一种PICC置管用防水护套
By designing a waterproof sheath with an outer ring and an inner retainer ring, the problem of the catheter getting wet after PICC placement is solved, improving sealing and comfort, and reducing the risk of infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN PEOPLES HOSPITAL (CENT HOSPITAL AFFILIATED TO JINGCHU INST OF TECH)
- Filing Date
- 2025-03-31
- Publication Date
- 2026-07-17
AI Technical Summary
After PICC placement, the exposed catheter is easily wetted, leading to infection risks, and existing waterproofing measures are inconvenient to use.
A waterproof sleeve was designed, comprising an outer ring, an inner retaining ring, and an elastic waterproof sleeve. The elastic waterproof sleeve has an adjustable opening size, and a seal is achieved through the cooperation of the inner retaining ring and the outer ring, preventing water droplets from wetting the tube during washing and care.
It effectively seals the PICC insertion site, preventing water droplet contact, improving user comfort and sealing, and reducing the risk of infection.
Smart Images

Figure CN224505672U_ABST
Abstract
Claims
1. A waterproof sheath for a PICC line, characterized by It includes an outer ring (1), an inner retaining ring (2) and an elastic waterproof sleeve (3). The elastic waterproof sleeve (3) is an olive-shaped structure with a large diameter in the middle and a small diameter at both ends. Both ends of the elastic waterproof sleeve (3) are provided with a set of annular tear indentations (4). The top end of the elastic waterproof sleeve (3) is detachably snapped into the outer ring (1) through the inner retaining ring (2).
2. The waterproof sheath for PICC catheter of claim 1, wherein The diameter of the top end of the elastic waterproof sleeve (3) is larger than the diameter of the bottom end.
3. The waterproof sheath for PICC catheter of claim 1, wherein The spacing between two adjacent annular tear indentations (4) is 8-10 mm, and a size mark is provided on one side of the annular tear indentation (4).
4. The waterproof sheath for PICC catheterization according to any one of claims 1 to 3, characterized in that The elastic waterproof sleeve (3) is a transparent silicone sleeve.
5. The waterproof sheath for PICC catheter of claim 1, wherein The inner retaining ring (2) has an annular retaining platform (5) on its outer side. The inner bottom end of the outer ring (1) has an inner open ring mounting groove, and an annular locking groove that cooperates with the annular retaining platform (5) is provided in the inner open ring mounting groove. The inner retaining ring (2) can be detachably inserted into the inner bottom end of the outer ring (1). The elastic waterproof sleeve (3) is located between the inner retaining ring (2) and the outer ring (1), and is locked by the inner retaining ring (2) and the outer ring (1).
6. The waterproof sheath for PICC catheter of claim 5, wherein An opening hole is provided on the outer ring (1), and an opening button (6) is provided in the opening hole. One end of the opening button (6) extends into the inner side of the outer ring (1) and is located on one side of the inner ring (2).
7. The waterproof sheath for PICC catheter of claim 1, wherein The top end of the outer ring (1) is provided with a top cover (7), and the bottom end of the outer ring (1) is provided with a bottom cover (8). The top cover (7) and the bottom cover (8) are movably inserted into the outer ring (1).
8. The waterproof sheath for PICC catheter of claim 1, wherein Locking protrusions (9) are provided on the outer walls of the top and bottom ends of the outer ring (1), and locking grooves (10) that cooperate with the locking protrusions (9) are provided on the inner sides of the top cover (7) and the bottom cover (8).