Endoscope cable protective cover and endoscope

Abstract

The present application relates to the technical field of endoscopes, and the present application discloses an endoscope cable protective sleeve and an endoscope, wherein the endoscope cable protective sleeve comprises: a center line a; a first ring; a second ring, the second ring and the first ring are arranged opposite to each other along the center line a; a cylindrical film, the cylindrical film comprises a folded section folded in a manner of compressing its axial length, and an unfolded section connected to the proximal end of the folded section, the folded section is sleeved on the outer peripheral wall of the second ring, the proximal end of the unfolded section is connected to the first ring, and the distal end of the folded section is connected to the second ring. In an embodiment of the present application, by arranging the cylindrical film on the outer peripheral wall of the second ring, the cylindrical film can be separated from the cable by the second ring, so as to avoid partial accumulation of the cylindrical film on the cable during the unfolding process, or damage due to force, thereby ensuring effective protection of the cable by the endoscope cable protective sleeve.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and in particular to an endoscope cable protective cover and an endoscope. Background Art

[0002] The endoscope handle is connected to the host through a cable to establish a passage.

[0003] Since the endoscope needs to enter the patient's body to observe the lesion, the endoscope cable does not directly enter the human body during this process, but it will also come into contact with pollution sources (such as blood, body fluids, etc.). Therefore, for cables that need to be reused, they need to be cleaned and disinfected after use.

[0004] In the related art, in order to reduce the cost of cleaning and disinfection, a protective cover is put on the cable when using the endoscope to prevent pollution sources from contaminating the cable.

[0005] However, in actual operation, the protective cover needs to be stretched and unfolded for use. During the stretching process, part of the protective cover will be stacked and produce a large number of wrinkles, making it impossible to fully unfold, or even causing the protective cover to be damaged, making it difficult for the protective cover to provide good protection for the cable. Summary of the invention

[0006] The present application provides an endoscope cable protective cover and an endoscope, which can at least be used to solve the problem that the cylindrical film of the endoscope cable protective cover is easily damaged during the stretching and unfolding process.

[0007] In a first aspect, an embodiment of the present application provides an endoscope cable protective cover, comprising: a center line a; a first ring; a second ring, the second ring and the first ring being arranged opposite to each other along the center line a; a cylindrical film, the cylindrical film comprising a folded section folded in a manner of compressing its axial length and an unfolded section connected to the proximal end of the folded section, the folded section being sleeved on the outer peripheral wall of the second ring, the proximal end of the unfolded section being connected to the first ring, and the distal end of the folded section being connected to the second ring.

[0008] In some embodiments of the present application, the endoscope cable protective cover also includes a raised portion, which is circumferentially arranged on the outer peripheral wall of the second ring, and the raised portion is located between the proximal end and the distal end of the expansion segment. The raised portion is used to contact the inner wall of the expansion segment, and the distance between the vertex of the raised portion and the center line a is greater than the distance between the connection point between the expansion segment and the first ring and the center line a, and the connection point between the expansion segment and the first ring is higher than the intersection of the first ring and the extension line of the line connecting the vertex of the raised portion and the proximal end point of the second ring.

[0009] In some embodiments of the present application, the outer peripheral wall of the protrusion includes an outer arc surface extending from the distal end to the proximal end along the center line a.

[0010] In some embodiments of the present application, protruding particles are provided on the outer peripheral wall of the protrusion, and the protruding particles are in contact with the inner peripheral wall of the expansion section.

[0011] In some embodiments of the present application, the proximal end of the expanded segment is sealed against the end wall of the distal end of the first ring, and the connection point between the expanded segment and the first ring is radially spaced from the inner circumferential wall of the first ring; and / or the distal end of the folded segment is sealed against the end wall of the distal end of the second ring, and the connection point between the folded segment and the second ring is radially spaced from the inner circumferential wall of the second ring.

[0012] In some embodiments of the present application, a weak connection portion is connected between the first ring and the second ring, and the weak connection portion itself or the connection point with the first ring and / or the second ring can be destroyed and broken under external force.

[0013] In some embodiments of the present application, the inner circumferential wall of the first ring is provided with a cylindrical protective film extending axially, the proximal end of the protective film is connected to the first ring, and the distal end of the protective film can be brokenly connected to the distal end of the first ring or the second ring; the inner circumferential wall of the protective film is at least partially provided with an adhesive layer for bonding cables, and the surface of the adhesive layer is provided with an anti-sticking film.

