Kidney Bag with Rings for Laparoscopic Temperature Control
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Solution Overview
Problem
Current continuous refrigeration systems for kidney transplantation surgery, particularly in laparoscopic or robot-assisted procedures, face challenges in maintaining a low temperature environment for the donor kidney due to the lack of access and support structures, which can impact the kidney's survival rate.
Innovation Solution
A continuous refrigeration system comprising a kidney bag with an extracorporeal and intracorporal ring, a lead-out end, and a sealing mechanism that allows for the addition of crushed ice, facilitating the maintenance of a low temperature environment and easy handling of the kidney during surgery through a through circulation passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If laparoscopic or robot-assisted laparoscopic kidney transplantation is used, then surgical trauma is reduced and wound healing is improved, but it becomes difficult to maintain a low temperature environment for the kidney due to the small opening and lack of access passage
Solution Approach 1:
The patent introduces a kidney bag as an intermediary carrier that can be inserted through the laparoscopic access passage. The bag serves as a mediator between the external refrigeration system and the kidney inside the body cavity, enabling temperature control without requiring direct access to the kidney through large incisions.
Solution Approach 2:
The system segments the refrigeration function from the kidney itself by placing the kidney inside a separate bag structure. This allows the bag to be refrigerated independently while containing the kidney, solving the problem of maintaining low temperature through small laparoscopic openings.
2Object-affected harmful factors
If a kidney bag is inserted through a small laparoscopic opening, then surgical trauma is reduced, but it is difficult to provide support structures and access passages for the kidney to pass through
Solution Approach 1:
The kidney bag is designed with multiple functions: it serves as a carrier for the kidney, a support structure for maintaining position, a barrier for isolating the kidney from body fluids, and a conduit for temperature control. The bag integrates these functions into a single structure that can be inserted through small openings.
Solution Approach 2:
The kidney bag is made from flexible biological barrier film material that can be inserted through small laparoscopic openings. The flexible nature of the bag allows it to navigate through tight spaces while maintaining its structural integrity to support the kidney and enable refrigeration.
3Reliability
If the kidney is kept in a low temperature environment during surgery, then kidney survival rate is improved, but the complexity of the refrigeration system increases
Solution Approach 1:
The kidney bag system enables self-service refrigeration where the bag itself serves as the refrigeration container. The bag can be filled with ice or connected to a refrigeration circuit, allowing the kidney to be cooled without requiring complex external refrigeration equipment or multiple separate components.
Solution Approach 2:
The patent merges the carrier function and refrigeration function into a single kidney bag structure. By combining these functions, the system avoids the complexity of separate carrier devices and refrigeration systems, achieving reliable kidney temperature control with a simplified integrated design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system ensures the kidney remains in a continuous low temperature environment, simplifies the surgical process by providing a carrier for the kidney, and allows for convenient manipulation and refrigeration during the operation, enhancing the kidney's survival chances.
Implementation Method 1
the extracorporeal ring and the intracorporal ring are spaced on the kidney bag to support a partial length of the kidney bag to form a through circulation passage
Implementation Method 2
a bag mouth that allows the kidney and crushed ice to enter the interior of the kidney bag
Implementation Method 3
for refrigerating the kidney from the beginning of the kidney transplantation surgery to the opening of the renal arteries and veins
Data Source
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AI summary
The present invention relates to the technical field of medical devices, in particular to a continuous refrigeration system for kidney transplantation surgery, for refrigerating the kidney from the beginning of the kidney transplantation surgery to the opening of the renal arteries and veins, comprises: a kidney bag, an extracorporeal ring and an intracorporal ring, wherein one end of the kidney bag is provided with a bag mouth that allows the kidney and crushed ice to enter the interior of the kidney bag; wherein the extracorporeal ring and the intracorporal ring are spaced on the kidney bag, and wherein a lead-out end is provided both outside and inside the bottom of the kidney bag. In the invention, a partial length of the kidney bag is support to form the through circulation passage through which the kidney enters the kidney bag and thus obtaining a carrier for entering the human body, making the operation simple, convenient and fast. The lead-out end is provided so that the kidney bag can be adapted to laparoscopic surgery, and it is convenient to pull the kidney to the renal anastomosis by pulling the lead-out end outside the bottom of the kidney bag. Moreover, it is possible to pull the kidney bag outside the body by pulling the lead-out end inside the bottom of the kidney bag, and ensure that the donor kidney is in a continuous low temperature environment by adding crushed ice through the mouth of the bag several times.