A cervical lateral mass screw locator

Abstract

The present invention discloses a cervical lateral mass screw locator. The cervical lateral mass screw locator of the present invention includes a main body, an adjusting member is hinged to the main body, and a screw hole is provided on the adjusting member. The cervical lateral mass screw locator of the present invention adjusts the implantation direction of the lateral mass screw through the adjusting member, and the surgeon can implant the lateral mass screw safely and quickly, avoiding exposure to multiple X-rays; the cervical lateral mass screw locator of the present invention also achieves balanced screw placement to achieve a precise implantation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and particularly to a cervical lateral mass screw locator. Background Art

[0002] When performing cervical spine surgery, spinal orthopedic surgeons sometimes need to implant and fix lateral mass screws. When implanting lateral mass screws along the pedicle, multiple X-ray fluoroscopies are required to find the implantation direction and then implant the screws according to the implantation direction. During the implantation process, the safety of the patient also needs to be ensured. This process is very cautious and time-consuming. Both the patient and the surgeon will be exposed to multiple X-rays, which will affect the physical health of the surgeon in the long run. Summary of the Invention

[0003] Based on this, one of the objectives of the present invention is to provide a cervical lateral mass screw locator that can assist surgeons in safely, quickly, and accurately implanting lateral mass screws.

[0004] A cervical lateral mass screw locator includes a main body, an adjusting member is hinged on the main body, and a screw hole is provided on the adjusting member.

[0005] When a spinal orthopedic surgeon needs to implant a lateral mass screw during cervical spine surgery, the lateral mass screw can be placed on the screw hole of the adjusting member. At this time, the lateral mass screw is balanced with the main body. Then, the cervical lateral mass screw locator of the present invention is directly placed at the screw placement site of the cervical vertebra, and the main body is fixed on the cervical vertebra. Then, the implantation direction of the lateral mass screw is adjusted through the adjusting member, so as to safely and quickly implant the lateral mass screw, avoiding the surgeon and the patient from being exposed to multiple X-rays; the cervical lateral mass screw locator of the present invention can achieve balanced screw placement and can achieve accurate implantation effects.

[0006] Further preferably, the main body includes an insertion portion and an outer portion, and the angle between the adjusting member and the outer portion is an acute angle.

[0007] Further preferably, a degree scale is provided on the main body.

[0008] Further preferably, the degree scale is located at the angle between the adjusting member and the outer portion.

[0009] Further preferably, the screw hole is an elongated hole.

[0010] Further preferably, the screw hole is arranged along the length direction of the adjusting member.

[0011] Further preferably, a screw sleeve is provided at the screw hole, and the screw sleeve can move on the screw hole.

[0012] Further preferably, the screw sleeve is perpendicular to the screw hole, and the cross-sectional area of the end of the screw sleeve is larger than the area of the screw hole.

[0013] Further preferably, a handle is provided at one end of the adjusting member away from the main body.

[0014] Further preferably, the length of the insertion portion is 0.8 cm, and the length of the outer portion ranges from 0.8 to 1 cm.

[0015] Compared with the prior art, for the cervical lateral mass screw locator of the present invention, when a spinal orthopedic surgeon needs to implant a lateral mass screw during a cervical spine operation, the lateral mass screw can be placed on the screw hole of the adjusting member. At this time, the lateral mass screw is balanced with the main body. Then, the cervical lateral mass screw locator of the present invention is directly placed at the screw insertion site of the cervical spine to fix the main body to the cervical spine. Then, the implantation direction of the lateral mass screw is adjusted through the adjusting member, so as to implant the lateral mass screw safely and quickly, and avoid the surgeon and the patient from being irradiated by X-rays multiple times; the cervical lateral mass screw locator of the present invention can achieve balanced screw placement and can achieve accurate implantation effects; when using the cervical lateral mass screw locator of the present invention, the screw sleeve can ensure the integrity of the lateral mass screw, improve the safety of the surgical process, shorten the operation time, and ensure the health of the patient; the cervical lateral mass screw locator of the present invention is convenient to use, easy to produce, and the production cost is low, and can be widely promoted and applied.

[0016] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0017] Figure 1 is an overall schematic diagram of the cervical lateral mass screw locator of the present invention.

[0018] Figure 2 is a schematic diagram of the cervical lateral mass screw locator of the present invention applied to the cervical spine.

