Lens assembly of endoscope
阅读说明:本技术 一种内窥镜的镜头组件 (Lens assembly of endoscope ) 是由 冯宇 马骁萧 付玲 于 2019-09-29 设计创作,主要内容包括:本发明提供了一种内窥镜的镜头组件,在需要收缩管道时,将电磁铁通电,后端相邻所述单元管的所述钢环被所述电磁铁吸引而磁性连接于所述驱动部,所述折叠部弹性折叠,所述外管道收缩,同时,由于内管道为侧壁形成有波纹褶皱的的可折叠软管,当外管道收缩时,也能带动内管道收缩,当需要伸长管道时,只需要将电磁铁的电流断开,所述折叠部在自身弹力作用下恢复原状,所述外管道伸长,同时内管道相应伸长,本发明伸缩管道的方式简单易操作,可以在内窥镜领域大量推广使用。(The invention provides a lens component of an endoscope, when a pipeline needs to be contracted, an electromagnet is electrified, a steel ring at the rear end adjacent to a unit pipe is attracted by the electromagnet and is magnetically connected with a driving part, a folding part is elastically folded, an outer pipeline is contracted, meanwhile, because an inner pipeline is a foldable hose with corrugated wrinkles formed on the side wall, when an outer pipeline is contracted, the inner pipeline can be driven to be contracted, when the pipeline needs to be elongated, only the current of the electromagnet needs to be cut off, the folding part is restored under the action of the elasticity of the folding part, the outer pipeline is elongated, and meanwhile, the inner pipeline is correspondingly elongated.)
1. The lens assembly of the endoscope is characterized by comprising an object lens, an outer pipeline and an inner pipeline;
the outer pipeline comprises a plurality of unit pipes which are sequentially connected, each unit pipe comprises a pipe body, a driving part and a folding part, the driving part is installed at the rear end of the pipe body, the folding part is located at the front end of the pipe body and can be elastically folded relative to the pipe body, an electromagnet is installed in the driving part, a steel ring is fixedly installed on the outer side of the bending part, an electrifying circuit for electrifying the magnet is installed in the pipe body, the driving part of each unit pipe is connected with the folding part of the adjacent rear end unit pipe, when the electromagnet of the unit pipe is electrified, magnetism is generated, the steel ring of the rear end adjacent unit pipe is attracted by the electromagnet and is magnetically connected to the driving part, the folding part is elastically folded, and the outer pipeline is contracted; when the electromagnet is powered off, the magnetism disappears, the folding part restores to the original shape under the action of the elasticity of the folding part, and the outer pipeline extends;
the inner pipeline is sleeved inside the outer pipeline and is a foldable hose with corrugated wrinkles formed on the side wall, and a communication line for electrically connecting with the objective lens is installed in the inner pipeline;
the object lens is arranged at one end of the communication line and is fixedly connected with the rear ends of the inner pipeline and the outer pipeline.
2. The lens assembly of an endoscope of claim 1, wherein an electrical line for communicating the electromagnet is located between the inner conduit and the outer conduit.
3. The lens assembly of an endoscope of claim 1, wherein the driving portion is an annular protrusion located at an outer side of a rear end of the tube body, an annular cavity is formed in the annular protrusion, a sidewall of the tube body forms a wire passage communicated with the annular cavity, the electromagnet is fixedly installed in the annular cavity, one end of the wire passage is electrically connected with the electromagnet, and the other end of the wire passage extends into the tube body through the wire passage.
4. The lens assembly of an endoscope according to claim 3, wherein an annular groove is formed on a side of the driving part away from the front end of the tube body, and the annular groove is engaged with the steel ring of the power tube adjacent to the rear end when the steel ring is magnetically coupled to the electromagnet.
5. The lens assembly of an endoscope of claim 1, wherein the tube body is made of a plastic material and the folded portion is made of a silicone material.
Technical Field
The invention relates to the field of endoscopes, in particular to a lens assembly of an endoscope.
Background
The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software, comprises an image sensor, an optical lens, a light source lighting device and a mechanical device, and can enter the stomach through the oral cavity or enter the body through other natural pores. When the endoscope is used, a probe of the endoscope for scanning internal organs of a human body is guided in through a working channel of the endoscope so as to scan the organs to be examined, the change of relevant parts can be directly observed, the using effect of the endoscope can be directly influenced by the quality of the image obtained by the probe, for example, an endoscope doctor can observe ulcers or tumors in the stomach, and an optimal treatment scheme is made according to the quality.
In order to scan the organs to be examined layer by layer, the probe needs to be moved to scan the organs layer by layer, but the existing endoscope needs to extend into more pipelines to enter the human body when the probe is moved due to a certain length of the pipeline, and is inconvenient to operate when the probe is extracted.
Disclosure of Invention
The invention provides a lens assembly of an endoscope, which is used for solving the technical problems.
The scheme for solving the technical problems is as follows: the lens assembly of the endoscope is characterized by comprising an object lens, an outer pipeline and an inner pipeline;
the outer pipeline comprises a plurality of unit pipes which are sequentially connected, each unit pipe comprises a pipe body, a driving part and a folding part, the driving part is installed at the rear end of the pipe body, the folding part is located at the front end of the pipe body and can be elastically folded relative to the pipe body, an electromagnet is installed in the driving part, a steel ring is fixedly installed on the outer side of the bending part, an electrifying circuit for electrifying the electromagnet is installed in the pipe body, the driving part of each unit pipe is connected with the folding part of the adjacent rear end unit pipe, magnetism is generated when the electromagnet of the unit pipe is electrified, the steel ring of the rear end adjacent unit pipe is attracted by the electromagnet and is magnetically connected with the driving part, the folding part is elastically folded, and the outer pipeline is contracted; when the electromagnet is powered off, the magnetism disappears, the folding part restores to the original shape under the action of the elasticity of the folding part, and the outer pipeline extends;
the inner pipeline is sleeved inside the outer pipeline and is a foldable hose with corrugated wrinkles formed on the side wall, and a communication line electrically connected with the objective lens is installed in the inner pipeline;
the object lens is arranged at one end of the communication line and is fixedly connected with the rear ends of the inner pipeline and the outer pipeline.
When the pipeline needs to be contracted, the electromagnet is electrified, the steel ring at the rear end adjacent to the unit pipe is attracted by the electromagnet and is magnetically connected to the driving part, the folding part is elastically folded, the outer pipeline is contracted, meanwhile, the inner pipeline is a foldable hose with corrugated wrinkles formed on the side wall, when the outer pipeline is contracted, the inner pipeline can be driven to be contracted, when the pipeline needs to be elongated, only the current of the electromagnet needs to be cut off, the folding part is restored under the action of the elasticity of the folding part, the outer pipeline is elongated, and meanwhile, the inner pipeline is correspondingly elongated.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic sectional view of a lens assembly of an endoscope according to the present invention;
fig. 2 is a partially enlarged view of the area a in fig. 1.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in fig. 1 and 2, the present invention provides a lens assembly of an endoscope, including an objective lens 1, an
the
Taking the
When the
The
the object lens 1 is installed at one end of the
In order to avoid interference caused by the flow of the electric circuit between the
Specifically, the
In order to ensure that the
In the present embodiment, taking the
For the outer pipe with multiple sections of unit pipes, in order to realize the telescopic control of each section of unit pipe, electromagnets corresponding to each unit pipe can be respectively connected by different electrified circuits, so that the specific section of unit pipe can be determined to be folded and contracted according to the requirement.
For example, in this embodiment, the
Since the
When the pipeline needs to be contracted, the electromagnet is electrified, the steel ring of the rear end adjacent unit pipe is attracted by the electromagnet and is magnetically connected to the driving part, the folding part is elastically folded, the outer pipeline is contracted, meanwhile, the inner pipeline is a foldable hose with corrugated wrinkles formed on the side wall, when the outer pipeline is contracted, the inner pipeline can be driven to be contracted, when the pipeline needs to be elongated, only the current of the electromagnet needs to be cut off, the folding part is restored under the action of the elasticity of the folding part, the outer pipeline is elongated, and meanwhile, the inner pipeline is correspondingly elongated.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
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