Blood vessel stitching instrument

Abstract

The utility model discloses a blood vessel stitching instrument which comprises an outer shell and a fixed tube fixed at the side end of the outer shell, after the blood vessel stitching instrument is used for stitching a blood vessel, a first push block is pushed along the surface of the outer shell, the first push block slides along a first open hole, and when the first push block slides, a movable tube is driven to move together; the movable tube slides along the inner wall of the fixed tube, the first opening in the side face of the movable tube coincides with the second opening, two sutures are placed in the second opening, at the moment, the outer shell can be pushed in the direction of the sutures, one end of the fixed tube is pushed to the surface of a blood vessel in a surgical incision along the sutures in an angle-inclined mode, and then the operation is completed. According to the blood vessel stitching instrument device, the suture line is placed in the second opening, the suture line can be fixed in an elastic mode by pushing the first pushing block, the first pushing block can be pushed back to the original position, the movable pipe moves to drive the first opening to move, the suture line is pulled to be tensioned at the position, close to the blood vessel, in the body of the patient, and then the next operation can be conducted. The operation is simple.

Description

Technical Field

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

[0002] With the widespread application of interventional surgery, whether bleeding can be stopped quickly and effectively after surgery has become an important factor affecting the success or failure of the surgery. Due to the use of anticoagulant and antiplatelet drugs during surgery, doctors traditionally use a variety of external pressure methods to close arteries / veins, including direct pressure, sandbags or mechanical clamps. In recent years, more and more doctors use vascular suture devices to suture large and medium blood vessels after patients' interventional surgery to promote hemostasis and rapid wound recovery. Among them, the most commonly used vascular suture device is Abbott's Proglide vascular suture device, because compared with incision and suture, it has the advantages of reducing the probability of complications, shortening the patient's immobilization and hospitalization time, etc., and can be widely used in coronary intervention, radiofrequency ablation, structural heart disease, extracorporeal circulation and other heart-related procedures.

[0003] Most of the existing vascular suture devices need to tighten and cut the suture thread after completing the suturing of the blood vessel. The traditional manual cutting method cannot get close to the blood vessel, and the thread end may not be tightened when cutting the suture thread, which is not conducive to postoperative wound healing and the operation is relatively complicated.

[0004] So we proposed a vascular suture device to solve the above problems. Utility Model Content

[0005] The utility model provides a vascular suture device, which solves the problem mentioned in the above background technology that most of the existing vascular suture devices need to tighten and cut the suture thread after completing the suturing of the blood vessel, and the traditional manual cutting method cannot get close to the blood vessel, and the thread end may not be tightened when cutting the suture thread, which is not conducive to postoperative wound healing and the operation is relatively complicated.

[0006] The utility model provides the following technical solution: a vascular suturing device comprises an external shell and a fixed tube fixed at a side end of the external shell, a cavity is provided inside the external shell, a movable block is slidably connected to the side wall of the cavity, an opening one is provided on the upper wall of the external shell, a push block one is slidably connected in the opening one, one end of the push block one is fixedly connected to the side wall of the movable block, a movable tube is slidably connected in the cavity and the fixed tube, one end of the movable tube is fixedly connected to the movable block, an opening one is provided on the side wall of the movable tube, and an opening two is provided on the side wall of the fixed tube.

[0007] As an optional solution of the utility model, a fixing block is fixedly installed in the cavity, and the movable tube is slidably connected in the fixing block.

[0008] As an optional solution of the utility model, springs are fixedly installed on both side walls of the fixed block, and the other ends of the two springs are fixedly connected to the movable block.

[0009] As an optional solution of the utility model, the side wall of the external shell is provided with a second opening, a second push block is slidably connected in the second opening, and a connecting rod is fixedly installed at one end of the second push block.

[0010] As an optional solution of the utility model, wherein: a second slide groove is opened on the side wall of the movable tube, the second push block is slidably connected in the second slide groove, and the connecting rod is slidably connected in the first slide groove.

[0011] As an optional solution of the utility model, a fixing ring is fixedly installed on one side of the inner wall of the movable tube, and an annular blade is fixedly installed on one side of the connecting rod, and the protruding part of the annular blade matches the concave surface of the fixing ring.

