A telescopic enteroscope assembly

Abstract

The present invention relates to the field of medical diagnostic technology, and more specifically to a telescopic enteroscope assembly, comprising a cannula and two airbags. The cannula is further provided with an auxiliary airbag, the auxiliary airbag comprising three airbag rings, namely a middle airbag ring and two side airbag rings. A first connecting airway and a second connecting airway are provided on the side wall of the cannula. One end of the first connecting airway is connected to the middle airbag ring, and the other end is disconnected from the connecting airbag after the connecting airbag is squeezed by small intestinal peristalsis. The second connecting airway is a three-way pipe. One of the three ports of the three-way pipe is connected to the connecting airbag after the connecting airbag is squeezed by small intestinal peristalsis, and the other two ports are always connected to the side airbag rings. After the airbag is squeezed by small intestinal peristalsis, the height of the two side airbag rings is greater than that of the middle airbag ring, so that the cross-section of the auxiliary airbag presents a suction cup structure with high sides and a concave center. The present invention strengthens the connection between the cannula and the intestine, reduces cannula displacement, and reduces operational difficulty.

Description

Technical Field

[0001] The present invention relates to the technical field of medical diagnosis, and in particular to a telescopic enteroscope assembly. Background Art

[0002] In the field of medical diagnostic technology, enteroscopy can assist doctors in diagnosing digestive system diseases more comprehensively. For small intestinal endoscopy, because the small intestine is long and curved, a push-type small intestinal endoscopy is usually used, and it is necessary to use an air bag to support the inner wall of the small intestine to achieve fixation. For example, a small intestinal endoscope outer sleeve disclosed in the utility model patent with authorization announcement number CN219578847U includes a sleeve, which is used to be inserted into the body cavity, and the endoscope is inserted into the sleeve; the outer wall of the sleeve is provided with a first air bag and a second air bag in sequence, and the side wall of the sleeve is also provided with a first air supply line, a second air supply line and a water injection line, the first air supply line extends along the outer wall of the sleeve to the first air bag, and is used to inflate and deflate the inside of the first air bag, the second air supply line extends along the outer wall of the sleeve to the second air bag, and is used to inflate and deflate the inside of the second air bag, and the water injection line is used to inject water into the body cavity to lubricate the inner wall of the intestine. When the small intestine endoscope sleeve is in use, the first airbag and the second airbag are alternately inflated and deflated. After being inflated, the first airbag and the second airbag respectively fix the small intestine and pull it back, thereby straightening the intestine and reducing the operation time.

[0003] After the existing small intestine endoscope assembly is inserted into the small intestine, the intermittent and strong peristalsis of the small intestine may cause the small intestine endoscope assembly to shift inside the small intestine. Although the existing technology uses double air bags to achieve fixation, the waves of peristalsis of the small intestine make it impossible for the air bags to fix the small intestine endoscope assembly well, and the problem of difficulty in examination still exists. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention proposes a telescopic enteroscope assembly to solve the technical problem in the prior art that the enteroscope assembly is easily displaced due to small intestinal peristalsis, making examination difficult.

[0005] A telescopic enteroscope assembly of the present invention adopts the following technical solution:

[0006] The intestinal sac is a kind of telescopic enteroscope assembly, comprising a sleeve and a first airbag and a second airbag arranged at intervals on the sleeve, wherein a water injection pipeline, a first air supply pipeline and a second air supply pipeline are provided in the sleeve, the first air supply pipeline is used to inflate and deflate the first airbag, and the second air supply pipeline is used to inflate and deflate the second airbag, and an auxiliary airbag is further provided on the sleeve, wherein the auxiliary airbag is composed of three airbag rings, which are arranged side by side and tightly on the outer wall of the sleeve, forming a structure with a "mountain" shape in the cross section in the initial state, and the three airbag rings are respectively a middle airbag ring located in the middle position and side airbag rings located on both sides of the middle airbag ring, and the side walls of the three airbag rings are not connected to each other; at least one of the first airbag and the second airbag is a connecting airbag that inflates the auxiliary airbag when squeezed by small intestine peristalsis, and the auxiliary airbag is located on one side of the connecting airbag. , a first communicating air path and a second communicating air path are provided on the side wall of the sleeve, one end of the first communicating air path is connected with the middle air bag ring, and the other end is connected with the communicating air bag when the communicating air bag is not squeezed by the peristalsis of the small intestine, and is disconnected from the communicating air bag after the communicating air bag is squeezed by the peristalsis of the small intestine. The second communicating air path is a three-way pipe, and the three-way pipe has three ports that are interconnected. One of the three ports is connected with the communicating air bag after the communicating air bag is squeezed by the peristalsis of the small intestine, and the other two ports are always connected with the two side air bag rings respectively. After the communicating air bag is squeezed by the peristalsis of the small intestine, the internal gas enters the side air bag rings through the second communicating air path, so that the height of the two side air bag rings is greater than that of the middle air bag ring, so that the cross-section of the auxiliary air bag is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine.

