Devices for creation of multiple vascular access sites
Various medical procedures benefit from the creation of multiple access sites in a single anatomical vessel. For example, in some cardiac procedures, a plurality of catheters may be introduced into a single blood vessel through a corresponding plurality of access sites. The present application discloses devices for creating multiple access sites in a vessel and methods of using the same.
1. A device for creating multiple access sites in an anatomical vessel, the device comprising:
a first shaft that comprises a platform at a distal end thereof;
a hub that either is coupled to or is configured to be coupled to the first shaft, wherein the hub is configured to be positioned at an exterior of a patient when the first shaft is coupled to the hub and is inserted into a vessel of the patient;
a first channel coupled to the hub, wherein the first channel defines a first longitudinal axis that is configured to extend through a linear region of the first shaft when the first shaft is coupled to the hub; and
a second channel coupled to the hub and spaced from the first channel, wherein the second channel defines a second longitudinal axis, and wherein the second channel is configured to permit a second shaft to extend therethrough,
wherein a single plane contains the first and second longitudinal axes such that at least a portion of each of the first and second shafts can be positioned within a single vessel when the first shaft is coupled to the hub and the second shaft extends through the second channel, and
wherein the platform of the first shaft is configured to stop a distal end of the second shaft at a position within the vessel when the second shaft is advanced through the second channel.
2. The device of claim 1 , wherein the shaft comprises a hollow cylinder that comprises a notched region at a distal end thereof, and wherein the platform comprises an inner surface of the notched region.
3. The device of claim 1 , wherein the platform is substantially semi-cylindrical.
4. The device of claim 1 , wherein the first shaft comprises a bending region that permits the distal end of the shaft to bend relative to a proximal portion of the shaft and permits the platform to generally align with or be parallel to a longitudinal axis of the vessel.
5. The device of claim 4 , wherein the first and second axes are parallel to each other.
6. The device of claim 1 , wherein the first shaft comprises a bending region that permits the distal end of the shaft to bend relative to a proximal portion of the shaft.
7. The device of claim 1 , wherein the first and second axes are at an angle relative to one another, wherein the first shaft is substantially linear, and wherein the second channel is configured to direct a distal end of the second shaft and stop proximate to the distal end of the first shaft when the distal end of the first shaft is within a vessel.
8. The device of claim 1 , further comprising a third channel coupled to the hub that defines a third longitudinal axis that is within the single plane and is at an angle relative to the first longitudinal axis, wherein the second longitudinal axis is also at an angle relative to the first longitudinal axis, and wherein the angles between the first and third longitudinal axes and between the first and second longitudinal axes differ from one another.
9. The device of claim 1 , further comprising a connector coupled to the hub, wherein the connector is configured to be coupled with a connector of an introducer needle.
10. A device for creating multiple access sites in an anatomical vessel, the device comprising:
a first shaft that comprises a platform configured to be inserted into the anatomical vessel;
a hub that either is coupled to or is configured to be coupled to the first shaft, and the hub either is coupled to or is configured to be coupled to a second shaft;
wherein the hub is configured to be positioned at an exterior of a patient when the first shaft is coupled to the hub and is inserted into a vessel of the patient;
wherein the hub maintains the first shaft and the second shaft in a position such that a the first shaft defines a first longitudinal axis and the second shaft defines a second longitudinal axis;
wherein a single plane contains the first and second longitudinal axes such that at least a portion of each of the first and second shafts can be positioned within the anatomical vessel; and
wherein the platform is configured to contact a distal end of the second shaft to prevent the tip from passing through a back wall of the anatomical vessel.
11. The device of claim 10 , wherein the hub comprises a lateral opening that is configured to permit the second shaft to be disposed in the hub via the lateral opening.
12. The device of claim 10 , wherein the hub comprises an interface for receiving a connector for the first shaft.
13. The device of claim 12 , wherein the connector for the first shaft is releasably coupleable from the interface, and wherein the connector is configured to be coupled to the first shaft.
14. The device of claim 13 , wherein the connector defines a lumen that is in fluid communication with the first shaft.
15. The device of claim 13 , wherein the connector is configured to be coupled with a connector of an introducer needle.
16. The device of claim 10 , wherein the hub comprises an interface for receiving a needle adapter comprising the first shaft.
17. A device for creating multiple access sites in an anatomical vessel, the device comprising:
a first shaft that comprises a platform configured to be inserted into the anatomical vessel;
a hub that either is coupled to or is configured to be coupled to the first shaft, wherein the hub is configured to be positioned at an exterior of a patient when the first shaft is coupled to the hub and is inserted into a vessel of the patient;
a first channel coupled to the hub, wherein the first channel defines a longitudinal axis that is configured to extend through a linear region of the first shaft when the first shaft is coupled to the hub; and
a second channel coupled to the hub and spaced from the first channel, wherein the second channel defines a second longitudinal axis, and wherein the second channel is configured to permit a second shaft to extend therethrough,
wherein the first and second longitudinal axes are configured to intersect, and wherein the platform is configured to prevent a distal tip of the second shaft from passing through a back wall of the anatomical vessel.
18. The device of claim 17 , wherein the first and second longitudinal axes are configured to intersect at a position that is at an interior of a vessel when the first shaft is coupled to the hub and a portion of the first shaft is positioned within the vessel.
19. A method of creating multiple access sites in a vessel, the method comprising:
inserting a portion of a first shaft through the skin of a patient and into an interior of the vessel at a first access site, wherein the first shaft is coupled to a hub at a position exterior to the patient; and
inserting a second shaft into a channel defined by the hub, then through the skin of the patient, and then into the interior of the vessel and into contact with the portion of the first shaft that is at the interior of the vessel at a second access site while the first shaft remains coupled with the hub.
20. The method of claim 19 , wherein the first shaft comprises a platform at a distal end thereof, and wherein said inserting the second shaft into the interior of the vessel comprises contacting the platform with a distal end of the second shaft within the vessel.
21. The method of claim 19 , further comprising coupling the first shaft to the hub, wherein the first shaft comprises an introducer needle, wherein the hub maintains the first shaft and the second shaft in a position such that the first shaft defines a first longitudinal axis and the second shaft defines a second longitudinal axis; and wherein a single plane contains the first and second longitudinal axes such that at least a portion of each of the first and second shafts can be positioned within the vessel.
22. The method of claim 19 , wherein inserting the second shaft into the channel defined by the hub comprises advancing the second shaft at an angle relative to the first shaft.
23. The method of claim 19 , further comprising inserting a third shaft into an additional channel defined by the hub, then through the skin of the patient, and then into the interior of the vessel at a third access site while the first shaft remains coupled with the hub.
24. The method of claim 19 , wherein inserting the portion of the first shaft through the skin of a patient and into an interior of the vessel at a first access site comprises imaging at least a portion of the patient to achieve a desired placement of the first shaft within the vessel, and wherein inserting a distal end of a second shaft into the interior of the vessel at a second access site is achieved without any further imaging of the patient.
25. The method of claim 19 , wherein the first shaft comprises a bending region, the method further comprising bending the first shaft at the bending region to bring a distal end of the first shaft into general alignment or parallelism with a longitudinal axis of the vessel.