WO2017142236A1 - Système de placement de stent comprenant une pointe de cautérisation électrique de type anode - Google Patents

Système de placement de stent comprenant une pointe de cautérisation électrique de type anode Download PDF

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Publication number
WO2017142236A1
WO2017142236A1 PCT/KR2017/001172 KR2017001172W WO2017142236A1 WO 2017142236 A1 WO2017142236 A1 WO 2017142236A1 KR 2017001172 W KR2017001172 W KR 2017001172W WO 2017142236 A1 WO2017142236 A1 WO 2017142236A1
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WO
WIPO (PCT)
Prior art keywords
tip
electrode
disposed
delivery system
inner tube
Prior art date
Application number
PCT/KR2017/001172
Other languages
English (en)
Korean (ko)
Inventor
신경민
박세익
김광석
Original Assignee
(주) 태웅메디칼
신경민
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020170013801A external-priority patent/KR101781052B1/ko
Application filed by (주) 태웅메디칼, 신경민 filed Critical (주) 태웅메디칼
Priority to JP2018538692A priority Critical patent/JP6793736B2/ja
Priority to US16/072,520 priority patent/US11045252B2/en
Priority to EP17753397.3A priority patent/EP3417836A4/fr
Priority to CN201780008243.1A priority patent/CN108601665A/zh
Publication of WO2017142236A1 publication Critical patent/WO2017142236A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod

Definitions

  • the present invention relates to a stent delivery system.
  • a stent is an endoprostheses device that is inserted into a blockage in the human body and used to secure a circulation path of blood, body fluids, food, and body wastes.
  • the stent is mainly used plastic or metal material.
  • the diameter is thin, so that it can be easily inserted.
  • the self-expansion is collapsed and the stent site is blocked.
  • the medical field is using a lot of metal stents.
  • the price is expensive, but the inherent rigidity is basically so that even if intermittent muscle contraction or applied external shock occurs in the body tissue of the stent, it contracts temporarily, but expands itself again. There is a side.
  • a stent delivery system such as a catheter is used to insert the stent into the body tissue to be treated.
  • stent delivery system which basically includes an electrical cauterization tip, insertion tube, stent, handle, current connector, and the like.
  • the current connector is a part that is connected to an external current source such as an electric surgery machine to receive a heating current, and the electrical cauterization tip is connected to the current connector and a conductor to receive current to cauterize body tissue to form a hole. It is a part.
  • the insertion tube is made of an insulating material
  • the stent is built in the insertion tube inside, the operator inserts the insertion tube into the body tissue through the cautery hole through the operation of the handle and the stent is placed on the site to be treated It is located.
  • the stent After the handle operation to expose the stent in the insertion tube, the stent is self-expanded, and to solve the blockage, damage, etc. of the treatment site.
  • the electrocauterization tip 13 used in a number of conventional stent delivery systems 10 is often arranged with only a single pole.
  • 1 shows a circuit system with a monopolar electrocauterization tip 13, which is cited for explanation of the principle of operation of the monopolar electrocauterization tip 13.
  • the procedure is performed by the operator using an electric wire 12 to one pole of the external current source 11 and the electrical cauterization tip 13, and the electrode patch (so that the other pole can be conducted to a part of the body of the patient H). 14).
  • the electrode patch 14 is connected to the other pole of the external current source 11 using the wire 15.
  • the operator turns on the external current source 11, adjusts the current magnitude, and cauterizes the body tissue.
  • the current flows in the direction of the arrow shown in FIG. 1 (or in the opposite direction) and flows in the body toward the electrode patch 14 at the end of the electrocauterization tip 13.
  • the distance between the electrocauterization tip 13 and the electrode patch 14 is preferable to keep the distance between the electrocauterization tip 13 and the electrode patch 14 as close as possible, but there are physical limitations depending on the position of the body part to be treated with the stent.
  • the insertion tube is made of an insulating material, such that a surgeon easily bends or bends when a surgeon, such as a doctor or a nurse, incorrectly applies an impact. In severe cases, external damage may cause the problem.
  • the insertion tube Since the insertion tube is inserted into the human body, a certain degree of flexibility should be ensured, and since it is an accessory touching the human body, it must be electrically insulated. Therefore, in the technical field of the stent treatment, while maintaining the basic characteristics of the insertion tube as described above, there is a demand for improved tube durability so as not to be easily damaged by the sub-circumference of the operator, such as doctors, nurses. Of course, the arrangement of the leads leading to the electrocauterization tip also needs to be considered properly.
  • an object of the present invention is to conduct the anode integrally to the electrical cauterization tip, thereby minimizing the current flow distance in the body, thereby improving the stability of the procedure It is to provide a stent delivery system that can be.
  • the present invention for achieving the above object relates to a stent delivery system, a connector including a plurality of connecting connectors at least one of which is connected to an external current source and the other pole and a plurality of electrode wires corresponding to the plurality of connecting connectors Is connected to, at least one of the electrocauterization tip and the one side is integrally associated with the electrical cauterization tip, the other side is associated with the connector portion, the inside of the electrical cauterization And a stent space part disposed adjacent to the electrocauterization tip in the delivery part in which the electrode line connecting the tip and the connector part is disposed.
  • the electrocauterization tip may include a tip insulating member having a tip guide hole therein and a first electrode body and one tip insulating member disposed on one side of the tip insulating member to form one pole. It may include a second electrode body disposed on the other side of the forming the other pole.
  • the plurality of connection connectors may be divided into a first connection connector and a second connection connector
  • the plurality of electrode lines may include a first electrode line connecting the first connection connector and the first electrode body. It may be divided into a second electrode line connecting the second connection connector and the second electrode body.
  • one side of the first electrode body and the second electrode body may be tapered in a direction facing each other.
