Invasive instrument guide device

Abstract

The present disclosure relates to an invasive instrument guide device. An embodiment of the present disclosure includes: a first adapter unit coupled to a probe for emitting an ultrasonic beam toward a target position, the first adapter unit fixing the position of the probe; a second adapter unit coupled to an invasive instrument and moving together with the invasive instrument; a guide unit which is connected to the second adapter unit and guides the second adapter unit to be moved along the longitudinal direction of the invasive instrument; and a limiting unit including a stopper disposed on a movement path of the second adapter unit to limit a movable distance of the second adapter unit, wherein the limiting unit can be controlled to change the movable distance of the second adapter unit.

Description

Invasive instrument guide device

[0001] The present disclosure relates to an invasive instrument guide device. More specifically, the present disclosure relates to an invasive instrument guide device capable of guiding needles of different lengths to be accurately inserted into a target location.

[0002] Typically, bioinvasive procedures are performed for blood draws, catheter sheath insertions, drug injections, etc.

[0003] Figure 1 is a diagram illustrating an intravenous injection (IV) method using a catheter sheath (CS) and a guide needle (GN) as an example of bio-invasiveness.

[0004] First, an invasive device (IA) in the form of a guide needle (GN) and a catheter sheath (CS) overlapping each other is inserted into the vein (V) by piercing the skin. (See (a) of Figure 1) Once the invasive device (IA) is inserted into the vein (V), the guide needle (GN) is pulled out posteriorly while the catheter sheath (CS) is pushed further into the vein (V). (See (b) of Figure 1)

[0005] Since bioinvasive procedures such as the above-mentioned intravenous injection require precise insertion of a needle into the blood vessel of the subject of the invasion, it is important to find the blood vessel of the subject of the invasion. However, if the blood vessel of the subject of the invasion is not clearly visible, there is a problem in that it is difficult to find the blood vessel, making the invasion difficult.

[0006] To address these issues, an invasive device guide device is being developed that uses ultrasound to guide the precise location of blood vessels during bioinvasive procedures.

[0007] These devices can visually visualize blood vessels and invasive devices by emitting ultrasound along the path of the invasive device. Therefore, users who wish to insert an invasive device needle into their own or another person's body can directly view the ultrasound image generated by the probe and insert the needle into the appropriate location.

[0008] However, even when using these devices, the depth at which the needle is inserted will inevitably vary depending on the user's skill level, and there is always a possibility that posterior wall puncture may occur in the case of an unskilled user or by mistake.

[0009] Meanwhile, invasive devices can be configured with a variety of needle diameters, depending on the need. Depending on the diameter, the length of the needle also varies. For example, an 18G (Gauge) needle is thicker and longer than a 24G needle.

[0010] Therefore, guiding needles of various lengths to always be accurately inserted into the target location also needs to be considered in the development of invasive instrument guide devices.

[0011] The present disclosure has been made in response to the aforementioned background technology, and an invasive instrument guide device according to one embodiment of the present disclosure has the purpose of providing an invasive instrument guide device capable of guiding the movement path of an invasive instrument so that a needle is accurately inserted into a target position.

[0012] In addition, an invasive instrument guide device according to one embodiment of the present disclosure aims to provide an invasive instrument guide device capable of limiting the movable distance of an invasive instrument so that a needle is always accurately inserted into the same target location even if the length of the needle changes.

[0013] In addition, an invasive instrument guide device according to one embodiment of the present disclosure aims to provide an invasive instrument guide device that allows a needle having a short length to be inserted to a target position with its full length without a portion of the needle being covered by the invasive instrument guide device.

[0014] In addition, an invasive device guide device according to one embodiment of the present disclosure aims to provide an invasive device guide device that enables bioinvasion to be performed hygienically at all times by preventing a needle from coming into contact with a component of the invasive device guide device.

[0015] However, the problems to be solved in this disclosure are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood based on the description below.

[0016] An invasive device guide device according to one embodiment of the present disclosure is disclosed to achieve the aforementioned task.

[0017] One embodiment of the present disclosure comprises: a first adapter part coupled to a probe that irradiates an ultrasound beam toward a target location and fixes the location of the probe; a second adapter part coupled to the invasive device and moved together with the invasive device; a guide part connected to the second adapter part and guiding the second adapter part to move along the longitudinal direction of the invasive device; and a limiting part including a stopper disposed on a movement path of the second adapter part to limit a movable distance of the second adapter part, wherein the limiting part can be controlled to change the movable distance of the second adapter part.

