Pump device for cardiovascular surgery

Abstract

The invention relates to the technical field of medical equipment, in particular to a pump device for cardiovascular surgery, which comprises a pump assembly for conveying blood, an adjusting assembly for adjusting the flow rate of the blood and a portable assembly for carrying and wearing the device; the pump assembly comprises a shell and a controller, a driving part is fixedly connected to the inner side wall of the shell, a rotating disc is coaxially and fixedly connected to an output shaft of the driving part, and a sliding plate is in sliding fit with the rotating disc in the circumferential direction; limiting rods are hinged to the side walls of the sliding plates; an eccentric groove allowing the limiting rod to slide is formed in the inner side wall of the shell; the inner bottom wall of the shell is fixedly connected with a trapezoidal sealing table; the structure is complete, and the blood conveying safety can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a pump device used in cardiovascular surgery. Background Art

[0002] Cardiovascular surgery focuses on the prevention, diagnosis and treatment of heart and large vessel diseases. This includes diseases caused by abnormal heart structure (such as congenital heart disease, rheumatic heart disease, cardiomyopathy and valvular heart disease, etc.) and abnormal heart function. For some patients with impaired heart blood delivery, doctors will use pump devices to assist the patient's heart in blood delivery, thereby achieving a therapeutic effect.

[0003] In the actual blood delivery process, centrifugal pumps are often used for blood delivery in the prior art. Although centrifugal pumps can achieve the effect of blood delivery, blood reflux is prone to occur during the delivery process due to the non-occlusive characteristics of centrifugal pumps, which leads to insufficient safety of blood delivery and affects the treatment effect.

[0004] In summary, how to solve the problem that the pump device in the prior art is prone to blood backflow, which in turn leads to insufficient safety of blood delivery and affects the treatment effect has become a difficult problem that needs to be solved urgently in the current field. Therefore, it is necessary to propose a reasonable pump device for cardiovascular surgery. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a pump device for cardiovascular surgery. Through the design of the pump component, blood can be effectively transported. At the same time, through the design of the mechanical structure, the sealing and transporting performance of blood during transportation can be effectively improved, thereby ensuring that blood only moves in one direction and blood backflow will not occur, thereby improving the safety of blood delivery.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a pump device for cardiovascular surgery, including a pump component for conveying blood, a regulating component for regulating blood flow rate and a portable component for making the device portable and wearable.

[0007] The pump assembly includes a shell and a controller. A driving member is fixedly connected to the inner wall of the shell. The output shaft of the driving member is coaxially fixedly connected to a turntable. A sliding plate is slidably matched on the turntable along its circumferential direction. The side walls of the sliding plate are hinged with limit rods. An eccentric groove for sliding the limit rod is opened on the inner wall of the shell. A trapezoidal sealing platform is fixedly connected to the inner bottom wall of the shell. The top of the sealing platform is slidably matched with the outer wall of the turntable. The two side walls of the shell along its length direction are respectively connected with an input duct and an output duct. The controller is used to control the operation of the driving member, and then control the rotation of the turntable.

[0008] The technical principles of the above scheme are as follows:

[0009] The driving member is started by the controller, and the output shaft of the driving member drives the turntable to rotate, and the turntable drives the sliding plate to rotate, and a negative pressure is formed in the shell, and the blood is introduced into the shell from the input catheter, and the sealing platform at the bottom will always fit with the turntable to prevent the blood from flowing from the bottom of the shell; at this time, a sealed space is formed between the inner wall of the shell and the adjacent sliding plates, the blood in the shell is loaded and transported to the output catheter, because the limit rod and the eccentric groove slide together, the limit rod will slide along the eccentric groove, and when the limit rod slides from the upper side of the eccentric groove to the lower side of the eccentric groove, because its lower side radius is smaller than the upper side radius, the sliding plate will slide into the turntable, and the outer side wall of the sliding plate will slide over the top of the sealing platform to avoid mutual obstruction; after the sliding plate passes the sealing platform, the limit rod will slide from the lower side of the eccentric groove to the upper side of the eccentric groove, and the sliding plate will slide outward of the turntable, thereby continuing to transport blood.

