Endoscope for spinal surgery

Abstract

The invention discloses an endoscope for spinal surgery. According to the technical scheme, the endoscope is characterized by comprising a main body, the accessory connecting part is arranged on the main body and is used for connecting a functional module; one end of the sheathing canal is fixedly connected to the main body, the other end of the sheathing canal extends in the direction far away from the main body, and the end, far away from the main body, of the sheathing canal is arranged as a surgical end and extends to a surgical site; the retraction tube is arranged outside the sheath tube in a sleeving manner; the retraction assembly is arranged on the retraction tube, and the retraction assembly is used for retracting spinal nerves at the surgical end of the sheathing canal; through the arrangement of the retracting assembly, a doctor can retract spinal nerves only by operating the endoscope, so that the operation convenience is improved, and an operation can be conveniently carried out in a narrow area.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spinal surgery instruments, and more particularly, it relates to an endoscope for spinal surgery. BACKGROUND

[0002] Spinal endoscopy technology is one of the most potential minimally invasive spinal surgery technologies today, and is widely used in clinical practice. According to the anatomical structure and physiological characteristics of the spine, it can accurately treat common nerve root compression diseases.

[0003] In the process of spinal surgery, in order to expand the operating field of the spinal endoscope and avoid injury to the spinal nerve, some auxiliary independent retractors are used for cooperative operation. The retractor can retract the spinal nerve and expand the operating range of the endoscope in the surgical site. However, the existing retractor is not convenient to use. The doctor needs to operate the endoscope on one side and the retractor on the other side, which is too high a requirement for the doctor's operation. Moreover, the retractor is difficult to adjust in a small area, which limits the efficiency of the operation and has certain risks. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide an endoscope for spinal surgery, which can retract the spinal nerve by operating the endoscope through the setting of the retraction assembly, thereby improving the convenience of operation and facilitating the operation in a small area.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an endoscope for spinal surgery, comprising a main body;

[0006] An accessory connecting part is arranged on the main body and used for connecting a functional module;

[0007] A sheath tube is fixedly connected to one end of the main body and extends away from the main body, and the end of the sheath tube away from the main body is arranged as a surgical end and extends to a surgical site;

[0008] A retraction tube is sleeved outside the sheath tube;

[0009] And a retraction assembly is arranged on the retraction tube, and the retraction assembly is used for retracting the spinal nerve at the surgical end of the sheath tube.

[0010] The present application is further provided that: the retraction tube is provided with a clearance slot penetrating the retraction tube along the length direction of the sheath tube, and the clearance slot penetrates the retraction tube towards the sheath tube;

[0011] The retraction assembly comprises an extension rod arranged in the clearance slot, and one end of the extension rod near the surgical end of the sheath tube extends out of the clearance slot.

[0012] A toggle lever is fixedly connected to one end of the extension rod close to the sheath operation end, and is arranged as an elastic toggle lever;

[0013] A control line is connected to one end of the toggle lever close to the sheath operation end, and is arranged to pass through the extension rod and extend to a position close to the main body of the retractor tube; and pulling of the control line can control the elastic deformation of the one end of the toggle lever close to the sheath operation end in a direction away from the sheath.

[0014] The extension rod is further provided with a receiving groove penetrating the extension rod along the length direction of the extension rod on the side away from the sheath;

[0015] The toggle lever is further provided with a connecting groove penetrating the toggle lever in the direction of the extension rod on the side away from the sheath, and the connecting groove is in communication with the receiving groove;

[0016] The control line is arranged in the receiving groove and the connecting groove.

[0017] The connecting groove is further provided with a blocking block on the side away from the sheath at both sides of the connecting groove.

[0018] The control assembly is further provided with a control assembly arranged at one end of the retractor tube close to the main body;

[0019] The control assembly is used for winding and unwinding the control line.

[0020] The receiving groove is further provided with a control groove penetrating the retractor tube in the direction away from the sheath on the side close to the main body;

[0021] Two support plates are arranged on both sides of the control groove and are fixedly connected to the retractor tube;

[0022] The control assembly comprises a winding wheel rotatably connected to the two support plates, and the winding wheel is connected to one end of the control line away from the toggle lever to realize winding and unwinding of the control line through rotation of the winding wheel.

