Perfusion device for coronary artery perfusion operation

Abstract

The utility model provides a perfusion device for coronary artery perfusion operation, which comprises a perfusion tube, the A end of the perfusion tube is provided with a handheld handle, the B end of the perfusion tube is provided with a perfusion component for assisting perfusion, the perfusion component is internally provided with an adjusting cylinder connected with the perfusion tube, the adjusting cylinder is rotatably connected with the perfusion tube, and the handle is arranged on the handle. An adjusting mechanism for adjusting the rotation of the adjusting cylinder is arranged between the adjusting cylinder and the infusion tube; the adjusting mechanism comprises a first limiting seat, a second limiting seat, an adjusting piece, a limiting block, a fixing block, a sliding block and an adjusting wire. By means of the adjusting piece arranged in the adjusting mechanism, supporting force can be provided for the rotating angle of the adjusting cylinder and the infusion tube, so that when the adjusting cylinder is pulled by the adjusting wire to rotate, the adjusting piece can deform to act as counter-acting force with the adjusting wire, and then the adjusting cylinder can stably rotate along with movement of the adjusting wire; therefore, the adjusting cylinder drives the perfusion assembly to change the perfusion angle, and the purpose of widening the application range of the perfusion device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cardiac surgery equipment, in particular to a perfusion device for coronary artery perfusion operation. Background Art

[0002] Coronary artery perfusion refers to an operation to protect myocardial cells by perfusing myocardial arrest protective fluid through the opening of the coronary artery during heart surgery. After this operation, the heart is stopped and the doctor performs heart surgery. The heart is perfused to protect the myocardial tissue from ischemia and reperfusion injury during the operation, so that the heart can be re-beaten and its normal contractile function can be restored;

[0003] During a coronary perfusion procedure, doctors use a perfusion device such as Figure 6 As shown, myocardial protective solution is slowly injected into the coronary artery to protect myocardial cells, reduce cell metabolism, and reduce reperfusion injury;

[0004] During the actual use of the above-mentioned perfusion device, the angle of the injection head of the perfusion device is usually fixed, but the coronary artery angles of different patients are different. The injection head with a single angle is prone to poor adaptation during the perfusion process, thereby affecting the perfusion effect of the myocardial protective solution.

[0005] In summary, there is a need for a myocardial protective fluid perfusion device that can adjust the perfusion angle. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a perfusion device for coronary artery perfusion operation, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A perfusion device for coronary artery perfusion operation, comprising a perfusion tube, a hand-held handle is provided at the A end of the perfusion tube, a perfusion assembly for assisting perfusion is provided at the B end of the perfusion tube, an adjusting cylinder connected to the perfusion tube is provided inside the perfusion assembly, the adjusting cylinder is rotatably connected to the perfusion tube, and an adjusting mechanism for adjusting the rotation of the adjusting cylinder is provided between the adjusting cylinder and the perfusion tube;

[0009] The adjustment mechanism includes a limit seat 1, a limit seat 2, an adjustment sheet, a limit block, a fixed block, a slider and an adjustment wire. The limit seat 1 is arranged on the inner side of the adjustment tube, the limit seat 2 is arranged on the inner side of the perfusion tube, an adjustment sheet is arranged between the limit seat 2 and the limit seat 1, and the adjustment sheet has an arc-shaped structure. The two ends of the adjustment sheet are respectively engaged and slid with the limit seat 2 and the limit seat 1, and limit blocks are arranged on both ends of the adjustment sheet. The fixed block is arranged on the inner side of the bottom of the adjustment tube, and an adjustment wire is arranged on the bottom surface of the fixed block. The slider is arranged inside the perfusion tube, and the adjustment wire is engaged and slid with the slider.

[0010] Furthermore, the perfusion assembly includes a perfusion sleeve and an injection head. The perfusion sleeve is arranged outside the adjustment tube and outside the B end of the perfusion tube. The middle part of the perfusion sleeve is an elastic structure. The injection head is arranged on the top of the perfusion sleeve, and a perfusion hole is opened on the top of the injection head.

[0011] Furthermore, the perfusion assembly also includes an injection tube and a connecting nozzle, one end of the injection tube is connected to the middle of the top end of the regulating tube, the other end of the connecting nozzle is located inside the B end of the perfusion tube, and the injection tube is connected to the connecting nozzle.

[0012] Furthermore, the hand-held grip includes a handle cover, an adjustment plate and a guide block. The handle cover is arranged on the outside of the perfusion tube. An adjustment groove connected to the perfusion tube is opened on the top of the handle cover. An adjustment plate is arranged inside the adjustment groove. A guide block is arranged on the top of the adjustment plate. The side of the guide block is fixedly connected to the end of the adjustment wire.

