EP0343910A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Snap-lock fitting catheter for an implantable device
Assignee: Strato Infusaid Inc
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Filing: 1989-05-23
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Granted: —
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Expires: 2009-05-23
Abstract
Abstract The invention discloses implantable infusion device (10) having a nipple outlet (20) over which a catheter (40) is fitted. A locking sleeve (42) is slidably mounted on the catheter to expand over the nipple and engage the housing. The locking action provides a sensory indication by noise or tactile sensation that locking has been achieved. Both single and double lumen devices employ the locking sleeve.
Inventors
- 👤 Edward J. Sampson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 01:30
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/10; A61M39/12; F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; A61M39/02; A61M39/0208; A61M2039/0211; A61M2039/1027; A61M2039/1066; A61M2039/1072; Y; Y10; Y10S; Y10S128/00; Y10S128/912; Y10S285/00; Y10S285/921; Y10S604/00; Y10S604/905
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
An access device (10) for implantation comprising a housing with a reservoir (12) therein, a self-sealing septum (14) to provide subcutaneous access to said reservoir, characterized in that there is provided an outlet (20) having a nipple section (34), a catheter (40) having one end (50) slidably mounted over said nipple, and a locking sleeve (42) having a through-hole for slidably mounting onto said catheter, said locking sleeve having a series of radially expansible fingers (44) which expand over said nipple and engage said housing to provide a lock for said catheter to said housing and provide, upon engagement, a sensory indication that locking has been achieved.
Claim 2
Dependent Claim
107 words
An access device (10) for implantation comprising a housing with a reservoir (12) therein, a self-sealing septum (14) to provide subcutaneous access to said reservoir, characterized in that there is provided an outlet (20) having a nipple section (34), a catheter (40) having one end (50) slidably mounted over said nipple, and a locking sleeve (42) having a through-hole for slidably mounting onto said catheter, said locking sleeve having a series of radially expansible fingers (44) which expand over said nipple and engage said housing to provide a lock for said catheter to said housing and provide, upon engagement, a sensory indication that locking has been achieved.
Claim 3
Dependent Claim
48 words
The device of Claim 1, wherein said outlet further comprises an opening of first area (26) for receiving a first portion (24) of said nipple section and an opening at a second area (28) greater than said first area for receiving a second portion of said nipple section.
Claim 4
Dependent Claim
55 words
The device of Claim 2, wherein said first portion (24) of said nipple section further comprises an anchoring portion to adhere said nipple section of said housing, said nipple section having a flange abutting said housing in the opening of said second area (28) to prevent further insert of said nipple section into said housing.
Claim 5
Dependent Claim
35 words
The device of Claim 2, wherein said housing further comprises a shoulder section (36) of reduced area to engage outer portions of said fingers (44) when said locking fitting has engaged said nipple section (34).
Claim 6
Dependent Claim
75 words
The device of Claim 4, wherein said outer portion of said fingers (44) comprise a first outer section engaging an inside portion of said housing shoulder section (36) and a second outer section of reduced area engaging an outer portion of said shoulder, whereby said fingers are compressed inward by said second outer section of said shoulder when said locking sleeve slides over said nipple and then expand radially outward to engage said inside portion.
Claim 7
Dependent Claim
17 words
The device of Claim 1, wherein said expansible fingers (44) are disposed circumferentially around said locking sleeve.
Claim 8
Dependent Claim
16 words
The device of Claim 1, wherein said locking sleeve (42) comprises a generally cylindrical outer section.
Claim 9
Dependent Claim
17 words
The device of Claim 1, wherein said locking sleeve (42) comprises a generally tapered conical outer section.
Claim 10
Dependent Claim
24 words
The device of Claim 1, wherein said locking sleeve (42) comprises a saddle shaped outer section (43) having an annular recess to permit gripping.
Claim 11
Dependent Claim
20 words
The device of Claim 1, wherein said nipple (34) comprises an elongated barbed member (20) projecting outside of said housing.
Claim 12
Dependent Claim
51 words
The device of Claim 1, wherein the catheter (116) comprises a pair of lumens (118, 120) separated by an internal wall (122), the housing (100) comprises first and second reservoirs, first and second self-sealing septums (102, 104) and, fluid communication means (132, 134) coupling a respective lumen to a respective reservoir.
Claim 13
Dependent Claim
43 words
The device of Claim 11, wherein the nipple section (124) comprises an elongated barbed member having conduits (126, 128) coupling respective lumens (118, 120) to said fluid communication means (132, 134) and an elongation slot (130) engaging said internal wall of said catheter.
Claim 14
Dependent Claim
30 words
The device of Claim 1, wherein said outlet (20) comprises a conical wall section, said radially expansible fingers (44) being compressed as said locking member (42) slides over said nipple.
Claim 15
Dependent Claim
40 words
The device of Claim 13, wherein said conical wall section has a groove, and locking sleeve (42) having an annular shoulder engaging said groove to lock said sleeve to said housing and providing a sensory indication that locking has occurred.
References Cited (Backward Citations)
No citation records indexed.
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