An endoscope for spinal surgery

Abstract

The application discloses an endoscope for spine surgery, which comprises a main body, an accessory connecting part, a sheath tube, a retractor tube and a retractor assembly. The accessory connecting part is arranged on the main body and used for connecting a functional module. One end of the sheath tube is fixedly connected to the main body, and the other end extends away from the main body. The end of the sheath tube away from the main body is arranged as a surgery end and extends to a surgery site. The retractor tube is arranged outside the sheath tube. The retractor assembly is arranged on the retractor tube and used for retracting a spinal nerve at the surgery end of the sheath tube. Through the arrangement of the retractor assembly, a doctor only needs to operate the endoscope to realize the retraction of the spinal nerve, so that the operation convenience is improved, and the surgery in a narrow area is facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of spinal surgical instruments, and more specifically, to an endoscope for spinal surgery. Background Technology

[0002] Spinal endoscopy is one of the most promising minimally invasive spinal surgery techniques today, and it is widely used in clinical practice. Based on the anatomical structure and physiological characteristics of the spine, this technique can provide targeted and precise treatment for common spinal nerve root compression diseases.

[0003] During spinal surgery, to expand the operative field of view of the spinal endoscope and avoid damage to the spinal nerves, a separate retractor is sometimes used in conjunction with the procedure. The retractor can retract the spinal nerves, expanding the operative range of the endoscope at the surgical site. However, existing retractors are not convenient to use. The surgeon needs to operate the endoscope and the retractor simultaneously, placing excessive demands on the surgeon's skills. Furthermore, the retractor is difficult to adjust within a confined area, limiting the efficiency of the surgery and posing certain risks. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an endoscope for spinal surgery. Through the setting of the retraction component, the doctor can retract the spinal nerve simply by operating the endoscope, which improves the convenience of operation and facilitates surgery in a narrow area.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an endoscope for spinal surgery, comprising a main body;

[0006] An accessory connecting part is disposed on the main body and is used to connect functional modules;

[0007] A sheath, one end of which is fixedly connected to the main body, and the other end of which extends away from the main body. The end of the sheath away from the main body is set as the surgical end and extends to the surgical site.

[0008] A retractor tube, which is sleeved outside the sheath tube;

[0009] And a retraction component, which is disposed on the retraction tube and is used to retract the spinal nerve at the surgical end of the sheath.

[0010] The present invention is further configured such that: a clearance groove is provided inside the retraction tube, which extends through the retraction tube along the length of the sheath tube, and the clearance groove extends through the retraction tube in a direction close to the sheath tube;

[0011] The retraction assembly includes an extension rod disposed in a relief groove, with one end of the extension rod near the surgical end of the sheath extending out of the relief groove;

[0012] A lever, which is fixedly connected to one end of the extension rod near the surgical end of the sheath and is configured as an elastic lever;

[0013] And a control line, one end of which is connected to the end of the lever near the surgical end of the sheath, and the other end passes through the extension rod and extends to the position of the retraction tube near the main body. The pulling of the control line can control the end of the lever near the surgical end of the sheath to undergo elastic deformation in a direction away from the sheath.

[0014] The present invention is further configured such that: a receiving groove is provided on the side of the extension rod away from the sheath tube, extending through the extension rod along the length direction of the extension rod;

[0015] The actuating lever is provided with a connecting groove on the side away from the sheath tube, which extends through the actuating lever towards the extension rod, and the connecting groove is connected to the receiving groove.

[0016] The control lines are located in the receiving slot and the connecting slot.

[0017] The present invention is further configured such that: on both sides of the connecting groove, at positions away from the sheath, there are blocking blocks to prevent the control line from detaching from the connecting groove.

[0018] The present invention is further configured to include a control component, wherein the control component is disposed at one end of the retractor tube near the main body;

[0019] The control component is used to perform winding and unwinding operations on the control line.

[0020] The present invention is further configured such that: a control groove is provided at one end of the receiving groove near the main body, extending through the pulling tube in a direction away from the sheath tube;

[0021] Two support plates are fixedly connected to the pull-out pipe on both sides of the control groove;

[0022] The control assembly includes a take-up wheel rotatably connected to two support plates. The take-up wheel is connected to the end of the control line away from the lever so that the take-up and unwinding of the control line can be achieved by rotating the take-up wheel.

[0023] The present invention is further configured such that the axis of the winding reel is perpendicular to the axis of the sheath tube;

[0024] The take-up reel is provided with an annular take-up groove, and the control line is wound into the take-up groove.

[0025] The invention is further configured such that: the control component also includes a rack, the rack is disposed in the take-up groove and located near the main body of the take-up groove, the rack is fixedly connected to the extension rod and can slide in the take-up groove along the axial direction of the sheath tube;

[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; An accessory connecting part is disposed on the main body and is used to connect functional modules; A sheath, one end of which is fixedly connected to the main body, and the other end of which extends away from the main body. The end of the sheath away from the main body is set as the surgical end and extends to the surgical site. A retractor tube, which is sleeved outside the sheath tube; And a retraction component, which is disposed on the retraction tube and is used to retract the spinal nerve at the surgical end of the sheath; The retracting tube is provided with a relief groove that extends through the retracting tube along the length of the sheath tube, and the relief groove extends through the retracting tube in a direction close to the sheath tube. The retraction assembly includes an extension rod disposed in a relief groove, with one end of the extension rod near the surgical end of the sheath extending out of the relief groove; A lever, which is fixedly connected to one end of the extension rod near the surgical end of the sheath and is configured as an elastic lever; And a control line, one end of which is connected to the end of the lever near the surgical end of the sheath, and the other end passes through the extension rod and extends to the position of the retraction tube near the main body. The pulling of the control line can control the end of the lever near the surgical end of the sheath to undergo elastic deformation in a direction away from the sheath. It also includes a control component, which is disposed at one end of the retractor tube near the main body; The control component is used for winding and unwinding the control line; The extension rod is provided with a receiving groove that extends through the extension rod along its length on the side away from the sheath. The receiving groove is provided with a control groove that extends through the pull-out tube in a direction away from the sheath at one end near the main body; Two support plates are fixedly connected to the pull-out pipe on both sides of the control groove; The control assembly includes a take-up wheel rotatably connected to two support plates. The take-up wheel is connected to the end of the control line away from the lever so that the take-up and unwinding of the control line can be achieved by rotating the take-up wheel. The axis of the take-up reel is perpendicular to the axis of the sheath. The take-up reel is provided with an annular take-up groove, and the control line is wound into the take-up groove; The control assembly also includes a rack, which is disposed in the take-up groove and located near the main body. The rack is fixedly connected to the extension rod and can slide along the axis of the sheath in the take-up groove. 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.

2. The endoscope for spinal surgery according to claim 1, characterized in that: The actuating lever is provided with a connecting groove on the side away from the sheath tube, which extends through the actuating lever towards the extension rod, and the connecting groove is connected to the receiving groove. The control lines are located in the receiving slot and the connecting slot.

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

4. The endoscope for spinal surgery according to claim 3, characterized in 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. The end of the fixing bolt can be pressed against the sheath.

5. An endoscope for spinal surgery according to claim 4, characterized in 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.

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