[0010] The above scheme has the following beneficial effects:

[0011] 1. In the prior art, centrifugal pumps are often used for blood delivery. Although centrifugal pumps can deliver blood, blood backflow is prone to occur during the delivery process due to the non-occlusive characteristics of centrifugal pumps, which leads to insufficient safety of blood delivery and affects the treatment effect. Compared with the prior art, the present invention utilizes the inner wall of the outer shell and the side wall of the adjacent sliding plate to form a sealed space, and utilizes the sealed space to load and transport blood, which can effectively prevent the backflow of blood during transportation, thereby improving the safety of blood delivery.

[0012] 2. When the pump device in the prior art delivers blood, due to its strong delivery power, the blood flow rate fluctuates greatly, which easily forms blood pulses, causing strong discomfort to the patient and affecting the treatment experience. The present invention, through the design of the outer shell and the sealing platform, can first enter the sealed space formed by the outer shell and the sealing platform for buffering when the blood enters the outer shell, and then transport the blood through the rotation of the sliding plate. Moreover, since the rotation speed of the sliding plate is stable and the distance between adjacent sliding plates is the same, the blood delivery rate and delivery volume are also more stable, thereby greatly reducing the risk of blood pulse formation and improving the patient's comfort and treatment experience.

[0013] 3. The present invention can always maintain the sealing condition of the shell through the design of the sealing platform and the eccentric groove, avoiding the situation where the device cannot normally transport blood due to insufficient sealing, or even blood reflux.

[0014] Furthermore, one end of the output conduit away from the shell is fixedly connected with a spiral pipe section and a fixed pipe section, and one end of the fixed pipe section away from the spiral pipe section is rotatably connected with an elastic telescopic pipe section.

[0015] Beneficial effects: When blood flows through the spiral tube segment, the spiral tube segment can effectively rectify the blood, making the blood flow more smoothly; when the output catheter is implanted in the patient's body, the fixed tube segment provides good support for the implantation of the output catheter; the elastic telescopic tube segment is contracted before implantation, and the smaller telescopic tube segment can reduce the discomfort during the implantation process.

[0016] Furthermore, the adjustment component includes a center rod, which is slidably fitted with a sliding ring, and a first hinged rod is hinged on the side wall of the sliding ring along its circumference, and the end of the first hinged rod away from the sliding ring is hinged to a support rod, and the support rods are fixedly connected to the inner wall of the telescopic pipe section; the side wall of the support rod away from the first hinged rod is hinged to a second hinged rod; the end of the center rod away from the sliding ring is rotatably fitted with a rotating block, and the end of the second hinged rod away from the support rod is hinged to the side wall of the rotating block; the side wall of the sliding ring is fixedly connected with inclined fan blades along its circumference; a plurality of fixed rods are fixedly connected to the end of the center rod away from the rotating block, and the ends of the fixed rods away from the center rod are fixedly connected to the fixed pipe section.

[0017] Beneficial effects: When blood passes through the telescopic tube section, the fan blades will be impacted by the blood, thereby driving the sliding ring to move along the central rod, thereby pushing the first hinged rod to expand outward, and the first hinged rod will push the support rod to expand outward, thereby expanding the diameter of the telescopic tube section; when the blood flow rate decreases, the telescopic tube section will shrink due to its own elastic force, thereby shrinking the support rod, so that the first hinged rod and the second hinged rod are reset, thereby pushing the sliding ring to reset; the blood delivery volume is constant, the larger the diameter, the smaller the blood flow rate, and the smaller the impact on the patient's heart. In this process, the support rod will also drive the second hinged rod to expand, thereby improving the stability of the support rod; and because the fan blades are tilted, the fan blades will also rotate under the drive of the blood, thereby driving the sliding ring to rotate, and the sliding ring will drive the first hinged rod, the support rod, the second hinged rod and the rotating block to rotate, thereby jointly intercepting and crushing the thrombus and reducing the impact of the thrombus on the patient.

