CN215084110U

CN215084110U - Rectum drug administration device

Info

Publication number: CN215084110U
Application number: CN202121028767.7U
Authority: CN
Inventors: 曾蕾; 司雨; 杜子琪; 廖慧慧
Original assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Current assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-10
Anticipated expiration: 2031-05-11

Abstract

The utility model relates to the technical field of medical instruments, in particular to a rectal administration device, which comprises a drug feeding cylinder, a first drug delivery assembly and a second drug delivery assembly, wherein the first drug delivery assembly is connected with a first connecting part; the second medicine conveying assembly comprises an enema bag, a flow guide pipe and a sleeve head which are sequentially connected, and the sleeve head is connected with the second connecting part. When solid or ointment medicine is injected into the rectum, the medicine is firstly placed into the medicine cylinder, the head end part of the medicine cylinder is inserted into the rectum to a specified position, and the medicine is pushed towards the medicine outlet through the first medicine conveying assembly to enter a specified position of the rectum. When liquid medicine needs to be injected into the rectum, the first medicine conveying assembly is moved out, the sleeve head at one end of the flow guide pipe is connected with the second connecting part on the medicine feeding barrel, the medicine feeding barrel is inserted into the rectum through the anus, and at the moment, the medicine in the enema bag can be injected into the rectum to a specified position. Can be used for conveying solid or ointment medicaments and liquid medicaments, realizes multiple purposes and meets the use requirements of different patients.

Description

Rectum drug administration device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to rectum drug delivery device.

Background

Rectal administration includes administration of various dosage forms of drugs such as suppository, capsule, tablet, powder, ointment and liquid medicine, and is used for direct administration into rectum, and due to the effective components thereof being melted in rectum, the drugs are absorbed by the inner wall of mucosa of rectum to treat local part of patient or act on whole body through vein and lymphatic system. Therefore, rectal administration can avoid the inactivation of some specific medicines in the stomach or liver, so that the medicine can be prevented from being damaged by gastric PH or enzyme, the first-pass effect is reduced, the interference factors to the medicines are few, and the medicine is particularly suitable for patients who can not take oral medicines, such as vomit, gastrointestinal diseases and the like. Meanwhile, for children resistant to medicine taking and transfusion, rectal administration can be adopted for treating some diseases. In addition, some gynecological patients also need to act on the rectum through the use of drugs, thereby achieving a therapeutic effect.

At present, the rectal administration method in China is single, fumigation or fingerstall propulsion is often adopted, and in most cases, the administration depth is not easy to control and is often insufficient. In addition, because the administration dosage forms are different, patients need to use different administration devices when changing the administration dosage forms, and the specifications of the rectal administration devices in the current market are not uniformly specified, which causes inconvenience for use. Based on the above, researchers develop and research a disposable drug delivery device suitable for various dosage forms, so as to achieve the purposes of accurate drug delivery, convenience, sanitation and multiple purposes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rectum drug delivery device to solve the technical problem that the rectum drug delivery device can not be multi-purpose for one among the prior art.

In order to achieve the above object, the present invention provides a rectal administration device, which comprises a drug delivery cartridge, a first drug delivery assembly and a second drug delivery assembly, wherein the first drug delivery assembly is connected to the first connection portion and is adapted to drive the drug in the drug delivery cartridge to move through the elastic plug and into the rectum; the second medicine conveying assembly comprises an enema bag, a guide pipe and a sleeve head which are sequentially connected, the sleeve head is connected with the second connecting portion, and liquid medicine in the enema bag sequentially flows through the guide pipe and the medicine feeding barrel and then enters the rectum.

Furthermore, the enema bag is a spherical bag, a switch is arranged on one side of the enema bag, and a flow stopping clamp is arranged on the flow guide pipe.

Further, first connecting portion set up the complete set tubulose, the inside cavity of first connecting portion forms the groove of giving medicine, first defeated medicine subassembly is including the medicine board and the push rod that push away that are connected, push away medicine board threaded connection in the inside wall of first connecting portion, push rod one end is to keeping away from it mouthful stretches out to give the cartridge case.

Furthermore, a baffle is arranged at one end of the push rod, which is positioned outside the medicine feeding barrel, a supporting plate is arranged at one end, which is far away from the medicine outlet, of the medicine feeding barrel, and the supporting plate is suitable for abutting against the baffle.

