KR-102963136-B1 - Hybrid Shunt System for Carotid Endarterectomy

KR102963136B1KR 102963136 B1KR102963136 B1KR 102963136B1KR-102963136-B1

Abstract

The hybrid shunt system for carotid endarterectomy of the present disclosure comprises an internal carotid artery inserter having an internal carotid artery occlusion balloon at one end of a multilumen tube and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and an operating fluid inlet/outlet port at the other end of a multilumen tube, a common carotid artery inserter having a common carotid artery occlusion balloon at one end of a multilumen tube and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and an operating fluid inlet/outlet port at the other end of a multilumen tube, and a connector connecting the blood flow opening/closing port of the common carotid artery inserter and the blood flow opening/closing port of the internal carotid artery inserter to divert blood flow during the CEA procedure, thereby allowing for a smaller incision site, a more convenient procedure, a shorter procedure time, and rapid and safe insertion into an accurate location within the blood vessel even if the blood vessel is obscured by the cervical vertebrae and not visible.

Inventors

최재호
조우철

Assignees

가톨릭대학교 산학협력단

Dates

Publication Date: 20260512
Application Date: 20231108

Claims (6)

An internal carotid artery insertion device having an internal carotid artery occlusion balloon that contracts/expands upon the entry/exit of a working fluid provided at one end of a tube, and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and a working fluid entry/exit port provided at the other end of the tube; A common carotid artery insertion device having a common carotid artery occlusion balloon that contracts/inflates upon the entry/exit of a working fluid provided at one end of a tube, and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and a working fluid entry/exit port provided at the other end of the tube; and A connector that connects the blood flow opening/closing port of the common carotid artery inserter and the blood flow opening/closing port of the internal carotid artery inserter to bypass blood flow during a CEA procedure; Includes, The above internal carotid artery insertion device and the above common carotid artery insertion device are each disassembled and assembled with respect to the connector, and A hybrid shunt system for carotid endarterectomy in which the opening and closing operation of the blood flow opening/closing cock installed in the hub of the internal carotid artery insertion device and the blood flow opening/closing cock installed in the hub of the common carotid artery insertion device are performed independently.
In claim 1, The above connector is a hybrid shunt system for carotid endarterectomy, which is a three-way cock.
In claim 2, The above tube is a hybrid shunt system for carotid endarterectomy, which is a multi-lumen tube comprising a first flow path through which blood can flow and a second flow path through which a working fluid can flow.
In claim 3, The above tube is a hybrid shunt system for carotid endarterectomy in which the first flow path passes through the interior of the second flow path.
In claim 3, A hybrid shunt system for carotid endarterectomy in which one end of the first path passes through an occlusion balloon and one end of the second path communicates with the occlusion balloon.
An internal carotid artery insertion device having an internal carotid artery occlusion balloon that contracts/expands upon the entry/exit of a working fluid provided at one end of a tube, and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and a working fluid entry/exit port provided at the other end of the tube; A common carotid artery insertion device having a common carotid artery occlusion balloon that contracts/inflates upon the entry/exit of a working fluid provided at one end of a tube, and a hub having a blood flow opening/closing port with a blood flow opening/closing cock and a working fluid entry/exit port provided at the other end of the tube; and A connector that connects the blood flow opening/closing port of the common carotid artery inserter and the blood flow opening/closing port of the internal carotid artery inserter to bypass blood flow during a CEA procedure; Includes, Only one of the above internal carotid artery insertion device or the above common carotid artery insertion device is disassembled and assembled with respect to the connector, and the other is formed integrally with the connector, and A hybrid shunt system for carotid endarterectomy in which the opening and closing operation of the blood flow opening/closing cock installed in the hub of the internal carotid artery insertion device and the blood flow opening/closing cock installed in the hub of the common carotid artery insertion device are performed independently.

Description

Hybrid Shunt System for Carotid Endarterectomy The present invention relates to a hybrid shunt system for carotid endarterectomy (hereinafter abbreviated as "hybrid shunt system") which, compared to using a conventional integrated carotid shunt, has a smaller incision site, is very easy to perform, has a shorter procedure time, and allows for the rapid and safe insertion of an occlusion balloon into an accurate location within the blood vessel via a guide wire, even if the blood vessel is obscured by the cervical vertebrae and not visible. The carotid artery can be divided into the internal carotid artery (ICA), which extends into the skull; the external carotid artery (ECA), which extends outward from the skull; and the common carotid artery (CCA), where the internal and external carotid arteries merge. Carotid artery stenosis usually occurs when cholesterol is deposited in the blood vessels at or near the bifurcation of the external and internal carotid arteries. Surgical treatments such as carotid artery stenting (CAS) or carotid endarterectomy (CEA), or drug treatments using antiplatelet agents and anticoagulants, are known. The differences between carotid endarterectomy (CEA) and carotid stent implantation (CAS) can be summarized as shown in Table 1. The carotid endarterectomy related to the present invention can be performed using a carotid shunt or by using a clamp and catheter. Among these, the procedure using the Pruitt F3® carotid shunt (LeMaitre) involves inserting an integrated carotid shunt into the incised blood vessel, which causes significant bleeding. In particular, in the case of a high bifurcation, the carotid shunt must be inserted into the blood vessel in a state where it is not easily visible, which increases the risk of the vessel being punctured. Furthermore, due to low domestic usage, it is not being imported. FIG. 1 is a drawing showing a first embodiment of the present invention. FIG. 2 is a drawing showing a second embodiment of the present invention. FIGS. 3a to 3j are drawings showing the procedure of a hybrid shunt system according to the present invention in chronological order. Hereinafter, embodiments according to the present disclosure are described in detail based on the attached drawings, but detailed descriptions of known configurations and functions that are deemed to obscure the essence of the invention will be omitted. In the attached drawings, the same reference numerals are assigned to identical components, even if they are shown in different drawings. Additionally, in this specification, even if a component is expressed in the singular, cases where it is plural are not excluded. Expressions such as "includes," "has," and "consists of" may include cases where other parts are added, unless "only" is used in the preceding part. For convenience, terms such as “first, second, A, B, (a), (b” may be used, but these terms are only for distinguishing one component from another and should not limit the nature, order, sequence, or number of the components. Terms such as "connection, combination, connection," which indicate the combined relationship between component(s), may include not only cases where the component(s) are directly "connected, combined, or connected," but also cases where other components other than the component(s) are interposed to be "connected, combined, or connected." When a temporal sequence is described using expressions such as "after, following, next, before," etc., it may include cases that are not continuous unless terms such as "immediately" or "directly" are used. Furthermore, where numerical values of components or corresponding information (e.g., levels, etc.) are mentioned, even without explicit description, such numerical values or corresponding information may be interpreted as including error ranges caused by various factors (e.g., process factors, internal/external shocks, noise, etc.). ≪Example≫ FIG. 1 is a schematic diagram illustrating a first embodiment of the present disclosure, which may be configured to include an internal carotid artery inserter (100), a common carotid artery inserter (200), and a connector (300A). The internal carotid artery insertion device (100) may include a tube (110), an internal carotid artery occlusion balloon (120) provided at one end of the tube (110), and a hub (130) provided at the other end of the tube (110). The tube (110) may be a concentric structure, for example, in which the second channel (112) surrounds the first channel (111). Additionally, the first channel (111) is longer than the second channel (112). During the CEA procedure, blood is diverted through the first channel (111), and a working fluid, such as saline, is introduced into or filled through the second channel (112). The internal carotid artery occlusion balloon (120) can be made of a material such as polyurethane, silicone, or latex so that, for example, it is in the shape of a balloon with a diameter of 5.0 mm and a length of 10 m