Nerve protection sleeve set for spine endoscope

Abstract

The utility model discloses a spine endoscope nerve protection sleeve group, which comprises an outer sleeve and an inner sleeve, the inner sleeve is inserted in the outer sleeve, the top end of the outer sleeve is fixedly connected with a mounting head, the side wall of the mounting head is provided with a limiting groove, the top end of the inner sleeve is fixedly connected with a limiting block, and the limiting block is fixedly connected with the mounting head. The shape of the limiting block is matched with that of the limiting groove, and the interior of the mounting head is connected with the limiting block through a clamping device. The inner sleeve, the outer sleeve, the clamping block, the push rod, the limiting block and other components are matched with one another, the outer sleeve and the inner sleeve can be quickly clamped, assembled and matched, convenience is high, meanwhile, the spinal endoscope auxiliary tool can be matched with spinal endoscope auxiliary tools of different sizes, the risk of damage to tissue and nerves is small, and a larger operation space can be provided for an operator.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a spinal endoscope nerve protection set. Background Art

[0002] At present, spinal endoscopy is the most commonly used minimally invasive method for the treatment of intervertebral disc diseases, with advantages such as definite efficacy and minimal trauma. The specific method is to enter the target site of intervertebral disc herniation through a puncture tube at the back side of the patient's waist and perform local operations.

[0003] For minimally invasive surgery, due to the limited field of view, the surgeon can only place a protective cover to prevent damage to the nerve roots, then insert an inner cannula compatible with the endoscope into the protective cover, and finally pass the endoscope and other surgical instruments through the inner cannula into the pathogenic target for treatment. However, when the protective cover and the inner cannula are assembled together, it is not convenient to quickly fix and connect them. Utility Model Content

[0004] The utility model provides a spinal endoscope nerve protection kit to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A spinal endoscope nerve protection sleeve assembly comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is inserted into the outer sleeve, the top end of the outer sleeve is fixedly connected to a mounting head, a limiting groove is provided on the side wall of the mounting head, the top end of the inner sleeve is fixedly connected to a limiting block, the shape of the limiting block is adapted to the shape of the limiting groove, and the mounting head is connected to the limiting block via a clamping device.

[0007] As a further improvement of the present technical solution: the clamping device includes a sliding channel, a sliding channel is provided on the side wall of the mounting head, a push rod is slidably connected in the sliding channel, a mounting groove is provided on the side wall of the push rod, a movable plate is slidably connected in the mounting groove, two extrusion springs are fixedly connected between the movable plate and the bottom side wall of the mounting groove, a clamping block is fixedly connected on the side wall of the movable plate, a through opening is provided on the side wall of the sliding channel, the through opening is connected to the limit groove, a clamping slot is provided on the side wall of the limit block, and one end of the clamping block extends out of the through opening and enters into the clamping slot.

[0008] As a further improvement of the technical solution: the card block is arranged in a semicircular plate shape, and the shape of the card slot is adapted to the shape of the top of the card block.

[0009] As a further improvement of the technical solution: the limit block is arranged in a T shape.

[0010] As a further improvement of the technical solution: the bottom ends of the outer sleeve and the inner sleeve are both arranged in an inclined shape.

[0011] As a further improvement of the technical solution: the length of the inner sleeve is greater than the length of the outer sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is reasonably designed and ingeniously conceived. By arranging the inner sleeve, the outer sleeve, the clamping block, the push rod, the limit block and other components to cooperate with each other, the outer sleeve and the inner sleeve can be quickly clamped and assembled, which is highly convenient.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a spinal endoscope nerve protection kit proposed by the utility model;

[0017] Figure 2 This is a schematic structural diagram of an outer sleeve in a spinal endoscope nerve protection kit proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an inner sleeve in a spinal endoscope nerve protection sleeve set proposed by the utility model;

[0019] Figure 4 This is a top plan cross-sectional structural diagram of a spinal endoscope nerve protection kit proposed by the utility model;

[0020] Figure 5 This is a side cross-sectional structural diagram of a spinal endoscope nerve protection kit proposed by the utility model;

[0021] Figure 6 for Figure 4 A is a schematic diagram of the partially enlarged structure of the middle part;

[0022] Figure 7 for Figure 5 Schematic diagram of the partial enlarged structure of B in the middle

[0023] Figure 8 It is a schematic diagram of the cross-sectional structure of the outer sleeve and the inner sleeve when they are matched with each other;

[0024] Fig. 9 It is a structural schematic diagram of the second embodiment;

