Surgical membrane for brain surgery
By designing a neurosurgical membrane with a hollow structure in the non-woven fabric drape, a PU waterproof membrane, and absorbent strips, the problems of large skin preparation area and seepage management during fixation are solved. It provides transparent fixation and seepage collection, and is suitable for patients with adhesive allergies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO CHUANGQI MEDICAL SUPPLIES CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-26
AI Technical Summary
Existing surgical membranes for neurosurgery require full brain preparation during fixation, which affects the patient's appearance and causes pain for patients with adhesive allergies. They are also difficult to effectively absorb exudate.
A neurosurgical membrane is designed, which uses a non-woven fabric drape with a hollow opening in the middle, combined with a PU waterproof membrane and absorbent strips, a liquid collection bag design, and strong adhesive strips with microporous structure between the adhesive layer and the release paper layer to ensure fixation effect and transparency.
It achieves reduced skin preparation area in a fixed sterile environment, absorbs and collects exudate, avoids skin tearing, and is suitable for patients with adhesive allergies.
Smart Images
Figure CN224269434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical supplies, specifically a surgical membrane for neurosurgical procedures. Background Technology
[0002] In neurosurgery, surgical membranes serve as crucial sterile barrier materials, primarily used to protect surgical incisions, secure sterile drapes, and prevent bacterial migration and fluid contamination. Brain tissue is extremely sensitive to bacterial infection; surgical membranes effectively isolate bacteria (such as Staphylococcus aureus) from the skin and hair follicles, reducing the risk of postoperative meningitis and incision infection. Furthermore, since neurosurgery is generally lengthy, lasting 6-8 hours in craniotomies, surgical membranes provide stable fixation of sterile drapes, preventing intraoperative displacement and contamination. Additionally, some fluid leakage is likely during surgery and requires timely absorption and cleaning. Current techniques, to ensure stable fixation of the surgical membrane to the patient's head, often involve completely covering the adhesive layer with adhesive. This requires full brain shaving, affecting the patient's appearance, and can cause significant discomfort for patients allergic to adhesives. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a surgical membrane for neurosurgery. This surgical membrane has a reasonable structural design, can absorb exudate in a timely manner, and reduces the area of skin preparation for the patient while ensuring fixation.
[0004] To address the problems of existing technologies, this utility model discloses a surgical membrane for neurosurgical procedures, comprising a backing layer, a non-woven fabric drape disposed on the inner side of the backing layer, the non-woven fabric drape having an opening in the middle and being a hollow structure, a PU waterproof membrane disposed at the bottom of the non-woven fabric drape, a PU waterproof membrane disposed at the bottom of the opening in the middle of the non-woven fabric drape, an absorbent strip disposed on the non-woven fabric drape, a collection bag connected to the absorbent strip facing the outer edge of the non-woven fabric drape, an adhesive layer disposed at the bottom of the PU waterproof membrane, a release paper layer disposed at the bottom of the adhesive layer, and a strong adhesive strip disposed between the adhesive layer and the release paper layer.
[0005] Preferably, the PU waterproof membrane is a microporous PU waterproof membrane.
[0006] Preferably, the PU waterproof membrane and the non-woven fabric drape are tightly bonded together.
[0007] Preferably, the strong adhesive strips are spaced apart at the bottom of the PU waterproof membrane.
[0008] Preferably, the absorbent strips are spaced apart.
[0009] Preferably, the strong adhesive strip is positioned outside the opening in the middle of the nonwoven fabric drape and is made of a microporous adhesive.
[0010] The beneficial effects of this utility model are as follows: 1. An opening in the middle of the non-woven fabric drape creates a hollow structure, exposing the PU waterproof membrane at the bottom of the drape. During use, this membrane is applied and fixed to the surgical site, and its transparent structure facilitates operation by medical staff. 2. The PU waterproof membrane prevents seepage, ensuring that all seepage overflows above the membrane. Absorbent strips on the non-woven fabric drape absorb fluids generated during surgery, allowing them to gradually flow into a collection bag connected to the strips. 3. Strong adhesive strips are spaced between the adhesive layer and the release paper layer, and these strips are spaced at the bottom of the PU waterproof membrane. These strips are made of microporous adhesive and are located outside the opening in the middle of the non-woven fabric drape, not obstructing the transparent view of the opening. Their primary purpose is to secure areas where skin preparation is not required. These areas have hair growth and require strong fixation to ensure stability. The microporous structure and discontinuous spacing ensure that the skin is not excessively torn during removal. Attached Figure Description
[0011] Figure 1 This is a cross-sectional schematic diagram of the present invention;
[0012] Figure 2 This is a schematic diagram of the structure of the non-woven fabric towel in this utility model;
[0013] Figure 3 This is a schematic diagram showing the positional arrangement of the strong adhesive strips in this utility model;
[0014] Figure 4 This is a schematic diagram of the release paper layer in this utility model.
