CN109793580B - Vascular anastomosis fixing and supporting device and operation method thereof - Google Patents
Vascular anastomosis fixing and supporting device and operation method thereof Download PDFInfo
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- CN109793580B CN109793580B CN201910076429.1A CN201910076429A CN109793580B CN 109793580 B CN109793580 B CN 109793580B CN 201910076429 A CN201910076429 A CN 201910076429A CN 109793580 B CN109793580 B CN 109793580B
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Abstract
The application discloses a vascular anastomosis fixing and supporting device and an operation method thereof. The vascular anastomosis fixing and supporting device comprises a main body supporting part and a bending part which is formed by extending upwards along one end of the main body supporting part; the main body supporting part comprises an upper surface and a lower surface, the middle part of the upper surface of the main body supporting part extends upwards to form a convex supporting part, and the middle part of the top surface of the convex supporting part is recessed inwards to form a supporting cambered surface for being matched with a blood vessel; the upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with a positioning strip for positioning blood vessels; the main body supporting part is also provided with a plurality of overflow holes, and the overflow holes penetrate through the upper surface and the lower surface of the main body supporting part. The main body supporting part adopts green and other vivid colors which are easy to distinguish, and the upper surface is provided with transverse and longitudinal scales. The anastomosed vessel can be stably placed and is not immersed in liquid such as cerebrospinal fluid or blood nearby, and the anastomosed vessel can be completely exposed in the sight of an operator, so that the operation is convenient.
Description
Technical Field
The invention belongs to the technical field of medical vascular suturing lap joint anastomosis instruments, and particularly relates to a vascular anastomosis fixing and supporting device and an operation method thereof.
Background
Vascular anastomosis is a basic operation form clinically, and comprises vascular injury repair, vascular transplantation, vascular lap joint, vascular suturing, repair and the like, and is a commonly used effective treatment method for reconstructing blood flow. The application is very wide, and is commonly used in various surgical operations, such as replantation of the severed limb, vascular accidental injury, organ transplantation, anastomosis of arteriovenous fistula and the like. With the continuous development of microsurgery instruments, microsurgery lines and operation microscopes, the manual small (micro) vessel anastomosis technology is gradually mature, and the caliber of anastomosed vessels is gradually reduced.
However, it is not easy for even experienced surgeons to perform a perfect vascular anastomosis, particularly the small microvascular anastomosis mentioned above. The following takes intracranial vascular suturing as an example to see the difficulties faced: firstly, the surrounding environment where the blood vessels to be anastomosed are relatively complex, a plurality of nerves/fibers, various brain tissues and the like are densely distributed around any blood vessel, meanwhile, the blood vessels are immersed in the cerebrospinal fluid/blood and mixed liquid composed of cleaning liquid, nutrient solution and the like which are continuously injected from outside in the operation process, the blood vessels to be operated with similar colors are not easy to separate, visual fatigue is caused by long-time operation, and the risk of misoperation is increased; the diameters of the blood vessels to be anastomosed are smaller, the blood vessels are different from a few tenths of a millimeter to two or three millimeters, the blood vessels become soft and smooth after the blood flow is clamped, the devices can move when in contact, the positions are difficult to fix, and the suturing is difficult; in addition, while the patient is in a dormant or semi-dormant state, the beating of the heart is still transmitted to various parts of the whole body, particularly cerebral vessels and nerve parts, and is in an unstable state during anastomosis operation, and the operator needs to take great care in suturing operation to avoid puncturing nearby tissues and free nerves and vessels; finally, it is critical that the blood vessel and associated tissue be deprived of nutrient supply after occlusion, and that this condition be too long in duration, resulting in deactivation and even complete necrosis, which is highly desirable for the duration of the suturing procedure. For very fine anastomosis procedures which need to be carried out under a microscope, the external conditions are very unfavorable for judgment of operators, so that the operation difficulty of medical staff is increased, and the operation efficiency and quality are affected.
