Pericardium suspension device for minimally invasive cardiac surgery

Abstract

The utility model discloses a minimally invasive cardiac surgery pericardium suspension device which comprises a shell, the interior of the shell is hollow, an avoiding hole is formed in the middle of the shell, an upper cover is arranged on the upper portion of the shell, a plurality of sets of retracting and releasing assemblies are arranged between the shell and the upper cover, and each set of retracting and releasing assembly is provided with a suspension rope in a matched mode. One end of the suspension rope is fixedly connected with the winding and unwinding assembly, and the other end of the suspension rope penetrates through the shell, extends into the avoiding hole and is fixedly connected with a working head; a plurality of groups of locking assemblies are arranged on the shell, and the locking assemblies are in one-to-one correspondence with the folding and unfolding assemblies; a doctor is allowed to adjust the extension length of the suspension rope as required through the arrangement of the retracting and releasing assembly, so that the suspension height and position of the pericardium are accurately controlled, and the clearness of the surgical field and the operation accuracy are ensured; due to the arrangement of the locking assembly, the operation stability is further enhanced, a doctor can adjust the tightness degree of the retracting and releasing assembly according to the operation process and requirements, and the stability of pericardium suspension is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to a pericardial suspension device for minimally invasive cardiac surgery. Background Technology

[0002] Minimally invasive cardiac surgery is a type of cardiac surgery performed through small incisions, enabling patients to recover quickly after surgery, reducing pain, and minimizing postoperative complications. The pericardium is a thin membrane surrounding the heart; during surgery, it needs to be temporarily removed or suspended to allow surgeons easier manipulation. Sutures are typically used to suspend the pericardium for better access to the heart and surrounding tissues.

[0003] For exposing the surgical site in heart surgery, the most common technique is pericardial suspension and traction. The method of pericardial suspension is also quite sophisticated, typically employing a combination of pericardial peritoneal suspension and traction, and intracardiac pericardial suspension and traction. Peripheral suspension and traction provides a shallower view of the entire heart during surgery, making the procedure relatively safe. During surgery, to avoid pericardial effusion, a drainage tube is often used. However, in practice, the drainage tube can easily interfere with the pericardial suspension line, affecting the surgical procedure. Furthermore, existing pericardial suspensions use individual traction lines, making the setup rather cumbersome.

[0004] Therefore, this application provides a pericardial suspension device for minimally invasive cardiac surgery, which facilitates the placement of pericardial traction lines and avoids interference between drainage tubes and traction lines. Utility Model Content

[0005] This invention provides a pericardial suspension device for minimally invasive cardiac surgery, aiming to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A minimally invasive cardiac surgery pericardial suspension device includes: a shell, the interior of which is hollow and has a clearance hole in the middle; a top cover on the upper part of the shell; several sets of retraction and extension components are arranged between the shell and the top cover; each set of retraction and extension components is equipped with a suspension rope, one end of which is fixedly connected to the retraction and extension component, and the other end passes through the shell and extends into the clearance hole, and is fixedly connected to a working head; several sets of locking components are arranged on the shell, and each locking component corresponds to one of the retraction and extension components.

[0008] The clearance hole is used to insert a drainage tube, the extension and retraction assembly is used to adjust the extension length of the suspension rope, the working head is used to cooperate with pericardial tissue, and the locking assembly is used to adjust the tightness of the extension and retraction assembly.

[0009] Furthermore, the retraction and extension components include: a retraction and extension knob, a lever, and a winch;

[0010] The lower end of the rotating rod is rotatably connected to the lower part of the inner cavity of the housing, and the upper end passes through the upper cover and is fixedly connected to the retraction knob. A winch is sleeved on the rotating rod, and the winch is fixedly connected to the rotating rod. One end of the suspension rope is fixedly connected to the winch.

[0011] Furthermore, a limiting plate is provided on the upper part of the winch, and a plurality of limiting teeth are provided on the outer circumference of the limiting plate, which are used to cooperate with the locking assembly.

[0012] Furthermore, the locking assembly includes: a locking knob, a limiting rod, and a return spring;

[0013] The circumferential sidewall of the housing is provided with mounting holes for installing locking components;

[0014] The limiting rod is slidably disposed in the mounting hole. One end of the limiting rod passes through the housing and engages with the limiting plate. A locking knob is threaded to the outer end of the mounting hole. A return spring is provided between the locking knob and the limiting rod.

[0015] Furthermore, a flange is provided at one end of the limiting rod located in the inner cavity of the mounting hole, the flange being used to prevent the limiting rod from falling out of the mounting hole.

[0016] Furthermore, the end of the limiting rod that mates with the limiting disc is provided with a transition surface, which mates with the limiting tooth.

[0017] Furthermore, the working head is a puncture needle or a gripper.

