KR20210141908A - Endoscope - Google Patents

Abstract

The present invention relates to an endoscope, and more specifically, to an endoscope, wherein a device for adjusting the tension of a wire for adjusting the bending of a fore-end bending part of the endoscope is configured simply, thereby reducing manufacturing costs and facilitating maintenance and repairs. The endoscope according to an embodiment of the present invention comprises: a housing (300) for forming an outer appearance; an insertion recess part (800) arranged at the front side of the housing (300) and configured to be inserted into an internal organ of a patient; a fore-end bending part (900) arranged at the end of the insertion recess part and configured to be able to change direction; a bending drive part (100) having one side coupled to the other side of a bending adjustment wire (140) connected to the pointed end of the fore-end bending part (900) to adjust the direction of the fore-end bending part (900); and a bending adjustment lever (200) coupled to the bending drive part (100) to adjust the bending of the fore-end bending part (900) by the driving force of a user.

Description

endoscope

The present invention relates to an endoscope, and more particularly, to an endoscope in which a device for adjusting the tension of a wire capable of adjusting the bending of a tip curved portion of the endoscope is simplified to reduce manufacturing cost and facilitate maintenance.

In general, palpation, auscultation, inspection, etc. are used as methods used by doctors to examine a patient's disease state in a hospital. With the help of devices such as ray, ultrasound, endoscope, etc., the state of internal organs can be examined directly by looking at the eyes.

For example, an endoscope is widely used as a device for checking a patient's health condition in a disease of the urology department, and this endoscope is injected into the body through the patient's urinary tract and causes inflammation of the patient's urinary tract and internal organs related to the urology department. Or, it has become an essential device for examining health conditions.

At this time, for an effective examination of the inside of the patient's body, in the imaging range of the endoscope, it must be configured so that it can be bent inside the body according to the intention of the examiner. examination is possible

The prior art of such an endoscope, as shown in FIG. 1, has a pair of wires connected to the tip for controlling the direction of the tip of the endoscope, and the direction of the tip is adjusted to one side through pulling or loosening of the wire. Or it is configured to control to the other side.

At this time, the wire for direction control must always maintain the tension in a taut state as control through tension becomes important in direction control. A tension adjustment groove is formed so as to be inserted, and a step is formed every predetermined distance in the tension adjustment groove into which the end insertion part is inserted, so that the position of the inserted end insertion part is changed to adjust the tension of the wire.

However, in the prior art wire, the end insertion part provided at the end of the wire is inserted into the tension adjustment groove to adjust the tension of the wire by step, so the coupling structure with the wire must be strong and the tension adjustment groove As the step of the stairway must also be firmly maintained, the structure of the device becomes very complicated and the cost required for manufacturing increases as the required durability increases, resulting in a problem in that the cost of the device itself is formed at a high price.

In addition, as the configuration for adjusting the tension presented in the prior art is configured to insert the end insertion part by the distance of the step, it is necessary to configure the distance of the step in detail for fine tension control, but the minimum thickness of the tip insertion part Even if you configure the distance of the step, the tension control is not continuous, so it may be difficult to make detailed adjustments.

In addition, as the tension is adjusted for each section of the step, the durability of the wire is rapidly damaged, so that when the tension is adjusted according to the movement of the step, the wire is easily broken or the device is damaged such as the step is crushed.

In addition, components such as chains and sprockets are additionally required to control the pulling or loosening of the wire, so that the structure of the device becomes complicated, heavy, and the manufacturing cost is also high.

In addition, due to the cost of the expensive apparatus, there is a problem in that the burden of the examination cost of the patient for performing the examination using the apparatus is increased.

Therefore, by simply configuring the fastening structure for adjusting the tension of the wire for controlling the direction of the end of the endoscope, the manufacturing cost is reduced, and the tension adjustment is performed continuously, so that it can be produced at a low cost, but the tension adjustment is possible. It is necessary to develop an endoscope with a structure that can also be controlled in detail.

Accordingly, an object of the present invention is to improve the conventional problems as described above, and an object of the present invention is to provide an endoscope in which the manufacturing cost is reduced and the cost is saved by simply configuring the structure of a device for adjusting the tension of the wire.

Another object of the present invention is to provide an endoscope in which productivity is improved as the configuration of the device is simplified.

Another object of the present invention is to provide an endoscope having the effect of extending the life of a wire by changing it to have a finely adjustable tension control device and a continuous tension control structure.

In addition, as the manufacturing price of the device becomes cheaper, the selling price can also be lowered inexpensively, so an object of the present invention is to provide an endoscope that can be expected to increase the penetration rate of the device for examination.

Another object of the present invention is to provide an endoscope capable of reducing the cost of a patient's examination as the selling price of the device is lowered and thus the examination cost of a patient who is to be examined can be set inexpensively.

In order to achieve the above technical object, the endoscope according to an embodiment of the present invention, the housing 300 constituting the exterior of the endoscope; and an insertion recess 800 provided on the front side of the housing 300 and configured to be inserted into a patient's body; a tip curved part 900 configured to be positioned at the end of the insertion recess 800 to enable direction change; A curved driving part 100 for adjusting the direction of the tip curved part 900 by rotating the other side of the curved control wire 140 having one side connected to the tip of the tip curved part 900 by winding or unwinding it; A bending control lever that is coupled to the curved driving unit 100 and transmits a driving force by a user to the curved driving unit 100; and a tension control unit for adjusting the tension of the bending control wire 140 (120), but the tension control unit 120 is configured in a structure installed on the pulley unit 130 for fixing the other side of the bending control wire (140).

In addition, in the endoscope according to an embodiment of the present invention, the tension adjusting unit 120 includes a knob head portion having a tool-type groove 121a so as to transmit an external force for adjusting the tension using a tool for adjusting the tension ( 121) and the knob post 122 extending from the knob head 121 and having a wire insertion and fixing hole 122a for fixing the other side of the curvature control wire 140. .

