A depth limiting device for a spinal UBE and OSE technology endoscope

Abstract

This utility model discloses a depth-limiting device for spinal UBE and OSE techniques, belonging to the field of spinal endoscopy technology. It includes a depth-limiting base, a clamping mechanism to prevent the spinal endoscope from sliding up and down relative to the working sleeve of the endoscope, and a clamping mechanism to prevent the working sleeve of the endoscope from sliding up and down relative to the depth-limiting base. The depth-limiting base includes a support ring, a hollow rod disposed inside the support ring, and multiple working arms. The first end of each working arm is connected to the support ring, and the second end is connected to the hollow rod. A channel for surgical instruments is formed between adjacent working arms. It also includes a water control valve, which is movably fitted onto the outside of the hollow rod. This utility model controls the water flow rate by adjusting the position of the water control valve. The bottom surface of the water control valve, which cooperates with the working arm, blocks the incision, preventing excessively rapid saline outflow, thereby stabilizing water pressure and maintaining a clear endoscopic view.

Description

Technical Field

[0001] This utility model belongs to the field of spinal endoscopy technology, specifically relating to a spinal UBE and OSE endoscopic depth limiting device. Background Technology

[0002] In spinal endoscopic surgery, the working cannula is used to push aside the surrounding soft tissue to further expose the surgical field for endoscopic manipulation. The spinal endoscope's instrument channel, camera system, light source system, and water inlet / outlet channels are long rod-shaped coaxial structures. During the operation, the endoscope tube extends along the working cannula into the cannula opening. Throughout the entire surgical process, the spinal endoscope needs the working cannula as a fulcrum and protective sheath to complete the safe and precise operation of the endoscopic instruments. However, in current surgeries, the working cannula is held by the surgeon or assistant, especially the surgeon. A single surgery often takes 1-2 hours or longer. During the precise operation under endoscopy, holding the working cannula and avoiding excessive depth that could damage nerve structures is an extreme challenge to both the surgeon and the assistant in terms of physical strength and endurance. Excessive fatigue can easily cause the working cannula to slip uncontrollably into the deeper layers, posing a potentially huge risk to the spinal cord and nerve roots in front of the cannula opening.

[0003] Therefore, there is a need for a spinal endoscope manipulation and depth limiting device that can overcome the shortcomings of the above-mentioned endoscopic techniques, such as the Chinese utility model patent with application number 202411048227.3 entitled "A Spinal Endoscope OSE Technology Depth Limiting and Tissue Retraction Device", which enables the endoscope to be inserted into the spinal endoscope working sleeve and the surgical instruments to be inserted into the channel without interfering with subsequent surgical actions, thus ensuring the smooth completion of the surgery.

[0004] However, due to the channels between the working arms, the brine flows out too quickly, which cannot stabilize the water pressure and maintain a clear field of view under the microscope. Utility Model Content

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A depth-limiting device for spinal UBE and OSE technologies includes: a depth-limiting base, a clamping mechanism for preventing the spinal endoscope from sliding up and down relative to the working sleeve of the endoscope, and a clamping mechanism for preventing the working sleeve of the spinal endoscope from sliding up and down relative to the depth-limiting base. The depth-limiting base includes: a support ring, a hollow rod disposed inside the support ring, and multiple working arms. The first end of each of the multiple working arms is connected to the support ring, and the second end of each is connected to the hollow rod. A channel for surgical instruments to pass through is formed between two adjacent working arms. The device also includes:

[0007] A water control valve is movably sleeved on the outside of the hollow rod and is configured to cooperate with the bottom of the depth-limiting base to control the water flow.

[0008] Furthermore, a notch is provided on the support ring, and multiple working arms are evenly distributed along the rest of the support ring except for the notch.

[0009] Furthermore, the water control valve includes:

[0010] A water control valve sleeve is fitted over the outside of the hollow rod;

[0011] A cover plate has a through hole at its center that mates with the water control valve sleeve. The cover plate is fitted onto the lower end of the water control valve sleeve and is fixedly connected to it. The cover plate has a first groove that mates with the notch. The remaining portion of the cover plate has multiple second grooves and multiple protrusions alternately arranged. The multiple second grooves mate with multiple working arms, and the multiple protrusions mate with multiple channels. The outer surfaces of the multiple protrusions and the multiple working arms are located on the same spherical surface.

[0012] Furthermore, the water control valve sleeve is integrally formed with the cover plate.

[0013] Furthermore, the working arm is provided with three arms, which are evenly distributed along the rest of the support ring except for the notch, and the notch of the support ring forms a 120° fan shape with the two adjacent working arms.

