KR101643885B1 - Ultrasonic cartridge - Google Patents

Abstract

The present invention relates to an ultrasonic cartridge. The ultrasonic cartridge according to the present invention includes: a cartridge housing detachably attached to a head body by the medium of a coupling part, sealing a liquid therein, and installed in a lower portion thereof with a flat window for transmitting ultrasonic waves to a treatment area; an ultrasonic transducer mounted inside the cartridge housing, and providing the ultrasonic waves to the treatment area through the flat window; and a fitting member allowing the ultrasonic transducer to move closely contacting an upper surface of the flat window by elastic restoring force. According to the present invention as described above, pivot movement of a stage according to operation of a first actuator and a second actuator allows the transducer mounted inside the cartridge by the fitting member to perform plane motion, so that uniform energy is applied to a treatment region of desired depth, thereby improving treatment performance.

Description

[0001] ULTRASONIC CARTRIDGE [0002]

The present invention relates to an ultrasonic cartridge for use in an apparatus for treating obesity using a high intensity focusing type ultrasound (HIFU). More particularly, the present invention relates to a transducer that performs planar motion by biaxial control and uniformly infiltrates ultrasonic waves To an ultrasonic cartridge capable of improving the performance of treating obesity.

In recent years, as the diet has become westernized, obesity has rapidly increased, leading to the greatest harm to public health and beauty. Various dietary programs and ultrasonic obesity treatment apparatuses have been developed and widely used for treating this problem.

High Intensity Focused Ultrasound (HIFU) is a non-invasive method for the treatment of cancer cells by selectively coagulating the internal organs and destroying cancer cells. However, in the United States, (Liposonix) equipped with HIFU for the first time. The process of fat destruction using high intensity focused ultrasound (HIFU) is that when the ultrasound is focused at a certain point in the adipose tissue, the tissue temperature instantaneously rises from 65 ° C to 100 ° C, thereby destroying the tissue. Unlike other dermatological equipment, such as laser and RF high frequency equipment, the HIFU equipment concentrates HIFU energy on non-invasively selected areas without causing any damage to the skin surface to induce coagulation necrosis do. These necrotic adipocytes are naturally removed by our body's repair mechanism.

Known ultrasonic obesity treatment apparatuses include 'Apparatus and method for destroying adipose tissue' filed as Application No. 10-2007-7027898. No. 10-2007-7027898 discloses an ultrasonic transducer comprising a head having at least one ultrasonic transducer, a suspending device for supporting the head, and a controller for controlling the ultrasonic transducer, . ≪ / RTI > The 'tissue imaging and treatment system' filed with the application No. 10-2011-7017983 includes a hand-operated hand wand, a removable emitter-receiver module with an ultrasonic transducer, and a hand- The image is displayed on the display, and in the treatment mode, ultrasonic waves of 3mm ~ 4.5mm (SMAS layer) beneath the surface of the skin are given to give elasticity to the skin and improve the wrinkles.

[0003] On the other hand, such ultrasonic obesity treatment apparatuses have a head or a handpiece for generating HIFU according to the control of the controller to decompose subcutaneous fat of a patient. The 'Ultrasonic Therapy Head with Operation Control' filed with the application number 10-2006-7013272 includes an enclosure having a window, a HIFU transducer suspended within the enclosure, and a HIFU transducer, And an actuator for moving in the X-axis and Y-axis directions so as to provide the X-axis and Y-axis directions. &Quot; Therapy head using ultrasound system ", filed with the application number 10-2010-7019552, includes an enclosure, a partition for separating the lower compartment and the upper compartment with the window, an opening of the partition, A control arm, an operating assembly located in the upper chamber and controlling the control arm, and a HIFU transducer coupled to the lower end of the control arm.

The 3-axis control head of the non-invasive subcutaneous fat reduction device using the high-intensity focusing type ultrasound, which was registered by the applicant with the patent application No. 10-1177691, is controlled in three axes under the control of the controller, So that ultrasonic waves are provided in three dimensions.

KR 10-2006-0121267 A KR 10-1177691 B1

In order to treat the obesity using the high-intensity focusing type ultrasound, a process of providing the ultrasound to the patient by using the head is required. In providing the ultrasonic wave by the conventional head, the ultrasonic wave is provided as a curved surface (arc) The energy to be supplied is reduced, and the depth of focus is changed, so that uniform treatment can not be performed.

