Intercostal artery occluder

Abstract

The utility model discloses an intercostal artery occluder, comprising: a occluding head, the occluding head is suitable for occluding the open end of the intercostal artery; a pulling part, the pulling part is connected to the proximal end of the occluding head, and the pulling part is suitable for pulling the occluding head out from the open end of the intercostal artery after surgery. During the replacement of the thoracic and abdominal aorta, the occluding head can be used to occlude the open end of the intercostal artery. Since the intercostal artery is blocked, the collateral circulation of the intercostal blood vessels supplying the spinal cord will also be strengthened, which will greatly reduce the complications of the spinal cord during the thoracic and abdominal aorta surgery and greatly reduce bleeding. In addition, the utility model has a simple structure, low production cost, and is very convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an intercostal artery occluder. Background Art

[0002] Thoracoabdominal aorta replacement surgery is difficult and time-consuming, and sometimes causes serious complications such as massive intraoperative blood loss and postoperative paraplegia. The main reason is that during the replacement of the thoracic and abdominal aorta, the intercostal arteries are in an open state, causing massive bleeding. At the same time, since the intercostal arteries cannot receive effective blood supply, complications such as spinal cord ischemia often occur. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that thoracic and abdominal aorta replacement surgery may cause severe complications such as massive blood loss during surgery and postoperative paraplegia in patients, thereby providing an intercostal artery occluder.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] Intercostal artery occluders, including:

[0006] A plugging head, wherein the plugging head is suitable for plugging the open end of the intercostal artery;

[0007] A pulling portion is connected to the proximal end of the occluding head, and is suitable for pulling the occluding head out from the open end of the intercostal artery after surgery.

[0008] To further optimize the technical solution, the plugging head is cylindrical.

[0009] To further optimize the technical solution, the plugging head is "tadpole-shaped".

[0010] To further optimize the technical solution, at least one pulling portion is provided.

[0011] To further optimize the technical solution, the pulling portion is configured to be columnar or linear.

[0012] To further optimize the technical solution, the blocking head is interference fit with the open end of the intercostal artery.

[0013] To further optimize the technical solution, the plugging head has multiple models.

[0014] To further optimize the technical solution, the outer diameter of the plugging head is greater than the outer diameter of the pulling part.

[0015] The technical solution of the utility model has the following advantages:

[0016] 1. The intercostal artery occluder provided by the utility model can use the occluding head to occlude the open end of the intercostal artery during the replacement of the thoracic and abdominal aorta. Since the intercostal artery is blocked, the collateral circulation of the intercostal blood vessels supplying the spinal cord will also be strengthened, which will greatly reduce the complications of the spinal cord during the thoracic and abdominal aorta surgery and significantly reduce bleeding. In addition, the utility model has a simple structure, low production cost, and is very convenient to operate.

[0017] 2. The intercostal artery occluder provided by the utility model has an interference fit between the occluding head and the open end of the intercostal artery, so that the occluding head has a good sealing effect and effectively reduces the possibility of intercostal artery bleeding.

[0018] 3. The intercostal artery occluder provided by the utility model has a plurality of models of occluding heads. The occluder is designed in different models according to the diameter of the intercostal artery, so that the bleeding intercostal artery can be effectively occluded and the collateral circulation can be strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the connection between the intercostal arteries and the thoracic aorta;

[0021] Figure 2 A simplified structural diagram of the intercostal artery occluder provided by the utility model when occluding the intercostal artery;

[0022] Figure 3 A schematic diagram of the structure of the intercostal artery occluder provided by the utility model;

[0023] Figure 4 Another schematic diagram of the structure of the intercostal artery occluder provided by the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the intercostal artery occluder provided by the utility model when occluding the intercostal artery;

[0025] Figure 6 This is a schematic structural diagram of the intercostal artery occluder provided by the utility model when being pulled out from the opening end of the intercostal artery.

[0026] Figure numerals: 1. intercostal artery occluder, 11. occluding head, 12. pulling part, 2. intercostal artery. DETAILED DESCRIPTION

[0027] The following will describe in more detail exemplary embodiments of the present invention with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. It should be noted that the present invention illustrates that the intercostal artery occluder of the present invention by means of a blocking head blocking the open end of the intercostal artery is only a preferred embodiment, and does not limit the protection scope of the intercostal artery occluder.

[0028] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "an" as used herein may also be meant to include the plural forms. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0029] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. In addition, in the description of the utility model, unless otherwise clearly specified and limited, the terms "set" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0030] For ease of description, spatial relative terms can be used in the text to describe the relationship of an element or feature relative to another element or feature as shown in the figure, and these relative terms are, for example, "front", "rear", "middle", "inside", "longitudinal", "lateral", "side", "vertical", "outside", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the figure. For example, if the mechanism in the figure flips, the element described as "below other elements or features" or "below other elements or features" will be subsequently oriented to "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include the orientation on and below. The mechanism can be oriented in addition (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0031] It should be noted that the “distal end” is usually the end of the medical implant away from the operator; the “proximal end” is the opposite of the “distal end” and refers to the end of the medical implant close to the operator.

[0032] With the continuous development of thoracic and cardiovascular surgery in my country, the top experts in thoracic and cardiovascular surgery in China have gradually challenged the difficult operations in thoracic and cardiovascular surgery, such as thoracic and abdominal aortic replacement, and achieved good results. Thoracoabdominal aortic replacement is a relatively complex operation used to treat aortic disease. The operation is difficult. In this operation, the doctor will replace or repair the damaged or dilated part of the aorta. This operation can be used to treat aortic aneurysms, aortic dissections and other aortic diseases. During the operation, the doctor will cut open the patient's chest and abdomen, temporarily block the blood flow of the aorta, and replace the aorta with an artificial blood vessel.

