CN113197538B

CN113197538B - Endoscope

Info

Publication number: CN113197538B
Application number: CN202110353492.2A
Authority: CN
Inventors: 黄宏辉; 吴俊�; 赵海波
Original assignee: Zhuhai Pusheng Medical Science & Technology Co ltd
Current assignee: Zhuhai Pusheng Medical Science & Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2023-11-10
Anticipated expiration: 2041-04-01
Also published as: CN113197538A

Abstract

The invention discloses a front end part of an endoscope and the endoscope thereof, wherein the front end part comprises a lens fixing piece and a connecting pipe, a first clamping groove and a second clamping groove are arranged on the lens fixing piece, the first clamping groove and the second clamping groove are semi-closed grooves formed by inwards sinking the outer wall of the lens fixing piece, at least one light source fixing hole is further arranged on the lens fixing piece, and a positioning groove is further arranged on the outer wall of the lens fixing piece; the lens fixing piece is arranged at the upper end of the connecting pipe, a convex locating piece is arranged at the upper end of the connecting pipe, and the locating piece is embedded into the locating groove to be matched and limited. The endoscope front end part utilizes the semi-closed clamping groove to replace the traditional fully-enclosed duct, so that the outer wall of the duct is omitted, the useless wall thickness is reduced, the diameter of the endoscope front end part is reduced, the front end part with smaller size is obtained, and the damage to a patient is reduced.

Description

Endoscope

Technical Field

The invention relates to the field of medical equipment, in particular to an endoscope.

Background

The endoscope is a medical device integrating an image sensor, a lens, a light source and the like, and can enter the stomach through the oral cavity or enter the body through other natural pore canals to perform operation treatment on focus positions. Since the endoscope is introduced into the duct to expand the duct, the smaller the size of the distal end portion of the endoscope is, the less the damage is caused to the patient, and the circumference of the endoscope, particularly the circumference of the distal end portion, is required to be very severe.

However, in the prior art, the tip part of most endoscopes is formed into the pore canal such as the camera hole and the chip seat by adopting an integral molding mode, so that the manufacturing process of the tip part is complex, certain wall thickness needs to be ensured between molded pore canals, firstly, the internal size of the pore canal is compressed, the performance of the placed camera is affected, and secondly, the size of the whole molding is enlarged, so that the diameter of the tip part is increased.

Disclosure of Invention

In order to overcome at least one of the above technical problems of the prior art, the present invention provides an endoscope tip portion capable of reducing the size of an endoscope and ensuring the image quality, and an endoscope thereof.

The utility model provides an endoscope, including endoscope tip, endoscope tip includes lens mounting and connecting pipe, be provided with semi-closed first draw-in groove on the periphery of lens mounting, still be provided with at least one light source fixed orifices on the lens mounting, be provided with the light source subassembly in the light source fixed orifices, still be provided with the constant head tank on the outer wall of lens mounting, be fixed with the subassembly of making a video recording in the draw-in groove, be provided with the light source subassembly in the light source fixed orifices. The connecting pipe is the flexible pipe, the lens mounting sets up the upper end of connecting pipe, the upper end of connecting pipe is provided with bellied spacer, the spacer embedding the constant head tank fit is spacing, and the connecting pipe is around establishing outside the lens mounting, and the space of lens mounting and connecting pipe constitutes the second draw-in groove, and the second draw-in groove is semi-closed structure, second draw-in groove internal fixation has the working channel, the working channel wears to establish in the connecting pipe, the upper end of connecting pipe still is provided with spacing, spacing is located the outside of first draw-in groove is spacing fixedly to the subassembly of making a video recording.

The endoscope tip and the endoscope have at least the following advantages: the semi-closed clamping groove is used for replacing the traditional fully-enclosed duct, so that the outer wall of the duct is omitted, the useless wall thickness is reduced, the diameter of the front end part of the endoscope is reduced, the front end part with smaller size is obtained, and the damage to a patient is reduced; the connection of utilizing the spacer and constant head tank is spacing also in order to reduce connection structure's size, fixes a position fast simultaneously, can improve the efficiency of equipment. The limiting strip can play a role in shielding, the camera shooting assembly is embedded into the first clamping groove, and the camera shooting assembly is prevented from shifting. The lens fixing piece can position and fix the camera shooting assembly and the working channel, and meanwhile, the lens fixing piece does not occupy too much space of the connecting pipe, so that the size of the front end part of the endoscope can be greatly reduced, and the small-diameter endoscope can be produced.

