A liquid absorbent pad

Abstract

The utility model discloses a liquid absorption pad is suitable for lithotomy operation, which comprises: a liquid separation pad; a liquid absorption assembly arranged on the liquid separation pad, wherein the liquid absorption assembly comprises a hydrophilic surface layer, a flow guide layer and a liquid absorption core arranged in sequence from top to bottom; and a waterproof layer covering the bottom surface of the liquid absorption core; the side edge of the waterproof layer extends upward and covers the side surface of the flow guide layer and the liquid absorption core, and is connected with the edge of the hydrophilic surface layer; the bottom surface of the waterproof layer is fixed on the middle region of the upper surface of the liquid separation pad through a detachable adhesive structure. The liquid absorption pad can solve the problem of easy sliding of the liquid absorption assembly.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies technology, specifically to a liquid absorbent pad. Background Technology

[0002] In urological, gynecological, and anorectal surgeries, the lithotomy position is the standard position for exposing the perineal surgical area. This position requires the patient to elevate and abduct both legs, with the buttocks positioned at the edge of the operating table, resulting in the perineum being adjacent to the slope at the foot of the operating table. During the procedure, the perineal area requires repeated disinfection (e.g., with povidone-iodine or chlorhexidine solution), and the surgical wound continuously produces blood, irrigation fluid, and tissue exudate. If these fluids remain on the skin surface, they not only increase the risk of infection but also interfere with the clarity of the surgical field, affecting the precision of the procedure. The current standard practice is to lay a waterproof sheet on the operating table and place absorbent material (such as absorbent paper or pads) directly under the perineum.

[0003] However, this method has significant drawbacks:

[0004] 1. Because the perineum is close to the inclined interface at the foot of the bed, the absorbent material increases in weight after absorbing liquid. Under the action of gravity, it slides down the slope at the foot of the bed, causing it to fall out of its intended position or even fall down, thus losing its function of collecting body fluid.

[0005] 2. The amount of bodily fluid secretion varies greatly in different surgeries (e.g., irrigation fluid >2000mL in transurethral resection of the prostate, and bleeding <50mL in hemorrhoidectomy). The capacity of existing aspiration materials is fixed, and frequent changes during the operation interrupt the surgical procedure, prolong the anesthesia time, and increase medical risks.

[0006] 3. Traditional absorbent materials have weak liquid retention capabilities, and when subjected to pressure, the internal liquid is easily drawn back to the skin surface, causing cross-contamination and secondary infection in the surgical area.

[0007] Therefore, there is an urgent need for a body fluid management device that is adapted to the dynamic surgical environment of the lithotomy position, can achieve continuous and stable adsorption, large capacity expansion, and unidirectional anti-backflow. Utility Model Content

[0008] In view of this, the present invention proposes a liquid absorption pad to solve the problem of easy slippage of the liquid absorption component.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A liquid-absorbing pad adapted for lithotomy surgery includes: a liquid-retaining pad; a liquid-absorbing assembly disposed on the liquid-retaining pad, the liquid-absorbing assembly comprising a hydrophilic surface layer, a flow-guiding layer, and a liquid-absorbing core stacked sequentially from top to bottom; and a waterproof layer covering the bottom surface of the liquid-absorbing core; the side edges of the waterproof layer extend upward and cover the side surfaces of the flow-guiding layer and the liquid-absorbing core, and are connected to the edge of the hydrophilic surface layer; the bottom surface of the waterproof layer is fixed to the corresponding area in the middle of the upper surface of the liquid-retaining pad by a detachable adhesive structure.

[0011] To better achieve the above technical solution, a cavity is further provided between the front end face of the liquid-absorbing core and the front sidewall of the waterproof layer, and a liquid guide tube is provided through the front end face of the waterproof layer.

[0012] Furthermore, the liquid guide tube is a silicone flexible tube.

[0013] Furthermore, the hydrophilic surface layer is made of non-woven fabric.

[0014] Furthermore, the guide layer is made of non-woven fabric, which has guide grooves extending in the front-back direction at intervals along the left-right direction.

[0015] Furthermore, the liquid-absorbing core is made of fluff pulp.

[0016] Furthermore, the detachable adhesive structure is a double-sided adhesive, and the bottom surface of the detachable adhesive structure is provided with release paper.

[0017] Furthermore, the liquid-separating pad is an isosceles trapezoidal structure, with the upper base of the isosceles trapezoid being 40cm-50cm long, the lower base being 60cm-70cm long, and the height being 50cm-60cm.