[0012] The utility model has the following beneficial effects:

[0013] 1. After using the vascular suture device to suture the blood vessel, push the push block 1 along the surface of the outer shell, and the push block 1 slides along the opening 1. When the push block 1 slides, it drives the movable tube to move together, and the movable tube slides along the inner wall of the fixed tube. The opening 1 on the side of the movable tube overlaps with the opening 2, and the two sutures are placed in the opening 2. At this time, the outer shell can be pushed along the direction of the suture, and one end of the fixed tube is pushed along the suture to the surface of the blood vessel in the surgical opening at an inclined angle. At this time, the push block 1 can be pushed back to its original position, and the movement of the movable tube drives the opening 1 to move to pull the suture so that it is tightened near the blood vessel in the patient's body. At this time, the next step can be performed. The vascular suture device places the suture in the opening 2, and the tightness of the suture can be fixed by pushing the push block 1, and the operation is simple.

[0014] 2. With the cooperation among the fixed block, the spring, the movable tube, the slide groove 1, the slide groove 2, the opening 1, the fixed ring, the opening 2, the push block 2, the connecting rod, the annular blade, the fixed tube and the opening 2, when the suture is placed in the opening 1 and the opening 2, the device can automatically clamp the suture by releasing the push block 1, and then the suture can be cut by pushing the push block 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0017] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Figure 4 For the utility model Figure 2 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1. external shell; 11. cavity; 12. opening 1; 13. push block 1; 14. movable block; 15. fixed block; 16. spring; 17. movable tube; 171. slide slot 1; 172. slide slot 2; 173. opening 1; 174. fixing ring; 18. opening 2; 19. push block 2; 191. connecting rod; 192. annular blade; 2. fixed tube; 21. opening 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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. Example 1

[0021] See also Figure 1 - Figure 3 The vascular suture device comprises an outer shell 1 and a fixed tube 2 fixed at the side end of the outer shell 1. A cavity 11 is provided inside the outer shell 1. A movable block 14 is slidably connected to the side wall of the cavity 11. An opening 12 is provided on the upper wall of the outer shell 1. A push block 13 is slidably connected in the opening 12. One end of the push block 13 is fixedly connected to the side wall of the movable block 14. A movable tube 17 is slidably connected in the cavity 11 and the fixed tube 2. One end of the movable tube 17 is fixedly connected to the movable block 14. An opening 173 is provided on the side wall of the movable tube 17. An opening 21 is provided on the side wall of the fixed tube 2.

[0022] After the blood vessel is sutured using the vascular suture device, the two ends of the reserved suture thread can be wrapped around the fingers, and the suture thread can be gently pulled to make it slightly tight, and the push block 13 is pushed along the surface of the outer shell 1, and the push block 13 slides along the opening 12. When the push block 13 slides, the movable tube 17 is driven to move together, and the movable tube 17 slides along the inner wall of the fixed tube 2. When the push block 13 is pushed to the maximum movable distance, the opening 173 on the side of the movable tube 17 coincides with the opening 21, and the two suture threads can be placed in the opening 21. When the outer shell 1 is pushed along the direction of the suture, one end of the fixing tube 2 is pushed along the suture at an inclined angle to the surface of the blood vessel in the surgical opening. At this time, the pushing block 13 can be pushed back to its original position. When the pushing block 13 returns to its original position, the movable tube 17 moves to drive the opening 173 to move. When the opening 173 moves, the suture is pulled to be tightened near the blood vessel in the patient's body. At this time, the next step can be performed. The device places the suture in the opening 21, and the tightness of the suture can be fixed by pushing the pushing block 13. Example 2

[0023] See also Figure 2 - Figure 4 A fixed block 15 is fixedly installed in the cavity 11, and a movable tube 17 is slidably connected in the fixed block 15. Under the cooperation between the cavity 11, the fixed block 15 and the movable tube 17, the movable tube 17 is slidably connected to the fixed block 15.

[0024] Springs 16 are fixedly installed on both side walls of the fixed block 15, and the other ends of the two springs 16 are fixedly connected to the movable block 14. Under the cooperation between the fixed block 15, the springs 16 and the movable block 14, the springs 16 can automatically push the movable block 14 outward.

[0025] The side wall of the outer shell 1 is provided with an opening 18, in which a push block 19 is slidably connected, and a connecting rod 191 is fixedly installed at one end of the push block 19. With the cooperation between the opening 18, the push block 19 and the connecting rod 191, pushing the push block 19 can drive the connecting rod 191 to move together.

