Blood vessel anastomat

Abstract

The utility model relates to the field of medical instruments, and provides a blood vessel anastomat which comprises a first anastomosis wheel, a second anastomosis wheel and a forceps holder mechanism, a plurality of first inserting needles and first through holes are alternately arranged on the end face of the first anastomosis wheel, and a first butt joint hole is formed in the middle of the first anastomosis wheel; a plurality of second contact pins and second through holes are alternately arranged on the end face of the second anastomosis wheel, and a second butt joint hole is formed in the middle of the second anastomosis wheel; and the forceps clip mechanism is provided with two placing grooves. The anastomosis wheel is in butt joint and clamping through the inserting needle and the through hole, the anastomosis wheel is made of ultra-high molecular weight polyethylene, the inserting needle is made of surgical grade stainless steel, and demagnetization treatment is carried out, so that the situation of no displacement in 3.0 T nuclear magnetic examination can be achieved, and the effect of high use safety is achieved. Meanwhile, through the design of a needle inserting mode, the broken end of the blood vessel can be fixed conveniently, and after the two anastomosis wheels are in butt joint and clamped, operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a vascular anastomosis device. Background Art

[0002] The passive surgical instrument vascular stapler is a medical device used for vascular anastomosis surgery. Its main feature is that it can achieve accurate anastomosis of blood vessels during surgery, reduce operation time and trauma, and improve the success rate of surgery.

[0003] The use of vascular staplers can reduce surgical time and trauma and improve the success rate of surgery. It can accurately pass the anastomosis needle through the blood vessel wall, avoiding the inaccuracy and instability of traditional manual anastomosis. At the same time, vascular staplers can also reduce bleeding and tissue damage during surgery, alleviating patients' pain and recovery time.

[0004] During surgical treatment, it is difficult to avoid suturing blood vessels, and the suturing process of blood vessels is relatively time-consuming, which invisibly prolongs the time of the operation and increases the difficulty of the operation. In this way, the burden on doctors to treat patients is increased, and the difficult surgical process also increases the risk of the operation. Therefore, it is necessary to provide a vascular anastomosis device that is easy to operate and has a stable connection, forming an auxiliary device for quickly connecting and suturing blood vessels to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a vascular anastomosis device, aiming to improve the problem that the vascular butt suturing is time-consuming and labor-intensive during the operation.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a vascular anastomosis device, comprising:

[0007] A first anastomotic wheel, on the end surface of which a plurality of first insertion pins and first through holes are alternately arranged, and a first docking hole for a blood vessel to pass through is arranged in the middle of the first anastomotic wheel;

[0008] A second mating wheel, the end surface of which is alternately provided with a plurality of second pins and second through holes, and a second mating hole opposite to the first mating hole is provided in the middle of the second mating wheel;

[0009] The second plug pin is aligned with the first through hole and plugged into it, and the first plug pin is aligned with the second through hole and plugged into it; and

[0010] The clamping mechanism has two placement grooves arranged opposite to each other on its splicing end, and the first anastomotic wheel or the second anastomotic wheel is engaged with or separated from the placement grooves.

[0011] Preferably, at least one first clamping plane is provided on the side surface of the first anastomosis wheel, and at least one second clamping plane is provided on the side surface of the second anastomosis wheel.

[0012] Preferably, the clamping mechanism includes a rod frame, a sleeve shaft provided on the rod frame, a first clamping plate provided on the inner rod of the sleeve shaft, and a second clamping plate provided on the sleeve of the sleeve shaft, and the inner rod is rotatably arranged relative to the sleeve;

[0013] One of the placement grooves is provided on the first clamping plate, and the other placement groove is provided on the second clamping plate.

[0014] Preferably, one end of the inner rod extends out of the sleeve to form an extension part, the first clamping plate is provided on the extension part, and an avoidance hole for the extension part to penetrate through is provided on the second clamping plate;

[0015] A torsion spring is provided on the extension part, and one end of the torsion spring abuts against the first clamping plate, and the other end of the torsion spring abuts against the second clamping plate.

