Bendable nerve ventricle endoscope

Abstract

The invention provides a bendable nerve ventricle endoscope, and relates to the technical field of endoscopes. A bendable nerve ventricle endoscope comprises a handle, the handle is provided with an insertion tube, a bent snake bone is arranged at the end, away from the handle, of the insertion tube, a tip is arranged at the end, away from the insertion tube, of the bent snake bone, and a camera is arranged at the tip; the bent snake bone is hollow, two pull wires are oppositely connected to the inner side wall of the front end of the bent snake bone, the pull wires penetrate through the insertion tube and extend into the handle, and the handle is provided with a traction assembly used for pulling the pull wires. By the adoption of the endoscope, the problems that a traditional cranial nerve operation is large in trauma and large in operation difficulty can be solved, the endoscope is simple in structure, convenient to use, small in trauma and capable of being bent easily, lesions which cannot be displayed by a hard endoscope can be observed, the operation can be conducted at the same time, a safer and more reliable technical means is provided for the cranial nerve operation, and the operation cost is reduced. The operation quality is improved, and the operation complications are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, in particular to a flexible neuro-ventricular endoscope. Background Art

[0002] As we all know, traditional intracranial surgery involves making a hole in the brain and using a microscope for observation and auxiliary treatment. However, it is very traumatic, and because the insertion part of the rigid endoscope cannot be bent, it will cause a blind spot for observation and fail to fully display the lesion, which brings certain limitations to the surgery. The endoscope is a medical auxiliary technology that allows doctors to complete tasks that used to require a large incision with only a small incision, and because of the magnifying effect of the endoscope, doctors can operate more accurately. It has been widely used in the examination and treatment of diseases of the gastrointestinal tract, pancreas, bile duct, abdominal cavity, respiratory tract and urinary tract, but has not yet been widely used in cranial nerve surgery. Summary of the invention

[0003] The purpose of the present invention is to provide a flexible neuro-ventricular endoscope, which can solve the problems of large trauma and high difficulty of traditional cranial nerve surgery. The endoscope has a simple structure, is easy to use, has low trauma, can be easily bent, and can observe lesions that cannot be displayed by rigid endoscopes. Surgery can also be performed at the same time, providing a safer and more reliable technical means for cranial nerve surgery, improving the quality of surgery, and reducing surgical complications.

[0004] The technical solution adopted by the present invention is:

[0005] An embodiment of the present application provides a flexible neuro-ventricular endoscope, including a handle, an insertion tube, a curved snake bone at one end of the insertion tube away from the handle, a tip end at one end of the curved snake bone away from the insertion tube, and a camera at the tip end; the curved snake bone is hollow inside, and two pull wires are relatively connected to the inner side walls of the front end of the curved snake bone, the pull wires pass through the insertion tube and extend into the handle, and the handle is provided with a pulling component for pulling the pull wires.

[0006] Furthermore, in some embodiments of the present invention, the curved snake bone includes a head end snake bone, a tail end snake bone and a plurality of connecting snake bones located between the head end snake bone and the tail end snake bone, the pull wire is connected to the head end snake bone, and the plurality of connecting snake bones are rotated and connected in sequence to form a series structure, one end of the series structure is rotationally connected to the head end snake bone, and the other end of the series structure is rotationally connected to the tail end snake bone; the tip is arranged at the head end snake bone, and the insertion tube is connected to the tail end snake bone.

[0007] Furthermore, in some embodiments of the present invention, a rotating disk is provided at one end of any connecting snake bone, and a rotating slot is provided at the other end of any connecting snake bone, and the rotating disk of one connecting snake bone rotates and is embedded in the rotating slot of another adjacent connecting snake bone.

[0008] Furthermore, in some embodiments of the present invention, a protective sleeve is provided on the outside of the curved snake bone.

[0009] Furthermore, in some embodiments of the present invention, the tip head is provided with a tip outlet, the tip head is provided with an operating tube connected to the tip outlet, the operating tube passes through the insertion tube and extends into the handle; the handle is provided with an instrument channel opening connected to the operating tube.

[0010] Furthermore, in some embodiments of the present invention, the handle is provided with a suction control valve, and the suction control valve is connected to the operating tube through a connecting tube.

[0011] Furthermore, in some embodiments of the present invention, the handle is provided with a liquid injection control valve, and the liquid injection control valve is connected to the operating pipe through a connecting pipe.

[0012] Furthermore, in some embodiments of the present invention, the pulling assembly includes a driving turntable rotatably disposed in the handle, and ends of the two pulling wires away from the curved snake bone are both wound and connected to the driving turntable in opposite winding directions.

