CN113288368A

CN113288368A - Visual puncture needle type endoscope

Info

Publication number: CN113288368A
Application number: CN202110674201.XA
Authority: CN
Inventors: 赵普文; 赵彤; 汤竹君; 吴晓奕
Original assignee: International Peace Maternity & Child Health Hospital Of China Welfare Institute
Current assignee: International Peace Maternity & Child Health Hospital Of China Welfare Institute
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-08-24

Abstract

The invention provides a visual puncture needle type endoscope, which comprises a tip part, an insertion part and an operation part, wherein the tip part is positioned at one end of the insertion part, the operation part is positioned at the other end of the insertion part, the insertion part is provided with an inner tube and an outer tube sleeved outside the inner tube, an illuminating optical fiber and an image transmitting beam are arranged in a space between the inner tube and the outer tube, the tip part is designed in an inclined plane, an objective lens group is arranged at the tip part, and the objective lens group is connected with the image transmitting beam. According to the visual puncture needle type endoscope, the insertion part is of a double structure, an image transmission bundle and an illuminating optical fiber are embedded in a part of space, an objective lens group for imaging is combined at the front end of the image transmission bundle and can be displayed on a display, and the visual puncture needle type endoscope has direct and accurate positioning for direct visualization of entering puncture tissues and acquisition of direct judgment of required tissues.

Description

Visual puncture needle type endoscope

Technical Field

The invention relates to the technical field of medical instruments, in particular to a visual puncture needle type endoscope.

Background

In clinic, because the external pathological analysis can not be directly and intuitively performed, the application of the method of collecting and sucking tissues by puncturing the focus points in the human body in the field of multiple departments is very common. In particular, the sampling of lesions is a major tool for pathological analysis of benign or malignant disease. Since the discovery of the focus of cancer, it has been one of the major life threatening diseases for humans. How to improve the effective and accurate localization of early cancer lesions or diagnose early cancer features in an effective way has been an important academic undertaking for the research of medical scientists in all countries around the world.

The incidence and mortality of cancer in China always rise, and lung cancer, male prostate and gynecological ovarian cancer are main high-incidence cancerization species. The puncture needle is adopted to locate and obtain the suspicious point of the part to obtain the tissue analysis, which becomes a main means.

The drug administration treatment, pathological extraction and section analysis of the puncture needle under the skin of the alimentary canal or the respiratory tract and the positioning under the guidance of the B-ultrasonic are also the matching instrument and equipment for the accurate positioning of the puncture needle. Therefore, the birth of the ultrasonic endoscope in the endoscope is a special device for accurately guiding the puncture needle to the lesion. These devices are expensive and cannot be tolerated by the general clinical unit.

Another use of the puncture needle is an important role played in gynecological infertility along with the progress of medical treatment and science and technology in recent years, namely, when the female follicle is mature, the puncture needle sucks the follicle capable of being in vitro pregnant under the guidance of B ultrasonic through artificial intervention, and the follicle is implanted into the uterine cavity capable of being pregnant after artificial in vitro fertilization, thereby meeting the requirement of the female incapable of being in normal pregnancy due to gynecological diseases. This approach is popular with many families and individuals who wish to be unable to conceive of their natural childhood. However, although the non-visual puncture needle performs follicle extraction under the guidance of B-ultrasonic, the possibility of unsuccessful results still exists, and the method is an important reason of the invention in order to improve the accuracy as much as possible and meet the intuition under visualization, so that the accuracy and precision of the extraction rate can be improved under the operation of the visual puncture needle endoscope, and the requirement of clinical application can be met.

Disclosure of Invention

It is an object of the present invention to overcome at least one of the above-mentioned disadvantages of the prior art and to provide a visual lancet endoscope.

The invention provides a visual puncture needle type endoscope which is mainly characterized by comprising a tip part, an insertion part and an operation part, wherein the tip part is positioned at one end of the insertion part, the operation part is positioned at the other end of the insertion part, the insertion part is provided with an inner tube and an outer tube sleeved outside the inner tube, an illuminating optical fiber and an image transmitting bundle are arranged in a space between the inner tube and the outer tube, the tip part is designed to be an inclined plane, an objective lens group is arranged at the tip part, and the objective lens group is connected with the image transmitting bundle.

Preferably, the inner tube has a concave region, and the image bundle is located between the concave region and the outer tube.

Preferably, the cross section of the outer pipe is a circular pipe.

Preferably, the slope in the slope design of the tip part is 50 to 60 degrees.

Preferably, the operation portion has a handle, an image beam transmission port, an optical output port, and an attraction interface.

Preferably, the plane of the lens of the objective lens group is arranged perpendicular to the axial direction of the insertion portion.

Preferably, the illumination fibers are disposed at intervals on both sides of the objective lens group.

According to the visual puncture needle type endoscope, the insertion part is of a double structure, the image transmission bundle and the illuminating optical fiber are embedded in a part of space, the imaging objective lens group is combined at the front end of the image transmission bundle and can be displayed on a display, direct visualization is realized on the penetrated tissue, direct and accurate positioning is realized on the acquisition of direct judgment of the required tissue, if the B-mode ultrasound double positioning is needed, the convenience and the great improvement of the accuracy are realized, the failure rate of acquiring pathology or tissue is reduced, the teaching, popularization and short learning curve are facilitated, and the accurate acquisition work of medical care personnel is easily improved.

Drawings

Fig. 1 is a schematic structural view of a visual puncture needle endoscope of the present invention.

Fig. 2 is a schematic structural view of a distal end portion of the visual lancet endoscope of the present invention.

Fig. 3 is a cross-sectional view taken along the direction a in fig. 2.

