An excrement cleaner for urinary stoma bag change

Abstract

The present invention provides an excrement cleaner for urinary stoma bag changing, belonging to the technical field of stoma care. It includes a substrate, a stoma bag, a chassis, an auxiliary unit, and a fixing unit; the auxiliary unit includes a base arranged outside the substrate, and both ends of the outer wall of the base are symmetrically and fixedly connected with fixing plates located outside the lower end of the substrate. By setting the auxiliary unit, after taking out the used substrate and stoma bag, the plastic film can be pulled first, and a bag mouth is formed between the plastic film and the base through the elasticity of the plastic film itself. Then, the stoma is cleaned with a cleaning solution, and the liquid generated during the cleaning of the stoma and the secretions flowing out of the stoma can directly fall into the bag mouth for temporary storage. After the substrate and the stoma bag are connected to the chassis, by pushing two groups of limiting strips, the engaging teeth are separated from the engaging blocks, thereby releasing the connection between the base and the chassis, and the single base can be taken out to clean the bag mouth.

Description

Technical Field

[0001] The present invention relates to the technical field of stoma care, and more specifically, to an excrement cleaner for urinary stoma bag replacement. Background Art

[0002] An excrement cleaner for urinary stoma bag replacement is a medical auxiliary instrument specifically designed to clean the excrement (mainly urine) around the stoma during the process of replacing the stoma bag for patients with urinary stomas.

[0003] Currently, when the excrement cleaner for stoma bag replacement is cleaning, it is necessary to untie or cut the old stoma bag in advance, then wipe the urine and secretions around the stoma, and then dock the new stoma bag with the stoma. However, since there is no detrusor muscle at the urinary stoma, urination is not under human control. During the process of replacing the stoma bag, a small amount of urine or secretion still flows out, and it is necessary to continuously clean the area around the stoma to cooperate with the replacement of the stoma bag. The entire process of replacing the stoma bag is relatively long, and the steps that need to be operated are relatively cumbersome, which is not suitable for independent operation by patients. Summary of the Invention

[0004] Aiming at the problems in the prior art, the purpose of the present invention is to provide an excrement cleaner for urinary stoma bag replacement.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] An excrement cleaner for urinary stoma bag replacement, including a substrate and a stoma bag fixed on the outer wall of the substrate. A chassis is provided on one side of the outer wall of the substrate away from the stoma bag; an auxiliary unit, which is connected to the chassis and assists in the operation of replacing the stoma bag; a fixing unit, which is located inside and outside the substrate and is connected to the chassis, and the fixing unit is used to fix between the substrate, the stoma bag and the chassis.

[0007] Optionally, the auxiliary unit includes a base provided outside the substrate. Both ends of the outer wall of the base are symmetrically and fixedly connected with fixing plates located outside the lower end of the substrate. A plastic film is provided between the base and the fixing plates. An upper mounting plate is provided on the top of the base. Both ends of the top of the upper mounting plate are symmetrically and fixedly connected with side mounting plates. A waterproof strip extending to the surface of the other group of side mounting plates is fixedly connected to the outer wall of one group of side mounting plates.

[0008] Optionally, the auxiliary unit further includes a connecting ring fixedly connected to the outer wall of the chassis close to one side of the substrate. At both ends of the outer wall of the connecting ring, clamping blocks are symmetrically and fixedly connected. On the top of the base, limiting strips are symmetrically arranged. The two limiting strips are respectively located on one side of the two side mounting plates close to the chassis. Between the two limiting strips, elastic bands are symmetrically arranged. The lower ends of the two elastic bands are fixedly connected to the base, and the upper ends of the two elastic bands are respectively fixedly connected to the two limiting strips.

[0009] Optionally, at one end of the two limiting strips close to each other, multiple sets of teeth are fixedly connected. The outer walls of the teeth and the clamping blocks close to each other are both provided with inclined surface structures.

[0010] Optionally, the fixing unit includes a fixing ring fixedly connected to the outer wall of the connecting ring away from the chassis. At one end of the inner wall of the fixing ring, a fixing hole is opened. The outer wall of the fixing ring is sleeved with a docking ring. At one end of the outer wall of the docking ring, a mounting pipe is fixedly connected. Inside the mounting pipe, a limiting cross bar extending into the fixing hole is movably arranged. On the top of the mounting pipe, a limiting sliding groove is opened.

