CN219700800U - Reusable anorectal drug delivery device - Google Patents

Abstract

The utility model discloses a reusable anorectal drug delivery device, which includes: a main shell, a disposable film sleeve set on the front end of the main shell, and a piston set on the rear end of the main shell. Core rod; wherein, the main housing has a cylindrical shape, the front end of the main housing is provided with a drug administration port, and the rear end of the main housing has an open opening to allow the piston core rod to The main housing is pushed back and forth; the middle and upper part of the main housing is provided with side holes to facilitate the placement of the disposable film sleeve. The main shell and the piston core rod of the reusable anorectal drug dispenser of the utility model can be reused, are environmentally friendly and economical, have a simple overall structure and are easy to use.

Description

A reusable anorectal applicator

Technical field

The utility model relates to the technical field of medical devices, in particular to a reusable anorectal drug delivery device.

Background technique

Ointment refers to a uniform semi-solid external preparation made by mixing raw materials with a greasy or water-soluble base. Suppositories refer to solid preparations with a certain shape made of drugs and suitable bases for intraoral administration in the human body. Suppositories are solid at room temperature. After being inserted into the cavity, they can quickly soften, melt or dissolve in secretions at body temperature, gradually releasing the drug to produce local or systemic effects.

Ointment is a commonly used pharmaceutical dosage form for anorectal diseases. When used, a disposable plastic tube is usually connected to the opening of the ointment. The front end of the plastic tube is implanted into the anus and squeezed to allow the medicine to enter the anorectum. However, this method has certain drawbacks, the most important of which is the residual drugs in the disposable plastic tubes. The disposable plastic tubes need to be replaced every time they are used, which results in drug residues and waste.

Suppositories are commonly used pharmaceutical dosage forms for anorectal diseases. When used, suppositories are usually pushed into the anus and rectum through human fingers. However, this method has certain disadvantages. The most important one (i.e. the first disadvantage) is that it is difficult to operate. Because the fingers are thick, ordinary people cannot insert their fingers into the anus, or they can only insert them shallowly into the anus, and suppositories cannot be delivered. The second disadvantage is that holding fingers in the anus is not conducive to physiological hygiene, and sharp nails can easily scratch the anorectal tissue; the third disadvantage is that the suppository can quickly melt under the action of body temperature, and the surface of the suppository will quickly appear after the finger touches the suppository. If it is partially melted, the medicine will contaminate the fingers, and the fingers will also contaminate the medicine. The suppository will become soft and deformed, causing the suppository to fail to be inserted into the anus or the efficacy to be affected.

Therefore, there is an urgent need to develop a reusable anorectal applicator to solve one or more of the above-mentioned problems.

Contents of the invention

One purpose of this utility model is to provide a new technical solution for a reusable anorectal applicator.

The utility model provides a reusable anorectal drug delivery device, which includes: a main housing, a disposable film sleeve set on the front end of the main housing, and a piston provided on the rear end of the main housing. core rod;

Wherein, the main housing has a cylindrical shape, the front end of the main housing is provided with a drug administration port, and the rear end of the main housing has an open opening to allow the piston core rod to move in the main housing. reciprocating push inside the shell;

The middle and upper part of the main housing is provided with side holes to facilitate the placement of the disposable film sleeve.

Optionally, the side hole is elongated.

Optionally, the length of the side hole is 1.5 cm, and the width of the side hole is 1.0 cm.

Optionally, the length of the main housing ranges from 8 cm to 10 cm.

Optionally, the diameter of the main housing is less than or equal to 1.2 cm.

Optionally, the disposable film cover has an open end and a closed end. When in use, the piston core rod is first pulled back to the lower position of the side hole, and then the disposable film cover is passed through the side hole. hole and pass through the drug administration port, and leave the closed end of the disposable film sleeve at the side hole, and finally fold the open end of the disposable film sleeve and put it on the main shell front end.

Optionally, during use, the ointment or suppository is put into the disposable film sleeve through the administration port.

Optionally, the front end of the piston core rod has a blunt cone shape to match the front end of the main housing.

Optionally, the front end of the piston core rod is provided with an annular groove to enhance the sealing between the main housing and the front end of the piston core rod.

Optionally, the rear end of the piston core rod is provided with a baffle to facilitate finger joint fixation during use.

The method of this utility model has the following advantages:

The reusable anorectal drug dispenser proposed by the utility model uses a low-cost disposable film cover to cleverly isolate the medicine and the main housing, and the human body and the main housing, thereby realizing the reusability of the main housing; through the side The hole design realizes the fixation of the disposable film sleeve. At the same time, the distance of the side holes is cleverly set to match the length of the human anal canal, achieving precise drug push position and avoiding the cost increase caused by marking the scale and the stimulation of the tissue by the rough scale. problem; and through the shape design of the piston core rod, drug push is maximized and drug waste is avoided. Therefore, compared with traditional drug applicators, the reusable anorectal drug applicator of the present invention has a simple overall structure, is easy to use, and is more environmentally friendly, efficient and hygienic.

