Electronic endoscope

Abstract

The invention relates to an electronic endoscope, and belongs to the field of medical endoscopes, the electronic endoscope comprises an insertion part and a handheld part, the insertion part comprises a supporting tube, a movable front end and an adjusting rod, an image acquisition unit is arranged in the movable front end, a plurality of opening grooves distributed circumferentially are formed in the side face of the near end of the movable front end, and spherical grooves are formed in the opening grooves; a plurality of mounting through holes are formed in the outer wall of the supporting pipe, the adjusting rod is movably mounted in the mounting through holes, a connecting ball head is arranged on the end face of the far end of the adjusting rod, the connecting ball head is movably mounted in the spherical groove, and the near end of the supporting pipe is connected with the handheld part. The angle of the movable front end can be adjusted, so that the endoscope has higher flexibility in the complex diagnosis and treatment process, examination and treatment can be more accurately carried out, and the operation flexibility and accuracy are greatly improved especially on the part needing fine operation.

Description

Technical Field

[0001] The invention belongs to the field of medical endoscopes, and in particular relates to an electronic endoscope. Background Art

[0002] In modern medicine, endoscopic technology is widely used in diagnosis and treatment, especially in minimally invasive surgery. Traditional optical endoscopes use optical systems, and their viewing angles are usually fixed and cannot be adjusted as needed, which makes them less operable in some complex surgical environments, especially in narrow and limited space lesion areas.

[0003] Although the viewing angle of traditional electronic endoscopes can be adjusted electronically, they usually have a fixed viewing angle range. When adjusting the viewing angle, the bending radius is too large, making it difficult to adapt to the narrow space of the lesion area. Especially when inspecting and treating small joints such as joint cavities, there are problems such as limited field of view and inconvenient operation.

[0004] Therefore, the prior art still has limitations in the application of endoscopes in narrow lesion areas. In order to overcome these problems, an electronic endoscope is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an electronic endoscope, which improves the visual field of surgical operations in narrow spaces.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] An electronic endoscope comprises an insertion part and a handheld part, wherein the insertion part comprises a support tube, a movable front end and an adjustment rod, an image acquisition unit is arranged in the movable front end, a plurality of circumferentially distributed open grooves are opened on the proximal side of the movable front end, and a spherical groove is arranged in the open groove;

[0008] The outer wall of the support tube is provided with a plurality of mounting through holes, the adjusting rod is movably mounted in the mounting through holes, the distal end surface of the adjusting rod is provided with a connecting ball head, and the connecting ball head is movably mounted in the spherical groove.

[0009] The proximal end of the support tube is connected to the handheld part.

[0010] Beneficial effects:

[0011] The electronic endoscope disclosed in the present invention can achieve angle adjustment of the movable front end by providing an adjustment rod and a structural design of the movable front end. The direction of the movable front end can be accurately adjusted within an angle range of -15° to 15° through the movement of the adjustment rod, thereby enabling the endoscope to have higher flexibility in complex diagnosis and treatment processes and to be able to perform inspections and treatments more accurately, especially in areas requiring delicate operations, thereby greatly improving the flexibility and accuracy of operations.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1 It is an overall structural diagram of the embodiment of the present disclosure;

[0015] Figure 2 This is a diagram showing the internal structure of the handle according to an embodiment of the present disclosure;

[0016] Figure 3 This is a structural diagram of the adjustment module of the embodiment of the present disclosure;

[0017] Figure 4 This is a structural diagram of a handle according to an embodiment of the present disclosure;

[0018] Figure 5 This is a structural diagram of the insertion part of an embodiment of the present disclosure;

[0019] Figure 6 A structural diagram of the positioning column installed in the embodiment of the present disclosure;

[0020] Figure 7 This is a structural diagram of the adjustment rod according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that the "distal end" here refers to the end away from the operator, and the "proximal end" refers to the end close to the operator.

[0023] Embodiment 1, Figure 5Schematic diagram of the structure of an electronic endoscope adjustable lens in some embodiments. The electronic endoscope adjustable lens provided by the present disclosure is used for endoscopic surgery, mainly for solving the limitation of the viewing angle of the endoscope in a narrow lesion area. In some embodiments, the electronic endoscope adjustable lens includes an insertion portion 2, the insertion portion 2 includes a support tube 21, a movable front end 22 and an adjustment rod 5; an image acquisition unit 23 is arranged in the movable front end 22, and three circumferentially distributed opening grooves 221 are opened on the proximal side of the movable front end 22, and a spherical groove 222 is arranged in the opening groove 221;

[0024] Three mounting holes 211 are provided on the outer wall of the support tube 21, and the adjusting rod 5 is movably installed in the mounting holes 211; in this way, sufficient support is provided to the adjusting rod 5, and at the same time, the adjusting rod 5 can slide in the mounting holes 211 to complete the adjustment; further, the mounting holes 211 can be processed by one-piece plastic injection molding, or by metal material. When using metal material, for the convenience of processing, three thin tubes including the mounting holes 211 can be set on the outside or inside of the support tube 21 body by welding, and the fixing method can be welding or glue bonding.