[0013] Furthermore, a push plate is provided at the bottom end of the adjustment plate, and the adjustment plate, the guide block and the push plate are engaged and slidably with the handle sleeve and the perfusion tube.

[0014] Furthermore, a movable plate is provided on the top of the push plate, the middle part of the movable plate is rotatably connected to the push plate, a spring fixedly connected to the push plate is provided on the top surface of one end of the movable plate, and a limit plate is provided on the end of the movable plate away from the spring, and the limit plate is L-shaped.

[0015] Furthermore, the bottom surface of the handle cover is provided with limiting grooves, which are distributed at equal intervals on the bottom surface of the handle cover, and the limiting grooves are engaged and connected with the limiting plates.

[0016] The utility model provides a perfusion device for coronary artery perfusion operation. Compared with the prior art, it has the following beneficial effects:

[0017] The adjusting piece arranged in the adjusting mechanism can provide supporting force for the rotation angle of the adjusting cylinder and the perfusion tube, so that when the adjusting wire pulls the adjusting cylinder to rotate, the adjusting piece can be deformed and react with the adjusting wire, thereby enabling the adjusting cylinder to follow the movement of the adjusting wire and rotate stably, so that the adjusting cylinder drives the perfusion assembly to change the perfusion angle, thereby achieving the purpose of improving the application range of the perfusion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1A schematic structural diagram of a perfusion device for coronary artery perfusion operation according to the utility model is shown;

[0020] Figure 2 The schematic diagram of the structure of the perfusion assembly of the utility model is shown;

[0021] Figure 3 The schematic diagram of the structure of the adjustment mechanism of the utility model is shown;

[0022] Figure 4 A schematic structural diagram of a handheld handle of the utility model is shown;

[0023] Figure 5 A schematic diagram showing the movement of the adjustment plate of the utility model is shown;

[0024] Figure 6 A schematic structural diagram of an existing perfusion device is shown;

[0025] As shown in the figure: 1. perfusion tube; 2. hand grip; 21. handle; 211. adjustment slot; 22. adjustment plate; 23. guide block; 24. push plate; 25. movable plate; 26. limit plate; 27. spring; 3. perfusion assembly; 31. perfusion sleeve; 32. injection head; 33. injection tube; 34. connecting nozzle; 4. adjustment cylinder; 5. adjustment mechanism; 51. limit seat 1; 52. limit seat 2; 53. adjustment sheet; 54. limit block; 55. fixed block; 56. slider; 57. adjustment wire. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are 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. Example 1

[0027] In order to solve the technical problems in the background technology, a perfusion device for coronary artery perfusion operation is provided as follows:

[0028] Combination Figure 1-Figure 4As shown, the utility model provides a perfusion device for coronary artery perfusion operation, comprising a perfusion tube 1, a hand-held handle 2 is provided at the A end of the perfusion tube 1, a perfusion component 3 for auxiliary perfusion is provided at the B end of the perfusion tube 1, an adjusting cylinder 4 connected to the perfusion tube 1 is provided inside the perfusion component 3, the adjusting cylinder 4 is rotatably connected to the perfusion tube 1, and an adjusting mechanism 5 for adjusting the rotation of the adjusting cylinder 4 is provided between the adjusting cylinder 4 and the perfusion tube 1; the adjusting mechanism 5 comprises a limiting seat 1 51, a limiting seat 2 52, an adjusting sheet 53, a limiting block 54, a fixing block 55, a sliding block 56 and an adjusting wire 57, the limiting seat 1 51 is provided on the inner side of the adjusting cylinder 4, the limiting seat 2 52 is provided on the inner side of the perfusion tube 1, an adjusting sheet 53 is provided between the limiting seat 2 52 and the limiting seat 1 51, and the adjusting sheet 53 is an arc-shaped structure , the two ends of the adjusting piece 53 are respectively engaged and slid with the limiting seat 2 52 and the limiting seat 1 51, and the two ends of the adjusting piece 53 are provided with limiting blocks 54, the fixing block 55 is arranged on the inner side of the bottom of the adjusting tube 4, and the bottom surface of the fixing block 55 is provided with an adjusting wire 57, and the slider 56 is arranged inside the perfusion tube 1, and the adjusting wire 57 is engaged and slid with the slider 56; the adjusting piece 53 arranged in the adjusting mechanism 5 can provide a supporting force for the rotation angle of the adjusting tube 4 and the perfusion tube 1, so that when the adjusting wire 57 pulls the adjusting tube 4 to rotate, the adjusting piece 53 can be deformed and react with the adjusting wire 57, so that the adjusting tube 4 can follow the movement of the adjusting wire 57 to rotate stably, so that the adjusting tube 4 drives the perfusion component 3 to change the perfusion angle, so as to achieve the purpose of improving the application range of the perfusion device;

