Rib assist distraction device

Abstract

The application discloses a rib auxiliary distraction device, which comprises an adjusting screw rod, an end plate, a handle rod, a handle, a guide rod, an adjusting block, a screw rod sliding block, a fastening screw rod, a fastening nut, a distraction handle, a pressing plate, a connecting screw, a bearing, a shaft coupling and a micro motor. The rib auxiliary distraction device can adjust the position of the distraction handle at will, and can select the distraction handle with different angles according to the actual situation of the rib, so that the distraction handle is more suitable for the rib at the distraction position. After the rib is clamped into the bone clamping groove, the pressing plate is used for pressing, so that the rib is prevented from sliding out of the groove due to deformation during the distraction process, and the rib is also fixed, thereby reducing the safety hidden danger. Meanwhile, the motor driving can make the whole distraction process more stable and controllable, and the medical staff can pay attention to the rib distraction situation at any time, and the rib auxiliary distraction device is simple and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of thoracic surgery, specifically to a rib-assisted dispersing device. Background Technology

[0002] Open-chest surgery is a common type of thoracic surgery. Surgeons need to open the chest cavity at the appropriate location based on the patient's condition to perform the operation. Since the organs within the chest cavity are located between the ribs, auxiliary devices are often used to open the ribs during surgery to provide a good surgical field and operating space. Existing rib opening devices have limited applicability. Due to the complex angles of the human ribs, conventional hooks and plates do not fit the ribs well and are prone to slipping and falling off during opening. Furthermore, hooks and plates are often fixed in place, making angle adjustment impossible and difficult to maintain on the ribs when changing the opening position, resulting in inconvenience in use. Summary of the Invention

[0003] The purpose of this invention is to provide a rib-assisted spreading device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: comprising an adjusting screw, an end plate, a handle rod, a grip, a guide rod, an adjusting block, a screw slider, a fastening screw, a fastening nut, a spreading handle, a pressure plate, a connecting screw, bearings, a coupling, and a micro motor; the adjusting screw has left-hand and right-hand threads at its left and right ends respectively, and bearings are mounted at both ends and installed at the center of the lower side of the end plate; the handle rod is installed at the center of the upper side of the end plate, directly above the adjusting screw; the grip is mounted on the handle rod; the guide rod is mounted on... The adjusting block is mounted on the lower side of the end plate, located at both ends of the adjusting screw; a screw slider is installed in the center of the adjusting block, fitted onto the adjusting screw, and sleeved on both sides onto the guide rod, with two connecting plates at the lower end, each with a round hole; the opening handle is installed between the two connecting plates at the lower end of the adjusting block, fitted with a fastening screw, and locked at both ends by fastening nuts; the opening handle is L-shaped, with a retaining groove on its bottom surface, and the pressure plate is installed on the retaining groove and locked with connecting screws; the micro motor is fitted with a coupling and installed at the right end of the adjusting screw.

[0005] As a preferred embodiment of the present invention, the adjusting screw has a gap between the threads at both ends and a bushing is added to the outside; the bearing, the adjusting screw, and the end plate are all interference fit.

[0006] As a preferred embodiment of the present invention, a handle rod mounting seat is provided on the upper inner side of the end plate, and three mounting holes are opened on the lower side, with the central mounting hole being higher than the two sides; both ends of the handle rod and the guide rod are provided with rubber rings to fill the gaps between the handle rod and the handle rod mounting seat, and between the guide rod and the mounting holes during installation.

[0007] In a preferred embodiment of the present invention, the guide rod has the same length as the adjusting screw, and the handle rod has the same diameter as the adjusting screw, both of which are larger than the guide rod diameter.

[0008] In a preferred embodiment of the present invention, the adjusting block is welded and fixed to the lead screw slider, and buffer washers are installed at both ends of the lead screw slider; the adjusting block is made of stainless steel, and the two connecting plates on the lower side are integral with the adjusting block, with the same length as the upper block.

[0009] In a preferred embodiment of the present invention, there are two opening handles, which are installed symmetrically on the left and right sides and can rotate freely on the upper fastening screw and be locked by the fastening nut.

[0010] In a preferred embodiment of the present invention, the groove on the opening handle is wider at the top and narrower at the bottom, with a semi-circular bottom, and screw holes are provided on both sides of the groove.

[0011] In a preferred embodiment of the present invention, the width of the vertical section of the spreading handle is the same as the width of the two connecting plates at the lower end of the adjusting block, and it is always installed vertically between the two connecting plates.

[0012] As a preferred embodiment of the present invention, the semi-circular bottom of the card slot is located at the center of the lower end of the opening handle, and its inner wall is provided with anti-slip texture.

[0013] As a preferred embodiment of the present invention, the pressure plate has a countersunk hole corresponding to the screw hole on the opening handle, and the lower side of the pressure plate is a trapezoidal pressure block with an arc surface at the bottom.

[0014] As a preferred embodiment of the present invention, the angle between the bottom surface of the spreading handle and the vertical section is in the range of 80-100°.

