Endoscopic examination pad
By using a conical structure and a water-resistant sponge strip design, the limitations of endoscope examination pads in terms of waste absorption and leakage prevention are overcome, achieving effective waste barrier and extending service life, while reducing the risk of cross-infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN UNIV
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-08
AI Technical Summary
Existing endoscopic examination pads have limitations in terms of waste absorption and leakage prevention. In particular, when the waste discharge volume is overloaded, it is easy to cause backflow of waste and cross-infection, which affects patient comfort and safety.
An endoscopy pad was designed with a conical structure and a water-resistant sponge strip. The water-resistant sponge strip prevents the splashing and backflow of contaminated liquid. A guide channel and a collection area are set in the guide area to extend the absorption capacity of contaminated liquid and reduce the number of replacements.
It effectively prevents splashing and seepage of waste liquid, reduces the risk of cross-infection, extends the service life, reduces the frequency of replacement, and improves the efficiency of use.
Smart Images

Figure CN224207025U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical auxiliary equipment technology, specifically relating to an endoscopy examination pad. Background Technology
[0002] Endoscopic examination is a routine procedure in modern medical technology. It involves inserting an endoscopic device into the body through natural cavities (such as the mouth and anus) or surgical incisions to observe, diagnose, and perform interventional treatments on organs. During the procedure, patients may produce secretions and excretions due to physiological reactions. If these fluids are not effectively controlled, they pose a risk of contaminating the patient's clothing, the examination bed, and the surrounding environment.
[0003] To control contamination from endoscopic procedures, the endoscopic examination pads used in clinical practice employ a physical isolation principle to prevent contaminants from directly contacting the patient's clothing or the bed surface, thus maintaining the hygiene of the procedure area. After the examination, medical staff can quickly restore bed cleanliness by replacing the examination pad, eliminating the need for a time-consuming and complex overall bed cleaning and disinfection process.
[0004] Current endoscopic examination pads have design limitations in improving patient comfort and environmental cleanliness. Mainstream products employ a planar structure with overall absorbency. When a patient's head or buttocks rests against a specific area of the pad, the tilted position creates a fluid gradient, causing contaminated fluid to move towards lower areas under gravity. During this process, the contaminated fluid, after being absorbed by the pad, may undergo reverse seepage, contaminating the patient's contact area and affecting their experience, while also posing a risk of cross-infection. When the amount of contaminated fluid exceeds the material's absorption threshold, the examination must be interrupted for pad replacement, potentially disrupting the procedure and increasing the consumption of medical resources.
[0005] The utility model patent with publication number CN206026523U discloses a special nursing pad for colonoscopy, including a lower pad and an upper pad. The lower pad has a three-layer structure: the first layer is a surface layer placed under the patient's buttocks, the third layer is a leak-proof layer, and the second layer is an absorbent layer placed between the first and third layers. The upper pad has circular holes. Although this solution can achieve basic functions of absorbing waste and preventing leakage, it has technical defects such as limited absorption capacity and lack of active barrier structure. Under conditions of excessive waste discharge, it is difficult to effectively isolate the source of contamination from the patient's body surface. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, this utility model provides an endoscopy examination pad that can not only absorb a large amount of contaminated liquid through its conical structure, but also separate the contaminated liquid from the patient through a water-resistant sponge strip, preventing the patient from being infected by the contaminated liquid.
[0007] The above-mentioned objective of this utility model is achieved through the following technical solution:
[0008] This utility model provides an endoscopy examination pad, comprising a bottom layer, a middle layer, and an uppermost layer arranged sequentially. The bottom layer and the middle layer are rectangular in shape. The bottom layer is the pad body. The middle layer includes a support area, a drainage area, and a contamination collection area. The support area and the contamination collection area are located in two opposite corners of the pad body, and the drainage area is located in the area between the support area and the contamination collection area. A raised water-resistant sponge strip is provided at the connection between the support area and the drainage area. The drainage area is provided with multiple drainage channels extending from the water-resistant sponge strip to the contamination collection area. The uppermost layer is located above the contamination collection area and completely overlaps with the contamination collection area. The right-angled side of the contamination collection area is connected to the uppermost layer. The contamination collection area and the uppermost layer form a conical structure with the opening facing the drainage area.
