Luer connector portion, and stent delivery system including a connector portion

• US 20040186547A1
• Filed: 05/11/2004
• Published: 09/23/2004
• Est. Priority Date: 06/19/2001
• Status: Active Grant

• Current Assignee: Angiomed GmbH & Co. Medizintechnik KG
• Original Assignee: Angiomed GmbH & Co. Medizintechnik KG
• Inventors: Vogel, Michael, Dorn, Jurgen
• Granted Patent: US 7,553,322 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence

Abstract

The present invention relates to a connector which comprises the male portion of a Luer connector, wherein the male portion is extended axially into a pressure pad having a pressure surface.

Claims

1. A connector which comprises the male portion of a Luer connector,

characterised in that

the male portion (32) is extended axially into a pressure pad (8) having a pressure surface.

2. Connector according to claim 1, characterised in that the pressure pad (8) is elastically deformable.

3. Connector according to claims 1 or 2, characterised in that the pressure pad (8) is made of silicone rubber.

4. Connector according to claim 1, characterised in that the pressure pad (80) is made of metal and the pressure surface thereof has a radially inwardly curved surface (82).

5. Connector according to any one of the preceding claims, characterised in that the pressure pad (8) is elongate and mounted co-axially at one of its ends to the connector (1), the other end providing the pressure surface.

6. Connector according to claim 5, characterised in that said one end of the pressure pad (8) is attached to a spigot (6) which is itself joined to the male portion (32), the spigot being shaped to permit passage of fluid through the connector.

7. Connector according to claim 6, characterised in that the spigot (6) is engaged with the male portion (32) of the connector by an annular cutting edge.

8. Connector according to claim 6 or 7, characterised in that the spigot (6) comprises a re-entrant surface by which the spigot (6) and pressure pad (8) are attached to each other.

9. Connector according to any one of the preceding claims, characterised in that the connector further comprises a female portion (33) of a Luer connector.

15. Device or connector according to any one of the preceding claims, characterised by a safety catch (34, 35, 37) to prevent premature or inadvertent release of the inner elongate body from the pressure pad.

16. Device or connector as claimed in claim 15 wherein the safety catch comprises a breakable pawl engageable with a toothed annulus on the housing.

17. Device or connector as claimed in claim 15 wherein the safety catch comprises a frangible portion (37), one end (34) of which is fixed to the male Luer connector and the other end (35) of which is fixed to the female Luer connector.

10. A device for passing fluid into an annular cavity between an inner elongate body (26) and an outer elongate tubular body (28), the device having a housing (2) with a distal end (24), a proximal end (12) and an off-axis end (36), the housing providing a seating at the distal end thereof for the outer elongate tubular body along an axis of the housing extending between the proximal and the distal end, the distal and off-axis ends defining respective openings (30,31) which are in fluid communication with each other, and the proximal end having a lumen (23) to enable the inner elongate body to extend from the housing both distally and proximally, along the axis thereof:

characterised by;

a pressure pad (8) mounted to the housing and extending into the cavity from the off-axis opening of the housing and movable between a locking disposition, in which the pad (8) bears on the locus of the inner elongate body (26) for preventing axial movement thereof with respect to the outer body (28), and simultaneously allows injection of fluid into the annular cavity (30), and a release disposition in which the pad is spaced from the locus of the inner elongate body for permitting axial movement of the inner body with respect to the outer body.

11. Device according to claim 10, wherein the pressure pad (8) is carried on the male portion (32) of a Luer connector, and wherein the male portion of the Luer connector connects to a mating female portion (33) on the off-axis end (36) of the housing.

12. Device according to claim 10 or 11, characterised in that the pressure pad (8) is moved between the locking and release disposition by a rotation of substantially less than half a turn.

13. Device according to any one of claims 10 to 12, characterised by an O-ring (18) inside a recess (14) at the proximal end (12) of the housing to provide a fluid-tight seal with the inner body (26).

14. Device according to claim 13, characterised by a plug (20) at the proximal end of the housing to return the O-ring in the recess during proximal movement of the inner body.

18. Stent delivery system comprising an inner elongate body (26) and an outer elongate tubular body (28) which are co-axially arranged, a pull-back device (70) enabling proximal displacement of the outer body with respect to the inner body for releasing a stent contained within an annular cavity formed between the inner and outer body, into a body lumen, a device (1) for passing fluid into the annular cavity having a housing (2) with a distal end (24), a proximal end (12) and an off-axis end (36), the housing provides a seating at the distal end thereof for the outer elongate tubular body along an axis of the housing extending between the proximal and the distal end, the distal and off-axis ends defining respective openings (30, 31) which are in fluid communication with each other, and the proximal end having a lumen (23) to enable the inner elongate body to extend from the housing both distally and proximally, along the axis thereof, the stent delivery system being

characterised by

a locking and release device (1) mounted to the housing (2) and extending into the off-axis opening of the housing to bear, in a locking disposition, against the inner body to prevent axial movement thereof with respect to the outer body, and to simultaneously allow injection of fluid into the annular cavity and, in a released disposition, to be spaced from the inner body to permit axial movement of the inner body with respect to the outer body.