KR20180120889A - Medical inserting apparatus and manufacturing method thereof - Google Patents

Medical inserting apparatus and manufacturing method thereof Download PDF

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Publication number
KR20180120889A
KR20180120889A KR1020170054788A KR20170054788A KR20180120889A KR 20180120889 A KR20180120889 A KR 20180120889A KR 1020170054788 A KR1020170054788 A KR 1020170054788A KR 20170054788 A KR20170054788 A KR 20170054788A KR 20180120889 A KR20180120889 A KR 20180120889A
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KR
South Korea
Prior art keywords
screw body
conductor member
coating layer
exposed
screw
Prior art date
Application number
KR1020170054788A
Other languages
Korean (ko)
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KR101958083B1 (en
Inventor
김경태
Original Assignee
경북대학교 산학협력단
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Application filed by 경북대학교 산학협력단 filed Critical 경북대학교 산학협력단
Priority to KR1020170054788A priority Critical patent/KR101958083B1/en
Priority to PCT/KR2018/003073 priority patent/WO2018199469A1/en
Publication of KR20180120889A publication Critical patent/KR20180120889A/en
Application granted granted Critical
Publication of KR101958083B1 publication Critical patent/KR101958083B1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • A61C8/0013—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy with a surface layer, coating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/08—Materials for coatings
    • A61L31/082—Inorganic materials
    • A61L31/086—Phosphorus-containing materials, e.g. apatite
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2420/00—Materials or methods for coatings medical devices
    • A61L2420/02—Methods for coating medical devices

Abstract

The present invention discloses a medical insertion device which accurately identifies a type of tissue in contact with a screw body inserted into a human body and prevents a nerve from being damaged by screw body insertion, and a manufacturing method thereof. The medical insertion device comprises: the screw body inserted into the human body; a conductor member formed to be exposed to the screw body, and extending from an upper end of the screw body to a lower end of the screw body in the longitudinal direction of the screw body; and a coating layer formed on an outer circumferential surface of the screw body so that both ends of the conductor member exposed to the screw body are exposed only by a predetermined length.

Description

[0001] MEDICAL INSERTION APPARATUS AND MANUFACTURING METHOD THEREOF [0002]

The present invention relates to a medical insertion device and a method of manufacturing the same, and more particularly, to a medical insertion device for accurately recognizing the type of tissue contacted with a screw body inserted into a human body, And a manufacturing method thereof.

The medical insertion device may be inserted into a human body for surgery or treatment, and may include a pedicle screw inserted into the vertebra, an implant instead of a tooth, and the like.

Specifically, patients with severe spinal stenosis receive surgery to widen the narrowed spinal canal. This is called neuro-decompression, which removes the surrounding bones and joints and enlarges the space, thereby releasing the nerves that have been stressed for a long time.

Once these neuro-decompression procedures are performed, each node becomes unstable. If left untreated, it causes various problems in the long term.

Therefore, vertebral fusion should stabilize the condition of the spine.

It fixes the adjacent vertebrae using a pedicle screw and combines them into a single bone through bone grafting.

In addition, in the case of the implant, the jaw bone having increased volume so that the implant can be sufficiently wrapped through additional operations such as bone grafting, osteotomy, or the like at the site where the tooth is missing or the jaw bone at the site where the tooth is pulled out, To restore the function of the natural teeth.

Recently, treatment or surgery related to spine or teeth has been rapidly increasing, and researches on medical insertion devices are being actively conducted.

Korean Patent Registration No. 10-1599603 (Publication date 2013.03.03.)

The present invention provides a medical insertion device and a method for manufacturing the medical insertion device, which can precisely grasp the type of tissue contacting a screw body inserted into a human body and prevent nerve damage by screw insertion. It has its purpose.

Another object of the present invention is to provide a medical insertion device and a method of manufacturing the same that can improve the biocompatibility by coating a middle part of a screw body with a biocompatible material such as HA (Hydroxyapatite).