[0018] Furthermore, the length and width of the liquid aspiration component are both 30cm-40cm.

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a liquid absorption pad. By setting a detachable adhesive structure, the integral structure consisting of the liquid absorption component and the waterproof layer can be fixed on the liquid-separating pad. This prevents the liquid absorption component from detaching from the liquid-separating pad due to the increased weight of the liquid absorption component, allowing the liquid absorption component to absorb liquid normally and ensuring the continuity and stability of liquid absorption during surgery.

[0021] This utility model discloses a liquid absorbent pad, in which a cavity is formed between the front end face of the absorbent core and the front side wall of the waterproof layer. A liquid guide tube is provided through the front end face of the waterproof layer. The liquid guide tube can guide the liquid accumulated at the front end of the absorbent core out in a directional manner, forming a temporary liquid storage space with the cavity, reducing the liquid pressure at the front end of the absorbent core, and avoiding liquid backflow caused by local saturation. Attached Figure Description

[0022] Figure 1 This is a top view of a liquid absorption pad according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Side view;

[0024] Figure 3 yes Figure 2 Internal structure diagram;

[0025] Figure label:

[0026] Liquid barrier 10, hydrophilic surface layer 20, flow guiding layer 30, liquid absorbent core 40, waterproof layer 50, liquid guiding tube 60, double-sided adhesive 70. Detailed Implementation

[0027] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Identical components are indicated by the same reference numerals.

[0028] Please see Figures 1 to 3 This utility model discloses a liquid absorbent pad adapted for lithotomy surgery, which includes: a liquid-retaining pad 10, a liquid-absorbing component, and a waterproof layer 50.

[0029] Specifically, the integrated structure consisting of the liquid-absorbing component and the waterproof layer 50 is positioned above the liquid-retaining pad 10. The liquid-absorbing component includes a hydrophilic surface layer 20, a flow-guiding layer 30, and a liquid-absorbing core 40, stacked sequentially from top to bottom. The waterproof layer 50 covers the bottom surface of the liquid-absorbing core 40, and its side edges extend upwards to cover the sides of the flow-guiding layer 30 and the liquid-absorbing core 40, connecting with the edge of the hydrophilic surface layer 20. The bottom surface of the waterproof layer 50 is fixed to the corresponding area in the middle of the upper surface of the liquid-retaining pad 10 via a detachable adhesive structure. Through this structure, the waterproof layer 50 and the edge of the hydrophilic surface layer 20 form a closed cavity, effectively preventing liquid leakage from the side of the liquid-absorbing component. Simultaneously, the detachable adhesive structure allows for convenient assembly, disassembly, and positioning of the liquid-absorbing component and the liquid-retaining pad 10.

[0030] In this embodiment of the liquid-absorbing pad, the liquid-retaining pad 10 is laid at the foot of the operating table, with no more than one-third of the pad extending beyond the foot of the table and hanging down naturally. A portion of the pad 10 rests under the patient's torso. A detachable adhesive structure secures the absorbent component and waterproof layer 50 to the central area of ​​the pad 10. The absorbent component and waterproof layer 50 partially extend beyond the foot of the table. Disinfectant generated before surgery and bodily fluids generated during surgery directly enter the pad 10 and are absorbed. By using a detachable adhesive structure, the absorbent component and waterproof layer 50 can be fixed to the pad 10, preventing the absorbent component from detaching from the pad 10 due to increased weight. This ensures normal absorbency and maintains the continuity and stability of liquid absorption during surgery.

[0031] In an embodiment of this invention, a cavity is formed between the front end face of the absorbent core 40 and the front sidewall of the waterproof layer 50. A liquid guide tube 60 passes through the front end face of the waterproof layer 50, and the length of the cavity is no more than 5 cm. The liquid guide tube 60 can directionally guide the liquid accumulated at the front end of the absorbent core 40 out, forming a temporary liquid storage space with the cavity, reducing the liquid pressure at the front end of the absorbent core 40, and avoiding liquid backflow caused by local saturation.

[0032] To ensure the stability of the aspirating core 40, the hydrophilic surface layer 20, the diversion layer 30, the aspirating core 40, and the waterproof layer 50 are fixed with sutures to prevent displacement of the diversion layer 30 and the aspirating core 40. This ensures that each functional layer maintains a stable relative position during use, maintaining high efficiency in liquid absorption. The fluid guide tube 60 is a silicone tube with a groove at its exposed end, facilitating quick docking with an external collection device during surgeries such as transurethral resection of the prostate (TURP) to achieve targeted collection and centralized treatment of body fluids, improving the convenience of surgical waste management.

