JP6897265B2 - Cover for ultrasonic diagnostic equipment, ultrasonic diagnostic equipment with cover, and bracket for ultrasonic diagnostic equipment - Google Patents

Description

The present invention relates to a bracket for covering the ultrasonic diagnostic apparatus, an ultrasonic diagnostic apparatus with a cover, and a cover for the ultrasonic diagnostic apparatus including the bracket.

As an apparatus for visualizing the inside of a patient, an ultrasonic diagnostic apparatus (imaging transducer) such as Patent Documents 1 and 2 is known. The ultrasonic diagnostic apparatus includes a probe capable of transmitting and receiving ultrasonic waves. In the ultrasonic diagnostic apparatus, the cross section of the part to be inspected is displayed on the monitor by applying the probe to the epidermis (that is, the body surface) of the part to be visualized (that is, the part to be inspected). In an ultrasonic diagnostic apparatus such as Patent Documents 1 and 2, an ultrasonic wave is oscillated and received by a probe, and an echo gel is applied to the body surface at the time of diagnosis, and the probe and the part to be examined are used. The acoustic coupling of is good.

JP-A-2017-042188 Japanese Unexamined Patent Publication No. 2016-93505

In an ultrasonic diagnostic apparatus such as Patent Document 1, as described above, the echo gel is applied to the body surface to improve the acoustic bond between the probe and the test portion, but the echo gel is applied to the surface of the probe. Therefore, it requires a troublesome task of cleaning the probe every time the patient changes. In order to solve such a problem, the inventor came up with the following. That is, the probe is covered with a bag-shaped probe cover body made of gel, which improves the acoustic coupling between the body surface and the probe. As a result, the probe cover body can be interposed between the body surface and the probe, and even if the patient changes, the probe cover body only needs to be replaced, and washing is performed to remove the liquid echo gel. Can be omitted.

Further, in the ultrasonic diagnostic apparatus of Patent Document 2, when performing a puncture operation of puncturing a patient with a needle or the like, it is assumed that the puncture operation is performed while confirming the puncture state (needle position, direction, depth, etc.). It is equipped with an imaging transducer. The imaging transducer is provided with a needle guide on its side surface, and the needle guide can be used to insert a needle or the like to be punctured. That is, in the imaging transducer, the needle to be punctured can be oriented by the needle guide.

In the ultrasonic diagnostic apparatus of Patent Documents 1 and 2 configured as described above, the probe is applied to the body surface for scanning when visualizing the inside of the patient's body. Therefore, even when the probe of the ultrasonic diagnostic apparatus of Patent Document 1 is covered with the probe cover body described above, the probe cover body is displaced with respect to the probe by scanning the probe, which affects the acoustic coupling. It is possible to give. Further, in the ultrasonic diagnostic apparatus of Patent Document 2, a needle guide is attached to the probe via a coupling member formed on the probe. Therefore, if there is rattling between the coupling member and the needle guide, the needle guided by the needle guide will shake when the needle is punctured. Therefore, it is required to suppress the configuration attached to the probe from moving with respect to the probe.

Therefore, an object of the present invention is to provide a configuration attached to a probe, that is, a cover for an ultrasonic diagnostic device capable of suppressing the movement of a probe cover body or a puncture guide with respect to the probe, and a bracket for the ultrasonic diagnostic device. There is.

The cover for an ultrasonic diagnostic apparatus of the present invention is one end side of the casing in the main body of the ultrasonic diagnostic apparatus in which a probe having a sensor for receiving the ultrasonic waves reflected by the test portion is arranged at one end in a predetermined direction of the casing. A cover for an ultrasonic diagnostic apparatus to be put on a portion, a probe cover body formed in a bag shape so as to be put on at least one end side portion of the casing, and the casing so as to be put on the probe cover body. The bracket comprises a bracket mounted on the one end side portion of the casing, and the bracket has a plurality of bracket side engaging portions capable of engaging with each of the plurality of casing side engaging portions formed in the casing. The probe cover body also covers the plurality of casing-side engaging portions in a state of being covered with one end side portion of the casing, and the plurality of bracket-side engaging portions are the plurality of casing-side engaging portions. With the probe cover body interposed between the probe cover body and the casing side engaging portion, the probe cover body is engaged with the casing side engaging portion.

According to the present invention, when the bracket is attached to the one end side portion of the casing with the probe cover body covered on one end side portion of the casing, the probe cover body can be sandwiched between the casing side engaging portion and the bracket side engaging portion. it can. As a result, it is possible to prevent the probe cover body from shifting.

The bracket for the ultrasonic diagnostic apparatus of the present invention is the one end side of the casing in the ultrasonic diagnostic apparatus in which a probe having a sensor for receiving the ultrasonic waves reflected by the test portion is arranged at one end in a predetermined direction of the casing. A bracket for an ultrasonic diagnostic apparatus that covers a portion, and is a puncture guide that guides a bracket body that covers at least one end side portion of the casing and a needle of a needle assembly provided on the bracket body and for puncturing. And a plurality of bracket-side fitting portions that are associated with and can be fitted to each of the plurality of casing-side fitting portions formed on the casing, and the casing-side fitting portion includes the fitting convex portion and the fitting convex portion. Corresponding to the fact that one of the fitting holes is formed, the bracket-side fitting portion corresponding to the casing-side fitting portion is of the fitting convex portion and the fitting hole portion. The fitting convex portion is fitted to the fitting hole portion, at least the outer peripheral edge of the tip is R-chafted over the entire circumference in the circumferential direction, and the fitting hole portion is the fitting hole portion. It has a support surface to which the outer peripheral edge of at least the tip of the convex portion is abutted, and the support surface is concavely rounded to match the shape of the outer peripheral edge of at least the tip of the fitting convex portion. is there.

