CN112353674A - Shock wave treatment device - Google Patents

Abstract

The invention provides a shock wave treatment device, which comprises a shock wave gun and an air source; the shock wave gun comprises a handle and a gun barrel, wherein an air passage is arranged in the handle and is communicated with an air port; the gun barrel and the handle are fixedly connected or integrally arranged and are communicated with the air passage; the impact bomb is arranged in the gun tube; the rear end in the gun tube is provided with a hollow elastic cushion; the front end of the gun tube is axially provided with a massage head in a sliding way; the front end of the gun tube is provided with a massage head resetting device; the air source is connected with the air connecting port through an air path; at least part of the tube wall of the gun tube is provided with a silencing cavity, the tube wall of the gun tube is provided with a plurality of silencing holes, and the silencing cavity is communicated with the interior of the gun tube through the silencing holes. Thereby form microperforated panel resonance sound absorption structure, can realize fine wide band sound absorption effect, reach and fall the purpose of making an uproar.

Description

Shock wave treatment device

Technical Field

The invention relates to the field of medical instruments, in particular to a ballistic extracorporeal shock wave therapeutic apparatus.

Background

Extracorporeal shock wave therapy has become a new non-invasive treatment method in the orthopedic field in recent years. The external shock wave is a mechanical wave generated by an electronic hydraulic device, an electromagnetic device, a pneumatic emitter and the like, can play a role in solid and liquid substances and human tissues, can promote the proliferation of cells in fracture broken ends, bone defect areas and osteonecrosis areas, and has positive treatment effects on the refractory bone soft tissue diseases such as scapulohumeral periarthritis, fracture nonunion, femoral head ischemic necrosis and the like.

Chinese invention publication No. CN206777501U discloses an air pressure ballistic shockwave treatment handle which uses high pressure gas to push shock bullets to hit massage heads, thereby treating specific parts of patients. However, the noise generated by the shock wave treatment handle during working is very high, and further research and solution are needed to solve the problem.

Disclosure of Invention

The invention aims to provide a shock wave treatment device with an optimized design.

In order to achieve the above object, the present invention provides a shock wave treatment apparatus, comprising a shock wave gun and a gas source; the shock wave gun comprises a handle and a gun barrel, wherein an air passage is arranged in the handle and is communicated with an air port; the gun barrel and the handle are fixedly connected or integrally arranged and are communicated with the air passage; the impact bomb is arranged in the gun tube; the rear end in the gun tube is provided with a hollow elastic cushion; the front end of the gun tube is axially provided with a massage head in a sliding way; the front end of the gun tube is provided with a massage head resetting device; the air source is connected with the air connecting port through an air path; at least part of the tube wall of the gun tube is provided with a silencing cavity, the tube wall of the gun tube is provided with a plurality of silencing holes, and the silencing cavity is communicated with the interior of the gun tube through the silencing holes.

Optionally, a silencing barrel is coaxially arranged around at least part of the outer periphery of the tube wall of the barrel, and the tube wall of the barrel and the barrel wall of the silencing barrel form the silencing cavity.

Optionally, the muffling holes are uniformly distributed on the tube wall of the gun tube.

Optionally, the dampening holes are provided as circular perforations.

Optionally, a sleeve is coaxially arranged on the periphery of the silencing barrel, the rear end of the sleeve is fixedly connected with the front end of the handle, and an inner hole in the front end of the sleeve is fixedly connected with an outer cylindrical surface in the front end of the gun barrel.

Optionally, the ballistic projectile is clearance fit with the barrel.

Optionally, the inner wall of the barrel is smooth and the outer surface of the ballistic projectile is smooth.

The invention has the beneficial effects that: set up a plurality of tiny bloops on the pipe wall of amortization cavity and barrel through the pipe wall of the pipe wall at the barrel and the section of thick bamboo wall structure of amortization section of thick bamboo to form microperforated panel resonance sound absorbing structure, on the basis of utilizing current space and part, simple structure can realize fine wide band sound absorption effect, reaches the purpose of making an uproar of falling.

Drawings

FIG. 1 is a schematic view of the general structure of a shock wave treatment apparatus according to the present invention;

FIG. 2 is a schematic longitudinal cutting structure of a shockwave gun of the shockwave treatment device of the present invention;

FIG. 3 is a schematic view of a front end sealing arrangement of the shockwave gun of FIG. 2;

FIG. 4 is a schematic view of a portion of the barrel of FIG. 2 with a sound attenuating cavity;

fig. 5 is a schematic longitudinal cutting structure of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3 in combination, certain embodiments of the present invention include a ballistic extracorporeal shock wave treatment apparatus including a control cabinet 1, a touch screen 2 disposed on the control cabinet 1, an air tube and cable 3 connected to the control cabinet 1, and a shock wave gun 4. The shock wave gun 4 comprises a handle 5, one end of an air pipe in the air pipe and the cable 3 is hermetically connected with an air inlet end of an air passage 6 arranged on the handle 5, so that an air source in the control cabinet 1 can provide high-pressure air for the shock wave gun 4. The cable, which can be an air tube and the cable 3, is connected with a push switch 7 arranged at the rear end of the handle 5. The air outlet of the air passage 6 is fixedly connected with the rear end of the gun barrel 11.