[0018] Furthermore, the portable component includes a waist belt, and the outer wall of the shell is fixedly connected to the outer wall of the waist belt; buckles and connecting buckles are fixedly connected at both ends of the waist belt, and the buckles and connecting buckles are detachably connected.

[0019] Beneficial effect: The patient can tie the belt around the waist through the buckle and the connector, so as to carry the device with him / her, thus improving the convenience of treatment.

[0020] Furthermore, a protective cover for protecting the input conduit and the output conduit is symmetrically fixedly connected to the side wall of the shell.

[0021] Beneficial effect: The protective cover can protect the connection between the housing and the input conduit and the output conduit, thereby reducing the risk of bending or even breaking of the connection between the housing and the input conduit and the output conduit.

[0022] Furthermore, a plurality of support rings for supporting the input conduit and the output conduit are fixedly connected to the outer side wall of the waist belt.

[0023] Beneficial effect: The user can insert the input conduit and the output conduit into the support ring, and the support ring can provide position limiting and support for the input conduit and the output conduit.

[0024] Furthermore, the telescopic tube section is made of medical silicone.

[0025] Beneficial effect: The medical silicone has good elasticity, so that the telescopic tube section can expand and contract with the movement of the support rod.

[0026] Furthermore, one end of the sliding plate close to the inner wall of the shell is fixedly connected with a sealing layer.

[0027] Beneficial effects: The sealing layer can make the sliding plate fit more closely with the inner wall of the shell, thereby improving the sealing of the device; at the same time, it reduces the friction between the sliding plate and the inner wall of the shell, thereby increasing the service life of the device.

[0028] Furthermore, a plurality of heating wires are fixedly connected to the inner wall of the waistband, and the controller is used to control the heating temperature of the heating wires.

[0029] Beneficial effects: During the treatment, due to the design of the support ring, the input catheter and the output catheter fit closely with the belt. At this time, the heating temperature of the heating wire is adjusted by the controller, so that the blood maintains a suitable temperature, which can improve the comfort of blood delivery.

[0030] Furthermore, it also includes a monitoring and early warning system; the monitoring and early warning system includes a basic setting module, a data monitoring module and a safety early warning module.

[0031] The basic setting module is used for medical staff to set the target fluid supply rate and warning threshold according to the patient's own blood flow rate, and to set the output power of the driving component according to the target fluid supply rate.

[0032] The data monitoring module is used to monitor the blood flow rate in the input catheter and the output catheter, and judge whether the patient's current blood flow rate is normal according to the blood flow rate in the input catheter. The blood flow rate in the input catheter is proportional to the patient's current blood flow rate. If the blood flow rate in the input catheter is lower than the warning threshold, the data monitoring module will issue a warning instruction to the safety warning module; the data monitoring module is also used to judge whether the device has reached the target fluid supply rate according to the blood flow rate in the output catheter. The blood flow rate in the output catheter is proportional to the target fluid supply rate. If the blood flow rate in the output catheter does not reach the target fluid supply rate, the data monitoring module will issue a drive adjustment instruction to the safety warning module.

[0033] The safety warning module is used to receive the warning instructions issued by the data monitoring module, and issue warning prompts to patients and medical staff in the form of voice broadcasts; the safety warning module is also used to receive the drive adjustment instructions issued by the data monitoring module, and issue adjustment prompts to medical staff in the form of communication information.

[0034] Beneficial effects: Medical staff can use the basic setting module to set the target fluid supply rate and warning threshold according to the patient's blood flow rate, and then adjust the output power of the driver according to the target fluid supply rate, thereby achieving precise control of the fluid supply rate. In this way, the accuracy of the treatment plan can be ensured, which helps to optimize the treatment effect.

[0035] The data monitoring module can detect the blood flow rate in the input catheter and output catheter in real time, and then analyze whether the patient's current blood flow rate is normal and whether the device has reached the target fluid supply rate. When the blood flow rate in the input catheter is lower than the warning threshold, the safety warning module will immediately issue a warning prompt to remind patients and medical staff that there may be risks of poor blood flow or insufficient blood supply. If the blood flow rate in the output catheter does not reach the target fluid supply rate, the safety warning module will issue an adjustment prompt to prompt medical staff to adjust the equipment parameters in time to ensure the effectiveness of treatment.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is an axonometric view of a pump device for cardiovascular surgery according to the present invention.

