JP2005192915A - Paracentesis adapter, and ultrasonic probe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paracentesis adapter which can secure convenience without trouble of differently using a plurality of needle guides and normally position the center axis of a paracentesis needle at a prescribed position regardless of the thickness of the paracentesis needle to be used, and to provide an ultrasonic probe including the adapter. <P>SOLUTION: A plurality of groove parts 1Ab to 1Ad of a paracentesis needle holding member 1Aa have individually a shape with an angle and depth adjusted therein so as to obtain the mutually identical positions concerning the positions of the center axis of the paracentesis needle (specifically, the position of the ultrasonic probe 10 in the ultrasonic wave scanning direction A when the probe 10 is mounted on a mounting mechanism part 1AB, and the position in a direction B orthogonally crossing with the direction A) in the case that the paracentesis needle having a thickness corresponding to each groove part is held between the groove part and the pressing surface 1Ag of a pressing member 1Ah energized relative to the groove part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a puncture adapter for holding a puncture needle in a predetermined position and an ultrasonic probe including the puncture adapter.

  Conventionally, when performing puncture under an ultrasound image, the puncture adapter is attached to an ultrasonic probe, the puncture needle is inserted at a predetermined angle with respect to the living body, and the insertion path is superfluous. It has a role to hold this so as to be positioned on the sound wave section image.

  In puncturing using such a puncture adapter, the operator inserts this into the affected area while confirming the insertion position of the puncture needle inserted into the living body on the ultrasonic cross-sectional image, and the tissue Collection and drug injection can be performed.

  Here, the specific configuration of the puncture adapter will be described mainly by the following two types.

(A) For example, an adapter base in which a V-shaped needle groove is formed and a V-shaped needle presser protruding in accordance with the shape of the needle groove, and the puncture needle is a needle with respect to the needle groove of the adapter base A puncture adapter of a type that is held by being pressed by a presser (for example, see Patent Document 1).
(B) For example, a rectangular parallelepiped needle guide provided corresponding to each of the thicknesses of a plurality of types of puncture needles and having a needle groove corresponding to the thickness of one puncture needle on the outer surface; A puncture device comprising a needle guide holder that is held on the remaining outer surface excluding the needle groove forming surface, and a needle presser door that holds the needle groove forming surface of the needle guide held by the needle guide holder in an openable and closable manner. A puncture adapter of a type that is selected according to the thickness of the needle and is held by pressing the puncture needle to be used against the needle groove of the needle guide held by the needle guide holder with a needle presser door (for example, patent Reference 2).

Japanese Unexamined Patent Publication No. 4-180740 ([Example] 1st to 23rd paragraphs, FIGS. 1 to 3 and FIG. 5) Japanese Patent Laid-Open No. 11-128237 (paragraphs [0021]-[0026], FIGS. 4 to 6)

  However, the two types of puncture adapters described above have various problems that arise when using different types of puncture needles.

  For example, in the puncture adapter of the type described in (a), as shown in FIG. 9A, a V-shaped needle groove 101A formed in the ultrasonic scanning direction A of the ultrasonic probe 103 of the adapter base 100A is provided. On the other hand, when the puncture needles Na and Nb of various thicknesses are pressed by the needle presser 102A, a positional deviation amount δ is generated in the central axes Ca and Cb of the puncture needle due to the thickness of the puncture needles Na and Nb. In the ultrasonic diagnostic imaging apparatus, the puncture guide displayed on the ultrasonic cross-sectional image (the guideline indicating the puncture route of the puncture needle with respect to the living body) and the actually displayed images of the puncture needles Na and Nb. There is a problem that a misalignment (approximately misalignment amount δ) occurs. As shown in FIG. 9B, when the direction in which the V-shaped needle groove 101B is formed in the adapter base 100B is a direction B orthogonal to the ultrasonic scanning direction A of the ultrasonic probe 103, Due to the displacement of the central axes Ca and Cb of the puncture needles Na and Nb described above, the insertion path of the puncture needles Na and Nb is displaced from the ultrasonic scanning surface of the ultrasonic probe 103 by about the positional displacement amount δ, and the ultrasonic wave There is a problem that the drawability of the images of the puncture needles Na and Nb displayed in the ultrasonic image is lowered in the diagnostic imaging apparatus.

  For example, in the type of puncture guide described in (b), when using puncture needles of various thicknesses, the puncture needle can be selected and used according to the thickness of the puncture needle. There is no misalignment in the central axis of the lens, and the above-mentioned problems do not occur, but there is a problem in that it is not convenient to use a plurality of needle guides depending on the thickness of the puncture needle to be used. .

  The present invention has been made in view of the above-described problems, and an object of the present invention is to ensure convenience without using a plurality of needle guides properly, and to increase the thickness of a puncture needle to be used. It is an object of the present invention to provide a puncture adapter that can always position the central axis of a puncture needle at a predetermined position, and an ultrasonic probe including the same.

  In order to solve the above problems, the invention according to claim 1 is a puncture needle holding member having a plurality of groove portions arranged in a predetermined direction and formed according to the thickness of each of a plurality of types of puncture needles, A support member that supports the puncture needle holding member so as to be movable in the predetermined direction, and the puncture needle holding member is fixed so that any one of the plurality of grooves is located at a predetermined position in the predetermined direction. A holding member for pressing and pressing a puncture needle having a thickness corresponding to the groove portion against the groove portion fixed at a predetermined position in the predetermined direction, and each of the plurality of groove portions When the puncture needle having a thickness corresponding to the groove portion is applied to the groove portion by the pressing member, the center axis of the puncture needle has a shape that is the same position. Yes.

  In order to solve the above-mentioned problem, the invention according to claim 2 is the puncture adapter according to claim 1, wherein the puncture needle holding member has a flat surface portion in the predetermined direction of the flat surface portion. The plurality of grooves are formed.

  In order to solve the above-mentioned problem, a third aspect of the present invention is the puncture adapter according to the first aspect, wherein the puncture needle holding member has a cylindrical shape, and the circumferential direction of the circumferential surface portion thereof The plurality of groove portions are arranged and formed.

  In order to solve the above-described problem, the invention according to claim 4 is the puncture adapter according to claim 3, wherein the pressing member has a cylindrical shape, and the puncture adapter is formed at a predetermined position on a circumferential surface thereof. When a plurality of groove portions corresponding to each of the plurality of groove portions formed on the circumferential surface of the needle holding member are formed and the puncture needle holding member rotates and moves in the circumferential direction thereof, in conjunction with this, An interlocking mechanism for rotating the presser member in its circumferential direction is provided.

  In order to solve the above-mentioned problem, the invention according to claim 5 is the puncture adapter according to any one of claims 1 to 4, wherein the puncture needle holding member is formed of the plurality of grooves. The present invention is characterized in that it has a thickness clarification portion that clearly indicates the thickness of the puncture needle corresponding to each of the puncture needles at the groove portion or in the vicinity thereof.

  In order to solve the above-described problem, the invention according to claim 6 is an inclined surface having an inclination corresponding to the thickness of a plurality of types of puncture needles with respect to a predetermined direction, and the plurality of puncture needles of the inclined surface. A puncture needle holding member having a position indicating portion that clearly indicates the position of the inclined surface corresponding to each thickness at the inclined surface or in the vicinity thereof, and supports the puncture needle holding member movably in the predetermined direction A support member, a fixing member for fixing the puncture needle holding member so that any one of the plurality of inclined surface positions is located at a predetermined position in the predetermined direction, and A pressing member for pressing the puncture needle having a thickness corresponding to the inclined surface with respect to the inclined surface of the inclined surface position positioned at a predetermined position, and the inclined surface position at the inclined surface position The pressing member on the inclined surface When applying a puncture needle thickness corresponding to the slope position, the position of the center axis of the puncture needle is characterized in that it is provided at a position such that the same position.

