Perfusion device for viscera and kidneys
The novel perfusion device addresses organ ischemia in complex surgeries by providing simultaneous visceral and renal perfusion, enhancing surgical safety and efficiency.
Patent Information
- Application Number
- CN202421088767.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-05-17
AI Technical Summary
Existing external circulation surgery cannot complete the total thoracic and abdominal aorta replacement in a short period of time, resulting in ischemia of the related organs, which may lead to surgical failure and complications.
An internal organ and renal perfusion device is designed, including the first catheter, the first branch, the second branch, the second catheter, the third branch and the fourth branch, which are connected to the membranous lung, the superior mesenteric artery, the inferior mesenteric artery, the left renal artery and the right renal artery respectively. The perfusion of arterial blood and crystal protective fluid is achieved through the catheter system to ensure blood supply and protection of the organs.
It extends the ischemia time tolerate surgery, protects organs, reduces the occurrence of complications, is simple to operate, and is suitable for widespread promotion.
Smart Images
Figure CN223095889U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to an internal organ and kidney perfusion device. Background Art
[0002] In recent years, my country's extracorporeal circulation surgery has developed rapidly, especially in some very difficult surgical procedures, which have been continuously developed and have made great progress. For example, total thoracic and abdominal aorta replacement, which was almost a surgical taboo in the past, has made great progress now. However, due to the large surgical wound of total thoracic and abdominal aorta replacement, and the need to block the thoracic and abdominal aorta in stages during the operation, the operation time is long, and the total thoracic and abdominal aorta replacement cannot be completed in a short time using conventional extracorporeal circulation surgical equipment, which inevitably causes ischemia of related organs. If the measures are not taken properly, it will directly lead to surgical failure and complications, including death, multiple organ failure and paraplegia, etc. Utility Model Content
[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the extracorporeal circulation surgery in the prior art cannot complete the total thoracic and abdominal aorta replacement in a short period of time, which inevitably causes ischemia of related organs and even leads to surgical failure and complications, thereby providing a visceral and kidney perfusion device.
[0004] In order to solve the above problems, the utility model provides a visceral and kidney perfusion device, comprising:
[0005] A first catheter, one end of which is connected to the membrane lung;
[0006] A first branch tube and a second branch tube are connected in parallel to the other end of the first catheter, the first branch tube is suitable for communicating with the superior mesenteric artery, and the second branch tube is suitable for communicating with the inferior mesenteric artery;
[0007] A second conduit, one end of which is connected to the crystal protection liquid container through a liquid pump;
[0008] The third branch tube and the fourth branch tube are connected in parallel to the other end of the second catheter. The third branch tube is suitable for communicating with the left renal artery, and the fourth branch tube is suitable for communicating with the right renal artery.
[0009] Optionally, the first conduit, the first branch pipe and the second branch pipe have the same diameter.
[0010] Optionally, the diameters of the first conduit, the first branch tube and the second branch tube are 6 mm.
[0011] Optionally, the ends of the first branch tube and the second branch tube are both provided with a Frey catheter.
[0012] Optionally, the second conduit, the third branch pipe and the fourth branch pipe have the same diameter.
[0013] Optionally, the diameters of the second catheter, the third branch pipe, and the fourth branch pipe are 6 mm.
[0014] Optionally, Foley catheters are provided at the ends of the third branch pipe and the fourth branch pipe.
[0015] Optionally, a first one-way valve is provided on the first catheter, and a second one-way valve is provided on the second catheter.
[0016] Optionally, a third catheter is provided between the liquid pump and the crystal protective liquid container. One end of the third catheter is communicated with the liquid pump, and the other end has a fifth branch pipe and a sixth branch pipe; the crystal protective liquid container includes a first container and a second container. The first container is communicated with the fifth branch pipe, and the second container is communicated with the sixth branch pipe.
[0017] The utility model has the following advantages:
[0018] The viscera and kidney perfusion device provided by the utility model includes a first catheter, a first branch pipe, a second branch pipe, a second catheter, a third branch pipe, and a fourth branch pipe. One end of the first catheter is communicated with a membrane lung. The first branch pipe and the second branch pipe are connected in parallel at the other end of the first branch pipe. The first branch pipe is adapted to be communicated with the superior mesenteric artery, and the second branch pipe is adapted to be communicated with the inferior mesenteric artery. One end of the second catheter is communicated with a crystal protective liquid container through a liquid pump. The third branch pipe and the fourth branch pipe are connected in parallel at the other end of the second catheter. The third branch pipe is adapted to be communicated with the left renal artery, and the fourth branch pipe is adapted to be communicated with the right renal artery.
