KR102714192B1 - Scalp Suture Clips To Secure Brain Implanted Electrodes - Google Patents

Abstract

The present invention can provide a scalp suture clip including a first unit having a fastening protrusion formed on one surface; and a second unit having a fastening groove formed; wherein the first unit is positioned between the scalp and the cranial canal, the fastening protrusion penetrates the scalp and is fastened to the fastening groove, and an electrode fixing groove is formed in the first unit.

Description

{Scalp Suture Clips To Secure Brain Implanted Electrodes}

The present invention relates to a scalp suture clip capable of quickly suturing the scalp while simultaneously fixing a brain-inserted electrode.

There has been a long history of research on the detection of electrical signals occurring in the central nervous system of the brain and related electrical stimulation therapy. In the early stages of research, brain electrical signal detection technology was used to find the area where recurrent epilepsy occurs or to obtain functional maps of specific areas of the brain, especially the motor and language areas, during surgery. Recently, studies on brain electromagnetic stimulation using repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) have shown that it is effective in treating depression, Parkinson's disease, post-stroke functional impairment, epilepsy, and chronic neuropathic pain. Electrical stimulation effectively improves symptoms by activating or inhibiting connections between nerves. Existing devices for electrical stimulation of the cerebral cortex are mainly transcranial stimulation devices, and stimulation through these devices has the disadvantage of unnecessarily transmitting stimulation to a wider area of the cortex than the intended lesion area of the cerebral cortex. In addition, existing electrical stimulation devices have a problem in that strong stimulation must be applied to stimulate the cerebral cortex with the desired intensity due to stimulation through the transcranial nerve. In order to solve this problem, Korean Patent No. 1136880 discloses an electrical stimulation device that can provide electrical stimulation to a wide area of the cerebral cortex while minimizing the incision of the scalp and skull as much as possible. Meanwhile, electrodes for providing electrical stimulation to nerve cells must exhibit conductivity, so they are generally made of metal and must be able to directly contact nerve tissue to allow charge exchange.

The purpose of the present invention is to provide a clip that can quickly and easily suture the scalp while stably fixing a brain-implanted electrode.

In order to achieve the above object, the present invention provides a scalp suture clip including a first unit having a fastening protrusion formed on one side; and a second unit having a fastening groove formed; wherein the first unit is positioned between the scalp and the cranial canal, and the fastening protrusion penetrates the scalp and is fastened to the fastening groove.

In addition, the first unit provides a scalp suture clip having an electrode fixing groove formed therein.

Additionally, the electrode fixing groove provides a scalp suture clip formed on one side of the first unit.

In addition, a surgical scalp clip is provided in which a plurality of elastic arms facing each other are formed on both sides of the electrode fixing groove.

In addition, a scalp suture clip is provided between the ends of the plurality of elastic rocks facing each other, the ends being spaced apart from each other by a predetermined distance.

In addition, a sharp portion is formed at the end of the above-mentioned fastening projection, and a scalp suture clip is provided in which the cross-sectional area of the sharp portion becomes smaller as it goes toward the end.

In addition, a scalp suture clip having a step formed on one side of the above-mentioned fastening projection is provided.

In addition, a hooking groove is formed on one side of the fastening groove, and a scalp suture clip is provided in which the step is fastened to the hooking groove when the fastening projection is fastened to the fastening groove.

In addition, the fastening projection includes an extension member that separates the sharp portion from one side of the first unit, so that the second unit fastened to the first unit provides a scalp suture clip with faces facing each other spaced apart by a predetermined distance.

As another embodiment of the present invention, the present invention can provide a method for using a scalp suture clip, including the steps of: fixing a brain insertion electrode to an electrode fixing groove; inserting a first unit into a space between the skull and the scalp on one side of a patient's head incision; pressing the scalp arranged at an end of a fastening projection to penetrate the scalp with the fastening projection; penetrating the scalp on the other side of the patient's head incision with the fastening projection protruding through the penetration; and fastening a second unit to the fastening projection protruding through the scalp on the other side to perform suturing.

The present invention can simultaneously perform scalp suturing and fixation of brain-implanted electrodes, thereby improving the speed and convenience of medical procedures.

In addition, the first unit and the second unit are joined by applying pressure to the laminated scalp and electrodes, so that the scalp can be sealed without any gaps.

Additionally, it is harmless to the human body because it is formed from biocompatible materials.

Figure 1 shows a scalp suture clip with the first unit and the second unit connected.
Figure 2a is a perspective view showing the first unit of the present invention.
Figure 2b shows the appearance of a circuit board portion fixed to the electrode fixing groove of the first unit of the present invention.
Figure 3 specifically shows the appearance of the fastening projection of the first unit of the present invention.
Figure 4 schematically illustrates a state in which the first unit and the second unit of the present invention are connected and the scalp is sutured.
Figures 5 and 6 are perspective views showing the appearance of the second unit of the present invention.
Figure 7 shows a cross-sectional view of a fastening groove formed in the second unit.
Figures 8a and 8b schematically illustrate sequentially a method of using a scalp suture clip according to the present invention.

