Anastomat

Abstract

The invention relates to the technical field of medical instruments, and provides an anastomat which comprises a hollow anastomosis tube, and the anastomosis tube comprises a first anastomosis part and a second anastomosis part which are distributed at the two ends; the ports of the first anastomosis part and the second anastomosis part are inclined ports, the outer diameter of the first anastomosis part is gradually reduced from the port to the middle part, and the outer diameter of the second anastomosis part is gradually reduced from the port to the middle part. The first anastomosis part and the second anastomosis part are arranged in an inclined opening and reducing mode, so that the anastomat can conveniently penetrate into blood vessels or lymphatic vessels, the interiors of the blood vessels or the lymphatic vessels can be tightly clamped to the outer walls of the first anastomosis part and the second anastomosis part in a contracted mode, disengaging is not prone to occurring, and therefore the anastomosis effect is good. By using the anastomat, pipeline anastomosis can be carried out very conveniently, and the difficulty of pipeline anastomosis is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a stapler. Background Art

[0002] For some diseases, such as lymphedema, Alzheimer's disease (AD), etc., the main treatment methods and means rely on surgical operations, such as: surgical operations on the aorta and peripheral blood vessels, deep neck lymphatic-venous anastomosis (LVA), etc. These operations require cutting some blood vessels and then anastomosing them, or anastomosing lymphatic vessels with blood vessels, lymph nodes with blood vessels, etc., that is, it is necessary to cut some channels in the human body and then anastomose them to treat various diseases.

[0003] Traditional duct anastomosis connection methods mainly rely on doctors to use surgical sutures to achieve anastomosis between ducts. However, duct suturing is a very difficult task that requires doctors to have extremely high operating skills, especially for very thin blood vessels or lymphatic vessels. It not only requires doctors to maintain a high degree of concentration for a long time, but also due to the fragility of duct tissue, it is easy to tear during the suturing process, increasing the risk of reflux or bleeding, which may lead to serious postoperative complications, thus bringing great difficulties and risks to duct anastomosis. Summary of the invention

[0004] In view of the deficiency of the prior art that suturing is required, the object of the present invention is to provide an anastomotic device that is convenient for anastomotic connection of pipelines.

[0005] To solve the above problems, the present invention provides the following technical solutions: A stapler comprises: a centrally-through anastomotic tube, wherein the anastomotic tube comprises a first anastomotic part and a second anastomotic part distributed at both ends; the ports of the first anastomotic part and the second anastomotic part are both oblique ports, the outer diameter of the first anastomotic part gradually decreases from the port to the middle, and the outer diameter of the second anastomotic part gradually decreases from the port to the middle.

[0006] Furthermore, it also includes a fixing piece; the fixing piece is arranged on the outer wall of the first anastomotic part and the second anastomotic part.

[0007] Furthermore, the fixing element is an outwardly protruding barb, and the barb located on the outer wall of the first anastomotic part and the barb located on the outer wall of the second anastomotic part are in opposite directions and both face the middle of the anastomotic tube.

[0008] Furthermore, the length of the barb is between 0.1-5 mm.

[0009] Furthermore, the stapler also includes a clamping portion; The clamping portion is disposed in the middle portion of the anastomotic tube, and is located between the first anastomotic portion and the second anastomotic portion.

[0010] Furthermore, the cross-sectional shape of the clamping portion is a polygon.

[0011] Furthermore, the outer diameter of the clamping portion is smaller than the outer diameters of the first anastomotic portion and the second anastomotic portion.

[0012] Furthermore, the stapler further comprises two snap rings, which are respectively located at two ends of the clamping portion, and the outer diameter of the snap ring is greater than the maximum outer diameter of the clamping portion.

[0013] Furthermore, a side of the clamping ring away from the clamping portion is tapered.

[0014] Furthermore, the angle between the oblique opening and the radial direction of the anastomotic tube is 45-70 degrees.

[0015] The beneficial effects of the present invention are as follows: the ports of the first anastomotic part and the second anastomotic part are both arranged as oblique ports, and the outer diameters gradually decrease from the ports to the middle, that is, both adopt gradually decreasing diameter changes, and the oblique ports and diameter changes make it very convenient for the stapler to penetrate into the blood vessels or lymphatic vessels, and the inside of the blood vessels or lymphatic vessels can be contracted and tightly clamped to the outer walls of the first anastomotic part and the second anastomotic part, and it is not easy to fall out. In this way, the use of the stapler can very conveniently perform pipeline anastomosis, greatly reducing the difficulty of pipeline anastomosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of the present invention; Figure 2 It is a front cross-sectional view of the present invention; Figure 3 A schematic diagram of the installation of the anastomotic tube of the present invention and one of the lymphatic vessels or blood vessels; Figure 4 It is a schematic diagram of the installation of the anastomosis tube of the present invention and another lymphatic vessel or blood vessel; Figure 5 This is a schematic diagram of the connection between two lymphatic vessels and / or blood vessels according to the present invention.