[0029] In this embodiment, the perfusion assembly 3 includes a perfusion sleeve 31 and an injection head 32. The perfusion sleeve 31 is arranged outside the adjustment tube 4 and outside the end B of the perfusion tube 1. The middle part of the perfusion sleeve 31 is an elastic structure. The injection head 32 is arranged on the top of the perfusion sleeve 31. The top of the injection head 32 is provided with a perfusion hole. The elastic structure of the perfusion sleeve 31 facilitates the perfusion assembly 3 to deform following the rotation of the adjustment tube 4.

[0030] In this embodiment, the perfusion component 3 also includes an injection tube 33 and a connecting nozzle 34. One end of the injection tube 33 is connected to the middle of the top end of the regulating tube 4, and the other end of the connecting nozzle 34 is located inside the end of the perfusion tube 1B. The injection tube 33 is communicated with the connecting nozzle 34. Through the setting of the connecting nozzle 34, it is convenient to deliver the myocardial protection fluid that needs to be perfused from the injection tube 33 into the injection head 32. Example 2

[0031] like Figure 1-Figure 5 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0032] In order to enable the perfusion device to achieve the function of stably adjusting the angle, it is necessary to ensure that the adjusting wire 57 can limit the position after moving. Therefore, this embodiment provides the following design:

[0033] The hand-held grip 2 includes a handle 21, an adjustment plate 22 and a guide block 23. The handle 21 is arranged outside the perfusion tube 1. An adjustment groove 211 communicating with the perfusion tube 1 is provided on the top of the handle 21. An adjustment plate 22 is provided inside the adjustment groove 211. A guide block 23 is provided on the top of the adjustment plate 22. The side of the guide block 23 is fixedly connected to the end of the adjustment wire 57. The adjustment plate 22 provided inside the adjustment groove 211 can conveniently drive the guide block 23 to pull the adjustment wire 57.

[0034] In this embodiment, a push plate 24 is provided at the bottom of the adjustment plate 22, and the adjustment plate 22, the guide block 23 and the push plate 24 are engaged and slid with the handle sleeve 21 and the perfusion tube 1; through the engagement and sliding of the adjustment plate 22, the guide block 23 and the push plate 24 with the handle sleeve 21 and the perfusion tube 1, it is convenient for the guide block 23 to stably drive the adjustment wire 57 to move;

[0035] In this embodiment, a movable plate 25 is provided on the top of the push plate 24, and the middle part of the movable plate 25 is rotatably connected to the push plate 24. A spring 27 fixedly connected to the push plate 24 is provided on the top surface of one end of the movable plate 25, and a limit plate 26 is provided on the end of the movable plate 25 away from the spring 27. The limit plate 26 is in an L-shaped structure. The setting of the spring 27 can support the movable plate 25 and keep the movable plate 25 in an inclined state, so that the limit plate 26 can contact and engage with the handle cover 21.

[0036] In this embodiment, limiting grooves are provided on the bottom surface of the handle sleeve 21, and the limiting grooves are evenly spaced on the bottom surface of the handle sleeve 21, and the limiting grooves are engaged with the limiting plate 26; through the limiting grooves evenly spaced on the bottom of the handle sleeve 21, it is possible to engage with the limiting plate 26 to fix the positions of the adjustment plate 22, the guide block 23 and the push plate 24, so as to fix the position of the adjustment wire 57 after pulling the adjustment wire 57 to change the angle of the perfusion assembly 3.

[0037] The working principle and use process of this utility model:

[0038] When using:

[0039] When the angle of the perfusion assembly 3 of the perfusion device needs to be adjusted, the movable plate 25 is pressed to rotate under the push plate 24. After the limit plate 26 is separated from the limit groove, the adjustment plate 22 and the guide block 23 can be moved by fingers. The moving guide block 23 can pull the adjustment wire 57, and the other end of the adjustment wire 57 can pull the adjustment cylinder 4 and the perfusion tube 1 to rotate through the fixed block 55;

[0040] During the adjustment process:

[0041] When the adjusting wire 57 pulls the adjusting cylinder 4 to rotate, the adjusting piece 53 of the elastic structure between the adjusting cylinder 4 and the perfusion tube 1 will provide a reaction force to the rotating adjusting cylinder 4, so that the purpose of maintaining the adjustment angle of the adjusting cylinder 4 can be achieved by resisting the pulling force of the adjusting wire 57. At the same time, the setting of the adjusting piece 53 can also drive the adjusting cylinder 4 to rotate in another direction when the pulling force of the adjusting wire 57 decreases. During the adjustment process of the adjusting cylinder 4, the perfusion sleeve 31 in the perfusion assembly 3 will deform along with the rotation of the adjusting cylinder 4.

