CN201179091Y - Energy converter applied in ultrasonic crush stone instrument in vivo - Google Patents
Energy converter applied in ultrasonic crush stone instrument in vivo Download PDFInfo
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- CN201179091Y CN201179091Y CNU200820004344XU CN200820004344U CN201179091Y CN 201179091 Y CN201179091 Y CN 201179091Y CN U200820004344X U CNU200820004344X U CN U200820004344XU CN 200820004344 U CN200820004344 U CN 200820004344U CN 201179091 Y CN201179091 Y CN 201179091Y
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- 238000001727 in vivo Methods 0.000 title claims description 16
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 21
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- 229910052689 Holmium Inorganic materials 0.000 description 4
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
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Abstract
The utility model relates to an energy converter applied for an internal ultrasonic stone crushing instrument, which comprises a stainless steel needle pipe, a connecting head, an elastic pipe, an amplitude rod, a piezoelectric ceramic piece, a balance weight, a pressing bolt, an outer shell, an O-shaped sealing ring of an air pipe joint, a stone sucking conduit, an insulating sleeve pipe, an electrode piece, a pyramidal cap, a conducting wire, a conducting wire interface cap and a conducting wire interface seat, wherein, the conducting wire interface seat arranged at the upper part of the outer shell and the conducting wire interface cap arranged above the conducting wire interface seat are arranged at the position which deviates an axial line, a commutator is also arranged above the pressing bolt in the outer shell, the converter has a four-way structure, the front end of an axial central through hole of the converter is communicated with the stone sucking conduit, and the rear end is fixedly connected to the top end of the outer shell, the converter corresponding to the conducting wire interface seat and the conducting wire interface cap arranged above the conducting wire interface seat is provided with peripheral through holes at the position which deviates the axial line along an axial direction, the upper end of the converter is communicated with the conducting wire interface seat, and the converter deviates the peripheral through holes and is provided with two axial through holes along the axial direction.
Description
Technical Field
The utility model relates to an ultrasonic transducer's field especially relates to a be applied to transducer among internal supersound rubble appearance.
Background
For general kidney stones, ureteral stones and bladder stones, the method of crushing stones by using external shock wave or the method of crushing stones by using medical holmium laser, medical neodymium laser, air pressure trajectory crushing stones and the like can be adopted. In vitro shock wave lithotripsy and ultrasonic lithotripsy are only effective on about 15% of fragile small stones. The treatment difficulty of about 80% of stone patients can be solved by medical holmium laser, medical neodymium laser and air pressure ballistic lithotripsy. The treatment method is carried out by means of a cystoscope and a ureter soft lens, a treatment end of a laser fiber or equipment reaches a calculus part through a urethra, and then calculus is smashed by laser energy or air pressure ballistic calculus smashing energy. The methods do not need to be operated, have no damage or little damage to the human body, and are the treatment methods which are accepted by most patients with stones such as kidney stones, ureteral stones and vesical stones. The defects are that the treatment method often has no effect on partial kidney stones, particularly stubborn and hard kidney inferior marigold stones and bladder stones, and the treatment method can only break stones and cannot clear the stones on the spot, thereby leaving the hidden troubles of stone relapse and urinary tract blockage caused by broken stones. Ultrasonic in vivo lithotripsy is a better minimally invasive calculus treatment technology, generally adopts a hollow lithotripsy probe and is matched with vacuum negative pressure suction equipment, when the lithotripsy is carried out by ultrasonic waves, the lithotripsy is sucked out of a body by utilizing negative pressure, and the purpose of lithotripsy and calculus removal treatment is achieved. At present, a few companies are used for producing the ultrasonic lithotripsy equipment, mainly including Germany R-Wolf company and Switzerland EMS company, and the lithotripsy equipment of the two companies has defects.
