A double-ring self-centering pick-up and delivery device

Abstract

The present application provides a dual-ring self-centering pickup and delivery device, which relates to the technical field of instruments for delivering media into or onto the human body. The device comprises a primary centering device, a magnetic guide rail assembly, and a secondary centering device, which are sequentially connected from top to bottom. The primary centering device is movably connected to a heart pump at its center. The heart pump sequentially passes through the primary centering device, the magnetic guide rail assembly, and the secondary centering device and contacts a pre-installed position. The side of the magnetic guide rail assembly is detachably connected to a magnetic pull assembly. The magnetic guide rail assembly is internally connected to a magnetic fixing ring, which is coaxial with the heart pump and detachably connected. The outer circle of the magnetic fixing ring contacts the inner side of the magnetic guide rail assembly, and the magnetic fixing ring is magnetically connected to the magnetic pull assembly. The present application solves the problem in the prior art of being unable to provide a device to assist in rapid alignment of the heart pump.

Description

Technical Field

[0001] The present application relates to the technical field of devices for delivering media into or onto the human body, and in particular to a double-ring self-centering delivery device. Background Art

[0002] Heart pumps play an irreplaceable role in the treatment of end-stage heart failure, acute heart failure, cardiogenic shock, and post-cardiac recovery. They not only prolong patients' lives, but also significantly improve their quality of life and promote the advancement of medical technology. The installation of heart pumps requires extreme caution and care. If the installation of the heart pump is offset, it may cause serious secondary injuries to the patient. Possible injuries include:

[0003] 1. Compression of the heart or blood vessels may aggravate the symptoms of heart failure;

[0004] 2. It causes blood flow to slow down or become turbulent, which can easily lead to thrombosis (such as thrombosis in the pump or blood vessels), and may cause pulmonary embolism, stroke or myocardial infarction;

[0005] 3. Friction of surrounding tissues (such as ribs, myocardium), causing local pain, hematoma or tissue necrosis;

[0006] 4. Wear out the blood vessel wall, causing delayed bleeding or pseudoaneurysm.

[0007] Therefore, during the actual operation, when the heart pump is installed on the patient's heart, Figure 8 As shown, at least three auxiliary medical staff are required to use surgical forceps or tweezers to assist the surgeon in completing the installation of the heart pump. The purpose is to assist in aligning the heart pump with the position where the patient's heart needs to be installed, and then align the heart pump with the installation position to ensure that the heart pump is accurately installed in the designated position. However, when placing the heart pump at the heart notch position, even with human assistance, eccentricity may occur, which often prolongs the duration of the operation and causes secondary harm to the patient. In addition, when the heart pump is placed at the heart notch position and is found to be eccentric, the placement process needs to be repeated to ensure that the heart pump is placed centered. Therefore, in combination with modern medicine, it is very important to develop a device that assists in aligning the heart pump to ensure the accuracy of the heart pump installation. Summary of the Invention

[0008] In view of this, the purpose of this application is to provide a dual-ring self-centering pick-up and delivery device, which aims to solve the problem in the prior art that there is no device that can assist the heart pump in rapid alignment.

[0009] To achieve the above objectives, the embodiment of the present invention adopts the following technical solution: a double-ring self-centering pick-up and delivery device, comprising:

[0010] The first-level centering device, the magnetic guide rail assembly and the second-level centering device are connected in sequence from top to bottom. The center of the first-level centering device is movably connected to a heart pump. The heart pump passes through the first-level centering device, the magnetic guide rail assembly and the second-level centering device in sequence and contacts the pre-installed position. The side of the magnetic guide rail assembly is detachably connected to a magnetic pulling assembly. The magnetic guide rail assembly is internally connected to a magnetic fixing ring. 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.

[0011] In some embodiments, the magnetic guide rail group includes two parallel first magnetic guide rails and a second non-magnetic guide rail, the bottom end of the first magnetic guide rail and the bottom end of the second non-magnetic guide rail are respectively connected to both sides of the upper surface of the secondary centering device, and the top end of the first magnetic guide rail and the top end of the second non-magnetic guide rail are respectively connected to both sides of the lower surface of the primary centering device.