[0025] like Figure 7 As shown, the movable front end 22 is supported and installed by three adjusting rods 5. The distal end face of the adjusting rod 5 is provided with a connecting ball head 51, and the connecting ball head 51 is movably installed in the spherical groove 222. By setting the open groove 221, more adjustment angles can be given to the connecting ball head 51 and its adjusting rod 5; the adjusting rod 5 is an elastic rod that can be slightly deformed, and the material of the adjusting rod 5 can be stainless steel, nickel-titanium alloy, titanium alloy and the like.

[0026] The three adjustment rods 5 support the movable front end 22, and the angle of the movable front end 22 is adjusted by adjusting the relative positions of the three adjustment rods 5; specifically, the connection points between the three adjustment rods 5 and the spherical groove 222 are divided into three points a, b, and c. When a, b, and c are in the same plane, the movable front end 22 is in a horizontal position;

[0027] When point a moves toward the distal end relative to points b and c, points b and c move backward synchronously, and the movable front end 22 rotates toward point a; similarly, when point b or point c moves toward the distal end, the movable front end 22 will also rotate toward point b or point c; when point a moves toward the proximal end relative to points b and c, points b and c move forward synchronously, and the movable front end 22 rotates in the opposite direction to point a; similarly, when point b or point c moves toward the proximal end, the movable front end 22 will also rotate in the opposite direction to point b or point c; it can be understood that the adjustment rod 5 has a certain elasticity, and when the movable front end 22 rotates, the position deviation caused by the change in angle can be corrected by elastic deformation.

[0028] In some embodiments, the rotation angle of the adjustment rod 5 toward the three points a, b, and c is -15°-15°, which can ensure that a suitable viewing angle is obtained while ensuring the supporting effect of the adjustment rod 5 on the movable front end 22 without causing excessive deformation of the adjustment rod 5.

[0029] In some embodiments, a heat shrink tube 3 is provided on the outside of the insertion portion 2, and the heat shrink tube 3 covers the support tube 21 and the movable front end 22. Such a design can ensure insulation while completing the sealing of the gap between the support tube 21 and the movable front end 22. Furthermore, the heat shrink tube 3 can also assist in supporting and fixing the movable front end 22 to ensure the stability of the movable front end 22.

[0030] like Figure 1-Figure 2 As shown, the support tube 21 is used as a support component, and the proximal end of the support tube 21 is connected to the connecting end 14 provided on the handheld part 1; it should be noted that the fixing method of the support tube 21 and the connecting end 14 can be selected from threads, glue, interference fit, etc.;

[0031] An adjusting device is installed on the handheld part 1, and the adjusting device is used to control the movement of the adjusting rod 5. The adjusting device can drive the adjusting rod 5 by direct or indirect migration.

[0032] In some embodiments, the adjusting rod 5 is as follows Figure 7 As shown, the adjusting rod 5 is in the shape of a thin rod, a connecting ball head 51 is provided at the far end of the adjusting rod 5, a connecting column 52 is provided near the proximal end of the adjusting rod 5, and a side slider 53 is provided on the side of the connecting column 52.

[0033] like Figure 2-Figure 4 As shown, in some embodiments, the handheld portion 1 is provided with an adjustment device mounting groove 11, a mounting through hole 13 is provided below the mounting groove 11, a plurality of clearance through holes 12 are provided on the side of the mounting through hole 13, and a mounting positioning column 7 is fixedly installed in the mounting through hole 13;

[0034] Figure 4 , Figure 7 As shown, the installation positioning column 7 is composed of a distal section 73, an intermediate section 71 and a proximal section 72 in sequence. The intermediate section 71 is provided with a proximal installation hole 711, and the proximal end of the adjustment rod 5 is movably installed in the proximal installation hole 711; the distal section 73 is provided with three circumferentially distributed first through holes 731, and the side of the first through hole 731 is provided with a side opening groove 732; the connecting column 52 is movably arranged in the first through hole 731, and the side slider 53 is movably arranged in the side opening groove 732; the side slider 53 is connected to the traction wire 45, and the traction wire 45 is controlled to apply tension so as to bring the connecting column 52 connected thereto to move toward the proximal end. It should be noted here that the traction wire 45 can be made of flexible nickel-titanium wire to provide only tension, or it can be made of titanium alloy to provide both tension and thrust;

[0035] Figure 2-Figure 6 As shown, it is a technical solution that only provides pulling force. Specifically, the proximal section 72 is a mounting ball, and an adjustment module 4 is provided in the mounting groove 11. The adjustment module 4 includes an adjustment disk 42. A spherical mounting groove 43 is provided in the center of the adjustment disk 42. The spherical mounting groove 43 is movably mounted on the proximal section 72. Three evenly distributed connection points are provided on the adjustment disk 42. The connection points are connected to the side slider 53 through a traction rope 45. The traction rope 45 can be made of high-strength materials such as titanium alloy, nickel-titanium wire, and stainless steel wire.

