An extracorporeal lamina forceps for spinal endoscopy

Abstract

A spinal endoscope external lamina forceps, which relates to a lamina forceps. A through groove is provided at the top of the fixed forceps handle, and a support block is fixed at the front end of the through groove. The top of the movable forceps handle extends into the through groove and is hinged to the fixed forceps handle at its middle position. Both the upper sleeve and the lower sleeve are semi-circular tubes, and the two are butted into a circular tube and are connected in a sliding manner. The rear end of the lower sleeve is fixed on the support block, and a moving block is fixed at the rear end of the upper sleeve. When the movable forceps handle swings back and forth, it drives the moving block to make the upper sleeve slide back and forth on the lower sleeve. An elastic support member is installed between the bottom of the movable forceps handle and the fixed forceps handle. There is a lower jaw head at the front end of the lower sleeve. The end of the lower jaw head is a hemispherical mouth part with an obtuse inclination angle, and the edge is polished with a cutting edge. An endoscope perforation is provided at the middle position. There is an upper jaw head at the front end of the upper sleeve, and an inner blade that can bite with the lower jaw head is provided at the end of the upper jaw head. External operation outside the endoscope, with a larger cutting edge and a wider range of movement, improving the surgical efficiency.

Description

Technical Field

[0001] The present invention relates to a lamina forceps, in particular to an extra-endoscopic spinal lamina forceps, belonging to the field of medical devices. Background Art

[0002] For discectomy, spinal canal decompression, and intervertebral fusion under spinal endoscopy, it is necessary to remove a part of the ligamentum flavum, lamina, and articular processes and other bone tissues. The existing technology generally uses intra-endoscopic lamina forceps, osteotomes, and trephines as the main tools. These tools have small cutting edges and are limited by the working range inside the endoscope, resulting in low efficiency.

[0003] Therefore, there is a great need for a medical device that can be used outside the endoscope. On the one hand, it is less affected by the endoscope and is easier to perform the removal operation. On the other hand, it can also increase the cutting edge to improve the single removal amount, thereby improving the surgical efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an extra-endoscopic spinal lamina forceps to solve the above problems.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: An extra-endoscopic spinal lamina forceps includes a fixed forceps handle, a movable forceps handle, an elastic support member, a moving block, a lower sleeve, an upper sleeve, a lower forceps head, and an upper forceps head. A through groove is provided at the top of the fixed forceps handle in the front-rear direction, and a support block is fixed at the front end of the through groove. The top of the movable forceps handle extends into the through groove and is hinged to the corresponding position of the fixed forceps handle through a pin at the middle position. Both the upper sleeve and the lower sleeve are semi-circular tubes horizontally arranged in the front-rear direction, and the two are butted into a circular tube and are connected in a sliding manner. The rear end of the lower sleeve is fixed on the support block, and the rear end of the upper sleeve is fixed with a moving block. The moving block is movably connected to the top of the movable forceps handle. When the movable forceps handle swings back and forth, it drives the moving block to make the upper sleeve slide back and forth on the lower sleeve. An elastic support member is installed between the bottom of the movable forceps handle and the fixed forceps handle. The front end of the lower sleeve is integrally provided with a lower forceps head. The end of the lower forceps head is set as a hemispherical mouth with an obtuse inclination angle, and its edge is polished with a cutting edge. An endoscopic perforation is opened at the middle position. The front end of the upper sleeve is integrally provided with an upper forceps head. The end of the upper forceps head is provided with an inner edge that can bite with the lower forceps head.