[0014] In some embodiments of the present application, the proximal end of the protective film is connected to the end wall or the outer peripheral wall of the proximal end of the first ring, and a continuously distributed adhesive layer is provided on at least one axial side of the inner peripheral wall of the protective film.

[0015] In some embodiments of the present application, the second collar further includes a housing cavity, the housing cavity is used to accommodate the folded segment, the housing cavity has a linear opening arranged along the circumferential direction, and the proximal end of the unfolded segment is connected to the first collar through the opening.

[0016] In a second aspect, an embodiment of the present application provides an endoscope, comprising an operating handle, a cable and an insertion portion, wherein the operating handle is provided with a cable interface, the cable interface is used to dock with the cable, and the cable is provided with an endoscope cable protective cover.

[0017] Beneficial effects of the embodiments of the present application:

[0018] In an embodiment of the present application, the cylindrical film is compressed along its axial length to obtain a folded section and an unfolded section connected to the proximal end of the folded section. The folded section is sleeved on the outer peripheral wall of the second ring, and the proximal end of the unfolded end is connected to the first ring, so that the second ring can drive the cylindrical film to gradually unfold to gradually cover the cable to be protected.

[0019] When the first ring remains stationary and the second ring moves toward the far end, the folded section will be gradually unfolded to form an unfolded section, and gradually laid on the cable surface to protect it. It can be seen that in this process, the laying process of the unfolded section and the moving process of the second ring are gradual and have good synchronization.

[0020] Since the folded section of the tubular film is always sleeved on the outer peripheral wall of the second ring, the second ring acts as a barrier between the folded section and the cable. During the gradual unfolding process, the second ring can prevent the folded section from contacting the cable, thus avoiding the problem that the tubular film is partially stacked on the cable and is difficult to pull apart. At the same time, since the second ring itself has a certain height relative to the cable, during the stretching process, a triangular cavity is formed between the cable surface, the unfolded section located between the cable surface and the proximal end wall of the second ring, and the proximal end wall of the second ring. As the second ring moves toward the distal end, the cavity always exists. That is, during the pulling process, the part of the tubular film that is subjected to tension is always isolated from the cable surface, and the unfolded section can contact the cable surface after being fully stretched, thus avoiding the tubular film from contacting the cable surface when it is not fully unfolded, so that the pulling situation between the two due to the interaction of forces is avoided, thereby avoiding the problem of damage to the tubular film during the stretching and unfolding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0022] In the attached picture:

[0023] Figure 1 A schematic diagram of the structure of an endoscope disclosed in some embodiments of the present application;

[0024] Figure 2 A partial enlarged view of the A part disclosed in some embodiments of the present application;

[0025] Figure 3 A schematic diagram of the cross-sectional structure of an endoscope cable protective cover disclosed in some embodiments of the present application;

[0026] Figure 4 A schematic diagram of a cross-sectional structure of an endoscope cable protective cover including a protrusion disclosed in some embodiments of the present application;

[0027] Figure 5 A partial enlarged view of the B portion disclosed in some embodiments of the present application;

[0028] Figure 6 A schematic cross-sectional structure diagram of an endoscope cable protective cover including an accommodating cavity disclosed in some embodiments of the present application;

[0029] Figure 7 A partial enlarged view of the C portion disclosed in some embodiments of the present application;

[0030] Figure 8 It is a schematic diagram of the structure in which the endoscope cable protective sleeve disclosed in some embodiments of the present application is sleeved on the cable;

[0031] Fig. 9 This is a partial enlarged view of the D portion disclosed in some embodiments of the present application.

[0032] Description of reference numerals:

[0033] 100-endoscope cable protection cover, 200-operating handle, 300-cable, 400-insertion part,

[0034] 110-first ring, 120-second ring, 130-cylindrical film, 140-weak connection part, 150-protective film,

[0035] 121 - raised portion, 1211 - raised particles, 122 - accommodating cavity, 1221 - linear opening, 131 - folded section, 132 - unfolded section, 151 - adhesive layer. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0037] It should be noted that, in each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories 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".

[0038] In order to facilitate understanding of the embodiments of the present application, the relevant technologies are first introduced in conjunction with application scenarios.

[0039] During the use of the endoscope, the operating handle 200 needs to be connected to the host through the cable 300. Since the cable 300 is exposed to the air, it may be contaminated with pollutants (such as blood, etc.) and needs to be cleaned and disinfected. In order to reduce the cost of cleaning and disinfecting the cable 300, a protective cover can be provided on the cable 300 to protect it.

