Device for performing a surgical procedure and method

• US 9,730,746 B2
• Filed: 03/15/2013
• Issued: 08/15/2017
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Kyphon SARL (Medtronic Plc)
• Original Assignee: Kyphon SARL (Medtronic Plc)
• Inventors: Auyoung, Bryan J., Sapida, Warren C.
• Primary Examiner(s): Manahan, Todd E
• Assistant Examiner(s): SHIRSAT, MARCELA
• Application Number:
  US13/838,794
• Publication Number:
  US 20140276572A1
• Time in Patent Office: 1,614 Days
• Field of Search: 606 92- 94, 606191-200, 604506, 604508, 604509, 604 9601, 604 9701, 60410101, 60410202, 60410203, 604103, 60410303, 60410307, 604 10, 604 309, 60410313, 60410314, 604106-108
• CPC Class Codes: A61B 17/8805 for introducing fluid filler into bone or extracting it A61B17/7097, A61B17/8833 take precedence
• CPC Class Codes: A61B 17/8811 characterised by the introducer tip, i.e. the part inserted into or onto the bone
• CPC Class Codes: A61B 17/885 Tools for expanding or compacting bones or discs or cavities therein A61B17/8805, A61B17/7097 take precedence
• CPC Class Codes: A61B 17/8852 capable of being assembled or enlarged, or changing shape, inside the bone or disc
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

A medical balloon device includes an outer member extending along an axis. An inflatable member has a proximal end extending from a first end of the outer member and a distal end. An inner member is positioned within the outer member and the inflatable member such that a first end of the inner member is coupled to the distal end of the inflatable member. A support member is movably disposed within the inner member and includes a first end configured to removably engage the first end of the inner member. Translation of the support member along the axis causes the inflatable member to move between a first position in which the inflatable member has a first length and a first profile and a second position in which the inflatable member has a second reduced length and a second reduced profile. Methods of use are disclosed.

Claims

1. A device for performing a surgical procedure comprising:

an outer member extending along a central longitudinal axis and comprising an inner surface defining a first passageway;

an inflatable member having a proximal end coupled to the outer member, the inflatable member including an inner surface defining a chamber;

an inner member positioned within the first passageway and the chamber such that a distal end of the inner member is coupled to a distal end of the inflatable member, the distal end of the inner member comprising a stopper positioned such that the axis intersects an end wall of the stopper, the inner member having an inner surface defining a second passageway; and

a support member movably disposed within the second passageway,

wherein translation of the support member along the axis in a first direction causes the device to move between a first position in which a distal end of the support member is spaced apart from the stopper and the inflatable member has a first length and a second position in which the distal end of the support member is positioned within the stopper and the inflatable member has a second length, the second length being greater than the first length.

2. A device as recited in claim 1, wherein the stopper has an opening extending parallel to the axis and the distal end of the support member is disposed in the opening of the stopper when the device is in the second position such that the end wall of the stopper prevents the distal end of the support member from translating through the distal end of the inflatable member.

3. A device as recited in claim 1, wherein:

the stopper is bonded to the inner surface of the inner member, the stopper having an opening extending parallel to the axis; and

the distal end of the support member includes a stepped portion configured for disposal in the opening of the stopper when the device is in the second position.

4. A device as recited in claim 1, wherein the stopper has an opening extending parallel to the axis and the distal end of the support member includes a stepped portion configured for disposal in the opening of the stopper when the device is in the second position, wherein the opening and the stepped portion each have a configuration configured to engage one another to prevent rotation of the support member within the stopper about the axis.

5. A device as recited in claim 4, wherein rotation of the support member about the axis rotates the stopper which in turn causes the inflatable member to twist about the inner member such that the device moves between the second position and a third position.

6. A device as recited in claim 4, wherein the opening and the stepped portion each have a polygonal configuration, wherein the polygonal configuration of the opening mates with the polygonal configuration of the stepped portion.

7. A device as recited in claim 4, wherein the opening and the stepped portion each have a hexalobe configuration.

8. A device as recited in claim 1, wherein the device includes a distal marker band having an inner surface engaging an outer surface of the inner member.

9. A device as recited in claim 1, wherein a portion of the support member is disposed in a third passageway defined by an inner surface of an inflation member and a proximal end of the support member includes a cap having a first locking surface configured to engage a second locking surface of the inflation member to maintain the inflatable member in the second position.

10. A device as recited in claim 9, wherein the first locking surface is a first thread form and the second locking surface is a second thread form.

11. A device as recited in claim 1, wherein:

the device includes a cannula defining a lumen;

the outer member is movably disposed in the lumen; and

the inflatable member is configured for disposal in the lumen when the device is in the second position and is prevented from being disposed in the lumen when the device is in the first position.

12. A device as recited in claim 11, wherein the outer member, the inner member and the inflatable member are made from a material having a lower modulus of elasticity than a material from which the cannula and the support member are made.

13. A device as recited in claim 11, wherein the diameter of the lumen is about 4.0 mm.

14. A device as recited in claim 1, wherein the end wall extends perpendicular to the axis.

15. A device as recited in claim 1, wherein the first passageway is coaxial with the axis.

16. A device as recited in claim 1, wherein the stopper comprises an opening that is coaxial with the first passageway and the axis, the end wall defining a distal end of the opening.

17. A device for performing a surgical procedure comprising:

an outer member defining an axis and comprising an inner surface defining a passageway;

an inflatable member having a first end extending from a first end of the outer member, the inflatable member including an inner surface defining a chamber;

an inner member disposed within the passageway and the chamber, the inner member including a first end that is coupled to a second end of the inflatable member;

a stopper that is fixed to the first end of the inner member; and

a support member movably disposed within the inner member,

wherein translation of the support member along the elongated axis in a first direction causes the device to move between a first position in which the support member is spaced apart from the stopper and the inflatable member has a first length and a second position in which a portion of the support member is positioned within the stopper and the inflatable member has a second length, the second length being greater than the first length, and

wherein rotation of the inner member relative to the outer member about the axis causes the inflatable member to twist about the axis such that the device moves between the second position and a third position.

18. A device for performing a surgical procedure comprising:

an outer member extending along an axis and comprising a first passageway;

an inner member having a proximal end positioned within the first passageway, the inner member having an inner surface defining a second passageway;

a stopper bonded to the inner surface of the inner member;

an inflatable member having a proximal end coupled to the outer member and a distal end coupled to the inner member; and

a support member movably disposed within the second passageway, the support member being configured for translation along the axis to move the device between a first position in which a distal tip of the support member is spaced apart from the stopper and the inflatable member has a first length and a second position in which the distal tip is positioned within the stopper and the inflatable member has a second length, the second length being greater than the first length.

19. A device as recited in claim 18, wherein the stopper includes an opening defined by an inner surface of the stopper and an end wall of the stopper, the distal tip being positioned within the opening when the device is in the second position such that the distal tip engages the inner surface and the end wall.

20. A device as recited in claim 19, wherein the end wall extends perpendicular to the longitudinal axis such that the axis intersects the end wall.