Brain protection device for low-temperature perfusion operation under extracorporeal circulation

Abstract

The utility model relates to the technical field of cooling ice caps, in particular to a brain protection device for low-temperature perfusion operation under extracorporeal circulation, which comprises a cap body, a cooling bin fixedly assembled in an inner cavity of the cap body, a sealing plate mounted on the outer wall of the cooling bin, a limiting rod fixedly assembled on the outer wall of the cap body, and a limiting plate fixedly assembled on the outer edge of the limiting rod. A cooling ring is installed on the outer side of the cap body, and a fixing belt is fixedly assembled on the outer wall of the cooling ring. According to the brain protection device for the low-temperature perfusion operation under the extracorporeal circulation, the cooling bin and the protection cover are arranged in the inner cavity of the cap body, when the device is used, the head of a patient is placed in the inner cavity of the cap body, the head of the patient can be cooled under the action of the cooling bin, auricles of the patient are wrapped under the action of the protection cover, and therefore the head of the patient is protected; the ice cap plays a role in protecting auricles, and the auricles of a patient are prevented from being damaged when the ice cap is used.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling ice caps, in particular to a brain protection device for low-temperature perfusion surgery under extracorporeal circulation. Background Art

[0002] Total aortic arch replacement and half aortic arch replacement under extracorporeal circulation require blocking the innominate artery, left common carotid artery, and left subclavian artery. Therefore, hypothermic brain protection is required to lower brain temperature, reduce brain cell metabolic rate, further reduce oxygen consumption, and alleviate cerebral edema. Therefore, an ice cap is needed to cool the patient's head.

[0003] When using a traditional ice cap, after adding ice cubes to the inner wall of the ice cap, it is necessary to wrap the patient's auricle with cotton gauze to avoid damaging the patient's auricle. This method is more cumbersome, and the traditional ice cap only has the function of cooling the patient's head. However, in total aortic arch replacement surgery, not only the head needs to be cooled, but also the large blood vessels in the neck. The traditional ice cap cannot cool the patient's neck. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a brain protection device for hypothermic perfusion surgery under extracorporeal circulation, which has the advantages of good cooling effect and easy use, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a brain protection device for hypothermic perfusion surgery under extracorporeal circulation, comprising a cap body, an inner cavity of the cap body fixedly equipped with a cooling chamber, an outer wall of the cooling chamber installed with a closing plate, an outer wall of the cap body fixedly equipped with a limiting rod, an outer edge of the limiting rod fixedly equipped with a limiting plate, an outer side of the cap body installed with a cooling ring, an outer wall of the cooling ring fixedly equipped with a fixing belt, an outer wall of the fixing belt is provided with a limiting hole, and a closing door is installed on the top of the cooling ring.

[0006] Preferably, a protective cover is fixedly mounted on the inner wall of the cap body, and the inner wall of the protective cover is covered with a thermal insulation layer.

[0007] Preferably, the inner walls of the cap body and the cooling ring are respectively covered with a waterproof layer and a thermal insulation layer, and the waterproof layer is below the thermal insulation layer.

[0008] Preferably, there are two protective covers, and the two protective covers are respectively installed on the inner walls of both sides of the cap body.

[0009] Preferably, the outer wall diameter of the limiting rod matches the inner wall diameter of the limiting hole, and the outer wall diameter of the limiting plate is larger than the inner wall diameter of the limiting hole.

[0010] Preferably, the fixing belt is made of medical silicone, and the cap body and the cooling ring are both made of TPU.

[0011] Preferably, the cap body and the cooling ring can be separated into two equal volume parts, and the two parts can be connected by a sliding damping rod, and the distance between the two parts of the cap body and the cooling ring can be adjusted.

[0012] Preferably, the cap body has an opening on the side that matches the shape of the cooling chamber, the cooling chamber is embedded and fixed to the opening, a handle is fixed on the side of the cooling chamber, and drainage ports are provided on the bottom sides of the two parts of the cooling ring.

[0013] Preferably, the side edge of the cap body is provided with a slide groove which matches the cooling bin and the protective cover respectively, and the cooling bin and the protective cover can be arranged with horizontal damping sliding with the side edge of the cap body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation has a cooling chamber and a protective cover arranged in the inner cavity of the cap body. When using the device, the patient's head is placed in the inner cavity of the cap body, and the patient's head can be cooled by the cooling chamber. The patient's auricle can be wrapped by the protective cover to protect the auricle, thereby avoiding damage to the patient's auricle when using the ice cap.

[0016] 2. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation has a cooling ring arranged on the outside of the cap body and a fixing belt arranged on the outer wall of the cooling ring. By adjusting the position of the fixing belt, the cooling ring fits on the patient's neck, cools the carotid artery in the patient's neck, and thus better maintains the patient's head temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the first axonometric drawing of the utility model;

[0018] Figure 2 It is the second axonometric drawing of the utility model;

[0019] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0020] Figure 4 A schematic diagram of the structure of adjusting the distance between the cap body and the cooling ring of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the slideway of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the opening and the liquid discharge port of the utility model.

