Disposable simple in-vitro transplantation renal artery perfusion device

Abstract

The invention relates to the technical field of medical instruments, and discloses a disposable simple in-vitro transplantation renal artery perfusion apparatus which comprises a buckle seat, a panel and a perfusion tube, a perfusion tube mounting hole is formed in the middle of the panel, the perfusion tube is connected in the perfusion tube mounting hole in the middle of the panel in a penetrating mode, one end of the perfusion tube is connected with a perfusion tube, and the other end of the perfusion tube is connected with a drainage tube. The other end is inserted into the abdominal aorta; the buckle base comprises a bottom plate and side plates arranged at the two ends of the two sides of the bottom plate, a penetrating hole is formed in the middle of the bottom plate, and clamping grooves are formed in the inner sides of the side plates. The disposable simple in-vitro transplantation renal artery perfusion apparatus can be effectively fixed at an opening of an artery, perfusion can be carried out by connecting an infusion tube, assistance of other people is not needed, fixation is good, perfusate cannot leak out to cause waste, and intima of the artery cannot be damaged to cause series complications.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a disposable, simplified in vitro renal artery perfusion device. Background Technology

[0002] Allogeneic kidney transplantation, as the most effective treatment for end-stage renal disease, is now widely performed in clinical centers. Before kidney transplantation, the kidney needs to be removed, trimmed, and perfused. The purposes of perfusion are twofold: first, to drain excess blood from the kidney and prevent microthrombus formation after transplantation; and second, to check for leaks and thoroughly ligate the small blood vessels and lymphatic vessels around the renal pedicle to prevent postoperative bleeding and exudation.

[0003] Traditional perfusion methods involve the doctor holding the IV tubing and inserting the tip into the renal artery for direct perfusion. The drawbacks of this method are:

[0004] 1. Requires multiple people to assist, which is labor-intensive; many institutions recommend immediate antibiotic instillation before transplantation, which also requires the assistance of an assistant;

[0005] 2. Handheld perfusion has poor stability and fixation, and the arterial perfusion fluid is prone to leakage, resulting in waste;

[0006] 3. Due to different holding force, the tip of the IV tubing is prone to damage to the arterial intima, causing arterial injury, postoperative complications such as arterial stenosis and thrombosis.

[0007] 4. Many transplant centers are accustomed to performing polymyxin infusion before surgery. Usually, the staff are divided into two groups: one group prepares the recipient and the other group performs infusion of the transplanted kidney.

[0008] A good perfusion device can save manpower and improve efficiency. Therefore, we propose a disposable, simple extracorporeal renal artery perfusion device. Summary of the Invention

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this invention provides a disposable, simple extracorporeal renal artery perfusion device that offers advantages such as good fixation, no need for assistance from others, no leakage of perfusion fluid causing waste, and no damage to the arterial intima that could lead to a series of complications.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, the present invention provides the following technical solution:

[0013] A disposable, simple external transplant renal artery perfusion device includes a snap-fit ​​seat, a panel, and a perfusion tube. The panel has a perfusion tube mounting hole in the middle, and the perfusion tube is connected through the perfusion tube mounting hole in the middle of the panel. One end of the perfusion tube is connected to an infusion tube, and the other end is inserted into the abdominal aorta.

[0014] The buckle seat includes a base plate and side plates at both ends of the base plate. The base plate has a perforation in the middle, and the side plates have a locking groove on the inner side. In use, the abdominal aortic valve passes through the perforation, and the outer wall of the abdominal aortic valve is laid flat on the upper surface of the base plate. The lower end of the infusion tube is inserted into the artery, and the panel is pressed so that both ends of the panel are locked into the locking groove of the buckle seat. The abdominal aortic valve and the infusion device are fixed by the compression of the panel and the buckle seat.

[0015] Preferably, the diameter of the perforation is larger than the diameter of the infusion tube mounting hole, so as to facilitate the abdominal aortic valve to pass through the perforation.

[0016] Preferably, a rubber pad is provided on the inner wall of the perforation of the base plate, and the upper end of the rubber pad extends beyond the upper surface of the base plate. When the abdominal aortic valve passes through the perforation for fixation, the rubber pad can prevent the abdominal aortic valve from sliding between the base plate and the panel.

[0017] Preferably, the buckle seat is made of elastic plastic.

[0018] Preferably, the upper end of the side panel is provided with a first inclined surface, which slopes downward toward the middle of the buckle seat. When the panel is pressed down, it slides into the buckle groove of the side panel through the first inclined surface.

