Medical energy guide wire

Abstract

A medical energy guide wire comprises a head end and a guide wire pushing rod, an energy discharge electrode assembly is axially arranged at the far end of the guide wire pushing rod, the guide wire pushing rod is of a cavity structure, the cavity structure forms a liquid inlet channel, the far end of the guide wire pushing rod is a hollow-out section of the guide wire pushing rod of a hollow-out structure, and a liquid inlet is formed in the near end of the guide wire pushing rod. The mode that the electrode ring and the guide wire are combined is adopted, a shock wave emitting channel is established, a shock wave emitting path of the energy guide wire takes the guide wire as the axis, the shock wave emits energy to the periphery of the electrode through a passage which is formed after liquid injection and can transmit energy, the caliber of a calcification narrow channel is expanded, calcification lesions are loosened, and the calcification effect is improved. The energy can cover a wider lesion area and act on the lesion area more evenly, local damage to the blood vessel wall is reduced, large-range calcification lesions can be treated more effectively, the strength and direction of shock waves can be better controlled in the operation process, the success rate of an operation is remarkably increased, and the operation time of the operation is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical guide wire, concretely relates to a medical energy guide wire and belongs to the technical field of medical devices. BACKGROUND

[0002] Coronary chronic total occlusion (CTO) intervention operation is difficult and time-consuming. The guide wire, balloon and stent can be called the three horses in CTO interventional therapy. Among the three, the guide wire seems to be relatively small, but in the interventional operation, the accurate selection of the guide wire is one of the key factors for the success of the operation. At present, the Soundbite oscillation wave guide wire through system is commonly used in CTO interventional therapy. The system is composed of a SoundBite oscillation wave system console and a guide wire. The outer layer of the guide wire is covered with a PTFE (polytetrafluoroethylene) coating. The total length reaches 300 centimeters. The distal end of the guide wire is 1 millimeter away from the head end and is the working section of the oscillation wave, which is provided with a platinum marker. When the console is activated, the guide wire releases the oscillation wave, forms an amplitude pressure pulse, and rapidly advances inside the blood vessel. These high-intensity vibrations can effectively cause the calcified plaque to crack or produce small cracks, thereby helping the guide wire to pass through the occluded part. However, although the high-intensity vibration can act on the calcified plaque, it can only open a channel with a diameter similar to that of the guide wire. The channel is still narrow, and it is difficult to pass through the instrument. In clinical practice, there are still many problems such as long time consumption and low success rate. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems, the utility model designs a medical energy guide wire, and the technical scheme is as follows:

[0004] A medical energy guide wire, from far to near, is sequentially provided with a head end and a guide wire push rod. An energy release electrode assembly is arranged on the distal end of the guide wire push rod in the axial direction. The guide wire push rod is a hollow structure. The hollow structure forms a liquid inlet channel. The distal end of the guide wire push rod is a guide wire push rod hollow section with a hollow structure. The proximal end of the guide wire push rod is provided with a liquid inlet port communicating with the liquid inlet channel.

[0005] Optionally, the head end is provided with a developing elastic assembly.

[0006] Optionally, the guide wire push rod is a segmented structure, sequentially provided with a guide wire push rod hollow section, a guide wire push rod pitch gradient spiral cutting section, a guide wire push rod variable diameter section and a guide wire push rod circular tube section from far to near. The main purpose of the hollow design of the guide wire push rod hollow section is to make the distal end of the guide wire push rod softer near the head end.

[0007] Optionally, the exergy electrode assembly comprises a front end electrode ring, a front end electrode wire, a rear end electrode ring and a rear end electrode wire, the front end electrode ring and the rear end electrode ring are arranged at the two ends of the hollow section of the guide wire push rod respectively.

[0008] Optionally, the front end electrode wire is connected with the front end electrode ring, and the front end electrode wire is arranged in the inner cavities of the hollow section of the guide wire push rod, the helical cutting section with gradually changed pitch, the variable diameter section and the round tube section of the guide wire push rod; the rear end electrode wire is connected with the rear end electrode ring, and the rear end electrode wire is arranged in the inner cavities of the helical cutting section with gradually changed pitch, the variable diameter section and the round tube section of the guide wire push rod.

[0009] Optionally, a polymer sheath is attached to the outer surfaces of the head end, the hollow section of the guide wire push rod, the helical cutting section with gradually changed pitch and the variable diameter section of the guide wire push rod.