The invention described below can be modified under various conditions and can have various embodiments, and specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the invention described below to specific embodiments, and it should be understood that it includes all modifications, equivalents, or substitutes included in the spirit and scope of the technology described below.

FIG. 1 and FIG. 2a illustrate a scalp suture clip (10) according to one embodiment of the present invention. Referring to FIG. 1, the scalp suture clip (10) may be a clip (10) for suture of the scalp in which a first unit (100) and a second unit (200) are connected to each other, and the scalp suture clip (10) may include a first unit (100) and a second unit (200).

A plurality of fastening protrusions (110) may be formed protruding on one side of the first unit (100), and preferably, two may be formed. The plurality of fastening protrusions (110) may be arranged at a predetermined distance from each other so that a substrate portion of a brain insertion electrode may be positioned between them.

A brain implantable electrode may include an electrode portion and a circuit board portion. The electrode portion may be a graphene electrode that is attached to or inserted into the brain exposed by cutting open the patient's skull, and the circuit board portion may be a flexible printed circuit board (FPCB) that is connected to the electrode portion and connects the electrode portion and an external device.

Brain implantable electrodes, which are inserted or attached to the brain, can receive electrical signals generated in the brain or stimulate the brain with electrical signals.

The fastening projection (110) may include an extension member (111), a sharp portion (112), and a step (113).

The extension member (111) is a straight member that protrudes in a direction perpendicular to one side of the first unit (100), and by separating the distance between the sharp part (112) formed at the end of the extension member (111) and one side of the first unit (100), the scalp and brain insertion electrode can be positioned in the space formed between the sharp part (112) and one side of the first unit (100), thereby fixing the scalp.

The cross-sectional shape of the extension member (111) is not limited thereto, but may be formed into, for example, a circle, a square, a triangle, etc.

Referring to FIGS. 3 and 4, a sharp portion (112) having a pointed shape may be formed at the end of the extension member (111). The sharp portion (112) may be inserted into and fastened to the fastening groove (210) of the first unit (200).

The sharp part (112) is formed in a shape in which the cross-sectional area gradually decreases toward one end, and the end may have a sharp and pointed shape.

The sharp part (112) is formed in a shape with a sharp and pointed end, and when the scalp is placed on the sharp part (112) and the scalp is pressed against the sharp part (112), the sharp part (112) can pierce through the scalp.

One end of the sharp portion (112) may form a step (113) on one side of the extension member (111). The step (113) may be coupled to a catch groove (211) formed in the catch groove (210) when the sharp portion (112) is inserted into the catch groove (210) and fastened, and the step (113) coupled to the catch groove (211) may be fixed so that the sharp portion (112) is not separated from the catch groove (210) by being caught in the catch groove (211) when the fastening projection (110) moves in a direction opposite to the direction in which the fastening groove (210) is fastened.

An electrode fixing groove (120) may be formed on one side of the first unit (100).

Referring to FIG. 2b, the circuit board portion of the brain insertion electrode is fitted into the electrode fixing groove (120) and can be fixed within the electrode fixing groove (120).

Deep brain stimulation (DBS) is a treatment method that involves inserting electrodes into the brain that can detect signals generated from the brain and send electrical stimulation to the brain. The electrodes inserted into the brain can be connected to a wired circuit board so that electrical signals generated from the brain can be transmitted to the outside of the body.

The electrode fixing groove (120) can prevent the circuit board part fixed in the groove from coming into contact with the incision on the patient's head, thereby preventing contamination of the incision.

Elastic rocks (121) can be formed at both ends of the electrode fixing groove (120) facing each other.

The ends of the elastic rocks (121) on both sides can be spaced apart by a predetermined distance.

The elastic arm (121) can be elastically deformed within a certain range. The elastic arm (121) is elastically deformed by the thickness of the circuit board that is seated in the substrate fixing groove (120), and the circuit board can be fixed to the electrode fixing groove (120) by applying pressure by the restoring force of the elastic arm (121).

Referring to FIGS. 5 and 6, the second unit (200) may be a cover that is fastened to the first unit (100). A fastening groove (210) may be formed on one surface of the second unit (200), and a fastening projection (110) may be fastened to the fastening groove (210).

A plurality of fastening grooves (210) can be formed, and can be formed in the same number as the fastening projections (110). A plurality of fastening grooves (210) can be spaced apart from each other by a predetermined distance.

At least a portion of the fastening groove (210) can be formed in a shape corresponding to the shape of the sharp portion (112), so that the sharp portion (112) can be coupled to the fastening groove (210).