[0026] A second slide groove 172 is provided on the side wall of the movable tube 17, the second push block 19 is slidably connected in the second slide groove 172, and the connecting rod 191 is slidably connected in the first slide groove 171. With the cooperation between the movable tube 17, the second slide groove 172, the second push block 19, the connecting rod 191 and the first slide groove 171, the connecting rod 191 can slide in the first slide groove 171.

[0027] A fixing ring 174 is fixedly installed on one side of the inner wall of the movable tube 17, and an annular blade 192 is fixedly installed on one side of the connecting rod 191. The protruding part of the annular blade 192 matches the concave surface of the fixing ring 174. With the cooperation between the fixing ring 174, the connecting rod 191 and the annular blade 192, when the connecting rod 191 is pushed, the annular blade 192 can be driven to contact the fixing ring 174, and the suture line in the opening 173 can be cut off.

[0028] When it is necessary to cut the suture, the push block 13 can be pushed in the direction of the fixed tube 2, and the movement of the push block 13 drives the movable tube 17 to move together, and the movable tube 17 is moved until the opening 173 and the second opening 21 coincide with each other. At this time, the suture can be placed in the second opening 21, and the push block 13 is kept pushed to the lowermost position, and the fixed tube 2 is moved along the suture to the outside of the blood vessel at the surgical incision. At this time, the push block 13 can be released, and the push block 13 is released. Under the action of the spring 16, the movable block 14 is automatically pushed outward, and the movable block 14 slides along the inner wall of the cavity 11 to drive and pull the movable tube 17. The movement of the movable tube 17 drives the opening 173 on one side to be misaligned with the opening 21. At this time, when the opening 173 and the second opening 21 are aligned, the movable block 14 is automatically pushed outward. The suture thread is automatically clamped and fixed with the cooperation between the openings 21. At this time, the push block 19 can be pushed in the direction of the fixed tube 2. The push block 19 moves to drive the connecting rod 191 to slide along the opening 18 and the slide groove 172. The connecting rod 191 slides in the movable tube 17 to drive the annular blade 192 to approach the fixing ring 174. When the annular blade 192 and the fixing ring 174 are close to contact, the suture thread in the opening 173 can be automatically cut off. At this time, the fixed tube 2 can be taken out from the wound. When the device places the suture thread in the opening 173 and the opening 21, the push block 13 can be released to automatically complete the clamping of the suture thread, and then the suture thread can be cut off by pushing the push block 19.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A vascular suture device, comprising an outer shell (1) and a fixing tube (2) fixed to a side end of the outer shell (1), characterized in that: The outer shell (1) has a cavity (11) formed inside, and a movable block (14) is slidably connected to the side wall of the cavity (11). The upper wall of the outer shell (1) has an opening (12), and a push block (13) is slidably connected inside the opening (12), and one end of the push block (13) is fixedly connected to the side wall of the movable block (14). A movable tube (17) is slidably connected inside the cavity (11) and the fixed tube (2), and one end of the movable tube (17) is fixedly connected to the movable block (14). The side wall of the movable tube (17) has an opening (173), and the side wall of the fixed tube (2) has an opening (21).

2. The vascular suture device according to claim 1, characterized in that: A fixed block (15) is fixedly installed in the cavity (11), and the movable tube (17) is slidably connected in the fixed block (15).

3. The vascular suture device according to claim 2, characterized in that: Springs (16) are fixedly mounted on both side walls of the fixed block (15), and the other ends of the two springs (16) are fixedly connected to the movable block (14).

4. The vascular suture device according to claim 3, characterized in that: The side wall of the outer shell (1) is provided with a second opening (18), a second push block (19) is slidably connected in the second opening (18), and a connecting rod (191) is fixedly installed at one end of the second push block (19).

5. The vascular suture device according to claim 4, characterized in that: The side wall of the movable tube (17) is provided with a second slide groove (172), and the second push block (19) is slidably connected in the second slide groove (172). The interior of the movable tube (17) is provided with a first slide groove (171), and the connecting rod (191) is slidably connected in the first slide groove (171).

6. The vascular suture device according to claim 5, characterized in that: A fixing ring (174) is fixedly mounted on one side of the inner wall of the movable tube (17), and an annular blade (192) is fixedly mounted on one side of the connecting rod (191), wherein the protruding portion of the annular blade (192) matches the concave surface of the fixing ring (174).

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