CN110051316B - Endoscope and insertion head thereof - Google Patents
Endoscope and insertion head thereof Download PDFInfo
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- CN110051316B CN110051316B CN201910441358.0A CN201910441358A CN110051316B CN 110051316 B CN110051316 B CN 110051316B CN 201910441358 A CN201910441358 A CN 201910441358A CN 110051316 B CN110051316 B CN 110051316B
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- lens
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- 238000003780 insertion Methods 0.000 title claims abstract description 43
- 230000037431 insertion Effects 0.000 title claims abstract description 43
- 238000002347 injection Methods 0.000 claims abstract description 68
- 239000007924 injection Substances 0.000 claims abstract description 68
- 238000011010 flushing procedure Methods 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000005507 spraying Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 230000007704 transition Effects 0.000 claims description 33
- 238000001574 biopsy Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000003902 lesion Effects 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000001575 pathological effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
The invention provides an endoscope and an insertion head end thereof. The camera mounting hole and the camera lens flushing hole have been seted up to head end main part terminal surface, and the camera sets up in camera mounting hole department, and injection portion outwards stretches integrated into one piece by the position that the terminal surface of head end main part is close to the camera lens flushing hole, and this injection portion is equipped with the jet orifice towards one side of camera. The liquid or gas in the flushing channel can be sprayed out towards the camera through the spraying port of the spraying part so as to remove foreign matters on the surface of the lens, and the accuracy and the definition of the image shot by the camera are ensured. 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 the dirt on the camera lens; meanwhile, the injection part is integrally connected with the head end main body, so that the injection part can be prevented from falling into a human body in the operation process, and the safety of the endoscopic operation is ensured.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to an endoscope and an insertion head end thereof.
Background
An endoscope is a commonly used medical instrument that is generally composed of a bendable portion, a light source portion, and a lens portion. In use, the endoscope is passed through natural orifice of human body or incision formed by operation into the patient's body. After the endoscope is guided into the organ to be detected, the doctor can directly peep the pathological changes of the relevant part.
In the use process of the endoscope, the surface of the camera at the end part is easy to adhere with some opaque body fluid or blood, so that the image shot by the camera is blurred or cannot be shot normally at all, and the examination effect of organ lesions is affected.
Conventionally, a water jet head is usually provided at an end of an endoscope, and the water jet head sprays water to a camera head to remove foreign matter on the endoscope. The sprinkler head is formed by a metal bent pipe and then is adhered and fixed on the end part of the endoscope. Although the water spraying head at the end part of the endoscope can remove the dirt on the camera, the water spraying head is easy to fall off from the end part of the endoscope, so that the normal use of the endoscope is affected, and the operation is also at great risk.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a water spray head at the end part of an endoscope is easy to fall off, normal use of the endoscope is affected, and a large risk is caused to an operation.
In order to solve the technical problems, the invention provides an insertion head end of an endoscope, which comprises a head end main body, a camera and an injection part, wherein a camera mounting hole and a lens flushing hole are formed in the end surface of the head end main body, a flushing channel for liquid or gas to circulate is formed in 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 extending from the position, close to the lens flushing hole, of the end face of the head end main body; an injection cavity is arranged in the injection part, an injection port is arranged on one side of the injection part facing the camera, and the injection port is communicated with the lens flushing hole through the injection cavity.
Optionally, the spraying part comprises a transition seat and a connecting cap, two ends of the transition seat are open and the interior is hollow, and one end of the transition seat is integrally connected with the head end main 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 surrounding the transition seat; the transition seat is provided with the jet orifice facing one side of the camera.
Optionally, the peripheral side edge of connecting cap is the chamfer setting, transition seat with the junction of head end main part is the arc setting.
Alternatively, the ejection opening is a slit, an extending direction of the ejection opening coincides with a width direction of the ejection portion, and a center of the ejection opening is opposite to the camera mounting hole center.
Optionally, the flushing channel includes a first flow section and a second flow section that are connected, 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 in the head end main body; the instrument channel communicates with the instrument channel aperture for mounting a biopsy forceps of the endoscope.
Optionally, the center of the instrument channel hole, the center of the camera mounting hole, and the center of the head end body end face are on the same straight line.
Optionally, an auxiliary water delivery hole is further formed in the end face of the head end main body, and a water delivery channel is arranged in the head end main body and is communicated with the auxiliary water delivery hole.
Optionally, the auxiliary water supply hole and the spraying part are symmetrically arranged at two sides of a connecting line between 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 face of the head end main body is transparent, the insertion head end further comprises a light source piece, and the light source piece is arranged inside the head end main body and is close to the camera.