It is still another object of the present invention to provide a medical insertion device for coating a middle portion of a screw body with a biocompatible material such as HA to prevent peripheral nerve damage by a conductor member when using an electrocautery machine in reoperation, And a manufacturing method thereof.

According to an aspect of the present invention, there is provided a medical insertion device including: a screw body inserted into a human body; A conductor member formed to be exposed to the screw body and extending from the upper end of the screw body to the lower end of the screw body along the longitudinal direction of the screw body; And a coating layer formed on an outer circumferential surface of the screw body such that both ends of the conductor member formed on the screw body are exposed only by a predetermined length.

In one embodiment of the present invention, a groove is formed in the longitudinal direction from the upper end to the lower end of the screw body, and the conductor member is inserted into the groove so as to expose one surface.

In one embodiment of the present invention, one end of the conductor member is electrically connected to a driver screwed to a head integrally formed on the screw body at an upper end of the screw body, and the other end of the conductor member is connected to the screw The lower end of the body is in contact with the human body and the coating layer is formed such that one end of the conductor member and the other end of the conductor member are exposed only by a predetermined length.

In one embodiment of the present invention, it is preferable that the coating layer is formed in a straight line along the conductor member.

In one embodiment of the present invention, it is preferable that the conductor member is plated on the outer circumferential surface of the screw body along the longitudinal direction of the screw body, or is formed on the outer circumferential surface of the screw body.

In one embodiment of the present invention, the coating layer is preferably formed of a biocompatible material.

According to another aspect of the present invention, there is provided a method of manufacturing a medical insertion device, the method comprising the steps of: forming a screw member to expose a conductor member, the conductor member being inserted into the screw body from an upper end of the screw body along a longitudinal direction of the screw body; A conductor member forming step of extending to a lower end; And forming a coating layer on the outer circumferential surface of the screw body such that both ends of the conductor member exposed on the screw body are exposed only by a predetermined length.

In one embodiment of the present invention, the step of forming a conductor member includes the steps of: forming a groove in a longitudinal direction from an upper end to a lower end of the screw body; And inserting the conductor member into the groove to expose one surface of the conductor member.

In one embodiment of the present invention, the coating layer forming step may include forming a coating layer on the outer circumferential surface of the screw body so that both ends of the conductor member are exposed only by a predetermined length.

In one embodiment of the present invention, the coating layer forming step may include forming a coating layer such that both ends of the conductor member are exposed only by a predetermined length, and forming the coating layer in a straight shape along the conductor member.

In one embodiment of the present invention, the step of forming the conductor member comprises the steps of forming a plating on the outer circumferential surface of the screw body along the longitudinal direction of the screw body, and attaching and forming on the outer circumferential surface of the screw body .

INDUSTRIAL APPLICABILITY The medical insertion device and the method of manufacturing the same according to the present invention can accurately grasp the type of tissue that is in contact with the screw body inserted into the human body, thereby preventing the nerve from being damaged when the screw is inserted.

In addition, biocompatibility can be improved by coating the middle part of the screw body with a biocompatible material such as HA.

In addition, the middle portion of the screw body is coated with a biocompatible material such as HA to prevent the peripheral nerve from being damaged by the conductor member when the electric fusing machine is used in reoperation.

1A and 1B are perspective views of a medical insertion device according to the present invention.
2A to 3B are views for explaining a process of forming a conductor member.
4A and 4B are perspective views of a medical insertion device according to an embodiment of the present invention.
5 is a perspective view of a medical insertion device according to an embodiment of the present invention.
6A and 6B are perspective views of a medical insertion device according to another embodiment of the present invention.
7 is a process chart for explaining a method of manufacturing a medical insertion device according to an embodiment of the present invention.
8 is a view illustrating a connection state between a medical insertion device, a current generator, and a current measuring device according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a medical insertion device and a method of manufacturing the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the embodiment of the present invention, a bifurcated screw inserted into a bone tissue adjacent to a nerve by a medical insertion device, particularly, a spinal screw inserted into a spine or the like will be described as an example.

1A and 1B are perspective views of a medical insertion device according to the present invention.

