Insertion part film sleeving tool and insertion part film sleeving assembly

Abstract

The invention discloses an insertion part film sleeving tool and an insertion part film sleeving assembly, and relates to the technical field of endoscopes. The insertion part film sleeving tool comprises a first pre-tightening wheel set and a second pre-tightening wheel set. A first pre-tightening wheel set with a first rotating wheel is arranged to limit an insertion part of an endoscope in a first gap defined by the first rotating wheel, a second pre-tightening wheel set with a second rotating wheel is arranged to limit a protective film mounting assembly in a second gap defined by the second rotating wheel, and the first rotating wheel rotates and conveys the insertion part. A protective film in the protective film mounting assembly is attached to the surface of an inserting part along with movement of the inserting part, the inserting part can drive the protective film to move to gradually sleeve the outer surface of the inserting part, and the protective film can help a second rotating wheel to overcome friction force of the second rotating wheel and drive the second rotating wheel to rotate in the moving process. And therefore, the protective film is in a tightened state in the whole film sleeving process, and the problem that the protective film forms wrinkles on the outer surface of the insertion part in a sleeving manner is solved.

Description

Technical Field

[0001] The invention relates to the field of endoscopes, and in particular to an insertion part sheath tool and an insertion part sheath assembly. Background Art

[0002] Endoscopes are one of the most widely used diagnostic and therapeutic tools in modern medicine, especially in gastrointestinal endoscopy, bronchoscopy, cystoscopy, etc., playing an irreplaceable role. However, since endoscopes are in direct contact with the digestive tract, respiratory tract and other parts of the patient's body, there is a high risk of infection. Therefore, they must be strictly cleaned and disinfected after each use to ensure patient safety. This disinfection process usually includes multiple steps such as mechanical cleaning, chemical disinfection, drying and sterilization. The cost of the equipment and consumables required is very high and the cycle is long. Therefore, for medical institutions, the cost of disinfection and reprocessing of endoscopes has become a cost burden that cannot be ignored, especially when the number of patients is large. This problem is particularly prominent.

[0003] In the prior art, the outer surface of the insertion part of the endoscope is covered with a film to prevent the endoscope from being contaminated during the operation. After the operation, the film layer on the outer surface of the insertion part of the endoscope can be directly replaced and reused, which can reduce the cost of disinfection and reprocessing of the endoscope. However, due to the low structural rigidity of the insertion part of the endoscope, the protective film is prone to form wrinkles on the surface of the insertion part of the endoscope during the covering process. The user needs to take time to smooth out the aforementioned wrinkles, which makes the entire covering operation very complicated. Therefore, how to quickly and conveniently cover the insertion part of the endoscope is a problem that needs to be solved urgently. Summary of the invention

[0004] The invention discloses an inserting part film covering tool and an inserting part film covering component, so as to at least partially improve the above technical problems.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: On the one hand, an embodiment of the present application provides an insertion part covering tool for assisting the covering of the insertion part of an endoscope, and the insertion part covering tool includes: a first pre-tightening wheel group and a second pre-tightening wheel group. The first pre-tightening wheel group includes at least two first rotating wheels, and a first gap for installing the insertion part is defined between the first rotating wheels, and the first rotating wheel is used to transport the insertion part located in the first gap. The second pre-tightening wheel group includes at least two second rotating wheels, and a second gap for installing a protective film installation assembly is defined between the second rotating wheels. The protective film installation assembly includes a base and a protective film, and the protective film is sleeved on the outer surface of the base. When the first rotating wheel transports the insertion part, the insertion part can gradually mate with the protective film and synchronously drive the protective film to move, and the protective film can drive the second rotating wheel to overcome its friction and rotate.

[0006] In one embodiment, the insertion portion covering tool further includes: a locking member, wherein the locking member is connected to the second rotating wheel and is used to selectively lock the second rotating wheel.

[0007] In one embodiment, the first preload wheel set and / or the second preload wheel set further include: a distance adjustment mechanism, the distance adjustment mechanism is connected to the first rotating wheel, and / or the distance adjustment mechanism is connected to the second rotating wheel, and the distance adjustment mechanism is used to adjust the size of the first gap and / or the second gap.

[0008] In one embodiment, the distance adjustment mechanism comprises: a slide rail and an elastic component, wherein the slide rail is used for the first rotating wheel and / or the second rotating wheel to slide, so as to adjust the size of the first gap and / or the second gap; The first rotating wheel is connected to the elastic component, and the elastic component is used to pre-fix the size of the first gap, and / or the second rotating wheel is connected to the elastic component, and the elastic component is used to pre-fix the size of the second gap.

