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 ART

[0002] Vascular anastomosis technology represents a major advance in microsurgery, enables efficient joining of blood vessels, and plays an increasingly important role in fine repair and regeneration. At present, in addition to conventional manual suturing, other new vascular anastomosis techniques such as the routine method, adhesive method, anastomotic clip method or stapler method have also been greatly developed. The stapler method can be widely used for the repair and regeneration of tissues in the extremities, chest, oral cavity or maxillofacial region, and it has also been proven that patients can obtain better therapeutic effects thereby.

[0003] However, the conventional stapler method still relies on the manual use of vascular forceps to rotate and bend the vascular wall 90 degrees outward, and then fix the rotated vascular wall to staples in a specific order. However, this process depends on the skilled technique of the surgeon, and when the patient's blood vessels are sclerosed or fragile, this process becomes difficult to perform, and non-uniform force makes the blood vessels prone to damage. Furthermore, even when this process is completed, it cannot be guaranteed that the vascular wall is properly fixed. Therefore, the conventional method of manually operating the stapler has problems such as low fixing effect, blood leakage from needle holes, long time consumption or low alignment accuracy, and the conventional manual method requires that both ends of the vascular wall be separately treated first for subsequent vascular joining, which needs to be improved. Furthermore, due to manual fixation, the same fixing effect cannot be guaranteed every time the stapler is manually used, which may cause the fixed blood vessel to fall off in the patient's body and bring the risk of further surgery.

[0004] Accordingly, there is an urgent need to provide an improved vascular anastomosis device for reducing or alleviating the above problems. SUMMARY OF THE INVENTION

[0005] In view of the above, according to one aspect of the present invention, a vascular anastomosis device is provided that improves the fixation effect of the vascular anastomosis device, shortens the surgical time, reduces the alignment time, improves the convenience of use, and enables vascular joining through a simple process. Therefore, the vascular anastomosis device can perform its function to the fullest extent in order to reduce the burden on the surgeon or reduce the risk of further surgery.

[0006] Accordingly, the vascular anastomosis device of the present invention includes a vascular jaw unit and a first vascular fixation component. The vascular jaw unit is provided with a vascular anastomosis ring, which is sleeved to the first vascular fixation component, so that when the vascular anastomosis device is operated, the blood vessel can be expanded outward at a predetermined angle (e.g., 90 degrees) to be subsequently fixed to the vascular anastomosis ring.

[0007] Furthermore, the first vascular fixation component includes a first tube, a vascular positioning member, a second tube, a vascular support unit, an advancing 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. On the other hand, the vascular positioning member may be provided with a first protrusion at the third end opposite the first end. The vascular dilation member for vascular use may be provided with a first concave 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 outside the first concave hole, so that the vascular positioning member can be expanded outward to smoothly sleeve the vascular vessel. Subsequently, when the first protrusion moves inside the first concave hole, the vascular vessel is attached to and tightened by the vascular support unit.

[0008] Next, the second tube is housed within the first tube. The vascular support unit is mounted on 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 vascular dilation member, the vascular dilation member being mounted on the vascular support body. By moving the second tube, the vascular dilation member is pivotally rotated by a predetermined angle (e.g., 90 degrees) to dilate the vessel attached to the vascular support unit outward, while simultaneously fixing the vessel to the vascular anastomosis ring.

[0009] Furthermore, a forward member is housed in the first tube, and the forward member is positioned adjacent to the second end of the first tube. Because the forward member is engaged within the first tube, when the forward member moves backward, the vessel positioning member expands outward to sleeve onto the vessel. A third tube is housed in the forward member, and the third tube is provided with a transverse rod and a guide rod, the transverse rod being positioned corresponding to the first opening of the first tube to allow the transverse rod to move within the range of the first opening of the first tube, and the guide rod being positioned corresponding to the first guide rail, thereby allowing the guide rod to move along the first guide rail.

