JP7029909B2 - Finger blood collection device - Google Patents

Description

The present invention relates to a finger blood collecting device for collecting blood.

As a device for collecting blood from a finger (finger) of a subject's hand after being punctured with a needle, for example, the technique described in Patent Document 1 is known. That is, Patent Document 1 describes a blood sampling device including "a puncture portion located below the container portion and puncturing a blood sampling target after the pressure is changed by the pressure fluctuation portion".

Japanese Unexamined Patent Publication No. 2017-6184

Patent Document 1 describes a configuration in which blood is collected with the fingertip of the subject placed on the blood collection device, but the entire hand of the subject (palm, fingers to be collected, fingers other than the finger to be collected) is described. The configuration for comfortably placing the finger) on the blood collection device is not described. That is, it is desired that blood is collected in a reasonable state without burdening the hands of the subject, but such a configuration is not described in Patent Document 1.

Therefore, an object of the present invention is to provide a finger blood collection device that facilitates blood collection.

In order to solve such a problem, the present invention comprises a housing and a tubular finger insertion portion arranged in the housing and into which the finger of the subject to be collected blood is inserted. The upper member of the housing has a hand rest portion on which the hand from which blood is collected is placed, and a hole for advancing and retreating the puncture needle up and down is provided, and the fingertip of the finger to be collected is placed. The blood collecting portion has a convex portion formed by raising along the edge of the abdomen of the fingertip, and the convex portion has a height at which the tip of the fingernail of the finger escapes. The first intersection, which is formed and is an intersection of the vertical cross section in the front-rear direction and the surface of the hand rest portion, is characterized in that it has an upwardly convex curved shape.
Other details will be described in the embodiment.

According to the present invention, it is possible to provide a finger blood collection device that facilitates blood collection.

It is a perspective view of the finger blood collecting apparatus which concerns on 1st Embodiment of this invention. It is a top view of the finger blood collecting apparatus which concerns on 1st Embodiment of this invention. It is a perspective view of the 2nd upper member provided in the finger blood collecting apparatus which concerns on 1st Embodiment of this invention. It is a perspective view of the state which the upper member was removed from the finger blood sampling apparatus which concerns on 1st Embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1 in the finger blood sampling device according to the first embodiment of the present invention. It is an exploded perspective view of the cartridge provided in the finger blood sampling apparatus which concerns on 1st Embodiment of this invention. It is a perspective view which shows the state that the blood is collected by the finger blood collecting apparatus which concerns on 1st Embodiment of this invention. It is a vertical cross-sectional view which shows the state that the blood is collected by the finger blood collecting apparatus which concerns on 1st Embodiment of this invention. It is a perspective view of the finger blood sampling apparatus which concerns on 2nd Embodiment of this invention. It is a perspective view of the upper member of the housing provided with the finger blood sampling apparatus which concerns on 3rd Embodiment of this invention. It is a side view of the state which the finger is placed on the finger blood sampling apparatus which concerns on 4th Embodiment of this invention.

<< First Embodiment >>
FIG. 1 is a perspective view of the finger blood collecting device 100 according to the first embodiment. As shown in FIG. 1, front / rear, left / right, and top / bottom are defined. That is, the front-back, left-right, and up-down are defined with reference to the subject who has inserted his / her finger into the finger insertion portion 1 described later (see FIG. 7) facing the finger blood collecting device 100. More specifically, the side facing the subject is the front and the opposite side is the back.

The finger blood collecting device 100 is a device that collects blood from the finger of the subject (hereinafter, simply referred to as “finger”), and is used for a blood test or the like. Blood collection using the finger blood collection device 100 can be performed, for example, at a blood collection room or a pharmacy of a medical institution, or at the subject's home or the like.

As shown in FIG. 1, the finger blood collecting device 100 includes a housing 20, a finger insertion unit 1, a finger pressing unit 2, a start button 3, a stop button 4 (also referred to as an emergency stop button), and a display unit 5. And have.
The housing 20 accommodates a cartridge 17 (see FIG. 4), an air pump 11 (see FIG. 5), a circuit board (not shown), and the like, which will be described later, and the outer shape thereof is generally rectangular parallelepiped. .. That is, the housing 20 is a bottomed box body composed of a side wall 21 in which the front, rear, left and right walls are formed substantially integrally, and a bottom plate 22 (see FIG. 5) connected to the side wall 21, and the box body. It is provided with an upper member 23 that closes the opening h1 (see FIG. 4) on the upper surface of the above member.

As shown in FIG. 1, the upper member 23 of the housing 20 has a rectangular first upper member 23p in a plan view and a rectangular first member in a plan view connected to the front side (subject side) of the first upper member 23p. The upper member 23q and the like are provided. These first upper member 23p and second upper member 23q are removable.

The base portion 23a and the hand rest portion 23b, which will be described next, are provided over the first upper member 23p and the second upper member 23q. Further, the blood collecting portion 23c and the finger pressing portion 2 described later are provided on the first upper member 23p.

From the viewpoint of the shape of the upper member 23, the upper member 23 includes a base portion 23a, a hand rest portion 23b, and a blood collecting portion 23c.
The surface of the base portion 23a has a smooth curved surface. More specifically, the surface of the rear portion of the base portion 23a is substantially horizontal, and the surface of the front portion of the base portion 23a is gently inclined diagonally downward. That is, the height of the surface of the base portion 23a gradually decreases toward the front. The hand resting part 23b on which the subject's hand is placed and the blood collecting part 23c where blood is collected will be described later.