At present, some flexible sheets or gauzes are usually adopted to assist suture operation, and although partial problems can be solved, the efficiency is still low, the function is single, and the operation is not standard.
Disclosure of Invention
In order to solve the technical problems, the invention provides a vascular anastomosis fixing and supporting device which can solve the problems.
The vascular anastomosis fixation support device comprises: a main body supporting part and a bending part formed to extend upward along one end of the main body supporting part; the main body supporting part comprises an upper surface and a lower surface opposite to the upper surface, the middle part of the upper surface of the main body supporting part extends upwards to form a convex supporting part, and the middle part of the top surface of the convex supporting part is recessed inwards to form a supporting cambered surface for being matched with a blood vessel; the upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with a positioning strip for positioning blood vessels; the main body supporting part is also provided with a plurality of overflow holes, and the overflow holes penetrate through the upper surface and the lower surface of the main body supporting part.
In one embodiment, the vascular anastomosis fixation support device further comprises a drainage tube disposed at an end of the body support portion remote from the curved portion; the overflow holes are formed around the convex supporting parts.
In one embodiment, the lower surface of the main body supporting part is concavely provided with a drainage groove and a drainage pipe clamping groove communicated with the drainage groove, and the drainage pipe clamping groove is used for accommodating the drainage pipe.
In one embodiment, positioning bar clamping grooves for fixing the positioning bars are respectively formed in the upper surface of the main body supporting part and on two sides of the protruding supporting part; the positioning strip clamping groove comprises a first positioning strip clamping groove and a second positioning strip clamping groove, and the positioning strip comprises a first positioning strip and a second positioning strip; the first positioning strip clamping groove is arranged adjacent to the bending part, and the second positioning strip clamping groove is arranged adjacent to one end of the drainage tube; the first positioning strip comprises a first positioning fixed end and a first positioning movable end, the first positioning fixed end is fixed on the main body supporting part through the first positioning strip clamping groove, and the first positioning movable end can be bent upwards to fix a blood vessel; the second locating strip comprises a second locating fixed end and a second locating movable end, the second locating fixed end is fixed on the main body supporting part through a second locating strip clamping groove, and the second locating movable end can be bent upwards to fix a blood vessel.
In one embodiment, the length X and the width Y of the protruding support portion may be different according to different diameters of blood vessels. Specifically, one of the length X and the width Y of the convex supporting portion is greater than the sum of the diameters of the two blood vessels to be sutured plus a regulating value N (for example, in one mode, the value of N is taken to be 0.2-5mm depending on the blood vessel and suturing type).
In one embodiment, the distance h between the raised support portion and the upper surface of the main body support portion is greater than 0, and the surface of the liquid in the environment where the blood vessel is located is not higher than the upper surface of the main body support portion.
In one embodiment, the total length of the vascular anastomosis fixation support device in plan view is L and the length of the body support portion is L, and the lengths L and L can be determined according to different blood vessel sizes and suturing types. Specifically, the overall length L of the plan view of the vascular anastomosis fixation support device is the sum of the projection length of the curved portion to the plane on which the body support portion is located and the length L of the body support portion.
In one embodiment, a scale center point 0 is arranged at the center of the supporting cambered surface of the convex supporting part; the two sides of the supporting cambered surface of the convex supporting part are respectively provided with transverse scales; the upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with longitudinal scales. It will be appreciated that in other embodiments, the transverse graduations and the longitudinal graduations are not limited to being on both sides, but that the entire raised support may be provided with transverse graduations; the whole main body supporting part is provided with longitudinal scales.
In one embodiment, the bending portion is provided with a through hole for pulling or facilitating the passage of the instrument, and the end of the bending portion is elliptical, and it is understood that in other embodiments, the end of the bending portion is not limited to elliptical, but may be circular or triangular or other shapes; the vascular anastomosis fixing and supporting device is made of flexible materials, and the density of the vascular anastomosis fixing and supporting device is less than that of water; the color is set to be green or vivid color which is distinguished from blood vessels.
