JP4332532B2 - Drug administration device - Google Patents

Description

  The present invention relates to a drug administration device, and more particularly to a drug administration device capable of administering a drug to a vagina or an anus.

Suppositories are often used to treat vaginal infections and anal diseases. The administration method is usually placed in a vagina or anus in the form of a tablet or capsule. Briefly, as shown in FIG. 10, first, one end 11 of the suppository 1 is aligned with the entrance of the vagina or the anus, and the suppository 1 is inserted into the vagina or the anus using a finger and pushed. However, such traditional administration methods have the following problems.
1. Before administering a suppository, the recipient must wash his hands thoroughly or wear disinfected gloves.
2. Vagina and the inner wall of the anus are easily damaged by the fingernails of the recipient. Injury of the inner wall is not only painful, but may cause complications.
3. The process of administering suppositories by hand can cause emotional trauma in the patient.
4). Since suppositories are limited to the length of a human finger and cannot be inserted to a reasonable depth, the effect is not fully achieved, and the treatment time may be unnecessarily prolonged.

  Accordingly, an object of the present invention is to provide a drug administration device that can administer a suppository without putting a finger into the body cavity of a patient in order to solve the above problems.

  In order to achieve the above object, according to the present invention, from one side, an outer tube body having a tubular wall having both ends formed at a drug insertion end and a drug discharge end, and both ends thereof are respectively located in the tubular wall. A forward end that moves to the drag release end, and a forward end that is opposite to the forward end and is exposed to the outside of the drag input end, and a predetermined range from the forward end. A drug administration device comprising an extension plunger that is an insertion portion that can enter and exit into the tubular wall, wherein an opening is formed at the drug discharge end, and a plurality of the devices are provided along the edge of the opening. The flexible rib protrudes in an arc shape in a direction deviating to the opening center line outside the opening to block the drag release end like a fence, and the flexible rib is connected to the first rib and the first rib. 2 ribs, 3rd ribs and 4th ribs respectively There is at least one, and the first rib and the second rib protrude from the pair of first sides of the opening edge that are opposed to each other in a relative, interlaced, and parallel manner. The third rib and the fourth rib do not cross each other from the pair of second sides that are between the pair of first sides at the opening edge and face each other, and the extension line is Provided is a drug administration device characterized in that it intersects with an extension line of the first rib and the second rib, but protrudes so as not to substantially intersect any of them.

  According to another aspect of the present invention, there is provided an outer tube body having a tubular wall having both ends formed at a drag input end and a drug discharge end, and both ends thereof in the tubular wall. A forward pushing end that moves to the opposite side of the forward pushing end and exposed to the outside of the drag input end, and the tubular wall is within a predetermined range from the forward pushing end. A drag administration device comprising an extending plunger that is an insertion part that can be inserted into and removed from the drug delivery device, wherein an opening is formed at the drug discharge end, and a plurality of flexible ribs are formed along the opening edge Projecting in an arc shape in a direction biased toward the opening center line outside the opening, blocking the drag release end like a fence, and the insertion portion of the extending plunger extends along the axis and extends from the axis. Shaped to project radially A plurality of wing plates, each of the plurality of wing plates being parallel to the axis and having a free end facing the inner surface of the tubular wall, and the plurality of wing plates There are a pair of plates arranged oppositely and symmetrically in the plate, and notches are formed in the free ends of the pair of wing plates, respectively, and flexible fingers are placed in the inside of the tubular wall in each notch. There is also provided a drug administration device which protrudes until it comes into contact with a surface and can rub against the inner surface when the insertion portion enters and exits.

  Since the drug administration device according to the invention can administer a suppository into a body cavity without inserting a finger into the body cavity, the administration of the suppository is performed in a simpler manner in a sanitary, safe and effective manner. Obviously convenient because it allows you to

  These and other objects, features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiment of the present invention as illustrated in the accompanying drawings.

  As shown in FIG. 1, the drug administration device of the present invention has an outer tube body 2 and an extending plunger 3. The outer tube body 2 has a tubular wall 22 that defines a passage 21 along its axial direction X and can accommodate a solid suppository 4 (see FIG. 3) such as a tablet or capsule. Yes. The tubular wall 22 is formed such that its outer cross-section has a shape without a projection, such as a circle or an ellipse. Both ends of the tubular wall 22 in the axial direction X are a drag throw-in end 221 and a drag discharge end 222, two flanges 223 projecting out of the tube from the drag throw-in end 221, A plurality of protrusions 224 arranged at intervals on the inner surface are formed. The drug insertion end 221 is formed so that the suppository 4 can be put into the passage 21. The drag release end 222 is formed so as to be inserted into a human body cavity.