[0011] Optionally, the fixing unit further includes a limiting pull rod fixedly connected to the top of the limiting cross bar and penetrating through the mounting pipe. A spring is arranged inside the mounting pipe. The two ends of the spring respectively abut against the limiting cross bar and the inner wall of the mounting pipe. An actuating block is arranged on the outside of the upper end of the limiting pull rod.

[0012] Optionally, the fixing unit further includes an inner mounting plate fixedly connected to the outer wall of the upper end of the docking ring. A round hole is arranged inside the inner mounting plate. A limiting block is fixedly connected to the top of the actuating block. A connecting rod is fixedly connected to the top of the limiting block. The connecting rod penetrates through the stoma bag and extends above the stoma bag. An angular limiting block is fixedly connected inside the round hole.

[0013] Optionally, the outer diameter of the limiting block matches the inner diameter of the round hole. The limiting block is movably arranged inside the inner mounting plate through the round hole. The angular limiting block is attached to the end of the limiting block.

[0014] Optionally, a positioning groove is arranged on the surface of the actuating block away from the limiting block.

[0015] Optionally, for the excrement cleaner for urinary stoma bag changing, it is characterized in that a sliding part is arranged on one side of the limiting cross bar away from the spring, and the surface of the sliding part is also provided with an inclined surface structure.

[0016] The technical solution provided by the present invention has at least the following beneficial effects compared with the prior art:

[0017] In the above solution, by setting an auxiliary unit; when taking out the used substrate and the ostomy bag, the plastic film can be pulled first, and a bag opening is formed between the plastic film and the base through the elasticity of the plastic film itself. Then, the stoma is cleaned with a cleaning liquid, and the liquid generated during the cleaning of the stoma and the secretion flowing out of the stoma can directly fall into the bag opening for temporary storage. After completing the cleaning work on the surface of the stoma, the connection between the substrate and the ostomy bag and the chassis is completed through the fixing unit, which is convenient for the physiological use of the patient. After the connection between the substrate and the ostomy bag and the chassis is completed, by pushing two groups of limiting bars, the engaging teeth are separated from the engaging blocks, thereby releasing the connection between the base and the chassis, and the separate base can be taken out to clean the bag opening. Through the mutual cooperation of the above parts, the entire process of replacing the bag opening can be disassembled to simplify the operation steps of each process and facilitate the patient to operate independently.

[0018] By setting a fixing unit; rotating the connecting rod can drive the limiting cross bar to move and separate from the fixing hole, thereby releasing the connection between the substrate and the ostomy bag and the chassis, so as to facilitate the operation of the auxiliary unit; during this process, rotating the connecting rod clockwise by a certain degree can drive the limiting block to rotate, so that the plane on the outer wall of the limiting block abuts against the angle limiting block. At this time, the driving block also completes rotation under the drive of the limiting block, and after the driving block pushes the limiting pull rod, the positioning groove is sleeved on the outer wall of the limiting pull rod. At this time, the connection between the substrate and the ostomy bag and the chassis can be kept disconnected, thus facilitating the use by the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the structure of the back view of the present invention;

[0022] Figure 3 is a schematic cross-sectional structure diagram of the substrate and the ostomy bag of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the auxiliary unit of the present invention;

[0024] Figure 5 is an exploded view of the chassis and the connecting ring of the present invention;

[0025] Figure 6 is of the present invention Figure 5 enlarged view at A;

[0026] Figure 7 Schematic structural diagram of the fixing unit of the present invention;

[0027] Figure 8 Exploded sectional view of the fixing unit of the present invention;

[0028] Figure 9 Exploded view of the fixing unit of the present invention.

[0029] [Reference numerals]

[0030] 1, substrate; 2, ostomy bag; 3, base; 4, chassis; 5, fixing ring; 6, docking ring; 7, plastic film; 8, fixing plate; 9, side mounting plate; 10, waterproof strip; 11, limiting strip; 12, upper mounting plate; 13, elastic band; 14, teeth; 15, block; 16, connecting ring; 17, mounting tube; 18, spring; 19, limiting cross bar; 20, limiting pull rod; 21, limiting chute; 22, sliding part; 23, connecting rod; 24, limiting stop block; 25, driving block; 26, positioning groove; 27, inner mounting plate; 28, round hole; 29, fixing hole; 30, angle limiting block.

[0031] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; and the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0033] It should be pointed out that in the specification, it is mentioned that "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0034] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather can alternatively, at least in part depending on the context, allow for the existence of other factors that are not necessarily explicitly described.