The invention also provides an operation method of the vascular anastomosis fixing and supporting device, which comprises the following steps:
Placing the vascular anastomosis fixation support device as described above in the lower portion of the vessel to be anastomosed, separated from other tissues or fluids in the environment where the vessel to be anastomosed is located, wherein the surface of the fluid in the environment where the vessel to be anastomosed is located is not higher than the upper surface of the main body support portion;
adjusting the positions of the two blood vessels to be anastomosed to enable the two blood vessels to be anastomosed to be positioned on the supporting cambered surface of the convex supporting part;
the movable ends of the positioning strips are respectively adjusted by the instrument to be bent to be matched with the blood vessels to be anastomosed, the positions of the blood vessels to be anastomosed are flexibly limited, and the blood vessels to be anastomosed are prevented from tilting, laterally moving and axially moving in the suturing process;
The bending part is pulled to adjust the position of the vascular anastomosis fixing and supporting device, so that the bending part is supported on nearby tissues or gauze and other instruments as much as possible, and the operation position is stabilized; or by clamping the flexure with the instrument to fix the work pad position.
In one embodiment, the method of operation further comprises: when the cerebrospinal fluid or blood and other liquids at the blood vessel to be anastomosed are continuously increased or heparin saline water in the operation area is required to be continuously washed to be increased, and the liquid level is raised to the raised supporting surface, the drainage tube is arranged on the fixed supporting device for vascular anastomosis to drain the liquid out of the body, so that the raised supporting surface is kept on a stable plane or the position to be anastomosed is kept in a relatively dry environment.
In one embodiment, the method of operation further comprises: when the blood vessel to be anastomosed moves, the moving size and the moving position of the blood vessel to be anastomosed are judged according to the relative positions of the transverse graduations and the longitudinal graduations arranged on the blood vessel to be anastomosed and the vascular anastomosis fixed supporting device, and operation adjustment is timely made.
The invention has at least the following advantages:
the middle part of the upper surface of the main body supporting part extends upwards to form a convex supporting part, namely the convex supporting part is higher than the upper surface of the main body supporting part, so that the sutured blood vessel can be stably placed and is not immersed in liquid such as cerebrospinal fluid or blood nearby, and the sutured blood vessel can be completely exposed in the sight of an operator, and is convenient to operate; bending the first positioning movable end of the horizontally arranged first positioning strip and the second positioning movable end of the second positioning strip to be matched with the blood vessel to be anastomosed by using an instrument, wherein the position of the blood vessel to be anastomosed is limited flexibly, and the blood vessel to be anastomosed is prevented from tilting, laterally moving and axially moving in the suturing process; the vascular anastomosis fixing and supporting device can conduct upper and lower liquid through overflow holes around the convex supporting part, and can play a role in balancing the whole platform; the transverse graduations and the longitudinal graduations are arranged, so that the information such as the diameter of the blood vessel, the relative positions of the two blood vessels, the anastomosis size and the like can be provided for an operator, accurate judgment is facilitated, and the quality of anastomosis operation is improved; the vascular anastomosis fixing and supporting device is made of flexible materials, has the density smaller than that of water and has certain supporting force; the color is set to be green or vivid color which is obviously different from blood vessels; the reflecting lining plays a role of a contrast substance with the transparent vessel wall in the clamping state, is convenient to distinguish, provides a clear visual field, is convenient to operate, and reduces the risk of misoperation.
Drawings
FIG. 1 is a schematic view of a vascular anastomosis fixation support device provided by the present invention;
FIG. 2 is a schematic view of another orientation of the vascular anastomosis fixation support device provided by the present invention, with arrows representing fluid flow;
FIG. 3 is a schematic view of another orientation of the vascular anastomosis fixation support device provided by the present invention, with the first and second positioning strips omitted for clarity of illustration;
FIG. 4 is a side view of a vascular anastomosis fixation support device provided by the present invention;
FIG. 5 is a top view of a vascular anastomosis fixation support device provided by the present invention;
FIG. 6 is a schematic view of an embodiment of a vascular anastomosis fixation support device applied to an end-to-end anastomosis procedure, wherein arrows in the schematic view represent fluid flow directions;
FIG. 7 is a side view of an end-to-end anastomosis fixation support device in accordance with one embodiment of the present invention, as shown with additional tissue or fluid in the environment of the vessel to be anastomosed, and with arrows representing fluid flow, for purposes of more clearly illustrating the invention;
fig. 8 is a schematic view of a vascular anastomosis fixation support device according to an embodiment of the present invention applied to a lateral anastomosis procedure, in which arrows indicate fluid flow directions.
