JPWO2019240110A1 - Puncture aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a puncture assisting tool capable of making a posture in which a hand can be easily punctured during dTRI while suppressing careless movement of the radial artery of the hand. A puncture aid 100 is a puncture aid that assists in puncturing a radial artery of a patient's hand H1. The puncture aid has a thumb fixing portion 130 for fixing the thumb f1 of the hand, and a grip portion 120 provided with the thumb fixing portion and gripped by fingers f2 to f5 other than the thumb. [Selection diagram] Fig. 1

Description

The present invention relates to a puncture aid.

As one of the catheter procedures, a blood vessel in the patient's arm (for example, the radial artery) is punctured, and various medical elongated bodies are introduced into the blood vessel through the puncture site formed in the blood vessel in the patient's arm to cause a lesion. Techniques for treating or treating a site are known.

At the time of puncture, various instruments may be used to make the puncture site suitable for puncture. When puncturing the radial artery of the patient's arm as described above, an instrument having a pillow on which the patient's arm is placed and a fixture for fixing the arm to the pillow can be used (the following patent). Reference 1).

Japanese Unexamined Patent Publication No. 2006-109963

In recent years, a catheter technique by dTRI (distal transient intervention) has been attempted in which the radial artery located near the base of the thumb of the hand is punctured instead of the forearm instead of the above-mentioned site, and treatment is performed through the punctured site. ..

In the case of dTRI, it is desirable to hold the hand at the time of puncture. Further, in the case of dTRI, when the thumb moves freely, the radial artery of the hand moves accordingly, and it is difficult to perform puncture accurately. However, an instrument has not yet been developed that suppresses the careless movement of the radial artery of the hand when puncturing the radial artery of the hand and makes it easy to puncture the hand.

Therefore, an object of the present invention is to provide a puncture assisting tool that can prevent the radial artery of the hand from inadvertently moving and can easily puncture the hand during dTRI.

The puncture assisting tool according to the present invention that achieves the above object is a piercing assisting tool that assists the puncture of the radial artery of the patient's hand, and is provided with a thumb fixing portion for fixing the thumb of the hand and the thumb fixing portion. It also has a grip that is gripped by a finger other than the thumb.

According to the puncture assisting tool according to the present invention, it is possible to suppress the careless movement of the radial artery of the hand and to make the posture easy to puncture the hand during dTRI.

It is a perspective view which shows the puncture aid which concerns on 1st Embodiment of this invention. It is a perspective view which shows the thumb fixing part and the grip part of the puncture aid which concerns on 1st Embodiment of this invention. It is a side view which shows the end part of the grip part of the puncture aid which concerns on 1st Embodiment of this invention. It is a side view which shows the thumb fixing part of the puncture aid which concerns on 1st Embodiment of this invention. It is a perspective view which shows the thumb fixing part and the grip part of the puncture assisting tool which concerns on modification 1 of 1st Embodiment of this invention. It is a perspective view which shows the puncture aid which concerns on the modification 2 of the 1st Embodiment of this invention. It is a side view which shows the end part of the grip part of the puncture assisting tool which concerns on the modification 2 of the 1st Embodiment of this invention. It is a side view which shows the thumb fixing part of the puncture aid which concerns on modification 2 of 1st Embodiment of this invention. It is a top view which shows the puncture aid which concerns on 2nd Embodiment of this invention. It is a side view which shows the puncture aid which concerns on 2nd Embodiment of this invention. It is a top view which shows the puncture aid which concerns on the modification of 2nd Embodiment of this invention. It is a perspective view which shows the puncture aid which concerns on 3rd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

<First Embodiment>
1 to 4 are views provided for explaining the puncture assisting tool 100 according to the first embodiment of the present invention.

As shown in FIG. 1, the puncture aid 100 has, in the present embodiment, the radial artery running on the instep side of the patient's hand H1 (particularly the radial artery in the snuff box or the distal radial artery on the fingertip side of the snuff box). ) Assists the puncture.

Here, the radial artery in the snuff box is the radial artery at the site located between the extensor pollicis longus tendon and the extensor pollicis longus tendon on the peripheral side of the radial artery (Netter Original 4th Edition Anatomy). The radial artery in the key cigarette holder), hereinafter referred to as s-RA (shown by P1 in FIG. 1). The distal radial artery is the dorsal carpal branch of the radial artery and is the radial artery located between the extensor pollicis longus tendon and the extensor carpi radialis longus tendon, hereinafter referred to as d-RA (in FIG. 1). (Indicated by P2). In the description of the embodiment, an example of puncturing the radial artery of the patient's left hand will be described, but the hand H1 to which the puncture aid 100 is used may be the right hand.