  The extending plunger 3 has a front end 31 and a back end 32 at both ends. The forward pushing end 31 is in the tubular wall 22 and can move to the drag release end 222, and its end face is formed into a curved surface. The pushing end 32 is on the opposite side of the pushing end 31 and is exposed outside the drag input end 221. Further, a predetermined range from the front pushing end 31 is a portion that can enter and exit the tubular wall 22 and is referred to as an insertion portion 30. In addition, the pushing end 32 of the extending plunger 3 is formed larger than the passage 21 of the tubular wall 22 so that it cannot enter the passage 21.

  Referring also to FIG. 2, an opening 20 is formed at the drag release end 222, and a plurality of flexible ribs 23 are formed in an arc shape along the periphery of the opening 20 in a direction that is biased toward the opening center line outside the opening 20. The drug discharge end 222 is blocked like a fence. Thus, in a normal state, as shown in FIG. 3, it is possible to prevent the suppository 4 from going out via the drug release end 222 from the passage 21. In addition, the flexible rib 23 includes a plurality of first and second ribs 231a protruding from a pair of first sides 220a facing each other at the periphery of the opening 20 in a relative, interlaced, and parallel manner. Have. Further, each of the flexible ribs 23 has third and fourth ribs 231b that protrude from a pair of second sides 220b that are between the pair of first sides 220a at the periphery of the opening 20 and face each other. ing. The third and fourth ribs 231b do not intersect with each other, and the extension lines thereof intersect with the extension lines of the first and second ribs 231a, but do not substantially intersect any of them. The flexible ribs 23 are all formed from a flexible material having flexibility.

  In addition, referring to FIG. 3, the arcuate protrusion of the flexible rib 23 substantially matches the curvature of the end surface at the front end 31 of the extending plunger 3.

  The extending plunger 3 and the insertion portion 30 each have a length sufficient for the front end 31 to scrape the flexible rib 23 to be exposed to the outside of the drug discharge end 222, and the flexible rib 22 has a drag release. The return of the forward pushing end 31 exposed outside the end 222 into the tubular wall 22 can be restricted.

  As shown in FIG. 4, the insertion portion 30 in the extending plunger 3 has two pairs of wing plates 33 and 34 that extend along the axis X in FIG. 1 and project radially from the axis X in a cross shape. is doing. Each of the wing plates 33 and 34 has free ends 330 and 340 that are parallel to the axis X and face the inner surface of the tubular wall 22 with a gap therebetween. Further, as shown in FIG. 1, recesses 331 and 341 are formed in the free ends 330 and 340 of the wing plates 33 and 34 at positions close to the pushing end 32.

  As shown in the figure, the two pairs of wing plates 33, 34 are both arranged oppositely and symmetrically, but the free ends 330 of the pair of wing plates 33 numbered 33 are respectively provided with notches 332. Is formed. Further, the flexible finger 333 protrudes into each notch 332 until it comes into contact with the inner surface of the tubular wall 22, and can be rubbed against the inner surface when the insertion portion 30 enters and exits.

  Referring to FIGS. 3 and 4, when using the drug delivery device of the present invention, the outer tube 2 is first placed with the drug injection end 221 on top, and the suppository 4 is routed through the tubular wall 22. Put in 21. Then, the suppository 4 falls to the drug release end 222, but is prevented by the flexible rib 23 and thus does not go out of the passage 21. Subsequently, the extending plunger 3 is inserted into the passage 21 to a position where the flexible finger 333 in the wing plate 33 can contact and rub against the inner surface of the tubular wall 22. As a result, if there is no action on the pushing end 32 of the plunger 3 due to a further external force, the plunger 3 and the suppository 4 can be held in the passage 21 in a stable state, and vibration or movement by the user, There is no possibility of going out of the outer tubular body 2 due to a change of direction when used.

  When the user further pushes the pushing end 32 of the plunger 3 in this state, first, the notches 332 respectively formed in the free end 330 of the wing plate 33 reach the position where the projection 224 in the tubular wall 22 is formed. . At that time, the flexible finger 333 will engage the corresponding protrusion 224 so that the user will notice greater friction between the flexible finger 333 and the corresponding protrusion 224. be able to. In this example, this means that the plunger 3 has already been prepared to administer the suppository 4 to the patient.