  • the transfer unit, the electrode wire is connected to the electrocauterization tip is disposed, the inner center side is disposed surrounding the first inner tube and the inner peripheral portion of the first inner tube formed with an inner hole is formed
  • the first inner tube may include a second inner tube provided to move integrally with the first inner tube and an outer tube disposed to surround the second inner tube.
  • the first inner tube is an insulating coating agent
  • the first electrode line and the second electrode line are individually insulating coated, and may be disposed in a straight line along the longitudinal direction of the first inner tube.
  • the first inner tube is an insulating coating agent
  • the first electrode line and the second electrode line are individually insulating coated, and may be disposed while spirally winding along the circumference of the first inner tube.
  • the first inner tube is an insulating coating agent
  • the first electrode line and the second electrode line are individually insulating coated, and may be disposed in a woven form along the circumference of the first inner tube.
  • the transfer unit, the first handle portion connected to the outer tube and the second handle portion connected to the second inner tube and the moving bar further, the connector portion on the second handle portion
  • the first inner tube may be disposed through the moving bar and the second handle part.
  • the electrocauterization tip may further include a coupling part formed at a portion of the outer circumference of the electrode body and a variable ring connected to the coupling part to vary the size of the electrode body.
  • the outer portion of the variable ring may be tapered in the same direction as the first electrode body and the second electrode body.
  • the outer portion of the variable ring may be tapered at an angle smaller than that of the first electrode body and the second electrode body.
  • the outer circumference of the variable ring may be rounded.
  • variable ring may have a different thickness.
  • the electrocauterization tip is an adhesive pad disposed on at least one side of the coupling part to prevent a space between the inner circumference of the variable ring and the outer circumference of the electrode body and the tip insulating member. It may further include.
  • the electrical cauterization tip may further include a cautery protrusion formed on the outer surface of the electrode body.
  • the plurality of cautery protrusions may be disposed at predetermined intervals on the outer circumference of the electrode body.
  • the cautery protrusion may be straight.
  • the cautery protrusion may be curved.
  • the embodiment of the present invention may further include a guide wire disposed in the inner hole of the first inner tube and the tip guide hole of the tip insulating member, and guides the movement direction of the electrocauterization tip.
  • the transmission unit further includes a movement adjusting unit for stepwise adjusting the movement of the movement bar, coupled to the uneven portion and the uneven portion formed along the longitudinal direction of the moving bar and the moving bar
  • a movement adjusting unit for stepwise adjusting the movement of the movement bar, coupled to the uneven portion and the uneven portion formed along the longitudinal direction of the moving bar and the moving bar
  • the movement of the step may include a fixing portion disposed inside the first handle portion.
  • the fixing part may include an elastic body disposed inside the first handle part and one side close to the elastic body, and the other side may include a fixing block protruding into the first inner hole.
  • the fixing part may further include a rolling wheel disposed to be rotated on the fixing block.
  • the tip guide hole may be eccentrically disposed in the tip insulating member.
  • the present invention by integrating the anode to the electrocauterization tip integrally, it is possible to minimize the current flow distance for tissue cauterization in the patient body as compared to the conventional, to prevent burns or electrical shock that may occur to the patient do. Through this, the procedure stability is further improved.
  • the effect of improving the rigidity of the tube can be expected by integrating the conductor and the innermost tube.
  • the wire is wound in a spiral and arranged in a plurality of times and connected in a woven repeating structure, and the shape of the wire is further improved as a whole tube.
  • the size of the electrocauterization tip it is possible to change the diameter precisely, there is an effect that can appropriately adjust the size of the hole in the human tissue in response to the size of the surgical site, the cross-sectional size of the tube, the degree of expansion of the stent.
  • FIG. 1 is a view illustrating a cauterization operation of body tissue using a conventional monopolar electrocautery tip.
  • Figure 2 shows the cauterization operation of body tissue using a bipolar electrocauterization tip.
  • FIG 3 is an external view of the present invention stent delivery system.
  • Figure 4 is a side cross-sectional view showing a connector portion and a second handle portion in the invention shown in FIG.
  • FIG. 5 is a perspective view showing the structure of the bipolar electrocauterization tip of the present invention.
  • FIG. 6 is a perspective view showing a tip insulating member in the invention shown in FIG.
  • FIG. 8 is a perspective view showing another structure of the bipolar electrocauterization tip of the present invention.
  • FIG. 9 is a view showing one embodiment in which an electrode line is connected to an electrical cauterization tip.
  • FIG. 10 is a view showing another form of connecting the electrode wire to the cautery tip.
  • Figure 11 is a side cross-sectional view showing a straight line arrangement structure of the delivery unit and the electrode line in the present invention.
  • Figure 12 is a side cross-sectional view showing a spiral arrangement structure of the delivery unit and the electrode line in the present invention.
  • Figure 13 is a side cross-sectional view showing a woven arrangement structure of the delivery unit and the electrode line in the present invention.
  • Figure 14 is a side cross-sectional view showing the structure of the movement control unit of the present invention.
  • Figure 15 is a side cross-sectional view showing the electrocauterization tip and stent space portion of the present invention.
  • Figure 16 is a side cross-sectional view showing a state guided by the guide wire in the invention shown in FIG.
  • 17 is a view showing the structure of the coupling portion formed in the electrocauterization tip of the present invention.
  • FIG. 18 is a view showing a state in which the variable ring is mounted in the invention shown in FIG.
  • 19 is a side sectional view showing one embodiment of a variable ring
  • 21 to 25 are views showing various forms of the cautery projections of the present invention.
  • 26 and 27 are views showing various forms of the variable ring having different lengths.
  • FIG. 28 is a view showing a state in which the stent is expanded.
  • 29 to 34 is a view showing the operation of the present invention delivers the stent to the interior of the human tissue.
  • Figure 2 is a view showing the cauterization operation of the body tissue using a bipolar electrocauterization tip
  • Figure 3 is an external view of the stent delivery system of the present invention
  • Figure 4 is a connector portion and second handle in the invention shown in Figure 3 It is a side sectional view which shows a part.