The invention also provides an endoscope, which comprises an extension piece and an operation piece arranged at one end of the extension piece, and the endoscope further comprises the insertion head end, wherein the insertion head end is arranged at the end part of the extension piece, which is away from the operation piece.
According to the technical scheme, the beneficial effects of the invention are as follows:
the endoscope and the insertion head end thereof can spray liquid or gas in the flushing channel towards the camera through the spray orifice of the spray part so as to remove foreign matters on the surface of the lens and ensure the accuracy and the definition of the image 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 the dirt on the camera lens; meanwhile, the injection part is integrally connected with the head end main body, so that the injection part can be prevented from falling into a human body in the operation process, and the safety of the endoscopic operation is ensured.
Drawings
FIG. 1 is a schematic view of an embodiment of an endoscope of the present invention;
FIG. 2 is a schematic view of the structure of an insertion head of the endoscope shown in FIG. 1;
FIG. 3 is another schematic view of the insertion head shown in FIG. 2;
FIG. 4 is a schematic cross-sectional view of the insertion head end shown in FIG. 3 taken along the direction A-A;
FIG. 5 is a schematic view of the end face of the insertion head of the endoscope shown in FIG. 1;
fig. 6 is a schematic cross-sectional view of the insertion head end shown in fig. 5 taken along the direction B-B.
The reference numerals are explained as follows: 100. an endoscope; 10. inserting a head end; 11. a head end body; 11a, a main body part; 11b, a connection part; 111. a camera mounting hole; 112. a lens flushing hole; 113. a flushing channel; 113a, a first flow section; 113b, a second flow-through section; 114. a plug arm; 115. an instrument channel aperture; 116. an instrument channel; 117. a secondary water supply hole; 118. a water supply channel; 12. a spraying part; 12a, a transition seat; 12b, a connection cap; 121. a spray chamber; 122. an ejection port; 13. a camera; 14. a light source member; 15. a circuit board; 20. an extension member; 30. and 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 will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.
For the purpose of further illustrating the principles and structure of the present invention, preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides an endoscope 100 that can be used to view lesions of organs within a human body. The endoscope 100 of the present embodiment includes an insertion head 10, an extension member 20, and an operation member 30, wherein the insertion head 10 and the operation member 30 are disposed at both ends of the extension member 20, respectively.
In this embodiment, the extension 20 is tubular and can be bent at will. When the endoscope 100 is used, the insertion head end 10 and the extension piece 20 enter the human body together, and medical staff can control the extension piece 20 and the insertion head end 10 through the operation piece 30 so as to obtain images of lesion sites in the human body.
Referring to fig. 2 to 6, the insertion head 10 of the present embodiment includes a head body 11, a camera 13, and a spraying portion 12. The head end main body 11 is a main body portion 11a of the insertion head end 10, which is used for assembly of functional components and for connection with the extension piece 20. A camera 13 is mounted on the head end main body 11 for photographing an image of a portion 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 face of the head end main body 11 is provided with a camera mounting hole 111 and a lens flushing hole 112. A flushing passage 113 through which liquid and gas circulate is provided in the head end main body 11, and the flushing passage 113 communicates with the lens flushing hole 112. The camera 13 is mounted at a camera mounting hole 111 of the head end body 11. The injection part 12 is integrally formed by protruding outwards from the end surface of the head end main body 11 near the lens flushing hole 112, an injection cavity 121 is arranged in the injection part 12, an injection port 122 is arranged on one side of the injection part 12 facing the camera 13, and the injection port 122 is communicated with the lens flushing hole 112 through the injection cavity 121.
In the practical use process, some opaque body fluid or blood is easy to remain on the lens surface of the camera 13, which can 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 enable the liquid to enter the injection cavity 121 of the injection part 12 through the flushing channel 113 and be sprayed out towards the camera 13 through the injection opening 122, so that the dirt on the surface of the lens is washed away, and the camera 13 is ensured to normally shoot the image of the part to be detected.
The liquid used for flushing the lens of the camera 13 can be normal saline, and can also be purified water or other kinds of liquid, as long as the liquid can flush away the dirt of the lens and has no harm to human bodies. In addition, the flushing channel 113 can also circulate air, and by spraying air to the camera 13, the liquid adhered on the lens can be further removed, so that the surface of the lens is ensured to be clean.
