TWI672118B - Probe for nerve detection system - Google Patents

Abstract

An electrode probe of a nerve detecting system comprises a hook body and a fixing component, the hook body comprises a base arm, and a free arm, the base arm comprises a first connecting end, a fixed end, and a protruding portion, the free arm comprises a second connecting end, an open end, and an elastic portion, the first connecting end of the base arm is connected with the second connecting end of the free arm, the base arm is parallel with the free arm and defines an open receiving space, and the open end is The base arm forms an opening that communicates with the accommodating space. The elastic portion can be adjusted to be adjacent to the base arm or away from the base arm when the force is applied to adjust the size of the opening, and the elastic portion returns to the open end when the force is not applied. Maintaining a fixed distance from the base arm, the fixing member movably connects the protrusion and the elastic portion such that the open end is adjacent to the base arm and the opening is constricted.

Description

Electrode probe for nerve detection system

The invention relates to an electrode probe of a nerve detecting system, in particular to an electrode probe of a nerve detecting system which uses a fixing member to make the hooked nerve difficult to loosen.

The thyroid gland of the human body is located in the anterior neck and is an important endocrine organ of the human body. When the thyroid gland is found to require abnormal surgery, recurrent laryngeal nerve palsy is often the most common complication of this operation. The human body has two recurrent laryngeal nerves. The recurrent laryngeal nerve is the tenth branch of the human cranial nerve-vagus nerve. The left recurrent laryngeal nerve is folded from the vagus nerve branch to the thoracic cavity, and the right recurrent laryngeal nerve is folded back from the lower neck to the trachea. Finally, Entering the throat, the main function of the recurrent laryngeal nerve is to control the activity of the vocal cords of the human throat. The thyroid gland envelops the trachea and esophagus, and also encases the recurrent laryngeal nerve. When the recurrent laryngeal nerve is returned to the trachea, it is closer to the thyroid gland. When it enters the larynx, it almost sticks to the thyroid gland. This is the recurrent laryngeal nerve in the thyroid surgery. The most vulnerable place to be injured. Recurrent laryngeal nerve paralysis can cause problems such as hoarseness or fluid inflow into the trachea, which seriously affects the life or work of the individual. In more serious cases, breathing difficulties may occur.

With advances in medicine, a neurological detection system has been invented to assist a physician in locating the position of the recurrent laryngeal nerve. The neurological detection system includes an endotracheal tube, an electrode probe, and a display instrument. The tracheal cannula includes a sensing electrode set placed in the patient's throat and contacting the sensing electrode set with the vocal cords.

Referring to the first figure, the electrode probe 10 includes a hook body 101 and a discharge electrode group 102. The hook body 101 includes a fixing piece 103, and an elastic piece 104. The hook body 101 is hooked to the easily recognizable vagus nerve 20. And the discharge electrode group 102 is brought into contact with the hooked vagus nerve 20, and then the discharge electrode group 102 releases current, and when the current stimulates the vocal cord via the vagus nerve 20 to the recurrent laryngeal nerve, the vocal cord will Vibrating and stimulating the sensing electrode group, and the display instrument displays an electromyogram and gives an audible reminder in an abnormal state, so when the doctor performs thyroid surgery, the recurrent laryngeal nerve can be grasped via the electromyogram The state and positioning, which can reduce the chance of recurrent laryngeal nerve injury.

However, in the case where the current electrode probe 10 is considered to avoid clipping the nerve, the opening formed by the elastic piece 104 and the fixing piece 103 is very loose, and the body 101 is slightly pulled and touched during the operation. The hook body 101 is easily loosened, causing the discharge electrode group 102 to be in poor contact with the hooked vagus nerve 20. The display meter will display the abnormal electromyogram and give an audible reminder. At this time, the physician must Suspension of the operation to see whether the body 101 is loose or abnormal caused by surgery, so that the doctor can not concentrate on completing the operation in one go, causing troubles in use.

Accordingly, it is an object of the present invention to provide an electrode probe for a neurological detection system that prevents the vagus nerve from being loosened and is not pinched.

Therefore, the electrode probe of the nerve detecting system of the present invention comprises a hook body and a fixing member.