[0017] Reference numerals: 100, stapler; 110, anastomotic tube; 120, fixing member; 130, clamping part; 140, clamping ring; 111, first anastomotic portion; 112, second anastomotic portion; 121. Barb. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] For the convenience of describing the first direction, the second direction and the third direction in the embodiment of the present application, the first direction is the left-right direction in the drawings, the second direction is the front-back direction in the drawings, and the third direction is the up-down direction in the drawings. The x-axis arrow direction is referred to as the "right" direction in the following text, the y-axis arrow direction is referred to as the "up" direction in the following text, and the z-axis arrow direction is referred to as the "back" direction in the following text, which is not limited to the actual application of the present application.

[0021] like Figure 1-Figure 5 As shown, this embodiment provides a stapler 100 for anastomosing pipes in the human body. The pipes in the human body may be blood vessels, lymphatic vessels, etc. The stapler 100 includes a centrally-through anastomotic tube 110. The anastomotic tube 110 is used for end-to-end anastomotic connection between a first blood vessel and a second blood vessel, or for end-to-end anastomotic connection between a lymphatic vessel and a second blood vessel. The anastomotic tube 110 includes a first anastomotic portion 111 and a second anastomotic portion 112 distributed at both ends. The ports of the first anastomotic portion 111 and the second anastomotic portion 112 are both oblique, and the outer diameter of the first anastomotic portion 111 gradually decreases from the port to the middle, and the outer diameter of the second anastomotic portion 112 also gradually decreases from the port to the middle, that is, the first anastomotic portion 111 and the second anastomotic portion 112 are both variable diameter. The oblique opening makes it very easy for the first anastomotic part 111 and the second anastomotic part 112 to penetrate into the blood vessels or lymphatic vessels. The gradually decreasing outer diameter makes it easier to penetrate into the blood vessels and lymphatic vessels. The ports adopt an over-supporting method so that the inside of the blood vessels or lymphatic vessels can shrink and tightly clamp onto the outer wall of the first anastomotic part 111 and the second anastomotic part 112, and are not easy to fall out. In this way, the anastomotic device 100 can be used to perform pipeline anastomosis very conveniently, greatly reducing the difficulty of pipeline anastomosis.

[0022] It can be set that the first anastomotic part 111 is connected to the first blood vessel or lymphatic vessel, and the second anastomotic part 112 is connected to the second blood vessel, which can be a venous blood vessel; of course, the first anastomotic part 111 can also be connected to the second blood vessel, and the second anastomotic part 112 can also be connected to the first blood vessel or lymphatic vessel, and the connection is made specifically according to the anastomotic requirements. Furthermore, the maximum outer diameter of the first anastomotic part 111 is greater than the maximum outer diameter of the second anastomotic part 112. Furthermore, the angle between the oblique mouth of the first anastomotic part 111 and the second anastomotic part 112 and the radial direction of the anastomotic tube 110 is 45-70 degrees. The 45-70 degree design can avoid secondary damage to the lymphatic vessels or blood vessels when the anastomotic tube 110 is inserted, and also make the process of the anastomotic tube 110 entering the lymphatic vessels or blood vessels smoother.

[0023] Furthermore, the stapler 100 further includes a fixing member 120. The fixing member 120 is disposed on the outer wall of the first anastomotic portion 111 and the second anastomotic portion 112, and is used to further fix the first blood vessel, or lymphatic vessel, or the second blood vessel, so that the first blood vessel, or lymphatic vessel, or the second blood vessel does not shift or fall out.

[0024] In this mode, the fixing member 120 is a protruding barb 121. Furthermore, the barb 121 located on the outer wall of the first anastomotic part 111 and the barb 121 located on the outer wall of the second anastomotic part 112 are in opposite directions and both face the middle of the anastomotic tube 110. By providing the barbs 121 facing the middle at both ends of the anastomotic tube 110, the lymphatic vessel or blood vessel can be embedded in the inside of the lymphatic vessel or blood vessel after being sheathed on both ends of the anastomotic tube 110, generating a fixing force in the opposite direction of the dislodging direction, so that the lymphatic vessel or blood vessel is not easily detached from the anastomotic tube 110.

[0025] Furthermore, the number of the barbs 121 is multiple, and the multiple barbs 121 are divided into multiple groups, and each group of barbs 121 is evenly arranged around the outer wall of the first anastomotic part 111 and the second anastomotic part 112, that is, evenly arranged around both ends of the anastomotic tube 110. The design of multiple barbs 121 can prevent the lymphatic vessels or blood vessels from being easily separated from the anastomotic tube 110 under the action of the multiple barbs 121 after the lymphatic vessels or blood vessels are sleeved on the anastomotic tube 110. By evenly arranging each group of barbs 121 around the anastomotic tube 110, the force of the barbs 121 on the anastomotic tube 110 can be uniform, so that the lymphatic vessels or blood vessels are not easily scratched.

[0026] The length of the barb 121 is between 0.1-5 mm, which can prevent the lymphatic vessels or blood vessels from being punctured during installation, and can also prevent the lymphatic vessels or blood vessels from being easily separated from the anastomosis tube 110 because they cannot be fixed by the barb 121 .