[0012] In some embodiments, the interior of the second non-magnetic guide rail is hollow to form a return cavity, the top of the return cavity is connected to a wheel, a retraction rope is wound around the wheel, and the movable end of the retraction rope is fixedly connected to the magnetic fixing ring.

[0013] In some embodiments, a non-magnetic decoupler is connected between the bottom of the first magnetic guide rail and the secondary centering device.

[0014] In some embodiments, the magnetic pulling assembly includes a magnetic connecting rod and a handle connected to one end of the magnetic connecting rod, and the other end of the magnetic connecting rod is magnetically connected to the outer side of the first magnetic guide rail.

[0015] In some embodiments, the first-stage centerer includes at least an adjustment component, four of the adjustment components are connected end to end and form a placement area in the center, and the heart pump is located in the placement area; the adjustment component includes at least a guide 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 guide groove, the sliding block is slidably connected in the guide 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 all in a ring array, and the four guide grooves are arranged in a cross shape.

[0016] In some embodiments, the primary centralizer has a coaxial falling channel, and the inner surface of the falling channel is connected to a damping track.

[0017] In some embodiments, auxiliary ears are connected to the top of the outer sides of the first magnetic guide rail and the second non-magnetic guide rail.

[0018] In some embodiments, a plurality of magnetic filling pieces are embedded in the first magnetic guide rail.

[0019] In some embodiments, the secondary centering device is a transparent structure and has an operation observation port opened thereon.

[0020] According to the above technical features, the beneficial effects of the present application are as follows: the present application provides a dual-ring self-centering picking and delivering device, which uses a first-level centering device to limit the initial state of the heart pump when it is delivered into the device, so that the heart pump can correspond to the pre-installed position in the initial state; the set second-level centering device is in contact with the surface of the patient's heart and corresponds to the pre-installed position, which is used to limit the final state of the heart pump when it is delivered out of the device, so that the heart can directly enter the pre-installed position in a state aligned with the pre-installed position after leaving the device; the set magnetic pulling component is used to drive the magnetic fixing ring, and then drive the heart pump to move slowly, especially downward, when it reaches the magnetic guide rail When the component is at the lower end, 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 due to excessive speed. On the other hand, compared with the existing technology, it is necessary to re-operate 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, when the medical staff finds that the movement path of the heart pump deviates from the pre-installed position, they can promptly control the magnetic pulling component to drive the magnetic fixing ring and the heart pump upward, and then make timely adjustments to 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

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 The actual operation mode of the existing technology auxiliary heart pump;

[0023] Figure 2 Provide a schematic diagram of the structure of the device for this application;

[0024] Figure 3 A side view of the device is provided for this application;

[0025] Figure 4 A schematic diagram of the structure of the magnetic guide rail assembly in the device is provided for this application;

[0026] Figure 5 Provide a structural diagram of the first-level centering device in this application;

[0027] Figure 6 Provide a schematic structural diagram of the magnetic fixing ring in the device for this application;

[0028] Figure 7 Provide a usage status diagram of the device for this application;

[0029] Figure 8 Provides a structural diagram of the use of a magnetic guide rail assembly in the device for this application.

[0030] In the figure: 1-heart pump; 2-first-stage centering device; 21-guide groove; 22-limiting arc rod; 23-arc-shaped adjustment 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-second-stage centering device; 6-operation observation port; 7-magnetic guide rail assembly; 71-first magnetic guide rail; 711-magnetic filling piece; 72-second non-magnetic guide rail; 721-wheel; 722-retraction rope; 723-return chamber; 8-damping track; 9-auxiliary ear; 10-magnetic fixing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] Example 1

[0033] Please refer to Figures 1-8 , this embodiment provides a double-ring self-centering picking and delivering device, which includes: a first-level centering device 2, a magnetic guide rail assembly 7 and a second-level centering device 5 connected in sequence from top to bottom, the center of the first-level centering device 2 is movably connected to a heart pump 1, and the heart pump 1 passes through the first-level centering device 2, the magnetic guide rail assembly 7 and the second-level centering device 5 in sequence and contacts the pre-installed position, the side of the magnetic guide rail assembly 7 is detachably connected to a magnetic pulling assembly 3, and 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, and the magnetic fixing ring 10 is magnetically connected to the magnetic pulling assembly 3.

