US2015150240A1PendingUtilityA1
Evaluation and preservation solution
Est. expiryNov 3, 2020(expired)· nominal 20-yr term from priority
Inventors:Stig Steen
A01N 1/10A01N 1/126A01N 1/0226
63
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Claims
Abstract
An evaluation and preservation solution for human and animal organs, tissues and parts thereof is described, wherein it comprises serum albumin at a concentration of 55-105 g/L, a scavenger and coating compound, preferably dextran compounds and derivatives thereof having essentially the same structure at a concentration of 1-55 g/L weight, and a physiological serum concentration of salts and nutrients in a physiologically acceptable medium.
Claims
exact text as granted — not AI-modified1 . A method of preserving and evaluating a lung from a donor, the method comprising the steps of:
(i) harvesting the lung from the donor; (ii) placing the lung in a heart-lung machine; (iii) filling the lung with an evaluation and preservation solution; and (iv) evaluating at least one evaluation parameter of the lung; wherein the at least one evaluation parameter comprises measurement of at least one of endothelial function, ventilation/perfusion disorders, gas output, or surfactant function.
2 . The method of claim 1 , wherein the at least one evaluation parameter comprises measurement of the endothelial function.
3 . The method of claim 1 , wherein the at least one evaluation parameter comprises measurement of the ventilation/perfusion disorders.
4 . The method of claim 1 , wherein the at least one evaluation parameter comprises measurement of the gas output.
5 . The method of claim 1 , wherein the at least one evaluation parameter comprises measurement of the surfactant function.
6 . The method of claim 1 , wherein the at least one evaluation parameter further comprises measurement of at least one of blood gasses, vascular resistance, or lung compliance.
7 . The method of claim 1 , wherein the donor is a human non-heart beating donor.
8 . The method of claim 1 , wherein the heart-lung machine comprises a pump, an oxygen supply, an oxygenator, and a respirator.
9 . The method of claim 1 , wherein the evaluation of step (iv) is for deciding if the lung is acceptable for transplantation.
10 . The method of claim 1 , further comprising a step of:
(v) preserving the lung until transplantation.
11 . The method of claim 1 , further comprising a step of:
(vi) transplanting the lung into a receiver body.
12 . The method of claim 1 , wherein the evaluation and preservation solution comprises red blood cells and has an erythrocyte volume fraction of 15±5 vol %.
13 . A method of preserving and evaluating a lung from a donor, the method comprising the steps of:
(i) harvesting the lung from the donor; (ii) placing the lung in a heart-lung machine; (iii) filling the lung with an evaluation and preservation solution; and (iv) evaluating at least one evaluation parameter of the lung; wherein the at least one evaluation parameter comprises measurement of at least one of endothelial function, ventilation/perfusion disorders, gas output, or surfactant function; and further wherein the evaluation and preservation solution comprises serum albumin at a concentration of 55 to 105 g/L.
14 . The method of claim 13 , wherein the at least one evaluation parameter further comprises measurement of at least one of blood gasses, vascular resistance, or lung compliance.
15 . The method of claim 13 , wherein the donor is a human non-heart beating donor.
16 . The method of claim 13 , further comprising a step of:
(v) preserving the lung until transplantation.
17 . The method of claim 13 , further comprising a step of:
(vi) transplanting the lung into a receiver body.
18 . The method of claim 13 , wherein the evaluation and preservation solution further comprises red blood cells and has an erythrocyte volume fraction of 15±5 vol %.
19 . A method of preserving and evaluating a lung from a donor, the method comprising the steps of:
(i) harvesting the lung from the donor; (ii) placing the lung in a heart-lung machine; (iii) filling the lung with an evaluation and preservation solution; and (iv) evaluating at least one evaluation parameter of the lung; wherein the at least one evaluation parameter comprises measurement of at least one of endothelial function, ventilation/perfusion disorders, gas output, or surfactant function; and further wherein the evaluation and preservation solution comprises a colloidosmotically active substance that is too large to pass out through semipermeable capillary walls of the donor and that is present at a concentration that provides the oncotic pressure of serum albumin at a concentration of 55-105 g/L.
20 . The method of claim 19 , wherein the at least one evaluation parameter further comprises measurement of at least one of blood gasses, vascular resistance, or lung compliance.
21 . The method of claim 19 , wherein the donor is a human non-heart beating donor.
22 . The method of claim 19 , further comprising a step of:
(v) preserving the lung until transplantation.
23 . The method of claim 19 , further comprising a step of:
(vi) transplanting the lung into a receiver body.
24 . The method of claim 19 , wherein the colloidosmotically active substance has a similar size, shape, and charge as serum albumin.
25 . The method of claim 19 , wherein the evaluation and preservation solution further comprises red blood cells and has an erythrocyte volume fraction of 15±5 vol %.Join the waitlist — get patent alerts
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