UBE spine minimally invasive surgery retractor

Abstract

The utility model discloses a UBE spine minimally invasive surgery retractor which comprises a long distraction blade, a short distraction blade and a torque spring, semicircular grooves are formed in the inner side of the long distraction blade and the inner side of the short distraction blade, and the grooves are instrument channels. The extending ends of the two ends of the torque spring penetrate into the first spring connecting hole and the second spring connecting hole to be connected with the corresponding long distraction blade and the corresponding short distraction blade. The long distraction blade, the short distraction blade and the torque spring are arranged, the first semicircular groove and the second semicircular groove are formed in the inner side of the long distraction blade and the inner side of the short distraction blade and serve as instrument channels, the front end of the long distraction blade is bent, the long distraction blade is provided with the penetrating head, the head of the long distraction blade is passivated, and the long distraction blade is used for entering a surgical site. The front ends and the rear ends of the short distraction blades are bent by 90 degrees, distraction is facilitated, the torque spring is provided with a bent structure, distraction force is increased, the distraction force can be stable through the arranged torque spring, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and specifically relates to a UBE spinal minimally invasive surgery retractor. Background Technique

[0002] With the aging of the population and the increase in spine-related diseases, the demand for spine surgery is also increasing day by day. Spine surgery is a complex surgical procedure that requires sufficient exposure of the surgical field of view to ensure the accuracy and safety of the surgery. The UBE spinal minimally invasive surgery technology is a surgical method aimed at reducing surgical trauma and recovery time. In UBE spinal minimally invasive surgery, instruments can be introduced through small incisions or punctures, reducing damage to surrounding tissues and shortening the postoperative recovery time. Therefore, the development of a UBE spinal minimally invasive retractor can better meet the needs of UBE spinal minimally invasive surgery and improve the surgical effect and the postoperative recovery of patients.

[0003] Currently, existing medical devices cannot establish a stable surgical channel during UBE spinal minimally invasive surgery. The instruments during the surgery will obstruct the field of view and are inconvenient to operate, thus affecting subsequent surgical operations. For this reason, the utility model provides a UBE spinal minimally invasive surgery retractor, and solves the above problems through defining structures such as long spreading blades, short spreading blades and torsion springs. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a UBE spinal minimally invasive surgery retractor, which solves the above problems.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: a UBE spinal minimally invasive surgery retractor, including a long spreading blade, a short spreading blade and a torsion spring. A penetrating head is provided at the top of the long spreading blade, and a first spring connection hole is provided at the bottom of the side of the bending part of the long spreading blade. A second spring connection hole is provided at the bending part of the rear end of the short spreading blade;

[0006] The front end of the long spreading blade is bent, the rear end of the long spreading blade is bent by 90°, and both the front end and the rear end of the short spreading blade are bent;

[0007] The extending ends at both ends of the torsion spring penetrate into the first spring connection hole and the second spring connection hole to be connected with the corresponding long spreading blade and short spreading blade, and the connection parts are welded and fixed. The extending sections at both ends of the torsion spring are bent.

[0008] Preferably, a first semi-circular groove and a second semi-circular groove are respectively provided on the inner sides of the long spreading blade and the short spreading blade, and both the first semi-circular groove and the second semi-circular groove are instrument channels.

[0009] Preferably, the torque spring is bent twice, with two bending parts. The one closer to the torque spring is the first bending part, and the one farther from the torque spring is the second bending part.

[0010] Preferably, the bending arcs of the first bending part and the second bending part are 45°.

[0011] Preferably, the penetration head at the front end of the long spreading blade is passivated.

[0012] Preferably, the bending arc of the penetration head at the front end of the long spreading blade is 60°.

[0013] Preferably, the long spreading blade and the short spreading blade are relatively parallel.