Wherein Wolf's device is generally configured as shown in fig. 1, the intracorporeal ultrasonic lithotripsy transducer comprising: the device comprises a stainless steel needle tube 1, a connector 2, a connector O-shaped sealing ring 3, an elastic tube 4, an amplitude transformer 5, an amplitude transformer O-shaped sealing ring 6, a piezoelectric ceramic piece 7, a balance weight 9, a compression bolt 10, a shell 11, a sleeve O-shaped sealing ring 12, a trachea joint O-shaped sealing ring 16, a trachea joint 17, a compression screw O-shaped sealing ring 19, a stone suction catheter 20, an insulating sleeve 21, an electrode plate 22, a cone cap 23, a lead 24, a lead interface cap 25 and a lead interface seat 26. Because the shell is only simply pressed and connected with the balance weight, the amplitude transformer and the like through the O-shaped ring, and the amplitude transformer is also a copper alloy material with general performance, the mechanical quality factor is low, the amplitude magnification is small, and the ultrasonic lithotripsy capability is obviously weakened; and an interface which is not provided with a gas pressure trajectory and stone breaking equipment such as holmium laser, neodymium laser and the like is added, so that the stone breaking device is useless when encountering stones with large volume and hard texture.
Although the EMS device is improved for several generations, the combination of ultrasound and pneumatic trajectory is realized, the operation in the operation is not very convenient, the intensity of negative pressure can only be adjusted on the negative pressure suction device, the operator can not control the suction force at will, and when the probe accidentally touches soft tissues, the pressure can not be released in time, which can not only cause the blockage of a needle tube and the heating of a transducer, but also easily cause the injury to the body tissues.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the ultrasonic lithotripter solves the problems that the existing ultrasonic lithotripter in vivo has poor lithotripter lithotriptic capability, is not easy to operate for the suction and the smashing of stones with different sizes, and the needle tube is blocked due to the suction of soft tissues, thereby providing the transducer applied to the ultrasonic lithotripter in vivo.
The utility model provides a pair of be applied to transducer among internal supersound rubble appearance, include: the device comprises a stainless steel needle tube 1, a connector 2, a connector O-shaped sealing ring 3, an elastic tube 4, an amplitude transformer 5, an amplitude transformer O-shaped sealing ring 6, a piezoelectric ceramic piece 7, a balance weight 9, a compression bolt 10, a shell 11, an air pipe connector O-shaped sealing ring 16, an air pipe connector 17, a compression bolt O-shaped sealing ring 19, a stone suction catheter 20, an insulating sleeve 21, an electrode plate 22, a cone cap 23, a lead 24, a lead interface cap 25 and a lead interface seat 26; the connector is characterized in that the wire interface seat 26 on the upper part of the shell 11 and the wire interface cap 25 on the wire interface seat are arranged at the position deviated from the axis; the shell 11 is also provided with an adapter 18 above the hold-down bolt 10, the adapter 18 is of a four-way structure, the front end of an axial central through hole of the adapter 18 is communicated with a stone suction catheter 20, and the rear end of the central through hole is fixedly connected to the top end of the shell 11; the converter 18 is provided with a peripheral through hole along the axial direction at a position deviating from the axial line corresponding to the wire interface seat 26 and the wire interface cap 25 thereon, and the upper end of the peripheral through hole is communicated with the wire interface seat 26 and is used for accommodating wires; the converter 18 deviates from the peripheral through hole and is provided with two radial through holes along the radial direction, the two radial through holes are respectively used for communicating the pressure regulating exhaust valve 13 with the air pipe joint 17, and the air pipe joint O-shaped sealing ring 16 is pressed at the joint of the air pipe joint 17 and the converter 18.
As an improvement of the utility model, the rear end of the central through hole can be connected with a corresponding air pressure trajectory or laser stone breaking device; or a rear cover 15 is screw-coupled and a gasket 14 is pressed between the rear end and the rear cover.
