Double-ring self-centering taking and feeding device

Abstract

The invention provides a double-ring self-centering taking and conveying device, and relates to the technical field of instruments for inputting media into a human body or conveying the media to the human body, the double-ring self-centering taking and conveying device comprises a first-stage centering device, a magnetic guide rail assembly and a second-stage centering device which are sequentially connected from top to bottom, and the center of the first-stage centering device is movably connected with a heart pump; the heart pump sequentially penetrates through the first-stage centering device, the magnetic guide rail assembly and the second-stage centering device and then makes contact with a pre-installation position, the side portion of the magnetic guide rail assembly is detachably connected with a magnetic pulling assembly, a magnetic fixing ring is connected into the magnetic guide rail assembly, and the magnetic fixing ring and the heart pump are coaxial and detachably connected. The outer circle of the magnetic fixing ring makes contact with the inner side of the magnetic guide rail assembly, and the magnetic fixing ring is magnetically connected with the magnetic pulling assembly. The problem that in the prior art, a device for assisting the heart pump in rapid alignment cannot be provided is solved.

Description

Technical Field

[0001] This application relates to the technical field of instruments for inputting media into or onto the human body, and particularly to a double-ring self-centering picking and placing device. Background Art

[0002] Cardiac pumps play an irreplaceable role in the treatment of end-stage heart failure, acute heart failure, cardiogenic shock, and postoperative recovery of the heart. They can not only prolong the lives of patients, but also significantly improve their quality of life and promote the progress of medical technology. The installation of a cardiac pump requires great care and caution. If the installation of the cardiac pump is offset, it may cause serious secondary harm to the patient. The possible harms are as follows: 1. Compressing the heart or blood vessels, which may exacerbate heart failure symptoms; 2. Causing a slowdown or turbulence in blood flow velocity, which is prone to thrombus formation (such as thrombus in the pump or thrombus in blood vessels), and may trigger pulmonary embolism, stroke, or myocardial infarction; 3. Friction against surrounding tissues (such as ribs, myocardium), resulting in local pain, hematoma, or tissue necrosis; 4. Abrading the blood vessel wall, triggering delayed bleeding or pseudoaneurysm.

[0003] Therefore, during the actual operation, when installing a cardiac pump on a patient's heart, as Figure 8 shown, at least three auxiliary medical staff are required to assist the surgeon using surgical forceps or surgical forceps respectively to complete the installation of the cardiac pump. The purpose is to assist in aligning the cardiac pump with the position where it needs to be installed on the patient's heart, and then aligning the cardiac pump with the installation position to ensure that the cardiac pump is accurately installed at the designated position. However, when placing the cardiac pump at the heart notch position, even with human assistance, eccentricity may occur. At this time, the operation time is often prolonged, resulting in secondary harm to the patient. In addition, if eccentricity is found when placing the cardiac pump at the heart notch position, the placement process needs to be re-operated to ensure that the cardiac pump is placed centered. Therefore, in combination with modern medicine, it is very important to develop a device to assist in aligning the cardiac pump to ensure the accuracy of cardiac pump installation. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a double-ring self-centering picking and placing device, aiming to solve the problem that there is no device in the prior art to assist in quickly aligning the cardiac pump.

[0005] To achieve the above purpose, the embodiments of the present invention adopt the following technical solutions: A double-ring self-centering picking and placing device, comprising: A first centering device, a magnetic guide rail assembly, and a second centering device that are connected in sequence from top to bottom. A heart pump is movably connected to the center of the first centering device. The heart pump passes through the first centering device, the magnetic guide rail assembly, and the second centering device in sequence and then contacts a pre-installed position. A magnetic pulling assembly is detachably connected to the side of the magnetic guide rail assembly. A magnetic fixing ring is connected inside the magnetic guide rail assembly. The magnetic fixing ring is coaxial with the heart pump and is detachably connected. The outer circle of the magnetic fixing ring contacts the inner side of the magnetic guide rail assembly. The magnetic fixing ring is magnetically connected to the magnetic pulling assembly.

[0006] In some embodiments, the magnetic guide rail group includes two first magnetic guide rails and a second non-magnetic guide rail that are arranged in parallel. The bottom ends of the first magnetic guide rails and the bottom ends of the second non-magnetic guide rails are respectively connected to both sides of the upper surface of the second centering device. The top ends of the first magnetic guide rails and the top ends of the second non-magnetic guide rails are respectively connected to both sides of the lower surface of the first centering device.