A catch groove (211) may be formed on one side of the fastening groove (210). A step (113) may be inserted into the catch groove (211) to secure the first unit (100) and the second unit (200) from being separated after the fastening projection (110) is fastened to the fastening groove (210).

A sharp groove (212) can be formed in the fastening groove (210), and an end of a sharp portion (112) can be inserted into the sharp groove (212).

The first unit (100) and the second unit (200) may be formed of a biocompatible material. The first unit (100) and the second unit (200) may be formed of, but are not limited to, a biocompatible metal such as gold, silver, platinum, stainless steel, titanium, or a biocompatible polymer material such as polyether ether ketone (PEEK), C&B resin, poly(lactide-co-glycolide), PLGA, poly(ε-caprolactone), PCL, poly(lactic acid), PLA, PLCL (poly(lactide-co-ε-caprolactone)).

FIGS. 8A to 8B illustrate a method of using a scalp suture clip (10) according to the present invention, and with reference to FIGS. 7A to 7B, the method includes: a step of inserting a first unit (100) into a space formed by spreading apart the skull and scalp on one side of a patient's head incision; a step of fixing a brain insertion electrode to an electrode fixing groove (120); a step of pressing the scalp on one side of the incision positioned above a sharp portion (112) so that the sharp portion (112) pierces the scalp; a step of placing a brain insertion electrode on the scalp on one side of the incision; a step of stacking the scalp on the other side of the incision positioned above the scalp on one side of the incision position and piercing it with the sharp portion (112); and a step of connecting the second unit (200) with the protruding sharp part (112) may be included.

The step of fixing the brain insertion electrode to the electrode fixing groove (120) includes fixing the circuit board part of the brain insertion electrode by inserting it into the electrode fixing groove (120), and the circuit board part extended in the longitudinal direction from the fixed circuit board part can be placed on the upper part of the scalp on one side of the incision.

The scalp located on one side of the incision may be the scalp located in the lower layer when using the scalp suture clip according to the present invention, and may be the scalp in contact with the lower surface of the circuit board portion.

The scalp located on the other side of the incision may be the scalp located in the upper layer when using the scalp suture clip according to the present invention, and may be the scalp in contact with the upper surface of the circuit board portion.

In the space between the first unit and the second unit, the scalp located on one side of the incision, the circuit board portion, and the scalp located on the other side can be sequentially stacked from below.

Although the present technology has been described through the above examples, the present technology is not limited thereto. The above examples may be modified or changed without departing from the spirit and scope of the present technology, and a person skilled in the art will recognize that such modifications and changes also belong to the present technology.

10: Scalp suture clip
100 : 1st unit
110 : Fastening protrusion
111 : Absence of extension
112 : Sharp Section
113 : Single chin
120 : Substrate fixing groove
121 : Elastic cancer
200 : 2nd unit
210 : Conclusion Home
211 : Hanging Home
212 : Sharp Home

Claims (10)

A first unit having a fastening projection formed on one side; and
A second unit having a fastening groove formed therein;
The above first unit is placed between the scalp and the skull, and the fastening projection penetrates the scalp and is fastened to the fastening groove.
The first unit above has an electrode fixing groove formed therein.
Scalp suture clip. delete In the first paragraph,
The above electrode fixing groove is a scalp suture clip formed on one side of the first unit. In the third paragraph,
A scalp suture clip having elastic arms formed facing each other on both sides of the electrode fixing groove. In paragraph 4,
A scalp suture clip with a predetermined distance between the ends of the plurality of elastic rocks facing each other. In the first paragraph,
A sharp part is formed at the end of the above-mentioned fastening projection,
The above-mentioned sharp part is a scalp suture clip whose cross-sectional area becomes smaller as it goes towards the end. In paragraph 6,
The above fastening projection includes an extension member that separates the sharp portion from one side of the first unit,
A scalp suture clip wherein one end of the above-mentioned sharp portion forms a step against one side of the above-mentioned extension member. In paragraph 7,
A catch groove is formed on one side of the above fastening groove.
A scalp suture clip in which the above fastening projection is fastened to the above fastening groove and the above step is fastened to the above hooking groove. A first unit having a fastening projection formed on one side; and
A second unit having a fastening groove formed therein;
The above first unit is placed between the scalp and the skull, and the fastening projection penetrates the scalp and is fastened to the fastening groove.
A sharp part is formed at the end of the above-mentioned fastening projection,
The cross-sectional area of the above sharp part becomes smaller as it goes towards the end.
A scalp suture clip, wherein the above-mentioned fastening projection includes an extension member that separates the sharp portion from one side of the first unit, so that the second unit connected to the first unit has faces spaced apart from each other by a predetermined distance. delete