As shown in FIG. 1A, the medical insertion apparatus 100 according to the present invention can be roughly divided into a screw body 110 and a head 120.

The screw body 110 is inserted into the inside of the human body, and a screw thread is formed on the outer circumferential surface of the screw body 110 to be inserted into the inside of the human body.

Since the screw body 110 can be inserted into a vertebra, tooth or muscle, it can be made of a titanium material which is excellent in biocompatibility and strength and used for various implant materials.

A tapping screw may be formed at the lower end of the screw body 110. The tapping screw may advance the drilling operation before the screw body 110 is inserted into the human body, The body 110 can be inserted more securely.

The screw body 110 may have a groove 115 formed in the longitudinal direction from the upper end to the lower end of the screw body 110 as shown in FIG.

Here, the groove 115 may extend from the upper end of the screw body 110 to the central portion of the lower end of the screw body 110 in the longitudinal direction.

As shown in FIG. 1B, the conductor member 130 may be installed in the groove 115 formed in the screw body 110 to expose one surface.

The conductor member 130 senses the contact with the nerve when the screw body 110 is inserted into the human body. As shown in FIG. 1B, the conductor body 130 is formed along the groove 115 formed in the screw body 110 And may be formed in a straight shape such that one side is exposed to the outside of the screw body 110 in the longitudinal direction.

The head 120 is integrally coupled to the upper end of the screw body 110. The head 120 may be formed with a groove 115 formed in the screw body 110 and a hole 121 formed in a straight line.

One end of the conductor member 130 may be extended to the head 120 through a hole 121 formed in the head 120.

The conductor member 130 may be formed in the groove 115 formed in the screw body 110 in a plating manner.

2A, a conductor member may be formed by a plating method in a groove formed in a screw body, and a state in which a conductor member is formed in a groove by a plating method is the same as that of FIG. 2B .

In addition, the conductor member 130 may be formed in a manner that the conductor member 130 is fitted into the groove 115 formed in the screw body 110.

As shown in FIG. 3A, a conductor member can be fitted into a groove formed in a screw body, and a state in which a conductor member is fitted in the groove is shown in FIG. 3B.

4A and 4B are perspective views of a medical insertion device according to an embodiment of the present invention.

The medical inserting apparatus 100 according to an embodiment of the present invention includes a screw body 110, a head 120, a conductor member 130, and a coating layer 140.

The screw body 110 is inserted into the inside of the human body, and a screw thread is formed on the outer circumferential surface of the screw body 110 to be inserted into the inside of the human body.

The screw body 110 is formed with a groove 115 in the longitudinal direction from the upper end to the lower end of the screw body 110 and a conductive member 130 may be installed in the groove 115.

The head 120 is integrally coupled to an upper end of the screw body 110 and a groove 125 may be formed inside the head 120 so that an end of a driver (not shown) may be inserted.

The shape of the groove 125 may be provided corresponding to the end shape of the driver.

As described above, the groove 125 formed in the inner side of the head 120 may be formed with a screw groove so that the screw 125 can be screwed onto the outer peripheral surface of the driver.

Here, the screwdriver inserts the screw body 110 into the human body or removes the screw body 110 inserted into the human body from the human body, and the screw groove formed in the groove 125 of the head 120 and the screw groove formed in the outer peripheral surface of the screwdriver When the screwdriver is screwed, the screwdriver and the screw body 110 are coupled. When the screwdriver is rotated, the screw body 110 coupled with the screwdriver is also rotated clockwise or counterclockwise to be inserted into or removed from the human body do.

The conductor member 130 may extend from the upper end of the screw body 110 to the central portion of the lower end of the screw body 110 in a strand shape along the groove 115 formed in the screw body 110 .

The number of the conductor members 130 is not limited thereto and the number of the conductor members 130 is not limited to the number of the conductor members 130. In the present embodiment, It is natural that the screw body 110 can be formed.

