Nursing auxiliary device for enteroscopy

Abstract

The invention relates to the technical field of medical equipment, in particular to a nursing auxiliary device for enteroscopy, which comprises a protective barrel and a traction piece, and because a plurality of protective bags are arranged at intervals in the axial direction of the protective barrel, part of rectum of a detector is in an unexpanded state in the axial direction of the protective barrel, so that the discomfort of the detector is reduced; a traction piece is arranged on each protection bag, a plurality of first traction units and a plurality of second traction units are arranged in each traction piece, and according to the distribution state of the plurality of first traction units and the plurality of second traction units in the circumferential direction of the protection bags, the traction pieces are arranged in the protection bags; the strength of the first traction unit and the second traction unit for traction of the outer contour of the protection bag towards the axis of the protection barrel is improved, so that in the circumferential direction of the protection bag, the dilation degrees of the rectums of different parts of the detected person are different, and the discomfort of the detected person is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a nursing auxiliary device for colonoscopy. Background Art

[0002] In the medical field, colonoscopy and treatment are important means of diagnosing and treating intestinal diseases. By inserting the colonoscope through the anus, doctors can directly observe the internal conditions of the intestine, promptly detect lesions, and provide appropriate treatment. Although lubricant is applied to the anus and the colonoscope body before the examination to reduce friction, the colonoscope body is relatively hard during the process of entering and exiting the anus, and the mucosa near the rectum and anus is relatively fragile. Even with the effect of lubricant, the friction between the colonoscope and the mucosa during the entry and exit process may still cause damage to the mucosa, resulting in discomfort to the examinee after the examination.

[0003] In the prior art, a Chinese patent with authorization announcement number CN218899840U discloses an anal protective sleeve. In the public document, the sleeve is placed at the examinee's anus during a colonoscopy. The colonoscope is inserted or removed through a channel in the main body for examination during the examination. The main body can protect the examinee's anus during the colonoscopy. The colonoscope will not repeatedly rub the examinee's anus when inserted or removed, thereby avoiding mucosal damage and bleeding in the examinee's anus due to repeated friction. However, when the main body is placed at the anus, the entire outer wall of the main body will directly contact the examinee's anus. When the main body enters the rectum, the main body will rigidly expand the rectum, which can easily cause tearing of the rectum and anus, causing discomfort to the examinee after the examination. Summary of the Invention

[0004] The present invention provides a nursing auxiliary device for colonoscopy, so as to solve the problem that the existing colonoscopy auxiliary device easily causes discomfort to the examinee after the examination.

[0005] The present invention provides a nursing auxiliary device for colonoscopy using the following technical solutions: A nursing auxiliary device for colonoscopy comprises a protective tube and a traction member.

[0006] The protective tube has a conveying channel extending along its own axial direction; the outer wall of the protective tube is provided with a plurality of protective bags, and the plurality of protective bags are arranged at intervals along the axis of the protective tube; two adjacent protective bags are in a state of mutual communication; the protective tube is provided with an air supply pipe connected to one of the protective bags, and the other end of the air supply pipe is connected to an air supply pump, and the air supply pump can supply air to the inside of the protective bag through the air supply pipe; the traction members are provided in multiple groups, each group of the traction members is used to pull the outer contour of one of the protective bags toward the axial direction of the protective tube, and each group of the traction members includes a plurality of first traction units and a plurality of second traction units, and the first traction units and the second traction units are alternately distributed inside the protective bag; the first traction unit and the second traction unit are both used to pull the outer contour of the protective bag close to the axis of the protective tube, and the traction strength of the first traction unit is greater than the traction strength of the second traction unit.

[0007] Further, the first traction unit includes a first telescopic rod, a first fixed rod and a first compression spring; the first telescopic rod includes a first fixed part and a first sliding part, the first sliding part is slidably inserted into the inside of the first fixed part, one end of the first fixed part is fixedly connected to the protective tube, and one end of the first sliding part is fixedly connected to the inner wall of the protective bag; one end of the first fixed rod is slidably arranged inside the first sliding part, and the other end of the first fixed rod is fixedly connected to the inside of the first fixed part; the first compression spring is arranged inside the first sliding part, one end of the first compression spring is fixedly connected to the end of the first fixed rod, and the other end of the first compression spring is fixedly connected to one end of the first sliding part inside the first fixed part.