[0042] After adjustment is completed:

[0043] When the adjusting tube 4 is adjusted in angle, the movable plate 25 is released, and the spring 27 supports the movable plate 25, so that the limiting plate 26 moves toward the limiting groove and engages with the limiting groove. In this way, the adjusting wire 57 can be fixed to achieve the purpose of limiting the rotation angle of the adjusting tube 4.

Claims

1. A perfusion device for coronary artery perfusion operation, characterized in that: The invention comprises an irrigation tube (1), wherein the A end of the irrigation tube (1) is provided with a hand-held handle (2), the B end of the irrigation tube (1) is provided with an irrigation assembly (3) for assisting irrigation, an adjusting cylinder (4) connected to the irrigation tube (1) is provided inside the irrigation assembly (3), the adjusting cylinder (4) and the irrigation tube (1) are rotationally connected, and an adjusting mechanism (5) for adjusting the rotation of the adjusting cylinder (4) is provided between the adjusting cylinder (4) and the irrigation tube (1); The adjustment mechanism (5) comprises a first limiting seat (51), a second limiting seat (52), an adjustment sheet (53), a limiting block (54), a fixed block (55), a sliding block (56) and an adjustment thread (57). The first limiting seat (51) is arranged on the inner side of the adjustment tube (4), the second limiting seat (52) is arranged on the inner side of the perfusion tube (1), an adjustment sheet (53) is arranged between the second limiting seat (52) and the first limiting seat (51), the adjustment sheet (53) is in an arc-shaped structure, two ends of the adjustment sheet (53) are respectively engaged and slidably engaged with the second limiting seat (52) and the first limiting seat (51), two ends of the adjustment sheet (53) are provided with a limiting block (54), the fixed block (55) is arranged on the inner side of the bottom of the adjustment tube (4), the bottom surface of the fixed block (55) is provided with an adjustment thread (57), the sliding block (56) is arranged inside the perfusion tube (1), and the adjustment thread (57) is engaged and slidably engaged with the sliding block (56).

2. A perfusion device for coronary artery perfusion operation according to claim 1, characterized in that: The perfusion assembly (3) comprises a perfusion sleeve (31) and an injection head (32); the perfusion sleeve (31) is arranged outside the regulating cylinder (4) and outside the B end of the perfusion tube (1); the middle portion of the perfusion sleeve (31) is an elastic structure; the injection head (32) is arranged on the top of the perfusion sleeve (31); and a perfusion hole is opened on the top of the injection head (32).

3. A perfusion device for coronary artery perfusion operation according to claim 2, characterized in that: The perfusion assembly (3) further comprises an injection tube (33) and a communication nozzle (34); one end of the injection tube (33) is connected to the middle of the top end of the regulating cylinder (4); the other end of the communication nozzle (34) is located inside the B end of the perfusion tube (1); the injection tube (33) and the communication nozzle (34) are in communication.

4. A perfusion device for coronary artery perfusion operation according to claim 1, characterized in that: The hand-held grip (2) comprises a grip cover (21), an adjustment plate (22) and a guide block (23); the grip cover (21) is arranged outside the infusion tube (1); an adjustment groove (211) communicating with the infusion tube (1) is provided at the top of the grip cover (21); an adjustment plate (22) is provided inside the adjustment groove (211); a guide block (23) is provided at the top of the adjustment plate (22); and a side surface of the guide block (23) is fixedly connected to an end of the adjustment wire (57).

5. A perfusion device for coronary artery perfusion operation according to claim 4, characterized in that: A push plate (24) is provided at the bottom end of the adjustment plate (22), and the adjustment plate (22), the guide block (23) and the push plate (24) are engaged and slidably engaged with the handle sleeve (21) and the perfusion tube (1).

6. A perfusion device for coronary artery perfusion operation according to claim 5, characterized in that: A movable plate (25) is provided on the top of the push plate (24), the middle portion of the movable plate (25) is rotatably connected to the push plate (24), a spring (27) fixedly connected to the push plate (24) is provided on the top surface of one end of the movable plate (25), and a limit plate (26) is provided on the end of the movable plate (25) facing away from the spring (27), and the limit plate (26) is in an L-shaped structure.

7. A perfusion device for coronary artery perfusion operation according to claim 4, characterized in that: The bottom surface of the handle cover (21) is provided with limiting grooves, the limiting grooves are distributed at equal intervals on the bottom surface of the handle cover (21), and the limiting grooves are engaged and connected with the limiting plate (26).

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