Further, the head end main body 11 of the present embodiment has a cylindrical structure with a circular cross section. The head end main body 11 includes a main body portion 11a and a connecting portion 11b, and the connecting portion 11b is provided at an end of the main body portion 11a near the extension piece 20. The outer diameter of the connecting portion 11b is smaller than the outer diameter of the main body portion 11a to form a stepped structure on the circumferential side of the head end main body 11.
The stepped structure is adapted to cooperate with the extension member 20 to secure the insertion tip 10 in connection with the extension member 20. In addition, the main body portion 11a extends towards the connecting portion 11b near the step-shaped structure to form a plugging arm 114, and the plugging arm 114 is matched with the extension piece 20 to further ensure the stability of the connection between the plug-in head end 10 and the extension piece 20.
As shown in fig. 2 to 4, the end face of the head end main body 11 is provided with a camera mounting hole 111, and the camera mounting hole 111 is circular 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 main body 11.
A lens flushing hole 112 is also provided on the end face of the head end main body 11, and the lens flushing hole 112 is arranged on one side of the camera mounting hole 111. The lens flushing hole 112 communicates with a flushing channel 113 inside the head end body 11 to flow out 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 by protruding outward from the end face of the head end body 11.
Specifically, the ejection portion 12 of the present embodiment includes a transition seat 12a and a connection cap 12b. Wherein, the two ends of the transition seat 12a are open and the inside is hollow, and one end of the transition seat 12a is integrally connected with the head end main body 11. The connecting cap 12b is integrally extended from the other end of the transition seat 12a, 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, a side of the transition seat 12a facing the camera 13 is provided with an opening to form the ejection port 122 of the ejection section 12. The ejection port 122 communicates with the lens flushing hole 112 through the ejection chamber 121, so that the liquid inside the flushing channel 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 integral structural strength of the inserted 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 the dirt on the lens of the camera 13; meanwhile, the injection part 12 is integrally connected with the head end main body 11, so that the injection part 12 can be prevented from falling into 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 connection cap 12b is approximately triangular, and the vertex angle thereof is inverted, so as to avoid the circumferential side of the connection cap 12b from scratching the human body when the endoscope 100 is in use, and effectively reduce the resistance of the insertion head end 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 be circular, square, irregular, etc., as long as the peripheral edge of the connection cap 12b is chamfered, so that the insertion head end 10 of the endoscope 100 can smoothly enter the human body without causing injury to the human body.
With the transition seat 12a of the present embodiment, the end portion thereof connected to the head end main body 11 tends to have a tapered caliber toward the other end connected to the connection cap 12b. This arrangement allows the instantaneous pressure of the liquid entering the ejection chamber 121 to be increased, thereby enabling a large area of foreign matter to be flushed out of the lens surface.
In addition, the connection part of the transition seat 12a and the head end main body 11 is in an arc shape, so that the transition seat 12a is in smooth contact with the internal channel of the human body, accidental damage in the operation process is avoided, and the effectiveness and the safety of the endoscope 100 operation are ensured.
The transition seat 12a of the embodiment is provided with the injection port 122, and the center of the injection port 122 is opposite to the center of the camera mounting hole 111, so that the injection port 122 can correspond to the lens area of the camera 13 in a large area, the liquid sprayed from the injection port 122 can be ensured to effectively flush dirt on the lens, and the camera 13 can be ensured to be normally used.
In the present embodiment, the height of the ejection opening 122 is less than or equal to 0.35mm. The height of the injection port 122 is small, so that the liquid injected from the injection port 122 is in a high pressure state, and the scouring force of the liquid for flushing the lens surface is increased, thereby effectively removing foreign matters on the surface of the camera 13 and ensuring that the endoscope 100 accurately and effectively captures 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 channel 113, so that the liquid in the flushing channel 113 can be ejected from the ejection port 122. In this embodiment, the flush channel 113 includes a first flow-through section 113a and a second flow-through section 113b that are in communication. Wherein the second flow section 113b is disposed adjacent to the lens washing hole 112.
The cross section of the first circulation section 113a of this embodiment is circular, and the inner diameter of the first circulation section 113a is larger than the inner diameter of the second circulation section 113b. This arrangement can increase the pressure of the liquid entering the second flow path 113b from the first flow path 113a so that the liquid has a greater pressure before entering the ejection chamber 121, thereby effectively increasing the flushing force of the liquid to flush the lens surface.
In the present embodiment, the cross section of the second circulation segment 113b is semicircular so that the outer contour of the lens flushing hole 112 is semicircular. The second flow-through section 113b has a length 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 larger pressure in the first flow-through section 113a and still maintain a high hydraulic pressure at the lens flushing hole 112 to effectively remove foreign matters from the lens surface.