The puncture assisting tool 100 includes a forearm fixing portion 110, a grip portion 120, a thumb fixing portion 130, and an operating portion 140, which are outlined with reference to FIG. Hereinafter, each part of the puncture aid 100 will be described in detail.

(Forearm fixing part)
As shown in FIG. 1, the forearm fixing portion 110 is configured to be able to fix the forearm H2.

In the present embodiment, the forearm fixing portion 110 includes a forearm pedestal 111 on which the forearm H2 is placed, and a plurality of fixtures 112 for fixing the forearm H2 to the forearm pedestal 111.

The forearm pedestal 111 has a shape extending along one direction (hereinafter referred to as the Y direction) so that the forearm H2 can be placed. In the present embodiment, the forearm pedestal 111 is formed with an internal space capable of accommodating the grip actuator 122 of the grip portion 120 described later. Although FIG. 1 shows an example in which the forearm pedestal 111 has a rectangular shape, the outer shape of the forearm pedestal 111 is not particularly limited as long as it extends along one direction.

In the following description, the width direction of the forearm pedestal 111 orthogonal to the Y direction, which is the longitudinal direction of the forearm pedestal 111, is referred to as the X direction, and the thickness direction of the forearm pedestal orthogonal to the Y direction and the X direction is referred to as the Z direction. Refer to.

The fixture 112 is not particularly limited as long as the forearm H2 can be fixed to the forearm pedestal 111, but can be configured by, for example, a belt or a rubber band provided with a length adjusting mechanism.

The configuration of the forearm fixing portion 110 is not limited to the above as long as the forearm H2 can be fixed. For example, the forearm fixing portion 110 may be formed by forming a groove portion into which the forearm H2 can be fitted in the forearm pedestal 111 without providing the fixing tool 112.

(Grip part)
As shown in FIG. 1, the grip portion 120 is provided with a thumb fixing portion 130 and is configured to be gripped by fingers other than the thumb f1 (index finger f2, middle finger f3, ring finger f4, little finger f5). .. In addition, in this specification, "grasping" means a state in which at least the fingertips of fingers f2 to f5 other than the thumb f1 are bent toward the palm side.

In the present embodiment, as shown in FIG. 1, the grip portion 120 is provided at one end of the grip 121 and the grip 121 gripped by the other fingers f2 to f5, and the grip 121 is used as a forearm with the grip 121 as a starting point. It has a grip actuator 122 (corresponding to a grip adjusting portion) that can be tilted with respect to the fixed portion 110. Hereinafter, each portion of the grip portion 120 will be described in detail.

As shown in FIG. 2, the grip 121 is composed of a rod-shaped member. On the side surface of the grip 121, a plurality of groove portions 121a on which each of the fingers f2 to f5 other than the thumb can be arranged are formed. However, the groove 121a may not be formed on the grip 121. Further, a finger cot or the like into which other fingers f2 to f5 can be inserted may be provided on the side surface of the grip 121.

The grip 121 is not particularly limited, but can be made of a known metal material or plastic material. Further, in the region of the grip 121 that comes into contact with other fingers f2 to f5, cooling components such as methyl salicylate, menthol, and menthol oil, and acrylic, silicone, polyvinyl, polyester, and polyurethane that can be adhered to the body surface are present. An adhesive layer containing a known adhesive component such as a system may be provided.

In the present embodiment, the grip actuator 122 has a first rotation axis 123, a second rotation axis 124, and a third rotation axis 125 that are orthogonal to each other, as shown in FIG. Each shaft 123 to 125 is driven by a servomotor or the like.

The first rotation shaft 123 can tilt (turn) the grip 121 in the first direction a1. The second rotation axis 124 is capable of tilting (turning) the grip 121 and the first rotation axis 123 in the second direction a2 orthogonal to the first direction a1. The third rotation axis 125 is capable of turning the grip 121, the first rotation axis 123, and the second rotation axis 124 in the third direction a3 orthogonal to the first direction a1 and the second direction a2.

Therefore, in the present embodiment, as shown in FIG. 1, the grip actuator 122 tilts the grip 121 in an arbitrary direction starting from one end of the grip 121, and rotates the grip 121 starting from one end of the grip 121. be able to. Specifically, for example, the grip actuator 122 can incline the grip 121 in the X direction (indicated by the arrow d1 in the figure). Further, the grip actuator 122 can incline the grip 121 in the Y direction (indicated by the arrow d2 in the figure). Further, the grip actuator 122 can rotate the grip 121 around the axis b1 along the Z direction (indicated by the arrow d3 in the figure).

