CN-116211365-B - Auxiliary rib expanding device

CN116211365BCN 116211365 BCN116211365 BCN 116211365BCN-116211365-B

Abstract

The invention discloses a rib auxiliary expanding device which comprises an adjusting screw rod, an end plate, a handle rod, a grab handle, a guide rod, an adjusting block, a screw rod sliding block, a fastening screw rod, a fastening nut, an expanding handle, a pressing plate, a connecting screw, a bearing, a coupler and a miniature motor. The rib clamping device has the beneficial effects that the position of the opening handle can be freely adjusted, simultaneously, the opening handles with different angles can be selected according to the actual conditions of the ribs, so that the rib clamping device is more matched with the ribs at the opening position, the ribs are clamped into the clamping bone groove and then are tightly pressed by the pressing plate, the ribs are prevented from deforming and sliding out of the groove in the opening process, the fixing effect is also realized on the ribs, and the potential safety hazard is reduced. Meanwhile, the motor drive can enable the whole opening process to be more stable and controllable, so that medical staff can pay attention to rib opening conditions at any time, and the rib opening device is simple and convenient to use.

Inventors

SHAO CHANGJIAN
TONG LIPING
XING MINGLIANG
DONG XIAOPING
ZHANG YONG
WANG YUANYONG
WANG CHAOYANG
BAI LIMIN
PAN MINGHONG
DING PENG
CHEN HAO
YAN XIAOLONG
JIANG TAO
ZHU YIFANG
DUAN HONGTAO
WANG LEI
HAN JING
TIAN FENG
LIU HONGGANG

Assignees

中国人民解放军空军军医大学

Dates

Publication Date: 20260508
Application Date: 20230323

Claims (12)

1. A rib auxiliary spreading device is characterized by comprising an adjusting screw rod (1), an end plate (2), a handle rod (3), a grab handle (4), a guide rod (5), an adjusting block (6), a screw rod sliding block (7), a fastening screw rod (8), a fastening nut (9), a spreading handle (10), a pressing plate (11), a connecting screw (12), a bearing (13), a coupler (14) and a miniature motor (15), wherein left and right threads are respectively arranged at the left end and the right end of the adjusting screw rod (1), the two ends of the adjusting screw rod are respectively provided with a left thread and a right thread, the bearing (13) are respectively assembled at the lower center of the end plate (2), the handle rod (3) is arranged at the upper center of the end plate (2) and is positioned right above the adjusting screw rod (1), the grab handle (4) is arranged on the handle rod (3), the guide rod (5) is arranged at the lower side of the end plate (2), the adjusting screw rod (6) is centrally arranged at the two ends of the adjusting screw rod (1), the two sides of the adjusting screw rod (6) are assembled on the adjusting screw rod (1), the two sides are sleeved on the guide rod (5), the two lower ends are respectively provided with a connecting plate, the two end-fixing hole (8) and the two end-fixing handles (9) are fixedly arranged between the two end-fixing handles (8), the bottom surface of the screw rod is provided with a clamping groove, the pressing plate (11) is arranged on the clamping groove and is locked by the matched connecting screw (12), and the miniature motor (15) is matched with the coupler (14) and is arranged at the right end of the adjusting screw rod (1).
2. The rib auxiliary spreading device is characterized in that a space is arranged between threads at the left end and the right end of the adjusting screw rod (1), a shaft sleeve is additionally arranged on the outer side of the adjusting screw rod, and the bearing (13) is in interference fit with the adjusting screw rod (1) and the end plate (2).
3. The rib auxiliary spreading device according to claim 1, wherein a handle rod mounting seat is arranged above the inner side of the end plate (2), three mounting holes are formed in the lower side of the end plate, the central mounting holes are higher than the two sides, rubber rings are arranged at the two ends of the handle rod (3) and the guide rod (5), and gaps between the handle rod (3) and the handle rod mounting seat and gaps between the guide rod (5) and the mounting holes are filled during mounting.
4. A rib auxiliary spreading device according to claim 3, characterized in that the length of the guide rod (5) is the same as that of the adjusting screw rod (1), and the diameter of the handle rod (3) is the same as that of the adjusting screw rod (1) and is larger than that of the guide rod (5).
5. The rib auxiliary spreading device according to claim 1 is characterized in that the adjusting block (6) is welded and fixed with the screw rod sliding block (7), buffer washers are arranged at two ends of the screw rod sliding block (7), the adjusting block (6) is made of stainless steel, and two connecting plates at the lower side are integrated with the adjusting block (6), and the length of the adjusting block is the same as that of an upper block.
6. A rib auxiliary spreading device according to claim 5 is characterized in that the spreading handle (10) is arranged in two parts and symmetrically left and right, can freely rotate on the upper fastening screw rod (8) and is locked by the fastening nut (9).
7. The rib auxiliary expanding device according to claim 1, wherein the expanding handle (10) is characterized in that the upper clamping groove is wide at the upper part and narrow at the lower part, the bottom is semicircular, and screw holes are arranged at the two sides of the clamping groove.
8. The rib auxiliary spreading device according to claim 6, wherein the spreading handle (10) has the same width as the two connecting plates at the lower end of the adjusting block (6), and is always vertically arranged between the two connecting plates.
9. The rib auxiliary spreading device according to claim 7, wherein the semicircular bottom of the clamping groove is positioned at the center of the lower end of the spreading handle (10), and the inner wall of the clamping groove is provided with anti-skid lines.
10. The rib auxiliary expanding device according to claim 8, wherein the pressing plate (11) is provided with a countersunk hole corresponding to a screw hole on the expanding handle (10), the lower side of the pressing plate (11) is provided with a trapezoid pressing block, and the bottom surface of the trapezoid pressing block is provided with an arc surface.
11. A rib-assisted distraction device according to claim 10, characterized in that the angle between the bottom surface of said distraction lever (10) and the vertical segment is in the range of 80-100 °.
12. The rib auxiliary spreading device according to claim 10, wherein the guide rod (5) is arranged 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 polished smoothly.