[0009] According to one embodiment of the present invention, the intermediate layer further includes a flow collection area disposed in another pair of diagonal regions of the pad body, wherein the flow collection area, the dirt collection area and the uppermost layer are all isosceles right triangles.
[0010] According to one embodiment of the present invention, the pad, the support area, the dirt collection area, the flow collection area and the uppermost layer are composed of a PE waterproof membrane.
[0011] According to one embodiment of the present invention, the flow guiding area includes a cotton spunlace fabric and a SAP absorbent core, wherein the SAP absorbent core is disposed between the cotton spunlace fabric and the pad.
[0012] According to one embodiment of the present invention, the SAP absorbent core is covered with absorbent and dust-free paper on both sides.
[0013] According to one embodiment of the present invention, the waterproof sponge strip includes a sponge core and a PE waterproof membrane covering the outside of the sponge core.
[0014] According to one embodiment of the present invention, the waterproof sponge strip is an arc-shaped structure with the arc center facing the support area.
[0015] The advantages of this utility model compared with the existing technical solutions are:
[0016] 1. This utility model has a water-proof sponge strip at the connection between the support area and the drainage area. This structure can keep the patient's head or buttocks in close contact with the examination pad, preventing the contaminated liquid from splashing onto the body surface from the gap between the patient and the water-proof sponge strip. At the same time, it prevents the contaminated liquid in the drainage area from seeping into the support area, reducing the risk of cross-infection caused by the patient coming into contact with contaminated liquid.
[0017] 2. This utility model features a guide channel extending from the waterproof sponge strip to the dirt collection area within the guide zone. The dirt collection area and the uppermost layer together form a conical structure with the opening facing the guide zone. When the amount of wastewater absorbed by the guide zone exceeds the water-absorbing material's bearing capacity, the wastewater can move along the guide channel to the dirt collection area. This design extends the effective service life of the inspection pad and reduces the frequency of inspection pad replacement.
[0018] 3. The drainage area of this utility model includes a fully spunlace fabric, an SAP absorbent core, and absorbent paper disposed on both sides of the SAP absorbent core. When the waste liquid comes into contact with the fully spunlace fabric, the absorbent paper guides the waste liquid into the interior of the SAP absorbent core. This process avoids the waste liquid splashing and contamination of the surgical area and medical staff.
[0019] 4. This utility model adds a collection area. When the guide area is overloaded with sewage, the sewage is blocked from spreading to the collection areas on both sides due to the PE waterproof membrane used in the collection area. This structure prevents sewage from overflowing from the side of the guide area and contaminating the surgical environment. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the intermediate layer structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the flow guiding area and the pad body of this utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the conical structure formed by the combination of the dirt collection area and the top layer of this utility model; in the figure: 1. Support area; 2. Waterproof sponge strip; 3. Guide area; 4. Dirt collection area; 5. Flow collection area; 6. Guide channel; 7. Top layer; 8. Pad; 9. Absorbent dust-free paper; 10. SAP absorbent core; 11. All-cotton spunlace fabric. Detailed Implementation
[0023] The present invention will now be described in detail through specific embodiments, but this does not limit the scope of protection of the present invention.
[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] Example 1
[0027] like Figure 1-3 As shown, this embodiment provides an endoscopy pad for receiving and collecting waste fluid generated during patient endoscopy. It comprises a three-layer structure arranged sequentially from the bottom layer to the top layer 7. The bottom layer is the pad body 8, and the pad body 8 and the middle layer are rectangular in shape. The middle layer includes a support area 1, a drainage area 3, a waste collection area 4, and a collection area 5. In use, the area in contact with the patient's head or buttocks is typically located at one corner of the pad body 8, while the opposite corner of the pad body 8 slopes downwards. The patient contact area is the support area 1, which has a fan-shaped structure. This area, along with the pad body 8, is composed of a PE waterproof membrane. The PE waterproof membrane is a waterproof barrier material made primarily of polyethylene (PE), possessing excellent waterproof, moisture-proof, and corrosion-resistant properties. Its core function is to prevent the penetration of moisture, humidity, or chemicals through physical barrier action.
