CN107811832A - Shock wave treatment device - Google Patents

Abstract

The invention discloses a shock wave therapy device. The shock wave therapy device comprises: a body; a treatment head, the treatment head is arranged on the body; It is movably arranged on the body between disengagement positions away from the treatment head; and an electromagnet is arranged on at least one of the body and the treatment head, and the electromagnet is connected to the treatment head. The impact member cooperates so as to drive the impact member to move between the impact position and the disengagement position. The shock wave therapy device according to the embodiment of the present invention has the advantages of simple structure, small volume, good therapeutic effect and the like.

Description

shock wave therapy device

technical field

The present invention relates to the field of medical equipment, in particular, to a shock wave therapy device.

Background technique

The shock wave therapy device in the related art has a pneumatic ballistic structure, and the pneumatic ballistic structure is controlled by a compressor and an air valve, resulting in a complex structure and a relatively large volume of the shock wave therapy device in the related art. Moreover, there is leakage and pressure loss in the compressed air, which leads to unstable air pressure, which in turn leads to unstable impact energy of the impact head, and ultimately affects the therapeutic effect on patients.

Contents of the invention

The object of the present invention is to overcome the problems existing in the prior art and provide a shock wave therapy device, which utilizes an electromagnet to drive an impact member to impact the treatment head.

In order to achieve the above object, the present invention provides a shock wave therapy device, the shock wave therapy device includes: a body; a treatment head, the treatment head is arranged on the body; an impact member, the impact member impacts the treatment head and an electromagnet is arranged on at least one of the main body and the treatment head, the The electromagnet cooperates with the impact member to drive the impact member to move between the impact position and the disengagement position.

The shock wave therapy device according to the embodiment of the present invention has the advantages of simple structure, small volume and good therapeutic effect.

Preferably, there is a sliding cavity inside the body, and the impact member is movably arranged in the sliding cavity between the impact position and the disengagement position.

Preferably, the body includes: a main body; and a catheter, the catheter is arranged on the main body, the catheter has the sliding cavity inside, wherein the first end of the catheter is adjacent to the treatment head, the The second end of the catheter is remote from the treatment tip.

Preferably, the electromagnet is adjacent to the first end of the catheter. Preferably, the electromagnet includes an iron core and a coil wound on the iron core, and the iron core is sheathed on the first end of the catheter. On one end, more preferably, a part of the treatment head is located in the sliding cavity.

Preferably, the electromagnet includes an iron core and a coil wound on the iron core, the iron core is a part of the treatment head, preferably, the part of the treatment head is located in the sliding cavity , more preferably, the coil is wound on a portion of the catheter opposite to the portion of the treatment head.

Preferably, the electromagnet is adjacent to the second end of the catheter, preferably, the electromagnet includes an iron core and a coil wound on the iron core, the iron core is in the length direction of the catheter Opposite to the second end of the conduit, more preferably, a buffer pad is provided on an end surface of the iron core adjacent to the second end of the conduit.

Preferably, said electromagnet comprises a front electromagnet adjacent to a first end of said catheter and a rear electromagnet adjacent to a second end of said catheter, preferably said The front electromagnet includes a front iron core and a front coil wound on the front iron core, more preferably, the front iron core is sheathed on the first end of the catheter, or a part of the treatment head Located in the sliding cavity, the part of the treatment head is the front iron core, and the front coil is wound on the part of the catheter opposite to the part of the treatment head. Preferably, the The rear electromagnet includes a rear iron core and a rear coil wound on the rear iron core, the rear iron core is opposite to the second end of the catheter in the length direction of the catheter, more preferably, the A buffer pad is provided on the end surface of the iron core adjacent to the second end of the guide tube.

Preferably, the body further includes a sleeve, the sleeve is sleeved on the catheter, the sleeve is provided on the main body, preferably, the second end of the sleeve is threaded with the connected to the subject.