According to the above configuration, the fitting convex portion can be centered only by fitting the fitting convex portion into the fitting hole portion and pressing the outer peripheral edge of the tip of the fitting convex portion. By centering the plurality of fitting protrusions, the bracket can be positioned with respect to the casing, and it is possible to prevent the bracket from shifting with respect to the casing during operation or the like. That is, it is possible to prevent the puncture guide from shaking with respect to the casing.

According to the present invention, it is possible to suppress the configuration attached to the probe, that is, the probe cover body or the puncture guide from moving with respect to the probe.

It is a perspective view of the guided ultrasonic diagnostic apparatus of 1st Embodiment of this invention seen from obliquely above. It is an exploded view which shows the state which the bracket and the probe cover body were removed from the ultrasonic diagnostic apparatus of FIG. It is a perspective view which shows the bracket of FIG. It is a partial cross-sectional view of the bracket of the guided ultrasonic diagnostic apparatus of FIG. 1 cut along a virtual plane parallel to the paper surface. FIG. 5 is an enlarged cross-sectional view showing an enlarged portion of region X in FIG. FIG. 3 is a left side view showing a state in which the needle assembly is inserted into the puncture guide in the guided ultrasonic diagnostic apparatus of FIG. It is a perspective view of the guided ultrasonic diagnostic apparatus of 2nd Embodiment seen from obliquely above. FIG. 5 is an enlarged cross-sectional view showing another shape of the fitting convex portion shown in FIG.

Hereinafter, the guided ultrasonic diagnostic apparatus 1 and 1A according to the first and second embodiments according to the present invention will be described with reference to the drawings. The concept of the direction used in the following description is used for convenience in the explanation, and does not limit the direction of the configuration of the invention to that direction. Further, the guided ultrasonic diagnostic apparatus 1, 1A described below is only one embodiment of the present invention. Therefore, the present invention is not limited to the embodiment, and can be added, deleted, or changed without departing from the spirit of the invention.

[First Embodiment]
The guided ultrasonic diagnostic apparatus 1 shown in FIG. 1 is used when puncturing a needle or the like while visualizing a blood vessel or the like under the skin. As shown in FIG. 2, the ultrasonic diagnostic apparatus 2 and ultrasonic waves are used. It is provided with a cover 3 for a diagnostic device. Hereinafter, an example of the configuration of the ultrasonic diagnostic apparatus 2 and the cover 3 will be described.

<Ultrasonic diagnostic equipment>
The ultrasonic diagnostic apparatus 2 oscillates ultrasonic waves to the test portion (that is, subcutaneous tissue) while being applied to the body surface, and receives the ultrasonic waves (that is, reflected waves) reflected by the test portion. .. Further, the ultrasonic diagnostic apparatus 2 performs image processing based on the received reflected wave and projects a cross section of the part to be inspected. The ultrasonic diagnostic apparatus 2 having such a function has a casing 11, a probe 12, and a monitor 13 as shown in FIG. The casing 11 is made of a synthetic resin such as polycarbonate, ABS (acrylonitrile / butadiene / styrene) resin, SAS (silicon / acrylonitrile / styrene), and polypropylene, and is a box body having a substantially rectangular shape and a flat cross section when viewed from the front. .. Further, the tip end side portion 11a, which is the lower end portion (that is, one end side portion) of the casing 11, is formed in a trapezoidal shape that tapers toward the tip end 11b, and the probe 12 is arranged at the tip end 11b of the casing 11. That is, the ultrasonic diagnostic apparatus 2 has a probe 12 at its tip 2a. Further, the casing 11 is curved so as to warp rearward in the intermediate portion, and is tilted rearward from the curved portion 11c to the proximal end side portion. Further, a monitor 13 is arranged on the front surface 11e of the casing 11, and the monitor 13 projects an image. Hereinafter, the probe 12 and the monitor 13 will be described in more detail.

The probe 12 is configured to transmit and receive ultrasonic waves, and has a sensor 12a. The sensor 12a is composed of, for example, a vibrator such as a piezoelectric element and an acoustic lens. As shown in FIGS. 2 and 3, the sensor 12a configured in this way is attached so as to be embedded in the tip end side portion 11a of the casing 11, and the casing 11 is flush with the tip end 11b at its lower end surface. It is located in. Further, the sensor 12a is connected to a control device (not shown) housed in the casing 11 and oscillates ultrasonic waves in response to a command from the control device. Further, the sensor 12a receives the reflected wave reflected by the test unit and outputs a signal corresponding to the received ultrasonic wave to the control device. That is, the vibrator of the sensor 12a vibrates by the reflected wave reflected by the test portion, and a signal corresponding to the vibration is output to the control device. The control device has an image processing function, performs image processing based on the signal, and outputs image data to the monitor 13.