The conductor member 130 may be formed in the groove 115 formed in the screw body 110 so as to expose one surface thereof or may be fitted in the groove 115 formed in the screw body 110. [

One end of the conductor member 130 formed on the screw body 110 may be formed on the inside of the head 120 through the hole 121 formed in the head 120 so that the head 120 One end of the conductor member 130 formed inside the head 120 may be electrically connected to a driver screwed to the head 120.

A groove 115 is formed in the longitudinal direction of the screw body 110 and a conductor member 130 is formed on the screw body 110 such that one side of the conductor member 130 is exposed in the longitudinal direction along the groove 115 Accordingly, the present invention can be easily applied to an existing screw body 110.

Since the conductor member 130 can be formed on the screw body 110 through a relatively simple process as compared with the process of forming the conductor member 130 in the screw body 110, The time and cost required for manufacturing the screw body 110 can be reduced.

As described above, the conductor member 130 may be formed of platinum, gold, silver, tungsten, or the like, which is excellent in conformity to the human body and has excellent electric conductivity.

The coating layer 140 is formed on the outer circumferential surface of the screw body 110 such that only one end of the conductive member 130 is exposed.

Here, the coating layer 140 is preferably formed of a material having excellent biocompatibility, for example, a HA (Hydroxy Apatite) coating layer having the same composition as that of a human bone.

4A, a coating layer 140 is formed on one side of a conductor member 130 formed on the inner side of the head 120 and on a lower side of the screw body 110, And the other ends may be formed to be exposed only by a predetermined length.

4B, the coating layer 140 is formed such that both ends of the conductor member 130 are exposed only by a predetermined length, and the coating layer 140 is formed in a straight shape in the portion where the conductor member 130 is formed along the conductor member 130 .

One end of the conductor member 130 exposed by the coating layer 140 is electrically connected to a driver screwed to the head 120 formed integrally with the screw body 110 at the upper end of the screw body 110, The other end of the member (130) is in contact with the human body at the lower end of the screw body (110).

The coating layer 140 is formed on the outer circumferential surface of the screw body 110 so as to expose only the both ends of the conductor member 130 formed so as to expose one side in the longitudinal direction along the groove 115 formed in the screw body 110, It is possible to prevent damage to the peripheral nerve caused by the conductor member 130 during reoperation.

For example, when the head 120 is peeled off using an electric fusing device during rewinding, thermal energy of the electric fryer may be transmitted to the nerve through the conductor member 130 to damage the peripherals of the conductor member 130 However, if the coating layer 140 is formed on the outer circumferential surface of the screw body 110 so as to expose both ends of the conductor member 130 as in the present invention, the area of contact of the conductor member 130 with the nerve is minimized, It is possible to prevent the surrounding nerve from being damaged by the nerve stimulation unit 130.

In addition, the coating layer 140 may be formed as an HA coating layer to improve biocompatibility.

Meanwhile, in one embodiment of the present invention, the screw body 110 of the medical insertion device may have a conical shape at its end (lower end) as shown in Figs. 1A to 4B, , Or may be formed flat like a bolt.

6A and 6B are perspective views of a medical insertion device according to another embodiment of the present invention.

In another embodiment of the present invention, the conductor member 130 may be formed to be exposed on the outer circumferential surface of the screw body 110.

That is, the conductor member 130 may extend straight from the upper end of the screw body 110 to the lower end of the screw body 110 along the longitudinal direction of the screw body 110 on the outer peripheral surface of the screw body 110.

The conductor member 130 may be formed to be exposed and attached to the outer circumferential surface of the screw body 110 and may be plated on the outer circumferential surface of the screw body 110.

As described above, one end of the conductor member 130 exposed on the outer circumferential surface of the screw body 110 can be electrically connected to a driver screwed to the head 120.

6A, the coating layer 140 may be formed on the outer circumferential surface of the screw body 110 such that only the both ends of the conductor member 130 exposed on the outer circumferential surface of the screw body 110 are exposed, The coating layer 140 may be formed in a straight line only on the portion where the conductor member 130 is formed along the conductor member 130 as shown in FIGS.

7 is a process chart for explaining a method of manufacturing a medical insertion device according to an embodiment of the present invention.

