CN215351500U - Push-injection type enema administration device - Google Patents

Abstract

The utility model discloses a push-injection type enema dosing device which comprises a push-injection barrel, wherein one end of the push-injection barrel is provided with an opening, the other end of the push-injection barrel is provided with a medicine guide pipe communicated with the inside of the push-injection barrel, a piston is arranged inside the push-injection barrel, one end of the piston is connected with a push-injection rod which extends out of the inside of the push-injection barrel, the side wall of one end, away from the piston, of the push-injection rod is provided with a limiting strip, a limiting assembly is arranged at the opening of the push-injection barrel, the limiting assembly comprises a pressing plate arranged on the outer wall of one end, close to the opening, of the push-injection barrel and a sealing plate rotatably arranged on the pressing plate, a push-injection hole for the push-injection rod to pass through is formed in the sealing plate, and the push-injection hole is communicated with a limiting hole for the limiting strip to pass through. The push-injection type enema dispenser provided by the utility model avoids the back suction of the medicine during treatment, and effectively prevents the situation that the medicine in the dispenser is accidentally extruded in the transportation or storage process.

Description

Push-injection type enema administration device

Technical Field

The utility model relates to the field of medical equipment, in particular to a push-injection type enema administration device.

Background

Conventional enema device of dosing, generally be the spherical plastic bag that contains enema, the capacity is 10 ~ 20ml, during the use, inserts patient's anus with its front end pipe and neck, then extrudes the sacculus, extrudes the liquid medicine in the patient, but this kind of enema mode of dosing very easily appears the liquid medicine resorption after the use, causes the not enough and inaccurate condition of quantity.

Although in the prior art, the way of using push injection to open the dew plug and administer has been disclosed to prevent the suck-back of liquid medicine, these push injection formula open the dew plug often can not carry out spacing consideration to the push injection pole of pushing the liquid medicine, perhaps do not consider the liquid medicine by the unexpected circumstances of pushing out of injection, and in actual medical treatment process, open the dew and fill the liquid medicine and often use by oneself after the patient goes home, if the patient uses current push injection formula to open the dew plug, just easily in carrying the transportation, cause the accident of liquid medicine to release.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a push-injection type enema dispenser, which avoids the back suction of medicines during treatment and effectively prevents the situation that the medicines in the dispenser are accidentally extruded in the transportation or storage process.

The technical scheme of the utility model is as follows:

a push injection type enema dosing device comprises a push injection cylinder, wherein one end of the push injection cylinder is provided with an opening, the other end of the push injection cylinder is provided with a medicine guide pipe communicated with the inside of the push injection cylinder, a piston is arranged inside the push injection cylinder, one end of the piston is connected with a push injection rod which extends out of the inside of the push injection cylinder, the side wall of one end, away from the piston, of the push injection rod is provided with a limiting strip, the opening of the push injection cylinder is provided with a limiting assembly, the limiting assembly comprises a pressing plate and a sealing plate, the pressing plate is arranged on the outer wall of one end, close to the opening, of the push injection cylinder, the sealing plate is rotatably installed on the pressing plate, a push injection hole is formed in the sealing plate, and the push injection hole is communicated with a limiting hole through which the limiting strip passes; when the closing plate rotates to the designated position, the limiting strip is aligned with the limiting hole in the length direction of the push injection rod.

The working principle of the technical scheme is as follows: in the scheme, the glycerine enema can be stored in a cavity of the injection barrel between the piston and the medicine guide tube in advance, and at the moment, one end of the injection rod with the limiting strip is completely outside the injection barrel, and the limiting strip and the limiting hole are also in a non-aligned state, namely in the state, due to the limiting of the limiting strip, the injection rod cannot be pushed into the injection barrel normally, and the glycerine enema cannot be discharged; when the medical injector is used for treatment, a patient can rotate the closing plate, so that the limiting strip is aligned with the limiting hole in the length direction of the injection rod, and at the moment, the patient can push the injection rod with the limiting strip part into the injection cylinder, so that liquid medicine is removed, and the treatment process is completed. Due to the design, the liquid medicine in the dispenser is greatly prevented from being accidentally extruded due to the fact that the push injection rod is extruded during the transportation or storage process.