[0036] When in use, the adjustment rod 5 is driven to move by pulling the traction rope 45 through the rotation of the adjustment disk 42. The specific movement steps can be as follows: when the adjustment disk 42 moves toward the distal end relative to points b and c, points b and c move backward synchronously, and the movable front end 22 rotates toward point a; the movement of points b and c is driven by the rotation of the movable front end 22.

[0037] In some embodiments, a positioning disk 6 is provided on the middle section 71, and three circumferentially distributed guide opening grooves 61 are provided on the positioning disk 6. Three circumferentially distributed arc bosses 44 are provided below the adjusting disk 42. The arc bosses 44 are movably installed in the guide opening grooves 61 after passing through the yielding holes 12, and the connection point for connecting the traction rope 45 is set at the front end of the arc boss 44; through such a setting, the adjustment angle of the adjusting disk 42 can be adjusted in only three directions through the cooperation between the guide opening grooves 61 and the arc bosses 44, which does not avoid the movement direction of the adjusting disk 42 and the traction rope 45 being too large, resulting in breakage and failure; further, the proximal end of the adjusting disk 42 is provided with a pushing knob 41 for conveniently pushing the movement of the adjusting disk 42.

[0038] In some disclosures, the handheld part 1 is provided with a control circuit board 16, and the control circuit board 16 is provided with an electronic gyroscope. By setting the electronic gyroscope, direction calibration and algorithm, it can be ensured that the display direction is always in the vertical direction to avoid getting lost during operation. The handheld part 1 is provided with a membrane button installation slot 15, and a membrane button 17 for operation is installed in the membrane button installation slot 15.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electronic endoscope, comprising an insertion portion and a hand-held portion, characterized in that; The insertion part comprises a support tube, a movable front end and an adjustment rod, wherein an image acquisition unit is arranged in the movable front end, and a plurality of circumferentially distributed open grooves are opened on the proximal side of the movable front end, and a spherical groove is arranged in the open groove; The outer wall of the support tube is provided with a plurality of mounting through holes, the adjusting rod is movably mounted in the mounting through holes, the distal end surface of the adjusting rod is provided with a connecting ball head, and the connecting ball head is movably mounted in the spherical groove. The proximal end of the support tube is connected to the handheld part.

2. An electronic endoscope according to claim 1, characterized in that: The adjustment angle range of the adjustment rod is -15° to 15°.

3. An electronic endoscope according to claim 1, characterized in that: A heat shrink sleeve is arranged on the outer side of the inserting part, and the heat shrink sleeve covers the supporting tube and the movable front end.

4. The electronic endoscope according to claim 1, characterized in that: The adjusting rod is made of stainless steel, nickel-titanium alloy or titanium alloy and has a certain elasticity. The elastic deformation corrects the position deviation caused by the angle change.

5. The electronic endoscope according to claim 1, characterized in that: The handheld part is provided with an adjusting device, and the adjusting device is used to drive the movement of the adjusting rod to adjust the angle of the movable front end.

6. The electronic endoscope according to claim 1, characterized in that: A connecting column is provided near the proximal end of the adjusting rod, a side sliding block is provided on the side of the connecting column, and a mounting positioning column is provided in the hand-held part; The column positioning is composed of a distal section, a middle section and a proximal section in sequence. The middle section is provided with a proximal mounting hole, and the proximal end of the adjusting rod is movably mounted in the proximal mounting hole; the distal section is provided with three circumferentially distributed first through holes, and the side of the first through hole is provided with a side opening groove; the connecting column is movably arranged in the first through hole, and the side slider is movably arranged in the side opening groove.

7. The electronic endoscope according to claim 1, characterized in that: The adjusting device includes an adjusting disk, and the proximal section is a mounting ball. An adjusting module is arranged in the mounting groove. The adjusting module includes an adjusting disk, and a spherical mounting groove is arranged in the center of the adjusting disk. The spherical mounting groove is movably mounted on the proximal section. A plurality of connection points are arranged on the adjusting disk, which is connected to the side slider through a traction wire. The rotation of the adjusting disk can drive the traction wire to pull the adjusting rod to move.

8. An electronic endoscope according to claim 7, characterized in that: The middle section is provided with a positioning plate, the positioning plate is provided with three circumferentially distributed guide opening grooves, and three circumferentially distributed arc bosses are provided below the adjusting plate, and the arc bosses are movably arranged in the guide opening grooves.

9. The electronic endoscope according to claim 1, characterized in that: An electronic gyroscope is arranged in the handheld part.

10. The electronic endoscope according to claim 1, characterized in that: The handheld part is provided with a membrane button.

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