CN210844923U - Safe injector for administration of genital tract - Google Patents

Abstract

The utility model discloses a genital tract is dosed and is used safe injector, including outer barrel, interior push rod, protective sheath and stirring rod, outer barrel is both ends open-ended cavity lumen, one end is for dosing the mouth, the other end penetrates interior push rod, outer barrel divide into smoothly stretches into portion and dull polish portion of gripping, dull polish portion of gripping is close to smoothly stretches into one side and is equipped with the external screw thread, interior push rod and the movable sealing of outer barrel inner wall, it holds the chamber to form the medicine, it says to be equipped with the inner chamber that holds the stirring rod on the interior push rod, protective sheath one end opening is equipped with the internal thread at the opening edge, the protective sheath embolias from dosing the mouth, it can dismantle fixedly to pass the external screw thread that smoothly stretches into portion and grip the portion through internal. The safety injector provided by the utility model is provided with the protective sleeve which is sleeved on the smooth extending part and fixed on the frosted holding part, so as to protect the smooth extending part from being polluted by microbes such as bacteria and the like, and improve the use safety; in addition, the push rod is prevented from sliding in the transportation process under the action of external force of the screw thread, so that the medicinal powder is leaked.

Description

Safe injector for administration of genital tract

Technical Field

The utility model relates to a disposable medical appliances field especially relates to a genital tract is dosed and is used safe injector.

Background

Genital tract administration is currently a common route of administration in clinical practice due to its ease of handling, non-injurious, and local and systemic therapeutic effects. The genital tract administration system is that the medicine is placed in vagina or cervix, absorbed by genital tract mucous membrane and enters local or systemic blood circulation, and is used for sterilization, disinfection, contraception, induced labor, abortion, cancer treatment and the like. The dosage form mainly comprises pessary, membrane agent, cream, tablet, solution agent, gel agent, capsule and the like, and the administration is generally carried out by adopting a cylindrical injector at present, for example, patent CN200610027838.5 discloses a vaginal administration injector which comprises a coat with a drug injection hole at the head and a push rod which can be inserted into the coat and slide along the inner wall of the coat, the drug is injected from the drug injection hole by a drug tube, the drug injection hole at the head is an internal thread hole matched with a thread opening of the drug tube and is positioned between the inner surface and the outer surface of the head, although the drug can be injected to the focus, the following problems exist: 1. before administration, the medicine in the medicine tube needs to be poured from the head medicine injection hole, the operation is very inconvenient, and the push rod can slide forwards or backwards due to the fact that the outer wall of the front end of the outer sleeve is smooth and the opening is the medicine injection hole and cannot be effectively sealed; 2. the outer cylinder is exposed outside and is easy to be polluted during the medicine charging operation, so that the adverse effects such as inflammation and the like are easily caused by direct contact with the vagina during the medicine feeding operation; 3. because liquid gels have poor stability and are not easy to store, the powder and the solution need to be stirred uniformly before use and then are immediately administrated. In addition, the sealing performance of the existing push rod is poor, the liquid medicine leakage phenomenon can occur, but the friction between the head of the push rod and the inner wall of the outer barrel body is too large, so that the push rod is difficult to dose, and the problem that the sealing performance and the practicability are difficult to take into account is solved. It is therefore desirable to design a safe syringe for administration to the genital tract.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a genital tract is given medicine and is used safe injection ware has solved current injection ware and has given medicine and easily receive microbial contamination and the problem that interior push rod easily slided forward and lead to solid medicine to leak.

The utility model provides a genital tract is dosed and is used safe injector, including outer barrel, interior push rod, protective sheath and stirring rod, outer barrel is both ends open-ended cavity lumen, one end is for dosing the mouth, the other end penetrates interior push rod, outer barrel divide into smoothly stretches into portion and dull polish portion of gripping, dull polish portion of gripping is close to smoothly stretches into one side and is equipped with the external screw thread, interior push rod is movable sealed at outer barrel inner wall, it holds the chamber to form the medicine, interior push rod one end is equipped with the inner chamber that holds the stirring rod and says, protective sheath one end opening is equipped with the internal thread at the opening edge, the protective sheath embolias from dosing the mouth, it can dismantle fixedly to pass the external screw thread that smoothly stretches into portion and grip the portion through internal thread.

Preferably, the inner push rod consists of a rod body and a rubber piston, wherein one end of the rod body is provided with a raised head, and the raised head and the rubber piston are fixed in an interference fit manner.

Preferably, one end of the rod body, which is far away from the raised head, is a limiting step, and the diameter of the limiting step is larger than the inner diameter of the outer barrel.

Preferably, the stirring rod is fixed on the end face of the rod body through an annular buckle.

Preferably, the outer barrel is 11cm long, 10mm in outer diameter and 9mm in inner diameter.

Preferably, the rubber piston is a cylindrical plug body, the head of the cylindrical plug body is arc-shaped, and a first sealing ring, a second sealing ring and a third sealing ring are arranged on the side surface of the cylindrical plug body.

Preferably, the nose is provided with a semicircular enlarged head.

In conclusion, adopt the utility model provides a safe injector for administration of genital tract has following advantage:

1. the inner push rod and the outer cylinder body are matched to form a mixed cavity for containing medicinal powder, gel liquid medicine can be injected to a cervical or vaginal focus, and the protective sleeve is arranged to sleeve the smooth extending part and fixed on the frosted holding part, so that the extending part is protected from being polluted by bacteria and other microorganisms, and the use safety is improved; on the other hand, the push rod is prevented from sliding forwards under the action of external force of the screw thread, so that the powder is prevented from leaking outwards.

2. The rod body is provided with a limiting step which can prevent the inner push rod from excessively extending out of the outer barrel body and just send the medicine out of the outer barrel body to fall on a focus;

3. rubber piston and plush copper interference fit, and need not lead to the too big inconvenient promotion of frictional force with the inner wall laminating completely at rubber piston, but set up triple linear sealing and ensure that there is not the seepage when medicine solid-liquid mixes, but mobile injection in addition is given to a certain position, compromises sealed and practicality.

Drawings

Fig. 1 is a schematic structural view of a safe injector for administration of a drug through a genital tract of the present invention;

fig. 2 is a schematic structural view of the outer cylinder 1 in fig. 1;

FIG. 3 is a schematic structural view of the inner push rod 2 in FIG. 1;

fig. 4 is a schematic structural view of the protective sheath 3 in fig. 1;

fig. 5 is a cross-sectional schematic view of the interference fit of the nose and rubber piston of fig. 3.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The first embodiment is as follows: referring to fig. 1-5, a safe injector for administration of genital tract comprises an outer cylinder 1, an inner push rod 2, a protective sleeve 3 and a stirring rod 4, wherein the outer cylinder 1 is a hollow long tube, one end opening is used for penetrating the inner push rod 2, the other end is an administration port 15, the end face of the administration port 15 is passivated, the outer cylinder 1 is 3/4 stretching parts 11 and 1/4 holding parts 12, the outer wall of the stretching part 11 is smooth, the holding parts 12 are provided with external threads 14 near one end of the stretching part 11, one end of the stretching part 11 is provided with frosted stripes, friction force is increased, and operation is facilitated. The outer cylinder body 1 is 11cm long, 10mm in outer diameter and 9mm in inner diameter, is suitable for vagina and cervix structures, and can push medicines to focus.

The inner push rod 2 consists of a rod body 23 and a rubber piston 22, one end of the rod body 23 is provided with a raised head 21, the raised head 21 and the rubber piston 22 are assembled in an interference fit manner, so that the rubber piston 22 and the inner wall of the outer cylinder body 1 form a sealed accommodating cavity 13 for accommodating and mixing medicinal powder, and the inner push rod 2 moves in the outer cylinder body 1 under the driving of the rod body 23; the body of rod 23 other end is spacing step 25, and spacing step 25 external diameter is greater than outer barrel 1 external diameter, and barrel 1 outside can not breaking away from pushing the medicine in pushing, is equipped with the inner chamber way 24 that holds stirring rod 4 in the body of rod 23, and stirring rod 4 passes through annular buckle 41 to be fixed on the body of rod 23 terminal surface.

One end of the protective sleeve 3 is opened, an internal thread 31 is arranged at the opening, the protective sleeve is sleeved in from the medicine feeding port 15, penetrates through the extending part 11 and is matched and fixed with the external thread 14 of the holding part 12 through the internal thread 31, and therefore the problems that the extending part 11 is polluted by bacteria and other microorganisms, and further vaginitis and the like are caused can be prevented; on the other hand, the function of the existing limiting block is replaced, and the push rod is prevented from sliding forwards in the transportation process so that the medicinal powder is prevented from leaking outwards.

The work flow of the safe injector for genital tract administration in the embodiment comprises 1 part of explosive charge: firstly, an inner push rod raised head and a rubber piston are matched and fixed and penetrate into an outer barrel body for injection, then fixed powder with a fixed amount is loaded from an administration port, the inner push rod is pushed to a proper position (about 1/4), so that a containing cavity is just filled with the fixed powder, a protective cover is sleeved and fixed on the outer barrel body, and the inner push rod and the inner wall of the outer barrel body are movably sealed, and the air in the containing cavity is less at the moment, so that the inner push rod cannot move forwards or backwards freely; 2. Administration: the protective cover is rotationally disassembled, the inner push rod is pulled downwards to about 1/2 parts of the outer barrel body, a certain amount of prepared bagged liquid is directly poured into the containing cavity, the stirring rod is taken down and placed into the containing cavity to be uniformly stirred into gel, then the outer barrel body is directly stretched into the position of the vaginal lesion, the inner push rod is utilized to slowly push upwards until the highest position is reached, and then the outer barrel body with the inner push rod is pushed out to finish the administration.

Example two: referring to fig. 5, the difference between the second embodiment and the first embodiment is that the rubber piston 22 is a cylindrical plug 221, and the head of the cylindrical plug 221 is arc-shaped, so as to facilitate the complete delivery of the medicine; the first sealing ring 222, the second sealing ring 223 and the third sealing ring 224 are arranged on the side face of the cylindrical plug body 221, so that the pushing is not inconvenient due to overlarge friction force caused by complete attachment with the inner wall, and no leakage is caused during solid-liquid mixing of the medicine through triple linear sealing; the nose 21 is provided with a semicircular enlarged head 211 to increase the contact area with the cylindrical stopper body 221, thereby preventing the nose 21 from falling out of the rubber piston 22.

In summary, the safe injector for administration of genital tract provided by the utility model is provided with the inner push rod and the outer cylinder body which are matched to form a mixed cavity for containing the medicinal powder, and can inject the gel liquid medicine to the vaginal focus, and the protective sleeve which is sleeved on the smooth stretching part and fixed on the frosted holding part is arranged, on one hand, the stretching part is protected to prevent the stretching part from being polluted by bacteria, and the use safety is improved; on the other hand, the push rod is prevented from sliding forwards under the action of external force of the screw thread, so that the powder is prevented from leaking outwards.

Furthermore, the raised head and the rubber piston are in interference fit, and the rubber piston is provided with triple linear sealing, so that no leakage is caused when solid and liquid of the medicine are mixed, the medicine can be movably injected to a certain position for administration, and sealing and practicability are both considered.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a genital tract is dosed and is used safe injection ware, including outer barrel, interior push rod, protective sheath and stirring rod, a serial communication port, outer barrel is both ends open-ended cavity lumen, one end is for dosing the mouth, the other end penetrates interior push rod, outer barrel divide into smoothly stretches into portion and dull polish portion of gripping, dull polish portion of gripping is close to smoothly stretches into one side and is equipped with the external screw thread, interior push rod and outer barrel inner wall are movable sealed, it holds the chamber to form the medicine, interior push rod one end is equipped with the inner chamber that holds the stirring rod and says, protective sheath one end opening is equipped with the internal thread near the opening part, the protective sheath embolias from dosing the mouth, it can dismantle fixedly to pass the external screw thread that smoothly stretches into portion.

2. A safety syringe for genital tract administration according to claim 1, wherein the smooth protrusion is 3 times the length of the frosted grip.

3. The safe syringe for genital tract administration according to claim 1, wherein the inner push rod comprises a rod body and a rubber piston, one end of the rod body is provided with a raised head, and the raised head and the rubber piston are fixed in an interference fit manner.

4. The safe syringe for genital tract administration according to claim 3, wherein the end of the rod body far away from the raised head is a limiting step, and the diameter of the limiting step is larger than that of the outer cylinder body.

5. A safe syringe for genital tract administration according to claim 3, wherein the stirring rod is fixed on the end surface of the rod body by a ring-shaped buckle.

6. A safe syringe for genital tract administration according to claim 3, wherein the outer barrel has a length of 11cm, an outer diameter of 10mm and an inner diameter of 9 mm.

7. The safe syringe for genital tract administration according to claim 3, wherein the rubber piston is a cylindrical plug body, the head of the cylindrical plug body is arc-shaped, and the side surface of the cylindrical plug body is provided with a first sealing ring, a second sealing ring and a third sealing ring.

8. A safe syringe for genital tract administration as claimed in claim 3, wherein the projection is provided with a semicircular enlarged head.

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