[0028] like Figure 1 As shown, a waterproof sponge strip 2 is installed at the junction of the support area 1 and the drainage area 3. This structure is composed of an inner sponge core and an outer PE waterproof membrane. The waterproof sponge strip 2 has a dual function: it deforms to adapt to the contours of the patient's body surface to form a sealed interface, preventing contaminated liquid from splashing from the contact gap; at the same time, it forms a physical barrier to prevent contaminated liquid from the drainage area 3 from back-permeating into the support area 1, reducing the risk of cross-contamination. The waterproof sponge strip 2 is designed as an arc-shaped structure with its arc center facing the support area 1, allowing it to better adapt to the contours of the patient's body surface. With a width of 5 cm and a cross-sectional height exceeding the plane of the pad 8 by 5 cm, the waterproof sponge strip 2, after adapting to the contours of the patient's body surface, still has sufficient height to prevent contaminated liquid from the drainage area 3 from back-permeating into the support area 1.
[0029] like Figure 3As shown, the sludge collection area 4 is located on the pad 8, at a corner opposite the support area 1. The sludge collection area 4 has an isosceles right-angled triangle structure, and the uppermost layer 7 has the same shape and size as the sludge collection area 4, also an isosceles right-angled triangle structure. The uppermost layer 7 is located above the sludge collection area 4 and completely overlaps with it. The sludge collection area 4 and the guide area 3 are connected at the long side of the isosceles right-angled triangle. The right-angled side of the sludge collection area 4 is connected to the uppermost layer 7, and the long side of the sludge collection area 4 can be separated from the uppermost layer 7, thus forming a conical structure with an opening facing the guide area 3. During operation, the long side of the uppermost layer 7 needs to be separated from the long side of the guide area 3 to form a complete conical structure.
[0030] like Figure 1 As shown, the two corners on both sides of the pad 8 are the collection areas 5, which are composed of a PE waterproof membrane. Each collection area 5 has an isosceles right-angled triangular structure. In use, the edge of the collection area 5 is pulled upward, and the sewage splashed into the collection area 5 flows to the guide area 3 by gravity, so that the sewage flows along the guide channel 6 in the guide area 3 to the sewage collection area 4, realizing the lateral overflow prevention function.
[0031] like Figure 2 As shown, the flow guiding zone 3 is located between the support zone 1 and the collection zone 4. The absorbent material of the flow guiding zone 3 adopts a four-layer composite structure, which includes a bottom layer, a second layer, a third layer, and a top layer: The bottom layer is absorbent paper 9 fixed to the pad 8, whose main functions include promoting the lateral diffusion of the waste liquid to avoid local saturation, and fixing the position of the SAP absorbent core 10 particles to maintain structural stability; The second layer is the SAP absorbent core 10, whose main component is superabsorbent polymer sodium polyacrylate, which is white granules / powder with a particle size range of 50-500μm. It can absorb 300-500 times its own weight in waste liquid through osmotic pressure and capillary action; The third layer is absorbent paper 9, which accelerates the transfer of waste liquid from the top layer to the SAP absorbent core 10 through fiber guidance, avoiding waste liquid retention and splashing; The top layer is made of cotton spunlace fabric 11, which has the functions of skin-friendliness, physical barrier, and structural restriction, preventing the SAP absorbent core 10 from over-expanding and damaging the four-layer composite structure.
[0032] like Figure 1 As shown, the flow guiding zone 3 is provided with multiple flow guiding channels 6 extending from the waterproof sponge strips 2 to the sewage collection zone 4. The flow guiding channels 6 are not covered by an absorbent layer, directly exposing the substrate of the pad 8. When the absorbent layer reaches its saturation capacity, due to the physical constraints of the flow guiding channels 6 on both sides and the upper waterproof sponge strips 2, excess sewage preferentially flows into the sewage collection zone 4 along the flow guiding channels 6. This design can reduce the amount of sewage residue in the flow guiding zone 3. As the sewage continues to fall, the residual amount decreases to below the critical splash threshold, thereby reducing the probability of sewage splashing.