[0014] Furthermore, the endoscope tube of the spinal endoscope is fixed to the spinal endoscope working sleeve, the spinal endoscope working sleeve is fixed to the hollow rod, and the hollow rod is fixed to the water control valve sleeve by elastic fasteners.

[0015] Furthermore, the elastic fastener includes:

[0016] shell;

[0017] A button, movably disposed on the housing, wherein a limiting ring is provided on the button and the limiting ring is located inside the housing;

[0018] A lever is disposed inside the housing and is rotatably connected to the housing via a pivot. The first end of the lever abuts against the button, and a return spring is connected between the second end and the housing.

[0019] A limiting plate is disposed inside the outer shell and is correspondingly disposed to the first end of the lever.

[0020] Beneficial effects:

[0021] This invention incorporates a water control valve. By adjusting the position of the water control valve, the flow rate of the water can be controlled. When the water control valve is moved to the bottom, the bottom surface of the water control valve, which cooperates with the working arm, blocks the cut, preventing the brine from flowing out too quickly, thereby stabilizing the water pressure and maintaining a clear field of view under the microscope. When the water control valve is raised to the top, the brine can flow out from the channel.

[0022] This utility model has a notch on one side, which facilitates operation within the notch and also helps to further control and stabilize the device on the horizontal plane.

[0023] This invention uses an elastic fixing element, which is simple, convenient, and easy for the operator to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the spinal UBE and OSE endoscopic depth limiting device of this utility model;

[0025] Figure 2 This diagram illustrates the interaction between the depth-limiting base and the water control valve of the spinal UBE and OSE endoscopic depth-limiting device of this utility model. Figure 1 ;

[0026] Figure 3 This diagram illustrates the interaction between the depth-limiting base and the water control valve of the spinal UBE and OSE endoscopic depth-limiting device of this utility model. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the depth-limiting base of the spinal UBE and OSE endoscopic depth-limiting device of this utility model;

[0028] Figure 5 This is a schematic diagram of the water control valve of the spinal UBE and OSE technology endoscopic depth limiting device of this utility model;

[0029] Figure 6 This is a schematic diagram showing the released button state of the spinal UBE and OSE endoscopic depth limiting device of this utility model.

[0030] Figure 7 This is a schematic diagram showing the pressed button state of the spinal UBE and OSE endoscopic depth limiting device of this utility model.

[0031] Among them, 1. Spinal endoscope; 2. Spinal endoscope working sleeve; 3. Hollow rod; 4. Water control valve sleeve; 5. Elastic fastener; 51. Button; 52. Lever; 53. Return spring; 54. Limiting plate; 6. First groove; 7. Second groove; 8. Protrusion; 9. Cover plate; 10. Support ring; 11. Working arm. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Example 1

[0038] refer to Figures 1-7 A depth-limiting device for spinal UBE and OSE technologies includes: a depth-limiting base, a clamping mechanism for preventing the spinal endoscope 1 from sliding up and down relative to the working sleeve of the endoscope, and a clamping mechanism for preventing the working sleeve of the spinal endoscope 2 from sliding up and down relative to the depth-limiting base. The depth-limiting base includes: a support ring 10, a hollow rod 3 disposed inside the support ring 10, and multiple working arms 11. The first end of each of the multiple working arms 11 is connected to the support ring 10, and the second end of each is connected to the hollow rod 3. A channel for surgical instruments to pass through is formed between two adjacent working arms 11. The device also includes:

[0039] A water control valve is movably fitted onto the outside of the hollow rod 3. The water control valve is configured to cooperate with the bottom of the depth-limiting base to control the water flow.

[0040] In this embodiment, a notch is provided on the support ring 10, and multiple working arms 11 are evenly distributed along the rest of the support ring 10 except for the notch.

[0041] This utility model has a notch on one side, which facilitates operation within the notch and also helps to further control and stabilize the device on the horizontal plane.

[0042] In this embodiment, the water control valve includes:

[0043] Water control valve sleeve 4 is fitted onto the outside of hollow rod 3;

[0044] The cover plate 9 has a through hole at its center that mates with the water control valve sleeve 4. The cover plate 9 is fitted onto the lower end of the water control valve sleeve 4 and is fixedly connected to it. The cover plate 9 has a first groove 6 that mates with the notch. The remaining part of the cover plate 9 has multiple second grooves 7 and multiple protrusions 8 alternately arranged. The multiple second grooves 7 mate with multiple working arms 11, and the multiple protrusions 8 mate with multiple channels. The outer surfaces of the multiple protrusions 8 and the multiple working arms 11 are located on the same spherical surface.

