Distal wire stop having adjustable handle

• US 20090005754A1
• Filed: 06/29/2007
• Published: 01/01/2009
• Est. Priority Date: 06/29/2007
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Wilson-Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Soetermans, Maximiliano
• Granted Patent: US 8,292,872 B2
• Time in Patent Office: Days
• US Class Current: 604/500
• CPC Class Codes: A61M 2025/0034 characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores making of catheters A61M25/0009
• CPC Class Codes: A61M 2025/004 characterized by lumina being arranged circumferentially
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 2025/018 Catheters having a lateral opening for guiding elongated means lateral to the catheter
• CPC Class Codes: A61M 2025/0183 Rapid exchange or monorail catheters
• CPC Class Codes: A61M 2025/09116 Design of handles or shafts or gripping surfaces thereof for manipulating guide wires
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/003 characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves catheter tips A61M25/0067
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0169 Exchanging a catheter while keeping the guidewire in place
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 25/09041 Mechanisms for insertion of guide wires
• 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 method and apparatus for releasably securing a wire guide to an elongate medical device for introduction into a work site with the bodily lumen of a patient. An elongate engagement member is configured to engage the wire guide while it is coupled to the elongate medical device and is configured so as to prevent relative movement between the wire guide and the elongate medical device. The elongate engagement member includes an adjustable handle assembly for adjusting the relative position of the distal end of the elongate engagement member relative to the elongate medical device.

Claims

1. An elongate engagement member for use with an elongate medical device comprising a tubular member having a coupling region configured to couple with a wire guide, the coupling region being disposed near a distal end of the tubular member, the elongate engagement member comprising:

an elongate shaft having a distal end configured to frictionally engage an exterior surface of the wire guide and an inner wall of a passageway within the tubular member; and

a handle assembly adjustably connected to a proximal portion of the elongate shaft, the handle assembly comprising a hub connector configured for engagement with a proximal port of the elongate medical device, the handle assembly further comprising a handle portion movably connected to the hub connector,

wherein the elongate engagement member is configured to engage and releasably secure a wire guide coupled with the elongate medical device and prevent relative movement between the wire guide and the elongate medical device; and

wherein movement of the handle portion relative to the hub connector is configured to cause relative longitudinal movement between the elongate shaft and the elongate medical device.

2. The elongate engagement member of claim 1, wherein the distal end of the shaft is configured to engage a portion of the wire guide that is disposed within the passageway of the tubular member.

3. The elongate engagement member of claim 1, wherein the hub connector comprises a male luer-type fitting that is configured to engage a female luer-type fitting on the proximal port of the elongate medical device.

4. The elongate engagement member of claim 1, wherein the handle portion is rotatably connected to the hub connector, and further wherein rotation of the handle portion relative to the hub connector is configured to change the distance between the hub connector and the distal end of the elongate shaft.

5. The elongate engagement member of claim 4, wherein the proximal portion of the elongate shaft is helically connected to the handle portion and slidably connected to the hub connector such that rotation of the handle portion relative to the hub connector causes longitudinal movement of the elongate shaft relative to the handle assembly.

6. The elongate engagement member of claim 5, wherein the handle portion comprises an internal helical thread that rotatably engages an external helical thread disposed on the proximal portion of the elongate shaft.

7. The elongate engagement member of claim 4, wherein the proximal portion of the elongate shaft is prevented from rotating relative to the hub connector.

8. The elongate engagement member of claim 4, wherein rotation of the handle portion relative to the hub connector in a first direction is configured to engage the distal end of the elongate shaft with a wire guide disposed through the elongate medical device, and wherein rotation of the handle portion relative to the hub connector in a second direction is configured to disengage the distal end of the elongate shaft from the wire guide.

9. The elongate engagement member of claim 1, wherein the proximal portion of the elongate shaft is fixedly connected to the handle portion and the handle portion is slidably connected to the hub connector, and further wherein longitudinal movement of the handle portion relative to the hub connector is configured to change the distance between the hub connector and the distal end of the elongate shaft.

10. The elongate engagement member of claim 9, wherein one of the handle portion and the hub connector comprises a detent that is configured to engage one of a plurality of sockets in the other of the handle portion and the hub connector.