[0019] Preferably, the lower end of the side panel is provided with a second inclined surface, and the end of the second inclined surface is fixedly connected to the side of the bottom plate, so that the buckle seat is elastic as a whole, thereby facilitating the insertion and separation of the panel.

[0020] Preferably, the top of the slot of the side plate is provided with an inclined block, and the inclined surface of the inclined block is provided with multiple stepped grooves. When the panel is inserted into the slot, the side plates on both sides move towards each other under the action of elastic force, and the inclined block will contact the side of the panel. According to the thickness of the abdominal aortic valve, the side of the panel is inserted into different stepped grooves to ensure the pressure of the side plate on the panel and increase the fixation of the abdominal aortic valve.

[0021] Preferably, the upper part of the outer side wall of the infusion tube is provided with multiple lugs, which match the threaded groove inside the infusion tube connector. In use, the lugs are screwed into the threaded groove to make the infusion tube and the infusion tube connector tightly connected.

[0022] Preferably, the infusion tube is a transparent plastic tube, and the lower end of the infusion tube is connected to a conical head with rounded corners. The conical head facilitates the insertion of the infusion tube into the abdominal aorta and can prevent damage to the intima of the abdominal aorta.

[0023] Preferably, the two sides of the panel are also provided with retaining edges, which are engaged in the retaining grooves when the panel is snapped together.

[0024] (III) Beneficial Effects

[0025] Compared with the prior art, the present invention provides a disposable, simple extracorporeal renal artery perfusion device, which has the following advantages:

[0026] 1. This disposable, simple external transplant renal artery perfusion device can be effectively fixed at the artery opening. Perfusion can be performed simply by connecting the infusion tube without the need for assistance from others. It has good fixation, and the perfusion fluid will not leak out and cause waste, nor will it damage the arterial intima and cause a series of complications.

[0027] 2. This disposable, simple external transplant renal artery perfusion device features an inclined block at the top of the slot on the side plate, with multiple stepped grooves on the inclined surface of the block. This allows the perfusion device to allow the side of the panel to be inserted into different stepped grooves according to the thickness of different abdominal aortic valves, ensuring the pressure of the side plate on the panel and increasing the fixation of the abdominal aortic valve.

[0028] 3. This disposable, simple external transplant renal artery perfusion device features a rubber pad on the inner wall of the perforation in the base plate. The upper end of the rubber pad extends beyond the upper surface of the base plate. When the abdominal aortic valve passes through the perforation for fixation, the rubber pad prevents the abdominal aortic valve from sliding between the base plate and the plate, increasing the connection strength between the abdominal aortic valve and the perfusion device.

[0029] 4. This disposable, simple external transplant renal artery perfusion device is detachably connected to the infusion tubing via a lug on the upper side of the perfusion tube and an infusion tubing connector, making the connection and disconnection of the perfusion device and the infusion tubing more convenient.

[0030] 5. This disposable, simple external transplant renal artery perfusion device is made of plastic, is low in cost, has a simple structure, is suitable for single use, and ensures safety during use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the buckle seat in this invention;

[0033] Figure 3 This is a schematic diagram of the panel structure in this invention;

[0034] Figure 4 This is a schematic diagram of the structure of the panel and the injection tube in this invention;

[0035] Figure 5 This is a front view of the buckle seat in this invention;

[0036] Figure 6 for Figure 5 Enlarged structural diagram of A in the middle;

[0037] Figure 7 This is a downward oblique view of the present invention;

[0038] Figure 8 This is a diagram showing the connection between the present invention and the infusion tube;

[0039] Figure 9 This is a schematic diagram showing the invention in use.

[0040] In the diagram: 1. Buckle seat; 2. Panel; 3. Infusion tube; 4. Infusion tubing; 5. Kidney; 6. Renal artery; 101. Side plate; 102. Base plate; 103. First inclined surface; 104. Inclined block; 105. Slot; 106. Second inclined surface; 107. Perforation; 108. Rubber pad; 201. Clip; 202. Infusion tube mounting hole; 301. Lug; 302. Conical head; 401. Infusion tubing connector; 402. Threaded groove. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0042] Please see Figure 1-9 A disposable, simple external transplant renal artery perfusion device includes a buckle seat 1, a panel 2, and an infusion tube 3. The buckle seat 1 is made of elastic plastic. The panel 2 has an infusion tube mounting hole 202 in the middle. The infusion tube 3 passes through and is connected to the infusion tube mounting hole 202 in the middle of the panel 2. One end of the infusion tube 3 is connected to the infusion tube 4, and the other end is inserted into the abdominal aorta.