[0007] Furthermore, one end of the communicating airbag is fixedly connected to the outer wall of the sleeve, and the other end is movably connected to the outer wall of the sleeve. When the inflated communicating airbag is subjected to the peristaltic squeezing of the small intestine, the end of the communicating airbag movably connected to the outer wall of the sleeve can move along the extension direction of the sleeve.

[0008] The cam is adapted to move the air bag forwardly and downwardly relative to the first air bag, and the cam is adapted to move the air bag forwardly and downwardly relative to the first air bag when the cam is inflated.

[0009] Furthermore, an internal thread is provided on the inner wall of the movable sleeve, and an external thread is provided on the outer wall of the sleeve. The movable sleeve is screwed onto the sleeve through the cooperation of the internal thread and the external thread. An annular air chamber coaxial with the movable sleeve is provided inside the movable sleeve. The airway is composed of the annular air chamber. Blades are provided inside the annular air chamber. When the inflated communicating air bag is squeezed by the peristalsis of the small intestine, the gas inside the communicating air bag drives the movable sleeve to rotate relative to the sleeve through the blades when passing through the annular air chamber. The movable sleeve rotates and moves along the length direction of the sleeve at the same time.

[0010] Furthermore, an arc-shaped support bar is fixed on the end surface of one end of the movable sleeve connected to the communicating airbag. There are multiple support bars, which are evenly spaced along the circumference of the movable sleeve.

[0011] Furthermore, a sealing film sleeve is connected between one end of the movable sleeve away from the support bar and the auxiliary airbag, one end of the sealing film sleeve is fixedly connected to the outside of the auxiliary airbag, and the other end is fixedly connected to the movable sleeve.

[0012] Furthermore, a diaphragm is provided on the outer periphery of the auxiliary airbag. There are multiple diaphragms, which are evenly spaced along the circumference of the auxiliary airbag. Two adjacent diaphragms and the outer periphery of the auxiliary airbag form a groove.

[0013] Furthermore, there are two auxiliary airbags, namely the first auxiliary airbag and the second auxiliary airbag, and there are also two connecting airbags, namely the first connecting airbag and the second connecting airbag. The first airbag is the first connecting airbag used to inflate the first auxiliary airbag, and the second airbag is the second connecting airbag used to inflate the second auxiliary airbag. The first auxiliary airbag is located on one side of the first airbag, and the second auxiliary airbag is located on one side of the second airbag. The two auxiliary airbags have the same structure, and two first connecting air paths and two second connecting air paths are respectively provided on the inner wall of the sleeve.

[0014] Furthermore, the sleeve includes an inner tube and an outer tube that are sleeved together, the inner tube is movably inserted into the outer tube, the first airbag and the first auxiliary airbag are arranged on the inner tube, and the second airbag and the second auxiliary airbag are arranged on the outer tube.

[0015] Furthermore, the first air supply pipeline and the water injection pipeline are respectively arranged in the inner tube, the second air supply pipeline is arranged in the outer tube, a camera is provided at the end of the inner tube, and a connecting line connected to the camera is provided in the inner tube.

