Ultrasonic osteotome structure for intervertebral foramen endoscope operation
Through the designable ultrasonic knife bodies and regulating cylinders, combined with the limit mechanism and damping ring, the problem of inconvenience of the ultrasonic bone knife operation during intervertebral pore mirror surgery has achieved the flexible adjustment of length and the safety improvement of operation.
Patent Information
- Application Number
- CN202420938262.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing ultrasonic bone knife is inconvenient during intervertebral foraminioscopy, difficult to penetrate deep channels, and lacks safety and flexibility in use.
An ultrasonic osteotome structure for transforaminal endoscopic surgery is designed, which uses a telescopic ultrasonic knife shaft body and an adjusting cylinder. Through the cooperation of the limiting mechanism and the damping ring, the length of the ultrasonic knife shaft body can be flexibly adjusted.
The design allows the ultrasonic knife to adjust the length according to needs, adapt to different depth channels, improves the flexibility and safety of the operation, and reduce the risk of damage to the nerve root.
Smart Images
Figure CN222383287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an ultrasonic bone knife, in particular to an ultrasonic bone knife structure for transforaminal endoscopic surgery. Background Art
[0002] Traditional bone knives use a hammer to manually strike the tail as a driving force. The force is difficult to control and often fails to penetrate the bone when the force is too small. When the force is too large, it directly breaks through the bone and damages the nerve roots deep inside. It is difficult to use and is not very safe.
[0003] Currently, in lumbar open surgery, the existing ultrasonic bone knife is used to remove bones such as vertebral lamina and articular processes. The ultrasonic bone knife is electric and has uniform force. When it breaks through the bone and touches the soft tissue during removal, it will automatically stop cutting. It is highly safe. However, although it has certain effects in open surgery, it is inconvenient to operate for perforaminal endoscopic surgery because it needs to be inserted into a relatively deep channel, and needs to be improved. Utility Model Content
[0004] The purpose of the embodiment of the utility model is to provide an ultrasonic bone knife structure for transforaminal endoscopic surgery, aiming to solve the technical problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the utility model provides the following technical solutions.
[0006] A transforaminal endoscopic surgery ultrasonic bone knife structure, comprising an ultrasonic knife rod body and an adjustment cylinder body, one end of the ultrasonic knife rod body is provided with a knife head, and the other end of the ultrasonic knife rod body is sealed and slidably extended into the adjustment cylinder body;
[0007] Among them, a fixing ring is fixedly provided at the other end of the ultrasonic knife rod body to prevent the other end of the ultrasonic knife rod body from completely escaping from the adjustment cylinder; a second limit block is also fixedly provided on the outer ring of the ultrasonic knife rod body;
[0008] The inner wall of the adjusting cylinder is also provided with an arc-shaped cavity, wherein the second limit block slides against the second limit block;
[0009] It also includes a limiting mechanism, which includes a cross bar, on which a plurality of positioning blocks are fixedly arranged at equal intervals. When the second limiting block is located between two positioning blocks, the ultrasonic knife rod body will not produce relative expansion and contraction relative to the adjusting cylinder body, and the mutual expansion and contraction length between the ultrasonic knife rod body and the adjusting cylinder body is fixed.
[0010] Furthermore, a first limiting block is fixedly provided on the outer ring of the ultrasonic knife rod body;
[0011] Limiting grooves are also respectively provided on the inner wall of the adjusting cylinder, wherein the first limiting block slides against the limiting groove. By sliding the first limiting block against the limiting groove, the rotation of the ultrasonic knife rod body relative to the adjusting cylinder can be limited.
[0012] Furthermore, the limiting mechanism also includes an operating ring, which is coaxially rotatably sleeved on the adjustment seat, and the adjustment seat is fixedly mounted on the end of the adjustment cylinder; the operating ring is coaxially supported and fixedly connected to a damping ring through a support rod, and the damping ring is rotatably sleeved on the outer ring of the end of the adjustment cylinder in a damping manner. Therefore, by manually rotating the operating ring by a certain angle relative to the adjustment seat, the damping ring will be rotated by a certain angle relative to the adjustment cylinder.
[0013] Furthermore, the cross bar is fixedly connected to the damping ring.
[0014] Furthermore, an adjustment cavity is provided in the adjustment seat, and the support rod is arranged through the adjustment cavity, so that when the operating ring rotates a certain angle relative to the adjustment seat, the adjustment cavity provides space for the movement of the support rod.
