Artificial lumbar vertebra implanting device

Abstract

The utility model discloses an artificial lumbar vertebra implanting device, which belongs to the field of medical instruments and comprises a fusion cage and an implanting tube, the fusion cage comprises a primary buckle and a secondary buckle, anti-slip lines are arranged between the contact surfaces of the primary buckle and the secondary buckle, one side of the primary buckle is provided with a secondary plug and a main support plate, and the secondary plug is connected with the primary support plate. According to the scheme, an integrated fusion cage is omitted, the fusion cage with the adjustable length is adopted, the fusion cage comprises the primary buckle, the secondary buckle and the implanting pipe which is matched with the primary buckle and the secondary buckle for use, during implanting, the U-shaped clamping head at one end of the implanting pipe is inserted and clamped into the clamping opening, and through the implanting pipe, the primary buckle and the secondary buckle are matched for use; the fusion cage is implanted between the spines of a patient, then the buckle ejection rod is rotated, the threaded part at one end of the buckle ejection rod is screwed and inserted into the threaded hole through threads, then one end of the threaded part abuts against the main insertion head, the son buckle is ejected out, the length of the fusion cage is adjusted, the length of the fusion cage can be adjusted according to the size of the spines of the patient, and the support to the spines is stronger.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, and more specifically to an artificial lumbar vertebra implantation device. Background Art

[0002] Lumbar fusion device, also known as intervertebral fusion device, is a surgical instrument used to treat diseases such as lumbar disc herniation and lumbar spondylolisthesis. The artificial lumbar implant device is a surgical instrument, including a fusion device and an implant tube. During the operation, the fusion device is implanted between the two vertebrae through the implant tube to make them contact, promote the growth of bone tissue between the vertebrae, and finally achieve fusion. Lumbar fusion device is mainly used to treat diseases such as lumbar disc herniation and lumbar spondylolisthesis. These diseases can cause problems such as intervertebral disc degeneration and bone hyperplasia, which can cause the narrowing of the intervertebral space, compress the nerve roots, and lead to symptoms such as low back pain and lower limb weakness. Surgery can improve symptoms by fixing the vertebrae and promoting the growth of bone tissue.

[0003] The current fusion device has a fixed size. In order to facilitate implantation between two vertebrae, its size is usually smaller than the size of the spine. A smaller fusion device cannot provide good support for the spine, while a larger one is difficult to implant between two vertebrae, increasing the risk of surgery. Therefore, it is necessary to improve the structure of the fusion device so that it is easy to implant and its size can be adjusted according to the patient's spinal size. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an artificial lumbar vertebra implant device, which can adjust the length of the fusion device according to the patient's spine size and provide stronger support for the spine.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] An artificial lumbar implant device includes a fusion device and an implant tube, the fusion device includes a mother buckle and a child buckle, anti-slip patterns are arranged between the contact surfaces of the mother buckle and the child buckle, a secondary plug and a main support plate are arranged on one side of the mother buckle, a secondary support plate and a main plug are arranged on one side of the child buckle, two main support plates are arranged, and the two main support plates are plugged in the upper and lower sides of the main plug, and two secondary support plates are also arranged, and the two secondary support plates are plugged in the upper and lower sides of the secondary plug.

[0007] Furthermore, clamping openings are symmetrically provided on both sides of one end of the female buckle, and a threaded hole is provided through one end of the female buckle.

[0008] Furthermore, a U-shaped clamp is welded to one end of the implant tube, and a buckle ejection rod passes through the center of the implant tube, the size of the U-shaped clamp is matched with the clamping mouth, and a threaded portion is provided at one end of the buckle ejection rod, and the size of the threaded portion is matched with the threaded hole.

[0009] Furthermore, a secondary shaft jack is provided through one end of the main support plate, a secondary sliding window is provided through the interior of the secondary plug, and a secondary limiting shaft is installed through between the secondary shaft jack and the secondary sliding window.

[0010] Furthermore, a main shaft jack is provided at one end of the main support plate, a main sliding window is provided inside the main plug, and a main limit shaft is installed between the main shaft jack and the main sliding window.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] This solution eliminates the integrated fusion device and adopts a length-adjustable fusion device, which includes a mother buckle and a sub-buckle, and is used with an implant tube. During implantation, the U-shaped clamp at one end of the implant tube is inserted and clamped inside the clamping port, and the fusion device is implanted between the patient's vertebrae through the implant tube. The buckle ejection rod is then rotated, and the threaded portion at one end of the buckle ejection rod is inserted into the threaded hole through threaded engagement. Then one end of the threaded portion presses against the main plug to eject the sub-buckle, thereby adjusting the length of the fusion device. The length of the fusion device can be adjusted according to the patient's spinal size, providing stronger support for the spine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the fusion device of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the sub-button of the utility model;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the female buckle of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the female buckle after the auxiliary plug is removed from the utility model;

[0017] Figure 5 This is a schematic diagram of the top view of the fusion device of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the fusion device of the utility model after the length is adjusted, viewed from above;

[0019] Figure 7 This is a schematic diagram of the three-dimensional structure of the implant tube of the utility model;

[0020] Figure 8 It is a three-dimensional structural schematic diagram of the implant tube and the fusion device of the utility model after being plugged and installed.

