CN219207261U

CN219207261U - Binary channels backbone is put nail baffle

Info

Publication number: CN219207261U
Application number: CN202223526999.2U
Authority: CN
Inventors: 邱健; 杨延超; 纪娟; 陈华磊
Original assignee: Shaanxi Ruiyi Medical Technology Co ltd
Current assignee: Shaanxi Ruiyi Medical Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-20
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a double-channel spine nail-placing guide plate, which comprises a guide plate main body and a pre-drilled sleeve; the guide plate main body comprises two guide parts, a connecting part for connecting the two guide parts and a fixing part arranged near each guide part; the guide part is provided with a guide hole, one end of the pre-drilled sleeve is placed in the guide hole, the inner diameter of the pre-drilled sleeve is smaller than the diameter of the guide hole, and the axis of the guide hole is consistent with the axis of the pre-drilled sleeve; the position of the guide hole corresponds to the position of the pedicle; the fixing part is provided with a fixing hole which is positioned near the transverse process; the shape of the side of the guide plate body, which is contacted with the spine, is matched with the shape of the spine. According to the utility model, the fixing holes are arranged for fixing the guide plate main body, so that the deflection of the nail channel in the follow-up pre-drilling and nail channel tapping processes can be prevented, the operation in the operation of a doctor is facilitated, the doctor does not need to hold the guide plate to place nails, and the hands of the doctor can be relieved.

Description

Binary channels backbone is put nail baffle

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a double-channel spine nail-placing guide plate.

Background

The traditional spine post-fixation pedicle screw implantation operation is usually performed by virtue of experience of an operator and image equipment such as a C arm, and the like, and as no specific angle can be referred in the operation process, the damage to ligaments, vertebral canal and nerve roots is difficult to avoid, the accuracy of screw placement is difficult to ensure, and the stability of the operation can be influenced in the later stage, such as the problems of broken screw rod, falling-off of the screw and the like.

The existing pedicle screw-placing guide plate is generally a single hole channel, and although the guide can play a role in placing screw, because of the single hole channel, the Kirschner wire is used for one-time positioning, and the offset of screw placement possibly exists after the guide plate is removed and in the subsequent screw placement process, so that the risk of inaccurate screw placement is caused.

Disclosure of Invention

Aiming at the technical requirements, the utility model provides a double-channel spine screw-placing guide plate, which realizes pre-drilling and tapping through double channels, so that the screw-placing process can be continued to a set depth, the accurate restraint of pedicle screws is achieved, and the problem of screw-placing offset is solved.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

a double-channel spine nail-placing guide plate comprises a guide plate main body and a pre-drilled sleeve; the guide plate main body comprises two guide parts, a connecting part for connecting the two guide parts and a fixing part arranged near each guide part; the guide part is provided with a guide hole, one end of the pre-drilled sleeve is placed in the guide hole, the inner diameter of the pre-drilled sleeve is smaller than the diameter of the guide hole, and the axis of the guide hole is consistent with the axis of the pre-drilled sleeve; the position of the guide hole corresponds to the position of the pedicle; the fixing part is provided with a fixing hole, and the fixing hole is positioned near the transverse process; the shape of the side of the guide plate body, which is contacted with the spine, is matched with the shape of the spine.

Preferably, the pre-drilled casing comprises a large end and a small end, the outer diameter of the large end is larger than that of the small end, and the outer diameter of the small end is matched with the inner diameter of the guide hole.

Preferably, the connecting part comprises two vertical plates and two transverse plates, the upper parts of the two vertical plates are connected together, the lower parts of the two vertical plates are respectively connected with one end of one transverse plate, and the other ends of the transverse plates are connected with the guiding parts.

Preferably, the two guiding parts, the two fixing parts and the connecting part are integrally formed.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the fixing holes are arranged for fixing the guide plate main body, so that the deflection of the nail channel in the follow-up pre-drilling and nail channel tapping processes can be prevented, the operation in the operation of a doctor is facilitated, the doctor does not need to hold the guide plate for setting nails, and the hands of the doctor can be relieved; in addition, pre-drilling and tapping are realized through double channels, so that the hole placement process can be continued to a set depth, and the pedicle screw is precisely restrained.

Additional advantages of the utility model will be set forth in the description which follows.

Drawings

FIG. 1 is a schematic view of a dual channel spinal staple guide plate according to an embodiment of the present utility model.

FIG. 2 is a schematic view of a dual channel spinal staple guide plate according to an embodiment of the present utility model.

FIG. 3 is a schematic view of a pre-drilled casing according to an embodiment of the present utility model.

FIG. 4 is a view showing a state of use of the dual channel spinal staple guide plate according to an embodiment of the present utility model.

Meaning of each reference numeral in the drawings:

1-a guide plate main body, 2-a pre-drilled sleeve;

11-guiding part, 12-connecting part and 13-fixing part;

111-guiding holes; 121-risers, 122-cross plates; 131-fixing holes.

21-big end, 22-small end.

Detailed Description

In the description of the utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either direct or indirect connection, etc. Unless otherwise indicated, terms of orientation such as "upper" and "lower" are generally defined with reference to the drawing plane of the corresponding drawing figures, and "inner" and "outer" are defined with reference to the outline of the corresponding drawing figures.

