Patent US6004296A successfully refreshed from Google Patents.
US6004296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockable safety shield assembly for a prefillable syringe
Assignee: Becton Dickinson France SA
•
Filing: 1997-09-30
•
Granted: 1999-12-21
•
Expires: 2017-09-30
Abstract
Abstract A lockable safety shield assembly for a prefillable syringe is provided. The design of the lockable safety shield assembly enhances pharmaceutical manufacturers' ease of assembling the various components as part of its filling or processing of the prefillable syringes in normal practice, while at the same time minimizes difficulties in mating parts made from different materials. A tube is placed around the outside surface of the syringe barrel and affixed thereto. A collar is provided on the tube adjacent the distal end of the syringe barrel. A safety shield is axially slidable over the tube between a retracted position, wherein the distal end of the piercing element associated with the prefillable syringe is exposed, and an extended position, wherein the safety shield is locked to the collar to protectively cover the distal end of the piercing element. The safety shield includes locking structure configured so that the shield can be easily fitted over the tube. The locking structure includes at least one deflectable arm provided on the body of the shield. The deflectable arm includes a proximal end deflectable towards the interior of the shield. A stop member is provided on the interior of a shield in spaced relation to the proximal end of the deflectable arm. A ring is axially slidable over the shield to deflect the arm towards the interior of the shield to activate the locking structure. The safety shield is slid distally by an end user such that the collar is lockingly retained between the stop member and the proximal end of the deflectable arm. The collar, the stop member, and the deflectable arm may be configured to provide tactile as well as audible indication of locking to the end user.
Inventors
- 👤 Hubert Jansen
- 👤 Claude Imbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:27
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3205; A61M5/321; A61M5/3243; A61M5/3129; A61M5/3135; A61M2005/3103; A61M2005/3107; A61M2005/3109; A61M5/3245; A61M2005/3247; A61M2205/00; A61M2205/58; A61M2205/581; A61M2205/582; A61M5/3202; A61M5/3271; A61M5/50; A61M5/5013; A61M5/502
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
277 words
A medical device, comprising: a barrel having proximal and distal ends; a tube secured about the barrel, the tube having a collar positioned adjacent the distal end of the barrel, the collar having an edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal end of the barrel is exposed, and an extended position, wherein the distal end of the barrel is covered, the shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface; user-activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall and a proximal end deflectable towards the interior of the shield, said at least one arm having a free position wherein the arm is substantially coplanar with the circumferential sidewall of the shield, and a locking position, wherein the arm is deflected towards the interior of said shield so that the proximal end is positioned towards the interior of the shield, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield to define a gap between the stop member and the proximal end of the deflectable arm, and a ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned against said at least one deflectable arm to secure the arm in the locking position.
Claim 2
Dependent Claim
277 words
A medical device, comprising: a barrel having proximal and distal ends; a tube secured about the barrel, the tube having a collar positioned adjacent the distal end of the barrel, the collar having an edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal end of the barrel is exposed, and an extended position, wherein the distal end of the barrel is covered, the shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface; user-activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall and a proximal end deflectable towards the interior of the shield, said at least one arm having a free position wherein the arm is substantially coplanar with the circumferential sidewall of the shield, and a locking position, wherein the arm is deflected towards the interior of said shield so that the proximal end is positioned towards the interior of the shield, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield to define a gap between the stop member and the proximal end of the deflectable arm, and a ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned against said at least one deflectable arm to secure the arm in the locking position.
Claim 3
Dependent Claim
47 words
The medical device of claim 1, wherein the barrel includes a piercing element at its distal end, wherein the piercing element is exposed when the shield is in the retracted position, and wherein the piercing element is protectively covered when the shield is in the extended position.
Claim 4
Dependent Claim
30 words
The medical device of claim 1, wherein a flange is provided adjacent the proximal end of the barrel, the tube secured to the barrel at the flange of the barrel.
Claim 5
Dependent Claim
44 words
The medical device of claim 1, wherein said ring is secured to the distal end of the shield by a user-severable connection in the first position, wherein an end user may sever the user-severable connection to axially slide the ring to the second position.
Claim 6
Dependent Claim
39 words
The medical device of claim 1, wherein the stop member includes a proximally-facing sloped surface and a distally facing stop surface, the gap defined between said stop surface and the proximal end of said at least one deflectable arm.