The monitor 13, which is an example of the image display unit, is, for example, a liquid crystal type monitor and an organic EL type monitor, and is adapted to display an image according to the image data. That is, the monitor 13 is adapted to display an image created based on the reflected wave received by the sensor 12a, for example, a cross section of the test section. The monitor 13 having such a function is arranged on the front surface 11e of the casing 11 as described above. More specifically, the left-right width of the monitor 13 extends from the vicinity of the left end to the vicinity of the right end of the casing 11, and the vertical height extends from the curved portion 11c to the vicinity of the base end in the casing 11.

The ultrasonic diagnostic apparatus 2 configured in this way applies the probe 12 to the body surface of the test portion, and in that state, oscillates ultrasonic waves from the vibrator of the sensor 12a of the probe 12. The oscillated ultrasonic wave is reflected by the test unit, and the reflection is received by the vibrator of the sensor 12a. Then, the vibrator of the sensor 12a vibrates in response to the reflected wave, and the vibrator outputs a signal corresponding to the vibration to the control device. The control device performs image processing based on the signal, whereby the cross section of the test section is displayed on the monitor 13.

The ultrasonic diagnostic apparatus 2 having such a function is used so that the probe 12 is scanned on the body surface of the test portion, but the difference in acoustic impedance between the sensor 12a and the test portion is large. Therefore, if the probe 12 is simply applied to the test portion, the ultrasonic waves oscillated from the sensor 12a will be reflected on the body surface. Therefore, in order to improve the acoustic coupling between the probe 12 and the body surface of the test portion, the ultrasonic diagnostic apparatus 2 is covered with a cover 3 for the ultrasonic diagnostic apparatus.

<Cover for ultrasonic diagnostic equipment>
As described above, the cover 3 for the ultrasonic diagnostic apparatus covers the tip end side portion 11a of the casing 11 and covers the sensor 12a of the probe 12. The cover 3 for an ultrasonic diagnostic apparatus includes a probe cover body 14 and a guided bracket 15. The probe cover body 14 improves the acoustic coupling between the probe 12 and the body surface, and the guided bracket 15 suppresses the displacement of the probe cover body 14. Hereinafter, the probe cover body 14 will be described with reference to FIG.

<Probe cover body>
The probe cover body 14 is formed in a bag shape having a flat cross section, and the outer edge of the probe cover body 14 is roughly U-shaped when viewed from the front. The probe cover body 14 having such an outer shape is closed on the distal end side (that is, the lower side) and has an opening 14a on the proximal end side (upper side). More specifically, the probe cover body 14 is formed to have substantially the same shape as the portion of the casing 11 from the curved portion 11c to the distal end side portion 11a. That is, the distal end side portion 14b of the probe cover body 14 is formed in a trapezoidal shape that tapers toward the distal end in the front view like the distal end side portion 11a of the casing 11, and the proximal end side portion 14c is formed in the distal end side in the front view. It is formed so as to extend straight from the base end side. Further, the inner peripheral surface of the probe cover body 14 is formed to be smaller than the above-mentioned portion of the casing 11.

The probe cover body 14 having such a shape is configured to be stretchable by, for example, an elastomer gel such as a urethane gel, a styrene-based elastomer gel, or a silicone gel. As a result, the opening 14a of the probe cover body 14 can be widened, and by widening the opening 14a, the tip end side portion of the ultrasonic diagnostic apparatus 2, that is, the tip end side portion 11a of the casing 11 can be inserted therein. There is. Further, since the probe cover body 14 can expand not only the opening 14a but also the entire probe cover body 14, the ultrasonic diagnostic apparatus 2 is moved toward the tip side in the probe cover body 14 even after being placed in the probe cover body 14. You can push it forward. When pushed forward, the tip 2a of the ultrasonic diagnostic apparatus 2 (that is, the sensor 12a of the probe 12) eventually hits the bottom surface of the probe cover body 14, and by doing so, the tip side of the curved portion 11c of the casing 11 is probed. It can be stored in the cover body 14. Further, the sensor 12a can be brought into close contact with the probe cover body 14 by further pushing the ultrasonic diagnostic device 2, and the probe cover body 14 can be attached to the ultrasonic diagnostic device 2 in the state of being in close contact with the probe cover body 14. Further, the ultrasonic diagnostic apparatus 2 is equipped with a guided bracket 15 so as to cover the probe cover body 14.

<Bracket with guide>
The guided bracket (hereinafter, simply referred to as “bracket”) 15 presses the probe cover body 14 against the casing 11 so that the probe cover body 14 suppresses the displacement of the probe cover body 14 with respect to the casing 11. The bracket 15 having such a function has a bracket main body 21 and a guide portion 22 as shown in FIG. The bracket main body 21 is a cover-like member that is open vertically and has a substantially trapezoidal shape when viewed from the front, and its inner space is formed according to the outer shape of the tip end side portion 11a of the casing 11. More specifically, the inner space of the bracket body 21 is formed to be slightly larger than the tip end side portion 11a of the casing 11 in the left-right direction and the front-rear direction, and is further covered on the probe cover body 14 that covers the tip end side portion 11a. It is configured so that it can be attached to the tip end side portion 11a. On the other hand, the probe 12 projects downward from the lower end side of the bracket body 21. The bracket body 21 having such a shape is formed with a pair of grooves 21a, 21a on each of the left and right side surfaces.