[0015] As a preferred embodiment of the present invention, the guide rod is installed at the center of the upper side of the adjusting block, and the outer wall of the guide rod and the inner wall of the mounting hole of the adjusting block are both polished smooth.

[0016] Compared with existing technologies, the advantages of this invention are: The position of the expansion handle can be freely adjusted, and different angles of the expansion handle can be selected according to the actual situation of the ribs, making it more suitable for the ribs at the expansion position. After the ribs are inserted into the rib-holding groove, a pressure plate is used to tighten them, preventing the ribs from deforming and slipping out of the groove during the expansion process. This also helps to fix the ribs, reducing safety hazards. Furthermore, the motor drive makes the entire expansion process more stable and controllable, allowing medical staff to monitor the rib expansion at any time, and it is simple and convenient to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the expanded structure of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the adjusting lead screw of the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the mounting frame structure of the present invention;

[0022] In the diagram: 1. Adjusting screw; 2. End plate; 3. Handle rod; 4. Grip; 5. Guide rod; 6. Adjusting block; 7. Screw slider; 8. Fastening screw; 9. Fastening nut; 10. Spreading handle; 11. Pressure plate; 12. Connecting screw; 13. Bearing; 14. Coupling; 15. Miniature motor. Detailed Implementation

[0023] Example 1

[0024] like Figures 1 to 5As shown, this invention discloses a rib-assisted spreading device, including an adjusting screw 1, an end plate 2, a handle rod 3, a grip 4, a guide rod 5, an adjusting block 6, a screw-slider 7, a fastening screw 8, a fastening nut 9, a spreading handle 10, a pressure plate 11, a connecting screw 12, a bearing 13, a coupling 14, and a micro motor 15; the adjusting screw 1 has left-hand and right-hand threads at its left and right ends respectively, and each end is fitted with a bearing 13 and installed at the lower center of the end plate 2; the handle rod 3 is installed at the upper center of the end plate 2, directly above the adjusting screw 1; the grip 4 is installed on the handle rod 3; The guide rod 5 is installed on the lower side of the end plate 2, located at both ends of the adjusting screw 1; the adjusting block 6 has a screw slider 7 installed in the center, fitted onto the adjusting screw 1, and sleeved on both sides of the guide rod 5, with two connecting plates at the lower end, each with a round hole; the spreading handle 10 is installed between the two connecting plates at the lower end of the adjusting block 6, fitted with a fastening screw 8, and locked at both ends by fastening nuts 9; the spreading handle 10 is L-shaped, with a retaining groove on its bottom surface, and the pressure plate 11 is installed on the retaining groove and locked with connecting screws 12; the micro motor 15 is fitted with a coupling 14 and installed at the right end of the adjusting screw 1. A bushing is added between the threads of the adjusting screw, and buffer washers are installed on both sides of the screw slider 7 to prevent the micro motor 15 from rotating excessively and causing the two adjusting blocks 6 to collide. The bearing 13, adjusting screw 1, and end plate 2 are all interference fit, making the connection tighter. The handle rod 3 and guide rod 5 are clamped by the end plates 2 on both sides. The gaps between the handle rod 3 and the handle rod mounting seat, and between the guide rod 5 and the mounting hole are filled with rubber rings, making the upper mounting bracket more secure. The symmetrically installed opening handles 10 can rotate freely on the upper fastening screw 8 and are locked by the fastening nut 9. The angle of the opening handles 10 can be adjusted according to the actual situation of the patient's ribs to make it fit the patient's ribs better. At the same time, it is always installed vertically between the two connecting plates. The opening handles 10 with the bottom surface perpendicular to the vertical section are selected to facilitate insertion between the ribs and to lock the ribs into the bone-locking groove. At the same time, the pressure plate 11 presses the ribs, and the anti-slip texture on the inner wall of the bone-locking groove prevents the opening handles 10 from sliding on the ribs.

[0025] The working principle of this invention is as follows: When using this invention, the opening position is determined according to the patient's condition, and a suitable opening handle 10 is selected according to the patient's rib condition. Then, according to the operating position and angle of the medical staff during the operation, the angle of the opening handle 10 on the adjusting block 6 is adjusted, and then the fastening nut 9 is used to lock it. After the patient's thoracotomy is completed and the tissue on the ribs is removed, the micro motor 15 is controlled to rotate, driving the adjusting screw 1 to rotate and moving the two adjusting blocks 6 to the center. Then, the micro motor 15 is stopped, and the handle 4 is held. The spreading handle 10 is slowly inserted between the ribs. Then, the micro motor 15 is started, causing the adjusting blocks 6 to move to both sides, thereby moving the spreading handle 10 to the underside of the two ribs that need to be spread. Then, the handle 4 is held and lifted up, so that the ribs are locked in the clamping groove. The contact between the ribs and the clamping groove is observed and confirmed. The fastening nut 9 can be loosened appropriately to adjust the angle of the spreading handle 10, so that as many ribs as possible are locked in the clamping groove. Then, the pressure plate 11 is pressed on the ribs and locked on the spreading handle 10 with the connecting screw 12 to clamp the ribs. Then, the micro motor 15 can be started to slowly spread the ribs, providing a suitable surgical field and operating space for the operation. This invention allows for the selection of an appropriate angle for the opening handle 10 based on the actual condition of the patient's ribs. The angle of the opening handle 10 on the adjusting block 6 can be adjusted arbitrarily, making it suitable for opening ribs in different positions. During the opening process, the ribs are pressed firmly by the bone-clamping groove and the pressure plate 11, preventing deformation and dislodgement. It also provides support throughout the entire surgical procedure, allowing the ribs to be inserted from below for easy manipulation by medical staff and for clamping the ribs. The invention is simple to operate, convenient to use, and has a wide range of applications. It also reduces safety hazards, and the motor drive makes the entire opening process more stable and controllable, allowing medical staff to monitor the rib opening status at all times.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0028] While the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and modifications or variations without creative effort are still within the protection scope of the present invention.

