A unilateral dual-channel spinal endoscope

Abstract

The invention discloses a unilateral dual-channel spinal endoscope, comprising an endoscope, a sheath and an obturator, wherein the sheath comprises a sheath body and a sheath tube, a sheath head is welded and fixed at the sheath tube head, an endoscope assembly hole is arranged in the sheath body, a buckle is arranged at the top of the sheath body, a slot is arranged on the obturator and the endoscope, a protrusion and a limiting part are radially symmetrically arranged on the buckle, the buckle is fixed between the top cover and the sheath body, the protrusion of the buckle protrudes from the notch on the side of the top cover to the outside of the top cover, a limiting groove corresponding to the position of the limiting part is arranged in the top cover, a spring is fixed in the limiting groove, the other end of the spring is sleeved on the limiting part, a water connection pipe is also arranged on the sheath body, a multifunctional joint is arranged at the end of the water connection pipe, and the multifunctional joint and the water connection pipe are an integrated structure. The invention has a simple structure and a reasonable design, can reduce preoperative preparation work, shorten the operation time, reduce the operation risk, and improve the success rate of the operation.

Description

Technical Field

[0001] The invention relates to a spinal surgery tool, in particular to a unilateral double-channel spinal endoscope. Background Art

[0002] There are two commonly used technologies for the treatment of spinal diseases such as herniated disc, intervertebral stenosis, and intervertebral fusion. One is minimally invasive perforaminal endoscopic technology, and the other is traditional open surgery. The development of minimally invasive spinal endoscopic technology is becoming more and more mature, especially the perforaminal endoscopic technology is rapidly popularizing across the country. Perforaminal endoscopic technology is a single channel, which affects the range of the surgical field and restricts the use of surgical instruments. It has advantages in the treatment of herniated disc diseases, but it is more difficult to treat other spinal diseases such as intervertebral stenosis. A new minimally invasive surgery is currently popular, unilateral dual-channel endoscopic technology, one channel is the endoscope channel, and the other channel is the surgical operation channel. This technology has a dedicated channel for surgical instruments, so surgical instruments used in traditional surgery such as bone rongeurs, grinding drills, and osteotomes can be used. This technology makes the surgical process simpler and the surgical indications are wider. However, the following problems still exist:

[0003] 1. The existing borrowed endoscopes and accessories are complicated to assemble during actual use, and the connections between the endoscopes and their accessories are prone to fall off during use.

[0004] 2. Existing endoscope accessories have complex structures and are inconvenient to use.

[0005] 3. In the unilateral dual-channel technology, high requirements are placed on saline control. When using traditional endoscope accessories, the operator may mistakenly turn off or reduce the water intake, affecting the surgical effect.

[0006] The existence of the above problems limits the use of endoscopes and accessories in unilateral dual-channel endoscopic technology, which increases the operation time and difficulty. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a unilateral dual-channel spinal endoscope that can quickly install an endoscope, a sheath and an obturator, thereby shortening the operation time.

[0008] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0009] The present invention discloses a unilateral dual-channel spinal endoscope, comprising an endoscope, a scope sheath and an obturator. The endoscope and the obturator are used in conjunction with the scope sheath respectively. The scope sheath comprises a scope sheath body and a sheath tube. The scope sheath head is welded and fixed to the sheath tube head. An endoscope assembly hole is arranged in the scope sheath body. A buckle is arranged on the top of the scope sheath body. When the buckle is in the original position, the center of its bayonet is misaligned with the center of the endoscope assembly hole. A card slot that is fixed with the buckle is arranged on the obturator and the endoscope. A protruding portion and a limiting portion are radially symmetrically arranged on the buckle, the buckle is fixed between the top cover and the mirror sheath body, the lower end of the top cover is fixed to the outside of the top of the mirror sheath body, the protruding portion of the buckle protrudes from the outside of the top cover from the notch on the side of the top cover, a limiting groove corresponding to the position of the limiting portion is arranged in the top cover, a spring is fixed in the limiting groove, the other end of the spring is sleeved on the limiting portion, a water connecting pipe is also arranged on the mirror sheath body, a multifunctional joint is arranged at the end of the water connecting pipe, and the multifunctional joint and the water connecting pipe are an integrated structure.

