CN212282524U

CN212282524U - Pre-operation intravaginal drug delivery device

Info

Publication number: CN212282524U
Application number: CN202020190632.XU
Authority: CN
Inventors: 王忠心; 陈芳; 高雪芹; 战霞霞
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2021-01-05
Anticipated expiration: 2030-02-20

Abstract

The utility model relates to a device for feeding medicine into vagina before operation. The preoperative intravaginal drug delivery device comprises an inner barrel, an outer barrel, a core bar and a limiting hoop which are formed by one-step injection molding of medical PE, wherein the outer barrel is movably sleeved outside the inner barrel, the core bar is movably filled in the inner barrel, the limiting hoop is arranged between the inner barrel and the outer barrel, the top end of the inner barrel is provided with a drug injection hole, and the tail end of the inner barrel is provided with a first-stage drug pushing lug; a plurality of medicine guide grooves are circumferentially distributed at the front end of the outer barrel, and a secondary medicine pushing lug is arranged at the tail end of the outer barrel; the top end of the core rod is provided with a rubber plug, and the tail end of the core rod is provided with a push handle. The preoperative intravaginal drug delivery device realizes multi-point adherent drug delivery and synergistic uniform drug distribution by secondary pushing matched with uniform distribution of the outer cylinder; and the medicine is crushed and shunted before being injected by scraping the tooth shunting rib between the inner cylinder and the outer cylinder, so that the medicine is uniformly discharged in multiple directions and equal amount.

Description

Pre-operation intravaginal drug delivery device

Technical Field

The utility model relates to a gynaecology's nursing equipment technical field, concretely relates to device of dosing in vagina before art.

Background

Preoperative care of gynecologic operations such as uterus, ovary and the like needs to be examined, administered and cleaned before an operation, the prior intravaginal administration devices are mostly push rod piston type administration devices, a drug outlet is arranged at the top end of a sleeve, when the administration device pushes gel or paste, the drug can be delivered to a specified depth, but the drug diffusion and the uniform attachment with the inner wall of the vagina can not be realized, so the gel and the paste take effect slowly after being delivered, when the administration device is used for pushing the liquid medicine or the washing liquid, no matter which horizontal position is adopted, the upper wall of the vagina is always difficult to contact the liquid medicine, the prior art has the administration device which can partially deliver the drug circumferentially, and the inner wall of the vagina is uniformly distributed with the drug, however, no matter the complicated impeller-shaped structure is arranged in an inner sleeve, a large number of one-way spray valves are arranged on the side wall of the sleeve, or a rotating mechanism is connected with the drug outlet, the cost and the manufacturing difficulty of the disposable device are greatly improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcomes the defects of the prior guiding inner drug feeder, and provides a preoperative intravaginal drug feeding device which can feed drugs by multiple points adherent and synergically and uniformly distribute the drugs.

In order to realize multipoint wall-attached drug delivery and synergistic uniform drug distribution, the preoperative intravaginal drug delivery device comprises an inner cylinder, an outer cylinder, a core rod and a limiting hoop, wherein the inner cylinder is formed by one-step injection molding of medical PE, the outer cylinder is movably sleeved outside the inner cylinder, the core rod is movably filled in the inner cylinder, the limiting hoop is arranged between the inner cylinder and the outer cylinder, the top end of the inner cylinder is provided with a drug injection hole, and the tail end of the inner cylinder is provided with a first-level drug pushing lug; a plurality of medicine guide grooves are circumferentially distributed at the front end of the outer barrel, and a secondary medicine pushing lug is arranged at the tail end of the outer barrel; the top end of the core rod is provided with a rubber plug, and the tail end of the core rod is provided with a push handle.

In order to avoid discomfort of patients in the propelling process, the medicine feeder adopts a top end arc transition design, the tops of the inner barrel and the outer barrel are hemispherical, the medicine injection hole is formed in the center of the spherical surface part of the top of the inner barrel, and the medicine guide groove extends downwards from the spherical surface part of the outer barrel to the cylindrical barrel wall of the outer barrel.

In order to facilitate the fixation of the inner tube and the outer tube and the pushing of the core rod during the two times of pushing, the length of the first-stage pushing lug is larger than that of the second-stage pushing lug, and the diameter of the pushing handle is larger than that of the inner tube.