First, one side of the conductor member 130 is exposed on the screw body 110, and a groove 115 is formed in the longitudinal direction from the upper end to the lower end of the screw body 110 (S100).

Then, the conductor member 130 is formed in the groove 115 formed in step S100 (S200).

It is preferable that the conductor member 130 is formed to extend from the upper end of the screw body 110 to the lower end of the screw body 110 along the longitudinal direction of the screw body 110 when the groove 115 is formed at step S200 .

When the conductor member 130 is formed in the groove 115 in step S200, the conductor member 130 is formed in the groove 115 formed in the screw body 110 so that one side of the conductor member 130 is exposed, Or the conductor member 130 may be fitted in the groove 115 formed in the screw body 110. [

The coating layer 140 is formed on the outer circumferential surface of the screw body 110 so that only both ends of the conductor member 130 formed on the screw body 110 are exposed.

The coating layer 140 is formed on the outer peripheral surface of the screw body 110 so that both ends of the conductor member 130 are exposed only by a predetermined length when the coating layer 140 is formed in the step S300, .

The coating layer 140 may be formed only on a portion where the conductor member 130 is formed along the conductor member 130 so that the conductor layer 130 is exposed only at a predetermined length Or may be formed in a straight shape.

In another embodiment of the present invention, the conductor member 130 may be exposed on the outer circumferential surface of the screw body 110 without forming the groove 115 in the screw body 110, The coating layer 140 may be formed such that both ends of the coating layer 140 are exposed only by a predetermined length.

That is, the conductor member 130 is extended from the upper end of the screw body 110 on the outer peripheral surface of the screw body 110 to the lower end of the screw body 110 along the longitudinal direction of the screw body 110, 130 may be attached to the outer surface of the screw body 110 so as to be exposed to the outer surface of the screw body 110 or may be formed on the outer surface of the screw body 110 by a plating method.

After the conductor member 130 is formed on the screw body 110 as described above, the coating layer 140 is formed on the outer circumferential surface of the screw body 110 so that both ends of the conductor member 130 are exposed only by a predetermined length The coating layer may be formed in a straight line only on the portion where the conductor member 130 is formed along the conductor member 130 so that both ends of the conductor member 130 are exposed only by a predetermined length.

The medical inserting apparatus 100 as described above can be used in connection with the current generator 300 and the current meter 400 as shown in FIG.

The current generator 300 generates a current flowing into the human body through the conductor member 130.

Here, the current generator 300 and the conductor member 130 may be directly connected to each other, and the current generator 300 and the conductor member 130 may be connected to each other via the driver 200.

The current measuring device 400 measures the current generated in the current generator 300 by dividing the resistance of the human body and the current and flowing into the current measuring device 400 (i.e., the amount of current flowing into the human body in the current).

When a current is applied to the human body by the current generator 300, part of the current flows into the human body and the remaining current returns to the current measuring instrument 400. The amount of current flowing into the human body is measured by measuring the amount of current returned to the current measuring instrument 400 So that the resistance value of the tissue in the human body in which the current flows can be calculated. The resistance value thus calculated is compared with the resistivity value according to the known tissue type, so that it is possible to determine whether the current flowing tissue is a neural or a muscle.

Hereinafter, a process of inserting the medical insertion device 100 according to the embodiment of the present invention into the human body to sense the nerve will be described with reference to FIGS. 4A to 8. FIG.

First, the screw groove formed in the groove 125 of the head 120 and the screw thread formed at the end of the driver 200 are screwed together, and the screwdriver 200 is engaged with the screw body 110.

The conductive member 130 exposed on the outer circumferential surface of the screw body 110 may be electrically connected to the driver 200 screwed to the head 120 as shown in FIG.

Thereafter, the screwdriver body 110 is inserted into the body (for example, vertebra bone) by rotating the screwdriver 200.

At this time, when the conductive member 130 exposed on the lower end of the screw body 110 comes into contact with the nerve, the current generated in the current generator 300 leaks through the nerve, and the amount of current sensed by the current meter 400 And it is possible to detect that the screw body 110 is in contact with the nerve.

