CN217041053U - Medical electromagnetic induction anastomosis guide wire and guide wire anastomosis device - Google Patents

Abstract

The utility model discloses a medical electromagnetic induction kiss wire and a wire kiss device, wherein the wire kiss device comprises a pair of kiss wires, and the kiss wires comprise a wire body and an electromagnetic controller; the guide wire body comprises a mandrel, a sleeve sleeved at the far end of the mandrel and a connector positioned at the end head of the far end of the mandrel, the sleeve comprises a spiral conductive coil, an electromagnetic controller is electrically connected with the sleeve and used for controlling the current state in the sleeve so as to enable the connector to generate or lose magnetic attraction; the connecting head is provided with an inosculating part which is matched with the ends of the guide wires to be butted, so that the ends of the guide wires which are butted together are butted in a seamless way; the directions of the magnetic fields generated by the sleeves in the pair of anastomosis guide wires are opposite; through the kiss wire with the structure, the wire can quickly enter a branch blood vessel, so that the interventional therapy speed is accelerated, and the quality of the interventional therapy is effectively improved.

Description

Medical electromagnetic induction kiss guide wire and guide wire kiss device

Technical Field

The utility model relates to an intervention formula medical instrument technical field especially relates to a medical electromagnetic induction kiss seal wire and seal wire kiss device.

Background

The guide wire plays a role in guiding various interventional catheters and implantation instruments into a target part of a body lumen in an interventional treatment process, for example, the guide wire is used in operations such as percutaneous peripheral angioplasty operation and cardiovascular disease interventional treatment, and the guide wire plays a role in guiding, supporting, opening and exchanging in the interventional operation. The guide wire can guide and support the catheter to enter the blood vessel through the puncture hole through subcutaneous tissues, vessel walls and other soft tissues; guiding a catheter through the tortuous, hardened blood vessel selectively or super selectively into the examined blood vessel branch; the hardness of the catheter is enhanced, and the catheter is convenient to operate.

However, in the process of using the guide wire in a complex vascular vein, a situation (herringbone blood vessel) that two branch blood vessels converge at a certain position to form a main blood vessel is usually encountered, and when the two branch blood vessels are dredged by using the guide wire in the prior art, the two branch blood vessels are usually dredged after the guide wire is bent in the blood vessel. The single guide wire is difficult to operate in the process of dredging the blood vessel, the treatment time is prolonged, and the optimal treatment time is easily missed. If the included angle of two branch vessels is small, the single guide wire can be dredged only by bending at a large angle in the vessel, so that the time consumed is long, and the vessel is easily broken.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a medical electromagnetic induction kiss wire and a wire kiss device which are applied to the branch vessel penetration in the interventional therapy process and do not need to manually bend the wire.

In order to realize the aim, the utility model discloses a medical electromagnetic induction kiss wire, which comprises a wire body and an electromagnetic controller; the guide wire body comprises a mandrel, a sleeve sleeved at the distal end of the mandrel and a connector positioned at the end head of the distal end of the mandrel, the sleeve comprises a spiral conductive coil, the electromagnetic controller is electrically connected with the sleeve and is used for controlling the current state in the sleeve so as to enable the connector to generate or lose magnetic attraction; the connecting head is provided with an inosculating part matched with the connecting head of the other pair of kissing guide wires to be butted, so that the ends of the pair of butted guide wires are butted in a seamless way.

Preferably, the anastomotic portion comprises a protrusion or a recess provided at an end of the connecting head.

Preferably, the contour of the anastomotic portion is any one of circular, rectangular, and regular polygonal.

Preferably, the mandrel has a diameter that tapers from the proximal end to the distal end or a stiffness that tapers from the proximal end to the distal end.

Preferably, the mandrel comprises a main body section at the proximal end and a guide section at the distal end, the sleeve is sleeved on the guide section, and the outer diameter of the sleeve is equivalent to that of the main body section.

Preferably, the guide section comprises a first taper section, an extension section, a second taper section and a head section which are connected in sequence, wherein the wider end of the first taper section is connected with the main body section, the narrower end of the first taper section is connected with the extension section, the wider end of the second taper section is connected with the extension section, and the narrower end of the second taper section is connected with the head section.

Preferably, the wire threading device further comprises a wire threading hole penetrating through the main body section and the first conical section, and the wire threading hole is used for threading a wire for connecting the sleeve and the electromagnetic controller.

Preferably, the outer wall of the sleeve or/and the connector is further provided with a smooth coating.

The utility model discloses still disclose a seal wire kiss device, it includes a pair of as above medical electromagnetic induction kiss seal wire, it is a pair of in the kiss seal wire the magnetic field opposite direction that the sleeve pipe produced.

