A detachable spinal endoscope working sleeve

Abstract

A detachable spinal endoscope working sleeve includes an outer tube and an inner tube that can be inserted into the outer tube; the outer tube includes a first tube body, one end of the first tube body is an insertion end, and the other end is sleeved with a positioning piece; the inner tube includes a second tube body, the second tube body can be inserted into the first tube body, and a plug-in piece is provided on the outer side surface of one end of the second tube body, and the plug-in piece can be plugged with the positioning piece; and the inner tube after plugging cannot move relative to the outer tube on a plane perpendicular to the length direction of the first tube body. Different from the existing structure, the inner tube provided in this device is fixed in position and cannot move laterally after being inserted into the outer tube, so it has strong stability and can ensure the constant position of the inner tube under non-artificial conditions, and the above-mentioned plug-in method is very convenient and easy to learn when separating and combining the inner tube and the outer tube.

Description

Technical Field

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

[0002] Currently, more and more minimally invasive spinal surgeries are performed with the help of endoscopes. Among them, the V-shaped double-channel spinal endoscope system (VBE) is the world's first single-hole double-channel non-coaxial spinal endoscope. It is a spinal endoscope technology that can be used in both air and water media. It is the first single-hole double-channel non-coaxial spinal endoscope technology concept.

[0003] This technology is different from the current single-hole single-channel coaxial spinal endoscope and double-hole double-channel spinal endoscope technology, and represents an innovative spinal endoscopy working concept.

[0004] However, the current VBE working channel has certain instability when using operating instruments, and the inner tube without a limit is prone to displacement during use. Utility Model Content

[0005] In order to solve the problems in the above-mentioned background technology, the utility model provides a detachable spinal endoscope working sleeve.

[0006] The technical solution of this utility model is as follows:

[0007] A detachable spinal endoscope working sleeve comprises an outer tube and an inner tube capable of being inserted into the outer tube;

[0008] The outer tube comprises a first tube body, one end of which is an insertion end, and the other end of which is sleeved with a positioning piece;

[0009] The inner tube comprises a second tube body, the second tube body can be inserted into the first tube body, and a plug-in piece is provided on the outer side of one end of the second tube body, and the plug-in piece can be plugged with the positioning piece;

[0010] Furthermore, the inner tube after insertion cannot move relative to the outer tube on a plane perpendicular to the length direction of the first tube body.

[0011] Different from the existing structure, after the inner tube is inserted into the outer tube, its position is fixed and cannot move laterally, so it has strong stability.

[0012] The plugging direction of the inner tube relative to the outer tube is such that the plugging direction of the plug-in component relative to the positioning component is parallel to the length direction of the first tube body.

[0013] As a preferred solution, the length of the second tube body is shorter than that of the first tube body.

[0014] The above-mentioned plug-in connection is achieved in that the positioning member is provided with a plug hole that cooperates with the plug connector, and the direction of the plug hole is parallel to the length direction of the first tube body and is not connected to the first tube body.

[0015] In order to ensure the stability of the plug-in structure, the outer side surface of the plug-in component is tightly attached to the inner side surface of the plug-in hole in the circumferential direction.

[0016] In order to improve the stability of the second tube after insertion, the outer side of the second tube can abut against the inner side of the first tube after the plug is inserted into the plug hole. The second tube is more stable through the abutment and fixation of the two structures.

[0017] In order to avoid interference of the plug-in connector, the minimum distance between the plug-in connector and the inner side surface of the first tube body is the same as the minimum distance between the plug-in connector and the inner side surface of the second tube body.

[0018] As a preferred solution, the end of the connector close to the first tube body does not extend outward relative to the insertion hole, so as to avoid the impact caused by extending out of the insertion hole.

[0019] In order to facilitate the use of the outer tube, the positioning member includes a connecting portion sleeved on the outside of the first tube body, and the connecting portion is also provided with a clamping portion.

[0020] The specific structure of the clamping part is that the clamping part includes a horizontal clamping part and a vertical clamping part. It is convenient to clamp horizontally or vertically.

