DEVICES, SYSTEMS, AND METHODS FOR TRANSRADIAL ACCESS

• US 20120108926A1
• Filed: 10/27/2011
• Published: 05/03/2012
• Est. Priority Date: 10/27/2010
• Status: Active Grant

• Current Assignee: DTherapeutics LLC
• Original Assignee: DTherapeutics LLC
• Inventors: Kassab, Ghassan S.
• Granted Patent: US 10,219,828 B2
• Time in Patent Office: Days
• US Class Current: 600/323
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 2017/00026 Conductivity or impedance, e.g. of tissue
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/3405 using mechanical guide means
• CPC Class Codes: A61B 5/0538 invasively, e.g. using a catheter
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes

Abstract

Devices, systems, and methods for transradial access. In at least one embodiment of a device for providing access to a vessel or other luminal organ of the present disclosure, the device comprises a needle having a needle tip, a sheath positioned around at least part of the needle, the sheath defining an aperture at a distal sheath end, and a protractor in communication with the needle, whereby engagement of the protractor causes the needle tip to protract from the sheath, and whereby release of the protractor causes the needle tip to retract into the sheath.

Claims

1. A device for providing access to a vessel or other luminal organ, the device comprising:

a needle having a needle tip;

a sheath positioned around at least part of the needle, the sheath defining an aperture at a distal sheath end; and

a protractor in communication with the needle, whereby engagement of the protractor causes the needle tip to protract from the sheath through the aperture, and whereby release of the protractor causes the needle tip to retract through the aperture into the sheath,

wherein when the needle tip punctures a vessel or other luminal organ so that fluid within the vessel or other luminal organ is in contact with the needle tip, the fluid can enter a lumen of the sheath through the aperture and be detected within the sheath.

2. The device of claim 1, wherein at least part of the sheath is comprised of transparent material.

3. The device of claim 1, wherein at least part of the sheath is comprised of translucent material.

4. The device of claim 1, wherein the protractor is selected from the group consisting of a button and a rotatable dial.

5. The device of claim 1, wherein the sheath further comprises a tapered distal end.

6. The device of claim 5, wherein the tapered distal end of the sheath is configured to allow blood or other bodily fluids to pass between an outside wall of the needle and the aperture.

7. The device of claim 1, further comprising:

a needle mechanism in communication with the needle and the protractor, the needle mechanism operable to facilitate protraction and retraction of the needle tip from the sheath.

8. The device of claim 7, wherein the needle mechanism is selected from the group consisting of a spring, a compliant polymer, a coil, a sponge, and a bladder.

9. The device of claim 1, further comprising:

one or more wire apertures defined therethrough, the one or more wire apertures configured to receive a wire.

10. The device of claim 9, further comprising:

a wire positioned through the one or more wire apertures, the wire configured to permit a second device to be delivered over the wire.

11. The device of claim 10, wherein the wire comprises a guide wire.

12. A system for providing access to a vessel or other luminal organ, the system comprising:

a needle having a needle tip;

a sheath positioned around at least part of the needle, the sheath defining an aperture at a distal sheath end; and

an actuator in communication with the needle, whereby a first operation of the actuator causes the needle tip to protract from the sheath through the aperture, and whereby a second operation of the actuator causes the needle tip to retract through the aperture into the sheath,

wherein when the needle tip punctures a vessel or other luminal organ so that fluid within the vessel or other luminal organ is in contact with the needle tip, the fluid can enter a lumen of the sheath through the aperture and be detected within the sheath.

13. The system of claim 12, further comprising:

a needle mechanism in communication with the needle and the actuator, the needle mechanism operable to facilitate protraction and retraction of the needle tip from the sheath.

14. The system of claim 12, further comprising:

a sensor coupled to the needle and operable to sense at least one bodily parameter.

15. The system of claim 14, wherein the at least one bodily parameter comprises an impedance, an oxygen concentration, and a lactate concentration.

16. The system of claim 14, further comprising:

a wire coupled to the sensor and directly or indirectly coupled to the actuator, the wire capable of transmitting a signal from the sensor to the actuator.

17. The system of claim 14, further comprising:

a processor operably coupled to the sensor, the processor operable to control actuation of the actuator.

18. The system of claim 17, wherein when the sensor senses a threshold bodily parameter, the processor operates to control actuation of the actuator to protract or retract the needle.

19. A method for accessing a mammalian bodily vessel, the method comprising the steps of:

protracting a needle tip from a sheath of a device;

puncturing a mammalian bodily vessel using the needle tip so that the needle tip accesses a lumen of the mammalian bodily vessel; and

retracting the needle tip into the sheath of the device upon detection of blood from the radial artery within the sheath of the device.

20. The method of claim 19, further comprising the step of:

advancing a wire through the device so that at least part of the wire is positioned within the lumen of the mammalian bodily vessel.