[0040] In the related art, the protective cover is mainly a folded plastic film, which is pulled open and placed on the cable 300 to protect it when in use. However, in this process, problems such as damage of the plastic film often occur. The inventors found that the main reason for the damage of the plastic film is that there is friction or electrostatic adsorption between the plastic film and the surface of the cable 300, which causes the plastic film to adhere to the surface of the cable 300 and is difficult to separate. If the plastic film is pulled to move relative to the surface of the cable 300 to unfold, the plastic film is easily damaged or torn by the friction of the surface of the cable 300, resulting in the protective cover failing to provide good protection for the cable 300.

[0041] In view of this, the embodiment of the present application provides an endoscope cable 300 protective cover and an endoscope, as follows Figure 1-Figure 9 , describe in detail the technical solutions disclosed in each embodiment of this application.

[0042] In an embodiment of the present application, the protective cover of the endoscope cable 300 is used to protect the surface of the cable 300 in order to prevent contaminants from adhering to the surface of the cable 300, so that the cleaning and disinfection of the cable 300 can be avoided in the subsequent cleaning and disinfection process.

[0043] The protective sleeve of the endoscope cable 300 includes a cylindrical film 130 and a first ring 110 and a second ring 120 respectively connected to and supporting the proximal end and the distal end of the cylindrical film 130. The first ring 110 and the second ring 120 have holes in their centers for passing the cable 300, and the channel in the center of the cylindrical film 130 communicates with the holes of the first ring 110 and the second ring 120, so that the first ring 110 and the second ring 120 can be sleeved on the cable 300 together with the cylindrical film 130.

[0044] like Figure 3 As shown, the first ring 110 and the second ring 120 are arranged opposite to each other along the center line a, so that the proximal end and the distal end of the cylindrical film 130 are arranged in sequence along the center line a. The center line a may pass through the axis of the first ring 110 and the second ring 120 at the same time, or may only pass through the axis of the first ring 110 or the second ring 120, or neither of the first ring 110 and the second ring 120.

[0045] In order to provide comprehensive protection for the cable 300, the total length (length after being stretched and smoothed) of the cylindrical film 130 cannot be shorter than the length of the cable 300. In order to facilitate the sleeve of the cylindrical film 130 on the cable 300, the cylindrical film 130 is folded in a manner of compressing its axial length, forming a folded section 131 and an unfolded section 132 connected to the proximal end of the folded section 131.

[0046] The second ring 120 has a certain length extending in the axial direction, which is generally greater than the axial length of the folded section 131 , so that the folded section 131 is sleeved on the outer peripheral wall of the second ring 120 and supported by the entire section to avoid collapsing to the surface of the cable 300 .

[0047] The proximal end of the unfolded section 132 is connected to the first ring 110 , and the distal end of the folded section 131 is connected to the second ring 120 , so that the first ring 110 , the tubular film 130 and the second ring 120 form a shorter tubular structure, which can be easily put on the cable 300 .

[0048] like Figure 2 , 3 As shown in FIG. 4 , the protective cover of the endoscope cable 300 is sheathed onto the cable 300 from one end of the cable 300 in this form. When the cylindrical film 130 needs to be unfolded, the first ring 110 is kept stationary, and the second ring 120 is controlled to move away from the first ring 110 toward the distal end.

[0049] Since the proximal end of the unfolded section 132 of the tubular film 130 is connected to the first ring 110, and the distal end of the folded section 131 is connected to the second ring 120, when the first ring 110 is stationary and the second ring 120 moves distally away from the first ring 110, the folded section 131 located on the outer peripheral wall of the second ring 120 is driven by the second ring 120 to extend distally, and the folded portion is unfolded to form the unfolded section 132. As the second ring 120 moves, the unfolded section 132 sequentially covers the cable 300 to protect the cable 300.

[0050] In some embodiments, there are many ways to compress the tubular film 130 to reduce its axial length. For example, the tubular film 130 can be compressed by Figure 3 and Figure 4 The folded section 131 of the tubular film 130 is folded in the axial direction in a zigzag shape, and its axial length is compressed. For another example, the folded section 131 of the tubular film 130 is rolled up (for example, a roll of paper) with the midline of the folded section 131 of the tubular film 130 in the axial direction as the axis, and its axial length is compressed in this folding manner.

[0051] In some embodiments, there are various ways to connect the proximal end of the expanded segment 132 to the first collar 110 and the distal end of the folded segment 131 to the second collar 120, such as gluing, welding, or fusion. Specifically, the proximal end of the expanded segment 132 can be connected to the end wall or the outer peripheral wall of the first collar 110, and the distal end of the folded segment 131 can also be connected to the distal end wall or the outer peripheral wall of the second collar 120.

