JP5032265B2 - Medical instruments - Google Patents

Description

  The present invention relates to a medical instrument such as a puncture device, a syringe, and a blood glucose meter, and more particularly to a medical instrument that is operated while being lifted and grasped by a hand.

  In medical institutions, medical instruments such as puncture devices, syringes, and blood glucose meters that are used with many hands are handled by medical staff. Each of these medical devices has an individual method of use, but in many cases, the medical device is held by a fingertip and an action portion such as a needle is approached and brought into contact with a patient (including a donor). For example, with respect to the puncture device, the tip portion is kept in contact with the patient's skin while being appropriately pressed, and a predetermined trigger operation is performed to puncture the internal needle for a moment. In such a medical instrument, it is desirable that it can be securely gripped by hand so that it can be accurately operated. This is because the frequency of redoing the operation is reduced and the operation becomes easy. From such a background, the syringe described in Patent Document 1 is provided with a surface roughened portion.

JP 2001-187140 A

  In conventional medical devices, the surface slipperiness is not adequately handled and may be difficult to operate. Further, although medical institutions require wearing gloves when handling predetermined medical devices, conventional medical devices are not particularly adapted to be slippery when wearing gloves.

  The present invention has been made in consideration of such problems, and an object of the present invention is to provide a medical instrument that is easy to hold while wearing gloves.

  The puncture device according to the present invention includes a housing, a flexible member having one end fixed to the outer surface of the housing and the other end being a free end, and provided on the outer surface of the housing. A protrusion having an opposite end opposite to the other end, wherein the flexible member protrudes in an oblique direction with respect to the outer surface of the housing, and the other end of the flexible member and the protrusion are opposed to each other. A gap is formed between the end portions.

  According to such a flexible member and the protruding portion, at least the flexible member is elastically deformed and approaches the protruding portion by pressing with a finger or palm wearing the glove, and a part of the glove. As a result, the medical device is easy to hold without slipping from the finger or palm.

  In this case, when gripping the housing, the flexible member is pressed and tilted toward the housing, and the width of the gap may be reduced. The flexible member may be pressed by a finger or palm.

  In this case, two sets of the flexible member and the protruding portion are provided on the outer surface of the housing, and one set of the flexible member and the protruding portion is outside the housing with respect to the other set. It may be located on the opposite side of the surface. Thus, if a flexible member and a protrusion are respectively provided on the two opposite surfaces, it is easy to hold with two fingers.

  The height from the surface to the end surface when not deformed may be 0.5 mm to 2 mm. When the height is 2 mm or less, it is sufficiently low and easy to handle, and when it is 0.5 mm or more, a part of the glove is easily sandwiched.

  The gap may be 0.5 mm to 2 mm. When the gap is 0.5 mm or more, a part of the glove is easily inserted, and when it is 2 mm or less, the glove is sufficiently narrow and a part of the glove is easily sandwiched.

  Furthermore, the protrusion may be a flexible member having one end fixed to the outer surface, and the opposite end may be the other end of the flexible member. That is, the free ends of the pair of flexible members are provided so as to face each other, and the configuration is well balanced.

  The medical device according to the present invention is provided with a position where the leaf spring and the protruding portion are opposed to each other at a predetermined interval, and at least the leaf spring is elastically deformed and protruded by pressing with a finger or palm in a gloved state. Since it approaches a part and clamps a part of gloves, it is easy to hold a medical instrument without slipping from a finger or palm.

  Hereinafter, three embodiments of the medical device according to the present invention will be described and described with reference to FIGS. Hereinafter, the arrow X1 direction of FIG.1, FIG9 and FIG.13 is made into the front and front-end | tip, and X2 direction is made into the back and back end.

  Hereinafter, as a flexible member provided in the medical instrument of the present invention, a leaf spring will be described as an example.

  As shown in FIGS. 1 and 2, the medical instrument according to the first embodiment is a puncture device 10. The puncture device 10 is a device that performs puncture to produce a very small amount of blood when measuring blood glucose levels in diabetic patients, etc., and a puncture needle 12 and a mechanism for projecting the needle 12 are integrated into a single unit. It is a so-called disposable product.

