Surgical drape based on composite water absorption layer
By adopting a composite water-absorbing layer structure in the surgical hole towel, including a laminated structure of hydrophilic PSB layer, dust-free paper layer and MDPE layer, the problem of poor water absorption is solved, and more efficient blood absorption and stability is achieved, reducing the Risk of cross infection.
Patent Information
- Application Number
- CN202420994280.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-09
Smart Images
Figure CN222310080U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of surgical drapes, and in particular relates to a surgical drape based on a composite water-absorbing layer. Background Art
[0002] Surgical drapes require enhanced absorbent material in the surgical opening area to fully absorb the large amount of body fluids and blood generated during surgery.
[0003] Existing surgical drapes generally use SMS non-woven fabrics or spunlace non-woven fabrics as the main water-absorbing material. Both materials have undergone triple-proof treatment, making them anti-alcohol, anti-plasma and anti-static. At the same time, they also have good waterproof function, that is, the water absorption rate is low. When encountering a large amount of bleeding in surgery, it is unable to quickly and completely absorb the flowing blood, causing blood to flow onto the operating table and cause contamination, and even cause cross infection to the wound. Utility Model Content
[0004] The utility model aims to provide a surgical drape based on a composite water-absorbing layer to solve the problem of poor water absorption of the surgical drape.
[0005] The utility model is a surgical drape based on a composite water-absorbing layer, which is realized as follows:
[0006] A surgical drape based on a composite water-absorbing layer comprises a base layer, and a barrier layer, a second water-absorbing layer and a first water-absorbing layer which are sequentially laminated and composited on the base layer;
[0007] The first water-absorbing layer is a hydrophilic PSB layer, the second water-absorbing layer is a dust-free paper layer, the barrier layer is an MDPE layer, and the base layer is a hydrophobic PSB layer.
[0008] Furthermore, the mass per unit area of the first water-absorbing layer is 20-30 g / ㎡.
[0009] Furthermore, the mass per unit area of the first water-absorbing layer is 25 g / ㎡.
[0010] Furthermore, the mass per unit area of the second water-absorbing layer is 40-60 g / ㎡.
[0011] Furthermore, the mass per unit area of the second water-absorbing layer is 50 g / ㎡.
[0012] Furthermore, the mass per unit area of the barrier layer is 30-50 g / ㎡.
[0013] Furthermore, the mass per unit area of the barrier layer is 40 g / ㎡.
[0014] Furthermore, the mass per unit area of the base layer is 20-30 g / ㎡.
[0015] Furthermore, the mass per unit area of the base layer is 25 g / m2.
[0016] Furthermore, two adjacent layers are fixed by glue.
[0017] After adopting the above technical solution, the utility model has the following beneficial effects:
[0018] (1) The two water-absorbing layers of the utility model adopt the combination of a hydrophilic PSB layer and a dust-free paper layer, and the hydrophilic PSB layer is placed on the dust-free paper layer, which can not only increase the water absorption of the surgical drape, but also effectively improve the stability of the surgical drape fabric, making it not easy to be damaged, thereby avoiding cross infection;
[0019] (2) The base layer of the utility model is the layer that is in direct contact with the patient, and it adopts a hydrophobic PSB layer, which is softer, skin-friendly and more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] Figure 1 It is a schematic diagram of a surgical drape based on a composite water-absorbing layer according to a preferred embodiment of the utility model;
[0022] In the figure: base layer 1, barrier layer 2, second water absorption layer 3, first water absorption layer 4, glue layer 5. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] like Figure 1As shown, a surgical drape based on a composite water-absorbent layer includes a base layer 1, and a barrier layer 2, a second water-absorbent layer 3 and a first water-absorbent layer 4 which are sequentially laminated and composited on the base layer 1; the first water-absorbent layer 4 is a hydrophilic PSB layer, the second water-absorbent layer 3 is a dust-free paper layer, the barrier layer 2 is an MDPE layer, and the base layer 1 is a hydrophobic PSB layer.
[0026] Specifically, in the surgical drape, the barrier layer 2 is compounded on the base layer 1 , the second water-absorbing layer 3 is compounded on the barrier layer 2 , and the first water-absorbing layer 4 is compounded on the second water-absorbing layer 3 .
[0027] Among them, PSB refers to polyester olefin spunbond nonwoven fabric, the hydrophilic PSB layer is a polyester olefin spunbond nonwoven fabric layer that has been hydrophilically treated, the hydrophobic PSB layer is a polyester olefin spunbond nonwoven fabric layer that has been hydrophobically treated; and the MDPE layer is a medium-density polyethylene layer.
[0028] In this embodiment, the density of each layer is fixed, and its mass per unit area is proportional to its thickness, that is, the greater the mass per unit area, the thicker the thickness.
[0029] In order to ensure the water absorption rate and improve the stability of the fabric, the mass per unit area of the first water absorption layer 4 is 20-30 g / ㎡.
[0030] Preferably, the mass per unit area of the first water-absorbing layer 4 is 25 g / ㎡.
[0031] Using the hydrophilic PSB layer as the top layer can effectively increase the wear resistance and stability of the surgical drape.
[0032] If the mass per unit area of the hydrophilic PSB layer is increased, the time for body fluids and blood to pass through the layer will increase, which will directly affect the water absorption efficiency; and if the mass per unit area of the hydrophilic PSB layer is reduced, the stability of the surgical drape cannot be guaranteed.
