CN204337496U - A kind of rectal suppository injection device - Google Patents

Abstract

The utility model relates to a rectal suppository injection device, which relates to a device for rectal administration, which is composed of a suppository chamber, a pushing device and a handle, and the pushing device consists of a sleeve, a pushing rod, a pushing and pulling cylinder, two connecting rods and two fixed shafts Composition, the push device adopted by the new model is a reverse force application device, that is, when the suppository needs to be injected, the force application person needs to pull the handle, so that the force application direction of the force application person fixing the sleeve is opposite to that of pulling the handle, and will not cause The further advancement of the sleeve will cause more pain to the patient, and the air in the sleeve will be exhausted to avoid the formation of a negative pressure zone when the injection device is taken out, thereby avoiding the retraction of the suppository.

Description

A rectal suppository injection device

technical field

The utility model relates to a medical device, in particular to a device for rectal administration.

Background technique

Rectal suppository is a kind of solid medicine used to put directly into the rectum, because its active ingredient melts in the rectum, so that the drug dose contained in the rectal suppository is absorbed by the mucosal wall of the rectum to treat the patient's local or systemic Therefore, it can avoid the inactivation of some specific drugs in the stomach or liver, so its administration tolerance is good, especially suitable for patients who cannot take oral drugs such as continuous vomiting, chronic diseases and gastrointestinal diseases, and have a little immunity Poor children, the elderly and patients who are unable to take care of themselves can also use rectal suppositories to treat some diseases.

At present, in China, rectal suppositories are mainly put in by hand. Most of the existing suppository syringes are simple improvements of ordinary syringes. Generally, the suppository is placed on the top of the syringe, and the syringe barrel is placed in the designated position of the rectum, and the push rod is pushed. Push the suppository away from the syringe and send it into the rectum. In actual use, when the syringe is placed in the designated position of the rectum, since the suppository usually has a fixed capsule, it often requires a lot of force when pushing the push rod. At this time, the syringe barrel will often move further into the rectum under the force of the push rod or the applicator's hand, which will aggravate the pain of the patient. Moreover, in the process of pulling out the syringe, the formation of the rectal negative pressure zone will make the injected drug The suppository in place is shifted to the rectal orifice, which reduces the effect of medication and increases the pain of the patient. At the same time, some patients with poor economic conditions tend to reuse the syringe. The suppository has to pass through the entire syringe during the use of the existing syringe. , Even if it is often disinfected, there is a great hygienic hidden danger.

Invention content:

The purpose of the utility model is to overcome the above-mentioned technical defects, and provide a rectal suppository injection device with a reverse force pushing device, which can prevent the suppository from receding to the rectal mouth, ensure the effect of medication, and greatly reduce the pain of the user.

The utility model is composed of a suppository chamber, a pushing device and a handle. The pushing device is composed of a sleeve, a push rod, a push-pull cylinder, two connecting rods and two fixed shafts, wherein the handle is fixedly connected to the end of the suppository chamber of the push-pull cylinder. The push-pull cylinder can be pushed and pulled by the handle in the sleeve, and the two connecting rods are fixedly connected with the inner wall of the push-pull cylinder, pass through the inner wall of the sleeve, and are slidingly connected with two fixed shafts fixed on the inner wall of the sleeve, and pass through The push rod forms a free end. Along the direction from the inner wall of the sleeve to the free end of the connecting rod, three holes with increasing diameters and depths are arranged on the inner wall of the sleeve and the outer walls on both sides of the push rod respectively. On the inner wall of the sleeve and An elastic rubber pad is arranged between the hole groove at the far free end on the push rod and the connecting rod. The top of the sleeve is open at the center, and the top of the sleeve can be horizontal or in the shape of an inverted truncated cone to accommodate suppositories with different bottom structures.

When in use, the opening of the suppository chamber is facing upwards. First, put the suppository into the suppository chamber from the opening head, and gently pull the handle, so that the gas part in the inner cavity of the sleeve enters the interlayer of the sleeve, thereby facilitating the suppository in the suppository chamber. Then put the injection device into the designated position of the rectum, and then continue to pull the handle, so that the push rod enters the suppository chamber, inject the suppository into the rectum, and then take out the injection device while pushing the handle, so that the air in the cylinder is released from the suppository chamber. Exhaust, to avoid the formation of negative pressure zone, causing the suppository to retreat. Among them, in order to ensure that the handle is pulled excessively for the first time, causing the push rod to enter the suppository chamber in advance, two pull gears and one push gear can be set for the push-pull cylinder on the outer wall of the sleeve.

