CN211383401U

CN211383401U - Gynecological drug delivery device

Info

Publication number: CN211383401U
Application number: CN201921422894.8U
Authority: CN
Inventors: 邱昌梅; 李华柱; 王从
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-09-01
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a medical article, in particular to a gynecological drug delivery device, which comprises a sleeve, a piston and a push rod, wherein the front end of the sleeve is closed, and side holes are uniformly distributed on the side wall; a stud is fixed on the front side of the piston; a first fin plate extending forwards and backwards is arranged on the inner side wall of the middle front section of the sleeve, and a second fin plate extending forwards and backwards is arranged on the outer wall of the stud; gel is filled in the front part of the piston in the inner cavity of the sleeve; when the piston is pushed to move forwards until the front end of the stud abuts against the front end of the sleeve, the piston is in contact with the front end of the first fin plate, and the annular cavity between the stud and the sleeve is divided into two parts by the first fin plate and the second fin plate. The gel can be uniformly discharged through the side holes on the periphery of the sleeve, so that the contact area between the gel and the affected part is increased, the distribution of the gel is more uniform, and the gel is more favorable for the direct action of the medicine on the affected part and the quick absorption and utilization of the medicine; the novel medical disposable infusion bag is simple in structure, easy to implement, low in cost, suitable for disposable use and has a remarkable popularization prospect.

Description

Gynecological drug delivery device

Technical Field

The utility model relates to a medical supplies especially relates to a device of dosing for gynaecology's disease treatment.

Background

Clinically, the external medicament is placed in the vagina, is an important treatment means for various gynecological diseases, particularly vaginitis, is convenient to operate, directly acts on an affected part to take effect quickly, is accepted by patients, is the most commonly used gynecological external medicament at present, is gel, and is placed in the vagina of the patients by means of a medicament delivery device when in use. Due to the dual limitations of unreasonable structure and physiological characteristics of the affected part of the existing drug delivery device, the gel cannot be uniformly distributed on the vaginal wall when being placed in the vagina of a patient, but keeps a globose shape for a long time, has extremely limited contact area with the affected part, and cannot be quickly dissolved and absorbed. Meanwhile, the medicine is mostly applied to the patient during the sleep period, the body is in a static state, and the gel is dissolved and then is only distributed on one side of the vagina, so that the gel cannot be fully contacted with the affected part, and the treatment effect of gynecological diseases is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem, the utility model provides a can show increase medicament and affected part area of contact, improve medicament absorption efficiency, improve treatment's gynaecology's device of dosing.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a gynaecology's device of dosing, its includes a sleeve pipe, and the intraductal piston that is equipped with sealed complex of cover, piston rear side are connected with push rod, its characterized in that: the front end of the sleeve is closed, and a plurality of side holes are uniformly distributed on the side wall of the middle front section; a cylindrical stud coaxial with the piston is fixed on the front side of the piston, and an annular cavity is formed between the outer wall of the stud and the inner wall of the sleeve; the inner side wall of the front section in the sleeve is provided with a first fin plate which extends forwards and backwards, and the inner side end of the first fin plate is contacted with the outer wall of the stud; the front side part of the piston in the inner cavity of the sleeve is filled with gel, and the outer side of the sleeve is wrapped with a plastic film for covering the side hole; when the piston is pushed to move forwards until the front end of the stud abuts against the front end of the sleeve, the piston is in contact with the front end of the first fin plate, and the annular cavity between the stud and the sleeve is divided into two parts by the first fin plate and the second fin plate.

A non-return clamping hole is formed in the circle center of the inner wall of the front end of the sleeve, and a clamping jaw is arranged at the front end of the stud; when the front end of the stud is in abutting contact with the front end of the sleeve, the clamping jaw is just inserted into the non-return clamping hole, and then the clamping jaw and the non-return clamping hole can only rotate relatively.

The rear end of the push rod is provided with a handle, and the tail end of the sleeve is provided with a finger handle.

The push rod, the stud and the second fin plate are integrally formed, and the stud is hollow; the piston is annular, and the rear end part of the stud is sleeved with the piston and is fixedly connected with the piston in a sealing way.

When the gynecological drug delivery device is used, the plastic film outside the sleeve is torn off, the gynecological drug delivery device is placed in the vagina, the push rod is pushed forwards, the piston and the plunger move forwards, the gel in the sleeve is pressed and discharged from the side hole and uniformly spread on the peripheral side wall of the vagina, the gel is reserved in the annular cavity after the plunger abuts against the front end of the sleeve, the push rod is rotated in different directions to drive the second fin plate to rotate, and the gel reserved in the annular cavity can be discharged through the side hole by means of the second fin plate and the first fin plate; finally, the cannula is slightly rotated to further uniformly contact the discharged gel with the affected part, thereby completing the whole administration operation.