As shown in FIG. 3, the pair of grooves 21a, 21a are formed so as to extend in the vertical direction, penetrate in the horizontal direction, and are separated in the front-rear direction. The piece 21b is formed. The flexible piece 21b formed in this way extends in the vertical direction and bends in the horizontal direction with its base end portion as a fulcrum. Further, the flexible piece 21b is formed with a fitting hole portion 21c. That is, the bracket main body 21 has a pair of fitting holes 21c and 21c arranged on the left and right sides thereof, respectively. Further, as shown in FIG. 4, the casing 11 is formed with a pair of fitting convex portions 11d and 11d corresponding to the pair of fitting hole portions 21c and 21c, respectively. That is, the fitting convex portions 11d and 11d are formed on the left and right side surfaces of the casing 11, respectively. In FIG. 4, the structure inside the casing 11 is omitted.

Further, a guide groove 21d is formed on the inner surface of each of the flexible pieces 21b and 21b in the left-right direction, and the guide groove 21d extends downward from the upper end of the flexible piece 21b and corresponds to the fitting. It reaches the perforated portion 21c. More specifically, the guide groove 21d has a concave cross section when cut in a virtual plane perpendicular to the vertical direction, and when the guide groove 21d is inserted into the tip end side portion 11a of the casing 11 in the bracket main body 21, the fitting convex portion is eventually formed. The crown portion of 11d enters the guide groove 21d and hits the flexible piece 21b. Further, when the tip end side portion 11a of the casing 11 is pushed downward with respect to the bracket main body 21 from this state, the pair of fitting protrusions 11d and 11d pushes the pair of flexible pieces 21b and 21b outward in the left-right direction. .. As a result, the tip end side portion 11a of the casing 11 can be pushed into the bracket main body 21, and by further pushing the tip end side portion 11a of the casing 11 into the bracket main body 21, the pair of fitting convex portions 11d and 11d will eventually correspond. It reaches the fitting holes 21c and 21c to be fitted. As a result, each of the fitting convex portions 11d and 11d is fitted into the corresponding fitting hole portions 21c and 21c, and the bracket main body 21 is fitted to the casing 11 by fitting. The pair of fitting convex portions 11d and 11d and the pair of fitting hole portions 21c and 21c configured in this way have the following shapes.

That is, as shown in FIG. 5, the pair of fitting convex portions 11d and 11d, which are examples of the casing-side engaging portions, are laterally oriented from the left and right side surfaces (tapered portions) of the tip-side portion 11a of the casing 11. It protrudes outward and diagonally downward (that is, in a direction substantially orthogonal to the side surface). Further, the pair of fitting convex portions 11d and 11d are formed in a substantially spherical shape (in the present embodiment, a substantially hemispherical shape). The pair of fitting protrusions 11d and 11d having such a shape are covered by the probe cover body 14 in a state where the probe cover body 14 is covered on the tip end side portion 11a of the casing 11, and remains covered. It is fitted into the corresponding fitting holes 21c and 21c. Further, the fitting hole portions 21c and 21c are formed so as to correspond to the pair of fitting convex portions 11d and 11d.

That is, the fitting hole portions 21c and 21c, which are examples of the bracket-side engaging portions, are formed on both the left and right sides of the inner peripheral surface of the bracket body 21 (that is, the inner peripheral surfaces of the pair of flexible pieces 21b and 21b). It is outward in the left-right direction, penetrates diagonally downward (that is, in a direction substantially perpendicular to the surfaces on both the left and right sides), and is formed in a substantially spherical shape (in the present embodiment, a substantially spherical segment shape). Further, the fitting hole portions 21c and 21c are formed to be slightly larger than the pair of fitting convex portions 11d and 11d, and the fitting convex portions 11d and 11d in a state where the probe cover body 14 is covered are firmly fitted. It has become like.

Further, the fitting hole portions 21c and 21c are formed in a substantially spherical segment shape as described above, that is, the support surface 21e which is the inner peripheral surface of the fitting hole portions 21c and 21c is formed in a substantially spherical segment shape. .. Therefore, the fitting convex portions 11d and 11d abut against the support surface 21e via the probe cover body 14 in the fitted state, and are supported by the support surface 21e. As described above, the shapes of the fitting holes 21c and 21c are matched to the shapes of the fitting convex portions 11d and 11d, and the shape of the support surface 21e is also matched to the outer surface of the fitting convex portions 11d and 11d. It is roughly formed in a spherical shape. Therefore, by firmly fitting the fitting protrusions 11d and 11d into the fitting holes 21c and 21c, the fitting protrusions 11d and 11d are supported by the entire support surface 21e, whereby the fitting protrusions 11d and 11d are supported. Centered. By centering the fitting protrusions 11d and 11d on both the left and right sides of the casing 11, the casing 11 is positioned in the front-rear direction and the up-down direction, and the movement in those directions is suppressed. The bracket main body 21 having such a function further has a fitting protrusion 21f.