[0052] In the embodiment of the present application, the folded section 131 of the cylindrical film 130 is arranged on the outer peripheral wall of the second ring 120, and the contact between the folded section 131 and the surface of the cable 300 is isolated by the second ring 120, so as to avoid the folded section 131 from accumulating on the surface of the cable 300 and failing to unfold smoothly. Furthermore, since the second ring 120 itself has a certain height relative to the cable 300, during the stretching process, a triangular cavity is formed between the surface of the cable 300, the unfolded section 132 located between the surface of the cable 300 and the proximal end wall of the second ring 120, and the proximal end wall of the second ring 120, and the cavity always exists as the second ring 120 moves toward the distal end. That is, during the pulling process, the part of the cylindrical film 130 that is subjected to tension is always isolated from the surface of the cable 300 by the second ring 120, so as to avoid the generation of friction or electrostatic adsorption and other resistance between the cylindrical film 130 and the surface of the cable 300, thereby preventing the cylindrical film 130 from being damaged due to resistance during the stretching and unfolding process.

[0053] In some embodiments, Figure 4 , 5 As shown, the protective sleeve of the endoscope cable 300 is provided with a protrusion 121 on the outer peripheral wall of the second ring 120. The protrusion 121 is provided along the circumferential direction on the outer peripheral wall of the second ring 120, and is located between the proximal end and the distal end of the expansion section 132, and is used to contact the inner wall of the expansion section 132, so that the area of ​​the expansion section 132 passing through the protrusion 121 is always lifted away from the outer peripheral wall of the second ring 120 by a distance. On the protrusion 121, the position farthest from the axis of the second ring 120 in the radial direction is its vertex, and the distance between the vertex of the protrusion 121 and the center line a is greater than the distance between the connection point of the expansion section 132 and the first ring 110 and the center line a, and the connection point of the expansion section 132 and the first ring 110 is higher than the intersection of the extended line connecting the vertex of the protrusion 121 and the proximal end point of the second ring 120 and the first ring 110.

[0054] In some embodiments, the protrusion 121 extends continuously along the circumferential direction on the outer peripheral wall of the second ring 120 to form a ring shape on the outer peripheral wall of the second ring 120 .

[0055] In other embodiments, the protrusions 121 are distributed and extended along the circumferential direction on the outer peripheral wall of the second collar 120 to form a plurality of protrusions spaced apart from each other on the outer peripheral wall of the second collar 120. All the protrusions may be arranged in sequence along the circumferential direction, or all the protrusions may include both a plurality of protrusions arranged in sequence along the circumferential direction and a plurality of protrusions arranged in sequence along the axial direction, and two adjacent protrusions arranged in sequence in the axial direction may be axially aligned or axially misaligned. The specific arrangement of the protrusions 121 is not limited herein.

[0056] like Figure 4 As shown, the distance between the vertex of the protruding portion 121 and the center line a is greater than the distance between the connection point of the unfolding section 132 and the first ring 110 and the center line a. At this time, when the folding section 131 passes through the protruding portion 121, it is lifted. At the same time, the connection point of the unfolding section 132 and the first ring 110 is higher than the intersection of the extension line of the line connecting the vertex of the protruding portion 121 and the proximal end point of the second ring 120 and the first ring 110, so that the protruding portion 121, the unfolding section 132, and the extension line of the straight line where the connection point of the unfolding section 132 and the first ring 110 are located form a triangular area. When the cylindrical film 130 is unfolded by tension, the unfolding section 132 is fully supported, so that the unfolding section 132 is subjected to force in both the vertical direction and the horizontal direction, so that the unfolding section 132 is pulled apart more smoothly, avoiding the problem of stacking in the horizontal direction.

[0057] In some embodiments, the cross section of the protrusion 121 may be in various shapes, such as a trapezoid, a semicircle, etc. Specifically, the outer peripheral wall of the protrusion 121 may include an outer arc surface extending from the distal end to the proximal end along the center line a, that is, the protrusion 121, when circumferentially surrounded, will become a convex ring with an arc surface on the outer surface.

[0058] By setting the outer peripheral wall of the protrusion 121 as an outer arc surface extending from the distal end to the proximal end along the center line a, the smoothness of the surface of the protrusion 121 can be increased. When the inner wall of the expansion section 132 contacts the protrusion 121, it can be smoothly expanded to avoid the edges and corners of the surface of the protrusion 121 scratching the expansion section 132, causing the expansion section 132 to be subjected to unnecessary external force and increasing its risk of damage.