[0043] The buckle seat 1 includes a base plate 102 and side plates 101 at both ends of the base plate 102. The base plate 102 has a perforation 107 in the middle and the side plates 101 have a groove 105 on the inner side. In use, the abdominal aortic valve passes through the perforation 107 and the outer wall of the abdominal aortic valve is laid flat on the upper surface of the base plate 102. The lower end of the infusion tube 3 is inserted into the artery. The panel 2 is pressed so that both ends of the panel 2 are locked into the groove 105 of the buckle seat 1. The abdominal aortic valve and the infusion device are fixed by the compression of the panel 2 and the buckle seat 1.

[0044] The diameter of the perforation 107 is larger than the diameter of the infusion tube mounting hole 202, so that the abdominal aortic valve can pass through the perforation 107.

[0045] A rubber pad 108 is provided on the inner wall of the perforation 107 of the base plate 102. The upper end of the rubber pad 108 extends beyond the upper surface of the base plate 102. When the abdominal aortic valve passes through the perforation 107 for fixation, the rubber pad 108 can prevent the abdominal aortic valve from sliding between the base plate 102 and the panel 2.

[0046] The upper end of the side panel 101 is provided with a first inclined surface 103. The first inclined surface 103 is inclined downward towards the middle of the buckle seat 1. When the panel 2 is pressed down, it slides into the slot 105 of the side panel 101 through the first inclined surface 103.

[0047] The lower end of the side panel 101 is provided with a second inclined surface 106. The end of the second inclined surface 106 is fixedly connected to the side of the bottom plate 102, so that the buckle seat 1 is elastic as a whole, thereby facilitating the insertion and separation of the panel 2.

[0048] The top of the slot 105 of the side plate 101 is provided with an inclined block 104. The inclined surface of the inclined block 104 is provided with multiple stepped grooves. When the panel 2 is inserted into the slot 105, the side plates 101 on both sides move towards each other under the action of elasticity. The inclined block 104 will contact the side of the panel 2. According to the thickness of the abdominal aortic valve, the side of the panel 2 is inserted into different stepped grooves to ensure the pressure of the side plate 101 on the panel 2 and increase the fixation of the abdominal aortic valve.

[0049] The upper part of the outer wall of the infusion tube 3 is provided with multiple lugs 301. The lugs 301 match the threaded grooves 402 inside the infusion tube connector 401. When in use, the lugs 301 are screwed into the threaded grooves 402 so that the infusion tube 3 and the infusion tube connector 401 are tightly connected.

[0050] The infusion tube 3 is a transparent plastic tube, and the lower end of the infusion tube 3 is connected to a conical head 302. The lower end of the conical head 302 is rounded, which facilitates the insertion of the infusion tube 3 into the abdominal aorta and can prevent the infusion tube 3 from damaging the intima of the abdominal aorta.

[0051] The two sides of panel 2 are also provided with clips 201. When panel 2 is snapped in, clips 201 are snapped in the slot 105.

[0052] Working principle: When using this invention, the renal artery 6 is first passed through the perforation 107 of the base plate 102. The abdominal aortic valve at the end of the renal artery 6 is laid flat on the upper surface of the base plate 101 of the buckle seat 1. The perfusion tube 3 is installed on the panel 2, and the lower end of the perfusion tube 3 is inserted into the artery. The panel 2 is pressed so that both ends of the panel 2 slide into the slots 105 of the buckle seat 1 along the first inclined surface 103. The abdominal aortic valve and the perfusion device are fixed by the compression of the panel 2 and the buckle seat 1. Then, the upper end of the perfusion tube 3 is connected to the infusion tube connector 401 of the infusion tube 4, so that the renal artery perfusion device can be effectively fixed at the arterial opening. This disposable simple external transplant renal artery perfusion device is low in cost, simple in structure, suitable for single use, ensures the safety of use, does not require the assistance of others, has good fixation, does not leak the perfusion fluid and cause waste, and will not damage the arterial intima and cause a series of complications.

[0053] By providing an inclined block 104 at the top of the slot 105 of the side plate 101, and providing multiple stepped grooves on the inclined surface of the inclined block 104, the perfusion device can be adjusted according to the thickness of different abdominal aortic valves, allowing the side of the panel 2 to be inserted into different stepped grooves, ensuring the pressure of the side plate 101 on the panel 2 and increasing the fixation of the abdominal aortic valve.