[0021] The beneficial effects of the utility model are as follows: the utility model is a detachable spinal endoscope working sleeve, in which an outer tube is provided to provide a movable space for an inner tube, and the inner tube matched with the outer tube can be positioned after being plugged in with the outer tube to avoid unstable movement, and at the same time, the first tube body and the second tube body are connected in a resistance manner, so that the stability after the plugging can be improved, thereby ensuring the stable progress of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0023] In the attached picture:

[0024] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the front view structure of the outer tube of the utility model;

[0027] Figure 4 This is a schematic diagram of the top view of the outer tube structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the front view structure of the inner tube of the utility model;

[0029] Figure 6 This is a schematic diagram of the top view of the inner tube structure of the utility model;

[0030] The components represented by the reference numerals in the figure are:

[0031] 1. Outer tube; 11. Positioning piece; 111. Connecting part; 112. Horizontal clamping part; 113. Vertical clamping part; 114. Insertion hole; 12. First tube body; 2. Inner tube; 21. Connector; 22. Second tube body. DETAILED DESCRIPTION

[0032] like Figure 1 , 2 A detachable spinal endoscope working sleeve as shown, comprising Figure 3 , 4 The outer tube 1 shown and the outer tube 1 can be inserted into the outer tube 1 Figure 5 , 6 The inner tube 2 shown in the conventional structure can only be inserted into the outer tube 1, and is limited by the diameter of the inner tube 2, so the inner tube 2 cannot be fixed in the outer tube 1, that is, the inner tube 2 will move freely after being inserted into the outer tube 1, and its stability depends entirely on the grip of the staff. Therefore, when the inner tube 2 needs to be relatively fixed relative to the outer tube 1, it is difficult, and in view of this situation, the specific design of the device is as follows:

[0033] First, if Figure 3 , 4 As shown, the outer tube 1 includes a first tube body 12, which is a long tube and is made of medical stainless steel. One end of the first tube body 12 is an insertion end, which is sharp and can be inserted into the human body. The other end is sleeved with a positioning piece 11. The positioning piece 11 has a larger diameter than the first tube body 12, so it can prevent the first tube body 12 from being completely inserted into the human body. The positioning piece 11 is also made of medical stainless steel and is integrally formed with the first tube body 12.

[0034] In order to facilitate the operation and use of the outer tube 1, the positioning member 11 includes a connecting portion 111 that is sleeved on the outside of the first tube body 12. The connecting portion 111 is also provided with a clamping portion, which can be held by a staff member, so that the outer tube 1 can be easily plugged in and out. In addition, the connecting portion 111 and the clamping portion need to be chamfered at the sharp portion to avoid damage to the human body caused by the sharp position.

[0035] And for the use case, such as Figure 3 , 4 As shown, the specific structure of the clamping part is that the clamping part includes a horizontal clamping part 112 and a vertical clamping part 113. The horizontal clamping part 112 is more convenient to use when plugging and unplugging the outer tube 1, and when the outer tube 1 needs to be rotated, it can be achieved through the vertical clamping part 113, and when the horizontal clamping part 112 and the vertical clamping part 113 are used at the same time, the staff will be more stable and easy to operate when holding the outer tube 1.

[0036] Afterwards, Figure 5 , 6 As shown, an inner tube 2 is required, and the inner tube 2 includes a second tube body 22. It should be noted that the length of the second tube body 22 is smaller than the first tube body 12. Therefore, after the inner tube 2 is inserted into the outer tube 1, it will not extend relative to the outer tube 1. Figure 1 As shown, it is located inside the outer tube 1, and the diameter of the second tube 22 is also smaller than the diameter of the first tube 12. Figure 1 shown.

[0037] Therefore, the second tube body 22 can be inserted into the first tube body 12. After that, only the two tube bodies with a large diameter difference can not be stably fixed. Therefore, the key point is that the outer side surface of one end of the second tube body 22 is provided with a plug-in piece 21, and the plug-in piece 21 can be plugged with the positioning piece 11, that is, Figure 1 As shown, the inner tube 2 and the outer tube 1 are used in combination.

[0038] And if Figure 1 , 2 As shown, the above-mentioned plug-in connection is achieved in that the positioning member 11 is provided with a plug hole 114 which is arranged in cooperation with the plug connector 21. The plug hole 114 is arranged at the connecting portion 111 and cannot be too far away from the first tube body 12. It should be noted that the direction of the plug hole 114 is parallel to the length direction of the first tube body 12 and is not connected to the first tube body 12. Therefore, when in use, after the outer tube 1 is inserted into the human body, the inner tube 2 can be inserted into the outer tube 1 from the length direction of the first tube body 12, that is, the plug-in direction of the inner tube 2 relative to the outer tube 1 is parallel to the length direction of the first tube body 12, and after using the above-mentioned plug-in method, the plugged-in inner tube 2 cannot move relative to the outer tube 1 on a plane perpendicular to the length direction of the first tube body 12, that is, once the plug-in is completed, the inner tube 2 cannot move horizontally, thereby ensuring the stability after the connection. In addition to the above-mentioned direction, the inclined insertion method can also achieve the technical effect of being unable to move horizontally, but in actual application, due to the influence of the oblique insertion angle problem, the operation is relatively inconvenient, so it is far better to directly choose the vertical plug-in method.