[0016] The beneficial effects of the present invention are as follows: a telescopic enteroscope assembly of the present invention, by arranging an auxiliary airbag on one side of at least one of the first airbag and the second airbag, utilizes the peristaltic squeezing of the intestinal circular muscle to push the gas in the first airbag or the second airbag into the auxiliary airbag, and successively connects with the middle airbag ring and the side airbag ring of the auxiliary airbag through the first connecting airway and the second connecting airway, and then makes the height of the two side airbag rings greater than that of the middle airbag ring, so that the cross-section of the auxiliary airbag presents a suction cup structure with high sides and a concave middle, the suction cup structure sucks the inner wall of the small intestine, thereby increasing the connection strength between the intestines, thereby reducing the displacement of the sheath in the intestine and reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a telescopic enteroscope assembly of the present invention;

[0019] Figure 2 Another perspective schematic diagram of an embodiment of a telescopic enteroscope assembly of the present invention (inner tube and outer tube separated);

[0020] Figure 3 This is a schematic diagram of the cooperation between the second airbag and the second auxiliary airbag and the outer tube in one embodiment of a telescopic enteroscope assembly of the present invention;

[0021] Figure 4 This is another schematic diagram of the cooperation between the second airbag and the second auxiliary airbag and the outer tube in one embodiment of a telescopic enteroscope assembly of the present invention (the movable sleeve rotates and drives the second airbag to twist);

[0022] Figure 5for Figure 3 A schematic diagram of a cross section along the length of the outer tube;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of part A in the middle;

[0024] Figure 7 for Figure 6 Schematic diagram of another state (after the movable sleeve moves toward the second auxiliary airbag);

[0025] Figure 8 for Figure 3 Another schematic cross-sectional view along the length of the outer tube;

[0026] Figure 9 for Figure 8 A magnified schematic diagram of the local D in the middle;

[0027] Figure 10 This is a schematic diagram of the second air bag being exhausted through the second air supply line in one embodiment of a telescopic enteroscope assembly of the present invention;

[0028] Figure 11 A perspective schematic diagram (partially cutaway) of a movable sleeve in one embodiment of a telescopic enteroscope assembly of the present invention;

[0029] Figure 12 This is a three-dimensional schematic diagram of the inner tube in one embodiment of a telescopic enteroscope assembly of the present invention.

[0030] In the figure: 200, sleeve; 201, first air supply pipeline; 202, biopsy pipeline; 2021, biopsy port; 203, water injection pipeline; 2031, water injection hole; 204, connecting line; 2041, camera; 205, first airbag; 206, inner tube; 300, outer tube; 301, second airbag; 302, second air supply pipeline; 3021, air outlet hole; 303, auxiliary airbag; 304, sleeve hole; 305, middle airbag ring; 306, diaphragm; 307, side airbag ring; 308, second connecting air path; 3081, first connecting air path; 309, sealing membrane sleeve; 310, movable sleeve; 311, support bar; 312, sealing ring; 313, internal thread; 314, blade; 315, support rib; 316, external thread. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] An embodiment of a telescopic enteroscope assembly of the present invention is as follows Figures 1 to 12 As shown, the telescopic enteroscope assembly includes a cannula 200, and also includes a first airbag 205 and a second airbag 301 spaced apart on the outer wall of the cannula 200 along the extension direction of the cannula 200. The cannula 200 is used to extend into the intestine to examine the intestinal interior. The cannula 200 includes an inner tube 206 and an outer tube 300 that are nested together. The outer tube 300 has a socket hole 304 therein, and the inner tube 206 is movably inserted into the socket hole 304 of the outer tube 300. The inner tube 206 and the outer tube 300 are both flexible hoses that can bend and deform, and thus can bend and deform as the intestine bends. It should be noted that due to the long lengths of the inner tube 206 and the outer tube 300, only a portion of the inner tube 206 and the outer tube 300 are shown in the drawings of the present invention. The first airbag 205 is disposed on the outer wall of the inner tube 206, and the second airbag 301 is disposed on the outer wall of the outer tube 300. Here, it is assumed that the first airbag 205 is located in front of the second airbag 301, and the inner tube 206 is set at the front end of the first airbag 205. During endoscopic examination, the rear end of the inner tube 206 is inserted into the outer tube 300, the first airbag 205 and the second airbag 301 are close to each other, and then the front end of the inner tube 206 is extended into the intestine from the anus. The front ends of the first airbag 205 and the inner tube 206 will enter the intestine before the second airbag 301 and the outer tube 300. The sleeve 200 is provided with a water injection pipeline 203, a first air supply pipeline 201 and a second air supply pipeline 302. The water injection pipeline 203 is used to inject water into the intestine to lubricate the inside of the intestine. The first air supply pipeline 201 is used to inflate and deflate the first airbag 205. The second air supply pipeline 302 is used to inflate and deflate the second airbag 301. During endoscopic examination, the first airbag 205 and the second airbag 301 are alternately inflated and deflated. When the first airbag 205 and the second airbag 301 are inflated, they support the inner wall of the intestine, thereby connecting the sleeve 200 to the intestine. When the sleeve 200 is pulled back, the curved intestine can be straightened to facilitate a comprehensive inspection of the position of the intestinal folds.