[0009] In one embodiment, the elastic component includes: a slider, an elastic member and an adjusting member, the slider is slidably disposed on the slide rail and can be selectively locked or unlocked with the slide rail, the adjusting member is movably connected to the slider, the elastic member is connected between the first rotating wheel and the adjusting member, the adjusting member is used to adjust the distance between the end of the elastic member away from the slider and the slider, and / or the elastic member is connected between the second rotating wheel and the adjusting member, the adjusting member is used to adjust the distance between the end of the elastic member away from the slider and the slider.

[0010] In one embodiment, the insertion portion film tool also includes: a substrate, the substrate includes a first structural portion and a second structural portion, the first structural portion is connected to the second structural portion, and the plane where the first structural portion is located is perpendicular to the plane where the second structural portion is located, the first pre-tensioning wheel group and the second pre-tensioning wheel group are both arranged on the first structural portion, the second structural portion is provided with an avoidance hole, and the first gap, the second gap and the avoidance hole are arranged on the same straight line.

[0011] In one embodiment, the second structure part is further provided with an avoidance channel, the avoidance channel runs through the second structure part, one end of the avoidance channel is communicated with the avoidance hole, and the other end is communicated with an edge of the second structure part away from the first structure part, so as to allow the insertion part to pass through the avoidance channel along the radial direction of the insertion part to the outside of the substrate; And / or, the second structural part is used for detachably connecting the protective film installation assembly, and the second structural part is further provided with a positioning structure, the positioning structure is arranged at the periphery of the avoidance hole, and the positioning structure is used for selectively fixing the base to the second structural part; And / or, the second structural part has a first surface and a second surface, the first structural part is arranged on the first surface, and the second surface is provided with a shrinking mechanism, the shrinking mechanism is arranged on the outer periphery of the avoidance hole, and the shrinking mechanism is used to shrink the protective film sleeved on the insertion part to the surface of the insertion part.

[0012] In one embodiment, the second structural part has a first surface and a second surface, the first structural part is arranged on the first surface, and the second surface is provided with a shrinking mechanism, the shrinking mechanism is arranged on the outer periphery of the avoidance hole, and the shrinking mechanism is used to shrink the protective film sleeved on the insertion part to the surface of the insertion part; the shrinking mechanism includes: a plurality of elastic shrinking sheets arranged around the avoidance hole, the interior of the shrinking sheets forming a shrinking channel, and in the radial direction of the shrinking channel, the middle part of the shrinking sheet is convex inwardly to form a shrinking section with a minimum size less than or equal to the outer diameter of the insertion part at the shrinking channel.

[0013] In one embodiment, the top end of the shrink film sheet is connected in sequence through an elastic return member extending around the avoidance hole, and a broken crack is provided on the side of the elastic return member opposite to the avoidance channel. When the insertion part passes through the avoidance channel radially along the insertion part, the insertion part can force the elastic return member to expand at the broken crack to allow the insertion part to pass through.

[0014] On the other hand, an embodiment of the present application also provides an insertion part film covering assembly, including an insertion part film covering tool as described above and a protective film installation assembly, wherein the protective film installation assembly includes a base and a protective film, wherein the protective film is covered on the outer surface of the base, and the second rotating wheel clamps the inner surface of the protective film, and the protective film has a blocking end for shielding the front end surface of the insertion part, and the blocking end is located on the same straight line as the first gap and the second gap.

[0015] The technical solution adopted by the present invention can achieve the following beneficial effects: The insertion part film covering tool provided in the embodiment of the present application, by setting a first pre-tightening wheel group having a first rotating wheel to limit the insertion part of the endoscope within the first gap defined by the first rotating wheel, and setting a second pre-tightening wheel group having a second rotating wheel to limit the protective film installation assembly within the second gap defined by the second rotating wheel, when the insertion part is installed in the first gap, the first rotating wheel can start to rotate and transport the insertion part, and the protective film in the protective film installation assembly can be attached to the surface of the insertion part as the insertion part moves. In this process, the insertion part can drive the protective film to move and gradually cover the outer surface of the insertion part. During the movement, the protective film will help the second rotating wheel to overcome its friction and drive the second rotating wheel to rotate, so that the protective film is in a taut state during the entire film covering process, solving the problem of wrinkles on the protective film when it is covered on the outer surface of the insertion part. Applying the above-mentioned insertion part film covering tool to the insertion part film covering assembly can also solve the aforementioned problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0017] Figure 1 A schematic structural diagram of an insertion portion cover membrane assembly in one embodiment of the present application is shown; Figure 2 A structural schematic diagram of an insertion portion cover membrane assembly in one embodiment of the present application from another perspective is shown; Figure 3 A schematic structural diagram of an insertion portion sheathing tool in one embodiment of the present application is shown; Figure 4 for Figure 1 The enlarged view of point A in the middle; Figure 5 for Figure 2 The enlarged view of point B in the middle; Figure 6 for Figure 3 Enlarged view of point C in the middle; Figure 7 A schematic structural diagram of an insertion portion sheathing tool in one embodiment of the present application from another perspective is shown; Figure 8 for Figure 7 The enlarged view of point D in the middle; Fig. 9 A partial structural schematic diagram of a film shrinking mechanism in an inserting portion film assembly in an embodiment of the present application is shown; Fig.10A schematic diagram showing a sheathing process of another structure of an insertion sheathing tool in one embodiment of the present application.

