CN210228087U - Endoscope and insertion head thereof - Google Patents

Abstract

The utility model provides an endoscope and insert head end thereof inserts the head end and includes head end main part, camera and injection portion. The end face of the head end main body is provided with a camera mounting hole and a lens flushing hole, the camera is arranged at the camera mounting hole, the injection part is formed by outwards protruding and extending the end face of the head end main body close to the lens flushing hole, and one side of the injection part facing the camera is provided with a jet orifice. The liquid or gas in the flushing channel can be sprayed out towards the camera through the spray opening of the spraying part so as to remove foreign matters on the surface of the lens and ensure the accuracy and the definition of images shot by the camera. The injection part and the head end main body are integrally formed, so that the integral structural strength of the inserted head end is enhanced, the injection part can be prevented from being separated from the head end main body, and the normal use of the injection part is ensured to remove dirt on the camera lens; simultaneously the injection part and the head end main body are connected integrally, so that the injection part can be prevented from being left in a human body in the operation process, and the safety of the endoscopic operation is ensured.

Description

Endoscope and insertion head thereof

Technical Field

The utility model relates to the field of medical equipment, in particular to endoscope and insert head end thereof.

Background

An endoscope is a commonly used medical instrument, which generally consists of a bendable portion, a light source portion, and a lens portion. In use, the endoscope is passed into the patient through a natural orifice of the body or through a surgically created incision. After the endoscope is introduced into the organ to be detected, a doctor can directly observe the pathological changes of the relevant part.

When the endoscope is used, some opaque body fluid or blood is easily adhered to the surface of the camera at the end part, so that the image shot by the camera is blurred or the image cannot be shot normally at all, and the examination effect of organ lesion is influenced.

Conventionally, a water jet head is generally provided at an end portion of an endoscope, and foreign substances on a lens are removed by jetting water to a camera head through the water jet head. The water spraying head is formed by a metal bent pipe and then is adhered and fixed at the end part of the endoscope. Although the water spray head at the end of the endoscope can clean up dirt on the camera, the water spray head is easy to fall off from the end of the endoscope, so that the normal use of the endoscope is influenced, and a great risk is caused to the operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the water spray head at the end part of the endoscope is easy to fall off in the prior art, which affects the normal use of the endoscope and causes great risk for the operation.

In order to solve the technical problem, the utility model provides an insertion head end of an endoscope, which comprises a head end main body, a camera and an injection part, wherein the end surface of the head end main body is provided with a camera mounting hole and a lens flushing hole, a flushing channel for liquid or gas to circulate is arranged inside the head end main body, and the flushing channel is communicated with the lens flushing hole; the camera is arranged at the camera mounting hole, and the injection part is integrally formed by outwards protruding from the end surface of the head end main body close to the lens washing hole; the inside of the injection part is provided with an injection cavity, one side of the injection part facing the camera is provided with an injection port, and the injection port is communicated with the lens flushing hole through the injection cavity.

Optionally, the injection part comprises a transition seat and a connecting cap, the transition seat is open at two ends and hollow inside, and one end of the transition seat is connected with the head end main body in an integrally formed manner; the connecting cap is formed by integrally extending the other end of the transition seat outwards, and one end of the connecting cap, which is far away from the transition seat, is closed so as to form the injection cavity by enclosing the connecting cap and the transition seat; the injection opening is formed in one side, facing the camera, of the transition seat surface.

Optionally, the peripheral side edge of the connecting cap is a chamfer and is arranged, and the joint of the transition seat and the head end main body is arranged in an arc shape.

Alternatively, the ejection opening is an elongated opening, an extending direction of the ejection opening coincides with a width direction of the ejection portion, and a center of the ejection opening is opposed to a center of the camera mounting hole.

Optionally, the flushing channel includes a first flow section and a second flow section that are communicated with each other, the second flow section is disposed near the lens flushing hole, and an inner diameter of the first flow section is larger than an inner diameter of the second flow section.