The finger insertion portion 1 is a cylindrical (cylindrical) member into which a subject's finger (arbitrary finger such as the middle finger or index finger) is inserted, and is arranged near the center of the housing 20 in a plan view. .. Further, a rectangular opening h5 is provided near the center of the upper member 23 included in the housing 20. The finger insertion portion 1 is exposed on the upper side of the hand rest portion 23b in a state of being inserted into the opening h5. The central axis of the finger insertion portion 1 is in the same direction as the front-back direction of the finger blood collection device 100.

It should be noted that the subject does not have an unnatural shape when the subject puts a finger (for example, the middle finger) in the finger insertion portion 1 and further puts a hand (other finger or palm) in the hand rest portion 23b. In addition, the position and height of the finger insertion portion 1 (the front-back and left-right positions of the upper member 23 and the height from the base portion 23a) are appropriately set so that it is not necessary to apply unnecessary force to the hand. There is. Further, the inner diameter of the finger insertion portion 1 is such that a predetermined gap is provided between the inner peripheral surface of the finger insertion portion 1 and the finger in a state where a general (average) adult finger is inserted into the finger insertion portion 1. It is as big as possible.

The finger insertion portion 1 has a chamfered portion 1a in which a portion of the finger inserted into the finger insertion portion 1 that comes into contact with another finger adjacent to the finger is chamfered. Specifically, a chamfered portion 1a is provided near the front end of the outer peripheral surface of the finger inserting portion 1. For example, when the middle finger of a subject is inserted into the finger insertion portion 1, the front end of the finger insertion portion 1 often hits the vicinity of the base of the index finger or ring finger adjacent to the middle finger. Here, as described above, since the finger insertion portion 1 has the chamfered portion 1a, even if the vicinity of the base of the index finger or the ring finger hits the finger insertion portion 1, there is almost no risk of causing the subject to feel pain. .. As a result, blood can be collected in a comfortable state without imposing a burden on the subject.

The finger pressing portion 2 is a member that presses the fingertip of the finger placed on the blood collecting portion 23c from above, and is installed behind the finger inserting portion 1 in the upper member 23. That is, in the front-rear direction, a predetermined gap F (see FIG. 8) is provided between the finger pressing portion 2 and the finger inserting portion 1. Then, when the subject inserts a finger into the finger insertion portion 1, a part of the finger is visible from the gap F. This gives the subject a sense of security during blood sampling, as compared to a configuration in which almost the entire finger is hidden. The above-mentioned "fingertip" is a portion near the tip of the finger. Further, although the details will be described later, the finger pressing portion 2 also has a role of positioning the finger in the front-rear direction.

As shown in FIG. 1, the finger pressing portion 2 includes a rotating portion 2a and an elastic body 2b. The rotating portion 2a is a member that is rotated by a subject or the like. The outer shape of the rotating portion 2a has a substantially rectangular parallelepiped shape, and the lower portion near the front end is cut out. An elastic body 2b is installed in this notched portion. Further, a hinge H extending in the left-right direction is provided in the lower portion near the rear end of the rotating portion 2a. The rotating portion 2a is rotated around the hinge H by the subject or the like (see the thick arrow in FIG. 5).

It should be noted that the rotating portion 2a may be urged by a spring (not shown) so as to maintain the state (state shown in FIG. 1) tilted forward (toward the front side when viewed from the subject). Instead of this, the attractive force of a magnet (not shown) may be used.

The elastic body 2b is a resin member for pressing the finger of the subject from above by the elastic force, and is installed in the rotating portion 2a. Then, with the rotating portion 2a tilted forward around the axis of the hinge H, the fingertip of the finger inserted into the finger inserting portion 1 is appropriately pressed by the elastic body 2b (FIG. FIG. 7). As a result, when the fingertip of the subject is punctured by the puncture needle E (see FIG. 6), it is possible to prevent the fingertip from moving upward. Therefore, fingertip puncture and subsequent blood collection can be performed appropriately.

The start button 3 shown in FIG. 1 is a button pressed by a subject or the like when starting blood collection of a finger, and is provided at a predetermined position on the housing 20. More specifically, in the present embodiment, a circular hole h3 (see FIG. 2) is formed in the right rear portion of the base portion 23a, and a start button 3 is provided in the hole h3.

The stop button 4 shown in FIG. 1 is a button pressed by a subject or the like when interrupting blood collection of a finger, and is provided at a predetermined position on the housing 20. More specifically, in the present embodiment, another circular hole h4 (see FIG. 2) is formed in the left rear portion of the base portion 23a, and the stop button 4 is provided in the hole h4.

In the state where the subject's hand is placed on the hand rest portion 23b and the finger is further inserted into the finger insertion portion 1 (see FIG. 7), the other fingers of the same hand are the start button 3 and the stop button. It may be possible to reach at least one of 4 or a finger may reach both sides. That is, the start and stop operations may be performed only by the hand of the person who collects blood. By making it possible to operate both the buttons 3 and 4 only with the hand of the person who collects blood, for example, even if only one hand can be used, the subject can collect blood by himself / herself.

Further, with the subject's hand placed on the hand rest portion 23b and the finger inserted in the finger insertion portion 1, another finger of the same hand is placed on at least one of the start button 3 and the stop button 4. You may not reach it. This makes it possible to prevent erroneous operations of the start button 3 and the stop button 4.