[0008] Furthermore, the second traction unit includes a second compression spring, a third compression spring, a fourth compression spring, a second telescopic rod and a second fixed rod, the second telescopic rod includes a second fixed portion and a second sliding portion, the second sliding portion is slidably inserted into the second fixed portion, one end of the second fixed portion is fixedly connected to the protective tube, and one end of the second sliding portion is fixedly connected to the inner wall of the protective bag; one end of the second fixed rod is slidably arranged inside the second sliding portion, and the other end of the second fixed rod is fixedly connected to the inside of the second fixed portion; a plurality of stepped grooves are arranged inside the second sliding portion, and a first limiting plate, a second limiting plate and a third limiting plate are arranged on the second fixed rod, and the first limiting plate, the The second limiting plate and the third limiting plate are both slidably arranged inside the second sliding part; the diameter of the first limiting plate is smaller than the diameter of the second limiting plate, the diameter of the second limiting plate is smaller than the diameter of the third limiting plate, the first limiting plate is fixedly connected to the second fixed rod, the second compression spring is arranged between the first limiting plate and the second limiting plate, the third compression spring is arranged between the second limiting plate and the third limiting plate, and the fourth compression spring is arranged at one end of the third limiting plate and the second sliding part inside the second fixed part; the stiffness coefficient of the second compression spring is smaller than the stiffness coefficient of the third compression spring, and the stiffness coefficient of the third compression spring is smaller than the stiffness coefficient of the fourth compression spring.

[0009] Furthermore, the spring constant of the second compression spring is equal to the spring constant of the first compression spring.

[0010] Furthermore, a mounting cavity is provided inside the side wall of the protective tube, and a plurality of communication ports are provided on the side wall of the protective tube, and the communication ports connect the mounting cavity with the interior of the protective bag; the air supply pump is used to supply air into the mounting cavity.

[0011] Furthermore, a plurality of fixing rings are fixedly installed in the installation cavity, and the plurality of fixing rings are evenly spaced along the axial direction of the protective tube. Each of the first fixing parts is fixedly connected to the fixing ring through one of the communicating ports, and each of the second fixing parts is fixedly connected to the fixing ring through one of the communicating ports.

[0012] Furthermore, the cross section of the protective bag along any diameter direction is trapezoidal, and the length of the end surface of the protective bag close to the protective tube in the axial direction of the protective tube is smaller than the length of the end surface of the protective bag away from the protective tube in the axial direction of the protective tube.

[0013] Furthermore, a plurality of groups of positioning clips are provided inside the delivery channel, and the positioning clips are arranged at intervals along the extension direction of the delivery channel; each group of the positioning clips is used to position the colonoscope.

[0014] Furthermore, the positioning clamp includes a first clamp body and a second clamp body, the first clamp body and the second clamp body are both arc-shaped, the first clamp body is fixedly connected to the side wall of the delivery channel by a third telescopic rod, and the second clamp body is fixedly connected to the side wall of the delivery channel by a fourth telescopic rod, and the third telescopic rod and the fourth telescopic rod are both provided with a pushing spring inside. When the pushing spring is in its original length state, the first clamp body and the second clamp body are in abutment state. When the colonoscope is inserted into the delivery channel, the colonoscope can push the first clamp body and the second clamp body.

[0015] Furthermore, a plurality of first damping rollers are rotatably provided on the first clamping body, and a plurality of second damping rollers are rotatably provided on the second clamping body. The first damping rollers have resistance when rotating on the first clamping body, and the second damping rollers have resistance when rotating on the second clamping body.

