Vascular Anastomosis Devices

Abstract

The vascular anastomosis device includes a vascular jaw unit and a first vascular fixation component, the vascular jaw unit having a vascular anastomosis ring assembled on the first vascular fixation component, the first vascular fixation component including a first tube having a first opening and a first guide rail, a vascular positioning member connected to the first tube, a second tube disposed within the first tube, a vascular support unit assembled on the second tube and positioned near the vascular positioning member, an advancement member disposed within the first tube, and a third tube disposed within the advancement member and having a cross rod and a guide rod, the vascular support unit including a vascular support body and a vasodilator member.

Description

[Technical Field]

[0001] The present invention relates to a vascular anastomosis device. [Background technology]

[0002] Vascular anastomosis techniques are a major advancement in microsurgery, allowing for efficient vascular connection and playing an increasingly important role in micro-repair and regeneration. Currently, in addition to traditional manual suturing, other new vascular anastomosis techniques, such as the routine method, adhesive method, anastomosis clip method, or stapler method, have also been significantly developed. The stapler method can be widely used in the repair and regeneration of tissues in the limbs, chest, oral cavity, maxillofacial region, etc., and has been proven to provide better therapeutic outcomes for patients.

[0003] However, conventional stapling methods still rely on the manual use of a vascular clamp to rotate and bend the vessel wall 90 degrees outward and then secure the rotated vessel wall to the staples in a specific order. However, this process relies on the surgeon's skilled technique, and if the patient's vessel is hardened or fragile, this process can be difficult and the vessel is easily damaged by uneven force. Furthermore, even if this process is completed, there is no guarantee that the vessel wall will be properly secured. Therefore, conventional methods using manual staplers have problems such as low securing effectiveness, blood leakage from the needle holes, long time required, and low alignment accuracy. The conventional manual method requires first treating both ends of the vessel wall separately for subsequent vascular coaptation, which needs to be improved. Furthermore, due to manual fixation, the same securing effectiveness cannot be guaranteed each time the stapler is used manually, which may result in the secured vessel falling off inside the patient's body and posing a risk of further surgery.

[0004] Therefore, there is an urgent need to provide improved vascular anastomosis devices to alleviate or mitigate the above-mentioned problems. Summary of the Invention

[0005] In view of the above, according to one aspect of the present invention, there is provided a vascular anastomosis device for improving the fixation effect of a vascular anastomosis device, shortening the operation time, reducing the positioning time, improving the convenience of use, and performing vascular connection through a simple process, so that the vascular anastomosis device can maximize its functionality in order to reduce the burden on a surgeon or the risk of further surgery.

[0006] Thus, the vascular anastomosis device of the present invention includes a vascular jaw unit and a first vascular fixation component, the vascular jaw unit being provided with a vascular anastomosis ring, the vascular anastomosis ring being sleeved onto the first vascular fixation component, such that when the vascular anastomosis device is manipulated, the blood vessel can be expanded outward at a predetermined angle (e.g., 90 degrees) for subsequent fixation relative to the vascular anastomosis ring.

[0007] The first vascular fixation component further includes a first tube, a vascular positioning member, a second tube, a vascular support unit, an advancement member, and a third tube. The first tube has a first end and a second end opposite the first end, and the first tube is provided with a first opening and a first guide rail. The vascular positioning member is connected to the first end of the first tube. Meanwhile, the vascular positioning member may be provided with a first protrusion at a third end opposite the first end. The vascular dilation member for the blood vessel may be provided with a first recessed hole positioned to correspond to the first protrusion, but the present invention is not limited thereto. By moving the first tube, the first protrusion can be moved out of the first recessed hole, allowing the vascular positioning member to expand outward to smoothly sleeve onto the blood vessel. Then, when the first protrusion moves into the first recessed hole, the blood vessel is attached to and clamped by the vascular support unit.

[0008] Next, the second tube is housed within the first tube. The vascular support unit is assembled onto the second tube and positioned adjacent to the third end of the vascular positioning member. The third end is opposite the first end of the first tube. The vascular support unit includes a vascular support body and a vasodilator member, and the vasodilator member is assembled onto the vascular support body. By moving the second tube, the vasodilator member is pivotally rotated by a predetermined angle (e.g., 90 degrees) to outwardly expand the blood vessel attached to the vascular support unit, while simultaneously securing the blood vessel to the vascular anastomosis ring.

[0009] Furthermore, an advancement member is housed in the first tube, the advancement member being positioned adjacent to the second end of the first tube. Because the advancement member is engaged within the first tube, rearward movement of the advancement member causes the vessel positioning member to expand outward to sleeve into the vessel. A third tube is housed in the advancement member, the third tube having a lateral rod and a guide rod, the lateral rod being positioned corresponding to the first opening of the first tube to allow the lateral rod to move within the first opening of the first tube, and the guide rod being positioned corresponding to the first guide rail, so that the guide rod can move along the first guide rail.

[0010] In the vascular anastomosis device of the present invention, the vascular jaw unit includes a first portion and a second portion, and the first portion and the second portion can be pivotally connected via a pivot member. A vascular anastomosis ring can be placed on the first portion and another vascular anastomosis ring can be placed on the second portion, but the present invention is not limited thereto. Furthermore, the present invention may further include another first vascular fixation component, and the other vascular anastomosis ring can be sleeved onto the other first vascular fixation component, but the present invention is not limited thereto. After both ends of the blood vessel are fixed to the vascular anastomosis rings of the first portion and the second portion, respectively, the pivot member can be pivotally rotated so that the first portion and the second portion can face each other, thereby enabling anastomosis of the two ends of the blood vessel. Meanwhile, since two sets of identical vascular anastomosis rings are provided simultaneously, both ends of the blood vessel can be processed synchronously to complete the vascular anastomosis process.

[0011] In the vascular anastomosis device of the present invention, the first vascular fixation component may further include a fourth tube, which may be provided with a first through-hole, and a transverse rod may be assembled within the first through-hole of the fourth tube and protrude from the opening of the first tube so as to rotate along the first through-hole of the fourth tube simultaneously with the movement of the third tube, but the present invention is not limited thereto.

