary device and method can facilitate ceasing a colonic bleeding and blocking a colon perforation.

[0007] The Minos Megachannel is a large bore flexible reinforced tube, which is designed to be inserted over the standard colonoscope. After the colonoscope is removed, the tube can be used as a passage for insertion of different instruments into the colon.

[0008] Further, conventional endoscopes generally have one to two working channels, which likely do not have independent movements from the main body of the endoscope. As a result, when conventional flexible endoscopic instruments are inserted via such channels into the intestinal lumen, an operator can only manipulate these instruments axially (e.g., forward and backward movements), and possibly somewhat rotationally. In addition, since the conventional instruments can only be advanced from the tip of the endoscope towards the target lesion axially and in front of the endoscopic image, the conventional instruments have only limited functionality. US 5, 776, 097 A discloses a device for treating an intracranial vascular aneurysm located on an intracranial blood vessel, the blood vessel having a lumen and the aneurysm having a lumen, the device comprising: a catheter including a central lumen therethrough, a first inflation conduit having a distal end, and a first inflation balloon in communication with the distal end of the inflation conduit; the catheter further including means for visualizing the blood vessel lumen adjacent the aneurysm lumen, the means for visualizing in combination with the central lumen; and the catheter further including means for delivering a liquid sealing agent to the lumen of the aneurysm, the means for delivering in combination with the central lumen. US 2003 / 074015 A1 discloses an endoscopic retractor instrument assembly comprising: an insertion or deployment tube insertable through a channel of an endoscopic instrument; a balloon or bladder having a pair of expandable or inflatable end members and at least one expandable or inflatable spacer member connecting said end members to one another, said balloon or bladder being disposed in a collapsed configuration inside said tube; and inflation means operatively coupled with said balloon or bladder for inflating said balloon or bladder from said collapsed configuration to an expanded use configuration in which said spacer member pushes said end members apart from one another.

[0009] Accordingly, there may be a need to address at least some of the deficiencies described herein above.SUMMARY OF EXEMPLARY EMBODIMENTS OF THE PRESENT DISCLOSURE

[0010] The invention is defined by the features of the independent claim.

[0011] Exemplary embodiments of the present disclosure can address most if not all of the above-described needs by providing device and method for a treatment of, e.g., a gastrointestinal perforation, bleeding, removal of large polyps, and / or other significant endoluminal pathology, for example, colonic pathology.

[0012] According to one exemplary embodiment of the present disclosure, the device can function as a miniature operating room inside the lumen, for example, colon, and providing an operator with advanced endoluminal functionalities replicating capabilities of a surgical suite. The exemplary device of the present disclosure can provide such miniature endoluminal operating room, chamber or at least partial enclosure, and the ability to utilize a variety of articulating surgical instruments, which can operate within, at or around the chamber.

