Adjustable left room drag hook

Abstract

The utility model relates to the technical field of surgical auxiliary instruments, and discloses an adjustable left atrium retractor which comprises a handle and a quick fixing structure, and the quick fixing structure is arranged on the lower side of the handle and used for being fixedly connected with a sternum retractor; the universal supporting rod comprises a movable joint and a moldable iron wire; the universal supporting rod is arranged at the front end of the handle and is fixed through the moldable iron wire and the movable joint after being bent and deformed; the blade is connected with the front end of the universal supporting rod through the multidirectional rotating joint; and the antifouling soft sleeve wraps and is arranged on the rod body of the universal supporting rod. Compared with the prior art, the sternum retractor fixing device has the advantages that the sternum retractor fixing device is fixed to a sternum retractor through the fast fixing structure, other hands are not needed for holding, manpower waste is reduced, the operation space is increased, and operation is more convenient; the universal supporting rod can be bent, deformed and fixed in the state, and is more convenient and easy to use; meanwhile, the types of the blades can be replaced according to needs, and the functionality is more and stronger.

Description

Technical Field

[0001] This utility model relates to the field of surgical auxiliary instruments technology, specifically to an adjustable left atrial hook. Background Technology

[0002] In mitral valve surgery, the left atrial retractor is a commonly used tool by doctors and is often used in conjunction with other cardiac surgical equipment such as the sternal retractor. After the left atrium is cut open, the doctor needs to use the left atrial retractor to lift the edge of the incision in order to fully expose the surgical field and reveal the position of the mitral valve for operation, thereby improving the success rate of the operation and shortening the operation time.

[0003] However, the left atrial retractor used in operating rooms is usually a separate part, which requires an assistant to hold it in place. This wastes human resources and takes up the surgeon's surgical space. Simply fixing the original left atrial retractor to a support or other instrument cannot guarantee the lifting angle of the left atrial retractor, which affects the surgery. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide an adjustable left atrial retractor, whose blade is fixed to the front end by a multi-directional rotating head, and can be quickly fixed to the sternal retractor during surgery. At the same time, it can be bent and deformed and fixed by a universal support rod.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] An adjustable left atrial hook, comprising:

[0007] The handle and quick-fix structure are located on the underside of the handle and are used to connect and fix it to the sternal retractor.

[0008] The universal support rod includes a movable joint and a malleable wire; the universal support rod is located at the front end of the handle and is fixed in place by the malleable wire and the movable joint after bending and deformation;

[0009] Blades and multi-directional rotary joints; the blades are connected to the front end of the universal support rod via the multi-directional rotary joints.

[0010] A stain-resistant soft sleeve is wrapped around and placed on the body of the universal support rod.

[0011] As an improvement, the universal support rod also includes a mounting head; the movable joint is a tubular structure with a spherical protrusion at the rear end and a spherical concave surface at the front end that movably engages with the rear end. The rear end of the mounting head is connected and fixed to one end of a malleable wire, and a spherical protrusion that movably engages with the spherical concave surface of the movable joint is formed. Multiple movable joints are connected end to end, and the last movable joint is fixed to the front end of the handle. The other end of the malleable wire passes through the movable joint and the handle and is connected and fixed to the inner side of the adjustment knob at the rear of the handle.

[0012] As an improvement, the multi-directional rotary joint includes a mounting post, a rotary clamp, and a spherical clamp. The mounting post is a circular cylinder with one end threaded onto the front end face of the mounting head, and the other end has a magnetic spherical curved surface that mates with the spherical clamp. The spherical curved surface end of the mounting post also has a ring of limiting ribs extending outward. The rotary clamp is movably fitted onto the mounting post, and its front end has multiple inwardly curved arc-shaped clamping blocks fixed circumferentially. The spherical clamp is formed on the top of the blade and movably fits between the multiple arc-shaped clamping blocks, and is in contact with the spherical curved surface.

[0013] As an improvement, the quick-fixing structure includes a clamping rod, a spring, a handle, a fixed clamping plate, and a movable clamping plate; the fixed clamping plate is fixed to the bottom of the handle, the movable clamping plate is a square plate with a notch on one side and is arranged corresponding to the fixed clamping plate, the clamping rod is a U-shaped rod, one end is hinged to the side of the handle and forms a handle upwards, the other end is hinged to the notch of the movable clamping plate, a spring is provided between the handle and the handle, and an anti-slip pad is provided on the opposite surfaces of the movable clamping plate and the fixed clamping plate.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] 1. This utility model is fixed to the sternal retractor through a quick-fixing structure, eliminating the need for manual assistance, reducing manpower waste, increasing surgical space, and making it more convenient.