[0034] It is worth noting that the present embodiment provides a dual-ring self-centering taking and delivering device, which 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 of the heart pump 1 when it is delivered into the present device, so that the heart pump 1 can correspond to the pre-installed position in the initial state, thereby achieving a primary centering effect; the secondary centering device 5 is provided to contact the surface of the patient's heart and corresponds to the pre-installed position, and the secondary centering device 5 is used to limit the final state of the heart pump 1 when it is delivered out of the present device, so that the heart can directly enter the pre-installed position in a state aligned with the pre-installed position after leaving the present device, thereby achieving a secondary centering effect; 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, thereby ensuring that the heart pump 1 is still in a state corresponding to the pre-installed position when entering the secondary centering device 5; the magnetic fixing ring 10 is provided to connect the heart pump 1 from the primary centering device 2 to the secondary centering device 5. 2 delivers the heart pump 1 and connects it. The magnetic pull assembly 3 is provided to drive the magnetic retaining ring 10, and thereby the heart pump 1, particularly to move slowly downward. When it reaches the lower end of the magnetic guide rail assembly 7, the heart pump 1 is manually pushed out of the magnetic retaining ring 10, allowing it to enter the secondary centering device 5 in a standard posture, thereby reducing the speed of the heart pump 1's descent and preventing secondary damage to the patient's heart caused by excessive speed. This standard posture allows it to directly and accurately enter the pre-installed position. On the other hand, when the magnetic retaining ring 10 drives the heart pump 1 to move in the magnetic guide rail assembly, if medical personnel discover that the movement path of the heart pump 1 deviates from the pre-installed position, they can promptly control the magnetic pull assembly 3 to cause the magnetic retaining ring 10 and the heart pump 1 to move upward, thereby promptly adjusting the entire device and the heart pump 1's descent path. Compared to the prior art, which requires the heart pump 1 placement process to be repeated from the beginning, the operating method of the device provided in this embodiment saves time. This embodiment solves the problem of the prior art lacking a device to assist in the rapid alignment of the heart pump 1.

[0035] It should be noted that this device needs to be disinfected and sterilized before use to ensure safety during contact use.

[0036] Example 2

[0037] Please refer to Figures 1-8Based on the first embodiment, this embodiment provides a dual-ring self-centering pick-up and delivery device, specifically comprising: a magnetic guide rail assembly including two parallel, first magnetic guide rails 71 and second non-magnetic guide rails 72, the bottom ends of the first magnetic guide rails 71 and the bottom ends of the second non-magnetic guide rails 72 being connected to either side of the upper surface of the secondary centering device 5, respectively; and the top ends of the first magnetic guide rails 71 and the second non-magnetic guide rails 72 being connected to either side of the lower surface of the primary centering device 2, respectively. The first magnetic guide rails 71 are used to achieve a magnetic connection with the magnetic retaining ring 10 and the magnetic pulling assembly 3. After the heart pump 1 detaches from the magnetic retaining ring 10 and enters the secondary centering device 5, the second non-magnetic guide rails 72 are used to help the magnetic retaining ring 10 return toward the primary centering device 2 so that it can be used directly the next time.