[0010] In the vascular anastomosis device of the present invention, the vascular jaw unit comprises a first portion and a second portion, the first and second portions being pivotally connected via a pivot member. A vascular anastomosis ring may be positioned on the first portion and another vascular anastomosis ring on the second portion, but the present invention is not limited thereto. Furthermore, the present invention may further include another first vascular fixation component, the other vascular anastomosis ring may be sleeved to the other first vascular fixation component, but the present invention is not limited thereto. After both ends of a blood vessel are fixed to the vascular anastomosis rings of the first and second portions, respectively, the pivot member can be pivotally rotated so that the first and second portions can face each other, thereby enabling the two ends of the blood vessel to be anastomosed. On the other hand, 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, the fourth tube may be provided with a first through-hole, and a transverse rod may be assembled into the first through-hole of the fourth tube and protrude from the opening of the first tube so as the third tube moves and rotates along the first through-hole of the fourth 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 positioned corresponding to a transverse 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 positioned on the first tube, and the third guide rail may be positioned 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 can be housed in a housing which may be provided with a clamping positioning unit, and the vascular jaw unit may be positioned corresponding to the clamping positioning unit, but the present invention is not limited thereto. Furthermore, the vascular jaw unit may include a first part and a second part which can be pivotally connected via a pivoting member. The clamping positioning unit may include a recess which can be housed when the first part and the second part are clamped together. When the vascular jaw unit is forced to move, the vascular jaw unit comes into contact with the clamping positioning unit so that the pivoting member begins to pivot and rotate, thereby completing the vascular anastomosis by clamping the first part and the second part toward each other. However, the present invention is not limited thereto.

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

[0015] In the vascular anastomosis device of the present invention, the first actuating member is provided with a third protrusion, which may be positioned corresponding to a first projection of the base, but the present invention is not limited thereto. When the third protrusion engages with the first projection, the first actuating member may be actuated to move forward simultaneously with the base when the base moves forward. However, the first actuating member may only move forward relative to the base and not 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 a sliding slot of an advancing member, and which may be provided with a first connecting member, the first connecting member may be connected to a first coupling element, but the present invention is not limited thereto. When the first coupling element moves, the second actuating member is actuated and moves, and the sliding slot provides the second actuating member with appropriate space for movement.

[0017] The vascular anastomosis device of the present invention may further include a third actuating member, which is further provided with a second protrusion. The second protrusion may be positioned in correspondence with a sliding member, the sliding member may be pivoted by a rotating element, the rotating element may be positioned adjacent to a first fixed member of the housing, the rotating element may be positioned in correspondence with a second ridge of the housing, or the rotating element may be positioned in correspondence with a fourth ridge of the forward member, but the present invention is not limited thereto. Furthermore, the present invention may further include a device body, the housing may include a first fixed member, and may be assembled into the device body via the first fixed member, but the present invention is not limited thereto. When the rotating element rotates due to contact with the second ridge of the housing, the rotating element engages with a fourth ridge, thereby allowing the rotating element to be operably connected to the forward 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 engaging 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 positioned in correspondence with the engaging member, but the present invention is not limited thereto. When the engaging member comes into contact with the displacement control member, the engaging member begins to rotate, releasing the tenon of the engaging member, thereby allowing the forward member and the fifth tube to move relative to each other.

[0019] Other issues, advantages, and novel features of this disclosure will become even clearer from the following detailed description when interpreted in conjunction with the accompanying drawings. [Brief explanation of the drawing]

[0020] [Figure 1] This is a schematic diagram showing the operating mechanism of a vascular jaw unit and a part of the first vascular fixation component according to an embodiment of the present invention. [Figure 2]This is a schematic diagram showing the actuation mechanism of the vascular jaw unit and part of the first vascular fixation component according to an embodiment of the present invention. [Figure 3] This is a schematic diagram showing the actuation mechanism of the vascular jaw unit and part of the first vascular fixation component according to an embodiment of the present invention. [Figure 4] This is a schematic diagram showing the actuation mechanism of the vascular jaw unit and part of the first vascular fixation component according to an embodiment of the present invention. [Figure 5] This is a schematic diagram showing the actuation mechanism of the vascular jaw unit and part of the first vascular fixation component according to an embodiment of the present invention. [Figure 6] This is a schematic diagram showing the actuation mechanism of the vascular jaw unit and part of the first vascular fixation component according to an embodiment of the present invention. [Figure 7] This is an exploded view of the first vascular fixation component according to an embodiment of the present invention. [Figure 8] This is a schematic diagram showing the actuation mechanism of the first vascular fixation component according to an embodiment of the present invention. [Figure 9] This is a schematic diagram showing the actuation mechanism of the first vascular fixation component according to an embodiment of the present invention. [Figure 10] This is a schematic diagram showing the actuation mechanism of the first vascular fixation component according to an embodiment of the present invention. [Figure 11] This is a schematic diagram showing the actuation mechanism of the first vascular fixation component according to an embodiment of the present invention. [Figure 12] This is an exploded view of the first vascular anastomosis assembly according to an embodiment of the present invention. [Figure 13] This is a schematic diagram showing the actuation mechanism of the vascular anastomosis assembly according to an embodiment of the present invention. [Figure 14] This is a schematic diagram showing the actuation mechanism of the vascular anastomosis assembly according to an embodiment of the present invention. [Figure 15] This is a schematic diagram showing the actuation mechanism of the vascular anastomosis assembly according to an embodiment of the present invention. [Figure 16] This is a schematic diagram showing the actuation mechanism of the vascular anastomosis assembly according to an embodiment of the present invention. [Figure 17] This is a schematic diagram showing the operating mechanism of a vascular anastomosis assembly according to an embodiment of the present invention. [Figure 18] This is a perspective view of a vascular anastomosis device according to an embodiment of the present invention. [Figure 19] This is a perspective view of the first operating unit according to an embodiment of the present invention. [Figure 20] This is a perspective view of a second operating unit according to an embodiment of the present invention. [Figure 21] This is a perspective view of a third operating unit according to an embodiment of the present invention. [Figure 22] This is a perspective view of a fourth operating unit according to an embodiment of the present invention. [Modes for carrying out the invention]