In addition, in the endoscope according to an embodiment of the present invention, the curved driving part 100 has the same rotation axis as the pulley part 130 for fixing the other side of the curved control wire 140 and the unwinding part 130 . It is configured to include a lock mount unit 150 provided, and the tension adjusting unit 120 is fastened through a fixing fastening hole 151 formed in the lock mounting unit 150 to the knob head unit 121 . By pressing the upper surface of the tension control unit 120 to friction-resist the rotation, the tension control member 124 may be further provided with a structure.

In addition, in the endoscope according to an embodiment of the present invention, the curved driving unit 100 includes the lock mount unit ( 150) and the pulley part 130 may be configured to further include a locking fastening member 153 for mutually tensile coupling.

In addition, in the endoscope according to an embodiment of the present invention, the curved driving part 100 has the same rotation axis as the pulley part 130 for fixing the other side of the curved control wire 140 and the unwinding part 130 . and a lock mount unit 150 provided, wherein the tension adjusting unit 120 is a tool-type fitting groove for adjusting the tension of the bending control wire 140 on the upper surface of the knob head unit 121 . A structure in which a 121a is formed, and a side fixing member insertion hole 121d for fastening the side fixing member 125 for controlling the rotation of the tension adjusting part 120 to the side surface of the knob head part 121 is formed can be composed of

In addition, in the endoscope according to an embodiment of the present invention, the insertion recessed portion 800 so that the curved control wire 140 connected to the tip of the tip curved portion 900 can smoothly move through the insertion recessed portion 800 . An auxiliary guide part 310 for guiding the movement of the curve control wire 140 between the entry part and the curve driving part 100 may be additionally provided.

As described in the above configuration and operation, the endoscope device according to the present invention has the effect of reducing the manufacturing cost and the cost by simply configuring the structure of the device for adjusting the tension of the wire.

In addition, as the configuration of the device is simplified, productivity is improved and maintenance is convenient.

In addition, it has the effect of extending the life of the wire by changing it to have a finely adjustable and continuous tension control structure in the tension control device.

In addition, as the manufacturing price of the device becomes cheaper, the selling price can also be lowered inexpensively, thereby having the effect of expecting an increase in the penetration rate of the device for inspection.

In addition, as the selling price of the device is lowered, the examination cost of the patient who is to be tested can be set at a low cost, so that the examination cost of the patient can be reduced.

In addition, as foreign-made endoscopes account for more than 90% of the total market share of the endoscope, it is possible to localize the endoscope through the development of a device for adjusting the tension of the wire, which can be expected to benefit the national economy. have.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exemplary view for showing a brief description of the prior art in the relevant technical field.
Figure 2 is an external perspective view showing through the perspective of one side cover with respect to the overall external appearance of the endoscope according to an embodiment of the present invention.
3 is a perspective view of a curved driving part of the endoscope according to an embodiment of the present invention;
4 is a detailed view of the tension control unit for explaining the structure of the tension control unit of the endoscope according to an embodiment of the present invention.
5 is a detailed view of a curved driving part for detailed explanation of the curved driving part of the endoscope according to an embodiment of the present invention.
6 is an external view of the curved driving part for showing the overall structure of the curved driving part of the endoscope according to an embodiment of the present invention.
7 is a cross-sectional view of a curved driving part of the endoscope according to an embodiment of the present invention.
8 is a modified embodiment of the endoscope according to an embodiment of the present invention.
9 is a perspective view of a tension adjusting unit of another modified embodiment of the endoscope according to an embodiment of the present invention.
10 is a detailed structure of another modified embodiment of the endoscope according to an embodiment of the present invention.
11 is a cross-sectional view of another modified embodiment of the endoscope according to the embodiment;

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. "Including cases where In addition, when a part "includes" a certain component, this means that other components may be further provided, rather than excluding other components, unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings so that a person skilled in the art can easily implement it.

First, looking at each of the drawings, FIG. 2 is an external perspective view showing the entire external shape of the endoscope through a perspective view with respect to one side cover according to an embodiment of the present invention. (300) and; an insertion recess 800 provided on the front side of the housing 300 and configured to be inserted into a patient's body; a tip curved portion 900 positioned at the end of the insertion recess 800 and configured to change direction; A curved driving part 100 for adjusting the direction of the tip curved part 900 by rotating the other side of the curved control wire 140 connected to the tip of the tip curved part 900 by winding or unwinding one side thereof; A curved control lever coupled to the curved driving unit 100 to transmit a driving force by a user to the curved driving unit 100; showing the overall structure of the endoscope and briefly explaining the operating principle of the device It is a drawing shown for

3 is a perspective view of the curved driving part 100 of the endoscope according to an embodiment of the present invention, the base part 110 that is the basis of the curved driving part 100, and configured to be rotatable on the upper surface of the base part 110 The pulley part 130 to be a pulley part 130 is located on the pulley part 130 and the tension control part 120 to which the curved control wire 140 is fastened, but located on the upper part of the pulley part 130, the tension control part 120 ), a lock mount unit 150 configured so that the upper part of the lock mount unit 150 can be inserted; It is a view showing the driving gear unit 180 that transmits the operating force of the bending control lever 200, and is shown for a detailed description of the wire/pulley driving method of the curved driving unit 100. As shown in FIG.

4 is a detailed view of the tension control unit 120 for explaining the structure of the tension control unit of the endoscope according to an embodiment of the present invention. A tool-shaped fitting groove 121a formed along the outer circumferential surface of the knob head portion 121, the knob post 122 formed at the lower end of the knob head portion 121, and the knob post 122 formed on the outer circumferential surface of the knob post 122. A wire insertion fixing hole 122a configured to pass through the knob post 122 is provided, and the tool 121c for adjusting the tension is inserted into the tool type fitting groove 121a to adjust the rotation of the tension adjusting unit 120 and the The structure and operation of the tension control unit 120 for adjusting the tension of the tension control unit 120 as showing the structure of the knob rotation shaft 123 formed on the base surface of the knob column 122, which serves as a rotation axis in rotating the tension control unit 120 It is a drawing shown to explain in detail.