[0039] In some cases, the outer tube 1 needs to be inserted into the positioning member 11 to contact the human body. In order to avoid the influence of the plug connector 21 on this situation after insertion, the end of the plug connector 21 close to the first tube body 12 does not extend outward relative to the insertion hole 114. This can avoid the influence caused by extending out of the insertion hole 114.

[0040] Then, based on the above structure, in order to ensure the stability of the plug-in structure, the outer side surface of the plug-in component 21 is circumferentially close to the inner side surface of the plug hole 114. Limited by the thickness of the positioning component 11, the plug-in length of the above plug-in component 21 will not be very large, so for further stability considerations, the first tube body 12 and the second tube body 22 need to be in close contact with each other.

[0041] like Figure 1 As shown, in order to improve the stability of the second tube body 22 after insertion, the outer side of the second tube body 22 can abut against the inner side of the first tube body 12 after the plug 21 is inserted into the insertion hole 114. The second tube body 22 is more stably fixed by the two structures.

[0042] With respect to the above structure, if the second tube body 22 is selected to be in close contact with the inner wall of the first tube body 12 away from the insertion hole 114, the length of the above-mentioned plug connector 21 will be greater, so it will cause a certain shielding effect on the first tube body 12. In order to avoid interference from the plug connector 21, the minimum distance between the insertion hole 114 and the inner side of the first tube body 12 is the same as the minimum distance between the plug connector 21 and the inner side of the second tube body 22. That is to say, Figure 1 , 2 As shown, the second tube body 22 can be in close contact with the first tube body 12 at a position close to the insertion hole 114 .

[0043] Therefore, the above structure can be used to achieve that, unlike the existing structure, after the inner tube 2 is inserted into the outer tube 1, its position is fixed and cannot move laterally, so it has strong stability, and the stability can be obtained only by aligning the insertion hole 114 during insertion.

Claims

1. A detachable spinal endoscope working sleeve, characterized in that: It comprises an outer tube (1) and an inner tube (2) which can be inserted into the outer tube (1); The outer tube (1) comprises a first tube body (12), one end of the first tube body (12) is an insertion end, and the other end is sleeved with a positioning piece (11); The inner tube (2) comprises a second tube body (22), the second tube body (22) can be inserted into the first tube body (12), and a plug-in connector (21) is provided on the outer side surface of one end of the second tube body (22), and the plug-in connector (21) can be plugged into the positioning member (11); Furthermore, after the insertion, the inner tube (2) cannot move relative to the outer tube (1) on a plane perpendicular to the length direction of the first tube body (12).

2. A detachable spinal endoscope working sleeve according to claim 1, characterized in that: The plugging direction of the plug-in component (21) relative to the positioning component (11) is parallel to the length direction of the first tube body (12).

3. The detachable spinal endoscope working sleeve according to claim 1, characterized in that: The second tube (22) is shorter than the first tube (12).

4. The detachable spinal endoscope working sleeve according to claim 2, characterized in that: The positioning member (11) is provided with a plug hole (114) which is arranged in cooperation with the plug connector (21); the direction of the plug hole (114) is parallel to the length direction of the first tube body (12) and is not connected to the first tube body (12).

5. The detachable spinal endoscope working sleeve according to claim 4, characterized in that: The outer side surface of the plug connector (21) is in close contact with the inner side surface of the plug hole (114) in the circumferential direction.

6. The detachable spinal endoscope working sleeve according to claim 5, characterized in that: The outer side surface of the second tube body (22) can abut against the inner side surface of the first tube body (12) after the plug-in connector (21) is inserted into the insertion hole (114).

7. The detachable spinal endoscope working sleeve according to claim 6, characterized in that: The minimum distance between the insertion hole (114) and the inner side surface of the first tube body (12) is the same as the minimum distance between the plug-in component (21) and the inner side surface of the second tube body (22).

8. The detachable spinal endoscope working sleeve according to claim 4, characterized in that: One end of the plug connector (21) close to the first tube body (12) does not extend outward relative to the plug hole (114).

9. The detachable spinal endoscope working sleeve according to claim 1, characterized in that: The positioning member (11) comprises a connecting portion (111) sleeved on the outside of the first tube body (12), and the connecting portion (111) is also provided with a clamping portion.

10. The detachable spinal endoscope working sleeve according to claim 9, characterized in that: The clamping portion comprises a horizontal clamping portion (112) and a vertical clamping portion (113).

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