As a further improvement of the present invention, the pressure regulating exhaust valve 13 includes a needle valve body, a needle valve core, an exhaust valve rod, an exhaust valve cap, a compression spring and an O-shaped rubber ring which are coaxially arranged; the needle valve body is in a circular tube shape, and the outer surface of the needle valve body is provided with threads for connecting with a three-way pipe on an external gas pipeline; the lower end of the needle valve body is sleeved with an O-shaped rubber ring, and the O-shaped rubber ring is tightly pressed to ensure the sealing between the needle valve body and the three-way pipe; the valve core of the needle valve is approximately T-shaped and is sleeved in the valve body of the needle valve from top to bottom; the outer surface of the upper part of the needle valve core is in threaded connection with the inner surface of the upper part of the needle valve body, a gap is reserved between the outer surface of the lower part of the needle valve core and the inner surface of the lower part of the needle valve body, and the matching part of the needle valve core and the lower port of the needle valve body is a conical surface; the needle valve core is hollow, and the inner surface of the lower part of the needle valve core is provided with a flange which is used for sliding fit with the exhaust valve rod; the lower part of the valve core of the needle valve is also provided with two radial holes which are respectively positioned at the upper side and the lower side of the flange; the exhaust valve rod is in an inverted T shape and is sleeved in the needle valve core from bottom to top, a compression spring is sleeved at a gap between the needle valve core and the upper part of the exhaust valve rod, and the lower end of the compression spring is abutted against a stepped hole formed by a flange; an O-shaped rubber ring is arranged between a flange at the lower end of the exhaust valve rod and a limiting end face contacted with the lower end of the needle valve core; the exhaust valve cap is connected to the top end of the exhaust valve rod through threads, a circular groove used for sleeving a compression spring is formed in the center of the lower end face of the exhaust valve cap, and a groove and the circular groove are formed in the lower end face of the exhaust valve cap in the radial direction and communicated.
As a further improvement of the utility model, the longitudinal section of the upper end of the needle valve core is in an H shape, and the upper end surface of the needle valve core is used as the step limit of the exhaust valve cap. The radial recess of lower terminal surface of exhaust valve cap is the cross.
As another improvement of the utility model, the diameter of the counter weight 9 is 1 ~ 3mm greater than the diameter of the piezoceramics piece. The length of the stainless steel needle tube 1 is 380-440 mm.
As another improvement of the present invention, the piezoelectric ceramic pieces 7 may be two or more pieces, and an electrode plate 22 is sandwiched between every two adjacent piezoelectric ceramic pieces.
As another improvement of the utility model, a sleeve 8 is further sleeved between the shell 11 and the counterweight 9, the sleeve is made of polytetrafluoroethylene resin, and two ends of the sleeve are connected with O-shaped sealing rings.
As another improvement of the present invention, the shape of the amplitude transformer is an exponential curve, and y is a × ebx，0≤x≤20。
The utility model has the advantages that: the utility model provides a pair of internal supersound rubble transducer owing to adopted high performance's piezoceramics material, reasonable assembly process, the effectual impedance that has reduced the transducer makes calorific capacity of transducer show and reduces, and the inside stone pipe that inhales that adopts the metal can be more take away the heat that piezoceramics produced, guarantees the uniformity of transducer frequency impedance isoparametric in the use. Wherein,
the amplitude transformer of the utility model adopts titanium alloy material, which is far higher than other metal materials such as copper alloy and the like to the conduction of ultrasound and the amplification effect of amplitude. The utility model provides a become width of cloth pole is the width of cloth pole of the index curve appearance that uses accurate digit control machine tool to process, and the width of cloth pole of this kind of appearance has existing fine anti mechanical fatigue performance, can effectually improve the magnification of amplitude again.
The utility model discloses between shell and the core by counter weight, pottery, change width of cloth pole group one-tenth, added the sleeve of gathering the tetrafluoro material, the O type ring has been pressed at the sleeve both ends, and this kind of structure can effectively reduce the supersound to the conduction of shell to can show the low frequency vibrations that reduce inside vibrations and accompany the production. The contact parts of the rest core bodies and the surgical and connecting parts are also made of O-shaped rings made of silicon rubber, so that the whole transducer has higher mechanical quality factor and can effectively break harder stones.
Meanwhile, the transducer is also provided with a ballistic lithotripsy interface, ultra-large superhard stones can be treated by combining ultrasound and ballistic methods, and the interface is also suitable for laser lithotripsy equipment such as holmium laser and neodymium laser.
Additionally, another innovation point of the utility model is that the pressure regulating exhaust valve is installed to transducer handle rear end, solves the problem that the soft tissue that adsorbs pressure in the art blocks up the needle tubing, injures human organs with inhaling easily, makes the operation of rubble more convenient and easy, also safe and reliable more.
Drawings
FIG. 1 is a schematic diagram of a prior art in vivo ultrasonic lithotripsy transducer from R-Wolf corporation;
FIG. 2 is a schematic structural view of the ultrasonic lithotripsy transducer in vivo;
FIG. 3 is a cross-sectional view of the portion of the transducer cable lead of FIG. 2 taken along line B-B;
FIG. 4 is a cross-sectional view of the transducer radial through-hole of FIG. 2 taken along line A-A;
FIG. 5 is a sectional view of the pressure regulating exhaust valve of the present invention;
FIG. 6 is an exploded perspective view of the pressure regulating exhaust valve of the present invention;
FIGS. 7 a-d are schematic structural views of a needle valve element of a pressure regulating exhaust valve according to the present invention;
fig. 8 a-d is a schematic structural view of the exhaust valve cap of the pressure regulating exhaust valve of the present invention.
Reference symbols of the drawings
1. Stainless steel needle tube 2, connector 3 and connector O-ring
4. Elastic tube 5, amplitude transformer 6 and amplitude transformer O-ring
7. Piezoelectric ceramic piece 8, sleeve 9 and balance weight
10. Pressing bolt 11, shell 12 and sleeve O-shaped ring
13. Pressure regulating exhaust valve 14, sealing gasket 15 and rear cover
16. Air pipe joint O-ring 17, air pipe joint 18 and adapter
19. Compression bolt O-ring 20, stone suction conduit 21 and insulating sleeve
22. Electrode slice 23, cone cap
24. Wire 25, wire interface cap 26, wire interface seat
131. Needle valve spool 132, needle valve body 133 and three-way pipe joint
134. Exhaust valve cap 135, compression spring 136, exhaust valve stem
137. Exhaust valve body 138, sealed O type circle
Detailed Description
As shown in fig. 2-4, the utility model discloses a be applied to transducer among internal supersound rubble appearance comprises stainless steel needle pipe 1, connector 2, connector O type ring 3, elastic tube 4, become width of cloth pole 5, become width of cloth pole O type ring 6, piezoceramics piece 7, sleeve 8, counter weight 9, clamp bolt 10, shell 11, sleeve O type ring 12, pressure regulating exhaust valve 13, sealed pad 14, back lid 15, trachea joint O type ring 16, trachea joint 17, adapter 18, clamp bolt O type ring 19, inhale stone pipe 20, insulation support 21, electrode slice 22, cone cap 23, wire 24, wire interface cap 25, wire interface seat 26.
The stainless steel needle tube 1 is a hollow slender stainless steel tube, the connector 2 is in a structure that one end is conical, the other end is cylindrical, the cylindrical surface is provided with threads, and the whole body is axially provided with a circular through hole, the conical end and the stainless steel needle tube 1 are coaxially welded together and are connected through external threads at the cylindrical end and internal threads at the conical end of the amplitude transformer 5, the elastic tube 4 is arranged inside the amplitude transformer 5 and clamped between the connector 2 and the stone absorption catheter 20, wherein the elastic tube 4 is a polytetrafluoroethylene plastic tube, and the stone absorption catheter 20 is a thin-wall stainless steel tube; the piezoelectric ceramic plates 7 can be two or more than two, an electrode plate 22 is clamped between every two piezoelectric ceramic plates, the piezoelectric ceramic plates 7 are clamped between the amplitude transformer 5 and the balance weight 9, the compression bolt 10 penetrates through the balance weight 9, the piezoelectric ceramic plates 7 and the electrode plate 22 and is connected with the amplitude transformer 5, the compression bolt 10 is axially provided with a through hole, the stone absorbing guide pipe 20 penetrates through the through hole and is inserted into the through hole in the axial direction of the adapter 18, a compression bolt O-shaped ring 19 is pressed between the compression bolt 10 and the adapter 18, and the part of the compression bolt 10 penetrating through the piezoelectric ceramic plates 7 and the electrode plate 22 is sleeved with an insulating sleeve 21; the adapter 18 is of a four-way structure, two radial holes are respectively connected with the pressure regulating exhaust valve 13 and the air pipe joint 17, wherein an air pipe joint O-shaped ring 16 is pressed at the joint of the air pipe joint 17, the axial front end is connected with the stone suction catheter 20, the rear end is in threaded connection with the rear cover 15, and a sealing gasket 14 is pressed between the air pipe joint O-shaped ring and the stone suction catheter; shell 11 and cone cap 23 are threaded connection, it has connector O type ring 3 to fill up between the cone end inside and the 5 awl end outside of width of cloth pole of cone cap 23 awl end, the inside and the 5 great end outside of the great diameter of width of cloth pole of cone cap 23, also be exactly the position at whole transducer node place, it has width of cloth pole O type ring 6 to press between, 8 covers of sleeve have sleeve O type ring 12 between shell 11 and counter weight 9, and 18 between the adapter, the other end and the 6 pressure contact of width of cloth pole O type ring.