  • Figure 5 is a perspective view showing the structure of the bipolar electrolytic cauterization tip of the present invention
  • Figure 6 is a perspective view showing the tip insulating member in the invention shown in Figure 5
  • Figure 7 is a flow of current in the bipolar electrical cauterization tip The figure shown.
  • Figure 8 is a perspective view showing another structure of the bipolar electrocauterization tip of the present invention
  • Figure 9 is a view showing one form of connecting the electrode wire to the electrical cauterization tip
  • Figure 10 is another view connecting the electrode line to the electrical cauterization tip It is a figure which shows the form.
  • 11 is a side cross-sectional view showing a straight line arrangement structure of the delivery unit and the electrode line in the present invention
  • Figure 12 is a side cross-sectional view showing a spiral arrangement structure of the delivery unit and the electrode line in the present invention
  • Figure 13 is a delivery unit and It is a side cross-sectional view which shows the structure of the woven structure of electrode lines.
  • Figure 14 is a side cross-sectional view showing the structure of the movement control unit of the present invention
  • Figure 15 is a side cross-sectional view showing the electrical cauterization tip and the stent space portion of the present invention
  • Figure 16 by the guide wire in the invention shown in Figure 15 A side cross-sectional view showing the induced state.
  • FIG. 2 a method of operation by a circuit system with a bipolar electrocauterization tip 23 is disclosed. This is cited to explain the operating principle of the bipolar electrocauterization tip 23.
  • an external current source 21 is connected to an electrode body of any one of the electrocauterization tips using a conductor 22, and the other electrode body is also externally connected using a conductor 25. It is connected to the current source 21.
  • the electrocauterization tip of the present invention is based on the basic principle described above. Hereinafter, the present invention will be described.
  • the present invention stent delivery system 100 may be configured to include a connector portion 200, electrical cauterization tip 300, transfer portion 400 and the stent space portion 130. .
  • FIG. 3 an overall outline of a stent delivery system 100 in accordance with an embodiment of the present invention is published.
  • An electrical cauterization tip 300 is disposed at the front end portion of the present invention, and a delivery portion 400 is disposed at the middle portion, and is not illustrated, but is not shown in the interior of the delivery portion 400 adjacent to the electrical cauterization tip 300.
  • Stent space portion 130 (see Fig. 15) is disposed.
  • the rear end portion is arranged with a connector 200 connected to the external current source 110.
  • the connector unit 200 may include a plurality of connection connectors 210 connected to the external current source 110 and at least one of the other poles.
  • connection connector 210 may be divided into a first connection connector 221 and a second connection connector 231.
  • a first connection protrusion 223 is disposed at an end of the first connection connector 221, is connected to one pole of the external current source 110 by a conductor, and the first connector body of the first connection connector 221 ( 221 itself may be connected to the first electrode wire 123 in the manner of welding, knot welding, and the like.
  • a second connection protrusion 233 is disposed at an end of the second connection connector 231, is connected to another pole of the external current source 110 by a conductor, and a second connector body of the second connection connector 231. 231 itself may be connected to the second electrode wire 125 in the manner of a welding joint, a knot joint, or the like.
  • the external current source 110 may be a high frequency generator or a low frequency generator, but is not limited thereto.
  • the connector part 200 may be implemented with a conductive metal material through which current flows well.
  • the connector part 200 may be disposed inside the second grip body 481 of the second handle part 480.
  • a wire outlet 403 may be disposed at an end portion of the second grip body 481.
  • the current supplied from the external current source 110 flows to the first connector body 221 through the first connection protrusion 223 and to the connected first electrode line 123.
  • the positive electrode cautery tip 300 flows through the first electrode body 313, the second electrode body 315, and the body to the second electrode line 125 and the second connector body 231 and the second connection protrusion. 233 flows to the external current source 110.
  • the direction of current flow can be reversed.
  • the electrical cauterization tip 300 may be connected to a plurality of electrode wires corresponding to the plurality of connection connectors 210, and at least one of the plurality of electrode bodies 310 may be integrally conducted to another pole.
  • the electrical cauterization tip 300 is disposed on one side of the tip insulating member 320 and the tip insulating member 320 having a tip guide hole 321 therein, and forms a first electrode body. 313 and the second electrode body 315 disposed on the other side of the tip insulating member 320 and forming the other pole.
  • the first connection hole 313a is disposed on the first electrode body 313, and the first electrode line 123 is connected to each other by welding or knot welding.
  • a second connection hole 315a is disposed on the second electrode body 315, which is also a part where the second electrode wire 125 is connected by welding or knot welding.
  • One side of the first electrode body 313 and the second electrode body 315 may be processed in the form of a tear peg in a direction facing each other, so that it is easy to be injected into the body tissue during electrical cauterization.
  • FIG. 6 shows the shape of the tip insulating member 320 disposed between the first electrode body 313 and the second electrode body 315.
  • the front wing portion 322 of the tip insulating member 320 is tapered in the same manner as the electrode body 310, and the step portion 323 is formed in the middle portion thereof, so that the electrode body 310 is stably in the tip insulating member. It can be seated on both sides of the (320).
  • the rear wing 324 is also processed into a slightly protruding shape corresponding to the outer boundary shape of the electrode body 310.
  • a connection hole 325 is also formed in the tip insulation member 320 to provide an electrode wire with a knot joint.
  • the first and second electrode bodies 313 and 315 and the tip insulating member 320 may be interconnected by brazing bonding using a filler made of AgCu or copper or silver, or mutually bonding through dissimilar materials bonding using a polymer. Or may be interconnected by mechanical fitting.
  • the filler having a melting temperature lower than that of the first and second electrode bodies 313 and 315 is used to melt only the filler without melting the first and second electrode bodies 313 and 315.
