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CN-122006089-A - Push away wall type membrane turnover medicine feeder

CN122006089ACN 122006089 ACN122006089 ACN 122006089ACN-122006089-A

Abstract

The invention relates to the technical field of medical equipment, in particular to a push-wall type membrane-turning drug feeder which comprises a membrane blind pipe and an opening pipe, wherein the closed end of the membrane blind pipe extends into the opening pipe, the opening end of the membrane blind pipe is connected with a resisting piece, the resisting piece is connected with or contacted with the opening pipe, and at least in an initial state, the upper end of the opening pipe is far away from the closed end. The invention has simple structure and smaller mass, is beneficial to reducing or avoiding pollution after medication, has flexible use mode, can obviously improve the applicability and comfort of vaginal administration, and is especially suitable for the situation that the vagina is dry and the lubricant is not suitable for administration.

Inventors

  • CHEN WEI
  • WEI YAO
  • SHEN HUANJUN
  • ZHOU JIEJING
  • REN LIANGLIANG
  • JIN NI
  • YANG XIAOFEI
  • SHAO JIANWEN
  • WANG XIAOYAN
  • ZHANG RONGRONG

Assignees

  • 西安绿动环保科技有限公司

Dates

Publication Date
20260512
Application Date
20260323
Priority Date
20260311

Claims (10)

  1. 1. A push-wall type membrane-turning drug feeder is characterized by comprising a membrane blind pipe (10) and an opening pipe (20), wherein a closed end (13) of the membrane blind pipe (10) stretches into the opening pipe (20), a resisting piece (14) is connected to the opening end of the membrane blind pipe (10), the resisting piece (14) is connected with or contacted with the opening pipe (20), and the upper end of the opening pipe (20) is far away from the closed end (13) at least in an initial state.
  2. 2. The push wall type membrane turnover applicator of claim 1 in which the upper outer diameter of the opening tube (20) is larger than the outer diameters of the middle and lower parts or the upper outer diameter of the opening tube (20) is smaller than the outer diameters of the middle and lower parts.
  3. 3. Push wall type film turning applicator according to claim 1, characterized in that the closed end (13) is connected with a pull member.
  4. 4. Push wall type film turning applicator according to claim 1, characterized in that the abutment (14) is provided with a gap (141).
  5. 5. Push wall type film turning drug delivery device according to any of claims 1 to 4, characterized in that the upper end of the opening tube (20) is provided with an inward protruding blunt port (2), and the closed end (13) is connected with a hook hanging piece (15).
  6. 6. Push wall flip top applicator according to any of claims 1 to 4, characterized in that a piston assembly (72) is slidably and sealingly fitted in the opening tube (20), or that a connecting tube (51) is connected to the lower or side of the opening tube (20) and/or an inflatable member is connected.
  7. 7. The wall-pushing type membrane-turning drug delivery device as claimed in claim 6, wherein the inner wall of the opening tube (20) is connected with a flow guide member (30), or the inner diameter of the connecting tube (51) far away from the opening tube (20) is smaller, or the inner diameter of the connecting tube (51) is larger than the inner diameter of the air outlet of the air charging member.
  8. 8. The push wall type membrane turnover drug delivery device as claimed in claim 7 is characterized in that the inner wall of the opening tube (20) and/or the outer wall of the flow guide piece (30) is provided with a ventilation groove (22).
  9. 9. Push wall type membrane-turning applicator according to any of claims 1 to 4, characterized in that the outer wall surface of the membrane blind tube (10) is provided with ribs (111) for supporting the formation of ventilation gaps.
  10. 10. The push wall type membrane turnover medicine feeder of claim 3 in which the lower end of the pull piece is connected with a sealing plug (60), the sealing plug (60) is connected with a joint (61), and the sealing plug (60) is detachably and hermetically connected with the lower end opening of the opening tube (20).