[0010] Optionally, an insulating coating layer is further arranged between the outer surfaces of the hollow section of the guide wire push rod, the helical cutting section with gradually changed pitch and the variable diameter section of the guide wire push rod and the polymer sheath.

[0011] Compared with the prior art, the energy guide wire has the beneficial effects that: the energy guide wire adopts the mode of combining the electrode ring with the guide wire to establish the shock wave emission channel, the path of the shock wave emitted by the energy guide wire is taken as the guide wire as the axis, the shock wave passes through the energy transmission channel formed after the liquid injection to emit energy to the periphery of the electrode, the calcified lesions are loosened, the energy can cover a wider lesion area, the lesions are more uniformly acted on, the local damage to the blood vessel wall is reduced, the larger range of calcified lesions can be more effectively treated, the diameter of the calcified narrow channel is developed, the interventional treatment procedure is simplified or more favorable conditions are created for the subsequent treatment steps (such as balloon expansion, stent implantation, etc.), the treatment difficulty and complication risk are reduced, the intensity and direction of the shock wave can be better controlled during the operation process, the misinjury to the non-lesion area is avoided, the safety of the treatment is improved, the treatment process is more controllable, the success rate of the operation is significantly improved and the operation time is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure diagram of a medical energy guide wire;

[0013] Figure 2 It is a guide wire push rod structure diagram of a medical energy guide wire;

[0014] Figure 3 It is a whole cross-sectional view of a medical energy guide wire;

[0015] Figure 4It is a magnified view of the distal end of a medical energy guide wire;

[0016] Figure 5 It is a sectional view of the I place in the overall structure diagram of a medical energy guide wire;

[0017] Figure 6 It is a sectional view of the II place in the overall structure diagram of a medical energy guide wire;

[0018] In the figure: 1, developing elastic component, 2, energy release electrode assembly, 3, guide wire push rod, 4, insulating coating, 5, polymer sheath, 6, mark point, 7, guide wire push rod circular tube section, 8, guide wire push rod variable diameter section, 9, guide wire push rod pitch gradual change spiral cutting section, 10, guide wire push rod hollow section, 11, guide wire push rod energy release electrode assembly fixing position, 12, front electrode ring, 13, front electrode wire, 14, front electrode wire connecting point, 15, liquid inlet channel, 16, rear electrode ring, 17, rear electrode wire, 18, energy release electrode assembly guide wire interface. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical scheme of the present application, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0020] In order to avoid ambiguity, the orientation is defined as follows: the proximal end of the guide wire device is close to the operator, and the distal end is away from the operator. EMBODIMENT

[0021] Reference Figures 1-6 A medical energy guide wire, comprising a developing elastic component 1, an energy release electrode assembly 2, a guide wire push rod 3, an insulating coating 4 and a polymer sheath 5. EMBODIMENT

[0022] As Figure 1 shown, a distal end design of a medical energy guide wire, specifically, the guide wire head end is a developing elastic component 1 connected to an energy release electrode assembly 2, the energy release electrode assembly 2 is connected to a guide wire push rod 3, and the guide wire distal end is provided with an insulating coating 4 and a polymer sheath 5, so that the distal end of the guide wire forms a closed structure. Specifically, the insulating coating 4 can adopt an organic or inorganic insulating coating, for example, a PI coating can be adopted; the polymer sheath 5 can adopt a conventional polymer sheath for guide wire. EMBODIMENT

[0023] As Figure 2As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Embodiment

[0024] As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 3 and Figure 4 As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Embodiment

[0025] As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 1 and Figure 5 As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 1 The outermost layer is the polymer sheath 5, and the inner layer is the insulating coating 4, which is coated on the surface of the guide wire push rod pitch gradient spiral cutting section 9 to prevent the proximal end of the guide wire from conducting electricity during the guide wire operation. Figure 5 It can also be seen that the front electrode wire 13 and the rear electrode wire 17 are located in the liquid inlet channel 15 of the guide wire push rod 3. Embodiment

[0026] As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 1 and Figure 6 As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 1 The guide wire push rod hollow section 10 is water permeable; the gap between the outermost polymer sheath 5 and the guide wire push rod hollow section 10 and the internal cavity of the guide wire push rod hollow section 10 are the liquid inlet channels 15, the inner cavity of the guide wire push rod hollow section 10 is also the liquid inlet channel 15, and the front electrode wire 13 is connected to the front electrode 12 at the front electrode and front electrode wire connection point 14, then passes through the liquid inlet channel 15 until the proximal end. Embodiment