[0007] In some embodiments, the inside of the second non-magnetic guide rail is hollow to form a return cavity. A wheel disc is connected to the top of the return cavity. A retraction rope is wound around the wheel disc. The movable end of the retraction rope is fixedly connected to the magnetic fixing ring.

[0008] In some embodiments, a non-magnetic disconnector is connected between the bottom of the first magnetic guide rail and the second centering device.

[0009] In some embodiments, the magnetic pulling assembly includes a magnetic connecting rod and a handle connected to one end of the magnetic connecting rod. The other end of the magnetic connecting rod is magnetically connected to the outside of the first magnetic guide rail.

[0010] In some embodiments, the first centering device at least includes an adjustment assembly. Four of the adjustment assemblies are connected end to end and a placement area is formed in the center. The heart pump is located in the placement area. The adjustment assembly at least includes a guiding groove, a limiting arc rod, an arc-shaped adjustment rod, and a sliding block. The limiting arc rod is connected to one side of the guiding groove. The sliding block is slidably connected in the guiding groove. One end of the arc-shaped adjustment rod is rotatably connected to the sliding block and the other end abuts against the heart pump. The four limiting arc rods and the four arc-shaped adjustment rods are both arranged in a circular array. The four guiding grooves are arranged in a cross shape.

[0011] In some embodiments, the first centering device has a falling channel coaxial with it. The inner surface of the falling channel is connected with a damping track.

[0012] In some embodiments, auxiliary ears are connected to the tops of the outsides of the first magnetic guide rail and the second non-magnetic guide rail.

[0013] In some embodiments, a number of magnetic filling pieces are embedded in the first magnetic guide rail.

[0014] In some embodiments, the secondary centering device is of a transparent structure and is provided with an operation observation opening thereon.

[0015] Based on the above technical features, the beneficial effects of the present application are as follows: A double-ring self-centering picking and placing device provided by the present application uses a primary centering device to limit the initial state when the heart pump is pumped into the device, so that the heart pump can correspond to the pre-installation position in the initial state; the provided secondary centering device contacts the surface of the patient's heart and corresponds to the pre-installation position, and is used to limit the final state when the heart pump is sent out of the device, so that the heart can directly enter the pre-installation position in a state aligned with the pre-installation position when leaving the device; the provided magnetic pulling component is used to drive the magnetic fixing ring, and then drive the heart pump, especially to move downward slowly. When reaching the lower end position of the magnetic guide rail component, the heart pump is pushed out of the magnetic fixing ring and enters the secondary centering device, which is used to reduce the falling speed of the heart pump and avoid secondary damage to the patient's heart caused by too fast a speed. On the other hand, compared with the prior art that requires re-operating the placement process of the heart pump from the beginning, when the magnetic fixing ring drives the heart pump to move in the magnetic guide rail component, if the medical staff finds that the movement path of the heart pump deviates from the pre-installation position, they can timely control the magnetic pulling component to drive the magnetic fixing ring and the heart pump to move upward, so as to timely adjust the entire device and the falling path of the heart pump. The operation method of this device can save more time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is the actual operation mode of the prior art auxiliary heart pump; Figure 2 It is the structural schematic diagram of the device provided by the present application; Figure 3 It is the side view of the device provided by the present application; Figure 4 It is the structural schematic diagram of the magnetic guide rail component in the device provided by the present application; Figure 5 It is the structural schematic diagram of the primary centering device in the device provided by the present application; Figure 6 It is the structural schematic diagram of the magnetic fixing ring in the device provided by the present application; Figure 7Provide the usage status diagram of the device for this application; Figure 8 Provide the usage structure diagram of the magnetic guide rail assembly in the device for this application.

[0018] In the figure: 1 - heart pump; 2 - primary centering device; 21 - guiding groove; 22 - limiting arc rod; 23 - arc adjusting rod; 24 - sliding block; 25 - placement area; 26 - rotating shaft; 27 - falling channel; 3 - magnetic pulling assembly; 31 - handle; 32 - magnetic connecting rod; 4 - non-magnetic disconnector; 5 - secondary centering device; 6 - operation observation port; 7 - magnetic guide rail assembly; 71 - first magnetic guide rail; 711 - magnetic filling sheet; 72 - second non-magnetic guide rail; 721 - wheel disc; 722 - retracting rope; 723 - return cavity; 8 - damping track; 9 - auxiliary ear; 10 - magnetic fixing ring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] Embodiment 1