Compared with the prior art, in the interventional therapy, when the branch blood vessel implantation operation is carried out by adopting the anastomosis guide wire with the structure, the pair of guide wires can be adopted to enter from the two branch blood vessels respectively, when two connectors of the pair of guide wires meet at the junction of the two branch blood vessels, current is provided for sleeves on the pair of guide wires through an electromagnetic controller connected with the pair of guide wires respectively, and according to the electromagnetic induction principle, the connectors at the far ends of the pair of guide wires generate magnetism with opposite magnetism, so the two connectors of the pair of guide wires can be quickly magnetically attracted and butted in the blood vessel, and meanwhile, the connection strength of the pair of guide wires can be enhanced through an anastomosis part; therefore, the kiss guide wire with the structure can quickly enter branch blood vessels, accelerate the treatment speed and effectively improve the quality of interventional therapy.

Drawings

Fig. 1 is a schematic plan view of the medical electromagnetic induction kissing guide wire in the embodiment of the present invention.

Fig. 2 is a schematic plan view of a set of connectors cooperatively connected according to one embodiment of the present invention.

Fig. 3 is a schematic view of a usage state of the guide wire butt joint in the embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

The embodiment discloses a guide wire kissing device, which is used for guide wire penetration work of a branch blood vessel in an interventional therapy, and comprises a pair of kissing guide wires with an electromagnetic induction function, when a branch blood vessel is encountered, as shown in fig. 3, the pair of kissing guide wires P1 and P2 can enter from two sides of the branch blood vessel L1 and L2 respectively, and when the two pairs of kissing guide wires P1 and P2 meet at a junction D0 of the two branch blood vessels L1 and L2, the two pairs of kissing guide wires are automatically adsorbed together through magnetic adsorption force, so that the pair of kissing guide wires P1 and P2 become a complete guide wire, and the guide wire bending operation at a bending branch in the blood vessel is not needed.

Specifically, as shown in fig. 1, any pair of kissing wires in the present embodiment comprises a wire body 1 and a solenoid controller 20. The guide wire body 1 comprises a mandrel 10, a sleeve 11 sleeved on the distal end of the mandrel 10 and a connector 12 located at the distal end of the mandrel 10, the sleeve 11 comprises a spiral conductive coil, an electromagnetic controller 20 is electrically connected with the sleeve 11, and the electromagnetic controller 20 is used for controlling the current state in the sleeve 11 so that the connector 12 generates or loses magnetic attraction. The connector 12 is provided with an inosculating part 120 matched with another pair of kissing guide wire connectors to be docked, so that the ends of a pair of docked guide wires are seamlessly docked. The spiral conductive coil in this embodiment is a spiral spring coil with conductive properties.

When the anastomosis guide wire with the structure is adopted to carry out interventional operation, after the pair of anastomosis guide wires respectively enter the junction of two branch blood vessels from two sides of the branch blood vessels, the electromagnetic controllers 20 respectively connected with the pair of anastomosis guide wires are started, so that the spindle 10 and the connector 12 of the pair of encountered anastomosis guide wires generate magnetism with opposite polarities, the two connectors 12 of the pair of guide wires can be quickly magnetically attracted in the blood vessels for butt joint, and meanwhile, the connection strength of the pair of guide wires can be enhanced through the anastomosis part 120. When a pair of the anastomosis guide wires are adsorbed together, one pair of the anastomosis guide wires can be continuously pushed in, so that the pair of the anastomosis guide wires completely pass through the bifurcation blood vessel, then the electromagnetic controller 20 is closed, the other pair of the anastomosis guide wires are drawn out, and the catheter passes through the bifurcation blood vessel according to the path of the anastomosis guide wires detained in the blood vessel. In addition, after the pair of the anastomosis guide wires are adsorbed together, the magnetism of the pair of the anastomosis guide wires can be continuously kept, and the catheter passes through the bifurcation blood vessel according to the path of the pair of the anastomosis guide wires.

Therefore, the kiss guide wire with the structure can quickly pass through a branch blood vessel, accelerate interventional therapy and effectively improve the quality of interventional therapy. It should be noted that the direction of the magnetic field generated by the sleeves 11 on the pair of anastomosis wires can be reversed by controlling the flowing direction of the current in the pair of anastomosis wires.

Specifically, the helical coils forming the sleeves 11 in the pair of anastomosis wires may be wound in opposite directions so that the two sleeves 11 have opposite magnetic polarities when current is applied thereto, or the pair of sleeves 11 may have opposite magnetic polarities when current is applied thereto by virtue of different electrode connections with the electromagnetic controller 20. Moreover, the strength of the current output by the electromagnetic controller 20 can be used for controlling the connection strength of the connectors 12 of the pair of the anastomosis guide wires, so that the operation is convenient.

As shown in fig. 1, in order to make the connectors 12 of a pair of anastomosis wires seamlessly butted together, the connectors 12 are made of a magnetic conductive material, and the anastomosis portion 120 includes a convex portion or a concave portion disposed on the end portion of the connectors 12. As shown in fig. 2, the connector 12 of one of the pair of mating wires for mating is a convex portion 120, and the connector 12 of the other is a concave portion 120 ', and when mating, the convex portion 120 and the concave portion 120' of the pair of mating wires are fitted together. Specifically, the contour of the engaging portion 120 is any one of a circle, a rectangle, and a regular polygon.