Claim 7
Dependent Claim
20 words
The medical device of claim 1, wherein said deflectable arm comprises structure for retaining the ring in the second position.
Claim 8
Dependent Claim
38 words
The medical device of claim 6, wherein the structure for retaining comprises a distal abutment and a proximal abutment spaced from said distal abutment, wherein said ring is retained in the space between said proximal and distal abutments.
Claim 9
Dependent Claim
49 words
The medical device of claim 7, wherein the space between said proximal and distal abutments is raised from the surface of said at least one deflectable arm, wherein said space is substantially co-planar with the circumferential sidewall of the shield when said deflectable arm is in the locking position.
Claim 10
Dependent Claim
33 words
The medical device of claim 7, wherein said distal abutment includes a distally-facing sloped surface, wherein said ring is urged over the distally-facing sloped surface of the distal abutment into said second position.
Claim 11
Dependent Claim
41 words
The medical device of claim 1, wherein said shield further comprises a second stop located on the interior surface of the shield adjacent the distal end, said second stop engageable with the collar when said shield is in the retracted position.
Claim 12
Dependent Claim
46 words
The medical device of claim 10, further comprising a third stop located on the interior surface of the shield proximally of the second stop, wherein the edge of the collar is retained between the second and third stops when said shield is in the retracted position.
Claim 13
Dependent Claim
18 words
The medical device of claim 1, wherein a locking tooth is provided on the edge of the collar.
Claim 14
Dependent Claim
29 words
The medical device of claim 12, wherein the proximal end of the at least one deflectable arm is oriented for locking engagement with the locking tooth of the collar.
Claim 15
Dependent Claim
431 words
A medical device, comprising: a barrel having proximal and distal ends; a piercing element extending from the distal end of the barrel and having a distal tip; a flange provided adjacent the proximal end of the barrel; a tube mounted about the barrel and secured to the flange, the tube having a collar positioned adjacent the distal end of the barrel, the collar having a side portion and a circumferential edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal tip of the piercing element is exposed, and an extended position, wherein the distal tip of the piercing element is covered, said shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface, the shield including user activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall, a proximal end deflectable towards the interior of the shield, and an outside surface therebetween, the proximal end of the deflectable arm defining an edge for engaging said collar, said at least one arm having a free position wherein the outside surface of said arm is substantially coplanar with the circumferential wall of the shield, and a locking position, wherein said arm is deflected towards the interior of said shield so that said edge is positioned towards the interior of the shield, said deflectable arm including a pair of abutments on the outside surface spaced apart from one another, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield to define a gap between the stop member and the proximal end of the deflectable arm, and a ring retained to the shield by a user-severable connection, said ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned between the pair of abutments on said at least one deflectable arm to secure the arm in the locking position, wherein the ring is slid proximally along the shield until the ring is positioned between the pair of abutments, and the shield thereafter urged distally so that the circumferential edge of the collar enters into the gap defined between the stop member and the proximal end of the arm so that the edge of the arm engages the collar.
Claim 16
Dependent Claim
431 words
A medical device, comprising: a barrel having proximal and distal ends; a piercing element extending from the distal end of the barrel and having a distal tip; a flange provided adjacent the proximal end of the barrel; a tube mounted about the barrel and secured to the flange, the tube having a collar positioned adjacent the distal end of the barrel, the collar having a side portion and a circumferential edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal tip of the piercing element is exposed, and an extended position, wherein the distal tip of the piercing element is covered, said shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface, the shield including user activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall, a proximal end deflectable towards the interior of the shield, and an outside surface therebetween, the proximal end of the deflectable arm defining an edge for engaging said collar, said at least one arm having a free position wherein the outside surface of said arm is substantially coplanar with the circumferential wall of the shield, and a locking position, wherein said arm is deflected towards the interior of said shield so that said edge is positioned towards the interior of the shield, said deflectable arm including a pair of abutments on the outside surface spaced apart from one another, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield to define a gap between the stop member and the proximal end of the deflectable arm, and a ring retained to the shield by a user-severable connection, said ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned between the pair of abutments on said at least one deflectable arm to secure the arm in the locking position, wherein the ring is slid proximally along the shield until the ring is positioned between the pair of abutments, and the shield thereafter urged distally so that the circumferential edge of the collar enters into the gap defined between the stop member and the proximal end of the arm so that the edge of the arm engages the collar.