[0033] Example 2
[0034] This embodiment further illustrates the overall usage method of this utility model:
[0035] 1. Place the endoscopy pad under the patient's examination site, and place the patient's head or buttocks on the waterproof sponge strip 2, ensuring that the patient's head or buttocks are in close contact with the waterproof sponge strip 2.
[0036] 2. Adjust the orientation of the endoscopy examination pad, tilt the drainage area 3 downwards, and position the water-proof sponge strip 2 above the drainage area 3, with the drainage area 3 above the dirt collection area 4.
[0037] 3. Separate the long side of the uppermost layer 7 from the sludge collection area 4 to form a complete conical structure.
[0038] 4. Raise the edge of the collection area 5 to form a temporary barrier structure, which prevents the sewage from the diversion area 3 from overflowing from the collection area 5, and guides the sewage splashed into the collection area 5 back to the diversion area 3 through the slope.
[0039] 5. During endoscopic examinations, the patient's waste will fall into the drainage area 3, where it will be quickly absorbed by the absorbent material layer, effectively preventing splashing.
[0040] 6. When the amount of waste liquid exceeds the absorption capacity of the guide zone 3, the excess liquid will flow through the guide channel 6 in the guide zone 3 to the conical structure for storage, which greatly improves the upper limit of waste liquid carrying capacity of the endoscope examination pad.
[0041] The embodiments described above are merely preferred embodiments of this utility model, and not all possible embodiments of this utility model. Any obvious modifications made by those skilled in the art without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.
Claims
1. An endoscopic examination pad, characterized in that, The system includes a bottom layer, a middle layer, and an uppermost layer (7) arranged sequentially. The bottom layer and the middle layer are rectangular in shape. The bottom layer is a pad (8). The middle layer includes a support area (1), a flow guiding area (3), and a dirt collection area (4). The support area (1) and the dirt collection area (4) are located at opposite corners of the pad (8). The flow guiding area (3) is located between the support area (1) and the dirt collection area (4). A raised water-proof sponge strip (2) is provided at the connection between the support area (1) and the flow guiding area (3). The flow guiding area (3) is provided with multiple flow guiding grooves (6) extending from the water-proof sponge strip (2) to the dirt collection area (4). The uppermost layer (7) is located above the dirt collection area (4) and completely overlaps with the dirt collection area (4). The right-angled side of the dirt collection area (4) is connected to the uppermost layer (7). The dirt collection area (4) and the uppermost layer (7) form a conical structure with the opening facing the flow guiding area (3).
2. The endoscopic examination pad according to claim 1, characterized in that, The intermediate layer also includes a flow collection area (5) located in another pair of diagonal regions of the pad (8), and the flow collection area (5), the dirt collection area (4) and the uppermost layer (7) are all isosceles right triangles.
3. The endoscopic examination pad according to claim 2, characterized in that, The pad (8), support area (1), sewage collection area (4), flow collection area and top layer (7) are composed of PE waterproof membrane.
4. The endoscopic examination pad according to claim 3, characterized in that, The flow guide area (3) includes a cotton spunlace fabric (11) and an SAP absorbent core (10), with the SAP absorbent core (10) disposed between the cotton spunlace fabric (11) and the pad (8).
5. The endoscopic examination pad according to claim 4, characterized in that, The SAP absorbent core (10) is covered with absorbent and dust-free paper (9) on both sides.
6. The endoscopic examination pad according to claim 5, characterized in that, The waterproof sponge strip (2) includes a sponge core and a PE waterproof membrane covering the outside of the sponge core.
7. The endoscopic examination pad according to claim 6, characterized in that, The waterproof sponge strip (2) is an arc-shaped structure with its arc center facing the support area (1).
Citation Information
Patent Citations
Special nursing of intestines mirror is filled up
CN206026523U