Structure for maintaining three-dimensional aorta root for centrifugal heart perfusion

Abstract

The utility model provides a centrifugal heart perfusion aorta root three-dimensional structure, which comprises an external member, a fixing member and a suspension member, the lower end of the external member is provided with an opening, the external member is provided with a plurality of holes, the holes are communicated with the opening, the holes comprise perfusion holes, and the perfusion holes are communicated with the fixing member. When the lower end of the external member is inserted into the root of the aorta, the perfusion hole is exposed outside; the fixing piece surrounds the aorta root, and the fixing piece is opposite to the lower end of the sleeve piece; the suspension piece is connected with the sleeve piece, the aorta root is expanded by the sleeve piece, a normal three-dimensional shape is kept, and the perfusion effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal cardiac perfusion technology, and in particular to a three-dimensional structure for maintaining the aortic root during centrifugal cardiac perfusion. Background Technology

[0002] In cardiovascular surgery, especially during heart transplantation or donor heart preservation, maintaining the integrity of the heart structure is crucial. Centrifugal continuous cardiac perfusion is a common cardiac protection method that provides continuous blood flow during donor heart preservation to maintain myocardial viability.

[0003] In centrifugal cardiac perfusion, the aortic root needs to be expanded to allow perfusion into the aorta. Currently, the aortic root is mainly fixed with hemostatic forceps (see patent CN105325403B). However, the contact area between the hemostatic forceps and the aortic root is limited, meaning the aortic root cannot be fully expanded. This causes the aortic root to collapse, twist, or deform, thus affecting hemodynamics and perfusion efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a structure for maintaining the three-dimensionality of the aortic root during centrifugal cardiac perfusion, effectively maintaining the three-dimensionality of the aortic root and preventing its collapse or deformation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The three-dimensional structures maintaining the aortic root during centrifugal cardiac perfusion include:

[0007] The kit has an opening at its lower end and a plurality of holes on the kit that communicate with the opening. The holes include irrigation holes that are exposed when the lower end of the kit is inserted into the root of the aorta.

[0008] A fixation element, which surrounds the aortic root and is opposite to the lower end of the kit;

[0009] A suspension component, which is connected to the kit.

[0010] In a preferred embodiment, the kit includes:

[0011] Closed plate;

[0012] An annular plate, the lower end of which forms an opening and is inserted into the root of the aorta, and the upper end of which is connected to the closure plate.

[0013] In a preferred embodiment, the hole is provided on the closing plate and / or the annular plate.

[0014] In a preferred embodiment, the injection hole is disposed on the annular plate.

[0015] In a preferred embodiment, the hole includes a vent hole, which is disposed on the closing plate.

[0016] In a preferred embodiment, the hole includes a connecting hole disposed on the annular plate, the connecting hole being used to connect a pressure monitoring instrument.

[0017] In a preferred embodiment, the hole is configured as a tubular structure.

[0018] As a preferred embodiment, it also includes:

[0019] A cover body, which is detachably connected to the tubular structure.

[0020] In a preferred embodiment, one end of the suspension member is connected to the closing plate of the kit, and the other end of the suspension member is provided with a hook.

[0021] In a preferred embodiment, the number of suspension components is two.

[0022] Compared with existing technologies, this technical solution has the following advantages:

[0023] After the lower end of the kit is inserted into the aortic root, the aortic root is fully expanded and maintains its normal three-dimensional shape. At this time, perfusion is injected into the aortic root through the exposed perfusion port, which can achieve continuous perfusion to the heart. During the perfusion process, since the aortic root is always expanded by the kit, the aortic root is prevented from collapsing, twisting or deforming, which would affect the perfusion effect.

[0024] The fastener surrounds the aortic root and secures the lower end of the kit to the aortic root.

[0025] The aortic root can be lifted by the suspension device, further exposing the aortic root that has been stretched open by the kit, facilitating perfusion.

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the assembly of the kit and suspension components in the three-dimensional structure for maintaining the aortic root during centrifugal cardiac perfusion as described in this utility model.

[0028] Figure 2This is a schematic diagram of the fixing component in the three-dimensional structure of the aortic root for centrifugal cardiac perfusion as described in this utility model.

[0029] In the diagram: 100 kit, 100a opening, 100b hole, 100b1 filling hole, 100b2 vent hole, 100b3 connecting hole, 110 closing plate, 120 annular plate, 130 connecting ring, 200 fastener, 210 ring buckle, 220 first fastener, 230 second fastener, 300 suspension piece, 310 hook. Detailed Implementation

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] like Figure 1 and Figure 2 As shown, the three-dimensional structure for maintaining the aortic root during centrifugal cardiac perfusion includes:

[0032] The kit 100 has an opening 100a at its lower end and a plurality of holes 100b on its surface. The holes 100b communicate with the opening 100a. Each hole 100b includes an irrigation hole 100b1, which is exposed when the lower end of the kit 100 is inserted into the root of the aorta.