[0018] In the figure: 1, inserting part film assembly; 10, inserting part film tool; 110, first preload wheel group; 111, first rotating wheel; 112, first gap; 120, second preload wheel group; 121, second rotating wheel; 122, second gap; 130, locking member; 140, distance adjustment mechanism; 141, slide rail; 142, elastic member; 1421, slider; 1422, elastic member; 1423, adjustment member; 150, substrate; 151, first structural part; 15 2. Second structural part; 1521. Avoidance hole; 1522. Avoidance channel; 1523. First surface; 1524. Second surface; 1525. Positioning structure; 160. Shrinking film mechanism; 161. Shrinking film sheet; 162. Shell; 163. Elastic reset member; 164. Fracture; 165. Shrinking film channel; 20. Protective film mounting assembly; 210. Base; 220. Protective film; 30. Endoscope; 310. Insertion part; 40. Table body; 50. Driver. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0021] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0022] The inventive concept of the present application is described here: Endoscopes are one of the most widely used diagnostic and therapeutic tools in modern medicine, especially in gastrointestinal endoscopy, bronchoscopy, cystoscopy, etc., playing an irreplaceable role. However, since endoscopes are in direct contact with the digestive tract, respiratory tract and other parts of the patient's body, there is a high risk of infection. Therefore, they must be strictly cleaned and disinfected after each use to ensure patient safety. This disinfection process usually includes multiple steps such as mechanical cleaning, chemical disinfection, drying and sterilization. The cost of the equipment and consumables required is very high and the cycle is long. Therefore, for medical institutions, the cost of disinfection and reprocessing of endoscopes has become a cost burden that cannot be ignored, especially when the number of patients is large. This problem is particularly prominent.

[0023] In the prior art, the outer surface of the insertion part of the endoscope is covered with a film to prevent the endoscope from being contaminated during the operation. After the operation is completed, the film layer on the outer surface of the insertion part of the endoscope can be directly replaced and reused, which can reduce the cost of disinfection and reprocessing of the endoscope. However, due to the low structural rigidity of the insertion part of the endoscope, the protective film is prone to form wrinkles on the surface of the insertion part of the endoscope during the covering process. Specifically, due to the low structural rigidity of the insertion part, when the insertion part is held for covering, the distal end of the insertion part is prone to bend and deform, which makes the covering operation difficult. If the distal end of the insertion part is held and the covering is applied little by little, it will take a lot of time. Also, since the distal end of the insertion part is prone to deformation, even after the covering is applied, the distal end of the insertion part will still bend and deform, resulting in wrinkles between the protective film and the insertion part. The user needs to spend time to smooth the aforementioned wrinkles, which makes the entire covering operation very complicated.

[0024] Based on this, the inventor provides an insertion part film covering tool and an insertion part film covering assembly, which confine the insertion part and the protective film respectively in a pre-tightened area to increase the structural rigidity of the area to be covered with film, and during the entire covering process, the protective film is tightened before it contacts the insertion part to ensure that the protective film can remain in a tightened state after contacting the insertion part to avoid the formation of wrinkles.

[0025] The following is combined with Figures 1 to 10 , an insertion portion covering film assembly 1 provided by the present application is described in detail through specific embodiments and application scenarios. The insertion portion covering film assembly 1 can be used to cover the insertion portion 310 of the endoscope 30, and the insertion portion covering film assembly 1 can include an insertion portion covering film tool 10 and a protective film installation assembly 20. The insertion portion covering film tool 10 and the protective film installation assembly 20 will be described in detail later.

[0026] Please also see Figure 1-Figure 3The insertion part film covering tool 10 provided in the embodiment of the present application may include: a first pre-tightening wheel group 110 and a second pre-tightening wheel group 120 . The first pre-tightening wheel group 110 can be used to pre-tighten the insertion part 310 , and the second pre-tightening wheel group 120 can be used to pre-tighten the protective film 220 .

