Endoscope sheath for double-channel spine endoscope minimally invasive surgery

Abstract

The utility model provides an endoscope sheath for a double-channel spine endoscope minimally invasive surgery, which belongs to the technical field of medical instruments and comprises an endoscope sheath and a sheath tube, the endoscope sheath is connected with a fixing block, a fixing ring and a bearing are arranged in the endoscope sheath, and the fixing ring is connected with a positioning bulge; the sheathing canal is connected with a fixed sleeve, and a rubber ring, a telescopic spring and a mounting plate are arranged in the sheathing canal. The endoscope sheath has the advantages that the endoscope sheath can be conveniently, independently and rapidly replaced, the structure is firm, the maintenance and use cost is reduced, the sealing effect between the connecting groove and the endoscope sheath is guaranteed, water flow leakage is avoided, in addition, the multi-view-angle use of the endoscope can be increased through the wave-shaped section, and damage to a patient is reduced in the moving process; the endoscope is positioned through the three positioning protrusions, it is guaranteed that the front end of the endoscope and the endoscope sheath are coaxial, meanwhile, it can be guaranteed that a water outlet channel is unblocked and an object viewing point is located at the center point, in addition, the front end of the endoscope can rotate stably and smoothly through the bearing and the fixing ring, and then the operation effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, and in particular to a double-channel spinal endoscope sheath for minimally invasive surgery. Background Art

[0002] At present, dual-channel spinal endoscopic minimally invasive surgery is developing rapidly in China. More and more hospitals and doctors are carrying out this type of surgery. Because of lower surgical trauma and better clinical efficacy, this treatment method is recognized by more patients. This surgery uses an endoscope to monitor the surgical process in real time to ensure the safety and treatment effect of the surgery.

[0003] At present, endoscopes are used clinically, and arthroscopes and arthroscopic sheaths are mostly used to perform double-channel spinal endoscopic minimally invasive surgery. Due to the needs of surgery, arthroscopes are designed with double water nozzles to ensure the amount of water entering the endoscope for flushing. In order to ensure the smooth flow of large water, the gap between the existing arthroscopic main mirror and the sheath is relatively large, which can easily cause the main mirror and the front end of the sheath to be eccentric. This eccentricity can easily cause blockage, resulting in unclear surgical field of view, thereby affecting the flushing effect of the operation. In addition, the integral design is not convenient for replacing the worn sheath separately, which increases the cost. 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 deficiencies, the utility model provides a dual-channel spinal endoscopic minimally invasive surgery sheath, which aims to improve the existing arthroscopic main mirror and the sheath to ensure the smooth flow of water. The gap between the two is relatively large, which can easily cause the main mirror and the front end of the sheath to be eccentric. This eccentricity can easily cause blockage, resulting in unclear surgical field of view, thereby affecting the flushing effect of the operation. In addition, the overall design is not convenient for individual replacement of the worn sheath, which increases the cost.

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

[0006] The utility model provides a dual-channel spinal endoscope minimally invasive surgery sheath, comprising a sheath and a sheath tube, one end of the sheath is provided with a pair of fixing blocks, the interior of the sheath is provided with a fixing ring and a bearing, and the fixing ring is connected with three positioning protrusions;

[0007] The sheath tube is located at one end of the scope sheath, the sheath tube is connected with a fixing sleeve, and a rubber ring, a telescopic spring and a pair of mounting plates are arranged inside the sheath tube.

[0008] Preferably, the outer wall of one end of the mirror sheath is fixedly connected to two fixing blocks at two sides symmetrically about the central axis, and the other end of the mirror sheath is provided with a corrugated section.

[0009] By adopting the above technical solution, the wavy section can increase the use of multiple viewing angles of the endoscope and reduce damage to the patient during movement.

[0010] Preferably, an annular placement groove is provided on the inner wall of one end of the mirror sheath close to the wavy section, and an installation groove is provided on the middle inner wall of the placement groove.

[0011] Preferably, the middle of the outer wall of the fixing ring is fixedly connected to the inner ring of the bearing, and the outer ring of the bearing is fixedly connected to the mounting groove.

