CN103799960A

CN103799960A - Bendable and stretchable bladder endoscope

Info

Publication number: CN103799960A
Application number: CN201410041648.3A
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 and stretchable bladder endoscope which comprises a light source, a light transmission optical fiber, an imaging optical fiber, an image transmission optical fiber and an image display device. The imaging optical fiber and the light transmission optical fiber are both arranged inside sheath tubes, the sheath tubes comprise the sheath tube I and the sheath tube II which are mutually hinged, and two sliding chutes which are formed in the axial direction are symmetrically formed in the outer wall of the sheath tube I. The endoscope further comprises a swing driving device, and the swing driving device is used for controlling swing of the sheath tube II 4 in a far-end mode. The head of the bladder endoscope can swing in varying degrees according to needs, the bladder endoscope can be suitable for diagnosing any part in a bladder, a non-blind area view can be achieved in the bladder, the defects of an existing bladder endoscope are overcome, the definite diagnosis rate of the bladder endoscope is obviously improved, the adjusting manner is a pure mechanical principle adjusting manner, energy can also be saved, the complexity of the device is lowered, and feasibility is increased.

Description

One can be bent and stretched intravesical sight glass

Technical field

The present invention relates to medical instrument technical field, be specifically related to one and can bend and stretch intravesical sight glass.

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, provide one can bend and stretch intravesical sight glass, can carry 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: one can be bent and stretched intravesical sight glass, 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 is plastic material.

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 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, driven wheel, 9, pull-push piece, 10, driven gear, 11, shell, 12, thumb wheel.

The specific embodiment

As shown in the figure: one can be bent and stretched intravesical sight glass, 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 11, 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 9, two tooth bars 7 and two pull-push piece 9 form, 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 10, driven wheel 9 is arranged between two driven gears 10 and with two driven gears 10 and all engages, two tooth bars 7 are connected with sheath pipe II 4 by pull-push piece 9 respectively away from gear 6 one end.

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 12, 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 the rear pull-push piece 9 that promotes respectively or pull, one of them of two pull-push piece 9 promotes sheath pipe II 4, another sheath pipe II 4, sheath pipe II 4 is rotated around bearing pin 5, swing, in the time that needs swing in the opposite direction, oppositely stir thumb wheel 12, 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. one kind can be bent and stretched intravesical sight glass, 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 (8), two tooth bars (7) and two pull-push piece (9) composition, 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 (10), driven wheel (8) is arranged between two driven gears (10) and with two driven gears (10) and all engages, two tooth bars (7) are connected with sheath pipe II (4) by pull-push piece (9) respectively away from gear (6) one end.

2. one as claimed in claim 1 can be bent and stretched intravesical sight glass, it is characterized in that: described pull-push piece (9) is plastic material.

3. one as claimed in claim 1 can be bent and stretched intravesical sight glass, it is characterized in that: described sheath pipe I (3) is set in shell (11).

4. one as claimed in claim 1 can be bent and stretched intravesical sight glass, it is characterized in that: described driven wheel (8) is connected with thumb wheel (12).