Hepatobiliary surgery endoscope

Abstract

The endoscope comprises an operating part, a connecting part and an inserting part, the inserting part is connected with the operating part through the connecting part, the inserting part comprises a catheter body, an incision knife channel and a guide wire channel, the incision knife channel and the guide wire channel are arranged along the catheter body, an incision knife and a guide wire are installed in the incision knife channel and the guide wire channel respectively, and a sliding block is installed on the operating part. The sliding block is connected with the incision knife, and a control part used for controlling pulling of the guide wire is arranged on the operation part. The insertion part enters the body of a patient along with an endoscope, and the guide wire can be directly operated to pull through the control part arranged on the operation part, so that the direction of the front end of the insertion part is changed, and accidental injuries are reduced.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to an endoscope for hepatobiliary surgery. Background Art

[0002] Endoscopic surgical technique refers to sending an endoscope through a normal body passage or an artificially established passage to or near the lesion in the body, and performing operations such as observing, hemostasis, resection, stone removal, drainage or channel reconstruction on the local lesion under direct vision of the endoscope, under X-ray fluoroscopy or with the assistance of B-ultrasound, so as to achieve the purpose of clear diagnosis, cure of the disease or relief of symptoms; a cutting knife can be inserted through the channel under the endoscope to perform endoscopic surgery on the patient. However, at present, it is actually quite difficult to change the direction after the cutting knife is inserted clinically. It is mainly reflected that it can only change with the change of the direction of the endoscope. However, if the angle of the endoscope is changed greatly after the cutting knife enters, it will actually damage the surrounding tissues, thus causing harm. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide an endoscope for hepatobiliary surgery that facilitates the operation of a cutting knife in view of the above-mentioned deficiencies in the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solution: An endoscope for hepatobiliary surgery, comprising an operating part, a connecting part and an insertion part. The insertion part is connected to the operating part through the connecting part. The insertion part includes a catheter body, a cutting knife channel and a guide wire channel arranged along the catheter body. A cutting knife and a guide wire are respectively installed in the cutting knife channel and the guide wire channel. A slider is installed on the operating part, and the slider is connected to the cutting knife. A control part for controlling the pulling of the guide wire is provided on the operating part.

[0005] Further, the operating part includes a handle and the control part arranged on the handle. The control part includes a first knob that can rotate and is installed on the handle and a first locking part for locking the first knob. The guide wire is connected to the first knob.

[0006] Further, the number of guide wires is 2, and the number of the first knobs and their locking parts is 2.

[0007] Further, a second knob and a second locking part for locking the second knob are further provided on the control part. The number of guide wires is 4, and the 4 guide wires are connected to any one of the two first knobs and the two knobs.

[0008] Further, a first installation cavity and a second installation cavity are provided inside the connection part. A first spring and a second spring are arranged inside the first installation cavity and the second installation cavity. The first spring is wound around the cutting knife, and the second spring is wound around the guide wire. Two ends of the first spring are respectively fixed to the cutting knife and the inner wall of the first installation cavity, and two ends of the second spring are respectively fixed to the guide wire and the inner wall of the second installation cavity.

[0009] Compared with the prior art, the present invention has the following beneficial effects: By entering the insertion part into the patient's body along with the endoscope, the control part provided on the operation part can be used to directly operate the guide wire to pull, so as to change the direction of the front end of the insertion part, thereby reducing accidental injury.

[0010] Other advantages, objectives and features of the present invention will be partially reflected by the following description, and will also be understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of a hepatobiliary surgery endoscope.

[0012] Figure 2 It is a schematic structural diagram of the operation part.

[0013] Figure 3 It is Figure 2 A partial enlarged schematic diagram at position A.

[0014] Figure 4 It is Figure 1 A partial enlarged schematic diagram at position B.

[0015] Figure 5 It is a schematic diagram of the front end of the insertion part 3. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to make the technical means, creative features, achieved objectives and functions of the present invention clearer and easier to understand, the present invention will be further described below in conjunction with the drawings and specific embodiments:

[0017] The present invention provides a hepatobiliary endoscope, which includes an operating part 1, a connecting part 2 and an insertion part 3. The insertion part 3 is connected to the operating part 1 through the connecting part 2. The insertion part 3 is configured to enter the patient's body along the inner channel of the endoscope. The operating part 1 is for medical staff to operate. The insertion part 3 includes a catheter body, a cutter channel 4 and a guide wire channel arranged along the catheter body. A cutter 5 and a guide wire 6 are respectively installed in the cutter channel 4 and the guide wire channel. A slider 8 is installed on the operating part, and the slider 8 is connected to the cutter 5. A control part for controlling the pulling of the guide wire 6 is provided on the operating part 1. The medical staff operates the operating part 1 to change the direction of the front end of the guide wire 6 entering the body, thereby changing the direction of the front part of the cutter 5 extending out of the front end of the insertion part 3. The insertion part 3 further has a camera module 7. The guide wire 6 is a traction wire of the prior art, and the operating part has an endoscope body.