[0023] The axis of the winding wheel is perpendicular to the axis of the sheath;

[0024] The winding wheel is provided with an annular winding groove, and the control line is wound in the winding groove.

[0025] The control assembly further comprises a rack arranged in the winding groove and located at a position close to the main body of the winding groove, and the rack is fixedly connected to the extension rod and can slide in the winding groove along the axis direction of the sheath;

[0026] The outer side of the take-up reel is provided with a number of meshing teeth that surround the take-up reel and mesh with the rack.

[0027] The invention is further configured such that: the retractor is rotatably connected to the sheath, and a fixing bolt is threadedly connected to the side of the retractor near the main body, and the end of the fixing bolt can be pressed against the sheath.

[0028] The present invention is further configured such that: two water inlet valves are fixedly connected to both sides of the main body, and the two water inlet valves are connected to the sheath through the main body.

[0029] In summary, the present invention has the following advantages over the prior art: By setting up the retraction component, the doctor only needs to operate the endoscope to retract the spinal nerve, which improves the convenience of operation and facilitates surgery in a narrow area. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0031] Figure 2 for Figure 1 Enlarged schematic diagram of part A;

[0032] Figure 3 for Figure 1 Enlarged schematic diagram of part B;

[0033] Figure 4 for Figure 2 Enlarged schematic diagram of part C;

[0034] Figure 5 for Figure 3 Enlarged schematic diagram of part D;

[0035] Figure 6 for Figure 3 Enlarged schematic diagram of part E.

[0036] In the diagram: 1. Main body; 11. Accessory connection part; 12. Water inlet valve; 2. Sheath tube; 3. Retraction tube; 31. Clearance groove; 32. Control groove; 4. Retraction assembly; 41. Extension rod; 411. Receiving groove; 412. Rack; 42. Actuating rod; 421. Connecting groove; 422. Blocking block; 43. Control line; 5. Control assembly; 51. Support plate; 52. Rewinding wheel; 521. Rewinding groove; 6. Fixing bolt. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0038] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0039] Example: An endoscope for spinal surgery, see attached document. Figure 1 - Appendix Figure 6 The device includes a main body 1, an accessory connecting part 11, a sheath 2, a retraction tube 3, and a retraction component 4. The accessory connecting part 11 is disposed on the main body 1 and is used to connect functional modules. One end of the sheath 2 is fixedly connected to the main body 1, and the other end extends away from the main body 1. The end of the sheath 2 away from the main body 1 is set as the surgical end and extends to the surgical site. The retraction tube 3 is sleeved on the sheath 2. The retraction component 4 is disposed on the retraction tube 3 and is used to retract the spinal nerve at the surgical end of the sheath 2.

[0040] With the retraction component 4, doctors can retract the spinal nerves simply by operating the endoscope, which improves the convenience of the operation and makes it easier to perform surgery in a narrow area.

[0041] Specifically, the retraction tube 3 is provided with a relief groove 31 that runs through the retraction tube 3 along the length of the sheath tube 2, and the relief groove 31 runs through the retraction tube 3 in a direction close to the sheath tube 2; the retraction assembly 4 includes an extension rod 41, a lever 42, and a control line 43. The extension rod 41 is disposed in the relief groove 31, and one end of the extension rod 41 near the surgical end of the sheath tube 2 extends out of the relief groove 31; the lever 42 is fixedly connected to the end of the extension rod 41 near the surgical end of the sheath tube 2 and is configured as an elastic lever 42; one end of the control line 43 is connected to the end of the lever 42 near the surgical end of the sheath tube 2, and the other end passes through the extension rod 41 and extends to a position of the retraction tube 3 near the main body 1. The pulling of the control line 43 can control the end of the lever 42 near the surgical end of the sheath tube 2 to undergo elastic deformation in a direction away from the sheath tube 2.