[0038] Figure 2 The figure is an axonometric view of an output catheter of a pump device for cardiovascular surgery according to the present invention.

[0039] Figure 3 The isometric view of the telescopic tube section of the pump device used in cardiovascular surgery according to the present invention.

[0040] Figure 4 This is an axonometric view of the unfolded regulating assembly of the pump device for cardiovascular surgery according to the present invention.

[0041] Figure 5 The figure is an axonometric cross-sectional view of a pump assembly in a pump device for cardiovascular surgery according to the present invention.

[0042] Figure 6 The figure is an axonometric cross-sectional view of a housing of a pump device for cardiovascular surgery according to the present invention.

[0043] Figure 7 The isometric view of the sliding plate in the pump device for cardiovascular surgery according to the present invention.

[0044] Figure 8 The figure is a side view of the regulating assembly of the pump device for cardiovascular surgery according to the present invention after contraction.

[0045] Fig. 9 The present invention is a flow chart of the monitoring and early warning system used in the pump device for cardiovascular surgery.

[0046] Fig.10 This is a schematic diagram of the implantation and installation of the pump device used in cardiovascular surgery of the present invention.

[0047] The figure marks in the drawings of the specification include: 1. shell; 2. turntable; 3. sliding plate; 4. limit rod; 5. sealing platform; 6. input duct; 7. output duct; 8. spiral pipe section; 9. fixed pipe section; 10. telescopic pipe section; 11. center rod; 12. sliding ring; 13. first hinged rod; 14. support rod; 15. second hinged rod; 16. rotating block; 17. fan blade; 18. fixed rod; 19. belt; 20. protective cover; 21. support ring; 22. sealing layer; 23. motor. DETAILED DESCRIPTION

[0048] The following is further described in detail through specific implementation methods:

[0049] Embodiment 1:

[0050] like Figure 1-8 As shown, a pump device for cardiovascular surgery includes a pump component for conveying blood, a regulating component for regulating the blood flow rate, and a portable component for making the device portable and wearable.

[0051] like Figure 1 , Figure 5 and Figure 6 As shown, the pump assembly includes a housing 1 and a controller. The inner wall of the housing 1 is bolted and fixedly connected with a driving member. The output shaft of the driving member is coaxially bolted and fixedly connected with a turntable 2. A sliding plate 3 is provided on the turntable 2 along its circumferential sliding cooperation; the side walls of the sliding plate 3 are hingedly connected with a limit rod 4; the inner wall of the housing 1 is provided with an eccentric groove for the limit rod 4 to slide; the inner bottom wall of the housing 1 is integrally formed with a trapezoidal sealing platform 5; the top of the sealing platform 5 is slidably cooperated with the outer wall of the turntable 2, and the two side walls of the housing 1 along its length direction are respectively connected with an input conduit 6 and an output conduit 7; the controller is used to control the operation of the driving member, and then control the rotation of the turntable 2. In this embodiment, the driving member is a motor 23.

[0052] like Figure 2As shown, the right end of the output catheter is integrally formed with a spiral tube section 8 and a fixed tube section 9 in sequence, and the right end of the fixed tube section 9 is rotatably connected to the elastic telescopic tube section 10. When blood flows through the spiral tube section 8, the spiral tube section 8 can effectively rectify the blood, making the blood flow more stable; when the output catheter 7 is implanted in the patient's body, the fixed tube section 9 provides good support for the implantation of the output catheter 7; the elastic telescopic tube section 10 is in a contracted shape before implantation, and the small telescopic tube section can reduce the discomfort during the implantation process.

