CN214804563U - Superfine-diameter electronic endoscope and endoscope system - Google Patents

Abstract

The utility model provides a very thin footpath electronic endoscope, including operation portion and insertion portion sheath, be equipped with a plurality of connection interfaces in the operation portion, the first end and the operation portion of insertion portion sheath are connected, and the second end is equipped with lighting module, image acquisition module and instrument channel export at least to be equipped with the intercommunication in inside the instrument channel chamber pipe of instrument channel export, the second end terminal surface of insertion portion sheath sets up to be the inclined plane of certain angle with the body axis for the normal line, lighting module, image acquisition module and instrument channel export arrange in on the inclined plane. The scheme of the utility model compare current electronic endoscope, further reduced the diameter of insertion portion sheath pipe.

Description

Superfine-diameter electronic endoscope and endoscope system

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to superfine footpath electronic endoscope and endoscope system.

Background

Endoscope diagnosis and treatment is an important means of minimally invasive surgery, and generally, an endoscope is sent to a focus in a human body through a normal cavity or a channel established manually, and the local focus is observed, cut, crushed, drained or rebuilt through the direct vision of the endoscope, so that the purpose of treatment is achieved. The medical endoscope observes internal tissues through tiny wounds or natural ducts, has small operation incision for patients, little pain in the operation process, quick postoperative recovery and light response, and greatly improves the acceptance of patients to the operation. At present, the endoscope interventional operation for treating diseases of respiratory system, digestive system and urinary system becomes the mainstream, and the related operation amount is more and more.

The existing endoscope system can be roughly divided into two types of a traditional endoscope and an electronic endoscope, the two types generally comprise an endoscope main body, an image host and a display, a connector for inserting instruments or connecting equipment is arranged on an operating handle of the endoscope main body, an inserting part sheath tube is used for extending into a normal cavity or a channel established manually for image acquisition and operation, and acquired images are displayed on the display after being processed by the host. The main differences between conventional endoscopes and electronic endoscopes are the way in which images are acquired: the image of the traditional endoscope is collected by the image optical fiber in the sheath of the insertion part and is transmitted to the image host for processing, and the illumination light source is generally transmitted to the tail end of the sheath of the insertion part from the image host by the illumination optical fiber. The electronic endoscope usually adopts an electronic imaging element CCD as an image acquisition module, converts an image signal of an object in a cavity into an electronic signal, sends the electronic signal to an image host for processing, and displays the processed image on a display for a doctor to observe and diagnose.

In any type of endoscope, an image acquisition and illumination module, an opening of an instrument channel and the like are integrated at the end of an insertion part sheath. The degree of integration of these modules and structures at the end of the sheath directly affects the diameter of the insertion portion sheath, which in turn has a direct impact on the use of the endoscope in surgery. Especially for the group with narrower body cavity channels such as children and the like compared with adults, and the thinner cavity channels such as bile ducts, fallopian tubes and the like in the human body, the diameter of the sheath tube of the insertion part directly determines whether the endoscopic operation can be carried out, and the difficulty of doctor operation and the damage degree to the body cavity channels of the patients in the operation process.

On the other hand, due to the limitation of electronic process technology at a certain stage, the size of the electronic imaging element CCD cannot be small under an ideal state on the premise of ensuring the imaging quality, and when the electronic imaging element CCD and other modules and the opening are integrated at the tail end of the endoscope insertion part sheath, the diameter of the insertion part sheath is directly limited to be further reduced. Therefore, every point of reduction in diameter is extremely difficult and expensive for the insertion portion sheath of the endoscope.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an electronic endoscope and endoscope system of very thin footpath compares current electronic endoscope, has further reduced the diameter of insertion portion sheath pipe.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides a very thin footpath electronic endoscope, includes operation portion and insertion portion sheath, be equipped with a plurality of connection interfaces in the operation portion, the first end and the operation portion of insertion portion sheath are connected, and the second end is equipped with lighting module, image acquisition module and instrument passageway export at least to be equipped with the intercommunication in inside the instrument passageway chamber pipe of instrument passageway export, the second end terminal surface of insertion portion sheath sets up to be the inclined plane that normal and body axis are certain angle, lighting module, image acquisition module and instrument passageway export arrange in on the inclined plane.

Preferably, the included angle between the normal of the inclined plane and the axis of the pipe body is 20-45 degrees.

Further preferably, the included angle between the normal of the inclined plane and the axis of the pipe body is 26-35 degrees.

Further, the sheath of the insertion part is a metal sheath with a bevel cut at the tail end, and the bevel is an elliptical metal surface welded on the bevel cut at the edge.

Further, the image acquisition module is a CMOS disposed on the inclined plane, and the illumination module is at least one LED disposed on the inclined plane.

Furthermore, the central points of the image acquisition module and the instrument channel outlet are both positioned on the long axis of the elliptical metal surface, and the illumination module is two LEDs symmetrically arranged on the basis of the long axis of the elliptical metal surface.

Furthermore, the insertion part sheath tube is provided with a bendable part near the second end, at least one control steel wire is further arranged in the insertion part sheath tube, one end of the control steel wire is connected with a steel wire operating mechanism on the operating part, and the other end of the control steel wire is fixed on the inclined plane.

Further, the bendable part on the insertion sheath is a bendable snake bone structure.

The utility model also provides an electronic endoscope system, include as above the very thin footpath electronic endoscope, still include the image host computer, it is used for receiving the image information that the image acquisition module gathered is handled to and display device, it is used for showing image data after the image host computer is handled.

The utility model has the advantages of as follows:

the utility model discloses a very thin footpath electronic endoscope sets up to the inclined plane through the end with the portion of inserting sheath pipe, has increased the area of the terminal surface of sheath pipe to when the pipe diameter of the portion of inserting sheath pipe further shrinks, still can integrate original image acquisition module, lighting module and apparatus channel export on this inclined plane. Compared with the existing electronic endoscope, the diameter of the sheath tube of the insertion part of the electronic endoscope is further reduced, the electronic endoscope can be better suitable for groups with more narrow and small body cavities such as children and the like compared with adults, and thinner cavities such as bile ducts, fallopian tubes and the like in a human body, the operation effect is further improved, and the difficulty of operation of doctors and the damage degree to the body cavities of patients in the operation process are reduced.

Further, the utility model discloses a very thin footpath electronic endoscope through export image acquisition module, lighting module and apparatus channel rationally arranges on the terminal oval inclined plane of sheath pipe, when the optimization utilizes oval inclined plane area, has guaranteed the convenience of illumination and image acquisition's effect and operation, has good practicality.

Drawings

Fig. 1 is a schematic view of a main structure of an embodiment of a very small-diameter electronic endoscope according to the present invention.

Fig. 2 is a schematic view of the distal end of the sheath of the insertion portion of the very small diameter electronic endoscope of the present invention.

Fig. 3 is a schematic cross-sectional view of the distal end of the sheath of the insertion portion of the very small diameter electronic endoscope of the present invention.

Fig. 4 is a schematic diagram of a first example of arrangement of the end device of the sheath of the extra-fine electronic endoscope according to the present invention.

Fig. 5 is a schematic diagram of a second example of arrangement of the device at the end of the sheath of the extra-fine electronic endoscope according to the present invention.

Detailed Description

For further understanding of the present invention, preferred embodiments of the present invention will be described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the claims of the present invention.

Fig. 1 is a schematic diagram showing a main structure of an embodiment of an extra-small diameter electronic endoscope according to the present invention. The sheath catheter comprises an operation part 2 and an insertion part sheath catheter 1, wherein the operation part 2 is provided with a plurality of connecting interfaces for electrical connection or insertion of instruments, and is provided with a steel wire operation part 20 for operating steel wires. The first end of the insertion part sheath tube 1 is connected with the operation part 2, the end part of the second end is provided with an illumination module, an image acquisition module, an instrument channel outlet and the like, and an instrument channel lumen communicated with the instrument channel outlet is arranged inside the insertion part sheath tube. The circuit connecting the lighting module and the image acquisition module is connected with the circuit board inside the operation part 2 through the internal channel of the insertion part sheath tube 1, or is directly connected with an external host or equipment. An operation steel wire is further arranged in the insertion part sheath tube 1, one end of the operation steel wire is connected with the steel wire operation part 20 on the operation part 2, and the other end of the operation steel wire is fixed with the end part of the insertion part sheath tube 1. Simultaneously, but insertion portion sheath pipe 1 is being equipped with one section flexion near second end department to through controlling steel wire operation portion 20, can drive the end of insertion portion sheath pipe 1 through the steel wire and bend, so that carry out the operation. As a preferred embodiment, the bendable portion is a machined bendable snake bone structure.

It should be noted that the electronic endoscope main body in the above embodiment is only a specific example given for explaining the basic structure of the electronic endoscope, and does not constitute a specific limitation to the technical solution of the present invention. In practical applications, the electronic endoscope main body may have other structures or forms, and is not limited in particular.

As shown in fig. 2, in the very small diameter electronic endoscope of the present invention, the second end face of the sheath of the insertion portion is an inclined plane 10 having a normal line forming a certain angle with the axis of the tube body, and the image acquisition module 11, the illumination module and the instrument channel outlet 13 are arranged on the inclined plane 10.

Specifically, as a preferred embodiment, the insertion sheath 1 in this embodiment is a metal sheath having a bevel cut at its end, and the corresponding bevel 10 is an elliptical metal surface with its edge welded to the bevel cut. By adopting the design, the inclined plane 10 and the metal sheath tube can be conveniently processed into a seamless integrated structure, and the installation firmness of the image acquisition module and the illumination module fixed on the inclined plane is ensured.

