IP Library › Granted Patent US 12,370,354
Granted Patent B2
US 12,370,354 · App. 17/053,414 · Granted Jul 29, 2025

Coupling mechanisms for medical devices

Inventors: Jeffery Arnett (Gilbert, AZ); Moussa Chehade (Toronto, CA); John Paul Urbanski (Toronto, CA)
Assignee: Boston Scientific Medical Device Limited
A61M39/10A61M25/0662A61M39/1011A61M2025/0681A61M2025/0687A61M2039/0229A61M2039/1016A61M2039/1061
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Quick Facts
Patent No.
US 12,370,354
App. No.
17/053,414
Filed
Nov 6, 2020
Granted
Jul 29, 2025
Kind
B2
Art Unit
3783
USPC
604/533
Abstract

Apparatus and systems are disclosed that incorporate coupling mechanisms to enable coupling of two mating member such as medical devices such as introducers, sheaths, dilators. More specifically, the disclosure relates to releasable coupling mechanisms, to allow for releasable coupling of two medical devices such as a dilator and a sheath so the devices can be maneuvered and/or manipulated together for example during a part of a medical procedure.

Claims (45)

1. A releasable coupling mechanism comprising:

a housing defining a primary mating member defining an opening for receiving a secondary mating member to be coupled thereto; and

an elastically deformable retaining component comprises one or more resilient u-shaped cantilever terminating in a snap having a first ramp defining an insertion force and a second ramp defining a removal force, wherein the first ramp and the second ramp include angles that create a component of force that compresses the u-shaped cantilever, wherein the insertion force and the removal force are equivalent, the elastically deformable retaining component being positioned within the housing, for releasably coupling the secondary mating member to the housing upon insertion thereof into the housing;

wherein the elastically deformable retaining component has a first engaging configuration and a second non-engaging configuration, wherein the elastically deformable retaining component is moveable into its second non-engaging configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration to couple the secondary mating member to the primary mating member preventing the secondary mating member to be detachable therefrom, preventing disengagement thereof in the absence of force to prevent the secondary mating member to be removable from the opening thereof.

2. The releasable coupling mechanism of claim 1 , wherein the retaining component comprises a deflectable member and is deflectable into its second non-engaging configuration upon insertion of the secondary mating member and is capable of returning to its original first engaging configuration thereafter.

3. The releasable coupling mechanism of claim 2 , wherein the retaining component comprises a flexible retaining component.

4. The releasable coupling mechanism of claim 2 , wherein the retaining component comprises an elastic retaining component.

5. The releasable coupling mechanism of claim 4 , wherein the retaining component comprises an elastically deformable retaining component.

6. The releasable coupling mechanism of claim 5 , wherein the retaining component is contained within the housing.

7. The releasable coupling mechanism of claim 6 , wherein the housing comprises a cap and a cover, defining a cavity therein, wherein the retaining component is seated within the cavity defined by the housing.

8. The releasable coupling mechanism of claim 6 , wherein the retaining component is coupled to the housing.

9. The releasable coupling mechanism of claim 8 , wherein the retaining component is attached to the housing.

10. The releasable coupling mechanism of claim 9 , wherein the retaining component is attached to the housing at least at an end thereof.

11. The releasable coupling mechanism of claim 9 , wherein the retaining component is formed integrally with the housing.

12. The releasable coupling mechanism of claim 9 , wherein the retaining component comprises one or more retaining arms.

13. The releasable coupling mechanism of claim 1 , wherein the one or more u-shaped cantilever in its first engaging configuration comprises a substantially u-shaped configuration and wherein the retaining component in its second non-engaging configuration comprises a substantially compressed shaped configuration; and

wherein the elastically deformable retaining component is moveable into its second non-engaging configuration comprising the substantially compressed u-shaped configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration comprising the substantially u-shaped configuration to couple the secondary mating member to the primary mating member.

14. The releasable coupling mechanism of claim 1 , wherein the one or more u-shaped cantilever in its first engaging configuration comprises a substantially u-shaped configuration and wherein the retaining component in its second non-engaging configuration comprises a substantially expanded shaped configuration;

wherein the elastically deformable retaining component is moveable into its second non-engaging configuration comprising the substantially expanded u-shaped configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration comprising the substantially u-shaped configuration to couple the secondary mating member to the primary mating member.

15. The releasable coupling mechanism of claim 1 , wherein the retaining component is moveable in a direction that is in a plane that is perpendicular to the direction of advancement of secondary mating member into the housing for insertion therein.

16. The releasable coupling mechanism of claim 1 , wherein the retaining component is moveable in a direction that is in a plane that is in plane with the direction of advancement of secondary mating member into the housing for insertion therein.

17. The releasable coupling mechanism of claim 1 , wherein the retaining component is moveable in a plane that is perpendicular with the direction of advancement of secondary mating member into the housing for insertion therein.