11. The elongate engagement member of claim 10, wherein the plurality of sockets comprises a first socket and a second socket, wherein the engagement of the detent with the first socket is configured to engage the distal end of the elongate shaft with a wire guide disposed through the elongate medical device, and wherein engagement of the detent with the second socket is configured to disengage the distal end of the elongate shaft from the wire guide.

12. A system for introducing multiple medical devices into a work site within a bodily lumen of a patient comprising:

an elongate medical device comprising a tubular shaft extending between a distal end and a proximal end, a lumen extending through at least a portion of the tubular shaft, the lumen comprising a coupling region extending between a distal opening and a proximal opening;

a wire guide comprising a shaft extending between a distal end and a proximal end, the shaft configure to slidably extend through the lumen of the elongate medical device; and

an elongate engagement member comprising a distal end configured to frictionally engage the shaft of the wire guide and the lumen of the elongate medical device, the elongate engagement member further comprising an adjustable handle assembly for connecting to the elongate medical device,

wherein the wire guide is movable from a coupled position to an uncoupled position, the wire guide extending through the coupling region of the elongated medical device when in the coupled position, the wire guide not extending through the coupling region of the elongated medical device when in the uncoupled position,

wherein the elongate engagement member is configured to engage and releasably secure the wire guide in the coupled position and prevent relative movement between the wire guide and the elongate medical device, and

wherein the adjustable handle assembly is configured to adjust the longitudinal position of the distal end of the elongate engagement member relative to the elongate medical device.

13. The system of claim 12, wherein the elongate engagement member comprises an elongate shaft, the elongate shaft having a distal end configured to frictionally engage an exterior surface of the wire guide and an inner wall of the tubular shaft within the coupling region of the elongate medical device.

14. The system of claim 13, wherein the distal end of the shaft is configured to engage a portion of the wire guide that is disposed within the lumen of the coupling region of the elongate medical device.

15. The system of claim 12, wherein the handle assembly comprises a hub connector configured for engagement with a proximal port of the elongate medical device, the handle assembly further comprising a handle portion movably connected to the hub connector, wherein the movement of the handle portion relative to the hub assembly is configured to adjust the longitudinal position of the distal end of the elongate engagement member relative to the hub connector.

16. The system of claim 15, wherein the handle portion is rotatably connected to the hub connector, and further wherein rotation of the handle portion relative to the hub connector is configured to change the distance between the hub connector and the distal end of the elongate engagement member.

17. The system of claim 15, wherein the handle portion is slidably connected to the hub connector, and further wherein longitudinal movement of the handle portion relative to the hub connector is configured to change the distance between the hub connector and the distal end of the elongate engagement member.

18. A method of introducing multiple medical devices into a work site within a bodily lumen of a patient, comprising the steps of:

a) providing an elongate medical device comprising a tubular shaft having a distal portion, a proximal portion, and a lumen extending therethrough, the distal portion comprising a coupling region;

b) providing a wire guide comprising a wire guide shaft extending between a distal end and a proximal end;

c) providing an elongate engagement member having a distal end portion and proximal end portion, the proximal end portion being attached to an adjustable handle assembly;

d) releasably coupling the wire guide to the elongate medical device by engaging the wire guide with the coupling region of the elongate medical device;

e) advancing the elongate engagement member through the lumen of the elongate medical device and engaging the handle assembly with a proximal port of the elongate medical device;

f) adjusting the handle assembly to advance the distal end portion of the elongate engagement member into engagement with wire guide so as to releasably secure the wire guide in the coupled position and prevent relative movement between the wire guide and the elongate medical device;

g) advancing the elongate medical device, the wire guide, and the elongate engagement member to the work site.

19. The method of claim 18, wherein elongate engagement member comprises an elongate shaft, and wherein the step of engaging the wire guide with the elongate engagement member includes the step of frictionally engaging a portion of the wire guide disposed within the coupling region of the elongate medical device with the distal end portion of the shaft of the elongate engagement member.

20. The method of claim 18, wherein the adjustable handle assembly of the elongate engagement member comprises a hub connector and a handle portion movably connected to the hub connector, and wherein the step of engaging the wire guide with the elongate engagement member includes the step of moving the handle portion relative to the hub connector so as to distally advance the distal end of the elongate engagement member through the lumen of the elongate medical device.