It is an object of the present invention to provide an ultrasonic cartridge in which a transducer can be uniformly controlled in a plane to improve treatment performance.

In order to solve the above problems, the ultrasonic cartridge according to the present invention is detachable through a coupling part to a head body, a liquid is sealed inside, and a flat window for transmitting ultrasonic waves to a treatment area is installed in a lower part An ultrasonic transducer provided inside the cartridge housing for providing ultrasonic waves to the treatment area through the planar window; and an ultrasonic transducer for moving the ultrasonic transducer in close contact with the upper surface of the plane window by elastic restoring force And a fitting member is included.

The fitting member may include a connection portion connected to a lower portion of the stage provided in the head body, a first support coupled to a lower portion of the connection portion in the cartridge housing and having a lower insertion portion formed therein, A second support which is inserted into the insertion portion and whose upper portion is raised and lowered by pivotal movement of the stage to compress the compression spring, And a transducer housing coupled to the ball joint and the contact ball joint, the transducer housing the transducer, and moving in close contact with the upper surface of the plane window by elastic restoring force stored in the compression spring. do.

The apparatus further includes a separation preventing protrusion formed on an outer circumferential surface of the second support and a separation preventing jaw formed on an inner wall of the first support to prevent the second support from being separated from the first support .

The connection portion may include a cartridge PCB connected to the controller through a lead connector and a bellows for sealing the liquid, the lower portion of the head body being connected to the outer surface of the first support through a coupling magnet, And a stopper for preventing the connection portion from being released to the outside of the cartridge housing when the lower portion of the head body and the magnet for coupling are separated from each other.

As described above, according to the present invention, since the transducer having the pivotal movement of the stage according to the operation of the first actuator and the second actuator is provided inside the cartridge by the fitting member, And uniform energy is applied to improve the therapeutic performance.

1 is a perspective view illustrating a head of an ultrasonic treatment apparatus according to the present invention.
Fig. 2 is a side view of Fig. 1. Fig.
Fig. 3 is another side view of Fig. 1. Fig.
4 is an exploded perspective view of a head body with an operating assembly in a head according to the present invention.
5 is a perspective view of a base plate according to the present invention.
6 is a perspective view of a cartridge mounted on a head according to the present invention.
7 is an exploded perspective view of Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same reference numerals shown in the drawings denote the same members. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

2 is a side view of Fig. 1, Fig. 3 is another side view of Fig. 1, Fig. 4 is a perspective view of a head body with an operation assembly in the head according to the present invention, Fig. Fig.

The ultrasonic treatment head 10 according to the present invention is manufactured such that the overall shape of the ultrasonic treatment head 10 can be easily handled by contacting the patient's skin with the hand of a practitioner (e.g., a doctor).

The head 10 for ultrasound therapy includes a head body 100 having a first actuator 110 and a second actuator 120 built therein and a head body 100 detachable from the head body 100, And a cartridge 200 for irradiating ultrasonic waves while moving along the skin, which is a treatment area, while generating ultrasonic waves according to the ultrasonic waves.

Here, the skin, which is the treatment area, may have a flat shape such as a thigh or the like, but may have a curved shape such as an abdomen.

The present invention is characterized in that ultrasonic waves can be irradiated to subcutaneous fat by irradiating ultrasonic waves while moving along the skin irrespective of the flat shape or the curved shape as described above. Accordingly, it is possible to always irradiate ultrasound at a constant depth and infiltrate.

When the ultrasonic treatment head 10 according to the present invention is implemented as a portable and stand-alone type, a controller is provided inside the head body 100 when power is supplied. The ultrasonic treatment head 10 can be independently operated under the control of a controller.

However, it would be more desirable to have a controller separately on the outside for stable power supply and easy operation.

When the controller is separately provided on the outside as described above, the head body 100 and the external controller can be connected by a cable or the like.

1 to 3, the ultrasonic treatment head 10 according to the present invention is composed of a head body 100 and a cartridge 200 detachable from a lower portion of the head body 100.

The head body 100 includes a body housing (not shown) for supporting and protecting elements therein and providing an interface to the user through a display unit, a base plate 300, a translating (reciprocating) motion A first actuator 110 mounted on the upper surface of the base plate 300 and a second actuator installed on the upper surface of the base plate 300 to cause a vertical movement in the second axis, And a stage 130 that pivots the first ball bearing 1 fixed to the lower surface of the base plate 300 by the first actuator 110 and the second actuator 120 about the axis .