[0018] Alternatively, the first adapter part may include a probe fixing part to which the probe is coupled and fixed; and an adapter body connected to the probe fixing part and accommodating the guide part and the limiting part in an internal space.

[0019] Alternatively, the second adapter portion may include an invasive device fixing portion to which the invasive device is coupled and fixed; and a moving portion having one end connected to the invasive device fixing portion and the other end connected to the guide portion and sliding along the longitudinal direction.

[0020] Alternatively, the invasive device may include a needle portion that invasively penetrates a living body and a connecting portion that is connected to the needle portion and is coupled to the invasive device fixing portion.

[0021] Alternatively, the restriction part may further include a restriction part body; and a rotation knob connected to one longitudinal side of the restriction part body and rotated by an external force, and the stopper may be connected to one radial side of the restriction part body and disposed on a movement path of the second adapter part.

[0022] Alternatively, the above-described restrictive body may have a cylindrical shape and have a spiral stopper moving groove formed along the outer circumference.

[0023] Alternatively, the stopper may be connected to the stopper moving home on one side and to the guide portion on the other side.

[0024] Alternatively, the rotary knob may be marked with a plurality of numbers indicating the gauge size or length of the needle included in the invasive device.

[0025] Alternatively, the restrictor body may be rotated together with the rotation of the rotary knob.

[0026] Alternatively, the stopper may be moved forward or backward along the length of the invasive device when the rotary knob is rotated.

[0027] An invasive device guide device according to one embodiment of the present disclosure includes a second adapter part to which an invasive device is coupled and a guide part that guides the second adapter part to slide along the longitudinal direction of the invasive device, thereby having the effect of allowing a needle to be accurately inserted into a target position.

[0028] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the movable distance of the second adapter part is variable, so that even if the length of the needle changes, the needle can always be accurately inserted into the same target position.

[0029] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the joint portion of the invasive instrument is fixed to the second adapter portion and the needle portion that directly invades the living body is exposed to the outside of the invasive instrument guide device, so that a part of the needle is not covered by the invasive instrument guide device, and thus even a needle having a short length can be inserted to the target position with its entire length.

[0030] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the joint portion of the invasive instrument is fixed to the second adapter portion and the needle portion that directly invades the living body is exposed to the outside of the invasive instrument guide device, thereby preventing the needle from coming into contact with one component of the invasive instrument guide device, thereby enabling the invasive instrument to always be hygienically performed.

[0031] The effects of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0032] Figure 1 is a drawing showing an example of a bioinvasive method for intravenous injection using a catheter sheath and a guide needle.

[0033] Figure 2 is a diagram illustrating another example of bio-invasiveness, using a blood collection needle and a blood vessel.

[0034] FIG. 3 is a drawing showing an invasive device guide device according to one embodiment of the present disclosure.

[0035] FIG. 4 is a drawing showing a rotation knob of an invasive instrument guide device according to one embodiment of the present disclosure.

[0036] FIG. 5 is a drawing for explaining the movement of a stopper in an invasive device guide device according to one embodiment of the present disclosure.

[0037] FIG. 6 is a drawing for explaining an example in which the insertion of an invasive instrument having a first specification is guided by an invasive instrument guide device according to one embodiment of the present disclosure.

[0038] FIG. 7 is a drawing for explaining an example in which the insertion of an invasive instrument having a second specification is guided by an invasive instrument guide device according to one embodiment of the present disclosure.

[0039] Below, embodiments of the present disclosure are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present disclosure. The embodiments presented in this disclosure are provided to enable those skilled in the art to utilize or implement the contents of the present disclosure. Accordingly, various modifications to the embodiments of the present disclosure will be apparent to those skilled in the art. That is, the present disclosure may be implemented in various different forms and is not limited to the embodiments described below.

[0040] Throughout the specification of this disclosure, identical or similar drawing numbers refer to identical or similar components. Furthermore, for clarity in the description of this disclosure, drawing numbers for parts unrelated to the description of this disclosure may be omitted in the drawings.

[0041] The term "or" as used herein is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified herein or clear from context, "X employs A or B" should be understood to mean either of the natural inclusive permutations. For example, unless otherwise specified herein or clear from context, "X employs A or B" can be interpreted to mean either X employs A, X employs B, or X employs both A and B.