Claim 17
Dependent Claim
19 words
The medical device of claim 14, wherein a locking tooth is provided on the circumferential edge of the collar.
Claim 18
Dependent Claim
24 words
The medical device of claim 15, wherein the edge of the arm is oriented for locking engagement with the locking tooth of the collar.
Claim 19
Dependent Claim
11 words
The medical device of claim 16, wherein the edge is canted.
Claim 20
Dependent Claim
32 words
The medical device of claim 14, wherein said stop member includes a proximally-facing sloped surface, wherein said shield is slidable proximally over said collar to place the shield in said retracted position.
Claim 21
Dependent Claim
30 words
The medical device of claim 14, further comprising at least one slit in said circumferential sidewall intermediate the proximal end of the shield the proximal edge of the deflectable arm.
Claim 22
Dependent Claim
51 words
The medical device of claim 14, wherein the circumferential sidewall defines a thickness between the inside surface and the outside surface, wherein the thickness of the sidewall adjacent the proximal end of the shield is less than the thickness of the sidewall intermediate the proximal and distal ends of the shield.
Claim 23
Dependent Claim
51 words
The medical device of claim 14, wherein the pair of abutments on the at least one deflectable arm includes a proximal abutment and a distal abutment, the distal abutment including a distally-facing sloped surface to facilitate passage of the ring over the distal abutment for placement between the pair of abutments.
Claim 24
Dependent Claim
40 words
The medical device of claim 14, wherein the edge of said at least one deflectable arm is shaped so that it is oriented parallel to the side portion of said collar when the deflectable arm is in said locked position.
Claim 25
Dependent Claim
45 words
The medical device of claim 14, wherein said shield further comprises a second stop located on the interior surface of the shield adjacent the distal end, said second stop engageable with the side portion of the collar when said shield is in the retracted position.
Claim 26
Dependent Claim
43 words
The medical device of claim 23, further comprising a third stop located on the interior surface of the shield proximally of the second stop, wherein the collar is retained between the second and third stops when said shield is in the retracted position.
Claim 27
Dependent Claim
33 words
The medical device of claim 14, wherein said third stop comprises a proximally-facing sloped surface to facilitate passage of ring over said third stop as the shield is positioned towards its retracted position.
Claim 28
Dependent Claim
49 words
The medical device of claim 21, wherein the space between said proximal and distal abutments is raised from the surface of said at least one deflectable arm, wherein said space is substantially co-planar with the circumferential sidewall of the shield when said deflectable arm is in the locking position.
Claim 29
Dependent Claim
39 words
The medical device of claim 26, wherein the space between said proximal and distal abutments is sloped, wherein the space is substantially co-planar with the circumferential sidewall of the shield when said deflectable arm is in the locking position.
Claim 30
Dependent Claim
28 words
The medical device of claim 14, wherein the user-severable connection comprises one or more thinned sections of material between said ring and the distal end of the shield.
Claim 31
Dependent Claim
28 words
The medical device of claim 4, wherein the user-severable connection comprises one or more thinned sections of material between said ring and the distal end of the shield.
Claim 32
Dependent Claim
378 words
A medical device, comprising: a barrel having proximal and distal ends; a piercing element extending from the distal end of the barrel and having a distal tip; a tube attached about the outside surface of the barrel, the tube having a collar positioned adjacent the distal end of the barrel, the collar having an edge and a locking tooth defined at the edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal tip of the piercing element is exposed, and an extended position, wherein the distal tip of the piercing element is covered, the shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface; user-activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall and a canted proximal end deflectable towards the interior of the shield for locking engagement with the locking tooth of the collar, the at least one arm having a free position wherein the arm is substantially coplanar with the circumferential sidewall of the shield, and a locking position, wherein the arm is deflected towards the interior of said shield so that the proximal end is positioned towards the interior of the shield, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield and having a canted stop surface, the stop member placed on the shield to define a gap between the canted stop surface and the canted proximal end of the deflectable arm, and a ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned against said at least one deflectable arm to secure the arm in the locking position, wherein after the ring has been placed in the second position, the shield is urged distally so that the locking tooth enters into the gap between the canted stop surface and the canted proximal end of the arm to lock the tooth in the gap.
