CN103799959A

CN103799959A - Bendable endoscope for bladder

Info

Publication number: CN103799959A
Application number: CN201410041647.9A
Authority: CN
Inventors: 时振国; 朱小娟
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2014-05-21

Abstract

The invention relates to a bendable endoscope for a bladder. The bendable endoscope for the bladder comprises a light source, a light transmitting optical fiber, an imaging optical fiber, an image transmitting optical fiber and an image display device. The imaging optical fiber and the light transmitting optical fiber are both arranged in sheaths. The sheaths comprise the sheath I and the sheath II which are hinged to each other. Two sliding grooves which are arranged axially are symmetrically formed in the outer wall of the sheath I. The bendable endoscope further comprises a swinging driving device. The swinging driving device is used for controlling the sheath II 4 to swing at the far end. According to the bendable endoscope for the bladder, the head end of the bendable endoscope can swing to different degrees according to needs, the bendable endoscope is also suitable for the diagnosis of any part in the bladder, no blind area exists in the vision in the bladder, the defect of an existing cystoscope is overcome, and the rate of definite diagnoses of the cystoscope is remarkably improved; due to the fact that the adjusting method of the bendable endoscope is according to pure mechanical principles, energy can also be saved, the complexity of the bendable endoscope is lowered, and the practicability is improved.

Description

A kind of bent and stretched endoscope for bladder

Technical field

The present invention relates to medical instrument technical field, be specifically related to a kind of bent and stretched endoscope for bladder.

Background technology

Along with the development of endoscopic technic, cystoscope becomes the Main Means of diagnosis of urinary diseases, owing to can looking at the characteristics such as lower observation pathological changes size, position straight, higher to the diagnostic value such as tumor of bladder, complicated calculus, and to determining that operation plan is of great importance, and coordinate electric knife or get stone calculi breaking device and can treat disease simultaneously.But because existing cystoscope is straightforward hard mirror, inflexibility, becomes straightforward cystoscopic blind area for bladder front side wall and near near pathological changes internal urethral orifice, thereby has increased rate of missed diagnosis, increases patient's misery and burden.Though report has the application of soft lens at present, because its cost is higher, popularization is poor, has limited range of application.

Summary of the invention

The object of the invention is the deficiency for solving the problems of the technologies described above, a kind of bent and stretched endoscope for bladder is provided, can carries out as required bending in various degree, applicable to the diagnosis at any position of intravesical, can accomplish non-blind area to the intravesical visual field, make up existing cystoscopic deficiency.

The present invention is the deficiency solving the problems of the technologies described above, the technical scheme adopting is: a kind of bent and stretched endoscope for bladder, comprise light source, optical coupling part, lose optical fiber, imaging fibre, defeated picture optical fiber, image coupling unit and image display device, light source is connected and is lost optical fiber by optical coupling part, imaging fibre is connected with image coupling unit, image coupling unit connects image display device by defeated picture optical fiber, described imaging fibre and lose optical fiber and be all arranged in sheath pipe, described sheath pipe is made up of sheath pipe I and sheath pipe II, sheath pipe I and sheath pipe II are hinged by bearing pin, on the outer wall of sheath pipe I, be arranged with two chutes that arrange vertically, described endoscope also comprises oscillatory gearing mechanism, driving device is mainly by two gears, a driven wheel, two tooth bars and two pull-push piece compositions, two tooth bars are fastened on respectively in chute, and all can produce axial displacement along chute, two gears are all arranged on sheath pipe I one end away from sheath pipe II, and be meshed respectively at two tooth bars, described two gears are all connected with coaxial driven gear, driven wheel is arranged between two driven gears and with two driven gears and all engages, two tooth bars are connected with sheath pipe II by pull-push piece respectively away from gear one end.

Described pull-push piece comprises rotating shaft and bow, and rotating shaft is arranged on by two end supports on the outer wall of sheath pipe I, and one end of bow is located in rotating shaft, and the outer wall of its other end and sheath pipe II is hinged, and described tooth bar and bow are hinged near one end of rotating shaft.

Described sheath pipe I is in the enclosure sheathed.

Described driven wheel is connected with thumb wheel.

beneficial effect

Endoscope for bladder of the present invention, its head end can carry out swing in various degree as required, applicable to the diagnosis at any position of intravesical, can accomplish non-blind area to the intravesical visual field, make up existing cystoscopic deficiency, obviously improve cystoscopic diagnosis rate, and its regulative mode is pure theory of mechanics, also can energy savings, reduce the complexity of device, increase feasibility.

Accompanying drawing explanation

Fig. 1 is the structural representation of original state of the present invention;

Fig. 2 is the structural representation of original state sheath pipe I of the present invention and sheath pipe II hinged place;

Fig. 3 is the structural representation after head end of the present invention swings;

Labelling in figure: 1, lose optical fiber, 2, imaging fibre, 3, sheath pipe I, 4, sheath pipe II, 5, bearing pin, 6, gear, 7, tooth bar, 8, rotating shaft, 9, bow, 10, driven wheel, 11, driven gear, 12, shell, 13, thumb wheel.