  In order to solve the above-mentioned problem, the invention according to claim 7 is the puncture adapter according to claim 6, wherein the puncture needle holding member is a puncture needle corresponding to each of the plurality of inclined surface positions. It is characterized by having a thickness clarification part that clearly indicates the thickness at the position of the inclined surface or the vicinity thereof.

  In order to solve the above-mentioned problem, the invention according to claim 8 is the puncture adapter according to claim 6 or claim 7, wherein the inclined surface is arranged in the predetermined direction and the plurality of inclined surface positions. And a recess for applying a puncture needle having a thickness corresponding to the position of the inclined surface.

  In order to solve the above-mentioned problem, the invention according to claim 9 is characterized in that a puncture needle holding member having a plurality of step surfaces arranged in a predetermined direction and having a plurality of step surfaces according to the thickness of each of the plurality of types of puncture needles, and the puncture needle The puncture needle holding member is fixed such that the holding member is movably supported in the predetermined direction, and any one of the plurality of step surfaces is located at a predetermined position in the predetermined direction. A plurality of step surfaces, and a fixing member for pressing and pressing a puncture needle having a thickness corresponding to the step surface against a step surface located at a predetermined position in the predetermined direction. Each has a step so that the center axis of the puncture needle has the same position when a puncture needle having a thickness corresponding to the step surface is applied to the step surface by the pressing member. It is characterized by being.

  In order to solve the above-mentioned problem, the invention described in claim 10 is the puncture adapter according to claim 9, wherein the puncture needle holding member is a thick puncture needle corresponding to each of the plurality of step surfaces. It is characterized by having a thickness clarification part that clearly indicates the thickness at the step surface or the vicinity thereof.

  In order to solve the above-described problem, the invention described in claim 11 is the puncture adapter according to claim 9 or claim 10, wherein each of the plurality of step surfaces has a thickness corresponding to the step surface. It is characterized by having a recess for applying the puncture needle.

  In order to solve the above-described problem, the invention described in claim 12 is characterized by including the puncture adapter according to any one of claims 1 to 11.

  In order to solve the above-described problem, the invention described in claim 13 is the ultrasonic probe according to claim 12, wherein the predetermined direction is an ultrasonic scanning direction of the ultrasonic probe or the ultrasonic scanning direction. The puncture adapter is provided so as to be orthogonal to each other.

  In order to solve the above-mentioned problem, the invention according to claim 14 is the ultrasonic probe according to claim 12 or claim 13, wherein the predetermined position includes an ultrasonic scanning surface of the ultrasonic probe. It is characterized by the intersection with the surface.

  According to the invention of any one of claims 1 to 4, the puncture needle holding member has a plurality of grooves formed according to the thickness of each of the plurality of types of puncture needles. Therefore, the convenience can be ensured without using a plurality of needle guides according to the thickness of the puncture needle to be used. In addition, when each of the plurality of grooves of the puncture needle holding member hits the groove with a puncture needle having a thickness corresponding to the groove by the pressing member, the positions of the central axes of the puncture needle are the same as each other. Therefore, there is no positional deviation in the central axis of the puncture needle due to the thickness of the puncture needle, and the ultrasonic wave of the ultrasonic probe provided with the puncture adapter is arranged in the arrangement direction of the plurality of grooves. When positioned in the scanning direction, in the ultrasonic diagnostic imaging apparatus, to solve the problem of causing a parallel shift between the puncture guide displayed on the ultrasonic cross-sectional image and the actually displayed puncture needle image Can do. In addition, when the arrangement direction of the plurality of grooves is positioned in a direction orthogonal to the ultrasonic scanning direction of the ultrasonic probe provided with the puncture adapter, the puncture displayed in the ultrasonic image in the ultrasonic diagnostic imaging apparatus It is possible to solve the problem that the drawing performance of the needle image is lowered.

  Further, according to the invention of claim 5, since the puncture needle holding member has a thickness clarification portion that clearly indicates the thickness of the puncture needle corresponding to each of the plurality of groove portions at the groove portion or a vicinity thereof, The operator can easily identify the groove corresponding to the thickness of the puncture needle to be used.

  Further, according to the invention described in claim 6, since the plurality of inclined surface positions are provided on the inclined surface of the puncture needle holding member according to the thickness of each of the plurality of types of puncture needles. The convenience can be ensured without using a plurality of needle guides according to the thickness of the puncture needle. Each of the plurality of inclined surface positions has the same central axis position when the puncture needle having a thickness corresponding to the inclined surface position is applied to the inclined surface at the inclined surface position by a pressing member. The position of the center of the puncture needle does not shift due to the thickness of the puncture needle, and the arrangement direction of the plurality of grooves is an ultrasonic probe provided with the puncture adapter. In the ultrasonic scanning direction, there is a problem that a parallel deviation occurs between the puncture guide displayed on the ultrasonic cross-sectional image and the actually displayed puncture needle image in the ultrasonic diagnostic imaging apparatus. Can be resolved. In addition, when the arrangement direction of the plurality of grooves is positioned in a direction orthogonal to the ultrasonic scanning direction of the ultrasonic probe provided with the puncture adapter, the puncture displayed in the ultrasonic image in the ultrasonic diagnostic imaging apparatus It is possible to solve the problem that the drawing performance of the needle image is lowered.

  According to the seventh aspect of the invention, the puncture needle holding member clearly indicates the thickness of the puncture needle corresponding to each of the plurality of inclined surface positions at the inclined surface position or in the vicinity thereof. Therefore, the operator can easily identify the inclined surface position corresponding to the thickness of the puncture needle to be used.

  According to the invention described in claim 8, since the inclined surface has a recess for applying a puncture needle having a thickness corresponding to each of the plurality of inclined surface positions and having a thickness corresponding to the inclined surface position. The operator can easily define the puncture needle to be used at the inclined surface position corresponding to its thickness.

  According to the invention of claim 9, since the plurality of step surfaces of the puncture needle holding member are provided according to the thickness of each of the plurality of types of puncture needles, the thickness of the puncture needle to be used Therefore, it is possible to ensure the convenience without using a plurality of needle guides properly. In addition, when each of the plurality of step surfaces of the puncture needle holding member contacts the step surface with a puncture needle having a thickness corresponding to the step surface by the pressing member, the positions of the central axes of the puncture needle are the same as each other Therefore, the thickness of the puncture needle does not cause a positional shift in the ultrasonic scanning direction of the ultrasonic probe due to the thickness of the puncture needle. When the ultrasonic probe having the puncture adapter is positioned in the ultrasonic scanning direction, the puncture guide displayed on the ultrasonic cross-sectional image and the image of the puncture needle actually displayed in the ultrasonic diagnostic imaging apparatus It is possible to solve the problem that the parallel displacement occurs. In addition, when the arrangement direction of the plurality of grooves is positioned in a direction orthogonal to the ultrasonic scanning direction of the ultrasonic probe provided with the puncture adapter, the puncture displayed in the ultrasonic image in the ultrasonic diagnostic imaging apparatus It is possible to solve the problem that the drawing performance of the needle image is lowered.