Claim 33
Dependent Claim
378 words
A medical device, comprising: a barrel having proximal and distal ends; a piercing element extending from the distal end of the barrel and having a distal tip; a tube attached about the outside surface of the barrel, the tube having a collar positioned adjacent the distal end of the barrel, the collar having an edge and a locking tooth defined at the edge; and a shield mounted about said tube and axially movable between a retracted position, wherein the distal tip of the piercing element is exposed, and an extended position, wherein the distal tip of the piercing element is covered, the shield having a proximal end, a distal end, and a circumferential sidewall therebetween, the circumferential sidewall having an outside surface and an inside surface; user-activatable locking means to secure the shield in the extended position, the user activatable locking means comprising at least one deflectable arm having a distal end mounted with the circumferential sidewall and a canted proximal end deflectable towards the interior of the shield for locking engagement with the locking tooth of the collar, the at least one arm having a free position wherein the arm is substantially coplanar with the circumferential sidewall of the shield, and a locking position, wherein the arm is deflected towards the interior of said shield so that the proximal end is positioned towards the interior of the shield, at least one stop member mounted to the interior surface of the shield adjacent the proximal end of the shield and having a canted stop surface, the stop member placed on the shield to define a gap between the canted stop surface and the canted proximal end of the deflectable arm, and a ring axially slidable around the outside surface of the shield between a first position wherein the ring is spaced away from the at least one deflectable arm and a second position wherein the ring is positioned against said at least one deflectable arm to secure the arm in the locking position, wherein after the ring has been placed in the second position, the shield is urged distally so that the locking tooth enters into the gap between the canted stop surface and the canted proximal end of the arm to lock the tooth in the gap.
Claim 34
Dependent Claim
19 words
The medical device of claim 30, wherein an audible indication is produced as the locking tooth enters the gap.
Claim 35
Dependent Claim
19 words
The medical device of claim 30, wherein a tactile indication is produced as the locking tooth enters the gap.
References Cited (Backward Citations)
US34045A
Cited
US5792107A
Cited
US4425120A
Cited
US4573976A
Cited
US5601535A
Cited
US5084030A
Cited
US4631057A
Cited
US4743233A
Cited
US4801295A
Cited
US4723943A
Cited
US4737144A
Cited
US5024660A
Cited
US4758231A
Cited
US4747837A
Cited
USRE34045E
Cited
US4840185A
Cited
US4923445A
Cited
US5067945A
Cited
US5059185A
Cited
US4871355A
Cited
US5217437A
Cited
US5169392A
Cited
US5053018A
Cited
US4947863A
Cited
US4900310A
Cited
US4927018A
Cited
US4985021A
Cited
US5141500A
Cited
US5843041A
Cited
US5019051A
Cited
US5800404A
Cited
US5057087A
Cited
US4998924A
Cited
US4998920A
Cited
US4994045A
Cited
US5624400A
Cited
US5437647A
Cited
US5501672A
Cited
US5616134A
Cited
US5356392A
Cited
US5108378A
Cited
US5279581A
Cited
US5312365A
Cited
US5045066A
Cited
US5066277A
Cited
US5380296A
Cited
US5057086A
Cited
US5226894A
Cited
US5188614A
Cited
US5147303A
Cited
US5197953A
Cited
US5137521A
Cited
US5800403A
Cited
US5201708A
Cited
US5417660A
Cited
US5242420A
Cited
US5300040A
Cited
US5674203A
Cited
US5304149A
Cited
US5308332A
Cited
US5735823A
Cited
US5352208A
Cited
US5385555A
Cited
US5342309A
Cited
US5344407A
Cited
US5879339A
Cited
US5458577A
Cited
US5358491A
Cited
US5843034A
Cited
US5385557A
Cited
US5562624A
Cited
US5439450A
Cited
US5611782A
Cited
US5769827A
Cited
US5658254A
Cited
EP0740942A1
Cited
US5562626A
Cited
US5647849A
Cited
US5873047A
Cited
US5817064A
Cited
US5853390A
Cited
US5791122A
Cited
US5713871A
Cited
US5769822A
Cited
US5681292A
Cited
US5800395A
Cited
US5776107A
Cited
US5733264A
Cited
EP0864335A2
Cited
US5868713A
Cited
US5882342A
Cited
US5810775A
Cited
US5797885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-20 | 2003-06-21 | 2003-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-20 | 2007-06-21 | 2007-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-20 | 2011-06-21 | 2011-12-21 | $7700.00 | Window Closed / Lapsed |