Description

Push away wall type membrane turnover medicine feeder Technical Field The invention relates to the technical field of medical instruments, in particular to a push wall type membrane-turning drug feeder. Background Vaginal administration is a topical administration mode in which pharmaceutical preparations (e.g., suppositories, gels, tablets, creams, etc.) are directly placed into the vaginal tract, allowing the drug to be absorbed locally in the vagina or through the mucosa to exert a therapeutic effect. The vaginal administration is mainly used for treating diseases related to vagina and cervix, has the characteristics of high local drug concentration and less systemic adverse reaction, and usually uses auxiliary administration tools to avoid infection in the administration process. At present, a plunger type drug delivery device is commonly used, wherein the front end of the device is aligned with the vaginal orifice during drug delivery, and after a flat pushing drug delivery tube slides in vagina to reach a certain position, a push rod is pushed forward to extrude drug liquid for drug delivery. The drug delivery device is in the process of entering and exiting the vagina, the outer wall of the drug delivery tube can be in sliding friction with the inner wall of the vagina, secondary damage to the inner wall of the vagina is easy to cause, especially, the situation that the vagina is dry and astringent is caused, and the lubricant is unsuitable to use can cause mucous membrane damage and aggravate discomfort, the drug effect can be reduced, and the implementation of the drug delivery treatment in the vagina is seriously influenced. The application discloses a vagina administration device and a vagina administration method, which are disclosed in Chinese patent publication No. CN111888633B, wherein the vagina administration device comprises a flexible pipe sleeve, the flexible pipe sleeve comprises a pipe body, and pipe bottoms and pipe orifices which are positioned at two ends of the pipe body, the pipe body comprises an inner wall and an outer wall, the inner wall and the pipe bottoms surround to form a containing space for containing medicines, the flexible pipe sleeve is used for everting the inner wall into the vagina so that the medicines in the containing space enter the vagina to enable the medicines in the containing space to uniformly enter the vagina, and the flexible pipe sleeve is used for placing the medicines in the containing space in the flexible pipe sleeve, so that the medicines in the containing space are uniformly coated in the vagina only by pushing the pipe bottoms in a specific administration stage. However, the technology has the following problems that 1, the drug delivery depth is not easy to meet the requirement by simply relying on the flexible pipe sleeve, the crawler-type rolling is difficult to realize at least in the moving-out process, secondary damage is still caused to the inner wall of the vagina in practice, and especially when the hardness and the thickness of the flexible pipe sleeve are smaller, the capability of the pipe wall for transmitting thrust is reduced along with the reduction, so that the technical problem of reducing the friction damage to the inner wall of the vagina is more difficult to solve; under the cooperation of the ejector rod and the support sleeve, although the technical feasibility is promoted, under the condition that the tube body is attached to the inner side of the support sleeve and lubrication is lacked, larger friction force exists between the tube body and the inner side of the support sleeve, when the flexible sleeve is made of silica gel, a pushing force is applied to the tube bottom through the ejector rod, the tube body is not easy to slide on the inner side wall of the support sleeve, the ejector rod can push the tube bottom to move forward, the tube wall of the flexible sleeve is driven by the tube bottom to turn inwards and outwards from the tube bottom end to the tube bottom (the feasibility is also only existed when the outer diameter of the ejector rod is smaller than the inner diameter of the flexible sleeve by 2 times, and the flexible sleeve wall thickness is equal to the situation that the tube bottom is blocked when the tube bottom is larger than the tube bottom is larger), when the flexible sleeve turns outwards, after the flexible sleeve stretches out from the front end of the support sleeve to enter the vagina, the turning outwards of the flexible sleeve only occurs in the support sleeve, the movement of the flexible sleeve relative to the inner wall of the vagina is realized, the traditional relative sliding movement mode is also difficult to solve in the actual medicine feeding process, the problem that friction damage to the inner wall of the vagina of a dry symptom is reduced, under the condition that the lubrication is lacked, the problem that the tube bottom is required to have certain rigidity, the tube bottom