[0025] Fig.10 This is a schematic cross-sectional view of the cooperation between the outer sleeve and the inner sleeve of the first connection solution in the third embodiment;

[0026] Fig.11 It is a front cross-sectional structural schematic diagram of the second connection scheme in Example 3;

[0027] Fig.12 This is a schematic diagram of the cooperation structure between the first connecting hook and the second connecting hook in the second connection scheme in Example 3.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Block; 2. Push rod; 3. Outer sleeve; 4. Inner sleeve; 5. Limiting groove; 6. Limiting block; 7. Mounting head; 8. Slot; 9. Mounting groove; 10. Sliding channel; 11. Moving plate; 12. Extrusion spring; 13. Through-hole; 14. First buckle; 15. Second buckle; 16. Strip protrusion; 17. Strip limiting groove; 18. Threaded hole; 19. First connecting hook; 20. Second connecting hook. DETAILED DESCRIPTION

[0030] Embodiment 1

[0031] See also Figures 1 to 8 In an embodiment of the utility model, a spinal endoscope nerve protection sleeve assembly includes an outer sleeve 3 and an inner sleeve 4. The inner sleeve 4 is inserted into the outer sleeve 3. The bottom ends of the outer sleeve 3 and the inner sleeve 4 are both arranged in an inclined shape to facilitate the expansion of the operating space. The length of the inner sleeve 4 is greater than the length of the outer sleeve 3. The top of the outer sleeve 3 is fixedly connected with a mounting head 7. A limiting groove 5 is provided on the side wall of the mounting head 7. The top of the inner sleeve 4 is fixedly connected with a limiting block 6. The limiting block 6 is arranged in a T shape. The shape of the limiting block 6 is adapted to the shape of the limiting groove 5. The mounting head 7 is connected to the limiting block 6 through a clamping device.

[0032] See also Figure 4 , Figure 6 and Figure 7The clamping device includes a sliding channel 10, a sliding channel 10 is provided on the side wall of the mounting head 7, a push rod 2 is slidably connected in the sliding channel 10, a mounting groove 9 is provided on the side wall of the push rod 2, a moving plate 11 is slidably connected in the mounting groove 9, two extrusion springs 12 are fixedly connected between the moving plate 11 and the bottom side wall of the mounting groove 9, a clamping block 1 is fixedly connected to the side wall of the moving plate 11, a through hole 13 is provided on the side wall of the sliding channel 10, and the through hole 13 is connected to the limiting groove 5, A slot 8 is provided on the side wall of the limit block 6, one end of the block 1 extends out of the through-opening 13 and enters into the slot 8, the block 1 is arranged in a semicircular plate shape, and the shape of the slot 8 is adapted to the shape of the top of the block 1. When the limit block 6 is located in the limit slot 5, the push rod 2 can be pushed to position the block 1 at the through-opening 13. Under the extrusion action of the extrusion spring 12, one end of the block 1 can pass through the through-opening 13 and extend into the slot 8, thereby fixing the limit block 6 in the mounting head 7.

[0033] The working principle of the utility model is:

[0034] When in use, one end of the push rod 2 can be pressed first to move the push rod 2. The movement of the push rod 2 can cause the block 1 on the push rod 2 to leave the through-port 13 and be squeezed into the installation groove 9. Then the inner sleeve 4 can be penetrated into the outer sleeve 3 until the limit block 6 enters the limit groove 5. At this time, the inner sleeve 4 can be initially limited in the outer sleeve 3, and then the push rod 2 can be pushed back to make the block 1 on the push rod 2 enter the through-port 13 position. Under the extrusion action of the extrusion spring 12, one end of the block 1 can pass through the through-port 13 and extend into the slot 8, fixing the limit block 6 in the installation head 7, and then fixing the inner sleeve 4 in the outer sleeve 3 to prevent the inner sleeve 4 from slipping out of the outer sleeve 3 during surgery.

[0035] Embodiment 2

[0036] See also Fig. 9 In some embodiments of the present application, due to the different specifications of the spinal endoscope and the different surgical scenarios, the combination and connection methods of the nerve protection set provided by the present application can be flexibly adjusted to adapt to different usage scenarios. In order to increase the operating field of intervertebral surgery, the inner tube sleeve 4 can be configured as a non-complete circle (greater than or equal to three-quarters of a circle), wherein the inner tube wall is provided with an open operating area equal to one-quarter of the inner tube circumference. See attached Fig. 9Specifically, in the existing spinal endoscope, the specifications of the outer sleeve 3 include three types, namely: specification 1 (large channel): inner diameter 4.9mm, outer diameter 5.5mm, length 230mm, specification 2 (medium channel): inner diameter 3.9mm, outer diameter 4.5mm, length 280mm, specification 3 (small channel): inner diameter 2.9mm, outer diameter 3.5mm, length 290mm. In the embodiment of the present application, each specification of the outer sleeve 3 corresponds to the inner sleeve 4 of the corresponding specification. In order to facilitate switching, the first buckle 14 and the second buckle 15 can be designed to be assembled into one, so as to flexibly adapt to outer sleeves of different diameters.