The fitting protrusion 21f is integrally provided on the front surface of the bracket main body 21 (that is, the surface on the same side as the front surface 11e of the casing 11) 21g. The fitting protrusion 21f is arranged at the center in the left-right direction on the front surface 21g of the bracket body 21, and is formed so as to project forward from the front surface 21g of the bracket body 21. A guide portion 22 is fitted to the fitting protrusion portion 21f formed in this way. The guide portion 22 guides the needle 23a to be punctured and determines the puncture direction of the needle 23a when the needle 23a (see FIG. 6 described later) of the needle assembly 23 such as an indwelling needle is punctured into the test portion 30. It is formed in a roughly trapezoidal block shape when viewed from the side.

The guide portion 22 having such a shape has a front end surface 22a forming a predetermined angle α (for example, 20 degrees ≦ α ≦ 60 degrees) with respect to the front surface 21 g of the bracket main body 21, and the guide portion 22 has a predetermined angle α (for example, 20 degrees ≦ α ≦ 60 degrees). The front end surface 22a is formed so as to be tilted with respect to the front surface 21g of the bracket main body 21. Further, on the front end surface 22a, a guide hole forming portion 22b is formed at a central portion thereof in the left-right direction. The guide hole forming portion 22b protrudes from the front end surface 22a in a direction orthogonal to the front end surface 22a and extends obliquely forward and upward along the front end surface 22a. Further, the cross section of the guide hole forming portion 22b (that is, the cross section orthogonal to the front end surface 22a) is formed in a substantially semicircular shape, and the guide hole 22c is formed in the guide hole forming portion 22b along the axis thereof. .. As a result, the guide portion 22 is formed with a guide hole 22c extending diagonally upward in the front direction. The guide hole 22c penetrates the guide portion 22 diagonally upward and forward, and the needle 23a of the needle assembly 23 can be inserted from above the guide hole 22c so that the needle tip 23b can be ejected from below. Further, the guide hole forming portion 22b is further formed with an outlet 22d on the peripheral surface.

As shown in FIG. 3, the outlet 22d is a peripheral surface of the guide hole forming portion 22b that opens forward (that is, the side opposite to the ultrasonic diagnostic apparatus 2 side) and is the left and right central portion (that is, the most) in the front view. It is formed in the part that protrudes forward). Further, the take-out port 22d extends along the central axis L1 of the guide hole 22c, and extends straight from the upper end to the lower end in the guide hole forming portion 22b. Further, the guide portion 22 is capable of bending the guide hole forming portion 22b, and pulls the needle 23a inserted into the guide hole 22c toward the take-out port 22d (or pulls the guide bracket 15 toward the needle 23a). When it is moved away from (that is, moved to the rear side), the take-out port 22d is widened so that the needle 23a can be pulled out from there.

[About puncture work]
In the guided ultrasonic diagnostic apparatus 1 configured in this way, the probe cover body 14 is first covered with the tip end side portion 11a of the casing 11. After covering the probe cover body 14 without bending, the bracket 15 is further attached to the tip end side portion 11a from above. That is, the tip end side portion 11a of the casing 11 is inserted into the bracket main body 21 through the upper opening of the bracket main body 21. Then, each of the pair of fitting protrusions 11d and 11d of the casing 11 enters the corresponding guide grooves 21d and 21d, and eventually hits the flexible pieces 21b and 21b. By pushing the tip end side portion 11a of the casing 11 into the bracket main body 21, the flexible pieces 21b and 21b are bent so as to be pushed outward by the fitting convex portions 11d and 11d, and the fitting convex portions 11d and 11d are eventually bent. It fits into the fitting holes 21c and 21c. That is, the fitting convex portions 11d and 11d are fitted into the fitting hole portions 21c and 21c together with the probe cover body 14 to be covered therein. As a result, the probe cover body 14 is sandwiched between the fitting convex portions 11d and 11d and the fitting hole portions 21c and 21c, and it is possible to prevent the probe cover body 14 from being displaced with respect to the casing 11.

Further, in the bracket 15, the pair of flexible pieces 21b and 21b elastically return inward in the left-right direction by fitting the fitting protrusions 11d and 11d into the fitting holes 21c and 21c. As a result, the fitting convex portions 11d and 11d are sandwiched by the pair of flexible pieces 21b and 21b via the probe cover body 14, and are pressed against the support surfaces 21e of the fitting hole portions 21c and 21c. As a result, the casing 11 is positioned in the left-right direction, and the movement in the left-right direction is restricted. Further, the fitting protrusions 11d and 11d are pressed against the support surfaces 21e of the fitting holes 21c and 21c, so that the fitting protrusions 11d and 11d are centered by the support surfaces 21e. In the casing 11 of the present embodiment, since the fitting protrusions 11d and 11d are centered by the support surface 21e, the casing 11 is positioned in the bracket 15 in the front-rear direction and the up-down direction, and movement in those directions is suppressed. Will be done.

Unlike the case of the present embodiment, when the fitting holes 21c and 21c do not have the support surface 21e (that is, the fitting holes 21c and 21c are formed in a substantially columnar shape), the fitting convex portion Depending on the thickness of the probe cover body 14 interposed between the fitting holes 11d and 11d and the fitting holes 21c and 21c, play may occur between the fitting protrusions 11d and 11d and the fitting holes 21c and 21c. is there. However, in the bracket 15 of the present embodiment, as described above, blurring (that is, movement) in the left-right direction, the front-back direction, and the up-down direction with respect to the tip end side portion 11a of the casing 11 is suppressed, and as a result, the guide of the bracket 15 is suppressed. The blurring of the portion 22 can also be suppressed.