  • the gap between the tip insulation member 320 and the gap is filled by using the spreadability, wettability, capillary phenomenon, etc. of the molten metal, and thus the deformation and damage of the product can be minimized while maintaining the appropriate strength. have.
  • FIG. 7 a flow direction of the current is shown.
  • the current flowing along the first electrode line 123 to the first electrode body 313 flows along the inside of the body Z and flows toward the second electrode body 315.
  • the second electrode line 315 flows along the second electrode line 125 connected to the second electrode body 315.
  • the electrical cauterization action is generated in the body part (Z).
  • FIG. 8 another form of the presently disclosed cautery tip 300 is disclosed.
  • the electrode body 310 may be divided into four, and in this case, each of the divided electrode bodies 317a, 317b, 317c, and 317d is connected to each of the divided electrode lines 127a, 127b, 127c, and 127d.
  • At least one of the divided electrode bodies may have a different pole from that of the other divided electrode bodies.
  • one of the divided electrode bodies 317a and 317c has an anode and the other divided electrode bodies 317b and 317d have a cathode. Again, the current flows from the anode to the cathode, which leads to an electrocauterization.
  • the electrode body 310 may have a bipartite structure.
  • the quadrant may also be adopted. Therefore, the present invention is not necessarily limited thereto, and other equivalents such as the third and fifth portions may be sufficiently considered according to the intention of the procedure.
  • FIGS. 9 and 10 disclose a method of connecting the first electrode line 123 and the second electrode line 125 to the first electrode body 313 and the second electrode body 315, respectively.
  • FIG. 9 a structure in which the first electrode line 123 and the second electrode line 125 are connected by tying the first connection hole 313a and the second connection hole 315a by a knot method is disclosed.
  • a knot is passed through the connection hole 325 described with reference to FIG. 6.
  • the first electrode line 123 and the second electrode line 125 are formed in the first connection hole 313a and the second connection hole 315a through the welding joint W by resistance welding, laser welding, and lead-free.
  • the structure that connects is posted.
  • connection method of the electrode wire may be implemented in other forms.
  • the transmission unit 400 may have one side associated with the electrical cauterization tip 300 and the other side associated with the connector 200.
  • the transfer unit 400 is the first inner tube 410, the second inner tube 430, the outer tube 450, the first handle 470, the second handle 480 and the moving bar 490. It may be configured to include).
  • the insulating material used in the present invention may be selected from polyurethane, polyester, polyimide, other plastic materials, ceramic, silicone, fluorocarbon resin, teflon, zirconia, sialon, or the like.
  • the present invention is not limited thereto, and other materials may of course be included.
  • the first inner tube 410 is the innermost portion disposed in the delivery unit 400, the first electrode wire 123 connected to the electrocauterization tip 300, and The second electrode line 125 may be disposed.
  • the first inner tube 410 may be divided into three types according to the arrangement of the electrode line 120.
  • the first inner tube 410 is posted.
  • the first inner tube 410 is provided with an insulating coating agent.
  • the first electrode line 123 and the second electrode line 125 are individually coated with insulation, and the first electrode line 123 and the second electrode line 125 are integral with the first inner tube 410.
  • the insulating coating is once again coated, and may be disposed as a straight electrode line 120a along the inner longitudinal direction of the first inner tube 410.
  • the individual insulation coating of the first electrode line 123 and the second electrode line 125 may be omitted.
  • insulation coating of each electrode wire should be performed.
  • first electrode line 123 and the second electrode line 125 are disposed in parallel to each other along the outer longitudinal direction of the first inner tube 410, which is an insulating coating agent, and is disposed on the opposite side of the first inner tube 410.
  • the inner tube 410, the first electrode line 123, and the second electrode line 125 may be insulated and coated together again.
  • the first inner tube 410 has an inner hole 411 formed at the inner center side thereof, and for this purpose, the first inner tube 410 has a predetermined thickness, and the first electrode line 123 and the second electrode line 125 have such a thickness. It may be a structure disposed in the portion and insulated together.
  • the first inner tube 410 may be disposed to penetrate the inside of the moving bar 490. After passing through the moving bar 490, as discussed above, the first electrode wire 123 is connected to the first connection connector 220, and the second electrode wire 125 is connected to the second connection connector 230. Connected.
  • Portions of the ends of the first electrode wire 123 and the second electrode wire 125 that are in contact with the electrical cauterization tip 300 may also be welded and fused and electrically connected as shown in FIG. 15. It is not limited to, knotting is also possible.
  • the moving bar 490 may be made of a conductive material such as a metal material, and an outer circumference of a portion of the moving bar 490 exposed between the first handle part 470 and the second handle part 480. Accordingly, a step is formed in which the diameter is slightly reduced, and an insulating material, which is a bar insulator 493, may be applied to the step to prevent an electric shock of the operator.
  • a conductive material such as a metal material
  • the bar insulator 493 may be a polytetrafluoroethylene (PTFE) coating agent. This is excellent in chemical resistance, heat resistance and the like may be suitable as an insulating material of a medical device using electricity.
  • PTFE polytetrafluoroethylene
  • the first inner tube 410 is provided with an insulating coating agent, and the first electrode line 123 and the second electrode line 125 are each individually coated.
  • the first inner tube 410 is integrally coated once more and may be disposed as an electrode line 120b wound in a spiral direction along the circumference of the first inner tube 410.
  • the first electrode line 123 and the second electrode line 125 may be formed of a conductive metal material, and the first electrode tube 123 and the second electrode line 125 may be wound in a plurality of circuits, and thus, the first inner tube ( As the 410 is disposed, the rigidity of the first inner tube 410 is improved.
  • an inner hole 411 is formed at an inner central side of the first inner tube 410, and for this purpose, the first inner tube 410 has a predetermined thickness.
