JP5308947B2 - Syringe operation aid - Google Patents

Description

  The present invention relates to a syringe operation aid for facilitating a syringe operation when a highly viscous fluid or the like is administered with a syringe.

  When using a syringe to administer high-viscosity fluids such as liquid food to patients or caregivers at medical or welfare sites, the syringe can be used directly from the container containing the fluid or via a distribution attachment. The fluid is sucked inside, and then the plunger (piston) of the syringe is pressed to perform administration.

  The syringe used for the administration of such a high-viscosity fluid has a larger nozzle diameter than a general syringe for injection, thereby reducing the resistance of the plunger pushing and pulling operation during fluid suction and administration. However, it still requires a significant force to pull and push the plunger for fluid aspiration and administration.

  In medical and nursing care sites, women with weak hand power and middle-aged and elderly people are often involved in fluid administration work with syringes, and thus simplification of this work has been desired. Therefore, a suction force enhancer as disclosed in Patent Document 1 has been proposed. This is a handle having a shape and size that can be grasped with one hand, and a T-shaped groove for locking a finger paddle at the rear end of the plunger of the syringe.

Japanese Utility Model Publication No. 4-70041

  However, this suction force enhancer has a very simple shape, and the plunger shaft is sandwiched between the fingers of the hand holding the suction force enhancer. It is not easy to grip, and the locking part is a simple T-shaped groove that can lock the collar at the rear end of the plunger, so when pulling the suction force enhancer strongly, The end portion was likely to slip through the locking portion and come off.

  The present invention has been made to solve the above-mentioned problems, and with a simple configuration, it is easy to grasp ergonomically, the plunger rear end portion of the syringe can be securely held, and the plunger push-pull is performed. It aims at providing the syringe operation auxiliary tool which can simplify operation | movement.

  In order to solve the above problems, the invention according to claim 1 is a syringe operation assisting tool that is attached to the rear end of the plunger of the syringe in a handle shape to facilitate the operation of the plunger, The handle half is provided with an operation handle that forms a main body when these handle halves are closed together, and further, a hinge portion that allows the handle half to be opened and closed, and the handle halves are closed together A grip portion that is gripped by an operator's hand in a state, and a clamp portion that holds the plunger rear end when the handle half is closed, and the operation handle includes the grip portion The syringe operation assisting tool is formed so as to be positioned on the opposite side of the syringe with respect to the clamp part.

  According to a second aspect of the present invention, in addition to the configuration according to the first aspect, the operation handle is formed in a substantially rod shape, the hinge portion is provided at one end of the operation handle, and the gripping portion is provided on the operation handle. Provided at the other end, the clamp part is provided at an intermediate part of the operation handle and closer to the hinge part than the grip part, and further, the operation handle has the grip part with respect to the clamp part. A syringe operation aid having a curved shape so as to be located on the opposite side of the syringe is used.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the relative angle of the gripping part with respect to the central axis of the syringe held by the clamp part is determined by the operator who naturally grips the gripping part. The syringe operation assisting tool is characterized in that the longitudinal direction of the forearm is an angle that substantially coincides with the central axis of the syringe.

  According to a fourth aspect of the present invention, in addition to the structure according to any one of the first to third aspects, the clamp portion has a plurality of holding portions so that the plunger rear end portions of syringes of different sizes can be held. And this holding | maintenance part is a syringe operation assistance tool arrange | positioned coaxially along the center axis line of the said syringe, It is characterized by the above-mentioned.

  According to a fifth aspect of the present invention, in addition to the configuration according to any of the first to fourth aspects, the pair of left and right handle halves and the hinge portion are integrally formed of a resin material, and the hinge portion is It is a syringe operation aid that is a folding hinge using the flexibility of the resin material.

  According to the syringe operation assisting device according to claim 1, the operation handle can be integrally connected to the rear end portion of the plunger, and the grip portion provided on the operation handle is firmly grasped with five fingers. The plunger can be pushed and pulled with force. Moreover, by gripping the grip portion, the rear end portion of the plunger is prevented from coming off from the clamp portion. Therefore, with a simple configuration, it is easy to grasp ergonomically, the plunger rear end portion of the syringe can be securely held, and the plunger pulling operation can be simplified.

  According to the syringe operation assisting device according to the second aspect, the shape of the operation handle can be simplified and reduced in weight, and can be easily ergonomically manufactured while being easily manufactured.