After mounting, the probe 12 is pressed against the body surface, whereby the cross section of the test portion 30 is projected on the monitor 13. In addition, in order to improve the acoustic coupling between the probe 12 and the body surface at this time, a liquid gel such as an echo gel may be applied to the body surface of the test portion. After the application, the user searches for the position of the blood vessel 31 while observing the cross section of the test portion 30 projected on the monitor 13, and when the position of the blood vessel 31 is confirmed, the needle 23a of the needle assembly 23 is inserted into the guide hole 22c. insert. After insertion, the user pushes in the needle assembly 23, the needle 23a is guided by the guide hole 22c, and the needle tip 23b advances toward the blood vessel 31. Further, by pushing in, the needle tip 23b is punctured into the blood vessel 31, and the state can be confirmed by the monitor 13.

When it is confirmed that the needle tip 23b has been punctured in the blood vessel 31, the needle assembly 23 is placed at the pushed position, and then the needle 23a of the needle assembly 23 is pulled out from the guide hole 22c. That is, the needle 23a is pulled out from the guide hole 22c via the take-out port 22d by tilting the ultrasonic diagnostic apparatus 2 rearward so as to separate it from the needle assembly 23. In this way, the needle assembly 23 can be indwelled at that position even after the needle 23a is pulled out from the guide hole 22c, and subsequent treatments (for example, treatments such as dialysis, liquid injection, and blood sampling) can be performed. it can.

In the guided ultrasonic diagnostic apparatus 1 configured in this way, as described above, since the blurring of the guide portion 22 of the bracket 15 is suppressed, the needle 23a can be guided in a predetermined direction. As a result, the needle tip 23b can be punctured at a desired position not only in the left-right front-back direction but also in the up-down direction, and the blood vessel 31 or the like can be accurately punctured.

Further, in the guided ultrasonic diagnostic apparatus 1, the probe cover body 14 is configured to be expandable and contractible, and can be crimped to the probe 12 simply by attaching it to the tip end side portion 11a of the casing 11. As a result, it is possible to prevent the probe cover body 14 from shifting with respect to the casing 11 during scanning. Further, by crimping, it is possible to suppress the generation of a gap between the probe cover body 14 and the probe 12 (more specifically, the sensor 12a). In this way, the occurrence of deviation and the occurrence of gaps can be suppressed, so that the acoustic coupling can be kept good.

Further, when the fitting protrusions 11d and 11d have corners on the outer edge of the tip surface, the probe cover body may be pressed against the corners and torn. On the other hand, in the guided ultrasonic diagnostic apparatus 1, the fitting protrusions 11d and 11d are formed in a substantially hemispherical shape. Therefore, even if the fitting protrusions 11d and 11d are pressed toward the support surface 21e to fit the fitting holes 21c and 21c, the probe cover body 14 interposed between them is not damaged. ..

Further, in the guided ultrasonic diagnostic apparatus 1, after the probe cover body 14 is attached to the tip end side portion 11a of the casing 11, the tip of the casing 11 is pressed by the bracket 15 that covers the bracket 15 on the probe cover body 14. It is attached to the side portion 11a. As a result, the probe cover body 14 is pulled toward the base end side of the casing 11, and the probe cover body 14 can be brought into close contact with the tip end side portion 11a of the casing 11, particularly the sensor 12a located at the tip end 11b. By bringing them into close contact with each other, the acoustic coupling between the probe 12 and the body surface can be kept good.

[Second Embodiment]
The guided ultrasonic diagnostic apparatus 1A of the second embodiment is similar in configuration to the guided ultrasonic diagnostic apparatus 1 of the first embodiment. In the following, the configuration of the guided ultrasonic diagnostic apparatus 1A of the second embodiment will be mainly described as being different from the guided ultrasonic diagnostic apparatus 1 of the first embodiment, and the same configuration will be designated by the same reference numerals. And the explanation is omitted.

The guided ultrasonic diagnostic apparatus 1A of the second embodiment shown in FIG. 7 also punctures a needle or the like while visualizing a blood vessel 31 or the like under the skin, similarly to the guided ultrasonic diagnostic apparatus 1 of the first embodiment. It is used when. In the guided ultrasonic diagnostic apparatus 1A, unlike the guided ultrasonic diagnostic apparatus 1 of the first embodiment, the ultrasonic diagnostic apparatus cover 3A does not have the probe cover body 14. That is, the bracket 15 is directly attached to the tip end side portion 11a of the casing 11.

In the guided ultrasonic diagnostic apparatus 1A configured in this way, the inner peripheral surface of the bracket 15 is formed to have substantially the same dimensions as the tip end side portion 11a of the casing 11, and the pair of fitting convex portions 11d, 11d of the casing 11 Each of the above is also formed to have substantially the same dimensions as the corresponding fitting holes 21c and 21c. Therefore, when the bracket 15 is attached to the tip end side portion 11a of the casing 11, the fitting convex portions 11d and 11d are centered by the fitting hole portions 21c and 21c, and the bracket 15 is centered on the tip end side portion 11a of the casing 11. Positioned. As a result, it is possible to suppress the shake of the guide portion 22 of the bracket 15 at the time of puncture, and the needle tip 23b can be punctured not only in the left-right front-back direction but also in the up-down direction at a desired position, and the blood vessel 31 and the like can be accurately punctured. Can be punctured.