[0013] Furthermore, in some embodiments of the present invention, a friction locking plate is fixedly provided inside the handle, and a driving shaft is rotatably passed through the friction locking plate. One end of the driving shaft is connected to the driving turntable, and the other end of the driving shaft passes through the handle and is located outside the handle; the driving shaft is provided with a wrench, and the wrench is located outside the handle.

[0014] Furthermore, in some embodiments of the present invention, the wrench sliding sleeve is arranged on the driving shaft, and the driving shaft has a screw hole at one end located outside the handle; it also includes a locking knob, the locking knob has a screw rod, the screw rod is embedded in the screw hole and is threadedly connected to the driving shaft.

[0015] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0016] The embodiment of the present invention provides a flexible neuro-cerebroventricular endoscope, including a handle, an insertion tube, a curved snake bone at one end of the insertion tube away from the handle, a tip end at one end of the curved snake bone away from the insertion tube, and a camera at the tip end; the curved snake bone is hollow inside, and two pull wires are relatively connected to the inner side wall of the front end of the curved snake bone, and the pull wires pass through the insertion tube and extend into the handle, and the handle is provided with a pulling assembly for pulling the pull wires. It can solve the problems of traditional cranial nerve surgery with large trauma and high surgical difficulty. The endoscope has a simple structure, is easy to use, has low trauma, can be easily bent, and can observe lesions that cannot be displayed by rigid endoscopes, and can perform surgery at the same time, providing a safer and more reliable technical means for cranial nerve surgery, improving the quality of surgery, and reducing surgical complications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 Schematic diagram of the structure of the endoscope provided in the embodiment of the present invention Figure 1 ;

[0019] Figure 2 Schematic diagram of the structure of the endoscope provided in the embodiment of the present invention Figure 2 ;

[0020] Figure 3 A front view of the interior of a handle provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of the tip and the curved snake bone position provided in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure after removing the protective sleeve;

[0023] Figure 6 A schematic diagram of the structure of the tip position provided by an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the structure of a curved snake bone provided by an embodiment of the present invention;

[0025] Figure 8 An exploded view of a curved snake bone provided by an embodiment of the present invention;

[0026] Fig. 9 A schematic diagram of the structure of a single connecting snake bone provided by an embodiment of the present invention;

[0027] Fig.10 A schematic diagram of the structure of the pulling assembly provided in an embodiment of the present invention Figure 1 ;

[0028] Fig.11 A schematic diagram of the structure of the pulling assembly provided in an embodiment of the present invention Figure 2 ;

[0029] Fig.12 An exploded view of the drive shaft and the locking knob provided in an embodiment of the present invention.

[0030] Icons: 1-handle; 2-insertion tube; 3-tip; 4-camera; 5-pull wire; 6-head snake bone; 7-tail snake bone; 8-connecting snake bone; 9-protective sleeve; 10-rotating disk; 11-rotating slot; 12-tip outlet; 13-operating tube; 14-instrument channel port; 15-suction control valve; 16-injection control valve; 17-connecting tube; 18-drive turntable; 19-friction locking plate; 20-drive shaft; 21-wrench; 22-screw hole; 23-locking knob; 24-screw; 25-spring; 26-control button; 27-wire. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below in conjunction with the drawings in the embodiments of the present application.

[0032] Example

[0033] Please refer to Figure 1-Figure 12 The present embodiment provides a flexible neuro-cerebroventricular endoscope, comprising a handle 1, an insertion tube 2, a curved snake bone at one end of the insertion tube 2 away from the handle 1, and a protective sleeve 9 is provided on the outer surface of the curved snake bone. A tip 3 is provided at one end of the curved snake bone away from the insertion tube 2, and a camera 4 is provided at the tip 3; the curved snake bone is hollow inside, and two pull wires 5 are connected to the inner side wall of the front end of the curved snake bone, and the pull wires 5 pass through the insertion tube 2 and extend into the handle 1, and the handle 1 is provided with a pulling component for pulling the pull wires 5.

