Dialysis blood tubing set
First Claim
1. A combination pressure pod and access site apparatus for use in a medical tubing set comprising:
- a pressure sensing chamber having a pressure measuring space;
a measured fluid chamber for receiving fluid;
a pressure transmissive diaphragm sealingly separating the pressure measuring space from the measured fluid chamber wherein the diaphragm prevents received fluid from flowing into the pressure measuring space;
an access site in fluid communication with the measured fluid chamber; and
a septum forming a portion of the access site that permits injecting fluids into, and withdrawing fluids from, the measured fluid chamber through the access site.
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0 Petitions
Accused Products
Abstract
A combination pressure pod and access site apparatus is suitable for use in a medical tubing set. The combination pressure pod and access site comprises a pressure sensing chamber and a measured fluid chamber separated by a pressure transmissive diaphragm. An access site having a needle or needle-less septum is in fluid communication with the measured fluid chamber and permits and withdrawing fluids from, the measured fluid chamber through the access site. One or more of the combination pressure sites and access sites may be provided in a simplified blood tubing set for an extracorporeal blood treatment apparatus, such as a hemodialysis apparatus.
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Citations
20 Claims
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1. A combination pressure pod and access site apparatus for use in a medical tubing set comprising:
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a pressure sensing chamber having a pressure measuring space; a measured fluid chamber for receiving fluid; a pressure transmissive diaphragm sealingly separating the pressure measuring space from the measured fluid chamber wherein the diaphragm prevents received fluid from flowing into the pressure measuring space; an access site in fluid communication with the measured fluid chamber; and a septum forming a portion of the access site that permits injecting fluids into, and withdrawing fluids from, the measured fluid chamber through the access site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 17, 18)
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8. Blood tubing set apparatus for use with an extracorporeal blood treatment apparatus comprising:
at least one combination pressure pod and access site for use in a medical tubing set comprising; a pressure sensing chamber having a pressure measuring space; a measured fluid chamber for receiving fluid; a pressure transmissive diaphragm sealingly separating the pressure measuring space from the measured fluid chamber wherein the diaphragm prevents received fluid from flowing into the pressure measuring space; an access site in fluid communication with the measured fluid chamber; and a septum forming a portion of the access site that permits injecting fluids into, and withdrawing fluids from, the measured fluid chamber through the access site. - View Dependent Claims (9, 10, 11, 19, 20)
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12. A blood tubing set apparatus for use with an extracorporeal blood treatment apparatus comprising:
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a first tubing segment having a first combination pressure pod and access site interposed therein, said first combination pressure pod and access site comprising; a first pressure sensing chamber having a first pressure measuring space; a first measured fluid chamber for receiving fluid; a first pressure transmissive diaphragm sealingly separating the first pressure measuring space from the first measured fluid chamber wherein the first diaphragm prevents received fluid from flowing into the first pressure measuring space; a first access site in fluid communication with the first measured fluid chamber; and a first septum forming a portion of the first access site that permits injecting fluids into, and withdrawing fluids from, the first measured fluid chamber through the first access site; and a second tubing segment having a second combination pressure pod and access site interposed therein, said second combination pressure pod and access site comprising; a second pressure sensing chamber having a second pressure measuring space; a second measured fluid chamber for receiving fluid; a second pressure transmissive diaphragm sealingly separating the second pressure measuring space from the second measured fluid chamber wherein the second diaphragm prevents received fluid from flowing into the second pressure measuring space; a second access site in fluid communication with the second measured fluid chamber; and a second septum forming a portion of the second access site that permits injecting fluids into, and withdrawing fluids from, the second measured fluid chamber through the second access site. - View Dependent Claims (13, 14, 15, 16)
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Specification