[0042] The term “at least one of A or B” as used in this disclosure should be interpreted to refer to all of A, B, and combinations of A and B.

[0043] The term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the related concepts listed.

[0044] The terms "comprises" and / or "comprising" as used herein should be understood to mean the presence of certain features and / or components. However, it should be understood that the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other features, other components, and / or combinations thereof.

[0045] Unless otherwise specified in this disclosure or unless the context makes it clear that the singular form is intended to be referred to, the singular should generally be construed to include “one or more.”

[0046] The term "Nth (N is a natural number)" used in the present disclosure can be understood as an expression used to mutually distinguish components of the present disclosure based on a predetermined standard such as a functional perspective, a structural perspective, or convenience of explanation. For example, components performing different functional roles in the present disclosure can be distinguished as a first component or a second component. However, components that are substantially the same within the technical spirit of the present disclosure but must be distinguished for convenience of explanation may also be distinguished as a first component or a second component.

[0047] Meanwhile, the term "module" or "unit" used in the present disclosure can be understood as a term referring to an independent functional unit that processes resources such as a computer-related entity, firmware, software or a part thereof, hardware or a part thereof, or a combination of software and hardware. At this time, the "module" or "unit" may be a unit composed of a single element, or a unit expressed as a combination or set of multiple elements. For example, as a narrow concept, a "module" or "unit" may refer to a hardware element of a device or a set thereof, an application program that performs a specific function of software, a processing process implemented through software execution, or a set of instructions for program execution, etc. In addition, as a broad concept, a "module" or "unit" may refer to the device itself, or the program itself that runs on the device, etc. However, since the above-described concept is only an example, the concept of “module” or “part” may be defined in various ways within a range understandable to those skilled in the art based on the contents of the present disclosure.

[0048] The term "connected" as used in this disclosure should be interpreted to include not only cases where components are "directly connected" but also cases where other components are "present" between them and cases where they are "electrically connected" with other components interposed between them.

[0049] The explanation of the above terms is intended to aid understanding of the present disclosure. Therefore, unless explicitly stated as limiting the contents of the present disclosure, it should be noted that the above terms are not intended to limit the technical ideas of the contents of the present disclosure.

[0050] FIG. 2 is a drawing showing a method using a blood collection needle and a blood vessel as another example of bio-invasiveness, and FIG. 3 is a drawing showing an invasive device guide device according to one embodiment of the present disclosure.

[0051] First, referring to FIG. 3, an invasive device guide device (10) according to one embodiment of the present disclosure may include a first adapter portion (100), a second adapter portion (200), a guide portion (300), and a restriction portion (400).

[0052] The first adapter part (100) can be combined with a probe (PB) that irradiates an ultrasonic beam toward a target location. The first adapter part (100) serves to fix the probe (PB) so that it does not move.

[0053] Here, the target location may mean the target point that the end of the inserted needle must ultimately reach when the needle of the invasive device is inserted into the living body.

[0054] The probe (PB) serves to ultrasound image a portion of the blood vessel structure into which the needle is ultimately to be inserted prior to inserting the needle into the body.

[0055] The first adapter part (100) may include a probe fixing part (110).

[0056] A probe (PB) can be coupled and fixed to the probe fixing portion (110). To this end, a fixing hole (115) into which the probe (PB) can be inserted and coupled may be provided in the probe fixing portion (110). The fixing hole (115) may be formed in a shape corresponding to the shape of the probe (PB) so that the probe (PB) does not move when coupled. The fixing hole (115) may be formed in a shape that penetrates vertically.

[0057] As another example, the probe fixing member (110) may include a gripper structure formed by a pair of gripper arms. The probe fixing member (110) including the gripper structure may have each of the pair of gripper arms in an open state before the probe (PB) is coupled, and when the probe (PB) is inserted between the gripper arms, each of the gripper arms may come closer to each other and be in a closed state to fix the probe (PB).

[0058] However, the structures described above are examples, so any structure that can fix the position of the probe (PB) so that it does not move can be included in the embodiment of the probe fixing unit (110) according to the present disclosure.

[0059] The first adapter part (100) may further include an adapter body (120).

[0060] The adapter body (120) can be connected to the probe fixing part (110) and can be provided in a form that extends long from the probe fixing part (110).