[0033] Fixation member 200, the fixation member 200 surrounding the aortic root, the fixation member 200 being opposite to the lower end of the kit 100;

[0034] Suspension component 300, which is connected to the kit 100.

[0035] After the lower end of the kit 100 is inserted into the aortic root, the aortic root is fully expanded. Perfusion is then introduced into the aortic root through the exposed perfusion port 100b1, achieving continuous perfusion centrifugation of the heart. During perfusion, because the aortic root is continuously expanded by the kit 100, collapse, twisting, or deformation of the aortic root is prevented, thus avoiding any impact on the perfusion effect. The fixing member 200 surrounds the aortic root, securing the lower end of the kit 100 to the aortic root. The suspension member 300 can suspend the aortic root for easy perfusion.

[0036] like Figure 1 As shown, the kit 100 includes:

[0037] Closed plate 110;

[0038] An annular plate 120 has an opening 100a at its lower end, and the lower end of the annular plate 120 is inserted into the root of the aorta. The upper end of the annular plate 120 is connected to the closure plate 110.

[0039] The annular plate 120 is hollow inside, so that the opening 100a is formed at the lower end of the annular plate 120. The upper end of the annular plate 120 is closed by the closing plate 110, which can increase the installation position and number of the holes 100b.

[0040] The hole 100b is provided on the closed plate 110 and / or the annular plate 120. Since the interior of the annular plate 120 is hollow, the hole 100b is connected to the interior of the annular plate 120 and the lower end of the annular plate 120, respectively.

[0041] An annular protrusion 121 is provided on the outer surface of the annular plate 120. The annular protrusion 121 is close to the lower end of the annular plate 120, so that the aortic root will not slip off when it is fitted onto the lower end of the annular plate 120. At this time, the fixing member 200 is located above or below the annular protrusion 121.

[0042] refer to Figure 1 The perfusion port 100b1 can be disposed on the annular plate 120. The perfusion port 100b1 is used to connect the perfusion catheter, which is connected to the perfusion device. After the perfusion device is started, the perfusion fluid passes sequentially through the perfusion catheter, the perfusion port 100b1, the interior of the annular plate 120, and the aortic root, realizing continuous perfusion of the centrifuged heart. In addition, the perfusion port 100b1 can fix the end of the perfusion catheter without the need for a separate structure for fixation, effectively reducing the use cost, while ensuring the stability of the fixation of the end of the perfusion catheter.

[0043] The perfusion catheter and the perfusion port 100b1 can be fixed by means of screwing, sleeve connection, etc., and a sealing ring can be set between them to improve the sealing performance. There can be multiple perfusion ports 100b1 to ensure uniform distribution of perfusion fluid and improve the myocardial protection effect.

[0044] refer to Figure 1 The hole 100b includes a connecting hole 100b3, which is disposed on the annular plate 120. The connecting hole 100b3 is used to connect a pressure monitoring instrument to monitor the injection pressure and ensure safety. Specifically, the connecting hole 100b3 and the pressure monitoring instrument are also connected via a conduit.

[0045] It should be noted that the connecting hole 100b3 and the injection hole 100b1 are staggered to prevent interference during use. In this embodiment, the connecting hole 100b3 and the injection hole 100b1 are staggered along the circumferential direction of the annular plate 120.

[0046] Continue to refer to Figure 1 The hole 100b includes an exhaust hole 100b2, which is disposed on the closing plate 110 for exhaust.

[0047] As can be seen from the above, by setting the injection hole 100b1, connection hole 100b3, and vent hole 100b2, the functionality is increased, and by staggering their arrangement, interference during use is prevented.

[0048] Continue to refer to Figure 1 The hole 100b is configured as a tubular structure. When the hole 100b is not in use, it can be covered by a cap. The cap and the tubular structure can be detachably connected by means of threads, sleeves, or other methods.

[0049] Furthermore, the cap on the infusion port 100b1 may be a heparin cap, and the end of the infusion catheter is provided with a needle that can be inserted into the heparin cap into the kit 100 for delivery of infusion fluid.

[0050] The kit 100 can be integrally injection molded using biocompatible polymers or medical-grade metal materials. Biocompatible polymers include polylactic acid and polyglycolic acid. Additionally, the kit 100 can be made of a transparent material to facilitate observation of its internal components.

[0051] The kit 100 can be adjusted according to different donor heart sizes.

[0052] like Figure 1 and Figure 2 As shown, when the lower end of the kit 100 is inserted into the aortic root, the fixing member 200 is wrapped around the periphery of the aortic root, and the fixing member 200 is opposite to the lower end of the kit 100, so that the lower end of the kit 100 can be fixed to the aortic root.

[0053] The fixation member 200 is a strip structure. The two ends of the fixation member 200 are connected to transform the strip structure into a ring structure to fix the periphery of the aortic root.