[0014] Advantages

[0015] The present utility model provides a UBE spinal minimally invasive surgery retractor. Compared with the prior art, it has the following advantages:

[0016] (1) By setting the long spreading blade, the short spreading blade and the torque spring, semi-circular grooves I and II are provided on the inner sides of the long spreading blade and the short spreading blade. The semi-circular grooves I and II are instrument channels. The front end of the long spreading blade is bent and provided with a penetration head, and the head is passivated for entering the surgical site. The front end and the rear end of the short spreading blade are both bent 90° for easy spreading. The torque spring is provided with a bending structure to increase the spreading force. The torque spring can make the spreading force stable and the operation convenient.

[0017] (2) In the natural state, the long spreading blade and the short spreading blade are tubular after being closed and inserted into the surgical site, thus establishing a stable surgical channel for the instrument to enter the lumen. When the surgical field of view is narrow, the elastic action of the torque spring can control the opening of the long spreading blade and the short spreading blade, thereby expanding the surgical channel, improving the surgical field of view and facilitating subsequent surgical operations. Description of the Drawings

[0018] Figure 1 is the external three-dimensional structure diagram of the present utility model;

[0019] Figure 2 is the schematic diagram of the semi-circular groove I and the semi-circular groove II of the present utility model;

[0020] Figure 3 is the schematic diagram of the spring connection hole I and the spring connection hole II of the present utility model;

[0021] Figure 4 is the schematic diagram of the first bending part and the second bending part of the present utility model.

[0022] In the figure: 1. Long spreading blade; 2. Short spreading blade; 3. Torque spring; 4. Insertion head; 5. First spring connection hole; 6. Second spring connection hole; 7. First semi-circular groove; 8. Second semi-circular groove; 9. First bending part; 10. Second bending part. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-4 , a UBE spinal minimally invasive surgery retractor, including a long spreading blade 1, a short spreading blade 2 and a torque spring 3. The outer surfaces of the long spreading blade 1, the short spreading blade 2 and the torque spring 3 are made of high-quality stainless steel materials and are polished on the surface, having good smoothness and corrosion resistance functions. An insertion head 4 is provided at the top of the long spreading blade 1. By passivating the long spreading blade 1 and the insertion head 4, it can be easily inserted into the surgical site to improve the surgical efficiency. A first spring connection hole 5 is provided at the bottom of the side of the bending part of the long spreading blade 1, and a second spring connection hole 6 is provided at the bending part of the rear end of the short spreading blade 2. The front end of the long spreading blade 1 is bent, and the rear end of the long spreading blade 1 is bent 90°. The front end and the rear end of the short spreading blade 2 are both bent 90°. By bending the rear end of the long spreading blade 1 by 90° and the rear end of the short spreading blade 2 by 90°, it can effectively prevent the skin and flesh tissues at the minimally invasive wound from adhering to the instrument and improve the working efficiency of the instrument. The two end extension parts of the torque spring 3 are inserted into the first spring connection hole 5 and the second spring connection hole 6 and are connected to the corresponding long spreading blade 1 and short spreading blade 2, and the connection parts are fixed by welding. The two end extension segments of the torque spring 3 are bent.

[0026] Embodiment 2:

[0027] Please refer to Figures 1-4, this embodiment provides a technical solution based on Embodiment 1: A semi-circular groove one 7 and a semi-circular groove two 8 are respectively provided inside the long spreading blade 1 and the short spreading blade 2. Both the semi-circular groove one 7 and the semi-circular groove two 8 are instrument channels. The torsion spring 3 is bent twice and has two bending parts. The one close to the torsion spring 3 is the first bending part 9, and the one far from the torsion spring 3 is the second bending part 10. The bending radian of the first bending part 9 and the second bending part 10 is 45°. The bending radian of the first bending part 9 and the second bending part 10 being 45° facilitates the synchronous outward expansion movement of the long spreading blade 1 and the short spreading blade 2, thereby expanding the surgical channel, increasing the surgical visual field range, and facilitating subsequent surgical operations. The piercing head 4 at the front end of the long spreading blade 1 is blunt-treated, and the bending radian of the piercing head 4 at the front end of the long spreading blade 1 is 60°. The bending radian of 60° of the piercing head 4 facilitates the long spreading blade 1 to enter the surgical site. The long spreading blade 1 and the short spreading blade 2 are relatively parallel. By providing the long spreading blade 1 and the short spreading blade 2, the damage to the surrounding tissues can be reduced, and the postoperative recovery time can be shortened. Since the long spreading blade 1, the short spreading blade 2, and the torsion spring 3 are made of high-quality stainless steel materials on the outside and the surface is polished, they have good smoothness and corrosion resistance functions.

