一种简易抽拉式卷尺样吸氧鼻导管
By designing a simple pull-out, tape measure-like nasal cannula, and utilizing an elastic support mechanism and sliding interlocking structure, the problems of insufficient length and stability of the nasal cannula under different conditions are solved. This achieves stable, adjustable, and convenient use of the nasal cannula, improving oxygen delivery and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2025-04-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing nasal cannulas have limited lengths for use in different situations, making them unsuitable for stable use over long distances. Furthermore, longer nasal cannulas lack stability during use, leading to poor oxygen delivery or dislodgement, causing inconvenience and discomfort for patients.
A simple pull-out measuring tape-shaped oxygen inhalation nasal cannula was designed. It adopts an elastic support mechanism and a sliding and interlocking structure. The adjustable length and stable fixation of the nasal cannula are achieved through a pull-out fixing box and an extension fixing strap. It includes a contraction return spring, a sliding contact block and an interlocking mounting head to ensure that the nasal cannula can be used stably under different conditions.
This technology enables adjustable length and improved stability of the nasal cannula under different conditions, preventing it from drifting or falling off during use, thus improving oxygen delivery efficiency, ease of use, and reducing patient discomfort.
Smart Images
Figure CN224506044U_ABST
Abstract
Claims
1. A simple pull-out measuring tape-shaped oxygen nasal cannula, comprising a pull-out fixing box (1), wherein a connecting hollow rod (11) is installed on the inner surface of the pull-out fixing box (1), and an elastic support mechanism for fixing the coiled and contracted oxygen tube (3) is installed inside the connecting hollow rod (11). characterized in that The elastic support mechanism includes a contraction return spring (12), and the lower end of the contraction return spring (12) is fixedly installed inside the connecting hollow rod (11). A coiled contraction oxygen inhalation tube (3) is installed on the outer surface of the top end of the contraction return spring (12), and the coiled contraction oxygen inhalation tube (3) rotates around the outer surface of the connecting hollow rod (11). An extension fixing band (5) is installed on the back of the pull-out fixing box (1), and an elastic sliding mechanism for engaging the rotation return rod (10) is installed at the end of the extension fixing band (5).
2. The simple pull-out type oxygen inhalation nose conduit in the form of a tape measure according to claim 1, characterized in that: The elastic sliding mechanism includes a sliding connector (8), which is fixedly installed on the left outer surface of the extension fixing belt (5). A compression spring (9) is installed on the outer surface of the sliding connector (8), and the end of the compression spring (9) is fixedly installed on the upper and lower sides of the sliding connector (8).
3. The simple pull-out type oxygen inhalation nose conduit with a tape measure pattern according to claim 2, characterized in that: The outer surface of the right end of the extension fixing band (5) is equipped with a mating mounting head (6), and the upper and lower sides of the mating mounting head (6) are provided with mating grooves (7). The opening position of the mating grooves (7) corresponds to the installation position of the rotating reset rod (10), and two sets of compression springs (9) and rotating reset rods (10) are symmetrically installed about the center point of the sliding joint (8).
4. The simple pull-out type of oxygen inhalation nose conduit in the form of a tape measure as claimed in claim 1, wherein: The outer surface of the pull-out fixing box (1) is provided with a sliding inner groove (2), and the front and rear ends of the coiled and retractable oxygen inhalation tube (3) pass through the interior of the sliding inner groove (2). A sliding abutment block (4) is installed at the upper end of the pull-out fixing box (1), and the sliding abutment block (4) is slidably installed inside the pull-out fixing box (1).
5. The simple pull-out type of oxygen inhalation nasal catheter according to claim 4, wherein: The lower end of the sliding contact block (4) abuts against the outer surface of the coiled and contracted oxygen inhalation tube (3), and the connecting hollow rod (11) is a hollow design. The inner surface of the pull-out fixing box (1) contacts the top of the contraction return spring (12) to form an elastic structure, and the pull-out fixing box (1) and the connecting hollow rod (11) are an integral design.
6. The simple pull-out type oxygen inhalation nose conduit with a tape measure according to claim 5, characterized in that: The inner surface of the sliding inner groove (2) contacts the outer surface of the coiled and contracted oxygen inhalation tube (3) to form a sliding structure, and the outer surface of the pull-out fixing box (1) contacts the inner surface of the sliding contact block (4) to form a sliding structure.
7. The simple pull-out type of oxygen inhalation nasal catheter according to claim 3, wherein: The top of the compression spring (9) contacts the lower surface of the rotating reset rod (10) to form an elastic structure, and the outer surface of the mating mounting head (6) contacts the inner surface of the sliding mating head (8) to form a sliding structure.