TWM474526U - Magnetic guiding device of percutaneous tube electrode - Google Patents

Description

Magnetic guiding device for percutaneous line electrodes

[0001] The present invention relates to a percutaneous line electrode device, particularly a magnetic guiding device for accurately guiding an electrode to a tissue organ position in the body.

[0002] It has been found that medical devices have developed neurostimulators to alleviate human tissue pain, whereas conventional implantable neurostimulation systems typically have an implantable pulse generator and one or more electrodes for transmitting electrical pulse waves. To nerve tissue, there is a nerve stimulation system for spinal cord stimulation (SCS) having a plurality of cylindrical electrode delivery sheaths each comprising an electrode delivery sheath body having a circular cross section and a plurality of spaced conductive a ring (ie, an electrode) located at the distal end of the electrode delivery sheath body, and the spinal cord stimulating electrode delivery sheath is inserted into the spinal cord chamber through the subcutaneous tissue by a puncture needle, whereas conventional electrode delivery sheaths are The problem is that it cannot be accurately implanted in the desired position in the human body, and even the electrode stimulation does not produce the desired therapeutic effect.
[0003] U.S. Patent No. 7,472,222 discloses that the electrode delivery sheath can be reduced by strengthening at least a portion of the structure, but this method is only suitable for brain implantation, has no effect on spinal insertion, and it does not have a precise guide. The role of the electrode to the desired tissue location in the body.
[0004] U.S. Patent No. 8,108,052 discloses an electrode transfer sheath comprising first, second and third portions, a first portion having an electrical contact end, a second portion being spaced apart from the first portion, and a third portion extending An axis is placed between the first portion and the second portion, and the electrode delivery sheath includes at least one electrode or electrical contact end that directs electrical signals into the tissue of the patient to alleviate the patient's pain, yet it is not accurate The role of the guide electrode to the desired tissue location in the body.
[0005] US Patent Publication No. 20110071604 discloses an implantable human body stimulating electrode delivery sheath comprising at least one distal stimulation electrode and at least one electrically conductive element electrically coupled to the distal stimulation electrode, using a sleeve Arranging the conductive element and extending at least a portion of the electrode delivery sheath to direct the induced RF energy from the conductive element to the human body, but when the electrode delivery sheath is implanted subcutaneously into the human body, it is difficult to adjust the electrode The direction of movement of the delivery sheath, i.e., it does not have the effect of accurately guiding the electrode to the desired tissue position in the body, thus does not produce the desired therapeutic effect and is difficult to alleviate the pain of the patient.
In view of this, the creators of this case have been engaged in the manufacturing development and design experience of related medical products for many years, and have carefully evaluated and carefully designed the above-mentioned problems to be solved. .

The main object of the present invention is to provide a percutaneous line electrode device having a magnetic guiding device for guiding a percutaneous line electrode to a precise human target tissue.
In order to achieve the above object, the percutaneous line electrode system of the present invention is generally in the form of a plastic hollow elongated tube, comprising: a first portion having at least one signal transmission electrode; and a second portion having At least one corresponding connecting terminal, wherein the connecting terminal is electrically connected to the at least one signal transmitting electrode; a third portion is respectively connected to the first portion and the second portion; and a seeker is Connected to the front end position of the first portion, and a ferromagnetic element is embedded in the seeker of the percutaneous line electrode; as shown, the transcutaneous line electrode is internally provided with a flexible metal support wire as For the purpose of supporting strength; the present invention uses a magnet to move on the back of the human body to magnetically guide the ferromagnetic element that is placed at the front end of the percutaneous line electrode inside the human body, and can accurately guide the signal transmission electrode to the inside of the human body. The location of the organ to be treated.

[0015]
10‧‧‧Transdermal line electrodes
11‧‧‧ seeker
12‧‧‧Part 1
121‧‧‧Signal transmission electrode
13‧‧‧Part II
131‧‧‧Connecting terminal
132‧‧‧Open end
14‧‧‧Part III
15‧‧‧ Ferromagnetic components
16‧‧‧Flexible metal support wire
30‧‧‧ magnet
41‧‧‧ spines
42‧‧‧Yellow Ligament
43‧‧‧ Epidural space
44‧‧‧ spinal cord
441‧‧‧Dust film
442‧‧‧ spinal nerve
45‧‧‧Spine
451‧‧‧Pedicle
452‧‧ ‧ intervertebral disc
453‧‧‧ vertebral body
47‧‧‧ Back
48‧‧‧Abdomen
50‧‧‧dural needle