It is noted that the terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present utility model. As used herein, unless the context clearly indicates otherwise, the singular forms also are intended to include the plural forms, and furthermore, it is to be understood that the terms "comprises" and "comprising" and any variations thereof are intended to cover a non-exclusive inclusion, e.g., a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The following detailed description of the preferred embodiments of the utility model is provided, however, the utility model is not limited to the specific embodiments described below, and modifications and equivalent arrangements can be made by those skilled in the art within the scope of the appended claims, which are intended to be included within the scope of the utility model.

The embodiment discloses a double-channel spine nail-placing guide plate, which is combined with fig. 1 and 2, and comprises a guide plate main body 1 and a pre-drilled sleeve 2.

Wherein the guide plate body 1 includes two guide portions 11, a connecting portion 12 connecting the two guide portions 11, and a fixing portion 13 provided in the vicinity of each guide portion 11.

The outer contour of the guide part 11 is of a cylindrical structure, a guide hole 111 is arranged in the guide part, and the position of the guide hole 111 corresponds to the position of the pedicle.

The fixing portion 13 is a protrusion formed by extending the lower portion of the guiding portion 11 to the outside, and fixing holes 131 are formed in the protrusion, and the fixing holes 131 are located near the transverse processes of the spinal column. The fixing hole 131 is used for fixing the guide plate, so that the deflection of the nail channel in the follow-up pre-drilling and nail channel tapping processes can be prevented, the operation in the operation of a doctor is facilitated, the doctor can place nails without holding the guide plate by hand, and the hands of the doctor can be relieved.

The connecting part 12 comprises two vertical plates 121 and two transverse plates 122, the upper parts of the two vertical plates 121 are connected together, the lower parts of the two vertical plates are respectively connected with one end of one transverse plate 122, and the other end of the transverse plate 122 is connected with the guiding part 11. The space between the risers 121 corresponds to the spinous process position on the spinal column.

The pre-drilled casing 2 comprises a large end 21 and a small end 22, as shown in fig. 3, the outer diameter of the large end 21 is larger than the outer diameter of the small end 22, and the outer diameter of the small end 22 is matched with the inner diameter of the guide hole 111.

One end of the pre-drilled sleeve 2 is placed in the guide hole 111, the inner diameter of the pre-drilled sleeve 2 is smaller than the diameter of the guide hole 111, and the axis of the pre-drilled sleeve 2 is consistent with the axis of the guide hole 111. In use, the pre-drilled cannula 2 is placed into the pilot hole 111, bone drill holes are drilled along the pre-drilled cannula 2, small holes are drilled in the pedicles, then the pre-drilled cannula 2 is removed, and reaming is performed along the in-situ placement pilot hole 111.

The guide plate body 1 of this embodiment is integrally formed with two guide portions 11, two fixing portions 13, and a connecting portion 12.

In addition, the shape of the side of the guide plate main body 1, which is contacted with the spine, is matched with the shape of the spine, so that the guide plate main body 1 can be attached to the outer surface of the spine nail placing area.

The following provides the use process of the dual-channel spine nail guide plate described in the above embodiment:

according to the operation scheme formulated by preoperative planning, the patient takes a body position which is suitable for the indication, and selects a proper operation access way to obtain a good intraoperative view, and the guide plate main body 1 is correctly placed;

fixing the guide plate main body 1 on the vertebral body along the two side fixing holes 131 through screws;

the pre-drilled sleeve 2 is placed in the guide hole 111, and then bone drill holes are drilled along the pre-drilled sleeve 2, and the direction is checked to be correct by combining an imaging device in the drilling process. After the pre-drilling is finished, removing the pre-drilled sleeve 2, and placing the sleeve into the guide hole 111 along the original position for tapping; after the pre-drilling and tapping of the two sides are completed, the guide plate main body 1 is removed for subsequent operation.

Claims

1. The double-channel spine nail-placing guide plate is characterized by comprising a guide plate main body (1) and a pre-drilled sleeve (2); the guide plate main body (1) comprises two guide parts (11), a connecting part (12) for connecting the two guide parts (11) and a fixing part (13) arranged near each guide part (11);

the guide part (11) is provided with a guide hole (111), one end of the pre-drilled sleeve (2) is placed in the guide hole (111), the inner diameter of the pre-drilled sleeve (2) is smaller than the diameter of the guide hole (111), and the axis of the guide hole (111) is consistent with the axis of the pre-drilled sleeve (2); the position of the guide hole (111) corresponds to the pedicle position;

the fixing part (13) is provided with a fixing hole (131), and the fixing hole (131) is positioned near the transverse process;

the shape of the side of the guide plate main body (1) contacted with the spine is matched with the shape of the spine.

2. The dual-channel spinal staple guide plate of claim 1, wherein the pre-drilled sleeve (2) comprises a large end (21) and a small end (22), the large end (21) having an outer diameter greater than the small end (22) and the small end (22) having an outer diameter matching the inner diameter of the guide hole (111).

3. The dual-channel spinal column nail guide plate according to claim 1, wherein the connecting portion (12) comprises two vertical plates (121) and two transverse plates (122), the upper portions of the two vertical plates (121) are connected together, the lower portions of the two vertical plates are respectively connected with one end of one transverse plate (122), and the other end of the transverse plate (122) is connected with the guide portion (11).

4. The double-channel spine nail guide plate according to claim 1, wherein the two guide parts (11), the two fixing parts (13) and the connecting part (12) are integrally formed.