[0012] The vascular anastomosis device of the present invention may further include a housing, and the vascular jaw unit and the first vascular fixation component may be housed in the housing, but the present invention is not limited thereto. Furthermore, the housing of the present invention may be provided with a second guide rail, and the second guide rail may be arranged corresponding to the horizontal rod, but the present invention is not limited thereto. This allows the third tube to move along the path of the second guide rail. Furthermore, the housing of the present invention may be provided with a third guide rail, and a first protrusion may be arranged on the first tube, and the third guide rail may be arranged corresponding to the first protrusion, but the present invention is not limited thereto. This ensures that the first tube does not rotate relative to the housing.

[0013] The vascular anastomosis device of the present invention may further include a base, which may be housed in a housing, and which may be provided with a clamping and positioning unit, and the vascular jaw unit may be arranged corresponding to the clamping and positioning unit, but the present invention is not limited thereto. Furthermore, the vascular jaw unit may include a first portion and a second portion, which may be pivotally connected via a pivot member. The clamping and positioning unit may include a recess, and when the first portion and the second portion are clamped together, the first portion and the second portion may be housed in the recess. When the vascular jaw unit is forcibly moved, the vascular jaw unit abuts against the clamping and positioning unit, causing the pivot member to begin pivotal rotation, thereby clamping the first portion and the second portion toward each other and completing the vascular anastomosis, but the present invention is not limited thereto.

[0014] The vascular anastomosis device of the present invention may further include a first actuating member that may be disposed on the base, and the vascular jaw unit may be pivoted relative to the first actuating member, but the present invention is not limited thereto. As a result, the first actuating member is operably connected to the vascular jaw unit.

[0015] In the vascular anastomosis device of the present invention, the first actuating member may be provided with a third protrusion, which may be positioned to correspond to the first protruding portion of the base, but the present invention is not limited thereto. When the third protrusion is engaged with the first protruding portion, when the base moves forward, the first actuating member may be actuated to move forward at the same time. However, the first actuating member may only move forward relative to the base, and may not move backward relative to the base.

[0016] The vascular anastomosis device of the present invention may further include a second actuating member, which may be assembled in the sliding slot of the advancing member and may be provided with a first connecting member, which may be connected to the first connecting element, but the present invention is not limited thereto. When the first connecting element moves, the second actuating member is actuated to move, and the sliding slot provides the second actuating member with an appropriate movement space.

[0017] The vascular anastomosis device of the present invention may further include a third actuation member, which may further include a second protrusion. The second protrusion may be disposed corresponding to the sliding member, which may be pivoted by the rotating element, which may be disposed adjacent to the first fixing member of the housing, which may be disposed corresponding to the second protrusion of the housing, or which may be disposed corresponding to the fourth protrusion of the advancing member, although the present invention is not limited thereto. Furthermore, the present invention may further include a device body, which may include a first fixing member and may be assembled within the device body via the first fixing member, although the present invention is not limited thereto. When the rotating element rotates due to contact with the second protrusion of the housing, the rotating element becomes engaged with the fourth protrusion, thereby allowing the rotating element to be operably connected to the advancing member.

[0018] The vascular anastomosis device of the present invention may further include a fifth tube that can be housed in the device body, and the fifth tube member may be provided with an engagement member and an elastic element, but the present invention is not limited thereto. Furthermore, the present invention may further include a displacement control member that can be housed in the device body, and the displacement control member may be arranged corresponding to the engagement member, but the present invention is not limited thereto. When the engagement member contacts the displacement control member, the engagement member begins to rotate and the tenon of the engagement member is released, thereby allowing the advancement member and the fifth tube to move relative to each other.

[0019] Other objects, advantageous effects, and novel features of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 2]1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 3] 1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 4] 1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 5] 1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 6] 1 is a schematic diagram illustrating the actuation mechanism of a vascular jaw unit and a portion of a first vascular fixation component according to an embodiment of the present invention. FIG. [Figure 7] FIG. 2 is an exploded view of a first vascular fixation component according to an embodiment of the present invention. [Figure 8] 1 is a schematic diagram illustrating the actuation mechanism of a first vascular fixation component according to an embodiment of the present invention. [Figure 9] 1 is a schematic diagram illustrating the actuation mechanism of a first vascular fixation component according to an embodiment of the present invention. [Figure 10] 1 is a schematic diagram illustrating the actuation mechanism of a first vascular fixation component according to an embodiment of the present invention. [Figure 11] 1 is a schematic diagram illustrating the actuation mechanism of a first vascular fixation component according to an embodiment of the present invention. [Figure 12] 1 is an exploded view of a first vascular anastomosis assembly according to an embodiment of the present invention. FIG. [Figure 13] 1 is a schematic diagram illustrating the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 14] 1 is a schematic diagram illustrating the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 15] 1 is a schematic diagram illustrating the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 16] 1 is a schematic diagram illustrating the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 17] 1 is a schematic diagram illustrating the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 18] 1 is a perspective view of a vascular anastomosis device according to an embodiment of the present invention. FIG. [Figure 19] FIG. 2 is a perspective view of a first operation unit according to the embodiment of the present invention. [Figure 20] FIG. 2 is a perspective view of a second operation unit according to the embodiment of the present invention. [Figure 21] FIG. 10 is a perspective view of a third operation unit according to an embodiment of the present invention. [Figure 22] FIG. 10 is a perspective view of a fourth operation unit according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] Various embodiments of the present invention are provided below. These embodiments are provided to explain the technical content of the present invention, but do not limit the scope of the claims of the present invention. The features of one embodiment can be applied to other embodiments by appropriate modification, substitution, combination, or separation.

[0022] It should be noted that in this text, unless otherwise specified, the presence of an element preceded by the article "a" is not limited to the presence of a single element, but may include one or more elements.

[0023] Furthermore, in this document, unless otherwise specified, ordinal numbers such as "first" and "second" are used only to distinguish between multiple components of the same name and do not imply any ranking, hierarchy, execution order, or processing order between them. A "first" component and a "second" component may occur together in the same component or may occur separately in different components. The presence of a component with a higher ordinal number does not necessarily imply the presence of another component with a lower ordinal number.