The guided ultrasonic diagnostic apparatus 1A of the second embodiment has the same effects as the guided ultrasonic diagnostic apparatus 1A of the first embodiment.

[Other Embodiments]
In the guided ultrasonic diagnostic apparatus 1 and 1A of the first and second embodiments, it is assumed that the probe 12 and the monitor 13 are integrally formed on the casing 11, but such an apparatus is not necessarily used. Not limited. For example, the guided ultrasonic diagnostic apparatus may be such that only the probe is provided in the casing and the monitor is separately arranged.

Further, in the guided ultrasonic diagnostic apparatus 1 and 1A of the first and second embodiments, the entire probe cover body 14 is made of a gel-like material, but such a structure is not always necessary. For example, only the portion of the probe cover 14 corresponding to the sensor 12a may be composed of a gel-like material having good acoustic coupling, and the remaining portion may be composed of another elastic material. The corresponding portion includes not only the region overlapping the sensor 12a in bottom view but also the periphery of the sensor 12a. As a result, even if the probe cover body 14 is displaced with respect to the casing 11, the state in which the portion made of the gel-like material covers the sensor 12a can be maintained, and the influence on the acoustic coupling can be suppressed. Can be done.

Further, the probe cover body 14 may be a transparent bag body, for example, a plastic bag. In this case, a sheet material made of a gel-like material having good acoustic coupling is attached to the sensor 12a, and the sheet material is fixed to the tip end 11b of the casing 11. Then, the plastic bag is covered so as to cover the entire casing 11 to which the sheet material is attached. Then, the bracket 15 is attached to the tip end side portion 11a of the casing 11 from above the plastic bag. As a result, the plastic bag is sandwiched between the tip end side portion 11a of the casing 11 and the racket 15, and the displacement of the plastic bag with respect to the casing 11 can be suppressed. Further, by covering the entire casing 11 with a plastic bag, it is possible to prevent bacteria and viruses adhering to the surface of the ultrasonic diagnostic apparatus 2 from coming out of the plastic bag, and prevent infection by bacteria and viruses. Can be done. This eliminates the need to clean the ultrasonic diagnostic apparatus 2 each time it is used. Further, in the guided ultrasonic diagnostic apparatus, a cover body made of the gel-like material described above is put on the plastic bag covered on the tip end side portion 11a of the casing 11 to cover between the plastic bag and the bracket 15. The body may intervene.

Further, in the guided ultrasonic diagnostic apparatus 1 and 1A of the first and second embodiments, the guide portion 22 is attached to the bracket main body 21, but if the guidance of the needle 23a is not necessary, the guide portion 22 is not always used. It does not have to be installed. Also. In the guided ultrasonic diagnostic apparatus 1 and 1A of the first and second embodiments, a pair of fitting protrusions 11d and 11d are formed on the casing 11 and a pair of fitting holes 21c and 21c are formed on the bracket 15. However, it does not necessarily have to be configured that way. That is, a pair of fitting protrusions 11d and 11d may be formed on the bracket 15, and a pair of fitting holes 21c and 21c may be formed on the casing 11. Further, the fitting protrusions 11d and 11d may be formed one by one on the bracket 15 and the casing 11, and the fitting holes 21c and 21c may also be formed one by one on the bracket 15 and the casing 11. Further, the number of the fitting convex portions 11d and 11d and the fitting hole portions 21c and 21c is not limited to two, and may be three or more.

Further, the fitting convex portions 11d and 11d do not necessarily have to be formed substantially hemispherically, and may be formed in a columnar shape or a prismatic shape as in the fitting convex portion 11f shown in FIG. 8, for example. In this case, damage to the probe cover body 14 can be suppressed by chamfering the outer peripheral edge of the tip surface in an R manner. Further, with respect to the support surface 21e of the fitting hole portion 21h, the support surface 21e is chamfered in a concave shape according to the shape of the outer peripheral edge of the tip surface of the fitting convex portion 11f, thereby performing the first embodiment and the second embodiment. The fitting convex portion 11f can be centered in the same manner as in the form.

Further, in the guided ultrasonic diagnostic apparatus 1 and 1A of the first embodiment and the second embodiment, the fitting convex portions 11d and 11d are fitted into the fitting holes 21c and 21c, but this is not always the case. It does not have to be a simple configuration. For example, two hook-shaped engaging portions may be engaged with each other so as to be engaged with each other. With such a configuration, the bracket 15 can be attached to the casing 11 and the probe cover body 14 can be sandwiched between the two engaging portions.

