Percutaneous puncture minimally invasive guide plate for thoracolumbar vertebra osteoporosis fracture

Abstract

The utility model relates to a thoracolumbar vertebra osteoporosis fracture percutaneous puncture minimally invasive guide plate which comprises a guide plate body attached to the back of a patient, a through hole corresponding to the spinous process of the patient is formed in the middle of the guide plate body, and guide columns are arranged on the guide plate body and located on the two sides of the through hole respectively. The direction of the guide column coincides with the direction of the connecting line between the vertebral pedicle and the vertebral body of the spine on the back of the patient. According to the thoracolumbar vertebra osteoporosis fracture percutaneous puncture minimally invasive guide plate, the guide plate body attached to the back of a patient plays a supporting role, positioning of the guide plate body is achieved through the arrangement of the through holes, accurate installation of the guide plate body is guaranteed, and the guide plate is convenient to use. Meanwhile, after the guide plate body is positioned, the guide needle can be conveniently inserted into the vertebral body through the guide column, injection of bone cement on a wound surface is completed, the positioning precision is high, operation is convenient, the operation infection risk is small, pain of a patient is greatly relieved, the rehabilitation period of a rehabilitation operation is shortened, the structure is simple, and convenience and practicability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument auxiliary guide plate technical field especially, relates to a thoracolumbar osteoporosis fracture percutaneous puncture minimally invasive guide plate. BACKGROUND

[0002] Thoracolumbar osteoporosis is a common clinical bone disease, mainly due to bone mass loss, bone tissue microstructure damage and other reasons. Since the thoracic vertebra is the load-bearing bone of the human body, when the thoracic vertebra of the patient appears osteoporosis, the load-bearing capacity of the thoracic vertebra will be reduced, thereby causing the patient to become shorter. If the thoracic vertebra of the patient appears osteoporosis, the patient will appear limited activity, and when bending, turning and other movements are performed, the patient will appear limited activity symptoms, and even the vertebral body appears compression fracture, which causes the patient to appear humpbacked, and the compression fracture is serious, which causes the patient to appear chest and back pain, and the pain will be aggravated when bending, turning and other movements are performed. In the prior art, the treatment of thoracolumbar osteoporosis usually includes the following steps: first, the skin of the patient is cut open, and the soft tissue and periosteum are stripped, then a guide needle is punched in to establish an injection channel, and finally the guide needle is used to inject bone cement into the spine to increase the bone density. However, this method has the following obvious defects: large trauma surface, easy to damage the surrounding nerve tissue, high risk of surgical infection, long recovery period, and great pain to the patient. SUMMARY

[0003] The utility model solves the technical problem in the prior art and provides a thoracolumbar osteoporosis fracture percutaneous puncture minimally invasive guide plate.

[0004] The utility model discloses a technical scheme that solves the above technical problem: a thoracolumbar osteoporosis fracture percutaneous puncture minimally invasive guide plate, which comprises a guide plate main body that is attached to the back of a patient, a through hole corresponding to the spinous process of the patient is arranged in the middle of the guide plate main body, guide columns are arranged on both sides of the through hole on the guide plate main body, and the direction of the guide columns coincides with the direction of the line connecting the pedicle and the vertebral body of the spine on the back of the patient.

[0005] The thoracolumbar osteoporosis fracture percutaneous puncture minimally invasive guide plate has the advantages that: the guide plate main body attached to the back of the patient plays a supporting role, the positioning of the guide plate main body is realized through the through hole, the guide plate main body is accurately installed, the guide needle can be easily inserted into the vertebral body through the guide column after the positioning of the guide plate main body is completed, the injection of bone cement is completed, the positioning accuracy is high, the operation is convenient, the risk of surgical infection is small, the pain of the patient is greatly reduced, the recovery period of the operation is shortened, the structure is simple, and the guide plate is convenient and practical.

[0006] On the basis of the above technical scheme, the utility model also can make following improvement:

[0007] Further, the guide plate body is a 3D printed customized guide plate.

[0008] The beneficial effects of the above further scheme are: through the 3D printed customized guide plate, the guide plate body can be completely fitted with the back of the patient, so that the guide plate body can be completely fixed by combining the through hole, and the peculiar smell of the guide plate body during the operation process is avoided, which affects the operation effect.

[0009] Further, the guide plate body is made of photosensitive resin material.

[0010] The beneficial effects of the above further scheme are: the guide plate body made of photosensitive resin material is light in quality, good in structural strength, convenient to operate, low in cost and low in pollution.

[0011] Further, the number of through holes is at least three.

[0012] The beneficial effects of the above further scheme are: by setting multiple through holes, on the one hand, the spinous process of the patient can be matched to further increase the fixing effect, and on the other hand, the injection of bone cement of the lesion spine is facilitated.

[0013] Further, the guide plate body is provided with a protruding part on both sides of the through hole, and the outer contour line of the protruding part matches the outer contour line of the lesion spine of the patient.

[0014] The beneficial effects of the above further scheme are: by setting the protruding part on both sides of the through hole on the guide plate body, the precise positioning of the guide plate body can be determined by the coincidence of the outer contour of the lesion spine under the CBCT image and the outer contour of the protruding part in the positioning process of the guide plate body.

[0015] Further, the number of guide columns on both sides of the through hole of the guide plate body is at least two.

[0016] The beneficial effects of the above further scheme are: by setting multiple guide columns, the standby guide column can be used to assist the injection in the case of abnormality or insufficient of the main guide column, so that the operation is smoothly and safely completed.