[0024] Furthermore, in this text, terms such as "above," "below," "left," "right," "in front," "behind," and "between" are used only to describe relative positions between components and may be expanded in interpretation to include translation, rotation, or mirroring.

[0025] Furthermore, in this text, unless otherwise specified, "a component is on another component" does not necessarily mean that the component is in contact with the other component.

[0026] Furthermore, in this text, the terms "preferably" or "more preferably" are used to describe optional or additional components or features, i.e., these components or features are not required and may be omitted.

[0027] Furthermore, in this document, unless otherwise specified, a reference to a component being "suitable" or "applicable" to another component means that the other component is not part of the subject matter of the application, but is merely an exemplary basis or reference useful in conceiving the nature or application of the component. Similarly, in this document, unless otherwise specified, a reference to a component being "suitable" or "applicable" to a configuration or operation describes the characteristics of the component, not that the configuration has been configured or the operation has been performed.

[0028] Structure of First Vascular Fixation Component 20 FIG. 1 is a cross-sectional view of a portion of a vascular jaw unit 10 and a first vascular fixation component 20 according to an embodiment of the present invention. FIG. 7 is an exploded view of a first vascular fixation component 20 according to an embodiment of the present invention. FIG. 8 is a perspective view of a first vascular fixation component 20 according to an embodiment of the present invention.

[0029] 1, 7, and 8, the first vascular fixation component 20 of this embodiment includes a first tube 201, a vascular positioning member 202, a first joint member 203, a first protrusion 204, a second tube 205, a vascular support unit 207, a fourth tube 208, an advancement member 209, and a third tube 210. The first tube 201 is connected to the vascular positioning member 202 via the first joint member 203. In other words, the first joint member 203 is disposed between the first tube 201 and the vascular positioning member 202. The first tube 201 has a first end 201a and a second end 201b opposite to the first end 201a, and is provided with a first opening 2011 and a first guide rail 2012. The vessel positioning member 202 is provided with a first protrusion 2021 on the inside of the third end 202a, which corresponds to the first end 201a of the first tubular member 201. Meanwhile, the first protrusion 204 is disposed on the first tube 201 and corresponds to the third guide rail 3014 of the housing 301 (shown in FIG. 12 ).

[0030] Furthermore, the second tube 205 is housed within the first tube 201. The vascular support unit 207 is sleeved onto the outside of the second tube 205 and positioned adjacent to the third end 202a of the vascular positioning member 202. The vascular support unit 207 includes a vascular support body 2071 and a vasodilator member 2072. The vasodilator member 2072 is assembled onto the vascular support body 2071, and the vasodilator member 2072 is provided with a first recessed hole 2073, a second recessed hole 2074, and a rotating shaft 2075, and the first recessed hole 2073 is positioned corresponding to the first protrusion 2021. In this embodiment, the vascular support unit 207 is housed within the vascular positioning member 202 and the first joint member 203 and sleeved onto the outside of the second tube 205.

[0031] Furthermore, the advancement member 209 is housed in the first tube 201 and sleeved on the outside of the second tube 205, and the advancement member 209 is disposed adjacent to the second end 201b of the first tube 201. In this embodiment, the advancement member 209 includes a front advancement portion 2091 and a rear advancement portion 2092, and a sliding slot 2093 is provided on the rear advancement portion 2092. Meanwhile, the third tube 210 is housed in the front advancement portion 2091 of the advancement member 209, and the third tube 210 is provided with a guide rod 2101 and a cross rod 2051, and the fourth tube 208 is sleeved on the outside of the third tube 210, and the guide rod 2101 is disposed corresponding to the first guide rail 2012 of the first tube 201. That is, the guide rod 2101 moves along the first guide rail 2012, and the horizontal rod 2051 is assembled in the first through hole 2081 of the fourth tube 208 and protrudes from the first opening 2011 of the first tube 201.

[0032] Structure of Vascular Anastomosis Assembly 30 FIG. 12 is an exploded view of a vascular anastomosis assembly 30 according to an embodiment of the present invention. FIG. 13 is a perspective view of a vascular anastomosis assembly 30 according to an embodiment of the present invention.

[0033] As shown in FIGS. 1 , 12 , and 13 , the vascular anastomosis assembly 30 of this embodiment includes a vascular jaw unit 10, a vascular fixation component 20, a housing 301, a base 302, a first actuation member 303, and a second actuation member 304. The vascular jaw unit 10 includes a first portion 101 and a second portion 102, which are pivotally connected via a pivot member 103. The vascular jaw unit 10 is further provided with a vascular anastomosis ring 104, which is sleeved onto the first vascular fixation component 20. In this embodiment, the vascular anastomosis assembly 30 includes two vascular anastomosis rings 104 and two first vascular fixation components 20. One vascular anastomosis ring 104 is disposed on the first portion 101 and sleeved onto the first vascular fixation component 20, and the other vascular anastomosis ring 104 is disposed on the second portion 102 and sleeved onto the other first vascular fixation component 20. Furthermore, a first vascular fixation component 20 is inserted into the first portion 101 and the other first vascular fixation component 20 is inserted into the second portion 102 .

[0034] Next, the vascular jaw unit 10, the first vascular fixation component 20, the base 302, the first actuating member 303 and the second actuating member 304 are housed in a housing 301, which includes a front housing portion 3011 and a rear housing portion 3012. Inside the housing 301, there are two second guide rails 3013, two third guide rails 3014, two first fixation members 3015, two correspondingly arranged sliding members 3018 and two grooves 3019, and a single fifth ridge 3017. The second guide rail 3013 is disposed corresponding to the cross rod 2051 (shown in FIG. 7 ), the third guide rail 3014 is disposed corresponding to the first protrusion 204 on the first tube 201 (shown in FIG. 7 ), while the fifth protrusion 3017 is provided to block the second actuating member 304 so that the second actuating member 304 cannot move along direction D1. Meanwhile, the base 302 is provided with a first protrusion 3021 and a clamping positioning unit 3022, the clamping positioning unit 3022 having a recess 3023, and the vascular jaw unit 10 and the clamping positioning unit 3022 are correspondingly disposed. Furthermore, the groove 3019 accommodates a sliding member 3018, and the sliding member 3018 can move within the groove 3019 along direction D1 or direction D2.