The first actuator 110 and the second actuator 120 may be translationally moved in the same manner, but they may be individually translated.

The cartridge 200 is coupled to a lower portion of the head body 100 and includes therein a cartridge housing 212 for housing the transducer 226 and sealing the liquid therein, A planar window (228 in FIG. 7) for transferring ultrasonic waves to the treatment region, a transducer 226 disposed on the inner surface of the planar window 228 by pivoting the stage 130, As shown in Fig.

The fitting member includes a connection portion 204 connected to a lower portion of the stage 130, a first support 214 coupled to a lower portion of the connection portion 204 and having an insertion portion (not shown) formed therein, A second support 218 which is inserted into the insertion part and is lifted and lowered by the pivotal movement of the stage 130 and compresses the compression spring 216, A transducer housing 224 which is coupled with the close ball joint 4 receives a contact ball joint 4 provided at a lower portion of the second support 218 and a transducer 226 for irradiating ultrasound waves to the skin, ).

The transducer housing 224 is closely contacted with the upper surface of the plane window 228 inside the cartridge housing 212 when the resilient restoring force stored in the compression spring 216 is applied by the up and down movement of the second support 218, So that ultrasonic waves are irradiated to the skin.

The planar window 228 may be made of a synthetic resin film having a certain elasticity and partially changing its shape so as to be adhered to the skin. Accordingly, since the transducer housing 224 is moved along the upper surface of the plane window 228, the transducer 226 is able to irradiate ultrasonic waves along the shape of the skin, to be.

4 is an exploded perspective view of a head body having an operating assembly in an ultrasonic treatment head according to the present invention.

4, a first actuator 110 generating a translational motion in a first axis includes a motor 111, a coupler 112 for coupling the rotation shaft of the motor 111 and the lead screw 113, A lead frame 113 which is rotated to the left and right by the motor 111, a support frame 117 for supporting the lead screw 113 and a lead screw 113 which are coupled to the outer peripheral surface of the lead screw 113, The slider 114 reciprocates upward and downward along the outer circumferential surface of the screw 113. The slider 114 prevents free rotation of the slider 114 when the slider 114 moves along the outer peripheral surface of the lead screw 113, A position sensor 116 for detecting the position of the slider 114 and a first drive shaft 140 mounted on the tip of the slider 114. The first drive shaft 140 penetrate the first operation hole 310 formed in the base plate 300 shown in FIG. It is.

The second actuator 120 generating a translational motion in the second axis includes a motor 121, a coupler 122, a lead screw 123, a lead screw 123, A slider 124, a guide rod 128, a position resistor 126, and a second drive shaft 240. The support frame 127, the slider 124, the guide rod 128,

The second driving shaft 240 is connected to the stage 130 through a second actuating hole 320 formed in the base plate 300 in the same manner as the first driving shaft 140 described above.

One side of the first driving shaft 140 and the second driving shaft 240 are connected to the sliders 114 and 124 to transmit the operation of the actuator to the stage. And a second ball joint 2 and a third ball joint 3 are provided on the other side of the drive shaft 150, respectively.

The first actuator 110 and the second actuator 120 are formed on the upper surface of the base plate 300. The first actuator 110 and the second actuator 120 are formed on the upper surface of the base plate 300. The first and second actuators 110, As shown in FIGS. 1 to 3, are disposed perpendicularly to each other with respect to the center of the base plate 300, and are spaced apart from each other at the same distance in the center of the base plate 300.

When the first actuator 110 and the second actuator 120 are disposed at the same position and distance from the center of the base plate 300 as described above, the first and second actuators 110 and 120 It will be easy to control the stage 130 to be driven.

As shown in FIG. 5, the base plate 300 has a first operation hole 310 and a second operation hole 320 formed therethrough. The first movable hole 140 and the second movable shaft 150 penetrate through the first actuating hole 310 and the second actuating hole 320 so that the stage 130 disposed below the base plate 300, Lt; / RTI >

The first movable shaft 140 connects the first actuator 110 and the first block 131 of the stage 130 and the second movable shaft 150 connects the second actuator 210 and the stage 130, The second block 132 of FIG.