[0033] In the present invention, an auxiliary airbag 303 is further provided on the sleeve 200. In this embodiment, there are two auxiliary airbags 303, which are arranged in one-to-one correspondence with the first airbag 205 and the second airbag 301 respectively. The two auxiliary airbags 303 are the first auxiliary airbag and the second auxiliary airbag, respectively. The first auxiliary airbag is located on one side of the first airbag 205, and the second auxiliary airbag is located on one side of the second airbag 301. The first airbag 205 and the second airbag 301 respectively constitute connecting airbags for inflating the two auxiliary airbags 303, wherein the first airbag 205 is a first connecting airbag for inflating the first auxiliary airbag, and the second airbag 301 is a second connecting airbag for inflating the second auxiliary airbag. In this embodiment, the two auxiliary airbags 303 have the same structure, and both auxiliary airbags 303 are composed of three airbag rings. Taking the second auxiliary airbag as an example, Figures 2 to 11 As shown, the three airbag rings of the second auxiliary airbag are arranged side by side and closely attached to the outer wall of the outer tube 300. The three airbag rings include a central airbag ring 305 located in the middle and side airbag rings 307 located on either side of the central airbag ring 305. The three airbag rings form a "mountain"-shaped cross-section, and the sidewalls of the three airbag rings are disconnected from each other. The sidewalls of the outer tube 300 are defined with a first connecting airway 3081 and a second connecting airway 308. One end of the first connecting airway 3081 is connected to the central airbag ring 305, and the other end is connected to the second airbag 301 when the second airbag 301 is not squeezed by small intestinal peristalsis. After the second airbag 301 is squeezed by small intestinal peristalsis, it is disconnected from the second airbag 301. The second communicating air path 308 is a three-way pipe having three ports connected to each other. One of the three ports is connected to the second air bag 301 after the second air bag 301 is squeezed by the peristalsis of the small intestine, and the other two ports are always connected to the side air bag ring 307. Figure 7 The direction indicated by the middle arrow B enters the side airbag ring 307 through the second connecting air path 308, so that the height of the two side airbag rings 307 is greater than that of the middle airbag ring 305, so that the cross-section of the second auxiliary airbag is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine.

[0034] In this embodiment, one end of the second airbag 301 is fixedly connected to the outer wall of the outer tube 300, and the other end is movably connected to the outer wall of the outer tube 300. When the inflated second airbag 301 is squeezed by the peristalsis of the small intestine, the end of the second airbag 301 movably connected to the outer wall of the outer tube 300 can move along the outer wall of the outer tube 300. Figure 7The second airbag 301 moves in the direction indicated by the middle arrow C toward the second auxiliary airbag. In this embodiment, one end of the second airbag 301 that is movably connected to the outer wall of the outer tube 300 is sealed and fixedly connected to a movable sleeve 310. One end of the second airbag 301 is movably connected to the outer wall of the sleeve 200 through the movable sleeve 310. The movable sleeve 310 is movably mounted on the outer wall of the sleeve 200 and can reciprocate along the extension direction of the sleeve 200. In this embodiment, the inner wall of the movable sleeve 310 is provided with an internal thread 313, and the outer wall of the sleeve 200 is provided with an external thread 316. The movable sleeve 310 is screwed onto the sleeve 200 through the internal thread 313 and the external thread 316. The interior of the movable sleeve 310 is provided with an annular air chamber coaxial with the movable sleeve 310. The annular air chamber constitutes an air passage for connecting the auxiliary airbag 303 and the second airbag 301. In this embodiment, the annular air chamber is provided with blades 314. When the inflated second airbag 301 is squeezed by the peristalsis of the small intestine, the gas inside the second airbag 301 passes through the annular air chamber, which drives the movable sleeve 310 to rotate relative to the outer tube 300 through the blades 314. The movable sleeve 310 at the end of the second airbag 301 can move along the length direction of the outer tube 300 while rotating. When the movable sleeve 310 rotates relative to the outer tube 300, since the end of the second airbag 301 away from the movable sleeve 310 is fixedly connected to the outer tube 300, the end of the second airbag 301 connected to the movable sleeve 310 will be twisted relative to the other end under the drive of the movable sleeve 310, as shown in FIG. Figure 4 In the state shown, since the second airbag 301 is made of a material that can shrink and deform, when the intestine ends, under the action of the second airbag 301's own restoring elasticity, the end of the second airbag 301 connected to the movable sleeve 310 will drive the movable sleeve 310 to rotate in the opposite direction and reset.