In order to facilitate the design of an injection mold, the medicine guide grooves are straight grooves and are distributed on the upper part of the outer barrel in the circumferential direction, and six medicine guide grooves are formed in the outer barrel.

For further improving even effect of dosing for the cooperation rotation operation, lead the medicine groove and be the arc wall, totally four, the circumference is laid urceolus upper portion.

In order to scrape, crush and evenly distribute the medicine gel or paste block before medicine discharging, a plurality of scraping teeth are circumferentially arranged on the inner edge of the medicine injection hole of the inner cylinder; and a plurality of shunting ribs are radially distributed on the inner wall of the top end of the outer barrel.

In order to limit the position of the limiting hoop and facilitate removal, a connecting structure design of multipoint virtual connection or virtual knife lines is adopted, and the upper end and the lower end of the limiting hoop are respectively connected to the first-stage medicine pushing lug and the second-stage medicine pushing lug in a virtual mode.

In order to isolate the outer wall of the outer tube which is used as the contact surface of the vaginal wall during the gel or paste filling operation, a medical PVDC protective film is pasted on the outer wall of the outer tube.

The device is a compound standard medicine feeder with 3g specification and is suitable for feeding gel paste medicine, the length of the inner cylinder is 105mm, the diameter is 9mm, and the diameter of the medicine injection hole is 4.8 mm; the length of the outer barrel is 95mm, and the diameter of the outer barrel is 11 mm; the wall thickness of the inner cylinder and the outer cylinder is 1 mm.

The device is a compound standard medicine feeder with 5g specification and is suitable for feeding medicine liquid and washing liquor, the length of the inner cylinder is 118mm, the diameter is 10mm, and the diameter of the medicine injection hole is 4.3 mm; the length of the outer cylinder is 108mm, and the diameter of the outer cylinder is 12 mm; the wall thickness of the inner cylinder and the outer cylinder is 1 mm.

In order to accurately control the medicine feeding amount, the core bar can be provided with scale marks.

In order to ensure the sealing of the inner and outer cylinder parts and provide necessary medicine pushing resistance during the secondary medicine feeding, the tail end of the outer cylinder can be provided with a sealing washer.

The inner barrel, the outer barrel and the limiting hoop of the drug delivery device are single-material plastic parts which are sequentially injected and molded, and the manufacturing cost and the difficulty are not obviously increased on the basis of having the corresponding functions.

The disposable article of the drug delivery device adopts a single independent sterilization package (polyethylene bag) before use, and is intensively destroyed according to the regulation after use.

The utility model relates to a device of dosing in vagina before art's beneficial effect does:

(1) the secondary pushing is matched with the uniform distribution of the outer cylinder, so that the multi-point adherent drug delivery and synergistic uniform drug distribution are realized;

(2) the teeth scraping and shunting ribs between the inner barrel and the outer barrel are used for crushing and shunting the medicine before injection, so that the medicine is uniformly discharged in multiple directions.

Drawings

The utility model discloses a device for administering drug into vagina before operation is further explained with the attached drawings as follows:

fig. 1 is a schematic plan view of embodiment 1 of the present pre-operative intravaginal drug delivery device;

fig. 2 is a schematic perspective view of embodiment 1 of the present pre-operative intravaginal drug delivery device;

FIG. 3 is a sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic illustration of the exploded rear view of FIG. 2;

fig. 5 is a front view of the exploded structure of fig. 2.

Fig. 6 is a schematic plan view of embodiment 2 of the present pre-operative intravaginal drug delivery device;

fig. 7 is a schematic perspective view of embodiment 2 of the present pre-operative intravaginal drug delivery device;

fig. 8 is an exploded view of embodiment 2 of the present pre-operative intravaginal drug delivery device;

fig. 9 is a schematic plan view of embodiment 3 of the present pre-operative intravaginal drug delivery device;

fig. 10 is a schematic perspective view of embodiment 3 of the present pre-operative intravaginal drug delivery device;

FIG. 11 is a sectional view taken along line B-B of FIG. 9;

FIG. 12 is a schematic illustration of the exploded rear view of FIG. 10;

fig. 13 is a front exploded view of fig. 10.

In the figure:

1-an inner cylinder; 11-medicine injection hole, 12-first-level medicine pushing ear and 13-dry scraping tooth;

2-outer cylinder; 21-medicine guide groove 22-second-stage medicine pushing ear, 23-shunt bar and 24-protective film;

3-core bar; 31-rubber plug head, 32-push handle;

4-limiting hoop.

