Multifunctional bra for effectively fixing negative pressure drainage device after breast cancer operation
By designing a multifunctional bra, the problems of unstable fixation and insufficient breathability of traditional bras after breast cancer surgery are solved, the drainage tube is firmly fixed and breathable, and the patient's care convenience and comfort are improved.
Patent Information
- Application Number
- CN202510659888.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-10-10
AI Technical Summary
Traditional breast cancer surgery bras lack effective fixation of the negative pressure drainage device, resulting in a high risk of drainage tube falling off. The existing backpack design increases the burden on patients and lacks breathability and wound pressurization functions.
A multifunctional bra is designed, which includes drainage tube fixing buckles on the left and right sides, connection belt design and cloth bag optimization, and uses specific materials and transparent windows to ensure the stable fixation, breathability and visibility of the drainage device.
It achieves stable fixation of the drainage tube, improves the patient's comfort and nursing convenience, reduces the risk of tube removal, and has ventilation and wound pressurization functions.
Smart Images

Figure CN120753850A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical auxiliary equipment, and is particularly designed for breast cancer patients after surgery. The multifunctional bra integrates negative pressure drainage device fixation, ventilation, and wound pressurization to meet the patients' needs for postoperative wound care and carrying negative pressure drainage devices. Background Art
[0002] Traditional breast cancer postoperative bras are only used to prevent subcutaneous fluid accumulation. They lack effective fixation for negative pressure drainage devices, which can lead to the risk of tube dislodgment. Literature reports suggest tube dislodgment rates as high as 18%-25%. Clinically, medical staff have designed dedicated backpacks to store negative pressure drainage devices, but these backpacks require a separate external cloth bag, which increases the burden on patients and lacks breathability and wound pressure relief. Therefore, a multifunctional, specialized bra is needed that can secure negative pressure drainage devices, provide ventilation, apply wound pressure, and facilitate postoperative care. Summary of the Invention
[0003] Removable negative pressure drainage bottle fixing device: Bra main body design: 3 rows of drainage tube fixing buckles are designed on the left and right sides, with a spacing of 2cm, which are suitable for drainage tubes of different lengths. They have been verified by traction tests to ensure stable fixation.
[0004] 2. Design of the bra-to-bag connection strap: ① 2cm wide, 20cm long; ② Leave an 8cm margin on each side of the bag for easy connection. ③ Invisible buckles are sewn on the front and back of the strap to ensure a secure and aesthetically pleasing connection.
[0005] 3. Square bag optimization: Dimensions: ① 10cm x 15cm (expandable to 20cm) ② Bag base 7cm x 10cm, suitable for 50-500ml drainage devices. ③ A 10cm x 10cm transparent window is designed on the front of the bag for easy observation of the drainage fluid.
[0006] Material: The main body of the cloth bag is made of a mixture of 56.5% nylon and 43.6% spandex, and the observation window is made of silk cotton cloud yarn, which takes into account both breathability and visibility. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 A partial enlarged schematic diagram of the connection between the bra and the negative pressure drainage device is shown. The markings in the figure include: ① Compression bra with body protection; ② Adjustable, re-attachable shoulder straps; ③ Bra closure; ④ Re-attachable Velcro; ⑤ Transparent drainage bag observation window, corresponding to the transparent window on the cloth bag, allowing medical staff to observe changes in drainage fluid color and volume at any time; ⑥ Negative pressure drainage bottle placement; ⑦ Drainage tube connection strap; ⑧ Drainage tube fixing buckle. This design is structurally sound and highly functional, suitable for daily care and activities of postoperative patients. Figure 2 A structural diagram of the front of the bra is shown, illustrating its overall wearing effect and back support design. Figure 3 A schematic diagram of the bra's side structure is shown, focusing on the arrangement of the drainage tube fixing buckle and the cloth bag connecting strap. Figure 4 A schematic diagram of the front structure of a backpack for storing a pressure bra and an external negative pressure drainage device is shown. The following items are marked on the diagram: ① The connection point with the bra; ② The invisible buckle of the cloth bag connection belt; ③ The main part of the cloth bag; ④ The transparent window made of silk matte, so that the drainage fluid can be observed at any time.
Claims
1. A multifunctional bra for fixing a negative pressure drainage device after breast cancer surgery, characterized in that: include: The bra body (1) is made of elastic breathable fabric, and is provided with multiple rows of drainage tube fixing buckles (8) on the left and right sides, with the spacing between each row of fixing buckles being 2 cm, for adapting to drainage tubes of different lengths; A detachable square cloth bag (4) is connected to the bra main body (1) via a connecting belt (7), with invisible buckles (1) provided at both ends of the connecting belt (7), and a transparent observation window (5) provided on the front of the cloth bag (4) for real-time monitoring of the state of drainage fluid; The inner dimensions of the cloth bag (4) are adapted to a 50-500ml drainage device, with a bottom dimension of 7cm×10cm and an overall dimension of 10cm×15cm that can be expanded to 20cm; The split design of the bra main body (1) includes side Velcro (3) and adjustable shoulder straps (2) for adjusting tightness and evenly distributing pressure.
2. The multifunctional bra according to claim 1, characterized in that: The drainage tube fixing buckles (8) are provided in three rows on the left and right sides of the bra body (1), and their fixing stability is verified by a pulling test.
3. The multifunctional bra according to claim 1, characterized in that: The material of the cloth bag (4) is a mixed fabric of 56.5% nylon and 43.5% spandex, and the material of the transparent observation window (5) is silk cotton cloud yarn.
4. The multifunctional bra according to claim 1, characterized in that: The width of the connecting belt (7) is 2 cm, the total length is 20 cm, and an 8 cm margin is reserved on each side of the cloth bag (4) to ensure a secure connection.
5. The multifunctional bra according to claim 1, characterized in that: The applicable chest circumference range of the bra main body (1) is 68cm to 115cm, covering sizes from S to XXXL.
6. The multifunctional bra according to claim 1, characterized in that: The upper end of the cloth bag (4) is provided with a square hole (3) for inserting the connecting belt (7) and fixing it to the bra body (1).
7. The multifunctional bra according to claim 1, characterized in that: The wearing process of the bra main body (1) includes: adjusting the tightness through the side Velcro (3), adjusting the cloth bag (4) to the level of the anterior superior iliac spine and fixing the drainage bottle.
8. The multifunctional bra according to claim 1, characterized in that: The cloth bag (4) can be disassembled and machine washed with water temperature not exceeding 30°C. The bra body (1) is recommended to be hand washed and dried in the shade.