  The puncture device 10 includes a housing 14, a needle 12 provided in the housing 14, a button 16, and two pairs of leaf springs 18 provided on upper and lower surfaces (outer surfaces) 14a and 14a of the housing 14. 18. The housing 14 has a slightly thin box shape, and includes a rear part provided with the leaf spring pair 18 and a front part slightly narrower than the rear part. The housing 14 has a moderately small shape that can be easily gripped by a finger. A flange 20 is provided above and below the rear end of the housing 14. The leaf spring pair 18 may be provided on the left and right surfaces orthogonal to the upper and lower surfaces 14a.

  The button 16 protrudes from the rear opening of the housing 14 and is pushed in at the time of puncture, and drives the internal needle protrusion mechanism (not shown) to cause the needle 12 to protrude momentarily. The needle 12 protrudes momentarily from the needle opening hole 14b in the center of the front surface of the housing 14 under the action of the protruding mechanism, and puncture is performed. A cap (not shown) for holding the sterilized state is attached to the needle 12 through the needle opening hole 14b in advance, and the cap is removed and removed from the needle opening hole 14b in use. The puncture device 10 is slightly long in the direction approaching the human body (that is, the X direction) and is easy to operate.

  As shown in FIG. 3, the leaf spring pair 18 is composed of a pair of leaf springs (flexible members) 22 and 22 in an integrated configuration with the housing 14. The leaf spring pair 18 has a simple configuration and is inexpensive, and can be integrally formed with the housing 14 and is suitable for mass production. As a material of the leaf spring 22, various materials having flexibility such as metal and plastic can be used. One end of each of the two leaf springs 22 is fixed to the surface 14a, and the other end is a free end. It protrudes from the surface 14a in an oblique direction and is provided so as to face each other. The pair of leaf springs 22 have the same shape in a symmetrical arrangement, and end portions 22a of the free ends are opposed to each other and a narrow gap 24 extends in the X direction. Since the pair of leaf springs 22 have the same shape, they are well balanced and easy to grip. The gap 24 extends in a long direction to approach the human body when the puncture device 10 is used, and an appropriate length is secured.

  The leaf spring pair 18 is elastically bent in a direction approaching each other by being pressed from above, tilted toward the housing 14, the width of the gap 24 is reduced, and the end portions 22a can be in contact with each other. , Can grip the operator's gloves. The height H from the surface 14a to the end portion 22a when not deformed is sufficiently low to be easily handled when it is 2 mm or less, and there is little foreign object feeling or resistance feeling when gripping. When the height H is 0.5 mm or more, it becomes easy to sandwich a part of the glove. If the distance L of the gap 24 is 0.5 mm or more, a part of the glove is easily inserted, and if the distance L is 2 mm or less, the glove 24 is sufficiently narrow so that a part of the glove is easily pinched and the human skin is not easily pinched. The angle θ formed by the leaf spring 22 and the surface 14a is suitably about 3 ° to 15 °. The leaf spring pair 18 only needs to be able to contact the end portions 22a, and the cross-sectional shape may be determined according to design conditions. The leaf spring pair 18 in the puncture device 10 has a flat plate shape. Further, the end portions 22a may not be completely in contact with each other, and may be separated by the thickness of the gloves 32 to be sandwiched.

  Next, the operation of the puncture apparatus 10 configured as described above will be described. Since medical institutions require wearing gloves when handling certain medical devices, the following explanation assumes that the operator is wearing gloves. The glove is a thin fabric made of, for example, silicone rubber, is a type that has elasticity and is in close contact with a finger, and is a so-called disposable product. The glove 32 is not limited to the type in close contact with the finger 30 but may be a type in which a slight gap is generated.

  As shown in FIG. 4, the housing 14 is gripped so that the distal end surface comes into contact with the skin 70, and the button 16 is pushed into the housing 14. At this time, for example, the upper and lower surfaces 14a may be grasped by hooking the index finger and the middle finger on the flange 20, and the button 16 may be pushed with the thumb. By the way, a plate spring pair 18 is provided on each of the upper and lower surfaces 14 a, and the index finger and the middle finger press the plate spring pair 18.

  As shown in FIG. 5, the finger 30 comes into contact with the gap 24 and pushes down this portion. As a result, the two leaf springs 22 constituting the leaf spring pair 18 are elastically deformed so that the end portions 22a approach each other, and the glove 32 is sandwiched between the gaps 24. The gap 24 is set to 0.5 mm to 2 mm at the original position, and only the glove 32 can be sandwiched for a necessary and sufficient length.

