CN113331777A

CN113331777A - Angle-adjustable endoscope for obstetrics and gynecology department

Info

Publication number: CN113331777A
Application number: CN202110664676.0A
Authority: CN
Inventors: 魏星; 赵永林; 王颖; 张力
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-09-03

Abstract

The invention relates to the technical field of medical instruments and discloses an endoscope with an adjustable angle for obstetrics and gynecology department, which comprises an insertion tube, a control mechanism and a snake bone section, wherein the control mechanism and the snake bone section are respectively and fixedly connected with two ends of the insertion tube; the control mechanism comprises mounting boxes, and adjusting parts are mounted in the mounting boxes; the inner side of the snake bone section is provided with a traction part, and the snake bone section is in transmission fit with the adjusting part through the traction part. The invention uses the control mechanism to adjust the swing direction of the front end, the ratchet wheel meshing steering can not be reversed, and the problem that the front end swings uncontrollably to damage the internal organs of the patient is avoided.

Description

Angle-adjustable endoscope for obstetrics and gynecology department

Technical Field

The invention relates to the technical field of medical instruments, in particular to an endoscope with an adjustable angle for obstetrics and gynecology department.

Background

Endoscopes generally refer to medical instruments that enter a human body through various ducts to observe the internal conditions of the human body. Since a lesion which cannot be displayed by X-ray can be seen by an endoscope, it is an indispensable tool for a doctor to perform examination or an operation.

The snake bone of the existing endoscope for medical equipment is connected by a plurality of joints, and can swing in different directions by the traction force of a steel wire rope, but because the snake bone of the endoscope is flexible, a doctor is improper to operate or over-forcefully hurts, so that the tip of the endoscope collides with other organs in a patient body, the injury to other organs of the patient is caused, and the consequence is unreasonable.

The existing endoscope usually needs to be carried out step by step when the direction is switched, for example, the upper and lower angles are adjusted firstly, and then the left and right angles are adjusted, so that the adjusting process is troublesome, and the angle adjustment is not accurate enough.

Disclosure of Invention

The invention aims to provide an endoscope with an adjustable angle for obstetrics and gynecology department, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following scheme: the invention provides an endoscope with an adjustable angle for obstetrics and gynecology department, which comprises an insertion tube, a control mechanism and a snake bone section, wherein the control mechanism and the snake bone section are respectively and fixedly connected with two ends of the insertion tube;

the control mechanism comprises mounting boxes, and adjusting parts are mounted in the mounting boxes; the snake bone section is characterized in that a traction part is installed on the inner side of the snake bone section, and the snake bone section is in transmission fit with the adjusting part through the traction part.

Preferably, the snake bone inserting device comprises an inserting pipe, a control mechanism and a snake bone section, wherein the control mechanism and the snake bone section are fixedly connected to two ends of the inserting pipe respectively;

Preferably, four grooves are formed in the inner wall of the snake bone section at equal intervals in the circumferential direction, and each groove comprises two transverse grooves and two longitudinal grooves; the traction part comprises springs which are respectively installed in the grooves, two ends of each spring are respectively fixedly connected with two ends of the snake bone section, the length of each spring is the same as that of the snake bone section, one end of each spring, which is close to the front end, is fixedly connected with one end of the traction wire, and the other end of each traction wire is fixedly connected with the adjusting part.

Preferably, the mounting box comprises a first mounting box and a second mounting box which are vertically arranged, the adjusting parts are mounted in the first mounting box and the second mounting box, a supporting rod is fixedly connected in the first mounting box, the second mounting box is fixedly connected to the top end of the supporting rod, and a cover plate is detachably connected to one side, away from the first mounting box, of the second mounting box;

the traction wire in the transverse groove is fixedly connected with the adjusting part in the first mounting box, and the traction wire in the longitudinal groove is fixedly connected with the adjusting part in the second mounting box.

Preferably, the adjusting part comprises a first bearing seat and a second bearing seat which are fixedly connected in the mounting box, and the first bearing seats are arranged on two sides of the second bearing seat in a mirror symmetry manner;

a first step shaft is rotatably connected to the first bearing seat, a second step shaft is rotatably connected to the second bearing seat, a ratchet wheel is detachably connected to the first step shaft, a driving wheel is detachably connected to the second step shaft, and the driving wheel is matched with the ratchet wheel; the traction wire is fixedly wound on the first stepped shaft, and the second stepped shaft is provided with a control part.