[0027] For details, please also refer to Figure 1-Figure 4 The first pre-tightening wheel group 110 may include at least two first rotating wheels 111, and a first gap 112 for installing the inserting part 310 may be defined between the at least two first rotating wheels 111. It should be noted that the size of the first gap 112 may match the radial size of the inserting part 310, and the first gap 112 may be used to pre-tighten the inserting part 310, thereby facilitating the improvement of the rigidity of the inserting part 310 near the area to be coated. The first rotating wheel 111 may be used to transport the inserting part 310 in the first gap 112. That is, in this embodiment, the first rotating wheel 111 is a driving wheel, and when the inserting part 310 is installed in the first gap 112, the first rotating wheel 111 may rotate and drive the inserting part 310 to move.

[0028] The second preload wheel set 120 may include at least two second rotating wheels 121, and a second gap 122 for installing the protective film installation assembly 20 may be defined between the at least two second rotating wheels 121. For ease of description, the specific structure of the protective film installation assembly 20 is first introduced here.

[0029] Please continue reading Figure 1 The protective film installation assembly 20 may include a base 210 and a protective film 220. The protective film 220 may be sleeved on the outer surface of the base 210. The outer surface of the protective film 220 may be sleeved on the base 210. The inner surface of the protective film 220 may be clamped and pre-tightened by the second pre-tightening wheel set 120. The protective film 220 may be set to be in a state of being sealed and transparent at the far end. That is to say, in this embodiment, the protective film 220 may have a blocking end for shielding the front end surface of the insertion part 310. The blocking end may be the far end of the protective film. The blocking end may be located on the same straight line as the first gap 112 and the second gap 122, so that the smoothness of the film covering process can be improved.

[0030] In addition, in one embodiment, a glass slide may be provided on the distal surface of the protective film 220. The specific form of the glass slide is not limited in the embodiments of the present application. For example, in one embodiment, the glass slide may be made of a soft material and used to fill the gap between the distal end of the insertion portion 310 and the distal end of the protective film 220 to ensure that the protective film 220 is in a taut state after being fitted with the insertion portion 310. For example, in another embodiment, the glass slide may be made of a hard material, which can make the glass slide smoother, have good light transmittance, and can better fit with the insertion portion 310. The embodiments of the present application also do not describe the specific structure of the substrate 210. For example, in one embodiment, the substrate 210 may be set as a hollow cylindrical structure, which can facilitate the insertion portion 310 to pass through the interior of the substrate 210 during the film covering process.

[0031] As mentioned above, the second gap 122 can be used to pre-tighten the protective film 220 sleeved on the base, thereby facilitating the improvement of the structural strength of the protective film 220 sleeved on the base. In this embodiment, the size of the second gap 122 can match the radial size of the base plus twice the thickness of the protective film. When the first rotating wheel 111 is conveying the insertion part 310, the insertion part 310 can gradually mate with the protective film 220 and synchronously drive the protective film 220 to move, and the protective film 220 can drive the second rotating wheel 121 to overcome its friction and rotate. It can be understood that when the protective film drives the second rotating wheel 121 to overcome its friction, this friction can tighten the protective film 220.

[0032] For further information, please also refer to Figure 2 and Figure 5 In one embodiment, the insertion part sheathing tool 10 may further include a locking member 130, which may be connected to the second rotating wheel 121 and used to selectively lock the second rotating wheel 121. The embodiment of the present application does not limit the specific form and structure of the locking member 130, which may be set according to actual conditions. For example, in this embodiment, the locking member 130 may be set to selectively approach the second rotating wheel 121 to prevent the second rotating wheel 121 from rotating, or selectively move away from the second rotating wheel 121 to release the second rotating wheel 121. In this embodiment, the locking member 130 can be intermittently activated. When the locking member 130 is activated, the second rotating wheel 121 cannot rotate, and the protective film 220 cannot be driven by the first rotating wheel 111. At this time, the protective film 220 will gradually tighten. When the protective film 220 is tightened to a certain extent, the locking member 130 can be closed. At this time, the protective film 220 can be driven by the first rotating wheel 111, and the tightened protective film 220 can be more tightly fitted on the insertion part 310.