However, the configuration of the grip actuator 122 is not particularly limited as long as it is provided at the end of the grip 121 and the grip 121 can be tilted in at least one direction. Further, the puncture assist tool 100 does not include the grip actuator 122, and the grip 121 may be fixed to the forearm pedestal 111.

(Thumb fixing part)
As shown in FIG. 1, the thumb fixing portion 130 is configured to fix the thumb f1.

In the present embodiment, the thumb fixing portion 130 is a thumb pedestal 131 to which the thumb f1 is fixed and a pedestal actuator 132 (pedestal adjusting portion) capable of adjusting the fixed position of the thumb pedestal 131 with respect to the grip portion 120, as shown in FIG. Equivalent to) and. In this embodiment, the thumb pedestal 131 and the pedestal actuator 132 are provided on one end surface of the grip 121 in the longitudinal direction. Hereinafter, the configuration of each part of the thumb fixing part 130 will be described in detail.

In the present embodiment, the thumb pedestal 131 is formed with a groove 131a into which the thumb f1 can be fitted, as shown in FIG. The thumb fixing portion 130 fixes the thumb f1 by fitting the thumb f1 into the groove portion 131a of the thumb pedestal 131. However, the method in which the thumb fixing portion 130 fixes the thumb f1 is not particularly limited. For example, the thumb fixing portion 130 may fix the thumb f1 to the thumb pedestal 131 by an annular member such as a rubber band, a finger cot, a band having a length adjusting mechanism, or a fixing tool such as an adhesive.

The thumb pedestal 131 is not particularly limited, but can be made of a known metal material or plastic material. Further, in the region of the thumb pedestal 131 that comes into contact with the thumb f1, cooling components such as methyl salicylate, menthol, and menthol oil, and acrylic, silicone, polyvinyl, polyester, polyurethane, etc. that can be adhered to the body surface are used. An adhesive layer containing a known adhesive component may be provided.

As shown in FIG. 4, the pedestal actuator 132 is attached to a long support member 133 whose one end is attached to the thumb pedestal 131 and the other end of the support member 133, and starts from the other end of the support member 133. It has a pedestal inclined portion 134 that can incline the support member 133 with respect to the grip portion 120.

In the present embodiment, the support member 133 has a function as a linear motion mechanism capable of approaching and separating the thumb pedestal 131 from the grip portion 120. In the present embodiment, the support member 133 can move the thumb pedestal 131 along the longitudinal direction L of the support member 133. The support member 133 can be configured to have, for example, a linear bush, a cylinder stroke, a ball screw, or the like as a linear motion mechanism.

In the present embodiment, the pedestal inclined portion 134 has a first rotation axis 136, a second rotation axis 137, and a third rotation axis 138 that are orthogonal to each other as shown in FIG. Each shaft 136 to 138 is driven by a servomotor or the like.

The first rotation shaft 136 is capable of tilting (turning) the support member 133 in the first direction a4. The second rotation shaft 137 can tilt (turn) the support member 133 and the first rotation shaft 136 in the second direction a5 orthogonal to the first direction a4. The third rotation shaft 138 is capable of turning the support member 133, the first rotation shaft 136, and the second rotation shaft 137 in the third direction a6 orthogonal to the first direction a4 and the second direction a2.

Therefore, as shown in FIG. 2, the pedestal inclined portion 134 tilts the support member 133 in an arbitrary direction starting from the other end of the support member 133, and causes the support member 133 to start from the other end of the support member 133. Can be swiveled. Specifically, for example, the pedestal inclined portion 134 may incline the support member 133 in the direction d4 in which the thumb pedestal 131 approaches and separates from the groove portion 121a of the grip 121 (the direction in which the thumb pedestal 131 approaches and separates from the other fingers f2 to f5). it can. Further, the pedestal inclined portion 134 can incline the support member 133 in the direction d5 that intersects the direction d4 (the direction that approaches and separates from the side surface of the base of the index finger f2). Further, the pedestal inclined portion 134 can rotate the support member 133 around the axis b2 along the longitudinal direction of the grip 121 (indicated by the arrow d6 in the figure).

However, the configuration of the pedestal inclined portion 134 is not particularly limited as long as the support member 133 can be inclined in at least one direction.