  • the first electrode line 123 and the second electrode line 125 are separately insulated and disposed in the thickness portion, and thus the first electrode line 123 and the second electrode line 125 are entirely surrounded by an insulating coating agent. 1 It is disposed while winding a plurality of times in a spiral direction along the circumference of the inner tube (410).
  • each of the first electrode lines 123 and the second electrode lines 125 is coated separately, the possibility of a short circuit becomes low. As a result, deterioration of the first inner tube 410 may be prevented.
  • the first inner tube 410 is provided with an insulating coating agent, and the first electrode line 123 and the second electrode line 125 are individually insulating coated.
  • the coating is once again integrally formed with the first inner tube 410, and disposed as a woven electrode line 120c along the circumference of the first inner tube 410.
  • the electrode line 120c may be implemented with a metal material, and the rigidity of the first inner tube 410 is improved as the electrode line 120c is repeatedly disposed in the first inner tube 410 in a woven form.
  • an inner hole 411 is formed at an inner central side of the first inner tube 410, and for this purpose, the first inner tube 410 has a predetermined thickness.
  • the first electrode wire 123 and the second electrode wire 125 are disposed in such a thickness portion, and thus the electrode wire 120c is entirely surrounded by an insulating coating agent to be woven repeatedly along the circumference of the first inner tube 410. It will be arranged in the form.
  • the present invention can strengthen the rigidity of the first inner tube 410 as well as conducting current through the structure of the spiral electrode line 120b and the woven electrode line 120c in the first inner tube 410. Additional effects can be exerted.
  • it is not limited to the helical, woven form, other structures for stiffening will be possible.
  • the second inner tube 430 is disposed to surround a portion of the outer circumference of the first inner tube 410, and is integrally connected with the first inner tube 410. It may be provided to be moved.
  • the second inner tube 430 may be implemented with an insulating material.
  • the second inner tube 430 is disposed to surround a part of the outer circumference of the first inner tube 410, and a sine block 433 pushing the stent 150 includes the second inner tube 430. It can be seen that it is disposed at the end of the).
  • the second inner tube 430 is disposed inside the outer tube 450, it can be seen connected to the outer circumference of the tube connection portion 492 of the moving bar 490 is connected.
  • the first inner tube 410 disposed therein may be connected to the through hole of the tube connection portion 492 of the moving bar 490 to be connected thereto.
  • the first inner tube 410 and the second inner tube 430 connected to the moving bar 490 move together in the moving direction of the moving bar 490. do.
  • the outer tube 450 may be a portion that is arranged surrounding the second inner tube 430 and connected to the end of the first handle 470 in FIGS. 11 and 15. That is, since the outer tube 450 is fixed to the first handle part 470, the outer tube 450 does not move according to the movement of the movement bar 490, but moves the first inner tube 410 and the second inner tube 430. It will serve as a guide and support.
  • the outer tube 450 may be implemented with an insulating material.
  • the stent 150 is not extended in the stent space 130 formed by the first inner tube 410 and the outer tube 450. That is, the stent 150 is disposed along the circumference of the portion of the first inner tube 410 not wrapped by the second inner tube 430, and the stent 150 contacts the inner circumferential surface of the outer tube 450. Remains unexpanded.
  • the stent support block 131 may be disposed on the outer circumferential surface of the first inner tube 410.
  • the first handle part 470 may be a part connected to an end of the outer tube 450, and may be a part provided to be held by the operator to move the movement bar 490.
  • a fixing handle 473 may be disposed at one side of the first handle 470. If the operator wants to limit the movement of the moving bar 490 after moving the moving bar 490, the operator may turn the fixing handle 473 in one direction. Although not shown in the drawings, when the fixing handle 473 is turned in one direction, the movement of the movement bar 490 is limited by pressing the movement bar 490. On the contrary, if the moving bar 490 is to be moved again, the operator may loosen the pressure on the moving bar 490 by turning the fixing handle 473 in the opposite direction.
  • This fixation handle 473 is provided to position the stent 150 at the correct body tissue site when the stent 150 is adjacent to the body tissue site to be expanded. If the movement bar 490 moves during the procedure, the position of the stent 150 may be incorrectly disposed.
  • the transmission unit 400 may further include a movement control unit 475 for stepwise adjusting the movement of the first grip body 471 moving along the movement bar 490. On the contrary, this may be to gradually adjust the movement of the movement bar 490 in relation to the first grip body 471.
  • the movement control unit 475 may be configured to include an uneven portion 476 and the fixing portion 477.
  • the uneven portion 476 may be formed a plurality of times bent along the longitudinal direction of the moving bar 490.
  • the fixing part 477 is coupled to the uneven part 476 to gradually fix the movement of the first grip body 471 moving along the moving bar 490. It can be placed inside.
  • the fixing part 477 may be configured to include the elastic body 478 and the fixing block 479 again in detail.
  • the elastic body 478 may be disposed on an inner space 471a formed in the first handle part 470.
  • the elastic body 478 may be in the form of a coil spring, a leaf spring, or the like, but is not limited thereto if it can provide an elastic force.
  • the fixing block 479 may be implemented such that one side thereof is close to the elastic body 478 and the other side thereof protrudes into the first inner hole 472.
  • the rolling wheel 490 may be disposed on the rolling wheel 479a on the fixing block 479 so that the bending shape of the uneven portion 476 can be easily crossed.
  • the completeness of the stent procedure may vary depending on the treatment environment and the skill of the operator. If the operator is immature, the moving bar 490 is forcibly pulled or the moving bar 490 is shaken during the pulling process, and the vibration is transmitted to the stent, and thus self-expansion of the stent may not be smooth.
  • step by step by moving the outer tube 450 by pulling the moving bar 490
  • the stent is also exposed slowly step by step Will be proceeded to. This leads to accurate self-expansion of the stent, and the treatment effect is also improved. The carelessness of the operator may be alleviated or prevented even more.
