Hydration solutions containing volatile solutions and medical device products including the same
US-12201750-B2 · Jan 21, 2025 · US
Catheter Assemblies with Interfacial pH Controller
US2025242088A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025242088-A1 |
| Application number | US-202519071069-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 5, 2025 |
| Priority date | Nov 13, 2020 |
| Publication date | Jul 31, 2025 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Catheter assemblies including an interfacial pH controller for maintaining hydration liquid pH are provided.
First claim
Opening claim text (preview).
1 . A catheter assembly comprising: a catheter with at least a portion of the catheter having a hydrophilic surface; a sleeve associated with an interfacial pH controller and surrounding at least a section of an outer surface of the catheter; and a hydration liquid at least partially in contact with the interfacial pH controller. 2 . The catheter assembly of claim 1 , wherein the interfacial pH controller is embedded within at least one layer of the sleeve. 3 . The catheter assembly of claim 1 , wherein the interfacial pH controller is coated onto a surface of the sleeve. 4 . The catheter assembly of claim 1 , wherein the interfacial pH controller is a salt. 5 . The catheter assembly of claim 4 , wherein the solubility of the salt is less than 0.005 wt % at 25° C. in water, preferably less than 0.003 wt % at 25° C. 6 . The catheter assembly claim 4 , wherein the salt is comprised of an inorganic salt. 7 . The catheter assembly of claim 4 , wherein the salt includes an alkaline earth metal. 8 . The catheter assembly of claim 7 , wherein the alkaline earth metal is calcium or magnesium. 9 . The catheter assembly of claim 8 , wherein the alkaline earth metal is calcium. 10 . The catheter assembly of claim 4 , wherein the salt includes an anion. 11 . The catheter assembly of claim 10 , wherein the anion is carbonate or phosphate. 12 . The catheter assembly of claim 11 , wherein the anion is carbonate. 13 . The catheter assembly of claim 4 , wherein the salt is calcium carbonate. 14 . The catheter assembly of claim 8 , wherein the salt is magnesium carbonate. 15 . The catheter assembly of claim 9 , wherein the salt is calcium phosphate. 16 . The catheter assembly of claim 1 , wherein the sleeve is a film. 17 . The catheter assembly of claim 16 , wherein the film includes a polymer. 18 . The catheter assembly of claim 17 , wherein the polymer is polyethylene or polyurethane. 19 . The catheter assembly of claim 1 , wherein the pH of the hydration liquid with the interfacial pH controller is from about 4.5 to 8.0, preferably 6.0 to about 7.5. 20 . The catheter assembly of claim 1 , wherein the hydration liquid is within the sleeve and in contact with the hydrophilic surface.
Assignees
Inventors
Classifications
multi-layered, e.g. coated (coating materials A61L29/08) · CPC title
Packages specially adapted therefor (combined with means for introducing catheters, e.g. dispensers, A61M25/0113); catheter kit packages (for surgical articles A61B50/30) · CPC title
Materials for lubricating medical devices · CPC title
Inorganic materials other than carbon · CPC title
Phosphorus-containing compounds, e.g. phosphates, phosphonates · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2025242088A1 cover?
- Catheter assemblies including an interfacial pH controller for maintaining hydration liquid pH are provided.
- Who is the assignee on this patent?
- Hollister Inc
- What technology area does this patent fall under?
- Primary CPC classification A61L29/02. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Jul 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).