Thus, when the nerve is in contact with the screw body 110, the screw body 110 can be inserted again so as not to contact the nerve.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

100. Medical insertion device, 110. Screw body,
120. Head, 130. Conductor member,
140. Coating layer, 200. Driver,
300. Current generator, 400. Current meter

Claims (11)

A screw body inserted into the human body;
A conductor member formed to be exposed to the screw body and extending from the upper end of the screw body to the lower end of the screw body along the longitudinal direction of the screw body; And
And a coating layer formed on an outer circumferential surface of the screw body such that both ends of the conductor member exposed on the screw body are exposed only by a predetermined length. The method according to claim 1,
A groove is formed in the longitudinal direction from the upper end to the lower end of the screw body,
The conductive member
Wherein the medical instrument is inserted and installed in the groove such that the one surface is exposed. The method according to claim 1,
Wherein one end of the conductor member
And at the upper end of the screw body, electrically connected to a screw screwed to a head integrally formed with the screw body,
The other end of the conductor member
At the lower end of the screw body,
Wherein the coating layer comprises:
Wherein one end of the conductor member and the other end of the conductor member are formed so as to be exposed only by a predetermined length, respectively. The method of claim 3,
Wherein the coating layer comprises:
And is formed in a straight shape along the conductor member. The method according to claim 1,
The conductive member
Wherein the screw body is plated on the outer circumferential surface of the screw body along the longitudinal direction of the screw body or is formed on the outer circumferential surface of the screw body. The method according to claim 1,
Wherein the coating layer comprises:
A medical insertion device formed from a biocompatible material. A conductor member forming step of forming a conductor member on the screw body so as to expose the conductor member from the upper end of the screw body to the lower end of the screw body along the longitudinal direction of the screw body; And
And forming a coating layer on the outer circumferential surface of the screw body such that both ends of the conductor member exposed on the screw body are exposed only by a predetermined length. 8. The method of claim 7,
The conductive member forming step may include:
Forming a groove in a longitudinal direction from an upper end to a lower end of the screw body; And
And inserting the conductor member into the groove so as to expose one surface of the conductor member. 8. The method of claim 7,
In the coating layer formation step,
And forming a coating layer on an outer circumferential surface of the screw body so that both ends of the conductor member are exposed only by a predetermined length. 10. The method of claim 9,
In the coating layer formation step,
Forming a coating layer on both ends of the conductor member such that only a predetermined length is exposed, and forming the coating layer in a straight shape along the conductor member. 8. The method of claim 7,
The conductive member forming step may include:
Forming a plating on an outer circumferential surface of the screw body along a longitudinal direction of the screw body; and attaching the outer circumferential surface of the screw body to the outer circumferential surface of the screw body.
KR1020170054788A 2017-04-28 2017-04-28 Medical inserting apparatus and manufacturing method thereof KR101958083B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020170054788A KR101958083B1 (en) 2017-04-28 2017-04-28 Medical inserting apparatus and manufacturing method thereof
PCT/KR2018/003073 WO2018199469A1 (en) 2017-04-28 2018-03-16 Medical insertion device and manufacturing method therefor

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US8070785B2 (en) 2003-09-16 2011-12-06 Spineco, Inc. Bone anchor prosthesis and system
FR2874497B1 (en) 2004-08-25 2007-06-01 Spinevision Sa IMPLANT COMPRISING ONE OR MORE ELECTRODES AND ASSOCIATED INSTALLATION INSTRUMENT
KR101056119B1 (en) * 2011-01-14 2011-08-11 (주)비엠코리아 Spinal pedicle screw and apparatus for spinal fixation
CN202288439U (en) 2011-10-21 2012-07-04 中国人民解放军第二军医大学 Plasma spray coated orthopedic screw
KR101599603B1 (en) * 2013-08-26 2016-03-03 경북대학교 산학협력단 Medical inserting apparatus
US9883898B2 (en) * 2014-08-07 2018-02-06 Jeffrey Scott Smith Pedicle screw with electro-conductive coating or portion

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