[0033] Thoracoabdominal aorta replacement surgery is difficult and time-consuming, and sometimes causes serious complications such as massive intraoperative blood loss and postoperative paraplegia. The main reason is that during the replacement of the thoracic and abdominal aorta, if Figure 1 As shown, when the thoracic aorta and intercostal arteries are cut open, there will be a lot of bleeding because the intercostal arteries are in an open state. At the same time, since the intercostal arteries cannot receive effective blood supply, complications such as spinal cord ischemia often occur.

[0034] To this end, the utility model designs an intercostal artery occluder to block bleeding from the intercostal arteries during the period when the intercostal arteries are open. Since the intercostal arteries are blocked, the collateral circulation of the intercostal blood vessels supplying the spinal cord will also be strengthened, which will greatly reduce spinal cord complications during thoracic and abdominal aorta surgery and significantly reduce bleeding.

[0035] The specific embodiments of the present invention are described in detail below in conjunction with the intercostal artery occluder of the present invention.

[0036] like Figures 2 to 6 As shown, this embodiment discloses an intercostal artery occluder, comprising a occluding head 11 and a pulling portion 12. The occluding head 11 is suitable for occluding the open end of the intercostal artery. The pulling portion 12 is connected to the proximal end of the occluding head 11, and the pulling portion 12 is suitable for pulling the occluding head 11 out of the open end of the intercostal artery after surgery.

[0037] The above intercostal artery occluder can use the occluding head 11 to occlude the open end of the intercostal artery during the replacement of the thoracic and abdominal aorta. Since the intercostal artery is blocked, the collateral circulation of the intercostal blood vessels supplying the spinal cord will also be strengthened, which will greatly reduce spinal cord complications during thoracic and abdominal aorta surgery and significantly reduce bleeding. In addition, this embodiment has a simple structure, low production cost, and is very convenient to operate.

[0038] In some embodiments, Figure 3 As shown, the plugging head 11 is cylindrical. In this embodiment, when the cylindrical plugging head 11 plugs the intercostal artery, the contact area between the cylindrical plugging head 11 and the inner wall of the intercostal artery is larger, and the two fit more closely.

[0039] As an alternative embodiment, Figure 4 As shown, the plugging head 11 is "tadpole-shaped".

[0040] In some embodiments, at least one pulling part 12 is provided. That is, one or more pulling parts 12 are provided at the proximal end of the plugging head 11. Regardless of the number of pulling parts 12, when the plugging head 11 is not in use, the operator pulls toward the proximal end of the pulling part 12 to pull out the plugging head 11 plugging the open end of the intercostal artery, so as to facilitate the next step of operation.

[0041] In some embodiments, the pulling portion 12 is configured to be columnar or linear. In this embodiment, only two implementation forms of the pulling portion 12 are provided, and the shape of the pulling portion 12 is not limited to these two shapes.

[0042] In some embodiments, the plugging head 11 is interference fit with the open end of the intercostal artery, so that the plugging head 11 has a good sealing effect and effectively reduces the possibility of bleeding in the intercostal artery.

[0043] In some embodiments, the occluding head 11 has multiple models. The occluding device is designed in different models according to the diameter of the intercostal artery, ranging from F12 to F16, so that the bleeding intercostal artery can be effectively blocked and the collateral circulation can be strengthened. With the continuous development of this surgical technique, the occluding device in this embodiment will be designed with more models and continuously developed and improved.

[0044] In some embodiments, the outer diameter of the plugging head 11 is greater than the outer diameter of the pulling portion 12 , that is, the cross-sectional area of ​​the plugging head 11 is larger than that of the pulling portion 12 .

[0045] The specific use process of the utility model is:

[0046] During the replacement of the thoracic and abdominal aorta, since the intercostal arteries are in an open state, the occluding head 11 of the intercostal artery occluder 1 can be used to occlude each intercostal artery 2 in turn, thereby reducing the bleeding of the intercostal artery. After the operation is completed, the pulling part 12 can be pulled to pull the occluding head 11 out of the intercostal artery 2.

[0047] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled 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 methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An intercostal artery occluder, characterized in that: Applied in thoracic and abdominal aorta replacement surgery, the open end of the intercostal artery is blocked after the incision between the thoracic aorta and the intercostal artery. The intercostal artery occluder comprises: A blocking head (11), wherein the blocking head (11) is suitable for blocking the open end of the intercostal artery; A pulling portion (12), wherein the pulling portion (12) is connected to the proximal end of the plugging head (11), and the pulling portion (12) is suitable for pulling the plugging head (11) out from the open end of the intercostal artery after surgery.

2. The intercostal artery occluder according to claim 1, characterized in that: The plugging head (11) is cylindrical.

3. The intercostal artery occluder according to claim 1, characterized in that: The plugging head (11) is "tadpole-shaped".

4. The intercostal artery occluder according to claim 1, characterized in that: The pulling portion (12) is provided with at least one.

5. The intercostal artery occluder according to claim 1, characterized in that: The pulling portion (12) is configured to be columnar or linear.

6. The intercostal artery occluder according to any one of claims 1 to 5, characterized in that: The blocking head (11) is interference fit with the open end of the intercostal artery.

7. The intercostal artery occluder according to any one of claims 1 to 5, characterized in that: The plugging head (11) has multiple models.

8. The intercostal artery occluder according to any one of claims 1 to 5, characterized in that: The outer diameter of the plugging head (11) is greater than the outer diameter of the pulling portion (12).

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