[0006] Compared with the existing technology, the beneficial effect of the present invention is that the present invention is a device for removing the ligamentum flavum and lamina bone tissue during spinal endoscopic surgery. It is an extra-endoscopic operation, and the working range exceeds the diameter range of the spinal endoscope. Moreover, the cutting edge is large, the movement range is wide, and the single cleaning area is 5-6 times that of the traditional in-endoscope forceps, improving the surgical efficiency. Brief Description of the Drawings

[0007] Figure 1 is an axonometric view of the overall structure of the extra-endoscopic spinal lamina forceps of the present invention;

[0008] Figure 2 is Figure 1 the A-A sectional view of;

[0009] Figure 3 is the front view structural schematic diagram of the extracorporeal lamina forceps of the spinal endoscope of the present invention;

[0010] Figure 4 is Figure 3 the enlarged view of part B of;

[0011] Figure 5 is Figure 3 the enlarged view of part C of. Specific embodiments

[0012] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the 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 shall fall within the protection scope of the present invention.

[0013] Specific embodiment 1: As Figures 1 to 5 shown, the present invention discloses an extracorporeal lamina forceps for a spinal endoscope, including a fixed forceps handle 1, a movable forceps handle 2, an elastic support member 4, a moving block 5, a lower sleeve 6, an upper sleeve 7, a lower forceps head 8, and an upper forceps head 9. A through groove 1-1 is provided at the top of the fixed forceps handle 1 in the front-rear direction, and a support block 1-2 is fixed at the front end of the through groove 1-1. The top of the movable forceps handle 2 extends into the through groove 1-1 and is hinged to the corresponding position of the fixed forceps handle 1 through a pin 3 at the middle position. Both the upper sleeve 7 and the lower sleeve 6 are semicircular tubes horizontally arranged in the front-rear direction, and the two are butted into a circular tube and are connected in a sliding manner. The rear end of the lower sleeve 6 is fixed on the support block 1-2, and the rear end of the upper sleeve 7 is fixed with a moving block 5. The moving block 5 is movably connected to the top of the movable forceps handle 2. When the movable forceps handle 2 swings back and forth, it drives the moving block 5 to make the upper sleeve 7 slide back and forth on the lower sleeve 6. An elastic support member 4 is installed between the bottom of the movable forceps handle 2 and the fixed forceps handle 1. The front end of the lower sleeve 6 is integrally provided with a lower forceps head 8. The end of the lower forceps head 8 is set as a hemispherical mouth part with an obtuse inclination angle, and its edge is polished with a cutting edge. An endoscopic perforation 8-1 is provided at the middle position. The front end of the upper sleeve 7 is integrally provided with an upper forceps head 9. The end of the upper forceps head 9 is provided with an inner edge that can bite with the lower forceps head 8.

[0014] Specific embodiment 2: As Figure 3 、 4As shown, this embodiment is a further explanation of the specific embodiment one, a clamp head 5-1 protrudes from the bottom of the movable block 5, and a notch is opened on the top of the movable clamp handle 2 and is plugged into and matched with the clamp head 5-1 to achieve a movable connection between the movable block 5 and the top of the movable clamp handle 2.

[0015] Specific implementation method three: Figure 2 As shown, this embodiment is a further explanation of the specific embodiment 1. Slide rails are provided on both sides of the connection end of the upper sleeve 7, and slide grooves are provided on both sides of the connection end of the lower sleeve 6 to realize a sliding connection between the upper sleeve 7 and the lower sleeve 6.

[0016] Specific implementation method four: Figure 3 , 5 As shown, this embodiment is a further explanation of the specific embodiment 1, and the obtuse inclination angle of the hemispherical mouth of the lower clamp head 8 is ∠a, and ∠a is 110° or 130°.

[0017] Specific implementation method five: Figure 1 , 3 As shown, this embodiment is a further explanation of the specific embodiment one, the elastic support member 4 is two spring steel sheets arranged in a V shape, the outer ends of the two spring steel sheets are respectively fixedly connected to the inner sides of the bottoms of the fixed clamp handle 1 and the movable clamp handle 2, and the inner ends of the two spring steel sheets are overlapped.

