Patent US6072038A successfully refreshed from Google Patents.
Patent US4601699A successfully refreshed from Google Patents.
US4601699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implant device
Assignee: International Minerals and Chemical Corp
•
Filing: 1984-12-03
•
Granted: 1986-07-22
•
Expires: 2004-12-03
Abstract
Abstract A low cost implant device suitable for manufacture by high speed injection molding techniques is described. The implant device can be fabricated and assembled using only two parts, a plunger assembly and a plunger assembly housing. The plunger assembly housing is provided with a socket-like chamber for receiving a disposable flanged cartridge containing a solid medicament in pellet form. The cartridge also can be made by injection molding. The device is used for subcutaneously implanting the solid pellet medicament in an animal.
Inventors
- 👤 Kenny K. Crain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:35
CPC Classifications
A; A61; A61M; A61M37/00; A61M37/0069
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
243 words
A device for subcutaneously implanting a solid pellet in an animal comprising in combination (1) a molded plunger assembly housing of unitary construction, said housing including (a) a first tubular section with an enlarged bore having (i) a user-proximal rear end opening with substantially the same cross section as said enlarged bore and (ii) an ejector rod guide positioned near the user-distal front end, and (b) a second tubular section with a reduced bore coupled to the user-distal front end of said first tubular section; (2) a hollow needle embedded permanently in said second tubular section; (3) a plunger assembly axially slideable in said housing, said assembly including (a) a molded user-actuated plunger of unitary construction dimensioned for slideable movement in said enlarged bore, extending through the opening at the user-proximal rear end of said first tubular section, and (b) an ejector rod dimensioned for slideable movement in said hollow needle and embedded permanently in the user-distal front end of said plunger, said ejector rod having a length sufficient to extend into the ejector rod guide when the plunger assembly is in its rear-most position and to extend through the hollow needle when the plunger assembly is in its forward-most position, and (4) a socket-like cartridge receiving chamber positioned at the user-distal front end of said first tubular section and extending into said second tubular section having a flange receiving portion and a tubular receiving portion for retaining a flanged, solid pellet-containing cartridge.
Claim 2
Independent Claim
243 words
A device for subcutaneously implanting a solid pellet in an animal comprising in combination (1) a molded plunger assembly housing of unitary construction, said housing including (a) a first tubular section with an enlarged bore having (i) a user-proximal rear end opening with substantially the same cross section as said enlarged bore and (ii) an ejector rod guide positioned near the user-distal front end, and (b) a second tubular section with a reduced bore coupled to the user-distal front end of said first tubular section; (2) a hollow needle embedded permanently in said second tubular section; (3) a plunger assembly axially slideable in said housing, said assembly including (a) a molded user-actuated plunger of unitary construction dimensioned for slideable movement in said enlarged bore, extending through the opening at the user-proximal rear end of said first tubular section, and (b) an ejector rod dimensioned for slideable movement in said hollow needle and embedded permanently in the user-distal front end of said plunger, said ejector rod having a length sufficient to extend into the ejector rod guide when the plunger assembly is in its rear-most position and to extend through the hollow needle when the plunger assembly is in its forward-most position, and (4) a socket-like cartridge receiving chamber positioned at the user-distal front end of said first tubular section and extending into said second tubular section having a flange receiving portion and a tubular receiving portion for retaining a flanged, solid pellet-containing cartridge.
Claim 3
Dependent Claim
312 words
A flanged, solid pellet-containing cartridge comprising a planar section with a substantially perpendicularly aligned tubular section extending outwardly therefrom, said tubular section having a sufficient cross-section to contain a solid pellet medicament, said planar section having an opening through which a pellet can be inserted into the tubular section and means for sealing said opening, the planar section constituting a flange for said tubular section and having a taper which terminates with a locking means, said taper facilitating insertion of the cartridge into an implant device of the type including (1) a molded plunger assembly housing of unitary construction, said housing including (a) a first tubular section with an enlarged bore having (i) a user-proximal rear end opening with substantially the same cross section as said enlarged bore and (ii) an ejector rod guide positioned near the user-distal front end, and (b) a second tubular section with a reduced bore coupled to the user-distal front end of said first tubular section; (2) a hollow needle embedded permanently in said second tubular section; (3) a plunger assembly axially slideable in said housing, said assembly including (a) a molded user-actuated plunger of unitary construction dimensioned for slideable movement in said enlarged bore, extending through the opening at the user-proximal rear end of said first tubular section, and (b) an ejector rod dimensioned for slideable movement in said hollow needle and embedded permannently in the user-distal front end of said plunger, said ejector rod having a length sufficient to extend into the ejector rod guide when the plunger assembly is in its rear-most position and to extend through the hollow needle when the plunger assembly is in its forward-most position, and (4) a socket-like cartridge receiving chamber positioned at the user-distal front end of said first tubular section and extending into said second tubular section having a flange receiving portion and a tubular receiving portion.
Claim 4
Dependent Claim
312 words
A flanged, solid pellet-containing cartridge comprising a planar section with a substantially perpendicularly aligned tubular section extending outwardly therefrom, said tubular section having a sufficient cross-section to contain a solid pellet medicament, said planar section having an opening through which a pellet can be inserted into the tubular section and means for sealing said opening, the planar section constituting a flange for said tubular section and having a taper which terminates with a locking means, said taper facilitating insertion of the cartridge into an implant device of the type including (1) a molded plunger assembly housing of unitary construction, said housing including (a) a first tubular section with an enlarged bore having (i) a user-proximal rear end opening with substantially the same cross section as said enlarged bore and (ii) an ejector rod guide positioned near the user-distal front end, and (b) a second tubular section with a reduced bore coupled to the user-distal front end of said first tubular section; (2) a hollow needle embedded permanently in said second tubular section; (3) a plunger assembly axially slideable in said housing, said assembly including (a) a molded user-actuated plunger of unitary construction dimensioned for slideable movement in said enlarged bore, extending through the opening at the user-proximal rear end of said first tubular section, and (b) an ejector rod dimensioned for slideable movement in said hollow needle and embedded permannently in the user-distal front end of said plunger, said ejector rod having a length sufficient to extend into the ejector rod guide when the plunger assembly is in its rear-most position and to extend through the hollow needle when the plunger assembly is in its forward-most position, and (4) a socket-like cartridge receiving chamber positioned at the user-distal front end of said first tubular section and extending into said second tubular section having a flange receiving portion and a tubular receiving portion.
Claim 5
Dependent Claim
26 words
The device of claim 1 wherein said molded housing is fabricated from a plastic material selected from the group consisting of nylon, polycarbonate, polyethylene, and polypropylene.
Claim 6
Dependent Claim
26 words
The device of claim 1 wherein said molded plunger is fabricated from a plastic material selected from the group consisting of nylon, polycarbonate, polyethylene and polypropylene.
References Cited (Backward Citations)
US2502909A
Cited
US2601852A
Cited
US3016895A
Cited
US3744493A
Cited
US4086914A
Cited
US4473369A
Cited
US4531938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |