CN219661650U - Endoscope tip and endoscope - Google Patents

Abstract

The utility model provides an endoscope tip and endoscope, tip includes camera module, light emitting component, working channel pipe and front end seat, be equipped with first mounting hole and second mounting hole on the front end seat, first mounting hole is for adapting camera module and light emitting component's shape's through-hole is used for the installation camera module and light emitting component, the second mounting hole is for adapting the through-hole of working channel pipe shape is used for the installation the working channel pipe. Because the camera module and the light-emitting element are simultaneously installed in the first installation hole, the number of the installation holes formed in the front end seat is reduced, on one hand, the processing difficulty is reduced, and on the other hand, the wall thickness design between the installation holes is reduced, so that the axial perimeter size of the front end part is reduced, the front end part is beneficial to miniaturization, the comfort level of the front end part for a patient is improved, the front end part is further beneficial to being used in a narrow cavity, and the application range of the front end part and an endoscope is widened.

Description

Endoscope tip and endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to a front end part of an endoscope and the endoscope.

Background

With rapid development of science and technology and medical technology, endoscope minimally invasive or noninvasive medical examination and treatment have been widely popularized. In particular to a medical soft endoscope, which can enter the body through a natural duct of the human body to probe or treat pathological tissues during examination or treatment. However, because the human body cavity is narrow, when the external dimension of the front end part of the endoscope is too large, the doctor inserts the endoscope more difficult, and the mucous membrane of the human body cavity is damaged, so the perimeter of the front end part of the endoscope is as small as possible, and the comfort level of the patient is better.

However, since the camera module and the two light emitting elements of the tip portion of the conventional endoscope are separately installed in the respective corresponding holes, a plurality of installation holes need to be machined in the tip portion, and a certain wall thickness needs to be ensured between the installation holes, which not only causes difficulty in molding and machining, but also increases the perimeter size of the tip portion.

Disclosure of Invention

The utility model provides an endoscope tip and an endoscope, which can reduce the perimeter size of the tip and improve the comfort of the tip to a patient.

According to a first aspect, the present utility model provides an endoscope tip section comprising:

the camera module is used for acquiring an image of the working area;

a light emitting element to provide a light source to illuminate the work area;

a working channel tube for a perfusion or insertion instrument;

and the front end seat is provided with a first mounting hole and a second mounting hole, the first mounting hole is a through hole adapting to the shapes of the camera module and the light-emitting element and is used for mounting the camera module and the light-emitting element, and the second mounting hole is a through hole adapting to the shapes of the working channel pipe and is used for mounting the working channel pipe.

In one embodiment, the axial cross section of the tip seat is elliptical, and has a major axis and a minor axis, and the second mounting hole and the first mounting hole are arranged along the major axis direction so as to minimize the axial perimeter dimension of the tip portion.

In one embodiment, the light emitting element and the camera module are arranged along the short axis, and the light emitting element and the camera module are in an integrated structure; the light-emitting element is provided with a long side and a short side, the long side is connected with the camera module, the short side is parallel to the short axis, and the short side is flush with one side, close to the second mounting hole, of the camera module, so that the size of the front end portion is reduced.

In one embodiment, the light emitting element includes a first light emitting element and a second light emitting element, and the first light emitting element and the second light emitting element are disposed on two sides of the camera module along the short axis direction.

In one embodiment, the tip seat has a tip face, the tip face includes a first region and a second region disposed along the long axis, the first mounting hole is disposed in the first region, the second mounting hole is disposed in the second region, and a side of the second region away from the first region is inclined along a direction from a distal end to a proximal end of the tip seat so as to form a chamfer so as to enter a narrow cavity of a human body.

In an embodiment, a light emitting surface is disposed on a side of the light emitting element, which is close to the distal end of the front end seat, and a front end surface is disposed on a side of the camera module, which is close to the distal end of the front end seat, and a distance from the front end surface to the distal end protruding from the front end surface is greater than a distance from the light emitting surface to the distal end protruding from the front end surface, so as to avoid affecting quality of an image acquired by the camera module.

In one embodiment, the camera module and the light emitting element are connected to the first mounting hole in an adhesive manner, and the working channel tube is connected to the second mounting hole in an adhesive manner.

In one embodiment, the circumference of the second mounting hole is provided with a plurality of protruding through holes to form a glue flowing groove, the glue flowing groove extends along the axial direction of the front end seat and is communicated with the second mounting hole, and when the working channel pipe is in adhesive connection with the second mounting hole, the working channel pipe is used for adhesive circulation so as to improve the adhesive strength of the second mounting hole and the working channel pipe.

In one embodiment, first clamping pieces are arranged on two sides of the proximal end of the front end seat and used for being connected with the snake bone.

According to a first aspect, the present utility model provides an endoscope comprising a snake bone and the tip, wherein the tip is engaged with the snake bone.

In one embodiment, a first clamping piece is arranged on two sides of the front end seat, a second clamping piece is arranged on the snake bone, and the first clamping piece is clamped with the second clamping piece so as to realize clamping connection between the front end part and the snake bone; the first clamping piece and the second clamping piece are respectively a boss or a groove.

According to the endoscope tip and the endoscope in the above embodiments, since the camera module and the light emitting element are simultaneously installed in the first installation hole, the number of installation holes formed in the tip seat is reduced, on one hand, the processing difficulty is reduced, and on the other hand, the wall thickness design between the installation holes is reduced, so that the axial perimeter dimension of the tip is reduced, the miniaturization of the tip is facilitated, the comfort of the tip for a patient is improved, the use of the tip in a narrow cavity is further facilitated, and the application range of the tip and the endoscope is widened.

Drawings

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

FIG. 2 is an exploded view of the tip of an endoscope;

FIG. 3 is a schematic view of a distal end face layout of a distal end portion of an endoscope;

FIG. 4 is a schematic view of the layout of the distal end of the tip section of an endoscope;

FIG. 5 is a schematic side view of the distal end portion of an endoscope;

FIG. 6 is a schematic diagram of a camera module and a light emitting device;

FIG. 7 is a schematic view of a connection structure between a distal end portion of an endoscope and a snake bone;

wherein: 1. the device comprises an image pickup module, 11, a signal transmission assembly, 12, a front end face, 2, a light emitting element, 21, a first light emitting element, 22, a second light emitting element, 23, a light emitting face, 3, a front end seat, 31, a first mounting hole, 32, a second mounting hole, 33, a long shaft, 34, a short shaft, 35, a gumming groove, 36, a front end face, 361, a first area, 362, a second area, 3621, an oblique surface, 37, a first clamping piece, 38, a clamping groove, 4, a working channel pipe, 5, snake bone, 51 and a second clamping piece.

Detailed Description

The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present utility model. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present utility model have not been shown or described in the specification in order to avoid obscuring the core portions of the present utility model, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operational steps involved in the embodiments may be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of describing certain embodiments and are not necessarily intended to imply a required composition and/or order.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.

The present embodiment provides an endoscope tip portion connected to an operation portion of an endoscope through a snake bone, and the tip portion is inserted from a human body lumen into a working area to observe the condition of the working area.

Referring to fig. 1 to 6, the tip portion includes a camera module 1, a light emitting element 2, a working channel tube 4 and a tip seat 3, the camera module 1 is configured to acquire an image of a working area, the light emitting element 2 is configured to provide a light source to illuminate the working area, the working channel tube 4 is configured to perfuse or insert an instrument so as to perform a surgical operation, and the camera module 1, the light emitting element 2 and the working channel tube 4 are all disposed on the tip seat 3 and move to the working area through the tip seat 3.

Specifically, the instrument can be an instrument suitable for minimally invasive surgery, such as forceps, surgical clips and the like.

In one possible embodiment, the camera module 1 includes a signal transmission assembly 11, a lens, and a sensor, where the lens is disposed near one end of the working area, and the sensor can convert an optical signal obtained by the lens into an electrical signal, and then the electrical signal is transmitted to a control system or a display system of the endoscope through the signal transmission assembly 11, so that an operator can check the condition of the working area.

For the convenience of installing the camera module 1, the light-emitting component 2, be equipped with first mounting hole 31 and second mounting hole 32 on the front end seat 3, first mounting hole 31 is for adapting camera module 1 and the through-hole of light-emitting component 2 shape, is used for installing camera module 1 and light-emitting component 2, second mounting hole 32 is for adapting the through-hole of work channel pipe 4 shape, is used for installing work channel pipe 4, installs camera module 1 and light-emitting component 2 in same mounting hole, can reduce the setting of mounting hole, compares in front end seat 3 that is equipped with a plurality of mounting holes, and it has reduced the setting of mounting hole wall thickness, is favorable to the miniaturized design of front end seat 3 to be convenient for front end seat 3 is applied to the narrow and small chamber of human body, has expanded the application scope of front end.

In one possible embodiment, in order to further reduce the axial perimeter dimension of the tip portion and minimize the design of the tip portion, the axial cross section of the tip seat 3 is elliptical, and has a major axis 33 and a minor axis 34, and the second mounting hole 32 and the first mounting hole 31 are disposed along the major axis 33.

Unlike the prior art endoscope having a circular axial cross-section at the distal end, the oval shape reduces the dimension of the proximal shaft 34, thereby reducing the perimeter dimension, allowing the distal end to be of a flattened circular design, reducing unnecessary space, and minimizing the axial perimeter dimension of the distal end.

For convenience of description, the long axis 33 is vertically disposed, the short axis 34 is horizontally disposed, and the first mounting hole 31 and the second mounting hole 32 are vertically disposed along the direction of the long axis 33 with one end near the working area being a distal end (an end far from the operator) of each component thereof and the other end being a proximal end (an end near the operator).

It will be appreciated that the above-defined directions are not the only directions, and the arrangement direction may be different depending on the use scenario or operation habit of the tip portion, such as rotating the tip portion by 90 ° or 180 °, and the arrangement direction is changed.

In one possible embodiment, the front end of the front end seat 3 has a front end surface 36, the front end surface 36 includes a first area 361 and a second area 362 disposed along the long axis 33, the first mounting hole 31 is disposed in the first area 361, the second mounting hole 32 is disposed in the second area 362, and a side of the second area 362 away from the first area 361 is in a direction from the distal end to the proximal end of the front end seat 3 to form a chamfer 3621, i.e., a chamfer 3621 is formed by tilting from the front end to the rear end so that the front end enters a narrow cavity of a human body.

Further, the first region 361 and the second region 362 are smoothly transited to avoid forming a sharp portion to injure the internal tissues of the human body.

In one possible embodiment, the chamfer 3621 is a flat and smooth planar structure or a circular arc-shaped chamfer, and the front end of the corresponding second mounting hole 32 is a chamfer structure.

In one possible embodiment, the front end of the working channel tube 4 is connected with the rear end of the second mounting hole 32, and the working channel tube 4 is partially disposed in the second mounting hole 32, where the front end of the working channel tube 4 may be in a cylindrical structure, inserted into the second mounting hole 32, or may be in a chamfer structure adapted to the front end of the second mounting hole 32, and the front end of the working channel tube 4 is disposed flush with the front end of the second mounting hole 32.

In one possible embodiment, the light emitting element 2 and the camera module 1 are arranged along the short axis 34, and the light emitting element 2 and the camera module 1 are in an integrated structure, so that the light emitting element and the camera module 1 are convenient to be integrally installed, the installation procedure is simplified, the oval characteristic is creatively utilized, and the light emitting element and the camera module are reasonably arranged, so that the external dimension of the front end part meets the minimum design requirement.

In a possible embodiment, referring to fig. 6, the light emitting element 2 includes a first light emitting element 21 and a second light emitting element 22, and the first light emitting element 21 and the second light emitting element 22 are disposed on both sides of the camera module 1 along the short axis 34 direction.

In one possible embodiment, referring to fig. 6, the light emitting element 2 and the camera module 1 each have long sides and short sides, that is, the light emitting element 2 and the camera module 1 are both in a substantially rectangular parallelepiped structure, the light emitting element 2 is correspondingly connected to one of the long sides of the camera module 1, the short sides of the light emitting element 2 and the camera module 1 are disposed parallel to the short axis 34, and the light emitting element 2 is disposed flush with one short side of the camera module 1 near the second mounting hole 32.

Specifically, since the size of the camera module 1 is relatively larger than the size of the light emitting element 2, the camera module 1 is disposed in the center, based on the layout, the occupied space on two sides is small, the occupied space in the middle is large, and the short sides close to the second area 362 (i.e., the short sides disposed below) are flush, so that the overall size of the front end portion can be further reduced, and the design of minimizing the front end portion is more facilitated.

In one possible embodiment, referring to fig. 6, a side (front end) of the light emitting element 2 near the distal end of the front end seat 3 has a light emitting surface 23, a side (front end) of the camera module 1 near the distal end of the front end seat 3 has a front end surface 12, a distance that the front end surface 12 protrudes distally from the front end surface 36 is greater than a distance that the light emitting surface 23 protrudes distally from the front end surface 36, so that the front end surface 12 is disposed closer to the distal end of the front end seat 3 than the light emitting surface 23 is disposed relatively far from the distal end of the front end seat 3, and when the camera module 1 is prevented from being affected by a light source emitted by the light emitting element 2 entering the camera module 1.

In one possible embodiment, the camera module 1 and the light emitting element 2 are connected with the first mounting hole 31 in an adhesive manner, the working channel tube 4 is connected with the second mounting hole 32 in an adhesive manner, and when the camera module 1 and the light emitting element 2 are assembled, glue is applied between the working channel tube 4 and the second mounting hole 32 by glue application between the camera module 1 and the light emitting element 2 and the first mounting hole 31, and the glue application is performed by glue application.

Further, in order to avoid that glue flows to the front end face 12 of the camera module 1 in the glue spraying process, thereby affecting imaging quality, the front end face 12 of the camera module 1 protrudes from the front end face 36.

At this time, the light emitting element 2 is embedded in the front end seat 3, and the light emitting surface 23 thereof may be flush with the front end surface 36. The arrangement may be such that the light emitting surface 23, the front end surface 36, and the front end surface 12 are arranged in this order from the rear to the front in the axial direction of the front end holder 3.

In one possible embodiment, in order to facilitate glue flowing during the glue dispensing, so that the glue fills the gap between the second mounting hole 32 and the working channel tube 4, and improve the bonding strength, the circumference of the second mounting hole 32 is provided with a plurality of convex through holes to form a glue flowing groove 35, and the glue flowing groove 35 extends along the axis direction (the midpoint connecting line between the front end and the rear end) of the front end seat 3 and is communicated with the second mounting hole 32, and is used for flowing the adhesive (glue) when the working channel tube 4 is in bonding connection with the second mounting hole 32.

In one possible embodiment, the front end base 3 is made of plastic material by injection molding, so that the production efficiency is high and the cost is low.

In this embodiment, the endoscope tip assembly is assembled as follows: the integrated structure of the camera module 1 and the light-emitting element 2 is arranged in the first mounting hole 31, a little UV glue is driven between the inner wall of the first mounting hole 31 and the camera module 1 and the light-emitting element 2, the UV glue can be driven from the rear end, the glue flows from the rear end to the front end through longitudinal placement, the front end face 12 of the camera module 1 protrudes out of the front end face 36 of the front end seat 3 during assembly, the light-emitting face 23 of the light-emitting element 2 is flush with the front end face 12, then the overflowed glue is dipped with a proper amount of alcohol to be clean, and then the UV lamp is used for solidification. The working channel tube 4 is placed in the second mounting hole 32, a little glue is pumped between the inner wall of the second mounting hole 32 and the outer wall of the working channel tube 4, the front end of the working channel tube 4 is arranged in the second mounting hole 32 or the front end of the working channel tube is flush with the front end of the second mounting hole 32, then overflowed glue is dipped with a cotton swab to clean with a proper amount of alcohol, and then the glue is solidified by a UV lamp, so that the glue can be added from the glue flowing groove 35 when the glue is insufficient, and the bonding strength is improved. The signal transmission component 11 extends from the rear end of the front end seat 3 to be connected with a signal wire connection terminal on the endoscope main board, and images on a display are observed to obtain real-time images of the working area.

On the other hand, referring to fig. 7, the present embodiment provides an endoscope, which includes a snake bone 5 and the distal end portion, wherein the distal end portion is engaged with and connected to the snake bone 5, and at this time, the signal transmission unit 11 and the working channel tube 4 are both inserted into the inside of the snake bone 5, and move along with the movement or bending of the snake bone 5.

In one possible embodiment, the two sides of the rear end of the front end seat 3 are provided with first clamping pieces 37, the snake bone is provided with second clamping pieces 51, and the first clamping pieces 37 are clamped with the second clamping pieces 51 so as to realize the clamping connection of the front end portion and the snake bone 5.

In one possible embodiment, the first clamping member 37 and the second clamping member 51 are bosses or grooves, respectively, for example, the first clamping member 37 is a boss, the second clamping member 51 is a groove corresponding to the boss, or the first clamping member 37 may also be a groove, and the second clamping member 51 is a boss corresponding to the groove.

In one possible embodiment, in order to improve connection stability, two sides of the rear end of the front end seat 3 are further provided with clamping grooves, the clamping grooves are spaced from the first clamping pieces 37, the inside of the snake bone 5 is provided with a clamping block adapted to the clamping grooves, and when the snake bone 5 is clamped at the rear end of the front end seat 3, the clamping block is clamped in the clamping groove.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. An endoscope tip portion comprising:

the camera module is used for acquiring an image of the working area;

a light emitting element to provide a light source to illuminate the work area;

a working channel tube for a perfusion or insertion instrument;

and the front end seat is provided with a first mounting hole and a second mounting hole, the first mounting hole is a through hole adapting to the shapes of the camera module and the light-emitting element and is used for mounting the camera module and the light-emitting element, the second mounting hole is a through hole adapting to the shape of the working channel pipe and is used for mounting the working channel pipe, the axial section of the front end seat is elliptical and is provided with a long shaft and a short shaft, and the second mounting hole and the first mounting hole are distributed along the long shaft direction so as to enable the axial perimeter size of the front end part to be minimum.

2. An endoscope front end portion according to claim 1, wherein said light emitting element and said camera module are arranged along said short axis, said light emitting element and said camera module being of unitary construction; the light-emitting element is provided with a long side and a short side, the long side is connected with the camera module, the short side is parallel to the short axis, and the short side is flush with one side, close to the second mounting hole, of the camera module, so that the size of the front end portion is reduced.

3. An endoscope front end portion according to claim 2, wherein said light emitting element includes a first light emitting element and a second light emitting element, said first light emitting element and said second light emitting element being disposed on both sides of said image pickup module in said short axis direction.

4. An endoscope tip according to claim 1 and wherein said tip has a tip face, said tip face including a first region and a second region disposed along said long axis, said first mounting hole being provided in said first region, said second mounting hole being provided in said second region, a side of said second region remote from said first region being inclined in a direction from a distal end to a proximal end of said tip seat to form a chamfer for facilitating entry into a small lumen of a human body.

5. The tip of an endoscope as defined in claim 4, wherein a side of the light emitting element near the distal end of the tip holder has a light emitting surface, a side of the camera module near the distal end of the tip holder has a front end surface, and a distance from the front end surface to the distal end protruding from the front end surface is greater than a distance from the light emitting surface to the distal end protruding from the front end surface, so as to avoid affecting quality of an image obtained by the camera module.

6. An endoscope front end portion according to claim 1, wherein said camera module and light emitting element are adhesively connected to said first mounting hole, and said working channel tube is adhesively connected to said second mounting hole.

7. The endoscope front end portion according to claim 6, wherein the second mounting hole is provided with a plurality of outwardly protruding through holes on the circumference thereof to form a glue flow groove extending in the axial direction of the front end seat and communicating with the second mounting hole, and the glue flow groove is used for circulating an adhesive to enhance the bonding strength between the second mounting hole and the working channel tube when the working channel tube is bonded to the second mounting hole.

8. The endoscope front end portion of claim 1 wherein first clamping members are provided on both sides of the front end seat proximal end for connection with snake bones.

9. An endoscope comprising a snake bone and a tip according to any of claims 1-8, wherein the tip is snap-fit to the snake bone.

10. The endoscope of claim 9, wherein first clamping pieces are arranged on two sides of the front end seat, and second clamping pieces are arranged on the snake bone, and the first clamping pieces are clamped with the second clamping pieces so as to realize clamping connection of the front end part and the snake bone; the first clamping piece and the second clamping piece are respectively a boss or a groove.