  According to the invention described in claim 10, the puncture needle holding member has a thickness indicating portion that clearly indicates the thickness of the puncture needle corresponding to each of the plurality of step surfaces at the step surface or in the vicinity thereof. Therefore, the operator can easily identify the step surface corresponding to the thickness of the puncture needle to be used.

  According to the eleventh aspect of the present invention, since each of the plurality of step surfaces has a recess for applying a puncture needle having a thickness corresponding to the step surface, the operator can use the puncture easily. A needle can be defined on the step surface corresponding to its thickness.

  According to the invention described in claim 12, it is possible to provide an ultrasonic probe capable of obtaining the effect of the puncture adapter described above.

  According to the invention of claim 13, the puncture adapter described above is provided so that the predetermined direction is the ultrasonic scanning direction of the ultrasonic probe or the direction orthogonal to the ultrasonic scanning direction. When the predetermined direction is the ultrasonic scanning direction of the ultrasonic probe, a positional deviation occurs in the central axis of the puncture needle held by the puncture needle holding member with respect to the direction orthogonal to the ultrasonic scanning direction of the ultrasonic probe. In the ultrasonic diagnostic imaging apparatus, it is possible to solve the problem that a parallel shift occurs between the puncture guide displayed on the ultrasonic cross-sectional image and the actually displayed puncture needle image. In addition, when the predetermined direction is a direction orthogonal to the ultrasonic scanning direction of the ultrasonic probe, a positional shift in the scanning direction of the ultrasonic probe occurs on the central axis of the puncture needle held by the puncture needle holding member. The puncture needle is defined as the surface including the ultrasonic scanning surface of the ultrasonic probe by setting the predetermined position as the surface including the ultrasonic scanning surface of the ultrasonic probe, and the ultrasonic image diagnosis apparatus uses the ultrasonic image. It is possible to solve the problem that the drawability of the image of the puncture needle displayed inside is lowered.

  According to the fourteenth aspect of the present invention, since the puncture needle is defined on the surface including the ultrasonic scanning surface of the ultrasonic probe, it is displayed in the ultrasonic image in the ultrasonic diagnostic imaging apparatus. It is possible to solve the problem that the drawing performance of the image of the puncture needle is lowered.

  Hereinafter, various embodiments of a puncture adapter according to the present invention and an ultrasonic probe including the same will be described in detail with reference to the drawings.

  In FIG. 1, the perspective view showing the whole structure of the puncture adapter in a present Example is shown. As shown in FIG. 1, the puncture adapter 1 </ b> A mainly includes a puncture needle holding mechanism 1 </ b> AA for holding a puncture needle, and an attachment capable of attaching the puncture needle holding mechanism 1 </ b> AA to the ultrasonic probe 10. It is provided between the mechanism unit 1AB, the puncture needle holding mechanism unit 1AA, and the mounting mechanism unit 1AB. The puncture needle holding mechanism unit 1AA is rotationally moved on a plane including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting unit. It is comprised from the rotation support mechanism part 1AC supported so that it is possible.

  The mounting mechanism 1AB includes a holding member 1ABa that holds the side surface of the ultrasonic probe 10 from three directions, a presser door 1ABb that presses the side surface of the ultrasonic probe 10 held by the holding member 1ABa from the remaining one direction, The ultrasonic probe 10 is held between the holding member 1ABa and the holding door 1ABb, and the fixing member 1ABc is used to fix the holding door 1ABb to the holding member 1ABa.

  With such a configuration, the operator can detachably attach the puncture adapter 1 </ b> A to the ultrasonic probe 10. Incidentally, when the puncture adapter 1A is used to construct a puncture ultrasonic probe, the mounting mechanism 1AB is omitted, and the rotation support mechanism 1AC and the main body case of the ultrasonic probe 10 are configured integrally. good. The ultrasonic probe 10 is a linear type or sector type in which the ultrasonic transducer surface (a surface disposed on the bottom surface of the main body case for scanning by irradiating a living body with ultrasonic waves) has a planar shape. Any of the convex type in which the ultrasonic transducer surface has a curved surface shape may be used.

  The rotation support mechanism portion 1AC is extended from the holding member 1ABa of the mounting mechanism portion 1AB and has a rotation support member 1ACa in which an arc-shaped long hole portion is formed, and an arc-shaped long hole portion formed in the rotation support member 1ACa. And a fixing member 1ACb for fixing the puncture needle holding mechanism 1AA to a desired position on the surface including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting portion.

  With such a configuration, the operator can insert the puncture needle held by the puncture needle holding mechanism 1AA with respect to the ultrasonic scanning surface of the ultrasonic probe 10 having the puncture needle holding mechanism 1AA attached to the mounting portion. Can be adjusted to a desired angle.

  The puncture needle holding mechanism 1AA has a predetermined direction V (specifically, a direction B orthogonal to the ultrasonic scanning direction (A) of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB). The puncture needle holding member 1Aa whose main surface is a flat surface having a plurality of groove portions 1Ab to 1Ad formed according to the thickness of each of a plurality of types of puncture needles, and the puncture needle holding member 1Aa ( A support member 1Ae that supports a plurality of grooves 1Ab to 1Ad so as to be slidable in the arrangement direction V of the plurality of grooves 1Ab to 1Ad (with a guide member (not shown)), and a desired groove of the plurality of grooves 1Ab to 1Ad Specifically, the support member 1Ae is positioned so as to be located at a position intersecting with the surface including the ultrasonic scanning surface of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB. The fixing member 1Af for fixing the supported puncture needle holding member 1Aa and the pressing surface (puncture needle) having a shape corresponding to the groove portion with respect to the groove portion of the puncture needle holding member 1Aa located at the predetermined position described above. And a biasing member 1Ai for biasing the pressing member 1Ah having 1Ag (by a spring member (not shown)). Each of the plurality of grooves 1Ab to 1Ad of the puncture needle holding member 1Aa has a thickness corresponding to the groove between the groove and the pressing surface 1Ag of the pressing member 1Ah biased against the groove. When the needle is held, the angle and depth are adjusted so that the positions of the central axes of the puncture needle are the same.

  FIG. 2A is a top view schematically showing the puncture adapter 1A shown in FIG. As shown in FIG. 2 (A), the plurality of groove portions 1Ab to 1Ad of the puncture needle holding member 1Aa are V-shaped grooves having thicknesses of 14 to 15 [G] and 16 to 18 [G], respectively. It corresponds to puncture needles Na, Nb and Nc of 19 to 22 [G]. That is, the angles and depths of the V-shaped grooves of the plurality of groove portions 1Ab to 1Ad are respectively supported by the V-shaped grooves that support the puncture needles Na, Nb, and Nc according to the size of the radius. The position is adjusted so as to differ by the difference in radius, specifically, adjusted so as to be deeper by the difference in radius of the puncture needles Na, Nb, and Nc. Therefore, after each of the plurality of groove portions 1Ab to 1Ad is positioned at the above-described predetermined position, puncture needles of 14 to 15 [G], 16 to 18 [G], and 19 to 22 [G] corresponding to the groove portions are provided. When Na, Nb, and Nc are urged by the pressing surface 1Ag of the pressing member 1Ah, the positions of the central axes Ca, Cb, and Cc of these puncture needles Na, Nb, and Nc (specifically, the mounting mechanism portion 1AB The position of the ultrasonic probe 10 in the ultrasonic scanning direction A and the position in the direction B perpendicular to the ultrasonic probe 10 when the ultrasonic probe 10 is mounted are all the same. Here, [G] is a unit that defines the thickness of the puncture needle. For example, 14 [G] indicates that the thickness (diameter) of the puncture needle Na is 2.11 [mm]. ing. In consideration of the convenience of the operator, puncture needles Na, Nb, and Nc corresponding to the respective groove portions are provided on the wall surfaces of the plurality of groove portions 1Ab to 1Ad of the puncture needle holding member 1Aa or in the vicinity thereof. It is preferable to clearly indicate the thickness (for example, 14 to 15 [G], 16 to 18 [G], 19 to 22 [G], etc.). Thereby, the operator can identify the groove part corresponding to the thickness of the puncture needle used easily.