【0009】
Figure 1: Side view of the percutaneous line electrode of the present creation;
Figure 2: is a cross-sectional view of Figure 1;
Figure 3: is a schematic cross-sectional view of the state of use of the present invention, showing a dural puncture needle inserted into the epidural space of the back of the human body, and a percutaneous line electrode inserted through the dural puncture needle into the epidural space tissue , which also shows the magnetic guiding of the magnet to the percutaneous line electrode;
Figure 4: is a cross-sectional view of Figure 3, showing the insertion of the percutaneous tubing electrode into the epidural space and the magnetic guidance of a magnet over the patient's back;
Figure 5: A cross-sectional view of Figure 3, showing the medical staff using an X-ray instrument to observe the movement of the percutaneous line electrode in the epidural space of the spinal cord, and the medical staff using a magnet to magnetically guide the percutaneous line electrode to the target Position; and Figure 6: Similar to Figure 5, which shows that the percutaneous line electrode has been displaced to the body tissue position of the body to be treated.

[0010] In order to enable the reviewing committee to have a better understanding of the technical features and functions of the present invention, a detailed description will be given below with reference to a specific embodiment.
[0011] Referring to Figures 1 to 6, the present invention is a magnetic guiding device for a percutaneous line electrode, comprising: a percutaneous lead 10, which is in the form of a plastic hollow elongated tube, and The utility model has a guiding head 11 , a first portion 12 , a second portion 13 and a third portion 14 , wherein the third portion 14 is an intermediate portion and the two ends thereof are respectively connected to the first portion 12 and the second portion A portion 13 is provided with a flexible metal support wire (such as a stylet) 16 for supporting strength in the percutaneous lead 10, the flexible metal support wire 16 being The open end 132 of the second portion 13 passes through the interior of the third portion 14 and the first portion 12 in sequence, so that the percutaneous line electrode 10 has a flexible support strength to facilitate pushing displacement in the body tissue chamber. A ferromagnetism member 15 is embedded in the seeker 11 covering the front end of the first portion 12, and the ferromagnetic element 15 is an alloy of iron-nickel-cobalt to facilitate the guiding of the percutaneous line electrode 10. The head 11 can be subjected to a magnetic guiding displacement; wherein the first portion 12 includes a plurality of equally spaced ring signal delivery electrodes 121; and the second portion 13 corresponds to a plurality of equally spaced intervals The connection terminals 131 are respectively electrically connected to the signal transmission electrode 121, and a plurality of wires (not shown) are embedded in the body wall of the percutaneous line electrode 10, and The corresponding wire is such that the signal transmission electrode 121 is electrically connected to the connection terminal 131. Then, the connection terminal 131 of the second portion 13 is assembled to a connection port (not shown) of a pulse generator, and the electron can be used. The pulse signal is transmitted to the electrode of the signal transmission electrode 121 of the first portion 12. In particular, the flexible metal support wire 16 may also be of ferromagnetism, that is, an alloy of iron-nickel-cobalt, such that the first portion 12 and the third portion 14 of the percutaneous line electrode 10 are The paragraphs are all subject to the magnetic guiding displacement.
[0012] During operation (as shown in Figures 3 to 6), the medical staff inserts a epidural needle 50 into the gap between the adjacent spines of the human body 47, needles, needles Puncture into the epidural space 43 position, wherein the epidural space 43 is between the ligamentum flavum 42 and the dura mater 441 on the surface of the spinal cord 44. And the human spinal cord 44 has a plurality of spinal nerves 442; then, the medical staff then penetrates the percutaneous line electrode 10 into the epidural needle 50, thereby making the percutaneous line electrode 10 The front end is introduced into the epidural space 43 at which time the seeker 11 of the first portion 12 of the transcutaneous line electrode 10 and the signal transmitting electrode 121 are moved into the epidural space 43 while The second portion 13 of the percutaneous line electrode 10 extends outside the human body to facilitate the hand-held operation of the medical staff; thus, the medical staff uses the magnet 30 placed on the back 47 of the human body to magnetically guide the percutaneous line. Guide to the front end of the electrode 10 11, in conjunction with percutaneous manual manipulation pulls the line 1310 of the second electrode portion, thereby making the percutaneous electrode line guide 10 and the head 11 is slidably guided to the exact location of the target tissue. The advantage of this creation is that the X-ray instrument screen design can be used synchronously to assist in accurately guiding the percutaneous line electrode 10, that is, the medical staff can instantly observe through the X-ray instrument and magnetically attract the percutaneous line electrode by the magnet 30. a ferromagnetic element 15 for guiding the signal transmission electrode 121 to a precise target tissue position for facilitating subsequent electrotherapy of the body tissue, and after completing the body positioning of the electrode, the flexible metal support wire 16 is removed from the second portion The open end 132 of the 13 is removed and removed; since the signal transmission electrode 121 of the percutaneous line electrode 10 has been placed at the precise target position, the connection terminal 131 of the third portion 13 is electrically connected to the connection port of the pulse generator. The pulse electric signal generated by the pulse generator is transmitted to the signal transmission electrode 121 through the connection terminal 131, so that the pulse current is accurately transmitted to the nerve tissue to be treated of the human body, so as to reduce the pain of the patient and achieve medical effects. .
[0013] Preferably, the angle of the puncture needle 50 piercing the back 47 of the human body is not more than 45 degrees, and FIG. 3 to FIG. 6 are partial cross-sectional views showing the spinal cord 44 between the back 47 and the abdomen 48. And a vertebra 45, wherein the spine 45 includes pedicles 451, an inervertebral disc 452, and a vertebral body 453.
The above-described embodiments are merely illustrative of the principles of the present invention and its effects, and are not intended to limit the present invention; therefore, modifications and variations of the embodiments described above will be apparent to those skilled in the art. This creation has the industrial applicability, novelty and progress, and meets the requirements of new patents.