[0061] At this time, the adapter body (120) may be extended to have a predetermined incline with respect to the longitudinal axis of the probe (PB) when the probe (PB) is coupled to the probe fixing part (110).

[0062] From another perspective, the adapter body (120) may be extended to have a predetermined incline with respect to the radiation axis (PN) of the ultrasonic waves radiated by the probe (PB).

[0063] The adapter body (120) may have a space formed inside to accommodate a guide portion (300) and a restriction portion (400) to be described later.

[0064] As will be described later, the invasive device (IA) is inserted into the body under the guidance of the guide unit (300). When the invasive device (IA) is inserted into the body, the adapter body (120) may also be provided in a form that extends from the probe fixing unit (110) with a posterior-upward slope so that the invasive device (IA) can be inserted with a posterior-upward slope.

[0065] The second adapter part (200) can be combined with an invasive device (IA).

[0066] The second adapter part (200) may be provided with a structure that can slide along the guide part (300) described later. When an invasive device (IA) is coupled to the second adapter part (200), the second adapter part (200) can move together with the invasive device (IA).

[0067] At this time, the invasive device (IA) may be an invasive device for intravenous (IV) injection, including a catheter sheath (CS) and a guide needle (GN). (See Fig. 1) Here, the catheter sheath (CS) refers to a plastic tube that overlaps the needle of the guide needle (GN) (or wraps the needle from the outside). The catheter sheath (CS) may also be referred to as a catheter or catheter tube.

[0068] However, the invasive device (IA) described in the present disclosure is not limited thereto, and any invasive device (IA) that needs to be accurately invasive to the intended target location may be included in the invasive device (IA) described in the present disclosure.

[0069] For example, in another embodiment, the invasive device (IA) may include a blood collection device including a blood collection needle (IV) and a blood vessel (VA). In this case, when blood collection is performed, the blood collection needle (IV) and the blood vessel (VA) move forward together (see (a) of FIG. 2), and after blood collection is completed, the blood vessel (VA) can be moved backward and removed (see (b) of FIG. 2).

[0070] Alternatively, in another embodiment, not shown, the invasive device (IA) may be a biopsy device for obtaining a tissue sample.

[0071] An invasive device (IA) may include a needle portion for invasive a living body and a connecting portion connected to the needle portion. The connecting portion may refer to a configuration that is connected and fixed to an invasive device fixing portion (210) described later. Based on the above-described embodiments, the needle portion may be a catheter sheath (CS) that overlaps a guide needle (GN) and is inserted into a living body. Alternatively, the needle portion may be a blood collection needle (IA). Alternatively, the needle portion may be a biopsy needle of a biopsy device.

[0072] Based on the above-described embodiments, the coupling portion may be a handle of a guide needle (GN). Alternatively, the coupling portion may be a blood vessel (VA). Alternatively, the coupling portion may be a handle of a biopsy device.

[0073] Meanwhile, for convenience of explanation, the following description will be based on the invasive device (IA) illustrated in Fig. 1 unless otherwise specified.

[0074] The second adapter part (200) may include an invasive device fixing part (210).

[0075] An invasive device (IA) can be attached and fixed to the invasive device fixing part (210).

[0076] More specifically, the attachment part of the invasive device (IA) can be attached and fixed to the invasive device fixing part (210).

[0077] In an embodiment where the invasive device (IA) includes a catheter sheath (CS) and a guide needle (GN), the invasive device fixing member (210) may be fixed by engaging the handle of the guide needle (GN). Accordingly, the entire length of the needle of the guide needle (GN) may be exposed in front of the invasive device fixing member (210). Similarly, the entire length of the catheter sheath (CS) overlapping the needle of the guide needle (GN) may also be exposed in front of the invasive device fixing member (210).

[0078] In an embodiment where the invasive device (IA) includes a blood collection needle (IV) and a blood vessel (VA), the blood vessel (VA) may be coupled and fixed to the invasive device fixing portion (210). Accordingly, the entire length of the blood collection needle (IV) may be exposed in front of the invasive device fixing portion (210). This configuration has the effect of allowing even a short needle to be inserted to the target location along its entire length, thereby ensuring that bioinvasion can always be performed hygienically.

[0079] Meanwhile, the forward direction in the present disclosure refers to the direction in which the probe fixing member (110) is positioned. The rear direction in the present disclosure refers to the direction in which the rotary knob (420) described later is positioned.