In a further technical scheme, a limit block is arranged on one side, close to the injection cylinder, of the closing plate, an arc-shaped sliding groove is formed in the pressing plate, the limit block is slidably mounted in the arc-shaped sliding groove, the arc-shaped sliding groove comprises an initial groove and a positioning groove which are matched with the limit block, a channel groove is arranged between the initial groove and the positioning groove, two ends of the channel groove are respectively communicated with the initial groove and the positioning groove, and the width between two side groove walls of the channel groove is smaller than the thickness of the limit block; when the limiting block slides into the positioning groove, the limiting strip is aligned with the limiting hole in the length direction of the pushing rod.

In the scheme, when the medicine device is not used, the limiting block can be positioned in the initial groove, when the medicine device is used for treatment, a patient can rotate the closing plate to enable the limiting block to slide through the channel groove and enter the positioning groove, at the moment, the limiting strip is aligned with the limiting hole in the length direction of the injection rod, and the patient can push the injection rod with the limiting strip part into the injection cylinder to enable liquid medicine to be discharged; simultaneously, in this scheme, width between the both sides cell wall of channel groove is less than the thickness of stopper is convenient for prevent that the stopper can freely slide between the arc sliding tray, avoids dosing the ware when not using, and the stopper can be unexpected to slide in the constant head tank.

In a further technical scheme, the inner shape of the injection cylinder is prism-shaped.

In this scheme, the inside shape of a section of thick bamboo of annotating is the prism form, is convenient for further prevent that the pole of annotating in the section of thick bamboo of annotating and piston self can unexpected the rotation, leads to the alignment of spacing and spacing hole for it is spacing to be relieved by accident to annotate the pole. It should be noted that, because the piston itself functions, the piston inside the plunger barrel is usually made of a material with certain elasticity, and the side surface of the piston is usually closely attached to the inside of the plunger barrel everywhere, that is, a certain pressure exists between the piston and the inner wall of the plunger barrel, in this case, even if the inside of the plunger barrel is of a conventional cylindrical design, the piston inside the plunger barrel is not easily rotated accidentally, so that the inner shape of the plunger barrel is prism-shaped, which is only a preferred design in this scheme.

In a further technical scheme, the limiting strips are plate-shaped, the number of the limiting strips is four, and the four limiting strips are arranged on the injection rod in a surrounding mode at intervals.

In this scheme promptly, select four platelike spacing to encircle to set up on the injection pole, be convenient for when guaranteeing better spacing effect, also make things convenient for the patient to remove spacingly when using fast.

In a further technical scheme, the piston is a rubber plug.

Rubber has better deformability and soft characteristic and is nontoxic to the human body, and in the scheme, the piston is made of rubber, so that the sealing effect of the piston on the liquid medicine in the injection cylinder is improved conveniently.

In a further technical scheme, the inner wall of the injection cylinder is provided with a convex ring, and the side wall of the piston is provided with a sawtooth ring used for limiting the piston to slide towards the opening direction of the injection cylinder.

In the scheme, when the piston pushes towards the direction of the medicine guide pipe, the sawtooth ring on the side wall of the piston is only blocked by the small bulge ring on the inner wall of the injection cylinder, and when the piston is pulled back towards the opening direction of the injection cylinder, the piston is subjected to large resistance, so that the pull-back of the piston is limited, and the situation that the medicine liquid is sucked back due to the fact that the injection rod is pulled back accidentally after treatment of a patient is completed is effectively avoided; and because the piston is made of rubber and has certain deformation capacity, the design of the sawtooth ring and the bulge ring does not influence the tightness of the piston.

In a further technical scheme, the drug delivery tube is a silicone tube.

Silica gel has better compliance and human comfort level, and in this scheme, the medicine guide tube is the silicone tube, is convenient for improve patient's treatment comfort level, and is difficult for haring patient's rectum mucosa.

In a further technical scheme, the outer wall of the injection cylinder is provided with scale marks.

In this scheme promptly, the outer wall of a section of thick bamboo of injecting is equipped with the scale mark, and the patient of being convenient for can the accuracy dose when using.

In a further technical scheme, one end of the push injection rod, which is far away from the piston, is connected with a push injection plate.

In this scheme, push the pole and keep away from the one end of piston is connected with and pushes the flitch, is convenient for patient's the operation of pushing.

