A blood vessel opening system with hemostasis function

Abstract

The invention provides a blood vessel opening system with a hemostatic function, including a hole opener and a conveying device, the hole opener includes a shell, a cutting assembly and a guide column arranged on the lower side of the shell, the cutting assembly is arranged in the shell, the guide column is a hollow structure and is connected with the shell, the guide column is used to carry the conveying device, and the shell and the guide column form an inclined angle. The invention aims to propose a blood vessel opening system with a hemostatic function to solve the problem of bleeding after the hole opener is removed and before the finger is officially pressed, and after the finger is removed and before the umbrella-shaped hemostat is installed; after the blood vessel opening is completed, the umbrella-shaped hemostat does not need to be re-centered when it is placed in the blood vessel, the operation is faster, and the operation time is saved.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a blood vessel opening system with a hemostatic function. Background Art

[0002] In the existing proximal anastomosis system, after the opening of the blood vessel and before the umbrella-shaped hemostat is installed, the bleeding hole is blocked by the finger to stop bleeding. After the opening device is removed and before the finger is officially pressed, that is, the first stage, and after the finger is removed and before the umbrella-shaped hemostat is installed, that is, the second stage. A small amount of bleeding will occur in both the first and second stages. After the opening of the blood vessel is completed, if the umbrella-shaped hemostat is placed in the blood vessel, it needs to be re-centered. At this time, the doctor may need to repeat the re-centering several times because the blood flowing out affects the vision, which prolongs the operation time and increases the risk of the operation. Summary of the invention

[0003] In view of this, the invention aims to propose a blood vessel opening system with a hemostatic function to solve the problem of bleeding after the opening device is removed and before the finger is officially pressed, and after the finger is removed and before the umbrella-shaped hemostat is installed; after the blood vessel opening is completed, the umbrella-shaped hemostat does not need to be re-centered when it is placed in the blood vessel, which makes the operation faster and saves operation time.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A blood vessel opening system with a hemostatic function comprises a hole opener and a conveying device, wherein the hole opener comprises a shell, a cutting assembly and a guide column arranged on the lower side of the shell, the cutting assembly is arranged in the shell, the guide column is a hollow structure and passes through the shell, the guide column is used to carry the conveying device, and the shell and the guide column form an inclined angle.

[0006] Furthermore, a common channel is provided at the lower end of the shell, and the hole opener and the ends of the guide column intersect and pass through the common channel.

[0007] Furthermore, a hemostatic sheath is provided at the end of the common channel, and the hemostatic sheath includes a base, an end cover and a sealing gasket provided between the base and the end cover, the base is tightly attached to the bleeding outlet, a through cross seam is provided on the sealing gasket, and the sealing gasket is made of elastic material.

[0008] Furthermore, the angle between the housing and the guide column is 30° to 45°.

[0009] Furthermore, the conveying device includes a shell, a conveying tube, a pushing rod and a pushing button, and the conveying tube is installed in the guide column.

[0010] Furthermore, it also includes a vascular anastomosis element installed in the delivery tube, the vascular anastomosis element includes an umbrella-shaped hemostat, a tension spring, an anchor sheet and a pull wire, and the umbrella-shaped hemostat is located in the front area inside the guide column.

[0011] Furthermore, it also includes a loading device for loading the vascular anastomosis element into the delivery tube, and the loading device includes a pushing mechanism, a curling mechanism and a curling button.

[0012] Compared with the prior art, the blood vessel opening system with hemostasis function created by the present invention has the following advantages:

[0013] (1) The invention can complete the operation of opening a blood vessel and pushing the umbrella-shaped hemostat after one-time positioning; after the blood vessel opening is completed, the umbrella-shaped hemostat does not need to be re-centered when it is inserted into the blood vessel, which makes the operation faster and saves surgical time;

[0014] (2) The hemostatic sheath created by the present invention can prevent blood vessels from flowing back into the cutting system when the cutting knife returns to its original position after cutting. When the cutting knife is inserted forward, the sealing pad opens due to the elastic effect. When the cutting knife is withdrawn, the bottom surface of the sealing pad presses the cross seam tightly due to the blood pressure to close the cross seam to achieve hemostasis. It solves the problem of bleeding after the hole opener is removed and before the finger is officially pressed, and after the finger is removed and before the umbrella-shaped hemostat is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of the hemostatic sheath according to an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the sealing gasket structure according to an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of a conveying device according to an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the structure of a vascular anastomosis element according to an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure of the delivery tube and the vascular anastomosis element according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the loading device described in the embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1-delivery device; 2-guide column; 3-common channel; 4-hemostatic sheath; 5-housing; 6-cutting assembly; 7-pushing mechanism; 8-curling mechanism; 9-curling button; 101-anchor plate; 102-tension spring; 103-umbrella-shaped hemostat; 104-pull wire; 201-end cover; 202-sealing pad; 203-base; 301-delivery tube; 302-pushing rod; 303-housing. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] like Figures 1 to 6As shown, a blood vessel opening system with hemostasis function includes a hole opener and a conveying device. The hole opener includes a shell 5, a cutting assembly 6 and a guide column 2 arranged at the lower side of the shell. The cutting assembly 6 is arranged in the shell 5. The guide column 2 is a hollow structure and is connected with the shell 5. The guide column 2 is used to carry the conveying device 1. The shell 5 and the guide column 2 form an inclined angle. It also includes a blood vessel anastomosis element installed in the guide column 2. The blood vessel anastomosis element includes an umbrella-shaped hemostat 103, a tension spring 102, an anchor sheet 101 and a pull wire 104. The umbrella-shaped hemostat 103 is located in the front area of ​​the guide column 2. A common channel 3 is arranged at the lower end of the shell 5. The ends of the hole opener and the guide column 2 intersect and pass through the common channel 3.

