Coronary artery proximal anastomosis auxiliary device

Abstract

The utility model discloses an auxiliary device for coronary proximal anastomosis, which relates to the field of auxiliary components for coronary proximal surgery, solves the problems that the conventional device is large in integral structure, complicated in operation and possibly affects normal circulation of blood vessels, and adopts the following scheme that the auxiliary device comprises a main clamping seat and a core tube fixedly mounted at the front end of the main clamping seat, a blood discharge tube fixedly connected with the core tube is arranged at the rear end of the main clamping seat; a top frame is fixedly installed at the top of the main clamping seat, a clamping piece is arranged on the top frame in a sliding and sleeving mode, a lead screw shaft is arranged in the top frame, a lead screw cylinder matched with the lead screw shaft in specification is fixedly installed in the clamping piece, and two sets of elastic pieces and sleeve plates which are opposite in position are arranged on the front side of the clamping piece; according to the coronary proximal anastomosis auxiliary device, through the arrangement of the main clamping seat and the components on the main clamping seat, firstly, the overall height of the clamping pieces can be adjusted by rotating the lead screw shaft, so that blood vessels on the bottom side are limited in the horizontal direction, and the situation that blood vessel circulation is affected due to the fact that pressure is applied at the inclination angle is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coronary artery proximal surgical auxiliary components, in particular to a coronary artery proximal anastomosis auxiliary device. Background Technique

[0002] At present, in vascular surgery, it is often necessary to temporarily block the blood flow between the proximal and distal ends to ensure the normal progress of the surgery. However, temporarily blocking the blood flow between the proximal and distal ends often accompanies complications such as vascular intimal injury, partial / total wall thickness injury of the blood vessel wall, and thromboembolism caused by the injury. In addition, these injuries will also lead to endothelial denudation, intimal hyperplasia, atherosclerotic lesions, and lumen stenosis. In severe cases, the ascending aortic plaque will fall off due to external interference, triggering a stroke. In order to reduce the above injury risks, during coronary artery proximal surgery, an anastomosis auxiliary component is needed to limit its position to ensure the surgical effect;

[0003] After retrieval, in the application document with the patent application number 202020812223.9, a coronary artery bypass grafting proximal anastomosis auxiliary instrument is disclosed. The tail end of the upper snap ring clip extends into the shell and is connected to the worm gear I that drives its rotation. The worm gear I is connected to the worm I with a hollow structure. One end of the worm I extends out of the shell and is connected to the adjustment knob I; the tail end of the core tube is connected to the blood drainage device through a sliding drive rack. The sliding drive rack is connected to the drive gear. The drive gear is coaxially connected to the worm gear II. The worm gear II is connected to the worm II. One end of the worm II passes through the hollow structure of the worm I and is connected to the adjustment knob II stacked on the adjustment knob I. The worm I and the worm II can rotate relative to each other coaxially; the utility model has the characteristics of convenient operation, simple and compact structure, and reducing the probability of blocking the surgical field of view;

[0004] Although the above application document can achieve the adjustment effect, the overall structure is complex, the floor area is large, the expansion and limiting effects on smaller blood vessels are limited, resulting in low practicability, and the rotary position adjustment may cause the pressure applied by the limit to be an oblique pressure, affecting the transmission of the blood vessel.

[0005] Therefore, we propose a coronary artery proximal anastomosis auxiliary device. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a coronary artery proximal anastomosis auxiliary device, which solves the problems of the existing device with a large overall structure, cumbersome operation and possible impact on the normal blood circulation of the blood vessel.

[0007] To achieve the above purpose, the utility model is realized through the following technical solutions: a coronary artery proximal anastomosis auxiliary device, including a main clip seat and a core tube fixedly installed at its front end. An expansion film is further arranged at the front end of the core tube, and a blood drainage tube fixedly connected to the core tube is arranged at the rear end of the main clip seat;

[0008] A top frame is fixedly installed on the top of the main clamp seat. A clamping piece is slidably sleeved on the top frame. A lead screw shaft is arranged in the top frame. A lead screw cylinder adapted to the specification of the lead screw shaft is fixedly installed in the clamping piece. Two groups of opposite elastic pieces are arranged on the front side of the clamping piece, and a sleeve plate is also sleeved on the front end of the elastic piece.