[0013] According to one exemplary embodiment of the present disclosure, the exemplary arrangement / device can be introduced after a standard diagnostic colonoscopy is performed. An exemplary balloon guide catheter, as described in US Provisional Patent Application Serial No. 61 / 247,605, or a large endoluminal channel such as a Minos Megachannel manufactured by, e.g., Minos Inc., can be used to facilitate the insertion of the exemplary device according to the present disclosure.BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Further objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying figures showing illustrative embodiments of the present disclosure, in which: Figs. 1a and 1b, are schematic cross-sectional illustrations of an exemplary embodiment of an arrangement / device comprising a multi-lumen extrusion tube, and multiple tubes inside one large tube in accordance with the present disclosure; Fig. 2a is a perspective view of an exemplary embodiment of the arrangement / device according to the present disclosure comprising which includes a nitinol strips chamber in an open position; Fig. 2b is a perspective illustration of the arrangement / device of Fig. 2a with the chamber formed by flexible strips in a closed position; Fig. 2c is a side view of the arrangement / device of Fig. 2a with the chamber formed by flexible strips in another position; Fig. 2d is a side view of the arrangement / device of Fig. 2a with an overtube covering the chamber that is in the closed position according to an exemplary embodiment of the present disclosure; Fig. 2e is a side view illustration of the arrangement / device of Fig. 2a with a scope that is provided in one of the working channels and facilitating a field of view therefor according to another exemplary embodiment of the present disclosure; Fig. 3 is a perspective view of another exemplary embodiment of the arrangement / device according to the present disclosure which includes the chamber made from two metal strips; Fig. 4 is a side cross-sectional view of an exemplary embodiment of the arrangement / device according to the present disclosure which includes the chamber made from two asymmetric balloons; Fig. 5 is a perspective view of another exemplary of another exemplary embodiment of the arrangement / device according to the present disclosure which includes the chamber made from one asymmetric balloon together with the balloon guide catheter; Fig. 6 is a perspective view of another exemplary of still another exemplary embodiment of the arrangement / device according to the present disclosure which includes the chamber made from metal wires braid; Fig. 7 is a perspective view of a further exemplary of yet another exemplary embodiment of the arrangement / device according to the present disclosure which includes the nitinol strips chamber with two blocking balloons at both sides; Fig. 8 is a side view of another exemplary of yet a further exemplary embodiment of the arrangement / device according to the present disclosure which includes the chamber with cameras; Fig. 9a is a right side perspective view of another exemplary of a further exemplary embodiment of the arrangement / device according to the present disclosure which includes a particular handle; Fig. 9b is a left side perspective view the exemplary arrangement / device of Fig. 9a; Fig. 10 is a perspective view of yet another exemplary of yet another exemplary embodiment of the arrangement / device according to the present disclosure which includes a vacuum catheter; Fig. 11 is a perspective view of yet another exemplary of another exemplary embodiment of the arrangement / device according to the present disclosure which includes a tool-channel; Fig. 12 are different illustration of a preferred embodiment of still another exemplary of another exemplary embodiment of the arrangement / device according to the present disclosure which includes a tool-channel elevator; and Fig. 13 is a perspective view of yet another of another exemplary embodiment of the arrangement / device according to the present disclosure which includes the tool-channels inside the chamber thereof.

[0015] Throughout the figures, the same reference numerals and characters, unless otherwise stated, are used to denote like features, elements, components or portions of the illustrated embodiments. Moreover, while the subject disclosure will now be described in detail with reference to the figures, it is done so in connection with the illustrative embodiments.DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0016] According to one exemplary embodiment of the present disclosure, a device, an arrangement and a method can be provided for treatment of, e.g., conditions associated with body lumen(s) or / and cavities, for example, gastro-intestinal conditions, including but not limited to a gastrointestinal perforation, bleeding, large polyps or / and tumors, diverticuli, appendix, and others.

[0017] The exemplary embodiments of the arrangement / device according to the present disclosure can provide various functions, which may be the same and / or similar to the surgical functions provided in the surgical operating room, therefore, thus representing a miniature operating room within a lumen (e.g., of a body), such as, e.g., colon and allowing to replace a major surgery, e.g., an open abdominal surgery.

[0018] For example, as shown in Figs. 2a and 2b, the exemplary embodiment of the arrangement / device 1 according to the present disclosure can provide an endoluminal chamber which can also be at least partial enclosure, such as, e.g., an endoluminal colon or an intra-colon chamber / enclosure, and include various maneuverable operating instruments and / or tools 11 within the chamber 10. The exemplary arrangement / device 1 can be inserted after one or more relevant lesions is / are identified, e.g., during standard colonoscopy. A particular balloon guide catheter 4, e.g., such as described in US Provisional Patent Application Serial No. 61 / 247,605 filed on October 1, 2009, or Mega-channel such as Minos Inc. Mega-channel, can be used to facilitate an insertion of the exemplary arrangement / device 1.

[0019] According to certain exemplary embodiments of the present disclosure, the arrangement / device 1 can be a particularly-designed endoscope, such as, e.g., a colonoscope. As shown in Figs. 9a and 9b, according to certain exemplary embodiments, the arrangement / device 1 can include, e.g., an exemplary handle 20 (see Figs. (see Figs. 9a and 9b), an exemplary multi-lumen tube 30 (see Figs. 1a, 1b, 3, 7, 8 and 13), and an exemplary expandable chamber 10 (see Figs. 5, 7, 10 and 13). In addition, the arrangement / device 1 can include standard and particular exemplary instruments / tools 11 (see Figs. 8, 12 and 13) and / or exemplary tool channels (see Fig. 13).