Fig. 4 is a schematic structural view of an operation portion of the visual lancet endoscope of the present invention.

Detailed Description

In order to clearly understand the technical contents of the present invention, the following examples are given in detail. It is to be understood that the examples are illustrative of the invention and are not to be construed as limiting the invention.

Fig. 1 to 4 show an embodiment of a visual puncture needle endoscope according to the present invention. The endoscope comprises a front end part 2, an insertion part 1 and an operation part 3, wherein the front end part 2 is positioned at one end of the insertion part 1, the operation part 3 is positioned at the other end of the insertion part 1, the insertion part 1 is provided with an inner tube 4 and an outer tube 5 sleeved outside the inner tube 4, an illuminating optical fiber 8 and an image transmission beam 7 are arranged in a space between the inner tube 4 and the outer tube 5, the front end part 2 is designed to be an inclined plane, an objective lens group 6 is arranged on the front end part 2, and the objective lens group 6 is connected with the image transmission beam 7.

According to the invention, through a double-layer design, the superfine imaging optical fiber and the illumination optical fiber are reserved and implanted into the space of the inner tube and the outer tube, and the illumination optical fiber can introduce the outside to illuminate the inside of the cavity, so that the precise positioning and the visual assistance for acquiring the tissues of a patient are realized. The outer diameter of the outer tube is not more than 14G, the inner part of the inner tube is a channel for obtaining tissues, the aperture is not less than 0.85mm, and the effective length of the insertion part entering the human body is about 35 cm. In addition, imaging and light guide fibers are embedded inside, so that the strength is high, the toughness and elasticity are good, the possibility of bending and breaking is low, and the clinical use requirement of smooth insertion is met.

The two sides of the objective lens group are provided with the illuminating optical fibers, and the illuminating optical fibers on the two sides are slightly distant from the objective lens, so that the situation that the optical fibers are too close to the imaging objective lens and the illuminating light is emitted into the imaging objective lens to generate light reflection to influence the observation effect of the image is avoided.

As shown in fig. 2, the plane of the lenses of the objective lens group 6 is arranged perpendicular to the axial direction of the insertion portion. The objective lens group has its lens exposed outside and its plane perpendicular to the channel of the inserting part, so that when liquid is required to be pumped, the liquid may be sucked to wash the surface of the objective lens for clear observation.

As shown in fig. 2 to 3, the inner tube 4 has a concave region, and the image-transmitting bundle 7 is located between the concave region and the outer tube 5. That is, the cross section of the outer tube is a circular tube, and the cross section of the inner tube is a special tube.

The inclination in the inclined plane design of the tip part 2 is 50-60 degrees, preferably 55-degree inclined plane type design, and the insertion resistance is small.

As shown in fig. 4, the operation unit includes a handle 10, an image beam transmission port 11, an optical output port 12, and a suction port 13, and the suction port 13 includes a channel 14. The end of the image transmission beam is fixed at the position of the image transmission beam port 11 and is used for butt joint with an external camera system with an imaging eyepiece, the imaging camera system captures images at the front end, optical signals are converted into electric signals after image processing of an electronic processor of the sensor, and the electric signals are displayed on a display in a video output mode so as to select necessary diagnosis in the cavity or select tissue sample liquid to be extracted.

The internal channel of the insertion part and the operating part can be combined by a plastic tube through piece of an injection molding part, and the combined plastic tube piece is provided with an opening and closing interface control piece at the tail part thereof and used for opening and closing during suction.

The product of the invention is preferably a disposable product, avoids the cross infection of repeated use, and realizes visualization, intuition and convenience.

According to the visual puncture needle type endoscope, the insertion tube is of a double structure, the image transmission bundle and the illuminating optical fiber are embedded in a part of space, the imaging objective lens group is combined at the front end of the image transmission bundle and can be displayed on a display, direct visualization is realized on the penetrated tissue, direct and accurate positioning is realized on the acquisition of direct judgment of the required tissue, if the B-mode ultrasound double positioning is needed, the convenience and the great improvement of the accuracy are realized, the failure rate of acquiring pathology or tissue is reduced, the teaching, popularization and short learning curve are facilitated, and the accurate acquisition work of medical care personnel is easily improved.

The present invention is not limited to the above-described embodiments, but covers all changes and modifications that may be made without departing from the spirit and scope of the invention. Such changes and modifications are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the invention.

Claims

1. A visual puncture needle type endoscope is characterized by comprising a tip part, an insertion part and an operation part, wherein the tip part is positioned at one end of the insertion part, the operation part is positioned at the other end of the insertion part, the insertion part is provided with an inner tube and an outer tube sleeved outside the inner tube, an illuminating optical fiber and an image transmitting beam are arranged in a space between the inner tube and the outer tube, the tip part is designed to be an inclined plane, an objective lens group is arranged at the tip part, and the objective lens group is connected with the image transmitting beam.

2. The visualization needle endoscope of claim 1, wherein the inner tube has a concave region and the image bundle is positioned between the concave region and the outer tube.

3. The visualization needle endoscope of claim 2, wherein the cross-section of the outer tube is a circular tube.

4. The visual puncture needle endoscope of claim 1, wherein the slope of the bevel design of the tip portion is 50 ° to 60 °.

5. The visualization trocar endoscope of claim 1, wherein the operating portion has a handle, an image bundle port, a light output port, and a suction interface.

6. The visualization trocar endoscope according to claim 1, wherein the plane of the lens of the objective lens group is disposed perpendicular to the axial direction of the insertion portion.

7. The visualization trocar endoscope of claim 1, wherein the illumination fibers are disposed in spaced relation on both sides of the objective lens assembly.