Optionally, an instrument channel hole is further formed in the end face of the head end main body, and an instrument channel is formed inside the head end main body; the instrument channel is communicated with the instrument channel hole and is used for installing biopsy forceps of the endoscope.

Optionally, the center of the instrument passage hole, the center of the camera mounting hole, and the center of the head end body end face are located on the same straight line.

Optionally, an auxiliary water supply hole is further formed in the end face of the head end main body, a water supply channel is arranged inside the head end main body, and the water supply channel is communicated with the auxiliary water supply hole.

Optionally, the auxiliary water supply hole and the injection part are symmetrically arranged at two sides of a connecting line of the center of the instrument channel hole and the center of the camera mounting hole.

Optionally, the lens flushing hole, the camera mounting hole, the instrument channel hole and the auxiliary water supply hole are integrally injection-molded on the head end main body.

Optionally, the end surface of the head end main body is transparent, and the insertion head end further includes a light source, the light source is disposed inside the head end main body and is close to the camera.

The utility model also provides an endoscope, be in including extension and setting the operating parts of extension one end, the endoscope still includes foretell insertion head end, the insertion head end sets up the extension deviates from the tip of operating parts.

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

the utility model discloses endoscope and insert in the head end thereof, the jet that liquid or gas in the flushing channel pass through the injection portion can be towards the camera blowout to clear away the foreign matter on camera lens surface, guarantee the accuracy and the definition that the image was shot to the camera. The injection part and the head end main body are integrally formed, so that the integral structural strength of the inserted head end is enhanced, the injection part can be prevented from being separated from the head end main body, and the normal use of the injection part is ensured to remove dirt on the camera lens; simultaneously the injection part and the head end main body are connected integrally, so that the injection part can be prevented from being left in a human body in the operation process, and the safety of the endoscopic operation is ensured.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an endoscope of the present invention;

FIG. 2 is a schematic structural view of an insertion tip in the endoscope shown in FIG. 1;

FIG. 3 is another schematic diagram of the insertion header shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view along A-A of the insertion tip shown in FIG. 3;

FIG. 5 is a schematic view of the insertion tip end face of the endoscope shown in FIG. 1;

fig. 6 is a schematic cross-sectional view in the direction B-B of the insertion tip shown in fig. 5.

The reference numerals are explained below: 100. an endoscope; 10. inserting the head end; 11. a head end body; 11a, a main body portion; 11b, a connecting part; 111. a camera mounting hole; 112. a lens flushing hole; 113. flushing the channel; 113a, a first flow-through section; 113b, a second flow-through section; 114. a plugging arm; 115. an instrument channel aperture; 116. an instrument channel; 117. an auxiliary water supply hole; 118. a water delivery channel; 12. an injection section; 12a, a transition seat; 12b, a connecting cap; 121. an ejection chamber; 122. an ejection port; 13. a camera; 14. a light source element; 15. a circuit board; 20. an extension member; 30. an operating member.

Detailed Description

Exemplary embodiments that embody 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.

For further explanation of the principles and construction of the present invention, reference will now be made in detail to the preferred embodiments of the present invention, which are illustrated in the accompanying drawings.

Referring to fig. 1, an embodiment of the present application provides an endoscope 100 that may be used to observe lesions in organs within the body of a human. The endoscope 100 of the present embodiment includes an insertion head end 10, an extension member 20, and an operation member 30, wherein the insertion head end 10 and the operation member 30 are respectively provided at both ends of the extension member 20.

In this embodiment, the extension member 20 is tubular and may be arbitrarily curved. When the endoscope 100 is used, the insertion head 10 enters the inside of the human body together with the extension piece 20, and the medical staff controls the extension piece 20 and the insertion head 10 by operating the operation piece 30, so as to obtain an image of a lesion site in the inside of the human body.

Referring to fig. 2 to 6, the insertion head 10 of the present embodiment includes a head main body 11, a camera 13, and an injection part 12. The head end body 11 is a body portion 11a inserted into the head end 10, and is used for assembling functional components and connecting with the extension 20. The camera 13 is mounted on the head end main body 11, and is used for shooting an image of a part to be detected. The injection part 12 is integrally formed with the head end main body 11, and is mainly used for cleaning the lens surface of the camera 13.