In some embodiments of the endoscope front end portion, the lens fixing piece is in a sheet shape, the first clamping groove is a notch with an inward concave peripheral edge of the lens fixing piece, and the positioning groove is arranged at the peripheral edge of the lens fixing piece. The flaky lens fixing piece is thinner, and after being installed in the connecting pipe, the flaky lens fixing piece does not occupy space in the connecting pipe, and can leave more space for accessories installed on the lens fixing piece, so that the outer size of the connecting pipe is further reduced, and the front end part with smaller size is obtained.

In some embodiments of the endoscope front end portion, the lens fixing piece is in a column shape, the first clamping groove is a groove with an inner concave outer wall surface of the lens fixing piece, and the positioning groove is arranged on the outer wall surface of the lens fixing piece. The contact surface between the columnar lens fixing piece and the connecting pipe is larger, and the connection is firmer.

In some embodiments of the endoscope front end portion, an open slot is further provided at the upper end of the connection tube, the open slot is on the same side as the second clamping slot, and the open slot is connected with the second clamping slot to form an outlet end. The outlet end increases the size of the opening of the second clamping groove, so that large-size medical equipment can conveniently extend out of the channel in the second clamping groove.

In some embodiments of the endoscope tip described above, the open slot extends obliquely downward from the upper end of the connection tube to form an outlet end that is inclined upward. The outlet end is obliquely arranged, so that the front end part is changed into a cone shape, the top end size of the front end part is reduced, the front end part can conveniently enter a body, an internal channel can be expanded, and comprehensive use experience is better.

In some embodiments of the above endoscope, the positioning grooves are provided in at least two, and the positioning grooves are symmetrically provided on the outer wall of the lens fixing member. The plurality of locating grooves which are symmetrically arranged can provide more firm locating connection.

In some embodiments of the above endoscope, the upper end of the connecting tube is provided with a plurality of through holes or through slots. The through hole or the through groove is provided with a dispensing position, so that the dispensing position can be clearly prompted, and the adhesive can enter the gap between the connecting pipe and the lens fixing piece or the assembly part, so that the bonding effect is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that a person skilled in the art can obtain other designs and drawings from these drawings without inventive effort:

FIG. 1 is a right side view of a preferred embodiment of the present invention;

FIG. 2 is a front view of a preferred embodiment of the present invention;

FIG. 3 is a top view of a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a lens holder according to a second embodiment of the present invention;

FIG. 5 is a schematic view of a lens holder according to a third embodiment of the present invention;

fig. 6 is a front view of a fourth embodiment of the present invention;

FIG. 7 is a schematic view of a lens holder according to a fourth embodiment of the present invention;

fig. 8 is a schematic structural view of a lens holder according to a fifth embodiment of the present invention.

Description of the embodiments

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 8, an endoscope tip is disclosed, which comprises a lens fixing piece 1 and a connecting pipe 2, wherein a semi-closed first clamping groove 3 is arranged on the periphery of the lens fixing piece 1, at least one light source fixing hole 5 is also arranged on the lens fixing piece 1, and a positioning groove 6 is also arranged on the outer wall of the lens fixing piece 1; the connecting pipe 2, the lens mounting 1 sets up the upper end of connecting pipe 2, the upper end of connecting pipe 2 is provided with bellied spacer 7, the spacer 7 embedding the constant head tank 6 internal fit is spacing, and connecting pipe 2 is around establishing outside lens mounting 1, and lens mounting 1 constitutes second draw-in groove 4 with the space of connecting pipe 2.

In the embodiment of fig. 1 to 5, the lens holder 1 is provided with a second clamping groove 4 on the other side opposite to the first clamping groove 3, and the second clamping groove 4 is similar to the first clamping groove 3, and is formed by recessing the outer wall of the lens holder 1 inwards to form a semi-closed groove. In the embodiment of fig. 6 to 8, the side of the lens holder 1 opposite to the first clamping groove 3 is a plane, and the second clamping groove 4 is a gap between the plane and the connecting tube 1. The second clamping groove 4 of cambered surface recess can realize spacing, and planar second clamping groove 4 processing is simpler, first clamping groove 3 and second clamping groove 4 are the clearance of lens mounting 1 and connecting pipe 1, and first clamping groove 3 and second clamping groove 4 are semi-closed structure.