[0021] Various embodiments of the present invention are provided below. These embodiments are provided to illustrate the technical content of the present invention, but are not intended to limit the scope of the claims. Features of one embodiment may be applied to other embodiments by appropriate modifications, substitutions, combinations or separations.

[0022] In this text, unless otherwise specified, it should be noted that having a component preceded by the article "a" is not limited to having a single component, but may have one or more components.

[0023] Furthermore, unless otherwise specified, ordinal numbers such as "1st" and "2nd" are used solely to distinguish multiple components with the same name and do not imply any order, hierarchy, execution order, or processing order between them. Component "1st" and component "2nd" may appear together in the same component or separately in different components. The presence of a higher-ordinal component does not necessarily imply the presence of other components with lower ordinal numbers.

[0024] Furthermore, in this text, terms such as “above,” “below,” “left,” “right,” “front,” “back,” and “between” are used solely to describe the relative positions between multiple components and may be extended in interpretation to include translation, rotation, or mirroring.

[0025] Furthermore, unless otherwise specified in the text, phrases such as "one element is on another element" do not necessarily mean that the element in question is in contact with the other element.

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

[0027] Furthermore, unless otherwise specified in the text, the expression "suitable for" or "applicable to" a particular component means that the other component is not part of the subject matter of the application, but is an illustrative basis or reference that helps to conceive of the nature or application of that component. Similarly, unless otherwise specified in the text, the expression "suitable for" or "applicable to" a particular configuration or operation describes the characteristics of the component, and does not mean that the configuration has been set up or the operation has been performed.

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

[0029] As shown in Figures 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 connecting member 203, a first protrusion 204, a second tube 205, a vascular support unit 207, a fourth tube 208, an advancing member 209, and a third tube 210. The first tube 201 is connected to the vascular positioning member 202 via the first connecting member 203. In other words, the first connecting member 203 is positioned 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 the first end 201a, and the first tube 201 is provided with a first opening 2011 and a first guide rail 2012. The blood vessel positioning member 202 has 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. On the other hand, the first raised portion 204 is positioned on the first tube 201 and corresponds to the third guide rail 3014 of the housing 301 (shown in Figure 12).

[0030] Furthermore, the second tube 205 is housed in the first tube 201. The vascular support unit 207 is sleeved to 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 vascular dilation member 2072. The vascular dilation member 2072 is assembled on the vascular support body 2071 and is provided with a first concave hole 2073, a second concave hole 2074, and a rotating shaft 2075, the first concave hole 2073 being positioned corresponding to the first convex portion 2021. In this embodiment, the vascular support unit 207 is housed in the vascular positioning member 202 and the first joining member 203 and is sleeved to the outside of the second tube 205.

[0031] Furthermore, the forward member 209 is housed in the first tube 201 and sleeved to the outside of the second tube 205, and the forward member 209 is positioned adjacent to the second end 201b of the first tube 201. In this embodiment, the forward member 209 includes a forward forward portion 2091 and a rearward forward portion 2092, and a sliding slot 2093 is provided on the rearward forward portion 2092. On the other hand, the third tube 210 is housed in the forward forward portion 2091 of the forward member 209, and the third tube 210 is provided with a guide rod 2101 and a transverse rod 2051, and the fourth tube 208 is sleeved to the outside of the third tube 210, with the guide rod 2101 positioned corresponding to the first guide rail 2012 of the first tube 201. In other words, the guide rod 2101 moves along the first guide rail 2012, and the transverse 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 the vascular anastomosis assembly 30 Figure 12 is an exploded view of a vascular anastomosis assembly 30 according to an embodiment of the present invention. Figure 13 is a perspective view of a vascular anastomosis assembly 30 according to an embodiment of the present invention.