[0016] The beneficial effects of the present invention are as follows: a nursing auxiliary device for colonoscopy of the present invention comprises a protective tube and a traction member. When a person to be examined is examined using a colonoscope, the protective tube is first placed at the anus of the person to be examined. In the initial state, the protective bag is in a deflated state, and the volume of the protective bag is at its minimum. During the placement of the protective tube, in order to reduce the discomfort of the person to be examined, a lubricating liquid is applied to the end of the protective tube and the outer wall of the protective bag. When the protective tube is placed in a designated position, an air supply pump is used to supply air to the interior of multiple protective bags at the same time, and the volumes of the multiple protective bags begin to expand, and the protective bags expand the rectum of the person to be examined. Since the multiple protective bags are spaced apart in the axial direction of the protective tube, part of the rectum of the person to be examined is in an unexpanded state in the axial direction of the protective tube, thereby reducing the discomfort of the person to be examined. In addition, after the protective bag expands, the sealing between the rectum and the protective tube is increased to prevent the gas supplied to the rectum by the colonoscope from leaking out from the gap between the rectum and the protective tube.

[0017] Furthermore, by arranging a traction member on each protective sac, and arranging multiple first traction units and multiple second traction units in one traction member, both the first traction unit and the second traction unit can pull the outer contour of the protective sac close to the axis of the protective tube. According to the distribution state of the multiple first traction units and the multiple second traction units in the circumferential direction of the protective sac, and the strength of the first traction unit and the second traction unit in pulling the outer contour of the protective sac toward the axis of the protective tube, the rectum of different parts of the tester is expanded to different degrees in the circumferential direction of the protective sac, thereby further reducing the discomfort of the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 A schematic structural diagram of a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 2 A longitudinal cross-sectional view of a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 3 A transverse cross-sectional view of a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged view of point A in the middle; Figure 5 for Figure 3 A partial enlarged view of point B in the middle; Figure 6 for Figure 3 A partial enlarged view of point C in the middle; Figure 7 An exploded diagram of the structure of a positioning clip in a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 8 An exploded diagram of the structure of a traction member and a fixing ring in a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 9 A cross-sectional view of a second sliding portion of a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 10 A cross-sectional view of a first sliding portion of a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention; Figure 11 This is a schematic structural diagram of a protective tube and a protective bag in a nursing auxiliary device for colonoscopy provided by an embodiment of the present invention after being cut apart.

[0020] In the figure: 110, protective tube; 111, conveying channel; 120, colonoscope; 130, protective bag; 140, air supply pipe; 210, first telescopic rod; 211, first fixed part; 212, first sliding part; 220, first fixed rod; 230, first compression spring; 240, second compression spring; 250, third compression spring; 260, fourth compression spring; 270, second telescopic rod; 271, second fixed part; 272, second sliding part; 280, second fixed rod; 281, first limiting plate; 282, second limiting plate; 283, third limiting plate; 310, mounting cavity; 320, fixing ring; 330, positioning clamp; 331, first clamp body; 332, second clamp body; 340, pushing spring; 350, first damping roller; 360, second damping roller. DETAILED DESCRIPTION

[0021] 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 creative efforts are within the scope of protection of the present invention.

[0022] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on those shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or element referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention.

[0023] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] like Figures 1 to 11As shown, an embodiment of the present invention provides a nursing auxiliary device for colonoscopy, which includes a protective tube 110 and a traction member.

[0025] The protective tube 110 has a delivery channel 111 extending along its axis. The delivery channel 111 passes through both end surfaces of the protective tube 110 along its axis. The diameter of the delivery channel 111 is larger than the diameter of the colonoscope 120, ensuring that the colonoscope 120 can pass through the delivery channel 111. The outer wall of the protective tube 110 is provided with multiple protective capsules 130, which are spaced apart along the axis of the protective tube 110. In the initial state, the multiple protective capsules 130 are in a deflated state. When two adjacent protective capsules 130 are in a state of interconnection, the multiple protective capsules 130 are in a state of interconnection. The protective tube 110 is provided with an air supply pipe 140 connected to one of the protective capsules 130. The other end of the air supply pipe 140 is connected to an air supply pump, which can supply air to the interior of the protective capsules 130 through the air supply pipe 140. When the air supply pump is activated, the volume of the multiple protective capsules 130 increases simultaneously. Furthermore, when performing a colonoscopy 120 examination on the examinee, the protective tube 110 is first placed at the examinee's anus. In order to reduce the examinee's discomfort, lubricating liquid is applied to the end of the protective tube 110 and the outer wall of the protective bag 130. When the protective tube 110 is placed in the specified position, the air supply pump is started, and the volume of multiple protective bags 130 increases, and the protective bags 130 expand the examinee's rectum. When the colonoscope 120 enters the rectum through the delivery channel 111, in order to clearly observe the situation in the intestine, air is usually supplied to the intestine. In order to prevent the gas delivered to the intestine from leaking out through the gap between the rectum and the protective tube 110, the sealing between the rectum and the protective tube 110 is increased.