[0015] Figure label:
[0016] 1. Backing layer; 2. Non-woven fabric lining; 3. PU waterproof membrane; 4. Absorbent strip; 5. Liquid collection bag; 6. Adhesive layer; 7. Release paper layer; 8. Strong adhesive strip; 9. Opening. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.
[0018] like Figure 1As shown, a surgical membrane for neurosurgical procedures includes a backing layer 1, a non-woven fabric drape 2 disposed on the inner side of the backing layer 1, the non-woven fabric drape 2 having an opening 9 in the middle and being a hollow structure, a PU waterproof membrane 3 disposed at the bottom of the non-woven fabric drape 2, the PU waterproof membrane 3 being disposed at the bottom of the opening 9 in the middle of the non-woven fabric drape 2, an absorbent strip 4 disposed on the non-woven fabric drape 2, a collection bag 5 connected to the absorbent strip 4 facing the outer edge of the non-woven fabric drape 2, an adhesive layer 6 disposed at the bottom of the PU waterproof membrane 3, a release paper layer 7 disposed at the bottom of the adhesive layer 6, and a strong adhesive strip 8 disposed between the adhesive layer 6 and the release paper layer 7.
[0019] In this embodiment, the opening 9 is designed as a circular structure, and the PU waterproof membrane 3 is a microporous PU waterproof membrane 3, which is tightly bonded to the non-woven fabric drape 2. Only the PU waterproof membrane 3 is exposed at the opening 9; its material is transparent and covers the surgical site. Its diameter is generally between 3cm and 15cm, varying depending on the surgical site. The backing layer 1 ensures a sterile environment for the non-woven fabric drape 2 and the PU waterproof membrane 3; it can be removed when surgery is required.
[0020] like Figure 2 As shown, absorbent strips 4 are spaced apart, with four strips on the non-woven fabric sheet 2 arranged at 90° angles to each other, facilitating folding and storage in the care kit. A collection bag 5 is located behind the absorbent strips 4, allowing the absorbed liquid to be slowly collected in the collection bag 5, preventing overflow.
[0021] like Figure 3 As shown, the strong adhesive strips 8 are spaced apart at the bottom of the PU waterproof membrane 3. The strong adhesive strips 8 are positioned outside the opening 9 in the middle of the non-woven fabric drape 2 and are made of microporous adhesive. Microporous adhesive refers to adhesive products with tiny pores, which gives the adhesive good breathability and provides good fixation and removal when directly applied to hair. In this embodiment, adjacent strong adhesive strips 8 are spaced 60° apart, and six strong adhesive strips 8 are provided. Obviously, different numbers of strong adhesive strips 8 can be used depending on the actual situation.
[0022] like Figure 4 As shown, the release paper layer 7 has a split structure, and the center and surrounding areas can be torn apart independently, making it convenient for medical staff to fix and adjust the paper in different areas.
[0023] When using it, first peel off the release paper in the center position to fix the PU waterproof membrane 3 to the area where surgery is needed. Then adjust the remaining parts, peel off the release paper in the four-axis position, fix the remaining PU waterproof membrane 3 with the adhesive layer 6, and fix the strong adhesive strip 8 to achieve the fixation of the non-woven fabric drape 2. Then peel off the backing layer to expose the PU waterproof membrane 3 to the air, and then the surgery can be performed.
[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A surgical membrane for neurosurgery, comprising a backing layer, characterized in that: A non-woven fabric lining is provided on the inner side of the backing layer. The non-woven fabric lining has an opening in the middle and is a hollow structure. A PU waterproof membrane is provided at the bottom of the non-woven fabric lining. A water-absorbing strip is provided on the non-woven fabric lining. A liquid collection bag facing the outer edge of the non-woven fabric lining is connected to the water-absorbing strip. An adhesive layer is provided at the bottom of the PU waterproof membrane. A release paper layer is provided at the bottom of the adhesive layer. A strong adhesive strip is provided between the adhesive layer and the release paper layer.
2. The surgical membrane for neurosurgery according to claim 1, characterized in that: The PU waterproof membrane is a microporous PU waterproof membrane.
3. The surgical membrane for neurosurgery according to claim 1, characterized in that: The PU waterproof membrane and the non-woven fabric drape are tightly bonded together.
4. The surgical membrane for neurosurgery according to claim 1, characterized in that: The strong adhesive strips are spaced apart at the bottom of the PU waterproof membrane.
5. The surgical membrane for neurosurgery according to claim 1, characterized in that: The absorbent strips are spaced apart.
6. The surgical membrane for neurosurgery according to claim 1, characterized in that: The strong adhesive strip is positioned outside the opening in the middle of the nonwoven fabric drape and is made of a microporous adhesive.