  Incidentally, the shape of the grooves 1Ab to 1Ad is not limited to the V shape, and may be, for example, a U shape or an arc shape. In such a case, the diameters of the U-shaped and arc-shaped grooves supporting the puncture needles Na, Nb, and Nc are approximately equal to the thicknesses (diameters) of the puncture needles Na, Nb, and Nc, respectively. And the depth at which the circular portion is formed is made to differ by the difference according to the thickness (diameter) of the puncture needles Na, Nb, Nc (specifically, the puncture needles Na, Nb, Nc) As the thickness (diameter) of the needle increases, the depth at which the circular portion is formed is increased by the difference of the radius), so that the central axes Ca, Cb of the puncture needles Na, Nb, Nc supported by this , Cc (specifically, the position of the ultrasonic probe 10 in the ultrasonic scanning direction A and the position in the direction B perpendicular thereto when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB) Can also be the same. Further, the number of the groove portions 1Ab to 1Ad is not limited to three, and may be other numbers depending on the number of types of puncture needles to be used. In this way, the puncture needle holding member 1Aa has a plurality of grooves formed according to the thickness of each of a plurality of types of puncture needles, so that the operator can make a plurality of puncture needles according to the thickness of the puncture needle to be used. The problem of lack of convenience such as using different needle guides can be solved.

  The puncture needle holding member 1Aa can be fixed to the support member 1Ae by the fixing member 1Af. Specifically, for example, a female screw part is formed on the upper surface of the puncture needle holding member 1Aa, and the male screw part of the fixing member 1Af is screwed into this through a long hole formed in the support member 1Ae. It is set as the structure fixed in the state which located the groove part in the predetermined position mentioned above. In view of the convenience of the operator, it is preferable to form the above-described inscription or the like that clearly indicates the predetermined position on the upper surface of the support member 1Ae. Thereby, the operator can align a desired groove part with this easily.

  Incidentally, the configuration of the fixing member 1Af is not limited to the above-described configuration. For example, a female screw portion is formed in the support member 1Ae, and the male screw portion of the fixing member 1Af is screwed into the female screw portion. A configuration may be adopted in which the distal end portion is pressed against the upper surface of the puncture needle holding member 1Aa and the desired groove portion is fixed in a state of being positioned at the predetermined position described above.

  As described above, in the puncture adapter 1A according to the present embodiment, the plurality of grooves 1Ab to 1Ad of the puncture needle holding member 1Aa have shapes corresponding to the puncture needles Na, Nb, and Nc having different thicknesses. ing. That is, when each of the plurality of groove portions 1Ab to 1Ad is positioned at the above-described predetermined position and the puncture needles Na, Nb, and Nc corresponding to the groove portions are urged by the pressing surface 1Ag of the pressing member 1Ah, The positions of the central axes Ca, Cb, Cc of the puncture needles Na, Nb, Nc (specifically, in the ultrasonic scanning direction A of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB) The position and the position in the direction B perpendicular to the position are the same. Therefore, the puncture guide displayed on the ultrasonic cross-sectional image in the ultrasonic diagnostic imaging apparatus does not cause a positional shift of the ultrasonic probe 10 in the ultrasonic scanning direction A on the central axis of the puncture needle due to the thickness of the puncture needle. It is possible to eliminate the problem that a parallel shift between the puncture needle (guideline indicating the puncture route for the living body) and the actually displayed puncture needle image occurs.

  By the way, as shown in FIG. 2B, the arrangement direction V of the plurality of grooves 1Ab to 1Ad of the puncture needle holding member 1Aa is such that the ultrasonic probe 10 is mounted on the mounting mechanism 1AB. When formed in the ultrasonic scanning direction A (by the way, the shape of the support member 1Ae shown in FIG. 4B is slightly different from that in FIG. 1A), the above-described embodiment (ie, Similarly to the case in FIG. 2A, the plurality of groove portions 1Ab to 1Ad of the puncture needle holding member 1Aa have shapes corresponding to the puncture needles Na, Nb, and Nc having different thicknesses. That is, each of the plurality of groove portions 1Ab to 1Ad is placed at a predetermined position (specifically, the pressing member 1Ah in the ultrasonic scanning direction A of the ultrasonic probe 10 when the ultrasonic probe 10 is attached to the attachment mechanism portion 1AB). When the puncture needles Na, Nb, and Nc corresponding to the groove portions are urged by the press surface 1Ag of the presser member 1Ah after being positioned at the pressing surface 1Ag), the puncture needles Na, Nb, and Nc Positions of the central axes Ca, Cb, and Cc (specifically, the position of the ultrasonic probe 10 in the ultrasonic scanning direction A when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB and the direction orthogonal thereto) The positions in (B) are the same. With this configuration, the insertion path of the puncture needle is attached to the attachment mechanism unit 1AB due to a positional shift in the direction B perpendicular to the ultrasonic scanning direction (A) of the ultrasonic probe 10 with respect to the central axis of the puncture needle. It is possible to eliminate the deviation from the ultrasonic scanning surface of the ultrasonic probe 10 that has been performed, and in the ultrasonic diagnostic imaging apparatus, there is a problem that the drawing performance of the puncture needle image displayed in the ultrasonic image is reduced. Can be eliminated.

  In FIG. 3, the perspective view showing the whole structure of the puncture adapter in a present Example is shown. In the following description, components having the same forms as those in FIGS. 1 and 2 described above are denoted by the same reference numerals. As shown in FIG. 3, the puncture adapter 1B is mainly equipped with a puncture needle holding mechanism 1BA for holding a puncture needle, and an attachment capable of attaching the puncture needle holding mechanism 1BA to the ultrasonic probe 10. Provided between the mechanism unit 1AB, the puncture needle holding mechanism unit 1BA, and the mounting mechanism unit 1AB. The puncture needle holding mechanism unit 1BA is rotated and moved on a plane including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting unit. It is comprised from the rotation support mechanism part 1AC supported so that it is possible.

  The mounting mechanism 1AB includes a holding member 1ABa that holds the side surface of the ultrasonic probe 10 from three directions, a presser door 1ABb that presses the side surface of the ultrasonic probe 10 held by the holding member 1ABa from the remaining one direction, The ultrasonic probe 10 is held between the holding member 1ABa and the holding door 1ABb, and the fixing member 1ABc is used to fix the holding door 1ABb to the holding member 1ABa.

  With such a configuration, the operator can detachably attach the puncture adapter 1B to the ultrasonic probe 10. Incidentally, when the puncture adapter 1B is used to configure a puncture ultrasonic probe, the mounting mechanism 1AB is omitted, and the rotation support mechanism 1AC and the main body case of the ultrasonic probe 10 are configured integrally. good. The ultrasonic probe 10 includes a linear type and a sector type in which an ultrasonic transducer surface (a surface disposed on the bottom surface of the main body case for scanning by irradiating a living body with an ultrasonic wave) has a planar shape, Any of the convex type in which the ultrasonic transducer surface has a curved surface shape may be used.