In the present embodiment, the image capturing module 11 is a CMOS disposed on the inclined plane 10, the lighting module is at least one LED disposed on the inclined plane, and the at least one LED is fixed on the inclined plane 10, and the corresponding pin is connected to the wire inside the insertion sheath 1 by soldering.

In the present embodiment, the angle α between the normal of the inclined plane 10 and the axis of the tube body of the insertion portion sheath tube 1 is preferably 20 ° to 45 °, and more preferably 26 ° to 35 °.

As shown in fig. 3, assuming that the diameter of the tube body of the insertion portion sheath tube 1 is d, the length of the major axis of the corresponding inclined surface 10 is L when the included angle is α (it should be understood by those skilled in the art that α here is the included angle between the normal line of the corresponding inclined surface 10 and the tube axis of the insertion portion sheath tube 1). Practical calculations show that when α is 26 °, the available size of the sheath tip will increase from d ≈ 2.2mm (7f) to L ≈ 2.45 mm; whereas when α is 34 °, the available size of the sheath tip will increase from d ≈ 2.5mm (8f) to L ≈ 3.0 mm. From the practical processing angle of the endoscope under the current technological level, the end face is set to be the inclined plane, the available area is substantially increased, and under the condition that the CMOS and the LED with the same size are used, the tube body of the insertion part sheath tube 1 can be effectively reduced (about 1f), and the practical effect is obvious.

As a further preferred embodiment, in this embodiment, the central points of the image capturing module 11 and the instrument channel outlet 13 are both located on the long axis of the elliptical metal surface, i.e. the inclined surface 10, and the illuminating module is two LEDs symmetrically arranged based on the long axis of the elliptical metal surface.

In the illustrated version as shown in fig. 4, the illumination module is arranged next to the two LEDs 12a and 12b of the image acquisition module 11 CMOS. In the illustrated version as shown in fig. 5, when the tube diameter of the insertion portion sheath 1 is further reduced, the two LEDs 12a and 12b of the illumination module are arranged side by side between the image acquisition module 11CMOS and the instrument channel outlet 13.

In the two display schemes, the arrangement of the CMOS, the LED and the instrument channel outlet on the elliptical inclined plane at the tail end of the sheath tube is reasonably optimized, so that the available area of the elliptical inclined plane is optimally utilized, and meanwhile, the effects of illumination and image acquisition and the convenience of operation are ensured.

The embodiment of the utility model also comprises an electronic endoscope system, it includes as above-mentioned embodiment the very thin footpath electronic endoscope still includes the image host computer, and it is used for receiving the image information that the image acquisition module gathered and handles to and display device, it is used for showing the image data after the image host computer is handled. The specific implementation manner does not affect the implementation of the technical solution of the present invention, and is not described in detail herein.

The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (9)

1. The utility model provides a very thin footpath electronic endoscope, includes operation portion and insertion portion sheath, be equipped with a plurality of connection interfaces in the operation portion, the first end and the operation portion of insertion portion sheath are connected, and the second end is equipped with illumination module, image acquisition module and instrument passageway export at least to be equipped with the intercommunication in inside the instrument passageway chamber pipe of instrument passageway export, its characterized in that, the second end terminal surface of insertion portion sheath sets up to be the inclined plane that normal and body axis are certain angle, illumination module, image acquisition module and instrument passageway export arrange in on the inclined plane.

2. The very fine electronic endoscope of claim 1 wherein the angle between the normal to the bevel and the axis of the tube is between 20 ° and 45 °.

3. The very fine electronic endoscope of claim 2 wherein the angle between the normal to the bevel and the axis of the tube is between 26 ° and 35 °.

4. The very small-diameter electronic endoscope according to any of claims 1 to 3, wherein the insertion portion sheath is a metal sheath having a chamfered edge at its distal end, and the chamfered edge is an elliptical metal surface having an edge welded to the chamfered edge.

5. The very small diameter electronic endoscope of claim 4 wherein the image capture module is a CMOS disposed on a bevel and the illumination module is at least one LED disposed on a bevel.

6. The very small diameter electronic endoscope of claim 5 wherein the image capture module and the center point of the instrument channel exit are both located on the major axis of the elliptical metal surface and the illumination module is two LEDs symmetrically disposed based on the major axis of the elliptical metal surface.

7. The very small diameter electronic endoscope of claim 4, wherein the insertion portion sheath is provided with a bendable portion near the second end, and at least one control wire is further provided in the insertion portion sheath, one end of the control wire is connected to the wire operating mechanism of the operating portion, and the other end is fixed to the inclined surface.

8. The very small diameter electronic endoscope of claim 7 wherein the bendable portion of the insertion sheath is of a bendable serpentine configuration.

9. An electronic endoscope system, comprising the very small electronic endoscope according to any of claims 1-8, further comprising an image host for receiving and processing image information collected by the image collecting module, and a display device for displaying image data processed by the image host.

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