[0033] As shown in Figures 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. Furthermore, the vascular jaw unit 10 is provided with a vascular anastomosis ring 104, which is sleeved to the first vascular fixation component 20. In this embodiment, the vascular anastomosis assembly 30 has two vascular anastomosis rings 104 and two first vascular fixation components 20. One vascular anastomosis ring 104 is positioned on the first portion 101 and sleeved to the first vascular fixation component 20, and the other vascular anastomosis ring 104 is positioned on the second portion 102 and sleeved to the other first vascular fixation component 20. Furthermore, the 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 actuation member 303 and the second actuation member 304 are housed in the housing 301, which includes an anterior housing portion 3011 and a rear housing portion 3012. Inside the housing 301 are two second guide rails 3013, two third guide rails 3014, two first fixation members 3015, two correspondingly positioned sliding members 3018 and two grooves 3019, and a single fifth protrusion 3017. The second guide rail 3013 is positioned corresponding to the lateral rod 2051 (as shown in Figure 7), and the third guide rail 3014 is positioned corresponding to the first protrusion 204 on the first tube 201 (as shown in Figure 7). Meanwhile, a fifth protrusion 3017 is provided to block the second operating member 304 so that it cannot move along direction D1. On the other hand, the base 302 is provided with a first protruding portion 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 positioned correspondingly. 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 positioned 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 pivoting member 103 of the vascular jaw unit 10. Furthermore, the first actuating member 303 is provided with a third protrusion 3031, which is positioned corresponding to the first protruding portion 3021 of the base 302. The second actuating member 304 is assembled in the sliding slot 2093 of the forward member 209 connected to the second tube 205 (as shown in Figure 7), and the second actuating member 304 is provided with a first connecting member 3041, which is connected to the first connecting element 5045.

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

[0037] As shown in Figure 18, the vascular anastomosis device 1 of this embodiment includes a vascular anastomosis assembly 30, a device body 40, an operating assembly 50, and a release assembly 60, the device body 40 housing the vascular anastomosis assembly 30, the operating assembly 50, and the release assembly 60. The structure of the vascular anastomosis assembly 30 is understandable from the above description. The device body 40 has two correspondingly positioned second openings 402 (only one second opening 402 is shown in Figure 18 for the sake of the field of view), and the second openings 402 are provided with a third button 4021 positioned corresponding to the first fixing member 3015 of the housing 301. The housing 301 is assembled to the second openings 402 of the device body 40 via the first fixing member 3015, thereby housing the vascular anastomosis assembly 30 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 activate the first fixing member 3015 and push out the second protrusion 3053 of the third operating member 305 (as shown in Figure 19).

[0038] As shown in Figures 18 and 19, the operating assembly 50 includes a first operating unit 501, a second operating unit 502, a third operating unit 503, and a fourth operating unit 504, the first operating unit 501 including two first buttons 5011, two first elastic elements 5012, two first connecting rods 5013, two second connecting rods 5014, and two third operating members 305. In this embodiment, the first buttons 5011 are positioned corresponding to a third opening 403 of the device body 40, so that a portion of the first buttons 5011 is housed in the device body 40. The first button 5011 is connected to the first elastic element 5012 via the 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. On the other hand, 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 fixing base 404 of the device body 40 via the fourth through hole 50143. In another embodiment of the present invention, two first buttons 5011 of the first operating unit 501 can be operated to sequentially tighten two blood vessels 80 (as shown in Figure 3). See also Figures 12, 14 and 18. In this embodiment, a second protrusion 3053 is provided at the front end of each third operating member 305. The second protrusion 3053 engages with a fourth opening 30151 on a sliding member 3018, the sliding member 3018 is pivoted by a rotating element 3051, the rotating elements 3051 are positioned adjacent to the first fixed member 3015 of the housing 301, the rotating elements 3051 correspond to the second protrusion 3016 of the housing 301, and the rotating elements 3051 correspond to the fourth protrusion 2094 of the forward member 209. See also Figures 12 and 14.The second protrusion 3053 engages with the fourth opening 30151 on the sliding member 3018, thereby pressing the third button 4021 and activating the first fixing member 3015. This causes the second protrusion 3053 to separate 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 Figure 12).