[0018] Furthermore, the gripper includes: a fixing block, a fixing chuck, and a rotating chuck;

[0019] The fixing block is fixedly connected to the suspension rope, one end of the fixing clamp is fixedly connected to the fixing block, and the middle part of the rotating clamp is rotatably connected to the fixing block and cooperates with the fixing clamp.

[0020] A spring is provided between the end of the rotating chuck adjacent to the fixed block and the fixed block, and the spring causes the other end of the rotating chuck to abut against the fixed chuck; the adjacent sidewalls of the fixed chuck and the rotating chuck are provided with serrated surfaces.

[0021] Furthermore, a threaded sleeve is fixedly connected to the lower surface of the housing, and a through hole is provided in the middle of the threaded sleeve. The through hole is adapted to the clearance hole, and a fixing nut is connected to the external thread of the threaded sleeve 7.

[0022] Compared with the prior art, the present invention has the following technical effects:

[0023] 1. The pericardial suspension device for minimally invasive cardiac surgery described in this utility model allows doctors to adjust the extension length of the suspension rope as needed through the design of the retraction component, thereby precisely controlling the suspension height and position of the pericardium, ensuring a clear surgical field and operational precision. The locking component further enhances operational stability, allowing doctors to adjust the tightness of the retraction component according to the surgical progress and needs, ensuring the stability of the pericardial suspension. The clearance hole not only allows the suspension rope to pass through but also allows for the insertion of drainage tubes, enabling the device to be used not only for pericardial suspension during surgery but also to assist in other surgical procedures, such as drainage of pericardial effusion, and to avoid interference between the placement of the suspension rope and drainage tube, thus preventing disruption to the surgical procedure. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model;

[0025] Figure 2 This is an internal schematic diagram of a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model;

[0026] Figure 3 This is a cross-sectional view of a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model;

[0027] Figure 4 This is a partial enlarged view of a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model;

[0028] Figure 5 This is a schematic diagram of the working head of a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model;

[0029] Figure 6 This is a schematic diagram of the threaded sleeve and fixing nut of a minimally invasive cardiac surgery pericardial suspension device according to this utility model;

[0030] Figure 7 This is a schematic diagram of the puncture needle for a pericardial suspension device for minimally invasive cardiac surgery as described in this utility model.

[0031] In the picture:

[0032] 1. Shell; 2. Top cover;

[0033] 3. Retraction and extension assembly; 301. Retraction and extension knob; 302. Rotating rod; 303. Winch; 304. Limiting plate;

[0034] 4. Suspension rope;

[0035] 5. Working head; 501. Fixed block; 502. Fixed chuck; 503. Rotating chuck; 504. Serrated surface;

[0036] 6. Locking assembly; 601. Locking knob; 602. Limiting rod; 603. Transition surface; 604. Return spring;

[0037] 7. Threaded sleeve; 8. Fixing nut; 9. Puncture needle. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0039] like Figure 1-3 As shown, a minimally invasive cardiac surgery pericardial suspension device includes: a housing 1, the housing 1 being hollow inside with a clearance hole in the center; a top cover 2 on the upper part of the housing 1; several sets of retraction components 3 disposed between the housing 1 and the top cover 2; each set of retraction components 3 being fitted with a suspension rope 4; one end of the suspension rope 4 being fixedly connected to the retraction component 3, and the other end passing through the housing 1 and extending into the clearance hole, and being fixedly connected to a working head 5; several sets of locking components 6 are disposed on the housing 1, each locking component 6 corresponding to one of the retraction components 3;

[0040] The clearance hole is used to insert a drainage tube, the extension and retraction assembly 3 is used to adjust the extension length of the suspension rope 4, the working head 5 is used to cooperate with the pericardial tissue, and the locking assembly 6 is used to adjust the tightness of the extension and retraction assembly 3.

[0041] The extension and retraction component 3 allows doctors to adjust the extension length of the suspension rope 4 as needed, thereby precisely controlling the suspension height and position of the pericardium, ensuring a clear surgical field and operational precision. The locking component 6 further enhances operational stability, allowing doctors to adjust the tightness of the extension and retraction components according to the surgical progress and needs, ensuring the stability of the pericardial suspension. The clearance hole not only allows the suspension rope 4 to pass through but also allows for the insertion of drainage tubes, enabling the device to be used not only for pericardial suspension during surgery but also to assist in other surgical procedures, such as drainage of pericardial effusion. Furthermore, it prevents interference between the placement of the suspension rope 4 and the drainage tube, thus avoiding disruption to the surgical procedure.