  • FIGS. 15 and 16 a cross-sectional side view of the electrical cauterization tip 300 is posted.
  • the tip insulating member 320 has a tip guide hole 321 is inserted into the guide wire 140 is inserted in the center side.
  • the first electrode body 313 and the second electrode body 315 are disposed on both surfaces of the tip insulating member 320, and are welded and connected to the first electrode line 123 and the second electrode line 125, respectively. have. Of course, knotting is also possible.
  • a portion of the outer circumferential surface of the electrode body 310 may be insulated coated by a molding method by an external insulator 380. This is to prevent current from flowing from the body part to a part other than the tissue to be cauterized.
  • the electrode body 310 may have a circular cross-sectional shape as a whole, and the electrode body 310 may be a conductive material such as a metal material as a current is applied to heat a body tissue to form a hole.
  • the electrode body 310 may be a conductive material such as a metal material as a current is applied to heat a body tissue to form a hole.
  • it may be a metal material such as stainless or Ni + Ti alloy.
  • the end portion 380a of the outer insulator 380 may be molded in a tapered shape, and the structure may be pulled back from the electrical cauterization tip 300 after transferring the stent 150 from body tissue. This helps to make the removal relatively easy.
  • a part of the external insulator 380 may be implemented in a tapered shape in a direction opposite to one side of the first and second electrode bodies 313 and 315, which is more smoothly pulled out when the electrical cauterization tip 300 is removed from the body. To make it come out.
  • Body tissue is mainly made of protein, even if the cauterization hole is formed by the electrical cauterization tip 300, due to the flexibility of the body tissue has a property that the cauterization hole is narrowed.
  • the cauterization hole widens as it opens in a tapered shape, The electrocauterization tip 300 is easily pulled out.
  • the first inner tube 410 is inserted into the outer insulator 380 and adhered to the electrode body 310.
  • the external insulator 380 is not necessarily limited to the above forms.
  • Figure 17 is a view showing the structure of the coupling portion formed in the electrical cauterization tip of the present invention
  • Figure 18 is a view showing a state in which the variable ring is mounted in the invention shown in Figure 17
  • Figure 19 is one form of the variable ring
  • Figure 20 is a side cross-sectional view
  • Figure 20 is a side cross-sectional view showing another form of the variable ring
  • Figures 21 to 25 are views showing various forms of the cautery projections of the present invention
  • Figure 26 and 27 have a different length It is a figure which shows the various forms of a variable ring.
  • the coupling part 330 and the variable ring 350 may be further included.
  • the coupling part 330 may be disposed on a portion of the outer circumferential surface of the electrode body 310 and the tip insulating member 320.
  • the coupling part 330 may be provided in the form of a thread in the embodiment of the present invention, but since the contact portion is in contact with the body tissue, the protrusion of the thread may be smoothly rounded to prevent fine damage of the body tissue. have.
  • These threads may be processed on the tip insulating member 320 as well as the electrode body 310.
  • variable ring 350 may be a portion connected to the coupling part 330 to vary the diameter of the electrode body 310.
  • the variable ring 350 may have a circular ring shape, and a thread corresponding to the thread of the coupling part 330 may be processed on the inner circumferential surface thereof, and may be provided by being smoothly rounded.
  • the first ring part 351 of the variable ring 350 may be formed of the same material as that of the electrode body 310, that is, a conductive metal material.
  • the first ring portion 351 of the variable ring 350 also functions to puncture body tissue.
  • the second ring part 353 of the variable ring 350 may be formed of an insulating material in the same manner as the tip insulating member 320 in order to exhibit the characteristics of the anode type cauterization tip 300.
  • the outer circumferential surface of the variable ring 350 may be rounded.
  • the rounding outer peripheral surface treatment does not damage the body tissue more smoothly. Or exit.
  • it is in close contact with the electrode body 310 and electrically connected it is possible to adjust the diameter range to puncture the body tissue.
  • the electrode body 310 may be used while the variable ring 350 is separated, and the part of the body tissue to which the stent 150 is to be delivered is reversed. If you want to make a slightly larger hole in the, the electrode body 310 may be used while the variable ring 350 is fitted.
  • variable ring 350 In the exemplary embodiment of the present invention, only one rounded variable ring 350 is provided, but the rounded shape on the variable ring 350 may be more diverse, and other ranges may be inferred from the present invention. Shapes can of course also be included.
  • the outer peripheral surface of the variable ring 350 may be implemented in a tapered form.
  • one side of the outer peripheral surface of the variable ring 350 may be processed into a tapered shape in the same direction as the electrode body 310, the other side of the outer peripheral surface of the variable ring 350 in the same direction as the external insulator 380 It can be machined into a tapered shape.
  • the electrode body 310 when the electrode body 310 enters the inside of the body tissue or exits after the stent 150, the electrode body 310 is tapered in the same direction as the electrode body 310 or the external insulator 380. It can prevent the problem of getting caught.
  • variable ring 350 In the exemplary embodiment of the present invention, only one tapered variable ring 350 is provided, but the shape of the tapered shape on the variable ring 350 may be more various, and other ranges may be inferred from the present invention. Shapes can of course also be included.
  • one side of the outer circumferential surface of the variable ring 350 may be tapered to an angle ⁇ 2 smaller than the angle ⁇ 1 of the electrode body 310, and the outer circumferential surface of the variable ring 350 The other side may be tapered at an angle smaller than that of the external insulator 380.
  • variable ring 350 Even if the variable ring 350 is mounted on the electrode body 310 through such processing, the size of the hole cauterized in the body tissue by heat caused by the conducted current can be further reduced. Of course, not only can you reduce the size of the cauterization hole, but you can also expand it.
  • the operator may be provided with a plurality of variable ring 350 having a taper angle, it may be used by changing the variable ring 350 in accordance with the size of the hole of the body tissue to be cauterized.