[0039] Furthermore, as shown in Figures 18 and 20, the second operating unit 502 includes a second retaining element 5021, a second elastic element 5022, a fifth fixing member 5023, two third elastic elements 5024, and a fourth operating member 5025. The second retaining element 5021 has a fifth through hole 50211, two sixth through holes 50212, two seventh through holes 50213, and two second protruding portions 50214. In this embodiment, both ends of the second elastic element 5022 are fixed to the fifth through hole 50211 and the second fixing base 405 of the device body 40, respectively. Meanwhile, the second retaining element 5021 is pivoted within the device body 40 with the fifth fixing member 5023 as a pivot axis, by the fifth fixing member 5023 passing through two correspondingly arranged sixth through holes 50212. The fourth actuating member 5025 has a first portion 5025a and a second portion 5025b, the first portion 5025a and the second portion 5025b being connected to two different third elastic elements 5024, respectively, and each of the first portion 5025a and the second portion 5025b is provided with a sixth fixing member 50251, which is assembled to a seventh through hole 50213 of the second retaining element 5021. Furthermore, when the second retaining element 5021 is pressed to its maximum extent, the two second protruding portions 50214 of the second retaining element 5021 can be fixed to a seventh fixing base 409 of the device body 40 and fixed to a fourth connecting rod 603 of the release member 60, respectively. In other embodiments of the present invention, the two second retaining elements 5021 of the second operating unit 502 may be integrated to form a single retaining element for improved ease of operation.

[0040] Furthermore, as shown in Figures 18 and 21, the third operating unit 503 includes a third retaining element 5031, a fourth elastic element 5032, a seventh fixing member 5033, two fifth elastic elements 5034, two fifth tubes 5035, two engaging members 5036, and two sixth elastic elements 5037. The third retaining 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 fixing base 406 of the device body 40, respectively. Furthermore, the third retaining element 5031 is pivoted within the device body 40 with the seventh fixing member 5033 as the pivot axis, by the seventh fixing member 5033 passing through two ninth through holes 50312 on the third retaining element 5031. Meanwhile, the fifth tube 5035 and the sixth elastic element 5037 are housed in the device body 40, with the fifth tube 5035 sleeved to 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 retaining element 5031 via a fourth opening 50314. Next, the engaging member 5036 has a tenon 50361, which is positioned on the fifth tube 5035, while the tenon 50361 is positioned corresponding to the displacement control member 401 of the device body 40. When the third retaining element 5031 is pressed to its maximum extent, the two third protrusions 50315 of the third retaining element 5031 can be fixed to the eighth fixing base 410 of the device body 40 and fixed to the fourth connecting rod 603 of the release assembly 60. In another embodiment of the present invention, the two third retaining elements 5031 of the third operating unit 503 may be integrated to form a single retaining element to improve ease of operation.

[0041] As shown in Figures 18 and 22, the fourth operating unit 504 includes a fourth retaining 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 locking assembly 5047, a seventh elastic element 5048, an eighth elastic element 5049, a ninth fixing member 5050, a fourth gear 5051, and a second locking element 5052. The fourth retaining 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 fixing base 407 of the device body 40, respectively. Meanwhile, the ninth fixing member 5050 passes through the eleventh through hole 50411 on the fourth retaining member 5041, causing the fourth retaining element 5041 to pivot within the device body 40 with the ninth fixing member 5050 as the pivot axis. Furthermore, the fourth retaining element 5041 is provided with a toothed structure 50413, which 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, and the second connecting element 5046 is connected to the first operating member 303 (as shown in Figure 12). 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 retaining element 5041 is pressed to its maximum extent, the first connecting element 5045 moves along direction D2, thereby allowing the first connecting member 3041 to contact the control unit 901, and enabling the first connecting element 5045 to be released from the first connecting member 3041 to facilitate subsequent operation (as shown in Figure 13). Meanwhile, the fourth gear 5051 is located inside the hollow first gear 5042 and meshes with two second locking elements 5052, respectively.

[0042] Next, as shown in Figures 18 and 22, the lock assembly 5047 includes a first locking element 50471, an adjustment element 50472, a ninth elastic element 50473, and a fifth fixed base 50474, wherein the first locking element 50471 engages with the second gear 5043, the adjustment element 50472 is connected to the ninth elastic element 50473 and abuts against the first locking 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 mounted on the third connecting rod 602 of the release assembly 60, the third connecting rod 602 is provided with a second button 601, and the third connecting rod 602 is connected to the fourth connecting rod 603. Furthermore, a tenth fixing member 604 is provided on the fourth connecting rod 603, and the tenth fixing member 604 is pivotally moved within the device body 40.

[0043] Operating mechanism of the vascular jaw unit 10 and the first vascular fixation component 20 Figures 1 to 6 are schematic diagrams showing the operating mechanism of a part of the vascular jaw unit 10 and the first vascular fixation component 20 (shown in Figure 7) according to an embodiment of the present invention.

