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Endoscope with adjustable hardness
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An endoscope, soft and hard technology, applied in the fields of endoscopy, medical science, diagnosis, etc., can solve the problems of unfavorable surgical operator requirements, sheath tube occupation, etc., and achieve the effect of facilitating collection and operation
Active Publication Date: 2014-12-31
SHANGHAI RAYKEEN LASER TECH CO LTD
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Abstract
Description
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Problems solved by technology
[0004] It is still necessary to use a hard tube to establish the channel, based on the size (diameter) limitation of the human body channel, such as the limited size of the human ureter, and the sheath occupies the size (diameter) of the instrument channel, which is not conducive to the performance of certain operations or to the operator more demanding
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Embodiment 1
[0038] figure 1 Shown is a schematic structural view of the flexible and hard adjustable endoscope 1 provided in Embodiment 1 of the present invention, figure 2 shown along figure 1 The cross-sectional view of the line A-A in the middle. The flexible and hard adjustable endoscope 1 can be a ureteroscope, a pyeloscope, a cystoscope, a gastroscope, a colonoscope, a bronchoscope, a choledochoscope or a hysteroscope.
[0039] combine figure 1 and figure 2 As shown, the flexible and hard adjustable endoscope 1 includes: a tubular body 10 with an inner end and an outer end, the inner end is suitable for entering the human body, the outer end is suitable for being placed outside the human body, and the tubular body 10 is provided with instruments Channel 11 , lighting channel 12 , water inlet channel 13 , return water channel 14 and drawing wire channel 15 .
[0040] The instrument channel 11 is used for entering various surgical instruments, such as scalpels, forceps, etc., a...
Embodiment 2
[0055] The endoscope provided by this embodiment two is also an endoscope with adjustable hardness and softness, and its structure is roughly the same as that of embodiment one, the difference is that: Image 6 As shown, there are three metal wires of the pulling wire 17', that is, a metal wire 174 is added, and the metal wire 174 and the original metal wire 171 are located on different sides of the movable body 173; when the wire 174 is pulled from the free end, the lens To be able to rotate in the opposite direction to the pulling wire 171.
[0056] Based on the above principles, the above-mentioned pulling wire may have multiple metal wires to realize the rotation of the lens in multiple directions.
Embodiment 3
[0058] The third embodiment also provides an endoscope with adjustable softness and hardness. Different from the solution of the first embodiment, the pulling wire 17 "in this embodiment includes two metal wires 171', 172' and nested in the A plurality of spherical, square or irregularly shaped movable bodies 173 on the two metal wires 171', 172', where the two metal wires 171', 172' are not arranged together, and are not located in multiple movable bodies 173 Center.
[0059] The principle of the endoscope to realize the adjustable soft and hard is:
[0060] Such as Figure 7 As shown, under normal conditions, multiple movable bodies 173 of the pulling wire 17" are loosely arranged on the two metal wires 171', 172'. At this time, the endoscope is a soft endoscope.
[0061] When the endoscope needs to enter the human body, the pulling wire 17 "needs to make the endoscope into a rigid endoscope. Specifically, as Figure 8 As shown, after a certain metal wire 171', 172' or tw...
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Abstract
The invention provides an endoscope with adjustable hardness. At least two metal wires and a plurality of movable bodies nested on one metal wire are used as a drawing wire, one end of the drawing wire is fixed with the inner end of an endoscope pipe body, the other end of the drawing wire is a free end, and the inner end of the pipe body is suitable for entering the human body. The principle of the drawing wire for achieving adjusting hardness is that: the metal wire nested with the plurality of movable bodies is drawn from the free end, the plurality of movable bodies are extruded together, the drawing wire enables the endoscope to become into a hard endoscope; after the endoscope enters the human body, the drawn metal wire is loosened, and parts of the movable bodies are not contacted tightly so as to enable the endoscope to become into a soft endoscope. Positions of an endoscope head and the inner end of the pipe body are fixed relatively, the other metal wire is drawn from the free end, and the endoscope head can rotate within a certain angle range. A sheathing canal is omitted, size of an instrument channel can be enlarged, operation is facilitated, and requirements for operators are low.
Description
technical field [0001] The invention relates to the field of surgical operation auxiliary instruments, in particular to an endoscope with adjustable hardness and softness. Background technique [0002] Endoscopes, such as ureteroscopes, are widely used in surgery and are suitable for insertion into the human body for some auxiliary treatments. Existing ureteroscopes include hard endoscopes and soft endoscopes, and hard endoscopes can only perform operations with relatively definite locations of lesions because the lens cannot be rotated. For some operations where the location of the lesion is not clear, for example, after the lens enters the renal pelvis, the ureteroscope needs to be constantly adjusted to enter different renal calyces to find the lesion for surgery. However, due to the soft material of this kind of soft endoscope, when entering the human body, it is necessary to use a hard material (usually a sheath) to establish a channel in the human body, and then send ...
Claims
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Application Information
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