  • an adhesion pad may be provided on at least one side of the coupling part 330 to prevent a space between the inner circumference of the variable ring 350 and the outer circumference of the electrode body 310. 360 may be disposed.
  • the contact pads 360 are disposed at both sides of the coupling part 330.
  • the contact pads 360 may have a ring shape and may be disposed by being pressed along the outer circumferential surface of the electrode body 310.
  • the adhesion pad 360 may be a flexible insulating material protruding slightly outward than the coupling portion 330.
  • the inner circumferential surface of the variable ring 350 and the electrode body 310 and the tip insulating member 320 may be removed. There is no space between the outer circumferential surface is close enough. This is because when the electrode body 310 enters or exits the body tissue, blood and tissues are spaced at a spaced interval between the variable ring 350 and the electrode body 310 and the tip insulating member 320. ) Can be prevented from getting caught.
  • first ring part 351 and the electrode body 310 of the variable ring 350 are both made of a metallic material, mechanical perfect fit is difficult and minute spacing occurs.
  • the adhesion pad 360 is to block this separation, which helps in the precision of the human medical device.
  • the spacing between the second ring portion 353 and the tip insulating member 320 of the variable ring 350 is better than the spacing between the first ring portion 351 and the electrode body 310 due to the nature of the insulating material, It is also possible to block the occurrence of the gap by the close contact pad 360.
  • FIG. 1 the shape which looked at the electrode body 310 which concerns on this invention from the front side is shown by FIG.
  • the tip guide hole 321 is disposed eccentrically.
  • the electrode body 310 in which the eccentric tip guide holes 321 are processed is not generally used, but may be used according to a treatment environment.
  • an eccentric tip guide hole (when the electrode body 310 is moved to a blood vessel in a desired direction) is inserted.
  • the electrical cauterization tip 300 may further include a cautery protrusion 370 formed on the outer circumferential surface of the electrode body 310 as illustrated in FIGS. 23 to 25.
  • the cautery protrusions 370 may be arranged in plural on the outer circumferential surface of the electrode body 310 at predetermined intervals.
  • FIG. 23 two tenant protrusions 370 disposed at 180 degree intervals and four tenant protrusions 370 arranged at intervals of 90 degrees are disposed in FIG. 24. Since the cauterization direction is guided, the effect of minimizing damage to body tissues can also be expected. As shown in FIG. 25, the cautery protrusion 370 may be arranged in a spiral rather than a straight line.
  • the cavernous projections 370 may be arranged at different intervals instead of at predetermined intervals, and other forms that may be inferred from the present invention may be included in embodiments of the present invention.
  • variable ring 350 may be provided to have different thicknesses.
  • the variable ring 350 having a part thickness D1 of the variable ring 350 larger than the thickness D2 of the other part is formed. ) To be used.
  • variable ring in which the thickness D3 of one portion of the variable ring 350 is thicker than the thickness D4 of the other portion is shown. It is to use the 350.
  • variable ring 350 Although the shape of the variable ring 350 is shown in FIG. 26 and FIG. 27, it will be apparent that the variable ring 350 having various thicknesses that can be inferred within the range having the same purpose may be included.
  • the spacing between the plurality of cautery projections 370 may be an insulation coating.
  • the electrode body 310 is insulation coated, cauterizing the body tissue is performed only by the cautery protrusion 370, thereby reducing the cauterization range of the body tissue.
  • the variable ring 350 may also be considered to insulated coating.
  • FIG. 28 is a view illustrating a state in which the stent is expanded
  • FIGS. 29 to 34 are views illustrating an operation process of delivering the stent into the human tissue. Reference numerals required for the description of the operation state refer to FIGS. 3 to 16.
  • the operator inserts the guide wire 140 in order to accurately specify a position inside the body to be operated on the stent 150 and to guide the input path of the stent 150. That is, in FIG. 29, the guide wire 140 is inserted into the portions T1 and T2 of the body tissue to be treated with the stent 150.
  • the operator may use the guide wire 321 in the tip guide hole 321 of the tip insulation member 320.
  • the end of the 140 is fitted, so that the guide wire 140 is introduced into the tip guide hole 321, the inner hole 411 of the first inner tube 410, the binder hole of the moving bar 490
  • the second inner hole 482 formed at the 491 and the second grip body 481 may be positioned to penetrate the second inner hole 482.
  • the operator grasps the entire stent delivery system 100 and pushes it toward the guidewire 140. Accordingly, the outer tube 450 and the electrical cauterization tip 300 are introduced into the interior (T1, T2) of the body tissue.
  • the connector unit 200 receives a current from the external current source 110, the first electrode line 123 is connected to the positive terminal of the external current source 110 (for convenience of description it is assumed that the first electrode line is connected to the positive electrode) The current flows in, and the first electrode body 313 connected to the first electrode line 123 has an anode.
  • the second electrode line 125 is connected to the negative electrode terminal of the external current source 110 (assuming that the second electrode line is connected to the negative electrode for convenience of description), and the second electrode body 315 connected to the second electrode line 125. This cathode is taken.
  • the current E flowing in the first electrode body 313 flows into the body tissue T1 and flows to the second electrode body 315 at the shortest distance.
  • This electrocauterization proceeds in the same manner in other body tissues T2, and after completion of the hole creation, the outer tube 450 may be stably introduced into the interior T1 and T2 of the body tissues.
  • the operator pulls out the guide wire 140 through the wire outlet 403 located at the rear end of the second inner hole 482, so that the parts T1 and T2 of the body tissue and the stent delivery system 100 are removed. Remove the guide wire 140 from the inside.
  • the operator grasps the first handle 470 and the second handle 480, and the first handle 470 holds the second handle 480. Pull in the direction of.
  • the first handle part 470 is connected to the outer tube 450 and the second handle part 480 is connected to the second inner tube 430 by the moving bar 490, the first handle part ( The outer tube 450 retreats while the 470 moves along the movement bar 490.
