Insertion tube rotary endoscopeTechnical Field
The invention relates to the field of endoscopes, in particular to an insertion tube rotary endoscope.
Background
Endoscopes are widely used in the medical field for diagnosing diseased tissue within a body cavity. The inspection function of the endoscope is therefore particularly important. Most of the existing endoscopes are four-way combined with 360-degree bent angles, so that comprehensive inspection can be realized. However, the existing endoscope has the common problems that scanning and inspection are inconvenient, visual angle blind areas exist, and the image azimuth sense is poor.
Another common solution is a limited rotation of the insertion tube, but rotation of the insertion tube relative to the grip results in the traction wires twisting together and not being able to bend. An insertion tube endoscope that can rotate through 360 ° infinitely is therefore highly desirable in many operating conditions.
Disclosure of Invention
In view of the shortcomings in the prior art, it is an object of the present invention to provide an insertion tube rotary endoscope.
The invention provides an insertion tube rotary endoscope, which comprises a control ring, a traction wire, a control wire and a central rotary device, wherein:
The traction ring is fixedly connected with the traction wire;
the control ring is fixedly connected with the control wire;
The traction ring and the control ring are both arranged on the central rotating device, and the control ring drives the traction ring to slide along the axial direction of the central rotating device;
the traction ring, the traction wire and the central rotating device synchronously rotate, and the control ring and the control wire do not synchronously rotate with the central rotating device.
Preferably, the traction ring and the control ring are coaxially arranged, the traction ring is arranged on one side of the control ring connected with the control wire, and the control ring is arranged on one side of the traction ring connected with the traction wire.
Preferably, the steering wheel further comprises a sliding shaft, and the steering ring is arranged on the sliding shaft and can slide along the axial direction of the sliding shaft.
Preferably, the sliding shaft further comprises an end cover, and one end of the sliding shaft is mounted on the end cover.
Preferably, the end cap is provided with a perforation through which the steering wire passes and is connected to the steering ring.
Preferably, the control wires and the control rings are provided in a plurality, and each control wire is correspondingly connected with one control ring.
Preferably, each steering wire is connected only to its corresponding steering ring.
Preferably, each control ring is correspondingly matched with one traction ring, and each traction ring is correspondingly provided with a traction wire. Each traction wire is only connected with the traction ring corresponding to the traction wire.
Preferably, the central rotation means is provided with a channel.
Preferably, the rotary table further comprises a knob, and the knob and the central rotating device synchronously rotate.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has reasonable structure, ingenious design and convenient operation.
2. The invention realizes a real 360-degree bending angle through the structural design of the control ring and the rotating ring, and is structurally more advantageous than the traditional four-way combined 360-degree bending angle.
3. The invention realizes that the insertion tube can rotate infinitely while the endoscope is bent, the inspection operation is simpler, and the man-machine interaction is facilitated.
4. The invention realizes the function of patrol without dead angles.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1 is a schematic view of a rotary endoscope of an insertion tube.
Fig. 2 and 3 are schematic views of the internal structure of the insertion tube rotary endoscope.
The figure shows:
Traction ring 1
Traction wire 2
Operating ring 3
Steering wire 4
Center rotation device 5
Slide shaft 6
End cap 7
Knob 8
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
As shown in figures 1 to 3, the insertion tube rotary endoscope comprises an operating ring, a traction wire, an operating wire and a central rotary device, wherein the traction ring is fixedly connected with the traction wire, the operating ring is fixedly connected with the operating wire, the traction ring and the operating ring are arranged on the central rotary device, the operating ring drives the traction ring to slide along the central rotary device, the traction ring, the traction wire and the central rotary device synchronously rotate, and the operating ring does not synchronously rotate with the central rotary device.
Further, the traction ring and the control ring are coaxially arranged, the traction ring is arranged on one side of the control ring connected with the control wire, and the control ring is arranged on one side of the traction ring connected with the traction wire. The traction ring can be driven to move in the axial direction after the control ring receives the pulling force of the control wire.
In more detail, the insertion tube rotary endoscope further comprises a sliding shaft, and two sliding shafts which are arranged in parallel are arranged on the left side and the right side of the control ring in the embodiment. The operating ring is arranged on the sliding shaft and can slide along the axial direction of the sliding shaft. In particular, the actuating ring may be in the form of a recess provided in the circumferential direction or a receiving opening extending in the circumferential direction. The notch or the accommodating opening is in limit fit with the sliding shaft on one hand and is convenient for the operating ring to pass through on the other hand. One end of two parallel sliding shafts is fixedly arranged on an end cover. The end cover is provided with a perforation, and the control wire passes through the perforation and is connected to the control ring.
Further, the control wire and the control ring are both provided with a plurality of control wires, and the control wires can be used for two-way control or four-way control. In this embodiment, two steering wires are taken as an example, and each steering wire is correspondingly connected with one steering ring. When the control ring far away from the end cover is connected with the control wire, the control wire penetrates through the control ring near the end cover and is connected with the control ring far away from the end cover. The steering ring can be further provided with a wire rope installation shaft, and the steering wire is connected with the steering ring through the wire rope installation shaft.
In more detail, each control ring is correspondingly matched with one traction ring, and the traction rings are correspondingly provided with traction wires. When one of the control rings receives the movement of the control wire, the traction ring corresponding to the control ring is driven to move.
The invention further comprises a knob, the knob and the central rotating device synchronously rotate, and the traction wire passes through the knob and is connected with the corresponding traction ring.
It should be noted that the steering ring and traction ring of the present invention may be replaced with each other.
In the invention, the control wire is correspondingly connected with the bent angle control mechanism of the fixing part, and the traction wire passes through the main hose of the rotating part and is correspondingly connected with the snake bone at the front end of the main hose.
The central rotating device is provided with a channel, and devices such as a signal conducting ring, a working channel and the like can be coaxially arranged in the channel.
The invention realizes a real 360-degree bending angle through the structural design of the control ring and the rotating ring, and is structurally more advantageous than the traditional four-way combined 360-degree bending angle. The infinite rotation function of the bent angle insertion tube is realized, the inspection operation is simpler, and the man-machine interaction is facilitated.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.