The hook body includes a base arm and a free arm, the base arm and the free arm define an accommodating space, and form an opening that communicates with the accommodating space, and the free arm can be adjusted adjacent to the force when the force is applied The base arm is spaced away from the base arm to adjust the size of the opening, and the free arm returns to a fixed distance from the base arm when unstressed. The fixing member movably connects the base arm and the free arm such that the free arm is adjacent to the base arm and the opening is constricted. The fixing member has an annular shape and is sleeved on the free arm. The peripheral edge of the base arm forms a positioning groove. When the fixing member joins the base arm and the free arm, the positioning portion is sleeved into the positioning groove. The positioning groove is formed by the base. The periphery of the side of the arm is formed into a concave and tapered shape, and the fixing member is extended, so that the fixing member is positioned along the side of the base arm around a fixed end of the base arm to the positioning groove, and the fixing is fixed. When the piece is coupled to the base arm and the free arm, it is guided by the wider top of the positioning groove and fits into the positioning groove, and is embedded in the narrow bottom of the positioning groove.

Further, the fixing member includes a fixing portion and a clamping portion, and the fixing portion is connected to the clamping portion, and the clamping portion is clamped to drive the fixing portion to connect the base arm and the free arm.

Further, the electrode probe of the nerve detecting system further includes an electrode piece disposed in the accommodating space.

Further, the shape of the fixing member is an elastic material.

Further, when the fixing member connects the base arm and the free arm, the fixing member is in a deformed state.

Further, when the fixing member is connected to the base arm and the free arm, the fixing member is limited in size of the opening. The larger the opening is, the larger the receiving space is, and the smaller the opening is, the smaller the receiving space is.

Further, when the fixing member connects the base arm and the free arm, the fixing member is limited in size according to a size of the fixing member, and the larger the size of the fixing member, the larger the opening after the limiting The smaller the size of the fixing member, the smaller the opening after the restriction.

According to the above technical features, the following effects can be achieved:

1. The opening is restrained by the fixing member, and when the hook body hooks the vagus nerve, the vagus nerve is not easily released from the hook body.

2. By limiting the size of the opening by the size of the fixing member, the size of the opening can be adjusted according to the thickness of the vagus nerve, so that the hook body does not pinch the vagus nerve.

3. The electrode sheet has a large size and is in good contact with the vagus nerve.

(1)‧‧‧‧

(11) ‧‧‧ base arm

(111)‧‧‧ first connection

(112)‧‧‧ Fixed end

(113) ‧‧‧Protruding

(114)‧‧‧ Angle

(115)‧‧‧ positioning slots

(12)‧‧‧Free arm

(121)‧‧‧second connection

(122) ‧ ‧ open end

(123)‧‧‧Flexible Department

(124) ‧‧‧ accommodating space

(125) ‧ ‧ openings

(2) ‧‧‧electrode sheets

(3) ‧ ‧ protective tubes

(4) ‧ ‧ electrodes

(5)‧‧‧Wires

(6) ‧‧‧Fixed parts

(61) ‧‧‧Fixed Department

(62) ‧‧‧ gripping department

(20) ‧ ‧ vagus nerve

[Picture 1] is a perspective view showing that an electrode probe of a conventional neurological detection system hooks a vagus nerve.

[Fig. 2] is a perspective view showing a first embodiment of the electrode probe of the neurological detecting system of the present invention hooking the vagus nerve.

[Third view] is a side view showing that a fixing member of the first embodiment is disposed on an elastic portion.

[Fourth figure] is a side view showing that one end of the fixing member of the first embodiment encloses a projection from a fixed end.

[Fifth Figure] is a side view showing that the fixing member portion of the first embodiment is fitted with an included angle.

[Sixth Diagram] is a side view showing a second embodiment of the electrode probe of the neurological detection system of the present invention hooking the vagus nerve.

In summary of the above technical features, the main effects of the electrode probe of the neurological detection system of the present invention will be clearly shown in the following embodiments.

Referring to the second and third figures, a first embodiment of the electrode probe of the neurological detection system of the present invention is adapted to hook a vagus nerve 20 and release an electric current to the vagus nerve 20 when the current passes through the vagus nerve 20 to A laryngeal nerve stimulates a vocal cord that vibrates to stimulate a sensing electrode set in contact with the vocal cord, and a display meter displays an EMG and an audible alert in an abnormal state. The electrode probe comprises a hook body 1, an electrode sheet 2, a protection tube 3, an electrode 4, a wire 5, and a fixing member 6.