  Since the initial gap 24 is reasonably narrow, as shown in FIG. 6, the end portions 22 a eventually come into contact with each other via a part of the glove 32, and the glove 32 is pinched. As a result, almost no slip occurs between the finger 30 (glove 32) and the puncture device 10, and the puncture device 10 is easily gripped. The sandwiched glove 32 enters between the leaf spring pair 18 and the surface 14a, but the height H between the end 22a and the surface 14a is ensured to be 0.5 to 2 mm, which is an appropriate amount. Glove 32 can enter.

  When gripping in this manner, the puncture device 10 is fixed to the glove 32 and is less likely to slip with respect to the finger 30, so that an operation for approaching the skin 70 is easy and an appropriate force is applied to the skin 70. The pressed state is maintained and the button 16 is easily operated. Since the pair of leaf springs 18 are provided on the upper and lower surfaces 14a facing the opposite sides, as is clear from FIG. 4, when the two surfaces 14a are sandwiched between two fingers, each finger Are sandwiched between the pair of leaf springs 18 so that the puncture apparatus 10 can be securely grasped. When the operation of the puncture apparatus 10 is completed, the operator may normally release the finger 30. Since the leaf spring pair 18 is only elastically deformed, when the finger 30 is released, the leaf spring pair 18 returns to the original position (see FIG. 3), the end portion 22a is separated, the gap 24 is generated, and the glove 32 is released. . That is, the operator does not need special knowledge, skill, preparation, and attention when operating the puncture apparatus 10.

  In the above example, each of the pair of leaf springs 22 is an elastic body. However, as long as the gap 24 is formed in an opposing portion, either one is an elastic body (that is, a leaf spring) and the other is May be a substantially inelastic protrusion. Such an example will be described with reference to FIG.

  As shown in FIG. 7, the mechanism for sandwiching the glove 32 includes a single leaf spring 22 and a wall portion (opposing end portion) 34 facing the end portion 22 a and forming a gap 24. It is. The wall portion 34 is a part of the protruding portion 35 having substantially the same shape as the leaf spring 22 in a plan view, and faces the end portion 22 a of the leaf spring 22. As shown in FIG. 8, the leaf spring 22 and the wall portion 34 are also elastically deformed by pressing with the finger 30 wearing the glove 32 so that the end portion 22 a approaches the wall portion 34, and the glove Since a part of 32 is pinched, the puncture device 10 is easy to hold without sliding from the finger. In this state where the leaf spring 22 is elastically deformed, the leaf spring 22 and the projecting portion 35 are almost equal in height from the surface 14a and have a substantially symmetrical shape, so that they are easy to grip.

  As shown in FIG. 9, the medical device of the second embodiment is a syringe 100. The syringe 100 includes a syringe 104 having a needle 102 at the tip, a piston body 106 inserted from the rear of the syringe 104, and two pairs of leaf springs 108 provided on the cylindrical side surface of the syringe 104. The syringe 100 can inject the internal chemical solution by pushing the piston body 106 into the syringe 104.

  The two pairs of leaf springs 108 are portions where two fingers are applied when grasping the syringe 100, specifically, a position slightly different from the center of the cylindrical portion 104a and a symmetrical position (180 ° different). Position). The leaf spring pair 108 is provided such that the gap is in the longitudinal direction (X direction) of the syringe 100 and is easy to grip and easy to manufacture.

  As shown in FIG. 10, the leaf spring 110 of the leaf spring pair 108 has an arc shape such that the height H is 0.5 mm to 2 mm according to the cylindrical surface of the syringe 104. Thus, the leaf spring pair 108 is preferably provided on a cylindrical curved surface, and the same effect as the leaf spring pair 18 of the puncture device 10 can be obtained. As shown in FIG. 11, the leaf spring 110 has an arc shape when viewed from the front, so that even when elastically deformed, the leaf spring 110 does not interfere with the cylindrical surface 104 b of the syringe 104 and can securely hold the glove 32. it can.

  In the syringe 100, for example, when the syringe 100 is used, the two leaf spring pairs 108 are sandwiched between the index finger and the middle finger so that stable gripping is possible, and it is easy to perform a puncturing operation and a pressing operation of the piston body 106 with the thumb. .