  The rotation support mechanism portion 1AC is extended from the holding member 1ABa of the mounting mechanism portion 1AB and has a rotation support member 1ACa in which an arc-shaped long hole portion is formed, and an arc-shaped long hole portion formed in the rotation support member 1ACa. And a fixing member 1ACb for fixing the puncture needle holding mechanism 1BA to a desired position on the surface including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting portion.

  With this configuration, the operator can insert the puncture needle held by the puncture needle holding mechanism 1BA with respect to the ultrasonic scanning surface of the ultrasonic probe 10 having the puncture needle holding mechanism 1BA attached to the attachment. Can be adjusted to a desired angle.

  The puncture needle holding mechanism 1BA has a predetermined direction V (specifically, a rotation axis located on a surface including the ultrasonic scanning surface of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB). Puncture needle holding member 1Ba including a circumferential surface having a plurality of grooves 1Bb to 1Bd formed in accordance with the thickness of each of a plurality of types of puncture needles arranged in a circumferential direction centered on the puncture needle, and the puncture needle Of the plurality of grooves 1Bb-1Bd of the puncture needle holding member 1Ba and the support member 1Be that supports the holding member 1Ba so as to be able to rotate and move in the arrangement direction V of the plurality of grooves 1Bb-1Bd, the desired groove is a predetermined position (specifically Is a position intersecting with the surface including the ultrasonic scanning surface of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1Bb, and is attached by a pressing surface 1Ag of the pressing member 1Ah described later. The fixing member 1Bf for fixing the puncture needle holding member 1Ba supported by the support member 1Be and the groove portion of the puncture needle holding member 1Ba located at the predetermined position as described above. And a biasing member 1Ai for biasing the pressing member 1Ah having a pressing surface (surface for pressing the puncture needle) 1Ag having a shape corresponding to the groove (by a spring member (not shown)). Each of the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba has a thickness corresponding to the groove between the groove and the pressing surface 1Ag of the pressing member 1Ah biased against the groove. When the needle is held, the angle and depth are adjusted so that the positions of the central axes of the puncture needle are the same.

  FIG. 4A shows a top view schematically showing the puncture adapter 1B shown in FIG. As shown in FIG. 4A, the plurality of groove portions 1Bb to 1Bd of the puncture needle holding member 1Ba are V-shaped grooves, and the thicknesses thereof are 14 to 15 [G], 16 to 18 [G], respectively. It corresponds to puncture needles Na, Nb and Nc of 19 to 22 [G]. That is, the angles and depths of the V-shaped grooves of the plurality of groove portions 1Bb to 1Bd are respectively supported by the V-shaped grooves that support the puncture needles Na, Nb, and Nc according to the size of the radius. The position is adjusted so as to differ by the difference in radius, specifically, adjusted so as to be deeper by the difference in radius of the puncture needles Na, Nb, and Nc. Accordingly, after each of the plurality of groove portions 1Bb to 1Bd is positioned at the above-described predetermined position, puncture needles of 14 to 15 [G], 16 to 18 [G], and 19 to 22 [G] corresponding to the groove portions are provided. When Na, Nb, and Nc are urged by the pressing surface 1Ag of the pressing member 1Ah, the positions of the central axes Ca, Cb, and Cc of the puncture needles Na, Nb, and Nc (specifically, the mounting mechanism 1Bb The position of the ultrasonic probe 10 in the ultrasonic scanning direction A and the position in the direction B perpendicular to the ultrasonic probe 10 when the ultrasonic probe 10 is mounted are all the same. In consideration of the convenience of the operator, puncture needles Na, Nb, and Nc corresponding to the respective groove portions are provided on the wall surfaces of the groove portions 1Bb to 1Bd of the puncture needle holding member 1Ba or in the vicinity thereof. It is preferable to clearly indicate the thickness (for example, 14 to 15 [G], 16 to 18 [G], 19 to 22 [G], etc.). Thereby, the operator can identify the groove part corresponding to the thickness of the puncture needle used easily.

  Incidentally, the shape of the grooves 1Bb to 1Bd is not limited to the V shape, and may be a U shape or an arc shape, for example. In such a case, the diameters of the U-shaped and arc-shaped grooves supporting the puncture needles Na, Nb, and Nc are approximately equal to the thicknesses (diameters) of the puncture needles Na, Nb, and Nc, respectively. And the depth at which the circular portion is formed is made to differ by the difference according to the thickness (diameter) of the puncture needles Na, Nb, Nc (specifically, the puncture needles Na, Nb, Nc) As the thickness (diameter) of the needle increases, the depth at which the circular portion is formed is increased by the difference of the radius), so that the central axes Ca, Cb of the puncture needles Na, Nb, Nc supported by this , Cc (specifically, the position of the ultrasonic probe 10 in the ultrasonic scanning direction A and the position in the direction B perpendicular thereto when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB) Can also be the same. Further, the number of the groove portions 1Bb to 1Bd is not limited to three. For example, eight, specifically, 11 [G], 12 [G], 13 [G], and 14 · 15 [G]. 16 · 17 [G], 18 · 19 [G], 20 · 21 [G], and 22 · 23 [G] puncture needles may be formed (in such a case) For example, on the circumferential surface of the puncture needle holding member 1Ba, eight corresponding groove portions are formed equally in the clockwise direction). As described above, the puncture needle holding member 1Ba has a plurality of groove portions formed according to the thicknesses of the plurality of types of puncture needles, so that the operator can select a plurality of puncture needles according to the thickness of the puncture needle to be used. The problem of lack of convenience such as using different needle guides can be solved.

  Further, the puncture needle holding member 1Ba can be fixed to the support member 1Be by the fixing member 1Bf. Specifically, for example, a female screw portion is formed on the upper surface of the puncture needle holding member 1Ba, and the male screw portion of the fixing member 1Bf is screwed into the female screw portion through a round hole formed in the support member 1Be. It is set as the structure fixed in the state which located the groove part in the predetermined position mentioned above. In view of the convenience of the operator, it is preferable to form the above-described inscription or the like that clearly indicates the predetermined position on the upper surface of the support member 1Be. Thereby, the operator can align a desired groove part with this easily.

  Incidentally, the configuration of the fixing member 1Bf is not limited to the configuration described above. For example, a female screw portion is formed in the support member 1Be, and the male screw portion of the fixing member 1Bf is screwed into the female screw portion. A configuration may be adopted in which the distal end portion is pressed against the upper surface of the puncture needle holding member 1Ba to fix the desired groove portion in a state where it is located at the predetermined position described above. Further, the following configuration may be adopted. For example, a disk-shaped component is provided between the puncture needle holding member 1Ba and the support member 1Be, and the component is installed eccentrically from the rotation axis of the puncture needle holding member 1Ba. The part has a handle, and the thickness of the part is increased by rotating the part with the handle. That is, the operator can fix the puncture needle holding member 1Ba to the support member 1Be by rotating the component. Further, the same number of holes as the grooves are arranged on the upper surface of the puncture needle holding member 1Ba on the circumference away from the rotation shaft by a predetermined distance, and a pin is inserted into one of the holes from the support member 1Be. Even so, the puncture needle holding member 1Ba can be fixed to the support member 1Be.