[0035] It is to be understood that the meanings of "on", "above", and "over" in the present invention should be construed in the broadest manner such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0036] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0037] As Figures 1 to 9 shown, an excrement cleaner for urinary stoma bag replacement according to an embodiment of the present invention includes a substrate 1 and a stoma bag 2 fixed to the outer wall of the substrate 1. A chassis 4 is provided on one side of the outer wall of the substrate 1 away from the stoma bag 2; an auxiliary unit, which is connected to the chassis 4 and assists in the replacement operation of the stoma bag 2; a fixing unit, which is located inside and outside the substrate 1 and is connected to the chassis 4, and the fixing unit is used to fix between the substrate 1, the stoma bag 2 and the chassis 4; the auxiliary unit includes a base 3 provided outside the substrate 1. Both ends of the outer wall of the base 3 are symmetrically and fixedly connected with fixing plates 8 located outside the lower end of the substrate 1. A plastic film 7 is provided between the base 3 and the fixing plates 8. An upper mounting plate 12 is provided on the top of the base 3. Both ends of the top of the upper mounting plate 12 are symmetrically and fixedly connected with side mounting plates 9. A waterproof strip 10 extending to the surface of the other group of side mounting plates 9 is fixedly connected to the outer wall of a group of the side mounting plates 9.

[0038] The auxiliary unit further includes a connecting ring 16 fixedly connected to the outer wall of the chassis 4 close to one side of the substrate 1. At both ends of the outer wall of the connecting ring 16, clamping blocks 15 are symmetrically and fixedly connected. On the top of the base 3, limiting strips 11 are symmetrically arranged. The two groups of limiting strips 11 are respectively located on one side of the two side mounting plates 9 close to the chassis 4. Between the two groups of limiting strips 11, elastic bands 13 are symmetrically arranged. The lower ends of the two groups of elastic bands 13 are fixedly connected to the base 3, and the upper ends of the two groups of elastic bands 13 are respectively fixedly connected to the two groups of limiting strips 11. Multiple sets of teeth 14 are fixedly connected to the mutually approaching ends of the two groups of limiting strips 11. The mutually approaching outer walls of the teeth 14 and the clamping blocks 15 are both arranged in an inclined plane structure.

[0039] First, the lengths of the connecting ring 16 and the fixing ring 5 are less than the protruding height of the stoma. The chassis 4 is attached around the patient's stoma. When the ostomy bag 2 needs to be replaced, first, the fixing unit is used to release the connection between the substrate 1 and the ostomy bag 2 and the chassis 4, so as to take out the used substrate 1 and ostomy bag 2 for replacement. In this process, the plastic film 7 can be pulled first. Through the elasticity of the plastic film 7 itself, a bag mouth is formed between the plastic film 7 and the base 3. Then, the stoma is cleaned with a cleaning solution, and the liquid generated during the cleaning of the stoma and the secretions flowing out of the stoma can directly fall into the bag mouth for temporary storage. After the cleaning work on the surface of the stoma is completed, the fixing unit is used to complete the connection between the substrate 1 and the ostomy bag 2 and the chassis 4, which is convenient for the patient's physiological use.

[0040] After the connection between the substrate 1 and the ostomy bag 2 and the chassis 4 is completed, by pushing the upper ends of the two groups of limiting strips 11, the two groups of limiting strips 11 are bent in a mutually separated direction. The deformation of the limiting strips 11 drives the separation of the teeth 14 and the clamping blocks 15, thereby releasing the connection between the base 3 and the chassis 4, and the base 3 alone can be taken out to clean the bag mouth. Through the mutual cooperation of the above parts, the entire process of replacing the bag mouth can be disassembled to simplify the operation steps of each process, which is convenient for the patient to operate independently.

[0041] After the bag mouth is rinsed, it can be restored under its own elasticity. The base 3 is moved again to drive the two groups of limiting strips 11 to be inserted back into the outer wall of the connecting ring 16. Through the restoring force of the elastic band 13, and by the mutual engagement of the teeth 14 and the clamping blocks 15, the connection operation between the base 3 and the chassis 4 can be completed.