[0080] The invasive device fixing part (210) may be provided with a fixing hole (215) into which the invasive device (IA) can be inserted and coupled. The fixing hole (215) may be formed in a shape corresponding to the shape of the invasive device (IA) so that the invasive device (IA) does not move when coupled. The fixing hole (215) may be formed in a shape that penetrates in the front-back direction.

[0081] As another example, the invasive instrument fixing member (210) may include a gripper structure formed by a pair of gripper arms. The invasive instrument fixing member (210) including the gripper structure may have each of the pair of gripper arms in an open state before the invasive instrument (IA) is coupled, and when the invasive instrument (IA) is inserted between the gripper arms, each of the gripper arms may come closer to each other and be in a closed state to fix the invasive instrument (IA).

[0082] However, the above-described structures are examples, so any structure to which an invasive device (IA) can be coupled can be included in the embodiment of the invasive device fixing part (210) of the present disclosure.

[0083] The second adapter part (200) may further include a moving part (220).

[0084] One side of the moving part (220) may be connected to the invasive device fixing part (210). The other side of the moving part (220) may be connected to the guide part (300) to be described later. At this time, the other side of the moving part (220) may be coupled to the guide part (300) in a form that allows sliding movement along the longitudinal direction of the guide part (300).

[0085] Based on the state in which the invasive device (IA) is coupled to the invasive device fixing member (210), the longitudinal direction of the guide member (300) can be arranged parallel to the longitudinal direction of the invasive device (IA). Accordingly, the moving member (220) can slide along the longitudinal direction of the invasive device (IA).

[0086] When the moving part (220) slides based on the state in which the invasive device (IA) is connected to the invasive device fixing part (210), the invasive device (IA) can slide forward or backward while the longitudinal axis is fixed.

[0087] For example, advancement of an invasive device (IA) can insert a catheter sheath (CS) into the body. For example, retreatment of an invasive device (IA) can expel a guide needle (GN) out of the body.

[0088] For example, advancement of an invasive device (IA) can insert a blood collection needle (IV) into the body. For example, retreatment of an invasive device (IA) can expel a blood vessel (VA) out of the body.

[0089] The guide part (300) can be connected to the second adapter part (200).

[0090] The guide part (300) can serve to guide the second adapter part (200) to move along the longitudinal direction of the invasive device (IA).

[0091] For example, the guide member (300) may be configured as a rail member having an open bottom and a catch formed at the bottom of both side walls. In this case, the upper end of the moving member (220) may be configured in a shape corresponding to the rail member so that it can be fitted into the rail member.

[0092] Through this structure, the second adapter part (200) can be slidably moved along the longitudinal direction of the guide part (300). In other words, the second adapter part (200) can be slidably moved along the longitudinal direction of the invasive device (IA) coupled thereto.

[0093] However, since the above-described structure is an example, any structure that can be combined with the moving part (220) and slide the second adapter part (200) can be included in the embodiment of the guide part (300) according to the present disclosure.

[0094] The guide portion (300) can be accommodated inside the adapter body (120). The guide portion (300) can be formed to extend along the length of the adapter body (120). That is, the guide portion (300) can be formed to extend in the front-back direction.

[0095] The restriction part (400) can be connected to the guide part (300).

[0096] The restriction member (400) serves to limit the movement distance of the second adapter member (200). To this end, at least a portion of the restriction member (400) may be placed on the movement path of the second adapter member (200) to limit the movement of the second adapter member (200).

[0097] More specifically, the restriction part (400) may include a restriction part body (410). The restriction part body (410) may be formed in a cylindrical shape. The restriction part body (410) may be accommodated in a space within the adapter body (120). The restriction part body (410) may be arranged parallel to the guide part (300), but may be arranged above the guide part (300).

[0098] A spiral stopper moving groove (411a) may be formed along the outer circumference of the restricted body (410). A stopper (430), which will be described later, may be coupled to the stopper moving groove (411a).

[0099] The restriction (400) may further include a rotary knob (420).

[0100] The rotary knob (420) can be connected to one longitudinal side of the restrictor body (410). The rotary knob (420) can be exposed to the outside of the adapter body (120). With this configuration, a user can hold and rotate the rotary knob (420).

[0101] The rotary knob (420) may be formed in a cylindrical shape coaxial with the restriction body (410). Accordingly, when the rotary knob (420) is rotated, the restriction body (410) connected to the rotary knob (420) may also rotate together in conjunction.