[0020] As indicated herein above, the exemplary arrangement / device 1 can include the multi-lumen tube 30. Such exemplary multi-lumen tube 30 can be made from a single extrusion polymer tube 31 having multiple lumens {see Fig. la}, and / or made in a standard endoscopic equipment configuration using a collection of single or multi-lumen tubes 32 of different sizes that are enclosed by a single, large, flexible tube 33 (see Fig. 1b). External and internal tubes can be simple polymer tubes and / or reinforced tubes or braided tubes, as known in the art. The external tube 33 can have a diameter that is large enough to contain all inner tubes 32 provided for the exemplary arrangement / device 1. The exemplary multi-lumen tube 30 can include at least one lumen, and, e.g., possibly 2 to 4 or more lumens for 2 to 4 or more exemplary instruments / tools 11 and / or tool-channels 40, and possibly additional lumens, for example, for a air insufflation 34, water irrigation 35, vacuum 36, lumen for wiring and / or fibers for cameras and illumination 37, lumen for a balloon guide catheter 4, lumen for chamber expansion control 38, and / or lumen for proximal balloon inflation 39, as shown in the exemplary embodiment of Fig. 1b.

[0021] For example, according to particular exemplary embodiments of the present disclosure, the arrangement / device 1 can contain a distal chamber 10 that can be expanded to different sizes inside the colon, thus likely creating relatively large or sufficient working space near the lesion to be treated. The exemplary chamber 10 can provide a space for manipulations of multiple tools and / or tool-channels in such a way that several tools can approach the lesion from all sides and directions, as shown in, e.g., Figs. 3, 7, 8 and 13. The exemplary multi-lumen tube 30, e.g., having a diameter between 10mm to 40mm, can accommodate at least one tool-channel, which can in turn accommodate, e.g., a non-standard instrument, for example, an endoscopic stapler, both having a sufficient size for a particular purposes thereof.

[0022] According to one exemplary embodiment of the present disclosure, the exemplary chamber 10 can be constructed from at least one, and possibly two or more flexible metal strips, fibers or wires 12, which can be made from a flexible material, such as, e.g., Nitinol, as shown in Figs. 2a-2e and 3. These exemplary strips, fibers or wires can be composed of other materials as well, including but not limited to surgical plastic or other materials. The exemplary strips, fibers or wires 12 can be substantially straightened (or slightly-to-moderately bent as needed during steering the device through the lumen) when the chamber 10 (providing a working space) is in non-deployed position (see Figs. 2a and 2d), and are substantially bent when actuated by a control lever 23 in the handle 20, hence, enlarging the chamber 10 and creating a larger working space inside the colon, as shown in Figs. 2b, 2c, 2e and 3. For example, pushing or pulling the exemplary strips, fibers or strips 12 can be performed with a tube 19 that can slide in the lumen 38 by pulling and / or pushing the tube 19 proximal end lever 23 in the handle 20, as shown in Figs. 2a-2e, 3, 9a and 9b. Further, the guide catheter 4 can be inserted inside the tube 19. The exemplary strips 12 can be covered by a soft polymer cover to avoid possible inner colon tissue damage.

[0023] According to an exemplary embodiment of the present disclosure, as shown in Figs. 2a-2e, the chamber 10 it can be deflected by pulling on the exemplary strips, fibers or wires 12, or the chamber 10 can be opened when the exemplary strips, fibers or wires 12 are pushed forward from the handle 30. In thus manner, the exemplary strips, fibers or wires 12 increase working space with in the chamber 30 to facilitate the anatomical structure to be pulled into the chamber 10 by other instruments / tools 11 being manipulated from the handle 30, as described in further details herein, and shown in, e.g., in Fig. 8.

[0024] Further, as shown in Figs. 2c and 2e, the exemplary strips, fibers or wires 12 can be covered with a protective cover portions 70 so as to reduce damage being caused by the exemplary strips, fibers or wires 12 when they are actuated to expand the chamber 10 (i.e., which causes the exemplary strips, fibers or wires 12 to push on the surrounding tissue). As shown in Fig. 2d, the arrangement / device 1 can also include an overtube 65 which can be pushed forward toward the front of the arrangement / device 1 so as to cover the collapsed chamber 10 (e.g., to facilitate insertion and removal and containing the specimen), and pulled back to prepare for the chamber 10 for its expansion. Fig. 2e shows an illustration of the arrangement / device 1 of Fig. 2a with a scope 60 (including a camera and at least one light illuminating source) that is provided in one of the working channels 40 and facilitating a field of view 54 for positioning and propelling the exemplary arrangement / device 1.