[0033] Also, please refer again to Figure 1-Figure 4In some embodiments, the first pre-tensioning wheel group 110 may further include: a distance adjustment mechanism 140, which may be connected to the first rotating wheel 111 and used to adjust the size of the first gap 112. In another embodiment, the second pre-tensioning wheel group 120 may also include a distance adjustment mechanism 140, in which case the distance adjustment mechanism 140 may be connected to the second rotating wheel 121 and used to adjust the size of the second gap 122. In some other embodiments, both the first pre-tensioning wheel group 110 and the second pre-tensioning wheel group 120 may be provided with a distance adjustment mechanism 140. For ease of description, the embodiment of the present application takes the example that both the first pre-tensioning wheel group 110 and the second pre-tensioning wheel group 120 are provided with a distance adjustment mechanism 140, and takes the distance adjustment mechanism 140 in the first pre-tensioning wheel group 110 as an example for description, and the distance adjustment mechanism 140 in the second pre-tensioning wheel group may refer to the distance adjustment mechanism 140 in the first pre-tensioning wheel group 110, and will not be described in detail here.

[0034] Please also see Figure 2 , Figure 3 , Figure 5 and Figure 6 In a specific embodiment, the distance adjustment mechanism 140 may include: a slide rail 141 and an elastic component 142. The slide rail 141 may be used for the first rotating wheel 111 to slide. The first rotating wheel 111 may change the size of the first gap 112 during the sliding process, so that the first pre-tightening wheel group 110 may be adapted to more insertion parts 310 of different sizes. The elastic component 142 may be used to fix the size of the first gap 112. That is, since the first rotating wheel 111 is slidably arranged on the slide rail 141, the size of the first gap 112 may be slightly deformed. The elastic component 142 may be used to pre-tighten the size of the first gap 112 and control the size of the first gap 112 to a smaller size. When the insertion part 310 is inserted into the first gap 112, the insertion part 310 may abut against the first rotating wheel 111 and slightly expand the first gap 112, so that the insertion part 310 may be better pre-tightened, thereby improving the rigidity of the insertion part 310, so as to facilitate the subsequent film operation.

[0035] In a more specific embodiment, the elastic component 142 may include: a slider 1421, an elastic member 1422 and an adjusting member 1423. The slider 1421 may be slidably disposed on the slide rail 141 and may be selectively locked or unlocked on the slide rail 141. The adjusting member 1423 may be movably connected to the slider 1421, the elastic member 1422 may be connected between the first rotating wheel 111 and the adjusting member 1423, and the adjusting member 1423 may be used to adjust the distance between the end of the elastic member 1422 away from the slider 1421 and the slider 1421.

[0036] It should be noted that the embodiment of the present application does not limit the connection method between the adjusting member 1423 and the elastic member 1422. For example, in one embodiment, the adjusting member 1423 can be threadedly connected to the slider 1421, and the adjusting member 1423 can pass through the slider 1421. One end of the adjusting member 1423 can abut against the elastic member 1422. As the adjusting member 1423 is screwed into the slider 1421, the elastic member 1422 can be gradually compressed, so that the pre-tightening force of the elastic component 142 on the insertion part 310 can be gradually increased. For insertion parts 310 of different sizes and specifications, the pre-tightening force of the elastic component 142 on the insertion part 310 can be changed by changing the screwing-in position of the adjusting member 1423 relative to the slider 1421. In this way, the applicability of the insertion part sheathing tool 10 can be improved.

[0037] Also, please refer again to Figure 1-Figure 3 In some embodiments, the insertion portion sheathing tool 10 may further include a substrate 150, the substrate 150 may include a first structural portion 151 and a second structural portion 152, the first structural portion 151 is connected to the second structural portion 152, and in a preferred embodiment, the plane where the first structural portion 151 is located may be perpendicular to the plane where the second structural portion 152 is located, the first pre-tightening wheel group 110 and the second pre-tightening wheel group 120 may both be arranged on the first structural portion 151, the second structural portion 152 may be provided with an avoidance hole 1521, and the first gap 112, the second gap 122 and the avoidance hole 1521 may be arranged on the same straight line.

[0038] That is to say, in this embodiment, the first pre-tensioning wheel group 110 and the second pre-tensioning wheel group 120 can be arranged on the same straight line, so that it is convenient for the insertion part 310 to drive the protective film 220 to move, and avoid the situation where the movement path of the protective film 220 driven by the insertion part 310 is bent, causing the protective film 220 to generate wrinkles on the surface of the insertion part 310.

[0039] The embodiments of the present application do not limit the specific structure and form of the first structural portion 151 and the second structural portion 152. For example, in one embodiment, the first structural portion 151 and the second structural portion 152 can both be configured as plate-like structures, and the first structural portion 151 and the second structural portion 152 can be configured as a detachable connection, which can facilitate the production and transportation of the insertion portion sheathing tool 10.