Compared with the prior art, the utility model, following technological effect has:

the gel is discharged through the side holes on the periphery of the sleeve, and the gel can be discharged from all the side holes in the whole process of pushing the piston, so that the contact area between the gel and the affected part is increased, the distribution of the gel is more uniform, and the gel is more favorable for the medicine to directly act on the affected part and be quickly absorbed and utilized; simultaneously, because the side opening discharge of gel through a plurality of equipartitions, discharged gel is the flocculus, compares the reunion in the past and does benefit to more and dissolve, and then has improved medicine absorption efficiency. The utility model discloses simple structure, easy to carry out, low cost is fit for disposable, can improve the area of contact in medicine and affected part to improve medicine absorption efficiency, and then have apparent popularization prospect.

Drawings

Fig. 1 is a schematic structural diagram of a gynecological drug delivery device before use.

Fig. 2 is a schematic structural diagram of the gynecological drug delivery device in use.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is a schematic view of a matching structure of the non-return clamp hole and the clamping jaw.

In the figure, 1, a non-return clamp hole, 101, an inner hole, 102, an outer hole, 103, a limiting step, 2, a side hole, 3, a first fin plate, 4, a clamping jaw, 401, a barb, 5, a plastic film, 6, a sleeve, 7, a stud, 8, a second fin plate, 9, an annular cavity, 10, a piston, 11, a finger handle, 12, a push rod, 13 and a handle.

Detailed Description

Referring to fig. 1-3, the gynecological drug delivery device of the present invention comprises a sleeve 6, a piston 10, a push rod 12 and a stud 7; the sleeve 6 is hollow and closed at the front end, a plurality of side holes 2 for communicating the inner cavity with the outside are uniformly distributed on the side wall of the front section, and an ear-shaped finger handle 11 is arranged at the rear end of the sleeve 6; the piston 10 is positioned in the sleeve 6 and is in sliding seal fit with the sleeve, the push rod 12 is connected to the rear side of the piston 10 and is used for driving the piston 10 to move, and the rear end of the push rod 12 is provided with a handle 13 convenient for holding and pressing; the stud 7 is cylindrical and is fixed on the front side of the piston 10, the stud 7 and the piston 10 are coaxial, namely the central axes are superposed, and an annular cavity 9 is formed between the outer wall of the stud 7 and the inner wall of the sleeve 6; the inner side wall of the front section in the sleeve 6 is provided with a first fin plate 3 which extends forwards and backwards, and the inner side end of the first fin plate is contacted with the outer wall of a stud 7, and the outer wall of the stud 7 is provided with a second fin plate 8 which extends forwards and backwards, and the outer side end of the second fin plate is contacted with the inner wall of the sleeve 6; the front part of the piston 10 in the inner cavity of the sleeve 6 is filled with gel, the outer side of the sleeve 6 is wrapped with a plastic film 5 which covers the side hole 2, and the plastic film 5 can prevent the gel from leaking to the outside through the side hole 2 before use; when the piston 10 is pushed to move forward until the front end of the stud 7 abuts against the front end of the sleeve 6, the piston 10 contacts with the front end of the first fin plate 3, and at the moment, the first fin plate 3 and the second fin plate 8 divide the annular cavity 9 between the stud 7 and the sleeve 6 into two separated parts.

Referring to fig. 1-3, when the gynecological drug delivery device adopts the above structural design, during the drug delivery operation, the plastic film 5 outside the sleeve 6 is torn off, the inner cavity of the sleeve 6 is communicated with the outside, the gynecological drug delivery device is placed into the vagina, the push rod 12 is pushed forward, the piston 10 and the plunger 7 move forward, the gel in the sleeve 6 is pressed and discharged from the side hole 2, the gel is uniformly spread on the peripheral side wall of the vagina, the push rod 12 cannot be pushed forward after the front end of the plunger 7 and the sleeve 6 are abutted, at this time, only the gel is left in the annular cavity 9 and is separated into two parts by the first fin plate 3 and the second fin plate 8, the push rod 12 is rotated in one direction, the push rod 12 drives the second fin plate 8 to rotate until the second fin plate 8 and the first fin plate 3 are abutted, a part of the gel in the annular cavity 9 can be discharged through the side hole 2, and then the push rod 12 is rotated in the other direction, the other part of the gel in the annular cavity 9 can be discharged through the side hole 2, so that the gel is completely discharged; finally, the cannula 6 is slightly rotated to further uniformly contact the discharged gel with the affected part, thereby completing the whole administration operation.