[0021] Please refer to Figures 1 - 8 , this embodiment provides a double-ring self-centering picking and sending device, which includes: a primary centering device 2, a magnetic guide rail assembly 7, and a secondary centering device 5 connected in sequence from top to bottom. A heart pump 1 is movably connected to the center of the primary centering device 2. The heart pump 1 passes through the primary centering device 2, the magnetic guide rail assembly 7, and the secondary centering device 5 in sequence and then contacts the pre-installation position. A magnetic pulling assembly 3 is detachably connected to the side of the magnetic guide rail assembly 7. A magnetic fixing ring 10 is connected inside the magnetic guide rail assembly 7. The magnetic fixing ring 10 is coaxial with the heart pump 1 and is detachably connected. The outer circle of the magnetic fixing ring 10 contacts the inner side of the magnetic guide rail assembly 7. The magnetic fixing ring 10 is magnetically connected to the magnetic pulling assembly 3.

[0022] It should be noted that a double-ring self-centering picking and placing device provided in this embodiment is provided with a primary centering device 2, a magnetic guide rail assembly 7, a secondary centering device 5, a magnetic pulling assembly 3, and a magnetic fixing ring 10. The primary centering device 2 is used to limit the initial state when the heart pump 1 is sent into this device, so that the heart pump 1 can correspond to the pre-installation position in the initial state, realizing the primary centering function; the provided secondary centering device 5 contacts the surface of the patient's heart and corresponds to the pre-installation position. The secondary centering device 5 is used to limit the final state when the heart pump 1 is sent out of this device, so that the heart can directly enter the pre-installation position in a state aligned with the pre-installation position when leaving this device, that is, realizing the secondary centering function; the magnetic guide rail assembly 7 is used to connect the path between the primary centering device 2 and the secondary centering device 5, and at the same time limit the falling path of the heart pump 1, ensuring that the heart pump 1 is still in a state corresponding to the pre-installation position when entering the secondary centering device 5; the provided magnetic fixing ring 10 is used to connect the heart pump 1 sent out from the primary centering device 2 and connect the heart pump 1; the provided magnetic pulling assembly 3 is used to drive the magnetic fixing ring 10, and then drive the heart pump 1 to move slowly downward, especially. When reaching the lower end position of the magnetic guide rail assembly 7, the heart pump 1 is manually pushed out of the magnetic fixing ring 10 to enter the secondary centering device 5 in a standard posture, which is used to reduce the falling speed of the heart pump 1 and avoid secondary injury to the patient's heart caused by too fast a speed. This standard posture is the posture that can directly and accurately enter the pre-installation position. On the other hand, when the magnetic fixing ring 10 drives the heart pump 1 to move in the magnetic guide rail assembly, when medical staff find that the movement path of the heart pump 1 deviates from the pre-installation position, they can timely control the magnetic pulling assembly 3 to drive the magnetic fixing ring 10 and the heart pump 1 to move upward, and then timely adjust the entire device and the falling path of the heart pump 1. Compared with the prior art that requires re-operating the placement process of the heart pump 1 from the beginning, the operation method of the device provided in this embodiment can save time. This embodiment solves the problem in the prior art that there is no device that can assist the heart pump 1 to be quickly aligned.

[0023] It should be noted that before using this device, corresponding disinfection and sterilization operations need to be carried out to ensure the safety of contact use.

[0024] Embodiment 2

[0025] Please refer to Figures 1 - 8, on the basis of the first embodiment, this embodiment provides a double-ring self-centering picking and placing device, specifically including: The magnetic guide rail group includes two first magnetic guide rails 71 and a second non-magnetic guide rail 72 arranged in parallel. The bottom ends of the first magnetic guide rails 71 and the bottom end of the second non-magnetic guide rail 72 are respectively connected to both sides of the upper surface of the secondary centering device 5, and the top ends of the first magnetic guide rails 71 and the top end of the second non-magnetic guide rail 72 are respectively connected to both sides of the lower surface of the primary centering device 2. The provided first magnetic guide rail 71 is used to achieve magnetic connection with the magnetic fixing ring 10 and the magnetic pulling assembly 3. After the heart pump 1 is detached from the magnetic fixing ring 10 and enters the secondary centering device 5, the provided second non-magnetic guide rail 72 is used to help the magnetic fixing ring 10 return towards the primary centering device 2 for direct use next time.