[0053] like Figure 3 , Figure 4 and Figure 8 As shown, the adjustment component includes a center rod 11, on which a sliding ring 12 is slidably fitted, and a first hinged rod 13 is hinged on the side wall of the sliding ring 12 along its circumference, and the first hinged rod 13 is hinged on the end away from the sliding ring 12 with a support rod 14, and the support rods 14 are fixedly bonded to the inner wall of the telescopic pipe section 10, and the side wall of the support rod 14 away from the first hinged rod 13 is hinged with a second hinged rod 15; the center rod 11 is rotatably fitted with a rotating block 16 at one end away from the sliding ring 12, and the second hinged rod 15 is hinged to the side wall of the rotating block 16 at one end away from the support rod 14; the side wall of the sliding ring 12 is fixedly bonded with an inclined fan blade 17 along its circumference; a plurality of fixed rods 18 are fixedly bonded on the side wall of the center rod 11 away from the rotating block 16, and the fixed rods 18 are fixedly bonded to the fixed pipe section 9 at one end away from the center rod 11; the fixed rods 18 can support and limit the center rod 11.

[0054] like Figure 4 As shown, in this embodiment, the first hinge rod 13 and the second hinge rod 15 can only rotate 90°. Figure 4 The first hinge rod 13 and the second hinge rod 15 have reached their maximum rotation strokes, at which time the diameter of the telescopic tube section 10 is the largest.

[0055] like Figure 1 As shown, the portable component includes a waist belt 19, and the outer wall of the housing 1 is fixedly bonded to the outer wall of the waist belt 19; buckles and connecting buckles are fixedly bonded to both ends of the waist belt 19, and the buckles and connecting buckles are detachably connected. The patient can tie the waist belt 19 to the waist through the buckles and connecting buckles, so as to carry the device with him, which improves the convenience of treatment.

[0056] Several heating wires are fixedly bonded to the inner wall of the waistband 19, and the controller is used to control the heating temperature of the heating wires. During treatment, the doctor can adjust the heating temperature of the heating wires through the controller, thereby keeping the blood at a suitable temperature, which can improve the comfort of blood delivery.

[0057] The specific implementation process is as follows:

[0058] by Figure 5For example, after the input catheter 6 and the output catheter 7 are implanted in the patient's body, the doctor starts the motor 23 through the controller, and the output shaft of the motor 23 drives the turntable 2 to rotate clockwise, and the turntable 2 drives the sliding plate 3 to rotate clockwise along the inner wall of the shell 1, and a negative pressure is formed in the shell 1, and the blood is introduced from the input catheter 6 into the inside of the shell 1. The sealing platform 5 at the bottom will always fit with the turntable 2 to prevent blood from flowing from the lower side of the turntable 2; at this time, a sealed space will be formed between adjacent sliding plates 3 and the inner wall of the shell 1, and the blood in the shell 1 will be loaded and transported to the output catheter 7, and then delivered to the patient. heart; due to the sliding cooperation between the limit rod 4 and the eccentric groove, the limit rod 4 will slide along the eccentric groove, and when the limit rod 4 slides from the upper side of the eccentric groove to the lower side of the eccentric groove, since the lower side radius of the eccentric groove is smaller than the upper side radius, the limit rod 4 will drive the sliding plate 3 to gradually slide into the turntable 2, and in this process, the outer side wall of the sliding plate 3 will slide over the top of the sealing platform 5 to avoid mutual obstruction; after the sliding plate 3 passes the sealing platform 5, the limit rod 4 will slide from the lower side of the eccentric groove to the upper side of the eccentric groove, and drive the sliding plate 3 to slide outward from the turntable 2, so that the sliding plate 3 continues to transport blood.