[0035] In this embodiment, the first actuating member 303 is disposed on the base 302, and the vascular jaw unit 10 is pivoted relative to the first actuating member 303. More specifically, the first actuating member 303 is pivotally connected to the pivot member 103 of the vascular jaw unit 10. Furthermore, the first actuating member 303 is provided with a third protrusion 3031, which is disposed corresponding to the first protrusion 3021 of the base 302. The second actuating member 304 is assembled in the sliding slot 2093 of the advancing member 209 connected to the second tube 205 (shown in FIG. 7 ), and the second actuating member 304 is provided with a first connecting member 3041, which is connected to the first coupling element 5045.

[0036] Structure of vascular anastomosis device 1 FIG. 18 is a perspective view of a vascular anastomosis device 1 according to an embodiment of the present invention. FIG. 19 is a perspective view of a first operation unit 501 according to an embodiment of the present invention. FIG. 20 is a perspective view of the second operation unit 502 according to the embodiment of the present invention. FIG. 21 is a perspective view of a third operation unit 503 according to an embodiment of the present invention. FIG. 22 is a perspective view of the fourth operation unit 504 according to the embodiment of the present invention.

[0037] 18 , the vascular anastomosis device 1 of this embodiment includes a vascular anastomosis assembly 30, a device body 40, an operation assembly 50, and a release assembly 60, and the device body 40 houses the vascular anastomosis assembly 30, the operation assembly 50, and the release assembly 60. The structure of the vascular anastomosis assembly 30 can be understood from the above description. The device body 40 has two correspondingly arranged second openings 402 (only one second opening 402 is shown in FIG. 18 due to the angle of view), and the second opening 402 is provided with a third button 4021 arranged corresponding to the first fixing member 3015 of the housing 301. The housing 301 is assembled to the second opening 402 of the device body 40 via the first fixing member 3015, whereby the vascular anastomosis assembly 30 is housed in the device body 40. Furthermore, the vascular anastomosis assembly 30 can be separated from the device body 40 by pressing the third button 4021 to actuate the first fixing member 3015 and push out the second protrusion 3053 of the third actuation member 305 (shown in FIG. 19).

[0038] 18 and 19 , the operation assembly 50 includes a first operation unit 501, a second operation unit 502, a third operation unit 503, and a fourth operation unit 504, and the first operation unit 501 includes two first buttons 5011, two first elastic elements 5012, two first connecting rods 5013, two second connecting rods 5014, and two third actuating members 305. In this embodiment, the first button 5011 is disposed corresponding to the third opening 403 of the device body 40, so that a portion of the first button 5011 is housed in the device body 40. The first button 5011 is connected to the first elastic element 5012 via a first connecting rod 5013, and the first connecting rod 5013 is provided with a third fixing member 50131, which is assembled to a second through-hole 50141 of the second connecting rod 5014 adjacent to the first end 5014a. Meanwhile, the third actuating member 305 has a fourth fixing member 3052, which is assembled to a third through-hole 50142 of the second connecting rod 5014 adjacent to the second end 5014b. Furthermore, the second connecting rod 5014 of the first operating unit 501 is further provided with a fourth through-hole 50143 adjacent to the first end 5014a, thereby allowing the first operating unit 501 to pivot to the first fixed base 404 of the device body 40 via the fourth through-hole 50143. In another embodiment of the present invention, the two first buttons 5011 of the first operating unit 501 can be respectively operated to clamp two blood vessels 80 sequentially (as shown in FIG. 3). Furthermore, please refer to FIGS. 12, 14, and 18. In this embodiment, a second protrusion 3053 is provided at the front end of each third actuation member 305. The second protrusion 3053 is engaged with the fourth opening 30151 on the sliding member 3018, and the sliding member 3018 is pivoted by the rotating elements 3051, which are respectively disposed adjacent to the first fixing members 3015 of the housing 301, the rotating elements 3051 being disposed corresponding to the second protrusion 3016 of the housing 301, and the rotating elements 3051 being disposed corresponding to the fourth protrusion 2094 of the advancing member 209. Meanwhile, please refer to FIGS. 12 and 14.As the second protrusion 3053 engages with the fourth opening 30151 on the sliding member 3018, the third button 4021 is pressed to actuate the first fixing member 3015, thereby disengaging the second protrusion 3053 from the fourth opening 30151, thereby separating the vascular anastomosis assembly 30 from the device body 40. Thus, the vascular anastomosis assembly 30 is a removable assembly (as shown in FIG. 12 ).

[0039] 18 and 20 , the second operation unit 502 includes a second holding element 5021, a second elastic element 5022, a fifth fixed member 5023, two third elastic elements 5024, and a fourth actuation member 5025. The second holding element 5021 has a fifth through hole 50211, two sixth through holes 50212, two seventh through holes 50213, and two second protrusions 50214. In this embodiment, both ends of the second elastic element 5022 are fixed to the fifth through hole 50211 and the second fixed base 405 of the device body 40, respectively. Meanwhile, the fifth fixed member 5023 passes through the two correspondingly arranged sixth through holes 50212, whereby the second holding element 5021 is pivoted within the device body 40 around the fifth fixed member 5023 as a pivot axis. The fourth actuation member 5025 has a first portion 5025a and a second portion 5025b, the first portion 5025a and the second portion 5025b being respectively connected to two different third elastic elements 5024, and each of the first portion 5025a and the second portion 5025b being provided with a sixth fixing member 50251 which is assembled to the seventh through-hole 50213 of the second holding element 5021. Furthermore, when the second holding element 5021 is maximally pressed, the two second protruding portions 50214 of the second holding element 5021 are respectively fixed to the seventh fixed base 409 of the device body 40 and can be fixed onto the fourth connecting rod 603 of the release member 60. In another embodiment of the present invention, the two second holding elements 5021 of the second operating unit 502 may be integrated to form a single holding element to improve operation convenience.