  As shown in FIGS. 5 to 7, when using the drug administration device of the present invention, when the user himself / herself is also a patient, the outer tube 2 is placed at a position slightly before the buttocks 223 with the thumb and middle finger. With the index finger, the back end 32 of the plunger 3 is brought into contact with the index finger so that it can be pushed at any time. In this way, the outer tube 2 of the drug administration device is inserted from the drug discharge end 222 into a vagina, an anus, etc. to an appropriate depth. Then, the pushing end 32 of the plunger 3 is pushed to the drag releasing end 222 with the index finger, and the pushing end 31 of the plunger 3 is advanced to the drag releasing end 222 along the axis X. At this time, the air in front of the front end 31 in the passage 21 is discharged to the rear of the front end 31 through a gap between the wing plates 33 and 34 and the inner surface of the tubular wall 22. The By continuing to push the pushing end 32 of the plunger 3 until the pushing end 31 reaches the drag release end 222 of the outer tube 2, the suppository 4 opens the opening 20 at the drag release end 222 of the outer tube 2 (see FIG. 2). And the flexible rib 23 to be pushed into the interior of the vagina or the anus. Thereby, the suppository 4 can be administered to an appropriate position in the body cavity.

  As shown in FIGS. 8 and 9, after the suppository 4 is administered into the body cavity, the drug administration device is pulled out of the body cavity and the plunger 3 is pushed until the pushing end 32 reaches the drug insertion end 221 of the outer tube 2. Press and hold. As a result, the front pushing end 31 of the plunger 3 is pushed out of the drag discharge end 222 of the outer tube 2 by scraping the flexible rib 23 and exposed. Further, the recesses 331 and 341 formed in the free ends 330 and 340 are correspondingly engaged with the protrusions 224 formed on the inner surface of the tubular wall 22. At the same time, the flexible rib 23 extends to the wing plates 33, 34, restricting the movement of the front end 31 of the plunger 3 exposed outside the drag discharge end 222 of the outer tube 2, It becomes impossible to return the outer tube body 2 to the drag input end 221 along the axis X.

  Accordingly, even if the plunger 3 is pulled back to the original position in order to reuse the drug administration device of the present invention, the front pushing end 31 of the plunger 3 breaks the flexible rib 23, and the structure of the outer tube body 2. Will be destroyed. Therefore, the use of the drug administration device of the present invention is only one time.

The advantages of the drug administration device of the present invention having the configuration as described above are summarized as follows:
1. Since the suppository 4 is put into the outer tube 2 and then administered into the body cavity by the plunger 3, there is no contact with the suppository 4 by hand in the actual administration process, which is advantageous for maintaining and promoting hygiene. It is.
2. The flexible rib 23 not only prevents the suppository 4 from being moved unscheduled due to the fact that it is formed at the drug discharge end 222 of the outer tube body 2 and its configuration and flexibility, but also prevents the suppository 4 from moving. It also works to make it easier to administer. Thus, the use of the drug administration device of the present invention is simple and convenient.
3. The outer tube 2 has a circular or oval cross-sectional outline, and the flexible rib 23 is also made of a flexible material having flexibility, so that the damage to the body cavity is reduced to the minimum. In addition, discomfort during use is reduced.
4). Since the outer tube 2 can be formed in different lengths depending on the shape of the suppository 4 and the depth of administration, the suppository 4 can be administered at a reasonable depth in the body cavity. Treatment
The effect can be fully achieved.
5. Even if the plunger 3 is pulled back to the original position in order to reuse the drug administration device of the present invention, the flexible rib 23 is broken at the front end 31 of the plunger 3, and the overall structure of the outer tube 2 is also reduced. Destroyed. Therefore, since the drug administration device of the present invention cannot be reused, its safety and hygiene can be improved.

  As described above, the drug administration device of the present invention is clearly superior because the suppository as a suppository can be administered hygienically, safely and effectively into a body cavity.

It is a side view which shows the structure of the outer tube body and extending | stretching plunger of embodiment of the drug administration apparatus of this invention. It is a front view which shows arrangement | positioning of the flexible rib in embodiment of the drug administration apparatus of this invention. In embodiment of the drug administration device of this invention, it is a side view in the state where the suppository to be administered was prepared. It is sectional drawing of the VV cross section in FIG. It is explanatory drawing which shows the usage method of embodiment of the drug administration apparatus of this invention. In embodiment of the drug administration device of this invention, it is a side view of the state which releases the suppository to administer. In embodiment of the drug administration device of this invention, it is a side view of the state which released the suppository to administer. In embodiment of the drug administration device of this invention, it is a side view of the state where the front pushing end of the extending plunger is exposed outside the drug discharge end of the outer tube. In embodiment of the drug administration device of this invention, it is a front view which shows the state which cannot return the front end of an extending | stretching plunger by the effect | action of a flexible rib. It is explanatory drawing which shows the traditional usage method of a suppository.