The configuration of the pedestal actuator 132 is not particularly limited as long as the fixed position of the thumb pedestal 131 with respect to the grip portion 120 can be adjusted. For example, the support member 133 of the pedestal actuator 132 does not have to have a function as a linear motion mechanism.

(Operation unit)
The operation unit 140 controls the operations of the grip actuator 122 and the pedestal actuator 132 by the operation of a user such as a doctor or a nurse. The operation unit 140 adjusts the inclination of the grip 121 with respect to the forearm fixing portion 110 (see FIG. 1) by the operation of the user. The operation unit 140 adjusts the inclination of the support member 133 with respect to the grip 121 and the position of the thumb pedestal 131 in the longitudinal direction L of the support member 133 by the operation of the user (see FIG. 2).

In the present embodiment, the operation unit 140 is composed of a plurality of pedal-type switches 141 that can be operated by the user with their feet, as shown in FIG. However, the configuration of the operation unit 140 is not particularly limited as long as the operations of the grip actuator 122 and the pedestal actuator 132 can be controlled by the operation of the user. For example, the operation unit 140 may be configured by a controller that can be operated by fingers, a keyboard, or the like.

(Example of use)
Next, an example of using the puncture assisting tool 100 according to the present embodiment will be described.

First, as shown in FIG. 1, a user such as a doctor or a nurse places the patient's forearm H2 on the forearm pedestal 111 of the forearm fixing portion 110, and the forearm is placed by the fixture 112 of the forearm fixing portion 110. H2 is fixed to the forearm pedestal 111.

Next, the user causes the other fingers f2 to f5 of the patient to grip the grip 121 of the grip portion 120, and fixes the thumb f1 to the thumb pedestal 131 of the thumb fixing portion 130.

Next, the user disinfects the patient's planned puncture site and its surroundings, and anesthetizes the patient.

Next, the user operates a plurality of pedal-type switches 141 of the operation unit 140 to incline the grip 121 with respect to the forearm fixing portion 110, the inclination of the support member 133 with respect to the grip portion 120, and the length of the support member 133. The position of the thumb pedestal 131 in the direction L is adjusted.

Next, the doctor who is the user punctures the s-RA (shown by P1 in FIG. 1) and d-RA (shown by P2 in FIG. 1) of the hand H1 with a puncture needle (not shown).

Next, the user doctor inserts a guide wire (not shown) into the s-RA or d-RA punctured through the lumen of the puncture needle. Next, the operator removes the puncture needle from the living body.

Next, the user doctor introduces the introducer sheath and dilator (not shown) into s-RA or d-RA using a guide wire. Next, the operator removes the guide wire and the dilator from the living body. After that, the doctor inserts a medical device (not shown) such as a guide wire or a catheter into the blood vessel via the introducer sheath to perform diagnosis / treatment and the like. Alternatively, the physician may puncture the guiding sheath directly along the guide wire without using the introducer sheath.

During the procedure after the puncture, the user operates a plurality of pedal-type switches 141 of the operation unit 140 to tilt the grip 121 with respect to the forearm fixing portion 110, tilt the support member 133 with respect to the grip 121, and the like. The position of the thumb pedestal 131 in the longitudinal direction L of the support member 133 may be adjusted. Thereby, the posture of the hand H1 can be adjusted during the procedure. In particular, the inclination of the grip 121 with respect to the forearm fixing portion 110, the inclination of the support member 133 with respect to the grip portion 120, and the position of the thumb pedestal 131 in the longitudinal direction L of the support member 133 so that the hand H1 can be in a comfortable posture for the patient. May be adjusted to. As a result, the tension of the patient can be relieved and the convulsions of the hand H1 can be suppressed.

As described above, the puncture assisting tool 100 according to the above embodiment is a puncturing assisting tool that assists the puncture of the radial artery of the patient's hand H1. The puncture aid 100 has a thumb fixing portion 130 for fixing the thumb f1 of the hand H1, a thumb fixing portion 130, and a grip portion 120 gripped by fingers f2 to f5 other than the thumb f1. Therefore, the puncture aid 100 can prevent the radial artery of the hand H1 from inadvertently moving by fixing the thumb f1 with the thumb fixing portion 130. Further, the other fingers f2 to f5 grip the grip portion 120, and the hand H1 is in a posture suitable for dTRI. As described above, according to the puncture aid 100, the hand H1 can be easily punctured during dTRI while suppressing the careless movement of the radial artery of the hand H1.