[0027] As shown in the drawings, it is the overall structure of the guide wire push rod 3, the guide wire push rod 3 is a hollow structure alloy pipe, the material is preferably stainless steel alloy pipe. The guide wire push rod 3 adopts sectional design to achieve the softness of the guide wire distal end and maintain its excellent supportability, specifically, from the proximal end, in turn, the guide wire push rod circular pipe section 7, the guide wire push rod variable diameter section 8, the guide wire push rod pitch gradient spiral cutting section 9 and the guide wire push rod hollow section 10. Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ​​​As shown, the utility model discloses a kind of medical energy guide wire: by being designed to connect energy-releasing electrode assembly 2 in the distal end of guide wire push rod 3, realize guide wire energy release, specific working principle is as follows: after injecting liquid by the liquid inlet channel 15 of guide wire push rod 3, the front electrode wire 13 and rear electrode wire 17 of guide wire are connected to energy generator, realize guide wire energy release, reach the effect of breaking down pathological plaque thrombus.By multi-hole handle, the front electrode wire 13 and rear electrode wire 17 are connected in socket after being stretched out from one interface, then be connected with energy control console, another interface connects push rod as liquid inlet channel. Embodiment

[0028] The utility model discloses a kind of medical energy guide wire, working procedure is: two channel ports are set in the proximal end port of guide wire push rod 3 when using, electrode wire port and liquid inlet port are respectively, liquid is injected into the liquid inlet channel 15 of guide wire push rod 3 from liquid inlet port, and according to inner cavity volume is filled;After front electrode wire 13 and rear electrode wire 17 are connected plug at electrode wire port, access energy generator, control the energy release effect of energy guide wire.

[0029] The person skilled in the art in this technical field should realize that the above embodiment is only used to illustrate the utility model, and is not used as the limitation to the utility model, as long as the variation, modification of the above described embodiment falls within the scope of the utility model within the essential spirit range of the utility model.

Claims

1. A medical energy guide wire, comprising a head end and a guide wire push rod (3) from far to near, characterized in that, The distal end of the guide wire push rod (3) is axially provided with an energy release electrode assembly (2), the guide wire push rod (3) is a cavity structure, the cavity structure forms a liquid inlet channel (15), the distal end of the guide wire push rod (3) is a guide wire push rod hollow section (10) with a hollow structure, and the proximal end of the guide wire push rod (3) is provided with a liquid inlet opening communicating with the liquid inlet channel (15).

2. The medical energy guide wire according to claim 1, wherein, The head end is provided with a developing elastic assembly (1).

3. The medical energy guide wire according to claim 1, wherein, The guide wire push rod (3) is a segmented structure, and sequentially from the distal end to the proximal end, the guide wire push rod (3) is a guide wire push rod hollow section (10), a guide wire push rod pitch gradient spiral cutting section (9), a guide wire push rod variable diameter section (8) and a guide wire push rod circular tube section (7).

4. The medical energy guide wire according to claim 3, wherein, The energy release electrode assembly (2) comprises a front end electrode ring (12), a front end electrode wire (13), a rear end electrode ring (16) and a rear end electrode wire (17), and the front end electrode ring (12) and the rear end electrode ring (16) are arranged at the two ends of the guide wire push rod hollow section (10) respectively.

5. The medical energy guide wire according to claim 4, wherein, The front end electrode wire (13) is connected with the front end electrode ring (12), and the front end electrode wire (13) is arranged in the inner cavities of the guide wire push rod hollow section (10), the guide wire push rod pitch gradient spiral cutting section (9), the guide wire push rod variable diameter section (8) and the guide wire push rod circular tube section (7); the rear end electrode wire (17) is connected with the rear end electrode ring (16), and the rear end electrode wire (17) is arranged in the inner cavities of the guide wire push rod pitch gradient spiral cutting section (9), the guide wire push rod variable diameter section (8) and the guide wire push rod circular tube section (7).

6. The medical energy guide wire according to claim 3, wherein, The head end, the guide wire push rod hollow section (10), the guide wire push rod pitch gradient spiral cutting section (9) and the guide wire push rod variable diameter section (8) are attached with a polymer sheath (5) on the outer surfaces.

7. The medical energy delivery wire of claim 6, wherein, An insulating coating (4) is further arranged between the outer surfaces of the guide wire push rod hollow section (10), the guide wire push rod pitch gradient spiral cutting section (9) and the guide wire push rod variable diameter section (8) and the polymer sheath (5).

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