Working sleeve of spinal endoscope

Abstract

The utility model provides a spinal endoscope working sleeve, which belongs to the technical field of endoscopes, and comprises an outer tube body and an inner tube body, one end of the outer tube body is provided with an outer tube handle, the outer tube handle is connected with a pressing block and a reset spring, one end of the pressing block is provided with a push block, and the outer tube handle is internally provided with a rotating rod, a connecting plate and a movable plate. The movable plate is connected with a positioning block and a positioning spring; the inner tube body is connected with an inner tube handle, and a positioning groove is formed in the side wall of the inner tube handle. The utility model has the beneficial effects that the inner pipe body and the outer pipe body can be conveniently and quickly mounted through the inner pipe handle and the chamfer, and the manual positioning of operators can be reduced; in addition, during disassembly, a pressing block can be pressed to drive a pushing block to move, then one end of a movable plate is driven to extrude a positioning spring through the action of a connecting plate and a rotating rod, and therefore a positioning block is separated from a positioning groove, separation of the outer pipe body and the inner pipe body is completed, operation steps are reduced, and time cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a spinal endoscope working sleeve. Background Art

[0002] Since minimally invasive spinal surgery causes less traction and stripping of soft tissues, it can reduce postoperative pain and shorten recovery time. With the development of microendoscopic technology and the clinical application of special surgical instruments and equipment, surgeons can complete previous surgical operations through one or more tiny incisions. Similar to open surgery, minimally invasive spinal surgery can also achieve minimally invasive nerve decompression, spinal stabilization and fusion, and correction of spinal deformities. Minimally invasive spinal surgery requires the use of rigid endoscopes such as intervertebral disc endoscopes as the main surgical tools.

[0003] In the prior art, the outer sleeve and the final working sleeve formed in traditional surgery are usually used separately, so the doctor has to use other tools to operate after the forming is completed and then replace the working sleeve, which increases the steps in the surgical process, delays time, and may cause liquid leakage due to excessive gaps at the connection. How to invent a method to improve these problems has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a spinal endoscope working sleeve, which aims to improve the problem that doctors have to use other tools to replace the working sleeve after the molding is completed, thereby increasing the surgical steps and wasting time.

[0005] The utility model is achieved in this way:

[0006] A spinal endoscope working sleeve, comprising an outer tube body and an inner tube body, an outer tube handle is provided at one end of the outer tube body, a pressing block and a reset spring are connected to the outer tube handle, a push block is provided at one end of the pressing block, a pair of rotating rods, a connecting plate and a movable plate are provided inside the outer tube handle, and the movable plate is connected to a positioning block and a positioning spring;

[0007] The inner tube body is located inside the outer tube body, and the inner tube body is connected to an inner tube handle, wherein symmetrical side walls of the inner tube handle are provided with positioning grooves corresponding to the positioning blocks.

[0008] Preferably, the outer tube handle is in a "U" shape, the outer tube handle is fixedly connected to the outer tube body, and a mounting groove matching with the inner tube handle is provided on the side wall at the other end of the outer tube handle.

[0009] By adopting the above technical solution, the inner tube handle can be conveniently engaged and limited through the installation groove.

[0010] Preferably, a "U"-shaped placement groove is provided inside the outer tube handle, docking holes are provided inside the placement groove on two symmetrical sides close to the installation groove, and a plane groove is provided on one side of the placement groove.

[0011] By adopting the above technical solution, the planar groove is provided so that the push block can move farther, thereby ensuring the separation of the positioning block and the positioning groove.

[0012] Preferably, the two ends of the two rotating rods are rotatably connected to the inner walls on both sides of the placement groove symmetrically, and the outer walls of the rotating rods are fixedly connected to the corresponding connecting plates and the movable plates respectively, and the connecting plates are in a "V" shape.

[0013] By adopting the above technical solution, the push block drives the "V"-shaped connecting plate to move, and the rotating column further drives the movable plate to move.

[0014] Preferably, the pressing block is in a "T" shape, one end of the pressing block passes through the side wall of the outer tube handle and is fixedly connected to the side wall of the push block, and the two ends of the push block are rotatably connected to one end of two connecting plates respectively.

[0015] Preferably, the return spring is sleeved on the outer wall of one end of the pressing block located inside the placement groove, and the two ends of the return spring are respectively fixedly connected to the inner wall of the placement groove and the side wall of the push block.

[0016] By adopting the above technical solution, after the pressing block is squeezed, the reset spring drives the push block to reset.

[0017] Preferably, the side wall of the movable plate near one end of the docking hole is fixedly connected to the positioning block, the positioning block passes through the corner of one end of the docking hole and is chamfered, the other side of the movable plate is fixedly connected to one end of the positioning spring, and the other end of the positioning spring is fixedly connected to the inner wall of the placement groove;

[0018] By adopting the above technical solution, the chamfer is squeezed by the inner tube handle so that the movable plate can automatically squeeze the positioning spring, thereby reducing the manual positioning of the operator.