Description of drawings

Figure 1 is a schematic cross-sectional structural diagram of a reusable anorectal applicator provided by an embodiment of the present invention;

Figure 2 is a front view of a reusable anorectal applicator provided by an embodiment of the present invention;

Figure 3 is a top view of a reusable anorectal applicator provided by an embodiment of the present invention.

Explanation of reference symbols:

1-Main shell;

11-Dosing port;

12-opening;

13-Side hole

2-Disposable film cover;

3-piston core rod;

31-annular groove;

32-Baffle.

Detailed ways

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered a part of the specification.

In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.

Referring to Figures 1-3, the embodiment of the present invention provides a reusable anorectal drug dispenser, which includes: a main housing 1, a disposable film sleeve 2 set on the front end of the main housing 1, and The piston core rod 3 is located at the rear end of the main housing 1;

Wherein, the main housing 1 has a cylindrical shape, the front end of the main housing 1 is provided with a drug administration port 11, and the rear end of the main housing 1 has an open opening 12 so that the piston core rod 3 can be placed in the main housing 1 The middle and upper part of the main housing 1 is provided with a side hole 13 to facilitate the placement of the disposable film sleeve 2.

It should be noted that in this embodiment, the outer surface of the main housing 1 is smooth. In this embodiment, the drug administration port 11 at the front end of the main housing 1 is circular.

Optionally, the side hole 13 of the reusable anorectal applicator according to the embodiment of the present invention is elongated.

Optionally, the length of the side hole 13 in the reusable anorectal applicator according to the embodiment of the present invention is 1.5 cm, and the width of the side hole 13 is 1.0 cm.

Optionally, the length of the main housing 1 in the reusable anorectal applicator according to the embodiment of the present invention ranges from 8 cm to 10 cm.

Preferably, the length of the main housing 1 in the reusable anorectal applicator according to the embodiment of the present invention is 8 cm. Of course, other values can also be used, and I will not give examples one by one here.

Optionally, a side hole 13 is opened in the upper part of the main housing 1 at 4cm-5.5cm in the reusable anorectal applicator according to the embodiment of the present invention.

Preferably, the side hole 13 is opened 4 cm above the main housing 1 in the reusable anorectal applicator according to the embodiment of the present invention.

Optionally, the diameter of the main housing 1 in the reusable anorectal applicator according to the embodiment of the present invention is less than or equal to 1.2 cm.

Preferably, the diameter of the main housing 1 in the reusable anorectal applicator according to the embodiment of the present invention is 1.2 cm. Of course, other values can also be used, and I will not give examples one by one here.

Optionally, the disposable film sleeve 2 in the reusable anorectal applicator of the embodiment of the present invention has an open end and a closed end. When using, first pull the piston core rod 3 back to the lower position of the side hole 13, Then pass the disposable film cover 2 through the side hole 13 and the administration port 11, leaving the closed end of the disposable film cover 2 at the side hole 13, and finally fold the open end of the disposable film cover 2 and put it on The front end of the main housing 1.

Preferably, the length of the disposable film cover 2 in the reusable anorectal applicator according to the embodiment of the present invention is 10 cm. It should be noted that the length of the disposable film cover 2 in this embodiment can also be other values such as 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10.5 cm, 11 cm, 11.5 cm and 12 cm, which are determined according to the length of the main shell. The length of 1 is selected, and I will not give examples one by one here.

Preferably, the material of the disposable film cover 2 in the reusable anorectal applicator according to the embodiment of the present invention is polyvinyl chloride, nitrile or latex.

It should be noted that in this embodiment, the surface of the disposable film sleeve 2 is smooth, which is beneficial to avoid adhesion of ointments or suppositories and reduce patient discomfort.

Optionally, when using the reusable anorectal applicator according to the embodiment of the present invention, the ointment or suppository is placed into the disposable film sleeve 2 through the administration port 11 .