[0102] FIG. 4 is a drawing showing a rotation knob of an invasive instrument guide device according to one embodiment of the present disclosure.

[0103] Referring to FIG. 4, a plurality of numbers indicating the specifications of the needle included in the invasive device (IA) may be displayed on the rotary knob (420). For example, numbers indicating the gauge (G) of the needle may be displayed along the outer circumference of the rotary knob (420). In this case, each gauge indicates a needle that is thicker and longer as the number decreases. In another embodiment, a number indicating the length of the needle may also be displayed on the rotary knob (420).

[0104] An indicator (IC) may be displayed on one side of the adapter body (120) where the rotary knob (420) is positioned. The number indicated by the indicator (IC) represents the specification of the selected needle, and the user may rotate the rotary knob (420) so that the indicator (IC) points to a needle of the desired specification.

[0105] Again, referring to FIG. 3, the restriction (400) may further include a stopper (430).

[0106] The stopper (430) may be connected to one radial side of the restriction body (410). The stopper (430) may be positioned on the movement path of the second adapter part (200). The stopper (430) may be coupled to the restriction body (410) so as to protrude toward the radial outer side of the restriction body (410). The stopper (430) may protrude toward the guide part (300).

[0107] The stopper (430) can have one side connected to the stopper moving home (411a) and the other side connected to the guide part (300).

[0108] More specifically, one side of the stopper (430) can be movably coupled to the stopper moving groove (411a). The other side of the stopper (430) can be coupled to the guide part (300) in a form that surrounds the guide part (300).

[0109] At this time, the other side of the stopper (430) may be configured to have a structure that can slide along the guide part (300) similar to the above-described moving part (220). In an embodiment where the guide part (300) includes a rail member, some components arranged on the other side of the stopper (430) may be configured in a form that can be fitted into the rail member.

[0110] With this configuration, when the restriction body (410) is rotated, one side of the stopper (430) moves along the stopper moving groove (411a), and accordingly, the stopper (430) can be moved forward or backward along the longitudinal direction of the guide part (300). In other words, the stopper (430) can be moved forward or backward along the longitudinal direction of the invasive device.

[0111] FIG. 5 is a drawing for explaining the movement of a stopper in an invasive device guide device according to one embodiment of the present disclosure.

[0112] The rotary knob (420) can be rotated by the user. As described above, the user can rotate the rotary knob (420) so that the indicator (IC) indicates the size of the needle desired to be inserted into the living body.

[0113] The restriction body (410) can be rotated in conjunction with the rotary knob (420). When the restriction body (410) is rotated, the stopper (430) can be moved along the stopper moving groove (411a) that spirally surrounds the outer surface of the restriction body (410). That is, the stopper (430) can be moved forward or backward along the longitudinal direction of the invasive device (IA) by the rotation of the rotary knob (420).

[0114] Here, the movement along the longitudinal direction of the invasive device (IA) means that the restriction body (410), the guide part (300), and the invasive device (IA) are arranged in parallel based on the state in which the invasive device (IA) is coupled with the second adapter part (200). Therefore, from another perspective, the stopper (430) can be moved along the longitudinal direction of the restriction body (410). From another perspective, the stopper (430) can be moved along the longitudinal direction of the guide part (300).

[0115] Meanwhile, the restriction body (410) may include a first body (411) in which a stopper moving groove (411a) is formed, and a second body (412) connected between the rotary knob (420) and the first body (411). The second body (412) may be configured in a cylindrical shape with a smaller diameter than the first body (411).

[0116] Referring again to FIG. 3, the stopper (430) may be positioned on the movement path of the second adapter portion (200) to limit the movement of the second adapter portion (200). Specifically, the stopper (430) may be positioned to face the moving portion (220) to limit the movement of the moving portion (220) so that it can no longer advance along the longitudinal direction of the invasive device (IA).

[0117] As described with reference to Fig. 5, the position of the stopper (430) can be varied. Accordingly, the movable distance of the second adapter portion (200) limited by the stopper (430) can also be varied.

[0118] More specifically, when the stopper (430) is positioned close to the front end of the restriction body (410), the movable distance of the second adapter part (200) becomes relatively long. When the stopper (430) is positioned close to the rear end of the restriction body (410), the movable distance of the second adapter part (200) becomes relatively short.