[0044] As shown in Figure 1, when the vascular jaw unit 10 and the first vascular fixation component 20 (shown in Figure 7) are not in operation at this moment, the first protrusion 2021 of the vascular positioning member 202 is positioned inside the first concave hole 2073 of the vascular dilating member 2072, and the first portion 101 or the second portion 102 of the vascular jaw unit 10 is sleeved to the outside of the vascular positioning member 202.

[0045] As shown in Figure 2, at this moment, the vessel 80 is inserted into the vessel. 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 Figures 18 and 19), the vessel positioning member 202 moves along direction D2, and the first convex portion 2021 of the vessel positioning member 202 separates from the first concave hole 2073 of the vessel dilation member 2072, thereby slightly expanding the vessel positioning member 202 outward and forming a gap G between the third end 202a of the vessel positioning member 202 and the vessel support body 2071, so that the vessel 80 can be sleeved to the vessel support body 2071 and accommodated in the gap G.

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

[0047] As shown in Figure 4 and Figure 12, at this moment the vascular jaw unit 10 is in an activated state. By operating the second operating unit 502 (the operating mechanism of the second operating unit 502 will be described in detail later (as shown in Figure 18)), the vascular jaw unit 10 moves along direction D1 from the position where it is initially sleeved outside the vascular positioning member 202 (shown in Figure 3) to the position where it is sleeved outside the vascular vessel 80, in order to facilitate the subsequent process of fixing the vessel to the vascular anastomosis ring 104.

[0048] As shown in Figure 5, along with Figures 6-7, at this moment the blood vessel 80 is in an outwardly dilated state. By operating the third operating unit 503 (the operating mechanism of the third operating unit 503 will be described in detail later (as shown in Figure 18)), the vascular dilating member 2072, which is operably connected to the third tube 210, moves along direction D1. Since the vascular dilating member 2072 is mounted on the blood vessel support body 2071, the vascular dilating member 2072 expands outward after pivotal rotation, thereby allowing the blood vessel 80 attached to the vascular dilating member 2072 to expand outward. Furthermore, since the vascular dilating member 2072 and the blood vessel positioning member 202 move synchronously by a distance "a" along direction D1, the first convex portion 2021 remains engaged with the first concave hole 2073, tightly constricting the blood vessel 80.

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

[0050] Operating mechanism of the first vascular fixation component 20 Figures 8 to 11 are schematic diagrams showing the operating mechanism of the first vascular fixation component 20 (shown in Figure 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 the inactive state corresponding to Figure 1 (shown in Figure 7). The guide rod 2101 is assembled into the first guide rail 2012, and the transverse rod 2051 is assembled into the first through hole 2081 and protrudes from the first opening 2011, so that the guide rod 2101 and the transverse rod 2051 are positioned in the first position S1.

[0052] As shown in Figures 7-8 and Figure 9, at this moment the blood vessel 80 is sleeved, which corresponds to Figure 2. By operating the first operating unit 501 (shown in Figure 18), the forward member 209 moves along direction D2, and the first tube 201, which is operably connected to the forward member 209, moves synchronously along direction D2. Furthermore, since the third tube 210 and the fourth tube 208 can move relative to the first tube 201, the guide rod 2101 and the transverse rod 2051 move to the second position S2. On the other hand, as shown in Figures 9 and 19, since 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 transverse rod 2051 to the first position S1, thereby tightening the blood vessel positioning member 202 around the blood vessel 80, which corresponds to Figure 3. More specifically, by operating the first button 5011, the guide rod 2101 and the lateral rod 2051 can move back and forth between a first position S1 and a second position S2.

[0053] As shown in Figure 10, along with Figures 5 and 7, at this moment the vessel 80 is in a state of outward dilation, which corresponds to Figure 5. By operating the third operating unit 503 (shown in Figure 18), the third tube 210 moves along direction D1 and the transverse rod 2051 is rotated along the first through-hole 2081, thereby moving the guide rod 2101 and the transverse rod 2051 from position S1 to the third position S3. As the third tube 210 continues to move in direction D1, the transverse rod 2051 moves a distance "a" along direction D1 (as shown in Figure 6), and the guide rod 2101 engages with the first guide rail 2012 and synchronously biases the first tube 201 to move a distance "a" along direction D1 (as shown in Figure 6), thereby moving from the third position S3 to the fourth position S4.

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

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

[0056] As shown in Figure 13, at this moment the vascular anastomosis assembly 30 is in a non-operated state, which corresponds to Figures 1 and 8. The transverse rod 2051, assembled within the second guide rail 3013, is positioned in the first position, and the first connecting element 5045 is assembled onto the first connecting member 3041.