[0009] Preferably, a U-shaped clamping groove is formed on the top side of the top frame. A clamping piece is movably sleeved on the top side of the top frame, and a main sleeve groove adapted to the specification of the clamping groove is formed on the clamping piece.

[0010] Among them, the clamping groove and the main sleeve groove are arranged with matching shapes, which facilitates the sliding of the clamping piece on the top side of the top frame and facilitates its vertical up-and-down movement driven by the rotation of the hand wheel disc, so as to ensure the flatness of the bottom-side blood vessel limit and avoid the situation that the oblique pressure affects the blood vessel transmission effect.

[0011] Preferably, a support piece is fixedly connected between the two elastic pieces on the front side of the clamping piece, and a secondary sleeve groove is formed at the center of the support piece.

[0012] Preferably, a sleeve plate adapted to the specification of the secondary sleeve groove and slidably sleeved is fixedly installed on the top of the main clamp seat in front of the top frame.

[0013] Among them, the setting of the secondary sleeve groove and the sleeve plate facilitates the stability of the clamping piece when it is driven to move up and down.

[0014] Preferably, the front end of the elastic piece is fixedly connected with an obliquely L-shaped end piece, and a pressing piece is sleeved on the front side of the two end pieces.

[0015] Among them, the setting of the end piece can cooperate with the pressing piece to limit the blood vessel from the top side, thereby ensuring the anastomosis assistance effect of the subsequent coronary artery proximal surgery.

[0016] Preferably, the top end of the lead screw shaft is fixedly connected with a hand wheel disc, and the bottom end of the lead screw shaft is fixedly connected to the bottom side wall of the clamping groove through a bearing ring.

[0017] The utility model provides a coronary artery proximal anastomosis assistance device, which has the following beneficial effects:

[0018] For this coronary artery proximal anastomosis assistance device, through the setting of the main clamp seat and its various components, firstly, the overall height of the clamping piece can be adjusted by rotating the lead screw shaft, so as to limit the bottom-side blood vessel in the horizontal direction and avoid the situation that the inclined angle applies pressure to affect the blood vessel circulation. At the same time, the overall structure is simple and the floor area is small, which is suitable for anastomosis assistance around the blood vessel, and solves the problems of the large overall structure and cumbersome operation of the existing device and the possible influence on the normal blood vessel circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the rear view of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the top frame of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the clip of the present utility model.

[0023] In the figure: 1, main clip seat; 2, core tube; 3, drainage tube; 4, top frame; 41, card slot; 42, lead screw shaft; 43, hand wheel disc; 5, clip; 51, main sleeve groove; 52, elastic piece; 53, support piece; 54, secondary sleeve groove; 55, end piece; 56, lead screw cylinder; 6, pressing piece; 7, sleeve plate. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , an embodiment of the present utility model provides a technical solution: a coronary artery proximal anastomosis assisting device, including a main clip seat 1 and a core tube 2 fixedly installed at the front end thereof. An expansion film is further provided at the front end of the core tube 2, and a drainage tube 3 fixedly connected to the core tube 2 is provided at the rear end of the main clip seat 1; a top frame 4 is fixedly installed on the top of the main clip seat 1, a clip 5 is slidably sleeved on the top frame 4, a lead screw shaft 42 is provided in the top frame 4, a lead screw cylinder 56 adapted to the specification of the lead screw shaft 42 is fixedly installed in the clip 5, two groups of elastic pieces 52 opposite in position are provided on the front side of the clip 5, and a sleeve plate 7 is further sleeved on the front end of the elastic piece 52;

[0026] Among them, for this coronary artery proximal anastomosis assisting device, through the setting of the main clip seat 1 and each component thereon, first, the overall height of the clip 5 can be adjusted by rotating the lead screw shaft 42, so as to limit the blood vessel at the bottom in the horizontal direction, avoiding the situation that the pressure applied at an inclined angle affects blood vessel circulation. At the same time, the overall structure is simple and occupies a small area, and is suitable for assisting anastomosis around the blood vessel, solving the problems of the large overall structure and cumbersome operation of the existing device and the possible influence on the normal blood vessel circulation.