The beneficial effects of the utility model include:

1. in this scheme, open the dew and fill the mode that the liquid medicine took to inject and discharge, prevented the suck-back of liquid medicine, simultaneously, through the cooperation of pressing clamp plate and closing plate, the liquid medicine that has prevented in the ware of dosing of very big degree is in transportation or storage process, because the push rod receives the circumstances that the extrusion leads to the liquid medicine in the ware of dosing to be extruded by the accident.

2. In this scheme, the patient can rotate the closing plate for the stopper slides through the passageway groove gets into in the constant head tank, thereby removes the spacing of injection pole, makes the getting rid of liquid medicine, simple realization remove the operation of injecing to injection pole.

3. In this scheme, the inside shape of a section of thick bamboo of annotating is the prism form, is convenient for further prevent that the pole of annotating in the section of thick bamboo of annotating and piston self can unexpected the rotation, leads to the alignment of spacing and spacing hole for it is spacing to be relieved by accident to annotate the pole.

4. In this scheme, select four platelike spacing to encircle and set up on the injection pole, be convenient for when guaranteeing better spacing effect, also make things convenient for the patient to remove spacingly when using fast.

5. In this scheme, the piston is made for rubber, is convenient for improve the sealed effect of piston to the inside liquid medicine of a section of thick bamboo of annotating.

6. In this scheme, the inner wall of a section of thick bamboo of annotating is equipped with protruding ring, and the lateral wall of piston is equipped with and is used for restricting the gliding serration ring of piston to the opening direction of a section of thick bamboo of annotating, and the effectual patient of having avoided leads to the condition of resorption of liquid medicine because of unexpected pull-back injection pole after the treatment is accomplished.

7. In this scheme, the medicine guide tube is the silicone tube, is convenient for improve patient's treatment comfort level, and is difficult for damaging patient's rectum mucosa.

8. In this scheme, the outer wall of a section of thick bamboo of annotating is equipped with the scale mark, and the patient of being convenient for can the accuracy dose when using.

9. In this scheme, push the pole and keep away from the one end of piston is connected with and pushes the flitch, is convenient for patient's the operation of pushing.

Drawings

FIG. 1 is a schematic cross-sectional view of a bolus injection glycerine enema dispenser according to an embodiment of the present invention;

FIG. 2 is a schematic view of the opening of the plunger of FIG. 1;

FIG. 3 is a schematic view of the closure panel of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the plunger and plunger of FIG. 1;

description of reference numerals:

10-injection cylinder, 20-drug guide tube, 30-piston, 40-injection rod, 50-injection plate, 60-pressing plate, 70-closing plate, 101-graduation line, 102-bulge loop, 301-sawtooth loop, 401-spacing strip, 601-initial slot, 602-channel slot, 603-positioning slot, 701-spacing hole, 702-spacing block, 703-injection hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1:

a push injection type enema administration device comprises a push injection barrel 10, wherein one end of the push injection barrel 10 is provided with an opening, the other end of the push injection barrel 10 is provided with a drug guide tube 20 communicated with the inside of the push injection barrel 10, a piston 30 is arranged inside the push injection barrel 10, one end of the piston 30 is connected with a push injection rod 40 extending out of the inside of the push injection barrel 10, the side wall of one end, far away from the piston 30, of the push injection rod 40 is provided with a limit strip 401, the opening of the push injection barrel 10 is provided with a limit component, the limit component comprises a pressing plate 60 arranged on the outer wall of one end, close to the opening, of the push injection barrel 10 and a closing plate 70 rotatably arranged on the pressing plate 60, the closing plate 70 is provided with a push injection hole 703 for the push injection rod 40 to pass through, and the push injection hole 703 is communicated with a limit hole 701 for the limit strip 401 to pass through; when the closing plate 70 is rotated to a designated position, the limiting strip 401 is aligned with the limiting hole 701 along the length direction of the injection rod 40.