[0035] In this embodiment, one end of the airway is connected to the interior of the second airbag 301, and the other end is used to connect to the first connecting air path 3081 or the second connecting air path 308. When the inflated second airbag 301 is not squeezed by small intestine peristalsis, the movable sleeve 310 is in the initial position, the airway is connected to the first connecting air path 3081, and the second airbag 301 is connected to the middle airbag ring 305 through the first connecting air path 3081. When the inflated second airbag 301 is squeezed by the peristalsis of the small intestine, the blades 314 in the annular air chamber are pushed by the gas in the second airbag 301, causing the movable sleeve 310 to rotate relative to the outer tube 300, and then the movable sleeve 310 moves a certain distance toward the second auxiliary airbag, so that the first connecting air path 3081 is blocked by the movable sleeve 310. At this time, the airway in the movable sleeve 310 is connected with the second connecting air path 308, so that the second airbag 301 is connected with the side airbag ring 307 through the second connecting air path 308, so that the gas inside the second airbag 301 enters the side airbag ring 307 through the second connecting air path 308, and then the height of the two side airbag rings 307 is greater than that of the middle airbag ring 305, so that the cross-section of the second auxiliary airbag is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine.

[0036] The structure of the first auxiliary airbag is the same as that of the second auxiliary airbag. The three airbag rings of the first auxiliary airbag are arranged side by side and tightly against the outer wall of the inner tube 206. The three airbag rings are respectively a middle airbag ring 305 located in the middle position and side airbag rings 307 located on both sides of the middle airbag ring 305. In the initial state, the three airbag rings form a "mountain"-shaped structure in cross section, and the side walls of the three airbag rings are not connected to each other. A first connecting air path 3081 and a second connecting air path 308 are also provided on the side wall of the inner tube 206. One end of the first connecting air path 3081 is connected to the middle airbag ring 305 of the first auxiliary airbag, and the other end is connected to the first airbag 205 when the first airbag 205 is not squeezed by the peristalsis of the small intestine. After the first airbag 205 is squeezed by the peristalsis of the small intestine, it is disconnected from the first airbag 205. The second connecting air path 308 is a three-way pipe. The three-way pipe has three ports that are interconnected. The three ends One of the ports is connected to the first airbag 205 after the first airbag 205 is squeezed by the peristalsis of the small intestine, and the other two ports are always connected to the side airbag ring 307. After the first airbag 205 is squeezed by the peristalsis of the small intestine, the internal gas enters the side airbag ring 307 through the second connecting air path 308, so that the height of the two side airbag rings 307 is greater than that of the middle airbag ring 305, so that the cross-section of the first auxiliary airbag is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine.

[0037] In this embodiment, each movable sleeve 310 has an arcuate support bar 311 fixed to one end surface thereof connected to the first airbag 205 and the second airbag 301. There are multiple support bars 311, evenly spaced along the circumference of the movable sleeve 310, and used to support the inner walls of the first airbag 205 and the second airbag 301. A sealing membrane sleeve 309 is connected between the first auxiliary airbag and the second auxiliary airbag at one end of each movable sleeve 310 away from the support bar 311. The sealing membrane sleeve 309 located between the first airbag 205 and the first auxiliary airbag has one end fixedly connected to the outside of the first auxiliary airbag and the other end fixedly connected to the movable sleeve 310 at the end of the first airbag 205. The sealing membrane sleeve 309 located between the second airbag 301 and the second auxiliary airbag has one end fixedly connected to the outside of the second auxiliary airbag and the other end fixedly connected to the movable sleeve 310 at the end of the second airbag 301.