Detailed Description

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Embodiment 1: as shown in fig. 1 to 5, the preoperative intravaginal drug delivery device comprises an inner cylinder 1, an outer cylinder 2, a core bar 3 and a limiting hoop 4, wherein the inner cylinder 1 is formed by one-step injection molding of medical PE, the outer cylinder 2 is movably sleeved outside the inner cylinder 1, the core bar 3 is movably filled in the inner cylinder 1, and the limiting hoop 4 is arranged between the inner cylinder 1 and the outer cylinder 2, wherein the top end of the inner cylinder 1 is provided with a drug injection hole 11, and the tail end of the inner cylinder 1 is provided with a first-level drug pushing lug 12; a plurality of medicine guide grooves 21 are circumferentially distributed at the front end of the outer barrel 2, and a secondary medicine pushing lug 22 is arranged at the tail end of the outer barrel 2; the top end of the core rod 3 is provided with a rubber plug 31, and the tail end of the core rod 3 is provided with a push handle 32. Realizes the multi-point adherent drug delivery and the synergistic uniform drug distribution.

The top parts of the inner barrel 1 and the outer barrel 2 are hemispherical, the medicine injection hole 11 is formed in the center of the spherical surface part of the top part of the inner barrel 1, and the medicine guide groove 21 extends downwards from the spherical surface part of the outer barrel 2 to the cylindrical barrel wall of the outer barrel 2. The administration device adopts the top arc transition design, so that discomfort of patients in the propelling process is avoided.

The length of the first-stage medicine pushing lug 12 is greater than that of the second-stage medicine pushing lug 22, and the diameter of the pushing handle 32 is greater than that of the inner barrel 1. The fixing of the inner tube and the outer tube and the pushing of the core rod are convenient during the two-time medicine pushing.

The medicine guide grooves 21 are six straight grooves and are circumferentially arranged on the upper part of the outer barrel 2. Is convenient for the design of the injection mold.

A plurality of scraping teeth 13 are circumferentially arranged on the inner edge of the medicine injection hole 11 of the inner barrel 1; and a plurality of shunting ribs 23 are radially distributed on the inner wall of the top end of the outer cylinder 2. Before medicine is taken out, the medicine gel or paste is scraped and broken and evenly shunted.

The upper end and the lower end of the limiting hoop 4 are respectively connected to the first-stage medicine pushing ear 12 and the second-stage medicine pushing ear 22 in a virtual way. The design of a connecting structure of multipoint virtual connection or virtual knife lines is adopted, so that the limiting hoop plays a limiting role and is convenient to remove.

The length of the inner cylinder 1 is 105mm, the diameter of the inner cylinder is 9mm, and the diameter of the medicine injection hole 11 is 4.8 mm; the length of the outer cylinder 2 is 95mm, and the diameter of the outer cylinder is 11 mm; the wall thickness of the inner cylinder 1 and the outer cylinder 2 is 1 mm. The gel paste medicine feeder is combined with a standard medicine feeder with the specification of 3g and is suitable for feeding gel paste medicine.

Embodiment 2: as shown in fig. 6 to 8, a medical PVDC protective film 24 is attached to the outer wall of the outer cylinder 2. During the gel or paste filling operation, the outer wall of the outer tube, which serves as the vaginal wall contact surface, is isolated. The remaining structure and components are as described in embodiment 1, but omitted.

Embodiment 3: as shown in fig. 9 to 13, the medicine guide grooves 21 are arc-shaped grooves, four in number, and are circumferentially arranged on the upper portion of the outer cylinder 2. The uniform administration effect is further improved in cooperation with the rotation operation, and the rest of the structure and the components are omitted as described in embodiment 1.

Embodiment 4: the length of the inner cylinder 1 is 118mm, the diameter of the inner cylinder is 10mm, and the diameter of the medicine injection hole 11 is 4.3 mm; the length of the outer cylinder 2 is 108mm, and the diameter of the outer cylinder is 12 mm; the wall thickness of the inner cylinder 1 and the outer cylinder 2 is 1 mm. The medicine feeder with standard 5g specification is combined and is suitable for feeding medicine by liquid medicine and lotion. The remaining structure and components are as described in embodiment 1, but omitted.