[0019] Preferably, a rubber ring is provided on the side wall where the inner tube handle and the inner tube body are connected, and the rubber ring is fixedly sleeved on the outer wall of the inner tube body, and the outer diameter of the rubber ring is larger than the inner diameter of the outer tube body;

[0020] By adopting the above technical solution, after the inner tube handle is fixedly installed inside the installation groove, the rubber ring can be squeezed to seal the gap between the outer tube body and the inner tube body to ensure sealing and prevent liquid leakage.

[0021] The beneficial effects of the utility model are:

[0022] By squeezing the chamfered corner with the inner tube handle, the movable plate can automatically squeeze the positioning spring, which facilitates the quick installation of the inner tube body and the outer tube body and reduces the manual positioning of the operator. In addition, the rubber ring can seal the gap to ensure the sealing and prevent liquid leakage. In addition, when disassembling, the pressing block can be pressed to drive the push block to move, and then the connecting plate and the rotating rod can be used to drive one end of the movable plate to squeeze the positioning spring, thereby separating the positioning block from the positioning groove and completing the separation of the outer tube body and the inner tube body, thereby reducing the operating steps and saving time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure provided by the implementation method of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the inner tube body provided in the embodiment of the utility model;

[0026] Figure 3 This is a partial structural cross-sectional view of the outer tube handle provided in an embodiment of the utility model;

[0027] Figure 4 The utility model embodiment provides Figure 3 A schematic diagram of the enlarged structure in the middle.

[0028] In the figure: 1. outer tube body; 2. outer tube handle; 3. inner tube handle; 4. inner tube body; 5. positioning groove; 6. rubber ring; 7. installation groove; 8. placement groove; 9. rotating rod; 10. connecting plate; 11. plane groove; 12. pressing block; 13. reset spring; 14. pushing block; 15. docking hole; 16. chamfer; 17. positioning block; 18. movable plate; 19. positioning spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] Reference Figure 1-4 A spinal endoscope working sleeve comprises an outer tube body 1 and an inner tube body 4, an outer tube handle 2 is provided at one end of the outer tube body 1, a pressing block 12 and a reset spring 13 are connected to the outer tube handle 2, a push block 14 is provided at one end of the pressing block 12, a pair of rotating rods 9, a connecting plate 10 and a movable plate 18 are provided inside the outer tube handle 2, and the movable plate 18 is connected to a positioning block 17 and a positioning spring 19;

[0032] The inner tube body 4 is located inside the outer tube body 1 , and is connected to an inner tube handle 3 . The inner tube handle 3 has symmetrical side walls provided with positioning grooves 5 corresponding to the positioning blocks 17 .

[0033] Furthermore, the outer tube handle 2 is in a "U" shape, the outer tube handle 2 is fixedly connected to the outer tube body 1, and the side wall of the outer tube handle 2 is provided with a mounting groove 7 that matches the inner tube handle 3; the side wall connecting the inner tube handle 3 and the inner tube body 4 is provided with a rubber ring 6, the rubber ring 6 is fixedly sleeved on the outer wall of the inner tube body 4, and the outer diameter of the rubber ring 6 is larger than the inner diameter of the outer tube body 1

[0034] It should be noted that: the inner tube handle 3 can be conveniently engaged and limited by the installation groove 7; in addition, after the inner tube handle 3 is fixedly installed inside the installation groove 7, the rubber ring 6 can be squeezed to seal the gap between the outer tube body 1 and the inner tube body 4 to ensure sealing and prevent liquid leakage.

[0035] Reference Figure 3-4 , further; a "U"-shaped placement groove 8 is opened inside the outer tube handle 2, and docking holes 15 are opened on the symmetrical sides of the placement groove 8 near the mounting groove 7, and a flat groove 11 is opened on one side of the placement groove 8; the two ends of the two rotating rods 9 are respectively rotatably connected to the inner walls of the symmetrical sides of the placement groove 8, and the outer walls of the rotating rods 9 are respectively fixedly connected to the corresponding connecting plates 10 and the movable plates 18, and the connecting plates 10 are "V" shaped; the pressing block 12 is "T" shaped, and one end of the pressing block 12 passes through the side wall of the outer tube handle 2 and is fixedly connected to the side wall of the push block 14, and the push block 1 4, two ends of the two connecting plates 10 are rotatably connected at one end; the reset spring 13 is sleeved on the outer wall of the end of the pressing block 12 located inside the placement groove 8, and the two ends of the reset spring 13 are fixedly connected to the inner wall of the placement groove 8 and the side wall of the push block 14 respectively; the side wall of the movable plate 18 close to the docking hole 15 is fixedly connected to the positioning block 17, and the positioning block 17 passes through the docking hole 15. The corner at one end is provided with a chamfer 16, and the other side of the movable plate 18 is fixedly connected to one end of the positioning spring 19, and the other end of the positioning spring 19 is fixedly connected to the inner wall of the placement groove 8.