The gun tube 11 is arranged horizontally, the gun tube 11 is a hollow steel tube penetrating in the front-back direction, and the end of the gun tube for mounting the massage head 12 is defined as the front end in the application. The barrel 11 has an impact ball 10 mounted in its bore, the impact ball 10 being in clearance fit with the barrel 11. The inner wall of the barrel 11 is smooth, the outer surface of the impact ball 10 is smooth, and the impact ball 10 can freely slide in the front-back direction in the barrel 11. The rear end column of the massage head 12 forms a slidable hole-shaft fit with the inner hole of the front end of the gun tube 11. The front end and the rear end of the gun barrel 11 are respectively provided with a first radial through round hole 14 and a second radial through round hole 9. The rear end of the gun barrel 11 is provided with a round hollow elastic cushion 8 at the connecting position with the air passage 6, the inner diameter of the elastic cushion 8 is smaller than the inner diameter of the gun barrel 11 and larger than the outer diameter of the impact bomb 10, the impact bomb 10 is buffered to impact the handle 5, the service life of the impact bomb 10 is prolonged, and the impact bomb 10 is prevented from rebounding forwards. The outer side of the barrel 11 is coaxially provided with a cylindrical sleeve 15, the rear end of the sleeve 15 is fixedly connected with the front end of the handle 5, and an inner hole at the front end of the sleeve 15 is fixedly connected with the outer cylindrical surface at the front end of the barrel 11. The front end of the massage head 12 is cylindrical and the outer cylindrical surface is connected with the inner hole at the front end of the gland 13 in a sliding way. The gland 13 is fixedly connected with the front end of the sleeve 15, a cylindrical flange is arranged in the middle of the massage head 12, and the flange is clamped in the space between the gland 13 and the sleeve 15 and can move forwards and backwards.

The first through round hole 14 and the second through round hole 9 are communicated through an inner diameter cavity of the cylindrical sleeve 15, so that resistance generated by compression of air of the barrel 11 during the forward and backward movement of the impact bomb 10 is avoided, and the impact bomb 10 can move forward and backward rapidly and freely.

O-shaped sealing rings I16, II 17 and III 18 are respectively arranged between the massage head 12 and the gland 13, between the massage head 12 and the sleeve 15 and between the gland 13 and the sleeve 15, so as to prevent the front end of the shock wave gun 4 from air leakage to cause discomfort of a patient, and simultaneously, the massage head is promoted to reset through the rebound of the O-shaped sealing rings. The gland 13 is fixedly connected with the front end of the sleeve 15 by a detachable thread connection, so that the massage head 12 and the gland can be replaced according to the area of the patient to be treated, and the treatment of different patients is facilitated.

Be provided with adjustable gas pressure's air pump in the switch board 1, the air pump exit linkage has controllable solenoid valve, a pulse frequency for controlling the air pump to supply out gas, controllable solenoid valve and trachea and cable 3's the trachea other end sealing connection, controllable solenoid valve is two three-way valves, when making the air pump supply out gas disconnection trachea and cable 3's trachea, the shutoff air pump supplies out gas, the trachea that makes trachea and cable 3 simultaneously is the same with the outside air, in order to emit barrel 11, the continuous pressure gas of collecting in the sleeve 15, provide gas space for next pulse pressure gas.

When a patient needs shock wave treatment, the external shock wave treatment instrument is started, air pump pressure, electromagnetic valve frequency and impact frequency are set through the touch screen 2, the diseased part of the patient is attached to the massage head 12, the switch 7 is pressed, pressure gas enters the gun barrel 11 through the air passage 6, the impact bomb 10 is impacted by the gas and moves forwards rapidly, the rear end of the massage head 12 is impacted, the massage head 12 impacts the diseased part of the patient forwards, meanwhile, the impact bomb 10 is impacted by the reverse impact force of the massage head 12 and rapidly returns to the rear end of the gun barrel 11 under the resilience action force of an O-shaped ring, the impact bomb impacts the elastic cushion 8 and stops, next pulse gas enters the gun barrel 11, at the moment, because the impact bomb 10 is blocked at the rear end of the gun barrel, the rear end of the massage head 12 is rapidly impacted by the diseased part of the patient, and repeated impact treatment on the diseased part of the patient, during the process of reciprocating the impact bomb 10 back and forth, the first round hole 14 and the second round hole 9 arranged on the barrel 11 are communicated, so that the impact bomb 10 cannot compress the air in the barrel 11 to generate large resistance. If the impact treatment area required by the patient is larger or smaller, the massage head 12 and the pressing cover 13 assembly can be replaced, and the massage head 12 with the larger or smaller diameter at the front end is used.