[0054] By providing a rubber pad 108 on the inner wall of the perforation 107 of the base plate 102, with the upper end of the rubber pad 108 extending beyond the upper surface of the base plate 102, the rubber pad 108 can prevent the abdominal aortic valve from sliding between the base plate 102 and the panel 2 when the abdominal aortic valve passes through the perforation 107 for fixation, thereby increasing the connection strength between the abdominal aortic valve and the infusion device.

[0055] The lug 301 on the upper side wall of the infusion tube 3 and the infusion tube connector 401 on the infusion tube 4 are detachably connected, making it more convenient to connect and disconnect the infusion device and the infusion tube 4.

Claims

1. A disposable, simple extracorporeal renal artery perfusion device, comprising a locking seat (1), a panel (2), and a perfusion tube (3), characterized in that: The panel (2) has an infusion tube mounting hole (202) in the middle, and the infusion tube (3) is connected through the infusion tube mounting hole (202) in the middle of the panel (2). One end of the infusion tube (3) is connected to the infusion tube (4), and the other end is inserted into the abdominal aorta. The buckle seat (1) includes a base plate (102) and side plates (101) at both ends on both sides of the base plate (102). The base plate (102) has a perforation (107) in the middle and the side plates (101) have a groove (105) on the inner side. In use, the abdominal aortic valve passes through the perforation (107) and the outer wall of the abdominal aortic valve is laid flat on the upper surface of the base plate (102). The lower end of the infusion tube (3) is inserted into the artery. The panel (2) is pressed so that the two ends of the panel (2) are locked into the groove (105) of the buckle seat (1). The abdominal aortic valve and the infusion device are fixed by the compression of the panel (2) and the buckle seat (1).

2. The disposable, simplified in vitro renal artery perfusion device according to claim 1, characterized in that: The diameter of the perforation (107) is larger than the diameter of the injection pipe mounting hole (202).

3. The disposable, simplified in vitro renal artery perfusion device according to claim 2, characterized in that: A rubber pad (108) is provided on the inner wall of the perforation (107) of the base plate (102). The upper end of the rubber pad (108) extends beyond the upper surface of the base plate (102). When the abdominal aortic valve passes through the perforation (107) for fixation, the rubber pad (108) can prevent the abdominal aortic valve from sliding between the base plate (102) and the panel (2).

4. The disposable, simplified in vitro renal artery perfusion device according to claim 3, characterized in that: The buckle seat (1) is made of elastic plastic.

5. The disposable, simplified in vitro renal artery perfusion device according to claim 4, characterized in that: The upper end of the side plate (101) is provided with a first inclined surface (103), which is inclined downward toward the middle of the buckle seat (1). When the panel (2) is pressed down, it slides into the slot (105) of the side plate (101) through the first inclined surface (103).

6. The disposable, simplified extracorporeal renal artery perfusion device according to claim 5, characterized in that: The lower end of the side plate (101) is provided with a second inclined surface (106), and the end of the second inclined surface (106) is fixedly connected to the side of the bottom plate (102), so that the buckle seat (1) is elastic as a whole.

7. The disposable simplified extracorporeal renal artery perfusion device according to claim 6, characterized in that: The top of the slot (105) of the side plate (101) is provided with an inclined block (104). The inclined surface of the inclined block (104) is provided with multiple stepped grooves. When the panel (2) is inserted into the slot (105), the side plates (101) on both sides move closer to each other under the action of elastic force. The inclined block (104) will contact the side of the panel (2). According to the thickness of the abdominal aortic valve, the side of the panel (2) is inserted into different stepped grooves to ensure the pressure of the side plate (101) on the panel (2).

8. The disposable, simplified in vitro renal artery perfusion device according to claim 7, characterized in that: The upper part of the outer wall of the infusion tube (3) is provided with a plurality of lugs (301). The lugs (301) match the threaded grooves (402) inside the infusion tube connector (401). When in use, the lugs (301) are screwed into the threaded grooves (402) so that the infusion tube (3) and the infusion tube connector (401) are tightly connected.

9. The disposable simplified extracorporeal renal artery perfusion device according to claim 8, characterized in that: The infusion tube (3) is a transparent plastic tube, and a conical head (302) is connected to the lower end of the infusion tube (3), and the lower end of the conical head (302) is rounded.

10. The disposable, simplified in vitro renal artery perfusion device according to claim 9, characterized in that: The panel (2) is also provided with a retaining edge (201) on both sides. When the panel (2) is snapped in, the retaining edge (201) is snapped in the retaining groove (105).

Images