[0026] Multiple groups of traction members are provided, each group being used to pull the outer contour of a protective bladder 130 toward the axis of the protective tube 110. Each group of traction members comprises a plurality of first traction units and a plurality of second traction units. These are alternately distributed within the protective bladder 130 and arranged circumferentially. The first and second traction units are alternately distributed. Both the first and second traction units are capable of pulling the outer contour of the protective bladder 130 toward the axis of the protective tube 110, and the pulling strength of the first traction units is greater than that of the second traction units. Due to the distribution of the first and second traction units circumferentially of the protective bladder 130 and the strength of the traction exerted by the first and second traction units on the outer contour of the protective bladder 130 toward the axis of the protective tube 110, the rectum of the patient is distended to varying degrees in different circumferential regions of the protective bladder 130, further reducing discomfort for the patient.

[0027] The present invention relates to a nursing auxiliary device for colonoscopy. When a colonoscope 120 is used to examine a person, the protective tube 110 is first placed at the anus of the examiner. In the initial state, the protective bag 130 is in a deflated state. At this time, the volume of the protective bag 130 is at its minimum. During the placement of the protective tube 110, in order to reduce the discomfort of the examiner, a lubricating liquid is applied to the end of the protective tube 110 and the outer wall of the protective bag 130. When the protective tube 110 is placed at the designated position, an air supply pump is used to simultaneously supply air to the interior of multiple protective bags 130. When air is supplied, the volume of the multiple protective balloons 130 begins to expand, and the protective balloons 130 expand the examinee's rectum. Since the multiple protective balloons 130 are arranged at intervals in the axial direction of the protective tube 110, part of the examinee's rectum is in an unexpanded state in the axial direction of the protective tube 110, thereby reducing the examinee's discomfort. In addition, after the protective balloons 130 are expanded, the sealing between the rectum and the protective tube 110 is increased, preventing the gas supplied to the inside of the rectum by the colonoscope 120 from leaking out from the gap between the rectum and the protective tube 110. Furthermore, by arranging a traction member on each protective bag 130, and arranging multiple first traction units and multiple second traction units in one traction member, both the first traction unit and the second traction unit can pull the outer contour of the protective bag 130 closer to the axis of the protective tube 110. According to the distribution state of the multiple first traction units and the multiple second traction units in the circumferential direction of the protective bag 130, and the strength of the first traction unit and the second traction unit in pulling the outer contour of the protective bag 130 toward the axis of the protective tube 110, the rectum of different parts of the tester is expanded to different degrees in the circumferential direction of the protective bag 130, thereby further reducing the discomfort of the tester.