  According to the syringe operation assisting device according to claim 3, since the longitudinal direction of the forearm of the operator who naturally grasps the grasping portion substantially coincides with the central axis of the syringe, the ergonomic operation is further facilitated. The person can perform administration work etc. with an easy posture.

  According to the syringe operation assistance tool according to the fourth aspect, since the syringes having different sizes can be operated with one syringe operation assistance tool, the convenience can be improved.

  According to the syringe operation aid according to the fifth aspect, since the left and right handle halves and the hinge portion can be integrally formed of the resin material, the configuration of the syringe operation aid can be simplified.

It is a perspective view which shows an example of the syringe operation assistance tool which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state by which the handle half body of the syringe operation assistance tool which concerns on the same Embodiment 1 was opened. It is a side view of the syringe operation assistance tool by the III arrow of FIG. It is a rear view of the syringe operation assistance tool by the III arrow of FIG. It is a front view of the syringe operation assistance tool by the arrow V of FIG. It is a front view which shows the state by which the handle half body of the syringe operation assistance tool which concerns on the same Embodiment 1 was opened. FIG. 7 is an inner side view of the half handle body taken along the line VII-VII in FIG. 5 according to the first embodiment. It is a side view which shows a syringe, a syringe operation assistance tool, and an operator's forearm when the large syringe is clamped with the syringe operation assistance tool which concerns on the same Embodiment 1. FIG. It is a side view which shows a syringe, a syringe operation assistance tool, and an operator's forearm when the small syringe is clamped with the syringe operation assistance tool which concerns on the same Embodiment 1. FIG. It is a front view of the syringe operation assistance tool which concerns on Embodiment 2 of this invention. It is a front view which shows the state by which the handle half body of the syringe operation assistance tool which concerns on the same Embodiment 2 was opened.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 of the Invention

  FIGS. 1-9 has shown an example of the syringe operation assistance tool 1 which concerns on Embodiment 1 of this invention.

  The syringe operation assisting tool 1 is attached to the rear end portion of the plunger of the syringe in a handle shape to facilitate the pushing and pulling operation of the plunger. The operation handle 2 having the main body shape is, for example, substantially U It is a substantially rod shape that is curvedly formed into a letter shape or a substantially letter shape.

  The operation handle 2 includes a pair of left and right handle halves 2L and 2R formed of a synthetic resin material or the like. These left and right handle halves 2L and 2R are shaped to be symmetrical with respect to the flat center joint surface 2S, and the handle halves 2L and 2R are closed together as shown in FIG. 2 main body shape is made.

  A hinge portion 3 is provided at one end of the operation handle 2, and the left and right handle halves 2L and 2R can be opened and closed by the hinge portion 3. FIG. 2 shows a state where the handle halves 2L and 2R are slightly opened. The hinge portion 3 is configured by, for example, two outer hinges 3a integrally formed on one of the handle halves 2L and 2R and the two outer hinges integrally formed on the other of the handle halves 2L and 2R. One inner hinge 3b sandwiched between 3a and a hinge pin 3c penetrating the three outer hinges 3a and the inner hinge 3b.

  Further, a linear grip portion 4 is provided on the other end of the operation handle 2, that is, on the opposite side of the hinge portion 3. The grip portion 4 is a portion that is gripped by the operator's hand when the handle halves 2L and 2R are in a closed state, and a handle grip-like concavo-convex shape 4a is formed so as to be easily put on a finger.

  Further, a clamp portion 5 is formed at an intermediate portion of the operation handle 2 and at a position closer to the vicinity of the hinge portion 3 than the grip portion 4. In this embodiment, the clamp part 5 is provided adjacent to the hinge part 3. The clamp portion 5 is a portion that holds the rear end portion of the plunger of the syringe when the handle halves 2L and 2R are closed, and can hold the rear end portions of the plungers having two different sizes, for example. Thus, it has two holding parts 5A and 5B. These holding parts 5A and 5B are coaxially arranged along the central axis C of the syringe.