Preferably, an arc-shaped through hole is formed in the ratchet wheel, the top end of the first step shaft is fixedly connected with a winding roller, and the traction wire is fixedly wound on the winding roller through the arc-shaped through hole.

Preferably, the control part comprises a worm wheel detachably connected to the second stepped shaft, the worm wheel is located between the driving wheel and the second bearing seat, a mounting seat is fixedly mounted in the mounting box, a worm is rotatably connected to the mounting seat, and the worm wheel is meshed with the worm;

the mounting box outside fixedly connected with angle scale, worm one end runs through in proper order the mounting box with angle scale and fixedly connected with control knob, the angle scale with control knob contact cooperation.

Preferably, the optical sensor is installed to the lens inboard, optical sensor, high definition digtal camera and cold light lamp all with control terminal electric connection.

Preferably, the length of the auxiliary pipe is-cm, the inner diameters of two ends of the auxiliary pipe are larger than the outer diameter of the insertion pipe by-mm, and the inner diameter of the middle section of the auxiliary pipe is larger than the inner diameter of the insertion pipe by-mm; and sealing rings are arranged at two ends of the auxiliary pipe and are positioned between the auxiliary pipe and the insert pipe.

Preferably, the traction wire is a steel wire.

The invention discloses the following technical effects:

the worm is manually controlled to drive the worm wheel to rotate, so that the control knob is prevented from reversing, the worm wheel and the worm are matched for use, the characteristic of reducing the input rotating speed is achieved, the phenomenon that the instantaneous rotating angle is too large due to manual operation, the instantaneous deflection angle of the tip is too large, and serious accidents occur is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a front view, partially in section, of the present invention;

FIG. 2 is a top view of a first mounting box of the present invention;

FIG. 3 is a cross-sectional view of a front view of a first mounting box of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

FIG. 5 is an enlarged view at C of FIG. 2;

FIG. 6 is an enlarged view of FIG. 1 at B;

FIG. 7 is a cross-sectional view of a snake bone segment of the present invention.

The device comprises a first mounting box-1, a support rod-2, a cover plate-3, a second mounting box-4, an insertion tube-5, an auxiliary tube-6, a snake bone section-7, a tip-8, a high-definition camera-9, a cold light lamp-10, a lens-11, a light sensor-12, a ratchet-13, a driving wheel-14, an angle scale-15, a control knob-16, a second stepped shaft-17, a mounting seat-18, a worm-19, an arc through hole-20, a spring-21, a traction wire-22, a first stepped shaft-23, an anti-reflection film-24, a worm wheel-25, a second bearing seat-26, a first bearing seat-27, a winding roller-28 and a groove-29.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides an endoscope with an adjustable angle for obstetrics and gynecology department, which comprises an insertion tube 5, a control mechanism and a snake bone section 7, wherein the control mechanism and the snake bone section 7 are respectively and fixedly connected with two ends of the insertion tube 5;

the control mechanism comprises mounting boxes, and adjusting parts are mounted in the mounting boxes; the inner side of the snake bone segment 7 is provided with a traction part, and the snake bone segment 7 is in transmission fit with the adjusting part through the traction part.

Furthermore, in order to reduce the insertion difficulty of the insertion tube 5 and reduce the physical and psychological pressure of a patient, the auxiliary tube 6 is arranged to assist the insertion of the insertion tube 5, so that in order to avoid the high-definition camera 9 from being polluted by secretions to cause camera blurring, a lens is arranged in the end part of the front end head 8, and an antireflection film is plated on the inner surface of the lens 11 in order to reduce the refraction of the lens 11 to light.

Furthermore, in order to control the snake bone section 7 to enable the snake bone section 7 to flexibly change angles, grooves 29 are uniformly formed in the snake bone section 7 in the axial direction, the transverse direction and the longitudinal direction, springs 21 are installed in the grooves 29, the springs 21 are in a compressed state initially, and the traction wires 22 are used for controlling the extension and contraction of the springs 21, so that flexible adjustment of the dispatching of the first end head 8 is achieved.

Further, in order to ensure that the angle of the front end head 8 can be adjusted in any direction, the first mounting box 1 and the second mounting box 4 are arranged to adjust the transverse angle and the longitudinal angle of the front end head 8 respectively.