  As described above, in the puncture adapter 1B according to the present embodiment, the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba have shapes corresponding to the puncture needles Na, Nb, and Nc having different thicknesses. ing. That is, when each of the plurality of grooves 1Bb to 1Bd is positioned at the above-described predetermined position and the puncture needles Na, Nb, Nc corresponding to the grooves are urged by the pressing surface 1Ag of the pressing member 1Ah, The positions of the central axes Ca, Cb, Cc of the puncture needles Na, Nb, Nc (specifically, in the ultrasonic scanning direction A of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1Bb) The position and the position in the direction B perpendicular to the position are the same. Therefore, the puncture guide displayed on the ultrasonic cross-sectional image in the ultrasonic diagnostic imaging apparatus does not cause a positional shift of the ultrasonic probe 10 in the ultrasonic scanning direction A on the central axis of the puncture needle due to the thickness of the puncture needle. It is possible to eliminate the problem that a parallel shift between the puncture needle (guideline indicating the puncture route for the living body) and the actually displayed puncture needle image occurs.

  Incidentally, as shown in FIG. 4B, the ultrasonic probe 10 is mounted on the mounting mechanism 1Bb so that the pressing direction of the pressing surface 1Ag of the pressing member 1Ah against the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba is the same. In the case where the direction B is orthogonal to the ultrasonic scanning direction (A) of the ultrasonic probe 10 at the time (note that the shape of the support member 1Be shown in FIG. In the same manner as in the above-described embodiment (ie, in the case of FIG. 4A), the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba are punctured with puncture needles Na each having a different thickness, The shape corresponds to Nb and Nc. That is, each of the plurality of grooves 1Bb to 1Bd is placed at a predetermined position (specifically, the pressing member 1Ah in the ultrasonic scanning direction A of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1Bb). When the puncture needles Na, Nb, and Nc corresponding to the groove portions are urged by the press surface 1Ag of the presser member 1Ah after being positioned at the pressing surface 1Ag), the puncture needles Na, Nb, and Nc Positions of the central axes Ca, Cb, and Cc (specifically, the position of the ultrasonic probe 10 in the ultrasonic scanning direction A when the ultrasonic probe 10 is mounted on the mounting mechanism 1Bb and the direction orthogonal thereto) (Positions in B) are formed in the same shape. With this configuration, the insertion path of the puncture needle is attached to the attachment mechanism unit 1Bb due to the positional deviation of the central axis of the puncture needle in the direction B perpendicular to the ultrasonic scanning direction (A) of the ultrasonic probe 10. It is possible to eliminate the deviation from the ultrasonic scanning surface of the ultrasonic probe 10 that has been performed, and in the ultrasonic diagnostic imaging apparatus, there is a problem that the drawing performance of the puncture needle image displayed in the ultrasonic image is reduced. Can be eliminated.

  Further, as shown in FIGS. 5A and 5B, instead of the above-described presser member 1Ah, a plurality of groove portions (specifically, each of the plurality of groove portions 1Bb to 1Bd of the puncture needle holding member 1Ba). The presser member in which 1Bg is formed on the circumferential surface (having a cylindrical shape similar to that of the puncture needle holding member 1Ba), and being formed symmetrically with the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba 1Bh may be provided, and puncture needles Na to Nc having a corresponding thickness may be sandwiched between the plurality of grooves 1Bb to 1Bd of the puncture needle holding member 1Ba and the plurality of grooves 1Bg of the pressing member 1Bh. However, in such a case, it is necessary to provide gears that mesh with each rotation shaft as a mechanism for interlocking the puncture needle holding member 1Ba and the presser member 1Bh. In addition, it is necessary to form insertion holes for inserting the puncture needles Na to Nc at locations corresponding to the support member 1Be (that is, locations where the puncture needles Na to Nc are sandwiched).

  In FIG. 6, the perspective view showing the whole structure of the puncture adapter in a present Example is shown. In the following, the same components as those in FIGS. 1 to 5 described above are denoted by the same reference numerals. As shown in FIG. 6, the puncture adapter 1C mainly includes a puncture needle holding mechanism 1CA for holding a puncture needle, and an attachment capable of attaching the puncture needle holding mechanism 1CA to the ultrasonic probe 10. Provided between the mechanism unit 1AB, the puncture needle holding mechanism unit 1CA and the mounting mechanism unit 1AB, the puncture needle holding mechanism unit 1CA is rotated and moved on a plane including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting unit. It is comprised from the rotation support mechanism part 1AC supported so that it is possible.

  The mounting mechanism 1AB includes a holding member 1ABa that holds the side surface of the ultrasonic probe 10 from three directions, a presser door 1ABb that presses the side surface of the ultrasonic probe 10 held by the holding member 1ABa from the remaining one direction, The ultrasonic probe 10 is held between the holding member 1ABa and the holding door 1ABb, and the fixing member 1ABc is used to fix the holding door 1ABb to the holding member 1ABa.

  With such a configuration, the operator can detachably attach the puncture adapter 1C to the ultrasonic probe 10. Incidentally, when the puncture adapter 1C is used to construct an ultrasonic probe for puncturing, the mounting mechanism 1AB is omitted, and the rotation support mechanism 1AC and the main body case of the ultrasonic probe 10 are configured integrally. good. The ultrasonic probe 10 includes a linear type and a sector type in which an ultrasonic transducer surface (a surface disposed on the bottom surface of the main body case for scanning by irradiating a living body with an ultrasonic wave) has a planar shape, Any of the convex type in which the ultrasonic transducer surface has a curved surface shape may be used.

  The rotation support mechanism portion 1AC is extended from the holding member 1ABa of the mounting mechanism portion 1AB and has a rotation support member 1ACa in which an arc-shaped long hole portion is formed, and an arc-shaped long hole portion formed in the rotation support member 1ACa. And a fixing member 1ACb for fixing the puncture needle holding mechanism 1CA to a desired position on the surface including the ultrasonic scanning surface of the ultrasonic probe 10 mounted on the mounting portion.

  With such a configuration, the operator can insert the puncture needle held by the puncture needle holding mechanism 1CA with respect to the ultrasonic scanning surface of the ultrasonic probe 10 having the puncture needle holding mechanism 1CA attached to the attachment. Can be adjusted to a desired angle.

  The puncture needle holding mechanism 1CA has a predetermined direction V (specifically, a direction B orthogonal to the ultrasonic scanning direction (A) of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB). ), The inclined surface 1Cb formed according to the thickness of each of the plurality of types of puncture needles, and the inclined surface positions (1Cc to 1Ce) corresponding to the respective thicknesses of the plurality of puncture needles of this inclined surface 1Cb. A puncture needle holding member 1Ca having position indicating portions 1Cc to 1Ce that are clearly indicated by lines, concave grooves, etc. at the inclined surface 1Cb and its vicinity (for example, the upper surface of the puncture needle holding mechanism 1CA adjacent to the inclined surface 1Cb); The support member 1Ae that supports the puncture needle holding member 1Ca so as to be slidable in the predetermined direction V (by a guide member (not shown)), and a plurality of inclined surface positions 1Cc to 1Ce of the puncture needle holding member 1Ca A desired inclined surface position is located at a predetermined position (specifically, an intersection position with a surface including the ultrasonic scanning surface of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB). As described above, with respect to the fixing member 1Af for fixing the puncture needle holding member 1Ca supported by the support member 1Ae and the inclined surface 1Cb of the puncture needle holding member 1Ca positioned at the predetermined position, the puncture needle Na˜ And an urging member 1Ai for urging the pressing member 1Ch having a pressing surface (surface for pressing the puncture needle) 1Cg having a shape corresponding to the thickness of Nc (by a spring member (not shown)). The inclined surface 1Cb of the puncture needle holding member 1Ca is between the inclined surface 1Cb at the inclined surface positions 1Cc to 1Ce and the pressing surface 1Cg of the pressing member 1Ch biased against the inclined surface 1Cb. When the puncture needles Na to Nc having a thickness corresponding to the inclined surface positions 1Cc to 1Ce are held, the center axes of the puncture needles have inclinations adjusted to be the same position. . In other words, the inclined surface positions 1Cc to 1Ce of the inclined surface 1Cb of the puncture needle holding member 1Ca are changed from the inclined surface 1Cb at the inclined surface position to the inclined surface 1Cb with the puncture needles Na to Nc having a thickness corresponding to the inclined surface position by the pressing member 1Ch. When applied, the center axis of the puncture needles Na to Nc is provided at the same position.