The display unit 5 is a display that displays predetermined information regarding blood collection, and is installed on the rear wall of the housing 20. For example, when the start button 3 is pressed by a subject or the like, information indicating that blood collection is started is displayed on the display unit 5. Further, when the stop button 4 is pressed during blood collection, information indicating that blood collection is interrupted is displayed on the display unit 5. In addition, when treatments such as finger puncture, blood sampling, and sticking plaster are sequentially performed, information such as the fact that each treatment is being performed and the remaining time is displayed on the display unit 5.

Next, a hand resting portion 23b on which the subject's hand is placed and a blood collecting portion 23c on which blood is collected will be described.
The hand rest portion 23b shown in FIG. 1 is a portion on which the hand on which blood is collected is placed (see FIG. 7), and is integrally formed with the base portion 23a. The hand rest portion 23b is formed so as to bulge from the base portion 23a, and has a dome shape (fornix shape, spherical crown shape). The hand rest portion 23b is formed so that each fingertip of a general (average) adult hand slightly protrudes from the hand rest portion 23b (see FIG. 7).

FIG. 2 is a plan view of the finger blood sampling device 100.
As shown in FIG. 2, the hand rest portion 23b is provided near the center of the upper member 23 in the left-right direction, and is provided slightly in front of the center of the upper member 23 in the front-rear direction. The boundary line between the hand rest portion 23b and the base portion 23a has an elliptical shape that is relatively close to a circle in a plan view.

The blood collecting portion 23c is a portion on which the fingertip of the finger to be collected blood is placed, and is provided near the rear end of the hand rest portion 23b. As shown in FIG. 2, the blood collecting portion 23c includes a finger rest portion 231c, a hole h6, and a convex portion 232c.

The finger rest portion 231c is a portion on which the fingertip of the finger inserted into the finger insertion portion 1 (for example, the fingertip of the middle finger) is placed. The finger rest portion 231c is formed so that when the fingertip of the subject is placed, the pad of the fingertip is fitted on the surface of the finger rest portion 231c. That is, the surface of the finger rest portion 231c is curved in the left-right direction, and the height of the surface of the finger rest portion 231c decreases as it approaches the center in the left-right direction. As a result, the pad of the fingertip of the subject fits snugly in the finger rest portion 231c, so that the subject can be given a sense of security (a sense of stability in the position of the finger).

Further, the surface of the finger rest portion 231c (that is, the surface of the blood collection portion 23c) is inclined diagonally downward toward the back side when viewed from the subject. As a result, the finger inserted into the finger insertion portion 1 (middle finger shown in FIG. 7), the other fingers placed on the dome-shaped hand rest portion 23b (thumb, index finger, ring finger, little finger shown in FIG. 7), and The positional relationship of is in a natural state where you do not need to put any effort into your hands.
In general, if a person does not put any effort into the hand, each finger of the hand will be slightly bent. As described above, the surface of the finger rest portion 231c is inclined, and the hand rest portion 23b has a dome shape. This allows blood to be collected from the subject's fingertips in a natural state with little effort on the subject's hand.

Further, a hole h6 for moving the puncture needle E (see FIG. 6) up and down is provided near the center of the finger rest portion 231c of the blood collection portion 23c. By moving the puncture needle E upward through the hole h6, the fingertip of the subject is punctured.

The convex portion 232c suppresses the positional deviation of the fingertip in the front-back and left-right directions in a state where the fingertip of the subject fits on the finger rest portion 231c. The convex portion 232c is provided in an inverted U-shaped region in a plan view so as to surround the finger rest portion 231c. The convex portion 232c is formed so as to bulge along the edge of the abdomen of the fingertip of the finger inserted into the finger insertion portion 1. As a result, the position of the finger can be stabilized while the tip of the finger of the subject is in contact with the convex portion 232c.

Further, the convex portion 232c is formed at a height that allows the tip of the fingernail to escape (see FIG. 8). As a result, blood can be collected with the fingertip fitted to the finger rest portion 231c without the tip of the fingernail hitting the convex portion 232c. For example, even when the length of the fingernail of the subject is relatively long, the convex portion 232c appropriately positions the fingertip. Further, since the convex portion 232c is formed at a height that allows the tip of the fingernail to escape, the nail hardly hits the convex portion 232c. This makes it possible to collect blood without imposing a burden on the subject's fingers (particularly, the creases on the nails).
Next, the details of the hand rest portion 23b on which the hand of the subject is placed will be described.

FIG. 3 is a perspective view of the second upper member 23q included in the finger blood sampling device 100.
As described above, the second upper member 23q includes a base portion 23a and a hand rest portion 23b. A notch h7 formed in a U-shape in a plan view is formed at the rear portion of the hand rest portion 23b. Then, the front end surface of the notch h7 and the first upper member 23p (see FIG. 2) forms an opening h5 (see FIG. 2) having a rectangular shape in a plan view.

Further, the first line of intersection La, which is the line of intersection between the vertical cross section Pa in the front-rear direction and the surface of the hand rest portion 23b, exhibits an upwardly convex curved shape. In other words, it is the line of intersection between the vertical cross section Pa parallel to the front-back and up-down directions when viewed from the subject who inserted his / her finger into the finger insertion portion 1 (see FIG. 1) and the surface of the hand rest portion 23b. The first line of intersection La has an upwardly convex curved shape.