[0027] In this embodiment, the stapler 100 is degradable. The stapler tube 110 and the barbs 121 are made of degradable materials. Specifically, they can be medical degradable materials such as polylactic acid, polyvinyl acid, and magnesium-based degradable metals. Of course, the stapler 100 can also use long-term implant metals such as nickel-titanium alloy and stainless steel. That is, different materials are used for docking according to actual needs.

[0028] In this embodiment, the stapler 100 further includes a clamping portion 130. The clamping portion 130 is disposed in the middle of the anastomotic tube 110, between the first anastomotic portion 111 and the second anastomotic portion 112. The clamping portion 130 is used to be clamped by a clamping instrument such as surgical forceps. Since the anastomotic tube 110 is relatively thin, the clamping portion 130 is provided to facilitate the insertion of the anastomotic tube 110 into a blood vessel or lymphatic vessel by clamping, so that the doctor can stably clamp and perform operation and anastomosis.

[0029] Furthermore, the cross-sectional shape of the clamping portion 130 is set to be a polygon, so that when the clamping portion 130 is clamped, it can be easily clamped and will not easily slip or rotate.

[0030] Furthermore, the outer diameter of the clamping portion 130 is smaller than the outer diameters of the first anastomotic portion 111 and the second anastomotic portion 112. Thus, after the anastomotic tube 110 is clamped, the clamping device will not slide along the axial direction of the anastomotic tube 110.

[0031] In this embodiment, the anastomosis device 100 further includes two snap rings 140, which are respectively located at the two ends of the clamping part 130, and the outer diameter of the snap ring 140 is greater than the maximum outer diameter of the clamping part 130. After the corresponding side lymphatic vessels or blood vessels are sleeved on the corresponding first anastomotic part 111 or the second anastomotic part 112, the corresponding side lymphatic vessels or blood vessels can be sleeved on the corresponding side snap ring 140 in an over-supported manner, and the ports of the lymphatic vessels or blood vessels can be tightened and snapped on the snap ring 140, and the snap ring 140 is further used to prevent the detachment and displacement. After the lymphatic vessels or blood vessels are sleeved on the anastomotic tube 110 and fixed by the barbs 121 and the snap ring 140, a stable anastomosis can be performed, so that the anastomosis can be completed without sutures, which greatly reduces the difficulty and risk of the anastomosis. At the same time, the snap ring 140 can also prevent blood or lymph from overflowing.

[0032] like Figure 5 As shown, in this embodiment, the side of the clamping ring 140 away from the clamping portion 130 is tapered. That is, when the lymphatic vessel or blood vessel is installed, the lymphatic vessel or blood vessel easily passes over the tapered portion on the clamping ring 140 and is sleeved on the clamping ring 140.

[0033] In summary, the anastomosis device provided by the present invention has ports of the first anastomosis part and the second anastomosis part both arranged as oblique ports, and the outer diameters gradually decrease from the ports to the middle, that is, both adopt gradually decreasing diameter changes. The oblique ports and the diameter changes make it very convenient for the anastomosis device to penetrate into the blood vessels or lymphatic vessels, and the interior of the blood vessels or lymphatic vessels can be contracted and tightly clamped to the outer walls of the first anastomosis part and the second anastomosis part, and it is not easy to fall out. In this way, the use of the anastomosis device can very conveniently perform pipeline anastomosis, greatly reducing the difficulty of pipeline anastomosis.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stapler, characterized in that: include: A centrally-through anastomotic tube comprises a first anastomotic part and a second anastomotic part distributed at both ends; the ports of the first anastomotic part and the second anastomotic part are both oblique, the outer diameter of the first anastomotic part gradually decreases from the port to the middle, and the outer diameter of the second anastomotic part gradually decreases from the port to the middle.

2. The stapler according to claim 1, characterized in that: It also includes a fixing piece; the fixing piece is arranged on the outer wall of the first anastomotic part and the second anastomotic part.

3. The stapler according to claim 2, characterized in that: The fixing piece is an outwardly protruding barb, and the barb located on the outer wall of the first anastomotic part and the barb located on the outer wall of the second anastomotic part are in opposite directions and both face the middle of the anastomotic tube.

4. The stapler according to claim 3, characterized in that: The length of the barb is between 0.1 and 5 mm.

5. The stapler according to claim 1, characterized in that: The stapler further comprises a clamping portion; The clamping portion is disposed in the middle portion of the anastomotic tube, and is located between the first anastomotic portion and the second anastomotic portion.

6. The stapler according to claim 5, characterized in that: The cross-sectional shape of the clamping portion is a polygon.

7. The stapler according to claim 5, characterized in that: The outer diameter of the clamping portion is smaller than the outer diameters of the first anastomotic portion and the second anastomotic portion.

8. The stapler according to claim 6, characterized in that: The stapler further comprises two clamping rings, which are respectively located at two ends of the clamping portion, and the outer diameter of the clamping ring is greater than the maximum outer diameter of the clamping portion.

9. The stapler according to claim 8, characterized in that: A side of the clamping ring away from the clamping portion is tapered.

10. The stapler according to claim 1, characterized in that: The angle between the oblique opening and the radial direction of the anastomotic tube is 45-70 degrees.

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