Further, the thumb fixing portion 130 has a thumb pedestal 131 to which the thumb f1 is fixed and a pedestal actuator 132 capable of adjusting the fixed position of the thumb pedestal 131 with respect to the grip portion 120. Therefore, the puncture assisting tool 100 can adjust the fixed position of the thumb f1 so that the hand H1 can be easily punctured according to the individual difference of the patient.

Further, the pedestal actuator 132 is attached to a long support member 133 whose one end is attached to the thumb pedestal 131 and the other end of the support member 133, and grips the support member 133 starting from the other end of the support member 133. It has a pedestal inclined portion 134 that can be inclined with respect to 120. Therefore, the puncture aid 100 can adjust the fixed position of the thumb f1 by inclining the support member 133. As a result, the puncture aid 100 can be in a posture in which the hand H1 can be easily punctured according to the individual difference of the patient.

Further, the pedestal actuator 132 has a support member 133 that functions as a linear motion mechanism capable of approaching and separating the thumb pedestal 131 from the grip portion 120. Therefore, the puncture aid 100 can adjust the fixed position of the thumb f1. As a result, the puncture aid 100 can be in a posture in which the hand H1 can be easily punctured according to the individual difference of the patient.

Further, the puncture assist tool 100 further includes an operation unit 140 that controls the operation of the pedestal actuator 132 by the operation of the user. Therefore, the user can adjust the fixed position of the thumb pedestal 131 by operating the pedestal actuator 132 via the operation unit 140 without the patient moving the hand H1.

Further, the puncture assist device 100 further has a forearm fixing portion 110 capable of fixing the patient's forearm H2. Therefore, the puncture aid 100 can further suppress the movement of the radial artery of the hand H1 during puncture due to the careless movement of the patient's forearm H2.

Further, the grip portion 120 is provided at one end of the grip 121 gripped by the other fingers f2 to f5 and one end of the grip 121, and the grip 121 can be tilted with respect to the forearm fixing portion 110 starting from one end of the grip 121. It has an actuator 122 and. Therefore, the puncture aid 100 can adjust the posture of the hand H1 holding the grip 121. As a result, the puncture aid 100 can be in a posture in which the hand H1 can be easily punctured according to the individual difference of the patient.

<Modification 1 of the first embodiment>
FIG. 5 is a diagram provided for explaining the puncture assisting tool 100a according to the first modification of the first embodiment.

The puncture assisting tool 100a according to the first modification of the first embodiment is different from the puncturing assisting tool 100 according to the first embodiment in the attachment position of the thumb fixing portion 130a to the grip 121.

The puncture assisting tool 100a has a forearm fixing portion 110 (not shown), a grip portion 120, a thumb fixing portion 130a, and an operating portion 140 (not shown), which are outlined with reference to FIG. The same configuration as the puncture assisting tool 100 according to the first embodiment is designated by the same reference numerals, and detailed description thereof will be omitted.

(Thumb fixing part)
In this embodiment, the thumb fixing portion 130a is attached to the side surface of the grip 121 as shown in FIG. The thumb fixing portion 130a has a thumb pedestal 131 and a pedestal actuator 132 whose position of the thumb pedestal 131 with respect to the grip portion 120 can be adjusted.

The pedestal actuator 132 includes a long support member 133 whose one end is attached to the thumb pedestal 131, and a pedestal inclined portion 134 which can tilt the support member 133 with respect to the grip portion 120 starting from the other end of the support member 133. , Have.

Similar to the first embodiment, the pedestal inclined portion 134 inclines the support member 133 in an arbitrary direction starting from the other end of the support member 133, and rotates the support member 133 starting from the other end of the support member 133. Can be made to. Specifically, the pedestal inclined portion 134 may incline the support member 133 in the direction d7 in which the thumb pedestal 131 approaches and separates from the groove portion 121a of the grip 121 (the direction in which the thumb pedestal 131 approaches and separates from the fingertips of the other fingers f2 to f5). it can. Further, the pedestal inclined portion 134 can incline the support member 133 in the direction d8 (the direction in which the other fingers f2 to f5 are lined up) intersecting the direction d7. Further, the pedestal inclined portion 134 can rotate the support member 133 around the axis b3 along the lateral direction of the grip 121 (indicated by the arrow d9 in the figure).

<Modification 2 of the first embodiment>
6 to 7B are views provided for explaining the puncture assisting tool 100b according to the second modification of the first embodiment.

The puncture assisting tool 100b according to the second modification of the first embodiment is different from the puncturing assisting tool 100 according to the first embodiment in that the operation unit 140 is not provided.