[0040] 18 and 21 , the third operation unit 503 includes a third holding element 5031, a fourth elastic element 5032, a seventh fixing member 5033, two fifth elastic elements 5034, two fifth tubes 5035, two engagement members 5036, and two sixth elastic elements 5037. The third holding element 5031 has an eighth through hole 50311, two ninth through holes 50312, two tenth through holes 50313, and two third protruding portions 50315, and both ends of the fourth elastic element 5032 are fixed to the eighth through hole 50311 and the third fixed base 406 of the device body 40, respectively. Furthermore, the seventh fixing member 5033 passes through two ninth through-holes 50312 on the third holding element 5031, so that the third holding element 5031 is pivoted within the device body 40 around the seventh fixing member 5033 as a pivot axis. Meanwhile, the fifth tube 5035 and the sixth elastic element 5037 are housed in the device body 40, and the fifth tube 5035 is sleeved on the outside of the sixth tube 5038. In this embodiment, the fifth tube 5035 is connected to the sixth tube 5038 via the sixth elastic element 5037, and the fifth tube 5035 is also connected to the fifth elastic element 5034. Furthermore, the fifth tube 5035 is provided with an eighth fixing member 2096, which is assembled into the tenth through-hole 50313 of the third holding element 5031 through the fourth opening 50314. Next, the engagement member 5036 has a tenon 50361, which is disposed on the fifth tube 5035, while the tenon 50361 is disposed corresponding to the displacement control member 401 of the device body 40. When the third holding element 5031 is maximally pressed, the two third protruding portions 50315 of the third holding element 5031 are respectively fixed to the eighth fixed base 410 of the device body 40 and can be fixed on the fourth connecting rod 603 of the release assembly 60. In another embodiment of the present invention, the two third holding elements 5031 of the third operating unit 503 may be integrated to form a single holding element for improving the convenience of operation.

[0041] 18 and 22 , the fourth operation unit 504 includes a fourth holding element 5041, a first gear 5042, a second gear 5043, a third gear 5044, a first connecting element 5045, a second connecting element 5046, a lock assembly 5047, a seventh elastic element 5048, an eighth elastic element 5049, a ninth fixing member 5050, a fourth gear 5051, and a second lock element 5052. The fourth holding element 5041 has an eleventh through hole 50411 and a twelfth through hole 50412, and both ends of the eighth elastic element 5049 are fixed to the twelfth through hole 50412 and the fourth fixed base 407 of the device body 40, respectively. Meanwhile, when the ninth fixing member 5050 passes through the eleventh through-hole 50411 on the fourth holding member 5041, the fourth holding element 5041 is pivoted within the device body 40 around the ninth fixing member 5050 as a pivot axis. Furthermore, the fourth holding element 5041 is provided with a toothed structure 50413, and the toothed structure 50413 meshes with the first gear 5042. In this embodiment, the first gear 5042, the second gear 5043, the third gear 5044 and the fourth gear 5051 are arranged concentrically, while the first connecting element 5045 and the second connecting element 5046 mesh with the third gear 5044, the first connecting element 5045 is connected to the first connecting member 3041, the second connecting element 5046 is connected to the first actuating member 303 (shown in FIG. 12), and the first connecting element 5045 is further connected to the control assembly 90 via a seventh elastic element 5048. Furthermore, the control assembly 90 includes a control unit 901, and when the fourth holding element 5041 is pressed to the maximum, the first coupling element 5045 moves along direction D2, thereby bringing the first connecting member 3041 into contact with the control unit 901, thereby allowing the first coupling element 5045 to be released from the first connecting member 3041 to facilitate subsequent operation (shown in FIG. 13 ). Meanwhile, the fourth gear 5051 is disposed inside the hollow first gear 5042 and engages with two second locking elements 5052, respectively.

[0042] 18 and 22 , the lock assembly 5047 includes a first lock element 50471, an adjustment element 50472, a ninth elastic element 50473, and a fifth fixed base 50474, wherein the first lock element 50471 meshes with the second gear 5043, the adjustment element 50472 is connected to the ninth elastic element 50473 and abuts against the first lock element 50471, and the ninth elastic element 50473 is fixed to the sixth fixed base 408 of the device body 40. Meanwhile, the fifth fixed base 50474 of the lock assembly 5047 is assembled onto the third connecting rod 602 of the release assembly 60, the third connecting rod 602 is provided with the second button 601, and the third connecting rod 602 is connected to the fourth connecting rod 603. Furthermore, the fourth connecting rod 603 is provided with a tenth fixing member 604 , which is pivoted within the device body 40 .

[0043] Actuation Mechanism of Vascular Jaw Unit 10 and First Vascular Fixation Component 20 1-6 are schematic diagrams illustrating the operating mechanism of a vascular jaw unit 10 and a portion of a first vascular fixation component 20 (shown in FIG. 7) according to an embodiment of the present invention.

[0044] As shown in FIG. 1, where the vascular jaw unit 10 and the first vascular fixation component 20 (shown in FIG. 7) are not actuated at this moment, the first convex portion 2021 of the vascular positioning member 202 is positioned inside the first concave hole 2073 of the vascular dilation member 2072, and the first part 101 or the second part 102 of the vascular jaw unit 10 is sleeved onto the outside of the vascular positioning member 202.

[0045] 2, at this moment, the blood vessel positioning member 202 is inserted into the blood vessel 80. By operating the first button 5011 of the first operating unit 501 (the operating mechanism of the first operating unit 501 will be described in detail later (as shown in FIGS. 18 and 19 )), the blood vessel positioning member 202 moves along direction D2, and the first protrusion 2021 of the blood vessel positioning member 202 is separated from the first recessed hole 2073 of the blood vessel expansion member 2072, causing the blood vessel positioning member 202 to expand slightly outward, forming a gap G between the third end 202a of the blood vessel positioning member 202 and the blood vessel support body 2071, so that the blood vessel 80 can be sleeved onto the blood vessel support body 2071 and accommodated in the gap G.

[0046] As shown in Fig. 3, at this moment, the blood vessel 80 is sleeved onto the blood vessel support body 2071. By operating the first operating unit 501 (shown in Fig. 18), the blood vessel positioning member 202 moves along direction D1. The first protrusion 2021 of the blood vessel positioning member 202 returns to the first recessed hole 2073 of the blood vessel dilation member 2072, thereby eliminating the gap G (shown in Fig. 2), and the third end 202a of the blood vessel positioning member 202 clamps the blood vessel 80.