  As shown in FIGS. 8 and 9, general disposable syringes 8 </ b> A and 8 </ b> B include a cylinder 9 and a plunger 10 inserted into the cylinder 9. A tip 11 serving as a discharge portion is formed at the front end of the cylinder 9, and a plate-like wing plate 12 is formed at the rear end to hang the index finger and middle finger when the plunger 10 is pressed. A seal rubber 13 is fitted to the front end portion of the jar 10, and a hook-like finger rest portion 14 for pressing the plunger 10 with a thumb is formed at the rear end portion. The finger pad 14 has a disk shape, and the outer diameter of the finger pad 14 is set according to the size of the syringes 8A and 8B. The size is preferably about 25cc to 200cc in handling. For example, the syringe 8A is for 100cc, and the syringe 8B is for 50cc.

  As shown in FIGS. 3 and 5 to 7, the holding portions 5 </ b> A and 5 </ b> B are large and small for fitting the finger contact portions 14 of the plunger 10 into the center joint surfaces 2 </ b> S of the left and right handle halves 2 </ b> L and 2 </ b> R, respectively. Two holding recesses 5a and 5b each having a half-disc shape are coaxially connected in the direction of the central axis C, and further, shaft escape portions 5c and 5d that avoid the shaft portion of the plunger 10 are formed. Is. For example, here, the holding recess 5b having a smaller diameter for the syringe 8B is disposed closer to the grip 4.

  With the left and right handle halves 2L, 2R open, that is, with the clamp 5 open, the finger rest 14 at the rear end of the plunger 10 is moved to the holding portion 5A (holding recess 5a) with the matching size. ) Or the holding portion 5B (holding recess 5b) and the handle halves 2L and 2R are closed, the clamp portion 5 is closed and the finger contact portion 14 of the plunger 10 is held by the clamp portion 5. The plunger 10 cannot move in any direction before or after the central axis C with respect to the clamp portion 5.

  By the way, the curved shape of the operation handle 2 is set so that the grip portion 4 is located on the opposite side of the syringes 8A and 8B with respect to the clamp portion 5. That is, as shown in FIGS. 8 and 9, in the state where the syringe 8 </ b> A or 8 </ b> B is held by the clamp portion 5 of the syringe operation assisting tool 1, the grasping portion 4 is the rear end portion of the syringe 8 </ b> A or 8 </ b> B. ) Is curved so as to be located behind the gap.

  Further, the relative angle θ of the gripper 4 with respect to the central axis C of the syringe 8A or 8B held by the clamp 5 is such that the longitudinal direction of the forearm 17 of the operator who naturally grips the gripper 4 is the same as the syringe central axis C. The angle is set to be substantially coincident (parallel), but the angle is not particularly limited. In the present embodiment, for example, θ = 60 ° is set.

  According to the syringe operation assisting tool 1 configured as described above, the pair of left and right handle halves 2L and 2R are closed around the hinge portion 3 to form the operation handle 2, and at the same time, the syringe 8A is operated by the clamp portion 5. , 8B, when the rear end portion (finger holding portion 14) of the plunger 10 is held, the operation handle 2 extends integrally from the rear end portion of the plunger 10, and the other end of the operation handle 2 is curved. The grip portion 4 provided on the side is located behind the rear end portion of the plunger 10 with a space therebetween.

  For this reason, the operator can firmly hold the grip portion 4 with five fingers, and can push and pull the plunger 10 with force. And by grasping the grip part 4, the pair of left and right handle halves 2L and 2R are prevented from opening, and the finger contact part 14 at the rear end of the plunger 10 does not come out of the clamp part 5. .

  In this way, with a very simple and inexpensive configuration, it is easy to grasp ergonomically, and the plunger 10 rear end portion of the syringes 8A and 8B can be reliably held, and the pushing and pulling operation of the plunger 10 is simplified. Can do. Therefore, even when a highly viscous fluid such as liquid food is administered with a syringe, the administration operation can be facilitated.

  Moreover, in this syringe operation assistance tool 1, relative angle (theta) with respect to the central axis C of syringe 8A or 8B hold | maintained at the clamp part 5 of the holding | gripping part 4 is used, and the forearm 17 of the operator who hold | gripped the holding part 4 naturally. Since the longitudinal direction is set to an angle that substantially coincides with the syringe center axis C, it is easier to grasp ergonomically, and the operator can perform the administration work with an easy posture.

  Furthermore, in this syringe operation aid 1, a plurality of holding parts 5A and 5B are provided in the clamp part 5, and these holding parts 5A and 5B are coaxially arranged along the syringe center axis C, so that one syringe The operation assisting tool 1 can handle the syringes 8A and 8B having different numbers of inversions, thereby improving convenience and making the clamp portion 5 compact.