[0015] Furthermore, the outer ring of the operating ring is also provided with anti-slip protrusions to facilitate manual operation of the operating ring.
[0016] Compared with the prior art, the utility model has the following beneficial effects of the ultrasonic bone knife structure for transforaminal endoscopic surgery:
[0017] First, based on the use of a retractable bone knife structure, its length can be adjusted as needed so that it can be extended into the surgical position in the designated channel, which has the advantage of flexible use;
[0018] Second, when it is necessary to adjust the telescopic length of the ultrasonic knife rod body relative to the adjusting cylinder, it is only necessary to rotate the damping ring by a certain angle so that the second limit block leaves the area between the two adjacent positioning blocks, and then manually adjust the extended length of the ultrasonic knife rod body relative to the adjusting cylinder; when no adjustment is required, the second limit block can be placed between the two adjacent positioning blocks. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.
[0020] Figure 1 This is a structural diagram of an ultrasonic bone knife structure for transforaminal endoscopic surgery of the utility model;
[0021] Figure 2 It is a partial schematic diagram of the ultrasonic bone knife structure of the utility model transforaminal endoscopic surgery;
[0022] Figure 3 for Figure 2 A magnified schematic diagram of part A;
[0023] Figure 4 It is a schematic diagram of the structure of the limiting mechanism in the ultrasonic bone knife structure of the utility model of transforaminal endoscopic surgery;
[0024] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;
[0025] Figure 6 It is a schematic diagram of the coordination of the damping sleeve of the limiting mechanism of the utility model inside the adjusting seat.
[0026] The reference numerals are as follows:
[0027] 100, ultrasonic knife bar body; 101, fixing ring; 102, first limit block; 103, second limit block;
[0028] 200, adjusting cylinder; 201, damping ring; 202, limiting groove; 203, arc cavity;
[0029] 300, adjustment seat; 301, adjustment cavity;
[0030] 400, operating ring; 401, anti-slip protrusion; 402, support rod; 403, cross bar; 404, positioning block. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0032] In one embodiment of the utility model, an ultrasonic bone knife structure for percutaneous endoscopic lumbar disc surgery is provided. The length of the ultrasonic bone knife structure can be adjusted as needed. During percutaneous endoscopic lumbar disc surgery, the ultrasonic bone knife structure can be inserted into a relatively deep channel, which is easy to operate.
[0033] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0034] like Figure 1-Figure 3 As shown, the ultrasonic bone knife structure for transforaminal endoscopic surgery provided by the utility model includes an ultrasonic knife rod body 100 and an adjustment cylinder body 200. A knife head is arranged at one end of the ultrasonic knife rod body 100, and the other end of the ultrasonic knife rod body 100 is sealed and slidably extended into the adjustment cylinder body 200;
[0035] Among them, a fixing ring 101 is fixedly provided at the other end of the ultrasonic knife rod body 100 to prevent the other end of the ultrasonic knife rod body 100 from completely escaping from the adjustment cylinder 200; the outer ring of the ultrasonic knife rod body 100 is also fixedly provided with a first limit block 102 and a second limit block 103.
[0036] Correspondingly, such as Figure 6 As shown, in an embodiment of the utility model, a limit groove 202 and an arc-shaped cavity 203 are respectively provided on the inner wall of the adjusting cylinder 200, wherein the first limit block 102 slides against the limit groove 202, and the second limit block 103 slides against the second limit block 103; by sliding the first limit block 102 against the limit groove 202, the ultrasonic knife rod body 100 can be limited from rotating relative to the adjusting cylinder 200.
[0037] For further information, please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 In an embodiment of the utility model, the ultrasonic bone knife structure for percutaneous endoscopic lumbar disc surgery provided by the utility model also includes a limiting mechanism, which includes a cross bar 403, and a plurality of positioning blocks 404 are fixedly arranged at equal intervals on the cross bar 403. When the second limiting block 103 is located between the two positioning blocks 404, the ultrasonic knife rod body 100 will not produce relative expansion and contraction relative to the adjusting cylinder body 200, and the mutual expansion and contraction length between the ultrasonic knife rod body 100 and the adjusting cylinder body 200 is fixed.