[0025] When the instrument 1 reaches the desired position within the body, the scope 60 can be retracted inside the chamber 10, e.g., via the working channel 40 to facilitate visualization inside and / or near the chamber 10. According to another embodiment of the present disclosure, an articulating scope (which can perform similar functions as that of the scope 60) can be provided through one or more of the working channels 40 into the chamber 10. Such articulating scope can be configured to illuminate and / or provide images of the anatomical structure and tools inside and / or near the chamber 10. The articulating scope can have a distal portion that can rotate in 360 degrees and bend to provide an end part thereof so as to illuminate and visualize any portion of the anatomical structure and the tools inside and / or near the chamber 10 at any angle.

[0026] In another exemplary embodiment of the present disclosure, as shown in Fig. 7, the strips 12 can be proximally connected to a first cap 14, which can be made from a solid material. The first cap 14 can have multiple holes for most or all lumens 32. The strips 12 can also be distally connected to a second cap 15 which can be smaller in diameter than the first cap 14, to facilitate a passage of large specimens, for example, polyps into the area of the chamber 10. The distal second cap 15 can include a hole for insertion of the balloon guide catheter 4. Alternatively or in addition, the exemplary chamber 10 can be made from two asymmetrical balloons 5, 16, as shown in the exemplary embodiment of Fig. 4. For example, the balloons 5, 16 can create space for the chamber 10 and the exemplary instruments / tools 11 when inflated. Alternatively or in addition, the exemplary chamber 10 can be provided using the proximal balloon 16 and the distal balloon 5, being connected to one another via their attachment to the balloon guide catheter 4, as shown in Fig. 5. Further alternatively or in addition, the exemplary chamber 10 can be provided by a braided metal wire net 17 having an opening 18 at desired location, as shown in Fig. 6.

[0027] In another exemplary embodiment of the present disclosure, at least one, and possibly two or more balloons can be used with the chamber 10 that is made from strips 12 made from a bendable material (e.g., metal). The exemplary balloon(s) 5, 16 can assist in blocking and / or isolating the chamber 10 from the rest of the colon, hence, minimizing and / or preventing the inflow and outflow of liquids and solids from and / or to the chamber 10, while the exemplary strips 12 can provide a substantially rigid and stable working space and facilitate treatment of the lesion. For example, as shown in Fig. 7, the first symmetric or asymmetric balloon 16 can be provided in proximal to the chamber 10 or the position of the strips 12. The second balloon 5 can be provided at the position that is distal to the strips 12. Alternatively, the second balloon 5 that can be connected to the guide catheter 4.

[0028] According to still another exemplary embodiment of the present disclosure, the arrangement / device 1 can include at least one camera and an illumination apparatus to provide sufficient light to the area of interest. For example, camera or cameras and illuminating component can be movable or fixed in the arrangement / device 1, for example, to the chamber 10. In one exemplary embodiment shown in Fig. 2e, the scope / front camera 50 can be used to facilitate the insertion of the arrangement / device 1 into the colon. Referring to Fig. 8, e.g., at least one, two or more additional and possibly fixed cameras 51 can be positioned so to facilitate image capture at a location of the lesion. Exemplary field views 54 of the cameras 51 can overlap, and such overlap may facilitate visualization if one or more instruments / tools blocks or adversely affects view of one of the cameras. For example, illumination can be provided by a variety of ways, e.g., by LEDs 52, 53. Exemplary front LEDs 52 can be used for the front camera 50, and in-chamber LEDs 53 can be used for the illumination in or at the chamber 10. Alternatively or in addition, a conventional flexible endoscope, having distal bendable section, can be used instead of or together with the fixed camera(s) 51 and illumination via the LEDs 52, 53.

[0029] As shown in Figs. 9a and 9b, the exemplary arrangement / device 1 according to a further exemplary embodiment of the present disclosure can include a control handle 20 at or about its proximal end. The exemplary handle 20 can have similar shape and configuration with respect to other conventional endoscope's handles, while likely having additional channel ports and actuators than standard endoscope. For example, the ports in the handle 20 can include at least one, and possibly 2-4 or even more ports for the tool-channels 21, balloon guide catheter port 22 and particular lever 23 to control the opening and closing of the chamber 10. Additional ports can include, but not limited to, a luer port 24 for a proximal balloon inflation, and a port 26 of a vacuum catheter 25 or an irrigation catheter. The handle 20 can include switches 27, 28 for air insufflations, water irrigation and vacuum activation, as well as switch (not shown) for switching camera(s) between frontal and inner locations.