[0018] The operating part 1 includes a handle and the control part provided on the handle. The control part includes a first knob 9 that can rotate and is installed on the handle, and a first locking part 10 for locking the first knob 9. The guide wire 6 is connected to the first knob 9. By rotating the first knob 9, the guide wire 6 is driven to be pulled. The first knob 9 includes a first rotating wheel and a first shaft rod 17 connecting the first rotating wheel. The first shaft rod 17 is movably installed on the handle and can rotate. A first depression 15 is provided on the outer wall of the first shaft rod 17 for fixing the guide wire 16. The guide wire channel passes through the connecting part 2 and the handle and finally winds around the first depression 15. The number of the guide wires 6 is 2. The number of the first knobs 9 and their locking parts 10 is 2. The two guide wires 6 are respectively wound around the two first depressions 15 arranged on both sides of the handle relatively. The first locking part 10 includes a first screw 13. The first knob 9 is provided with a first spiral through hole corresponding to the outer wall of the handle. The first screw 13 is screwed into the first spiral through hole and can pass through the first spiral channel to abut against the outer wall of the handle, thereby fixing the first knob 9.

[0019] The control unit is further provided with a second knob 12 and a second locking portion 11 for locking the second knob. The number of guide wires 6 is 4, and the 4 guide wires 6 are connected to any one of the two first knobs 9 and the two second knobs 12. A second shaft rod 21 extends from the middle of the second knob 12 towards the handle. The first knob 9 and its first shaft rod 17 have through holes. The second shaft rod 21 passes through the through holes and is connected to the inner ring of a bearing 14 arranged inside the handle. The handle has an installation cavity for placing the bearing 14. The bearing 14 is located inside the installation cavity. The outer ring of the bearing 14 is connected to the first shaft rod 17. There are balls 16 between the outer ring and the inner ring. The front end portion of the second shaft rod 21 passes through the bearing 14 and is located inside the handle. A second recess 19 is provided on the front end portion of the second shaft rod 21 for installing the guide wire 6. The first knob 9 is located between the second knob 12 and the handle. A second spiral channel passes through the second knob 12 and its second shaft rod 21. The second locking portion 11 has a second screw rod 18 that is screwed into the second spiral channel and can pass through the second spiral channel to abut against the inner wall of the inner cavity 20 of the handle.

[0020] The connecting portion 2 is provided with a first installation cavity 22 and a second installation cavity 25 inside. The first installation cavity 22 and the second installation cavity 25 are internally provided with a first spring 23 and a second spring 24. The first spring 23 is wound around the cutting knife 5. The second spring 24 is wound around the guide wire 6. Two ends of the first spring 23 are respectively fixed to the cutting knife 5 and the inner wall of the first installation cavity 22. Two ends of the second spring 24 are respectively fixed to the guide wire 6 and the inner wall of the second installation cavity 25. The first spring 23 and the second spring 24 enable the cutting knife 5 and the guide wire 6 to have the ability of resilience and tension. The cutting knife 5 includes a knife head portion and a knife tube portion, and the knife head portion includes I-shaped, T-shaped, O-shaped, IT-shaped, etc.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A hepatobiliary surgical endoscope, characterized in that: The invention comprises an operating part (1), a connecting part (2) and an inserting part (3), wherein the inserting part (3) is connected to the operating part (1) via the connecting part (2), the inserting part (3) comprises a catheter body and a cutting knife channel (4) and a guide wire channel arranged along the catheter body, the cutting knife channel (4) and the guide wire channel are respectively installed with a cutting knife (5) and a guide wire (6), the operating part is installed with a slider (8), the slider (8) is connected to the cutting knife (5), and the operating part (1) is provided with a control part for controlling the pulling of the guide wire (6).

2. A hepatobiliary surgical endoscope according to claim 1, characterized in that: The operating part (1) comprises a handle and the control part arranged on the handle, the control part comprises a first knob (9) rotatably mounted on the handle and a first locking part (10) for locking the first knob (9), and the guide wire (6) is connected to the first knob (9).

3. A hepatobiliary surgical endoscope according to claim 2, characterized in that: The number of the guide wires (6) is 2, and the number of the first knobs (9) and the locking parts (10) thereof is 2.

4. A hepatobiliary surgical endoscope according to claim 2, characterized in that: The control portion is also provided with a second knob (12) and a second locking portion (11) for locking the second knob. The number of the guide wires (6) is 4, and the 4 guide wires (6) are connected to any one of the two first knobs (9) and the two knobs (12).

5. The hepatobiliary surgical endoscope according to claim 1, characterized in that: The connecting portion (2) is provided with a first mounting cavity (22) and a second mounting cavity (25), wherein the first mounting cavity (22) and the second mounting cavity (25) contain a first spring (23) and a second spring (24), wherein the first spring (23) is wound around the cutting knife (5), and the second spring (24) is wound around the guide wire (6), and the two ends of the first spring (23) are respectively fixed to the cutting knife (5) and the inner wall of the first mounting cavity (22), and the two ends of the second spring (24) are respectively fixed to the guide wire (6) and the inner wall of the second mounting cavity (25).

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