Reference numerals in the drawings:
Vascular anastomosis fixation support device 10; a main body support 11; a bending section 12; an upper surface 13; a lower surface 14; a convex supporting portion 15; a support cambered surface 16; a drainage tube 17; a drainage groove 18; a drainage tube clamping groove 19; an overflow aperture 20; a positioning strip clamping groove 21; a positioning strip 22; a first positioning bar clamping groove 23; a second locating bar slot 24; a first positioning bar 25; a second locating bar 26; a first positioning fixing end 27; a first positioning movable end 28; a second positioning fixed end 29; a second positioning movable end 30; a through hole 31; a transverse scale 32; a longitudinal scale 33; a vascular end face 34 to be anastomosed; the end face 35 of the blood vessel to be anastomosed; a liquid 36; a longitudinal vessel a incision 37; a longitudinal vessel B incision 38.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, a vascular anastomosis fixation support device 10 according to the present invention is shown. The vascular anastomosis fixation support device 10 includes a main body support portion 11 and a curved portion 12 extending upwardly along one end of the main body support portion 11. Further, the main body supporting part 11 includes an upper surface 13 and a lower surface 14 opposite to the upper surface 13, and a middle portion of the upper surface 13 of the main body supporting part 11 extends upward to form a convex supporting part 15. The middle part of the top surface of the convex supporting part 15 is concave inwards to form a supporting cambered surface 16 for matching with a blood vessel.
The vascular anastomosis fixation support device 10 further comprises a drainage tube 17, wherein the drainage tube 17 is arranged at one end of the main body support part 11 far away from the bending part 12. Specifically, the lower surface 14 of the main body supporting portion 11 is provided with a drainage groove 18 and a drainage tube clamping groove 19 communicated with the drainage groove 18, and the drainage tube clamping groove 19 is used for accommodating the drainage tube 17, so that the liquid in the environment where the blood vessel is located flows to the drainage tube 17 through the drainage groove 18 and is discharged, and the nearby liquid can be guided into the drainage tube 17 under the condition that the drainage tube 17 does not protrude out of the lower surface 14, so that the liquid is prevented from rising excessively to infiltrate the blood vessel to be anastomosed. It will be appreciated that in other embodiments, the drainage tube clamping grooves 19 may be provided in plurality, and the drainage tube 17 may be provided in plurality. It will be appreciated that in other embodiments, the drain 17 may not be installed if the surgical environment is relatively free of too much fluid disturbance.
The main body supporting part 11 is further provided with a plurality of overflow holes 20, and the overflow holes 20 are arranged through the upper surface 13 and the lower surface 14 of the main body supporting part 11. In this embodiment, the plurality of overflow holes 20 are formed around the protruding support portion 15, so that the liquid such as cerebrospinal fluid or blood above and below the vascular anastomosis fixing and supporting device 10 can flow at any time, thereby maintaining the overall balance stability.