[0047] 4 in conjunction with FIG. 12, at this moment, the vascular jaw unit 10 is ready to be actuated. By operating the second operating unit 502 (the actuation mechanism of the second operating unit 502 will be described in detail below (as shown in FIG. 18)), the vascular jaw unit 10 moves along direction D1 from a position where it is initially sleeved outside the vessel positioning member 202 (as shown in FIG. 3) to a position where it is sleeved outside the vessel 80 to facilitate the subsequent process of securing the vessel to the vascular anastomotic ring 104.

[0048] As shown in FIG. 5 together with FIGS. 6-7, at this moment, the blood vessel 80 is in a state of being dilated outward. By operating the third operating unit 503 (the actuation mechanism of the third operating unit 503 will be described in detail later (as shown in FIG. 18 )), the vasodilator member 2072 operably connected to the third tube 210 moves along direction D1. Because the vasodilator member 2072 is assembled on the blood vessel support body 2071, the vasodilator member 2072 will be dilated outward after being pivotally rotated, thereby dilating the blood vessel 80 attached to the vasodilator member 2072 outward. Furthermore, because the vasodilator member 2072 and the blood vessel positioning member 202 move synchronously by a distance "a" along direction D1, the first protrusion 2021 remains engaged with the first recessed hole 2073 to tightly clamp the blood vessel 80.

[0049] 6 together with FIG. 1, at this moment, the blood vessel 80 is in a state of being fixed to the vascular anastomosis ring 104. By continuously operating the third operating unit 503 (shown in FIG. 18), the vasodilator member 2072 is pivotally rotated via the rotating shaft 2075 and moved a distance "b" along the direction D1 to fix the blood vessel 80 onto the vascular anastomosis ring member 104 to complete the vascular anastomosis process.

[0050] Actuation Mechanism of First Vascular Fixation Component 20 8-11 are schematic diagrams illustrating the operating mechanism of first vascular fixation component 20 (shown in FIG. 7) according to an embodiment of the present invention.

[0051] As shown in Figure 8, at this moment, the first vascular fixation component 20 is in an unactuated state (shown in Figure 7) corresponding to Figure 1. The guide rod 2101 is assembled in the first guide rail 2012, the lateral rod 2051 is assembled in the first through-hole 2081 and protrudes from the first opening 2011, and the guide rod 2101 and the lateral rod 2051 are disposed in a first position S1.

[0052] 7-8 and FIG. 9, at this moment, the blood vessel 80 is in a sleeved state, which corresponds to FIG. 2. By operating the first operating unit 501 (shown in FIG. 18), the advancement member 209 moves along direction D2, and the first tube 201 operatively connected to the advancement member 209 moves synchronously along direction D2. Furthermore, the third tube 210 and the fourth tube 208 can move relative to the first tube 201, so that the guide rod 2101 and the lateral rod 2051 move to the second position S2. Meanwhile, as shown in FIGS. 9 and 19, because the first button 5011 is connected to the first elastic element 5012, if the first button 5011 is not operated, the first elastic element 5012 provides an elastic force that retracts the guide rod 2101 and the lateral rod 2051 to the first position S1, whereby the blood vessel positioning member 202 clamps the blood vessel 80, which corresponds to FIG. 3. More specifically, by operating the first button 5011, the guide rod 2101 and the horizontal rod 2051 can be moved back and forth between a first position S1 and a second position S2.

[0053] 5 and 7, at this moment, the blood vessel 80 is in an outwardly dilated state, which corresponds to FIG. 5. By operating the third operating unit 503 (shown in FIG. 18), the third tube 210 moves along direction D1 and the horizontal rod 2051 is rotated along the first through-hole 2081, thereby moving the guide rod 2101 and the horizontal rod 2051 from position S1 to the third position S3. If the third tube 210 continues to move in direction D1, the horizontal rod 2051 will move a distance "a" along direction D1 (as shown in FIG. 6), and the guide rod 2101 will engage with the first guide rail 2012 and synchronously urge the first tube 201 to move a distance "a" along direction D1 (as shown in FIG. 6) to move from the third position S3 to the fourth position S4.

[0054] 11 together with FIGS. 4, 7, 17, and 18, at this moment, the blood vessel 80 is fixed to the vascular anastomosis ring 104, which corresponds to FIG. 6. By continuously operating the third operating unit 503, the third tube 210 continues to move along direction D1, whereby the guide rod 2101 and the horizontal rod 2051 move from a fourth position S4 to a fifth position S5, and then to a sixth position S6, thereby fixing the blood vessel 80 to the vascular anastomosis ring 104. Meanwhile, by pressing the fourth operating unit 504, the first coupling element 5045 and the first connecting member 3041 move along direction D2, and the second tube 205 in the blood vessel 80 moves synchronously along direction D2, while the guide rod 2101 and the horizontal rod 2051 move from the sixth position S6 to a seventh position S7.

[0055] Actuation mechanism of vascular anastomosis assembly 30 13-17 are schematic diagrams illustrating the operating mechanism of a vascular anastomosis assembly 30 according to an embodiment of the present invention.

[0056] 13, at this moment, the vascular anastomosis assembly 30 is in an unactuated state, which corresponds to FIGS. 1 and 8. The transverse rod 2051 assembled in the second guide rail 3013 is placed in a first position, and the first coupling element 5045 is assembled on the first connecting member 3041.

[0057] 12, at this moment, the blood vessel 80 is in a sleeved state, which corresponds to FIGS. 2 and 9. By operating the first operating unit 501 (shown in FIG. 18), the third actuating member 305 moves along direction D2, and the rotating element 3051 on the sliding member 3018 buckled to the third actuating member 305 contacts the second protuberance 3016 on the housing 301 (shown in FIG. 12), thereby causing the rotating element 3051 to pivot and engage with the fourth protuberance 2094, thereby actuating the third actuating member 305 and the advancing member 209 together to move along direction D2, thereby completing the process of the blood vessel 80 being sleeved.