[0042] Such as Figures 1 to 9As shown, the fixing unit includes a fixing ring 5 fixedly connected to the outer wall of the connecting ring 16 on the side away from the chassis 4. One end of the inner wall of the fixing ring 5 is provided with a fixing hole 29. The outer wall of the fixing ring 5 is sleeved with a docking ring 6. One end of the outer wall of the docking ring 6 is fixedly connected with an installation pipe 17. A limiting cross bar 19 extending into the fixing hole 29 is movably arranged inside the installation pipe 17. A limiting sliding groove 21 is opened at the top of the installation pipe 17. The fixing unit further includes a limiting pull rod 20 fixedly connected to the top of the limiting cross bar 19 and penetrating through the installation pipe 17. A spring 18 is arranged inside the installation pipe 17. Two ends of the spring 18 respectively abut against the limiting cross bar 19 and the inner wall of the installation pipe 17. A driving block 25 is arranged outside the upper end of the limiting pull rod 20. The fixing unit further includes an inner installation plate 27 fixedly connected to the outer wall of the upper end of the docking ring 6. A round hole 28 is arranged inside the inner installation plate 27. A limiting stop block 24 is fixedly connected to the top of the driving block 25. A connecting rod 23 is fixedly connected to the top of the limiting stop block 24. The connecting rod 23 penetrates through the ostomy bag 2 and extends above the ostomy bag 2.

[0043] An angle limiting block 30 is fixedly connected inside the round hole 28. The outer diameter of the limiting stop block 24 matches the inner diameter of the round hole 28. The limiting stop block 24 is movably arranged inside the inner installation plate 27 through the round hole 28. The angle limiting block 30 abuts against the end of the limiting stop block 24. A positioning groove 26 is arranged on the surface of the driving block 25 away from the limiting stop block 24.

[0044] By rotating the connecting rod 23, the limiting stop block 24 can be driven to rotate. The rotation of the limiting stop block 24 drives the driving block 25 to rotate. When the driving block 25 rotates, its outer wall contacts the limiting pull rod 20 and pushes the limiting pull rod 20 to move horizontally inside the limiting sliding groove 21 and drives the limiting cross bar 19 to move. The movement of the limiting cross bar 19 separates from the fixing hole 29, and the connection between the substrate 1 and the ostomy bag 2 and the chassis 4 can be released, so as to facilitate the operation of the auxiliary unit.

[0045] During this process, rotating 90 degrees clockwise along the connecting rod 23 can drive the limiting stop block 24 to rotate 90 degrees, so that the plane on the outer wall of the limiting stop block 24 abuts against the angle limiting block 30. At this time, the driving block 25 also completes a 90-degree rotation driven by the limiting stop block 24. After the driving block 25 pushes the limiting pull rod 20, the positioning groove 26 is sleeved on the outer wall of the limiting pull rod 20. At this time, the disconnection of the connection between the substrate 1 and the ostomy bag 2 and the chassis 4 can be maintained, thus facilitating the use by the user.

[0046] As Figure 8 shown, a sliding part 22 is arranged on the side of the limiting cross bar 19 away from the spring 18, and the surface of the sliding part 22 is also arranged as an inclined plane structure.

[0047] Through this structural setting, when the limiting cross bar 19 contacts the docking ring 6, the sliding part 22 is stressed and contracts, retracting into the interior of the mounting tube 17. After the mounting tube 17 is aligned with the fixing hole 29, the limiting cross bar 19 enters the interior of the fixing hole 29 under the reset action of the spring 18 to complete the limiting operation of the connection between the substrate 1, the ostomy bag 2 and the chassis 4.

[0048] The specific working process of the technical solution of the present invention is as follows;

[0049] First, by rotating the connecting rod 23, the limiting block 24 can be driven to rotate. The rotation of the limiting block 24 drives the driving block 25 to rotate. When the outer wall of the driving block 25 contacts the limiting pull rod 20, it pushes the limiting pull rod 20 to move horizontally inside the limiting chute 21 and drives the limiting cross bar 19 to move. The movement of the limiting cross bar 19 separates from the fixing hole 29, and the connection between the substrate 1, the ostomy bag 2 and the chassis 4 can be released, so as to facilitate the operation of the auxiliary unit.

[0050] Then, the used substrate 1 and ostomy bag 2 are taken out for replacement. In this process, the plastic film 7 can be pulled first. An opening is formed between the plastic film 7 and the base 3 through the elasticity of the plastic film 7 itself. Then, the stoma is cleaned with the cleaning liquid, and the liquid generated during the cleaning of the stoma and the secretion flowing out of the stoma can directly fall into the opening for temporary storage. After the cleaning work on the surface of the stoma is completed, the connection between the substrate 1, the ostomy bag 2 and the chassis 4 is completed through the fixing unit, which is convenient for the physiological use of the patient.