In the technical scheme, the working frequency of the transducer is 23-28 kHz; the amplification factor of the amplitude transformer is about 10-16 times; the amplitude of the tail end of the stainless steel needle tube is 40-100 um; the shell is made of high-temperature-resistant resin material, the sleeve is made of polytetrafluoroethylene resin material, the O-rings at two ends are made of silicon rubber material, and the shell, the sleeve and the O-rings ensure the insulation and sealing of the piezoelectric ceramic and the electrode plate inside the shell and the external shell; the whole device can be fumigated and disinfected at 125 ℃ or soaked in a disinfectant at normal pressure.
In this example, the piezoelectric ceramic plate 7 is two pieces, the electrode plate 22 is sandwiched between the two pieces, the amplitude transformer 5 and the counter weight 9 sandwich the piezoelectric ceramic plate 7 and the electrode plate 22, the compression bolt 10 passes through the counter weight 9, the piezoelectric ceramic plate 7 and the electrode plate 22 and is connected with the amplitude transformer 5, and matching glue is coated on the contact surfaces of the amplitude transformer 5, the counter weight 9, the piezoelectric ceramic plate 7 and the electrode plate 22, and the compression bolt 10 compresses the contact surfaces to obtain lower impedance and proper frequency. The axial direction of the compression bolt 10 is provided with a through hole, the stone absorbing conduit 20 passes through the through hole and is inserted into the axial direction of the adapter 18, and the part of the compression bolt 10 passing through the piezoelectric ceramic plate 7 and the electrode plate 22 is sleeved with an insulating sleeve 21. The adapter 18 is a four-way structure, two radial holes are respectively connected with the pressure regulating exhaust valve 13 and the air pipe connector 17, wherein the joint of the air pipe connector 17 and the air pipe connector is pressed with an air pipe connector O-ring 16, the rear end of the air pipe connector is in threaded connection with a rear cover 15, and a sealing gasket 14 is pressed between the air pipe connector and the rear cover; after the rear cover 15 and the sealing mat 14 are removed, the adapter 18 can be connected to a corresponding pneumatic ballistic or laser lithotripsy device. Stainless steel needle tubing 1 and connector 2 coaxial welding together, through the internal thread connection of the external screw thread on connector 2 and the 5 awl end of width of cloth pole, elastic tube 4 is in the inside of width of cloth pole 5, press from both sides between connector 2 and inhale stone pipe 20, shell 11 and cone cap 23 are threaded connection, it has connector O type ring 3 to fill up between the cone end inside of cone cap 23 awl end and the 5 awl end outside of width of cloth pole, the inside of the great diameter end of cone cap 23 and the great end outside of the 5 diameter of width of cloth pole, also be exactly the position at whole transducer node place, it has amplitude of cloth pole O type ring 6 to press between, sleeve 8 covers between shell 11 and counter weight 9, and the adapter 18 between press has sleeve O type ring 12, the other end and the pressure contact of amplitude of cloth pole O type ring 6.
The utility model also provides a pressure regulating device-pressure regulating discharge valve for on the gas pipeline, through a pressure regulating needle valve and quick discharge valve's integrated configuration, overcome the difficulty of one-hand concurrent operation pressure regulating needle valve and discharge valve for the negative pressure attracts the pressure regulating and the quick exhaust of pipeline.