The impact bomb 10 generates very loud noise during the process of moving rapidly in the gun tube 11 and impacting the massage head 12, which causes great disturbance to the treatment process. In order to solve the noise problem, in one embodiment of the present invention, as shown in fig. 2 and fig. 4 and 5 in combination, a silencing pot 19 is circumferentially disposed around the wall of the middle body portion of the barrel 11, and the silencing pot 19 is disposed coaxially with the barrel 11. The sleeve 15 is provided coaxially with the sound-deadening barrel 19 on the outer periphery thereof. The front and rear end faces of the silencing cylinder 19 are tightly connected to the periphery of the tube wall of the gun tube 11, so that a closed silencing cavity 20 is formed between the tube wall of the gun tube 11 and the cylinder wall of the silencing cylinder 19. The barrel wall of the barrel 11 is provided with a plurality of silencing holes 21, and the silencing cavity 20 is communicated with the interior of the barrel 11 through the silencing holes 21. A plurality of muffling holes 21 are evenly distributed on the tube wall of the gun tube 11. The muffling holes 21 are in particular provided as tiny circular perforations. The micro-perforated plate resonance sound absorption structure is formed by constructing a sound absorption cavity 20 on the tube wall of the gun barrel 11 and the barrel wall of the sound absorption barrel 19 and arranging a plurality of micro sound absorption holes 21 on the tube wall of the gun barrel 11. According to the resonance sound absorption theory of the micro-perforated plate, sound energy is consumed by utilizing the friction of air inside the hole diameter of the sound absorption hole, and the sound energy can be attenuated inside the sound absorption cavity serving as a resonant cavity, so that the noise in the gun tube is reduced.

As to the resonance sound absorption theory of the micro-perforated plate, since it belongs to the theoretical knowledge known in physics, it is not described in detail here. How to design the resonance sound absorption structure of the micro-perforated plate in the shock wave gun can be set according to different noise reduction requirements, for example, the wall thickness of the gun barrel can be set to be 1mm, the perforation rate of a noise reduction hole in the gun barrel can be set to be 1% -3%, and the aperture of the noise reduction hole can be set to be less than 1 mm. The depth of the noise reduction cavity can be determined according to the resonance frequency of the noise reduction required.

The series of detailed descriptions set forth above are merely specific illustrations of possible embodiments of the present invention and are not intended to limit the scope of the invention. Therefore, equivalent embodiments or modifications without departing from the spirit of the invention should be included in the protection scope of the present invention.

Claims (7)

1. A shock wave treatment device comprises a shock wave gun and a gas source; the shock wave gun comprises a handle and a gun barrel, wherein an air passage is arranged in the handle and is communicated with an air port; the gun barrel and the handle are fixedly connected or integrally arranged and are communicated with the air passage; the impact bomb is arranged in the gun tube; the rear end in the gun tube is provided with a hollow elastic cushion; the front end of the gun tube is axially provided with a massage head in a sliding way; the front end of the gun tube is provided with a massage head resetting device; the air source is connected with the air connecting port through an air path;

the gun barrel is characterized in that at least part of the tube wall of the gun barrel is provided with a silencing cavity, the tube wall of the gun barrel is provided with a plurality of silencing holes, and the silencing cavity is communicated with the interior of the gun barrel through the silencing holes.

2. The shock wave treatment apparatus of claim 1, wherein a sound attenuating barrel is disposed around at least a portion of the outer circumference of the barrel wall coaxially with the barrel wall, the barrel wall and the barrel wall defining the sound attenuating cavity.

3. The shock wave treatment apparatus of claim 1 or 2, wherein a plurality of said muffling ports are evenly distributed on the wall of said barrel.

4. The shock wave therapy device of claim 1 or 2, wherein said dampening holes are provided as circular perforations.

5. The shock wave treatment apparatus of claim 1 or 2, wherein the noise damping cylinder is provided with a sleeve coaxially around the circumference thereof, the rear end of the sleeve is fixedly connected to the front end of the handle, and the inner hole of the front end of the sleeve is fixedly connected to the outer cylindrical surface of the front end of the barrel.

6. The shock wave treatment apparatus of claim 1 or 2, wherein the ballistic projectile is clearance fit with the barrel.

7. The shock wave treatment apparatus of claim 1 or 2, wherein the inner wall of the barrel is smooth and the outer surface of the ballistic projectile is smooth.

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