Preferably, the body further comprises: a fitting detachably attached to the first end of the sleeve; and an end cap detachably attached to the fitting, the A portion of the treatment tip is clamped between the end cap and the adapter.

Preferably, the impact member is a magnetic member or the impact member is made of ferromagnetic material.

Description of drawings

Fig. 1 is a schematic structural view of a shock wave therapy device according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a shock wave therapy device according to another embodiment of the present invention;

Fig. 3 is a schematic structural view of a shock wave therapy device according to yet another embodiment of the present invention.

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

A shock wave therapy device 1 according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1-3 , a shock wave therapy device 1 according to an embodiment of the present invention includes a body 10 , a treatment head 20 , an impact member 30 and an electromagnet 40 .

The treatment head 20 is arranged on the main body 10 . The impact member 30 is movably arranged on the body 10 between an impact position for impacting the treatment head 20 and a disengagement position for breaking away from the treatment head 20 . The electromagnet 40 is arranged on at least one of the body 10 and the treatment head 20, and the electromagnet 40 cooperates with the impact member 30 to drive the impact member 30 to move between the impact position and the disengagement position.

When using the shock wave therapy device 1 according to the embodiment of the present invention, the electromagnet 40 can be energized so that the electromagnet 40 can generate a magnetic field, so that the electromagnet 40 can exert a magnetic force on the impact member 30 . When the magnetic force is toward (pointing to) the impacting position (the treatment head 20 ), the magnetic force can drive the impact member 30 to move from the disengagement position to the impact position so that the impact member 30 impacts the treatment head 20 .

Then, the direction of the magnetic force can be changed by changing the direction of the electric current passed into the electromagnet 40, that is, the magnetic force can be made toward (pointing to) the disengagement position by changing the direction of the electric current passed into the electromagnet 40, that is, the magnetic force away from the treatment head 20, so that the magnetic force can drive the impact member 30 to move from the impact position to the disengagement position so as to prepare for the impact member 30 to impact the treatment head 20 again.

Subsequently, the direction of the current supplied to the electromagnet 40 can be changed again in order to change the direction of the magnetic force again, so that the striking element 30 can strike the therapy head 20 again. Wherein, the time interval t for changing the direction of the current flowing into the electromagnet 40 can be calculated according to the impact frequency of the impact member 30, that is, after the time interval t passes, the direction of the current flowing into the electromagnet 40 is changed so as to change the direction of the current flowing into the electromagnet 40. The direction of the magnetic force can make the impact member 30 impact the treatment head 20 at a preset frequency, so as to form the shock wave required for patient treatment.

The shock wave therapy device 1 according to the embodiment of the present invention is provided with an electromagnet 40 that applies a magnetic force to the shock member 30, so that the shock member 30 can strike the treatment head 20 at a preset frequency, so as to form shock waves required for patient treatment.

Due to the simple structure and small size of the electromagnet 40, compared with the existing shock wave therapy device equipped with a compressor and an air valve, the shock wave therapy device 1 according to the embodiment of the present invention has the advantages of simple structure and small volume.

And, when other conditions (such as the number of turns of the coil of the electromagnet 40) are constant, the magnitude of the magnetic force that the electromagnet 40 exerts on the impact member 30 depends on the magnitude of the current that passes into the electromagnet 40, because it can be easily The magnitude of the electric current passing through the electromagnet 40 is kept at a preset value accurately and accurately, so the impact energy of the impact member 30 can be easily and accurately maintained at a preset value, so as to stably provide a preset impact to the patient energy, so that the therapeutic effect of the shock wave therapy device 1 can be improved.

In addition, the impact frequency of the impact member 30 depends on the frequency of the current passing through the electromagnet 40. Since the frequency of the current passing through the electromagnet 40 can be easily and accurately maintained at a preset value, it can be easily and accurately The impact frequency of the impact member 30 is kept at a preset value so as to stably provide the preset impact frequency to the patient, thereby improving the therapeutic effect of the shock wave therapy device 1 .