[0057] As shown in Figure 14 along with Figure 12, at this moment the blood vessel 80 is sleeved, which corresponds to Figures 2 and 9. By operating the first operating unit 501 (shown in Figure 18), the third operating member 305 moves along direction D2, and the rotating element 3051 on the sliding member 3018, which is buckled to the third operating member 305, comes into contact with the second protrusion 3016 on the housing 301 (shown in Figure 12). This causes the rotating element 3051 to pivotally rotate and engage with the fourth protrusion 2094, thereby acting together to move the third operating member 305 and the forward member 209 along direction D2, thus completing the process of sleeved the blood vessel 80.

[0058] As shown in Figure 15 along with Figure 12, at this moment the vascular jaw unit 10 is in an activated state, which corresponds to Figure 4. By operating the second operating unit 502 (shown in Figure 18), the fourth operating member 5025 moves along direction D1 to bias the base 302. Furthermore, since the first projection 3021 located on the base 302 is operably connected to the third protrusion 3031, the first operating member 303 also moves synchronously along direction D1, thereby moving and positioning the vascular jaw unit 10.

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

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

[0061] Operating mechanism of operating assembly 50 and release assembly 60 Figure 19 is a perspective view of the first operating unit 501 according to an embodiment of the present invention. Figure 20 is a perspective view of a second operating unit 502 according to an embodiment of the present invention. Figure 21 is a perspective view of a third operating unit 503 according to an embodiment of the present invention. Figure 22 is a perspective view of a fourth operating unit 504 according to an embodiment of the present invention.

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

[0063] As shown in Figure 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 operating member 5025 along direction D1, with the fifth fixing member 5023, assembled in the sixth through-hole 50212, as the pivot axis. The fourth operating member 5025 is connected to the base 302 (shown in Figure 15), thereby allowing the vascular anastomosis ring 104 to move along direction D1 for positioning (shown in Figure 4). In addition, in this embodiment, when the second retaining element 5021 is operated, the third retaining element 5031 synchronously moves gradually closer to the handle to facilitate subsequent operations (shown in Figure 21).

[0064] As shown in Figure 21, the third retaining element 5031 is operated to move along direction D2, and the eighth fixing member 2096 moves 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, which is assembled in the ninth through-hole 50312, as a pivot axis. The sixth tube 5038 is connected to the advancing member 209, which moves along direction D1 to fix the blood vessel 80 to the vascular anastomosis ring 104 (shown in Figure 5). Furthermore, when the third retaining element 5031 is operated, the forward member 209 continues to move along direction D1, causing the engaging member 5036 to contact the displacement control member 401, which inverts the engaging member 5036 and releases the tenon 50361. As a result, the fifth tube 5035 does not move with the forward member 209, thereby allowing the fourth retaining element 5041 to be continuously operated (as shown in Figure 22). On the other hand, when the vascular anastomosis assembly 30 is replaced (as shown in Figure 12), the sixth elastic element 5037 resets the third retaining element 5031 and returns the tenon 50361 to its original position. In addition, in this embodiment, while the third retaining element 5031 is operated, the fourth retaining element 5041 synchronously moves gradually closer to the handle to facilitate subsequent operations (as shown in Figure 22).

[0065] As shown in Figure 22, the fourth retaining element 5041 is operated to move along direction D2, rotating around the ninth fixing member 5050, which is assembled in the eleventh through-hole 50411, as a pivot axis, thereby causing the toothed structure 50413 on the fourth retaining element 5041 to mesh with the first gear 5042. The toothed structure 50413 moves along direction D1 (i.e., clockwise rotation when viewed from the angle of view in the drawing), causing 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 rotation when viewed from the angle of view in the drawing), thereby causing the first connecting element 5045 to move along direction D2 and the second connecting element 5046 to move along direction D1, in order to achieve the purpose of anastomosis of the blood vessel 80. Since the fourth retaining element 5041 needs to move back and forth frequently, the first gear 5042 rotates when the fourth retaining element 5041 moves along direction D2 (i.e., when the fourth retaining element 5041 is being manipulated), and the first gear 5042 does not drive the fourth gear when the fourth retaining element 5041 moves along direction D1 (i.e., when the fourth retaining element 5041 is being released). Furthermore, since the first locking element 50471 engages with the second gear 5043 and the fourth gear 5051 engages with the second locking element 5052, when the release assembly 60 is not operated, the fourth gear 5051, the second gear 5043, and the third gear 5044 are rotatable in only one direction, thereby causing the fourth retaining element 5041 to be actuated multiple times back and forth to complete the anastomosis of the vessel 80, visually and gradually combining the two vascular anastomosis rings 104 (shown in Figure 17). Furthermore, the fourth retaining element 5041, when pressed to its maximum extent, releases the first connecting element 5045 from the first connecting member 3041. After the visually anastomosed 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 Figure 12).When the release assembly 60 is operated, the second button 601 is pressed to move the fifth fixed base 50474 upward, causing the adjustment element 50472 to move 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 the state where 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 the state where the fourth retaining element 5041 is not operated, thereby allowing the new vascular anastomosis assembly 30 to be connected for continuous anastomosis of other vessels.