[0016] 2. The universal support rod of this utility model can be bent and deformed and fixed in this state, making it more convenient and easy to use.

[0017] 3. The blades of this utility model are fixed to the front end of the adjustable left chamber hook through a multi-directional rotary joint. The blade type can be changed as needed, making it more functional and powerful. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a partial structural schematic diagram of the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram of the universal support rod of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the multi-directional rotary joint of this utility model.

[0022] Figure 5 This is a schematic diagram of the quick-fixing structure of this utility model.

[0023] As shown in the figure: 1. Anti-fouling soft sleeve; 2. Blade; 3. Handle; 4. Universal support rod; 5. Movable joint; 6. Moldable wire; 7. Mounting head; 8. Adjustment knob; 9. Mounting column; 10. Rotary clamp; 11. Arc-shaped clamp; 12. Spherical clamp; 13. Spring; 14. Handle; 15. Clamping rod; 16. Movable clamp; 17. Fixed clamp. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] An adjustable left atrial hook, such as Figure 1 As shown, it includes: handle 3, quick-fix structure, universal support rod 4, multi-directional rotary joint, blade 2 and anti-fouling soft sleeve 1.

[0027] Handle 3 and quick-fix structure, such as Figure 5As shown, handle 3 is a hollow rod with an adjustment knob 8 rotatably connected to its rear end. Multiple paddles are arranged circumferentially on the outer side of adjustment knob 8. The quick-fix structure includes clamping rod 15, spring 13, handle 14, fixed clamping plate 17, and movable clamping plate 16. Fixed clamping plate 17 is fixed to the bottom of handle 3. Movable clamping plate 16 is a square plate with a notch on one side (facing clamping rod 15) and is arranged corresponding to fixed clamping plate 17 (arranged below fixed clamping plate 17). Clamping rod 15 is a U-shaped rod with one end hinged between a pair of ear plates formed on the side of handle 3 and a handle 14 formed upward (slightly inclined to the outside of handle 3). The other end is hinged to the notch of movable clamping plate 16. Spring 13 is provided between handle 14 and handle 3. When handle 14 is pressed towards handle 3, fixed clamping plate 17 and movable clamping plate 16 separate vertically. Anti-slip pad is also laid on the opposite surfaces of fixed clamping plate 17 and movable clamping plate 16.

[0028] Universal support rod, such as Figure 3 As shown, it includes a movable joint 5, a malleable wire 6, and a mounting head 7; the movable joint 5 is a tubular structure (specific shape as shown). Figure 3 As shown), the rear end is formed as a spherical protrusion, and the front end is formed as a spherical concave surface that movably engages with the rear end. The mounting head 7 is a tapered structure that is thinner at the front and thicker at the back. The front end is formed with a threaded hole, and the rear end is connected and fixed to one end of the malleable wire 6 and forms a spherical protrusion that movably engages with the spherical concave surface of the movable joint 5. Multiple movable joints 5 are connected end to end, and the last movable joint 5 is fixed to the front end of the handle 3. The other end of the malleable wire 6 passes through the movable joint 5 and the handle 3 and is connected and fixed to the adjustment knob 8. After the universal support rod 4 is bent and deformed, it can be fixed by the malleable wire 6 and the movable joint 5, and its rotation can be controlled by the adjustment knob 8.

[0029] Multi-directional rotary joints, such as Figure 4As shown, it includes a mounting post 9, a rotating chuck 10, and a spherical chuck 12. The mounting post 9 is a circular cylinder, with one end (the rear end forming a threaded post) threadedly fixed to the front end face of the mounting head 7. The other end forms a magnetic spherical curved surface that mates with the spherical chuck 12 (the mounting post 9 is made of magnetically conductive metal and contains a built-in magnet). A limiting rib is also formed outwards at the spherical curved surface end of the mounting post 9. The rotating chuck 10 is movably fitted onto the mounting post 9 (fitted between the limiting rib and the front end face of the mounting head 7), and the rear end... A conical structure is formed outwards (not in contact with the front end face of the mounting head 7), and three inwardly curved arc-shaped locking blocks 11 are fixed circumferentially at the front end. A spherical locking head 12 is formed on the top of the blade 2 (a circular column is formed at the bottom of the spherical locking head 12 and connected to the top of the blade 2), and is movably fitted between the three arc-shaped locking blocks 11, and is attracted and adhered together by the spherical curved surface. After the rotating locking head 10 is pushed backwards, the mounting column 9 pushes the spherical locking head 12 out of the mating area of ​​the arc-shaped locking blocks 11, and the blade can be removed and replaced. The blade is an existing device, mostly with a J-shaped hook structure, and there are styles with other functions.