[0045] This invention incorporates a water control valve. By adjusting the position of the water control valve, the flow rate of the water can be controlled. When the water control valve is moved to the bottom, the bottom surface of the water control valve, which cooperates with the working arm, blocks the cut, preventing the brine from flowing out too quickly, thereby stabilizing the water pressure and maintaining a clear field of view under the microscope. When the water control valve is raised to the top, the brine can flow out from the channel.

[0046] In this embodiment, the water control valve sleeve 4 and the cover plate 9 are integrally formed.

[0047] Preferably, there are 3 working arms 11, which are evenly distributed along the rest of the support ring 10 except for the notch, and the notch of the support ring 10 forms a 120° fan shape with the two adjacent working arms 11.

[0048] In other embodiments, four working arms 11 are evenly distributed along the remaining portion of the support ring 10, and the notch of the support ring 10 forms a 90° fan shape with the two adjacent working arms 11.

[0049] Example 2

[0050] To facilitate the operator's operation, this embodiment has been further modified based on embodiment 1.

[0051] In this embodiment, the endoscope tube of the spinal endoscope 1 is fixed to the spinal endoscope working sleeve 2, the spinal endoscope working sleeve 2 is fixed to the hollow rod 3, and the hollow rod 3 is fixed to the water control valve sleeve 4 by elastic fasteners 5.

[0052] In this embodiment, the elastic fastener 5 includes:

[0053] shell;

[0054] Button 51 is movably disposed on the housing, and a limit ring is provided on button 51, the limit ring being located inside the housing;

[0055] Lever 52 is located inside the housing. Lever 52 is rotatably connected to the housing via a pivot. The first end of lever 52 abuts against button 51, and a return spring 53 is connected between the second end and the housing.

[0056] Limiting plate 54 is disposed inside the housing and is disposed corresponding to the first end of lever 52.

[0057] This invention uses an elastic fixing element, which is simple, convenient, and easy for the operator to use.

[0058] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A Spine UBE and OSE endoscopic depth limiting device comprising: A depth-limiting base, a clamping mechanism for preventing the spinal endoscope from sliding up and down relative to the working cannula of the endoscope, and a clamping mechanism for preventing the working cannula of the spinal endoscope from sliding up and down relative to the depth-limiting base, wherein the depth-limiting base includes: a support ring, a hollow rod disposed inside the support ring, and multiple working arms, the first end of each of the multiple working arms being connected to the support ring, and the second end of each of the multiple working arms being connected to the hollow rod, with a channel for surgical instruments to pass through formed between two adjacent working arms, characterized in that it further includes: A water control valve is movably sleeved on the outside of the hollow rod and is configured to cooperate with the bottom of the depth-limiting base to control the water flow.

2. The UBE and OSE endoscopic depth limiting device for spinal column according to claim 1, wherein, The support ring has a notch, and the multiple working arms are evenly distributed along the rest of the support ring except for the notch.

3. The UBE and OSE endoscopic depth limiting device of claim 2, wherein, The water control valve includes: A water control valve sleeve is fitted over the outside of the hollow rod; A cover plate has a through hole at its center that mates with the water control valve sleeve. The cover plate is fitted onto the lower end of the water control valve sleeve and is fixedly connected to it. The cover plate has a first groove that mates with the notch. The remaining portion of the cover plate has multiple second grooves and multiple protrusions alternately arranged. The multiple second grooves mate with multiple working arms, and the multiple protrusions mate with multiple channels. The outer surfaces of the multiple protrusions and the multiple working arms are located on the same spherical surface.

4. The UBE and OSE endoscopic depth limiting device of claim 3, wherein, The water control valve sleeve is integrally formed with the cover plate.

5. The UBE and OSE endoscopic depth limiting device of claim 3, wherein, The working arm is provided with three arms, which are evenly distributed along the support ring except for the notch. The notch of the support ring and the two adjacent working arms form a 120° fan shape.

6. The endoscopic depth limiting device for spinal UBE and OSE techniques according to claim 3, characterized in that, The endoscope tube of the spinal endoscope is fixed to the spinal endoscope working sleeve, the spinal endoscope working sleeve is fixed to the hollow rod, and the hollow rod is fixed to the water control valve sleeve by elastic fasteners.

7. The endoscopic depth limiting device for spinal UBE and OSE techniques according to claim 6, characterized in that, The elastic fastener includes: shell; A button, movably disposed on the housing, wherein a limiting ring is provided on the button and the limiting ring is located inside the housing; A lever is disposed inside the housing and is rotatably connected to the housing via a pivot. The first end of the lever abuts against the button, and a return spring is connected between the second end and the housing. A limiting plate is disposed inside the outer shell and is correspondingly disposed to the first end of the lever.

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