[0028] In one embodiment, the first traction unit includes a first telescopic rod 210, a first fixed rod 220, and a first compression spring 230. The first telescopic rod 210 includes a first fixed portion 211 and a first sliding portion 212. The first fixed portion 211 is internally provided with a first insertion slot. One end of the first sliding portion 212 can be inserted into the first insertion slot, thereby achieving insertion of the first fixed portion 211 and the first sliding portion 212. One end of the first sliding portion 212 can slide within the first insertion slot. One end of the first fixed portion 211 is fixedly connected to the protective tube 110, and one end of the first sliding portion 212 is fixedly connected to the inner wall of the protective bag 130. The first fixed portion 211 and the first sliding portion 212 are always coaxial, and the axial direction of the first fixed portion 211 is radially aligned with the protective tube 110. The first fixed rod 220 is coaxially arranged with the first fixed part 211. The first fixed rod 220 is arranged between the first fixed part 211 and the first sliding part 212. The first sliding part 212 is hollow inside. One end of the first fixed rod 220 is slidably arranged inside the first sliding part 212. The side wall of the first fixed rod 220 passes through the end of the first sliding part 212 inside the first fixed part 211. The other end of the first fixed rod 220 is fixedly connected to the inner end of the first fixed part 211. The first compression spring 230 is arranged inside the first sliding part 212, and the first compression spring 230 is coaxially sleeved on the outside of the first fixed rod 220. One end of the first compression spring 230 is fixedly connected to the end of the first fixed rod 220 inside the first sliding part 212, and the other end of the first compression spring 230 is fixedly connected to the end of the first sliding part 212 inside the first fixed part 211. Furthermore, the first compression spring 230 is always in a compressed state, and the first compression spring 230 always has a force to reset and extend. Under the action of the reset force of the first compression spring 230, the end of the first fixed rod 220 inside the first sliding part 212 is in a state of abutting against the inner end of the first sliding part 212, thereby making the first telescopic rod 210 in the shortest state. When the protective bag 130 begins to expand, the reset force of the first compression spring 230 acts as a resistance to the expansion of the protective bag 130, preventing the protective bag 130 from over-expanding and causing the rectum of the tester to be torn.

[0029] In one embodiment, the second traction unit includes a second compression spring 240, a third compression spring 250, a fourth compression spring 260, a second telescopic rod 270, and a second fixed rod 280. The second telescopic rod 270 includes a second fixed portion 271 and a second sliding portion 272. The second fixed portion 271 is internally provided with a second insertion slot. One end of the second sliding portion 272 can be inserted into the second insertion slot, thereby interlocking the second fixed portion 271 and the second sliding portion 272. One end of the second sliding portion 272 can slide within the second insertion slot, thereby adjusting the length of the second telescopic rod 270. The other end of the second fixed portion 271 is fixedly connected to the protective tube 110 and extends radially along the protective tube 110. The other end of the second sliding portion 272 is fixedly connected to the inner wall of the protective bag 130. The second sliding portion 272 is hollow and has multiple stepped grooves. The diameter of the stepped grooves gradually increases as the second sliding portion 272 approaches the axis of the protective tube 110. One end of the second fixing rod 280 is fixedly connected to the end of the second fixing portion 271 connected to the protective tube 110, and the other end of the second fixing rod 280 is slidably arranged inside the second sliding portion 272. The side wall of the second fixing rod 280 passes through the second sliding portion 272 and is located at one end inside the second fixing portion 271. The second fixing rod 280 is coaxially arranged with the second fixing portion 271. A first limiting plate 281, a second limiting plate 282 and a third limiting plate 283 are provided on the second fixing rod 280. The first limiting plate 281, the second limiting plate 282 and the third limiting plate 283 are all arranged inside the second sliding portion 272, wherein the first limiting plate 281, the second limiting plate 282 and the third limiting plate 283 are all arranged inside the second sliding portion 272. The limiting plate 281, the second limiting plate 282, and the third limiting plate 283 are sequentially spaced apart along the axis of the second fixed rod 280. The distance between the first limiting plate 281 and the axis of the protective tube 110 is greater than the distance between the second limiting plate 282 and the axis of the protective tube 110, and the distance between the second limiting plate 282 and the axis of the protective tube 110 is greater than the distance between the third limiting plate 283 and the axis of the protective tube 110. The first limiting plate 281 is fixedly connected to the second fixed rod 280 at one end of the second sliding portion 272, and the second limiting plate 282 and the third limiting plate 283 are both slidably connected to the second fixed rod 280. Furthermore, the diameter of the first limiting plate 281 is smaller than the diameter of the second limiting plate 282, and the diameter of the second limiting plate 282 is smaller than the diameter of the third limiting plate 283. The first limiting plate 281, the second limiting plate 282, and the third limiting plate 283 each slidably engage with a stepped groove.The second compression spring 240, the third compression spring 250 and the fourth compression spring 260 are all coaxially sleeved on the outside of the second fixed rod 280, the second compression spring 240 is arranged between the first limiting plate 281 and the second limiting plate 282, the third compression spring 250 is arranged between the second limiting plate 282 and the third limiting plate 283, the fourth compression spring 260 is arranged at one end of the third limiting plate 283 and the second sliding portion 272 inside the second fixed portion 271, the second compression spring 240, the third compression spring 250 and the fourth compression spring 260 are always in a compressed state, the second compression spring 240, the third compression spring 250 and The fourth compression spring 260 always has an extension force. Under the action of the restoring force of the second compression spring 240, the third compression spring 250 and the fourth compression spring 260, one end of the second fixed rod 280 inside the second sliding part 272 is in a state of abutting the internal end of the second sliding part 272, thereby making the second telescopic rod 270 in the shortest state. When the protective bag 130 begins to expand, the restoring force of the second compression spring 240, the third compression spring 250 and the fourth compression spring 260 acts as resistance to the expansion of the protective bag 130, preventing the protective bag 130 from over-expanding and causing the rectum of the tester to be torn.