Furthermore, in order to avoid the reversion of the driven wheel, the ratchet wheel 13 is selected for the driven wheel and the driving wheel, the characteristic that the meshing rotation direction of the ratchet wheel 13 is irreversible is utilized, a limiting device is not needed to limit the front end pair 8 after the angle adjustment, meanwhile, when the angle in any one transverse or longitudinal direction is adjusted, one side of the spring 21, which is pulled by the traction wire 22, is bent, and the other side of the spring is not stressed due to the fact that the ratchet wheel is not stressed, so that the traction wire 21 is not stressed, and when the front end 8 is bent, the traction wire on the side with the larger radius at the inflection point is not broken due to stress.

Furthermore, in order to prevent the traction wire 22 from being broken due to multiple bending of the traction wire 22 on the ratchet wheel 13, an arc-shaped through hole 20 is formed in the ratchet wheel 13.

Further, in order to reduce input torque, avoid because the improper operation certain moment of appearance torque is too big, lead to first end 8 transient bending angle too big, unnecessary medical damage appears, install worm wheel 25 on second step axle 17, and set up the worm 19 that uses with worm wheel 25 cooperation, the mounting box is stretched out to worm 19 one end, and connect control knob 16, control worm 19 through control knob 16 rotates, simultaneously the outer installation angle scale 15 of mounting box, be convenient for observe angle regulation.

Further, in order to determine the distance from the endoscope to the lesion in the lumen of the patient, the optical sensor 12 is installed in the lens 11 of the head 8, the optical sensor 12 receives the refracted light of the cold light lamp 10 and transmits the refracted light back to the control terminal, and the control terminal calculates the time of the incident light and the reflected light and calculates the distance from the endoscope to the lesion so as to facilitate the subsequent medical work.

Further, in order to improve the rigidity of the traction wire 22 and avoid the fracture of the traction wire 22 in the working process, the traction wire 22 is made of a steel wire with better rigidity and toughness.

Example 1: when the invention is used, firstly the auxiliary tube 6 is inserted into a preset inlet, secondly the first end 8, the snake bone segment 7 and the insertion tube 5 are inserted into a human body along the auxiliary tube 6 in sequence, the human body is stopped after a certain distance is reached, the angle adjustment direction is selected, when the angle adjustment in the horizontal direction is needed, the worm 19 is controlled by the rotation control knob 16 to rotate and simultaneously drive the worm wheel 25 to rotate, the worm wheel 25 drives the second stepped shaft 17 in the first mounting box 1 to rotate, the second stepped shaft 17 drives the driving wheel 14 to rotate, the driving wheel 14 is meshed with the ratchet wheel 13 to drive the ratchet wheel 13 to rotate, the ratchet wheel 13 drives the first stepped shaft 23 to rotate, the first stepped shaft 23 drives the winding roller 28 to rotate and pulls the traction wire 22 wound on the winding roller 28, the traction wire 22 applies pulling force to the spring 21, the spring 21 retracts, meanwhile, the stress of the other spring 21 in the horizontal direction under the compression state is reduced, and a force opposite to the traction wire 22 is generated, under the combined action of the two springs 21, the angle adjustment of the head 8 is realized, and the adjustment angle is determined through the angle scale 15.

According to the invention, the worm 19 is manually controlled to drive the worm wheel 25 to rotate, so that the control knob 16 is prevented from reversing, the worm wheel 25 and the worm 19 are matched for use, the characteristic of reducing the input rotating speed is achieved, and the condition that the instantaneous rotating angle is too large in manual operation, so that the instantaneous deflection angle of the first end 8 is too large, and further serious accidents occur is avoided.

Example 2: after the insertion tube 5 is inserted into a human body, the cold light lamp 10 emits light rays, the light rays irradiate the inner cavity of a patient through the lens 11 and the antireflection film 24, the light rays are refracted, the light sensor 12 receives the refracted light rays and transmits the light rays to the control terminal, and the control terminal calculates the linear distance from the head 8 to a lesion part by calculating the time difference between the incident light rays and the refracted light rays, so that subsequent treatment is facilitated.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. An endoscope with an adjustable angle for obstetrics and gynecology department is characterized by comprising an insertion tube (5), and a control mechanism and a snake bone section (7) which are respectively and fixedly connected with the two ends of the insertion tube (5);

the control mechanism comprises mounting boxes, and adjusting parts are mounted in the mounting boxes; the inner side of the snake bone segment (7) is provided with a traction part, and the snake bone segment (7) is in transmission fit with the adjusting part through the traction part.