[0023] In the figure: 1. cap body; 2. cooling chamber; 3. closing plate; 4. protective cover; 5. limiting rod; 6. limiting plate; 7. cooling ring; 8. fixing belt; 9. closing door; 10. limiting hole; 11. sliding rod; 12. opening; 13. handle; 14. drain port; 15. slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-4 A brain protection device for hypothermic perfusion surgery under extracorporeal circulation includes a cap body 1, an inner cavity of the cap body 1 is fixedly equipped with a cooling chamber 2, an outer wall of the cooling chamber 2 is installed with a closing plate 3, an outer wall of the cap body 1 is fixedly equipped with a limiting rod 5, an outer edge of the limiting rod 5 is fixedly equipped with a limiting plate 6, a cooling ring 7 is installed on the outer side of the cap body 1, a fixing belt 8 is fixedly equipped on the outer wall of the cooling ring 7, a limiting hole 10 is provided on the outer wall of the fixing belt 8, and a closing door 9 is installed on the top of the cooling ring 7.

[0027] By installing a cooling ring 7 on the outside of the cap body 1 and filling the inner cavity of the cooling ring 7 with ice cubes, the cooling ring 7 can be directly placed on the patient's neck when in use. The ice cubes in the inner cavity of the cooling ring 7 can cool the large arteries at the patient's neck, thereby better controlling the temperature of the patient's head and neck.

[0028] The inner wall of the cap body 1 is fixedly mounted with a protective cover 4, and the inner wall of the protective cover 4 is covered with a heat preservation layer.

[0029] By covering the inner wall of the protective cover 4 with a thermal insulation layer, the thermal insulation layer on the inner wall of the protective cover 4 can contact the outer wall of the patient's auricle when the device is used, thereby keeping the patient's auricle warm and preventing the patient's auricle from being frostbitten. Therefore, there is no need to wrap the auricle additionally when using the device.

[0030] The inner walls of the cap body 1 and the cooling ring 7 are respectively covered with a waterproof layer and a thermal insulation layer, and the waterproof layer is below the thermal insulation layer.

[0031] By providing a waterproof layer and a thermal insulation layer on the inner wall of the cap body 1 and the inner wall of the cooling ring 7, when using the device, the patient's neck skin will directly contact the thermal insulation layer, but will not directly contact the cooling ring 7 and the inner wall of the cap body 1, thereby avoiding the risk of frostbite and preventing condensed water from wetting the thermal insulation layer under the action of the waterproof layer.

[0032] There are two protective covers 4 , and the two protective covers 4 are respectively installed on the inner walls of both sides of the cap body 1 .

[0033] By arranging the protective cover 4 on the inner walls on both sides of the cap body 1, the position of the protective cover 4 corresponds to the position of the auricle of the patient's head. When the ice cubes are filled into the inner cavity of the cooling chamber 2, the auricle of the patient can be wrapped under the action of the protective cover 4, thereby preventing the ice cubes in the inner cavity of the cooling chamber 2 from causing damage to the auricle of the patient.

[0034] The outer wall diameter of the limiting rod 5 matches the inner wall diameter of the limiting hole 10 , and the outer wall diameter of the limiting plate 6 is larger than the inner wall diameter of the limiting hole 10 .

[0035] By setting the limiting rod 5 and the limiting plate 6 on the outer wall of the cap body 1, when the position of the fixing belt 8 needs to be adjusted, an external force is applied to the fixing belt 8 to cause the fixing belt 8 to deform, and then the limiting rod 5 and the limiting plate 6 are passed through the inner cavity of the limiting hole 10, so that the cooling ring 7 and the cap body 1 can be well fixed.

[0036] The fixing belt 8 is made of medical silicone, and the cap body 1 and the cooling ring 7 are both made of TPU.

[0037] By using the fixing belt 8 made of medical silicone, when the limiting rod 5 and the limiting plate 6 are needed to fix the fixing belt 8, it is only necessary to apply external force to the fixing belt 8 to deform the limiting hole 10. At this time, the limiting plate 6 can be passed through the inner cavity of the limiting hole 10. The cap body 1 and the cooling ring 7 made of TPU can have a good shape, so that the cap body 1 and the cooling ring 7 can better contact with the patient's skin when in use.

[0038] The cap body 1 and the cooling ring 7 can be separated into two equal volume parts, and the two parts can be connected by a damping sliding connection through a slide bar 11. The two parts of the cap body 1 and the cooling ring 7 can be adjusted in distance, that is, the cap body 1 and the cooling ring 7 can be separated and moved left and right to achieve distance adjustment, so as to meet the needs of various head volumes and meet the needs of various patients. The slide bar 11 is preset in the cap body 1 or the cooling ring 7, and the other cap body 1 or the cooling ring 7 is provided with a damping jack matching the slide bar 11.