The specific embodiment

As shown in the figure: a kind of bent and stretched endoscope for bladder, comprise light source, optical coupling part, lose optical fiber 1, imaging fibre 2, defeated picture optical fiber, image coupling unit and image display device, light source is connected and is lost optical fiber 1 by optical coupling part, imaging fibre 2 is connected with image coupling unit, image coupling unit connects image display device by defeated picture optical fiber, described imaging fibre 2 and lose optical fiber 1 and be all arranged in sheath pipe, said structure is the conventional structure of cystoscope (endoscope), the light that light source is produced is transferred to bladder inside provides illumination light, intravesical tissue is formed image by imaging device, facilitate healthcare givers to diagnose.Described sheath pipe is made up of sheath pipe I 3 and sheath pipe II 4, and sheath pipe I 3 is set in shell 12, and sheath pipe I 3 and sheath pipe II 4 are hinged by bearing pin 5, and sheath pipe II 4 can be rotated around bearing pin 5.On the outer wall of sheath pipe I 3, be arranged with two chutes that arrange vertically, described endoscope also comprises oscillatory gearing mechanism, and oscillatory gearing mechanism is in order to the swing from far-end control sheath pipe II 4.Driving device is mainly by two gears 6, a driven wheel 10, two tooth bars 7 and two pull-push piece compositions, two tooth bars 7 are fastened on respectively in chute, tooth bar 7 can not deviate from from chute, and all can produce axial displacement along chute, two gears 6 are all arranged on sheath pipe I 3 one end away from sheath pipe II 4, and be meshed respectively at two tooth bars 7, described two gears 6 are all connected with coaxial driven gear 11, driven wheel 10 is arranged between two driven gears 11 and with two driven gears 11 and all engages, two tooth bars 7 are connected with sheath pipe II 4 by pull-push piece respectively away from gear 6 one end.

Described pull-push piece comprises rotating shaft 8 and bow 9, rotating shaft 8 is arranged on by two end supports on the outer wall of sheath pipe I 3, described support is two projections that be arranged in parallel on the outer wall of sheath pipe I 3, in two projections, be provided with through hole, the two ends of rotating shaft 8 are located in through hole, and can from through hole, not deviate from.One end of bow 9 is located in rotating shaft 8, the outer wall of its other end and sheath pipe II 4 is hinged, described tooth bar 7 is hinged near one end of rotating shaft 8 with bow 9, tooth bar 7 has a groove with the hinged part of bow 9, in the time that tooth bar 7 promotes bow 9 and rotates, the bearing pin of hinged tooth bar 7 and bow 9 can slide in groove.

When use, use conventional method cystoscope to be stretched into patient's intravesical, in the time need to swinging head end and obtain the wider visual field, stir external thumb wheel 13, make two gears 6 all clockwise or rotate counterclockwise, and make the tooth bar 7 being engaged with carry out axial displacement along chute, two tooth bars 7 move rear one end that promotes respectively or pull bow 9, bow 9 is rotated, the rotation of bow 9 makes sheath pipe II 4 rotate around bearing pin 5, swing, in the time that needs swing in the opposite direction, oppositely stir thumb wheel 13, of the present invention for cystoscopic endoscope, its head end can carry out swing in various degree as required, applicable to the diagnosis at any position of intravesical, can accomplish non-blind area to the intravesical visual field, make up existing cystoscopic deficiency, obviously improve cystoscopic diagnosis rate, and its regulative mode is pure theory of mechanics, also can energy savings, reduce the complexity of device, increase feasibility.

Claims

1. the bent and stretched endoscope for bladder, comprise light source, optical coupling part, lose optical fiber (1), imaging fibre (2), defeated picture optical fiber, image coupling unit and image display device, light source is connected and is lost optical fiber (1) by optical coupling part, imaging fibre (2) is connected with image coupling unit, image coupling unit connects image display device by defeated picture optical fiber, described imaging fibre (2) and lose optical fiber (1) and be all arranged in sheath pipe, it is characterized in that: described sheath pipe is made up of sheath pipe I (3) and sheath pipe II (4), sheath pipe I (3) and sheath pipe II (4) are hinged by bearing pin (5), on the outer wall of sheath pipe I (3), be arranged with two chutes that arrange vertically, described endoscope also comprises oscillatory gearing mechanism, driving device is mainly by two gears (6), a driven wheel (10), two tooth bars (7) and two pull-push piece compositions, two tooth bars (7) are fastened on respectively in chute, and all can produce axial displacement along chute, two gears (6) are all arranged on sheath pipe I (3) one end away from sheath pipe II (4), and be meshed respectively at two tooth bars (7), described two gears (6) are all connected with coaxial driven gear (11), driven wheel (10) is arranged between two driven gears (11) and with two driven gears (11) and all engages, two tooth bars (7) are connected with sheath pipe II (4) by pull-push piece respectively away from gear (6) one end.

2. a kind of bent and stretched endoscope for bladder as claimed in claim 1, it is characterized in that: described pull-push piece comprises rotating shaft (8) and bow (9), rotating shaft (8) is arranged on by two end supports on the outer wall of sheath pipe I (3), one end of bow (9) is located in rotating shaft (8), the outer wall of its other end and sheath pipe II (4) is hinged, and described tooth bar (7) is hinged near one end of rotating shaft (8) with bow (9).

3. a kind of bent and stretched endoscope for bladder as claimed in claim 1, is characterized in that: described sheath pipe I (3) is set in shell (12).

4. a kind of bent and stretched endoscope for bladder as claimed in claim 1, is characterized in that: described driven wheel (10) is connected with thumb wheel (13).