流体分配组件和流体分配设备
By using microfluidic chip components and sealing designs in the fluid distribution device, the stability problem of the spray assembly under high and low pressure fluctuations was solved, achieving uniform atomization and stable spraying of the fluid, thus improving the spraying effect and drug inhalation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SINGMED MEDICAL DEVICE SCI & TECH LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fluid distribution devices face the problem of high and low peak pressure fluctuations in spray components, resulting in insufficient stability and reliability, which affects long-term performance.
By employing microfluidic chip components and placing seals between the chip components and the support, combined with filters and a multi-channel design, vortices are formed to improve stability and spray effect.
It improves the stability and reliability of the fluid distribution components, ensures the uniformity and continuity of the spray, reduces the risk of leakage, and enhances drug inhalation efficiency.
Smart Images
Figure CN224506034U_ABST
Abstract
Claims
1. A fluid dispensing assembly (210) characterized by, The fluid distribution assembly (210) includes: A chip assembly (10) having a fluid inlet and a fluid outlet; A chip base (202) includes a first receiving cavity (2021) and a second spray nozzle (2022) in fluid communication with the first receiving cavity (2021), wherein the chip assembly (10) is at least partially received in the first receiving cavity (2021), and the fluid outlet of the chip assembly (10) is in fluid communication with the second spray nozzle (2022); A support member (204) includes a second receiving cavity (2041) and a second fluid channel (2042) in fluid communication with the second receiving cavity (2041), wherein the chip substrate (202) is received in the second receiving cavity (2041), and the fluid inlet of the chip assembly (10) is in fluid communication with the second fluid channel (2042); and The second seal (207) is positioned in the second receiving cavity (2041) and compressed between the chip base (202) and the support (204).
2. The fluid dispensing assembly (210) of claim 1, wherein, A first abutment surface (2023) is formed at the bottom of the first receiving cavity (2021) of the chip base (202), and the first abutment surface (2023) is used to limit the chip assembly (10).
3. The fluid dispensing assembly (210) of claim 2, wherein, The fluid distribution assembly (210) further includes a first seal (203) disposed between the first contact surface (2023) and the chip assembly (10).
4. The fluid dispensing assembly (210) of claim 1, wherein, The fluid distribution assembly (210) further includes a filter (205), wherein the filter (205) is disposed between the chip assembly (10) and the support (204) for filtering fluid flowing from the second fluid channel (2042) to the chip assembly (10), and wherein the second receiving cavity (2041) includes a recess (241) recessed into the second fluid channel (2042), the recess (241) accommodating at least a portion of the filter (205).
5. The fluid dispensing assembly (210) of claim 4, wherein, The second seal (207) is disposed around the filter (205) and is interference-fitted with the filter (205).
6. The fluid dispensing assembly (210) of claim 5, wherein, The inner wall of the support member (204) has a second abutment surface (2043) for limiting the second seal member (207).
7. The fluid dispensing assembly (210) of claim 6, wherein, The recess (241) is recessed from the second abutment surface (2043) toward the second fluid channel (2042).
8. The fluid dispensing assembly (210) according to any one of claims 1 to 7, characterized in that, The support (204) also includes a sealing groove (2044) disposed around the second fluid channel (2042) for receiving a third seal (208).
9. The fluid dispensing assembly (210) according to any one of claims 4 to 7, characterized in that, The chip assembly (10) is interference-fitted with the filter element (205).
10. The fluid distribution assembly (210) according to any one of claims 1 to 7, characterized in that, The outer peripheral surface of the chip base (202) is interference-fitted with the inner peripheral surface of the support member (204).
11. The fluid dispensing assembly (210) according to any one of claims 1 to 7, characterized in that, The top surface of the chip base (202) is flush with the top surface of the support (204).
12. The fluid dispensing assembly (210) according to any one of claims 1 to 7, characterized in that The inner diameter of the second spray nozzle (2022) of the chip base (202) is configured such that the inner diameter gradually increases from the direction close to the chip assembly (10) toward the direction away from the chip assembly (10).
13. The fluid dispensing assembly (210) according to any one of claims 1 to 7, characterized in that, The chip assembly (10) includes: A first chip (101) includes at least two first fluid channels (104), the at least two first fluid channels (104) defining at least two side surface grooves (1014) recessed from the circumferential side surface of the first chip (101), and the first fluid channels (104) extending on a first main surface (1011) of the first chip (101); and A second chip (102) is disposed on the first chip (101). The second chip (102) includes a through hole (1021) which communicates with the first fluid channel (104) to allow fluid to be ejected outward through the through hole (1021).
14. The fluid dispensing assembly (210) of claim 13, wherein, The first chip (101) defines a collection cavity (103) which is in fluid communication with the at least two first fluid channels (104) to allow fluid flowing into the collection cavity (103) via the at least two first fluid channels (104) to converge into a vortex.
15. A fluid dispensing apparatus characterized by, The fluid distribution device includes: The housing (201) has a first spray nozzle (2011). Liquid storage component (301), which is disposed within the housing (201); and The fluid distribution assembly (210) according to any one of claims 1 to 14, wherein the fluid distribution assembly (210) is installed in the housing (201), the second fluid passage (2042) of the fluid distribution assembly (210) is in fluid communication with the liquid storage component (301), and the second spray port (2022) of the fluid distribution assembly (210) is aligned with the first spray port (2011) of the housing (201).