10‧‧‧Transdermal line electrodes

11‧‧‧ seeker

12‧‧‧Part 1

121‧‧‧Signal transmission electrode

13‧‧‧Part II

131‧‧‧Connecting terminal

132‧‧‧Open end

14‧‧‧Part III

15‧‧‧ Ferromagnetic components

16‧‧‧Flexible metal support wire

Claims (8)

A magnetic guiding device for a percutaneous line electrode, comprising:
a percutaneous line electrode comprising: a first portion comprising at least one signal transmission electrode; a second portion comprising at least one connection terminal and an open end, the connection terminal electrically connecting the at least one signal transmission electrode; The three portions are intermediate segments and the two ends thereof are respectively connected to the first portion and the second portion; and a seeker is disposed at the front end of the first portion; wherein the percutaneous line electrode is a plastic hollow elongated shape a hose; and a ferromagnetic element embedded in the seeker of the percutaneous line electrode. The magnetic guiding device for the percutaneous line electrode according to claim 1, further comprising a magnet, wherein the magnet is arranged on the back of the human body and magnetically guides the ferromagnetic element of the transcutaneous line electrode. The percutaneous line electrode is moved to the target tissue location. The magnetic guiding device for a percutaneous line electrode according to claim 1, wherein the ferromagnetic element is an alloy of iron nickel cobalt. The magnetic guiding device for a percutaneous line electrode according to claim 1, further comprising a flexible metal supporting wire, which is sequentially disposed on the second, third and first portions of the percutaneous line electrode Used as a support strength and can be removed at the open end of the second portion. The magnetic guiding device for a percutaneous line electrode according to claim 4, wherein the flexible metal supporting wire is an alloy of iron nickel cobalt. The magnetic guiding device for a percutaneous line electrode according to claim 1, wherein a plurality of wires are embedded in a body wall of the percutaneous line electrode, and the signal transmitting electrode is electrically transmitted through each of the wires. Connected to the connection terminal. The magnetic guiding device for a percutaneous line electrode according to claim 1, wherein the connection terminal of the second portion is disposed in a connection port of a pulse generator, and the electronic pulse signal can be transmitted to the first Part of the signal transmission electrode. The magnetic guiding device for the percutaneous line electrode according to claim 1, further comprising a dural puncture needle, wherein the dura puncture needle is inserted into the back of the human body, and the percutaneous line electrode penetrates In the dura puncture needle, the first part of the front end of the percutaneous line electrode and the signal transmission electrode are moved into the human body tissue, and the second part of the percutaneous line electrode extends outside the human body. To facilitate the handheld operation of medical staff.