One side (upper portion) of the first movable shaft 140 and the second movable shaft 150 are individually coupled to the sliders 114 and 124 of the first actuator 110 and the second actuator 120, respectively . The first movable shaft 140 and the second movable shaft 150 are coupled to the first block 310 and the second block 320, respectively. The second ball joint 2 and the third ball joint 3 are provided at the other end of the first movable shaft 140 and the second movable shaft 150, respectively.

The first block 131 and the second block 132 are coupled via a hinge and the second block 320 is rotatably coupled to the first block 310 to the left and right.

The second ball joint 2 and the third ball joint 3 are coupled to the first block 131 and the second block 132 respectively and the second ball joint 2 and the third ball joint 3 are connected to each other. (Not shown) formed in the first block 131 and the second block 132, respectively.

The movable groove has a predetermined length along the longitudinal direction of the first block 131 and the second block 132 so that the lateral movement of the second ball joint 2 and the third ball joint 3 is partially permitted Respectively.

Accordingly, the second ball joint 2 and the third ball joint 3 are rotatably coupled to the movable groove, and at the same time, some movement is possible.

The stage 130 is connected to the lower part of the base plate 300 through a pivot shaft 400. A first ball joint 1 is provided under the pivot shaft 400. [

The stage 130 is rotatably connected to the lower portion of the base plate 300 by the first ball joint 1 and the pivot shaft 400 is a central axis of rotation of the stage 130. The first ball joint 1 is not moved in the lateral direction differently from the second ball joint 2 and the third ball joint 3 described above.

That is, the stage 130 pivotally moves with respect to the base plate 300 with the first ball joint 1 as an axis of pivoting motion, and the first and second actuators 110 and 120 are moved up and down And can be freely operated up and down and left and right.

The stage 130 is a member rotatably coupled to a lower surface of the base plate 300 through a first ball joint 1. The stage 130 includes a first block 131 and a second block 132 ).

The first block 131 is connected to the lower surface of the base plate 300 through a first ball joint 1 provided at a lower portion of the pivot shaft 400. The second block 132 is coupled to the first block 131 via a hinge so as to be rotatable in the left and right direction and the rotational angle at which the second block 132 rotates left and right with respect to the first block 131 is controlled by a control (E.g., 120 degrees).

The second ball joint 2 is connected to the first block 131 and the third ball joint 3 is connected to the second block 132. The first ball 131 and the second ball 132 Are respectively formed with movable grooves so that the second ball joint 2 and the third ball joint 3 can be inserted and moved in the lateral direction.

In other words, the stage 130 composed of the first block 131 and the second block 132 is rotated in the state where the axis is fixed by the first ball joint 1, and the first actuator 110 and the second actuator 132, The second ball joint 2 and the third ball joint 3 are pivotally moved while being partially moved along the longitudinal direction of the movable groove by the translational motion of the first ball joint 2 and the second ball joint 2.

The coupling magnet 133 is connected to the connection portion 204 of the fitting member at the lower portion of the stage 130. The coupling magnet 133 allows the fitting member to pivot the stage 130 And a detailed description thereof will be given later.

Reference numeral 134 denotes a member for engaging with a fitting member to be described later, and reference numeral L denotes a limit switch for sensing the sliders 114 and 124. An unexplained reference numeral P is connected to the controller and the input unit 150 Which is connected to the cartridge PCB 202 to be described later

Although not shown in the drawings, the fitting member and the coupling magnet 133 are strongly coupled by a magnetic force so that the fitting member of the cartridge 120 can move the transducer 226 according to the movement of the stage 130. [

The head body 100 is provided with a display (not shown) or a touch screen (not shown) mounted on the body housing to provide an interface with a user, software executed according to a predetermined operation algorithm to execute a first actuator And a control board 142 for controlling the operation of the second actuator 110 and the second actuator 120 and driving the transducer 226. The position resistors 116 and 126 of the actuators 110 and 120 are connected to the control board 142 so that the direction of rotation of the actuators 110 and 120 is switched when the sliders 114 and 124 reach the upper and lower positions.

In addition to the above-described configuration, the head body 100 may further include a detection sensor for checking whether the cartridge 200 is well coupled.

FIG. 6 is a perspective view of a cartridge mounted on a head according to the present invention, and FIG. 7 is an exploded perspective view of FIG.