Specifically, the end surface of the head end main body 11 is opened with a camera mounting hole 111 and a lens flushing hole 112. The head end body 11 is provided with a flushing passage 113 for flowing liquid and gas therein, and the flushing passage 113 is communicated with the lens flushing hole 112. The camera 13 is mounted at the camera mounting hole 111 of the head end body 11. The injection part 12 is integrally formed by protruding from the end surface of the head end main body 11 near the lens flushing hole 112, an injection cavity 121 is arranged inside the injection part 12, and a jet port 122 is arranged on the side of the injection part 12 facing the camera 13, and the jet port 122 is communicated with the lens flushing hole 112 through the injection cavity 121.

In the actual use process, some opaque body fluid or blood is easily left on the lens surface of the camera 13, which may cause the image shot by the camera 13 to be blurred or the image of the part to be detected cannot be shot at all. At this time, the medical staff can control the operation member 30 to make the liquid enter the spraying cavity 121 of the spraying part 12 through the flushing channel 113 and be sprayed out towards the camera 13 through the spraying port 122, so as to wash away dirt on the surface of the lens and ensure that the camera 13 normally shoots the image of the part to be detected.

The liquid used for washing the lens of the camera 13 can be normal saline water, and can also be other types of liquid such as purified water, and the like, as long as the liquid can wash away dirt on the lens and has no harm to a human body. In addition, the flushing channel 113 can also be used for gas circulation, and liquid adhered to the lens can be further removed by spraying gas to the camera 13, so that the surface of the lens is ensured to be clean.

Further, the head end body 11 of the present embodiment is a cylindrical structure, which is circular in cross section. The head end main body 11 includes a main body 11a and a connecting portion 11b, and the connecting portion 11b is disposed at one end of the main body 11a near the extension 20. The connecting portion 11b has an outer diameter smaller than that of the main body portion 11a to form a stepped structure on the peripheral side of the head end main body 11.

The stepped structure is adapted to cooperate with the extension member 20 to fixedly couple the insertion head end 10 with the extension member 20. In addition, the main body portion 11a extends toward the connecting portion 11b near the step-shaped structure to form a plug arm 114, and the plug arm 114 cooperates with the extension piece 20 to further ensure the stability of the connection between the plug head 10 and the extension piece 20.

As shown in fig. 2 to 4, a camera mounting hole 111 is formed in an end surface of the head end main body 11, and the camera mounting hole 111 is circular and used for assembling the camera 13 on the head end main body 11. After the camera 13 is mounted in the camera mounting hole 111, the lens surface of the camera 13 is flush with the end surface of the head end body 11.

The end surface of the head end main body 11 is further opened with a lens flushing hole 112, and the lens flushing hole 112 is arranged at one side of the camera mounting hole 111. The lens flushing hole 112 communicates with a flushing passage 113 inside the head end body 11 to flow out a liquid for flushing the lens of the camera 13. In the present embodiment, the injection portion 12 of the head end body 11 is located at the lens flushing hole 112, which is integrally formed to protrude outward from the end surface of the head end body 11.

Specifically, the injection portion 12 of the present embodiment includes a transition seat 12a and a connection cap 12 b. Wherein, both ends of the transition seat 12a are open and the interior is hollow, and one end of the transition seat 12a is connected with the head end main body 11 in an integrated manner. The connecting cap 12b is formed by integrally extending the other end of the transition seat 12a outwards, and one end of the connecting cap 12b far away from the transition seat 12a is closed to form the injection cavity 121 by enclosing with the transition seat 12 a.

In the present embodiment, the transition seat 12a is provided with an opening on a side facing the camera 13 to form the ejection port 122 of the ejection portion 12. The ejection port 122 communicates with the lens flushing hole 112 through the ejection chamber 121, so that the liquid inside the flushing passage 113 can be ejected from the ejection port 122.