[0040] Further, in one embodiment, the second structure part 152 may be provided with an avoidance channel 1522, which may penetrate the second structure part 152, one end of the avoidance channel 1522 is communicated with the avoidance hole 1521, and the other end is communicated with the edge of the second structure part 152 away from the first structure part 151, and the avoidance channel 1522 may be used to allow the insertion part 310 to pass through the avoidance channel 1522 along the radial direction of the insertion part 310 to the outside of the substrate 150. In this embodiment, the provision of the avoidance channel 1522 may facilitate the removal of the insertion part 310 from the substrate 150 after the film covering operation is completed.

[0041] Also, see Figure 2 , Figure 7 ,and Figure 8 In some embodiments, the second structural portion 152 may have a first surface 1523 and a second surface 1524 that are opposite to each other. The second structural portion 152 may be used to detachably connect the protective film installation component 20. Specifically, the first surface 1523 may be used to detachably connect the protective film installation component 20. The second structural portion 152 may be provided with a positioning structure 1525. The positioning structure 1525 may be provided on the first surface 1523 and located at the periphery of the avoidance hole 1521. The positioning structure 1525 may be used to selectively fix the substrate 210 to the second structural portion 152, so that the protective film 220 can remain in a stable state during the film application process, thereby preventing the protective film 220 from shaking during the film application process, causing the protective film 220 to form wrinkles on the surface of the insertion portion 310.

[0042] The embodiments of the present application do not limit the specific form of the positioning structure 1525. For example, in one embodiment, the positioning structure 1525 can be a rough area formed on the surface of the second structural portion 152. When the base is set on the second structural portion 152, the friction force can be used to limit the position. Preferably, in this embodiment, the bottom surface of the base can be provided with a rough area that matches the aforementioned rough area. For another example, in one embodiment, the positioning structure 1525 can be a positioning groove or a positioning lever. The base can be set in the positioning groove, or the positioning lever can be moved to limit the movement of the base, etc., which can be set according to actual conditions.

[0043] Please also see Figure 1 , Figure 7 , Figure 8 and Fig. 9In one embodiment, the second surface 1524 may be provided with a shrink film mechanism 160, which may be arranged on the periphery of the avoidance hole 1521. The shrink film mechanism 160 may be used to shrink the protective film 220 sleeved on the insertion part 310 to the surface of the insertion part 310. For example, in one embodiment, the protective film 220 may be a heat shrink film, and the shrink film mechanism 160 may be a heating device. When the first rotating wheel 111 drives the insertion part 310 to move, the insertion part 310 will drive the protective film 220 to move together and sleeve the protective film 220 on the surface of the insertion part 310. When the insertion part 310 passes through the avoidance hole 1521, it will contact the shrink film mechanism 160. At this time, the shrink film mechanism 160 can shrink the protective film 220, which can further improve the fit between the protective film 220 and the insertion part 310 and prevent the protective film 220 from falling off the insertion part 310.

[0044] In a specific embodiment, the shrinking mechanism 160 may include a plurality of elastic shrinking sheets 161 arranged around the avoidance hole 1521, and the temporal portion of the shrinking sheet 161 forms a shrinking channel 165. In the radial direction of the shrinking channel 165, the middle portion of the shrinking sheet 161 is convex inwardly arranged to form a shrinking section whose minimum size is less than or equal to the outer diameter of the inserting portion 310 at the shrinking channel 165. In this embodiment, when the distal end of the inserting portion 310 contacts the shrinking sheet 161, the shrinking sheet 161 can be pushed open to increase the size of the aforementioned shrinking section. At this time, the shrinking section will squeeze the inserting portion 310, which can further ensure that the protective film 220 and the inserting portion 310 are fully structured and avoid the formation of a gap between the protective film 220 and the inserting portion 310.

[0045] In this embodiment, the shrink film sheet 161 can be set as a resistor sheet. When the distal end of the insertion part 310 expands the size of the shrinkage section, the shrink film sheet 161 can be deformed, thereby increasing the contact area between the shrink film sheet 161 and the insertion part 310, thereby improving the shrinking effect of the shrink film sheet 161 on the protective film 220.

[0046] Furthermore, in one embodiment, the top of the shrink film sheet 161 can be connected in sequence through an elastic reset member 163 extending around the avoidance hole 1521, and a broken slit 164 is provided on the side of the elastic reset member 163 opposite to the avoidance channel 1522, and the insertion portion 310 can pass through the avoidance channel 1522 along the radial direction of the insertion portion 310, and in this process, the elastic reset member 163 is forced to expand at the broken slit 164 to allow the insertion portion 310 to pass through, and the elastic reset member 163 can restore the deformation after the insertion portion 310 passes through the broken slit 164. That is to say, in this embodiment, the provision of the elastic reset member 163 can also play the effect of facilitating the removal of the insertion portion 310 from the substrate 150.