The upper surface 13 of the main body supporting part 11 is provided with a positioning strip clamping groove and a positioning strip respectively at two sides of the convex supporting part 15. Specifically, the positioning strip clamping groove comprises a first positioning strip clamping groove 23 and a second positioning strip clamping groove 24, and the positioning strip comprises a first positioning strip 25 and a second positioning strip 26. The first positioning strip clamping groove 23 is arranged adjacent to the bending portion 12, and the second positioning strip clamping groove 24 is arranged adjacent to one end of the drainage tube 17. The first positioning strip 25 and the first positioning movable end 28 comprise a first positioning fixed end 27 and a first positioning movable end 28, wherein the first positioning fixed end 27 is fixed on the main body supporting part 11 through the first positioning strip clamping groove 23, and the first positioning movable end 28 can be bent upwards to fix a blood vessel, for example, can be bent into a required shape under the action of external force such as an instrument and the like, and can keep the shape. The second positioning strip 26 includes a second positioning fixing end 29 and a second positioning movable end 30, the second positioning fixing end 29 is fixed on the main body supporting portion 11 through the second positioning strip clamping groove 24, and the second positioning movable end 30 can be bent upwards to fix a blood vessel, for example, can be bent into a required shape under the action of external force such as an instrument, and can maintain the shape. More specifically, when the vascular anastomosis fixation support device 10 is not in use, the first positioning strip 25 and the second positioning strip 26 are both disposed flat on the upper surface 13 of the body support 11; when the vascular anastomosis fixing and supporting device 10 is used, after the blood vessel to be anastomosed is placed on the convex supporting part 15, the first positioning movable end 28 of the horizontally arranged first positioning strip 25 and the second positioning movable end 30 of the second positioning strip 26 are respectively bent by instruments to be matched with the blood vessel to be anastomosed, the position of the blood vessel to be anastomosed is limited by softness, and the occurrence of tilting, lateral movement and axial movement of the blood vessel to be anastomosed in the suturing process are prevented.
Further, referring to fig. 4, the main body supporting portion 11 and the protruding supporting portion 15 have a relatively thin overall thickness, so that the deep brain tissue can be easily protected by the gap between them without damaging the blood vessel to be sutured and the surrounding tissue.
Further, the curved portion 12 may assist in positioning the device or tissue in the vicinity of the device, as desired. In this embodiment, the bending portion 12 is provided with a through hole 31 for pulling or facilitating the passage of the instrument, and the end of the bending portion 12 is elliptical. It will be appreciated that in other embodiments, the ends of the curved portions are not limited to elliptical shapes, but may be rounded or triangular in other shapes.
Further, in this embodiment, a scale center point 0 is provided at the center of the supporting arc surface 16 of the convex supporting portion 15. The two sides of the supporting cambered surface 16 of the convex supporting part 15 are respectively provided with transverse scales 32. The upper surface 13 of the main body support 11 is provided with longitudinal graduations 33 on both sides of the protruding support 15. It will be appreciated that in other embodiments, the transverse graduations and the longitudinal graduations are not limited to two sides, but that the entire raised support portion may be provided with the transverse graduations and the entire main body support portion may be provided with the longitudinal graduations. The transverse scale and the longitudinal scale are arranged in this way, so that the information such as the diameter of the blood vessel, the relative positions of the two blood vessels, the anastomosis size and the like can be provided for the operator, the accurate judgment is convenient, and the quality of anastomosis operation is improved.
Further, referring to fig. 4 again, the distance h between the raised supporting portion 15 and the upper surface 13 of the main supporting portion 11 is h, h is greater than 0, the liquid surface in the environment where the blood vessel is located is not higher than the upper surface of the main supporting portion, so that the sutured blood vessel can be stably placed and is not immersed in the liquid such as cerebrospinal fluid or blood nearby, and the sutured blood vessel can be completely exposed in the sight of the operator, and is convenient to operate.
Further, in this embodiment, the surface of the liquid in the environment where the blood vessel is located is slightly lower than or level with the main body supporting part 11, and the whole gravity center is designed to be located below the liquid surface as much as possible, so that the whole vascular anastomosis fixing and supporting device 10 is kept balanced and stable and is not easy to turn over.
Further, the length X and the width Y of the protruding support portion 15 are the same, and the length X and the width Y of the protruding support portion 15 may be different according to different blood vessel diameters. Specifically, one of the length X and the width Y of the convex supporting portion 15 is greater than the sum of the diameters of the two blood vessels to be sutured plus a regulating value N (for example, in one mode, the value of N may be taken to be 0.2-5mm depending on the blood vessel and suturing type).
