CN210541860U

CN210541860U - Brain surgery operation fixed marker

Info

Publication number: CN210541860U
Application number: CN201920975561.1U
Authority: CN
Inventors: 王荣军; 孙家茂; 张晶
Original assignee: Hoz Minimally Invasive Medical Technology Beijing Co ltd
Current assignee: Hoz Minimally Invasive Medical Technology Beijing Co ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-19
Anticipated expiration: 2029-06-26

Abstract

The embodiment of the utility model discloses a brain surgery fixing marker, which comprises a self-tapping screw, which is fixed in a pre-drilled hole on the skull to form a three-dimensional directional marker; the expansion sleeve is sleeved on the self-tapping screw and used for expanding under the supporting force of the self-tapping screw, wherein the expansion sleeve can freely penetrate through a pre-drilled hole in the skull in a contraction state, and a limiting groove for embedding the wall of the pre-drilled hole in an expansion state of the expansion sleeve is formed in the outer wall of the expansion sleeve. The utility model discloses a pre-drilling hole on the skull, and set up self-tapping screw and inflation cover, put into the pre-drilling hole on the skull with the inflation cover earlier, twist the inflation cover with self-tapping screw again, utilize the inflation cover to take place the inflation under the self-tapping screw supporting force effect, make the spacing groove card on the inflation cover outer wall on the pre-drilling hole of skull, thereby fix self-tapping screw on the skull, form the marker, its fixed form is firm reliable, be difficult to the aversion, it is accurate to ensure to fix a position among the operation process, the efficiency of performing the operation is improved.

Description

Brain surgery operation fixed marker

Technical Field

The embodiment of the utility model provides a relate to medical instrument technical field, concretely relates to brain surgery operation fixed marker.

Background

When drainage, removal or tumor craniotomy and excision operations are performed, accurate positioning needs to be performed on intracranial focus targets, craniotomy puncture points and craniotomy incisions. Typically, the incision is located by attaching a marker to the patient's skin based on the location of the lesion on the cerebrovascular, ventricular or CT images.

However, the markers attached to the skin during the brain surgery are not firmly fixed and easily move, which may cause inaccurate marking, thereby causing the failure of the surgery and directly affecting the surgery effect.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a brain surgery operation fixed marker to solve the problem that the mark that pastes on skin among the prior art is fixed not firm.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

according to a first aspect of embodiments of the present invention, a brain surgery fixation marker comprises:

a self-tapping screw fixed in a pre-drilled hole in the skull to form a stereotactic marker;

the expansion sleeve is sleeved on the self-tapping screw and used for expanding under the supporting force action of the self-tapping screw, the expansion sleeve can freely penetrate through the pre-drilled hole in the skull in the contraction state, and a limiting groove for embedding the hole wall of the pre-drilled hole in the expansion state of the expansion sleeve is formed in the outer wall of the expansion sleeve.

Furthermore, the expansion sleeve comprises a sleeve head and a sleeve body which is integrally formed at the bottom end of the sleeve head, the limiting groove is formed in the outer wall of the sleeve body, and the sleeve head is positioned outside the pre-drilled hole after the sleeve body is placed in the pre-drilled hole.

Furthermore, a plurality of limiting grooves are formed in the outer wall of the expansion sleeve along the length direction of the expansion sleeve.

Furthermore, a gap strip is arranged on the outer wall of the expansion sleeve along the length direction of the expansion sleeve.

Further, the gap strip is provided with at least one gap strip.

Further, the screw head of the tapping screw is a hexagonal head.

Furthermore, a flange plate is fixedly connected to the bottom end of the screw head of the tapping screw, and the diameter of the flange plate is larger than the caliber of the inlet of the expansion sleeve.

The embodiment of the utility model provides a have following advantage: in the process of brain surgery, through pre-drilling holes in the skull, and set up self-tapping screw and expansion sleeve, put into the pre-drilling holes in the skull with the expansion sleeve earlier, screw in the expansion sleeve with the self-tapping screw again, utilize the expansion sleeve to take place the inflation under the self-tapping screw supporting force effect, make the spacing groove card on the expansion sleeve outer wall on the pre-drilling holes of skull, thereby fix the self-tapping screw on the skull, form the sign that supplies the operation, its fixed form is firm reliable, be difficult to shift, ensure to fix a position accurately in operation process such as brain surgery SEEG operation, improve the operation efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic overall structure diagram of a brain surgery fixing marker according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an expansion sleeve for fixing a marker in brain surgery according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a self-tapping screw for fixing a marker in brain surgery according to an embodiment of the present invention;

in the figure: 1. a self-tapping screw; 2. an expansion sleeve; 21. sleeving heads; 22. sleeving a body; 23. a slit strip; 3. a limiting groove; 4. a flange plate.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 2, the embodiment of the present invention provides a brain surgery fixing marker, which includes a tapping screw 1 and an expansion sleeve 2, specifically configured as follows:

the self-tapping screw 1 is mainly used for being fixed in a pre-drilled hole on a skull to form a three-dimensional directional marker;

the expansion sleeve 2 is made of plastic with excellent toughness, or can be made of PC + fiber composite materials through 3D printing, and the expansion sleeve 2 is guaranteed not to damage the skull. The expansion sleeve 2 is placed in a pre-drilled hole of a skull, and the self-tapping screw 1 is screwed into the expansion sleeve 2, so that the expansion sleeve 2 expands under the supporting force of the self-tapping screw 1 and is fixed at the pre-drilled hole. Specifically, the expansion sleeve 2 comprises a sleeve head 21 and a sleeve body 22 which is integrally formed at the bottom end of the sleeve head 21, wherein a sleeve opening of the expansion sleeve 2 is formed in the sleeve head 21, the sleeve body 22 of the expansion sleeve 2 can freely penetrate through a pre-drilled hole in a skull in a contraction state, in order to prevent the expansion sleeve 2 from falling into the skull during installation, the size of the sleeve head 21 of the expansion sleeve 2 is larger than the diameter of the pre-drilled hole, and the sleeve head 21 is positioned outside the pre-drilled hole after the sleeve body 22 is placed into the pre-drilled hole.