18. The releasable coupling mechanism of claim 1 , wherein the retaining component is moveable in a radial direction.

19. The releasable coupling mechanism of claim 1 , wherein the retaining component is biased in its first engaging configuration, wherein upon insertion of the secondary mating member into the housing the secondary mating member exerts an outward radial force against the retaining component whereby the retaining component is moveable into its second engaging configuration to enable the secondary mating member to advance into the housing.

20. The releasable coupling mechanism of claim 1 , wherein the retaining component is independently moveable with respect to the housing.

21. A releasable coupling mechanism comprising:

a housing defining a primary mating member defining an opening for receiving a secondary mating member to be coupled thereto; and

an elastically deformable retaining component comprises one or more resilient u-shaped cantilever terminating in a snap having a first ramp defining an insertion force and a second ramp defining a removal force, wherein the insertion force and the removal force are different, wherein upon removal of the second mating member from the primary mating member the removal force creates a moment on the u-shaped cantilever, the elastically deformable retaining component being positioned within the housing, for releasably coupling the secondary mating member to the housing upon insertion thereof into the housing;

wherein the elastically deformable retaining component has a first engaging configuration and a second non-engaging configuration, wherein the elastically deformable retaining component is moveable into its second non-engaging configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration to couple the secondary mating member to the primary mating member preventing the secondary mating member to be detachable therefrom, preventing disengagement thereof in the absence of force to prevent the secondary mating member to be removable from the opening.

22. A releasable coupling mechanism comprising:

a housing defining a primary mating member defining an opening for receiving a secondary mating member to be coupled thereto; and

an annular elastically deformable retaining component comprising a pair of substantially straight segments coupled together at each of their respective ends by an arcuate segment, wherein a maximum deflection of the deformable retaining component occurs at a mid-point of the substantially straight segments, the annular elastically deformable retaining component being positioned within the housing, for releasably coupling the secondary mating member to the housing upon insertion thereof into the housing;

wherein the annular elastically deformable retaining component has a first engaging configuration and a second non-engaging configuration, wherein the annular elastically deformable retaining component is moveable into its second non-engaging configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration to couple the secondary mating member to the primary mating member preventing the secondary mating member to be detachable therefrom, preventing disengagement thereof in the absence of force to prevent the secondary mating member to be removable from the opening thereof.

23. The releasable coupling mechanism of claim 22 , wherein the annular elastically deformable retaining component is held loosely within the housing to be retained thereby wherein the retaining component is not coupled thereto or affixed thereto by secure attachment.

24. The releasable coupling mechanism of claim 23 , wherein the annular elastically deformable retaining component is free floating within the housing.

25. The releasable coupling mechanism of claim 23 , wherein the annular elastically deformable retaining component is moveable in a direction that is in a plane that is perpendicular to the direction of advancement of secondary mating member into the housing for insertion therein.

26. The releasable coupling mechanism of claim 22 , wherein the annular elastically deformable retaining component comprises a substantially disc shaped structure.

27. The releasable coupling mechanism of claim 26 , wherein the annular elastically deformable retaining component comprises a substantially oval disc shaped structure.

28. The releasable coupling mechanism of claim 27 , wherein the annular elastically deformable retaining component in its first engaging configuration comprises a substantially oval disc shaped configuration and wherein the retaining component in its second non-engaging configuration comprises a substantially circular disc shaped configuration;

wherein the annular elastically deformable retaining component is moveable into its second non-engaging configuration comprising the substantially circular disc shaped configuration upon insertion of the secondary mating member into the housing to enable the secondary mating member to advance into the housing and is moveable thereafter into its first engaging configuration comprising the substantially oval disc shaped configuration to couple the secondary mating member to the primary mating member.

29. The releasable coupling mechanism of claim 22 , wherein the annular elastically deformable retaining component comprises a snap member.

30. The releasable coupling mechanism of claim 29 , wherein the annular elastically deformable retaining component comprises a substantially oval snap member.

31. The releasable coupling mechanism of claim 30 , wherein the annular elastically deformable retaining component in its first engaging configuration comprises the substantially oval snap member defining a substantially oval shape and wherein the annular elastically deformable retaining component in its second non-engaging configuration comprises a substantially circular snap member defining a substantially circular shape;

wherein the substantially oval snap member is moveable outwards radially into its second non-engaging configuration comprising the substantially circular shape upon insertion of the secondary mating member into the housing to enable the secondary mating member to pass past one or more snaps positioned along the substantially oval snap member and is moveable thereafter into its first engaging configuration comprising the substantially oval shape to couple the secondary mating member to the primary mating member.

32. The releasable coupling mechanism of claim 22 , wherein the housing comprises a cap and cover, defining a space therein for holding the annular elastically deformable retaining component therein free from engagement therein.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2022
From: BAYLIS MEDICAL COMPANY INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 060938/0731 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2020
From: ARNETT, JEFFERY; CHEHADE, MOUSSA; URBANSKI, JOHN PAUL
To: BAYLIS MEDICAL COMPANY INC.
Reel/Frame 054299/0904 →
Continuity (2)
Provisional Application 62668700 · May 8, 2018
Related Publication 20210228858A1 · Jul 29, 2021
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