[0042] like Figure 1-4 As shown, the retraction assembly 3 includes: a retraction knob 301, a rotating rod 302, and a winch 303;

[0043] The lower end of the rotating rod 302 is rotatably connected to the lower part of the inner cavity of the housing 1, and the upper end passes through the upper cover 2 and is fixedly connected to the retraction knob 301. A winch 303 is sleeved on the rotating rod 302, and the winch 303 is fixedly connected to the rotating rod 302. One end of the suspension rope 4 is fixedly connected to the winch 303.

[0044] In one specific embodiment, the rotating rod 302 is rotatably connected between the housing 1 and the upper cover 2. The winch 303 is sleeved on the rotating rod 302 and is fixedly connected to the rotating rod 302 by a tap. The upper end of the rotating rod 302 is sleeved with a winding knob 301, and the winding knob 301 is fixedly connected to the rotating rod 302 by a tap or bolt. The user can drive the winch 303 to rotate by rotating the winding knob 301. One end of the suspension rope 4 is fixedly connected to the winch 303. Therefore, the winding and unwinding of the suspension rope 4 can be controlled by rotating the winding knob 301.

[0045] In actual use of this device, the housing 1 is first fixed by an external fixing device, and then the extension length of the suspension rope 4 is adjusted to lift the pericardial tissue.

[0046] like Figure 2-4 As shown, the upper part of the winch 303 is provided with a limiting disk 304, and the outer circumference of the limiting disk 304 is provided with a plurality of limiting teeth, which are used to cooperate with the locking component 6.

[0047] like Figure 2-4 As shown, the locking assembly 6 includes: a locking knob 601, a limiting rod 602, and a return spring 604;

[0048] The circumferential sidewall of the housing 1 is provided with mounting holes for installing the locking assembly 6;

[0049] The limiting rod 602 is slidably disposed in the mounting hole. One end of the limiting rod 602 passes through the housing 1 and cooperates with the limiting plate 304. The outer end of the mounting hole is threaded with a locking knob 601. A return spring 604 is provided between the locking knob 601 and the limiting rod 602.

[0050] In one specific embodiment, the locking assembly 6 has the specific structure described above. By rotating the locking knob 601, the compression degree of the return spring 604 can be adjusted, thereby adjusting the pressure of the limiting rod 602 on the limiting disc 304, thereby limiting the extension distance of the suspension rope 4.

[0051] In practical use, after the housing 1 is fixed in the preset position, the doctor first rotates the locking knob 601 outward to relax the return spring 604. At this time, the doctor can directly pull the working head 5, which will drive the suspension rope 4 to extend. The winch 303 can rotate easily, making it convenient for the doctor to fix the working head 5 to the pericardial tissue. After fixing, the doctor can rotate the release knob 301 to rotate the winch 303 to retrieve the suspension rope 4. When it is necessary to fix the winch 303, the locking knob 601 is rotated inward to make the limiting rod 602 abut against the limiting plate 304, restricting the rotation of the winch 303, thereby completing the suspension of the pericardial tissue.

[0052] like Figure 3-4 As shown, the limiting rod 602 has a flange at one end located in the inner cavity of the mounting hole, and the flange is used to prevent the limiting rod 602 from falling out of the mounting hole.

[0053] like Figure 3-4 As shown, the end of the limiting rod 602 that mates with the limiting disc 304 is provided with a transition surface 603, which mates with the limiting teeth. By adjusting the tightness of the locking knob 601, the doctor can adjust the feel of turning the release knob 301, further improving the accuracy of releasing and retracting the suspension rope 4. When the return spring 604 is not compressed to its limit, the greater the compression of the return spring 604, the more difficult it is to release and retract the suspension rope 4.

[0054] In one specific embodiment, the working head 5 is a puncture needle or a clamp. The working head 5 can be a puncture needle for puncturing and suspending pericardial tissue, or it can be a clamp for holding and suspending pericardial tissue.

[0055] like Figure 5 As shown, the gripper includes: a fixing block 501, a fixing chuck 502, and a rotating chuck 503;

[0056] The fixing block 501 is fixedly connected to the suspension rope 4, one end of the fixing clamp 502 is fixedly connected to the fixing block 501, and the middle part of the rotating clamp 503 is rotatably connected to the fixing block 501 and cooperates with the fixing clamp 502.

[0057] A spring is provided between the rotating chuck 503 and the fixed block 501 at one end, and the fixed block 501, so that the other end of the rotating chuck 503 abuts against the fixed chuck 502; a serrated surface 504 is provided on the adjacent side wall of the fixed chuck 502 and the rotating chuck 503. The serrated surface 504 can improve the clamping force of the gripper and prevent pericardial tissue from falling off. Preferably, the two serrated surfaces 504 mesh with each other.