Therefore, the shock wave therapy device 1 according to the embodiment of the present invention has the advantages of simple structure, small volume, and good therapeutic effect.

As shown in FIGS. 1-3 , in some embodiments of the present invention, a shock wave therapy device 1 may include a body 10 , a treatment head 20 , an impact member 30 and an electromagnet 40 . Wherein, the impact member 30 may be a magnetic member or the impact member 30 may be made of ferromagnetic material. For example, the impact member 30 may be a magnet block or an iron block. The treatment head 20 can be fixedly arranged on the body 10 , and the treatment head 20 can also be movably arranged on the body 10 .

Preferably, there may be a sliding cavity 110 inside the body 10, and the impact member 30 may be movably disposed in the sliding cavity 110 between the impact position and the disengagement position. In this way, the impact member 30 can be moved between the impact position and the disengagement position more stably along the preset track.

As shown in FIGS. 1-3 , in one embodiment of the present invention, the body 10 may include a main body 120 and a catheter 130 . The conduit 130 may be provided on the main body 120, and the conduit 130 may have a sliding lumen 110 therein. Wherein, the first end 131 of the catheter 130 may be adjacent to the treatment head 20 , and the second end 132 of the catheter 130 may be far away from the treatment head 20 . In other words, the impact member 30 may be provided in the sliding cavity 110 . Thus, the structure of the shock wave therapy device 1 can be made more reasonable.

Preferably, as shown in FIGS. 1-3 , the body 10 may further include a sleeve 150 , and the sleeve 150 may be sleeved on the catheter 130 . A sleeve 150 may be provided on the main body 120 . Thus, the structure of the shock wave therapy device 1 can be made more reasonable.

By setting the casing 150 sleeved outside the conduit 130, the casing 150 with low processing precision can be used to realize the installation function, and the conduit 130 with high processing precision can be used to realize the function of guiding the impact member 30, thereby making the shock wave The structure of the treatment device 1 is more reasonable.

The second end 152 of the sleeve 150 may be threadedly connected to the main body 120 . As shown in FIGS. 1-3 , specifically, the main body 120 may have an accommodating cavity 121, and the front end of the accommodating cavity 121 may be opened, wherein the front and rear directions are shown by arrow A in FIG. Extends in a front-to-back direction. An internal thread may be formed on the wall of the housing cavity 121, and an external thread may be formed on the outer peripheral surface of the second end 152 of the sleeve 150, and the external thread cooperates with the internal thread so as to connect the second end 152 of the sleeve 150 Installed in the receiving chamber 121.

As shown in FIGS. 1-3 , the wall surface of the accommodating chamber 121 may be configured with a first stepped portion 122, the second end portion 152 of the sleeve 150 may be configured with a second stepped portion 153, and the first stepped portion 122 may be located at the second end portion 153. Behind the second stepped portion 153, the first stepped portion 122 can be separated from the second stepped portion 153 by a predetermined distance, thereby preventing excessive backward movement of the sleeve 150 and excessive compression of the coil by the sleeve 150 when the sleeve 150 is installed. 420 and fixed seat 190.

Preferably, as shown in FIGS. 1-3 , the second end 132 (rear end) of the catheter 130 can be flush with the second end 152 (rear end) of the cannula 150 , so that the shock wave therapy device 1 structure is more reasonable. A flexible sheath 154 can be provided on the part of the cannula 150 outside the receiving chamber 121 , and when operating the shock wave therapy device 1 , the operator can hold the main body 120 with one hand and the flexible sheath 154 with the other hand.

As shown in FIGS. 1-3 , in some examples of the present invention, the body 10 may further include a joint 160 and an end cap 170 .

The joint 160 may be detachably provided on the first end 151 of the sleeve 150 . Preferably, the joint 160 can be connected to the first end 151 of the sleeve 150 through threads. For example, an internal thread can be formed on the inner peripheral surface of the first end 151 of the sleeve 150, and an external thread can be formed on the peripheral surface of the joint 160, and the external thread cooperates with the internal thread so that the joint 160 can be connected with the sleeve pipe 150. The first end 151 is connected.