[0026] In some embodiments, the second non-magnetic guide rail 72 has a hollow interior to form a return cavity 723. A wheel disc 721 is connected to the top of the return cavity 723, and a retraction rope 722 is wound around the wheel disc 721. The movable end of the retraction rope 722 is fixedly connected to the magnetic fixing ring 10. A non-magnetic disconnector 4 is connected between the bottom of the first magnetic guide rail 71 and the secondary centering device 5. It should be noted that the magnetic pulling assembly 3 and the outer side of the first magnetic guide rail 71 are magnetically connected. The provided non-magnetic disconnector 4 is used to cut off the magnetism between the first magnetic guide rail 71 and the magnetic fixing ring 10. The specific process is as follows: The magnetic pulling assembly 3 moves downward along the first magnetic guide rail 71 to the bottom end of the first magnetic guide rail 71. At this time, it drives the magnetic fixing ring 10 and the heart pump 1 to move downward to a position above the secondary centering device 5. The inner wall of the magnetic fixing ring 10 is in close contact with the outer wall of the heart pump 1 to ensure that the heart pump 1 does not fall during the falling process of the magnetic fixing ring 10. Then, after manually pushing the heart pump 1 out of the magnetic fixing ring 10, the magnetic pulling assembly 3 is further moved downward. As Figure 1 shown, the outer diameter of the non-magnetic disconnector 4 gradually increases from top to bottom and the bottom outer circle extends beyond the outer surface area of the first magnetic guide rail 71. Since the non-magnetic disconnector 4 has no magnetism, the magnetism between the magnetic pulling assembly 3 and the first magnetic guide rail 71 gradually decreases until they can no longer be in contact, that is, the magnetic pulling assembly 3 and the first magnetic guide rail 71 are in a separated state. It should be noted that the wheel disc 721 can achieve automatic rotation, and then gradually wind up the retraction rope 722. When the retraction rope 722 is wound up, it drives the magnetic fixing ring 10 to move upward to the initial position, that is, the top end position of the first magnetic guide rail 71. It should be noted that to ensure the smooth progress of the downward transportation process of the heart pump 1, the magnetic force generated between the first magnetic guide rail 71, the magnetic pulling assembly 3, and the magnetic fixing ring 10 is less than the pulling force exerted by the retraction rope 722 on the magnetic fixing ring 10. This embodiment can more accurately and quickly send the heart pump 1 to the pre-installation position in the patient's heart and can also automatically restore the initial state of the device.

[0027] In some embodiments, the magnetic pulling assembly 3 includes a magnetic connecting rod 32 and a handle 31 connected to one end of the magnetic connecting rod 32. The other end of the magnetic connecting rod 32 is magnetically connected to the outer side of the first magnetic guide rail 71. The magnetic connecting rod 32 provides magnetic force for the magnetic connection between the first magnetic guide rail 71 and the magnetic pulling assembly 3 and provides an operation assistance space, and the handle 31 is used to provide a gripping point for the operator to push the magnetic pulling assembly 3 to move up and down.

[0028] In some embodiments, the primary centering device 2 at least includes an adjusting assembly. The four adjusting assemblies are connected end to end and form a placement area 25 at the center. The heart pump 1 is located within the placement area 25. The adjusting assembly at least includes a guiding groove 21, a limiting arc rod 22, an arc-shaped adjusting rod 23, and a sliding block 24. The limiting arc rod 22 is connected to one side of the guiding groove 21. The sliding block 24 is slidably connected within the guiding groove 21. One end of the arc-shaped adjusting rod 23 is rotatably connected to the sliding block 24 and the other end abuts against the heart pump 1. The four limiting arc rods 22 and the four arc-shaped adjusting rods 23 are both arranged in an annular array, and the four guiding grooves 21 are arranged in a cross shape. The primary centering device 2 has a falling channel 27 coaxial with it, and a damping track 8 is connected to the inner surface of the falling channel 27. It should be noted that the four limiting arc rods 22 achieve the annular closure of the entire primary centering device 2. The plurality of arc-shaped adjusting rods 23 provided are used to clamp the heart pump 1 to prevent it from suddenly falling. Specifically, the sliding block 24 automatically reciprocates within the guiding groove 21. In the unused state, a part of the end of the arc-shaped adjusting rod 23 is located within the placement area 25. When the heart pump 1 needs to be placed into the placement area 25, the doctor holds the heart pump 1 by hand, aligns the heart pump 1 with the placement area 25, and then applies a relatively small downward force to the heart pump 1. At this time, the end of the arc-shaped adjusting rod 23 located within the placement area 25 is pushed out. After the heart pump 1 enters the placement area 25, the arc-shaped adjusting rod 23 automatically moves closer to the outer surface of the heart pump 1 and clamps it. When the heart pump 1 needs to be moved closer to the pre-installation position, a downward force is applied to the heart pump 1 to make it move downward. The damping track 8 provided is used to prevent the heart pump 1 from falling due to excessive pushing force. Optionally, a plurality of damping tracks 8 are spaced apart within the falling channel 27. Optionally, the secondary centering device 5 is provided with a delivery channel coaxial with it.