5 is a detailed view of the curved driving part 100 for detailed explanation of the curved driving part 100 of the endoscope according to an embodiment of the present invention, and FIG. 5 (a) is a knob rotation hole provided in the pulley part 130. It is a view for showing 131 , and FIG. 5 ( b ) shows in detail the structure in which the tension adjusting unit 120 is positioned on the pulley unit 130 to adjust the tension of the curved control wire 140 . As shown, a pair of tension control units 120 is configured to be inscribed on the outer circumferential surface of the pulley unit 130 to adjust the tension of the bending control wire 140 according to each rotational direction. It is a drawing shown for detailed description.

6 is an external view of a curved driving part for showing the overall structure of the curved driving part 100 of the endoscope according to an embodiment of the present invention, and showing the detailed structure through a perspective view, a plan view, and a front view with respect to the curved driving part 100 and, in the lock mount unit 150 configured to allow the tension control unit 120 to be inserted, a fixing fastening hole 151 for fixing the adjusted tension of the tension control unit 120 is shown, It is a diagram illustrating a cross-sectional formation point for displaying a cross-sectional view of the driven gear unit 170 and the driving gear unit 180 to help understand the structure of the curved driving unit 100 of the present invention.

7 is a cross-sectional view of the curved driving part cut along the line BB of FIG. 6 to help the understanding of the curved driving part 100 of the endoscope according to an embodiment of the present invention. The part 150 is positioned, the pulley part 130 disposed on the lock mount part 150 , the tension adjusting part 120 positioned between the lock mount part 150 and the pulley part 130 , and A cross-section of the coupling structure of the driven gear unit 170 fastened to the upper portion of the lock mount unit 150 is shown. ) is a diagram shown in order to help understanding of the invention by showing in detail the structure for the tension control fixing member 124 coupled to the tension control unit 120 to have a fastening force.

FIG. 8 is a modified view of a cross-sectional view of a curved drive part cut along lines AA and BB of FIG. 5 in order to explain a two-step locking structure for added tension control of an endoscope according to a modified embodiment of the present invention, wherein the lock mount part A fixed fastening hole 151 formed in 150 and into which the tension adjusting and fixing member 124 can be inserted, and formed adjacent to the fixed fastening hole 151 in the circumferential direction of the locking mount unit 150 . The structure of the lock hole 152 formed along As another embodiment of the additional structure that can prevent the frictional force acting on the corresponding point from being reduced as the upper end of the adjusting part is worn by the rotation of the tension adjusting fixing member, it is another embodiment shown to help the understanding of the invention am.

9 is a perspective view of a tension adjusting unit with a changed structure, showing the structure of the tool-type groove and the side fixing member insertion hole formed on the side of the knob head part with different positions and the above It is a drawing shown to help understanding the structure of the side fixing member inserted into the side fixing member insertion hole to prevent rotation of the tension control unit.

10 is an external view showing the shape of a curved driving part having a tension control part with the structure shown in FIG. 9 for the other modified example of an embodiment of the present invention. As the shape of the tension control part is changed, the structure is changed. It is a diagram shown to help understand the structure of the modified driven gear unit and the curved driving unit including the same.

11 is a modification of the cross-sectional view taken along lines AA and BB among the shapes of the curved driving part of FIG. 10 for the other modified embodiment of one embodiment of the present invention, and is fastened to prevent rotation of the tension control part It is a view for helping understanding of the structure of the side fixing member and the locking mount part configured to be inserted into the side fixing member.

2 to 11, the endoscope according to an embodiment and a modified embodiment of the present invention is a device of the endoscope 1000 for visually examining internal organs of a patient's body, a housing 300 corresponding to the exterior; an insertion recess 800 provided on the front side of the housing 300 and configured to be inserted into the patient's internal organs; a tip curved portion 900 positioned at the end of the insertion recessed portion 800 and configured to change the bending direction; a curved driving part 100 to which one side is connected to the tip of the tip curved part 900 to control the curvature of the tip curved part 900 and the other side of the curved control wire 140 is fastened; A curved control lever 200 is fastened with the curved driving part 100 to control the bending of the tip curved part 900; may be included and configured.

At this time, in the inner space of the housing 300, the basic control module body 600 for transmitting the image of the endoscope, the lighting unit 500 for adjusting the brightness inside the body when the endoscope is photographed, the lighting control module 510, etc. The control button unit 610 related to the operation of the control module body 600 and the operation of the lighting may be disposed on the housing 300 side.

In addition, equipment such as the endoscope of the present invention is a device for examining the patient by being put inside the body, and the insertion recess 800 is basically provided with a curved control wire, an optical waveguide, and the like.

In addition, in order to perform a simple treatment inside the patient's body, the insertion recess 800 is used for a water tube for injection of water or medicine, an air tube for supplying air or gas, a biopsy of the body, etc. Auxiliary devices such as forceps may be further positioned, and these devices may be selectively inserted and disposed through the treatment instrument insert 700 that may be formed on the side of the body and connected to the outside.

On the other hand, in the field related to the endoscope in order to help the understanding of the invention, as shown in FIG. 2 , briefly looking at the control structure of the tip curved part 900, the same as the tip curved part 900 is located inside the patient's body. In order to adjust the direction of the end of the endoscope for entering and examining, one wire is usually fastened to one side of the tip inside the conduit portion of the tip curved part 900, and this wire is called the first wire 140a, and the The other end of the tip inside the conduit portion of the curved tip 900, that is, the other wire is fastened to the point where the first wire 140a is fastened and the point perpendicularly symmetrical to the center of the conduit, and this is the second wire 140b ), the tip curved portion 900 is configured to adjust the direction as the tip is bent in a bent form as the first wire 140a and the second wire 140b are pulled and released.