[0010] A further improvement of the present invention is that the top of the endoscope assembly hole is a stepped hole, which is divided into a first step portion and a second step portion from top to bottom, a sealing ring is provided on the second step portion, and a retaining ring is provided on the first step portion.

[0011] A further improvement of the present invention is that a position-limiting sealing convex ring cooperating with the retaining ring and the sealing ring is arranged on the endoscope, the position-limiting sealing convex ring is inserted into the retaining ring, and its lower end surface contacts the sealing ring.

[0012] A further improvement of the present invention is that the viewing angle of the endoscope is divided into 0°, 30° or 70°.

[0013] A further improvement of the present invention is that the viewing angle of the sheath head is coordinated with that of the endoscope, and the angle between the vertical line of the end surface of the sheath head and the center line of the sheath head is 0°, 30° or 70°.

[0014] A further improvement of the present invention is that a plurality of lens limiting protrusions for limiting the endoscope are arranged on the inner wall of the sheath head.

[0015] A further improvement of the present invention is that an anti-slip recessed portion is provided on the mirror sheath body.

[0016] A further improvement of the present invention is that a limited sealing convex ring is provided on the obturator.

[0017] A further improvement of the present invention is that the multifunctional connector comprises a front end fixing portion and a rear end fixing portion, the front end fixing portion and the rear end fixing portion are connected via an intermediate connecting portion, the rear end fixing portion is conical, the rear end portion of the rear end fixing portion is integrally formed with the water receiving pipe, and a protrusion that cooperates with the Luer connector is provided on the front end fixing portion.

[0018] The beneficial effects of the present invention are: the endoscope or obturator can be quickly fixed and disassembled by the buckle, and it can be ensured that the sheath will not fall off during use. The operation time is effectively shortened, and the tedious preoperative preparation work is reduced. A sealing structure is provided between the endoscope and the sheath, which can effectively avoid the leakage of saline during the operation. The multifunctional connector can be quickly connected to the Luer connector or hose. The unilateral dual-channel spinal endoscope of the present invention has two water connection methods, which avoids the situation where the water source is turned off or the water intake is reduced due to misoperation during surgery.

[0019] The present invention has a simple structure and a reasonable design, and can reduce preoperative preparation work, shorten operation time, reduce operation risks, and improve operation success rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of assembling the endoscope and the endoscope sheath of the present invention.

[0021] Figure 2 It is a schematic diagram of the coordination between the endoscope head and the endoscope sheath head.

[0022] Figure 3 This is a schematic diagram of the lens limit protrusion.

[0023] Figure 4 This is a schematic diagram of the 0° mirror sheath.

[0024] Figure 5 This is a schematic diagram of the 30° mirror sheath head.

[0025] Figure 6 This is a schematic diagram of the 30° mirror sheath head.

[0026] Figure 7 It is a schematic diagram of a 0° endoscope.

[0027] Figure 8 It is a schematic diagram of the obturator.

[0028] Fig. 9 This is a cross-sectional view of the mirror sheath.

[0029] Wherein: 1-endoscope, 11-limiting sealing convex ring, 2-scope sheath, 21-scope sheath body, 22-sheath tube, 23-buckle, 24-top cover, 25-spring, 26-water connecting pipe, 27-multi-function connector, 28-sealing ring, 29-retaining ring, 210-lens limiting protrusion, 3-obturator. DETAILED DESCRIPTION