[0027] Embodiment 2:

[0028] The top side of the top frame 4 is provided with a U-shaped clamping groove 41. A clamping piece 5 is movably sleeved on the top side of the top frame 4, and a main sleeve groove 51 adapted to the specifications of the clamping groove 41 is provided on the clamping piece 5. Among them, the clamping piece 5 is facilitated to slide on the top side of the top frame 4 due to the matching shapes of the clamping groove 41 and the main sleeve groove 51, and is facilitated to move up and down in the vertical direction by the rotation of the handwheel disc 43, so as to ensure the flatness of the bottom-side blood vessel limit and avoid the situation that the oblique pressure affects the blood vessel transmission effect.

[0029] A support piece 53 is fixedly connected between two sets of elastic pieces 52 on the front side of the clamping piece 5, and a secondary sleeve groove 54 is provided at the center of the support piece 53. A sleeve plate 7 adapted to the specifications of the secondary sleeve groove 54 and slidably sleeved is fixedly installed at the top of the main clamping seat 1 and is located in front of the top frame 4. Among them, the settings of the secondary sleeve groove 54 and the sleeve plate 7 facilitate the stability of the clamping piece 5 when it is driven to move up and down.

[0030] The front end of the elastic piece 52 is fixedly connected with an obliquely L-shaped end piece 55, and a pressing piece 6 is sleeved on the front sides of the two end pieces 55. Among them, the setting of the end piece 55 can cooperate with the pressing piece 6 to limit the blood vessel from the top side, thereby ensuring the anastomosis assistance effect of the subsequent coronary artery proximal surgery.

[0031] The top end of the lead screw shaft 42 is fixedly connected with a handwheel disc 43, and the bottom end of the lead screw shaft 42 is fixedly connected to the bottom side wall of the clamping groove 41 through a bearing ring.

[0032] The working principle and usage process of the present utility model: When the device needs to work, the main clamping seat 1 and the core tube 2 on its front side are punctured into the blood vessel, and the blood in the blood vessel is output by the blood discharge tube 3. At the same time, the lead screw shaft 42 is rotated to adjust the overall height of the clamping piece 5, so that the pressing piece 6 sleeved at its front end presses the blood vessel vertically downward from the top side to ensure the limiting effect and the anastomosis assistance limiting effect of the coronary artery proximal end.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0034] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coronary artery proximal anastomosis assisting device, comprising a main clamp seat (1) and a core tube (2) fixedly installed at the front end thereof. An unfolding film is further arranged at the front end of the core tube (2), and a blood drainage tube (3) fixedly connected to the core tube (2) is arranged at the rear end of the main clamp seat (1); It is characterized in that: A top frame (4) is fixedly installed at the top of the main clamp seat (1). A clamping piece (5) is slidably sleeved on the top frame (4). A lead screw shaft (42) is arranged in the top frame (4). A lead screw cylinder (56) adapted to the specification of the lead screw shaft (42) is fixedly installed in the clamping piece (5). Two groups of elastic pieces (52) opposite in position are arranged on the front side of the clamping piece (5), and a sleeve plate (7) is further sleeved at the front end of the elastic piece (52).

2. The coronary artery proximal anastomosis assistance device according to claim 1, characterized in that: A U-shaped clamping groove (41) is formed in the top side of the top frame (4). The clamping piece (5) is movably sleeved on the top side of the top frame (4), and a main sleeve groove (51) adapted to the specification of the clamping groove (41) is formed in the clamping piece (5).

3. The coronary artery proximal anastomosis assisting device according to claim 1, characterized in that: A support piece (53) is fixedly connected between the two groups of elastic pieces (52) on the front side of the clamping piece (5), and a secondary sleeve groove (54) is formed at the center of the support piece (53).

4. The coronary artery proximal anastomosis assistance device according to claim 3, characterized in that: A sleeve plate (7) adapted to the specification of the secondary sleeve groove (54) and slidably sleeved is fixedly installed at the top of the main clamp seat (1) and located in front of the top frame (4).

5. The coronary artery proximal anastomosis assisting device according to claim 1, wherein: The front end of the elastic piece (52) is fixedly connected with an obliquely L-shaped end piece (55), and a pressing piece (6) is sleeved on the front sides of the two groups of end pieces (55).

6. The coronary artery proximal anastomosis assisting device according to claim 1, characterized in that: The top end of the lead screw shaft (42) is fixedly connected with a hand wheel disc (43), and the bottom end of the lead screw shaft (42) is fixedly connected to the bottom side wall of the clamping groove (41) through a bearing ring.

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