[0033] In this embodiment of the invention, both the hydrophilic surface layer 20 and the flow guiding layer 30 are made of non-woven fabric. The non-woven fabric of the flow guiding layer 30 has guide grooves extending in the front-back direction at intervals along the left-right direction. The non-woven fabric of the hydrophilic surface layer 20 has rapid hydrophilic properties, allowing liquid to quickly penetrate into the lower layer. The guide groove structure of the flow guiding layer 30 guides the liquid to diffuse along the grooves to both sides, increasing the liquid distribution area on the surface of the absorbent core 40. This prevents liquid concentration, which could lead to local saturation of the absorbent core 40, preventing further absorption or side leakage, thereby improving overall absorption efficiency and capacity. The absorbent core 40 is made of fluff pulp, and its loose, porous structure provides ample liquid storage space. Combined with the diffusion effect of the flow guiding layer 30, it achieves efficient absorption and retention of surgical waste fluid.

[0034] In this embodiment of the invention, the detachable adhesive structure is double-sided adhesive 70. The bottom surface of the double-sided adhesive 70 has release paper. During use, the release paper is removed to adhere the entire structure, consisting of the absorbent component and the waterproof layer 50, to the fluid-retaining pad 10. The double-sided adhesive 70 ensures that the absorbent component remains stably attached to the fluid-retaining pad 10 during surgery, preventing displacement due to changes in patient position or fluid weight. It also facilitates quick disassembly and replacement after surgery, meeting the need for convenient use of medical supplies.

[0035] In this embodiment of the invention, the fluid-absorbing pad 10 is an isosceles trapezoid with an upper base length of 40cm-50cm, a lower base length of 60cm-70cm, and a height of 50cm-60cm; the length and width of the fluid-absorbing component are both 30cm-40cm. This specification meets the size requirements of the lithotomy operating table, and the size of the fluid-absorbing component matches the central area of ​​the fluid-absorbing pad 10, ensuring that the core absorption area precisely corresponds to the surgical site, achieving centralized absorption and treatment of liquids such as disinfectant and blood, and meeting the actual needs of clinical surgery.

[0036] The technical solution of this utility model has been described in detail above with reference to specific embodiments. The specific embodiments described are used to help understand the concept of this utility model. Derivations and modifications made by those skilled in the art based on the specific embodiments of this utility model also fall within the protection scope of this utility model.

Claims

1. A liquid absorbent pad adapted for lithotomy position surgery, characterized in that, include: Liquid separator (10); A liquid-absorbing assembly disposed on a liquid-separating pad (10) comprises a hydrophilic surface layer (20), a flow guiding layer (30), and a liquid-absorbing core (40) stacked sequentially from top to bottom; And a waterproof layer (50) covering the bottom surface of the absorbent core (40); the side edge of the waterproof layer (50) extends upward and covers the side of the flow guiding layer (30) and the absorbent core (40), and is connected to the edge of the hydrophilic surface layer (20); The bottom surface of the waterproof layer (50) is fixed to the corresponding area in the middle of the upper surface of the liquid-proof pad (10) by a detachable adhesive structure.

2. The liquid absorbent pad according to claim 1, characterized in that, There is a cavity between the front end face of the liquid-absorbing core (40) and the front side wall of the waterproof layer (50), and a liquid guide tube (60) is provided through the front end face of the waterproof layer (50).

3. A liquid absorbent pad according to claim 2, characterized in that, The liquid guide tube (60) is a silicone hose.

4. The liquid absorbent pad according to claim 1, characterized in that, The hydrophilic surface layer (20) is made of non-woven fabric.

5. A liquid absorbent pad according to claim 1, characterized in that, The guide layer (30) is made of non-woven fabric, and the non-woven fabric has guide grooves that extend in the front-back direction at intervals along the left-right direction.

6. A liquid absorbent pad according to claim 1, characterized in that, The absorbent core (40) is made of fluff pulp.

7. A liquid absorbent pad according to claim 1, characterized in that, The detachable adhesive structure is a double-sided adhesive (70), and the bottom surface of the detachable adhesive structure is provided with release paper.

8. A liquid absorbent pad according to claim 1, characterized in that, The liquid-separating pad (10) is an isosceles trapezoidal structure with an upper base length of 40cm-50cm, a lower base length of 60cm-70cm, and a height of 50cm-60cm.

9. A liquid absorbent pad according to claim 8, characterized in that, The length and width of the liquid aspiration component are both 30cm-40cm.

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