For example, if the subject does not place his hand on the hand rest 23b and the subject does not put any force on the hand held in front of him, the palm and the pad of each finger are usually flat. It is not a shape, but a curved surface that is convex upward. Then, when the subject puts his / her hand on the hand rest portion 23b with no force on his / her hand, as described above, the first line of intersection La exhibits an upwardly convex curved shape, so that the front and back / The hand rest 23b fits snugly on the hand in the vertical direction. That is, the subject can place his / her hand on the hand rest 23b with almost no change in the shape of the hand from the state where no force is applied to the hand. Therefore, blood can be collected in a state that is comfortable for the subject.

Further, the height of each point included in the first line of intersection La decreases as it goes backward from the apex T of the first line of intersection La, and also decreases as it goes forward (to the subject side) from the apex T. .. As a result, it is not necessary for the subject to forcibly bend the wrist when collecting blood, and the subject can collect blood in a natural state.

Further, the second line of intersection Lb, which is the line of intersection between the vertical cross section Pb in the left-right direction and the surface of the hand rest portion 23b, exhibits an upwardly convex curved shape. In other words, the second line of intersection Lb, which is the intersection of the vertical cross section Pb parallel to the left, right, up and down directions when viewed from the subject who inserted his or her finger into the finger insertion portion 1, and the surface of the hand rest portion 23b. However, it has a convex curved shape. As a result, when the subject puts his / her hand on the hand rest portion 23b with no force on his / her hand, as described above, the second line of intersection Lb has an upwardly convex curved shape, so that the front and back -The hand rest 23b fits the hand perfectly in the left-right direction. Therefore, blood can be collected in a state that is comfortable for the subject.

FIG. 4 is a perspective view showing a state in which the upper member 23 is removed from the finger blood sampling device 100.
In addition to the above-mentioned configurations, the finger blood collecting device 100 includes a support portion 6, a first saucer portion 7, an engaging portion 8, a rail 9, a cuff 10 (see FIG. 5), and an air pump 11 (FIG. 5). 5) and a tube 12. Further, the finger blood collecting device 100 includes a spring 13 (urgency portion: see FIG. 5), a partition plate 14, a second saucer portion 15 (receiver portion), a leg plate 16, and a cartridge 17.

The support portion 6 shown in FIG. 4 is a portion that supports the finger insertion portion 1 and is integrally formed with the finger insertion portion 1. The support portion 6 has a U-shape (⊂-shape when the orientation is taken into consideration) in a vertical cross-sectional view. The finger insertion portion 1 and the support portion 6 can be integrally moved within a predetermined range in the front-rear direction (within a range defined by the length of the opening h5 shown in FIG. 1 in the front-rear direction). Thereby, for example, a subject having a relatively short finger length puts his fingertip on the blood sampling unit 23c by pushing the finger insertion portion 1 backward with the crotch of the base of the finger passed through the finger insertion portion 1. Can be done.

In the example shown in FIG. 4, the rear end surface of the support portion 6 is substantially flush with the rear end surface of the finger insertion portion 1. On the other hand, the front end portion of the support portion 6 is provided with an inclined surface k that is inclined diagonally downward toward the front. A groove for installing the tube 12 described later is formed on the inclined surface k.

The first saucer portion 7 is a plate for receiving the blood droplets when the subject's finger is punctured and fine blood droplets fly, and has a square frame shape in a plan view. The first saucer portion 7 is provided so as to surround the support portion 6 and is substantially integrated with the lower portion of the support portion 6.

The engaging portion 8 is a member that is engaged with the rail 9 described below, and is movable in the front-rear direction via the rail 9. The engaging portion 8 is installed under the first saucer portion 7 and is substantially integrated with the first saucer portion 7.
The rail 9 guides the engaging portion 8 and the like in the front-rear direction. The rail 9 is engaged with the engaging portion 8 in a state of being fixed to the upper surface of the partition plate 14.

FIG. 5 is a cross-sectional view taken along the line II-II of FIG. 1 in the finger blood sampling device 100.
Note that FIG. 5 omits the illustration of the cartridge 17 (see FIG. 4).
The cuff 10 shown in FIG. 5 is a bag-shaped “compression portion” that presses the finger inserted into the finger insertion portion 1 with the pressure of air (gas), and is formed on the inner peripheral surface (inner wall surface) of the finger insertion portion 1. is set up. The cuff 10 is connected to the air pump 11 via a tube 12.

The air pump 11 shown in FIG. 5 is a pump that supplies air to the cuff 10 via the tube 12, and is installed under the partition plate 14. The air pump 11 appropriately increases or decreases the air pressure based on a command from the control unit (not shown) to expand or contract the cuff 10.
The tube 12 is a tube that guides air from one of the air pump 11 and the cuff 10 to the other.

The partition plate 14 has a function of partitioning the inside of the housing 20 in the vertical direction and also has a function of supporting the rail 9 and the like. In the example shown in FIG. 5, the rear end portion of the partition plate 14 is fixed to the support wall W, and the front end portion is fixed to the front wall of the housing 20. Further, the partition plate 14 is formed with an insertion hole h8 through which the tube 12 is inserted. Further, the partition plate 14 has a spring mounting portion 14a extending upward in a vertical cross-sectional view. The spring installation portion 14a is a portion where the spring 13 described below is installed, and is arranged on the rear side of the rail 9 fixed to the partition plate 14.