[0038] In some embodiments, the second non-magnetic guide rail 72 is hollowed out to form a return chamber 723. A wheel disc 721 is connected to the top of the return chamber 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. 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 component 3 is magnetically connected to the outer side of the first magnetic guide rail 71, and the non-magnetic disconnector 4 is provided to cut off the magnetism between the first magnetic guide rail 71 and the magnetic fixing ring 10. The specific process is that the magnetic pulling component 3 moves downward along the first magnetic guide rail 71 to the bottom end of the first magnetic guide rail 71, and at this time, the magnetic fixing ring 10 and the heart pump 1 are driven to move downward to the position above the secondary centering device 5. The inner wall of the magnetic fixing ring 10 is tightly fitted with the outer wall of the heart pump 1 to ensure that the heart pump 1 will not fall off during the falling process of the magnetic fixing ring 10. Then, after the heart pump 1 is manually pushed out of the magnetic fixing ring 10, the magnetic pulling component 3 continues to move downward. Figure 1 As shown, the outer diameter of the non-magnetic disconnector 4 increases from top to bottom, and the outer diameter of the bottom portion extends beyond the outer surface of the first magnetic guide rail 71. Since the non-magnetic disconnector 4 is non-magnetic, the magnetism between the magnetic pull assembly 3 and the first magnetic guide rail 71 gradually decreases until they can no longer maintain contact, i.e., the magnetic pull assembly 3 and the first magnetic guide rail 71 are separated. It should be noted that the wheel 721 can automatically rotate, thereby gradually retracting the retraction cord 722. As the retraction cord 722 is retracted, it drives the magnetic retaining ring 10 upward to its initial position, i.e., the top position of the first magnetic guide rail 71. It should be noted that to ensure smooth downward transportation of the heart pump 1, the magnetic force generated between the first magnetic guide rail 71, the magnetic pull assembly 3, and the magnetic retaining ring 10 is less than the tension exerted by the retraction cord 722 on the magnetic retaining ring 10. This embodiment enables more accurate and rapid delivery of the heart pump 1 to the pre-installed position in the patient's heart and also enables automatic restoration of the device to its initial state.

[0039] In some embodiments, the magnetic pulling assembly 3 includes a magnetic link 32 and a handle 31 connected to one end of the magnetic link 32. The other end of the magnetic link 32 is magnetically connected to the outer side of the first magnetic guide rail 71. The magnetic link 32 provides magnetic force for the magnetic connection between the first magnetic guide rail 71 and the magnetic pulling assembly 3 and provides an auxiliary operating space. The handle 31 provides a gripping point for the operator to push the magnetic pulling assembly 3 up and down.

[0040] In some embodiments, the primary centering device 2 includes at least one adjustment assembly, wherein four adjustment assemblies are connected end to end and form a placement area 25 in the center, and the heart pump 1 is located in the placement area 25; the adjustment assembly includes at least a guide groove 21, a limit arc rod 22, an arc-shaped adjustment rod 23, and a sliding block 24. The limit arc rod 22 is connected to one side of the guide groove 21, and the sliding block 24 is slidably connected in the guide groove 21. One end of the arc-shaped adjustment rod 23 is rotatably connected to the sliding block 24 and the other end abuts the heart pump 1; the four limit arc rods 22 and the four arc-shaped adjustment rods 23 are arranged in an annular array, and the four guide grooves 21 are arranged in a cross shape. The primary centering device 2 has a coaxial falling channel 27, and the inner surface of the falling channel 27 is connected to the damping track 8. It is worth noting that the four limiting arc rods 22 realize the annular closure of the entire first-level centering device 2, and the multiple arc-shaped adjustment rods 23 are used to clamp the heart pump 1 to prevent it from falling suddenly. In detail, the sliding block 24 automatically slides back and forth in the guide groove 21. When not in use, a part of the end of the arc-shaped adjustment rod 23 is located in the placement area 25. When the heart pump 1 needs to be placed in the placement area 25, the doctor holds the heart pump 1, aligns the heart pump 1 with the placement area 25, and then applies a smaller force downward to the heart pump 1. At this time, the end of the arc-shaped adjustment rod 23 in the placement area 25 is squeezed out. After the heart pump 1 enters the placement area 25, the arc-shaped adjustment rod 23 automatically moves close to the outer surface of the heart pump 1 and clamps it. When the heart pump 1 needs to be close to the pre-installed position, a downward force is applied to the heart pump 1 to make it move downward. The damping track 8 is set to prevent the heart pump 1 from falling due to excessive pushing force. Optionally, multiple damping tracks 8 are arranged at intervals in the falling channel 27. Optionally, the secondary centering device 5 is provided with a delivery channel coaxial therewith.