[0058] 12 together with FIG. 15, at this moment, the vascular jaw unit 10 is in an actuated state, which corresponds to FIG. 4. By operating the second operating unit 502 (shown in FIG. 18), the fourth actuating member 5025 moves along direction D1 to urge the base 302. Furthermore, since the first protruding portion 3021 disposed on the base 302 is operatively connected to the third protuberance 3031, the first actuating member 303 also moves synchronously along direction D1, thereby moving and positioning the vascular jaw unit 10.

[0059] 16 together with FIG. 4, at this moment, the blood vessel 80 is fixed to the vascular anastomosis ring 104, which corresponds to FIGS. 6 and 11. By operating the third operating unit 503 (shown in FIG. 18), the advancing member 209 moves along direction D1, whereby the cross rod 2051 assembled in the second guide rail 3013 moves to sixth position S6, and the blood vessel 80 is fixed to the vascular anastomosis ring 104.

[0060] 17 in conjunction with FIG. 12, at this moment, an anastomosis is being performed on the fixed blood vessel 80. By operating the fourth operating unit 504 (shown in FIG. 18), the first coupling element 5045 moves along direction D2 and is operatively connected to the second actuating member 304 via the first connecting member 3041, thereby causing the second tube 205 and the first tube 201 (shown in FIG. 7) disposed in the blood vessel to move away from the vascular anastomosis ring 104 along direction D2, thereby allowing the transverse rod 2051 to reach the seventh position S7, while the first actuating member 303 moves along direction D1. The first part 101 and the second part 102 of the vascular jaw unit 10 correspond to the clamping positioning unit 3022, so that the vascular jaw unit 10 pivots around the pivot member 103 as a pivot axis, and the first part 101 and the second part 102 are clamped toward each other and placed in the recess 3023 of the base 302 to complete the process of anastomosis of the blood vessel 80. In this embodiment, the anastomosed blood vessel 80 can be separated from the vascular anastomosis assembly 30 from the top of the recess 3023.

[0061] Actuation Mechanisms of the Operating Assembly 50 and the Release Assembly 60 FIG. 19 is a perspective view of a first operation unit 501 according to an embodiment of the present invention. FIG. 20 is a perspective view of the second operation unit 502 according to the embodiment of the present invention. FIG. 21 is a perspective view of a third operation unit 503 according to an embodiment of the present invention. FIG. 22 is a perspective view of the fourth operation unit 504 according to the embodiment of the present invention.

[0062] As shown in FIG. 19 , by operating the first button 5011, the first button 5011 moves along direction D2, and the first elastic element 5012 is compressed by a force. Furthermore, the third fixing member 50131 and the second connecting rod 5014 assembled in the second through-hole 50141 are used to actuate the fourth fixing member 3052 assembled in the third through-hole 50142, with the fourth through-hole 50143 as a pivot axis, so that the fourth fixing member 3052 and the third actuating member 305 move synchronously along direction D2, thereby sleeved the blood vessel 80 (shown in FIGS. 2, 9, and 14). When the first button 5011 is not operated, the first elastic element 5012 applies an elastic force that moves the third actuating member 305 and the first button 5011 along direction D1, thereby constricting the blood vessel 80 (shown in FIG. 2).

[0063] As shown in FIG. 20 , by operating the second retaining member 5021, the second retaining member 5021 moves along direction D2. Furthermore, the sixth fixing member 50251 assembled in the seventh through-hole 50213 is used to actuate the fourth actuating member 5025 to move along direction D1, with the fifth fixing member 5023 assembled in the sixth through-hole 50212 as a pivot axis, and the fourth actuating member 5025 is connected to the base 302 (shown in FIG. 15 ), thereby allowing the vascular anastomosis ring 104 to move along direction D1 for positioning (shown in FIG. 4 ). Furthermore, in this embodiment, when the second retaining element 5021 is operated, the third retaining element 5031 gradually approaches the handle in synchronization to facilitate subsequent operation (shown in FIG. 21 ).

[0064] 21 , the third retaining element 5031 is operated to move the third retaining element 5031 along direction D2, and the eighth fixing member 2096 is actuated to move the sixth tube 5038 along direction D1 by entering the tenth through-hole 50313 from the fourth opening 50314, with the seventh fixing member 5033 assembled in the ninth through-hole 50312 as a pivot axis. Because the sixth tube 5038 is connected to the advancement member 209, the advancement member 209 moves along direction D1 to fix the blood vessel 80 to the vascular anastomosis ring 104 (shown in FIG. 5 ). Furthermore, when the third retention element 5031 is operated, the advancement member 209 continues to move along direction D1, causing the engagement member 5036 to contact the displacement control member 401 and the engagement member 5036 to flip over and release the tenon 50361, so that the fifth tube 5035 does not move with the advancement member 209, thereby allowing the fourth retention element 5041 to be continuously operated (shown in FIG. 22 ). On the other hand, when the vascular anastomosis assembly 30 is replaced (shown in FIG. 12 ), the sixth elastic element 5037 resets the third retention element 5031 and returns the tenon 50361 to its original position. Furthermore, in this embodiment, while the third retention element 5031 is being operated, the fourth retention element 5041 will synchronously gradually approach the handle to facilitate subsequent operation (shown in FIG. 22 ).