[0119] At this time, the position of the stopper (430) according to the rotation angle of the rotary knob (420) can be appropriately set in advance so that the catheter sheath (CS) can be inserted to the exact target point.

[0120] FIG. 6 is a drawing for explaining an example in which the insertion of an invasive instrument having a first specification is guided by an invasive instrument guide device according to one embodiment of the present disclosure.

[0121] Referring to Fig. 6, the invasive device (IA_1) of the first specification may have a 24G needle. The invasive device (IA_1) of the first specification may include a guide needle (GN_1) and a catheter sheath (CS_1).

[0122] The 24G needle is relatively thin and short.

[0123] First, the guide needle (GN_1) is inserted into and fixed to the invasive device fixing part (210). The catheter sheath (CS_1) is exposed toward the front of the invasive device fixing part (210). The invasive device (IA_1) and the guide part (300) may be arranged in parallel.

[0124] The user can rotate the rotary knob (420) so that the indicator (IC) points to 24. The position of the stopper (430) can be determined by the rotation of the rotary knob (420). At this time, since the length of the needle is short, the movable distance of the second adapter part (200) must be relatively long in order for the catheter sheath (CS_1) to be inserted to the same target point. That is, the stopper (430) can be placed close to the front end of the restriction body (410). (See (a) of FIG. 6)

[0125] When the user pushes the second adapter part (200) forward, the second adapter part (200) slides along the guide part (300). As a result, the invasive device (IA_1) can move forward while maintaining its longitudinal axis. In other words, the invasive device (IA_1) can be inserted into a living body while the angle formed by the movement path and the radiation axis (PN) of the ultrasound is fixed.

[0126] As a result, there is an effect that the movement path of the invasive device (IA_1) is guided so that the needle is accurately inserted into the target location.

[0127] The second adapter part (200), which was moving together with the invasive device (IA_1), encounters the stopper (430) and stops moving forward. At the point where the movement of the second adapter part (200) is restricted by the stopper (430), the end of the catheter sheath (CS_1) is inserted exactly into the target point. (See (b) of FIG. 6)

[0128] Afterwards, the user can pull the second adapter part (200) to separate the catheter sheath (CS_1) and the guide needle (GN_1) by retracting the guide needle (GN_1) while leaving the catheter sheath (CS_1) in place.

[0129] FIG. 7 is a drawing for explaining an example in which the insertion of an invasive instrument having a second specification is guided by an invasive instrument guide device according to one embodiment of the present disclosure.

[0130] Referring to Fig. 7, the second standard invasive device (IA_2) may have an 18G needle. The second standard invasive device (IA_2) may include a guide needle (GN_2) and a catheter sheath (CS_2).

[0131] The 18G needle is relatively thick and long.

[0132] First, the guide needle (GN_2) is inserted into and fixed to the invasive device fixing part (210). The catheter sheath (CS_2) is exposed toward the front of the invasive device fixing part (210). The invasive device (IA_2) and the guide part (300) may be arranged in parallel.

[0133] The user can rotate the rotary knob (420) so that the indicator (IC) points to 18. The position of the stopper (430) can be determined by the rotation of the rotary knob (420). At this time, since the length of the needle is long, the movable distance of the second adapter part (200) must be relatively short in order for the catheter sheath (CS_2) to be inserted to the same target point. That is, the stopper (430) can be placed close to the rear end of the restriction body (410) (see (a) of FIG. 7).

[0134] When the user pushes the second adapter part (200) forward, the second adapter part (200) slides along the guide part (300). As a result, the invasive device (IA_2) can move forward while maintaining its longitudinal axis. In other words, the invasive device (IA_2) can be inserted into a living body while the angle formed by the movement path and the radial axis (PN) of the ultrasound is fixed.

[0135] As a result, there is an effect that the movement path of the invasive device (IA_2) is guided so that the needle is accurately inserted into the target location.

[0136] The second adapter part (200), which was moving together with the invasive device (IA_2), encounters the stopper (430) and stops moving forward. At the point where the movement of the second adapter part (200) is restricted by the stopper (430), the end of the catheter sheath (CS_2) is inserted exactly into the target point (see (b) of FIG. 7).

[0137] Afterwards, the user can pull the second adapter part (200) to separate the catheter sheath (CS_2) and the guide needle (GN_2) by retracting the guide needle (GN) while leaving the catheter sheath (CS_2) in place.