[0016] Preferably, a first slot communicating with the placement groove is provided on the first clamping plate, a second slot communicating with the placement groove is provided on the second clamping plate, the first slot and the second slot are combined to form a jack, and a thimble opposite to the jack is provided on the rod frame;

[0017] A sliding hole for axial sliding of the sleeve is provided on the rod frame, and a stop plane is provided between the sleeve and the sliding hole.

[0018] Preferably, two partition plates are symmetrically provided on the rod frame at the position of the thimble, an inclined surface is provided at the front end of the partition plate, and an avoidance notch for avoiding the first clamping plate or the second clamping plate is formed between the partition plate and the thimble.

[0019] Preferably, a first mark is provided on the sleeve.

[0020] Preferably, the placement groove is open on the side away from the rod frame, and a positioning groove is provided on the inner side wall of the placement groove.

[0021] Preferably, second marks which are symmetrically combined are provided on the outer side surface of the combined end of the first clamping plate and the second clamping plate.

[0022] Preferably, a rotating handle is provided on the other end of the inner rod of the sleeve shaft.

[0023] After adopting the above technical solution, compared with the background technology, the utility model has the following advantages:

[0024] 1. The anastomosis wheel is docked and clamped by means of inserting pins and through holes. The anastomosis wheel is made of ultra-high molecular weight polyethylene, while the inserting pins are made of surgical-grade stainless steel and are demagnetized, so that there is no displacement during 3.0T nuclear magnetic resonance examination, achieving a high safety level in use. At the same time, through the design of inserting pins, it is convenient to fix the broken end of the blood vessel. After the two anastomosis wheels are docked and clamped, the operation is simple and convenient.

[0025] 2. In order to facilitate the docking and clamping of the first anastomosis wheel and the second anastomosis wheel, they can be placed in position through a special clamping mechanism. After the clamping mechanism is aligned, the docking and clamping can be accurate and fast, reducing the difficulty of docking. At the same time, it is also convenient to place the severed blood vessel on the anastomosis wheel, improving the convenience of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a partial schematic view of the blood vessel anastomosis device of the present invention in a state where the anastomosis wheel is not placed;

[0027] Figure 2 FIG. is a partial schematic view of the blood vessel anastomosis device of the present invention in a state where the anastomosis wheel is placed;

[0028] Figure 3 FIG. is a partial view of the blood vessel anastomosis device of the present invention;

[0029] Figure 4 FIG. is a schematic structural view of the first splint and the second splint of the blood vessel anastomosis device of the present invention in a closed state;

[0030] Figure 5 FIG. is a schematic structural view of the first anastomosis wheel of the blood vessel anastomosis device of the present invention;

[0031] Figure 6 FIG. is a sectional view of the blood vessel anastomosis device of the present invention in a state where the anastomosis wheel is placed.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS:

[0033] 10. First anastomosis wheel; 101. First inserting pin; 102. First through hole; 103. First docking hole; 104. First clamping plane;

[0034] 20. Second anastomosis wheel; 201. Second inserting pin; 202. Second through hole; 203. Second docking hole;

[0035] 30. Clamping mechanism; 301. Placing groove; 302. Rod frame; 303. Sleeve shaft; 304. First splint; 305. Second splint; 306. Torsion spring; 307. Second identifier; 308. Rotating handle;

[0036] 3011. Opening; 3012. Positioning groove;

[0037] 3021. Thimble; 3022. Sliding hole; 3023. Partition board; 3024. Inclined surface; 3025. Avoidance notch

[0038] 3041. First slot; 3051. Second slot

[0039] 3031. Inner rod; 3032. Sleeve; 3033. Extension part Detailed implementation mode

[0040] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model

[0041] In addition, it should be noted that: the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation. Therefore, it should not be construed as a limitation of the present utility model

[0042] When an element is referred to as "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element

[0043] Unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances

[0044] Embodiment

[0045] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, this embodiment provides a vascular anastomosis device, which includes a first anastomosis wheel 10, a second anastomosis wheel 20 and a clamping mechanism 30. On the end face of the first anastomosis wheel 10, a plurality of first pins 101 and first through holes 102 are alternately arranged. In the middle of the first anastomosis wheel 10, there is a first docking hole 103 for a blood vessel to pass through. On the end face of the second anastomosis wheel 20, a plurality of second pins 201 and second through holes 202 are alternately arranged. In the middle of the second anastomosis wheel 20, there is a second docking hole 203 arranged opposite to the first docking hole 103. The second pins 201 are inserted and engaged with the first through holes 102 in a paired manner, and the first pins 101 are inserted and engaged with the second through holes 202 in a paired manner. On the combined end of the clamping mechanism 30, two placement grooves 301 are oppositely arranged, and the first anastomosis wheel 10 or the second anastomosis wheel 20 is engaged or separated from the placement grooves 301.