Explanation of symbols

2 Outer tube body 20 Opening 21 Passage 22 Tubular wall 220a First side 220b Second side 221 Drag throw-in end 222 Drag discharge end 223 Gutter part 224 Projection part 23 Flexible rib 231a First and second ribs 231b Third, Fourth rib 3 Stretching plunger 30 Insertion portion 31 Push end 32 Push end 33, 34 Wing plate 330, 340 Free end 331, 341 Recess 332 Cut 333 Flexible finger 4 Suppository

Claims (9)

An outer tube body having a tubular wall formed at both ends of a drag input end and a drag release end, a forward pushing end at which both ends are in the tubular wall and move to the drag discharge end, and the front It is on the opposite side of the push end and is a rear push end exposed outside the drag input end, and a predetermined range from the front push end is an insertion portion that can enter and exit the tubular wall. A drug administration device comprising a stretching plunger,
An opening is formed at the drag release end, and a plurality of flexible ribs project along the opening edge in an arc shape in a direction biased to the center line of the opening outside the opening so that the drag release end has a fence shape. And the rib has at least one of a first rib, a second rib, a third rib, and a fourth rib, and the first rib and the second rib Each of the opening edges protrudes in parallel and parallel from a pair of first sides facing each other, and the third rib and the fourth rib respectively correspond to the pair of first sides at the opening edge. From a pair of second sides that are between one side and are opposed to each other, they do not intersect each other, and the extension line intersects the extension line of the first rib and the second rib. Projecting so as not to cross any of Drag administration device according to symptoms. 2. The drug administration device according to claim 1, wherein the insertion portion of the extending plunger has a plurality of wing plates formed so as to extend along the axis and project radially from the axis. The drug administration device according to claim 2, wherein each of the plurality of wing plates has a free end that is parallel to the axis and faces the inner surface of the tubular wall with a gap. . In the plurality of wing plates, there is a pair arranged symmetrically opposite to each other, and notches are formed in the free ends of the pair of wing plates, and the flexible fingers are included in the notches. 4. The drug administration device according to claim 3, wherein the drug administration device protrudes until it comes into contact with the inner surface of the tubular wall and can rub against the inner surface when the insertion portion enters and exits. 5. The drug administration device according to claim 4, wherein a protrusion that can be fitted to the flexible finger is further formed on an inner surface of the tubular wall. The drug administration device according to claim 1, wherein the rib is formed of a flexible material having flexibility. The extending plunger has a length sufficient for the front end to be exposed to the outside of the drag discharge end by scraping the rib, and the rib is exposed to the outside of the drag release end. The drug administration device according to claim 1, wherein the return to the inside of the tubular wall can be restricted. The drug administration device according to claim 6, wherein the arc-shaped protrusion of the rib substantially matches the curvature of the end surface at the forward pushing end of the extending plunger. An outer tube body having a tubular wall formed at both ends of a drag input end and a drag release end, a forward pushing end at which both ends are in the tubular wall and move to the drag discharge end, and the front The insertion portion is located on the opposite side of the push end and is exposed to the rear push end exposed outside the drag input end, and a predetermined range from the front push end is an insertion portion that can enter and exit the tubular wall. A drug administration device comprising a stretching plunger,
An opening is formed at the drag discharge end, and a plurality of flexible ribs project in an arc shape in a direction that is biased toward the center line of the opening outside the opening so that the drag discharge end has a fence shape. Shut off,
The insertion portion of the extending plunger has a plurality of wing plates formed so as to extend along the axis and project radially from the axis, and each of the plurality of wing plates is parallel to the axis. And having a free end facing the inner surface of the tubular wall with a gap,
In the plurality of wing plates, there is a pair arranged symmetrically with respect to the axis , and incisions are formed in the free ends of the pair of wing plates, and flexible fingers are provided in the incisions. It protrudes until it comes into contact with the inner surface of the tubular wall and rubs against the inner surface when the insertion part goes in and out ,
A drug administration device , wherein a projection that can be fitted to the flexible finger is further formed on an inner surface of the tubular wall .

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