Further, the second connecting portion are of a complete set of tubular shapes, the inner cavity of the second connecting portion is of a circular truncated cone shape, the sleeve head is of a circular truncated cone shape and is suitable for being embedded into the inner cavity of the second connecting portion, and the outer side wall of the sleeve head and the inner side wall of the second connecting portion are provided with friction patterns.

Furthermore, a one-way valve is arranged in the guide pipe.

Furthermore, the elastic plug is made of rubber, a cross-shaped opening is formed in the elastic plug, and the opening is closed under the effect that the elastic plug is not influenced by external force.

Furthermore, the medicine feeding barrel is provided with one end of the medicine outlet and is arranged to be an arc surface.

Further, the outer side wall of the medicine feeding barrel is provided with scale marks.

Further, the drug delivery cartridge is composed of a non-toxic PS or ABS resin.

The beneficial effects of the utility model reside in that:

1. when solid or ointment medicine is injected into the rectum, the medicine is firstly placed into the medicine cylinder, the end part of the medicine feeding cylinder head is lubricated, the medicine is slowly inserted into the rectum to an appointed position, the medicine is pushed towards the medicine outlet through the first medicine conveying assembly, and finally the medicine breaks through the elastic plug at the top end and enters the appointed part of the rectum. When liquid medicine needs to be injected into the rectum, the first medicine conveying assembly is moved out, the sleeve head at one end of the flow guide pipe is connected with the second connecting portion on the medicine feeding barrel, the medicine feeding barrel is lubricated, liquid medicine is added into the enema bag, air in the medicine feeding barrel is driven out, the enema bag is inserted into the anus until the rectum, the enema bag is extruded, and the medicine in the enema bag can be injected into the rectum to the designated position at the moment. The utility model provides a rectum drug delivery device both can carry solid or ointment medicine and also can carry liquid medicine, has realized that a ware is multi-purpose, has satisfied different patients' user demand.

2. The enema bag is a spherical bag, one side of the enema bag is provided with a switch, and the flow stopping clamp is arranged on the flow guide pipe. Connecting the sleeve head with the second connecting part, lubricating the drug feeding barrel, opening a switch of the enema bag, placing the liquid medicine into the enema bag, opening the flow stopping clamp, closing the flow stopping clamp after driving out air in the drug feeding barrel, inserting the drug feeding barrel into the rectum, then opening the flow stopping clamp, and feeding the liquid medicine into the rectum by extruding the enema bag. Through setting up the flow stopping clamp, can directly irritate the medicine and discharge the air that gives in the cartridge case to the enema bag.

3. First defeated medicine subassembly is including the medicine board and the push rod that push away that are connected, pushes away medicine board threaded connection in the inside wall of first connecting portion, rotates the push rod, and the push rod drives when pushing away medicine board pivoted, pushes away the medicine board and can also advance along radial direction, with medicine propelling movement to the elastic plug and pass the elastic plug and enter into the rectum. Push away medicine board threaded connection in the inside wall of first connecting portion for push away more firm that the medicine board is connected, the propelling movement medicine of being convenient for.

4. Through the setting of baffle and support the board, inject the shift position of push rod for the accurate transport of medicine avoids extravagant.

5. The guide pipe is provided with a one-way valve, and the backflow phenomenon of the liquid medicine can be avoided due to the arrangement of the one-way valve.

6. Be equipped with scale mark for the lateral wall of cartridge case, scale mark can play the effect of warning, has a standard of quantization to the depth of insertion of the section of thick bamboo of dosing for the accurate transport of medicine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a rectal administration device according to an embodiment of the present invention in a first usage state;

fig. 2 is a schematic structural diagram of an elastic plug used in a rectal administration device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a second usage state of a rectal administration device according to an embodiment of the present invention.