The puncture aid 100b has a forearm fixing portion 110, a grip portion 120b, and a thumb fixing portion 130b, which are outlined with reference to FIG. Hereinafter, each part of the puncture aid 100b will be described in detail. The same components as those of the puncture assisting tool 100 according to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

(Grip part)
In the present embodiment, the grip portion 120b has a grip 121 and a grip adjusting portion 122b provided at one end of the grip 121 and capable of tilting the grip 121 with respect to the forearm fixing portion 110, as shown in FIG. 7A. ..

In the present embodiment, the grip adjusting portion 122b is formed of a sphere as shown in FIG. 7A. The grip adjusting portion 122b is slidably fitted into the spherical groove portion 111b formed in the forearm pedestal 111. That is, the grip adjusting portion 122b and the forearm pedestal 111 are in a ball-to-even relationship. Therefore, as shown in FIG. 6, by applying an operating force to the grip 121, the grip adjusting portion 122b can incline the grip 121 in an arbitrary direction (for example, it is indicated by arrows d1 and d2 in the figure). .. Further, by applying an operating force to the grip 121, the grip adjusting portion 122b can rotate the grip 121 starting from the end portion of the grip 121 (indicated by an arrow d3 in the figure).

(Thumb fixing part)
The thumb fixing portion 130b is detachably attached to the grip portion 120b. Therefore, the thumb fixing portion 130b can be removed and sterilized, the used thumb fixing portion 130b can be replaced with a new one, or the thumb fixing portion 130b suitable for the size of the patient's thumb f1 can be replaced. The thumb fixing portion 130b does not have to be detachable from the grip portion 120b.

In the present embodiment, the thumb fixing portion 130b has a thumb pedestal 131 and a pedestal adjusting portion 132b whose position of the thumb pedestal 131 can be adjusted with respect to the grip portion 120b, as shown in FIG. 7B.

The pedestal adjusting portion 132b is attached to the other end of the long support member 133b and the support member 133b, one end of which is attached to the thumb pedestal 131, and the support member 133b is gripped from the other end of the support member 133b. It has a pedestal inclined portion 134b that can be inclined with respect to 120b.

In the present embodiment, the support member 133b has a function as a linear motion mechanism capable of approaching and separating the thumb pedestal 131 from the grip portion 120b, as shown in FIG. 7B. The support member 133b can move the thumb pedestal 131 along the longitudinal direction L of the support member 133b. The support member 133b can be configured to have a linear motion mechanism such as a telescopic mechanism.

In the present embodiment, the pedestal inclined portion 134b is formed of a sphere. The pedestal inclined portion 134b is slidably fitted into the spherical groove portion 121b formed in the grip 121. That is, the pedestal inclined portion 134b and the grip 121 have a sphere-to-even relationship. Therefore, the pedestal inclined portion 134b can incline the support member 133b in an arbitrary direction by applying an operating force to the support member 133b. Further, the pedestal inclined portion 134b can rotate the support member 133b starting from the end portion of the support member 133b by applying an operating force to the support member 133b.

The pedestal inclined portion 134b is configured to maintain the position of the support member 133b unless an operating force is applied. The method for maintaining the position of the support member 133b is not particularly limited, but for example, the static friction force between the pedestal inclined portion 134b and the grip 121 is set to such that the position of the support member 133b can be maintained unless an operating force is applied. A method of temporarily fixing the pedestal inclined portion 134b by a stopper member (not shown) such as a set screw.

The configuration of the pedestal adjusting portion 132b is not particularly limited as long as the thumb pedestal 131 can be tilted in at least one direction. For example, the support member 133b does not have to have a function as a linear motion mechanism.

As described above, in the puncture assisting tool 100b according to the modified example of the first embodiment, the thumb fixing portion 130b is detachable from the grip portion 120b. Therefore, the thumb fixing portion 130b can be removed and sterilized, the used thumb fixing portion 130b can be replaced with a new one, or the thumb fixing portion 130b suitable for the size of the patient's thumb f1 can be replaced.

Further, the pedestal inclined portion 134b is formed of a sphere attached to the other end of the support member 133b, and the grip 121 is formed with a spherical groove portion 121b into which the pedestal inclined portion 134b can be fitted. Therefore, the support member 133b can be inclined in any direction. Further, the support member 133b can rotate from the other end of the support member 133b as a starting point.

<Second Embodiment>
8A and 8B are diagrams for explaining the puncture assisting tool 200 according to the second embodiment.