The end cap 170 can be detachably disposed on the joint 160 , and a part 220 of the treatment head 20 can be clamped between the end cap 170 and the joint 160 . Therefore, the treatment head 20 can be disassembled by detaching the end cap 170 from the joint 160 , so that other treatment heads 20 can be conveniently and easily replaced.

As shown in FIGS. 1-3 , in a specific example of the present invention, a third stepped portion 230 and a fourth stepped portion 240 may be configured on the treatment head 20, and the third stepped portion 230 may be located at the top of the fourth stepped portion 240. ahead. A fifth step portion 171 may be configured on the end cover 170 , and the fifth step portion 171 may be located in front of the third step portion 230 . A sixth step portion 161 may be configured on the joint 160 , and the sixth step portion 161 may be located behind the fourth step portion 240 .

Wherein, the part of the treatment head 20 between the third step portion 230 and the fourth step portion 240 may be a part 220 of the treatment head 20 . The fifth stepped portion 171 can cooperate with the third stepped portion 230, and the sixth stepped portion 161 can cooperate with the fourth stepped portion 240, so that a part 220 of the treatment head 20 can be clamped between the fifth stepped portion 171 of the end cap 170 and the joint. 160 between the sixth step portion 161 .

As shown in FIGS. 1-3 , a first elastic sealing ring 510 may be provided between the fifth stepped portion 171 and the third stepped portion 230, and a second elastic sealing ring 510 may be provided between the sixth stepped portion 161 and the fourth stepped portion 240. Elastic sealing ring 520. Therefore, when the impact member 30 impacts (impacts) the treatment head 20, the treatment head 20 can compress the first elastic sealing ring 510 so that the treatment head 20 can move, that is, the treatment head 20 can generate a displacement.

Preferably, the end cap 170 may have a cavity 172 therein, and at least a portion of the treatment head 20 may be located in the cavity 172 . The front end of the treatment head 20 may be flush with the front end of the end cap 170 . In addition, the front end of the treatment head 20 can be located in front of the front end of the end cap 170 , that is, the front end of the treatment head 20 can protrude forward from the cavity 172 .

Internal thread can be formed on the wall surface of cavity 172, and external thread can be formed on the peripheral surface of joint 160, and this external thread cooperates with this internal thread so that end cover 170 is connected with joint 160, and a part of joint 160 (for example front end portion ) may be located within cavity 172.

As shown in FIGS. 1-3 , the first end 131 (front end) of the catheter 130 can protrude forward from the first end 151 (front end) of the sleeve 150 . Therefore, it is easier and more convenient to make the part 210 of the treatment head 20 protrude into the sliding cavity 110 , so that the impact member 30 can impact the treatment head 20 better.

Preferably, the first end 131 of the conduit 130 can extend into the joint 160 . Thus, the first end 131 of the conduit 130 can be exposed by detaching the joint 160 from the first end 151 of the sleeve 150 . As a result, the guide tube 130 and the impact element 30 can be cleaned (rinsed) conveniently and easily.

In a first example of the present invention, as shown in FIG. 1, the electromagnet 40 may include a front electromagnet 40a and a rear electromagnet 40b, the front electromagnet 40a may be adjacent to the first end 131 of the catheter 130, and the rear electromagnet 40b The second end 132 of the conduit 130 may be adjacent. When the shock wave therapy device 1 is used, the direction of the magnetic force exerted by the front electromagnet 40a on the impact member 30 and the direction of the magnetic force exerted on the impact member 30 by the rear electromagnet 40b may be the same. By setting the front electromagnet 40a and the rear electromagnet 40b, the impact member 30 can be better driven to move between the impact position and the disengagement position.