[0012] Preferably, the three positioning protrusions are fixed to the inner wall of the fixing ring in a circumferential array, and the outer wall of the fixing ring is slidably connected to the inner wall of the placement groove.

[0013] By adopting the above technical solution, after the front end of the endoscope is inserted into the sheath, it can be positioned by three positioning protrusions to ensure that the front end of the endoscope and the sheath are coaxial, while ensuring that the water outlet channel is unobstructed and the viewing point is located at the center point. In addition, the bearing and the fixing ring can facilitate the stable and smooth rotation of the front end of the endoscope.

[0014] Preferably, one end of the sheath tube is fixedly connected to the fixed sleeve, the sheath tube is connected to a water receiving pipe, and a docking groove is provided on the side wall of the end of the sheath tube connected to the fixed sleeve.

[0015] Preferably, the two ends of the telescopic spring are respectively fixedly connected to two mounting plates, one of the mounting plates is fixedly connected to the inner wall of the inner end of the docking groove, and the other side wall of the other mounting plate is fixedly connected to a rubber ring, the outer diameter of the rubber ring is interference fit with the inner wall of the docking groove, and the inner diameter of the rubber ring is larger than the outer diameter of the mirror sheath.

[0016] By adopting the above technical solution, the rubber ring can ensure the sealing effect between the docking groove and the mirror sheath, thereby preventing water leakage. In addition, the telescopic spring and the mounting plate can apply stress to the mirror sheath to prevent the mirror sheath and the fixing sleeve from being separated due to external factors after the mirror sheath is fixed by the fixing block.

[0017] Preferably, the side wall of the fixed sleeve at one end away from the sheath is provided with a limiting groove corresponding to the fixed block, the fixed sleeve is provided with an arc-shaped moving groove on one side of the limiting groove, and a positioning groove is provided on one side of the moving groove.

[0018] The beneficial effects of the utility model are:

[0019] The fixing block is docked with the limiting groove, and then pressure is applied to the mirror sheath and the telescopic spring is squeezed through the mounting plate, so that the fixing block moves to the inside of the moving groove, and then the mirror sheath is rotated and the external force applied to the mirror sheath is removed, and then the fixing block is inserted into the positioning groove through the elastic recovery of the telescopic spring, and finally the installation and fixation of the mirror sheath is completed; in addition, the rubber ring can ensure the sealing effect between the docking groove and the mirror sheath, so as to avoid water leakage, and in addition, the telescopic spring and the mounting plate can apply stress to the mirror sheath, so as to avoid the mirror sheath and the fixing sleeve from being separated due to external effects after the mirror sheath is fixed by the fixing block, so as to facilitate the separate replacement of the mirror sheath and reduce costs;

[0020] In addition, the wavy section can increase the use of multiple viewing angles of the endoscope and reduce damage to the patient during movement; after the front end of the endoscope is inserted into the sheath, it can be positioned by three positioning protrusions to ensure that the front end of the endoscope and the sheath are coaxial, while ensuring that the water outlet channel is unobstructed and the viewing point is located at the center point. In addition, the bearing and the fixing ring can facilitate the stable and smooth rotation of the front end of the endoscope, thereby ensuring the surgical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a schematic diagram of the overall structure provided by the implementation method of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the end portion of the mirror sheath provided by an embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional view of the internal structure of the rear end of the mirror sheath provided by the embodiment of the utility model;

[0025] Figure 4 It is a cross-sectional view of a local structure of a sheath provided in an embodiment of the utility model;

[0026] Figure 5 The utility model embodiment provides Figure 4 A magnified view of the structure in the middle.

[0027] In the figure: 1. Mirror sheath; 2. Water connecting pipe; 3. Sheath tube; 4. Fixed sleeve; 5. Wave-shaped section; 6. Fixed block; 7. Mounting groove; 8. Placement groove; 9. Positioning protrusion; 10. Fixed ring; 11. Bearing; 12. Docking groove; 13. Mounting plate; 14. Telescopic spring; 15. Rubber ring; 16. Limiting groove; 17. Positioning groove; 18. Moving groove. DETAILED DESCRIPTION

[0028] 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.