[0046] Specifically, the first anastomosis wheel 10 and the second anastomosis wheel 20 are engaged by the docking of pins and through holes, and the principle of the structural design is the same. In order to achieve insertion and engagement, a misalignment design is adopted (the pins and through holes are offset by one position so as to be docked with the other anastomosis wheel). Therefore, both the first anastomosis wheel 10 and the second anastomosis wheel 20 are anastomosis wheels made of ultra-high molecular weight polyethylene, and the pins are made of surgical-grade stainless steel and are demagnetized, so that there is no displacement during 3.0T nuclear magnetic resonance examination, achieving the effect of high use safety.

[0047] During use, the first anastomosis wheel 10 and the second anastomosis wheel 20 are respectively placed on the two placement grooves 301 of the clamping mechanism 30, so that the first anastomosis wheel 10 and the second anastomosis wheel 20 are placed opposite to each other. One end of the severed blood vessel is passed through the first docking hole 103, and the severed end is fixed on the pins to prevent the blood vessel from detaching. Similarly, the other end of the severed blood vessel is passed through the second docking hole 203 and fixed on the pins of the second anastomosis wheel 20. At this time, the clamping mechanism 30 is combined to complete the insertion and engagement of the first anastomosis wheel 10 and the second anastomosis wheel 20 and complete the docking of the blood vessels. Furthermore, the first anastomosis wheel 10 and the second anastomosis wheel 20 are removed from the clamping mechanism 30 to achieve the purpose of docking the blood vessels.

[0048] As Figure 5 shown in the figure, in this embodiment, at least one first clamping plane 104 is arranged on the side surface of the first anastomosis wheel 10, and at least one second clamping plane (which can be understood by referring to the first clamping plane 104) is arranged on the side surface of the second anastomosis wheel 20. For example, if the clamping planes are designed to be two symmetrical ones, the outer contour of the anastomosis wheel is in the shape of a runway. The two clamping planes are convenient for stable placement in the placement grooves 301 and will not rotate, so as to accurately achieve the effect of paired insertion and engagement, improving the convenience and practicality of operation.

[0049] Further, an oval convex head can be designed at the end of the pin. In this way, after the first anastomosis wheel 10 and the second anastomosis wheel 20 are inserted and joined together, a "click" sound will be emitted, so that the doctor can judge whether the first anastomosis wheel 10 and the second anastomosis wheel 20 are successfully docked through the sound, improving the practicability.

[0050] In this embodiment, the clamping mechanism 30 can be a scissor-type clip structure or a hinge-type mating clip, and realizes mating and separation by relative rotation, etc. For details, refer to the clamping mechanism 30 in the following text.

[0051] Such as Figure 1 、 Figure 2 and Figure 3 As shown, in this embodiment, the clamping mechanism 30 includes a rod frame 302, a sleeve shaft 303 arranged on the rod frame 302, a first clamping plate 304 arranged on the inner rod 3031 of the sleeve shaft 303, and a second clamping plate 305 arranged on the sleeve 3032 of the sleeve shaft 303. The inner rod 3031 is rotatably arranged relative to the sleeve 3032; a placement groove 301 is arranged on the first clamping plate 304, and another placement groove 301 is arranged on the second clamping plate 305.

[0052] Specifically, when the inner rod 3031 is rotated, the first clamping plate 304 can move and merge towards the direction of the second clamping plate 305 (the second clamping plate 305 is fixed on the sleeve 3032 and does not rotate), and the anastomosis wheels on the two placement grooves 301 are inserted and connected. Similarly, reverse rotation results in separation, and the anastomosis wheels can be re-placed for use, achieving the effect of reusing the clamping mechanism 30.

