Catheter connection systems and methods
First Claim
1. A connection system for coupling a catheter to a port of a medical device, the system comprising:
- a seal attached at or near a proximal end of the catheter, the seal comprising a flanged seal element defining an annular face that is substantially normal to a longitudinal axis of the catheter; and
a tubular restraint configured to slide partially or completely over the seal, wherein the restraint comprises;
a contact portion located on an interior surface of the restraint, the contact portion configured to abut the annular face of the flanged seal element; and
a first interlocking surface formed on the interior surface at or near a proximal end the restraint, the first interlocking surface configured to engage a second interlocking surface associated with the port of the medical device, wherein engagement of the first interlocking surface with the second interlocking surface substantially secures the catheter relative to the port.
1 Assignment
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Accused Products
Abstract
Systems for coupling a catheter to a medical device port and methods for relieving stress on a catheter coupled to a medical device port. Exemplary systems may include both a seal attached at or near a proximal end of the catheter, and a tubular restraint. The restraint may include a first interlocking surface formed on the interior surface at or near the proximal end that engages a second interlocking surface associated with the port. The system may also include a locking sleeve to secure the restraint in the desired position. Exemplary methods may include: coupling the port to the proximal end of the catheter and associated seal; sliding the restraint over the seal; and engaging the first and second interlocking surfaces.
145 Citations
24 Claims
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1. A connection system for coupling a catheter to a port of a medical device, the system comprising:
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a seal attached at or near a proximal end of the catheter, the seal comprising a flanged seal element defining an annular face that is substantially normal to a longitudinal axis of the catheter; and
a tubular restraint configured to slide partially or completely over the seal, wherein the restraint comprises;
a contact portion located on an interior surface of the restraint, the contact portion configured to abut the annular face of the flanged seal element; and
a first interlocking surface formed on the interior surface at or near a proximal end the restraint, the first interlocking surface configured to engage a second interlocking surface associated with the port of the medical device, wherein engagement of the first interlocking surface with the second interlocking surface substantially secures the catheter relative to the port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for relieving stress on a catheter coupled to a port of a medical device, the method comprising:
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coupling the port to a proximal end of the catheter, wherein the proximal end comprises a flanged seal element defining an annular face substantially normal to a longitudinal axis of the catheter, and further wherein the flanged seal element defines an opening for receiving the port, the opening in fluid communication with a lumen of the catheter;
sliding a tubular restraint over the flanged seal element, wherein the restraint comprises;
a contact portion located on an interior surface of the restraint, the contact portion operable to abut the annular face of the flanged seal element; and
a first interlocking surface located on the interior surface at or near a proximal end of the restraint; and
engaging the first interlocking surface of the restraint with a second interlocking surface located on the port. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A connection system for coupling medical tubing to a port of a medical device, the system comprising:
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a catheter assembly comprising the medical tubing and a seal attached at or near a proximal end of the medical tubing, the seal comprising;
a flanged seal element defining an annular face that is substantially normal to a longitudinal axis of the medical tubing; and
a tapered sealing portion extending distally from the annular face of the flanged seal element;
a tubular restraint configured to slide partially or completely over the seal, wherein the restraint comprises;
a contact portion located on an interior surface of the restraint, the contact portion configured to abut the annular face of the flanged seal element; and
a first interlocking surface formed on the interior surface at or near a proximal end the restraint, the first interlocking surface configured to engage a second interlocking surface associated with the port of the medical device, wherein engagement of the first interlocking surface with the second interlocking surface substantially secures the medical tubing relative to the port; and
a locking sleeve configured to surround the restraint, wherein the locking sleeve is securable relative to the restraint. - View Dependent Claims (23, 24)
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Specification