Catheter Deployment Device

• US 20070265596A1
• Filed: 05/03/2007
• Published: 11/15/2007
• Est. Priority Date: 12/07/2001
• Status: Active Grant

• Current Assignee: Abbott Laboratories
• Original Assignee: Abbott Laboratories
• Inventors: Dolin, Jeff, George, Robert, Lasser, Amelia, Jen, Jimmy
• Granted Patent: US 7,878,986 B2
• Time in Patent Office: Days
• US Class Current: 604/528
• CPC Class Codes: A61B 17/3207 Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61B 2017/22042 Details of the tip of the guide wire
• CPC Class Codes: A61B 2017/22048 Balloons
• CPC Class Codes: A61B 2017/22069 Immobilising; Stabilising
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61B 2017/22094 for crossing total occlusions, i.e. piercing
• CPC Class Codes: A61B 2017/22095 accessing a blood vessel true lumen from the sub-intimal space
• CPC Class Codes: A61B 2017/3409 including needle or instrument drives
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61M 2025/0046 Coatings for improving slidability
• CPC Class Codes: A61M 2025/0086 the needles having bent tips, i.e. the needle distal tips are angled in relation to the longitudinal axis of the catheter
• CPC Class Codes: A61M 2025/0087 Multiple injection needles protruding laterally from the distal tip
• CPC Class Codes: A61M 2025/009 the needle having a bent tip, i.e. the needle distal tip is angled in relation to the longitudinal axis of the catheter
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 2025/0197 for creating an artificial passage within the body, e.g. in order to go around occlusions
• CPC Class Codes: A61M 2025/09116 Design of handles or shafts or gripping surfaces thereof for manipulating guide wires
• CPC Class Codes: A61M 25/0068 : Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0069 : Tip not integral with tube
• CPC Class Codes: A61M 25/008 : Strength or flexibility characteristics of the catheter tip
• CPC Class Codes: A61M 25/0084 : being one or more injection needles
• CPC Class Codes: A61M 25/0136 : Handles therefor
• CPC Class Codes: A61M 25/09 : Guide wires
• CPC Class Codes: A61M 25/09041 : Mechanisms for insertion of guide wires

Abstract

An apparatus for deploying a needle within a lumen is provided. The apparatus includes a housing having a threaded bushing radially disposed therein. The bushing rigidly couples with a nose cone having a guide tip disposed at an end opposite the bushing for penetrating an arterial wall of a lumen. During operation, a user incrementally advances the bushing within the housing, thereby incrementally advancing the guide tip into the lumen. The nose cone also includes a flex guide having a slot configuration which couples with the guide tip which deploys into the lumen along with the guide tip.

Claims

1. A device for advancing a guide tip through a lumen, the device comprising:

a catheter where the guide is operatively associated with the catheter at a distal end of the catheter;

a housing coupled with a proximal end of the catheter;

a bushing disposed within the housing, the bushing operatively associated with the housing such that the bushing incrementally advances within the housing; and

an inner key coupled with the bushing at a proximal end of the inner key, the guide tip being coupled with the inner key such that as the bushing incrementally advances within the housing, the guide tip incrementally advances within the lumen.

2. The device as recited in claim 1, wherein the housing further includes a groove radially defined within an inner wall of the housing.

3. The device as recited in claim 2, wherein the bushing further includes a bushing thread disposed about a periphery of the bushing, the bushing thread complementing the housing groove such that the thread travels within the groove, thereby allowing incremental movement of the bushing within the housing.

4. The device as recited in claim 1, wherein the guide tip is constructed of stainless steel.

5. The device as recited in claim 4, the device further comprising:

a flex guide coupled with the guide tip wherein the flex guide has a wall defining a slot configuration.

6. The device as recited in claim 4, wherein the guide tip is configured to penetrate tissue surrounding the lumen.

7. The device as recited in claim 6, wherein the guide tip further includes a cam surface.

8. The device as recited in claim 7, the device further comprising:

a nose cone housing the guide tip, the nose cone having a cam surface which engages with the guide tip cam surface as the guide tip begins advancement into the lumen wherein the engagement between the nose cone cam surface and the guide tip cam surface directs penetration of the guide tip through the tissue surrounding the lumen.

9. The device as recited in claim 1, wherein the inner key operatively couples with the bushing via a spring such that the spring advances the inner key and the guide tip through the lumen.

10. A device for advancing a guide tip through a lumen, the device comprising:

a housing having an inner groove;

a bushing disposed within the housing, the bushing being threaded such that the thread complements the inner groove thereby allowing incremental movement of the bushing within the housing; and

an inner key coupled with the bushing such that as the bushing advances within the housing, the bushing advances the inner key.

11. The device as recited in claim 10, wherein the guide tip couples with the inner key at an end opposite the bushing.

12. The device as recited in claim 11, wherein the guide tip is constructed of stainless steel.

13. The device as recited in claim 12, the device further comprising:

a flex guide coupled with the guide tip wherein the flex guide has a wall defining a slot configuration.

14. The device as recited in claim 10, wherein the guide tip further comprises:

a plurality of tips disposed about a periphery of the guide tip.

15. A device for advancing a guide tip through a lumen, the device comprising:

a housing having a groove radially defined within an inner wall of the housing;

a bushing disposed within the housing, the bushing having a thread which engages with the housing groove such that the bushing incrementally advances within the housing; and

an inner key coupled with the bushing at a proximal end of the inner key, where the guide tip couples at a distal end of the inner key such that as the bushing incrementally advances within the housing, the guide tip incrementally advances within the lumen

16. The device as recited in claim 15, wherein the guide tip includes a plurality of tips disposed about a periphery of the guide tip.

17. The device as recited in claim 15, wherein the guide tip is constructed of stainless steel.

18. The device as recited in claim 15, wherein the guide tip is flexible.

19. The device as recited in claim 15, wherein the guide tip includes a tip configured to penetrate tissue surrounding the lumen.

20. The device as recited in claim 15, wherein the inner key is operatively associated with the bushing via a spring such that the spring advances the inner key and the guide tip through the lumen.

21. A method for advancing a guide tip through an arterial wall defining a lumen using a catheter device, the catheter device including a grooved housing with a threaded bushing which complements a groove defined by the housing, the method comprising:

introducing a catheter having an inner key within a lumen of a patient on a first side of an occlusion within the lumen, wherein the inner key couples with the bushing;

navigating around the occlusion within the lumen to a second side of the occlusion with the catheter; and

advancing the guide tip through the arterial wall and into the lumen on the second side of the occlusion by rotating the housing of the catheter device, wherein rotation of the housing causes linear motion of the bushing within the housing, thereby incrementally advancing the bushing and the guide tip.

22. The method for advancing a guide tip as recited in claim 21, wherein the guide tip includes a plurality of tips disposed in a circular configuration about a periphery of the guide tip.

23. The method for advancing a guide tip as recited in claim 22, wherein the plurality of tips are configured to penetrate the arterial wall of the lumen.

24. The method for advancing a guide tip as recited in claim 21, wherein the catheter device further includes a flex guide coupled intermediate the inner key and the guide tip such that the flex guide deploys into the arterial and the lumen upon incremental advancement of the guide tip.

25. The method for advancing a guide tip as recited in claim 24, wherein the flex guide has a wall defining a slot configuration.

26. The method for advancing a guide tip as recited in claim 24, wherein the flex guide has a bellows configuration.