[0036] It should be noted that: through the squeezing of the chamfer 16 by the inner tube handle 3, the movable plate 18 can automatically squeeze the positioning spring 19, which is convenient for the quick installation of the inner tube body 4 and the outer tube body 1, and will reduce the manual positioning of the operator, and the gap of the docking hole 15 is sufficient for the movement of the positioning block 17 to avoid the occurrence of motion interference; in addition, when disassembling, the pressing block 12 can be pressed to drive the push block 14 to move, and then the action of the connecting plate 10 and the rotating rod 9 can drive one end of the movable plate 18 to squeeze the positioning spring 19, thereby separating the positioning block 17 from the positioning groove 5, and completing the separation of the outer tube body 1 and the inner tube body 4.

[0037] The working principle of this type is as follows: the inner tube handle 3 squeezes the chamfer 16 so that the movable plate 18 can automatically squeeze the positioning spring 19, which is convenient for quick installation of the inner tube body 4 and the outer tube body 1, and will reduce the manual positioning of the operator, and the gap of the docking hole 15 is sufficient for the movement of the positioning block 17 to avoid the occurrence of motion interference; in addition, after the inner tube handle 3 is fixedly installed inside the installation groove 7, the rubber ring 6 can be squeezed, thereby sealing the gap between the outer tube body 1 and the inner tube body 4 to ensure the sealing and prevent liquid leakage; in addition, when disassembling, the pressing block 12 can be pressed to drive the push block 14 to move, and then the end of the movable plate 18 is driven by the action of the connecting plate 10 and the rotating rod 9 to squeeze the positioning spring 19, thereby separating the positioning block 17 from the positioning groove 5, and completing the separation of the outer tube body 1 and the inner tube body 4.

[0038] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0039] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spinal endoscope working sleeve, comprising an outer tube body (1) and an inner tube body (4), characterized in that: An outer tube handle (2) is provided at one end of the outer tube body (1), and the outer tube handle (2) is connected to a pressing block (12) and a return spring (13), and a push block (14) is provided at one end of the pressing block (12). A pair of rotating rods (9), a connecting plate (10) and a movable plate (18) are provided inside the outer tube handle (2), and the movable plate (18) is connected to a positioning block (17) and a positioning spring (19); The inner tube body (4) is located inside the outer tube body (1), and the inner tube body (4) is connected to an inner tube handle (3). The inner tube handle (3) has symmetrical side walls provided with positioning grooves (5) corresponding to the positioning blocks (17).

2. A spinal endoscope working sleeve according to claim 1, characterized in that: The outer tube handle (2) is in a "U" shape and is fixedly connected to the outer tube body (1). A mounting groove (7) matching with the inner tube handle (3) is provided on the side wall at the other end of the outer tube handle (2).

3. A spinal endoscope working sleeve according to claim 2, characterized in that: A "U"-shaped placement groove (8) is provided inside the outer tube handle (2), docking holes (15) are provided inside the placement groove (8) on two symmetrical sides close to the installation groove (7), and a plane groove (11) is provided on one side of the placement groove (8).

4. A spinal endoscope working sleeve according to claim 3, characterized in that: The two ends of the two rotating rods (9) are rotatably connected to the inner walls of the placement groove (8) on both sides symmetrically, and the outer walls of the rotating rods (9) are fixedly connected to the corresponding connecting plates (10) and the movable plate (18), respectively, and the connecting plates (10) are in a "V" shape.

5. The spinal endoscope working sleeve according to claim 1, characterized in that: The pressing block (12) is in a "T" shape, one end of the pressing block (12) passes through the side wall of the outer tube handle (2) and is fixedly connected to the side wall of the push block (14), and the two ends of the push block (14) are rotatably connected to one end of two connecting plates (10).

6. A spinal endoscope working sleeve according to claim 3, characterized in that: The return spring (13) is sleeved on the outer wall of one end of the pressing block (12) located inside the placement groove (8), and the two ends of the return spring (13) are respectively fixedly connected to the inner wall of the placement groove (8) and the side wall of the push block (14).

7. The spinal endoscope working sleeve according to claim 3, characterized in that: The movable plate (18) is fixedly connected to the side wall of one end of the docking hole (15) with the positioning block (17); the positioning block (17) passes through the docking hole (15) and is provided with a chamfer (16) at the corner; the other side of the movable plate (18) is fixedly connected to one end of a positioning spring (19); the other end of the positioning spring (19) is fixedly connected to the inner wall of the placement groove (8).

8. The spinal endoscope working sleeve according to claim 1, characterized in that: A rubber ring (6) is provided on the side wall where the inner tube handle (3) and the inner tube body (4) are connected. The rubber ring (6) is fixedly sleeved on the outer wall of the inner tube body (4). The outer diameter of the rubber ring (6) is greater than the inner diameter of the outer tube body (1).

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