The injection part 12 and the head end main body 11 are integrally formed, so that the strength of the integral structure of the insertion head end 10 is enhanced, the injection part 12 can be prevented from being separated from the head end main body 11, and the normal use of the injection part 12 is ensured to remove dirt on the lens of the camera 13; meanwhile, the spraying part 12 and the head end main body 11 are integrally connected, so that the spraying part 12 can be prevented from being left in a human body in the operation process, and the operation safety of the endoscope 100 is ensured.

Further, in the present embodiment, the outer contour of the connecting cap 12b is approximately triangular, and the vertex angle thereof is disposed in an inverted manner, so as to prevent the peripheral side of the connecting cap 12b from scratching the human body when the endoscope 100 is in use, and effectively reduce the resistance of the insertion head 10 when entering the human body, thereby ensuring the smooth operation of the endoscope 100.

It should be noted that the outer contour of the connection cap 12b may also be circular, square, irregular, etc., as long as the peripheral edge of the connection cap 12b is chamfered, so that the insertion head 10 of the endoscope 100 can smoothly enter the human body without causing any harm to the human body.

With the transition seat 12a of the present embodiment, the end connected to the head end main body 11 tends to have a tapered diameter toward the other end connected to the connection cap 12 b. The arrangement can increase the instantaneous pressure of the liquid entering the injection cavity 121, thereby flushing foreign matters on the surface of the lens in a large area.

In addition, the junction of the transition seat 12a and the head end main body 11 is arc-shaped, so that the transition seat 12a and the internal channel of the human body are in smooth contact, thereby avoiding accidental injury in the operation process and ensuring the effectiveness and safety of the operation of the endoscope 100.

The transition seat 12a of the embodiment is provided with the jet opening 122, and the center of the jet opening 122 is opposite to the circle center of the camera mounting hole 111, so that the jet opening 122 can correspond to the lens area of the camera 13 in a large area, and the liquid sprayed by the jet opening 122 can effectively wash dirt on the lens, and the camera 13 can be normally used.

In the present embodiment, the height of the ejection opening 122 is less than or equal to 0.35 mm. The height of the injection port 122 is small, so that the liquid sprayed from the injection port 122 is in a high-pressure state, the scouring force of the liquid for washing the surface of the lens is increased, foreign matters on the surface of the camera 13 are effectively removed, and the endoscope 100 is ensured to accurately and effectively shoot images of the part to be detected.

Further, as shown in fig. 3 and 4, the ejection port 122 communicates with the lens flushing hole 112 through the ejection chamber 121, and the lens flushing hole 112 communicates with the flushing passage 113, so that the liquid in the flushing passage 113 can be ejected from the ejection port 122. In the present embodiment, the flushing channel 113 comprises a first flow-through section 113a and a second flow-through section 113b communicating with each other. Wherein the second flow section 113b is disposed adjacent to the lens flushing hole 112.

The first flow-through section 113a of this embodiment has a circular cross-section, and the inner diameter of the first flow-through section 113a is larger than that of the second flow-through section 113 b. This arrangement enables the pressure of the liquid entering the second flow-through section 113b from the first flow-through section 113a to be increased, so that the liquid has a larger pressure before entering the ejection chamber 121, thereby effectively increasing the washing force of the liquid against the lens surface.

In the present embodiment, the cross section of the second flow-through section 113b is semicircular, so that the outer contour of the lens flushing hole 112 is semicircular. The length of the second flow-through section 113b is smaller than that of the first flow-through section 113a, so that the liquid collected in the first flow-through section 113a can generate a large pressure in the first flow-through section 113a and can maintain a high liquid pressure at the lens washing hole 112, thereby effectively removing foreign substances on the surface of the lens.

When foreign matters are adhered to the lens surface of the camera 13 during the operation of the endoscope 100, the medical staff operates the operation member 30 and liquid enters the flushing passage 113. As it passes from the first flow-through segment 113a to the second flow-through segment 113b, the liquid is gradually pressurized. The liquid whose pressure has been increased enters the ejection chamber 121 through the lens flushing hole 112, and the pressure of the liquid is further increased by the stopper of the connection cap 12b, and is ejected toward the camera 13 through the ejection port 122. The whole pressure of the ejected liquid is large, and all areas on the surface of the lens can be covered, so that dirt on the camera 13 is removed, and the shot image is guaranteed to have high definition.