The spring 13 is an "urging portion" that urges the finger insertion portion 1 and the support portion 6 that have moved to the back side so as to be pushed back toward the front side when viewed from the subject, and is installed on the front surface of the spring installation portion 14a. Has been done. In the example shown in FIG. 5, the spring 13 urges the engaging portion 8 forward by its elastic force. As described above, the finger insertion portion 1, the support portion 6, the first saucer portion 7, and the engaging portion 8 are substantially integrated. Therefore, in addition to the engaging portion 8, the finger insertion portion 1, the support portion 6, and the first saucer portion 7 are also urged forward by the spring 13.

For example, the subject inserts the middle finger into the finger insertion portion 1 (see FIG. 7), and the crotch between the middle finger and the index finger or the crotch between the middle finger and the ring finger is a finger against the urging force of the spring 13. It is assumed that the insertion portion 1 is pushed backward. Then, the finger insertion portion 1, the support portion 6, the first tray portion 7, and the engaging portion 8, which are substantially integrated, are guided by the rail 9 and move backward. As a result, the subject can appropriately place the tip of the middle finger on the blood sampling unit 23c. Further, for example, the cuff 10 can press between the first joint and the second joint of the middle finger.

The second saucer portion 15 shown in FIG. 4 is a plate for receiving the blood droplets when the subject's finger is punctured and fine blood droplets fly. The second saucer portion 15 has a rectangular shape elongated in the left-right direction in a plan view, and both ends thereof are close to the left and right side walls 21 of the housing 20. In the example shown in FIG. 4, the second saucer portion 15 is installed below the boundary line (boundary line in the left-right direction) between the first upper member 23p and the second upper member 23q. That is, the second saucer portion 15 is arranged on the lower side of the upper member 23 in the vicinity of the hole h6 of the blood collection portion 23c.

Further, the second saucer portion 15 is installed so as to enter the recess 6a of the support portion 6 which has a ⊂ shape in a vertical cross-sectional view. In other words, the support portion 6 has a recess 6a for preventing itself from interfering with the second saucer portion 15 as it moves in the front-rear direction. This makes it possible to prevent the support portion 6 from interfering with the second saucer portion 15 when the subject is moving the finger insertion portion 1 or the support portion 6 in the front-rear direction.

The leg plate 16 is a plate that supports the second saucer portion 15. In the example shown in FIG. 4, four leg plates 16 are installed on the second saucer portion 15 at predetermined intervals in the left-right direction.
Next, in FIG. 4, the simplified and illustrated cartridge 17 will be described in detail.

FIG. 6 is an exploded perspective view of the cartridge 17 included in the finger blood sampling device 100.
The cartridge 17 is for puncturing, collecting blood, and attaching a bandage in sequence, and is installed in the housing 20. The cartridge 17 includes a perforator holder 17a, a blood collection tube holder 17b, an adhesive plaster holder 17c, and a case 17d for accommodating these. In addition, a drive source (not shown) for moving the case 17d in the left-right direction and moving each holder in the up-down direction is provided.

The perforator holder 17a is a holder having a perforator 171a. After the start button 3 (see FIG. 2) is pressed, when the perforator holder 17a moved directly under the hole h6 (see FIG. 2) is raised by a drive source (not shown), the upper end of the perforator 171a is at the fingertip. Pressed against the belly. Then, the puncture needle E housed in the puncture device 171a pops out for a moment to puncture the skin and capillaries of the fingertips.

The blood collection tube holder 17b is a holder having an absorption pad 171b and a blood collection tube 172b. After the fingertip is punctured, when the blood collection tube holder 17b moved directly under the hole h6 (see FIG. 2) is raised by a drive source (not shown), the absorption pad 171b is pressed against the pad of the fingertip. As a result, blood is dripping into the blood collection tube 172b.

The adhesive plaster holder 17c is a holder having the adhesive plaster 171c. After collecting blood from the fingertip, when the bandage holder 17c moved directly under the hole h6 (see FIG. 2) is raised by a drive source (not shown), the upper end of the bandage holder 17c is pressed against the pad of the fingertip. As a result, the adhesive plaster 171c can be attached to the punctured portion of the fingertip.

The perforator holder 17a, the blood collection tube holder 17b, and the adhesive plaster holder 17c can be replaced every time blood is collected.
Next, the effects produced by the configuration of the finger blood collection device 100 will be described together with the blood collection procedure. Further, although the case where the subject inserts the middle finger of his / her hand into the finger insertion portion 1 will be described, another finger may be inserted into the finger insertion portion 1.

FIG. 7 is a perspective view showing a state in which blood is collected by the finger blood collection device 100.
In FIG. 7, the display unit 5 (see FIG. 1) is not shown.
When collecting blood, the subject inserts the middle finger of the hand into the finger insertion portion 1, places the tip of the middle finger on the blood collection portion 23c, and further places substantially the entire hand on the hand rest portion 23b. Then, the subject rotates the finger pressing portion 2 toward the front side so that the fingertip of the middle finger is pressed by the finger pressing portion 2.