[0053] Further, as Figure 3 shown, in this embodiment, one end of the inner rod 3031 extends out of the sleeve 3032 to form an extension 3033. The first clamping plate 304 is arranged on the extension 3033, and an avoidance hole for the extension 3033 to penetrate is arranged on the second clamping plate 305; a torsion spring 306 is arranged on the extension 3033, and one end of the torsion spring 306 abuts against the first clamping plate 304, and the other end of the torsion spring 306 abuts against the second clamping plate 305.

[0054] Specifically, the design of the torsion spring 306 enables an elastic force to exist between the two clamping plates, so that a buffering force can be provided, that is, the anastomosis wheels can be docked and inserted relatively stably. If there is no torsion spring 306, an impact-type docking is likely to occur, which is likely to damage the pins or blood vessels. The stability and safety of the operation are improved.

[0055] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, in this embodiment, a first slot 3041 communicating with the placement groove 301 is provided on the first clamping plate 304, and a second slot 3051 communicating with the placement groove 301 is provided on the second clamping plate 305. The first slot 3041 and the second slot 3051 are combined to form a jack, and a thimble 3021 opposite to the jack is provided on the rod holder 302; a sliding hole 3022 for axially sliding with the sleeve 3032 is provided on the rod holder 302, and a stop plane is provided between the sleeve 3032 and the sliding hole 3022.

[0056] Specifically, after the first slot 3041 and the second slot 3051 are aligned, a jack is formed. In this way, through the thimble 3021, the anastomosis wheel can be easily ejected from the clamping mechanism 30. That is, by pulling the sleeve 3032 to move towards the thimble 3021, the thimble 3021 is inserted into the jack, and the first anastomosis wheel 10 and the second anastomosis wheel 20 inserted together are pushed out of the placement groove 301, and the operation is simple and convenient. At the same time, there is a stop plane outside the sleeve 3032, so that the sleeve 3032 can be placed to rotate in the same sliding hole 3022; and when the inner rod 3031 is rotated, the sleeve 3032 will not rotate along with it, improving the stability of the structure in use.

[0057] As Figure 1 and Figure 2 As shown in the figure, in this embodiment, two partition plates 3023 are symmetrically arranged on the rod holder 302 at the position of the thimble 3021. An inclined surface 3024 is provided at the front end of the partition plate 3023, and an avoidance notch 3025 for avoiding the first clamping plate 304 or the second clamping plate 305 is formed between the partition plate 3023 and the thimble 3021. The design of the partition plate 3023 can place the broken blood vessel through the inclined surface 3024 so as to search for or clamp the blood vessel, providing a certain supporting effect. The design of the avoidance notch 3025 is for avoiding the clamping plate when the anastomosis wheel is ejected by the thimble 3021, improving the rationality of the structure design.

[0058] Furthermore, in this embodiment, a first identifier (not shown in the figure) is provided on the sleeve 3032. The first identifier can be an identifier such as color, pattern or text. For example, for a color identifier, different color identifiers can be used to distinguish the model sizes of the clamping mechanism 30. That is, the placement groove 301 on the clamping mechanism 30 can be adapted to different sizes of anastomosis wheels to be used for different sizes of blood vessels. In this way, it can be quickly identified and used by color to prevent the problem of repeated operations, improving the speed and convenience of the operation.

[0059] Furthermore, as Figure 1As shown, in this embodiment, an opening 3011 is provided on one side of the placement groove 301 away from the rod holder 302, and a positioning groove 3012 is provided on the inner side wall of the placement groove 301. The provision of the opening 3011 allows the mated anastomosis wheels to be taken out from the side of the opening 3011. For example, the anastomosis wheels in the placement groove 301 can be ejected by a thimble 3021, achieving the separation effect between the clamping mechanism 30 and the anastomosis wheels. Furthermore, the design of the positioning groove 3012 facilitates the positioning of the anastomosis wheels in the placement groove 301. That is, through the design of the positioning groove 3012, it has a limiting effect, while improving the stability of the placement of the anastomosis wheels, avoiding the deviation and movement of the anastomosis wheels during the puncture of blood vessels, and improving the practicality.