[0019] During the operation, one end of the first catheter can be connected to the outlet of the membrane lung, that is, the arterial blood in the membrane oxygenator is led out by the first catheter, and then the superior mesenteric artery and the inferior mesenteric artery are respectively perfused by the first branch pipe and the second branch pipe at the other end, so as to ensure the blood supply of the spinal cord and viscera, extend the surgical tolerance of ischemia time, and thus protect the viscera. One end of the second catheter can be connected to the outlet of the crystal protective liquid container, that is, the crystal protective liquid is led out to the third branch pipe and the fourth branch pipe by the second catheter, and the third branch pipe and the fourth branch pipe respectively perfuse the left renal artery and the right renal artery, so as to protect the kidneys and reduce the occurrence of complications. The viscera and kidney perfusion device has a simple operation mode, is easy to produce and manufacture, and is suitable for wide promotion. Description of the Drawings
[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.
[0021] Figure 1 shows a schematic structural diagram of the viscera and kidney perfusion device in this embodiment;
[0022] Description of the reference numerals in the drawings:
[0023] 11. First catheter; 111. First one-way valve; 12. First branch pipe; 13. Second branch pipe; 2. Membrane lung; 31. Second catheter; 311. Second one-way valve; 32. Third branch pipe; 33. Fourth branch pipe; 4. Liquid pump; 51. First container; 52. Second container; 6. Foley catheter; 71. Third catheter; 72. Fifth branch pipe; 73. Sixth branch pipe. Detailed implementation manners
[0024] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0028] Such as Figure 1As shown, in this embodiment, the utility model provides a visceral and kidney perfusion device, including: a first catheter 11, a first branch tube 12, a second branch tube 13, a second catheter 31, a third branch tube 32 and a fourth branch tube 33.
[0029] One end of the first catheter 11 is connected to the membrane lung 2 for conducting oxygenated arterial blood.
[0030] The first branch tube 12 and the second branch tube 13 are connected in parallel to the other end of the first catheter 11. The first catheter 11, the first branch tube 12 and the second branch tube 13 are connected in the form of a tee, and the arterial blood in the first catheter 11 can enter the first branch tube 12 and the second branch tube 13 respectively. The first branch tube 12 is suitable for communicating with the superior mesenteric artery, and the second branch tube 13 is suitable for communicating with the inferior mesenteric artery, thereby facilitating perfusion to the superior mesenteric artery and the inferior mesenteric artery respectively, thereby ensuring blood supply to the spinal cord and internal organs. The perfusion can continue until the blood vessels are anastomosed, and the perfusion flow rate can be 0.5L / min.
[0031] One end of the second conduit 31 is connected to the crystal protection liquid container through the liquid pump 4. The liquid pump 4 can pump the crystal protection liquid into the second conduit 31.
[0032] The third branch 32 and the fourth branch 33 are connected in parallel to the other end of the second catheter 31. The second catheter 31, the third branch 32 and the fourth branch 33 are connected in the form of a tee. The crystal protection solution in the second catheter 31 can enter the third branch 32 and the fourth branch 34 respectively. The third branch 32 is suitable for communicating with the left renal artery, and the fourth branch 33 is suitable for communicating with the right renal artery, thereby facilitating the perfusion of the crystal protection solution into the left renal artery and the right renal artery respectively, thereby protecting the kidneys. The first perfusion flow rate of the crystal protection solution can be 300 ml / min, which lasts for 2 minutes. As the operation proceeds, the perfusion is performed every 10 minutes, and the perfusion flow rate can be 150 to 200 ml / min, which lasts for 2 minutes until the renal blood vessels are anastomosed.
[0033] During the operation, one end of the first catheter 11 can be connected to the outlet of the membrane lung 2, that is, the arterial blood in the membrane oxygenator is led out by the first catheter 11, and then the first branch 12 and the second branch 13 at the other end are used to perfuse to the superior mesenteric artery and the inferior mesenteric artery respectively, so as to ensure the blood supply to the spinal cord and internal organs, prolong the surgical tolerance ischemia time, and thus protect the internal organs. One end of the second catheter 31 can be connected to the outlet of the crystal protection liquid container through the liquid pump 4, that is, the crystal protection liquid is led out to the third branch 32 and the fourth branch 33 by the second catheter 31, and the third branch 32 and the fourth branch 33 are respectively perfused into the left renal artery and the right renal artery, so as to protect the kidneys and reduce the occurrence of complications. The visceral and kidney perfusion device is simple to operate, easy to produce and manufacture, and suitable for wide promotion.
[0034] In this embodiment, the formula of the crystal protective solution can be Ringer's lactate solution, 15% KCl, 20% mannitol, and furosemide. Among them, the Ringer's lactate solution is 500 ml, 15% KCl is 3 ml, 20% mannitol is 22 ml, and furosemide is 2.5 mg.
[0035] As Figure 1 shown, in this embodiment, the diameters of the first catheter 11, the first branch pipe 12, and the second branch pipe 12 are the same. Such a setting can ensure that the liquid pressures in the first branch pipe 12 and the second branch pipe 13 are the same, and further ensure that the blood flow rates in the first branch pipe 12 and the second branch pipe 13 are the same.
[0036] As Figure 1 shown, in this embodiment, the diameters of the first catheter 11, the first branch pipe 12, and the second branch pipe 13 are 6 mm. Setting the diameter to 6 mm is beneficial for regulating the flow rate.