The puncture assisting tool 200 according to the second embodiment is different from the puncturing assisting tool 100 according to the first embodiment in the configuration of the grip portion 220.

The puncture aid 200 has a grip portion 220, a thumb fixing portion 130, and an operation portion 140 (not shown), which are outlined with reference to FIG. 8A. Hereinafter, each part of the puncture aid 200 will be described in detail. The same components as those of the puncture assisting tool 100 according to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

(Grip part)
In the present embodiment, as shown in FIG. 8B, the grip portion 220 protrudes outward (palm side), and the curved surface 221 gripped by the other fingers f2 to f5 and the opposite side of the curved surface 221. It has a flat surface 222 located at. That is, the grip portion 220 has a shape as if an elliptical rotating body is cut along a major axis and a minor axis. The fingertips of the other fingers f2 to f5 placed on the curved surface 221 are bent toward the palm side along the curved surface 221 (that is, the gripped state as referred to in the present specification). ..

The grip portion 220 is not particularly limited, but can be made of a known metal material or plastic material. Further, in the region of the grip portion 220 that comes into contact with other fingers f2 to f5, cooling components such as methyl salicylate, menthol, and menthol oil, and acrylic, silicone, polyvinyl, polyester, etc. that can be adhered to the body surface, are used. An adhesive layer containing a known adhesive component such as polyurethane may be provided.

As described above, in the puncture assisting tool 200 according to the second embodiment, the grip portion 220 protrudes outward, and the curved surface 221 and the curved surface 221 gripped by the other fingers f2 to f5. It has a flat surface 222 located on the opposite side. Therefore, the hand H1 can easily form a gripped shape along the curved surface 221. By placing the flat surface 222 on the operating table or the like, the grip portion 220 is stably placed on the operating table or the like. it can.

<Modified example of the second embodiment>
FIG. 9 is a diagram provided for explaining the puncture assisting tool 200a according to the modified example of the second embodiment.

The puncture assisting tool 200a according to the modified example of the second embodiment is different from the puncturing assisting tool 200 according to the second embodiment in that it has a forearm fixing portion 210a. Hereinafter, each part of the puncture aid 200a will be described in detail. The same components as those of the puncture assisting tool 100 according to the first embodiment and the puncturing assisting tool 200 according to the second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The puncture assisting tool 200a includes a forearm fixing portion 210a, a grip portion 220a, a thumb fixing portion 130, and an operating portion 140 (not shown), which are outlined with reference to FIG.

(Forearm fixing part)
In the present embodiment, the forearm fixing portion 210a has a forearm pedestal 211a on which the forearm H2 is placed, and a plurality of fixtures 112 for fixing the forearm H2 to the forearm pedestal 211a.

The forearm pedestal 211a has a shape extending along one direction Y so that the forearm H2 can be placed.

(Grip part)
In the present embodiment, the grip portion 220a is integrally configured with the forearm pedestal 211a. The grip portion 220a has a curved surface 221 that projects outward and is gripped by other fingers f2 to f5, and a flat surface 222 that is located on the opposite side of the curved surface 221.

As described above, in the puncture assisting tool 200a according to the modified example of the second embodiment, the grip portion 220a and the forearm fixing portion 210a are integrated. Therefore, the puncture assisting tool 200a can suppress the movement of the portion from the hand H1 to the forearm H2.

<Third Embodiment>
FIG. 10 is a diagram provided for explaining the puncture assisting tool 300 according to the third embodiment.

The puncture assisting tool 300 according to the third embodiment has a grip portion 320 and a thumb fixing portion 330, as outlined with reference to FIG. Hereinafter, each part of the puncture assisting tool 300 according to the third embodiment will be described.

(Grip part)
In the present embodiment, the grip portion 320 has a spherical surface 321 that is gripped by other fingers f2 to f5. Therefore, by adjusting the positions of the other fingers f2 to f5 on the spherical surface 321, the relative positional relationship between the other fingers f2 to f5 and the thumb f2 can be adjusted. That is, the posture of the hand H1 can be adjusted.

The constituent material of the grip portion 320 is not particularly limited, but for example, a known elastomer material can be used.

(Thumb fixing part)
In the present embodiment, the thumb fixing portion 330 has a groove portion 331 and a hole portion 332 formed in the grip portion 320 and into which the thumb f1 can be fitted.

The groove portion 331 is formed so as to linearly cut out the ball related to the grip portion 320 from one direction so as to fit the thumb f1.