[0030] As illustrated in Fig. 10, the exemplary arrangement / device 1 according to a still further exemplary embodiment of the present disclosure can include a vacuum catheter with a bent tip 25, inserted in a vacuum lumen 36 through a vacuum port 26. The vacuum catheter can operate as a standalone (as describe herein), and / or may be inserted into tool channel 40 and deflect. Further, the vacuum catheter can be manipulated to reach all or most areas inside and around the chamber 10, hence, providing an access for elimination of liquids and solids from and around the chamber 10. In another exemplary embodiment of the present disclosure, the chamber 10 can include bendable and steerable section, which can be actuated at the lever 23, which when pulled, the instrument 1 is articulated, and when pushed, the chamber 10 is opened (or increased in size). Thus, movements of the exemplary arrangement / device 1 in the colon can be facilitated. According to a further exemplary embodiment, a locking mechanism can be provided which can , e.g., rotate one or more times (e.g., counterclockwise or counter-clockwise) to lock the lever 23.

[0031] According to still another exemplary embodiment of the present disclosure, the exemplary arrangement / device 1 can include the instruments / tools 11 and / or tool- channels 40, as shown in Fig. 11. When the exemplary instruments / tools 11 are inserted in the tool channels 40, distal ends 41 thereof change the position(s) and / or shapes of the instruments / tools 11, for example, rotated, axially moved, bent at desired angles, whenever the position and shape of the associated tools channels 40 are changed, as shown in Fig. 12. The tool channels 40 can be actuated and manipulated at or about proximal end of the exemplary arrangement / device of the present disclosure. The described maneuverability of the tool-channels 40, for example, their distal ends 41 provide and / or facilitate multidirectional and multiangular approach to the target lesion.

[0032] For example, the tool-channels 40 can include at least one, and preferably two, three or more lumen tubes 42, which can be made of polymer, possibly having high torque-ability, low friction, connected at or about their distal ends to an additional section 41, which can have "elevators" 43. The exemplary polymer tube(s) 42 can be reinforced with other materials to change its / their structural or / and functional properties. The elevator 43 can be a flexible bendable section, made, e.g., from a laser cut nitinol tube 44, and / or actuated, e.g., bent, using one or two metal wires 45. The instruments / tools 11 can be inserted in the first (e.g., relatively large) lumen of the tube 42, and the wire 45 can be inserted in the second (e.g., relatively small) lumen of the tube 42.

[0033] As shown in Fig. 13, the ability of the tool-channel tubes 42 to move, independently or simultaneously, axially (e.g., pushing, pulling directions), rotate and bend using the elevator 43, facilitates the instruments / tools 11 or / and the tool-channels 40 in reaching any point within and around the chamber 10, and can provide possibly an unlimited range of instrumental freedom within the working space. For example, as shown in Fig. 11, the tool channel 40 can include one or more handles 46 connected to the tube 42 at or about a proximal side of the tube 42, and can be used for a manipulation of the elevator 43, and utilize a port 47 for an insertion of the exemplary instrument / tool. 11. The exemplary tool-channel handle 46 can include a slider or knob 48 which can be used to actuate, e.g., pull and release a wire 45, as shown in Fig. 12. Any standard tool(s) can be used with the exemplary tool-channel(s) 40. Alternatively or in addition, articulating tools having maneuverable distal ends, e.g., with at least two degrees of freedom, can be used.