For example, when the first wire 140a is pulled and the second wire 140b is released at the same time, the tip curved portion 900 is bent in one direction so that the tip of the conduit portion is bent in one direction. , Conversely, when the second wire 140b is pulled and the first wire 140a is released at the same time, the tip curved portion 900 is bent in the other direction to enable direction control in a curved form.

Since the detailed description of the configuration and technology related to the direction adjustment method of the tip curved part 900 corresponds to the known technology, in the present invention, as described above as a reference technology to help the understanding of the curved driving part 100, which is a main feature, It will be briefly described together, and detailed description will be omitted.

First, looking at the configuration corresponding to an embodiment of the present invention, as shown in FIG. 2 , the bending control wire 140 configured so that one side is connected to the tip of the tip curved part 900 is the first described above. It is composed of a wire 140a and a second wire 140b and is located inside the body and the other side of the curve control wire 140 is connected to and fixed to the curve driving unit 100 located at the rear of the body. can

At this time, the curved driving unit 100 is composed of a pair of meshing gears and can be divided into a driven gear unit 170 and a driving gear unit 180, respectively, and the driven gear unit 170 includes the driven gear unit ( 170) may be additionally provided with a locking mount unit 150 configured to rotate in a shape consistent with that of 170). When it is rotated, the lock mount unit 150 is configured to rotate, so that the curve control wire 140 can be operated.

To describe the operation of the curved driving unit 100 in more detail, it rotates together with the rotation of the curved control lever 200 that can be fastened to the driving gear unit 180 from the outside of the housing 300 forming the exterior. The driven gear unit 170 may be configured in such a way that a driving gear unit 180 configured to 150) is provided and may be configured to rotate integrally with the driven gear unit 170 .

Accordingly, when the curved control lever 200 is rotated, the driving gear unit 180 is rotated, and the driven gear unit 170 provided in the form of meshing with the driving gear unit 180 is rotated, and the The lock mount unit 150 connected to the driven gear unit 170 operates in a rotating manner.

On the other hand, in detail with respect to the structure in which the other side of the curve control wire 140 in which one side is fastened to the tip of the tip curved part 900 is fastened to the circumference of the lock mount part 150, the curve control wire 140 ) is the first wire 140a and the second wire 140b for each wire constituting the curvature control wire 140, at one point of the circumference of the lock mount unit 150. The other side of the first wire 140a is fastened, and the other side of the second wire 140b is fastened to a second point symmetrical with respect to the circle center of the lock mount unit 150 at one point of the circumference. may be of the form.

Accordingly, according to the rotational movement of the driven gear unit 170 , the first wire 140a and the second wire 140b are adjacent to the fastening point of the lock mount unit 150 , the lock mount unit 150 . ), while rotating along the outer circumferential surface, the rest of the area may be configured in a straight-line motion.

As such, in the configuration for the rotational operation of the locking mount unit 150 through the curved control lever 200, the device for transmitting the rotational motion is formed of a simple wire member and is not complicated, so the conventional chain and sprocket Compared to the provided structure, the manufacturing cost is reduced and the weight of the device is reduced.

On the other hand, each of the first wire 140a and the second wire 140b has one side fixed to each other in a symmetrical shape about the rotation axis of the lock mount unit 150 , and the other side of each other side is the tip curved part 900 . ) and the distance between the first wire 140a and the second wire 140b respectively fastened to the tip side of the tip curved part 900, and the lock mount part 150). The distance between the fastening points of the first wire 140a and the second wire 140b positioned at is configured differently.

In addition, the first wire 140a and the second wire 140b are connected to the tip of the curved tip part 900 from the distal end of the curved tip part 900 , which is an entrance to the lock mount part 150 . ) can be formed in a straight line up to the fastening point.

That is, the first wire 140a and the second wire 140b are fastened to each other in a tapered form from the center of the lock mount part 150 as a starting point, and become narrower toward the end of the tip curved part 900 . It is composed of, and is positioned in a taut state as the tensile force is provided.

However, if the first wire 140a and the second wire 140b are formed in a straight line from the end of the tip curved part 900 to the fastening point of the lock mount part 150, The inner end has a structure in which the first wire 140a and the second wire 140b come into contact.

At this time, when the first wire 140a and the second wire 140b are in contact with the inside of the tip curved part 900, as described above, the first by rotation of the driven gear part 170 When the wire 140a and the second wire 140b move in a straight line, the inner end of the tip curved part 900 and the first wire 140a and the second wire 140b are caused by friction between each other. Damage or the like may occur, and the operation of the device may not be performed smoothly.

Accordingly, the first wire 140a and the second wire 140b pass through the inside of the housing 300 , and the first wire 140a and the second wire are disposed at the ends of the curved tip part 900 . The distance between the wires is narrowed so that the (140b) does not come into contact, but the first wire (140a) and the second wire (140b) are fastened to the lock mount part 150 so that no damage occurs during operation. An auxiliary guide unit 310 to prevent it may be additionally provided.

In more detail, in the passage through which the first wire 140a and the second wire 140b are positioned inside the auxiliary guide part 310, the distal end of the curved tip part 900 and The distance between the passage through which the first wire 140a and the second wire 140b pass in the passing direction is formed to be narrower than the inner end of the tip curved part 900, but the distal side of the tip curved part 900 and As it is formed to be in a straight line, the first wire 140a and the second wire 140b are parallel to the distal passage of the tip curved part 900 when positioned inside the distal side of the tip curved part 900 . It is preferable to be configured so that it can be disposed.

In addition, in the passage through which the first wire 140a and the second wire 140b are located inside the auxiliary guide portion 310, the passage through the fastening point of the lock mount portion 150 is configured such that the interval between the first wire 140a and the second wire 140b is widened, so that the first wire 140a and the second wire 140b have a curved shape in the outer direction of each passage. It is preferable to be configured so that movement within the auxiliary guide part 310 can be smoothly performed during the straight motion of 140b.

In more detail, it is preferable that a pair of rollers having grooves formed therein through which the first wire 140a and the second wire 140b are externally circumscribed are provided in the outer direction of each passage, and the first When the wire 140a and the second wire 140b move in a straight line, the pair of rollers are configured to rotate in a form in contact with the outer direction of the first wire 140a and the outer direction of the second wire, respectively. Accordingly, it is possible to provide an effect of preventing damage due to friction.

On the other hand, as shown in FIG. 3 , the curved driving part 100 configured to operate the device by fastening the curved control wire 140 composed of the first wire 140a and the second wire 140b is detailed with respect to Looking at it, the base part 110, which is the basis of the curved driving part 100, the mount hole 111 formed on the upper part of the base part 110, and the mount hole 111 are spaced apart from each other by a predetermined distance. The formed driving gear hole 112 may be provided, and the lock mount unit 150 may be provided in a form coupled through a rotatable shaft in the mount hole 111 , and the driving gear hole 112 has The driving gear unit 180 may be rotatably coupled, and the driven gear unit 170 of the lock mount unit 150 and the gear may be engaged with each other.

At this time, the driven gear unit 170 provided in the lock mount unit 150 may be provided in a form integrally rotatable with the lock mount unit 150 as described above. In the vicinity of the circumference, the first wire 140a and the second wire 140b constituting the curvature control wire 140 are respectively fastened, and a tension control unit 120 capable of adjusting the tension of the fastened state may be provided. .

In addition, a pulley unit 130 fixedly coupled to the lock mount unit 150 is provided at the lower end of the tension control unit 120 , and the first wire 140a fastened to the tension control unit 120 and The second wire 140b is wound or unwound in a circumscribed shape on the outer circumferential surface of the pulley part 130 when the lock mount part 150 is rotated.

In more detail, the first wire 140a and the second wire 140b constituting the curvature control wire 140 at the point where the lock mount unit 150 does not rotate, that is, at the initial point, are as described above. It has a tapered shape, and in this case, when the lock mount part 150 rotates clockwise, the first wire is in contact with the outer peripheral surface of the pulley part 130 provided at the bottom of the lock mount part 150 . is configured to be pulled with respect to the tip curved part 900, and the second wire 140b is rotated in a clockwise direction by the tension adjusting part 120 fastened to the locking mount part 150. As a result, the position is moved from the rear of the housing 300 to the front, and the wire is released.

In addition, when the lock mount unit 150 rotates in a counterclockwise direction, the pulling and releasing of the first wire 140a and the second wire 140b operate in a manner in which they are reversed. It is possible to implement a wire/pulley driving method capable of controlling the bending direction to one side or the other side of the tip curved part 900 according to the rotation direction of the lock mount part 150 .

At this time, in adjusting the bending direction of the tip curved part 900 according to the rotation of the locking mount part 150 , the wire generated in the structure in which the first wire 140a and the second wire 140b are fastened. Since the tension of the wire/pulley is related to the precision of the device and the fineness of the adjustment in the wire/pulley driving method, it is necessary to always maintain a certain amount or more within a certain range.

Therefore, it is preferable that the tension control unit 120 positioned on the circumference of the lock mount unit 150 has a structure capable of adjusting the tension of the first wire 140a and the second wire 140b. .

In addition, as shown in FIG. 4 , when the tension adjusting unit 120 is described in more detail, the knob post 122 having a predetermined diameter and formed in a circular shape, and the other side from the outer circumferential surface of one side of the knob post A wire insertion and fixing hole (122a) in the form of penetrating the center of the knob post (122) is provided on the outer circumferential surface, and the lower surface of the knob post (122) protrudes downward from the lower surface of the knob post (122). A knob rotation shaft 123 having a diameter smaller than that of the knob post 122 is formed concentric with the knob post 122 .

In addition, on the upper portion of the knob post 122, the knob head portion 121, which is concentric with the knob post 122, and has a diameter thicker than the diameter of the knob post 122, may be formed to protrude upward. In addition, the knob head portion 121 may have a tool-type fitting groove (121a) formed at a plurality of positions along the circumference, and the tool-type fitting groove (121a) is located on the circumference of the knob head portion (121). It is preferable to be formed to face the center of the head part 121 .

At this time, the positions of the tool-type fitting groove 121a and the wire insertion and fixing hole 122a provided in the tension adjusting unit 120 are not limited by the embodiment of the present invention, and the tool-type fitting groove 121a and the wire Various modifications to the position of the insertion fixing hole 122a are possible, and it should be construed as still included in the scope of the present invention in that it is a configuration for adjusting tension.

As shown in FIG. 5 , the tension control unit 120 formed in this way is configured to be positioned between the lock mount unit 150 and the pulley unit 130 provided at the base of the lock mount unit 150 . However, it is preferable that the tool for adjusting the tension (121c) be inserted into the tool-type fitting groove (121a) to be rotated.

As shown in FIG. 5( a ), the pulley part 130 has a knob rotation hole 131 in which the knob rotation shaft 123 of the tension adjustment part 120 is inserted and rotated at a point in the circumferential direction. One is formed, and at the formation point of the knob rotation hole 131, the other knob rotation hole 131 may be additionally formed at a point symmetrical with respect to the center of the pulley part 130. .

In the form in which the tension adjusting unit 120 is inserted into the pair of knob rotating holes 131 in the pulley unit 130 , the position of the knob rotating hole 131 is determined by the knob head unit 121 . ) is configured to be inscribed with the circumference of the lock mount part 150 , and the circumference of the knob post 122 is provided inscribed at a position inscribed with the circumference of the pulley part 130 or the pulley part (130) It is preferable to be provided at a position that has entered the center more than the circumference.

In addition, the knob post 122 is inserted in the upper portion of the knob rotation hole 131 in the pulley part 130 to form a space wider than the diameter, and narrower than the diameter of the knob head part 121 . It is preferable that a space of the form can be formed.

More preferably, in a state in which the tension adjusting unit 120 inserts the knob rotating shaft 123 into the knob rotating hole of the pulley unit 130, the bending control wire 140 is inserted into the wire insertion and fixing hole 122a. ) is preferably configured to be able to rotate in the inserted state.

In addition, when the knob rotation shaft 123 of the tension control unit 120 is inserted into the knob rotation hole 131 of the pulley part 130, the knob post 122 formed on the knob rotation shaft 123 is the It is preferable to be configured to be positioned in a form inscribed on the outer circumferential surface of the pulley part 130 .

In this case, after each other side of the curve control wire 140 is fastened to the wire insertion fixing hole 122a that may be formed on the knob post 122 and the tension is adjusted, the curve driving unit 100 is When the pulley part '130 is manipulated to rotate, the curvature control wire 140 is inserted into a groove formed on the outer peripheral surface of the pulley part 130 to be gently pulled or released.

Accordingly, as shown in FIG. 5( b ), the tension adjusting unit 120 is rotatably positioned on the pulley unit 130 about the knob rotation shaft 123 , and the wire insertion fixing hole 122a ), the curved control wire 140 inserted into the tension control unit 120 is wound around the outer peripheral surface of the knob column 122 when the tension control unit 120 rotates clockwise or counterclockwise around the knob rotation shaft 123, or The length may be adjusted in the form of unwinding, and accordingly, the tension of the bending control wire 140 may be adjusted.

At this time, the knob head part 121 may be configured to be inserted into the bottom surface of the lock mount part 150 , and as shown in FIG. 6 , the lock mount part 150 has a tension adjusting part 120 . ), a fixing hole 151 into which a tension adjusting fixing member 124 capable of pressing the knob head 121 in the vertical direction can be inserted may be provided at a point where the knob head upper portion 121b is located. have.

In addition, as shown in FIG. 7 , the tension control unit 120 is securely fixed in a state in which the tension control unit 120 is rotated in a direction in which the bending control wire 140 can be pulled to adjust the tension of the bending control wire 140 . It is preferable that the fixing and fastening hole 151 is located at a point close to the circumference of the knob head upper part 121b that is far away from the rotation center of the tension adjusting part 120 so as to be possible.

In addition, the tension adjusting fixing member 124 inserted into the fixing fastening hole 151 is preferably made of a material or structure that can firmly press and fix the knob head upper part 121b, and the knob head upper part ( A structure capable of increasing frictional force, such as a hatching structure, may be additionally provided to 121b), or the end of the tension adjusting fixing member 124 is configured in a protruding form to the upper portion of the knob head (121b) It may be configured in a form in which a groove is gripped when pressing.

In addition, as another embodiment, the tension adjusting fixing member 124 or the knob head upper part is at least partially made of a material that can exert a strong frictional force when in contact, such as rubber, silicone, or urethane, etc. on the knob head upper part 121b. , it is preferable to configure the knob head upper portion (121b) to be vertically pressed to prevent slippage.

The above-described contents of the knob head upper portion 121b and the tension adjusting fixing member 124 correspond to an embodiment of the present invention, and using the same structure as the tension adjusting unit 120 of the present invention, In configuring to adjust the tension of the bending control wire 140, the structure of the contact surface of the knob head upper portion (121b) and the tension control fixing member 124 can be configured by modifying various embodiments, and the tension If it is a modified embodiment that meets the purpose of preventing loosening of the adjustment unit 120, it should be interpreted as being included in the scope of the present invention.

On the other hand, the coupling structure of the driven gear unit 170 , the lock mount unit 150 , and the pulley unit 130 is the lock mount unit 150 and the pulley according to the rotation of the driven gear unit 170 . It is preferable that the part 130 has a coupling structure that rotates integrally with the driven gear part 170 .

As an exemplary coupling structure, the coupling structure of the driven gear unit 170 and the lock mount unit 150 includes two or more screw grooves positioned on a straight line, so that the driven gear unit 170 and the lock mount unit are provided. The unit 150 may be formed to be integrally formed, in which case the rotational force generated in the driven gear unit 170 is located at the boundary point between the driven gear unit 170 and the lock mount unit 150 . It is necessary to consider that there is a possibility that the screw may be broken due to the shear force acting on the screw, which may cause difficulties in the maintenance of the device.

Therefore, more preferably, a polygonal pole such as a triangle or a square and a corresponding structure are formed around the axis of rotation of the driven gear unit 170 and the lock mount unit 150 rather than a general cylindrical coupling structure. It is preferable to configure it to be combined.

Similarly, the shaft located at the base of the lock mount unit 150 has a cylindrical shape only for the portion for being inserted and rotating in the base part 110, but the cylindrical shape is the mount hole of the base part 110 ( 111) is preferably formed to be smaller than the size of the bush bearing 160 inserted into it, and its upper portion is configured in the form of a polygonal pole so that it coincides with the polygonal pole of the lock mount unit 150 at the center of the pulley part 130 . It is preferable that the pulley part 130 is configured to be coupled to the lower end of the lock mount part 150 by forming a groove in the form of a groove.

In addition, in the structure coupled around the axis of rotation, each member may have a tolerance such as fitting or interference fitting by minimizing the tolerance, but spaced apart a predetermined distance around the axis of rotation to form a screw hole, It is preferable to form a double coupling structure in which a screw coupling structure is additionally provided.

In this way, the coupling structure of the driven gear unit 170, the lock mount unit 150, and the pulley unit 130 is firmly maintained when coupled. By releasing the configuration so that only the corresponding part can be replaced, it is possible to provide the effect of reducing the cost in the maintenance of the device.

In addition, the driven gear unit 170, the lock mount unit 150, and the driving gear unit 180 for rotation of the driven gear unit 170 and the driving gear unit 180 for rotation of the rotation shaft provided in the cylindrical point for rotation is formed at the point of wear due to rotation of the device. Each bush bearing 160 for prevention and lubrication provision and maintenance is preferably configured so that it can be inserted.

On the other hand, as shown in FIG. 8 , between the lock mount part 150 and the pulley part 130 , a lock hole for inserting and fastening the lock fastening member 153 separately from the structure for screw coupling described above. A 152 and a locking hole 132 may be formed in the lock mounting part 150 and the pulley part 130, respectively.

The locking hole 152 and the locking fastening hole 132 to which the locking fastening member 153 are fastened are formed at a position adjacent to the fixed fastening hole 151 formed so that the tension adjusting and fixing member 124 is inserted. More preferably, it is preferable that one or more are formed in a predetermined spaced apart position such as a circumferential direction or a center-to-axis distance in the position where the fixing and fastening holes 151 are formed.

Previously, in the case of the tension control fixing member 124 inserted into the fixing and fastening hole 151, the tension control unit in a manner to increase the frictional force by applying an axial load in a manner that pushes the knob head upper portion 121b Although configured in a form to prevent rotation of the tension control member 124, the contact between the end of the tension control fixing member 124 and the upper knob head 121b rather than the increase in frictional force during the fastening and pressing process of the tension control fixing member 124 There is a possibility that it is difficult to increase the frictional force due to abrasion of the contact surface due to the rotational friction slip generated by the rotation of the tension adjusting fixing member 124 at the point, or there is a possibility that the frictional force is reduced rather than the result, and also, the locking mount part 150 There is a disadvantage in that excessive deformation may occur in a form in which the distance between the pulley part 130 and the pulley part 130 is spaced apart.

Accordingly, in order to alleviate such disadvantages, the locking hole 152 and the locking fastening hole 132 are formed so that the locking and fastening member 153 is formed between the locking mount part 150 and the pulley part 130 . It is preferable to further provide a fastening structure that can make the contact state firm.

That is, first, the end of the tension adjusting and fixing member 124 protrudes to first contact the knob head upper part 121b by rotating and fastening the tension adjusting and fixing member 124, and then using the locking and fastening member 153. When the lock mount part 150 and the pulley part 130 are further fastened to be coupled to each other, the tension adjustment part 120 located between the lock mount part 150 and the pulley part 130 will also It is fastened to be firmly coupled to the lower portion of the lock mount unit 150 . This provides an effect of increasing the contact force between the end of the tension control fixing member 124 penetrating through the lock mount unit 150 and the knob head upper portion 121b, which is the top end of the tension control unit 120 .

On the other hand, it is preferable that the lock hole 152 and the lock fastening hole 132 are formed in a position adjacent to the fixed fastening hole 151 and spaced apart by a predetermined distance in consideration of the thickness of the bolt to be inserted.

In addition, as for another modified embodiment of one embodiment of the present invention, as shown in FIG. 9 , the tension adjustment unit 120 has a tool-type groove for adjusting the tension of the curved adjustment wire 140 ( 121a) may be formed in the upper part of the knob head 121b like a straight screwdriver groove.

In addition, a side fixing member reinsertion hole 121d different from the tool type fitting groove 121a is formed on the circumference of the knob head 121, and a side fixing member 125 is formed in the side fixing member insertion hole 121d. ) may be fastened in a screw-coupled form, and a tool groove such as a straight screwdriver groove may be formed in the upper portion of the side fixing member 125 as well.

That is, for example, the tension control unit 120 adjusts the rotation of the tension control unit 120 in a structure that can adjust the tension using a flat screwdriver and inserts the side fixing member 125 from the side. When fastened, the tension control unit 120 may be configured not to rotate.

More specifically, as shown in FIG. 10 , the lock mount unit 150 configured to be positioned between the tension adjusting unit 120 has an upper portion of the knob head upper portion 121b of the tension adjusting unit 120 . ) through which the structure may be changed to be positioned on the same surface as the upper surface of the lock mount unit 150 .

In addition, a hole may be additionally formed in the circumference of the lock mount unit 150 through which the tension adjusting unit 120 is positioned and into which the side fixing member 125 can be inserted, the hole being It is more preferable that the upper surface of the head of the side fixing member 125 is completely inserted and formed at a position that can coincide with the circumferential surface of the lock mount unit 150 .

At this time, the tension control unit 120 is preferably positioned at the inner side of the circumference of the lock mount unit 150 , and more preferably, the side fixing member 125 is attached to the lock mount unit 150 . When inserted, the screw located at the end of the side fixing member 125 is preferably positioned at a position that can be fastened to the side fixing member insertion hole (121d).

Therefore, as shown in FIG. 11 , when the tension adjusting unit 120 rotates to adjust the tension of the curved driving wire 140 , the fixed tension is inserted at the circumference of the locking mount unit 150 . and the head of the side fixing member 125 fastened to the side fixing member insertion hole 121d is positioned in a hooking form in the hole formed on the circumference of the locking mount 150, so that the tension adjusting part 120 is It is preferably configured to prevent further rotation.

As such, as the structure of the tension control unit 120 is changed, if it is necessary to perform a tension control operation, the rotation of the tension control unit 120 and the rotation of the side fixing member 125 can be coordinated with a single screwdriver. There is an advantage of obtaining convenience in work.