[0138] So far, an embodiment has been described in which the stopper (420) moves along the stopper moving groove (411a) formed on the outer surface of the restricted body (410).

[0139] The present invention is not limited thereto, and as another embodiment, the stopper (420) may be moved along a linear rail formed in the restriction body (410). In this case, the shape of the restriction body (410) is not limited to a cylindrical shape. As another embodiment, a driving motor for moving the stopper (420) may be provided, and the stopper (420) may be moved using the rotational force of the driving motor.

[0140] In addition, an embodiment of the present invention may include an embodiment in which the position of the stopper (420) can be varied to accurately intrude the invasive device (IA) into the target location.

[0141] As described above, the invasive device guide device according to one embodiment of the present disclosure includes a second adapter part to which the invasive device is coupled and a guide part that guides the second adapter part to slide along the longitudinal direction of the invasive device, thereby having the effect of allowing the needle to be accurately inserted into the target position.

[0142] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the movable distance of the second adapter part is variable, so that even if the length of the needle changes, the needle can always be accurately inserted into the same target position.

[0143] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the joint portion of the invasive instrument is fixed to the second adapter portion and the needle portion that directly invades the living body is exposed to the outside of the invasive instrument guide device, so that a part of the needle is not covered by the invasive instrument guide device, and thus even a needle having a short length can be inserted to the target position with its entire length.

[0144] In addition, the invasive instrument guide device according to one embodiment of the present disclosure is configured such that the joint portion of the invasive instrument is fixed to the second adapter portion and the needle portion that directly invades the living body is exposed to the outside of the invasive instrument guide device, thereby preventing the needle from coming into contact with one component of the invasive instrument guide device, thereby enabling the invasive instrument to always be hygienically performed.

[0145] The various embodiments of the present disclosure described above can be combined with additional embodiments and modified within the scope understood by those skilled in the art in light of the detailed description above. It should be understood that the embodiments of the present disclosure are illustrative in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined manner. Accordingly, all changes or modifications derived from the meaning, scope, and equivalent concepts of the claims of the present disclosure should be construed as being included within the scope of the present disclosure.

Claims

1. In the invasive instrument guide device, A first adapter part coupled to a probe that irradiates an ultrasonic beam toward a target location and fixes the location of the probe; A second adapter part coupled to the above invasive device and moved together with the above invasive device; A guide part connected to the second adapter part and guiding the second adapter part to move along the length direction of the invasive device; and A limiting member including a stopper positioned on the movement path of the second adapter member to limit the movement distance of the second adapter member, The above limitation is characterized in that it is controlled so that the movable distance of the second adapter part is changed. Invasive instrument guide device.

2. In paragraph 1, The above first adapter part, A probe fixing part to which the above probe is coupled and fixed; and An adapter body connected to the probe fixing portion and accommodating the guide portion and the restriction portion in an internal space; Invasive instrument guide device.

3. In paragraph 1, The above second adapter part, An invasive device fixing part to which the above invasive device is combined and fixed; and A moving part having one side connected to the fixing part of the invasive device and the other side connected to the guide part and sliding along the longitudinal direction; Invasive instrument guide device.

4. In paragraph 3, The above invasive device is, A needle part that invades a living body and a connecting part that is connected to the needle part and is connected to the invasive device fixing part, Invasive instrument guide device.

5. In paragraph 1, The above restrictions are, limited body; and Further comprising a rotary knob connected to one longitudinal side of the above-mentioned restricted body and rotated by an external force, The above stopper is connected to one radial side of the restriction body and is placed on the movement path of the second adapter part. Invasive instrument guide device.

6. In paragraph 5, The above-mentioned limited body is, It has a cylindrical shape and has a spiral stopper moving groove formed along the outer circumference. Invasive instrument guide device.

7. In paragraph 6, The above stopper, One side is connected to the stopper moving home and the other side is connected to the guide part. Invasive instrument guide device.

8. In paragraph 5, The above rotary knob has: Multiple numbers indicating the gauge size or length of the needle included in the above invasive device are displayed, Invasive instrument guide device.

9. In paragraph 5, The above-mentioned limited body is, When the above rotary knob is rotated, it rotates together in conjunction, Invasive instrument guide device.

10. In paragraph 5, The above stopper, When the above rotary knob is rotated, it moves forward or backward along the longitudinal direction. Invasive instrument guide device.

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