In the present embodiment, the hole portion 332 is formed at substantially the center (intermediate portion) of the bottom surface of the groove portion 331. Therefore, the puncture aid 300 may fix the thumb f1 by inserting the tip of the thumb f1 into the hole 332 and fitting the vicinity of the base of the thumb f1 into the groove 331. However, the thumb fixing portion 330 may have at least one of the groove portion 331 and the hole portion 332.

As described above, in the puncture assisting tool 300 according to the third embodiment, the grip portion 320 has a spherical surface 321 gripped by other fingers f2 to f5. The thumb fixing portion 330 has a groove portion 331 and / or a hole portion 332 formed in the grip portion 320 and into which the thumb f1 can be fitted. Therefore, the piercing aid 300 adjusts the positions of the other fingers f2 to f5 on the spherical surface 321 of the grip portion 320 while fixing the thumb f1 by fitting the thumb f1 into the groove portion 331 and / or the hole portion 332. Thereby, the relative positional relationship between the other fingers f2 to f5 and the thumb f1 can be adjusted.

Although the present invention has been described above through the embodiments and modifications, the present invention is not limited to each of the described configurations, and can be appropriately modified based on the description of the scope of claims.

For example, the puncture assisting tool 100 according to the first embodiment does not have to include the forearm fixing portion 110. That is, the puncture assisting tool 100 may have only the grip portion 120 (grip 121) and the thumb fixing portion 130.

Further, for example, the puncture assisting tool 200 according to the second embodiment and the puncturing assisting tool 200a according to the modified example do not include the operation unit 140, and the thumb fixing portion 130 is the thumb fixing according to the modified example 2 of the first embodiment. It may be replaced with the part 130b.

This application is based on Japanese Patent Application No. 2018-111923 filed on June 12, 2018, the disclosure of which is cited in its entirety by reference.

100, 100a, 100b, 200, 200a, 300 Puncture aids,
110, 210a Forearm fixing part,
120, 120b, 220, 220a, 320 grips,
121 grip,
122 Grip actuator (grip adjustment part),
122b Grip adjustment part,
130, 130a, 130b, 330 Thumb fixing part,
131 thumb pedestal,
132 Pedestal actuator (pedestal adjustment part),
132b pedestal adjustment part,
133, 133b Support member (linear motion mechanism),
134, 134b pedestal slope,
140 operation unit,
221 Curved surface of the grip,
222 Flat surface of the grip,
321 Spherical surface of the grip,
331 Groove of thumb fixing part,
332 Thumb fixing part hole,
H1 hand,
H2 forearm,
f1 thumb,
f2 to f5 Other fingers.

Claims (10)

A puncture aid that assists in puncturing the radial artery of the patient's hand.
The thumb fixing part that fixes the thumb of the hand and
A puncture aid having the thumb fixing portion and a grip portion gripped by a finger other than the thumb. The puncture assisting tool according to claim 1, wherein the thumb fixing portion includes a thumb pedestal on which the thumb is fixed and a pedestal adjusting portion capable of adjusting the fixed position of the thumb pedestal with respect to the grip portion. The pedestal adjustment unit
A long support member whose one end is attached to the thumb pedestal,
The puncture according to claim 2, further comprising a pedestal inclined portion that is attached to the other end of the support member and that can tilt the support member with respect to the grip portion starting from the other end of the support member. Auxiliary tool. The puncture assisting tool according to claim 2 or 3, wherein the pedestal adjusting portion has a linear motion mechanism capable of approaching and separating the thumb pedestal from the grip portion. The puncture assisting tool according to any one of claims 2 to 4, further comprising an operating unit that controls the operation of the pedestal adjusting unit by the operation of the user. The puncture assisting tool according to any one of claims 1 to 5, wherein the thumb fixing portion is detachable from the grip portion. The puncture aid according to any one of claims 1 to 6, further comprising a forearm fixing portion capable of fixing the patient's forearm. The grip is
With the grip gripped by the other fingers,
The puncture assisting tool according to claim 7, further comprising a grip adjusting portion provided at one end of the grip and tilting the grip with respect to the forearm fixing portion starting from one end of the grip. The puncture aid according to any one of claims 1 to 7, wherein the grip portion has a curved surface protruding outward and a flat surface located on the opposite side of the curved surface. The grip has a spherical surface that is gripped by the other fingers.
The puncture aid according to claim 1, wherein the thumb fixing portion is formed in the grip portion and has a groove portion and / or a hole portion into which the thumb can be fitted.

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