  The number of the inclined surface positions 1Cc to 1Ce is not limited to three, and may be any other number depending on the number of types of puncture needles to be used. Thus, the inclined surface 1Cb of the puncture needle holding member 1Ca has a plurality of inclined surface positions provided according to the thicknesses of the plurality of types of puncture needles, so that the operator can select the puncture needle to be used. The problem of lack of convenience such as using a plurality of needle guides depending on the thickness can be solved. In addition, by forming a concave groove in the corresponding position of the inclined surface 1Cb as the position indicating portions 1Cc to 1Ce, the operator can easily define the puncture needle to be used at the inclined surface position corresponding to the thickness thereof. Can do. However, the concave groove formed in the inclined surface 1Cb has a size that does not significantly affect the position of the central axis of the puncture needles Na to Nc biased by the concave groove.

  FIG. 7A shows a top view schematically showing the puncture adapter 1C shown in FIG. As shown in FIG. 7A, the plurality of inclined surface positions 1Cc, 1Cd, 1Ce of the inclined surface 1Cb of the puncture needle holding member 1Ca have thicknesses of 14-15 [G], 16-18 [G], respectively. It corresponds to puncture needles Na, Nb and Nc of 19 to 22 [G]. That is, the heights of the inclined surfaces 1Cb of the plurality of inclined surface positions 1Cc, 1Cd, 1Ce are different from each other by the difference in radius of the puncture needles Na, Nb, Nc, specifically, the puncture needles Na, Nb, The difference is the difference in radius of Nc. Accordingly, after each of the plurality of inclined surface positions 1Cc, 1Cd, 1Ce is positioned at the above-described predetermined position, 14-15 [G], 16-18 [G], 19-22 corresponding to the inclined surface position. When the puncture needles Na, Nb, Nc of [G] are urged by the pressing surface 1Cg of the pressing member 1Ch, the positions of the central axes Ca, Cb, Cc of the puncture needles Na, Nb, Nc (specifically, The position of the ultrasonic probe 10 in the ultrasonic scanning direction A and the position in the direction B perpendicular to the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB are the same. In consideration of the convenience of the operator, the wall surface of each of the plurality of inclined surface positions 1Cc to 1Ce of the inclined surface 1Cb of the puncture needle holding member 1Ca corresponds to each inclined surface position. It is preferable that the thickness of the puncture needles Na, Nb, and Nc (for example, 14 to 15 [G], 16 to 18 [G], 19 to 22 [G], etc.) is clearly indicated by engraving or the like. Thereby, the operator can identify the inclined surface position corresponding to the thickness of the puncture needle to be used easily.

  Further, the puncture needle holding member 1Ca can be fixed to the support member 1Ae by the fixing member 1Af. Specifically, for example, a female screw part is formed on the upper surface of the puncture needle holding member 1Ca, and the male screw part of the fixing member 1Af is screwed into this through a long hole formed in the support member 1Ae. It is set as the structure fixed in the state which located the groove part in the predetermined position mentioned above. In view of the convenience of the operator, it is preferable to form the above-described inscription or the like that clearly indicates the predetermined position on the upper surface of the support member 1Ae. Thereby, the operator can align a desired inclined surface position with this easily.

  Incidentally, the configuration of the fixing member 1Af is not limited to the above-described configuration. For example, a female screw portion is formed in the support member 1Ae, and the male screw portion of the fixing member 1Af is screwed into the female screw portion. It is good also as a structure fixed in the state which located the desired inclined surface position in the predetermined position mentioned above by pressing a front-end | tip part on the upper surface of puncture needle holding member 1Ca.

  As described above, in the puncture adapter 1C of the present embodiment, the inclined surface 1Cb of the puncture needle holding member 1Ca has an inclination corresponding to the puncture needles Na, Nb, and Nc having different thicknesses. That is, after the inclined surface 1Cb in each of the plurality of inclined surface positions 1Cc to 1Ce is positioned at the above-described predetermined position, the puncture needles Na, Nb, and Nc corresponding to the inclined surface position are pressed against the pressing surface 1Cg of the pressing member 1Ch. The positions of the central axes Ca, Cb, and Cc of the puncture needles Na, Nb, and Nc (specifically, the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB) 10 in the ultrasonic scanning direction A and the position in the direction B orthogonal thereto are inclined so as to be the same. Therefore, the puncture guide displayed on the ultrasonic cross-sectional image in the ultrasonic diagnostic imaging apparatus does not cause a positional shift of the ultrasonic probe 10 in the ultrasonic scanning direction A on the central axis of the puncture needle due to the thickness of the puncture needle. It is possible to eliminate the problem that a parallel shift between the puncture needle (guideline indicating the puncture route for the living body) and the actually displayed puncture needle image occurs.

  By the way, as shown in FIG. 7B, the arrangement direction V of the plurality of inclined surface positions 1Cc to 1Ce of the inclined surface 1Cb of the puncture needle holding member 1Ca is when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB. When formed in the ultrasonic scanning direction A of the ultrasonic probe 10 (by the way, the shape of the support member 1Ae shown in FIG. 4B is slightly different from that in FIG. 1A), Similar to the embodiment (that is, the case in FIG. 7A), the inclined surface 1Cb of the puncture needle holding member 1Ca is inclined corresponding to the puncture needles Na, Nb, and Nc having different thicknesses. That is, the inclined surface 1Cb in each of the plurality of inclined surface positions 1Cc to 1Ce is set to a predetermined position (specifically, the ultrasonic scanning direction of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism portion 1AB). When the puncture needles Na, Nb, Nc corresponding to the inclined surface position are urged by the pressing surface 1Cg of the pressing member 1Ch after being positioned at the pressing surface 1Cg of the pressing member 1Ch in A) The positions of the central axes Ca, Cb, Cc of the puncture needles Na, Nb, Nc (specifically, the ultrasonic scanning direction A of the ultrasonic probe 10 when the ultrasonic probe 10 is mounted on the mounting mechanism 1AB) And the position in the direction B perpendicular to the same) are formed so as to have the same inclination. With this configuration, the insertion path of the puncture needle is attached to the attachment mechanism unit 1AB due to a positional shift in the direction B perpendicular to the ultrasonic scanning direction (A) of the ultrasonic probe 10 with respect to the central axis of the puncture needle. It is possible to eliminate the deviation from the ultrasonic scanning surface of the ultrasonic probe 10 that has been performed, and in the ultrasonic diagnostic imaging apparatus, there is a problem that the drawing performance of the puncture needle image displayed in the ultrasonic image is reduced. Can be eliminated.

