Bending control mechanism, power handle and stapler
A bending control and handle technology, which is applied in the field of medical devices, can solve the problems of loss of bending function of the end actuator of the stapler, loss of bending function of the stapler, and insufficient convenience, and achieve the effect of improving reliability
Active Publication Date: 2020-10-16
MICONVEY TECH CO LTD
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Problems solved by technology
[0003] However, in the existing staplers, the bending action of some staplers is realized by manual operation, which is not convenient enough, and the bending action of some staplers is driven by a motor, which can realize automatic control, but when the motor is damaged or malfunctions, the anastomosis In other words, most staplers have only one power control path to control the bending action, as long as the power control path fails, the bending function of the end actuator of the stapler will be lost
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[0049] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.
[0050] It should be understood that the invention can be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like components throughout.
[0051] The bending control mechanisms of the following embodiments are all used in the stapler, refer to Figure 1 to Figure 10 , the stapler has an end...
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The invention discloses a bending control mechanism, a power handle and a stapler. The bending control mechanism comprises a pull rod, an installation base and a planetary gear assembly; the pull rodis used for driving an end effector to bend; the pull rod is arranged on the installation base in a pushing and pulling manner; the planetary gear assembly comprises a gear ring, a planetary gear, a centre gear shaft and a planetary frame; the gear ring is installed on the installation base in a rotatably matched manner; the planetary gear assembly comprises a power input part and a power output part; the planetary frame is the power output part; the power of the planetary frame is output to the pull rod, wherein the power input part can be switched; when the gear ring is locked and the centregear shaft is unlocked, the power input part is switched to the centre gear shaft; and, when the gear ring is unlocked and the centre gear shaft is locked, the power input part is switched to the gear ring. According to the bending control mechanism, the power handle and the stapler in the invention, through a manner of switching power input by changing the state of the part in the planetary gearassembly, when any path fails, the path can be switched to another path to control the pull rod; and thus, the bending function reliability of the stapler is increased.
Description
technical field [0001] The invention belongs to medical equipment, in particular to a bending control mechanism, a power handle and a stapler. Background technique [0002] A stapler is a surgical instrument that enters the human body through a small incision outside the body to perform linear clamping, cutting, anastomosis, etc., to remove diseased tissue. It is limited by the location of the small incision outside the body and the small space in the abdominal cavity or thoracic cavity. The end effector also needs to have left and right bending functions. In some staplers, the end effector is connected with a pull rod, and its bending function can be realized by pushing and pulling the pull rod. [0003] However, in the existing staplers, the bending action of some staplers is realized by manual operation, which is not convenient enough, and the bending action of some staplers is driven by a motor, which can realize automatic control, but when the motor is damaged or malfun...
Claims
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Login to View More IPC IPC(8): A61B17/072H02K7/116
CPCA61B17/07207H02K7/116A61B2017/00398
Inventor 杨捷刘凯李凡施政民
Owner MICONVEY TECH CO LTD