[0059] by Figure 4 For example, before the blood flows to the telescopic tube section 10, the first hinged rod 13 and the second hinged rod 15 are both close to the outer wall of the center rod 11, and the sliding ring 12 is close to the fixed rod 18; when the blood flows to the telescopic tube section 10, the fan blade 17 will be impacted by the blood, thereby driving the sliding ring 12 to move along the right side of the center rod 11, thereby pushing the first hinged rod 13 to expand outward from the center rod 11, and the first hinged rod 13 will push the support rod 14 to expand outward, thereby expanding the diameter of the telescopic tube section 10. The larger the diameter of the telescopic tube section 10, the larger the flow area, the constant blood delivery volume, and the blood flow rate will be reduced, thereby reducing the impact of blood on the patient's heart when flowing into the patient's heart. The impact on the blood is greater; and the greater the blood flow rate, the farther the fan blade 17 moves, the greater the rotation degree of the first hinged rod 13 and the second hinged rod 15, and the larger the diameter of the telescopic tube section 10, so that the reduction effect on the blood flow rate is stronger; when the blood flow rate decreases, the telescopic tube section 10 will shrink due to its own elastic force, and then press the support rod 14 to a certain extent, and then press the first hinged rod 13 and the second hinged rod 15 to reset, and then push the sliding ring 12 to reset, thereby reducing the flow area of ​​the telescopic tube section 10 to a certain extent and increasing the blood flow rate; thereby achieving adaptive adjustment of the blood flow rate and improving the treatment comfort and treatment effect.

[0060] During this process, the support rod 14 will also drive the second hinged rod 15 to unfold, thereby improving the stability of the support rod 14; at the same time, the unfolding of the first hinged rod 13 and the second hinged rod 15 will intercept the blood clots in the blood to a certain extent. When the blood clots collide with the first hinged rod 13 and the second hinged rod 15, their volume will be reduced under the expansion force, thereby reducing the impact of the blood clots on patients.

[0061] Since the fan blades 17 are tilted, the fan blades 17 will also rotate driven by the blood, thereby driving the sliding ring 12 to rotate, and the sliding ring 12 will drive the first hinged rod 13, the support rod 14, the second hinged rod 15 and the rotating block 16 to rotate, thereby jointly intercepting and breaking the thrombus, further reducing the impact of the thrombus on the patient.

[0062] Embodiment 2:

[0063] like Figure 1 As shown, the difference from the above embodiment is that a protective cover 20 for protecting the input conduit 6 and the output conduit 7 is symmetrically fixed and bonded to the side wall of the housing 1 .

[0064] The specific implementation process is as follows: the protective cover 20 can protect the connection between the housing 1 and the input conduit 6 and the output conduit 7, thereby reducing the risk of bending or even breaking of the connection between the housing 1 and the input conduit 6 and the output conduit 7.

[0065] Embodiment 3:

[0066] like Figure 1 As shown, the difference from the above embodiment is that a plurality of support rings 21 for supporting the input conduit 6 and the output conduit 7 are fixedly bonded to the outer side wall of the waist belt 19 .

[0067] The specific implementation process is as follows: the user can insert the input conduit 6 and the output conduit 7 into the support ring 21 , and the support ring 21 can provide position limiting and support for the input conduit 6 and the output conduit 7 .

[0068] Embodiment 4:

[0069] like Figure 2 As shown, the difference from the above embodiment is that the material used to make the telescopic tube section 10 is medical silicone.

[0070] The specific implementation process is as follows: the medical silica gel has good elasticity, so that the telescopic tube section 10 can expand and contract with the movement of the support rod 14.

[0071] Embodiment 5:

[0072] like Figure 7 As shown, the difference from the above embodiment is that a sealing layer 22 is fixedly bonded to one end of the sliding plate 3 close to the inner wall of the housing 1 .

[0073] The specific implementation process is as follows: the sealing layer 22 can make the sliding plate 3 and the inner wall of the shell 1 fit more closely, thereby improving the sealing of the device; at the same time, it reduces the friction between the sliding plate 3 and the inner wall of the shell 1, and improves the service life of the device.

[0074] Embodiment 6:

[0075] like Figure 8 As shown, the difference from the above embodiment is that the present invention also provides a monitoring and early warning system for monitoring blood delivery conditions; the monitoring and early warning system includes a basic setting module, a data monitoring module and a safety early warning module, and each module is signal-connected to each other; each module is signal-connected to the remote control terminal of the medical staff (such as a mobile phone, a tablet and a computer, etc.).