[0034] According to yet a further exemplary embodiment of the present disclosure, a method for implementing the exemplary arrangement / device 1 according to the present disclosure can be provided. Such exemplary method can be utilized as follows: i. Perform a standard colonoscopy and identifying a lesion that may not be treated using standard endoscopy and techniques. ii. Insert a balloon guide catheter, inflating the balloon and removing the standard colonoscope (the balloon catheter and inflated balloon are left in place). The balloon guide catheter can be used as a guide-wire to facilitate the insertion of the exemplary arrangement / device 1. iii. Insert the exemplary arrangement / device lover the balloon guide catheter, until the chamber is in the proximity to the lesion. iv. Deploy and adjust the chamber 10 of the exemplary arrangement / device 1 to preferred dimensions. Readjust the chamber 10 during the procedure as needed. v. Clean an operative area with a provided suction catheter. If desired, inflate a proximal balloon, a distal balloon or both proximal and distal balloons for the treatment area isolation. vi. Insert the tool-channels. vii. Insert the instruments / tools into the tool-channels. Manipulate the tool-channels to optimize and facilitate the instruments / tools approach to the lesion. viii. Perform a procedure, e.g., closing a colonic perforation, removing a large colon polyp or tumor, stopping a bleeding, closing diverticuli, removing an appendix, treating other body luminal lesions.

[0035] The foregoing merely illustrates the principles of the present disclosure. Various modifications and alterations to the described embodiments will be apparent to those skilled in the art in view of the teachings herein, but only those falling within the scope of the claims form part of the invention.

Claims

1. A multi-lumen endoscope receiving tube (30), comprising: a proximal balloon (16) disposed along a distal portion of the multi-lumen endoscope receiving tube (30), a distal balloon (5) positioned distal of the proximal balloon (16), a plurality of elongated members (12) extending between the proximal and distal balloons (16, 5), and a handle (20) for manipulating the plurality of elongated members (12), wherein the proximal and distal balloons (16, 5) are inflatable to form a chamber (10) therebetween, at least a portion of the chamber (10) extending beyond a distal end of the endoscope receiving tube (30), the endoscope receiving tube (30) having a first lumen dimensioned to receive an endoscope and a second lumen dimensioned to receive a first instrument (11), wherein the elongated members (12) are strips, fibers or wires.

2. The endoscope receiving tube (30) of claim 1, wherein one or both of a size or shape of the chamber (10) can be adjusted within a body lumen.

3. The endoscope receiving tube (30) of claim 1 or 2, wherein the elongated members (12) are laterally movable to engage a wall of a body lumen.

4. The endoscope receiving tube (30) of any one of claims 1-3, further comprising a third lumen, a first instrument (11) insertable through the second lumen into the chamber (10), and a second instrument (11) insertable through the third lumen a into the chamber (10).

5. The endoscope receiving tube (30) of claim 4, further comprising a first handle (20) configured to move the first instrument within the second lumen, and a second handle (20) configured to move the second instrument (11) within the third lumen.

6. The endoscope receiving tube (30) of any one of claims 1-5, wherein the receiving tube (30) includes a reduced transverse dimension between the distal and proximal balloons (5, 16).

7. The endoscope receiving tube (30) of any one of claims 4-6, wherein the first and second instruments (11) are movable independently of each other within the chamber (10).

8. The endoscope receiving tube (30) of any one of claims 4-7, wherein distal tips of the first and second instruments (11) are bendable within the chamber (10).

9. The endoscope receiving tube (30) of any one of claims 1-8, wherein the distal and proximal balloons (5, 16) are configured to expand within a colon of a patient to contact a tissue wall of the colon.

10. The endoscope receiving tube (30) of any one of claims 1-9, wherein the proximal balloon (16) is proximal to distal opening of the first and second lumens.

11. The endoscope receiving tube (30) of any one of claims 1-10, wherein the proximal balloon (16) is static and the distal balloon (5) is translatable along the receiving tube (30).

12. The endoscope receiving tube (30) of any one of claims 1-11, wherein the proximal balloon (16) expands symmetrically along the receiving tube (30).

13. The endoscope receiving tube (30) of any one of claims 1-12, wherein the distal balloon (5) expands symmetrically along the receiving tube (30).

14. The endoscope receiving tube (30) of any one of claims 1-13, wherein the multi-lumen endoscope receiving tube (30) has a diameter between 10 mm and 40 mm.

15. The endoscope receiving tube (30) of any one of claims 1-14, wherein the multi-lumen endoscope receiving tube (30) includes 2 to 4 or more lumens for 2 to 4 or more instruments (11), and optionally additional lumens for air insufflation (34), water irrigation (35), vacuum (36), for wiring and / or fibers for cameras and illumination (37), for a balloon guide catheter (4), for chamber expansion control (38) and / or for proximal balloon inflation (39).