  • the first inner tube 410 in place as the outer tube 450 is reversed is the outer tube 450. Will be exposed out of.
  • the stent 150 disposed in the stent space portion 130 may have the inside of the body tissue T1 and T2. Will be exposed.
  • the stent 150 is unfolded through self-expansion, and performs its function at desired areas T1 and T2 of body tissues.
  • 29 to 34 illustrate an unfolded state of the stent 150 for connecting the two regions T1 and T2 of body tissues.
  • the present invention is directed to a circulatory system such as a constricted or blocked blood vessel, urethra, lung, or the like. It can also be used to expand the circulatory system such as blood vessels, urethra, lungs.
  • the stent 150 may be used for a suitable purpose in other body tissues as needed.
  • the stent 150 is relatively pushed by the sine block 433 disposed at the end of the second inner tube 430. That is, one end of the stent 150 is blocked and fixed by the sine block 433, and at this time, since the outer tube 450 is moved in the rearward direction, from the other end of the stent 150 to the outside of the outer tube 450. It will be open.
  • the stent 150 is located inside the body tissues T1 and T2 and slowly expands itself.
  • the operator can check the placement position of the current stent in the body tissue by identifying the position of the sign block 433.
  • the sign block 433 may be painted in a color that can be identified by the operator.
  • the operator slightly pulls the partially extended stent 150 as shown in FIG. 33 to accurately position the stent 150 in the desired body tissue, and then further retracts the first handle part 470 along the moving bar 490. By doing so, the entire stent 150 is fully self-expanding.
  • the stent delivery system 100 is slowly pulled out of the body tissue and the stent procedure is completed.
  • the present invention relates to a stent delivery system, and more particularly, to a stent delivery system that improves procedure stability by integrally conducting an anode to an electrical cauterization tip and minimizing a current flow distance in the body.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Otolaryngology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un système de placement de stent comprenant : une source de courant externe ; une unité de connecteur qui comprend une pluralité de connecteurs, dont au moins un est connecté à une électrode différente ; une pointe de cautérisation électrique qui comprend de façon intégrée une pluralité d'électrodes connectées par l'intermédiaire d'une pluralité de listes d'électrode correspondant à la pluralité de connecteurs, au moins une des électrodes étant connectées à une électrode différente ; une partie de placement comportant un côté associé à la pointe de cautérisation électrique et un côté opposé associé à l'unité de connecteur, les lignes d'électrode reliant la pointe de cautérisation électrique et l'unité de connecteur étant disposée à l'intérieur de la partie de placement ; et un espace de stent disposé à l'intérieur de la partie de placement de façon à être adjacent à la pointe de cautérisation électrique. Selon la présente invention, une anode est construite de façon intégrée avec la pointe de cautérisation électrique afin de réduire au minimum la distance de circulation de courant dans un corps humain, de façon à améliorer la stabilité de chirurgie.
PCT/KR2017/001172 2016-02-15 2017-02-03 Système de placement de stent comprenant une pointe de cautérisation électrique de type anode WO2017142236A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018538692A JP6793736B2 (ja) 2016-02-15 2017-02-03 双極型電気焼灼チップが備えられたステント伝達システム
US16/072,520 US11045252B2 (en) 2016-02-15 2017-02-03 Stent delivery system including anode-type electrical cautery tip
EP17753397.3A EP3417836A4 (fr) 2016-02-15 2017-02-03 Système de placement de stent comprenant une pointe de cautérisation électrique de type anode
CN201780008243.1A CN108601665A (zh) 2016-02-15 2017-02-03 包括双极电烙器的支架传递系统

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20160017157 2016-02-15
KR10-2016-0017157 2016-02-15
KR10-2017-0013801 2017-01-31
KR1020170013801A KR101781052B1 (ko) 2016-02-15 2017-01-31 양극형 전기 소작 팁이 포함된 스텐트 전달 시스템

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862853A (zh) * 2016-11-16 2019-06-07 太雄医疗器株式会社 包括单极型电烙尖端的支架输送系统
WO2019237481A1 (fr) * 2018-06-13 2019-12-19 南微医学科技股份有限公司 Dispositif d'implantation d'endoprothèse à perforation à chaud

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KR20070105767A (ko) * 2006-04-27 2007-10-31 전명기 소작용 전극
KR20100010907A (ko) * 2008-07-23 2010-02-02 올림푸스 메디칼 시스템즈 가부시키가이샤 고주파 처치구
KR20130140954A (ko) * 2012-05-18 2013-12-26 (주) 태웅메디칼 소작 겸용 스텐트 시술장치
KR101493766B1 (ko) * 2013-08-12 2015-02-17 재단법인 아산사회복지재단 카테터가 구비된 고주파 소작장치

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Publication number Priority date Publication date Assignee Title
KR20070105767A (ko) * 2006-04-27 2007-10-31 전명기 소작용 전극
KR20100010907A (ko) * 2008-07-23 2010-02-02 올림푸스 메디칼 시스템즈 가부시키가이샤 고주파 처치구
KR20130140954A (ko) * 2012-05-18 2013-12-26 (주) 태웅메디칼 소작 겸용 스텐트 시술장치
KR101493766B1 (ko) * 2013-08-12 2015-02-17 재단법인 아산사회복지재단 카테터가 구비된 고주파 소작장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862853A (zh) * 2016-11-16 2019-06-07 太雄医疗器株式会社 包括单极型电烙尖端的支架输送系统
CN109862853B (zh) * 2016-11-16 2022-01-11 太雄医疗器株式会社 包括单极型电烙尖端的支架输送系统
WO2019237481A1 (fr) * 2018-06-13 2019-12-19 南微医学科技股份有限公司 Dispositif d'implantation d'endoprothèse à perforation à chaud

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