[0034] The handle 1 of this embodiment is used for medical staff to hold when in use. The handle 1 conforms to the ergonomic design, is non-slip, and is convenient for medical staff to hold. The insertion tube 2 is composed of a heat-treated metal that can be bent at any angle. It has a certain hardness and can be adjusted in advance to the required angle, which is convenient for the user to reach any difficult position. The bending snake bone of this embodiment can be bent by pulling the two pull wires 5 respectively by the pulling assembly. By pulling the first section of the bending snake bone respectively by the two pull wires 5, a small range of two-way bending can be achieved, and the two-way 90°; the ultra-small bending radius, the bending radius can be set to 13 mm, and multiple positions can be reached in a small space; the design of the bendable structure of the bending snake bone can realize the two-way turning of the front bending snake bone, which is convenient for the user to better observe and reach the lesion site, and transmit the image to the back end in real time. The outside of the bending snake bone is covered with a protective sleeve 9 made of TPU material to achieve sealing and lubrication.

[0035] The tip 3 of the present embodiment is made of transparent material, and an LED cold light source that can illuminate can be installed in the tip 3, which is convenient for lighting by the LED cold light source when in use. A camera 4 that can transmit images in real time is installed in the tip 3, and the camera 4 and the LED cold light source can be connected by a wire 27, and the wire 27 passes through the insertion tube 2 and the handle 1 and is connected to a display device such as a computer, so that images can be transmitted for medical staff to view. The handle 1 of the present embodiment can be provided with a corresponding control button 26, and the control button 26 is electrically connected to the camera 4. Pressing the control button 26 can realize functions such as freezing, taking pictures, and recording. The tip 3 of the present embodiment adopts a bullet head appearance design, which is overall without edges and corners and is not easy to damage brain tissue. It has a bullet head design that breaks through downwards, and is easier to enter the sheath and other positions, which is convenient for medical staff to perform surgery.

[0036] The flexible neuro-ventricular endoscope provided in the present application is designed for neurosurgery. When in use, the front end of the endoscope is inserted into the patient's skull through a very small incision, and the bending snake bone is pulled by two pull wires 5 to achieve the bending of the bending snake bone, and the patient's part is surgically treated by observing the video information transmitted by the camera 4. The flexible neuro-ventricular endoscope has a simple structure, is easy to use, has little trauma, can be easily bent, can observe the condition of the affected part in all directions, provides a more complete image, and can perform surgery at the same time. It has multiple functions such as lighting, surgery, flushing and suction, and provides a safer and more reliable technical means for neurosurgery, improves the quality of surgery, and reduces surgical complications.

[0037] like Figure 5-Figure 9 As shown, in some embodiments, the curved snake bone includes a head end snake bone 6, a tail end snake bone 7 and a plurality of connecting snake bones 8 located between the head end snake bone 6 and the tail end snake bone 7, the pull wire 5 is connected to the head end snake bone 6, and the plurality of connecting snake bones 8 are rotated and connected in sequence to form a series structure, one end of the series structure is rotationally connected to the head end snake bone 6, and the other end of the series structure is rotationally connected to the tail end snake bone 7; the tip 3 is arranged on the head end snake bone 6, and the insertion tube 2 is connected to the tail end snake bone 7.

[0038] A rotating disk 10 is provided at one end of any connecting snake bone 8, and a rotating slot 11 is provided at the other end of any connecting snake bone 8. The rotating disk 10 of one connecting snake bone 8 is rotated and embedded in the rotating slot 11 of another connecting snake bone 8 adjacent thereto. In this embodiment, the head end snake bone 6 is provided with a rotating slot 11, and the tail end snake bone 7 is provided with a rotating disk 10. One end of the series structure is rotated in the rotating slot 11 of the head end snake bone 6 through the rotating disk 10, and the rotating disk 10 of the tail end snake bone 7 is rotated in the rotating slot 11 at the other end of the series structure, so that the angles between the head end snake bone 6 and the connecting snake bone 8, and between the tail end snake bone 7 and the connecting snake bone 8 can be bent and adjusted.

[0039] The present invention provides a head end snake bone 6, a tail end snake bone 7 and a plurality of connecting snake bones 8, and realizes a rotational connection by cooperating with a rotating disk 10 and a rotating slot 11. This makes it easy to pull the bending snake bone by the pull wire 5 to adjust the bending angle, and the operation is convenient.

[0040] like Figure 1-Figure 3 , Figure 6 As shown, in some embodiments, the tip 3 is provided with a tip outlet 12, the tip 3 is provided with an operation tube 13 connected with the tip outlet 12, the operation tube 13 is sealed with the tip outlet 12, the operation tube 13 passes through the insertion tube 2 and extends into the handle 1; the handle 1 is provided with an instrument channel port 14 connected with the operation tube 13. By providing the tip outlet 12 and the instrument channel port 14, the present invention can insert instruments for diagnosing and treating patients through the instrument channel port 14 when in use, and after the instruments are inserted into the instrument channel port 14, they can reach the position of the tip outlet 12 through the operation tube 13, thereby facilitating reaching the surgical site of the patient.