1,1A Guided ultrasonic diagnostic device 2 Ultrasonic diagnostic device 2a Tip 3,3A Cover for ultrasonic diagnostic device 11 Casing 11a Tip side part (one end side part)
11d, 11f Fitting convex part (casing side engaging part)
12 Probe 12a Sensor 13 Monitor 14 Probe cover body 15 Guided bracket 21 Bracket body 21c Fitting hole (bracket side engaging part)
21e: Support surface 22 Guide part (puncture guide)
23 needle assembly 23a needle 30 part to be inspected

Claims (7)

A probe having a sensor for receiving ultrasonic waves reflected by the test portion is arranged at one end in a predetermined direction of the casing, and the cross section of the casing intersecting the predetermined direction forms a flat shape having a longitudinal direction and a lateral direction. and, in the ultrasonic diagnostic apparatus main body having a monitor in front of the casing, an ultrasonic diagnostic apparatus cover for covering one end portion of said casing,
A probe cover body formed in a bag shape so as to cover at least one end side portion of the casing, and
A bracket attached to the one end side portion of the casing so as to cover the probe cover body is provided.
The bracket, corresponding to the longitudinal direction of possible each engage with a plurality of casing engagement portion formed on a side surface which is an end portion, a plurality of bracket-side engagement portion of the casing on the side surface of the casing Have in the part to
The probe cover body also covers the plurality of casing-side engaging portions while being covered on one end-side portion of the casing.
The plurality of bracket-side engaging portions are adapted to engage with the casing-side engaging portion with the probe cover body interposed between the plurality of casing-side engaging portions. Cover for diagnostic equipment. The probe cover body is made of a gel-like material in which at least a portion corresponding to the sensor when mounted on the casing is capable of acoustic coupling between the sensor and the test portion, and one end side portion of the casing. The cover for an ultrasonic diagnostic apparatus according to claim 1, which is formed so as to be stretchable for tightening. The casing-side engaging portion is associated with any one of the bracket-side engaging portions formed on either one of the fitting convex portion and the fitting hole portion, and the corresponding bracket-side engaging portion is provided. Is formed on any one of the fitting convex portion and the fitting hole portion so as to be different from the above.
The cover for an ultrasonic diagnostic apparatus according to claim 1 or 2, wherein the fitting convex portion is fitted into the fitting hole portion, and at least the outer peripheral edge of the tip thereof is R-chamfered over the entire circumference in the circumferential direction. .. The bracket further includes a bracket body that covers at least one end side portion of the casing, and a puncture guide that is provided on the bracket body and guides a needle of a needle assembly for puncturing.
The fitting hole portion has a support surface on which at least the outer peripheral edge of the tip of the fitting convex portion is abutted via the probe cover body.
The cover for an ultrasonic diagnostic apparatus according to claim 3, wherein the support surface is R-chamfered in a concave shape according to the shape of the outer peripheral edge of at least the tip of the fitting convex portion. In the ultrasonic diagnostic apparatus main body in which a probe having a sensor for receiving the ultrasonic waves reflected by the test portion is arranged at one end in a predetermined direction of the casing, the cover for the ultrasonic diagnostic apparatus is put on the one end side portion of the casing. There,
A probe cover body formed in a bag shape so as to cover at least one end side portion of the casing, and
A bracket attached to the one end side portion of the casing so as to cover the probe cover body is provided.
The bracket has a plurality of bracket-side engaging portions capable of engaging with each of the plurality of casing-side engaging portions formed on the casing, and the outer peripheral edge of the tip of the bracket-side engaging portion is in the circumferential direction. A fitting hole portion provided with a support surface to which the outer peripheral edge of the tip of the fitting convex portion is abutted corresponding to the casing-side engaging portion composed of the fitting convex portion R-chamfered over the entire circumference. The fitting hole portion has a through hole, and the support surface is provided so as to surround the through hole and is R-chamfered in a concave shape.
The probe cover body also covers the plurality of casing-side engaging portions while being covered on one end-side portion of the casing.
The plurality of bracket-side engaging portions are adapted to engage with the casing-side engaging portion with the probe cover body interposed between the plurality of casing-side engaging portions. Cover for diagnostic equipment. The cover for an ultrasonic diagnostic apparatus according to any one of claims 1 to 5.
It has the casing, the sensor, and an image display unit that displays an image created based on the ultrasonic waves received by the sensor. The sensor is arranged at one end of the casing and the image display unit is the image display unit. An ultrasonic diagnostic apparatus with a cover, which includes an ultrasonic diagnostic apparatus arranged on the other end side of the casing. A probe having a sensor for receiving ultrasonic waves reflected by the test portion is arranged at one end in a predetermined direction of the casing, and the cross section of the casing intersecting the predetermined direction forms a flat shape having a longitudinal direction and a lateral direction. However, in the main body of the ultrasonic diagnostic apparatus having a monitor on the front surface of the casing, it is a bracket for the ultrasonic diagnostic apparatus that is put on one end side portion of the casing.
A bracket body that directly covers at least one end of the casing,
A puncture guide provided on the bracket body and guiding the needle of the needle assembly for puncturing,
A plurality of portions provided on a portion of the casing corresponding to the side surface, which can be associated with and can be fitted to each of the plurality of casing-side fitting portions formed on the side surface of the casing in the longitudinal direction . With a bracket side fitting,
Corresponding to the case where the casing-side fitting portion is formed on either one of the fitting convex portion and the fitting hole portion, the bracket-side fitting portion corresponding to the casing-side fitting portion is described as described above. Formed on the other of the fitting protrusion and the fitting hole,
The fitting convex portion is fitted into the fitting hole portion, and at least the outer peripheral edge of the tip is R-chamfered over the entire circumference in the circumferential direction.
The fitting hole portion has a support surface to which at least the outer peripheral edge of the tip of the fitting convex portion is abutted.
A bracket for an ultrasonic diagnostic apparatus in which the support surface is concavely chamfered to match the shape of the outer peripheral edge of at least the tip of the fitting convex portion.

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