[0047] In addition, in some embodiments, the film shrinking mechanism 160 may further include an outer shell 162, which may be arranged on the periphery of the film shrinking sheet 161 and on the periphery of the elastic return member 163, for protecting the film shrinking sheet 161 and the elastic return member 163. It can be understood that a broken crack 164 is also provided on the outer shell 162, and the position of the broken crack 164 may correspond to the position of the broken crack 164 on the elastic return member 163.

[0048] See also Fig.10 In another embodiment, the insertion part film covering tool 10 may further include a table body 40 and a driver 50. The base plate 150 may be disposed on the table body 40. The table body 40 has a certain height from the ground, and the height may be greater than the height of the insertion part 310, so that it is convenient for the user to perform film covering operation on the table body 40. The driver 50 may be disposed below the table body 40. The driver 50 may be used to control the start or close of the locking member 130. The driver 50 is disposed below the table body 40 so that the user can control the opening and closing of the driver 50 with his feet during the film covering process, thereby improving the convenience of the film covering operation.

[0049] In summary, the insertion portion film covering tool 10 provided in the embodiment of the present application is provided with a first pre-tightening wheel group 110 having a first rotating wheel 111 to limit the insertion portion 310 of the endoscope 30 within the first gap 112 defined by the first rotating wheel 111, and a second pre-tightening wheel group 120 having a second rotating wheel 121 is provided to limit the protective film installation assembly 20 within the second gap 122 defined by the second rotating wheel 121. When the insertion portion 310 is installed in the first gap 112, the first rotating wheel 111 can start to rotate and convey the insertion portion 310. 0, the protective film 220 in the protective film installation assembly 20 can be attached to the surface of the insertion part 310 as the insertion part 310 moves. During this process, the insertion part 310 can drive the protective film 220 to move and gradually cover the outer surface of the insertion part 310. During the movement, the protective film 220 will help the second rotating wheel 121 overcome its friction and drive the second rotating wheel 121 to rotate, thereby making the protective film 220 in a taut state during the entire covering process, solving the problem of wrinkles on the outer surface of the protective film 220 when it is covered on the insertion part 310. Applying the above-mentioned insertion part covering tool 10 to the insertion part covering assembly 1 can also solve the above-mentioned problem.

[0050] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0051] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0052] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insertion portion sheathing tool (10), characterized in that: Used to assist the insertion portion (310) of an endoscope (30) in covering the insertion portion, the insertion portion covering tool (10) comprising: a first pre-tightening wheel assembly (110), the first pre-tightening wheel assembly (110) comprising at least two first rotating wheels (111), a first gap (112) for mounting the insert (310) being defined between the first rotating wheels (111), the first rotating wheels (111) being used to transport the insert (310) located in the first gap (112); and A second pre-tightening wheel group (120), wherein the second pre-tightening wheel group (120) comprises at least two second rotating wheels (121), wherein a second gap (122) for installing a protective film installation assembly (20) is defined between the second rotating wheels (121), wherein the protective film installation assembly (20) comprises a base body (210) and a protective film (220), wherein the protective film (220) is sleeved on the outer surface of the base body (210), and when the first rotating wheel (111) conveys the insertion part (310), the insertion part (310) can gradually mate with the protective film (220) and synchronously drive the protective film (220) to move, and the protective film (220) can drive the second rotating wheel (121) to overcome its friction force and rotate.

2. The insertion portion sheathing tool (10) according to claim 1, characterized in that: The insertion portion sheathing tool (10) further comprises: a locking member (130), wherein the locking member (130) is connected to the second rotating wheel (121) and is used to selectively lock the second rotating wheel (121).

3. The insertion portion sheathing tool (10) according to claim 1, characterized in that: The first pre-tensioning wheel set (110) and / or the second pre-tensioning wheel set (120) further comprises: a distance adjustment mechanism (140), wherein the distance adjustment mechanism (140) is connected to the first rotating wheel (111) and is used to adjust the size of the first gap (112); and / or the distance adjustment mechanism (140) is connected to the second rotating wheel (121) and is used to adjust the size of the second gap (122).

4. The insertion portion sheathing tool (10) according to claim 3, characterized in that: The distance adjustment mechanism (140) comprises: a slide rail (141) and an elastic component (142); the slide rail (141) is used for the first rotating wheel (111) and / or the second rotating wheel (121) to slide, so as to adjust the size of the first gap (112) and / or the second gap (122); The first rotating wheel (111) is connected to the elastic component (142), and the elastic component (142) is used to pre-fix the size of the first gap (112); and / or the second rotating wheel (121) is connected to the elastic component (142), and the elastic component (142) is used to pre-fix the size of the second gap (122).