As shown in fig. 5 to 8, the pressure-regulating exhaust valve comprises an O-shaped rubber ring 138, an exhaust valve rod 136, a needle valve core 131, a needle valve body 132, an exhaust valve cap 134 and a compression spring 135, the exhaust valve rod 136 is connected with the exhaust valve cap 134 through threads, the compression spring 135 is sleeved on the exhaust valve rod 136 and penetrates through an inner hole of the needle valve core 131, the O-shaped rubber ring is arranged between the exhaust valve rod 136 and the needle valve core 131, the needle valve core 131 is directly connected with the needle valve body 132 through threads, the lower end matching position is a conical surface, threads for installation with the outside are arranged on the outer surface of the needle valve body 132, and the O-shaped rubber ring 138 is sleeved at one end. The needle valve core 131 has an axial stepped bore and two radial bores. And has the following characteristics: 1. the exhaust valve rod 136 and the needle valve core 131 are kept sealed by an O-shaped rubber ring, the needle valve body 132 is connected with an external pipeline through threads, and the sealing is ensured by pressing the O-shaped rubber ring 138. The contact limit end surfaces of the needle valve core 131 and the exhaust valve rod 136 are kept sealed through an O-shaped rubber ring 138. 2. All parts are assembled on the same axis. 3. The valve core 1 of the needle valve is provided with a stepped hole in the axial direction, the exhaust valve rod 136 passes through the stepped hole, the exhaust valve rod and the stepped hole are in radial sliding fit at the position with smaller hole diameter, and the end surface is provided with a step for limiting. 4. The needle valve core 131 has two radial holes, when the system positive pressure is adjusted, the gas flows out from the gap between the needle valve core 131 and the needle valve body 132 through the radial holes on the needle valve core 131 and then through the axial step holes on the needle valve core 131, and when the system negative pressure is adjusted, the gas flow direction is opposite to that when the system positive pressure is adjusted.
The upper parts of the needle valve body and the needle valve core of the utility model are in threaded connection, when in use, the needle valve core is rotated anticlockwise, the needle valve core and the needle valve body can be relatively separated in the axial direction, the conical surface at the lower end forms an annular gap, and the size of the gap is determined by the axial separation distance between the needle valve body and the needle valve core, so that the pressure can be adjusted; the needle valve core simultaneously acts as a quick exhaust valve body. The negative pressure suction device has the advantages that the whole structure of the air pressure adjusting device is arranged on the negative pressure suction pipeline through threads on the valve body of the needle valve, and the sealing is ensured by the O-shaped rubber ring. When the air pressure of the pipeline needs to be adjusted, the valve core of the needle valve is rotated, the needle valve is opened, and outside air enters the pipeline through two radial holes in the valve core of the needle valve; when quick exhaust is needed, the exhaust valve cap is pressed down to drive the exhaust valve rod, the O-shaped rubber ring is separated from the lower end face of the needle valve core, quick exhaust is achieved, the exhaust valve cap is loosened, and the exhaust valve cap drives the exhaust valve rod to reset under the action of the compression spring; just the utility model discloses simple structure, compactness, easily processing conveniently dismantles the washing, and pressure regulating exhaust action one hand just can realize.
Claims (10)
1. A transducer for use in an in vivo ultrasonic lithotripter, comprising: the device comprises a stainless steel needle tube (1), a connector (2), a connector O-shaped sealing ring (3), an elastic tube (4), an amplitude transformer (5), an amplitude transformer O-shaped sealing ring (6), a piezoelectric ceramic piece (7), a balance weight (9), a compression bolt (10), a shell (11), a gas pipe connector O-shaped sealing ring (16), a gas pipe connector (17), a compression bolt O-shaped sealing ring (19), a stone suction catheter (20), an insulating sleeve (21), an electrode plate (22), a cone cap (23), a lead (24), a lead interface cap (25) and a lead interface seat (26);
it is characterized in that the preparation method is characterized in that,
the wire interface seat (26) on the upper part of the shell (11) and the wire interface cap (25) on the wire interface seat are arranged at the position deviated from the axis;
the shell (11) is internally provided with an adapter (18) above the compression bolt (10), the adapter (18) is of a four-way structure, the front end of an axial central through hole of the adapter is communicated with a stone absorbing guide pipe (20), and the rear end of the central through hole is fixedly connected to the top end of the shell (11); the converter (18) is provided with a peripheral through hole in the axial direction at a position deviating from the axial line corresponding to the wire interface seat (26) and a wire interface cap (25) thereon, and the upper end of the peripheral through hole is communicated with the wire interface seat (26) and is used for accommodating wires; the converter (18) deviates from the peripheral through hole and is provided with two radial through holes along the radial direction, the two radial through holes are respectively used for communicating the pressure regulating exhaust valve (13) with the air pipe joint (17), and the air pipe joint O-shaped sealing ring (16) is pressed at the joint of the air pipe joint (17) and the converter (18).
2. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein the rear end of the central through hole can be connected with a corresponding air pressure ballistic or laser lithotripter; or a rear cover (15) is connected in a threaded manner, and a sealing gasket (14) is pressed between the rear end and the rear cover.
3. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein the pressure-regulating exhaust valve (13) comprises a needle valve body, a needle valve core, an exhaust valve rod, an exhaust valve cap, a compression spring and an O-shaped rubber ring which are coaxially arranged;
the needle valve body is in a circular tube shape, and the outer surface of the needle valve body is provided with threads for connecting with a three-way pipe on an external gas pipeline; the lower end of the needle valve body is sleeved with an O-shaped rubber ring, and the O-shaped rubber ring is tightly pressed to ensure the sealing between the needle valve body and the three-way pipe;
the valve core of the needle valve is approximately T-shaped and is sleeved in the valve body of the needle valve from top to bottom; the outer surface of the upper part of the needle valve core is in threaded connection with the inner surface of the upper part of the needle valve body, a gap is reserved between the outer surface of the lower part of the needle valve core and the inner surface of the lower part of the needle valve body, and the matching part of the needle valve core and the lower port of the needle valve body is a conical surface; the needle valve core is hollow, and the inner surface of the lower part of the needle valve core is provided with a flange which is used for sliding fit with the exhaust valve rod; the lower part of the valve core of the needle valve is also provided with two radial holes which are respectively positioned at the upper side and the lower side of the flange;
the exhaust valve rod is in an inverted T shape and is sleeved in the needle valve core from bottom to top, a compression spring is sleeved at a gap between the needle valve core and the upper part of the exhaust valve rod, and the lower end of the compression spring is abutted against a stepped hole formed by a flange; an O-shaped rubber ring is arranged between a flange at the lower end of the exhaust valve rod and a limiting end face contacted with the lower end of the needle valve core;
the exhaust valve cap is connected to the top end of the exhaust valve rod through threads, a circular groove used for sleeving a compression spring is formed in the center of the lower end face of the exhaust valve cap, and a groove and the circular groove are formed in the lower end face of the exhaust valve cap in the radial direction and communicated.
4. The transducer applied to the ultrasonic lithotripter in vivo according to claim 3, wherein the longitudinal section of the upper end of the needle valve core is H-shaped, and the upper end surface of the needle valve core is used as a step limit of the exhaust valve cap.
5. The transducer applied to the ultrasonic lithotripter in vivo according to claim 3 or 4, wherein the radial groove on the lower end face of the exhaust valve cap is cross-shaped.
6. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein the diameter of the counterweight (9) is 1-3 mm larger than that of the piezoelectric ceramic piece.
7. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein the length of the stainless steel needle tube (1) is 380-440 mm.
8. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein the piezoelectric ceramic plates (7) can be two or more, and each two adjacent piezoelectric ceramic plates sandwich the electrode plate (22).
9. The transducer applied to the ultrasonic lithotripter in vivo as claimed in claim 1, wherein a sleeve (8) is further sleeved between the housing (11) and the counterweight (9), the sleeve is made of polytetrafluoroethylene resin material, and two ends of the sleeve are connected with O-shaped sealing rings.