[0030] Furthermore, the spring constant of the second compression spring 240 is smaller than the spring constant of the third compression spring 250, which is smaller than the spring constant of the fourth compression spring 260, and the spring constant of the second compression spring 240 is equal to the spring constant of the first compression spring 230. By limiting the spring constants of the first, second, third, and fourth compression springs 230, 240, 250, and 260, the degree of expansion of the protective bladder 130 varies in the circumferential direction during the expansion of the protective bladder 130, thereby ensuring that the subject's rectum is expanded to varying degrees in the circumferential direction, thereby reducing the subject's discomfort.

[0031] In one embodiment, an installation cavity 310 is provided inside the side wall of the protective tube 110, and a plurality of connecting ports are provided on the side wall of the protective tube 110, which connect the installation cavity 310 with the interior of the protective bag 130. Furthermore, by providing a plurality of connecting ports, it is ensured that the plurality of protective bags 130 are all in a state of being connected to the installation cavity 310, and the air supply pipe 140 is connected to the installation cavity 310. When the protective bag 130 is placed at the anus of the tester, the air supply pump starts to supply air into the air supply pipe 140. By providing the installation cavity 310 and a plurality of connecting ports, the efficiency of simultaneously supplying air to the interior of the plurality of protective bags 130 is improved, further ensuring that the air pressure inside the plurality of protective bags 130 remains at the same state.

[0032] In one embodiment, multiple fixing rings 320 are fixedly installed in the installation cavity 310. The fixing rings 320 are evenly spaced along the axis of the protective tube 110, and each fixing ring 320 is corresponding to a protective capsule 130. Furthermore, by adjusting the position of the communication openings, each first fixing portion 211 is fixedly connected to a fixing ring 320 through a communication opening, and each second fixing portion 271 is fixedly connected to a fixing ring 320 through a communication opening. The installation of the fixing rings 320 provides a mounting foundation for the first fixing portion 211 and the second fixing portion 271.

[0033] In one embodiment, the cross section of the protective capsule 130 along any diameter direction is trapezoidal. Figure 11 As shown, the length of the end surface of the protective bag 130 close to the protective tube 110 in the axial direction of the protective tube 110 is smaller than the length of the end surface of the protective bag 130 away from the protective tube 110 in the axial direction of the protective tube 110, thereby ensuring that the protective bag 130 has a relatively large contact area with the examiner's rectum. At the same time, when the colonoscope 120 enters the examiner's intestine through the delivery channel 111, if the protective tube 110 is accidentally hit, the protective bag 130 will be deformed, causing the protective tube 110 and the protective bag 130 to be offset in the axial direction, but the contact position of the protective bag 130 with the rectum remains unchanged, thereby reducing the friction between the protective bag 130 and the rectum, thereby reducing the examiner's discomfort.

[0034] Furthermore, the end of the protective tube 110 is configured to be flared to prevent the protective tube 110 from completely entering the rectum of the tester, while facilitating the removal of the protective tube 110 from the tester's anus.