[0039] Working principle: During the use of the above-mentioned device, when the device is needed to cool the patient's head and neck, first place the patient's head in the inner cavity of the cap body 1, and at the same time align the inner cavity of the protective cover 4 with the patient's auricle, and then adjust the position of the fixing belt 8 according to the position of the patient's neck, apply external force to the fixing belt 8, so that the limiting hole 10 is deformed, and then the limiting plate 6 can be passed through the inner cavity of the limiting hole 10, so that the inner wall of the cooling ring 7 contacts the patient's neck, and then the closing plate 3 and the closing door 9 are removed from the top of the cooling chamber 2 and the cooling ring 7 respectively, and then ice cubes are added to the inner cavity of the cooling chamber 2 and the cooling ring 7 respectively. At this time, physical cooling of the patient's head blood vessels and neck blood vessels can be started.

[0040] Embodiment 2

[0041] Reference Figure 5 The difference between this embodiment and the first embodiment is that:

[0042] The cap body 1 has an opening 12 on the side thereof that matches the shape of the cooling chamber 2. The cooling chamber 2 is embedded and fixed with the opening 12. A handle 13 is fixed on the side of the cooling chamber 2. The bottom sides of the two parts of the cooling ring 7 are both provided with drainage ports 14. The drainage ports 14 are sealed with sealing plugs.

[0043] Working principle:

[0044] During the cooling process of the patient's head and neck, if the ice cubes are used up and need to be refilled, there is no need to remove the cap body 1 and the cooling ring 7. The liquid in the cooling ring 7 can be discharged through the drain port 14, that is, the drain port 14 is connected to the hose for drainage, and then ice cubes can be directly added to the cooling ring 7. The cooling chamber 2 can be directly taken out from the opening 12 and re-ice can be added. During the whole process, the cap body 1 and the cooling ring 7 do not need to be removed from the patient's head, which effectively improves the work efficiency.

[0045] Embodiment 3

[0046] Reference Figure 6 The difference between this embodiment and the first embodiment is that:

[0047] The side of the cap body 1 is provided with a slide groove 15 that matches the cooling bin 2 and the protective cover 4, that is, two slide grooves 15 are provided, respectively corresponding to the cooling bin 2 and the protective cover 4. The cooling bin 2 and the protective cover 4 can be arranged with horizontal damping sliding on the side of the cap body 1, that is, the cooling bin 2 and the protective cover 4 are provided with a slider on the side corresponding to the side of the cap body 1, and the slider is matched with the slide groove 15 for sliding.

[0048] When the cap body 1 and the cooling ring 7 are set on the patient's head, the cooling chamber 2 and the protective cover 4 can be slidably moved and adjusted according to the position of the patient's head and ears, so that the cooling chamber 2 and the protective cover 4 can accurately correspond to the patient's head and ears.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brain protection device for hypothermic perfusion surgery under extracorporeal circulation, comprising a cap body (1), characterized in that: The inner cavity of the cap body (1) is fixedly equipped with a cooling chamber (2), the outer wall of the cooling chamber (2) is installed with a closing plate (3), the outer wall of the cap body (1) is fixedly equipped with a limiting rod (5), the outer edge of the limiting rod (5) is fixedly equipped with a limiting plate (6), the outer side of the cap body (1) is installed with a cooling ring (7), the outer wall of the cooling ring (7) is fixedly equipped with a fixing belt (8), the outer wall of the fixing belt (8) is provided with a limiting hole (10), and the top of the cooling ring (7) is installed with a closing door (9).

2. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The inner wall of the cap body (1) is fixedly mounted with a protective cover (4), and the inner wall of the protective cover (4) is covered with a heat preservation layer.

3. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The inner walls of the cap body (1) and the cooling ring (7) are respectively covered with a waterproof layer and a thermal insulation layer, and the waterproof layer is below the thermal insulation layer.

4. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 2, characterized in that: There are two protective covers (4), and the two protective covers (4) are respectively installed on the inner walls on both sides of the cap body (1).

5. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The outer wall diameter of the limiting rod (5) matches the inner wall diameter of the limiting hole (10), and the outer wall diameter of the limiting plate (6) is larger than the inner wall diameter of the limiting hole (10).

6. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The fixing belt (8) is made of medical silica gel, and the cap body (1) and the cooling ring (7) are both made of TPU.

7. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The cap body (1) and the cooling ring (7) can be separated into two equal volume parts, and the two parts can be connected by damping sliding through a sliding rod (11), and the distance between the two parts of the cap body (1) and the cooling ring (7) can be adjusted.

8. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 7, characterized in that: The cap body (1) is provided with an opening (12) on the side thereof which matches the shape of the cooling chamber (2); the cooling chamber (2) and the opening (12) are embedded and fixed; a handle (13) is fixed on the side of the cooling chamber (2); and drainage ports (14) are provided on the bottom sides of the two parts of the cooling ring (7).

9. The brain protection device for hypothermic perfusion surgery under extracorporeal circulation according to claim 1, characterized in that: The side of the cap body (1) is provided with a slide groove (15) respectively matching the cooling chamber (2) and the protective cover (4); the cooling chamber (2) and the protective cover (4) can both be arranged to slide horizontally with damping on the side of the cap body (1).

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