[0041] like Figure 1-Figure 3 As shown, in some embodiments, the handle 1 is provided with a suction control valve 15, which is connected to the operating tube 13 through a connecting tube 17. The handle 1 is provided with a liquid injection control valve 16, which is connected to the operating tube 13 through a connecting tube 17.

[0042] The present invention is provided with a suction control valve 15, and when in use, the suction control valve 15 can be used to connect a suction machine. At this time, the instrument channel port 14 is closed, the suction control valve 15 is opened, and after the suction machine is turned on, suction can be performed from the front outlet 12 to the rear, and liquids and fine solids at multiple positions can be sucked out by coordinating with the bending of the bending snake bone.

[0043] The present invention is provided with an injection control valve 16. When in use, the pressurized liquid to be injected can be connected through the injection control valve 16. At this time, the instrument channel port 14 is closed, and the injection control valve 16 is opened. The pressurized liquid can be injected into the patient's affected area through the injection control valve 16, the operating tube 13 and the front outlet 12 in sequence.

[0044] like Figure 1-Figure 3 , Figure 10-12As shown, in some embodiments, the pulling assembly includes a driving turntable 18 rotatably disposed in the handle 1, and the ends of the two pull wires 5 away from the curved snake bone are both wound and connected to the driving turntable 18 in opposite directions. A friction locking plate 19 is fixedly provided in the handle 1, and a driving shaft 20 is rotatably passed through the friction locking plate 19. The friction locking plate 19 is used to lock the driving turntable 18 after the driving turntable 18 tightly abuts against the friction locking plate 19. One end of the driving shaft 20 is connected to the driving turntable 18, and the other end of the driving shaft 20 passes through the handle 1 and is located outside the handle 1; the driving shaft 20 is provided with a wrench 21, and the wrench 21 is located outside the handle 1. The wrench 21 is slidably sleeved on the driving shaft 20. The wrench 21 of this embodiment is used to drive the driving shaft 20 and the driving turntable 18 to rotate simultaneously when rotating, such as Fig.12 As shown, the outer wall of the driving shaft 20 is provided with a limit groove, and the wrench 21 is slidably sleeved in the limit groove of the driving shaft 20. The wrench 21 can only slide along the axial direction of the driving shaft 20 and cannot rotate relative to the driving shaft 20. The driving shaft 20 is provided with a screw hole 22 at one end outside the handle 1; it also includes a locking knob 23, and the locking knob 23 is provided with a screw rod 24, which is embedded in the screw hole 22 and is threadedly connected to the driving shaft 20.

[0045] The driving turntable 18 of this embodiment is used to pull the pull wire 5 when rotating, wherein when the driving turntable 18 rotates forward, the driving turntable 18 pulls the first pull wire 5 so that the first pull wire 5 pulls the bending snake bone to rotate and adjust the angle, and at this time the second pull wire 5 is in a relaxed state. When the driving turntable 18 rotates reversely, the driving turntable 18 pulls the second pull wire 5 so that the second pull wire 5 pulls the bending snake bone to rotate and adjust the angle, and at this time the first pull wire 5 is in a relaxed state. This makes it easy to adjust the bending angle of the bending snake bone in two directions.

[0046] By setting the driving turntable 18 and the locking knob 23, when the bending angle of the bending snake bone needs to be adjusted, the locking knob 23 is loosened. At this time, the medical staff holds the handle 1 and rotates the wrench 21 with their fingers. The wrench 21 drives the driving shaft 20 and the driving turntable 18 to rotate at the same time. In this way, the pulling wire 5 can be pulled by the rotating driving turntable 18 to achieve the bending angle adjustment of the bending snake bone.

[0047] After the adjustment, the medical staff fixes the wrench 21 with their fingers and tightens the locking knob 23 with their fingers. Since the screw 24 is threadedly connected to the driving shaft 20, the rotating screw 24 can drive the driving shaft 20 to move toward the locking knob 23. The moving driving shaft 20 drives the driving turntable 18 to move toward the friction locking plate 19 and tightly abuts against the side wall of the friction locking plate 19. This facilitates friction locking of the driving turntable 18, and can keep the bending snake bone at the adjusted bending angle without moving. The medical staff does not need to continuously fix the wrench 21, saving the medical staff's physical strength.