[0042] By setting the control line 43, when the control line 43 is pulled in a direction away from the surgical end of the sheath 2, the end of the lever 42 near the surgical end can be pulled to undergo elastic deformation in a direction away from the sheath 2, thereby achieving traction on the spinal nerve.

[0043] Specifically, the extension rod 41 is provided with a receiving groove 411 that runs through the extension rod 41 along its length on the side away from the sheath tube 2; the actuating rod 42 is provided with a connecting groove 421 that runs through the actuating rod 42 toward the extension rod 41 on the side away from the sheath tube 2, and the connecting groove 421 is connected to the receiving groove 411; the control line 43 is provided in the receiving groove 411 and the connecting groove 421.

[0044] Specifically, on both sides of the connecting groove 421, at positions away from the sheath tube 2, there are blocking blocks 422 that prevent the control line 43 from detaching from the connecting groove 421.

[0045] By setting the blocking block 422, it is possible to prevent the control line 43 from coming off the connecting groove 421 when the control line 43 is pulled.

[0046] Specifically, this embodiment also includes a control component 5, which is disposed at one end of the drawing tube 3 near the main body 1; the control component 5 is used to perform winding and unwinding operations on the control line 43.

[0047] Specifically, the receiving groove 411 is provided with a control groove 32 at one end near the main body 1, which extends through the drawing tube 3 in a direction away from the sheath tube 2; two support plates 51 are fixedly connected to the drawing tube 3 on both sides of the control groove 32; the control component 5 includes a winding wheel 52 rotatably connected to the two support plates 51, and the winding wheel 52 is connected to the end of the control line 43 away from the actuating lever 42 so that the winding and unwinding of the control line 43 can be realized by the rotation of the winding wheel 52.

[0048] By setting up the take-up reel 52, when the take-up reel 52 is rotated, the control line 43 can be wound onto the take-up reel 52, and the control line 43 can pull and deform the lever 42. When the rotation of the take-up reel 52 is released, the lever 42 returns to its original shape and position under the elastic force of the lever 42 itself, and also pulls the control line 43 to unwind on the take-up reel 52.

[0049] Specifically, the axis of the take-up reel 52 is perpendicular to the axis of the sheath 2; the take-up reel 52 is provided with an annular take-up groove 521, and the control line 43 is wound in the take-up groove 521.

[0050] Specifically, the control component 5 also includes a rack 412, which is disposed in the take-up groove 521 and located near the main body 1. The rack 412 is fixedly connected to the extension rod 41 and can slide along the axis of the sheath tube 2 in the take-up groove 521. The take-up wheel 52 has a plurality of meshing teeth arranged around it, which mesh with the rack 412.

[0051] By using the rack 412 and the meshing teeth, when the take-up wheel 52 is rotated, the extension rod 41 can be pushed to slide towards the surgical end of the sheath 2.

[0052] When the lever 42 deforms, the end of the lever 42 near the surgical end of the sheath 2 deforms away from the sheath 2, and this end moves towards the main body 1, causing a distance between the end of the lever 42 near the surgical end and the surgical end. This may cause the retracted spinal nerve to detach from the lever 42. However, the rack 412 and the meshing teeth ensure that during the deformation process, the extension rod 41 slides, so that the end of the lever 42 near the surgical end of the sheath 2 can always remain aligned with the surgical end of the sheath 2.

[0053] Specifically, the retractor tube 3 is rotatably connected to the sheath tube 2, and a fixing bolt 6 is threadedly connected to the side of the retractor tube 3 near the main body 1. The end of the fixing bolt 6 can be pressed against the sheath tube 2.

[0054] By rotating the retraction tube 3, the actuating rod 42 can retract the spinal nerves in all directions of the sheath tube 2.

[0055] Specifically, two water inlet valves 12 are fixedly connected to both sides of the main body 1, and the two water inlet valves 12 are connected to the sheath tube 2 through the main body 1.