[0038] The first and second auxiliary airbags are each provided with a diaphragm 306 on their outer peripheries. Each auxiliary airbag 303 has multiple diaphragms 306, evenly spaced along the circumference of the corresponding auxiliary airbag 303. Two adjacent diaphragms 306 on each auxiliary airbag 303 form a groove with the outer periphery of the auxiliary airbag 303. To enhance the sealing effect, sealing rings 312 are provided on the inner wall of the movable sleeve 310 on either side of the annular air chamber outlet. To enhance the strength of the movable sleeve 310, support ribs 315 are provided within the movable sleeve 310 at the outlet of the annular air chamber. Multiple support ribs 315 are evenly spaced along the circumference of the movable sleeve 310.

[0039] In this embodiment, the inner tube 206 has a water injection hole 2031 and a biopsy port 2021 at the front end. The first air supply line 201 and the water injection line 203 are respectively disposed in the inner tube 206, and the water injection line 203 is connected to the water injection hole 2031 at the front end of the inner tube 206. The inner tube 206 also has a biopsy line 202, which is connected to the biopsy port 2021. The second air supply line 302 is disposed in the outer tube 300. One end of the first air supply line 201 extending into the inner tube 206 and one end of the second air supply line 302 extending into the outer tube 300 penetrate the outer walls of the inner tube 206 and outer tube 300, respectively, to form an air outlet 3021. A camera 2041 is disposed at the front end of the inner tube 206. In this embodiment, the camera 2041 is a CMOS camera. A connecting line 204 is disposed in the inner tube 206 to connect to the camera 2041.

[0040] When using the telescopic enteroscope assembly of the present invention, the sleeve 200, along with the first airbag 205 and the second airbag 301, is inserted into the intestine from the back to the front. At this time, the first airbag 205 and the second airbag 301 are not inflated and are in a deflated state. When the first airbag 205 and the second airbag 301 reach the small intestine, air is first inflated into the second airbag 301 through the second air supply line 302, causing the second airbag 301 to expand and support the inner wall of the intestine. Then, the outer tube 300 is kept in position and the inner tube 206 is pushed forward, causing the inner tube 206 to move forward with the first airbag 205, and the first airbag 205 gradually moves away from the second airbag 301. When the first airbag 205 moves forward a certain distance, the inner tube 206 is stopped from being pushed forward, and the first air supply line 201 then inflates the first airbag 205, causing the first airbag 205 to expand and support the inner wall of the intestine. Then, the gas in the second airbag 301 is extracted through the second air supply line 302, so that the second airbag 301 is in a contracted state. At this time, the first airbag 205 remains inflated and is in a state of supporting the inner wall of the intestine. Then, the position of the inner tube 206 is kept unchanged, and the outer tube 300 is pushed forward. The outer tube 300 and the second airbag 301 together move forward toward the first airbag 205. When the second airbag 301 approaches the first airbag 205, the outer tube 300 is stopped from being pushed. Then, the second airbag 301 is inflated through the second air supply line 302, so that the second airbag 301 and the first airbag 205 are both inflated and in a state of supporting the inner wall of the intestine. Then, the inner tube 206 and the outer tube 300 are pulled back at the same time, so that the first airbag 205 and the second airbag 301 straighten the inner wall of the intestine backward. The first air supply line 201 then draws air from the first airbag 205, causing it to deflate while the second airbag 301 remains inflated. The inner tube 206 is then pushed forward again, driving the first airbag 205 forward. This process is repeated, alternating between the first and second airbags 205 and 301, pushing them forward and then pulling them back simultaneously. A camera 2041 at the front of the inner tube 206 captures the interior of the intestine and connects to an external display device via a cable 204.