[0054] In this embodiment, the first end of the fastener 200 is provided with a ring buckle 210, and the second end of the fastener 200 is provided with a first fastener 220 and a second fastener 230. When the second end of the fastener 200 passes through the ring buckle 210, it is fastened by the first fastener 220 and the second fastener 230, so that the fastener 200 is a ring structure.

[0055] The fastener 200 can be made of materials such as rubber, polyester, or biomaterials.

[0056] like Figure 1 As shown, the kit 100 is connected to a suspension member 300, which can suspend the kit 100 so that the aortic root can be opened by the kit 100, which facilitates continuous perfusion of the centrifuged heart.

[0057] One end of the suspension member 300 is connected to the closing plate 110 of the kit 100, and the other end of the suspension member 300 is provided with a hook 310, which can be hooked onto a support rod or bracket.

[0058] The upper end of the kit 100 is provided with a connecting ring 130, the suspension member 300 is connected to the connecting ring 130, and the end of the suspension member 300 away from the connecting ring 130 is provided with a hook 310.

[0059] Preferably, there are two suspension components 300, which are located on both sides of the kit 100 to make the suspension more stable. The suspension components 300 can be made of metal wire, braided rope, etc.

[0060] The method of using centrifugal cardiac perfusion to maintain the three-dimensional structure of the aortic root is as follows:

[0061] The doctor gently places the lower end of the kit 100 inside the aortic root and surrounds the fixation member 200 around the aortic root to stably fix the lower end of the kit 100 to the aortic root.

[0062] Hang the suspension 300 connected to the kit 100 in a designated position so that the kit 100 is lifted, further exposing the aortic root that has been stretched open by the kit 100.

[0063] Start the perfusion device to allow the perfusion fluid to be injected into the aortic root through the perfusion port 100b1 on the kit 100. Connect the pressure monitoring instrument to the connection port 100b3 on the kit 100 to monitor the perfusion pressure. You can also open the vent port 100b2 on the kit 100 to vent the air.

[0064] In summary, after the lower end of the kit 100 is inserted into the aortic root, the aortic root is fully expanded and maintains its normal three-dimensional shape. At this time, perfusion is injected into the aortic root through the exposed perfusion port 100b1, achieving continuous perfusion centrifugation of the heart. During perfusion, because the aortic root is constantly expanded by the kit 100, collapse, twisting, or deformation of the aortic root is avoided, thus preventing any impact on the perfusion effect. The fixing member 200 surrounds the aortic root, securing the lower end of the kit 100 to the aortic root. The suspension member 300 can suspend the aortic root for easy perfusion.

[0065] This structure can also be used with different blood perfusion systems, such as extracorporeal membrane oxygenation (ECMO) devices or cardiac perfusion pumps, to ensure that the donor heart receives optimal protection under different environments. It can be widely used in heart transplantation, donor preservation, centrifugal perfusion surgery, and other fields, providing safer and more effective technical support for cardiovascular surgery.

[0066] The embodiments described above are only used to illustrate the technical ideas and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The scope of patent application of this utility model should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in this utility model still fall within the patent scope of this utility model.

Claims

1. A structure for maintaining the three-dimensional configuration of the aortic root during centrifugal cardiopulmonary perfusion, characterized in that, The application relates to a kit (100) for aortic root perfusion, comprising: a kit (100) provided with an opening (100a) at the lower end, a plurality of holes (100b) arranged on the kit (100) and communicating with the opening (100a), wherein the holes (100b) comprise perfusion holes (100b1) exposed outside when the kit (100) is inserted into the aortic root at the lower end; a fixing member (200) arranged around the aortic root and opposite to the lower end of the kit (100); a hanging member (300) connected with the kit (100).

2. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 1, wherein, The kit (100) comprises: a closing plate (110); a ring-shaped plate (120) provided with an opening (100a) at the lower end and connected with the closing plate (110) at the upper end.

3. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 2, wherein, The holes (100b) are arranged on the closing plate (110) and / or the ring-shaped plate (120).

4. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 2, wherein The perfusion holes (100b1) are arranged on the ring-shaped plate (120).

5. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 2, wherein The holes (100b) comprise exhaust holes (100b2) arranged on the closing plate (110).

6. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 2, wherein The holes (100b) comprise connecting holes (100b3) arranged on the ring-shaped plate (120) and used for connecting pressure monitoring instruments.

7. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 1, wherein The holes (100b) are arranged in a tubular structure.

8. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 7, wherein, Further comprising: a cover detachably connected with the tubular structure.

9. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 2, wherein, One end of the hanging member (300) is connected with the closing plate (110) of the kit (100), and the other end of the hanging member (300) is provided with a hook (310).

10. The structure for maintaining the aortic root stereo of the centrifugal cardiac perfusion according to claim 1, wherein, The number of the hanging members (300) is two.

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