Patent US5827293A successfully refreshed from Google Patents.
US5827293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subcutaneous insertion device
Assignee: Individual
•
Filing: 1996-05-13
•
Granted: 1998-10-27
•
Expires: 2016-05-13
Abstract
Abstract An apparatus for the insertion of sterile implants comprising a cartridge having a body with a central bore. The body comprises at its proximal end a retention shoulder or hub adapted for retention by an insertion tool. The body further comprises a closure plug received in the proximal end of the bore that seals the bore and that has an exposed surface to engage a plunger rod from an insertion tool. The body still further comprises a sealed distal tip of decreasing diameter from the outer surface of the body that terminates in a point adapted for penetrating a pre-existing body orifice or for piercing tissue during insertion into a patient. The tip is frangible into a plurality of segments under pressure exerted by the distal end of the implant, allowing the implant to emerge from the cartridge.
Inventors
- 👤 James B. Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:51
CPC Classifications
A; A61; A61M; A61M37/00; A61M37/0069
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
164 words
An apparatus for insertion of implants comprising: a substantially cylindrical cartridge having a body with a central bore receiving a substantially cylindrical timed release implant, said cartridge including a proximal end having a retention shoulder extending radially from an outer surface of the body, said retention shoulder adapted for retention in an insertion tool; a closure plug received in the bore at the proximal end of the cartridge, said plug sealing the bore and having an exposed surface to engage a plunger rod in said insertion tool, said plunger rod urging the plug through the bore to engage a proximal end of the implant and further urging the implant through the bore; a distal tip of decreasing diameter from the outer surface of the body, terminating in a point adapted for piercing tissue during insertion into a patient, said tip frangible into a plurality of segments under pressure from a distal end of the implant, thereby allowing the implant to emerge from the cartridge.
Claim 2
Independent Claim
164 words
An apparatus for insertion of implants comprising: a substantially cylindrical cartridge having a body with a central bore receiving a substantially cylindrical timed release implant, said cartridge including a proximal end having a retention shoulder extending radially from an outer surface of the body, said retention shoulder adapted for retention in an insertion tool; a closure plug received in the bore at the proximal end of the cartridge, said plug sealing the bore and having an exposed surface to engage a plunger rod in said insertion tool, said plunger rod urging the plug through the bore to engage a proximal end of the implant and further urging the implant through the bore; a distal tip of decreasing diameter from the outer surface of the body, terminating in a point adapted for piercing tissue during insertion into a patient, said tip frangible into a plurality of segments under pressure from a distal end of the implant, thereby allowing the implant to emerge from the cartridge.
Claim 3
Dependent Claim
31 words
An apparatus for insertion of implants as defined in claim 1 wherein the distal tip includes means for inducing stress fracture of the tip to create the plurality of frangible segments.
Claim 4
Dependent Claim
63 words
An apparatus for insertion of implants as defined in claim 1 further comprising a fracture plug intermediate the distal end of the implant and the tip of the cartridge, said fracture plug contacted by the distal end of the implant when urged through the bore, said fracture plug adapted to concentrate force from the implant on the tip for fracturing of the tip.
Claim 5
Dependent Claim
47 words
An apparatus for insertion of implants as defined in claim 2 wherein the means for inducing stress fracture comprises a plurality of grooves on an internal surface of the tip said grooves extending substantially from the body of the cartridge to the pointed end of the tip.
Claim 6
Dependent Claim
17 words
An apparatus for insertion of implants as defined in claim 4 wherein the grooves are circular cross-section.
Claim 7
Dependent Claim
19 words
An apparatus for insertion of implants as defined in claim 4 wherein the grooves are V shaped in cross-section.
Claim 8
Dependent Claim
46 words
An apparatus for insertion of implants as defined in claim 2 wherein the means for inducing stress fracture comprises a plurality of grooves on an external surface of the tip said grooves extending substantially from the body of the cartridge to the point of the tip.
Claim 9
Dependent Claim
18 words
An apparatus for insertion of implants as defined in claim 7 wherein the grooves are cylindrical in cross-section.
Claim 10
Dependent Claim
38 words
An apparatus for insertion of implants as defined in claim 1 further comprising reinforcement means extending from the cartridge body to the segments of the tip to avoid separation of the segments subsequent to fracture of the tip.
Claim 11
Dependent Claim
38 words
An apparatus for insertion of implants as defined in claim 9 wherein the reinforcement means comprise a plurality of fibers integrally molded with and extending longitudinally through the distal end of the cartridge body into adjacent tip segments.
Claim 12
Dependent Claim
39 words
An apparatus for insertion of implants as defined in claim 9 wherein the reinforcing means comprise a plurality of strips of reinforcing material embedded in circumferentially spaced grooves extending into an internal surface of the cartridge body and tip.
Claim 13
Dependent Claim
39 words
An apparatus for insertion of implants as defined in claim 9 wherein the reinforcing means comprise a plurality of strips of reinforcing material embedded in circumferentially spaced grooves extending into an external surface of the cartridge body and tip.
Claim 14
Dependent Claim
34 words
An apparatus for insertion of implants as defined in claim 9 wherein the reinforcing means comprise a plurality of strips of reinforcing material circumferentially spaced and bonded to an exterior surface of the tip.
Claim 15
Dependent Claim
37 words
An apparatus for insertion of implants as defined in claim 1 wherein the cartridge incorporates visible markings on an external surface of the cartridge body to allow a determination of depth of penetration of the cartridge tip.
Claim 16
Independent Claim
174 words
An apparatus for insertion of implants comprising: a substantially cylindrical cartridge having a body with a central bore receiving a substantially cylindrical implant, said cartridge including: a proximal end having a retention hub extending radially from an outer surface of the body, said retention hub incorporating a threaded attachment adapted to be received on a mating thread on an insertion tool; a closure plug received in the bore at the proximal end of the cartridge said plug sealing the bore and having an ex posed surface to engage a plunger rod in said insertion tool, said plunger rod urging the plug through the bore to engage a proximal end of the implant and further urging the implant through the bore; and a distal tip of decreasing diameter from the outer surface of the body terminating in a point adapted for piercing tissue during insertion into a patient and said tip frangible into a plurality of segments under pressure from a distal end of the implant thereby allowing the implant to emerge from the cartridge.
Claim 17
Independent Claim
174 words
An apparatus for insertion of implants comprising: a substantially cylindrical cartridge having a body with a central bore receiving a substantially cylindrical implant, said cartridge including: a proximal end having a retention hub extending radially from an outer surface of the body, said retention hub incorporating a threaded attachment adapted to be received on a mating thread on an insertion tool; a closure plug received in the bore at the proximal end of the cartridge said plug sealing the bore and having an ex posed surface to engage a plunger rod in said insertion tool, said plunger rod urging the plug through the bore to engage a proximal end of the implant and further urging the implant through the bore; and a distal tip of decreasing diameter from the outer surface of the body terminating in a point adapted for piercing tissue during insertion into a patient and said tip frangible into a plurality of segments under pressure from a distal end of the implant thereby allowing the implant to emerge from the cartridge.
References Cited (Backward Citations)
US2513014A
Cited
US3744493A
Cited
US4086914A
Cited
US4661098A
Cited
US4685904A
Cited
US4601699A
Cited
US4657421A
Cited
US4994028A
Cited
US4863439A
Cited
US4966478A
Cited
US5019053A
Cited
US5120316A
Cited
US5123905A
Cited
US5273532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-10-26 | 2002-04-27 | 2002-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-26 | 2006-04-27 | 2006-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-26 | 2010-04-27 | 2010-10-27 | $7700.00 | Window Closed / Lapsed |