The hook body 1 includes a base arm 11 and a free arm 12. In this example, the base arm 11 and the free arm 12 are in the form of a sheet. The base arm 11 includes a first connecting end 111, a fixed end 112, and a protruding portion 113 adjacent to the fixed end 112. The peripheral edge of the base arm 11 defines a positioning slot 115, wherein the protruding portion 113 faces away from the The direction of the free arm 12 extends and is substantially arcuate, and the positioning groove 115 is located on the circumference of the protrusion 113. The free arm 12 includes a second connecting end 121, an open end 122, and an elastic portion 123 adjacent to the open end 122. The elastic portion 123 extends away from the base arm 11 and has an arc shape. . The first connecting end 111 of the base arm 11 is connected to the second connecting end 121 of the free arm 12 . The base arm 11 is parallel to the free arm 12 and defines an open receiving space 124 . The open end 122 and the base The arm 11 forms an opening 125 that communicates with the accommodating space 124. The elastic portion 123 can be adjusted when subjected to force. The open end 122 is adjacent to or away from the base arm 11 to adjust the opening 125 to be enlarged or reduced. The elastic portion 123 returns to the fixed end 122 and the base arm 11 when the force is not applied. distance.

The electrode sheet 2 is disposed in the accommodating space 124. The protection tube 3 is hollow and connected to the base arm 11 , and the protection tube 3 forms an angle 114 with the protrusion 113 . The electrode 4 is inserted into the base arm 11 and is in contact with the electrode sheet 2. The electric wire 5 is housed inside the protective tube 3 and the base arm 11 and is in contact with the electrode 4.

Referring to the fourth to fifth figures, the fixing member 6 includes a fixing portion 61 and a clamping portion 62. The fixing portion 61 has an annular shape and is elastically connected to the elastic portion 123. The fixing portion 61 can be coupled to the protruding portion 113 and the elastic portion 123 by the clamping portion 62 such that the open end 122 is adjacent to the base arm 11 and the opening 125 is constricted. In this example, one end of the fixing portion 61 is connected to the elastic portion 123, and the fixing portion 61 is extended, so that the other end of the fixing portion 61 encloses the protruding portion 113 from the fixing end 112 and partially fits the positioning portion. The slot 115 is disposed such that the open end 122 is adjacent to the base arm 11 and the opening 125 is constricted. At this time, the fixing portion 61 is in a deformed state. It is to be noted that the fixing portion 61 limits the opening. The size of the fixing portion 61 is larger than the size of the fixing portion 61. The larger the size of the fixing portion 61 is, the larger the opening 125 is, and the smaller the size of the fixing portion 61 is, the smaller the opening 125 is. Therefore, when the electrode probe is manufactured, the size of the fixing portion 61 provided on the elastic portion 123 can be selected according to the size of the opening 125, and the thickness of the vagus nerve 20 can be adjusted to adjust the opening 125. The larger the opening 125 is, the larger the accommodating space 124 is. The smaller the opening 125 is, the smaller the accommodating space 124 is. Therefore, the size of the fixing portion 61 can match the size of the fixing body 61. Injury the vagus nerve 20.

When the user wants to hook the body 1 to the vagus nerve 20, the vagus nerve 20 is introduced into the accommodating space 124 along the arc of the elastic portion 123 via the opening 125, so that the vagus nerve 20 and the electrode piece are 2 contact, the electrode sheet 2 is large in size, and is in good contact with the vagus nerve 20, and then the user does not apply force to the free arm 12, the elastic portion 123 returns to hold the open end 122 and the base arm 11 The fixing portion is further clamped to the clamping portion 62, so that the clamping portion 62 drives the fixing portion 61 to extend from the opening end 122 along one side of the base arm 11 to the fixed end 112, and the fixing portion is extended. One end of the ring 61 is looped from the fixed end 112 and partially bypasses the fixed end 112 and nested along the other side of the base arm 11 into the positioning slot 115. The positioning slot 115 is bounded by the base arm 11 The peripheral edge of the side surface is formed in a concave shape and is tapered. When the fixing portion 61 is coupled to the base arm 11 and the free arm 12, the positioning groove 115 is guided by the wide top of the positioning groove 115 and fits into the positioning groove 115, and is embedded. The card is stuck at the bottom of the positioning slot 115. In this example, the direction in which the fixing portion 61 extends around the base arm 11 is a counterclockwise direction. At this time, the fixing portion 61 bundles the opening end 122 and reduces the opening 125. The base arm 11 and the The free arm 12 partially touches and is in close contact, and the vagus nerve 20 is not easily released from the hook body 1.

It should be noted that the fixing portion 61 is fixed in a direction of being disposed along the circumference of the base arm 11 around the fixed end 112 to the positioning slot 115. Therefore, the fixing portion 61 extends around the base arm 11 . The direction of the positioning slot 115 is opposite to that of the positioning slot 115. If the positioning edge 115 is formed on the opposite sides of the base arm 11, the direction in which the fixing portion 61 extends around the base arm 11 is not limited. Both the clockwise direction and the counterclockwise direction can be implemented.

In addition, if the positioning groove 115 is not formed on the periphery of the base arm 11, when the fixing portion 61 is fixed to the base arm 11, the fixing portion 61 can be partially fitted into the angle 114, and the fixing portion is also achieved. 61 is fixed to the base arm 11.

Referring to FIG. 6 , a second embodiment of the electrode probe of the neuro-detection system of the present invention is similar to the first embodiment, except that the fixing portion 61 is partially coupled to the protruding portion 113 , and the base arm 11 is The positioning groove 115 is not formed on the periphery. When the user uses the fixing member 6 to bundle the opening 125, the clamping portion 62 is clamped, so that the clamping portion 62 drives the fixing portion 61 from the protruding portion 113 to the The fixed end 112 extends, and one end of the fixing portion 61 encloses the elastic portion 123 from the open end 122, and the effect that the vagus nerve 20 is not easily released from the hook body 1 is achieved.

It should be further noted that the fixing member 6 may be connected to the elastic portion 123 or the protruding portion 113 in addition to the portion as described in the first embodiment and the second embodiment, or may not be coupled to the elastic portion 123 or the portion. The protrusions 113 are connected, and the fixing member 6 is directly sleeved from the open end 122 and the fixed end 112 to the elastic portion 123 and the protruding portion 113, and a part of the fixing member 6 is nested in the angle 114 or the positioning. The groove 115 has the same effect of making the vagus nerve 20 difficult to loosen from the hook body 1.

In summary, when the fixing member 6 is bundled with the opening 125 to restrict the opening 125, when the hook body 1 hooks the vagus nerve 20, the vagus nerve 20 is not easily loosened from the hook body 1, and The size of the opening 125 can be limited by the size of the fixing member 6 provided, and the size of the opening 125 can be adjusted according to the thickness of the vagus nerve 20, so that the hook body 1 does not pinch the vagus nerve 20, The electrode sheet 2 has a large size and is in good contact with the vagus nerve 20. Therefore, the electrode probe of the neurological detection system of the present invention has good contact with the vagus nerve 20 that is hooked, and is not easy to loosen and pinch the vagus nerve 20, and the solution Knowing the troubles in use, it is indeed possible to achieve the object of the present invention.

In view of the foregoing description of the embodiments, the operation and the use of the present invention and the effects of the present invention are fully understood, but the above described embodiments are merely preferred embodiments of the present invention, and the invention may not be limited thereto. Included within the scope of the present invention are the scope of the present invention.

Claims (7)

An electrode probe of a nerve detecting system, comprising: a hook body, comprising a base arm, and a free arm, the base arm and the free arm defining an accommodating space, and forming an opening connecting the accommodating space, The free arm can be adjusted to be adjacent to or away from the base arm to adjust the size of the opening, and the free arm returns to a fixed distance from the base arm when unstressed, the base arm Forming a concave groove in a tapered shape from a peripheral edge of the side surface; and a fixing member having a ring shape and pre-attached to the free arm for movably connecting the base arm and the free arm to Adjacent the base arm and confining the opening, the fixing member is extended, so that the fixing member is positioned around the fixed end of the base arm along the side of the base arm to the positioning slot. When the fixing member is coupled to the base arm and the free arm, the positioning groove is guided by the wider top of the positioning groove and fits into the positioning groove, and is embedded in the narrow bottom of the positioning groove. The electrode probe of the nerve detecting system of claim 1, wherein the fixing member comprises a fixing portion and a clamping portion, the fixing portion is connected to the clamping portion, and the clamping portion is clamped to drive the A fixing portion connects the base arm and the free arm. The electrode probe of the nerve detecting system of claim 1, further comprising an electrode sheet disposed in the accommodating space. The electrode probe of the nerve detecting system of claim 1, wherein the fixing member is an elastic material. The electrode probe of the nerve detecting system of claim 4, wherein the fixing member is in a deformed state when the base arm and the free arm are connected. The electrode probe of the nerve detecting system of claim 4, wherein the fixing member limits the size of the opening when connecting the base arm and the free arm, and the larger the opening, the receiving space The larger the opening, the smaller the accommodation space. The electrode probe of the nerve detecting system of claim 4, wherein when the fixing member connects the base arm and the free arm, the fixing member is limited to a size of the opening according to a size of the fixing member, and the fixing The larger the size of the piece, the larger the opening after the restriction, the smaller the size of the fixing member, and the smaller the opening after the restriction.