[0060] As Figure 4 shown, on the outer side surface of the mating ends of the first clamping plate 304 and the second clamping plate 305 in this embodiment, symmetrically mated second identifiers 307 are provided. The second identifiers 307 can be identifiers in the form of text or patterns. Moreover, half of the second identifier 307 is designed on the end surface of the first clamping plate 304, while the other half of the second identifier 307 is designed on the end surface of the second clamping plate 305. When the first clamping plate 304 and the second clamping plate 305 are mated, it can be identified through the second identifier 307 whether the alignment is completed, avoiding the deviation during the insertion of the needle into the through hole and affecting the docking and fixation of blood vessels. For example, the first identifier can be an arrow pattern, and is symmetrically provided on the first clamping plate 304 and the second clamping plate 305. After the mating is completed, they are combined into a complete arrow, thus judging the accurate docking of blood vessels, having an auxiliary judgment effect, and improving the convenience of use.

[0061] As Figure 6 shown, on the other end of the inner rod 3031 of the sleeve shaft 303 in this embodiment, a rotating handle 308 is provided. The design of the handle can provide good friction, facilitating grasping or holding to rotate the inner rod 3031, so as to mate the first clamping plate 304 and the second clamping plate 305, improving the convenience and practicality of use.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A vascular anastomosis device, characterized in that: include: A first anastomosis wheel, on the end surface of which a plurality of first insertion pins and first through holes are alternately arranged, and a first docking hole for a blood vessel to pass through is arranged in the middle of the first anastomosis wheel; A second mating wheel, the end surface of which is alternately provided with a plurality of second pins and second through holes, and a second mating hole opposite to the first mating hole is provided in the middle of the second mating wheel; The second plug pin is aligned with the first through hole and plugged into the first through hole, and the first plug pin is aligned with the second through hole and plugged into the second through hole; and The clamping mechanism has two placement grooves arranged opposite to each other on its splicing end, and the first anastomotic wheel or the second anastomotic wheel is engaged with or separated from the placement grooves.

2. The vascular anastomosis device according to claim 1, characterized in that: The side surface of the first mating wheel is provided with at least one first clamping plane, and the side surface of the second mating wheel is provided with at least one second clamping plane.

3. The vascular anastomosis device according to claim 1, characterized in that: The clamp mechanism comprises a rod frame, a sleeve shaft arranged on the rod frame, a first clamping plate arranged on an inner rod of the sleeve shaft, and a second clamping plate arranged on a sleeve of the sleeve shaft, wherein the inner rod is rotatably arranged relative to the sleeve; One of the placement grooves is arranged on the first clamping plate, and the other of the placement grooves is arranged on the second clamping plate.

4. The vascular anastomosis device according to claim 3, characterized in that: One end of the inner rod extends out of the sleeve to form a protruding portion, the first clamping plate is arranged on the protruding portion, and the second clamping plate is provided with an avoidance hole for the protruding portion to pass through; The protruding portion is provided with a torsion spring, and one end of the torsion spring abuts against the first clamping plate, and the other end of the torsion spring abuts against the second clamping plate.

5. The vascular anastomosis device according to claim 3, characterized in that: The first clamping plate is provided with a first slot connected to the placement slot, the second clamping plate is provided with a second slot connected to the placement slot, the first slot and the second slot are combined to form a plug hole, and the rod frame is provided with a pin corresponding to the plug hole; The rod frame is provided with a sliding hole for axial sliding with the sleeve, and a stopping plane is provided between the sleeve and the sliding hole.

6. The vascular anastomosis device according to claim 5, characterized in that: Two partition plates are symmetrically arranged on the rod frame at the ejector pin, and an inclined surface is arranged at the front end of the partition plate. An escape gap for escaping the first clamping plate or the second clamping plate is formed between the partition plate and the ejector pin.

7. The vascular anastomosis device according to claim 3 or 4, characterized in that: The sleeve is provided with a first mark.

8. The vascular anastomosis device according to claim 3, characterized in that: The placement groove is arranged away from a side opening of the rod frame, and a positioning groove is arranged on the inner side wall of the placement groove.

9. The vascular anastomosis device according to claim 3, characterized in that: A second mark that is symmetrically assembled is arranged on the outer side surfaces of the assembled ends of the first clamping plate and the second clamping plate.

10. The vascular anastomosis device according to claim 3, characterized in that: A rotating handle is arranged on the other end of the inner rod of the sleeve shaft.

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