[0059] In some embodiments, Figure 4 As shown, protruding particles 1211 are arranged on the outer peripheral wall of the protruding portion 121 , and the protruding particles 1211 are in contact with the inner peripheral wall of the unfolding section 132 .

[0060] The protrusion particles 1211 refer to particle-type protrusions on a smooth surface.

[0061] For example, the cross section of the protruding particle 1211 can be in various shapes, such as semicircle, trapezoid, etc.

[0062] In some embodiments, the protruding particles 1211 can be arranged on the protruding portion 121 in a variety of distribution modes. For example, the protruding particles 1211 can be evenly distributed in a dotted manner on the outer peripheral wall of the protruding portion 121. For example, the protruding particles 1211 can be distributed only on the outer peripheral wall of the top of the protruding portion 121, and contact the inner peripheral wall of the expansion section 132.

[0063] By setting the protruding particles 1211 to contact the inner wall of the unfolding section 132, the contact area between the inner wall of the unfolding section 132 and the raised portion 121 can be reduced, thereby reducing the friction resistance therebetween, further ensuring that the unfolding section 132 is smoothly unfolded without being damaged by resistance.

[0064] In some embodiments, the proximal end of the expansion section 132 is sealed with the end wall of the distal end of the first collar 110 to ensure that contaminants do not enter the interior of the protective sleeve through the gap between the proximal end of the expansion section 132 and the distal end wall of the first collar 110. Further, the connection point between the expansion section 132 and the first collar 110 is radially spaced from the inner circumferential wall of the first collar 110. Since the first collar 110 will move relative to the cable 300 during the disassembly process of the protective sleeve of the endoscope cable 300, if the connection point between the expansion section 132 and the first collar 110 is in full contact with the inner circumferential wall of the first collar 110, it is inevitable that the connection part will be rubbed during the relative movement, resulting in the risk of damage. Therefore, it is necessary to seal the connection part. Specifically, the radial spacing should be greater than 0.

[0065] At the same time, similar to the connection between the first collar 110 and the expansion section 132, the distal end of the folded section 131 is butted and sealed with the distal end wall of the second collar 120, and the connection point between the folded section 131 and the second collar 120 is radially spaced from the inner circumferential wall of the second collar 120. Correspondingly, the radial spacing should also be greater than 0.

[0066] In this embodiment, when the second ring 120 moves with the first ring 110 in the axial direction, there is a radial spacing between the connection point between the expansion section 132 and the first ring 110 and / or the connection point between the folded section 131 and the second ring 120 and the surface of the cable 300, and the radial spacing is greater than 0, that is, the connection point between the expansion section 132 and the first ring 110 and / or the connection point between the folded section 131 and the second ring 120 will not contact the surface of the cable 300, thereby avoiding repeated friction at the connection point during the stretching friction process, resulting in damage or breakage of the cylindrical film 130 at the connection point. The spacing between the connection point and the surface of the cable 300 can further isolate the contact between the cylindrical film 130 and the surface of the cable 300, reducing the risk of damage to the cylindrical film 130, so that the protective cover of the endoscope cable 300 can provide more complete protection for the surface of the cable 300.

[0067] In some embodiments, Figure 3 As shown, a weak connection portion 140 is connected between the first ring 110 and the second ring 120. The first ring 110 and the second ring 120 are connected by the weak connection portion 140, so that the relative position of the first ring 110 and the second ring 120 can be fixed to prevent them from being misaligned due to external forces. Furthermore, during the storage and transportation of the protective cover of the endoscope cable 300, the weak connection portion 140 can also ensure that the first ring 110 and the second ring 120 are connected as a movable and removable whole, which is convenient for use and storage.

[0068] The weak connection part 140 itself or the connection point with the first ring 110 and / or the second ring 120 can be broken and broken under external force. The weak connection part 140 is a connection part with low strength and is easily broken under the action of external force. After being broken, it no longer plays a connecting role. In the specific implementation process, the weak connection part 140 can be glue with weak bonding force, or the weak connection part 140 can be a knot, a paper strip, a film, etc. that is easy to break. When the user needs to pull the second ring 120 to move away from the first ring 110, the weak connection part 140 can be broken by force, so that the first ring 110 and the second ring 120 move relative to each other.

[0069] By providing the weak connection part 140, the first ring 110 and the second ring 120, as well as the tubular film 130 located between the first ring 110 and the second ring 120, can be pulled together, so that the first ring 110, the second ring 120 and the tubular film 130 can be kept in a fixed position to prevent them from being scattered during storage and transportation. At the same time, when it is necessary to pull the first ring 110 and the second ring 120 apart, it is only necessary to forcefully break the weak connection part 140, which is convenient and simple to use.