As described above, the hand rest portion 23b has a dome shape, and the surface of the blood collection portion 23c is inclined diagonally downward toward the rear. Therefore, when the subject puts the tip of the middle finger on the finger rest portion 231c and further puts the hand on the hand rest portion 23b, the surface of the palm and the pad of each finger becomes a curved surface that is convex upward. .. This allows the subject to collect blood in a comfortable state with little effort on the hands. For example, even if the subject is an elderly person who has difficulty in exerting force on his / her hand, blood can be collected in a natural state in which each finger is slightly bent with almost no force applied to the hand. Further, since the finger insertion portion 1 has the chamfer portion 1a, even if the index finger or the ring finger adjacent to the middle finger comes into contact with the finger insertion portion 1, the subject feels the pain associated with this contact. There are few things.

FIG. 8 is a vertical cross-sectional view showing a state in which blood is collected by the finger blood collection device 100.
As described above, the convex portion 232c of the finger insertion portion 1 is formed at a height at which the tip of the fingernail escapes. Therefore, blood can be collected with the fingertip fitted to the finger rest portion 231c without the tip of the fingernail hitting the convex portion 232c. As described above, according to the present embodiment, it is possible to provide the finger blood sampling device 100 that makes it easy for the subject to collect blood.

Then, when the start button 3 (see FIG. 2) is pressed by the subject or the like, the air pump 11 operates, and air is supplied to the cuff 10 via the tube 12. As a result, for example, the cuff 10 appropriately presses between the first joint and the second joint of the middle finger of the subject. Then, the cartridge 17 moves in the left-right direction, and puncture, blood sampling, and sticking plaster 171c (see FIG. 6) are sequentially performed.

More specifically, with the middle finger of the subject being pressed by the cuff 10, the puncture needle E rises and falls through the hole h6, and the skin and capillaries of the fingertip are punctured. At this time, the fingertip of the middle finger inserted into the finger insertion portion 1 is pressed from above by the finger pressing portion 2. As a result, the upward movement of the fingertip is suppressed, so that the fingertip can be punctured and blood can be appropriately collected thereafter. By the way, immediately after the puncture, some blood comes out at the fingertip, but this blood often remains attached to the fingertip due to surface tension.

After the puncture, the cartridge 17 moves in the left-right direction, and the absorption pad 171b (see FIG. 6) is pressed against the pad of the fingertip, so that blood drips into the blood collection tube 172b (see FIG. 6). During blood collection, the force of pressing the middle finger with the cuff 10 may be appropriately increased or decreased.
After a predetermined amount of blood has accumulated in the blood collection tube 172b, the pressure on the middle finger by the cuff 10 is released. The amount of blood accumulated in the blood collection tube 172b may be detected by a sensor (not shown) or a camera (not shown), or the end timing of blood collection may be determined based on the blood collection time. .. After blood collection, the cartridge 17 moves in the left-right direction, and the adhesive plaster holder 17c (see FIG. 6) is raised, so that the adhesive plaster 171c is attached to the blood collection site. In this way, a series of processes related to blood collection is performed.

<< Second Embodiment >>
In the second embodiment, the boundary line between the base portion 23a (see FIG. 9) and the hand rest portion 23b (see FIG. 9) has an elliptical front portion cut out in a plan view. However, it is different from the first embodiment. Others are the same as those in the first embodiment. Therefore, a part different from the first embodiment will be described, and a description of the overlapping part will be omitted.

FIG. 9 is a perspective view of the finger blood collecting device 100A according to the second embodiment.
As shown in FIG. 9, the upper member 23A of the housing 20A includes a base portion 23a, a hand rest portion 23b, and a blood collection portion 23c. The boundary line between the base portion 23a and the hand rest portion 23b has an elliptical front portion cut out in a plan view. According to such a configuration, the width of the finger blood collecting device 100A in the anteroposterior direction is shorter than that of the first embodiment, so that the finger blood collecting device 100A can be made compact.

<< Third Embodiment >>
In the third embodiment, the boundary line between the base portion 23a (see FIG. 10) and the hand rest portion 23b (see FIG. 10) has an elliptical right and left portions cut out in a plan view. The point is different from the first embodiment. Further, the third embodiment is different from the first embodiment in that the finger pressing portion 2 (see FIG. 1) is omitted. Others are the same as those in the first embodiment. Therefore, a part different from the first embodiment will be described, and a description of the overlapping part will be omitted.

FIG. 10 is a perspective view of the upper member 23B of the housing included in the finger blood collecting device 100B according to the third embodiment.
In FIG. 10, the start button 3 (see FIG. 1), the stop button 4 (see FIG. 1), and the display unit 5 (see FIG. 1) described in the first embodiment are not shown.

As shown in FIG. 10, the upper member 23B includes a base portion 23a, a hand rest portion 23b, and a blood collection portion 23c. Further, the boundary line between the base portion 23a and the hand rest portion 23b has a shape in which the right and left portions of an ellipse are cut out in a plan view. According to such a configuration, the subject can collect blood as if he / she is holding a mouse of a personal computer (not shown). Further, since the width of the finger blood collecting device 100B in the left-right direction is shorter than that of the first embodiment, the finger blood collecting device 100B can be made compact.

<< Fourth Embodiment >>
The fourth embodiment is different from the first embodiment in that the finger insertion portion 1C (see FIG. 11) and the finger pressing portion 2C (see FIG. 11) are integrally formed. Further, the fourth embodiment is different from the first embodiment in that the first cuff 18 (see FIG. 11) and the second cuff 19 (see FIG. 11) are provided. Others are the same as those in the first embodiment. Therefore, a part different from the first embodiment will be described, and a description of the overlapping part will be omitted.