Further, the total length L of the vascular anastomosis fixation support device 10 and the length L of the body support 11 thereof are defined by the vessel size and the suturing type. Specifically, the overall length L of the plan view of the vascular anastomosis fixation support device 10 is the sum of the projected length of the curved portion 12 to the plane of the body support portion 11 and the length L of the body support portion 11. Due to the adoption of the flexible material, medical staff can also properly cut according to actual conditions, so that the medical staff is more suitable for clinical condition requirements.
Further, in the present embodiment, the material of the vascular anastomosis fixing and supporting device 10 is a flexible material, the density of which is smaller than that of water, and the device has a certain supporting force; the color is set to be green or vivid color which is obviously different from blood vessels; the reflecting lining plays a role of a contrast substance with the transparent vessel wall in the clamping state, is convenient to distinguish, provides a clear visual field and is convenient to operate.
The method of operation of the vascular anastomosis fixation support device 10 provided by the present invention will be described in connection with two different embodiments of the blood vessel to be anastomosed.
Referring to fig. 6, in a first embodiment of the present invention, a method for operating a vascular anastomosis fixation support device 10 in a 1mm diameter mini-vascular end anastomosis comprises the steps of:
Separating two blood vessels A and B to be anastomosed, wherein the two ends respectively block blood flow, and the end face 34 to be anastomosed of the blood vessel A and the end face 35 to be anastomosed of the blood vessel B are as same as possible, or can be trimmed into inclined planes to enlarge the anastomotic stoma area, or an internal supporting mode is adopted to obtain similar suture end faces; or can be placed into a vascular support plug to assist in expanding the blood vessel to be anastomosed;
The vascular anastomosis fixing and supporting device 10 provided by the invention is placed at the lower part of a blood vessel to be anastomosed and isolated from other tissues or liquid in the environment where the blood vessel to be anastomosed is positioned;
The positions of the two blood vessels are adjusted to be positioned on the supporting cambered surface 16 of the convex supporting part 15;
The first positioning movable end 28 of the first positioning strip 25 and the second positioning movable end 30 of the second positioning strip 26 are respectively adjusted by an instrument to be bent to be matched with the blood vessel to be anastomosed, the position of the blood vessel to be anastomosed is limited flexibly, and the blood vessel to be anastomosed is prevented from tilting, laterally moving and axially moving in the suturing process;
The position of the vascular anastomosis fixing and supporting device 10 is adjusted by pulling the through hole 31 of the bending part 12, so that the bending part 12 is supported on nearby tissues or instruments such as gauze as much as possible, and the operation position is stabilized; or by means of the through hole 31 of the instrument holding bending part 12.
The liquid 36 at the operation position can be led out through the drainage tube 17 before or during operation, so that the operation platform is in a stable state, that is, the surface of the liquid 36 is level with or slightly lower than the upper surface 13 of the main body supporting part 11; specifically, when the liquid at the blood vessel to be anastomosed, such as cerebrospinal fluid/blood, is continuously increased or heparin saline is continuously required to wash the operation area in operation, so that the liquid level rises to the top surface of the raised support portion 15, the liquid 36 can be drained out of the body by the drainage tube 17 (refer to fig. 7) to avoid the blood vessel from being infiltrated, so that the operation position is kept on a stable plane or the anastomosed part is kept in a relatively dry environment. It will be appreciated that this drain 17 may not be installed if the surgical environment is relatively free of too much fluid disturbance.
When the external injection of the cleaning liquid or the nutrient solution causes the unstable vascular anastomosis fixing and supporting device 10 due to the impact or the rising of the liquid level, the vascular anastomosis fixing and supporting device 10 can conduct the upper liquid and the lower liquid through the overflow holes 20 around the convex supporting part 15, and can play a role of balancing the whole platform.