[0070] In some embodiments, after the endoscope cable 300 protective cover is used, the first ring 110 needs to be pulled toward the proximal end to remove the endoscope protective cover. During this process, the pollutants on the outside of the endoscope protective cover may fall onto the cable during the movement of the first ring 110. Therefore, a cylindrical protective film 150 extending along the axial direction may be provided on the inner circumferential wall of the first ring 110. The protective film 150 is sleeved on the cable 300 corresponding to the first ring 110. When the first ring 110 is moved toward the distal end, the protective film 150 can be turned outward to cover the surface of the cable 300, preventing the pollutants on the first ring 110 from falling onto the cable 300.

[0071] The proximal end of the protective film 150 is connected to the first ring 110, and the distal end of the protective film 150 is disconnectably connected to the distal end of the first ring 110 or the second ring 120. The protective film 150 can be connected to the first ring 110 and / or the second ring 120 by bonding, welding, and other methods. When the protective film is connected to the second ring 120, the protective film 150 can also play a role similar to the weak connection part 140, connecting the first ring 110 and the second ring 120, and when the first ring 110 and the second ring 120 move relative to each other, the connection between the protective film 150 and the second ring 120 can be disconnected by force.

[0072] Since the protective film 150 itself will shift its position along with the movement of the first ring 110, in order to further fix the protective film 150 on the surface of the cable 300, the inner wall of the protective film 150 is at least partially provided with an adhesive layer 151 for bonding the cable 300. The adhesive layer 151 can be used to bond the surface of the cable 300. At this time, the protective film 150 is at least partially adhered to the cable 300. When the first ring 110 moves, the protective film 150 is subjected to the adhesive force provided by the adhesive layer 151 and will not move along with the movement of the first ring 110. If the first ring 110 is pulled hard, the corresponding protective film 150 will turn outward, and, under the action of the adhesive force, the protective film 150 will be laid on the surface of the cable 300 after being pulled flat.

[0073] Since the adhesive layer 151 only needs to be effective when the protective film 150 of the endoscope cable 300 is used, in order to prevent the adhesive layer 151 from sticking in advance, its surface needs to be treated with an anti-sticking treatment. For example, an anti-sticking film can be attached to the surface of the adhesive layer 151. When the protective film 150 needs to be used, the anti-sticking film can be torn off, and the first ring 110 can be pressed hard to stick the protective cover to the cable 300.

[0074] Specifically, Figure 8 , 9 As shown, the anti-adhesive film is torn off, and the adhesive layer 151 is bonded to the cable 300. At this time, the first ring 110 or the second ring 120 is moved, and the connection between the protective film 150 and the first ring 110 or the second ring 120 is broken. When the protective cover needs to be removed, the first ring 110 is moved toward the proximal end. At this time, the first ring 110 will drive the protective film 150 to move toward the proximal end. Since the proximal end of the protective film 150 is connected to the first ring 110, and the inner peripheral wall of the protective film 150 is bonded to the cable 300 through the adhesive layer 151, the protective film 150 is turned outward by the combined action of the tensile force and the bonding force, and covers the cable 300 located on the moving path of the first ring 110, thereby protecting the surface of the cable 300.

[0075] For example, the adhesive layer 151 can be disposed in a variety of ways. For example, the adhesive layer 151 can be disposed continuously along the circumferential direction on the inner circumferential wall of the protective film 150. For another example, the adhesive layer 151 can be disposed at intervals in the axial direction, which is not limited here.

[0076] like Figure 8 , 9 As shown, by providing the protective film 150, when the protective cover of the endoscope cable 300 is removed, the first ring 110 is moved toward the distal end, and the protective film 150 is turned out to cover the cable 300 located on the moving path of the first ring 110. This can prevent pollutants on the outside of the first ring 110 from falling onto the cable 300 due to shaking when the protective cover of the endoscope cable 300 is removed, thereby contaminating the cable 300. This further ensures effective protection of the cable 300 in the entire process of using and removing the protective cover of the endoscope cable 300.

[0077] In some embodiments, the proximal end of the protective film 150 is connected to the end wall or the peripheral wall of the proximal end of the first ring 110. At this time, the protective film 150 extends axially to the proximal end of the first ring 110, and when the first ring 110 moves toward the distal end, the protective film 150 can completely cover the moving path of the first ring 110, further increasing the protection range of the protective film 150 to the cable 300.