As can be seen from the above-mentioned technical scheme and application steps of the present invention, the present invention has the following beneficial effects:

1. The pushing device adopted in the new model is a reverse force application device, that is, when the suppository needs to be injected, the force applicator needs to pull the handle, so that the force applied by the force applicator to fix the sleeve is in the opposite direction to that of pulling the handle, and the sleeve will not be damaged. The further advancement of the disease causes deeper pain to the patient.

2. The fixation of the suppository is controlled to a certain extent by the change of gas volume in the sleeve.

3. Utilize the air in the sleeve to be exhausted to avoid the formation of a negative pressure area when the injection device is taken out, thereby avoiding the retreat of the suppository.

In addition, the suppository placement head of the present invention can also be designed into a corresponding shape according to the shape of the suppository to be used, so as to design a targeted suppository injector, for example, it can be designed into a bullet shape, a shuttle shape, etc.

  Description of drawings:

Fig. 1 is a schematic structural view of Embodiment 1 of the present utility model.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is further described. These drawings are simplified schematic diagrams only to schematically illustrate the basic structure of the utility model, so they only show the structure related to the utility model, and can not be interpreted as limitations on the implementation of the utility model.

Example 1

The rectal suppository injection device structure provided by the utility model is shown in Figure 1, comprises suppository storehouse 1, pushing device 2 and handle 3, and pushing device 2 is made of sleeve 20, push rod 22, push-pull cylinder 21, two connecting rods 23 and Composed of two fixed shafts 24, wherein the handle 3 is fixedly connected to the distal suppository chamber 1 end of the push-pull cylinder 21, the push-pull cylinder 21 can be pushed and pulled by the handle 3 in the sleeve 20, and the two connecting rods 23 are connected with the push-pull cylinder. 21 inner wall is fixedly connected, and passes through the inner wall of the sleeve 20, is slidably connected with two fixed shafts 24 fixed on the inner wall of the sleeve, and passes through the push rod 22 to form a free end, along the connecting rod 23 from the inner wall of the sleeve 20 to the free end In the end direction, the inner wall of the sleeve 20 and the outer wall on both sides of the push rod 22 are respectively provided with three holes 220 with increasing apertures and depths, and the holes 220 on the inner wall of the sleeve 20 and the far free end of the push rod 22 are connected An elastic rubber pad is arranged between the rods. The top of the sleeve 20 is horizontal and the center is open.

When in use, the opening of the suppository compartment 1 faces upwards, first put the suppository into the suppository compartment 1 from the opening head, gently pull the handle 3 to fix the suppository in the suppository compartment 1, and then insert the injection device into the designated position of the rectum, Then continue to pull the handle 3, inject the suppository into the rectum, and then take out the injection device while pushing the handle 3, so that the air in the injection device is discharged from the suppository chamber 1, so as to avoid the formation of a negative pressure zone and cause the suppository to retreat.

Claims (3)

1. A rectal suppository injection device, comprising a suppository storehouse, a pusher and a handle, characterized in that the pusher is made up of a sleeve, a pusher rod, a push-pull cylinder, two connecting rods and two fixed shafts, wherein the handle It is fixedly connected to the far end of the suppository chamber of the push-pull cylinder. The push-pull cylinder can be pushed and pulled by the handle in the sleeve. The two connecting rods are fixedly connected with the inner wall of the push-pull cylinder and pass through the inner wall of the sleeve. The fixed shaft on the inner wall of the sleeve is slidably connected, and passes through the push rod to form a free end. Along the direction from the inner wall of the sleeve to the free end of the connecting rod, three apertures and depths are respectively arranged on the inner wall of the sleeve and the outer walls on both sides of the push rod. The enlarged hole is provided with an elastic pad between the inner wall of the sleeve and the hole at the far free end of the push rod and the connecting rod; the top of the sleeve is horizontal and the center is open. 2. A rectal suppository injection device according to claim 1, characterized in that, the top end of the sleeve is in the shape of an inverted truncated cone with an opening in the center. 3. A rectal suppository injection device according to claim 1, characterized in that, the outer wall of the sleeve is provided with two pulling positions and one pushing position of the push-pull barrel.