6 to 7, the cartridge 200 includes a cartridge PCB 202, a connection portion 204, a bellows support ring 206, a bellows 208, an upper cover 210, a cartridge housing 212, A first support 214, a compression spring 216, a second support 218, a transducer housing 224, a transducer 226, a planar window 228 and a bottom cover 230.

The cartridge PCB 202 is a member connected to the controller and controlled by the input 150 shown in Figs. The cartridge PCB 202 is connected to a terminal (not shown) supplied with power for driving a transducer 226 to be described later through a lead connector of the head body 100, a controller 226 and a transducer 226, And a terminal (not shown) receiving a driving pattern of the cartridge PBC 202 and the transducer 226. The cartridge PBC 202 and the transducer 226 should be connected to each other by unillustrated wires.

The connection part 204 is a member for coupling with the head body 100 and is connected to the contact connector and the coupling part of the head body 100 to connect the pivot movement of the stage 130 and the electric signal of the control board 142 .

The coupling part 204 is provided with a coupling magnet 133 and another coupling magnet 203 for coupling with the magnetic force by using a separate fixing bracket 205 And may be installed in the connection portion 204.

The bellows 208 is fastened to the cartridge housing 212 by the bellows supporter ring 206 to seal the inner liquid while allowing the movement of the transducer 226 to be prevented from leaking to the outside.

The plane window 228 is installed in the cartridge housing 212 and serves to transmit ultrasonic waves to the treatment area.

The upper cover 210 and the lower cover 230 are fastened to the cartridge housing 212 to seal the inner space of the cartridge 200 together with the bellows 208 and the planar window 228, So that the liquid does not leak.

The fitting member includes a connecting portion 204 connected to the lower portion of the stage 130, a lower portion of the connecting portion 204 inside the cartridge housing 212, A compression spring 216 installed inside the first support 214 and an upper portion are inserted into the insertion portion and the compression spring 216 can be compressed while being raised and lowered by the pivot movement of the stage 130 And a transducer housing 224 rotatably coupled with the close ball joint 4 and the close ball joint 4 provided at the lower part of the second support 218. [

The transducer housing 224 accommodates the transducer 226 therein and moves in close contact with the upper surface of the planar window 228 by the elastic restoring force stored in the compression spring 216.

The fitting member is supported by a flat window (not shown) by the coupling of the transducer housing 224 and the tight ball joint 4 and the resilient restoring force stored in the compression spring 216 and the pivoting movement of the stage 130, 228 to move the ultrasonic transducer 226 along the ultrasonic waves.

Accordingly, the transducer 226 provided in the transducer housing 224 can irradiate ultrasound waves to the skin along the upper surface of the planar window 228. The transducer 226 is coupled to the transducer housing 224 to generate ultrasonic waves when a driving signal is input.

On the other hand, a separation preventing protrusion 217 is formed on the outer surface of the second support 218, and a separation preventing tuck (not shown) is formed on the inner wall of the first support.

The second support 218 is prevented from being separated from the first support 214 by the separation preventing jaw.

The outer circumferential surface of the first support 214 restricts the members disposed in the cartridge housing 212 from being released to the outside of the cartridge housing 212 when the head body 100 and the cartridge 200 are separated from each other. It is preferable to further include a stopper 215 for preventing breakage of the bellows 206.

Reference numeral 201 denotes a bracket for coupling the cartridge 200 and the head body 100.

Next, the operation of the ultrasonic treatment head constructed as described above according to the present invention will be described.

Since the depth of the focal area differs depending on the therapeutic purpose, the conventional ultrasound therapy selects the cartridge 200 suitable for the treatment purpose and mounts the cartridge 200 on the head body 100. In addition, the operation pattern and the operation time of the transducer 226 may be selected depending on the treatment site and purpose.

When the ultrasonic treatment head 10 is operated through the user interface of the ultrasonic treatment head 10, the controller drives the first actuator 110 and the second actuator 120 according to a pre-programmed pattern, (226) to generate ultrasonic waves or high concentrated ultrasound (HIFU).

When the motor 111 of the first actuator is rotated, the lead lead screw 113 is rotated through the coupler 112 and the slider 114 fastened to the lead screw 113 moves downward along the screw 113 The first driving shaft 140 connected to the slider 140 moves downward.

At this time, when the second ball joint 2 provided on the first driving shaft 140 moves downward, the stage 130 pivots about the first ball joint 1 of the pivot shaft 400 as an axis.