That is, in this embodiment, the closing plate 70 may rotate on the pressing plate 60, and plays a role of sealing and isolating dust for the inside of the syringe 10, the enema liquid may be stored in the cavity of the syringe 10 between the piston 30 and the drug guide tube 20 in advance, when the administration device is not used, one end of the syringe rod 40 with the limiting strip 401 is completely outside the syringe 10, and the limiting strip 401 and the limiting hole 701 are also in a non-aligned state, that is, in this state, due to the limitation of the limiting strip 401, the syringe rod 40 cannot be pushed into the syringe 10, and the enema liquid cannot be discharged; when the injection device is used for treatment, a patient can rotate the closing plate 70, so that the limiting strips 401 are aligned with the limiting holes 701 in the length direction of the injection rod 40, and at the moment, the patient can push the injection rod 40 with the limiting strips 401 into the injection cylinder 10, so that liquid medicine is discharged, and the treatment process is completed. With this arrangement, the liquid medicine in the dispenser is largely prevented from being accidentally squeezed out due to the squeezing of the injection rod 40 during the transportation or storage process.

In another embodiment, as shown in fig. 2 and fig. 3, a limit block 702 is disposed on one side of the closing plate 70 close to the plunger barrel 10, an arc-shaped sliding groove is disposed on the pressing plate 60, the limit block 702 is slidably mounted in the arc-shaped sliding groove, the arc-shaped sliding groove includes an initial groove 601 and a positioning groove 603 corresponding to the limit block 702, a channel groove 602 is disposed between the initial groove 601 and the positioning groove 603, two ends of the channel groove 602 are respectively communicated with the initial groove 601 and the positioning groove 603, and a width between two side groove walls of the channel groove 602 is smaller than a thickness of the limit block 702; when the limiting block 702 slides into the positioning groove 603, the limiting strip 401 is aligned with the limiting hole 701 along the length direction of the injection rod 40.

When the medicine applicator is not used, the limit block 702 can be located in the initial groove 601, and when the medicine applicator is used for treatment, the patient can rotate the closing plate 70, so that the limit block 702 slides through the channel groove 602 to enter the positioning groove 603, at this time, the limit strip 401 is aligned with the limit hole 701 along the length direction of the injection rod 40, and the patient can push the injection rod 40 with the portion of the limit strip 401 into the injection cylinder 10, so that the medicine liquid can be discharged; meanwhile, in this embodiment, the width between the two side groove walls of the channel groove 602 is smaller than the thickness of the limit block 702, so that when the limit block 702 slides through the channel groove 702, a large resistance is applied, or a pressure is generated between the limit block 702 and the channel groove 602, thereby preventing the limit block 702 from unintentionally sliding through the channel groove 602, and therefore, the thickness of the two side groove walls of the channel groove 602 at least between a certain horizontal line is smaller than the thickness of the limit block 702 at the corresponding position, and not any width between the two side groove walls of the channel groove 602 is smaller than the thickness of the limit block 702; meanwhile, the embodiment may also make the closing plate 70 only rotate on the pressing plate 60 and not separate from the pressing plate 60 by matching the shapes of the stop block 702 and the arc-shaped sliding groove.

More specifically, in this embodiment, the pressing plate 60 may also close the opening of the plunger 10, and the positions of the pressing plate 60 corresponding to the limiting hole 701 and the pushing hole 703 of the closing plate 70 are also provided with identical openings, and when the limiting block 702 enters the positioning groove 603, the openings of the pressing plate 60 correspond to the limiting hole 701 and the pushing hole 703 one by one.

In further embodiments, the plunger 10 has an internal shape that is prismatic.

That is, in the present embodiment, the inner shape of the plunger 10 and the piston 30 are prism-shaped, which is convenient to further prevent the plunger 40 and the piston 30 inside the plunger 10 from accidentally rotating, which results in the accidental alignment of the limiting strip 401 and the limiting hole 701, so that the plunger 40 is accidentally disarmed. It should be noted that, because the piston 30 itself functions, the piston 30 is usually made of a material with certain elasticity, and the side surface of the piston 30 is usually closely attached to the inside of the plunger 10 everywhere, i.e. there is a certain pressure between the piston 30 and the inner wall of the plunger 10, in this case, even if the inside of the plunger 10 is designed to be a regular cylinder, the piston 30 inside the plunger 10 is not easy to rotate accidentally, and the piston 10 and the plunger 40 are not subjected to the force for rotating them during transportation, so the inner shape of the plunger 10 is prism-shaped only as a preferred design in this embodiment.