Furthermore, as shown in fig. 2, 3 and 4, when the gynecological drug delivery device is used, in order to discharge the gel in the annular cavity 9, the plunger 7 needs to be driven by the push rod 12 to rotate, and the piston 10 should be prevented from moving backwards during the rotation process, so as to prevent a gap from being formed between the sleeve 6 and the front end of the plunger 7, and if the gap is formed, the two parts of the annular cavity 9 separated by the first fin 3 and the second fin 8 will be communicated, and the technical purpose of discharging the gel in the annular cavity 9 cannot be achieved by using the manner of the rotary plunger 7. In order to avoid backward movement of the piston 10 in the rotation process, a non-return clamping hole 1 is formed in the center of the inner wall of the front end of the sleeve 6, and a clamping jaw 4 is arranged at the front end of the stud 7; when the front end of the stud 7 is in abutting contact with the front end of the sleeve 6, the jaw 4 is just inserted into the non-return clamping hole 1, and then the jaw 4 and the non-return clamping hole 1 can only rotate relatively, so that the piston 10 can be prevented from moving backwards in the rotating process; the non-return clamping hole 1 and the clamping jaw 4 can be implemented by adopting the prior art, for example, the non-return clamping hole 1 can be formed by an outer hole 102 formed on the surface of the inner wall of the front end of the sleeve 6 and an inner hole 101 formed in the front end of the sleeve 6, and the inner hole 101 has a larger diameter than the outer hole 102 so that the inner hole and the outer hole form a limiting step 103; the claw 4 is composed of two elastically deformable barbs 401, and after the two barbs 401 are inserted into the inner hole 101, the barbs are limited by the limit step 103 and cannot be drawn out, but the barbs 401 can rotate in the inner hole 101.

Furthermore, as shown in fig. 2, in order to ensure that the structure of the gynecological drug delivery device is more convenient to process, the cost is lower, and the gynecological drug delivery device is more suitable for disposable use. The push rod 12, the stud 7 and the second fin 8 are integrally formed, and the stud 7 is hollow; the piston 10 is annular, and the rear end part of the stud 7 is sleeved with the piston and is fixedly connected with the piston in a sealing way.

Claims

1. The utility model provides a gynaecology's device of dosing, its includes a sleeve pipe, and the intraductal piston that is equipped with sealed complex of cover, piston rear side are connected with push rod, its characterized in that: the front end of the sleeve is closed, and a plurality of side holes are uniformly distributed on the side wall of the middle front section; a cylindrical stud coaxial with the piston is fixed on the front side of the piston, and an annular cavity is formed between the outer wall of the stud and the inner wall of the sleeve; the inner side wall of the front section in the sleeve is provided with a first fin plate which extends forwards and backwards, and the inner side end of the first fin plate is contacted with the outer wall of the stud; the front side part of the piston in the inner cavity of the sleeve is filled with gel, and the outer side of the sleeve is wrapped with a plastic film for covering the side hole; when the piston is pushed to move forwards until the front end of the stud abuts against the front end of the sleeve, the piston is in contact with the front end of the first fin plate, and the annular cavity between the stud and the sleeve is divided into two parts by the first fin plate and the second fin plate.

2. The gynecological delivery device of claim 1, wherein: the rear end of the push rod is provided with a handle, and the tail end of the sleeve is provided with a finger handle.

3. The gynecological delivery device of claim 1, wherein: the push rod, the stud and the second fin plate are integrally formed, and the stud is hollow; the piston is annular, and the rear end part of the stud is sleeved with the piston and is fixedly connected with the piston in a sealing way.

4. The gynecological delivery device of claim 1, wherein: a non-return clamping hole is formed in the circle center of the inner wall of the front end of the sleeve, and a clamping jaw is arranged at the front end of the stud; when the front end of the stud is in abutting contact with the front end of the sleeve, the clamping jaw is just inserted into the non-return clamping hole, and then the clamping jaw and the non-return clamping hole can only rotate relatively.

5. The gynecological delivery device of claim 4, wherein: the clamping stop hole is composed of an outer hole formed in the surface of the inner wall of the front end of the sleeve and an inner hole formed in the front end of the sleeve, and the inner hole is larger than the outer hole in diameter so that a limiting step is formed between the inner hole and the outer hole; the clamping jaw is composed of two elastically deformable barbs, and after the two barbs are inserted into the inner hole, the two barbs are limited by the limiting step and cannot be drawn out, but the barbs can rotate in the inner hole.