[0029] Example

[0030] Reference Figure 1-5 A dual-channel spinal endoscope minimally invasive surgery sheath comprises a sheath 1 and a sheath tube 3. A pair of fixing blocks 6 are arranged at one end of the sheath 1. A fixing ring 10 and a bearing 11 are arranged inside the sheath 1. The fixing ring 10 is connected with three positioning protrusions 9.

[0031] The sheath tube 3 is located at one end of the scope sheath 1 , and is connected to a fixing sleeve 4 . A rubber ring 15 , a telescopic spring 14 and a pair of mounting plates 13 are arranged inside the sheath tube 3 .

[0032] Furthermore; the outer wall of one end of the mirror sheath 1 is fixedly connected to two fixing blocks 6 on both sides symmetrically about the central axis, and the other end of the mirror sheath 1 is provided with a corrugated section 5; the inner wall of one end of the mirror sheath 1 close to the corrugated section 5 is provided with an annular placement groove 8, and the inner wall in the middle of the placement groove 8 is provided with a mounting groove 7; the middle of the outer wall of the fixing ring 10 is fixedly connected to the inner ring of the bearing 11, and the outer ring of the bearing 11 is fixedly connected to the mounting groove 7; three positioning protrusions 9 are fixed to the inner wall of the fixing ring 10 in a circular array, and the outer wall of the fixing ring 10 is slidably connected to the inner wall of the placement groove 8.

[0033] It should be noted that: the wavy section 5 can increase the use of multiple viewing angles of the endoscope and reduce damage to the patient during movement; after the front end of the endoscope is inserted into the sheath 1, it can be positioned by three positioning protrusions 9 to ensure that the front end of the endoscope and the sheath 1 are coaxial, while ensuring that the water outlet channel is unobstructed and the viewing point is located at the center point. In addition, the bearing 11 and the fixing ring 10 can facilitate the stable and smooth rotation of the front end of the endoscope.

[0034] Reference Figure 3-4, further; one end of the sheath tube 3 is fixedly connected to the fixed sleeve 4, the sheath tube 3 is connected to the water pipe 2, and the side wall of the end of the sheath tube 3 connected to the fixed sleeve 4 is provided with a docking groove 12; the two ends of the telescopic spring 14 are respectively fixedly connected to two mounting plates 13, one of which is fixedly connected to the inner wall of the inner end of the docking groove 12, and the other side wall of the other mounting plate 13 is fixedly connected to the rubber ring 15, the outer diameter of the rubber ring 15 is interference fit with the inner wall of the docking groove 12, and the inner diameter of the rubber ring 15 is larger than the outer diameter of the mirror sheath 1; the side wall of the fixed sleeve 4 away from the sheath tube 3 is provided with a limiting groove 16 corresponding to the fixed block 6, the fixed sleeve 4 is provided with an arc-shaped movable groove 18 on one side of the limiting groove 16, and a positioning groove 17 is provided on one side of the movable groove 18

[0035] It should be noted that: the fixing block 6 is docked with the limiting groove 16, and then pressure is applied to the mirror sheath 1 and the telescopic spring 14 is squeezed through the mounting plate 13, so that the fixing block 6 moves to the inside of the moving groove 18, and then the mirror sheath 1 is rotated 90 degrees and the external force applied to the mirror sheath 1 is removed, and then the fixing block 6 is inserted into the positioning groove 17 through the elastic recovery of the telescopic spring 14, and finally the installation and fixation of the mirror sheath 1 is completed; in addition, the rubber ring 15 can ensure the sealing effect between the docking groove 12 and the mirror sheath 1, thereby preventing water leakage. In addition, the telescopic spring 14 and the mounting plate 13 can ensure the sealing effect between the docking groove 12 and the mirror sheath 1, thereby preventing water leakage. The mounting plate 13 can apply stress to the sheath 1 to prevent the sheath 1 and the fixed sleeve 4 from being separated due to external forces after the sheath 1 is fixed by the fixing block 6; in addition, the wavy section 5 can increase the use of multiple viewing angles of the endoscope and reduce damage to the patient during movement; after the front end of the endoscope is inserted into the sheath 1, it can be positioned by three positioning protrusions 9 to ensure that the front end of the endoscope and the sheath 1 are coaxial, while ensuring that the water outlet channel is unobstructed and the viewing point is located at the center point. In addition, the bearing 11 and the fixing ring 10 can facilitate the stable and smooth rotation of the front end of the endoscope.