2. An adjustable endoscope according to claim 1 and including: the utility model discloses a lamp, including intubate (5), snake bone section (7) have been cup jointed outward auxiliary tube (6), keep away from in snake bone section (7) the one end fixedly connected with first end (8) of intubate (5), install high definition digtal camera (9) and cold light lamp (10) in first end (8), first end (8) are kept away from lens (11) are installed to the inboard of snake bone section (7) one end, lens (11) inboard is plated and is equipped with antireflection coating (24).

3. An adjustable gynecological angle endoscope according to claim 2 and wherein: four grooves (29) are formed in the inner wall of the snake bone section (7) at equal intervals in the circumferential direction, and each groove (29) comprises two transverse grooves and two longitudinal grooves; the traction part comprises springs (21) which are installed in the grooves (29) respectively, two ends of each spring (21) are fixedly connected with two ends of the snake bone segments (7) respectively, the length of each spring (21) is equal to that of each snake bone segment (7), each spring (21) is close to one end of a traction wire (22) fixedly connected with one end of the corresponding front end head (8), and the other end of each traction wire (22) is fixedly connected with the corresponding adjusting part.

4. An adjustable gynecological angle endoscope according to claim 3 and wherein: the mounting box comprises a first mounting box (1) and a second mounting box (4) which are vertically arranged, the adjusting parts are mounted in the first mounting box (1) and the second mounting box (4), a supporting rod (2) is fixedly connected in the first mounting box (1), the second mounting box (4) is fixedly connected to the top end of the supporting rod (2), and a cover plate (3) is detachably connected to one side, far away from the first mounting box (1), of the second mounting box (4);

the traction wire (22) in the transverse groove is fixedly connected with the adjusting part in the first mounting box (1), and the traction wire (22) in the longitudinal groove is fixedly connected with the adjusting part in the second mounting box (4).

5. An adjustable gynecological angle endoscope according to claim 4 and wherein: the adjusting part comprises a first bearing seat (27) and a second bearing seat (26) which are fixedly connected in the mounting box, and the first bearing seat (27) is arranged on two sides of the second bearing seat (26) in a mirror symmetry mode;

a first stepped shaft (23) is rotatably connected to the first bearing seat (27), a second stepped shaft (17) is rotatably connected to the second bearing seat (26), a ratchet wheel (13) is detachably connected to the first stepped shaft (23), a driving wheel (14) is detachably connected to the second stepped shaft (17), and the driving wheel (14) is matched with the ratchet wheel (13); the traction wire (22) is fixedly wound on the first stepped shaft (23), and the second stepped shaft (17) is provided with a control part.

6. An adjustable gynecological angle endoscope according to claim 5 and wherein: an arc-shaped through hole (20) is formed in the ratchet wheel (13), a winding roller (28) is fixedly connected to the top end of the first stepped shaft (23), and the traction wire (22) is fixedly wound on the winding roller (28) through the arc-shaped through hole (20).

7. An adjustable gynecological angle endoscope according to claim 5 and wherein: the control part comprises a worm wheel (25) detachably connected to the second stepped shaft (17), the worm wheel (25) is located between the driving wheel (14) and the second bearing seat (26), a mounting seat (18) is fixedly mounted in the mounting box, a worm (19) is rotatably connected to the mounting seat (18), and the worm wheel (25) is meshed with the worm (19);

the mounting box outside fixedly connected with angle scale (15), worm (19) one end runs through in proper order the mounting box with angle scale (15) and fixedly connected with control knob (16), angle scale (15) with control knob (16) contact cooperation.

8. An adjustable gynecological angle endoscope according to claim 2 and wherein: lens (11) inboard is installed light sensor (12), high definition digtal camera (9) and cold light lamp (10) all with control terminal electric connection.

9. An adjustable gynecological angle endoscope according to claim 2 and wherein: the length of the auxiliary pipe (6) is 15-20cm, the inner diameters of two ends of the auxiliary pipe (6) are larger than the outer diameter of the insertion pipe (5) by 1-2mm, and the inner diameter of the middle section of the auxiliary pipe (6) is larger than the inner diameter of the insertion pipe (5) by 3-4 mm; and sealing rings are arranged at two ends of the auxiliary pipe (6) and are positioned between the auxiliary pipe (6) and the inserting pipe (5).

10. An adjustable gynecological angle endoscope according to claim 3 and wherein: the traction wire (22) is a steel wire.