[0041] Since there are constant bursts of peristalsis in the small intestine, when the first airbag 205 and the second airbag 301 are in a contracted state, the first airbag 205 and the second airbag 301 will not be squeezed by the intestinal peristalsis. When the first airbag 205 and the second airbag 301 are in an inflated state, the first airbag 205 and the second airbag 301 will be squeezed by the intestinal peristalsis, so that the gas in the first airbag 205 and the second airbag 301 will respectively pass through the annular air chamber in the corresponding movable sleeve 310 and enter the first auxiliary airbag and the second auxiliary airbag. Specifically, taking the second auxiliary airbag as an example, when the second airbag 301 is not squeezed by the intestinal peristalsis, the position of the movable sleeve 310 connected to the second airbag 301 is as follows: Figure 5 and Figure 6 As shown, at this time, the movable sleeve 310 blocks the second communicating air path 308, and the second airbag 301 is connected to the middle airbag ring 305 of the second auxiliary airbag through the first communicating air path 3081. When the inflated second airbag 301 is squeezed by the peristalsis of the small intestine, the air pressure in the second airbag 301 will increase instantly, causing the gas in the second airbag 301 to flow into the second auxiliary airbag. The blades 314 in the annular air chamber of the movable sleeve 310 are pushed by the gas in the second airbag 301, causing the movable sleeve 310 to rotate relative to the outer tube 300, and then the movable sleeve 310 moves a certain distance toward the second auxiliary airbag, so that the first communicating air path 3081 is blocked by the movable sleeve. 310 is blocked. At this time, the annular air chamber in the movable sleeve 310 is connected to the second connecting air path 308, so that the second airbag 301 is connected to the side airbag ring 307 through the second connecting air path 308, so that the gas inside the second airbag 301 enters the side airbag ring 307 through the second connecting air path 308, and then the height of the two side airbag rings 307 is greater than that of the middle airbag ring 305, so that the cross-section of the second auxiliary airbag is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine. When the first airbag 205 is subjected to peristaltic extrusion, the change process of the first auxiliary airbag is the same as the change process of the second auxiliary airbag mentioned above. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A telescopic enteroscope assembly, comprising a sleeve (200) and a first air bag (205) and a second air bag (301) arranged at intervals on the sleeve (200), wherein a water injection pipeline (203), a first air supply pipeline (201) and a second air supply pipeline (302) are provided in the sleeve (200), wherein the first air supply pipeline (201) is used to inflate and deflate the first air bag (205), and the second air supply pipeline (302) is used to inflate and deflate the second air bag (301), and wherein the sleeve (200) is further provided with an auxiliary air bag ( 303), the auxiliary airbag (303) is composed of three airbag rings, which are arranged side by side and tightly on the outer wall of the sleeve (200), forming a "mountain"-shaped cross-section in the initial state. The three airbag rings are respectively a middle airbag ring (305) located in the middle position and side airbag rings (307) located on both sides of the middle airbag ring (305), and the side walls of the three airbag rings are not connected to each other; at least one of the first airbag (205) and the second airbag (301) is a connecting airbag, and the connecting airbag is squeezed by the peristalsis of the small intestine. Inflate the auxiliary airbag (303), the auxiliary airbag (303) is located on one side of the connecting airbag, and a first connecting air path (3081) and a second connecting air path (308) are provided on the side wall of the sleeve (200). One end of the first connecting air path (3081) is connected to the middle airbag ring (305), and the other end is connected to the connecting airbag when the connecting airbag is not squeezed by the peristalsis of the small intestine, and is disconnected from the connecting airbag after the connecting airbag is squeezed by the peristalsis of the small intestine. The second connecting air path (308) is a three-way pipe with mutual The three ports are connected, one of the three ports is connected to the connecting airbag after the connecting airbag is squeezed by the peristalsis of the small intestine, and the other two ports are always connected to the two side airbag rings (307). After the connecting airbag is squeezed by the peristalsis of the small intestine, the internal gas enters the side airbag rings (307) through the second connecting air path (308), so that the height of the two side airbag rings (307) is greater than that of the middle airbag ring (305), so that the cross section of the auxiliary airbag (303) is a suction cup structure with high sides and a concave middle, and the suction cup structure sucks the inner wall of the small intestine.

2. The telescopic enteroscope assembly according to claim 1, characterized in that: One end of the communicating airbag is fixedly connected to the outer wall of the sleeve (200), and the other end is movably connected to the outer wall of the sleeve (200). When the inflated communicating airbag is subjected to the peristaltic squeezing of the small intestine, the end of the communicating airbag movably connected to the outer wall of the sleeve (200) can move along the extension direction of the sleeve (200).