[0030] In order to enhance the understanding of the present invention, the present invention will be described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0031] like Figure 1-9As shown, the present invention is a unilateral dual-channel spinal endoscope, comprising an endoscope 1, a sheath 2 and an obturator 3. The endoscope 1 and the obturator 3 are used in conjunction with the sheath 2 respectively. The sheath 2 comprises a sheath body 21 and a sheath tube 22. The sheath tube 22 is welded and fixed to the sheath body 21. A sheath head is welded and fixed to the head of the sheath tube 22. An endoscope assembly hole is arranged in the sheath body 21. A buckle 23 is arranged on the top of the sheath body 21. When the buckle 23 is in the original position, the center of its bayonet is misaligned with the center of the endoscope assembly hole. A card slot that is matched and fixed with the buckle 23 is arranged on the obturator 3 and the endoscope 1. A protrusion and a limit portion are radially symmetrically arranged on the buckle 23. The buckle 23 is fixed between the top cover 24 and the sheath body 21. The lower end of the top cover 24 is fixed at On the outside of the top of the sheath body 21, the protruding part of the buckle 23 protrudes from the notch on the side of the top cover 24 to the outside of the top cover 24, and a limiting groove corresponding to the position of the limiting part is arranged in the top cover 24, and a spring 25 is fixed in the limiting groove, and the other end of the spring 25 is sleeved on the limiting part. When the endoscope 1 is inserted into the sheath 2, the spring 25 is in a compressed state, and the elastic force of the spring makes the buckle 23 tightly fix the endoscope 1 and the obturator 2. The buckle 23 and the spring 25 are convenient for quickly fixing or disassembling the endoscope 1 and the obturator 2. In addition, the preoperative endoscope preparation stage can also be made simpler and faster. A water receiving pipe 26 is also arranged on the sheath body 21, and a multifunctional connector 27 is arranged at the end of the water receiving pipe 26. The multifunctional connector 27 and the water receiving pipe 26 are an integrated structure.

[0032] The top of the endoscope assembly hole is a stepped hole, which is divided into a first step portion and a second step portion from top to bottom. A sealing ring 28 is provided on the second step portion, and a retaining ring 29 is provided on the first step portion. A limiting sealing convex ring 11 is provided on the endoscope 1 to cooperate with the retaining ring 29 and the sealing ring 28. The limiting sealing convex ring 11 is inserted into the retaining ring 29, and its lower end surface is in contact with the sealing ring 28. The sealing ring 28 cooperates with the limiting sealing convex ring 11, and the sealing effect is good. A limiting sealing convex ring is provided on the obturator 3. The obturator 3 is inserted into the mirror sheath 2, and the sealing ring 28 contacts the limiting sealing convex ring on the obturator 3, so as to ensure that saline will not leak out during the entire operation.

[0033] The viewing angle of the endoscope 1 is divided into 0°, 30° or 70°. The sheath head cooperates with the viewing angle of the endoscope 1, and the angle between the end face vertical line of the sheath head and the center line of the sheath head is 0°, 30° or 70°. The sheath head is welded and fixed to the end of the sheath tube 22, and several lens limiting protrusions 210 for limiting the endoscope 1 are arranged on the inner wall of the sheath head, which can limit the head of the endoscope 1 within a certain range, thereby ensuring the stability of the visual field during surgery, and at the same time, can avoid the water outlet of the sheath head from being blocked, thereby ensuring the function of the head to discharge water smoothly. In addition, the obturator 3 cooperates with the sheath head to ensure the stability of the obturator 3 in the sheath, so that the puncture into the body is smooth. After the unilateral dual-channel spinal endoscope of the present invention is clamped with the sheath 2, the sheath head can be used to block the human tissue to keep the visual field clear.

[0034] An anti-skid recess is provided on the sheath body 21. The anti-skid recess effectively prevents skidding and makes the operator more comfortable to hold, which is conducive to the operator to more accurately control the surgical field of view.

[0035] The multifunctional connector 27 includes a front fixing portion and a rear fixing portion, the front fixing portion and the rear fixing portion are connected by an intermediate connecting portion, the rear fixing portion is tapered, the rear end of the rear fixing portion is integrally formed with the water receiving pipe 26, and a protrusion that is matched and connected with the Luer connector is provided on the front fixing portion. The front fixing portion of the multifunctional connector 27 can be quickly connected to the Luer connector, and the rear fixing portion can be quickly connected to the hose. The multifunctional connector 27 has two different water connection methods, which avoids the accidental operation of turning off the water source or reducing the water intake during surgery.