[0048] Alternatively, if Figure 10-12 As shown, the driving shaft 20 of this embodiment is sleeved with a spring 25, and the spring 25 is located in the handle 1. One end of the spring 25 abuts against the driving turntable 18, and the other end of the spring 25 abuts against the inner wall of the handle 1. In this way, after loosening the locking knob 23, the spring 25 can apply elastic force to the driving turntable 18 to keep the driving turntable 18 away from the friction locking plate 19, so as to facilitate the subsequent rotation of the wrench 21 for adjustment.

[0049] In addition, unless otherwise expressly specified or limited, in the embodiments of the present application, if the terms "installation" and "connection" appear, they should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. If the terms "upper", "lower", "left", "right", "inner", "outer", "side" and other directional terms appear, they are only with reference to the direction of the accompanying drawings or the orientation in which the product is usually placed when in use. They are only for the purpose of clearly describing the present application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as a limitation on the present application. The terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance; "multiple" means at least two. In the embodiments of the present application, the limitations of relative positional relationships such as parallel, vertical, and aligned are all for the current technological level, rather than absolutely strict limitations. A small amount of deviation is allowed, and approximately parallel, approximately vertical, approximately aligned, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0050] The above are only some embodiments and implementation methods of the present application. The protection scope of the present application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of the present application. Any changes or substitutions that can be easily thought of by any technician familiar with the field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A flexible neuro-ventricular endoscope, characterized in that: It includes a handle, the handle is provided with an insertion tube, the end of the insertion tube away from the handle is provided with a curved snake bone, the end of the curved snake bone away from the insertion tube is provided with a tip head, and the tip head is provided with a camera; the curved snake bone is hollow inside, and the inner side walls of the front end of the curved snake bone are relatively connected to two pull wires, the pull wires pass through the insertion tube and extend into the handle, and the handle is provided with a pulling component for pulling the pull wires.

2. The flexible neuro-ventricular endoscope according to claim 1, characterized in that: The curved snake bone includes a head end snake bone, a tail end snake bone and a plurality of connecting snake bones located between the head end snake bone and the tail end snake bone, the pull wire is connected to the head end snake bone, and the plurality of connecting snake bones are rotated and connected in sequence to form a series structure, one end of the series structure is rotationally connected to the head end snake bone, and the other end of the series structure is rotationally connected to the tail end snake bone; the tip head is arranged at the head end snake bone, and the insertion tube is connected to the tail end snake bone.

3. The flexible neuro-ventricular endoscope according to claim 2, characterized in that: A rotating disk is provided at one end of any of the connecting snake bones, and a rotating slot is provided at the other end of any of the connecting snake bones. The rotating disk of one of the connecting snake bones is rotatably embedded in the rotating slot of another adjacent connecting snake bone.

4. The flexible neuro-ventricular endoscope according to claim 1, characterized in that: The outer part of the curved snake bone is covered with a protective sleeve.

5. The flexible neuro-ventricular endoscope according to claim 1, characterized in that: The tip head is provided with a tip outlet, the tip head is provided with an operation tube communicated with the tip outlet, the operation tube passes through the insertion tube and extends into the handle; the handle is provided with an instrument channel port communicated with the operation tube.

6. The flexible neuro-ventricular endoscope according to claim 5, characterized in that: The handle is provided with a suction control valve, and the suction control valve is communicated with the operation pipe through a connecting pipe.

7. The flexible neuro-ventricular endoscope according to claim 5, characterized in that: The handle is provided with a liquid injection control valve, and the liquid injection control valve is connected with the operating pipe through a connecting pipe.

8. The flexible neuro-ventricular endoscope according to claim 1, characterized in that: The pulling assembly comprises a driving turntable rotatably arranged in the handle, and ends of the two pulling wires away from the curved snake bone are both wound and connected with the driving turntable in opposite winding directions.

9. The flexible neuro-ventricular endoscope according to claim 8, characterized in that: A friction locking plate is fixedly provided in the handle, and a driving shaft is rotatably passed through the friction locking plate. One end of the driving shaft is connected to the driving turntable, and the other end of the driving shaft passes through the handle and is located outside the handle; the driving shaft is provided with a wrench, and the wrench is located outside the handle.

10. The flexible neuro-ventricular endoscope according to claim 9, characterized in that: The wrench is slidably sleeved on the driving shaft, and a screw hole is provided at one end of the driving shaft located outside the handle; it also includes a locking knob, and the locking knob is provided with a screw rod, and the screw rod is embedded in the screw hole and threadedly connected to the driving shaft.

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