[0017] Further, the front surface of the guide plate body is provided with an identification for indicating the direction and placement site.

[0018] The beneficial effects of the above further scheme are: by setting the identification, the medical staff can accurately place the guide plate body, and the practical convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of a percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a three-dimensional structural diagram of a percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a top view schematic diagram of a percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to an embodiment of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Guide plate body, 2. Through hole, 3. Guide post, 4. Protrusion. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] like Figures 1 to 3 As shown, a percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae includes a guide plate body 1 that fits against the patient's back. The guide plate body 1 has a through hole 2 in the middle for corresponding to the patient's spinous process. Guide posts 3 are respectively provided on both sides of the through hole 2 on the guide plate body 1. The direction of the guide posts 3 coincides with the direction of the line connecting the pedicle and the vertebral body of the patient's back spine.

[0026] This invention relates to a percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae. The guide plate body 1, which conforms to the patient's back, provides support. Through holes 2 are provided to position the guide plate body 1, ensuring precise installation. Once the guide plate body 1 is positioned, the guide needle can be easily inserted into the vertebral body via the guide post 2 to inject bone cement. This method offers high positioning accuracy on the wound surface, convenient operation, low risk of surgical infection, significantly reduces patient suffering, shortens the rehabilitation period, and is simple in structure and convenient to use.

[0027] In one or more embodiments of this utility model, the guide plate body 1 is a 3D-printed customized guide plate. The 3D-printed customized guide plate allows the guide plate body 1 to fit perfectly against the patient's back. Combined with the through-hole 2, this ensures complete fixation of the guide plate body 1, preventing odors from emanating from the guide plate body 1 during surgery and thus avoiding any impact on the surgical outcome.

[0028] Specifically, the guide plate body 1 can be printed according to the three-dimensional data of the back of the patient's torso by laser 3D printing after scanning the three-dimensional image data of the back of the patient's torso and then processing the data, so that the guide plate body 1 is completely fitted with the back of the patient, and customization is realized.

[0029] Optionally, in one or more embodiments of the utility model, the guide plate body 1 is of photosensitive resin material. The guide plate body 1 of photosensitive resin material is light in weight, good in structural strength, convenient to operate, low in cost and low in pollution.

[0030] Optionally, in one or more embodiments of the utility model, the number of through holes 2 is at least three. By arranging multiple through holes 2, on the one hand, the fixing effect can be further improved by cooperating with the spinous process of the patient, and on the other hand, the injection of bone cement into the lesion spine is facilitated.

[0031] Here, in the embodiments of the utility model, the number of through holes 2 is preferably two, the through hole 2 located in the middle is opposite to the spinous process of the lesion spinal segment of the patient, and the through holes 2 located on both sides are directed to the spinous processes of the adjacent spinal segments above and below the lesion spinal segment, assisting in positioning.

[0032] In one or more embodiments of the utility model, the guide plate body 1 is provided with a protruding portion 4 on both sides of the through hole 2, and the outer contour line of the protruding portion matches the outer contour line of the lesion spine of the patient. By arranging the protruding portion 4 on both sides of the through hole 2 on the guide plate body 1, the precise positioning of the guide plate body 1 can be determined by the coincidence of the outer contour of the lesion spine under the CBCT image and the outer contour of the protruding portion 4 during the positioning of the guide plate body 1.

[0033] In one or more embodiments of the utility model, the number of guide columns 3 on both sides of the through hole 2 on the guide plate body 1 is at least two. By arranging multiple guide columns 3, the standby guide column 3 can be used to assist injection in the case of abnormality or insufficient use of the main guide column 3, so as to ensure the smooth and safe completion of the operation.

[0034] In the embodiments of the utility model, the number of guide columns 3 is preferably three.

[0035] In one or more embodiments of the utility model, the front surface of the guide plate body 1 is provided with an identification for indicating the direction and placement position. By arranging the identification, the medical staff can accurately place the guide plate body 1, and the practical convenience is improved.

[0036] In practice, the front surface of the guide plate body 1 is provided with marks indicating directions, such as left and right, marks indicating spinal segments, such as L3, L4 and L5, and marks indicating the aperture of the guide column 3, such as 2.5 mm in this embodiment. Of course, the name of the patient can also be provided to facilitate differentiation.

[0037] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae, characterized in that: The device includes a guide plate body (1) that fits against the back of the patient. The guide plate body (1) has a through hole (2) in the middle for corresponding to the spinous process of the patient. Guide posts (3) are respectively provided on both sides of the through hole (2) on the guide plate body (1). The direction of the guide posts (3) coincides with the direction of the line connecting the pedicle and the vertebral body of the spine in the back of the patient. The guide plate body (1) is provided with protrusions (4) on both sides of the through hole (2), and the outer contour of the protrusions matches the outer contour of the patient's lesion spine.

2. The percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to claim 1, characterized in that: The guide plate body (1) is a customized 3D printed guide plate.

3. The percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to claim 2, characterized in that: The guide plate body (1) is made of photosensitive resin.

4. The percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to claim 1, characterized in that: The number of through holes (2) is at least three.

5. The percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to claim 1, characterized in that: The guide post (3) located on both sides of the through hole (2) on the guide plate body (1) is at least two.

6. The percutaneous minimally invasive guide plate for osteoporotic fractures of the thoracic and lumbar vertebrae according to any one of claims 1-5, characterized in that: The front of the guide plate body (1) is marked with a mark indicating the orientation and placement location.

Images