Further, as shown in fig. 2, an instrument passage hole 115 is further formed in an end surface of the head end main body 11, and an instrument passage 116 is further formed inside the head end main body 11. The instrument channel aperture 115 communicates with an instrument channel 116, the instrument channel 116 being independent of the irrigation channel 113, the instrument channel 116 being used for mounting biopsy forceps of the endoscope 100.

After the endoscope 100 reaches the lesion, the medical staff can operate the biopsy forceps in the instrument channel 116 through the operation member 30, so that the biopsy forceps extend out of the instrument channel hole 115, and the pathological specimen at the lesion is clamped, so that the medical staff can conveniently detect and analyze the pathological specimen outside the patient.

In this embodiment, the outer profile of the instrument access hole 115 is circular. The center of the instrument passage hole 115, the center of the camera mounting hole 111, and the center of the end face of the head end main body 11 are located on the same straight line. The arrangement can ensure that medical personnel can accurately determine the position of the biopsy forceps for taking the specimen by shooting the image through the camera 13, and ensure the accuracy of pathological specimen acquisition.

In addition, the end surface of the head end body 11 of the present embodiment is further provided with a sub water supply hole 117. The head end body 11 is provided with a water supply passage 118 inside, and the water supply passage 118 communicates with the sub water supply hole 117.

The water supply passage 118 and the flushing passage 113 may be communicated with each other or may be independent of each other. The water supply channel 118 is used for the circulation of liquid, and the liquid flows out from the water outlet to wash the part to be detected.

The auxiliary water supply hole 117 and the injection part 12 of the present embodiment are symmetrically disposed at both sides of a line connecting the center of the instrument channel hole 115 and the center of the camera mounting hole 111. This arrangement enables the instrument passage hole 115 and the sub water feed hole 117 to be arranged effectively using the limited end surface space of the insertion head 10 while ensuring the relative positional arrangement of the ejection section 12 and the camera 13, so that the arrangement of the respective functional components on the insertion head 10 is made more efficient and rational.

In the present embodiment, the lens flushing hole 112, the camera mounting hole 111, the instrument channel hole 115 and the auxiliary water supply hole 117 are integrally formed on the head end main body 11, except that the injection portion 12 is integrally formed by projecting the end face of the head end main body 11, and the flushing channel 113, the instrument channel 116 and the water supply channel 118 are integrally formed inside the head end main body 11, that is, the head end main body 11 is a one-step injection molding structure.

This arrangement simplifies the process of molding the head end body 11, and the head end body 11 and the injection part 12 are molded at one time, so that the integral molding operation of the insertion head end 10 is simple, and a plurality of assembly operations are not required, thereby reducing the production costs of the insertion head end 10 and the endoscope 100.

Referring to fig. 5 and 6, in the present embodiment, the end surface of the head end main body 11 is transparent. The insertion head 10 of the present embodiment further includes a light source 14, and the light source 14 is provided inside the head main body 11 and is arranged near the camera 13.

The light source 14 of this embodiment is LED, and it can provide the illumination for camera 13, makes camera 13 shoot the condition that the picture is clear more, and medical personnel of being convenient for make clear up the pathological change position. In the present embodiment, two light source units 14 are provided, and the two light source units 14 are respectively provided on both sides of the camera 13 to enhance the illumination brightness.

In addition, the head end main body 11 of the present embodiment is further provided with a circuit board 15 inside, and the circuit board 15 is electrically connected to the light source element 14.

When the endoscope 100 of the present embodiment is used, the medical staff operates the operation member 30 to control the insertion head 10 and the extension member 20 to enter the human body, the camera 13 is close to the portion to be detected, and then the image of the lesion portion can be obtained, and the medical staff can operate the biopsy forceps through the image to obtain the pathological specimen. If the lens surface of the camera 13 is blurred due to the adhesion of foreign matters, the medical staff can operate the operation member 30 to make the liquid enter the spraying cavity 121 from the flushing channel 113 and be sprayed out from the spraying port 122 toward the camera 13, so as to remove the dirt on the lens surface. Furthermore, the site to be examined can be washed by discharging water through the auxiliary water supply hole 117.