In another embodiment, the limiting strips 401 are plate-shaped, and the number of the limiting strips 401 is four, and the four limiting strips 401 are arranged on the injection rod 40 in a surrounding manner at intervals.

The four limiting strips 401 may be equal or unequal in length, and preferably, the four limiting strips 401 are matched to be distributed on the side surface of the injection rod 40 in a cross shape.

In another embodiment, in order to improve the sealing effect of the piston 30 against the medical fluid inside the plunger 10. The piston 30 is a rubber plug.

In another embodiment, as shown in fig. 4, the inner wall of the plunger 10 is provided with a raised ring 102, and the side wall of the piston 30 is provided with a serrated ring 301 for limiting the sliding of the piston 30 toward the opening of the plunger 10.

That is, in this embodiment, both the sawtooth ring 301 and the protruding ring 102 may be sawtooth-shaped circular rings, the arc surface of the sawtooth ring 301 faces the direction of the drug guide tube 20, the arc surface of the protruding ring 102 faces the opening direction of the syringe 10, when the piston 30 pushes towards the direction of the drug guide tube 20, the sawtooth ring 301 on the side wall of the piston 30 is only blocked by the protruding ring 102 on the inner wall of the syringe 10 less, and when the piston 30 is pulled back towards the opening direction of the syringe 10, the piston 30 will be subjected to greater resistance, so as to limit the pulling back of the piston 30, and effectively avoid the situation that the patient accidentally pulls back the syringe rod 40 to suck back the drug solution after the treatment is completed; moreover, because the piston 30 is made of rubber and has a certain deformation capacity, the design of the sawtooth ring 301 and the bulge ring 102 does not affect the sealing performance of the piston 30.

In other embodiments, the rectal mucosa of the patient is not easily damaged in order to improve the treatment comfort of the patient. The drug guide tube 20 is a silicone tube.

In another embodiment, in order to facilitate accurate administration of the drug to the patient during use, the outer wall of the plunger 10 is provided with graduation marks 101.

In another embodiment, to facilitate the operation of injecting the bolus by the patient, a bolus plate 50 is attached to an end of the plunger rod 40 remote from the plunger 30.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (9)

1. A push injection type enema dosing device comprises a push injection cylinder, wherein one end of the push injection cylinder is provided with an opening, the other end of the push injection cylinder is provided with a medicine guide pipe communicated with the inside of the push injection cylinder, a piston is arranged inside the push injection cylinder, and one end of the piston is connected with a push injection rod which extends out of the inside of the push injection cylinder; when the closing plate rotates to the designated position, the limiting strip is aligned with the limiting hole in the length direction of the push injection rod.

2. The bolus-injection enema drug delivery device according to claim 1, wherein a stopper is disposed on a side of the closing plate close to the plunger barrel, an arc-shaped sliding groove is disposed on the pressing plate, the stopper is slidably mounted in the arc-shaped sliding groove, the arc-shaped sliding groove comprises an initial groove and a positioning groove corresponding to the stopper, a channel groove is disposed between the initial groove and the positioning groove, two ends of the channel groove are respectively communicated with the initial groove and the positioning groove, and a width between two side groove walls of the channel groove is smaller than a thickness of the stopper; when the limiting block slides into the positioning groove, the limiting strip is aligned with the limiting hole in the length direction of the pushing rod.

3. The bolus glycerine enema dispenser of claim 1, wherein the interior shape of the plunger is prism-shaped.

4. The bolus-injection enema applicator of claim 1, wherein the shape of the limiting strips is plate-like, and the number of the limiting strips is four, and the four limiting strips are arranged on the injection rod in a surrounding manner at intervals.

5. The bolus glycerine enema dispenser of claim 1, wherein the plunger is a rubber stopper.

6. The bolus-type enema injector according to claim 5, wherein the plunger has a raised ring on its inner wall and a serrated ring on its side wall to limit the sliding of the plunger toward the opening of the plunger.

7. The bolus-injection glycerine enema dispenser of claim 1, wherein the drug delivery tube is a silicone tube.

8. The bolus-injection glycerine enema dispenser of claim 1, wherein the outer wall of the plunger is provided with graduation lines.

9. The bolus glycerine enema dispenser of claim 1, wherein a bolus plate is attached to an end of the bolus rod remote from the plunger.

Images