10. The transducer for use in an intracorporeal ultrasonic lithotripter of claim 1, wherein the horn has an exponential profile with y ═ a × ebx，0≤x≤20。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820004344XU CN201179091Y (en) | 2007-12-28 | 2008-01-31 | Energy converter applied in ultrasonic crush stone instrument in vivo |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710304461.8 | 2007-12-28 | ||
| CN200710304461 | 2007-12-28 | ||
| CNU200820004344XU CN201179091Y (en) | 2007-12-28 | 2008-01-31 | Energy converter applied in ultrasonic crush stone instrument in vivo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179091Y true CN201179091Y (en) | 2009-01-14 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820004344XU Expired - Lifetime CN201179091Y (en) | 2007-12-28 | 2008-01-31 | Energy converter applied in ultrasonic crush stone instrument in vivo |
| CN2008100067580A Active CN101467909B (en) | 2007-12-28 | 2008-01-31 | Transducer for ultrasound lithotripter in vivo |
| CN2008100851639A Active CN101467910B (en) | 2007-12-28 | 2008-03-24 | In vivo ultrasound lithotripter |
| CNU2008201074036U Expired - Lifetime CN201179093Y (en) | 2007-12-28 | 2008-03-26 | Ultrasonic lithoriptor in vivo |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100067580A Active CN101467909B (en) | 2007-12-28 | 2008-01-31 | Transducer for ultrasound lithotripter in vivo |
| CN2008100851639A Active CN101467910B (en) | 2007-12-28 | 2008-03-24 | In vivo ultrasound lithotripter |
| CNU2008201074036U Expired - Lifetime CN201179093Y (en) | 2007-12-28 | 2008-03-26 | Ultrasonic lithoriptor in vivo |
Country Status (1)
| Country | Link |
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| CN (4) | CN201179091Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467909B (en) * | 2007-12-28 | 2011-02-02 | 北京奥麦特科技有限公司 | Transducer for ultrasound lithotripter in vivo |
| CN102974906A (en) * | 2012-12-29 | 2013-03-20 | 苏州市职业大学 | Ultrasonic electrospark composite machining vibrator based on longitudinal vibration mode |
| CN103042281A (en) * | 2012-12-29 | 2013-04-17 | 苏州市职业大学 | Ultrasonic and electric spark combined machining vibrator on basis of longitudinal-torsional combined mode |
| CN104473674A (en) * | 2014-12-11 | 2015-04-01 | 武汉浩宏科技有限公司 | Multi-power internal stone breaker |
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| CN110246563A (en) * | 2019-06-14 | 2019-09-17 | 合肥大族科瑞达激光设备有限公司 | Holmium laser therapy equipment |
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| GB2116045B (en) * | 1982-03-04 | 1985-01-23 | Wolf Gmbh Richard | Piezoelectric transducers having a curved tubular shaft for disintegrating calculi |
| CN1035229C (en) * | 1991-03-09 | 1997-06-25 | 中国人民解放军空军工程学院 | Ultrasonic tooth cleaner |
| CN1085415A (en) * | 1993-06-11 | 1994-04-20 | 张建华 | Portable external ultrasonic lithotriptor |
| CN1073453C (en) * | 1996-12-27 | 2001-10-24 | 中国科学院声学研究所 | In vitro supersonic therapeutical instrument for medical purpose |
| US6569109B2 (en) * | 2000-02-04 | 2003-05-27 | Olympus Optical Co., Ltd. | Ultrasonic operation apparatus for performing follow-up control of resonance frequency drive of ultrasonic oscillator by digital PLL system using DDS (direct digital synthesizer) |
| CN201179091Y (en) * | 2007-12-28 | 2009-01-14 | 北京奥麦特科技有限公司 | Energy converter applied in ultrasonic crush stone instrument in vivo |
-
2008
- 2008-01-31 CN CNU200820004344XU patent/CN201179091Y/en not_active Expired - Lifetime
- 2008-01-31 CN CN2008100067580A patent/CN101467909B/en active Active
- 2008-03-24 CN CN2008100851639A patent/CN101467910B/en active Active
- 2008-03-26 CN CNU2008201074036U patent/CN201179093Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101467909B (en) * | 2007-12-28 | 2011-02-02 | 北京奥麦特科技有限公司 | Transducer for ultrasound lithotripter in vivo |
| CN102974906A (en) * | 2012-12-29 | 2013-03-20 | 苏州市职业大学 | Ultrasonic electrospark composite machining vibrator based on longitudinal vibration mode |
| CN103042281A (en) * | 2012-12-29 | 2013-04-17 | 苏州市职业大学 | Ultrasonic and electric spark combined machining vibrator on basis of longitudinal-torsional combined mode |
| CN103042281B (en) * | 2012-12-29 | 2016-01-27 | 苏州市职业大学 | Based on the ultrasonic edm Compound Machining oscillator of Hybrid transducer mode |
| CN102974906B (en) * | 2012-12-29 | 2016-03-02 | 苏州市职业大学 | Based on the ultrasonic edm Compound Machining oscillator of longitudinal vibration mode |
| CN104473674A (en) * | 2014-12-11 | 2015-04-01 | 武汉浩宏科技有限公司 | Multi-power internal stone breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101467909B (en) | 2011-02-02 |
| CN101467910A (en) | 2009-07-01 |
| CN101467910B (en) | 2010-09-29 |
| CN101467909A (en) | 2009-07-01 |
| CN201179093Y (en) | 2009-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090114 Effective date of abandoning: 20080131 |