[0065] 22 , the fourth holding element 5041 is operated to move along direction D2 and rotate around the ninth fixing member 5050 assembled in the eleventh through-hole 50411 as a pivot axis, thereby causing the tooth structure 50413 on the fourth holding element 5041 to mesh with the first gear 5042. The tooth structure 50413 moves along direction D1 (i.e., clockwise when viewed from the angle of view of the drawing) to actuate the first gear 5042, the second gear 5043, the third gear 5044, and the fourth gear 5051 to rotate synchronously along direction D2 (i.e., counterclockwise when viewed from the angle of view of the drawing), thereby actuating the first connecting element 5045 to move along direction D2 and further actuating the second connecting element 5046 to move along direction D1 to achieve the purpose of anastomosis of the blood vessel 80. Because the fourth holding element 5041 needs to move back and forth frequently, the first gear 5042 rotates when the fourth holding element 5041 moves along direction D2 (i.e., when the fourth holding element 5041 is operated), and the first gear 5042 does not drive the fourth gear when the fourth holding element 5041 moves along direction D1 (i.e., when the fourth holding element 5041 is released). Furthermore, because the first locking element 50471 meshes with the second gear 5043 and the fourth gear 5051 meshes with the second locking element 5052, unless the release assembly 60 is operated, the fourth gear 5051, the second gear 5043, and the third gear 5044 are rotatable in only one direction, whereby the fourth retaining element 5041 is actuated back and forth multiple times to gradually visually interlock the two vascular anastomosis rings 104 to complete the anastomosis of the blood vessel 80 (shown in FIG. 17 ). Furthermore, when the fourth retaining element 5041 is pressed to its maximum extent, it releases the first coupling element 5045 from the first connecting member 3041. After the visually anastomotic blood vessel 80 is separated from the vascular anastomosis assembly 30 from above the recess 3023, the third button 4021 can be pressed to remove the vascular anastomosis assembly 30 (shown in FIG. 12 ).When the release assembly 60 is operated, the second button 601 is pressed to move the fifth fixed base 50474 upward, and the adjustment element 50472 is moved upward, thereby loosening the first locking element 50471 and disengaging it from the second gear 5043, returning the first gear 5042, the second gear 5043, and the third gear 5044 to a state in which the fourth retaining element 5041 is not operated, and releasing and resetting the second retaining element 5021, the third retaining element 5031, and the fourth retaining element 5041. As a result, the first connecting element 5045 and the second connecting element 5046, which are connected to the seventh elastic element 5048 and the eighth elastic element 5049, respectively, are returned to a state in which the fourth retaining element 5041 is not operated, thereby allowing a new vascular anastomosis assembly 30 to be connected to successively anastomose another blood vessel.

[0066] In view of the above, by using the vascular anastomosis device of the present invention, it is possible to improve the fixation effect of vascular anastomosis, shorten the surgical time, increase convenience, or perform vascular connection through a simple process, thereby reducing the burden on surgeons or reducing the risk of further surgery.

[0067] The above embodiments are examples for convenience of explanation only. The scope of the present disclosure is claimed hereinafter and is not limited to the embodiments.

Claims

1. 1. A vascular anastomosis device, comprising: a vascular jaw unit provided with a vascular anastomosis ring; a first vascular fixation component, the vascular anastomosis ring being sleeved onto the first vascular fixation component, the first vascular fixation component comprising: a first tube having a first end and a second end opposite the first end, the first tube having a first opening and a first guide rail; a blood vessel positioning member to which the first end of the first tube is connected; a second tube housed in the first tube; a vascular support unit assembled on the second tube and positioned adjacent a third end of the vascular positioning member, the third end being opposite the first end of the first tube, the vascular support unit including a vascular support body and a vasodilator member, the vasodilator member assembled on the vascular support body; an advancement member housed in the first tube, the advancement member positioned adjacent the second end of the first tube; a third tube accommodated in the advancing member and provided with a cross rod and a guide rod, the cross rod being positioned corresponding to the first opening of the first tube, and the guide rod being positioned corresponding to the first guide rail; A vascular anastomosis device comprising:

2. 2. The vascular anastomosis device of claim 1, wherein the vascular positioning member has a first protrusion at the third end, and the vasodilator member has a first recessed hole, the first recessed hole being positioned to correspond to the first protrusion.

3. 2. The vascular anastomosis device according to claim 1, wherein the vascular jaw unit includes a first portion and a second portion pivotally connected to the first portion via a pivot member, the vascular anastomosis ring being disposed on the first portion and another vascular anastomosis ring being disposed on the second portion.

4. The vascular anastomosis device according to claim 3 , further comprising another first vascular fixation component, the other vascular anastomosis ring being sleeved onto the other first vascular fixation component.

5. 2. The vascular anastomosis device according to claim 1, wherein the first vascular fixation component further includes a fourth tube having a first through-hole, and the transverse rod is assembled within the first through-hole of the fourth tube and protrudes from the first opening of the first tube.

6. The vascular anastomosis device according to claim 1 , further comprising a housing in which the vascular jaw unit and the first vascular fixation component are housed.

7. The vascular anastomosis device according to claim 6 , wherein the housing is provided with a second guide rail disposed corresponding to the transverse rod.

8. The vascular anastomosis device according to claim 6, wherein the housing is provided with a third guide rail, the first tube is provided with a first protrusion, and the third guide rail is positioned to correspond to the first protrusion.

9. The vascular anastomosis device according to claim 8 , further comprising a base accommodated in the housing and provided with a clamping positioning unit, the vascular jaw unit being disposed corresponding to the clamping positioning unit.

10. 10. The vascular anastomosis device of claim 9, wherein the vascular jaw unit includes a first portion and a second portion pivotally connected to the first portion via a pivot member, and the clamping positioning unit includes a recess, and when the first portion and the second portion are clamped, the first portion and the second portion are received in the recess.

11. The vascular anastomosis device according to claim 9 , further comprising a first actuation member disposed on the base, the vascular jaw unit being pivoted relative to the first actuation member.

12. The vascular anastomosis device according to claim 11 , wherein the first actuation member is provided with a third protrusion disposed corresponding to the first protruding portion of the base.

13. The vascular anastomosis device according to claim 1 , further comprising a second actuation member mounted within a sliding slot of the advancement member.

14. 2. The vascular anastomosis device of claim 1, further comprising a third actuation member having a second protrusion disposed corresponding to a sliding member, the sliding member being pivoted by a rotating element, the rotating element being disposed corresponding to a fourth ridge on the advancement member.

15. The vascular anastomosis device according to claim 6 , further comprising a device body, wherein the housing includes a first fixing member and is assembled within the device body via the first fixing member.

16. The vascular anastomosis device according to claim 15, further comprising a fifth tube housed in the device body, the fifth tube being provided with an engagement member.

17. The vascular anastomosis device according to claim 16, further comprising a displacement control member housed in the device body, the displacement control member being disposed in correspondence with the engaging member.

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