The medical staff can judge whether the blood vessel size and the position move or not according to the relative positions of the transverse scale 32 and the longitudinal scale 33 on the fixed supporting device 10 for vascular anastomosis during suturing, so that the operation and adjustment are convenient and timely.
Referring to fig. 8, a second embodiment of the present invention is a method for operating a vascular anastomosis fixation support device 10 in 2mm diameter mini-vascular side anastomosis, comprising the steps of:
The operation of the side anastomosis of the second embodiment is similar to the end anastomosis of the first embodiment, except that the placement position and the suturing position of the two blood vessels to be sutured of the side anastomosis are different from the end anastomosis, so that the positioning method can be adjusted as required.
Two blood vessels A and B to be anastomosed are separated, blood flow is blocked by clamping two ends of an anastomosed part by a blood vessel clamp, and a corresponding longitudinal blood vessel A incision 37 and a corresponding longitudinal blood vessel B incision 38 are made. The two suture blood vessels are placed in parallel and are close to each other, the incision positions are placed oppositely, and the direction is slightly upward according to the requirement; or can be placed into a vascular support plug to assist in expanding the blood vessel to be anastomosed;
The first positioning movable end 28 of the first positioning strip 25 and the second positioning movable end 30 of the second positioning strip 26 are respectively adjusted by an instrument and bent to be matched with the blood vessels to be anastomosed, and the difference is that one blood vessel or two blood vessels can be respectively fixed at two sides of the anastomosed blood vessels at the moment according to the requirement;
the position of the vascular anastomosis fixing and supporting device 10 is adjusted by pulling the through hole 31 of the bending part 12, so that the bending part 12 is supported on nearby tissues or instruments such as gauze as much as possible, and the operation position is stabilized; the working pad position can also be fixed by means of the through hole 31 of the clamping bending part 12.
The liquid at the operation position can be led out through the drainage tube 17 before or during operation, so that the operation platform is in a stable state; it will be appreciated that this drain 17 may not be installed if the surgical environment is relatively free of too much fluid disturbance.
When the vessel anastomosis fixing and supporting device 10 is unstable due to impact or liquid level elevation caused by the injection of the cleaning liquid or the nutrient solution from the outside, the overflow hole 20 of the vessel anastomosis fixing and supporting device 10 conducts the liquid at the upper part and the lower part, so that the effect of balancing the whole platform can be achieved.
The medical staff can judge whether the blood vessel size and the position move or not according to the relative positions of the transverse scale 32 and the longitudinal scale 33 on the fixed supporting device 10 for vascular anastomosis during suturing, so that the operation and adjustment are convenient and timely.
In particular, in the second embodiment, the length X of the protruding support portion 15 should be greater than the sum of diameters of two blood vessels, and the width Y of the protruding support portion 15 should be greater than the incision length of the blood vessels.
The invention has at least the following advantages:
the middle part of the upper surface of the main body supporting part extends upwards to form a convex supporting part, namely the convex supporting part is higher than the upper surface of the main body supporting part, so that the sutured blood vessel can be stably placed and is not immersed in liquid such as cerebrospinal fluid or blood nearby, and the sutured blood vessel can be completely exposed in the sight of an operator, and is convenient to operate; bending the first positioning movable end of the horizontally arranged first positioning strip and the second positioning movable end of the second positioning strip to be matched with the blood vessel to be anastomosed by using an instrument, wherein the position of the blood vessel to be anastomosed is limited flexibly, and the blood vessel to be anastomosed is prevented from tilting, laterally moving and axially moving in the suturing process; the vascular anastomosis fixing and supporting device can conduct upper and lower liquid through overflow holes around the convex supporting part, and can play a role in balancing the whole platform; the transverse graduations and the longitudinal graduations are arranged, so that the information such as the diameter of the blood vessel, the relative positions of the two blood vessels, the anastomosis size and the like can be provided for an operator, accurate judgment is facilitated, and the quality of anastomosis operation is improved; the vascular anastomosis fixing and supporting device is made of flexible materials, has the density smaller than that of water and has certain supporting force; the color is set to be green or vivid color which is obviously different from blood vessels; the reflecting lining plays a role of a contrast substance with the transparent vessel wall in the clamping state, is convenient to distinguish, provides a clear visual field, is convenient to operate, and reduces the risk of misoperation.