FIG. 11 is a side view of a state in which a finger is placed on the finger blood collecting device according to the fourth embodiment.
In FIG. 11, the blood sampling unit 23c (see FIG. 2) is not shown.
As shown in FIG. 11, the finger blood collecting device includes a housing 20C, a finger insertion portion 1C, a finger pressing portion 2C, a first cuff 18, a second cuff 19, and the like.

The finger pressing portion 2C is integrally formed with the finger inserting portion 1C. That is, a cylindrical finger insertion portion 1C and a finger pressing portion 2C that is connected to the finger insertion portion 1C and extends from the upper portion of the finger insertion portion 1C to the rear and front are integrally formed.

The first cuff 18 is a bag-shaped "compression portion" that presses the portion of the finger surrounded by the finger insertion portion 1C, and is installed on the inner peripheral surface (inner wall surface) of the finger insertion portion 1C.
The second cuff 19 is a bag-shaped "another compression portion" that presses the fingertip of the finger inserted into the finger insertion portion 1C from above, and is installed in the finger pressing portion 2C.

The air pressures of the first cuff 18 and the second cuff 19 can be adjusted independently. Then, in the process of collecting blood, the fingers are appropriately pressed by the first cuff 18 and the second cuff 19. According to such a configuration, the number of parts of the finger blood collecting device can be reduced as compared with the first embodiment, and the manufacturing cost can be reduced.

≪Variation example≫
Although the finger blood collecting device 100 and the like according to the present invention have been described above by each embodiment, the present invention is not limited to these descriptions, and various modifications can be made.
For example, in each embodiment, the configuration in which the finger insertion portion 1 included in the finger blood collection device 100 (see FIG. 1) is cylindrical has been described, but the present invention is not limited to this, and other shapes that are “cylindrical” may be used. May be good.

Further, in each embodiment, the configuration in which the finger insertion portion 1, the support portion 6, and the like can be moved in the front-rear direction by the urging force of the spring 13 (see FIG. 5) has been described, but the present invention is not limited to this. That is, the control unit (not shown) may move the finger insertion unit 1, the support unit 6, or the like by a drive source (not shown) in response to the operation of the start button 3 or the like.
Further, in each embodiment, the case where air is supplied to the cuff 10 has been described, but a predetermined “gas” may be supplied to the cuff 10.

Further, the subject may attach a tubular disposable finger cot (not shown) to the finger to be collected.
Further, a voice recognition function may be added in addition to the display function of the display unit 5, and the finger blood collection device 100 may collect blood based on the recognition result of the voice such as "start" of the subject.
Further, the position of the finger inserted into the finger insertion portion 1 may be detected by a sensor, and blood collection may be started when the fingertip of the finger is placed on the blood collection portion 23c.

Further, in the first embodiment (see FIG. 1) and the second embodiment (see FIG. 9), the configuration in which the finger blood collecting device 100 includes the finger pressing portion 2 has been described, but the finger pressing portion 2 may be omitted. .. Even in such a configuration, since the position of the finger is fixed by the cylindrical finger insertion portion 1, blood can be appropriately collected.

Further, in the third embodiment (see FIG. 10), the configuration in which the finger blood collecting device 100B does not include the finger pressing portion 2 has been described, but the finger pressing portion 2 may be added.
Further, in the fourth embodiment (see FIG. 11), the configuration in which the finger blood sampling device 100C includes the first cuff 18 and the second cuff 19 has been described, but these may be integrated.

Moreover, each embodiment may be combined appropriately. For example, the third embodiment and the fourth embodiment may be combined. That is, the finger blood collecting device may include the housing 20B having the configuration described in the third embodiment, and may include the finger inserting portion 1C, the finger pressing portion 2C, and the like having the configuration described in the fourth embodiment.

Further, each embodiment is described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the configurations described. Further, it is possible to add / delete / replace a part of the configuration of the embodiment with another configuration. In addition, the above-mentioned mechanism and configuration show what is considered necessary for explanation, and do not necessarily show all the mechanisms and configurations in the product.

100, 100A, 100B, 100C Finger blood sampling device 1,1C Finger insertion part 1a Chamfering part 2, 2C Finger holding part 3 Start button 4 Stop button 5 Display part 6 Support part 6a Recessed part 7 First saucer part 8 Engaging part 9 Rail 10 cuff (compression part)
11 Air pump 12 Tube 13 Spring (Bouncer)
14 Partition plate 14a Spring installation part 15 Second saucer part (receiver part)
16 Sole plate 17 Cartridge 18 First cuff (compression part)
19 Second cuff (another compression part)
20, 20A, 20B, 20C Housing 23, 23A, 23B Upper member 23a Base part 23b Hand rest part 23c Blood sampling part 232c Convex part E Puncture needle F Gap La 1st line of intersection Lb 2nd cross section (front and back) Vertical section in direction)
Pb vertical section (horizontal section)
T vertex h6 hole

Claims (13)