[0036] The working principle of this method is as follows: the fixing block 6 is docked with the limiting groove 16, and then pressure is applied to the mirror sheath 1 and the telescopic spring 14 is squeezed through the mounting plate 13, so that the fixing block 6 moves to the inside of the moving groove 18, and then the mirror sheath 1 is rotated 90 degrees and the external force applied to the mirror sheath 1 is removed, and then the fixing block 6 is inserted into the positioning groove 17 through the elastic recovery of the telescopic spring 14, and finally the installation and fixation of the mirror sheath 1 is completed; in addition, the rubber ring 15 can ensure the sealing effect between the docking groove 12 and the mirror sheath 1, so as to avoid water leakage, and in addition, the telescopic spring 14 and the mounting plate 13 can apply stress to the mirror sheath 1 to avoid the mirror sheath 1 and the fixed sleeve 4 from being separated due to external effects after the mirror sheath 1 is fixed by the fixing block 6.

[0037] 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.

[0038] 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 dual-channel spinal endoscopic minimally invasive surgery sheath, comprising a sheath (1) and a sheath tube (3), characterized in that: A pair of fixing blocks (6) are provided at one end of the mirror sheath (1), a fixing ring (10) and a bearing (11) are provided inside the mirror sheath (1), and the fixing ring (10) is connected to three positioning protrusions (9); The sheath tube (3) is located at one end of the mirror sheath (1), the sheath tube (3) is connected to a fixing sleeve (4), and a rubber ring (15), a telescopic spring (14) and a pair of mounting plates (13) are arranged inside the sheath tube (3).

2. A dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 1, characterized in that: The outer wall of one end of the mirror sheath (1) is fixedly connected to two fixing blocks (6) at two sides symmetrically about the central axis, and the other end of the mirror sheath (1) is provided with a corrugated section (5).

3. A dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 2, characterized in that: An annular placement groove (8) is provided on the inner wall of one end of the mirror sheath (1) close to the wavy section (5), and an installation groove (7) is provided on the middle inner wall of the placement groove (8).

4. A dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 3, characterized in that: The middle of the outer wall of the fixing ring (10) is fixedly connected to the inner ring of the bearing (11), and the outer ring of the bearing (11) is fixedly connected to the mounting groove (7).

5. The dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 3, characterized in that: The three positioning protrusions (9) are fixed to the inner wall of the fixing ring (10) in a circumferential array, and the outer wall of the fixing ring (10) is slidably connected to the inner wall of the placement groove (8).

6. The dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 1, characterized in that: One end of the sheath tube (3) is fixedly connected to the fixed sleeve (4), the sheath tube (3) is connected to a water receiving pipe (2), and a docking groove (12) is provided on the side wall of the end of the sheath tube (3) connected to the fixed sleeve (4).

7. A dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 6, characterized in that: The two ends of the telescopic spring (14) are respectively fixedly connected to two mounting plates (13), one of the mounting plates (13) is fixedly connected to the inner wall of the inner end of the docking groove (12), and the other side wall of the other mounting plate (13) is fixedly connected to a rubber ring (15), the outer diameter of the rubber ring (15) is interference fit with the inner wall of the docking groove (12), and the inner diameter of the rubber ring (15) is larger than the outer diameter of the mirror sheath (1).

8. The dual-channel spinal endoscopic minimally invasive surgery sheath according to claim 1, characterized in that: A limiting groove (16) corresponding to the fixing block (6) is formed on a side wall of one end of the fixing sleeve (4) away from the sheath tube (3); an arc-shaped moving groove (18) is formed on one side of the limiting groove (16); and a positioning groove (17) is formed on one side of the moving groove (18).

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