The front electromagnet 40a may include a front iron core 410a and a front coil 420a wound on the front iron core 410a. In one example, the front iron core 410a can be sleeved on the first end portion 131 of the conduit 130 . Therefore, the electromagnet 40a can attract and repel the impact member 30 more effectively, so that the impact member 30 can be better driven to move between the impact position and the disengagement position.

As shown in FIG. 1 , in another example, a part 210 of the treatment head 20 can be located in the sliding cavity 110, and the part 210 of the treatment head 20 can be the front core 410a. Front coil 420a may be wound on a portion of catheter 130 opposite portion 210 of treatment tip 20 . Thus, the structure of the shock wave therapy device 1 can be made simpler and more reasonable.

The rear electromagnet 40b may include a rear iron core 410b and a rear coil 420b wound on the rear iron core 410b, and the rear iron core 410b may be opposite to the second end portion 132 of the catheter 130 in the length direction of the catheter 130 . Specifically, the rear iron core 410b may be opposed to the rear end portion of the duct 130 in the front-rear direction.

As shown in FIG. 1 , a buffer pad 140 may be provided on an end surface of the rear iron core 410 b adjacent to the second end 132 of the conduit 130 . Therefore, when the impact member 30 moves from the impact position to the disengagement position, it can hit the buffer pad 140 , thereby preventing the impact member 30 from damaging the rear iron core 410 b.

As shown in FIG. 1 , both the first end (front end) and the second end (rear end) of the sliding cavity 110 may be open. Preferably, the buffer pad 140 can cover the second end of the sliding cavity 110 .

In a second example of the invention, as shown in FIG. 2 , the electromagnet 40 may be adjacent to the second end 132 of the catheter 130 . Preferably, the electromagnet 40 may include an iron core 410 and a coil 420 wound on the iron core 410 , and the iron core 410 may be opposite to the second end 132 of the catheter 130 in the length direction of the catheter 130 . Therefore, the electromagnet 40 can attract and repel the impact member 30 more effectively, so that the impact member 30 can be better driven to move between the impact position and the disengagement position.

As shown in FIG. 2 , a buffer pad 140 may be provided on an end surface of the iron core 410 adjacent to the second end portion 132 of the conduit 130 . Therefore, when the impact member 30 moves from the impact position to the disengagement position, it can hit the buffer pad 140 , thereby preventing the impact member 30 from damaging the iron core 410 .

As shown in FIG. 3 , in the third example of the present invention, the electromagnet 40 may include an iron core 410 and a coil 420 wound on the iron core 410 , and the iron core 410 may be a part 210 of the treatment head 20 . Thus, the structure of the shock wave therapy device 1 can be made simpler and more reasonable.

Preferably, as shown in FIG. 3 , a part 210 of the treatment head 20 may be located in the sliding cavity 110 , and the coil 420 may be wound on a portion of the catheter 130 opposite to the part 210 of the treatment head 20 . Therefore, the electromagnet 40 can attract and repel the impact member 30 more effectively, so that the impact member 30 can be better driven to move between the impact position and the disengagement position.

In a fourth example of the present invention, the electromagnet 40 may be adjacent to the first end 131 of the catheter 130 . Preferably, the electromagnet 40 may include an iron core 410 and a coil 420 wound on the iron core 410 , and the iron core 410 may be sleeved on the first end 131 of the catheter 130 . Therefore, the electromagnet 40 can attract and repel the impact member 30 more effectively, so that the impact member 30 can be better driven to move between the impact position and the disengagement position.

More preferably, a portion 210 of the treatment head 20 is located within the sliding cavity 110 . As a result, the striking element 30 can better strike the therapy head 20 .

As shown in FIG. 3 , the shock wave therapy device 1 may further include a fixing seat 190 , and the fixing seat 190 may be opposite to the second end 132 of the catheter 130 in the length direction of the catheter 130 . Wherein, a buffer pad 140 may be provided on an end surface of the fixing seat 190 adjacent to the second end portion 132 of the conduit 130 . In this way, not only the fixing seat 190 can be used to cover the conduit 130 to prevent the impact member 30 from detaching from the conduit 130 , but also the impact member 30 can be prevented from being damaged by the fixing seat 190 by being placed on the buffer pad 140 .