[0033] Therefore, the mass per unit area used in the hydrophilic PSB layer of the present invention is the best choice.
[0034] In order to ensure the water absorption performance of the surgical drape, the mass per unit area of the second water absorption layer 3 is 40-60 g / ㎡.
[0035] Preferably, the mass per unit area of the second water-absorbing layer 3 is 50 g / ㎡.
[0036] If the unit area mass of the dust-free paper layer is reduced, the water absorption and water absorption amount of the surgical drape cannot be guaranteed; if the unit area mass of the dust-free paper layer is increased, the thickness of the entire surgical drape will increase, which may easily affect the operation of the operation.
[0037] Therefore, the mass per unit area of the dust-free paper layer in the utility model is the best choice.
[0038] During the operation, body fluids and blood need to pass through the hydrophilic PSB layer and be absorbed in the dust-free paper layer. The hydrophilic PSB layer and the dust-free paper layer use the above unit area mass, which can ensure the wear resistance and stability of the surgical drape while also making it have excellent water absorption performance.
[0039] The barrier layer 2 is used to prevent the liquid from penetrating downwards to avoid cross infection. The unit area mass of the barrier layer 2 is 30-50g / ㎡
[0040] Preferably, the mass per unit area of the barrier layer 2 is 40 g / ㎡.
[0041] If a MDPE layer with a unit area mass of less than 40g / ㎡, such as 25g / ㎡, is used, its hydrostatic pressure is 105cmH2O, which results in insufficient water-locking performance of the barrier layer and a risk of penetration; if a MDPE layer with a unit area mass of more than 40g / ㎡, such as 60g / ㎡, is used, its hydrostatic pressure is 180cmH2O, and the barrier layer itself is very heavy, and the patient feels uncomfortable. Therefore, in this embodiment, the unit area mass of the barrier layer, i.e., the MDPE layer, is 40g / ㎡, and its hydrostatic pressure is 150cmH2O, which can ensure anti-penetration while also being lighter in weight, making it more convenient for clinical use and providing a better sense of touch.
[0042] The middle barrier layer 2 of the utility model is made of a medium-density polyethylene layer, which has a reliable cost and a high cost-performance ratio compared to other polyethylene materials.
[0043] The base layer 1 is a layer that directly contacts the human body. Through its setting, the comfort of the entire surgical drape can be increased, and it is softer and more skin-friendly. The unit area mass of the base layer 1 is 20-30g / ㎡.
[0044] Preferably, the mass per unit area of the base layer 1 is 25 g / m2.
[0045] The base layer 1 is a hydrophobic PSB layer. In addition to increasing the skin-friendly feel, it can also cooperate with the hydrophilic PSB layer on the upper surface to form a "sandwich" structure, that is, two PSB layers with the same unit area mass are placed on the upper and lower surfaces of the surgical drape fabric respectively, thereby further improving the stability and wear resistance of the surgical drape fabric, preventing it from being damaged during use, and avoiding cross infection.
[0046] In order to ensure the firmness of each layer structure, two adjacent layers are fixed by glue.
[0047] The utility model fixes each layer with glue by means of a glue spraying process, that is, a glue layer 5 is provided between two adjacent layers. This method is easy to operate and has a high cost-performance ratio.
[0048] The surgical drape disclosed by the utility model not only has excellent water absorption, but also has a stable structure, a wear-resistant surface, and is skin-friendly and comfortable for patients to use. The surgical drape fabric can be applied to the entire surgical drape or can be used alone at the periphery of the surgical drape hole, and can be selected according to needs.
[0049] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A surgical drape based on a composite water-absorbing layer, characterized in that: It comprises a base layer (1), and a barrier layer (2), a second water absorbing layer (3) and a first water absorbing layer (4) which are sequentially laminated and composited on the base layer; The first water-absorbing layer (4) is a hydrophilic PSB layer, the second water-absorbing layer (3) is a dust-free paper layer, the barrier layer (2) is an MDPE layer, and the base layer is a hydrophobic PSB layer.
2. The surgical drape based on the composite water-absorbing layer according to claim 1, characterized in that: The mass per unit area of the first water-absorbing layer (4) is 20-30 g / ㎡.
3. The surgical drape based on the composite water-absorbing layer according to claim 2, characterized in that: The mass per unit area of the first water-absorbing layer (4) is 25 g / ㎡.
4. The surgical drape based on the composite water-absorbing layer according to claim 1, characterized in that: The mass per unit area of the second water-absorbing layer (3) is 40-60 g / m2.
5. The surgical drape based on the composite water-absorbing layer according to claim 4, characterized in that: The mass per unit area of the second water-absorbing layer (3) is 50 g / m2.
6. The surgical drape based on the composite water-absorbing layer according to claim 1, characterized in that: The mass per unit area of the barrier layer (2) is 30-50 g / ㎡.
7. The surgical drape based on the composite water-absorbing layer according to claim 6, characterized in that: The mass per unit area of the barrier layer (2) is 40 g / ㎡.
8. The surgical drape based on the composite water-absorbing layer according to claim 1, characterized in that: The mass per unit area of the base layer (1) is 20-30 g / m2.
9. The surgical drape based on the composite water-absorbing layer according to claim 8, characterized in that: The mass per unit area of the base layer (1) is 25 g / m2.
10. The surgical drape based on the composite water-absorbing layer according to claim 1, characterized in that: The two adjacent layers are fixed by glue.