[0041] In some embodiments, the top of the outer sides of the first magnetic guide rail 71 and the second non-magnetic guide rail 72 are connected with auxiliary ears 9. The auxiliary ears 9 are used to provide a gripping point for auxiliary staff to ensure that the landing point of the heart pump 1 is always relative to the pre-installed position.

[0042] In some embodiments, a plurality of magnetic filling pieces 711 are embedded in the first magnetic guide rail 71 , and the magnetic filling pieces 711 provide magnetism to the first magnetic guide rail 71 .

[0043] In some embodiments, the secondary centering device 5 is a transparent structure with an operation observation port 6. The transparent structure allows the doctor to observe the falling condition of the heart pump 1, and the operation observation port 6 provides an access for the doctor to perform corresponding operations on the lower part of the device.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-ring self-centering pick-up and delivery device, characterized in that: include: A first-level centering device (2), a magnetic guide rail assembly (7), and a second-level centering device (5) are sequentially connected from top to bottom; the center of the first-level centering device (2) is movably connected to a heart pump (1); the heart pump (1) sequentially passes through the first-level centering device (2), the magnetic guide rail assembly (7), and the second-level centering device (5) and contacts the pre-installed position; the side of the magnetic guide rail assembly (7) is detachably connected to a magnetic pulling assembly (3); the magnetic guide rail assembly (7) is internally connected to a magnetic fixing ring (10); the magnetic fixing ring (10) is coaxial with the heart pump (1) and detachably connected; the outer circle of the magnetic fixing ring (10) contacts the inner side of the magnetic guide rail assembly (7); and the magnetic fixing ring (10) is magnetically connected to the magnetic pulling assembly (3); The magnetic guide rail group comprises two parallel first magnetic guide rails (71) and second non-magnetic guide rails (72), 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 two 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 ends of the second non-magnetic guide rails (72) are respectively connected to two sides of the lower surface of the primary centering device (2); The second non-magnetic guide rail (72) is hollow inside to form a return cavity (723), the top of the return cavity (723) is connected to a wheel disc (721), a retraction rope (722) is wound around the wheel disc (721), and the movable end of the retraction rope (722) is fixedly connected to the magnetic fixing ring (10); The magnetic pulling assembly (3) comprises 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).

2. The device according to claim 1, 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).

3. The device according to claim 1, characterized in that The first-stage centerer (2) comprises at least an adjustment component, wherein four adjustment components are connected end to end and a placement area (25) is formed in the center, and the heart pump (1) is located in the placement area (25); the adjustment component comprises at least a guide groove (21), a limiting arc rod (22), an arc-shaped adjustment rod (23), and a sliding block (24); the limiting arc rod (22) is connected to one side of the guide groove (21), the sliding block (24) is slidably connected in the guide groove (21), one end of the arc-shaped adjustment rod (23) is rotatably connected to the sliding block (24), and the other end is in contact with the heart pump (1); the four limiting arc rods (22) and the four arc-shaped adjustment rods (23) are all arranged in a ring array, and the four guide grooves (21) are arranged in a cross shape.

4. The device according to claim 3, characterized in that The primary centering device (2) has a coaxial falling channel (27) therewith, and the inner surface of the falling channel (27) is connected to a damping track (8).

5. The device according to claim 1, 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).

6. The device according to claim 1, characterized in that A plurality of magnetic filling pieces (711) are embedded in the first magnetic guide rail (71).

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

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