In this way, when the second actuator 120 is operated, the stage 130 is pivoted by the first ball joint 1 and the second ball joint 2 and by the second ball joint 2 by the third ball joint 3 The pivoting motion is combined to cause pivoting motion in various directions.

When the slider 114 of the first actuator 110 reaches the lower limit position through the position resistance 116, the controller rotates the first actuator 110 in the opposite direction to rotate the first actuator 110, Thus, the slider 114 moves upward. When the slider 114 of the first actuator 110 reaches the upper limit position in the same manner through the position resistance 116, the controller rotates the first actuator 110 in the opposite direction So that the slider 114 reciprocates between the upper limit and the lower limit, thereby pushing or pulling the stage 130.

On the other hand, the pivotal movement of the stage 130 is transmitted to the fitting member of the cartridge 200, which moves the transducer 226 mounted on its plane end by pivoting motion along the plane window 228.

At this time, the length of the entire axis of the fitting member is varied by the compression spring 216 so that the pivot movement is converted into the planar motion so that the ultrasonic waves irradiated from the transducer 226 are irradiated in a plane.

That is, at the center of the plane window 228, the length of the fitting member is shortened, the compression spring 216 is compressed a lot, and the elastic restoring force stored in the compression spring 216 is applied while moving to the periphery, So that the ultrasonic wave is radiated in a plane in the area of the plane window 228, so that the depth of the ultrasonic focussing of the transducer 226 becomes a uniform plane in both the center and the periphery.

Optimal embodiments have been disclosed in the drawings and specification. Although specific terms are used herein, they are used for the purpose of describing the present invention only and are not used to limit the scope of the present invention described in the claims or the claims. Therefore, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1-first ball joint 2-second ball joint
3- Third ball joint 4-contact ball joint
10-Head for ultrasound therapy
100-head body
110 - first actuator 111 - motor
112-Coupler 113-Lead Screw
114 - Slider 116 - Position Resistance
117-Support frame 118-Guide rod
120 - second actuator 121 - motor
122-Coupler 123-Lead Screw
124-slider 126-position resistance
127-support frame 128-guide rod
130-Stage 131-The first block
132-second block 133-coupling magnet
140-
150-second drive shaft
200-Cartridge 202-Cartridge PCB
203-coupling magnet 204-connection portion
205-fixing bracket 210-upper cover
212-Cartridge housing 214-First support
215-stopper 216-compression spring
217-Detachment protrusion 218-Second support
224-transducer housing 226-transducer
228-plane window 230-bottom cover
300-base plate 310-first working hole
320-second working hole
400-pivot axis

Claims (4)

A cartridge housing in which a liquid is sealed inside and a planar window for delivering ultrasonic waves to a treatment area is provided at a lower portion of the cartridge body,
An ultrasonic transducer provided inside the cartridge housing and providing ultrasonic waves to the treatment area through the plane window;
And a fitting member connected to the stage provided on the head body to receive the pivot movement of the stage to move the ultrasonic transducer,
Wherein the fitting member comprises:
And a compression spring for increasing or reducing the elastic restoring force by the pivot movement of the stage is provided so that the ultrasonic transducer is brought into close contact with the upper surface of the plane window due to the elastic restoring force of the compression spring. The method according to claim 1,
Wherein the fitting member comprises:
A connection portion connected to a lower portion of the stage,
A first support which is coupled to a lower portion of the connection portion in the inside of the cartridge housing and in which an insertion portion having an open bottom is formed,
A second support which is inserted into the insertion portion and whose upper portion is inserted into the insertion portion and is raised and lowered by the pivotal motion of the stage to compress the compression spring,
A close contact ball joint provided at a lower portion of the second support,
And a transducer housing coupled to the close ball joint and accommodating the transducer therein and moving in close contact with an upper surface of the planar window by an elastic restoring force stored in the compression spring. The method of claim 2,
A detachment protrusion formed on an outer circumferential surface of the second support,
Further comprising a separation preventing tab formed on an inner wall of the first support to prevent the second support from being separated from the first support. The method of claim 2,
The connecting portion
A cartridge PCB connected to the controller through a lead connector,
And a bellows for sealing the liquid,
A lower portion of the head body and a coupling magnet,
Further comprising a stopper on an outer circumferential surface of the first support to prevent the connection portion from being detached from the cartridge housing when the lower portion of the head body and the coupling magnet are separated.

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