Moreover, the syringe operation assisting tool 1 has an operation handle 2 formed in a substantially rod shape so that the operation handle 2 is positioned on the opposite side of the syringes 8A and 8B with respect to the clamp portion 5. Since it has a curved shape, the shape of the operation handle 2 can be simplified and reduced in weight, making it easy to grasp ergonomically, and at the same time making the manufacture easy.
[Embodiment 2 of the Invention]

  10 and 11 show an example of the syringe operation aid 21 according to Embodiment 2 of the present invention. Since this syringe operation assisting tool 21 has the same configuration as the syringe operation assisting tool 1 shown in the first embodiment of the invention except for the hinge part 23, the same reference numerals are given to the respective parts, and the description thereof will be omitted.

  In this syringe operation assisting tool 21, the pair of left and right handle halves 2L and 2R and the hinge part 23 are integrally formed of a resin material, and the hinge part 23 is a folding hinge utilizing the flexibility of the resin material. It has become. The shape of the hinge portion 23 is, for example, a substantially C shape, but may be another shape. In short, the hinge portion 23 and the handle halves 2L and 2R may be integrally formed of a synthetic resin material.

  Thus, if the left and right handle halves 2L, 2R and the hinge portion 23 are integrally formed of a resin material, the configuration of the syringe operation assisting tool 21 is simplified, the number of parts and the number of assembly steps are reduced, and the manufacturing cost is reduced. can do.

  In addition, the syringe operation aids 1 and 21 according to the present invention can be suitably used for a wide range of operations using a syringe, such as collection of body fluid and drainage using a syringe, in addition to administration of liquid food by a syringe.

  By the way, in Embodiments 1 and 2 described above, the operation handle 2 is formed in a substantially rod shape, and the hinge portion 3 and the grip portion 4 are provided at both ends thereof, and the intermediate portion of the operation handle 2 and the grip portion 4 are provided. Although the clamp part 5 is formed in the position near the hinge part 3, it is not limited to this shape. For example, the grip portion 4 may be formed in a loop shape, or the positional relationship among the hinge portion 3, the grip portion 4, and the clamp portion 5 may be varied.

1,21 Syringe operation aid 1
2 Operation handle 2L, 2R Handle half body 2S Center joint surface 3, 23 Hinge part 4 Gripping part 5 Clamp part 5A, 5B Holding part 8A, 8B Syringe
10 Plunger
14 Finger rest that is the rear end of the plunger
17 Worker's forearm C Plunger axial direction θ Grip angle

Claims (5)

A syringe operation aid for facilitating operation of the plunger attached to the rear end of the plunger of the syringe in the form of a handle,
It consists of a pair of left and right handle halves, and has an operation handle that forms the main body when these handle halves are closed together,
Further, a hinge portion that allows the handle half to be opened and closed,
A gripping part gripped by an operator's hand in a state where the handle halves are closed;
A clamp for holding the plunger rear end when the handle halves are closed together;
With
The operation handle is a syringe operation aid, wherein the grip portion is formed on the opposite side of the syringe with respect to the clamp portion.   The operation handle is formed in a substantially rod shape, the hinge portion is provided at one end portion of the operation handle, the gripping portion is provided at the other end portion of the operation handle, the clamp portion is an intermediate portion of the operation handle, Further, the operation handle is provided closer to the hinge portion than the grip portion, and the operation handle is curved so that the grip portion is located on the opposite side of the syringe with respect to the clamp portion. The syringe operation aid according to claim 1.   The relative angle of the grip portion with respect to the central axis of the syringe held by the clamp portion is an angle at which the longitudinal direction of the forearm of the operator who naturally grips the grip portion substantially coincides with the central axis of the syringe. The syringe operation aid according to claim 2.   The clamp portion has a plurality of holding portions so as to hold the plunger rear end portions of syringes of different sizes, and the holding portions are arranged coaxially along the central axis of the syringe. The syringe operation assistance tool according to any one of claims 1 to 3.   The pair of left and right handle halves and the hinge portion are integrally formed of a resin material, and the hinge portion is a bending hinge utilizing the flexibility of the resin material. The syringe operation aid according to any one of 4.

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