Referring again to figure 1, to ensure both support and distal flexibility of the anastomosis wire mandrel 10, the mandrel 10 may be tapered in diameter from the proximal end to the distal end, or may be tapered in stiffness from the proximal end to the distal end. Specifically, the mandrel 10 includes a main body section 100 at the proximal end and a guiding section 101 at the distal end, the cannula 11 is sleeved on the guiding section 101, the outer diameter of the cannula 11 is equivalent to the outer diameter of the main body section 100, and since the guiding section 101 of the mandrel 10 is located in the cannula 11, the diameter of the guiding section 101 of the mandrel 10 is smaller than that of the main body section 100.

More specifically, the guide section 101 includes a first tapered section 102, an extension section 103, a second tapered section 104, and a head section 105 connected in this order, a wider end of the first tapered section 102 being connected to the main body section 100, a narrower end of the first tapered section 102 being connected to the extension section 103, a wider end of the second tapered section 104 being connected to the extension section 103, and a narrower end of the second tapered section 104 being connected to the head section 105. In this embodiment, by designing the first tapered section 102, the second tapered section 104, the extension section 103 with a larger diameter, and the head section 105 with a smaller diameter, and matching with the spiral structure of the sleeve 11, the flexibility, pushing force, supporting force, bending resistance, and torque transmission performance of the kiss wire are effectively improved.

In order to facilitate the electrical connection between the electromagnetic controller 20 and the sleeve 11, the anastomosis guide wire in this embodiment further includes a threading hole penetrating through the main body segment 100 and the first tapered segment 102, and the threading hole is used for threading the lead 3 connecting the sleeve 11 and the electromagnetic controller 20.

In addition, since the sleeve 11 is in a spiral coil structure, in order to ensure the trafficability of the anastomosis wire in the blood vessel, a smooth coating 13 is further provided on the outer wall of the sleeve 11 and/or the connector 12. The lubricious coating 13 is selected from a hydrophilic coating or a hydrophobic coating. The hydrophilic coating can be selected from polyvinylpyrrolidone coating, half-ester methyl vinyl ether-maleic anhydride copolymer coating, transparent acid ester acrylic acid coating, etc. The hydrophobic coating can be selected from PTFE coating, silicone coating, etc.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, so that the present invention will not be limited by the accompanying claims.

Claims (9)

1. A medical electromagnetic induction kiss wire is characterized by comprising a wire body and an electromagnetic controller; the guide wire body comprises a mandrel, a sleeve sleeved at the distal end of the mandrel and a connector positioned at the end head of the distal end of the mandrel, the sleeve comprises a spiral conducting coil, the electromagnetic controller is electrically connected with the sleeve, and the electromagnetic controller is used for controlling the current state in the sleeve so as to enable the connector to generate or lose magnetic attraction; the connecting head is provided with an inosculating part matched with the other pair of kiss guide wire connecting heads to be butted, so that the ends of the guide wires butted together are in seamless butt joint.

2. The medical electromagnetic induction anastomosis wire according to claim 1, wherein said anastomosis portion comprises a protrusion or recess disposed at an end of said connector.

3. The medical electromagnetic induction anastomosis wire according to claim 2, wherein said anastomosis portion has a contour which is any one of circular, rectangular and regular polygonal.

4. The medical electromagnetic induction kissing wire according to claim 1, wherein said mandrel is tapered in diameter or weakened from proximal end to distal end.

5. The medical electromagnetic induction anastomosis guide wire according to claim 4, wherein the mandrel comprises a main body section at a proximal end and a guide section at a distal end, the cannula is sleeved on the guide section, and the outer diameter of the cannula is equivalent to that of the main body section.

6. The medical electromagnetic induction kiss wire according to claim 5, wherein the guiding section comprises a first tapered section, an extending section, a second tapered section and a head section which are connected in sequence, wherein a wider end of the first tapered section is connected with the main body section, a narrower end of the first tapered section is connected with the extending section, a wider end of the second tapered section is connected with the extending section, and a narrower end of the second tapered section is connected with the head section.

7. The medical electromagnetic induction anastomosis guide wire according to claim 6, further comprising a threading hole penetrating through the main body section and the first conical section, wherein the threading hole is used for threading a lead wire connecting the sleeve and the electromagnetic controller.

8. The medical electromagnetic induction anastomosis guide wire according to claim 1, wherein a smooth coating is further provided on an outer wall of the cannula and/or the connector.

9. A guide wire anastomosis device, comprising a pair of medical electromagnetic induction anastomosis guide wires according to any one of claims 1 to 8, in which the magnetic fields generated by the cannulae of said pair of wires are in opposite directions.

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