  Further, as shown in FIGS. 8A and 8B, a plurality of step surfaces 1Db may be provided in place of the inclined surface 1Cb described above. In such a case, each of the step surfaces 1Dc to 1De of the puncture needle holding member 1Da shown in FIGS. 4A and 4B is a step corresponding to the thickness of each of the puncture needles Na to Nc, specifically, When the puncture needles Na to Nc having a thickness corresponding to the stepped surface are held between the respective stepped surfaces and the pressing surface 1Cg of the pressing member 1Ch urged against the stepped surface, the puncturing is performed. A step is provided that is adjusted so that the central axes of the needles are located at the same position. That is, the height of each of the step surfaces 1Dc to 1De is different by the difference in radius between the puncture needles Na, Nb, and Nc, specifically, lower by the difference in radius between the puncture needles Na, Nb, and Nc, respectively. It has become. Similarly to the case of the inclined surface 1Cb described above, by forming a concave groove in each of the step surfaces 1Dc to 1De, the operator can easily define the puncture needle to be used as a step surface corresponding to the thickness thereof. can do. However, the concave groove formed in each of the step surfaces 1Dc to 1De has a size that does not greatly affect the position of the central axis of the puncture needles Na to Nc biased by the step surface. To do.

  The puncture adapter and the ultrasonic probe according to the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention.

It is a perspective view showing the whole structure in one Example of the puncture adapter which concerns on this invention. (A) is the top view which represented typically the puncture adapter shown in FIG. (B) is a top view schematically showing another aspect of the puncture adapter shown in (A). It is a perspective view showing the whole structure in the other Example of the puncture adapter shown in FIG. (A) is the top view which represented typically the puncture adapter shown in FIG. (B) is a top view schematically showing another aspect of the puncture adapter shown in (A). (A) is the top view which represented typically the other aspect of the puncture adapter shown to FIG. 4 (A). (B) is a top view schematically showing another aspect of the puncture adapter shown in FIG. 4 (B). It is a perspective view showing the whole structure in the other Example of the puncture adapter shown in FIG. (A) is the top view which represented typically the puncture adapter shown in FIG. (B) is a top view schematically showing another aspect of the puncture adapter shown in (A). (A) is the top view which represented typically the other aspect of the puncture adapter shown to FIG. 7 (A). (B) is a top view schematically showing another aspect of the puncture adapter shown in FIG. 7 (B). (A) is a top view schematically showing one type of conventional puncture adapter. (B) is a top view schematically showing another type of the conventional puncture adapter shown in (A).

Explanation of symbols

1A Puncture Adapter 1AA Puncture Needle Holding Mechanism Part 1AB Mounting Mechanism Part 1ABa Holding Member 1ABb Pressing Door 1ABc Fixed Member 1AC Rotation Support Mechanism Part 1ACa Rotation Support Member 1ACb Fixing Member 1Aa Puncture Needle Holding Member 1Ab-1Ad Groove Part 1A Groove Part 1A Groove Part 1A Presser surface 1Ah Presser member 1Ai Energizing member 10 Ultrasonic probe A Ultrasonic scanning direction B Direction orthogonal to ultrasonic scanning direction V Predetermined direction

Claims (14)

A puncture needle holding member having a plurality of grooves formed according to the thickness of each of a plurality of types of puncture needles arranged in a predetermined direction;
A support member that supports the puncture needle holding member to be movable in the predetermined direction;
A fixing member for fixing the puncture needle holding member such that any one of the plurality of grooves is located at a predetermined position in the predetermined direction;
A pressing member for pressing and pressing a puncture needle having a thickness corresponding to the groove with respect to the groove fixed at a predetermined position in the predetermined direction,
Each of the plurality of grooves has a shape such that the center axis of the puncture needle has the same position when the puncture needle having a thickness corresponding to the groove is applied to the groove by the pressing member. A puncture adapter characterized by   The puncture adapter according to claim 1, wherein the puncture needle holding member has a flat portion, and the plurality of grooves are formed in the predetermined direction of the flat portion.   The puncture adapter according to claim 1, wherein the puncture needle holding member has a cylindrical shape and is formed by arranging the plurality of grooves in a circumferential direction of a circumferential surface portion thereof. The pressing member has a cylindrical shape, and a plurality of groove portions corresponding to each of the plurality of groove portions formed on the circumferential surface of the puncture needle holding member are formed at predetermined positions on the circumferential surface thereof,
The puncture needle holding member includes an interlocking mechanism for rotating the presser member in the circumferential direction in conjunction with the rotation when the puncture needle holding member rotates in the circumferential direction. The puncture adapter as described.   5. The puncture needle holding member has a thickness clarification portion that clearly indicates a thickness of a puncture needle corresponding to each of the plurality of groove portions at the groove portion or a position near the groove portion. The puncture adapter as described in any one of Claims. An inclined surface having an inclination corresponding to the thickness of a plurality of types of puncture needles with respect to a predetermined direction, and an inclined surface position corresponding to the thickness of each of the plurality of puncture needles on the inclined surface A puncture needle holding member having a position indicating portion that clearly indicates in the vicinity position;
A support member that supports the puncture needle holding member to be movable in the predetermined direction;
A fixing member for fixing the puncture needle holding member such that any one of the plurality of inclined surface positions is located at a predetermined position in the predetermined direction;
A pressing member for pressing and pressing a puncture needle having a thickness corresponding to the inclined surface with respect to the inclined surface of the inclined surface located at a predetermined position in the predetermined direction,
When the puncture needle having a thickness corresponding to the inclined surface position is applied by the pressing member to the inclined surface at the inclined surface position, the position of the inclined surface position is the same as the position of the central axis of the puncture needle. A puncture adapter characterized by being provided at such a position.   The puncture needle holding member has a thickness indicating portion that clearly indicates the thickness of the puncture needle corresponding to each of the plurality of inclined surface positions at the inclined surface position or a position near the inclined surface position. The puncture adapter as described.   The inclined surface has a concave portion that is formed in correspondence with each of the plurality of inclined surface positions and is arranged in the predetermined direction for applying a puncture needle having a thickness corresponding to the inclined surface position. The puncture adapter according to item 6 or claim 7. A puncture needle holding member having a plurality of step surfaces according to the thickness of each of a plurality of types of puncture needles arranged in a predetermined direction;
A support member that supports the puncture needle holding member to be movable in the predetermined direction;
A fixing member for fixing the puncture needle holding member so that any one of the step surfaces is located at a predetermined position in the predetermined direction;
A pressing member for pressing against a step surface located at a predetermined position in the predetermined direction by applying a puncture needle having a thickness corresponding to the step surface;
Each of the plurality of step surfaces is such that the center axis of the puncture needle has the same position when a puncture needle having a thickness corresponding to the step surface is applied to the step surface by the pressing member. A puncture adapter characterized by having a step.   The said puncture needle holding member has the thickness clarification part which specifies the thickness of the puncture needle corresponding to each of these several level | step difference surfaces in the said level | step difference surface or its vicinity position. Puncture adapter.   11. The puncture adapter according to claim 9, wherein each of the plurality of step surfaces has a recess for applying a puncture needle having a thickness corresponding to the step surface.   An ultrasonic probe comprising the puncture adapter according to any one of claims 1 to 11.   The ultrasonic probe according to claim 12, wherein the puncture adapter is provided so that the predetermined direction is an ultrasonic scanning direction of the ultrasonic probe or a direction orthogonal to the ultrasonic scanning direction. The ultrasonic probe according to claim 12 or 13, wherein the predetermined position is an intersection position with a plane including an ultrasonic scanning plane of the ultrasonic probe.

Images