US4211588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a vented piercing device for intravenous administration sets
Assignee: B Braun Medical Inc
•
Filing: 1978-05-10
•
Granted: 1980-07-08
•
Expires: 1998-05-10
Abstract
Abstract A method of manufacturing a vented piercing device having a piercing spike which is considerably smaller in diameter than a standard device. The smaller diameter permits use of the device with small volume parenteral containers normally punctured with bottle needles. The method of assembly includes formation of a piercing device in two separate portions which are then welded together.
Inventors
- 👤 Kenneth C. Raines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:53
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/12; B29C66/128; B29C66/1282; B29C66/12821; B29C66/1284; B29C66/13; B29C66/131; B29C66/302; B29C66/3022; B29C66/30223; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; A61M2005/1623; B29L; B29L2031/00; B29L2031/753; B29L2031/7544
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
137 words
A method of manufacturing a vented piercing device for use with small volume parenteral containers, the method including the steps of: injection moldng a first portion of the piercing device; forming a fluid passage and an air passage in said first portion; injection molding a second portion of the piercing device including a step of forming a pair of separate passages one of which is part ofa fluid path for discharging parenteral fluid from a small volume container and the other of which is part of an air path for venting such small volume container, said first portion passages being positioned to fluidly connect with said second portion passages when said portions are connected together; and welding said first portion to said second portion to form an integral vented piercing device for use with small volume containers.
Claim 2
Independent Claim
137 words
A method of manufacturing a vented piercing device for use with small volume parenteral containers, the method including the steps of: injection moldng a first portion of the piercing device; forming a fluid passage and an air passage in said first portion; injection molding a second portion of the piercing device including a step of forming a pair of separate passages one of which is part ofa fluid path for discharging parenteral fluid from a small volume container and the other of which is part of an air path for venting such small volume container, said first portion passages being positioned to fluidly connect with said second portion passages when said portions are connected together; and welding said first portion to said second portion to form an integral vented piercing device for use with small volume containers.
Claim 3
Dependent Claim
45 words
The method of claim 1, further including a step of forming an energy director system on said first portion, said energy director system including a triangular rib on said first portion with the apex of said triangular rib being adapted to contact said second portion.
Claim 4
Dependent Claim
15 words
The method of claim 2, wherein said welding step includes ultrasonically welding said portions together.
Claim 5
Dependent Claim
15 words
The method of claim 2, wherein said welding step includes solvent welding said portions together.
Claim 6
Dependent Claim
30 words
The method of claim 1, wherein said second portion includes a piercing spike having a length of less than 1 inch and an outer diameter of less than 0.2 inches.
Claim 7
Dependent Claim
24 words
The method of claim 5, wherein said passages have a length of about 0.5 inches and a diameter of less than about 0.05 inches.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein said passages are formed using core pins.
Claim 9
Dependent Claim
43 words
The method of claim 1, further including forming a boss on said second portion and a counterbore on said first portion in positions so that said boss is received in said counterbore when said portions are welded together to form a shear joint.
Claim 10
Dependent Claim
28 words
The method of claim 1, further including forming a clamping rib on said second portion which is sized to receive said first portion in a jam fitting relationship.
Claim 11
Dependent Claim
19 words
The method of claim 1, wherein said first portion has a top section which is egg-shaped in transverse cross-section.
Claim 12
Dependent Claim
46 words
The method of claim 1 wherein said fluid and air paths each includes a projection on said first portion extending away from said second portion when said portions are connected together, and said welding fluidly interconnects said second portion fluid and air paths with said projections.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |