CN218796609U - Water spraying head and endoscope - Google Patents

Abstract

The utility model relates to a sprinkler bead and endoscope belongs to medical endoscope field. The sprinkler head is used for being installed on a body of the endoscope and comprises a main body and a cap, wherein the main body is provided with a notch part, the notch part forms a water inlet on the bottom surface of the main body and a water outlet on the side surface of the main body, and water flow enters from the water inlet and flows out from the water outlet; the distance between the two opposite side walls of the notch part is gradually increased along the outflow direction of the water flow; the cap is arranged on the top surface of the main body, the bottom surface of the cap and the notch part form a water outlet groove, the water outlet groove faces to the optical lens on the endoscope, so that water flow enters the water outlet groove along the water inlet and is sprayed out from the water outlet to clean the optical lens. It has solved the poor technical problem of traditional washing sprinkler bead washing effect.

Description

Water spraying head and endoscope

Technical Field

The utility model relates to a medical endoscope field, in particular to sprinkler bead and endoscope.

Background

The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software, and is provided with an image sensor, an optical lens, a light source illumination, a mechanical device and the like. It can enter the stomach through the mouth or enter the body through other natural orifices. Lesions that cannot be visualized by X-rays can be seen with an endoscope. With the aid of an endoscopist, the stomach can be observed for ulcers or tumors, on the basis of which an optimal treatment plan is developed.

All be equipped with the washing sprinkler bead on traditional endoscope and be used for wasing optical lens. One type of water jet head is used to flush the optical lens by machining a tiny mouth on the side of a small tubular stainless steel by a precision numerical control machine and a micro-cutter. And the other is to bend the capillary tube to align the optical lens for spray washing. The two traditional water spraying heads have poor flushing effect on the optical lens and are not beneficial to diagnosis of doctors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the poor technical problem of traditional washing sprinkler bead washing effect.

In order to solve the above technical problem, the utility model provides a sprinkler bead for install on the body of endoscope, include: the water outlet is formed in the side face of the main body, and water flows enter from the water inlet and flow out from the water outlet; the distance between the two opposite side walls of the notch part is gradually increased along the outflow direction of the water flow; the cap is arranged on the top surface of the main body, a water outlet groove is formed by the bottom surface of the cap and the notch part, and the water outlet groove faces to the optical lens on the endoscope, so that water flow enters the water outlet groove along the water inlet and is sprayed out from the water outlet to clean the optical lens.

Optionally, an included angle between two opposite sidewalls of the notch portion is 10 ° to 15 °.

Optionally, the distance between the bottom surface of the cap and the top surface of the cap is gradually increased along the outflow direction of the water flow, so that the bottom surface of the cap is gradually pressed down along the outflow direction of the water flow.

Optionally, the bottom surface of the cap includes an angle of 1 ° to 4 ° with the top surface of the cap.

Optionally, the cap includes a bill extending outwardly beyond the body, the top of the bill having a smooth transition.

Optionally, the main body comprises a first subsection and a second subsection, the first subsection is located below the second subsection, the first subsection comprises a first locating surface and a second locating surface, the first locating surface is parallel to the second locating surface, and the second subsection extends outwards beyond the first locating surface and forms a step with the first locating surface.

Optionally, the sprinkler head is a polycarbonate piece.

Optionally, the outer surface of the sprinkler head is black.

The present application further provides an endoscope comprising: a body provided with a water inlet channel and a lens cavity; an optical lens disposed in the lens cavity; the sprinkler head is buckled in the water inlet channel, so that the water inlet is communicated with the water inlet channel; the water outlet is opposite to the optical lens, so that water enters along the water inlet channel and is sprayed out from the water outlet to spray and wash the optical lens.

Optionally, the sprinkler head and the water inlet channel are bonded to each other.

According to the above technical scheme, the beneficial effects of the utility model are that:

the utility model provides a sprinkler bead, be equipped with breach portion in the sprinkler bead's the main part, it is just to optical lens to make breach portion opening, interval orientation between the relative both sides wall of breach portion is crescent along the outflow direction of rivers, after the delivery port blowout of sprinkler bead is followed to rivers, lateral wall that expands gradually, it is stable to make spun rivers, and the width of rivers can crescent, the width of rivers covers whole optical lens, make whole optical lens homoenergetic effectively wash, the effect of blowing towards optical lens has been improved. And the water spray head structure is simpler in this embodiment, and the manufacturing degree of difficulty is low, easy shaping, very big reduction manufacturing cost.

Drawings

FIG. 1 is a schematic view of the structure of an endoscope;

FIG. 2 is a top view of the endoscope of FIG. 1;

FIG. 3 is a cross-sectional view of the endoscope of FIG. 1;

FIG. 4 is an enlarged schematic view at B in FIG. 3;

FIG. 5 is a schematic view of the sprinkler head;

FIG. 6 is a bottom view of the sprinkler head of FIG. 5;

FIG. 7 is a side view of the sprinkler head of FIG. 5;

FIG. 8 is a front view of the sprinkler head of FIG. 5;

figure 9 isbase:Sub>A cross-sectional view of the sprinkler headbase:Sub>A-base:Sub>A cross-section of figure 8.

The reference numerals are illustrated below: 100. an endoscope; 10. a body; 11. a water inlet channel; 111. a water inlet pipe; 12. a lens cavity; 13. an installation port; 20. a sprinkler head; 21. a cap; 211. a brim; 22. a main body; 220. a notch portion; 2201. a side wall; 221. a first section; 2211. a first positioning surface; 2212. a second positioning surface; 222. a second subsection; 23. a water outlet groove; 231. a water inlet; 232. a water outlet; 30. an optical lens.

Detailed Description

Exemplary embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it should be understood that the indications of directions or positional relationships (such as up, down, left, right, front, rear, and the like) in the embodiments shown in the drawings are merely for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 4, the present embodiment provides an endoscope 100, which includes a body 10, an optical lens 30 and a water spraying head 20. The optical lens 30 and the sprinkler head 20 are all arranged at one end of the body 10.

The body 10 is provided with a water inlet channel 11 and a lens cavity 12. The water inlet channel 11 penetrates through the body 10, and an installation port 13 connected with a water spraying head 20 is further arranged at one end of the water inlet channel 11. The mounting opening 13 is provided with a positioning groove for connecting and mounting a sprinkler head 20. The other end of the water inlet passage 11 is connected to a water inlet pipe 111 for providing high pressure water flow.

An optical lens 30 is disposed in the lens cavity 12. The optical lens 30 is an observation lens of the endoscope 100, and when the endoscope 100 enters the stomach through the oral cavity or enters the body through other natural orifices, lesions which cannot be displayed by X-rays, such as ulcers or tumors in the stomach, can be observed through the optical lens 30. In order to ensure that the inside of the human body can be observed clearly at any time, the optical lens 30 needs to be washed to achieve a better imaging effect.

In some embodiments, the body 10 of the endoscope 100 is provided with a connecting hole for installing and installing an illumination device or a mechanical device, so as to achieve a better observation effect.

As shown in fig. 5 to 9, the sprinkler head 20 includes a body 22 and a cap 21, and the cap 21 is attached to the top of the body 22 to form a semi-helmet-shaped sprinkler head 20.

The main body 22 is provided with a notch 220, and the notch 220 extends from the middle of the main body 22 to the side of the main body 22 and penetrates out of the side of the main body 22 to form a notch. The notch 220 has a water inlet 231 formed in the bottom surface of the main body 22 and a water outlet 232 formed in the side surface of the main body 22, and water flows in through the water inlet 231 and flows out through the water outlet 232. The interval between the opposite sidewalls 2201 of the notch portion 220 gradually increases in the outflow direction of the water flow.

The cap 21 is disposed on the top surface of the main body 22, and the bottom surface of the cap 21 and the notch 220 form a water outlet channel 23. When the sprinkler head 20 is mounted on the body 10 of the endoscope 100. The water outlet channel 23 faces the optical lens 30 on the endoscope 100, so that water flows into the water outlet channel 23 along the water inlet 231 and is ejected from the water outlet 232 to clean the optical lens 30.

It will be appreciated that when the sprinkler head 20 is mounted on the body 10 of the endoscope 100, the water outlet channel 23 and the end surface of the mounting port 13 together form a water flow passage for allowing the water flow to normally pass therethrough.

As shown in fig. 6, the distance between the two opposite sidewalls 2201 of the notch 220 gradually increases along the direction of the water outlet 232, so that the notch 220 is trapezoidal, when water is sprayed from the water spraying head 20, the two opposite sidewalls 2201 gradually expand to stabilize the sprayed water, and the width of the water gradually increases, the water spreads to cover the whole optical lens 30, so that the whole optical lens 30 can be effectively washed, the washing and blowing effects on the optical lens 30 are improved, and the endoscope 100 can obtain better imaging effects.

In some embodiments, the included angle between the two opposite sidewalls 2201 of the notch 220 is 10 ° to 15 °, and the preferred embodiment is 12 °, and the trapezoidal notch 220 with this angle can make the water jet satisfy the requirement of covering the optical lens 30, and will not wash to other positions, thereby improving the washing effect.

As shown in fig. 9, in the present embodiment, the distance between the bottom surface of the cap 21 and the top surface of the cap 21 gradually increases along the water flow outflow direction, so that the bottom surface of the cap 21 is gradually pressed down along the water flow outflow direction. That is, the top surface of the water outlet groove 23 is gradually pressed down along the water flowing direction, so that the water flow coming out from the water outlet 232 is pressed down, and the water flow can be effectively attached to the end surface of the body 10, so as to effectively blow the optical lens 30 on the body 10.

In some embodiments, the angle between the bottom surface of the cap 21 and the top surface of the cap 21 is 1 ° to 4 °, i.e., the angle of water flow downward is 1 ° to 4 °, and the angle of water flow downward is preferably 2 ° in the present embodiment, which provides the best blowing effect for the optical lens 30, and can effectively wash out the optical lens 30 without causing impact wear to the optical lens 30.

Referring to fig. 7 or 9, the cap 21 further includes a visor 211, and the portion of the cap 21 extending outward beyond the main body 22 forms the visor 211, and the top of the visor 211 is smoothly transited. The cap 21 exceeds the cap brim 211 formed by the main body 22, so that the length of the whole water outlet groove 23 is prolonged, the increased cap brim 211 can further press down the water flow, and the water flow is effectively attached to the surface of the optical lens 30, so that a better blowing effect is obtained. The top of the visor 211 is smoothly transitioned into the body without causing damage to the body organs when the endoscope 100 is advanced into the body.

It is understood that, in some embodiments, the cap visor 211 is only pressed down to press the water flow in the spraying direction, so that the water flow can be effectively attached to the surface of the optical lens 30.

Referring to fig. 5, in the present embodiment, the main body 22 includes a first section 221 and a second section 222. The first portion 221 is located below the second portion 222, the circumferential surface of the first portion 221 includes a first positioning surface 2211 and a second positioning surface 2212, and the first positioning surface 2211 is parallel to the second positioning surface 2212. The first sub-portion 221 is connected with the mounting port 13 of the water inlet channel 11 in a matching manner, and is connected with the mounting port 13 through the first positioning surface 2211 and the second positioning surface 2212, so that when the sprinkler head 20 is assembled, the water outlet 232 of the sprinkler head 20 is over against the optical lens 30, the two positioning surfaces which are parallel to each other have opposite directions, the error in installation of the sprinkler head 20 in the directions can be prevented, and the installation and use efficiency is improved. The second portion 222 extends outwardly beyond the first positioning surface 2211, i.e. the area of the second portion 222 is larger than the area of the first portion 221, and the second portion 222 forms a step with the first positioning surface 2211, and the step cooperates with the mounting opening 13 to fix the sprinkler head 20.

In this embodiment, the sprinkler head 20 and the water inlet passage 11 are bonded to each other. Specifically, the sprinkler head 20 is adhered to the mounting opening 13 of the water inlet channel 11 through black glue, so that the connection strength and the sealing performance of the sprinkler head 20 and the water inlet channel 11 are ensured.

In this embodiment, the sprinkler head 20 is made of polycarbonate, and may be integrally formed through an injection molding process, so that the manufacturing and forming process is simple. And the medical grade polycarbonate can ensure the biosafety of entering the human body.

In this embodiment, the outer surface of the sprinkler head 20 is black. Specifically, black color master is added during polycarbonate injection molding, and sand texture treatment is performed on the molding cavity surface of the mold, so that the surface of the sprinkler head 20 is matte black. The black surface can ensure very low LED light reflection, can greatly reduce the occurrence of halation of images in the optical lens 30, and enhances the imaging effect of focus.

In this embodiment, the distance between the two opposite sidewalls 2201 of the notch 220 is gradually increased along the direction of the water outlet 232, after the water is sprayed from the sprinkler head 20, the two opposite sidewalls 2201 are gradually expanded, so that the width of the water is gradually increased, the water covers the whole optical lens 30, and the whole optical lens 30 can be effectively washed. And the top surface of the water outlet groove 23 is gradually pressed down along the water flowing direction, so that the water flow coming out from the water outlet 232 is pressed down, the water flow can be effectively attached to the end surface of the body 10, the optical lens 30 on the body 10 can be effectively flushed and blown, and the endoscope 100 can obtain a better imaging effect.

Furthermore, compared to conventional water spray devices: a precise numerical control machine tool and a micro cutter machine a water spray opening formed by a micro opening part on the side surface of a small tubular stainless steel; the water outlet processed by the method is easy to generate burrs, and the effect of washing the lens is poor. The other method is to spray wash the optical lens 30 by bending the capillary tube, but the bending radius of the capillary tube is small, the capillary tube is easy to be broken during processing, and a narrow channel is formed at the bending part, so that the flow is reduced, and the washing effect is influenced; and the metallic nozzle may reflect into the image at the optical lens 30, affecting the image quality. Still other forms are injection molded directly and integrally with the body 10 of the endoscope 100, which are difficult to injection mold, expensive to manufacture, and have poor washing effect on the optical lens 30 of the endoscope 100, which is not conducive to diagnosis and treatment. In the present embodiment, the main body 10 of the endoscope 100 and the sprinkler head 20 are manufactured separately by adopting a separate assembly structure of the sprinkler head 20 and the main body 10 of the endoscope 100, so that the difficulty in manufacturing the water spraying portion of the main body 10 of the endoscope 100 is greatly reduced. Moreover, the half-helmet type sprinkler head 20 in the embodiment has a simple structure, and compared with the traditional sprinkler head 20, the sprinkler head 20 in the embodiment has low manufacturing difficulty, stable water flow sprayed from the water outlet 232, good flushing and blowing effects on the optical lens 30, and greatly reduced production cost.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terms used are words of description and illustration, rather than words of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A sprinkler head for mounting on the body of an endoscope, comprising:

the water outlet is formed in the side face of the main body, and water flows enter from the water inlet and flow out from the water outlet; the distance between the two opposite side walls of the notch part is gradually increased along the outflow direction of the water flow;

the cap is arranged on the top surface of the main body, a water outlet groove is formed by the bottom surface of the cap and the notch, and the water outlet groove faces to the optical lens on the endoscope, so that water flow enters the water outlet groove along the water inlet and is sprayed out from the water outlet to clean the optical lens.

2. The sprinkler head according to claim 1, wherein an angle between two opposite side walls of said notch portion is 10 ° -15 °.

3. The sprinkler head according to claim 1, wherein said cap has a bottom surface spaced from a top surface of said cap by a distance that increases in a direction of flow of said water, such that said bottom surface of said cap is pressed downward in said direction of flow of said water.

4. The sprinkler head of claim 3, wherein the bottom surface of the cap is angled from 1 ° to 4 ° from the top surface of the cap.

5. The sprinkler head of claim 1, wherein the cap includes a bill extending outwardly beyond the body, the top of the bill having a smooth transition.

6. The sprinkler head of claim 1, wherein the body comprises a first section and a second section, the first section being positioned below the second section, the first section comprising a first locating surface and a second locating surface, the first locating surface being parallel to the second locating surface, the second section extending outwardly beyond the first locating surface and being stepped from the first locating surface.

7. The sprinkler head of claim 1, wherein the sprinkler head is a polycarbonate member.

8. The sprinkler head according to claim 1, wherein an outer surface of said sprinkler head is black.

9. An endoscope, comprising:

a body provided with a water inlet channel and a lens cavity;

an optical lens disposed in the lens cavity;

the sprinkler head of any of claims 1-8, snapped into the water inlet channel such that the water inlet communicates with the water inlet channel; the water outlet is opposite to the optical lens, so that water enters along the water inlet channel and is sprayed out from the water outlet to spray and wash the optical lens.

10. The endoscope of claim 9, wherein the water jet head and the water inlet channel are bonded to each other.

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