5. The insertion portion sheathing tool (10) according to claim 4, characterized in that: The elastic component (142) comprises: a slider (1421), an elastic member (1422) and an adjusting member (1423); the slider (1421) is slidably disposed on the slide rail (141) and can be selectively locked or unlocked with the slide rail (141); the adjusting member (1423) is movably connected to the slider (1421); the elastic member (1422) is connected between the first rotating wheel (111) and the adjusting member (1423); the adjusting member (1423) is used to adjust the distance between the end of the elastic member (1422) away from the slider (1421) and the slider (1421); and / or the elastic member (1422) is connected between the second rotating wheel (121) and the adjusting member (1423); the adjusting member (1423) is used to adjust the distance between the end of the elastic member (1422) away from the slider (1421) and the slider (1421).

6. The insertion portion sheathing tool (10) according to any one of claims 1 to 5, characterized in that: The insertion portion sheathing tool (10) further comprises: a base plate (150), wherein the base plate (150) comprises a first structural portion (151) and a second structural portion (152), wherein the first structural portion (151) is connected to the second structural portion (152), and a plane where the first structural portion (151) is located is perpendicular to a plane where the second structural portion (152) is located, wherein the first pre-tightening wheel assembly (110) and the second pre-tightening wheel assembly (120) are both arranged on the first structural portion (151), and the second structural portion (152) is provided with an avoidance hole (1521), and the first gap (112), the second gap (122) and the avoidance hole (1521) are arranged on the same straight line.

7. The insertion portion sheathing tool (10) according to claim 6, characterized in that: The second structural portion (152) is further provided with an avoidance channel (1522), the avoidance channel (1522) passing through the second structural portion (152), one end of the avoidance channel (1522) being in communication with the avoidance hole (1521), and the other end of the avoidance channel (1522) being in communication with an edge of the second structural portion (152) away from the first structural portion (151), so as to allow the insertion portion (310) to pass through the avoidance channel (1522) along the radial direction of the insertion portion (310) to the outside of the substrate (150); And / or, the second structural portion (152) is used for detachably connecting the protective film installation assembly (20), and the second structural portion (152) is further provided with a positioning structure (1525), the positioning structure (1525) is provided on the outer periphery of the avoidance hole (1521), and the positioning structure (1525) is used for selectively fixing the base (210) to the second structural portion (152); And / or, the second structural part (152) has a first surface (1523) and a second surface (1524), the first structural part (151) is arranged on the first surface (1523), and the second surface (1524) is provided with a shrinking mechanism (160), and the shrinking mechanism (160) is arranged on the outer periphery of the avoidance hole (1521), and the shrinking mechanism (160) is used to shrink the protective film (220) sleeved on the insertion part (310) to the surface of the insertion part (310).

8. The insertion portion sheathing tool (10) according to claim 6, characterized in that: The second structural part (152) has a first surface (1523) and a second surface (1524); the first structural part (151) is arranged on the first surface (1523); the second surface (1524) is provided with a shrinking film mechanism (160); the shrinking film mechanism (160) is arranged on the outer periphery of the avoidance hole (1521); the shrinking film mechanism (160) is used to shrink the protective film (220) sleeved on the insertion part (310) to the surface of the insertion part (310); The shrinking film mechanism (160) comprises: a plurality of elastic shrinking film sheets (161) arranged around the avoidance hole (1521); the interior of the shrinking film sheets (161) forms a shrinking film channel (165); in the radial direction of the shrinking film channel (165), the middle portion of the shrinking film sheet (161) is convex inwardly to form a shrinking section at the shrinking film channel (165) whose minimum size is less than or equal to the outer diameter of the insertion portion (310).

9. The insertion portion sheathing tool (10) according to claim 8, characterized in that: The top end of the shrink film sheet (161) is connected in sequence via an elastic return piece (163) extending around the avoidance hole (1521); a fracture (164) is provided on the side of the elastic return piece (163) opposite to the avoidance channel (1522); when the insertion part (310) passes through the avoidance channel (1522) radially along the insertion part (310), the insertion part (310) can force the elastic return piece (163) to expand at the fracture (164) to allow the insertion part (310) to pass through.

10. An insertion portion membrane assembly (1), characterized in that: It comprises an insertion part film covering tool (10) and a protective film installation assembly (20) as described in any one of claims 1 to 9, wherein the protective film installation assembly (20) comprises a base (210) and a protective film (220), wherein the protective film (220) is covered on the outer surface of the base (210), and the second rotating wheel (121) clamps the inner surface of the protective film (220), and the protective film (220) has a blocking end for shielding the front end surface of the insertion part (310), and the blocking end is located on the same straight line as the first gap (112) and the second gap (122).

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