[0066] From the above perspective, by using the vascular anastomosis device of the present invention, it is possible to improve the fixation effect of vascular anastomosis, shorten the time of surgery, enhance convenience, or perform vascular junction through a simple process, thereby reducing the burden on surgeons or lowering the risk of further surgery.

[0067] The embodiments described above are illustrative for illustrative purposes only. The scope of this disclosure is claimed hereafter in the claims and is not limited to the embodiments.

Claims

1. A vascular anastomosis device, A vascular jaw unit equipped with a vascular anastomosis ring, A first vascular fixation component and a vascular anastomosis ring are sleeved to the first vascular fixation component, and the first vascular fixation component is A first tube having a first end and a second end opposite to 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, The second tube housed in the first tube, A vascular support unit assembled on the second tube and positioned adjacent to the third end of the vascular positioning member, wherein the third end is on the opposite side of the first end of the first tube, and the vascular support unit includes a vascular support body and a vascular dilation member, the vascular dilation member being assembled on the vascular support body, A forward member engaged with the first tube, positioned adjacent to the second end of the first tube, wherein when the forward member moves backward, the first tube is driven, the blood vessel positioning member expands outward to form a gap, thereby positioning the blood vessel around the blood vessel support body within the gap, and positioning the blood vessel positioning member around the blood vessel, A third tube housed in the forward member, provided with a transverse rod and a guide rod, wherein the transverse rod is arranged to be movable within the range of the first opening of the first tube, and the guide rod is arranged to be movable along the first guide rail, A fourth tube is sleeved to the outside of the third tube and has a first through hole, wherein the transverse rod is assembled into the first through hole of the fourth tube and protrudes from the first opening of the first tube, Includes, The vascular jaw unit is movable relative to the first vascular fixation component so that the blood vessel can be fixed to the vascular anastomosis ring, and is a vascular anastomosis device.

2. The vascular anastomosis device according to claim 1, wherein the vascular positioning member is provided with a first protrusion at the third end, and the vascular dilating member is provided with a first concave hole, the first concave hole being positioned in correspondence with the first protrusion.

3. The vascular jaw unit comprises a first portion and a second portion pivotally connected to the first portion via a pivoting member, wherein the vascular anastomosis ring is positioned in the first portion and the other vascular anastomosis ring is positioned in the second portion, as described in claim 1.

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

5. 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.

6. The vascular anastomosis device according to claim 5, wherein the housing is provided with a second guide rail arranged in correspondence with the transverse rod.

7. The vascular anastomosis device according to claim 5, wherein a third guide rail is provided in the housing, a first protrusion is provided in the first tube, and the third guide rail is positioned corresponding to the first protrusion.

8. The vascular anastomosis device according to claim 7, further comprising a base housed in the housing and provided with a clamping positioning unit, wherein the vascular jaw unit is positioned corresponding to the clamping positioning unit.

9. The vascular anastomosis device according to claim 8, 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, wherein when the first portion and the second portion are clamped, the first portion and the second portion are housed in the recess.

10. The vascular anastomosis device according to claim 8, further comprising a first operating member disposed on the base, wherein the vascular jaw unit is pivoted relative to the first operating member.

11. The vascular anastomosis device according to claim 10, wherein the first operating member is provided with a third raised portion arranged in correspondence with the first protruding portion of the base.

12. The vascular anastomosis device according to claim 1, further comprising a second operating member assembled in the sliding slot of the forward member.

13. The vascular anastomosis device according to claim 1, further comprising a third operating member having a second protrusion arranged in correspondence with a sliding member, wherein the sliding member is pivoted by a rotating element, and the rotating element is arranged in correspondence with a fourth protrusion of the forward member.

14. The vascular anastomosis device according to claim 5, 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.

15. The vascular anastomosis device according to claim 14, further comprising a fifth tube housed in the device body, wherein an engaging member is provided on the fifth tube.

16. The vascular anastomosis device according to claim 15, further comprising a displacement control member housed in the device body, wherein the displacement control member is arranged in correspondence with the engaging member.

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