On the other hand, the present invention is not limited by the above description of the embodiment. That is, for example, in the exemplary embodiment, the curved driving unit 100 has been described as including the driven gear unit 170 and the driving gear unit 180 , but is not limited thereto. That is, the gear part is omitted and the satisfaction control lever described below is directly fastened to the curved driving part 100 to provide a user's driving force, or the driven gear part 170 and the driving gear part ( 180) may be configured in a form including an additional power transmission gear portion between.

In addition, in the previous embodiment, a structure in which the lock mount unit 150 and the driven gear unit 170 are separately formed and coupled and the diameter of the lock mount unit 150 and the driven gear unit 170 are different. It is not limited thereto. That is, integral formation is possible, and if necessary, the driven gear unit 170 is provided to function as the lock mount unit 150 , so that the fixed fastening hole 151 is formed through the side surface of the driven gear unit 170 . it might be

In addition, as another embodiment of the present invention, a plurality of configurations for the lock mount portion 150 and the pulley portion 130 to which the curve control wire 140 is fastened may be provided. For example, the first wire 140a and the second wire 140b constituting the curvature control wire 140 may be changed into a structure in which they are respectively fastened. For example, the lock mount unit 150 ) by configuring the pulley part 130 provided in the lower part into two upper and lower stages, so that the first wire 140a and the second wire 140b of the curvature control wire 140 are at different ends of the pulley part 130 . It may be configured to have a structure that is wound and unwound on each. By this structure, it is possible to provide an effect of preventing interference between the wires, etc., the formation position of the tension adjusting unit 120 can be variously modified and configured, and the driving rotation range of the pulley unit 130 is also wider. It provides the advantage of being configurable.

In addition, the description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be able Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed or divided form, and similarly, components described as distributed or divided may also be implemented in a combined form within the scope of those of ordinary skill in the art. have. In addition, the steps of the method may be performed alone or multiple times in combination with at least one other step.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1000: endoscope
100: curved driving part 110: base part
111: mount hole 112: drive gear hole
120: tension control unit 121: knob head unit
121a: tool type groove 121b: upper part of the knob head
121c: tool for adjusting tension 121d: side fixing member insertion hole
122: knob pillar 122a: wire insertion fixing hole
123: knob rotation shaft 124: tension adjustment fixing member
125: side fixing member 125a: side fixing member adjustment groove
125b: fixed insertion part 130: pulley part
131: knob rotation hole 132: lock fastening hole
140: curvature control wire 140a: first wire
140b: second wire 150: lock mount part
151: fixed fastening hole 152: lock hole
153: lock fastening member 160: bush bearing
170: driven gear unit 180: drive gear unit
200: curve control lever 300: housing
310: auxiliary guide unit 400: optical waveguide (optical fiber)
500: lighting unit 510: lighting control module
600: control module body 610: control button unit
700: treatment instrument insertion portion 800: insertion recess
900: curved tip P: power line
S : Signal input/output line O : O-ring
B: bearing

Claims (6)

a housing 300 constituting the exterior of the endoscope; and
an insertion recess 800 provided on the front side of the housing 300 and configured to be inserted into a patient's body;
a tip curved part 900 configured to be positioned at the end of the insertion recess 800 to enable direction change;
A curved driving part 100 for adjusting the direction of the tip curved part 900 by rotating the other side of the curved control wire 140 with one side connected to the tip of the tip curved part 900 by winding or unwinding;
It is configured to include a; a curve control lever that is coupled to the curved drive unit 100 and transmits a driving force by a user to the curved drive unit 100 ,
The curved driving unit 100,
base part 110; and,
a pulley part 130 supported rotatably on the base part 110 and fixing the other side of the bending control wire 140; and
a driven gear unit 170 coupled to rotate integrally with the pulley unit 130;
and a driving gear unit 180 coupled to the curved control lever to rotate and mesh with the driven gear unit 170 to transmit a rotational driving force to the driven gear unit 170 side; and
An endoscope further comprising a tension adjusting unit 120 for adjusting the tension of the bending control wire 140, characterized in that the tension adjusting unit 120 is installed in the pulley unit 130.
According to claim 1,
The tension control unit 120,
A knob head portion 121 provided with a tool-type fitting groove 121a so as to transmit an external force for tension adjustment using a tension adjustment tool;
Endoscope, characterized in that it is formed extending from the knob head portion (121), characterized in that it comprises a knob post (122) provided with a wire insertion fixing hole (122a) for fixing the other side of the bending control wire (140).
3. The method of claim 2,
The curved driving unit 100,
It is configured to further include a; lock mount unit 150 provided to have the same rotation axis as the pulley unit 130,
The tension control unit 120 is fastened through the fixing fastening hole 151 formed in the lock mount unit 150 to press the upper surface of the knob head unit 121 to friction the rotation of the tension control unit 120 . Endoscope, characterized in that the resisting tension adjustment fixing member 124 is further provided.
4. The method of claim 3,
The curved driving unit 100,
A locking and fastening member 153 for tensionally coupling the locking mount 150 and the pulley 130 with each other so as to supplement the pressing force of the tension adjusting and fixing member 124 on the upper surface of the knob head 121, Further comprising, an endoscope.
3. The method of claim 2,
The curved driving unit 100,
It is configured to further include a; lock mount unit 150 provided to have the same rotation axis as the pulley unit 130,
The tension control unit 120,
A tool-type groove (121a) for adjusting the tension of the bending control wire 140 is formed on the upper surface of the knob head part 121, and the tension adjusting part 120 is formed on the side of the knob head part 121. Endoscope, characterized in that the side fixing member insertion hole (121d) for fastening the side fixing member (125) for limiting the rotation of the is formed.
According to claim 1,
The curved control wire 140 connected to the tip of the tip curved part 900 is curved between the entry part of the insertion recessed part 800 and the curved driving part 100 so that it can smoothly move through the insertion recessed part 800 . Endoscope, characterized in that the auxiliary guide portion 310 for guiding the movement of the adjustment wire 140 is additionally provided.

Images