Coronary artery bypass suture guiding device

Abstract

The utility model discloses a coronary artery bypass suture guiding device, which belongs to the technical field of medical instruments and comprises a guiding piece and a handheld piece, two guiding grooves are formed in the guiding piece and are respectively positioned on the front side and the back side of the guiding piece, the end part of one guiding groove extends to the outside of the guiding piece, and the end part of the other guiding groove extends to the outside of the handheld piece. The guide groove is used for containing a suture needle, the radian of the guide groove is the same as that of the suture needle, the guide groove is used for limiting the movement track of the suture needle when the suture needle is withdrawn, and the end of the handheld piece is connected with the guide piece and used for driving the suture needle in the guide piece to be located at the suture position of a coronary target blood vessel. The motion trail of the suture needle is limited under the action of the guide groove with the same radian as the suture needle, an operator can be helped to control the path of the suture needle more accurately, and therefore when the suture needle is withdrawn, the situation that the suture needle sutures the rear wall or the side wall of a coronary blood vessel, and consequently the coronary blood vessel is blocked or narrowed is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a coronary artery bypass suture guide. Background Art

[0002] Coronary artery bypass grafting is one of the effective treatments for myocardial ischemia caused by coronary heart disease. The surgical method is to use arteries or veins from other parts of the patient's body to supply blood to the distal end of the narrowed coronary artery. During the operation, a section of normal blood vessel is removed from the patient, one end of which is connected to the aorta, and the other end is connected to the distal side of the narrowed part of the coronary artery. Because this surgical method is like building a bridge, it is figuratively called "coronary artery bypass grafting."

[0003] Among them, the suturing quality of coronary artery bypass grafting directly affects the patient's postoperative recovery effect. Since the coronary artery is small, thin-walled, and transparent, it brings certain difficulties to suturing. In addition, the suture needle is small and difficult to observe during operation. It is easy to suture the side wall or posterior wall of the coronary artery, causing coronary artery stenosis or occlusion. For this reason, we propose a coronary artery bypass grafting suture guide to solve the above-mentioned problems. Utility Model Content

[0004] The embodiment of the utility model provides a coronary artery bypass graft suture introducer to solve the above-mentioned technical problems.

[0005] The embodiment of the utility model adopts the following technical scheme: it includes a guide piece and a hand piece, the guide piece is provided with two guide grooves, and the two guide grooves are respectively located on the front and back sides of the guide piece, and the end of one of the guide grooves extends to the outside of the guide piece, the guide groove is used to hold a suture needle, and the curvature of the guide groove is the same as the curvature of the suture needle, which is used to limit the movement trajectory of the suture needle when the needle is removed, and the end of the hand piece is connected to the guide piece, which is used to drive the suture needle in the guide piece to be located at the suture position of the coronary target blood vessel.

[0006] Furthermore, an indicator mark is provided on the guide member, and the indicator mark is close to the direction of the output end of the guide groove.

[0007] Furthermore, a flared portion is provided on one side of the input end of the guide groove, and the cross section of the flared portion is in an "eight" shape.

[0008] Furthermore, the hand piece includes a grip rod and a bendable connecting rod connected to the grip rod, and the bendable connecting rod is made of a metal shaped hose.

[0009] Furthermore, one end of the bendable connecting rod away from the gripping rod is detachably connected to the guide member.

[0010] Furthermore, protrusions are provided on the inner walls on both sides of the guide groove, and the protrusions are used to clamp and position the suture needle.

[0011] At least one of the above technical solutions adopted in the embodiment of the utility model can achieve the following beneficial effects:

[0012] In the utility model, the guide piece is placed at the angle between two blood vessels that need to be sutured through a handpiece, and then the suture needle is led out of the guide groove through a needle holding forceps. The movement trajectory of the suture needle is limited under the action of the guide groove with the same arc as the suture needle, which can help the operator to more accurately control the path of the suture needle, so that the suture needle can avoid suturing the posterior wall or side wall of the coronary blood vessel when the needle is withdrawn, causing blockage or stenosis of the coronary blood vessel, and by setting two different guide grooves on the front and back sides, the suturing method of inserting the needle from outside the coronary artery or inside the coronary artery can be realized according to the actual suturing situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of a guide groove structure in the utility model;

[0016] Figure 3 This is another schematic diagram of the guide groove structure in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the utility model when the suture needle is withdrawn from the guide groove during blood vessel suturing;

[0018] Figure 5 It is a structural schematic diagram of the utility model when the suture needle is introduced into the guide groove during blood vessel suturing.

[0019] 1. Guide piece; 11. Guide groove; 2. Suture needle; 3. Hand piece; 31. Grip rod; 32. Bendable connecting rod; 4. Indicator mark; 5. Expanding part; 6. Raised part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] The utility model embodiment provides a coronary artery bypass graft suture guide, such as Figure 1-5 As shown, it includes a guide piece 1 and a hand piece 3, and the hand piece 3 is connected to the guide piece 1, wherein the guide piece 1 is designed in an arc shape to avoid damage to the coronary artery, and the guide piece 1 is provided with guide grooves 11 located on the front and back sides of the guide piece 1, respectively, for placing the suture needle 2, and the movement trajectory of the suture needle 2 when the needle is removed can be limited. When in use, the operator can place the suture needle 2 in the guide groove 11 in advance, and move the suture needle 2 in the guide piece 1 to the suture position of the coronary target blood vessel through the hand piece 3, and one end of the guide groove 11 extends to the outside of the guide piece 1, and the guide groove 11 can be entered from the end, which is convenient for suturing from the outside of the coronary artery, and both ends of the guide groove 11 on the other side are located in the guide piece 1. During suturing, the guide piece 1 can be placed in the coronary artery, which is convenient for suturing from the inside of the coronary artery. Figure 4 As shown, the output end of the guide groove 11 is directed toward the coronary artery to be sutured, and then the suture needle 2 is led out of the guide groove 11 by means of a needle holding forceps. At this time, the state of the suture needle 2 can be more clearly seen with the help of tools such as a magnifying glass. Since the curvature of the guide groove 11 is the same as that of the suture needle 2, when the suture needle 2 is led out of the guide groove 11, the suture needle 2 is always in contact with the bottom of the guide groove 11, that is, it moves along the inner wall of the bottom of the guide groove 11. The guide groove 11 limits the suture needle 2, which can help the operator control the path of the suture needle 2 more accurately, avoid the suture needle 2 from penetrating too deep into the coronary artery, and thereby reduce the risk of suturing the posterior wall or side wall of the coronary artery.