During the operation of the endoscope 100, when foreign matters adhere to the lens surface of the camera 13, the medical staff manipulates the operation member 30 and the liquid enters the flushing channel 113. Upon entering the second flow-through section 113b from the first flow-through section 113a, the liquid is gradually pressurized. The liquid with increased pressure enters the ejection chamber 121 from the lens flushing hole 112, is further increased in pressure by the stopper of the connection cap 12b, and is ejected toward the camera 13 from the ejection port 122. The sprayed liquid has larger overall pressure and can cover all areas on the surface of the lens so as to remove the dirt on the camera 13 and ensure that the shot image has higher definition.
Further, as shown in fig. 2, an instrument channel hole 115 is further formed on the end surface of the head end main body 11, and an instrument channel 116 is further formed inside the head end main body 11. The instrument channel hole 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 a biopsy forceps of the endoscope 100.
After the endoscope 100 reaches the lesion site, a 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 clamp the pathological specimen at the lesion site, thereby facilitating the detection and analysis of the pathological specimen by the medical staff outside the patient.
In this embodiment, the outer contour of the instrument channel hole 115 is circular. The center of the instrument channel 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 enable medical staff to accurately determine the position of the biopsy forceps for taking the sample by shooting images through the camera 13, and ensure the accuracy of pathological sample acquisition.
In addition, a sub water supply hole 117 is formed in the end face of the head end main body 11 of the present embodiment. A water supply passage 118 is provided in the head end main body 11, and the water supply passage 118 communicates with the sub water supply hole 117.
The water supply passage 118 may be in communication with the flushing passage 113 or may be independent of each other. The water supply channel 118 is in fluid communication with the water outlet, and the liquid flows out from the water outlet for flushing the part to be detected.
The auxiliary water supply hole 117 and the spraying part 12 of the present embodiment are symmetrically arranged at two sides of the connecting line between the center of the instrument channel hole 115 and the center of the camera mounting hole 111. Such an arrangement enables the instrument passage holes 115 and the sub-water supply holes 117 to be arranged effectively using the limited end face space of the insertion head end 10 while ensuring the relative position arrangement of the injection part 12 and the camera 13, so that the respective functional components on the insertion head end 10 are arranged more effectively and rationally.
In this embodiment, the lens flushing hole 112, the camera mounting hole 111, the instrument passage hole 115 and the sub-water supply hole 117 are integrally formed on the head end body 11 except that the injection part 12 is integrally protruded from the end surface of the head end body 11, and the flushing passage 113, the instrument passage 116 and the water supply passage 118 are integrally formed inside the head end body 11, that is, the head end body 11 is of a one-shot injection molding structure.
This arrangement can simplify the process of molding the head end main body 11, and the head end main body 11 and the injection part 12 are molded at one time, so that the overall molding operation of the insertion head end 10 is simple, and multiple assembly operations are not required, thereby reducing the production cost of the insertion head end 10 and the endoscope 100.
Referring to fig. 5 and 6, in the present embodiment, the end face of the head end body 11 is transparent. The insertion head 10 of the present embodiment further includes a light source member 14, and the light source member 14 is disposed inside the head end main body 11 and is disposed close to the camera 13.
The light source part 14 of the embodiment is an LED, which can provide illumination for the camera 13, so that the image shot by the camera 13 is clearer, and the medical staff can clearly determine the pathological change position. In the present embodiment, two light source members 14 are provided, and the two light source members 14 are respectively disposed at both sides of the camera 13 to enhance the illumination brightness.
In addition, a circuit board 15 is further disposed inside the head end main body 11 of the present embodiment, and the circuit board 15 is electrically connected to the light source member 14.
When the endoscope 100 of the present embodiment is used, the medical staff controls the operation member 30 to control the insertion head end 10 and the extension member 20 to enter the human body, the camera 13 can acquire an image of a lesion site after approaching to the site to be detected, and the medical staff can operate the biopsy forceps to acquire a pathological specimen through the image. If the surface of the lens 13 is blurred due to the adhesion of foreign matters, the medical staff can control the operation member 30 to enable the liquid to enter the spraying cavity 121 from the flushing channel 113 and to be sprayed towards the camera 13 from the spraying opening 122 so as to remove the dirt on the surface of the lens. In addition, the water is discharged through the auxiliary water outlet 117, so that the part to be detected can be washed.