[0035] In one embodiment, multiple groups of positioning clamps 330 are provided inside the delivery channel 111. The positioning clamps 330 are spaced apart along the extension direction of the delivery channel 111. Each group of positioning clamps 330 is used to position the colonoscope 120. By providing multiple groups of positioning clamps 330, the stability of the colonoscope 120 during reciprocating motion in the delivery channel 111 is ensured. Furthermore, the positioning clamp 330 includes a first clamp body 331 and a second clamp body 332. The first clamp body 331 and the second clamp body 332 are both arc-shaped. The first clamp body 331 is fixedly connected to the side wall of the delivery channel 111 by a third telescopic rod. The second clamp body 332 is fixedly connected to the side wall of the delivery channel 111 by a fourth telescopic rod. Push springs 340 are provided inside the third telescopic rod and the fourth telescopic rod. When the push spring 340 is in its original length, the first clamp body 331 and the second clamp body 332 are in abutment. When the first clamp body 331 and the second clamp body 332 abut against each other, the third telescopic rod and the fourth telescopic rod are fixedly connected. A clamp body 331 and a second clamp body 332 form a cylindrical tube. The diameter of the tube formed by the first clamp body 331 and the second clamp body 332 is smaller than the diameter of the colonoscope 120, ensuring that when the colonoscope 120 is inserted into the delivery channel 111, the colonoscope 120 can push the first clamp body 331 and the second clamp body 332, so that the third telescopic rod and the fourth telescopic rod are shortened at the same time, and the pushing spring 340 begins to shorten and accumulate force, so that the first clamp body 331 and the second clamp body 332 are tightly against the colonoscope 120. Under the joint action of multiple positioning clamps 330, the colonoscope 120 is in a stable state in the delivery channel 111.

[0036] In one embodiment, a plurality of first damping rollers 350 are rotatably provided on the first clamping body 331, and a plurality of second damping rollers 360 are rotatably provided on the second clamping body 332. The outer side walls of the first damping roller 350 and the second damping roller 360 are both arranged in an arc shape, and the outer side walls of the first damping roller 350 and the second damping roller 360 can fit the outer side wall of the colonoscope 120. In addition, the first damping roller 350 has resistance when rotating on the first clamping body 331, and the second damping roller 360 has resistance when rotating on the second clamping body 332. When the colonoscope 120 enters the intestine of the examiner, under the action of the plurality of first damping rollers 350 and the second damping rollers 360, the speed at which the colonoscope 120 enters the intestine is slow, thereby preventing the examiner from feeling uncomfortable when the colonoscope 120 quickly enters the intestine.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, 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 nursing auxiliary device for colonoscopy, characterized in that: include: A protective tube, wherein the interior of the protective tube has a conveying passage extending along its own axial direction; a plurality of protective bags are provided on the outer side wall of the protective tube, and the plurality of protective bags are spaced apart along the axis of the protective tube; two adjacent protective bags are in a state of mutual communication; an air supply pipe connected to one of the protective bags is provided on the protective tube, and the other end of the air supply pipe is connected to an air supply pump, and the air supply pump can supply air to the interior of the protective bag through the air supply pipe; The traction members are provided in multiple groups, each group of the traction members is used to pull the outer contour of one of the protective bags toward the axial direction of the protective tube, each group of the traction members includes multiple first traction units and multiple second traction units, the first traction units and the second traction units are alternately distributed inside the protective bag; the first traction units and the second traction units are both used to pull the outer contour of the protective bag toward the axis of the protective tube, and the traction strength of the first traction unit is greater than the traction strength of the second traction unit.

2. The nursing auxiliary device for colonoscopy according to claim 1, characterized in that: The first traction unit includes a first telescopic rod, a first fixed rod and a first compression spring; the first telescopic rod includes a first fixed portion and a first sliding portion, the first sliding portion is slidably inserted into the first fixed portion, one end of the first fixed portion is fixedly connected to the protective tube, and one end of the first sliding portion is fixedly connected to the inner wall of the protective bag; one end of the first fixed rod is slidably arranged inside the first sliding portion, and the other end of the first fixed rod is fixedly connected to the inside of the first fixed portion; The first compression spring is arranged inside the first sliding part, one end of the first compression spring is fixedly connected to the end of the first fixing rod, and the other end of the first compression spring is fixedly connected to one end of the first sliding part inside the first fixing part.