Description

Auxiliary rib expanding device Technical Field The invention relates to the technical field of thoracic surgery, in particular to a rib auxiliary spreading device. Background Open chest surgery is a common shell operation in chest surgery, and a doctor needs to open at the corresponding position of the chest according to the actual situation of a patient to perform the operation. Human organs in the chest are all located on ribs, and when an operation is performed, the ribs are often required to be spread by using an auxiliary device so as to provide good operation vision and operation space. The existing rib expanding device is poor in applicability, due to the fact that the angle of a human rib is complex, the conventional supporting hooks and supporting plates are poor in fit with the rib and easy to slip and fall off during expanding, the supporting hooks and the supporting plates are often fixedly installed, the angle cannot be adjusted, the supporting hooks and the supporting plates are often difficult to fix on the rib when the expanding position is changed, and the rib expanding device is inconvenient to use. Disclosure of Invention The invention aims to provide a rib auxiliary opening device which is used for solving the problems in the background technology. The technical scheme includes that the device comprises an adjusting screw rod, an end plate, a handle rod, a grab handle, a guide rod, an adjusting block, a screw rod sliding block, a fastening screw rod, a fastening nut, a supporting handle, a pressing plate, a connecting screw, a bearing, a coupler and a miniature motor; the left and right ends of the adjusting screw rod are respectively provided with left and right threads, the two ends of the adjusting screw rod are respectively provided with bearings and are arranged in the center of the lower side of the end plate, the handle rod is arranged in the center of the upper side of the end plate and is positioned right above the adjusting screw rod, the grab handle is arranged on the handle rod, the guide rod is arranged on the lower side of the end plate and is positioned at the two ends of the adjusting screw rod, the center of the adjusting block is provided with a screw rod sliding block which is arranged on the adjusting screw rod in a fitting mode, the two sides of the guide rod are sleeved on the guide rod, the lower ends of the guide rod are provided with two connecting plates, the connecting plates are provided with round holes, the opening handle is arranged between the two connecting plates at the lower end of the adjusting block and is provided with a fastening screw rod, the two ends of the opening handle are fastened and fixed through fastening nuts, the opening handle is L-shaped, the pressing plate is arranged on the clamping groove and is locked by the fastening screw, and the miniature motor is provided with a coupling and is arranged at the right end of the adjusting screw rod. As a preferable technical scheme of the invention, a gap is arranged between threads at the left end and the right end of the adjusting screw rod, a shaft sleeve is additionally arranged at the outer side of the adjusting screw rod, and the bearing, the adjusting screw rod and the end plate are in interference fit. As a preferable technical scheme of the invention, a handle rod mounting seat is arranged above the inner side of the end plate, three mounting holes are formed in the lower side of the end plate, the central mounting hole is higher than the two sides, rubber rings are arranged at the two ends of the handle rod and the guide rod, and gaps between the handle rod and the handle rod mounting seat and between the guide rod and the mounting holes are filled during mounting. In a preferred technical scheme of the invention, the length of the guide rod is the same as that of the adjusting screw rod, and the diameter of the handle rod is the same as that of the adjusting screw rod and is larger than that of the guide rod. According to the preferable technical scheme, the adjusting block is welded and fixed with the screw rod sliding block, the buffer washers are arranged at the two ends of the screw rod sliding block, the adjusting block is made of stainless steel, the two connecting plates at the lower side are integrated with the adjusting block, and the length of the adjusting block is the same as that of the upper block. According to the technical scheme, the two opening handles are symmetrically arranged left and right, and can rotate freely on the upper fastening screw rod and be locked by the fastening nut. In a preferred technical scheme of the invention, the upper clamping groove of the expanding handle is wide at the upper part and narrow at the lower part, the bottom is semicircular, and screw holes are arranged at two sides of the clamping groove. The width of the vertical section of the opening handle is the same as the width of the two connecting plates at the lower end of the adjust