[0076] The specific functions of each module are as follows:

[0077] The basic setting module is used for medical personnel to set the target fluid supply rate and the warning threshold according to the patient's own blood flow rate, and to set the output power of the motor 23 according to the target fluid supply rate.

[0078] The data monitoring module is used to monitor the blood flow rates in the input catheter 6 and the output catheter 7, and to determine whether the patient's current blood flow rate is normal based on the blood flow rate in the input catheter 6. The blood flow rate in the input catheter 6 is proportional to the patient's current blood flow rate. If the blood flow rate in the input catheter 6 is lower than the warning threshold, the data monitoring module will issue a warning instruction to the safety warning module; the data monitoring module is also used to determine whether the device has reached the target fluid supply rate based on the blood flow rate in the output catheter 7. The blood flow rate in the output catheter 7 is proportional to the target fluid supply rate. If the blood flow rate in the output catheter 7 does not reach the target fluid supply rate, the data monitoring module will issue a drive adjustment instruction to the safety warning module.

[0079] The safety warning module is used to receive warning instructions issued by the data monitoring module, and issue warning prompts to patients and medical staff in the form of voice broadcasts; the safety warning module is also used to receive drive adjustment instructions issued by the data monitoring module, and issue adjustment prompts to the medical staff's remote control terminal through communication information.

[0080] For example, assuming that the blood flow rate of the aorta of a normal patient is 0.50m / s, and the blood flow rate of the aorta of the current patient is 0.20m / s, the medical staff will set the target liquid supply rate to 0.30m / s through the remote control terminal, set the output power of the motor 23 to 20w, and the warning threshold to not less than 0.38m / s and not more than 0.52m / s. During the treatment process, assuming that the current blood flow rate in the input catheter 6 is 0.42m / s, the data monitoring module determines that the patient's current blood flow rate is normal; assuming that the current blood flow rate in the input catheter 6 is 0.28m / s, the data monitoring module determines that the patient's current blood flow rate is abnormal, and immediately sends a warning instruction to the safety warning module, and the safety warning module will immediately send a warning prompt to the patient and medical staff in the form of voice broadcast, calling the medical staff to deal with it immediately.

[0081] Through the design of the basic setting module and the data monitoring module, the pertinence of the treatment plan can be ensured and the treatment effect can be improved. Through the design of the safety warning module, medical staff can be reminded in time to improve the timeliness of treatment.

[0082] Embodiment 7:

[0083] like Figure 1 As shown, the housing 1 is fixedly bonded to the outer wall of the waist belt 19, so that the pump assembly can be conveniently carried; the difference from the above embodiment is that, as Fig.10 As shown, in this embodiment, the housing 1 can be made of biocompatible materials, and then implanted into the patient and fixed to the outer wall of the heart using biocompatible technology, the output catheter 7 is connected to the apex of the patient's left ventricle, and the input catheter 6 is connected to the patient's aorta; the convenience of the pump assembly is further improved. Such a design provides patients with a variety of choices and improves the patient's treatment experience.

[0084] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A pump device for cardiovascular surgery, characterized in that: It includes a pump assembly for conveying blood, a regulating assembly for regulating the blood flow rate, and a portable assembly for making the device portable and wearable; The pump assembly comprises a housing (1) and a controller. A driving member is fixedly connected to the inner wall of the housing (1). The output shaft of the driving member is coaxially fixedly connected to a turntable (2). A sliding plate (3) is provided on the turntable (2) to slide along its circumferential direction. The side walls of the sliding plate (3) are hingedly connected to limit rods (4). An eccentric groove for sliding the limit rods (4) is provided on the inner wall of the housing (1). A trapezoidal sealing platform (5) is fixedly connected to the inner bottom wall of the housing (1). The top of the sealing platform (5) is slidably matched with the outer wall of the turntable (2). The two side walls of the housing (1) along its length direction are respectively connected to an input conduit (6) and an output conduit (7). The controller is used to control the operation of the driving member, thereby controlling the rotation of the turntable (2).