[0030] The working principle of a blood vessel opening system with hemostasis function is as follows: first, a cutting assembly 6 in the opening system is used to open a blood vessel through a common channel 3, and the cutting knife is withdrawn through the common channel 3 after the blood vessel opening; then, a blood vessel anastomosis element is pushed into the common channel 3 from the tube head end of a guide column 2 by a conveying device 1, and an umbrella-shaped hemostat 103 enters the blood vessel through the common channel 3 to perform an anastomosis operation; since a tension spring 102 of the umbrella-shaped hemostat 103 is a metal part and has a certain amount of deformation, a certain range of angles between the pushing direction and the forward direction are allowed; thereby, the blood vessel opening and the operation of pushing the umbrella-shaped hemostat 103 can be completed by one-time positioning; after the blood vessel opening is completed, there is no need to re-center the umbrella-shaped hemostat when it is placed in the blood vessel, so the operation is faster and the operation time is saved.

[0031] The delivery device 1 includes a housing 303, a delivery tube 301, a push rod 302 and a push button 304. The delivery tube 301 is mounted in the guide column 2. The angle between the housing 5 and the guide column 2 is 30° to 45°. When the push rod is pushed, since the push rod and the housing 303 are in a locked state, the umbrella-shaped hemostat is pushed from the head end of the delivery tube 301 into the common channel 3, and then enters the hemostatic guide sleeve through the common channel 3 and then enters the blood vessel to achieve hemostasis.

[0032] A hemostatic sheath 4 is provided at the end of the common channel 3, and the hemostatic sheath includes a base 203, an end cover 201, and a sealing pad 202 provided between the base 203 and the end cover 201. The base 203 is close to the bleeding port, and a through cross seam 204 is provided on the sealing pad 202, and the sealing pad 202 is made of elastic material. The hemostatic sheath 4 can prevent the blood vessel from flowing back into the cutting system when the cutting knife returns to the original position after cutting. When the cutting knife is inserted forward, the sealing pad opens due to elasticity. When the cutting knife is withdrawn, the bottom surface of the sealing pad presses the cross seam tightly and closes due to blood pressure to achieve hemostasis. The problem of bleeding after the hole opener is removed and before the finger is formally pressed, and before the umbrella-shaped hemostat is installed, is solved. Similarly, when the blood vessel anastomosis element is pushed into the common channel 3 from the tube head end of the guide column 2 by the conveying device 1, the umbrella-shaped hemostat 103 enters the hemostatic guide sleeve through the common channel 3 and then enters the blood vessel, which can further achieve the hemostatic effect.

[0033] like Figure 7 , 6 As shown, it also includes a loading device for fitting the vascular anastomosis element 10 into the guide column 2, and the loading device includes a pushing mechanism 7, a curling mechanism 8 and a curling button 9. Before the operation, the loading device is used to load the umbrella-shaped hemostat into the conveying device 1, and the conveying tube 301 of the conveying device 1 is fitted into the guide column 2.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A blood vessel opening system with hemostasis function, comprising a hole opener and a delivery device, characterized in that: The hole opener comprises a shell (5), a cutting assembly (6) and a guide column (2) arranged on the lower side of the shell, the cutting assembly (6) being arranged in the shell (5), the guide column (2) being a hollow structure and being connected to the shell (5), the guide column (2) being used to carry the conveying device (1), and the shell (5) and the guide column (2) being inclined at an angle; A common channel (3) is provided at the lower end of the shell (5), and the ends of the hole opener and the guide column (2) intersect and penetrate the common channel (3); A hemostatic sheath (4) is provided at the end of the common channel (3), the hemostatic sheath comprising a base (203), an end cover (201), and a sealing pad (202) provided between the base (203) and the end cover (201), the base (203) being closely attached to the bleeding opening, a through cross seam (204) being provided on the sealing pad (202), and the sealing pad (202) being made of elastic material; The conveying device (1) comprises a housing (303), a conveying tube (301), a pushing rod (302) and a pushing button (304); the conveying tube (301) is installed in a guide column (2); It also includes a vascular anastomosis element installed in the delivery tube (301), the vascular anastomosis element including an umbrella-shaped hemostat (103), a tension spring (102), an anchor sheet (101) and a pull wire (104), the umbrella-shaped hemostat (103) being located in the front area inside the guide column (2); It also includes a loading device for loading the vascular anastomosis element (10) into the delivery tube (301), the loading device comprising a pushing mechanism (7), a curling mechanism (8) and a curling button (9).

2. The blood vessel opening system with hemostasis function according to claim 1, characterized in that: The included angle between the housing (5) and the guide column (2) is 30° to 45°.

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