[0018] Reference Figures 1 to 5 As shown, after the movable forceps handle 2 is installed when the present invention is needed for surgery, the working area of ​​the spinal canal that has been preliminarily processed and formed is entered along the working sleeve, and a spinal endoscope is placed between the upper sleeve 7 and the lower sleeve 6. Under the monitoring of the spinal endoscope, the movable forceps handle 2 is manually gripped repeatedly in the direction of the fixed forceps handle 1 to achieve repeated engagement of the lower forceps head 8 and the upper forceps head 9, thereby effectively biting off the yellow ligament and bone that need to be cleaned. After the observation reaches the predetermined target, the present invention is removed for subsequent work. The present invention is an extra-endoscopic operation, and the working range exceeds the diameter range of the spinal endoscope, and the blade is larger and the range of movement is wider. The single cleaning area is 5-6 times that of the traditional endoscopic forceps, and the yellow ligament and bone can be removed more efficiently and with higher quality, saving about 10 minutes of surgical time. The structure is simple and convenient to clean, and it is easy to clean and disinfect, and it is safer.

[0019] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent conditions of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0020] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spinal endoscope external laminar forceps, comprising a fixed forceps handle (1), a movable forceps handle (2), an elastic support member (4), a moving block (5), a lower sleeve (6), an upper sleeve (7), a lower forceps head (8) and an upper forceps head (9), characterized in that: A through groove (1-1) is arranged at the top of the fixed pliers handle (1) in the front-back direction, and a supporting block (1-2) is fixed at the front end of the through groove (1-1). The top of the movable pliers handle (2) extends into the through groove (1-1), and the middle position thereof is hinged to the corresponding position of the fixed pliers handle (1) through a pin (3). Both the upper sleeve (7) and the lower sleeve (6) are semi-circular tubes horizontally arranged in the front-back direction, and the two are butted into a circular tube and adopt a sliding connection form. The rear end of the lower sleeve (6) is fixed on the supporting block (1-2), and a moving block (5) is fixed at the rear end of the upper sleeve (7). The moving block (5) is movably connected to the top of the movable pliers handle (2). When the movable pliers handle (2) swings back and forth, it drives the moving block (5) to make the upper sleeve (7) slide back and forth on the lower sleeve (6). An elastic support member (4) is installed between the bottom of the movable pliers handle (2) and the fixed pliers handle (1). The front end of the lower sleeve (6) is integrally provided with a lower jaw head (8). The end of the lower jaw head (8) is provided with a hemispherical mouth part with an obtuse inclination angle, and its edge is polished with a cutting edge. An endoscope perforation (8-1) is opened at the middle position thereof. The front end of the upper sleeve (7) is integrally provided with an upper jaw head (9). The end of the upper jaw head (9) is provided with an inner edge that can bite with the lower jaw head (8). A spinal endoscope is placed between the upper sleeve (7) and the lower sleeve (6), and the working range exceeds the diameter range of the spinal endoscope. The cutting edge of the inner edge is large and the movement range is wide. The obtuse inclination angle of the hemispherical mouth part of the lower jaw head (8) is ∠a, and ∠a is 110° or 130°.

2. The extra-laminar forceps for spinal endoscopy according to claim 1, wherein: A clamping head (5-1) protrudes from the bottom of the moving block (5). A notch is opened at the top of the movable pliers handle (2) and is inserted and matched with the clamping head (5-1) to realize the movable connection between the moving block (5) and the top of the movable pliers handle (2).

3. The extracorporeal laminar forceps for spinal endoscopy according to claim 1, wherein: Sliding rails are arranged on both sides of the connecting end of the upper sleeve (7), and sliding grooves are arranged on both sides of the connecting end of the lower sleeve (6) to realize the sliding connection form between the upper sleeve (7) and the lower sleeve (6).

4. A spinal endoscope external laminar forceps according to claim 1, characterized in that: The elastic support member (4) is two spring steel sheets arranged in a V shape. The outer ends of the two spring steel sheets are respectively fixedly connected to the inner sides of the bottom of the fixed pliers handle (1) and the movable pliers handle (2), and the inner ends of the two spring steel sheets are overlapped and arranged.

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