  As shown in FIG. 12, a plurality of leaf spring pairs 108 may be provided in a column in the X direction in the syringe 120. Thereby, regardless of the place of gripping, any of the pair of leaf springs 18 sandwiches the glove 32 and enables stable gripping. Since the leaf spring pair 108 is divided into appropriate lengths, only the portion that contacts the hand when deformed is elastically deformed, so that the leaf spring pair 108 is easily deformed as compared to a structure in which a plurality of leaf spring pairs 108 are connected. This embodiment is particularly suitable for grasping and supporting the syringe 120 when blood is collected by inserting the needle 102 into a blood vessel.

  As shown in FIG. 13, the medical instrument of the third embodiment is a blood collection tool 150. The blood collection tool 150 has a needle 152 provided at the tip and two pairs of leaf springs 108 provided on the cylindrical side surface. The needle 152 is a double-ended needle, and the needle protrudes also on the proximal end side. A vacuum blood collection tube 154 is inserted into the blood collection tool 150, and the proximal end side of the needle 152 passes through the rubber plug 154a at the distal end, so that blood can be sucked into the blood collection device 150.

  The leaf spring pair 108 can be suitably applied to such a blood collection tool 150, and can prevent slipping by sandwiching the gloves 32.

  The leaf spring pairs 18 and 108 may be provided in a medical instrument (for example, a blood glucose meter) that is used by being held by a hand other than a puncture device, a syringe, and a blood collection tool. The medical device is not necessarily used for the human body, and may be used for an animal, for example.

  Moreover, as a flexible member, it is not limited to a leaf | plate spring, The plate-shaped member provided through the hinge on the outer surface of the medical device may be sufficient.

  The shape of the flexible member is not limited to a plate shape, and may be, for example, a rod shape or a block shape.

  The medical device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

It is a perspective view of the puncture apparatus which has a leaf | plate spring pair. It is a front view of the puncture device which has a leaf | plate spring pair. It is a front view of the leaf | plate spring pair in a puncture apparatus. It is a schematic diagram of the state which contact | abutted the puncture apparatus to skin. It is a front view of the state which made the finger | toe which mounted | wore the glove attached to the leaf | plate spring pair in a puncture apparatus. It is a front view of the state pressed with the finger | toe with which the glove was equipped to the leaf | plate spring pair in a puncture apparatus. It is a front view of a leaf | plate spring and a wall part. It is a front view of the state pressed with the finger | toe which mounted | wore with the leaf | plate spring and the wall part. It is a perspective view of the syringe which has a leaf | plate spring pair. It is a front view of the leaf | plate spring pair in a syringe. It is a front view of the state pressed to the leaf | plate spring pair in a syringe with the finger | toe with which the glove was equipped. It is a perspective view of the syringe which has a leaf | plate spring pair which concerns on a modification. It is a perspective view of the blood collection tool which has a leaf | plate spring pair, and a vacuum blood collection tube.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Puncture device (medical instrument) 12, 102, 152 ... Needle 14 ... Housing 14a ... Surface 16 ... Button 18, 108 ... Plate spring pair 22, 110 ... Plate spring 22a ... End 24 ... Gap 30 ... Finger 32 ... Gloves 34 ... Wall (opposite end)
35 ... Projection 100 ... Syringe (medical device)
104 ... Syringe 150 ... Blood collection tool (medical device)

Claims (6)

A housing;
A flexible member having one end fixed to the outer surface of the housing and the other end being a free end;
A protrusion provided on the outer surface of the housing and having an opposing end facing the other end of the flexible member;
Have
The flexible member protrudes obliquely with respect to the outer surface of the housing, and a gap is formed between the other end of the flexible member and the opposite end of the protruding portion. Medical instrument. The medical device according to claim 1, wherein
When grasping the housing, the flexible member is pressed and tilted toward the housing, and the width of the gap is reduced. The medical device according to claim 1 or 2,
Two sets of the flexible member and the protruding portion are provided on the outer surface of the housing, and one set of the flexible member and the protruding portion is opposite to the other set on the outer surface of the housing. A medical device characterized by being located on the side. The medical device according to any one of claims 1 to 3,
A medical instrument, wherein a height from the surface to the end face when not deformed is 0.5 mm to 2 mm. The medical device according to any one of claims 1 to 4,
The said clearance gap is 0.5 mm-2 mm, The medical device characterized by the above-mentioned. In the medical instrument of any one of Claims 1-5,
The protrusion is a flexible member having one end fixed to the outer surface, and the opposite end is the other end of the flexible member.

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