[0037] As Figure 1 shown, in this embodiment, Foley catheters 6 are provided at the ends of the first branch pipe 12 and the second branch pipe 13. 12F Foley catheters can be selected, and then two 12F Foley catheters are respectively inserted into the superior mesenteric artery and the inferior mesenteric artery.
[0038] As Figure 1 shown, in this embodiment, the diameters of the second catheter 31, the third branch pipe 32, and the fourth branch pipe 33 are the same. Such a setting can ensure that the liquid pressures in the third branch pipe 32 and the fourth branch pipe 33 are the same, and further ensure that the liquid flow rates in the third branch pipe 32 and the fourth branch pipe 3 are the same.
[0039] As Figure 1 shown, in this embodiment, the diameters of the second catheter 31, the third branch pipe 32, and the fourth branch pipe 33 are 6 mm, thus facilitating the regulation of the liquid flow rate.
[0040] As Figure 1 shown, in this embodiment, Foley catheters 6 are provided at the ends of the third branch pipe 32 and the fourth branch pipe 33. 14F Foley catheters can be selected, and then two 14F Foley catheters are respectively inserted into the left renal artery and the right renal artery.
[0041] As Figure 1 shown, in this embodiment, a first one-way valve 111 is provided on the first catheter 11. The first one-way valve 111 can prevent blood from flowing back. A second one-way valve 311 is provided on the second catheter 31. The second one-way valve 311 can prevent the crystal protective solution from flowing back.
[0042] As Figure 1As shown, in this embodiment, a third conduit 71 is provided between the liquid pump 4 and the crystal protection liquid container. One end of the third conduit 71 communicates with the liquid pump 4, and the other end has a fifth branch pipe 72 and a sixth branch pipe 73. The crystal protection liquid container includes a first container 51 and a second container 52. The first container 51 communicates with the fifth branch pipe 72, and the second container 52 communicates with the sixth branch pipe 73. The first container 51 and the second container 52 can be respectively used to store different component solutions of the crystal protection liquid. The solutions in the first container 51 and the second container 52 flow out through the fifth branch pipe 72 and the sixth branch pipe 73 respectively and then mix in the third conduit 71, so as to combine the crystal protection liquid, which is pumped into the second conduit 31 by the liquid pump 4.
[0043] In this embodiment, a drip kettle and a flow regulating valve may be provided on the fifth branch pipe 72 and / or the sixth branch pipe 73 to control the liquid flow rate flowing out of the first container 51 and / or the second container 52.
[0044] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.
Claims
1. A visceral and renal perfusion device, characterized in that, Including: A first catheter (11) with one end communicating with a membrane lung (2); A first branch pipe (12) and a second branch pipe (13) which are connected in parallel to the other end of the first catheter (11), the first branch pipe (12) being adapted to communicate with the superior mesenteric artery, and the second branch pipe (13) being adapted to communicate with the inferior mesenteric artery; A second catheter (31) with one end communicating with a crystal protective fluid container through a liquid pump (4); A third branch pipe (32) and a fourth branch pipe (33) which are connected in parallel to the other end of the second catheter (31), the third branch pipe (32) being adapted to communicate with the left renal artery, and the fourth branch pipe (33) being adapted to communicate with the right renal artery.
2. The visceral and renal perfusion device according to claim 1, characterized in that, The first catheter (11), the first branch pipe (12) and the second branch pipe (13) have the same pipe diameter.
3. The visceral and renal perfusion device according to claim 2, wherein The pipe diameter of the first catheter (11), the first branch pipe (12) and the second branch pipe (13) is 6 mm.
4. The visceral and renal perfusion device according to claim 2, characterized in that, Fre catheter is provided at the end of each of the first branch pipe (12) and the second branch pipe (13).
5. The visceral and renal perfusion device according to claim 1, characterized in that, The second catheter (31), the third branch pipe (32) and the fourth branch pipe (33) have the same pipe diameter.
6. The visceral and renal perfusion device according to claim 4, characterized in that, The pipe diameter of the second catheter (31), the third branch pipe (32) and the fourth branch pipe (33) is 6 mm.
7. The visceral and renal perfusion device according to claim 5, characterized in that, Fre catheter is provided at the end of each of the third branch pipe (32) and the fourth branch pipe (33).
8. The visceral and renal perfusion device according to claim 1, characterized in that A first one-way valve (111) is provided on the first catheter (11), and a second one-way valve is provided on the second catheter (31).
9. The visceral and renal perfusion device according to claim 1, characterized in that A third catheter (71) is provided between the liquid pump (4) and the crystal protective fluid container. One end of the third catheter (71) communicates with the liquid pump (4), and the other end has a fifth branch pipe (72) and a sixth branch pipe (73); the crystal protective fluid container includes a first container and a second container, the first container communicates with the fifth branch pipe (72), and the second container communicates with the sixth branch pipe (73).