3. The telescopic enteroscope assembly according to claim 2, characterized in that: One end of the communicating airbag that is movably connected to the outer wall of the sleeve (200) is sealed and fixedly connected with a movable sleeve (310), one end of the communicating airbag is movably connected to the outer wall of the sleeve (200) through the movable sleeve (310), the movable sleeve (310) is movably sleeved on the outer wall of the sleeve (200) and can reciprocate along the extension direction of the sleeve (200), an airway is provided inside the movable sleeve (310), one end of the airway is connected to the interior of the communicating airbag, and the other end is used to communicate with the first communicating airway (3081) or the second communicating airway (308), and when the communicating airbag after inflation is not squeezed by the peristalsis of the small intestine, the movable sleeve (310) is inflated. 10) is located at the initial position, the airway is connected to the first communicating airway (3081), the communicating airbag is connected to the middle airbag ring (305) through the first communicating airway (3081), and when the inflated communicating airbag is squeezed by the peristalsis of the small intestine, the movable sleeve (310) moves toward the auxiliary airbag (303), the first communicating airway (3081) is blocked by the movable sleeve (310), and the airway is connected to the second communicating airway (308), so that the communicating airbag is connected to the side airbag ring (307) through the second communicating airway (308), and the gas inside the communicating airbag enters the side airbag ring (307) through the second communicating airway (308).

4. The telescopic enteroscope assembly according to claim 3, characterized in that: An internal thread (313) is provided on the inner wall of the movable sleeve (310), and an external thread (316) is provided on the outer wall of the sleeve (200). The movable sleeve (310) is screwed onto the sleeve (200) by the internal thread (313) and the external thread (316). An annular air chamber coaxial with the movable sleeve (310) is provided inside the movable sleeve (310). The airway is formed by the annular air chamber. Blades (314) are provided inside the annular air chamber. When the inflated communicating air bag is squeezed by the peristalsis of the small intestine, the gas inside the communicating air bag passes through the annular air chamber and drives the movable sleeve (310) to rotate relative to the sleeve (200) through the blades (314). The movable sleeve (310) rotates and moves along the length direction of the sleeve (200) at the same time.

5. The telescopic enteroscope assembly according to claim 4, characterized in that: An arc-shaped support bar (311) is fixed on the end surface of one end of the movable sleeve (310) connected to the communicating airbag. There are a plurality of the support bars (311) which are evenly spaced and distributed along the circumference of the movable sleeve (310).

6. The telescopic enteroscope assembly according to claim 5, characterized in that: A sealing film sleeve (309) is connected between one end of the movable sleeve (310) away from the support bar (311) and the auxiliary airbag (303); one end of the sealing film sleeve (309) is fixedly connected to the outside of the auxiliary airbag (303), and the other end is fixedly connected to the movable sleeve (310).

7. The telescopic enteroscope assembly according to claim 6, characterized in that: The auxiliary airbag (303) is provided with a diaphragm (306) on its outer periphery. There are a plurality of diaphragms (306), which are evenly spaced and distributed along the circumference of the auxiliary airbag (303). Two adjacent diaphragms (306) and the outer periphery of the auxiliary airbag (303) form a groove.

8. The telescopic enteroscope assembly according to any one of claims 1 to 7, characterized in that: There are two auxiliary airbags (303), namely a first auxiliary airbag and a second auxiliary airbag. There are also two connecting airbags, namely a first connecting airbag and a second connecting airbag. The first airbag (205) is a first connecting airbag used to inflate the first auxiliary airbag, and the second airbag (301) is a second connecting airbag used to inflate the second auxiliary airbag. The first auxiliary airbag is located on one side of the first airbag (205), and the second auxiliary airbag is located on one side of the second airbag (301). The two auxiliary airbags (303) have the same structure. Two first connecting air paths (3081) and two second connecting air paths (308) are respectively provided on the inner wall of the sleeve (200).

9. The telescopic enteroscope assembly according to claim 8, characterized in that: The sleeve (200) includes an inner tube (206) and an outer tube (300) that are sleeved together, the inner tube (206) is movably inserted into the outer tube (300), the first airbag (205) and the first auxiliary airbag are arranged on the outer side wall of the inner tube (206), and the second airbag (301) and the second auxiliary airbag are arranged on the outer side wall of the outer tube (300).

10. The telescopic enteroscope assembly according to claim 9, characterized in that: The first air supply pipeline (201) and the water injection pipeline (203) are respectively arranged in the inner tube (206), and the second air supply pipeline (302) is arranged in the outer tube (300). A camera (2041) is provided at the end of the inner tube (206), and a connecting line (204) connected to the camera (2041) is provided in the inner tube (206).

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