As described above, in order to facilitate the fixation of the expansion sleeve 2, the outer wall of the sleeve body 22 is provided with the limiting groove 3 which is embedded into the hole wall of the pre-drilled hole under the expansion state of the expansion sleeve 2, the bulges at the two sides of the limiting groove 3 are used for respectively forming steps for clamping the upper edge and the lower edge of the pre-drilled hole of the skull, wherein the limiting groove 3 is annularly arranged along the outer wall of the sleeve body 22, during the specific operation, the expansion sleeve 2 is only required to be placed in the pre-drilled hole of the skull firstly, and then the self-tapping screw 1 is screwed into the expansion sleeve 2, so that the groove on the sleeve body 22 of the expansion sleeve 2 is formed until the edge of the pre-drilled hole of the. Preferably, a plurality of limiting grooves 3 are formed in the outer wall of the expansion sleeve 2 along the length direction of the expansion sleeve 2, namely, a plurality of steps are formed on the outer wall of the sleeve body 22 of the expansion sleeve 2, and the pre-drilled hole edge of the skull is configured in the limiting grooves 3 at different positions, so that the screwing depth of the tapping screw 1 into the skull can be conveniently adjusted.

The embodiment of the utility model provides a through in the operation process of brain department, through the pre-drilling on the skull, and set up self-tapping screw 1 and inflation cover 2, earlier put into the pre-drilling on the skull with inflation cover 2, twist self-tapping screw 1 inflation cover again, utilize inflation cover 2 to take place the inflation under the effect of self-tapping screw 1 holding power, make 3 cards of spacing groove on the 2 outer walls of inflation cover on the pre-drilling of skull, thereby fix self-tapping screw 1 on the skull, form the marker that supplies the operation, its fixed form is firm reliable, be difficult to the aversion, ensure to fix a position accurately like operation processes such as brain surgery SEEG operation, improve operation efficiency.

Example 2

The difference from the embodiment 1 is that, as shown in fig. 1 and fig. 2, a slit strip 23 is provided on the outer wall of the sleeve body 22 of the expansion sleeve 2 along the length direction of the sleeve body 22, and the arrangement of the slit strip 23 improves the expansion degree of the expansion sleeve 2, so that the tapping screw 1 can be easily screwed into the expansion sleeve 2. Preferably, at least one slit strip 23 is provided, for example, three slit strips 23 are arranged on the sleeve body 22 in the circumferential direction.

Example 3

The difference from the embodiment 1 is that, as shown in fig. 1 and fig. 3, a flange plate 4 is fixedly connected to the bottom end of the screw head of the tapping screw 1, wherein the diameter of the flange plate 4 is larger than the diameter of the sleeve head 21 of the expansion sleeve 2, and the flange plate 4 is utilized to form a limit at the sleeve opening of the expansion sleeve 2, so that the tapping screw 1 can be prevented from being screwed too deep to affect the skull.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A brain surgical fixation marker, comprising:

the self-tapping screw (1) is fixed in a pre-drilled hole on a skull to form a three-dimensional directional marker;

the expansion sleeve (2) is sleeved on the self-tapping screw (1) and used for expanding under the action of supporting force of the self-tapping screw (1), wherein the expansion sleeve (2) can freely penetrate through a pre-drilled hole in a skull under a contraction state, and a limiting groove (3) for embedding the hole wall of the pre-drilled hole under the expansion state of the expansion sleeve (2) is formed in the outer wall of the expansion sleeve (2).

2. The brain surgery fixation marker of claim 1, wherein: expansion sleeve (2) are including pullover (21) and integrated into one piece sleeve body (22) in pullover (21) bottom, spacing groove (3) are seted up on the outer wall of sleeve body (22), pullover (21) are fixed a position in the outside of predrilling after putting into predrilling in sleeve body (22).

3. The brain surgery fixation marker of claim 1, wherein: a plurality of limiting grooves (3) are formed in the outer wall of the expansion sleeve (2) along the length direction of the expansion sleeve (2).

4. The brain surgery fixation marker of claim 1, wherein: and a gap strip (23) is arranged on the outer wall of the expansion sleeve (2) along the length direction of the expansion sleeve (2).

5. The brain surgery fixation marker of claim 4, wherein: at least one slit strip (23) is arranged.

6. The brain surgery fixation marker of claim 1, wherein: the screw head of the self-tapping screw (1) is a hexagonal head.

7. The brain surgery fixation marker of claim 1, wherein: the bottom end of the screw head of the tapping screw (1) is fixedly connected with a flange plate (4), and the diameter of the flange plate (4) is larger than the caliber of the sleeve inlet of the expansion sleeve (2).