3. The nursing auxiliary device for colonoscopy according to claim 2, characterized in that: The second traction unit includes a second compression spring, a third compression spring, a fourth compression spring, a second telescopic rod and a second fixed rod, the second telescopic rod includes a second fixed portion and a second sliding portion, the second sliding portion is slidably inserted into the second fixed portion, one end of the second fixed portion is fixedly connected to the protective tube, and one end of the second sliding portion is fixedly connected to the inner wall of the protective bag; one end of the second fixed rod is slidably arranged inside the second sliding portion, and the other end of the second fixed rod is fixedly connected to the inside of the second fixed portion; a plurality of stepped grooves are arranged inside the second sliding portion, and a first limiting plate, a second limiting plate and a third limiting plate are arranged on the second fixed rod, and the first limiting plate, the second The limiting plate and the third limiting plate are both slidably arranged inside the second sliding part; the diameter of the first limiting plate is smaller than the diameter of the second limiting plate, the diameter of the second limiting plate is smaller than the diameter of the third limiting plate, the first limiting plate is fixedly connected to the second fixed rod, the second compression spring is arranged between the first limiting plate and the second limiting plate, the third compression spring is arranged between the second limiting plate and the third limiting plate, and the fourth compression spring is arranged at one end of the third limiting plate and the second sliding part inside the second fixed part; the stiffness coefficient of the second compression spring is smaller than the stiffness coefficient of the third compression spring, and the stiffness coefficient of the third compression spring is smaller than the stiffness coefficient of the fourth compression spring.

4. The nursing auxiliary device for colonoscopy according to claim 3, characterized in that: The spring constant of the second compression spring is equal to the spring constant of the first compression spring.

5. The nursing auxiliary device for colonoscopy according to claim 3, characterized in that: The side wall of the protective tube is provided with an installation cavity, and the side wall of the protective tube is provided with a plurality of communication ports, which connect the installation cavity with the interior of the protective bag; the air supply pump is used to supply air to the installation cavity.

6. The nursing auxiliary device for colonoscopy according to claim 5, characterized in that: A plurality of fixing rings are fixedly installed in the installation cavity, and the plurality of fixing rings are evenly spaced along the axial direction of the protective tube. Each of the first fixing parts is fixedly connected to the fixing ring through one of the communicating ports, and each of the second fixing parts is fixedly connected to the fixing ring through one of the communicating ports.

7. The nursing auxiliary device for colonoscopy according to claim 1, characterized in that: The cross section of the protective bag along any diameter direction is trapezoidal, and the length of the end surface of the protective bag close to the protective tube in the axis direction of the protective tube is smaller than the length of the end surface of the protective bag away from the protective tube in the axis direction of the protective tube.

8. The colonoscopy nursing auxiliary device according to claim 1, characterized in that: A plurality of groups of positioning clips are arranged inside the delivery channel, and the positioning clips are arranged at intervals along the extension direction of the delivery channel; each group of the positioning clips is used to position the colonoscope.

9. The colonoscopy nursing auxiliary device according to claim 8, characterized in that: The positioning clamp includes a first clamp body and a second clamp body, the first clamp body and the second clamp body are both arc-shaped, the first clamp body is fixedly connected to the side wall of the delivery channel by a third telescopic rod, and the second clamp body is fixedly connected to the side wall of the delivery channel by a fourth telescopic rod, and a pushing spring is provided inside the third telescopic rod and the fourth telescopic rod. When the pushing spring is in its original length state, the first clamp body and the second clamp body are in abutment state. When the colonoscope is inserted into the delivery channel, the colonoscope can push the first clamp body and the second clamp body.

10. The nursing auxiliary device for colonoscopy according to claim 9, characterized in that: The first clamping body is rotatably provided with a plurality of first damping rollers, and the second clamping body is rotatably provided with a plurality of second damping rollers. The first damping rollers have resistance when rotating on the first clamping body, and the second damping rollers have resistance when rotating on the second clamping body.

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