Preferably, as shown in FIGS. 1-3 , the shock wave therapy device 1 may further include a rear cover 180 , and the rear end of the accommodation chamber 121 may be open or an opening may be provided on the rear wall of the accommodation chamber 121 . Wherein, the rear cover 180 may be disposed on the main body 120 , and the rear cover 180 may cover the rear end of the accommodating cavity 121 or the opening. Therefore, the electromagnet 40 (rear electromagnet 40 b ) and the fixing seat 190 can be installed in the accommodating cavity 121 more conveniently and easily, thereby making the structure of the shock wave therapy device 1 more reasonable.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A shock wave therapy device, characterized in that, comprising: Ontology; a treatment head, the treatment head is arranged on the body; an impact member movably disposed on the body between an impact position for impacting the treatment head and a disengagement position for disengaging from the treatment head; and An electromagnet, the electromagnet is arranged on at least one of the body and the treatment head, and the electromagnet cooperates with the impact member so as to drive the impact member between the impact position and the disengagement position to move between. 2. The shock wave therapy device according to claim 1, wherein a sliding cavity is provided in the body, and the impact member is movably arranged in the sliding cavity between the impact position and the disengagement position Inside. 3. The shock wave therapy device according to claim 2, wherein the body comprises: subject; and a catheter disposed on the main body, the catheter having the slide lumen therein, wherein the first end of the catheter is adjacent to the treatment head, and the second end of the catheter is away from the treatment head . 4. The shock wave therapy device of claim 3, wherein the electromagnet is adjacent to the first end of the catheter, preferably the electromagnet comprises an iron core and a coil wound around the iron core. The coil, the iron core is sheathed on the first end of the catheter, more preferably, a part of the treatment head is located in the sliding cavity. 5. The shock wave therapy device according to claim 3, wherein the electromagnet comprises an iron core and a coil wound on the iron core, the iron core is a part of the treatment head, preferably, The part of the treatment head is located in the sliding cavity, and more preferably, the coil is wound on a part of the catheter opposite to the part of the treatment head. 6. The shock wave therapy device of claim 3, wherein the electromagnet is adjacent to the second end of the catheter, preferably the electromagnet comprises an iron core and a coil wound around the iron core. Coil, the iron core is opposite to the second end of the conduit in the length direction of the conduit, more preferably, a buffer pad is provided on the end surface of the iron core adjacent to the second end of the conduit . 7. The shock wave therapy device of claim 3, wherein the electromagnet comprises a front electromagnet adjacent to the first end of the catheter and a rear electromagnet adjacent to the second end of the conduit, Preferably, the front electromagnet includes a front iron core and a front coil wound on the front iron core, more preferably, the front iron core is sheathed on the first end of the catheter, or the A part of the treatment head is located in the sliding cavity, the part of the treatment head is the front iron core, and the front coil is wound on a part of the catheter opposite to the part of the treatment head, Preferably, the rear electromagnet includes a rear iron core and a rear coil wound on the rear iron core, the rear iron core is opposite to the second end of the catheter in the length direction of the catheter, more Preferably, a buffer pad is provided on the end surface of the rear iron core adjacent to the second end of the guide tube. 8. The shock wave therapy device according to claim 3, wherein the body further comprises a sleeve, the sleeve is sleeved on the catheter, and the sleeve is disposed on the main body, preferably , the second end of the sleeve is connected to the main body through threads. 9. The shock wave therapy device according to claim 8, wherein the body further comprises: a fitting removably disposed on the first end of the sleeve; and An end cap, the end cap is detachably arranged on the joint, and a part of the treatment head is clamped between the end cap and the joint. 10. The shock wave therapy device according to any one of claims 1-9, characterized in that, the shocking part is a magnetic part or the shocking part is made of ferromagnetic material.