With the housing
A tubular finger insertion portion, which is arranged in the housing and into which the finger of the subject to be collected blood is inserted, is provided.
The upper member of the housing
It has a hand resting part where the hand of the person who collects blood is placed, and also has a hand resting part.
It has a hole for moving the puncture needle up and down, and has a blood collection part on which the fingertips of the fingers to be collected are placed.
The blood sampling portion has a convex portion formed by raising along the edge of the abdomen of the fingertip.
The convex portion is formed at a height that allows the tips of the fingernails to escape.
A finger blood collection device characterized in that the first line of intersection, which is the intersection of the vertical cross section in the anteroposterior direction and the surface of the hand rest portion, has an upwardly convex curved shape. With the housing
A cylindrical finger insertion portion placed in the housing and into which the finger of the subject to be collected blood is inserted, and a tubular finger insertion portion.
A support portion that is integrally formed with the finger insertion portion and supports the finger insertion portion is provided.
The finger insertion portion and the support portion can be moved in the front-rear direction, and the finger insertion portion and the support portion can be moved in the front-rear direction.
Further provided with an urging portion for urging the finger insertion portion and the support portion that have moved to the back side so as to be pushed back toward the front side when viewed from the subject.
The upper member of the housing
It has a hand resting part where the hand of the person who collects blood is placed, and also has a hand resting part.
It has a hole for moving the puncture needle up and down, and has a blood collection part on which the fingertips of the fingers to be collected are placed.
A finger blood collection device characterized in that the first line of intersection, which is the intersection of the vertical cross section in the anteroposterior direction and the surface of the hand rest portion, has an upwardly convex curved shape. With the housing
A tubular finger insertion portion, which is arranged in the housing and into which the finger of the subject to be collected blood is inserted, is provided.
The upper member of the housing
It has a hand resting part where the hand of the person who collects blood is placed, and also has a hand resting part.
It has a hole for moving the puncture needle up and down, and has a blood collection part on which the fingertips of the fingers to be collected are placed.
Further provided with a finger holding portion that presses the fingertips of the fingers placed on the blood collecting portion from above.
The finger holding portion is installed on the upper member and is attached to the upper member.
In the front-back direction, a gap is provided between the finger pressing portion and the finger inserting portion.
A finger blood collection device characterized in that the first line of intersection, which is the intersection of the vertical cross section in the anteroposterior direction and the surface of the hand rest portion, has an upwardly convex curved shape. With the housing
A tubular finger insertion portion, which is arranged in the housing and into which the finger of the subject to be collected blood is inserted, is provided.
The upper member of the housing
It has a hand resting part where the hand of the person who collects blood is placed, and also has a hand resting part.
It has a hole for moving the puncture needle up and down, and has a blood collection part on which the fingertips of the fingers to be collected are placed.
The first line of intersection, which is the intersection of the vertical cross section in the front-back direction and the surface of the hand rest portion, has an upwardly convex curved shape.
The upper member has a first upper member on the back side when viewed from the subject, and a second upper member connected to the front side of the first upper member.
The hand rest portion is provided over the first upper member and the second upper member.
It is possible to remove the first upper member and the second upper member from the state where the first upper member and the second upper member block the opening of the box body which is a part of the housing. A featured finger blood collection device. With the housing
A tubular finger insertion portion, which is arranged in the housing and into which the finger of the subject to be collected blood is inserted, is provided.
The upper member of the housing
It has a hand resting part where the hand of the person who collects blood is placed, and also has a hand resting part.
It has a hole for moving the puncture needle up and down, and has a blood collection part on which the fingertips of the fingers to be collected are placed.
The first line of intersection, which is the intersection of the vertical cross section in the front-back direction and the surface of the hand rest portion, has an upwardly convex curved shape.
The finger placed on the blood collection portion is provided with a finger holding portion that presses the fingertip protruding from the finger insertion portion from above.
The finger holding portion is
A rotating part that can be rotated so as to be tilted toward you when viewed from the subject,
A finger blood sampling device characterized by having an elastic body that urges the rotating portion to tilt toward the front side when viewed from the subject. From claim 1, the height of each point included in the first line of intersection decreases as it goes backward from the apex of the first line of intersection and also decreases as it goes forward from the apex. The finger blood collecting device according to any one of claims 5. Any of claims 1 to 5, wherein the second line of intersection, which is the line of intersection between the vertical cross section in the left-right direction and the surface of the hand rest portion, has an upwardly convex curved shape. The finger blood collection device according to item 1. The finger blood collecting device according to any one of claims 1 to 5, wherein the surface of the blood collecting portion is inclined diagonally downward toward the back side when viewed from the subject. .. The finger blood collection according to any one of claims 1 to 5, wherein the finger insertion portion has a chamfered portion in which a portion of contact with another finger adjacent to the finger is chamfered. Device. On the lower side of the upper member, a saucer portion arranged near the hole is provided.
The finger blood collecting device according to claim 2, wherein the support portion has a recess for preventing itself from interfering with the saucer portion as it moves in the front-rear direction. Any of claims 1 to 5, which is provided on the inner wall surface of the finger insertion portion and includes a bag-shaped compression portion that presses the finger inserted into the finger insertion portion with the pressure of gas. The finger blood collecting device according to paragraph 1. The finger holding portion is integrally formed with the finger inserting portion.
The finger blood collecting device according to claim 3 , further comprising another bag-shaped pressing portion which is installed in the finger holding portion and presses the fingertip of the finger inserted into the finger inserting portion from above. The start button pressed when starting blood collection on the fingers,
A stop button, which is pressed when the blood collection of the finger is interrupted, is provided.
The finger blood collecting device according to any one of claims 1 to 5, wherein the start button and the stop button are provided at predetermined positions in the housing.

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