Medical probe with fluid rotary joint
First Claim
1. A medical probe comprising:
- an external sheath;
a rotatable fluid conduit housed within said external sheath, said rotatable fluid conduit including an inner lumen; and
a fluid rotary joint comprising;
an outer housing including an external port, wherein a proximal portion of said external sheath is connected to a distal region of said outer housing;
a rotatable insert having an inner channel, wherein said rotatable insert is housed within said outer housing and rotatable within said outer housing, and wherein a proximal portion of said rotatable fluid conduit is connected to said rotatable insert, such that said inner channel is in fluid communication with said inner lumen, and such that said rotatable fluid conduit rotates in unison with said rotatable insert;
said external sheath defining an outer lumen, wherein said inner lumen is in fluid communication with said outer lumen at a location remote from a proximal portion of said rotatable fluid conduit;
a secondary port in fluid communication with said outer lumen, wherein said secondary port is located in a proximal direction relative to a distal end of said rotatable fluid conduit, such that a direction of fluid flow in the outer lumen is opposite to a direction fluid flow in the inner lumen; and
at least one seal between said rotatable insert and an inner surface of said outer housing;
wherein said inner channel is in fluid communication with said external port under rotation of said rotatable fluid conduit; and
wherein said rotatable insert is connectable to a rotational drive mechanism.
2 Assignments
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Accused Products
Abstract
A catheter is provided that includes an external sheath, a rotatable conduit housed within the external sheath, and a fluid rotary joint having a rotatable insert that places an inner lumen of the rotatable conduit in fluid communication with an external port under rotation of the rotatable conduit. The rotatable insert may include a channel structure including an external annular channel. The rotatable conduit is received within the channel structure such that the inner lumen is in fluid communication with the external port through the annular channel under rotation. The external sheath may define an outer lumen that may be in fluid communication with the inner lumen at a location remote from a proximal portion of the catheter, and the outer lumen may be in fluid communication with a secondary port. The rotatable conduit may be housed within a torque cable that is connected to the rotatable insert.
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Citations
34 Claims
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1. A medical probe comprising:
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an external sheath; a rotatable fluid conduit housed within said external sheath, said rotatable fluid conduit including an inner lumen; and a fluid rotary joint comprising; an outer housing including an external port, wherein a proximal portion of said external sheath is connected to a distal region of said outer housing; a rotatable insert having an inner channel, wherein said rotatable insert is housed within said outer housing and rotatable within said outer housing, and wherein a proximal portion of said rotatable fluid conduit is connected to said rotatable insert, such that said inner channel is in fluid communication with said inner lumen, and such that said rotatable fluid conduit rotates in unison with said rotatable insert; said external sheath defining an outer lumen, wherein said inner lumen is in fluid communication with said outer lumen at a location remote from a proximal portion of said rotatable fluid conduit; a secondary port in fluid communication with said outer lumen, wherein said secondary port is located in a proximal direction relative to a distal end of said rotatable fluid conduit, such that a direction of fluid flow in the outer lumen is opposite to a direction fluid flow in the inner lumen; and at least one seal between said rotatable insert and an inner surface of said outer housing; wherein said inner channel is in fluid communication with said external port under rotation of said rotatable fluid conduit; and wherein said rotatable insert is connectable to a rotational drive mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification