JPS636226B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaginal insert, and an object of the present invention is to provide an improved vaginal insert for inserting contraceptive jewelry, medicines, ointments, and the like.

The medicament used by the device of the invention is of the type that inserts the medicament or ointment into a body cavity, such as the vagina, in a clean and sterile manner. The device of the present invention is particularly useful when injecting a fixed amount of a drug such as those described above into a body cavity to improve conditions prescribed by the drug. Such devices are designed to be easily disassembled for cleaning after use. In this way, the instrument can be used many times before it is finally discarded; the ease of cleaning the instrument reduces the possibility of contamination upon reuse. Conventional instruments in this field are designed to allow repeated use of the inserter, but if proper cleaning procedures are not taken during reuse, they may recontaminate the body cavity area or There was a risk of making things even worse. Prior art devices often consisted of several different parts that had to be disassembled before cleaning. Existing conventional inserts have either a separate button that loosens for disassembly, or a snap that locks in place when the barrel is filled. To disassemble the inserter, push the plunger past the stop. Residues often contained within some parts of the syringe are difficult to remove with normal cleaning procedures, leaving deposits in the instrument that can become a source of contamination upon reuse. Become.

The device of the present invention is simple in design and operation, and can be easily used by the patient or physician. Furthermore, the two parts that make up the device of the present invention can be constructed from hygienic materials, can be easily assembled and disassembled, are easy to clean, and are safe even when in contact with delicate body tissues. be.

It is an object of the present invention to provide an injector that can successfully, quickly and conveniently inject pharmaceutical compositions into body cavities.

Another object of the invention is to provide a syringe of simple and inexpensive construction that can be easily disassembled and reassembled for easy cleaning and reuse.

One of the important objects of the present invention is to provide a syringe that is not bulky and convenient to carry.

The above and other objects of the present invention will be apparent from the following description with reference to the accompanying drawings.

According to the present invention, there is provided a cylindrical member having openings at both ends of the distal end located in the direction of the forward end of the piston rod and the proximal end located in the opposite direction, and a cylindrical member positioned so as to be slidable in the cylindrical member. a piston rod having a threaded lip at its forward end, a hollow bore in the tubular member defining a medicinal chamber, and a threaded lip in the piston rod; A vaginal insert is provided having internal threads at the proximal end of the tubular member adapted to receive the end.

Referring to the accompanying drawings in detail, the vaginal insertion device of the present invention comprises a cylindrical member 10 and a piston rod 11.

The tubular member 10 is preferably cylindrical in shape;
It includes a hollow hole 15 along its entire length that serves as a medicine chamber. The tubular member 10, which has openings at both ends, a distal end toward the forward end of the piston rod 11 and a proximal end opposite thereto, also has an internal thread 13 near the proximal end. The inner thread 13 is connected to the piston rod 1 when using this insert.
1 act as a stop.

The piston rod 11 has a diameter slightly smaller than the inner diameter of the tubular member 10 and is inserted into the tubular member 10 through an opening 16 near the proximal end and is inserted into the barrel while its contents are released through the distal end opening 15. It is designed so that it can be slid inside. The piston rod 11 has a threaded lip at its forward end, such as an outer threaded loop 12, adapted to receive an inner threaded loop 13 on the tubular member 10 by a threaded fit. . The piston rod 11 is assembled by first engaging the outer threaded loop 12 with the inner threaded loop 13 and passing the piston rod assembly 11 into the medicine chamber. The piston rod 11 is equipped with a knob 14, and when pushing out the medicine, the rod 1
1 can be easily put under pressure. The knob 14 also allows the piston rod 11 to be connected to the cylindrical member 1 during operation.
It acts to prevent slipping inside the 0. The length of the piston rod 11 minus the knob 14 is slightly shorter than the entire length of the cylindrical member 10.

In actual use, the piston rod is pushed into the tubular member to the position shown in Figure 1 and pressure is applied to the tube containing the medicinal product, or by means of a suitable pressurizing device, such as an aerosol canister. Pressure is applied to fill the device with medicine or ointment. If the insert is to be filled from a tube, it is convenient to provide the distal end of the tubular member 10 with internal threads to receive the nozzle of the tube. This prevents the drug from being consumed unnecessarily. A pressurized canister can be used to inject a quantity of medication into the insert. To facilitate accurately determining the amount to be injected, the tubular member 10 is also provided with a series of graduations along its length to indicate the amount of drug contained in the chamber. Can be done. Once the tubular member is filled, the contents are released by inserting the device into the body cavity and gently pushing the piston rod 11 in the direction of the bore 15 until all the material is released. Can be done.

To clean the instrument, the piston rod 11 is disassembled from the tubular member 10 by rotating it through the inner threaded loop 13. Cleaning procedures can be carried out in the usual manner, such as washing with soap and water.

The vaginal insert of the present invention can be made from known synthetic resins or thermoplastic materials. The particular material used must be compatible with the jewelry, ointment or cream used, and the body tissues.
Among the elastic and relatively stiff synthetic resins or thermoplastic materials that may be molded or otherwise made into the piston rod assemblies and tubular members of the present invention are ethylcellulose, cellulose acetate, polyethylene, polystyrene, and vinyl chloride. -Vinyl acetate copolymers, vinyl chloride resins, polypropylene, polyvinyl chloride, etc.

Although a novel two-part inserter has been described herein that achieves all of the foregoing objectives and benefits, there are many variations, variations, modifications, and other uses of the device of the present invention. The method and application will become apparent to those skilled in the art upon reference to the present specification and accompanying drawings that illustrate preferred embodiments of the invention. It is therefore intended that the invention be covered by the appended claims, all such modifications, alterations, modifications, uses and applications that do not depart from the spirit and scope of the invention.

[Brief explanation of the drawing]

Figure 1 is a sketch of the insertion tool of the present invention, Figure 2 is a sketch of the parts of the insertion tool, and Figure 3 is 3-3 in Figure 1.
FIG. 4 is a cross-sectional view of the parts of the insert in a pre-assembled state. Fifth
Figure 6 is a cross-sectional view of the inserter taken along line 5--5 in Figure 4; Figure 6 is a cross-sectional view taken along line 6-6 in Figure 4; Figure 7 is a cross-sectional view of the inserter in the closed position. FIG.

Claims (1)

[Scope of Claims] 1. A cylindrical member having openings at both ends of the distal end located in the direction of the forward end of the piston rod and the proximal end located in the opposite direction, and a cylindrical member positioned so as to be able to slide into the cylindrical member. the piston rod having a threaded lip at its forward end, the hollow bore of the tubular member defining a drug chamber, and A vaginal insert comprising an internal thread at the proximal end of the tubular member adapted to receive an end of the tubular member. 2. A vaginal insert according to claim 1, wherein the tubular member further has internal threads at its distal end. 3. The vaginal insert of claim 1, wherein the tubular member and piston rod are made of hard molded plastic.