[0056] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An endoscope for spinal surgery, characterized in that: Includes the main body (1); An accessory connecting part (11) is disposed on the main body (1) and is used to connect functional modules; Sheath (2), one end of which is fixedly connected to the main body (1), and the other end extends away from the main body (1). The end of the sheath (2) away from the main body (1) is set as the surgical end and extends to the surgical site. A retractor tube (3) is sleeved outside the sheath tube (2); And a retraction component (4), which is disposed on the retraction tube (3) and is used to retract the spinal nerve at the surgical end of the sheath (2).

2. The endoscope for spinal surgery according to claim 1, characterized in that: The retracting tube (3) is provided with a relief groove (31) that runs through the retracting tube (3) along the length of the sheath tube (2), and the relief groove (31) runs through the retracting tube (3) in a direction close to the sheath tube (2); The retraction assembly (4) includes an extension rod (41) which is disposed in a relief groove (31) and one end of the extension rod (41) near the surgical end of the sheath (2) extends out of the relief groove (31). A lever (42) is fixedly connected to one end of the extension rod (41) near the surgical end of the sheath (2) and the lever (42) is configured as an elastic lever (42); And a control line (43), one end of which is connected to the end of the lever (42) near the surgical end of the sheath (2), and the other end passes through the extension rod (41) and extends to the position of the retraction tube (3) near the main body (1). The pulling of the control line (43) can control the end of the lever (42) near the surgical end of the sheath (2) to undergo elastic deformation in a direction away from the sheath (2).

3. The endoscope for spinal surgery according to claim 2, characterized in that: The extension rod (41) is provided with a receiving groove (411) that runs through the extension rod (41) along its length direction on the side away from the sheath (2); The actuating rod (42) is provided with a connecting groove (421) on the side away from the sheath (2) and extending through the actuating rod (42) in the direction of the extension rod (41). The connecting groove (421) is connected to the receiving groove (411). The control line (43) is located in the receiving groove (411) and the connecting groove (421).

4. The endoscope for spinal surgery according to claim 3, characterized in that: On both sides of the connecting groove (421), at positions away from the sheath (2), there are blocking blocks (422) that prevent the control line (43) from detaching from the connecting groove (421).

5. An endoscope for spinal surgery according to claim 4, characterized in that: It also includes a control component (5), which is disposed at one end of the retractor (3) near the main body (1); The control component (5) is used to perform winding and unwinding operations on the control line (43).

6. An endoscope for spinal surgery according to claim 5, characterized in that: The receiving groove (411) is provided with a control groove (32) that passes through the pulling tube (3) in a direction away from the sheath tube (2) at one end near the main body (1); The control groove (32) is provided with two support plates (51) fixedly connected to the pull-out pipe (3) on both sides; The control component (5) includes a take-up wheel (52) rotatably connected to two support plates (51). The take-up wheel (52) is connected to one end of the control line (43) away from the lever (42) so that the take-up and unwinding of the control line (43) can be achieved by rotating the take-up wheel (52).

7. An endoscope for spinal surgery according to claim 6, characterized in that: The axis of the take-up reel (52) is perpendicular to the axis of the sheath (2); The take-up reel (52) is provided with an annular take-up groove (521), and the control line (43) is wound in the take-up groove (521).

8. An endoscope for spinal surgery according to claim 7, characterized in that: The control component (5) also includes a rack (412), which is disposed in the take-up groove (521) and located near the main body (1). The rack (412) is fixedly connected to the extension rod (41) and can slide in the take-up groove (521) along the axial direction of the sheath (2). The take-up reel (52) has a plurality of meshing teeth arranged around it, which mesh with the rack (412).

9. An endoscope for spinal surgery according to claim 8, characterized in that: The retractor tube (3) is rotatably connected to the sheath tube (2). The side of the retractor tube (3) near the main body (1) is threaded with a fixing bolt (6). The end of the fixing bolt (6) can be pressed against the sheath tube (2).

10. An endoscope for spinal surgery according to claim 9, characterized in that: Two water inlet valves (12) are fixedly connected to both sides of the main body (1), and the two water inlet valves (12) are connected to the sheath tube (2) through the main body (1).

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