Embodiment 5: the core rod can be provided with scale marks for accurately controlling the medicine delivery amount. The tail end of the outer barrel can be provided with a sealing gasket. Used for ensuring the sealing of the inner and outer cylinder parts and providing necessary medicine pushing resistance during the secondary medicine delivery. The remaining structure and components are as described in embodiment 1, but omitted.

The disposable article of the drug delivery device adopts a single independent sterilization packaging polyethylene bag before use, and is intensively destroyed according to the regulation after use.

The preoperative intravaginal drug delivery device realizes multi-point adherent drug delivery and synergistic uniform drug distribution by secondary pushing matched with uniform distribution of the outer cylinder; and the medicine is crushed and shunted before being injected by scraping the tooth shunting rib between the inner cylinder and the outer cylinder, so that the medicine is uniformly discharged in multiple directions and equal amount.

The above description shows the main features, the basic principles, and the advantages of the invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments or examples, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The foregoing embodiments or examples are therefore to be considered in all respects illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A device for administering a drug to a pre-operative vagina, comprising: comprises an inner cylinder (1), an outer cylinder (2), a core bar (3) and a limiting hoop ring (4) which are formed by one-step injection molding of medical PE, wherein the outer cylinder (2) is movably sleeved outside the inner cylinder (1), the core bar (3) is movably filled in the inner cylinder (1), the limiting hoop ring (4) is arranged between the inner cylinder (1) and the outer cylinder (2),

the top end of the inner cylinder (1) is provided with a medicine injection hole (11), and the tail end of the inner cylinder (1) is provided with a first-stage medicine pushing lug (12); a plurality of medicine guide grooves (21) are circumferentially distributed at the front end of the outer barrel (2), and a secondary medicine pushing lug (22) is arranged at the tail end of the outer barrel (2); the top end of the core rod (3) is provided with a rubber plug head (31), and the tail end of the core rod (3) is provided with a push handle (32).

2. The preoperative intravaginal drug delivery device of claim 1, wherein: the top parts of the inner barrel (1) and the outer barrel (2) are hemispherical, the medicine injection hole (11) is formed in the center of the spherical surface part at the top part of the inner barrel (1), and the medicine guide groove (21) extends downwards from the spherical surface part of the outer barrel (2) to the cylindrical barrel wall of the outer barrel (2).

3. The preoperative intravaginal drug delivery device of claim 2, wherein: the length of the first-stage medicine pushing lug (12) is greater than that of the second-stage medicine pushing lug (22), and the diameter of the pushing handle (32) is greater than that of the inner barrel (1).

4. The preoperative intravaginal drug delivery device of claim 3, wherein: the medicine guide grooves (21) are six straight grooves and are circumferentially arranged at the upper part of the outer barrel (2).

5. The preoperative intravaginal drug delivery device of claim 3, wherein: the medicine guide grooves (21) are arc-shaped grooves, and are distributed on the upper portion of the outer barrel (2) in the circumferential direction.

6. The preoperative intravaginal drug delivery device of claim 4 or 5, characterized by: a plurality of scraping teeth (13) are circumferentially arranged on the inner edge of the drug injection hole (11) of the inner cylinder (1); and a plurality of shunting ribs (23) are radially distributed on the inner wall of the top end of the outer cylinder (2).

7. The preoperative intravaginal drug delivery device of claim 6, wherein: the upper end and the lower end of the limiting hoop (4) are respectively connected to the first-stage medicine pushing ear (12) and the second-stage medicine pushing ear (22) in a virtual way.

8. The preoperative intravaginal drug delivery device of claim 6, wherein: the outer wall of the outer cylinder (2) is coated with a medical PVDC protective film (24).

9. The preoperative intravaginal drug delivery device of claim 1, wherein: the length of the inner cylinder (1) is 105mm, the diameter is 9mm, and the diameter of the medicine injection hole (11) is 4.8 mm; the length of the outer cylinder (2) is 95mm, and the diameter of the outer cylinder is 11 mm; the wall thickness of the inner cylinder (1) and the outer cylinder (2) is 1 mm.

10. The preoperative intravaginal drug delivery device of claim 1, wherein: the length of the inner cylinder (1) is 118mm, the diameter of the inner cylinder is 10mm, and the diameter of the medicine injection hole (11) is 4.3 mm; the length of the outer cylinder (2) is 108mm, and the diameter of the outer cylinder is 12 mm; the wall thickness of the inner cylinder (1) and the outer cylinder (2) is 1 mm.