With the endoscope and the insertion head end thereof of the embodiment, the liquid or gas in the flushing channel can be sprayed out towards the camera through the spraying opening of the spraying part so as to remove foreign matters on the surface of the lens and ensure the accuracy and the definition of images shot by the camera. The injection part and the head end main body are integrally formed, so that the integral structural strength of the inserted head end is enhanced, the injection part can be prevented from being separated from the head end main body, and the normal use of the injection part is ensured to remove dirt on the camera lens; simultaneously the injection part and the head end main body are connected integrally, so that the injection part can be prevented from being left in a human body in the operation process, and the safety of the endoscopic operation is ensured.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than 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 (12)

1. An insertion head end of an endoscope, comprising:

the end surface of the head end main body is provided with a camera mounting hole and a lens flushing hole, a flushing channel for liquid or gas to flow is arranged inside the head end main body, and the flushing channel is communicated with the lens flushing hole;

the camera is arranged at the camera mounting hole;

the spraying part is formed by extending the end surface of the head end main body to the outside in a protruding manner at a position close to the lens washing hole; the inside of the injection part is provided with an injection cavity, one side of the injection part facing the camera is provided with an injection port, and the injection port is communicated with the lens flushing hole through the injection cavity.

2. The insertion head end of claim 1, wherein the injection portion comprises a transition seat and a connecting cap, the transition seat being open at both ends and hollow inside, one end of the transition seat being integrally connected with the head end body;

the connecting cap is formed by integrally extending the other end of the transition seat outwards, and one end of the connecting cap, which is far away from the transition seat, is closed so as to form the injection cavity by enclosing the connecting cap and the transition seat; the injection opening is formed in one side, facing the camera, of the transition seat surface.

3. The insertion tip of claim 2, wherein the peripheral side edge of the connection cap is chamfered and the junction of the transition seat and the tip body is arcuate.

4. The insertion head end according to claim 1, wherein the ejection port is an elongated port extending in a direction coinciding with a width direction of the ejection portion, a center of the ejection port being opposite to a center of the camera mounting hole.

5. The insertion head of claim 1, wherein the flushing channel comprises a first flow-through segment and a second flow-through segment in communication, the second flow-through segment being disposed proximate the lens flushing aperture, an inner diameter of the first flow-through segment being greater than an inner diameter of the second flow-through segment.

6. The insertion head end of claim 1, wherein the head end body further comprises an instrument passage hole formed in an end surface thereof, and an instrument passage is formed inside the head end body; the instrument channel is communicated with the instrument channel hole and is used for installing biopsy forceps of the endoscope.

7. The insertion tip of claim 6, wherein a center of the instrument access hole, a center of the camera mounting hole, and a center of the tip body end face are located on a same line.

8. The insertion head end of claim 7, wherein an auxiliary water supply hole is further formed in an end surface of the head end body, a water supply channel is formed inside the head end body, and the water supply channel is communicated with the auxiliary water supply hole.

9. The insertion head end of claim 8, wherein the auxiliary water supply hole and the injection part are symmetrically arranged on both sides of a line connecting the center of the instrument passage hole and the center of the camera mounting hole.

10. The insertion head of claim 9, wherein the lens flushing aperture, the camera mounting aperture, the instrument channel aperture, and the secondary water feed aperture are integrally injection molded on the head body.

11. The insertion head end of claim 1, wherein the head end body is transparent at an end face thereof, the insertion head end further comprising a light source member disposed inside the head end body and disposed adjacent to the camera.

12. An endoscope comprising an elongate member and an operating member disposed at one end of the elongate member, wherein the endoscope further comprises an insertion head as claimed in any one of claims 1 to 11 disposed at an end of the elongate member facing away from the operating member.

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