The semi-closed first clamping groove 3 and the semi-closed second clamping groove 4 are used for replacing a traditional full-enclosed duct, one side outer wall of the full-enclosed duct can be omitted, the diameter of the lens fixing piece 1 is reduced, the diameter of the front end part of the endoscope is reduced, the front end part with smaller size is obtained, the damage to a patient caused when the front end part enters a human body channel can be reduced, and the use is safer and more safe.

In order to rapidly assemble the lens fixing piece 1 and the connecting pipe 2, a positioning mechanism is further arranged between the lens fixing piece 1 and the connecting pipe 2, and the positioning mechanism comprises a positioning groove 6 and a positioning sheet 7 which are respectively arranged on the lens fixing piece 1 and the connecting pipe 2. After the locating piece 7 is embedded into the locating groove 6, the lens fixing piece 1 can be directly arranged at the upper end of the connecting pipe 2, and the lens fixing piece can be further fixed in different modes such as electric welding, threaded fixing or adhesive. Referring to fig. 3, when the positioning piece 7 is installed in the positioning groove 6, the maximum outer diameter of the front end portion is still the outer diameter of the lens fixing member 1, the connecting tube does not increase the size of the front end portion, the size of the lens fixing member 1 is not reduced in order to keep the size of the front end portion, the functions of small outer diameter and large aperture can be simultaneously satisfied, and the embedded positioning mechanism does not generate a stepped shaft, so that the use safety is further ensured.

Referring to the preferred embodiment of fig. 3, the positioning groove 6, the first clamping groove 3 and the second clamping groove 4 are all provided on the outer peripheral edge of the lens holder 1. The sheet lens fixing piece 1 is thinner, only the upper end part of the connecting pipe 1 can be blocked after being installed on the connecting pipe 1, the space inside the connecting pipe 1 can not be occupied, the inside of the connecting pipe 1 is not blocked, and a working channel and an image pickup assembly with larger sizes can be installed. The larger the size of the camera shooting component is, the higher the pixel is, and the higher the definition of shooting is when the operation treatment is clinically carried out, so that the accidental injury of laser to the inside of a human body is reduced. The medical instrument with larger size is convenient to pass through after the working channel is enlarged, the operation is more convenient, and the operation time is further shortened.

Referring to the second, third, fourth and fifth embodiments of fig. 4 to 8, the lens fixing member 1 is in a column shape, the contact surface between the columnar lens fixing member 1 and the connecting tube 2 is larger, and the connection is firmer. And the limiting effect of the first clamping groove 3 and the second clamping groove 4 is better, dispensing or welding is not needed additionally, the assembly process is fewer, and the production is more convenient. The positioning groove 6, the first clamping groove 3 and the second clamping groove 4 are all arranged on the outer wall surface of the lens fixing piece 1, the top end of the positioning groove 6 in the second embodiment is closed for limiting, the positioning groove 6 in the third embodiment is a through groove with an upper opening and a lower opening, the shape of the positioning groove 6 is variable, and the structure of limiting and fixing functions is achieved.

The upper end of the connecting pipe 2 is also provided with an open slot 8, the open slot 8 is on the same side as the second clamping slot 4, and the open slot 8 is connected with the second clamping slot 4 to form an outlet end. The outlet end increases the size of the opening of the second clamping groove 4, so that large-size medical equipment can conveniently extend out of the channel in the second clamping groove 4. The end surface of the open slot 8 in the axial direction may be a plane or an arc inclined surface which is concave, the open slot 8 extends from the upper end of the connecting pipe 2 to the obliquely lower side of the connecting pipe 2, and the formed outlet end is inclined upwards. The outlet end is obliquely arranged so that the front end part becomes conical, the top end size of the front end part is reduced, the internal channel can be expanded, the resistance of the front end part entering is reduced, and the connecting pipe 2 can conveniently enter the body.

The utility model also discloses an endoscope, including the endoscope tip of above-mentioned arbitrary, connecting pipe 2 is the flexible pipe, first draw-in groove 3 and the second draw-in groove 4 of lens mounting 1 are fixed with subassembly and working channel respectively, be provided with the light source subassembly in the light source fixed orifices 5, the working channel wears to establish in the connecting pipe 2. For easy to assemble, first draw-in groove 3 sets up to the square that matches with the subassembly of making a video recording, second draw-in groove 4 sets up to the arc that matches with the working channel, and camera subassembly and working channel can be fixed to the lens mounting 1, can not occupy too much space of connecting pipe 2 simultaneously, can significantly reduce the size of endoscope tip, produces small diameter endoscope.