[0078] Furthermore, since the protective film 150 is disposed between the first ring 110 and the cable 300, when the first ring 110 is pulled, the protective film 150 may move with the first ring 110, and since there is an adhesive layer 151 on part of the protective film 150, the protective film 150 may be stacked in the axial direction between the bonding position and the moving position of the first ring 110, and it cannot be guaranteed that it can be spread smoothly in the axial direction. Therefore, a continuously distributed adhesive layer 151 may be provided in the axial direction on at least one side of the inner circumferential wall of the protective film 150, that is, at any position in the axial direction of the inner circumferential wall of the protective film 150, there is an adhesive force to pull the protective film 150. Only when the first ring 110 is pulled hard, the bonding between the adhesive layer 151 and the cable 300 is broken. At this time, as shown in FIG. Fig. 9 As shown, the protective film 150 is flattened and turned outward point by point, covering the cable 300 to protect it.

[0079] Exemplarily, the adhesive layer 151 is continuous in the axial direction, which means that there is at least one point on the inner peripheral wall at any position in the axial direction where the adhesive layer 151 exists. In other words, the adhesive layer 151 may not be a continuous straight line, but may be divided into multiple parts, which are arranged staggered in the radial direction, as long as it remains continuous in the axial direction. The arrangement of the adhesive layer 151 is not limited here.

[0080] In this embodiment, by providing a continuously distributed adhesive layer 151 in the axial direction on at least one side of the inner circumferential wall of the protective film 150, when the first ring 110 is pulled toward the distal end, the adhesive layer 151 can ensure that the protective film 150 is always subjected to an adhesive force in the axial direction, so that the protective film 150 can be turned outward point by point, and the protective film 150 will not shift from the position to be protected as the first ring 110 moves, thereby greatly improving the protective effect of the protective film 150 on the surface of the cable 300.

[0081] In some embodiments, Figure 6 , 7 As shown, the second collar 120 further includes a housing cavity 122. The housing cavity 122 is used to accommodate the folded segment 131. The cross-section of the housing cavity 122 can be rectangular, circular, etc. The housing cavity 122 is continuously distributed in the circumferential direction and is a three-dimensional structure including an internal cavity, wherein the internal cavity is used to store the folded segment 131, and the distal end of the folded segment 131 can be connected to the inner wall of the housing cavity 122.

[0082] The accommodating cavity 122 has a linear opening 1221 arranged along the circumferential direction. Figure 7 As shown, the linear openings are continuously distributed along the circumferential direction on the proximal side of the accommodating cavity 122, the proximal end of the folded section 131 is connected to the distal end of the unfolded section 132 through the linear opening, and the distal end of the unfolded section 132 is connected to the first ring 110. At this time, the proximal end wall of the accommodating cavity 122 can be used as the protrusion 121, and the upper surface of the end wall can be a smooth outer arc surface, on which the protruding particles 1211 can be distributed.

[0083] Correspondingly, since the accommodating cavity 122 itself must have a certain protrusion relative to the bottom of the second ring 120, when the accommodating cavity 122 is provided, the protrusion 121 can be provided based on the accommodating cavity 122, and can be integrated with the accommodating cavity 122 or provided separately, and can be provided according to actual conditions, and there is no limitation on this.

[0084] For example, the linear opening 1221 can also be arranged on the outer peripheral surface of the accommodating cavity 122 or on one of the end walls on both sides. If the linear opening 1221 is arranged on the end wall, the distance between the linear opening 1221 and the center line a is greater than the height of the first ring 110, and the line connecting the linear opening 1221 and the connection part between the proximal end of the expansion section 132 and the first ring 110 is higher than the end point of the proximal end of the second ring 120.

[0085] Specifically, the opening size of the linear opening 1221 is larger than the thickness of the cylindrical film 130. In the specific implementation process, in order to better realize the function of the linear opening 1221 in limiting the thickness of the expansion section 132, the opening size of the linear opening 1221 can be set to be slightly larger than the thickness of the cylindrical film 130, for example, the opening size of the linear opening 1221 is set to be twice the thickness of the cylindrical film 130. The opening size of the linear opening 1221 can be set as needed and is not limited here.

[0086] like Figure 6 , 7 As shown, by providing the accommodating cavity 122 to accommodate the folded segment 131, the folded segment 131 can be protected during storage and transportation to prevent it from being scattered, scratched or contaminated. Furthermore, a linear opening 1221 is provided on the accommodating cavity 122, and the unfolded segment 132 is stretched through the linear opening 1221. Therefore, by limiting the opening size of the linear opening 1221, the thickness of the stretched unfolded segment 132 can be limited, thereby further helping the unfolded segment 132 to be stretched flat and preventing the folded segment 131 from being stacked during the unfolding process.