[0058] like Figure 6 As shown, a threaded sleeve 7 is fixedly connected to the lower surface of the housing 1. A through hole is provided in the middle of the threaded sleeve 7, which is adapted to the clearance hole. A fixing nut 8 is threadedly connected to the external surface of the threaded sleeve 7. In one specific embodiment, as... Figure 7 As shown, a fitting hole is made in the patient's chest wall using a puncture needle 9. The threaded sleeve 7 is inserted into the fitting hole from the outside and locked in the inside by a fixing nut 8 to complete the fixation of the suspension device. The suspension rope 4 and the working head 5 extend into the clearance hole to fit with the pericardial tissue to complete the suspension. The drainage tube can also be extended into the clearance hole for easy placement.

[0059] In another embodiment, the suspension device can also be fixed above the thoracic opening with the help of external fixation components to suspend the pericardial tissue.

[0060] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A minimally invasive cardiac surgery pericardial suspension device, characterized by, The utility model provides a heart pericardium drainage device, including: The shell (1) is hollow in the inside, and the middle part is provided with an avoiding hole, the upper portion of the shell (1) is provided with an upper cover (2), a plurality of groups of take -up assemblies (3) are arranged between the shell (1) and upper cover (2), each group of take -up assemblies (3) is provided with a suspension rope (4) in cooperation, one end of the suspension rope (4) is fixedly connected with the take -up assembly (3), the other end passes through the shell (1) and extends into the avoiding hole, and is fixedly connected with a working head (5);The shell (1) is provided with a plurality of groups of locking assemblies (6), and the locking assembly (6) corresponds with the take -up assembly (3) one by one; The avoiding hole is used for threading a drainage tube, the take -up assembly (3) is used for adjusting the extension length of the suspension rope (4), the working head (5) is used for cooperating with pericardial tissue, and the locking assembly (6) is used for adjusting the tightness of the take -up assembly (3).

2. The minimally invasive cardiac surgery pericardial suspension device of claim 1, wherein, The take -up assembly (3) includes a take -up knob (301), a rotating rod (302) and a winch (303). The lower end of the rotating rod (302) is rotatably connected with the lower portion of the inner cavity of the shell (1), the upper end passes through the upper cover (2) and is fixedly connected with the take -up knob (301), the winch (303) is sleeved on the rotating rod (302), the winch (303) is fixedly connected with the rotating rod (302), and one end of the suspension rope (4) is fixedly connected with the winch (303).

3. The minimally invasive cardiac surgery pericardial suspension device of claim 2, wherein, The upper portion of the winch (303) is provided with a limiting disc (304), the outer circumference of the limiting disc (304) is provided with a plurality of limiting teeth, and the limiting teeth are used for cooperating with the locking assembly (6).

4. The minimally invasive cardiac surgery pericardial suspension device of claim 3, wherein, The locking assembly (6) includes a locking knob (601), a limiting rod (602) and a return spring (604). The circumferential side wall of the shell (1) is provided with a mounting hole for mounting the locking assembly (6). The limiting rod (602) is slidably arranged in the mounting hole, one end of the limiting rod (602) passes through the shell (1) and cooperates with the limiting disc (304), the outer end of the mounting hole is threadedly connected with the locking knob (601), and the return spring (604) is arranged between the locking knob (601) and the limiting rod (602).

5. The minimally invasive cardiac surgery pericardial suspension device of claim 4, wherein, One end of the limiting rod (602) located in the mounting hole inner cavity is provided with a flange, and the flange is used to prevent the limiting rod (602) from falling off the mounting hole.

6. The minimally invasive cardiac surgery pericardial suspension device of claim 5, wherein, One end of the limiting rod (602) cooperates with the limiting disc (304) and is provided with a transition surface (603), and the transition surface (603) cooperates with the limiting teeth.

7. The minimally invasive cardiac surgery pericardial suspension device according to claim 1, wherein, The working head (5) is a puncture needle or a clamping jaw.

8. The minimally invasive cardiac surgery pericardial suspension device of claim 7, wherein, The clamping jaw includes a fixed block (501), a fixed clamp head (502) and a rotating clamp head (503). The fixed block (501) is fixedly connected with the suspension rope (4), one end of the fixed clamp head (502) is fixedly connected with the fixed block (501), the middle portion of the rotating clamp head (503) is rotatably connected with the fixed block (501) and cooperates with the fixed clamp head (502). The end adjacent to the fixed block (501) of the rotating chuck (503) is provided with a spring between the fixed block (501), the spring makes the other end of the rotating chuck (503) abut the fixed chuck (502); the adjacent side wall of the fixed chuck (502) and the rotating chuck (503) is provided with a sawtooth surface (504).

9. The minimally invasive cardiac surgery pericardial suspension device according to claim 1, wherein, The lower surface of the shell (1) is fixedly connected with a threaded sleeve (7), a through hole is arranged in the middle of the threaded sleeve (7), the through hole is matched with the avoiding hole, and a fixed nut (8) is threadedly connected outside the threaded sleeve (7).

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