[0051] After the substrate 1 and the ostomy bag 2 are connected to the chassis 4, by pushing the upper ends of the two limiting strips 11, the two limiting strips 11 are bent in a direction away from each other. The deformation of the limiting strips 11 drives the engagement teeth 14 to separate from the engaging block 15, thereby releasing the connection between the base 3 and the chassis 4. Then the single base 3 can be taken out to clean the opening. Through the mutual cooperation of the above parts, the whole process of opening replacement can be disassembled to simplify the operation steps of each process and facilitate the independent operation of the patient.

[0052] After the opening is rinsed, it can be restored under its own elasticity. The base 3 is moved again to drive the two limiting strips 11 to insert back into the outer wall of the connecting ring 16. Through the reset force of the elastic band 13, the engagement teeth 14 and the engaging block 15 are engaged with each other, and the connection operation between the base 3 and the chassis 4 can be completed.

[0053] The present invention encompasses any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0054] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An excrement cleaner for urinary tract stoma bag changing, characterized in that: It comprises a base plate and an ostomy bag fixed on the outer wall of the base plate, wherein a bottom plate is arranged on a side of the base plate away from the outer wall of the ostomy bag; A fixing unit, the fixing unit is located inside and outside the base plate and connected to the bottom plate, and the fixing unit is used to fix the base plate and the ostomy bag to the bottom plate; An auxiliary unit, the auxiliary unit is connected to the chassis, and the auxiliary unit assists in the operation of replacing the ostomy bag; the auxiliary unit comprises a base arranged outside the base plate, the two ends of the outer wall of the base are symmetrically fixedly connected with a fixing plate located outside the lower end of the base plate, a plastic film is arranged between the base and the fixing plate, an upper mounting plate is arranged on the top of the base, and the two ends of the top of the upper mounting plate are symmetrically fixedly connected with side mounting plates; The auxiliary unit also includes a connecting ring fixedly connected to the outer wall of the chassis on one side close to the base plate, and blocks are symmetrically fixedly connected to the two ends of the outer wall of the connecting ring. Limiting strips are symmetrically arranged on the top of the base, and two groups of limiting strips are respectively located on one side of the two groups of side mounting plates close to the chassis. Elastic bands are symmetrically arranged between the two groups of limiting strips, and the lower ends of the two groups of elastic bands are fixedly connected to the base, and the upper ends of the two groups of elastic bands are respectively fixedly connected to the two groups of limiting strips; The ends of the two groups of limit strips close to each other are fixedly connected with multiple groups of latch teeth, and the outer walls of the latch teeth and the clamping blocks close to each other are both arranged as inclined structures; The fixing unit comprises a fixing ring fixedly connected to the outer wall of the connecting ring away from the chassis, a fixing hole is provided at one end of the inner wall of the fixing ring, a docking ring is sleeved on the outer wall of the fixing ring, a mounting tube is fixedly connected to one end of the outer wall of the docking ring, a limiting cross bar extending to the inside of the fixing hole is movably provided inside the mounting tube, and a limiting sliding groove is provided on the top of the mounting tube; The fixing unit also includes a limiting pull rod fixedly connected to the top of the limiting cross bar and passing through the mounting tube. A spring is arranged inside the mounting tube. The two ends of the spring are respectively against the limiting cross bar and the inner wall of the mounting tube. A driving block is arranged outside the upper end of the limiting pull rod.

2. The excrement cleaner for urinary stoma bag changing according to claim 1, characterized in that: The outer wall of one group of the side mounting plates is fixedly connected with a waterproof strip extending to the surface of the other group of the side mounting plates.

3. The excrement cleaner for urinary stoma bag changing according to claim 2, characterized in that: The fixing unit also includes an inner mounting plate fixedly connected to the outer wall of the upper end of the docking ring, a circular hole is arranged inside the inner mounting plate, a limit stop is fixedly connected to the top of the driving block, a connecting rod is fixedly connected to the top of the limit stop, the connecting rod passes through the ostomy bag and extends to the top of the ostomy bag, and an angle limit block is fixedly connected to the inside of the circular hole.

4. The excrement cleaner for urinary stoma bag changing according to claim 3, characterized in that: The outer diameter of the limit stopper matches the inner diameter of the circular hole, the limit stopper is movably arranged inside the inner mounting plate through the circular hole, and the angle limit block is fitted with the end of the limit stopper.

5. The excrement cleaner for urinary stoma bag changing according to claim 3, characterized in that: A positioning groove is arranged on a surface of the driving block away from one end of the limiting stopper.

6. The excrement cleaner for urinary stoma bag changing according to claim 1, characterized in that: A sliding portion is arranged on a side of the limiting cross bar away from the spring, and a surface of the sliding portion is also arranged as an inclined surface structure.

Images