[0023] Preferably, the handpiece 3 includes a grip rod 31 and a flexible connecting rod 32 connected to the grip rod 31. The grip rod 31 is convenient for the operator to hold, and the flexible connecting rod 32 is made of a metal shaped hose to facilitate changing the position and angle of the guide 1 or the grip rod 31 to avoid blocking the operator's line of sight during suturing, making it more flexible to use.

[0024] Among them, since the specifications of the suture needles 2 are different, such as 7-0, 6-0, etc., different suture needles 2 can be used according to different suturing requirements and suturing conditions, and the end of the flexible connecting rod 32 away from the gripping rod 31 can be detachably connected to the guide member 1 by means of threaded connection or snap connection, so as to facilitate the disassembly, assembly and replacement of the guide member 1, so that the guide grooves 11 on different guide members 1 can adapt to the accommodation of suture needles 2 of different specifications.

[0025] Preferably, since the suture needle 2 is relatively small and difficult to observe with the naked eye, it is difficult to observe the position of the needle tip when the suture needle 2 is placed in the guide groove 11. In order to avoid unnecessary trouble when leading out the suture needle 2, an indicator mark 4 is provided on the guide member 1. The indicator mark 4 is close to the direction of the output end of the guide groove 11. When the suture needle 2 is placed inside the guide groove 11, the indicator mark 4 can be referred to and the needle tip can be placed in the direction of the output end of the guide groove 11. When the guide member 1 is placed at the blood vessel suture, the output end of the guide groove 11 can be aligned with the coronary blood vessel to be sutured by the indication of the indicator mark 4, thereby improving the suturing efficiency.

[0026] Preferably, Figure 3 As shown, a flared portion 5 is provided at one side of the input end of the guide groove 11, and the cross section of the flared portion 5 is in an "eight" shape. After the suture needle 2 is drawn out from the guide groove 11 and the two blood vessels are sutured, as shown in FIG. Figure 5 As shown, if the suture needle 2 is to enter the guide groove 11 again, the opening degree of the input end of the guide groove 11 is increased by the flaring portion 5, so that the suture needle 2 can enter the guide groove 11 more easily, facilitating the next cycle of suturing.

[0027] Preferably, Figure 2 As shown, raised portions 6 are provided on the inner walls on both sides of the guide groove 11, and the raised portions 6 can be located in the middle of the guide groove 11 to clamp and position the suture needle 2, wherein the surface of the raised portion 6 can be an arc surface, and when the tip of the suture needle 2 enters the guide groove 11 and collides with the raised portion 6, it will not easily collide with the raised portion 6 to cause damage to the tip of the suture needle 2, and at the same time, the clamping of the suture needle 2 by the raised portion 6 makes the suture needle 2 located in the guide groove 11 more stable and will not slide or deviate easily.

[0028] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A coronary artery bypass graft suture guide, characterized in that: include; A guide member (1), wherein two guide grooves (11) are formed on the guide member (1), and the two guide grooves (11) are respectively located on the front and rear sides of the guide member (1), and the end of one of the guide grooves (11) extends to the outside of the guide member (1), and the guide groove (11) is used to contain the suture needle (2), and the curvature of the guide groove (11) is the same as the curvature of the suture needle (2), and is used to limit the movement trajectory of the suture needle (2) when the suture needle (2) is removed; A handpiece (3), wherein an end of the handpiece (3) is connected to the guide piece (1) and is used to drive the suture needle (2) in the guide piece (1) to be located at the suture position of the coronary target blood vessel.

2. The coronary artery bypass graft suture introducer according to claim 1, characterized in that: The guide member (1) is provided with an indication mark (4), and the indication mark (4) is close to the direction of the output end of the guide groove (11).

3. The coronary artery bypass graft suture introducer according to claim 1, characterized in that: A flared portion (5) is provided on one side of the input end of the guide groove (11), and the cross section of the flared portion (5) is in an "eight" shape.

4. The coronary artery bypass graft suture introducer according to claim 1, characterized in that: The hand piece (3) comprises a grip rod (31) and a bendable connecting rod (32) connected to the grip rod (31); the bendable connecting rod (32) is made of a metal shaped hose.

5. The coronary artery bypass graft suture introducer according to claim 4, characterized in that: One end of the bendable connecting rod (32) away from the gripping rod (31) is detachably connected to the guide member (1).

6. The coronary artery bypass graft suture introducer according to claim 1, characterized in that: Protrusions (6) are provided on the inner walls on both sides of the guide groove (11), and the protrusions (6) are used to clamp and position the suture needle (2).

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