A medical spreader
A spreader, an integrated technology, applied in the field of medical equipment, can solve the problems of inconvenient operation, inability to extend the length direction, inconvenient to spread, etc.
Active Publication Date: 2021-09-28
SHANGHAI REACH MEDICAL INSTR
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Problems solved by technology
[0002] At present, in clinical orthopedic surgery, spreaders are often used to spread the bones and surrounding tissues, which increases the surgical field of view, facilitates the operation of doctors, and greatly facilitates the operation of doctors, avoiding the manual spread of surgical retractors. However, the distance between the two rods of the existing spreader can be adjusted appropriately, and the position in other directions is fixed, especially the position of the guide pin, so that it can be stretched at different bones. It is inconvenient to have a meeting, and it cannot be extended in the length direction, which makes the operation inconvenient, especially when the bone is tilted or the angle is not good. At this time, a certain space is needed to facilitate the doctor's operation.
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] refer to Figure 1-4 , a medical spreader, comprising: a moving rod 10, a first fixed cylinder 20 integrally connected to one end of the moving rod 10, a second fixed cylinder 30 movably sleeved on the other end of the moving rod 10, and threaded The first extension rod assembly 40 and the second extension rod assembly 50 connected to the first fixing cylinder 20 and the second fixing cylinder 30 have the same structure. After the guide pins are respec...
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The invention discloses a medical spreader, which comprises: a moving rod, a first fixing cylinder integrally connected to one end of the moving rod, a second fixing cylinder movably sleeved on the other end of the moving rod, and respectively screwed to the The first extension rod assembly and the second extension rod assembly in the first fixing cylinder and the second fixing cylinder, the first extension rod assembly and the second extension rod assembly have the same structure; the first extension rod assembly includes An extension structure and a fixed structure movably connected to one end of the extension structure, the extension structure includes a rotating wheel, a threaded rod fixed to the rotating wheel, a threaded sleeve threaded with the threaded rod and integrally connected to the The connecting seat at the end away from the rotating wheel is mounted on the threaded sleeve, and a fixed structure is movably connected to the connecting seat. According to the present invention, the two rods that fix the guide pin can be extended, and the guide pin can also be rotated in multiple directions, which greatly facilitates the expansion of bones at different angles and is convenient for doctors to operate.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical expander. Background technique [0002] At present, in clinical orthopedic surgery, spreaders are often used to spread the bones and surrounding tissues, which increases the surgical field of view, facilitates the operation of doctors, and greatly facilitates the operation of doctors, avoiding the manual spread of surgical retractors. However, the distance between the two rods of the existing spreader can be adjusted appropriately, and the position in other directions is fixed, especially the position of the guide pin, so that it can be stretched at different bones. It is inconvenient to have a meeting, and it cannot be extended in the length direction, which makes the operation inconvenient, especially when the bone is tilted or the angle is not good. At this time, a certain space is needed to facilitate the doctor's operation. Contents of the invention ...
Claims
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IPC IPC(8): A61B17/02
CPCA61B17/0206
Inventor 黄孝敏
Owner SHANGHAI REACH MEDICAL INSTR