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. A vascular anastomosis fixation support device, comprising: a main body supporting part and a bending part formed to extend upward along one end of the main body supporting part; the main body supporting part comprises an upper surface and a lower surface opposite to the upper surface, the middle part of the upper surface of the main body supporting part extends upwards to form a convex supporting part, and the middle part of the top surface of the convex supporting part is recessed inwards to form a supporting cambered surface for being matched with a blood vessel; the upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with a positioning strip for positioning blood vessels; the main body supporting part is also provided with a plurality of overflow holes, and the overflow holes penetrate through the upper surface and the lower surface of the main body supporting part;
The vascular anastomosis fixing and supporting device further comprises a drainage tube, wherein the drainage tube is arranged at one end of the main body supporting part far away from the bending part; a plurality of overflow holes are formed around the convex supporting part;
The upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with a positioning strip clamping groove for fixing the positioning strip; the positioning strip clamping groove comprises a first positioning strip clamping groove and a second positioning strip clamping groove, and the positioning strip comprises a first positioning strip and a second positioning strip; the first positioning strip clamping groove is arranged adjacent to the bending part, and the second positioning strip clamping groove is arranged at one end far away from the bending part; the first positioning strip comprises a first positioning fixed end and a first positioning movable end, the first positioning fixed end is fixed on the main body supporting part through the first positioning strip clamping groove, and the first positioning movable end can be bent upwards to fix a blood vessel; the second positioning strip comprises a second positioning fixed end and a second positioning movable end, the second positioning fixed end is fixed on the main body supporting part through a second positioning strip clamping groove, and the second positioning movable end can be bent upwards to fix a blood vessel;
the length of the convex supporting part is X, the width of the convex supporting part is Y, one of the length X and the width Y of the convex supporting part is larger than the sum of the diameters of two blood vessels to be sutured plus a regulating value N, and the length and the width of the convex supporting part are smaller than the length and the width of the main body supporting part; the distance that the protruding support portion is higher than the upper surface of the main body support portion is h, h is greater than 0, and the liquid surface in the environment where the blood vessel is located is not higher than the upper surface of the main body support portion.
2. The vascular anastomosis fixation support device of claim 1, wherein the lower surface of the body support portion is inwardly recessed with a drainage channel and a drainage tube clamping groove in communication with the drainage channel, the drainage tube clamping groove being configured to receive the drainage tube.
3. The vascular anastomosis fixation support device of claim 2, wherein a scale center point 0 is provided at the center of the support arc surface of the convex support portion; the two sides of the supporting cambered surface of the convex supporting part are respectively provided with transverse scales; the upper surface of the main body supporting part and two sides of the convex supporting part are respectively provided with longitudinal scales.
4. A vascular anastomosis fixation support device as claimed in claim 3, wherein the whole of the raised support portion is provided with transverse graduations and the whole of the body support portion is provided with longitudinal graduations.
5. The vascular anastomosis fixation support device of claim 4, wherein the curved portion has a through hole for pulling or facilitating passage of an instrument therethrough, and an end portion of the curved portion has an oval shape or a circular shape or a triangular shape; the vascular anastomosis fixing and supporting device is made of flexible materials, and the density of the vascular anastomosis fixing and supporting device is less than that of water; the color is set to a vivid color which is distinguished from blood vessels.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111436992B (en) * | 2020-05-07 | 2024-09-03 | 范宁 | Vascular anastomosis auxiliary device |
| WO2022022235A1 (en) * | 2020-07-28 | 2022-02-03 | 上海火点医疗器械有限公司 | Lumen anastomosis support dilator |
| GB2602470A (en) * | 2020-12-30 | 2022-07-06 | Pio Hong Joon | Surgical background device |
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