The specific operation of the reusable anorectal applicator of this embodiment is as follows: first pull the piston core rod 3 back to a position below the side hole 13; then pass the disposable film sleeve 2 through the side hole 13 and through the main shell The front end of the drug delivery port 12, leave the closed end of the disposable film sleeve 2 at the side hole 13; then fold the open end of the disposable film sleeve 2 and put it on the front end of the main housing 1; put an appropriate amount of ointment or Put the suppository into the disposable film sleeve 2; then hold the side hole 13 of the main housing 1 with your index finger and middle finger, fix the end of the piston core rod 3 with your thumb, and then put the main housing 1 covered with the disposable film sleeve 2 Insert the front end into the anus until your fingers are close to the edge of the anus, push the piston core rod 3, and push the medicine into the anus and rectum; finally pull out the main shell 1, discard the disposable film sleeve 2, main shell 1 and piston core rod 3 Save for next time.

Optionally, the front end of the piston core rod 3 in the reusable anorectal applicator of the embodiment of the present invention has a blunt conical shape to match the front end of the main housing 1 .

It should be noted that in this embodiment, the front end of the piston core rod 3 is designed to be blunt conical, and the front end of the main housing 1 is also conical. When the front end of the piston core rod 3 is pushed to the front end of the main housing 1, both sides The shape is suitable for better fit to push out the ointment or suppository.

Optionally, the front end of the piston core rod 3 in the reusable anorectal applicator according to the embodiment of the present invention is provided with an annular groove 31 to enhance the sealing between the main housing 1 and the front end of the piston core rod 3 .

It should be noted that in this embodiment, an annular groove is provided at the front end of the piston core rod 4 (i.e., the end of the cone) to enhance the friction between the main housing and the front end of the piston core rod 3 during the pushing process of the piston core rod. Tightness.

Optionally, the rear end of the piston core rod 3 in the reusable anorectal applicator of the present invention is provided with a baffle 32 to facilitate finger joint fixation during use.

It should be noted that the baffle 32 in this embodiment can be a circular baffle, and of course it can also be a baffle of other shapes, as long as it is convenient for human hands to hold, and is not specifically limited here.

In summary, the reusable anorectal drug dispenser according to the embodiment of the present invention uses a low-cost disposable film cover to cleverly isolate the medicine and the main housing, and the human body and the main housing, thereby realizing the main housing. Reusable; through the side hole design, the disposable film sleeve is fixed. At the same time, the distance between the side holes is cleverly set to match the length of the human anal canal, achieving precise drug push position and avoiding the cost of marking scales. The problem of tissue irritation due to rising and rough scales; and through the shape design of the piston core rod, drug push is maximized and drug waste is avoided. Therefore, compared with traditional drug applicators, the reusable anorectal drug applicator according to the embodiment of the present invention has a simple overall structure, is easy to use, and is more environmentally friendly, efficient and hygienic.

Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A reusable anorectal applicator comprising: the piston comprises a main shell (1), a disposable film sleeve (2) sleeved at the front end of the main shell (1) and a piston core rod (3) arranged at the rear end of the main shell (1);

the main shell (1) is of a cylindrical shape, a drug delivery port (11) is formed in the front end of the main shell (1), and an opening (12) is formed in the rear end of the main shell (1) so that the piston core rod (3) can be pushed back and forth in the main shell (1);

the middle upper part of the main shell (1) is provided with a side hole (13) so as to facilitate sleeving the disposable film sleeve (2).

2. The reusable anorectal applicator according to claim 1, characterized in that the side holes (13) are elongated.

3. The reusable anorectal applicator of claim 2, wherein the side hole (13) has a length of 1.5 cm and the side hole (13) has a width of 1.0 cm.

4. The reusable anorectal applicator according to claim 1, characterized in that the length of the main housing (1) ranges from 8 cm to 10 cm.

5. The reusable anorectal applicator of claim 4, wherein the diameter of the main housing (1) is less than or equal to 1.2 cm.

6. The reusable anorectal applicator of claim 1, wherein the disposable film sleeve (2) has an open end and a closed end, and in use, the plunger rod (3) is pulled back to a position below the side hole (13), then the disposable film sleeve (2) is passed through the side hole (13) and through the administration port (11), and the closed end of the disposable film sleeve (2) is left at the side hole (13), and finally the open end of the disposable film sleeve (2) is folded over and sleeved on the front end of the main housing (1).

7. The reusable anorectal applicator according to claim 6, characterized in that, in use, an ointment or suppository is placed into the disposable film sleeve (2) through the application port (11).

8. The reusable anorectal applicator according to claim 1, characterized in that the front end of the plunger rod (3) is blunt conical to fit the front end of the main housing (1).

9. The reusable anorectal applicator according to claim 8, characterized in that the front end of the plunger rod (3) is provided with an annular groove (31) to enhance the tightness between the main housing (1) and the front end of the plunger rod (3).

10. The reusable anorectal applicator of claim 8, wherein the rear end of the plunger rod (3) is provided with a baffle (32) to facilitate co-fixation of the fingers during use.