In the fifth embodiment of fig. 8, the positioning groove 6 is provided with only one, and the positioning groove 6 in this embodiment is provided on the same side as the first card groove 3. In other embodiments of fig. 1 to 7, two positioning grooves 6 are preferably provided, the positioning grooves 6 are symmetrically disposed on the outer wall of the lens fixing member 1, and the positioning grooves 6 can be three equal different numbers according to the size and design of the connecting tube 2, and a plurality of positioning grooves 6 symmetrically disposed can provide more firm positioning connection.

The upper end of connecting pipe 2 is provided with a plurality of through-holes or logical groove 10, and through-hole or logical groove 10 department is the point and glues the position, can clearly indicate the point and glue the position, carries out the point fast and glues the operation, can also let the binder get into between the space of connecting pipe 2 and lens mounting 1 and working channel for the bonding effect is better.

The upper end of the connecting pipe 2 is also provided with a limiting strip 9, and the limiting strip 9 is positioned at the outer side of the first clamping groove 3 to limit and fix the camera shooting assembly. The spacing 9 can play the shielding effect, with in the first draw-in groove 3 of subassembly embedding of making a video recording, prevent to make a video recording the subassembly aversion moreover spacing 9 has certain elasticity, can slightly expand when making a video recording the subassembly dress, has made things convenient for the installation of making a video recording the subassembly more.

In order to ensure the safety of the endoscope during use, all the exposed bulges and corners on the lens fixing piece 1 and the connecting pipe 2 are subjected to arc chamfering treatment, such as the positions of the locating piece 7, the limiting strip 9, the edge of the lens fixing piece 1 and the like, so that the patient is prevented from being scratched during use.

While the preferred embodiments of the present invention have been illustrated in detail, the embodiments described are only some, but not all, of the embodiments of the present invention, and other embodiments may be devised by those skilled in the art that will fall within the scope of the principles of this invention.

Claims

1. An endoscope, characterized in that: comprises an endoscope front end part, wherein the endoscope front end part comprises

The lens fixing device comprises a lens fixing piece (1), wherein a semi-closed first clamping groove (3) is formed in the periphery of the lens fixing piece (1), at least one light source fixing hole (5) is formed in the lens fixing piece (1), a positioning groove (6) is formed in the outer wall of the lens fixing piece (1), a shooting assembly is fixed in the first clamping groove (3), and a light source assembly is arranged in the light source fixing hole (5);

connecting pipe (2), connecting pipe (2) are flexible pipe, lens mounting (1) set up the upper end of connecting pipe (2), the upper end of connecting pipe (2) is provided with bellied spacer (7), spacer (7) embedding constant head tank (6) internal fit is spacing, and connecting pipe (2) are around establishing outside lens mounting (1), and second draw-in groove (4) are constituteed in the space of lens mounting (1) and connecting pipe (2), and second draw-in groove (4) are semi-closed structure, second draw-in groove (4) internal fixation has the working channel, the working channel wears to establish in connecting pipe (2), the upper end of connecting pipe (2) still is provided with spacing (9), spacing (9) are located the outside of first draw-in groove (3) is spacing fixedly to the subassembly of making a video recording.

2. An endoscope as defined in claim 1, wherein: the lens fixing piece (1) is sheet-shaped, the first clamping groove (3) is a notch which is recessed inwards at the peripheral edge of the lens fixing piece (1), and the positioning groove (6) is arranged at the peripheral edge of the lens fixing piece (1).

3. An endoscope as defined in claim 1, wherein: the lens fixing piece (1) is columnar, the first clamping groove (3) is a groove formed in the outer wall of the lens fixing piece (1) and recessed inwards, and the positioning groove (6) is formed in the outer wall surface of the lens fixing piece (1).

4. An endoscope as defined in claim 1, wherein: the upper end of the connecting pipe (2) is also provided with an open slot (8), the open slot (8) is arranged on the same side of the second clamping slot (4), and the open slot (8) is connected with the second clamping slot (4) to form an outlet end.

5. An endoscope as defined in claim 4, wherein: the open slot (8) extends from the upper end of the connecting pipe (2) to the obliquely lower side of the connecting pipe (2), and the formed outlet end is inclined upwards.

6. An endoscope as defined in claim 1, wherein: the lens fixing device is characterized in that at least two positioning grooves (6) are formed, and the positioning grooves (6) are symmetrically formed in the outer wall of the lens fixing piece (1).

7. An endoscope as defined in claim 1, wherein: the upper end of the connecting pipe (2) is provided with a plurality of through holes or through grooves.