[0029] In some embodiments, auxiliary ears 9 are connected to the tops of the outer sides of the first magnetic guide rail 71 and the second non-magnetic guide rail 72. The auxiliary ears 9 provided are used to provide a gripping point for the auxiliary staff to ensure that the falling point of the heart pump 1 is always relative to the pre-installation position.

[0030] In some embodiments, a plurality of magnetic filling sheets 711 are embedded in the first magnetic guide rail 71. The magnetic filling sheets 711 provided provide magnetism for the first magnetic guide rail 71.

[0031] In some embodiments, the secondary centering device 5 is of a transparent structure and is provided with an operation observation port 6 thereon. The transparent structure facilitates the doctor to observe the falling situation of the heart pump 1, and the operation observation port 6 provides an access for the doctor to perform corresponding operations on the lower position of the device.

[0032] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an 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 double-ring self-centering pick-and-place device, characterized in that, Including: A primary centering device (2), a magnetic guide rail assembly (7), and a secondary centering device (5) connected in sequence from top to bottom. A heart pump (1) is movably connected to the center of the primary centering device (2). The heart pump (1) passes through the primary centering device (2), the magnetic guide rail assembly (7), and the secondary centering device (5) in sequence and then contacts the pre-installation position. A magnetic pulling assembly (3) is detachably connected to the side of the magnetic guide rail assembly (7). A magnetic fixing ring (10) is connected inside the magnetic guide rail assembly (7). The magnetic fixing ring (10) is coaxial with the heart pump (1) and is detachably connected. The outer circle of the magnetic fixing ring (10) contacts the inner side of the magnetic guide rail assembly (7). The magnetic fixing ring (10) is magnetically connected to the magnetic pulling assembly (3).

2. The device according to claim 1, wherein The magnetic guide rail group includes two first magnetic guide rails (71) and a second non-magnetic guide rail (72) arranged in parallel. The bottom ends of the first magnetic guide rails (71) and the bottom ends of the second non-magnetic guide rails (72) are respectively connected to both sides of the upper surface of the secondary centering device (5). The top ends of the first magnetic guide rails (71) and the top ends of the second non-magnetic guide rails (72) are respectively connected to both sides of the lower surface of the primary centering device (2).

3. The device according to claim 2, wherein The interior of the second non-magnetic guide rail (72) is hollow to form a return cavity (723). A wheel disc (721) is connected to the top of the return cavity (723). A retraction rope (722) is wound around the wheel disc (721). The movable end of the retraction rope (722) is fixedly connected to the magnetic fixing ring (10).

4. The device according to claim 3, characterized in that, A non-magnetic disconnector (4) is connected between the bottom of the first magnetic guide rail (71) and the secondary centering device (5).

5. The device according to claim 2, characterized in that, The magnetic pulling assembly (3) includes a magnetic connecting rod (32) and a handle (31) connected to one end of the magnetic connecting rod (32). The other end of the magnetic connecting rod (32) is magnetically connected to the outer side of the first magnetic guide rail (71).

6. The device according to claim 1, characterized in that, The primary centering device (2) at least includes an adjusting assembly. Four adjusting assemblies are connected end to end and a placement area (25) is formed in the center. The heart pump (1) is located in the placement area (25). The adjusting assembly at least includes a guiding groove (21), a limiting arc rod (22), an arc-shaped adjusting rod (23), and a sliding block (24). The limiting arc rod (22) is connected to one side of the guiding groove (21). The sliding block (24) is slidably connected in the guiding groove (21). One end of the arc-shaped adjusting rod (23) is rotatably connected to the sliding block (24) and the other end abuts against the heart pump (1). The four limiting arc rods (22) and the four arc-shaped adjusting rods (23) are both arranged in an annular array. The four guiding grooves (21) are arranged in a cross shape.

7. The device according to claim 6, characterized in that, The primary centering device (2) has a falling channel (27) coaxial with it. The inner surface of the falling channel (27) is connected with a damping track (8).

8. The device according to claim 2, characterized in that, Auxiliary ears (9) are connected to the tops of the outer sides of the first magnetic guide rail (71) and the second non-magnetic guide rail (72).

9. The device according to claim 2, characterized in that, A number of magnetic filling sheets (711) are embedded in the first magnetic guide rail (71).

10. The device according to claim 1, characterized in that, The secondary centering device (5) is of a transparent structure and is provided with an operation observation port (6) thereon.

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