[0038] Furthermore, the limiting mechanism also includes an operating ring 400, which is coaxially rotatably sleeved on the adjustment seat 300, and the adjustment seat 300 is fixedly installed on the end of the adjustment cylinder 200; the operating ring 400 is coaxially supported and fixedly connected with a damping ring 201 through a support rod 402, and the damping ring 201 is rotatably sleeved on the outer ring of the end of the adjustment cylinder 200 in a damping manner. Therefore, by manually rotating the operating ring 400 relative to the adjustment seat 300 by a certain angle, the damping ring 201 will be rotated by a certain angle relative to the adjustment cylinder 200.
[0039] Furthermore, the cross bar 403 and the damping ring 201 are fixedly connected.
[0040] It can be understood that in the embodiment of the utility model, since the damping ring 201 and the adjusting cylinder 200 are connected by a damping connection, that is, it is necessary to manually twist the operating ring 400 to rotate the damping ring 201 to a certain angle relative to the end of the adjusting cylinder 200. In this way, when it is necessary to adjust the telescopic length of the ultrasonic knife rod 100 relative to the adjusting cylinder 200, it is only necessary to rotate the damping ring 201 to a certain angle so that the second limit block 103 leaves the area between the two adjacent positioning blocks 404, and then manually adjust the extended length of the ultrasonic knife rod 100 relative to the adjusting cylinder 200; when no adjustment is required, the second limit block 103 can be placed between the two adjacent positioning blocks 404.
[0041] Correspondingly, such as Figure 6 As shown, an adjustment cavity 301 is provided in the adjustment seat 300 , and a support rod 402 is arranged through the adjustment cavity 301 , so that when the operating ring 400 rotates a certain angle relative to the adjustment seat 300 , the adjustment cavity 301 provides space for the movement of the support rod 402 .
[0042] Furthermore, the outer ring of the operating ring 400 is also provided with anti-slip protrusions 401 to facilitate manual operation of the operating ring 400.
[0043] The above solutions are only an illustration of a preferred example, but are not limited thereto. When implementing the present utility model, appropriate replacement and / or modification can be performed according to user needs.
[0044] The number of devices and processing scales described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.
[0045] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.
Claims
1. A transforaminal endoscopic surgery ultrasonic bone knife structure, comprising an ultrasonic knife rod body (100) and an adjustment cylinder (200), wherein a knife head is arranged at one end of the ultrasonic knife rod body (100), and characterized in that: The other end of the ultrasonic knife rod body (100) is sealed and slidably extended into the adjustment cylinder body (200); A fixing ring (101) is fixedly provided at the other end of the ultrasonic knife rod body (100); A second limiting block (103) is also fixedly provided on the outer ring of the ultrasonic knife rod body (100); An arc-shaped cavity (203) is also provided on the inner wall of the regulating cylinder (200), wherein the second limit block (103) slides against the second limit block (103); It also includes a limiting mechanism, which includes a cross bar (403), on which a plurality of positioning blocks (404) are fixedly arranged at equal intervals, and when the second limiting block (103) is located between two positioning blocks (404), the ultrasonic knife rod body (100) and the adjustment cylinder body (200) are fixed to each other.
2. The ultrasonic bone knife structure for transforaminal endoscopic surgery according to claim 1 is characterized in that: The outer ring of the ultrasonic knife rod body (100) is also fixedly provided with a first limiting block (102); Limiting grooves (202) are also respectively provided on the inner wall of the regulating cylinder (200), wherein the first limiting block (102) slides in the limiting groove (202).
3. The ultrasonic bone knife structure for transforaminal endoscopic surgery according to claim 2 is characterized in that: The limiting mechanism further comprises an operating ring (400), the operating ring (400) being coaxially rotatably sleeved on the adjusting seat (300), and the adjusting seat (300) being fixedly mounted on the end of the adjusting cylinder (200); The operating ring (400) is coaxially supported and fixedly connected with a damping ring (201) via a support rod (402); the damping ring (201) is rotatably sleeved on the outer ring of the end of the regulating cylinder (200) in a damping manner.
4. The ultrasonic bone knife structure for transforaminal endoscopic surgery according to claim 3 is characterized in that: The cross bar (403) is fixedly connected to the damping ring (201).
5. The ultrasonic bone knife structure for transforaminal endoscopic surgery according to claim 4 is characterized in that: An adjustment cavity (301) is provided in the adjustment seat (300), and the support rod (402) is arranged through the adjustment cavity (301).
6. The ultrasonic bone knife structure for transforaminal endoscopic surgery according to any one of claims 3 to 5, characterized in that: The outer ring of the operating ring (400) is also provided with anti-slip protrusions (401).