[0028] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] In the use of this utility model, first, the clamping instrument clamps the device to be closed. The long spreading blade 1 and the short spreading blade 2 are columnar. Then, through the blunt treatment of the piercing head 4, it is convenient for the long spreading blade 1 to enter the surgical site. The bending radian of 45° of the first bending part 9 and the second bending part 10 facilitates the spreading of the incision. By releasing the clamping instrument, the long spreading blade 1 and the short spreading blade 2 act through the elastic force of the torsion spring 3, and the torsion spring 3 is provided with a bending structure, thereby effectively increasing the spreading force. The maximum opening and closing angle of the long spreading blade 1 and the short spreading blade 2 can be limited by the magnitude of the released force. Due to the elastic force of the torsion spring 3, the long spreading blade 1 and the short spreading blade 2 can synchronously produce an outward expansion movement, thereby expanding the surgical channel, increasing the surgical visual field range, and facilitating subsequent surgical operations. At the same time, since the long spreading blade 1 and the short spreading blade 2 are set with a smooth radian, it is convenient for the skin to slide in and reduces the traction on the skin. By bending the rear end of the long spreading blade 1 by 90° and the rear end of the short spreading blade 2 by 90°, the flesh and skin tissues at the minimally invasive wound can be effectively prevented from adhering to the instrument, improving the working efficiency of the instrument.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A UBE minimally invasive spinal surgery retractor, comprising a long spreading blade (1), a short spreading blade (2) and a torque spring (3), characterized in that: The top end of the long open blade (1) is provided with an insertion head (4), the bottom of the side of the bent portion of the long open blade (1) is provided with a spring connection hole (5), and the rear end bent portion of the short open blade (2) is provided with a spring connection hole (6); The front end of the long spread blade (1) is bent, the rear end of the long spread blade (1) is bent 90°, and the front end and rear end of the short spread blade (2) are both bent 90°; The extended ends at both ends of the torque spring (3) are inserted into the spring connection hole 1 (5) and the spring connection hole 2 (6) to be connected to the corresponding long open blade (1) and the short open blade (2), and the connection is welded and fixed. The extended sections at both ends of the torque spring (3) are bent.

2. The UBE minimally invasive spinal surgery retractor according to claim 1, characterized in that: A semicircular groove 1 (7) and a semicircular groove 2 (8) are respectively arranged on the inner sides of the long spreading blade (1) and the short spreading blade (2), and the semicircular groove 1 (7) and the semicircular groove 2 (8) are both instrument channels.

3. The UBE minimally invasive spinal surgery retractor according to claim 1, characterized in that: The torsion spring (3) is designed to be bent twice and is provided with two bending parts, the first bending part (9) being close to the torsion spring (3) and the second bending part (10) being far from the torsion spring (3).

4. The UBE minimally invasive spinal surgery retractor according to claim 3, characterized in that: The bending arc of the first bending portion (9) and the second bending portion (10) is 45°.

5. The UBE minimally invasive spinal surgery retractor according to claim 1, characterized in that: The penetration head (4) at the front end of the long spreading blade (1) is passivated.

6. The UBE minimally invasive spinal surgery retractor according to claim 1, characterized in that: The insertion head (4) at the front end of the long spreading blade (1) has a bending arc of 60°.

7. The UBE minimally invasive spinal surgery retractor according to claim 1, characterized in that: The long spreading blades (1) and the short spreading blades (2) are relatively parallel.

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