[0036] The present invention needs to be cleaned and disinfected before use, and sterility must be ensured. It is necessary to connect the unilateral dual-channel spinal endoscope to the surgical camera system and the light source, connect the water outlet pipe to the multifunctional connector 27 of the sheath, and after the unilateral dual-channel endoscope channel is established, match the sheath 2 with the obturator 3, and insert the head into the body along the unilateral dual-channel endoscope channel. The anti-slip structure can reduce the occurrence of inaccurate manipulation caused by operator errors. By matching the endoscope 1 of the present invention with the sheath 2 and the obturator 3, the preoperative preparation process can be effectively simplified, which is conducive to shortening the operation time, reducing the surgical risk, and improving the success rate of the operation.

[0037] The present invention has a simple structure and a reasonable design, and can reduce preoperative preparation work, shorten operation time, reduce operation risks, and improve operation success rate.

[0038] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A unilateral dual-channel spinal endoscope, comprising an endoscope (1), a sheath (2) and an obturator (3), wherein the endoscope (1) and the obturator (3) are used in conjunction with the sheath (2), respectively, and characterized in that: The scope sheath (2) comprises a scope sheath body (21) and a sheath tube (22); a scope sheath head is welded and fixed to the head of the sheath tube (22); an endoscope assembly hole is provided in the scope sheath body (21); a buckle (23) is provided at the top of the scope sheath body (21); when the buckle (23) is in an original position, the center of its bayonet is offset from the center of the endoscope assembly hole; a slot for cooperating and fixing with the buckle (23) is provided on the obturator (3) and the endoscope (1); a protrusion and a limiter are radially symmetrically provided on the buckle (23); the buckle (23) is fixed to the top cover (24) and the scope sheath body (21), the lower end of the top cover (24) is fixed to the outside of the top of the mirror sheath body (21), the protruding portion of the buckle (23) protrudes from the notch on the side of the top cover (24) to the outside of the top cover (24), a limiting groove corresponding to the position of the limiting portion is provided in the top cover (24), a spring (25) is fixed in the limiting groove, the other end of the spring (25) is sleeved on the limiting portion, a water receiving pipe (26) is also provided on the mirror sheath body (21), a multifunctional joint (27) is provided at the end of the water receiving pipe (26), and the multifunctional joint (27) and the water receiving pipe (26) are an integral structure.

2. According to claim 1, a unilateral dual-channel spinal endoscope is characterized in that: The top of the endoscope assembly hole is a stepped hole, and the stepped hole is divided into a first stepped portion and a second stepped portion from top to bottom, a sealing ring (28) is provided on the second stepped portion, and a retaining ring (29) is provided on the first stepped portion.

3. According to claim 2, a unilateral dual-channel spinal endoscope is characterized in that: The endoscope (1) is provided with a position-limiting sealing convex ring (11) which cooperates with the retaining ring (29) and the sealing ring (28); the position-limiting sealing convex ring (11) is inserted into the retaining ring (29), and its lower end surface is in contact with the sealing ring (28).

4. The unilateral dual-channel spinal endoscope according to claim 3, characterized in that: The viewing angle of the endoscope (1) is divided into 0°, 30° or 70°.

5. The unilateral dual-channel spinal endoscope according to claim 4, characterized in that: The sheath head is matched with the viewing angle of the endoscope (1), and the angle between the vertical line of the end surface of the sheath head and the center line of the sheath head is 0°, 30° or 70°.

6. The unilateral dual-channel spinal endoscope according to claim 5, characterized in that: A plurality of lens limiting protrusions (210) for limiting the endoscope (1) are arranged on the inner wall of the sheath head.

7. The unilateral dual-channel spinal endoscope according to claim 1, characterized in that: An anti-slip recessed portion is provided on the mirror sheath body (21).

8. The unilateral dual-channel spinal endoscope according to claim 2, characterized in that: A limited sealing convex ring is provided on the obturator (3).

9. The unilateral dual-channel spinal endoscope according to claim 1, characterized in that: The multifunctional connector (27) comprises a front end fixing portion and a rear end fixing portion, the front end fixing portion and the rear end fixing portion being connected via an intermediate connecting portion, the rear end fixing portion being conical, the rear end portion of the rear end fixing portion being integrally formed with the water receiving pipe (26), and a protrusion that cooperates with a Luer connector being provided on the front end fixing portion.

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