[0019] Reference numerals: 1, main body; 2, adjusting member; 3, screw hole; 31, screw sleeve; 4, insertion portion; 5, outer portion; 6, degree scale; 7, handle. Detailed Embodiments

[0020] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to its structure, and they are relative concepts. Therefore, it is possible to change accordingly according to their different positions and different usage states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0021] The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0022] The terms used in the present disclosure are for the purpose of describing particular embodiments only and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0023] A cervical lateral mass screw locator includes a main body 1, an adjusting member 2 is hinged on the main body 1, and a screw hole 3 is provided on the adjusting member 2.

[0024] When a spinal orthopedic surgeon needs to implant a lateral mass screw during a cervical spine surgery, the lateral mass screw can be placed on the screw hole 3 of the adjusting member 2. At this time, the lateral mass screw is balanced with the main body 1. Then, the cervical lateral mass screw locator of the present invention is directly placed at the screw implantation site of the cervical spine to fix the main body 1 on the cervical spine. Then, the implantation direction of the lateral mass screw is adjusted through the adjusting member 2, so as to implant the lateral mass screw safely and quickly, and avoid the surgeon and the patient from being irradiated by X-rays multiple times; the cervical lateral mass screw locator of the present invention can achieve balanced screw placement and can achieve accurate implantation effects.

[0025] Specifically, as Figure 1-2 shown, the main body 1 includes an insertion part 4 and a lateral part 5, and the included angle between the adjusting member 2 and the lateral part 5 is an acute angle. In this embodiment, the main body 1 is a long and thin sheet.

[0026] When the cervical lateral mass screw locator of the present invention is placed at the screw implantation site of the cervical spine, the insertion part 4 of the main body 1 is inserted into the screw implantation site of the cervical spine. At this time, the included angle between the adjusting member 2 and the insertion part 4 is preferably an obtuse angle, that is, the included angle between the adjusting member 2 and the lateral part 5 is an acute angle, so as to avoid the adjusting member 2 from colliding and rubbing with the cervical spine when adjusting the angle, resulting in affecting other processes of the spinal orthopedic surgery.

[0027] Preferably, a degree scale 6 is provided on the main body 1.

[0028] The dial 6 can clearly display the degree of rotation of the adjusting member 2, so that the angle of the side block screw on the screw hole 3 of the adjusting member 2 can be known, and the process of adjusting and implanting the side block screw is clearer; the surgeon can also adjust the implanting direction of the side block screw according to the angle. Usually, several surgeons perform the operation together. The attending surgeon can directly tell the surgeon who implants the side block screw the adjusting degree, and the performing surgeon can quickly and accurately implant the side block screw according to the dial 6 without the attending surgeon having to teach one by one, saving the operation time and being more beneficial to the patient's body.

[0029] Preferably, the dial 6 is located at the included angle between the adjusting member 2 and the outer side part 5. More preferably, the dial 6 can be fan-shaped.

[0030] When using the cervical lateral mass screw locator of the present invention, adjusting the adjusting member 2 usually means adjusting the included angle between the adjusting member 2 and the outer side part 5. Directly arranging the dial 6 at the included angle between the adjusting member 2 and the outer side part 5 is more convenient for the surgeon to view and makes the operation process smoother.

[0031] In this embodiment, the dial 6 is directly engraved on the main body 1, which can not only achieve its function but also save the production cost.

[0032] Preferably, the screw hole 3 is an elongated hole. More preferably, the screw hole 3 is arranged along the length direction of the adjusting member 2.

[0033] The screw hole 3 is set to be elongated, and the side block screw can move on it. When the implanting direction of the side block screw is adjusted by the adjusting member 2 but is not very accurate yet, fine adjustment can still be performed by moving the side block screw on the screw hole 3 to make its implanting direction more precise and improve the implanting quality of the side block screw.

[0034] Preferably, a screw sleeve 31 is provided at the screw hole 3, and the screw sleeve 31 can move on the screw hole 3. More preferably, the screw sleeve 31 is perpendicular to the screw hole 3, and the cross-sectional area of the end of the screw sleeve 31 is larger than the area of the screw hole 3.

[0035] In this embodiment, the screw sleeve 31 is an elongated sleeve, which has a channel for the side block screw to insert and leave inside, and the cross-sectional areas of both ends of the screw sleeve 31 are larger than the area of the screw hole 3.