[0037] Embodiment 3

[0038] In some embodiments of the present application, when switching to use outer tube sleeves 3 of different diameters, for unskilled instrument users, frequently using the fixing device of the UT structure in Example 1 to adjust the use of outer tube sleeves of different diameters will take a lot of operation time. At the same time, when switching to use outer tube sleeves of different diameters frequently, the UT structure will be worn, which will cause loose engagement, causing the inner and outer sleeves of the spinal endoscope to become loose during use, affecting the normal use of the operator. Therefore, it is necessary to improve the combination of the inner and outer sleeves to quickly fix the inner and outer sleeves and avoid loosening of the inner sleeve due to wear.

[0039] For the above improvements, this application provides 2 connection solutions:

[0040] 1) Please refer to Fig.10 By setting a strip-shaped limiting groove 17 in the inner wall of the outer sleeve 3 and setting a strip-shaped protrusion 16 on the outer wall of the inner sleeve 4 to be inserted into the strip-shaped limiting groove 17, it can ensure that the inner sleeve 4 and the outer sleeve 3 are quickly fixed, and it can also ensure that the inner sleeve will not shake when operating tools such as spinal cord nuclear forceps, thereby affecting the operation of the operator.

[0041] 2) Please refer to Figure 11-12 , the tail connection hook is quickly connected, and then the bolt is inserted

[0042] Specifically, the first connecting hook 19 at the tail of the outer sleeve 3 and the second connecting hook 20 at the tail of the inner sleeve 4 have the same structure and are adapted to the corresponding sleeves in size. When in use, the operator can connect the inner sleeve 3 and the outer sleeve 4 through the first connecting hook 19 and the second connecting hook 20 at the tail. At the same time, in order to ensure the stability of the inner sleeve 4 during the operation, the shaking range of the inner sleeve 4 can be controlled by inserting bolts into the threaded holes 18 communicating with the first connecting hook 19 and the second connecting hook 20.

[0043] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A spinal endoscope nerve protection kit, comprising an outer sleeve (3) and an inner sleeve (4), characterized in that: The inner sleeve (4) is inserted into the outer sleeve (3); the top end of the outer sleeve (3) is fixedly connected to a mounting head (7); a limiting groove (5) is provided on the side wall of the mounting head (7); the top end of the inner sleeve (4) is fixedly connected to a limiting block (6); the shape of the limiting block (6) matches the shape of the limiting groove (5); the mounting head (7) is connected to the limiting block (6) via a clamping device; the clamping device comprises a sliding channel (10); a sliding channel (10) is provided on the side wall of the mounting head (7); a push rod (2) is slidably connected in the sliding channel (10); A mounting groove (9) is provided on the side wall of the push rod (2), a movable plate (11) is slidably connected in the mounting groove (9), two extrusion springs (12) are fixedly connected between the movable plate (11) and the bottom side wall of the mounting groove (9), a clamping block (1) is fixedly connected to the side wall of the movable plate (11), a through opening (13) is provided on the side wall of the sliding channel (10), the through opening (13) is connected to the limiting groove (5), a clamping groove (8) is provided on the side wall of the limiting block (6), and one end of the clamping block (1) extends out of the through opening (13) and enters into the clamping groove (8).

2. A spinal endoscope nerve protection kit according to claim 1, characterized in that: The card block (1) is arranged in a semicircular plate shape, and the shape of the card slot (8) is adapted to the shape of the top of the card block (1).

3. A spinal endoscope nerve protection kit according to claim 2, characterized in that: The limiting block (6) is arranged in a T shape.

4. The spinal endoscope nerve protection kit according to claim 1, characterized in that: The bottom ends of the outer sleeve (3) and the inner sleeve (4) are both arranged in an inclined shape.

5. The spinal endoscope nerve protection kit according to claim 1, characterized in that: The length of the inner sleeve (4) is greater than the length of the outer sleeve (3).

Images