[0087] Some embodiments of the present application also include an endoscope, which includes an operating handle 200, a cable 300 and an insertion portion 400. The operating handle 200 is provided with a cable interface, which is used to connect with the cable 300. The cable 300 is provided with the aforementioned endoscope cable protective cover.

[0088] Note that the endoscope involved in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of endoscope.

[0089] The above embodiments of the present application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0090] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An endoscope cable protective cover, characterized in that: include: Center line a; A first set of rings (110); A second ring (120), wherein the second ring (120) and the first ring (110) are arranged in sequence and spaced apart from each other in a direction from the proximal end to the distal end along the center line a; a cylindrical film (130), the cylindrical film (130) comprising a folded section (131) formed by folding in a manner of compressing its axial length and an unfolded section (132) connected to the proximal end of the folded section (131), the folded section (131) being sleeved on the outer peripheral wall of the second ring (120), the proximal end of the unfolded section (132) being connected to the first ring (110), and the distal end of the folded section (131) being connected to the second ring (120), so that the first ring (110) and the second ring (120) can be sleeved on the cable (300) together with the cylindrical film (130); The endoscope cable protective sleeve further comprises a protrusion (121), wherein the protrusion (121) is circumferentially arranged on the outer peripheral wall of the second ring (120), and the protrusion (121) is located between the proximal end and the distal end of the expansion section (132). The raised portion (121) is used to contact the inner wall of the expansion section (132), and the distance between the vertex of the raised portion (121) and the center line a is greater than the distance between the connection point between the expansion section (132) and the first ring (110) and the center line a, and the connection point between the expansion section (132) and the first ring (110) is higher than the intersection of the first ring (110) and the extended line connecting the vertex of the raised portion (121) and the proximal end point of the second ring (120).

2. The endoscope cable protective cover according to claim 1, characterized in that: The outer peripheral wall of the protruding portion (121) comprises an outer arc surface extending from the distal end to the proximal end along the center line a.

3. The endoscope cable protective cover according to claim 1, characterized in that: Protruding particles (1211) are provided on the outer peripheral wall of the protruding portion (121), and the protruding particles (1211) are in contact with the inner peripheral wall of the unfolding section (132).

4. The endoscope cable protective cover according to claim 1, characterized in that: The proximal end of the expansion section (132) is butted and sealed with the end wall of the distal end of the first collar (110), and the connection point between the expansion section (132) and the first collar (110) is radially spaced from the inner circumferential wall of the first collar (110); And / or, the distal end of the folded section (131) is butt-jointed and sealed with the distal end wall of the second collar (120), and the connection point between the folded section (131) and the second collar (120) is radially spaced from the inner circumferential wall of the second collar (120).

5. The endoscope cable protective cover according to claim 1, characterized in that: A weak connection portion (140) is connected between the first ring (110) and the second ring (120); the weak connection portion (140) itself or the connection point with the first ring (110) and / or the second ring (120) can be broken and fractured under external force.

6. The endoscope cable protective cover according to claim 1, characterized in that: The inner circumferential wall of the first collar (110) is provided with a cylindrical protective film (150) extending in the axial direction, the proximal end of the protective film (150) is connected to the first collar (110), and the distal end of the protective film (150) is detachably connected to the distal end of the first collar (110) or the second collar (120); An adhesive layer (151) for bonding the cable (300) is at least partially provided on the inner peripheral wall of the protective film (150), and an anti-sticking film is provided on the surface of the adhesive layer (151).

7. The endoscope cable protective cover according to claim 6, characterized in that: The proximal end of the protective film (150) is connected to the end wall or the outer peripheral wall of the proximal end of the first sleeve ring (110), and at least one axial side of the inner peripheral wall of the protective film (150) has a continuously distributed adhesive layer (151).

8. The endoscope cable protective cover according to claim 1, characterized in that: The second collar (120) further comprises a receiving cavity (122), wherein the receiving cavity (122) is used to receive the folded section (131), and the receiving cavity (122) has a linear opening (1221) arranged along the circumferential direction, and the proximal end of the unfolded section (132) is connected to the first collar (110) via the linear opening (1221).

9. An endoscope, characterized in that: The endoscope comprises an operating handle (200), a cable (300) and an insertion portion (400), wherein the operating handle (200) is provided with a cable interface, the cable interface is used for docking with the cable (300), and the cable (300) is provided with an endoscope cable protective cover according to any one of claims 1 to 8.

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