[0021] Description of the numbers in the figure:

[0022] 101, female buckle; 111, secondary plug; 112, main support plate; 113, main limit shaft; 114, clamping mouth; 115, threaded hole; 116, secondary sliding window; 117, main shaft socket; 102, sub-buckle; 121, secondary support plate; 122, secondary limit shaft; 123, main plug; 124, main sliding window; 125, secondary shaft socket; 103, implant tube; 131, U-shaped clamp; 132, buckle ejector rod; 133, threaded portion. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 8 An artificial lumbar implant device includes a fusion device and an implant tube 103. The fusion device includes a mother buckle 101 and a child buckle 102. Anti-slip patterns are arranged between the contact surfaces of the mother buckle 101 and the child buckle 102. This arrangement improves the friction coefficient between the mother buckle 101 and the child buckle 102, and prevents the length of the fusion device from changing easily. A secondary plug 111 and a main support plate 112 are arranged on one side of the mother buckle 101, and a secondary support plate 121 and a main plug 123 are arranged on one side of the child buckle 102. Two main support plates 112 are arranged, and the two main support plates 112 are plugged and arranged on the upper and lower sides of the main plug 123. Two secondary support plates 121 are also arranged, and the two secondary support plates 121 are plugged and arranged on the upper and lower sides of the secondary plug 111. This arrangement facilitates the adjustment of the length of the fusion device.

[0025] See also Figure 1-Figure 8 One end of the female buckle 101 is symmetrically provided with clamping openings 114 on both sides. This arrangement makes it easy for the U-shaped clamp 131 at the end of the implant tube 103 to be inserted and installed on the clamping opening 114, and one end of the female buckle 101 is penetrated by a threaded hole 115. This arrangement makes it easy for the threaded part 133 to be inserted into the threaded hole 115 through threaded engagement.

[0026] See also Figure 1-Figure 8 A U-shaped clamp 131 is welded at one end of the implant tube 103, and a buckle ejection rod 132 passes through the center of the implant tube 103. The size of the U-shaped clamp 131 and the clamping opening 114 are matched. A threaded portion 133 is provided at one end of the buckle ejection rod 132, and the size of the threaded portion 133 and the threaded hole 115 are matched. This arrangement makes it easy to adjust the length of the fusion device through the ejection rod 132.

[0027] See also Figure 1-Figure 8A secondary shaft jack 125 is provided at one end of the main support plate 112, a secondary sliding window 116 is provided inside the secondary plug 111, and a secondary limiting shaft 122 is installed between the secondary shaft jack 125 and the secondary sliding window 116. This arrangement ensures a stable connection between the mother buckle 101 and the child buckle 102.

[0028] See also Figure 1-Figure 8 A main shaft socket 117 is formed at one end of the main support plate 112, a main sliding window 124 is formed inside the main plug 123, and a main limiting shaft 113 is installed between the main shaft socket 117 and the main sliding window 124. This arrangement ensures a stable connection between the mother buckle 101 and the child buckle 102.

[0029] During use: During implantation, the U-shaped clamp 131 at one end of the implant tube 103 is inserted and engaged in the clamping port 114, and the fusion device is implanted between the patient's vertebrae through the implant tube 103. Then the buckle ejection rod 132 is rotated, and the threaded portion 133 at one end of the buckle ejection rod 132 is inserted into the threaded hole 115 through threaded engagement. Then one end of the threaded portion 133 presses against the main plug 123 to eject the sub-buckle 102, thereby adjusting the length of the fusion device. The length of the fusion device can be adjusted according to the patient's spinal size, providing stronger support for the spine.

[0030] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An artificial lumbar vertebra implant device, comprising a fusion device and an implant tube (103), wherein the fusion device comprises a female buckle (101) and a male buckle (102), and an anti-slip pattern is provided between the contact surfaces of the female buckle (101) and the male buckle (102), characterized in that: A secondary plug (111) and a main support plate (112) are provided on one side of the mother buckle (101), and a secondary support plate (121) and a main plug (123) are provided on one side of the sub-buckle (102). Two main support plates (112) are provided, and the two main support plates (112) are plugged and arranged on the upper and lower sides of the main plug (123). Two secondary support plates (121) are also provided, and the two secondary support plates (121) are plugged and arranged on the upper and lower sides of the secondary plug (111).

2. An artificial lumbar vertebra implant device according to claim 1, characterized in that: Clamping openings (114) are symmetrically provided on both sides of one end of the female buckle (101), and a threaded hole (115) is provided through one end of the female buckle (101).

3. An artificial lumbar vertebra implant device according to claim 2, characterized in that: A U-shaped clamp (131) is welded to one end of the implant tube (103), and a buckle ejection rod (132) passes through the center of the implant tube (103), the size of the U-shaped clamp (131) and the clamping opening (114) are matched, and a threaded portion (133) is provided at one end of the buckle ejection rod (132), and the size of the threaded portion (133) and the threaded hole (115) are matched.

4. The artificial lumbar vertebra implant device according to claim 1, characterized in that: A secondary shaft insertion hole (125) is provided through one end of the main support plate (112), a secondary sliding window (116) is provided through the interior of the secondary plug (111), and a secondary limit shaft (122) is installed between the secondary shaft insertion hole (125) and the secondary sliding window (116).

5. The artificial lumbar vertebra implant device according to claim 1, characterized in that: A main shaft insertion hole (117) is provided through one end of the main support plate (112), a main sliding window (124) is provided through the interior of the main plug (123), and a main limit shaft (113) is installed between the main shaft insertion hole (117) and the main sliding window (124).

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