For the endoscope and the insertion head end thereof in the embodiment, liquid or gas in the flushing channel can be sprayed out towards the camera through the spraying port of the spraying part so as to remove foreign matters on the surface of the lens, and the accuracy and the definition of the image shot by the camera are ensured. 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 the dirt on the camera lens; meanwhile, the injection part is integrally connected with the head end main body, so that the injection part can be prevented from falling into a human body in the operation process, and the safety of the endoscopic operation is ensured.
While the invention has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and 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 of an endoscope, comprising:
the camera lens comprises a head end main body, a lens and a lens, wherein a camera mounting hole and a lens flushing hole are formed in the end face of the head end main body, a flushing channel for liquid or gas to circulate is formed in 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 injection part is integrally formed by outwards extending from the position of the end face of the head end main body, which is close to the lens flushing hole; an injection cavity is arranged in the injection part, an injection port is arranged on one side of the injection part facing the camera, and the injection port is communicated with the lens flushing hole through the injection cavity; the spraying part comprises a transition seat and a connecting cap which are connected to the head end main body, and two ends of the transition seat are open and the inside of the transition seat is hollow; 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 surrounding the transition seat; the side of the transition seat facing the camera is provided with the jet orifice; the jet orifice is communicated with openings at two ends of the transition seat, and the end part of the transition seat, which is connected with the head end main body, faces towards one end, which is connected with the connecting cap, of the transition seat, and the end part of the transition seat, which is connected with the head end main body, is in a trend of reducing caliber.
2. The insertion head according to claim 1, wherein one end of the transition seat is integrally connected to the head end body.
3. The insertion head according to claim 2, wherein the peripheral edge of the connection cap is chamfered and the junction of the transition seat and the head body is arcuate.
4. The insertion head end according to claim 1, wherein the injection port is a slit, an extending direction of the injection port coincides with a width direction of the injection portion, and a center of the injection port is opposite to the camera mounting hole center.
5. The insertion head of claim 1, wherein the flushing channel includes first and second communicating segments, the second communicating segment being disposed proximate the lens flushing aperture, the first communicating segment having an inner diameter greater than an inner diameter of the second communicating segment.
6. The insertion head according to claim 1, wherein an instrument channel hole is further formed in an end surface of the head end main body, and an instrument channel is formed in the head end main body; the instrument channel communicates with the instrument channel aperture for mounting a biopsy forceps of the endoscope.
7. The insertion head of claim 6 wherein the center of the instrument channel bore, the center of the camera mounting bore, and the center of the head end body end face are on the same line.
8. The insertion head end according to claim 7, wherein a secondary water delivery hole is further formed in an end face of the head end main body, and a water delivery channel is formed in the head end main body, and the water delivery channel is communicated with the secondary water delivery hole.
9. The insertion head end of claim 8, wherein the auxiliary water supply hole and the injection part are symmetrically disposed at both sides of a line connecting a center of the instrument passage hole and a center of the camera mounting hole.
10. The insertion head according to claim 9, wherein the lens flushing hole, the camera mounting hole, the instrument channel hole and the secondary water supply hole are integrally injection molded on the head end body.
11. The insertion head according to claim 1, wherein the end face of the head end body is transparent, the insertion head end further comprising a light source member disposed inside the head end body and disposed proximate to the camera.
12. An endoscope comprising an extension member and an operating member disposed at one end of the extension member, wherein the endoscope further comprises an insertion head end as claimed in any one of claims 1 to 11 disposed at an end of the extension member facing away from the operating member.
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| CN201910441358.0A CN110051316B (en) | 2019-05-24 | 2019-05-24 | Endoscope and insertion head thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2021053022A (en) * | 2019-09-30 | 2021-04-08 | Hoya株式会社 | Endoscope and overtube |
| CN111012292A (en) * | 2019-12-25 | 2020-04-17 | 岱川医疗(深圳)有限责任公司 | Endoscope, insertion tip, and method for manufacturing insertion tip |
| CN116211415A (en) * | 2023-01-04 | 2023-06-06 | 湖南众智精诚医疗科技有限公司 | Continuous visual puncture equipment |
| CN116370730B (en) * | 2023-06-06 | 2023-08-22 | 杭州莱恩瑟特医疗技术有限公司 | Drainage device, endoscope, and cleaning method for endoscope |
| CN117137422B (en) * | 2023-10-24 | 2024-01-26 | 杭州鑫泽源医疗科技有限公司 | Endoscope |
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| CN110051316A (en) | 2019-07-26 |
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