[0036] When implanting the lateral mass screw, the lateral mass screw can be inserted into the screw sleeve 31, and the lateral mass screw moves along with the screw sleeve 31 in the screw hole 3 to achieve fine adjustment before implanting the lateral mass screw. The screw sleeve 31 can protect the lateral mass screw from being damaged due to friction with the adjusting member 2, which may affect the effect of implanting the lateral mass screw. The cross-sectional area of the end of the screw sleeve 31 is larger than the area of the screw hole 3, which can prevent the screw sleeve 31 from detaching from the adjusting member 2 when moving in the screw hole 3, so as to ensure that the lateral mass screw will not detach from the adjusting member 2 during movement, and avoid medical accidents caused by the accidental slipping of the screw sleeve 31 or the lateral mass screw.

[0037] Preferably, a handle 7 is provided at one end of the adjusting member 2 away from the main body 1.

[0038] In this embodiment, the adjusting member 2 is a long and thin sheet, which may not be convenient to hold and may be prone to slipping. Once it slips, it may cause a medical accident. Moreover, the overall cervical lateral mass screw locator of the present invention may be relatively small. A handle 7 is provided at one end of the adjusting member 2 away from the main body 1, which is convenient for the surgeon to hold, increases the contact area and friction between the surgeon and the cervical lateral mass screw locator of the present invention, and ensures the safety of the surgical process.

[0039] Preferably, the length of the insertion portion 4 is 0.8 cm, and the length of the outer portion 5 ranges from 0.8 to 1 cm. In this embodiment, the main body 1 is directly formed by the insertion portion 4 and the outer portion 5, and the hinged position of the adjusting member 2 and the main body 1 is at the junction of the insertion portion 4 and the outer portion 5.

[0040] The lengths of the insertion portion 4 and the outer portion 5 of the main body 1 should neither be too long nor too short. If the insertion portion 4 is too short, it is easy to cause the cervical lateral mass screw locator of the present invention to not be inserted into the cervical vertebra. If the insertion portion 4 is too long, it is difficult to accurately adjust the implanting direction of the lateral mass screw. If the outer portion 5 is too short, it is easy to make the degree scale 6 unclear. If the outer portion 5 is too long, it is easy to affect the convenience of the surgical process. Therefore, the insertion portion 4 with a length of 0.8 cm and the outer portion 5 with a length ranging from 0.8 to 1 cm can enable the surgeon to successfully implant the lateral mass screw accurately and ensure the safety of the surgical process.

[0041] In addition, the main body 1 and the adjusting member 2 can be made of a metal material, such as stainless steel, etc., which is convenient for repeated use.

[0042] Compared with the prior art, for the cervical lateral mass screw locator of the present invention, when a spinal orthopedic surgeon needs to implant a lateral mass screw during a cervical spine operation, the lateral mass screw can be placed on the screw hole 3 of the adjusting member 2. At this time, the lateral mass screw is balanced with the main body 1. Then, the cervical lateral mass screw locator of the present invention is directly placed at the screw implantation site of the cervical spine to fix the main body 1 on the cervical spine. Then, the implantation direction of the lateral mass screw is adjusted through the adjusting member 2, so as to implant the lateral mass screw safely and quickly, and avoid the surgeon and the patient from being irradiated by X-rays multiple times; the cervical lateral mass screw locator of the present invention can achieve balanced screw placement and can achieve accurate implantation effects; when using the cervical lateral mass screw locator of the present invention, the screw sleeve 31 can ensure the integrity of the lateral mass screw, improve the safety of the operation process, shorten the operation time, and ensure the health of the patient; the cervical lateral mass screw locator of the present invention is convenient to use, easy to produce, and the production cost is low, and can be widely promoted and applied.

[0043] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A cervical lateral mass screw locator, characterized in that: It includes a main body, on which an adjusting member is hinged. There is a long strip-shaped screw hole on the adjusting member; the screw hole is arranged along the length direction of the adjusting member, and a movable screw sleeve is provided at the screw hole. The screw sleeve is perpendicular to the screw hole and the cross-sectional area of the end is larger than the area of the screw hole. The main body includes an insertion part and an outer part. The length of the insertion part is 0.8 cm, and the length of the outer part is 0.8 - 1 cm; the included angle between the adjusting member and the outer part is an acute angle, and a degree scale is provided at the included angle. The degree scale is fan-shaped and engraved on the main body.

2. The cervical lateral mass screw locator according to claim 1, wherein: A handle is provided at one end of the adjusting member away from the main body.

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