2. The pump device for cardiovascular surgery according to claim 1, characterized in that: The end of the output conduit (7) away from the housing (1) is fixedly connected to a spiral pipe section (8) and a fixed pipe section (9), and the end of the fixed pipe section (9) away from the spiral pipe section (8) is rotatably connected to an elastic telescopic pipe section (10).

3. The pump device for cardiovascular surgery according to claim 2, characterized in that: The adjustment assembly comprises a central rod (11), a sliding ring (12) is slidably matched on the central rod (11), a first hinged rod (13) is hingedly connected to the side wall of the sliding ring (12) along its circumferential direction, a support rod (14) is hingedly connected to one end of the first hinged rod (13) away from the sliding ring (12), and the support rod (14) is fixedly connected to the inner wall of the telescopic pipe section (10); a second hinged rod (15) is hingedly connected to the side wall of the support rod (14) away from the first hinged rod (13); One end of the rod (11) away from the sliding ring (12) is rotatably matched with a rotating block (16), and one end of the second hinged rod (15) away from the support rod (14) is hinged to the side wall of the rotating block (16); the side wall of the sliding ring (12) is fixedly connected with an inclined fan blade (17) along its circumference; one end of the central rod (11) away from the rotating block (16) is fixedly connected to a plurality of fixed rods (18), and one end of the fixed rods (18) away from the central rod (11) is fixedly connected to the fixed pipe section (9).

4. The pump device for cardiovascular surgery according to claim 3, characterized in that: The portable component comprises a waist belt (19), and the outer wall of the outer shell (1) is fixedly connected to the outer wall of the waist belt (19); a buckle and a connecting buckle are respectively fixedly connected at both ends of the waist belt (19), and the buckle and the connecting buckle are detachably connected.

5. The pump device for cardiovascular surgery according to claim 4, characterized in that: A protective cover (20) for protecting the input conduit (6) and the output conduit (7) is symmetrically fixedly connected to the side wall of the housing (1).

6. The pump device for cardiovascular surgery according to claim 5, characterized in that: A plurality of support rings (21) for supporting the input conduit (6) and the output conduit (7) are fixedly connected to the outer side wall of the waist belt (19).

7. The pump device for cardiovascular surgery according to claim 6, characterized in that: The material used to prepare the telescopic tube section (10) is medical silica gel.

8. The pump device for cardiovascular surgery according to claim 7, characterized in that: One end of the sliding plate (3) close to the inner wall of the outer shell (1) is fixedly connected with a sealing layer (22).

9. The pump device for cardiovascular surgery according to claim 8, characterized in that A plurality of heating wires are fixedly connected to the inner wall of the waist belt (19), and the controller is used to control the heating temperature of the heating wires.

10. The pump device for cardiovascular surgery according to claim 9, characterized in that It also includes a monitoring and early warning system; the monitoring and early warning system includes a basic setting module, a data monitoring module and a safety early warning module; The basic setting module is used for medical staff to set the target fluid supply rate and warning threshold according to the patient's own blood flow rate, and to set the output power of the driving component according to the target fluid supply rate; The data monitoring module is used to monitor the blood flow rates in the input catheter (6) and the output catheter (7), and to determine whether the patient's current blood flow rate is normal based on the blood flow rate in the input catheter (6). The blood flow rate in the input catheter (6) is proportional to the patient's current blood flow rate. If the blood flow rate in the input catheter (6) is lower than the warning threshold, the data monitoring module will send a warning instruction to the safety warning module. The data monitoring module is also used to determine whether the device has reached a target liquid supply rate based on the blood flow rate in the output catheter (7). The blood flow rate in the output catheter (7) is proportional to the target liquid supply rate. If the blood flow rate in the output catheter (7) does not reach the target liquid supply rate, the data monitoring module will send a drive adjustment instruction to the safety warning module. The safety warning module is used to receive the warning instructions issued by the data monitoring module, and issue warning prompts to patients and medical staff in the form of voice broadcasts; the safety warning module is also used to receive the drive adjustment instructions issued by the data monitoring module, and issue adjustment prompts to medical staff in the form of communication information.

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