Claims

1. A rib-assisted spreading device, characterized in that: The system includes an adjusting screw (1), an end plate (2), a handle rod (3), a grip (4), a guide rod (5), an adjusting block (6), a screw slider (7), a fastening screw (8), a fastening nut (9), a spreading handle (10), a pressure plate (11), a connecting screw (12), a bearing (13), a coupling (14), and a micro motor (15). The adjusting screw (1) has left-hand and right-hand threads at its left and right ends, respectively, and is fitted with bearings (13) at both ends, which are mounted on the lower center of the end plate (2). The handle rod (3) is mounted on the upper center of the end plate (2), directly above the adjusting screw (1). The grip (4) is mounted on the handle rod (3). The guide rod (5) 5) Installed on the lower side of the end plate (2), located at both ends of the adjusting screw (1); the adjusting block (6) is equipped with a screw slider (7) in the center, fitted on the adjusting screw (1), and sleeved on the guide rod (5) on both sides. The lower end is two connecting plates with round holes on the connecting plates; the opening handle (10) is installed between the two connecting plates at the lower end of the adjusting block (6), fitted with a fastening screw (8), and locked at both ends by fastening nuts (9); the opening handle (10) is L-shaped, with a bone groove on its bottom surface, and the pressure plate (11) is installed on the bone groove and locked with a connecting screw (12); the micro motor (15) is fitted with a coupling (14) and installed on the right end of the adjusting screw (1).

2. The rib-assisted spreading device according to claim 1, characterized in that: The adjusting screw (1) has a gap between the threads at both ends and a bushing is installed on the outside; the bearing (13), the adjusting screw (1), and the end plate (2) are all interference fit.

3. The rib-assisted spreading device according to claim 1, characterized in that: The end plate (2) has a handle rod mounting seat on the upper inner side and three mounting holes on the lower side, with the central mounting hole higher than the two sides; both ends of the handle rod (3) and guide rod (5) are equipped with rubber rings to fill the gaps between the handle rod (3) and the handle rod mounting seat, and between the guide rod (5) and the mounting holes during installation.

4. The rib-assisted spreading device according to claim 3, characterized in that: The guide rod (5) has the same length as the adjusting screw (1), and the handle rod (3) has the same diameter as the adjusting screw (1), both of which are larger than the diameter of the guide rod (5).

5. The rib-assisted spreading device according to claim 1, characterized in that: The adjusting block (6) is welded and fixed to the lead screw slider (7), and buffer washers are installed at both ends of the lead screw slider (7); the adjusting block (6) is made of stainless steel, and the two connecting plates on the lower side are integrated with the adjusting block (6), with the same length as the upper block.

6. The rib-assisted spreading device according to claim 5, characterized in that: The two opening handles (10) are installed symmetrically on the left and right sides and can rotate freely on the upper fastening screw (8) and be locked by the fastening nut (9).

7. The rib-assisted spreading device according to claim 1, characterized in that: The opening handle (10) has a groove that is wider at the top and narrower at the bottom, with a semi-circular bottom. Screw holes are provided on both sides of the groove.

8. A rib-assisted spreading device according to claim 6, characterized in that: The width of the vertical section of the spreading handle (10) is the same as the width of the two connecting plates at the lower end of the adjusting block (6), and it is always installed vertically between the two connecting plates.

9. A rib-assisted spreading device according to claim 7, characterized in that: The semi-circular bottom of the card slot is located at the center of the lower end of the spread handle (10), and its inner wall is provided with anti-slip texture.

10. A rib-assisted spreading device according to claim 8, characterized in that: The pressure plate (11) has countersunk holes corresponding to the screw holes on the opening handle (10). The lower side of the pressure plate (11) is a trapezoidal pressure block with an arc-shaped bottom surface.

11. A rib-assisted spreading device according to claim 10, characterized in that: The angle between the bottom surface of the spreading handle (10) and the vertical section is in the range of 80-100°.

12. The rib-assisted spreading device according to claim 10, characterized in that: The guide rod (5) is installed at the center of the upper side of the adjusting block (6), and the outer wall of the guide rod (5) and the inner wall of the mounting hole of the adjusting block (6) are both polished smooth.

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