Reduced Force Device for Intravascular Access and Guidewire Placement

• US 20160346519A1
• Filed: 07/08/2016
• Published: 12/01/2016
• Est. Priority Date: 06/29/2007
• Status: Active Grant

• Current Assignee: Actuated Medical, Inc.
• Original Assignee: Actuated Medical, Inc.
• Inventors: Bagwell, Roger B., Clement, Ryan S., Mulvihill, Maureen L., Scruggs, Casey A., Snook, Kevin A.
• Granted Patent: US 9,987,468 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 10/0233 Pointed or sharp biopsy instruments
• CPC Class Codes: A61B 10/025 for taking bone, bone marrow or cartilage samples
• CPC Class Codes: A61B 17/3401 Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia local anaesthesia A61M19/00
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 17/3476 Powered trocars, e.g. electrosurgical cutting, lasers, powered knives
• CPC Class Codes: A61B 2010/0208 Biopsy devices with actuators, e.g. with triggered spring mechanisms
• CPC Class Codes: A61B 2017/00115 with audible or visual output
• CPC Class Codes: A61B 2017/00123 and automatic shutdown
• CPC Class Codes: A61B 2017/320089 node location
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150137 by vibration enhancing collection by vibration A61B5/150175
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61M 25/065 Guide needles
• CPC Class Codes: A61M 25/09041 Mechanisms for insertion of guide wires
• CPC Class Codes: A61M 5/3287 Accessories for bringing the needle into the body; Automatic needle insertion A61M5/20, A61M5/31525 take precedence

Abstract

A device for penetrating tissue with reduced force and placing a guidewire is provided. The device includes a driving actuator generating reciprocating motion. A penetrating member having a lumen dimensioned to accommodate a guidewire is provided. A coupler mechanically connects the driving actuator and the penetrating member to transfer the reciprocating motion to the penetrating member. The penetrating member may be coaxial or axially offset from the driving actuator. At least one frictional member facilitates the movement of the guidewire through the lumen for placement at the target tissue. The frictional member(s) may be operated manually or by a guidewire actuator. A housing may also be provided including a channel also dimensioned to accommodate the guidewire, and may further include the frictional member(s) for facilitating movement of the guidewire. The channel and lumen are aligned to permit placement of the guidewire at the target site.

Claims

1. A device for penetrating tissue, comprising:

a driving actuator generating reciprocating motion in an axial direction;

a penetrating member having an open distal end and an opposite open proximal end, and further comprising a lumen extending between said open distal and proximal ends and dimensioned to accommodate a guidewire;

at least one coupler in mechanical communication connecting said driving actuator and said penetrating member and transmitting said reciprocating motion to said penetrating member; and

at least one frictional member to engage said guidewire and facilitate movement of said guidewire through said lumen.

2. The device as recited in claim 1, further comprising a guidewire actuator that mechanizes movement of said at least one frictional member.

3. The device as recited in claim 2, wherein said guidewire actuator is a motor.

4. The device as recited in claim 1, wherein said at least one frictional member is moved manually.

5. The device as recited in claim 1, wherein said at least one frictional member rotates to move said guidewire in said lumen.

6. The device as recited in claim 1, further comprising a plurality of frictional members, wherein at least one of said frictional members is active.

7. The device as recited in claim 6, wherein at least one of said frictional members is passive and moves dependent on the movement of said at least one active frictional member.

8. The device as recited in claim 1, wherein an axis of said penetrating member differs from an axis of said driving actuator.

9. The device as recited in claim 8, wherein said axis of said penetrating member is parallel to said axis of said driving actuator.

10. The device as recited in claim 8, wherein said coupler rigidly interconnects said penetrating member and said driving actuator so as to transfer said reciprocating motion from said axis of said driving actuator to said axis of said penetrating member.

11. The device as recited in claim 1, wherein said penetrating member is selectively attached to said coupler.

12. The device as recited in claim 11, wherein said penetrating member is disposable.

13. The device as recited in claim 1, further comprising a housing having a channel extending through at least a portion of said housing, said channel dimensioned to accommodate said guidewire and aligned with said lumen of said penetrating member.

14. The device as recited in claim 13, wherein said housing is connected to said penetrating member such that said lumen and said channel align in fluidic engagement and form a continuous bore.

15. The device as recited in claim 13, wherein said housing further comprises a housing aperture permitting access to said at least one frictional member.

16. The device as recited in claim 13, wherein said penetrating member and said housing together are selectively attached to at least said coupler.

17. The device as recited in claim 16, wherein said penetrating member and said housing together are disposable.

18. The device as recited in claim 1, wherein said penetrating member is coaxial with said driving actuator.

19. The device as recited in claim 18, further comprising a housing including said driving actuator, said at least one frictional member, and a channel dimensioned to accommodate said guidewire extending through at least a portion of said housing and through said driving actuator, such that said lumen of said penetrating member and said channel align in fluidic engagement and form a continuous bore.

20. The device as recited in claim 1, wherein said driving actuator comprises at least one of a voice coil, piezoelectric element, and a flextensional transducer.