[0030] The anti-fouling soft sleeve 1 is a medical-grade rubber film that wraps around and is placed on the body of the universal support rod 4 to prevent blood and stains from getting into the gaps of the universal support rod 4. The other parts of the adjustable left atrial hook are made of medical-grade metal.

[0031] In the specific implementation of this embodiment:

[0032] During the surgical preparation phase, the surgeon needs to select an appropriate adjustable left atrial retractor and check its integrity. During the procedure, the surgeon uses a scalpel to make an incision in the heart, enters the heart chamber, and locates the mitral valve. Then, leaflet 2 is placed into the left atrium, and the adjustable left atrial retractor is secured to the sternal retractor using a quick-fix structure. Next, the surgeon adjusts the shape and position of the left atrial retractor's universal support rod to lift the incision edge, fully exposing the mitral valve for repair or replacement. After the surgery, the surgeon removes leaflet 2 from the left atrium and sutures the surgical site. It is important to note that the surgeon must follow a series of strict operating procedures and sterilization requirements, replacing leaflet 2, the multi-directional rotating connector, and the anti-fouling sheath 1 frequently to ensure the success rate of the mitral valve surgery and postoperative recovery.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An adjustable left atrial hook, characterized in that, include: The handle (3) and the quick-fixing structure are located on the lower side of the handle (3) and are used to connect and fix it to the sternal retractor. The universal support rod (4) includes a movable joint (5) and a malleable wire (6); the universal support rod (4) is set at the front end of the handle (3) and is fixed by the malleable wire (6) and the movable joint (5) after bending and deformation; Blade (2) and multi-directional rotary joint, blade (2) is connected to the front end of universal support rod (4) through multi-directional rotary joint; A dirt-resistant soft sleeve (1) is wrapped around and placed on the body of the universal support rod (4).

2. The adjustable left atrium hook according to claim 1, characterized in that: The handle (3) is a hollow rod with an adjustment knob (8) rotatably connected to the rear end, and multiple paddles are arranged circumferentially on the outside of the adjustment knob (8).

3. An adjustable left atrial hook according to claim 2, characterized in that: The universal support rod also includes a mounting head (7); the movable joint (5) is a tubular structure with a spherical protrusion at the rear end and a spherical concave surface at the front end that movably engages with the rear end. The rear end of the mounting head (7) is connected and fixed to one end of the malleable wire (6), and a spherical protrusion that movably engages with the spherical concave surface of the movable joint (5) is formed. Multiple movable joints (5) are connected end to end, and the last movable joint (5) is fixed to the front end of the handle (3). The other end of the malleable wire (6) passes through the movable joint (5) and the handle (3) and is connected and fixed to the adjustment knob (8).

4. An adjustable left atrial hook according to claim 3, characterized in that: The multi-directional rotary joint includes a mounting post (9), a rotary clamp (10), and a spherical clamp (12). The mounting post (9) is a circular cylinder with one end threaded to the front end face of the mounting head (7) and the other end forming a spherical curved surface that engages with the spherical clamp (12) and is magnetic. The spherical curved surface end of the mounting post (9) also forms a ring of limiting ribs on the outer side. The rotary clamp (10) is movably sleeved on the mounting post (9) and has multiple inwardly curved arc-shaped clamping blocks (11) fixed along the circumferential direction at its front end. The spherical clamp (12) is formed on the top of the blade (2) and is movably engaged between the multiple arc-shaped clamping blocks (11) and fits against the spherical curved surface.

5. An adjustable left atrium hook according to claim 1, characterized in that: The quick-fixing structure includes a clamping rod (15), a spring (13), a handle (14), a fixed clamping plate (17), and a movable clamping plate (16). The fixed clamping plate (17) is fixed to the bottom of the handle (3). The movable clamping plate (16) is a square plate with a notch on one side and is arranged corresponding to the fixed clamping plate (17). The clamping rod (15) is a U-shaped rod with one end hinged to the side of the handle (3) and forming a handle (14) upward. The other end is hinged to the notch of the movable clamping plate (16). A spring (13) is provided between the handle (14) and the handle (3).

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