Description of reference numerals:

1. feeding the medicine cartridge; 2. an elastic plug; 3. a push rod; 4. a dosing tank; 5. a second connecting portion; 6. a first connection portion; 7. a baffle plate; 8. a medicine pushing plate; 9. a resisting plate; 10. a flow stopping clip; 11. an enema bag; 12. a switch; 13. sleeving heads; 14. a flow guide pipe; 15. a one-way valve.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-3, a rectal administration device according to an embodiment of the present invention includes a drug delivery cartridge 1, a first drug delivery assembly and a second drug delivery assembly, wherein one end of the drug delivery cartridge 1 is adapted to be inserted into a rectal region, and a first connection portion 6 and a second connection portion 5 are disposed therein, the end inserted into the rectum is a drug outlet, and an elastic plug 2 is disposed at the drug outlet; the first drug delivery assembly is connected to the first connection 6 and is adapted to drive the drug in the drug delivery cartridge 1 to move through the elastomeric plug 2 into the rectum; the second medicine conveying assembly comprises an enema bag 11, a guide pipe 14 and a sleeve head 13 which are sequentially connected, the sleeve head 13 is connected with the second connecting part 5, and liquid medicine in the enema bag 11 sequentially flows through the guide pipe 14 and the medicine feeding barrel 1 and then enters the rectum.

When solid or ointment medicine is injected into the rectum, the medicine is firstly placed into the medicine cylinder, the end part of the head of the medicine cylinder 1 is lubricated, the medicine is slowly inserted into the rectum to a specified position, the medicine is pushed towards the medicine outlet through the first medicine conveying assembly, and finally the medicine breaks through the top end elastic plug 2 and enters the specified position of the rectum. When liquid medicine needs to be injected into the rectum, the first medicine conveying assembly is moved out, the sleeve head 13 at one end of the guide pipe 14 is connected with the second connecting portion 5 on the medicine feeding barrel 1, the medicine feeding barrel 1 is lubricated, liquid medicine is added into the enema bag 11, air in the tube is driven out, the enema bag is inserted into the anus until the rectum, the enema bag 11 is squeezed, and at the moment, the medicine in the enema bag 11 can be injected into the rectum to a designated position. The utility model provides a rectum drug delivery device both can carry solid or ointment medicine and also can carry liquid medicine, has realized that a ware is multi-purpose, has satisfied different patients' user demand.

Specifically, one end of the administration tube 1, which is provided with the medicine outlet, is arranged to be a cambered surface, so that the administration tube is conveniently inserted into an anus and is not easy to damage surrounding skin tissues. First connecting portion 6 sets up the complete set tubulose, and the inside cavity of first connecting portion 6 forms for medicine groove 4, and first defeated medicine subassembly is including the medicine board 8 and the push rod 3 that push away that are connected, pushes away 8 threaded connection in the inside wall of first connecting portion 6 of medicine board, and 3 one ends of push rod are held to keeping away from the medicine mouth and are stretched out for cartridge case 1. The push rod 3 is rotated, and when the push rod 3 drives the medicine pushing plate 8 to rotate, the medicine pushing plate 8 can also advance along the radial direction, so that the medicine is pushed to the elastic plug 2 and passes through the elastic plug 2 to enter the rectum. Push away 8 threaded connection in the inside wall of first connecting portion 6 of medicine board for push away more firm that 8 connections of medicine board are convenient for propelling movement medicine. The rectum drug delivery device of the utility model is a disposable device, and the drug delivery cylinder 1 and the push rod 3 are made of nontoxic PS or ABS resin. The elastic plug 2 is made of rubber, latex is adopted in the embodiment, a cross-shaped opening is formed in the elastic plug 2, and the opening of the elastic plug 2 is closed under the action of no external force. When the elastic plug 2 is acted by external force, the cross-shaped opening can be opened to the maximum extent, so that the medicine can conveniently enter the rectum.

As a variant, the first connecting part 6 may also be in the shape of a smooth-inside sleeve, in which case the drug pushing plate 8 may be slidably connected to the first connecting part 6 only, and in which case pushing delivery may also be used.

Furthermore, a baffle 7 is arranged at one end of the push rod 3, which is positioned outside the medicine feeding barrel 1, a resisting plate 9 is arranged at one end of the medicine feeding barrel 1, which is far away from the medicine outlet, and the resisting plate 9 is suitable for being abutted against the baffle 7.

Specifically, the length of the administration cylinder 1 is 12cm, the diameter is 1.5cm, scale marks are arranged on the outside of the administration cylinder, the length of the administration groove 4 is 3cm, the diameter is 1cm, the medicine pushing plate 8 is cylindrical, the diameter is 1cm, the length is 0.5cm, and the lengths from the medicine pushing plate 8 to the limiting baffle 7 are the same as the length of the administration cylinder 1 and are about 12 cm. Through the setting of baffle 7 and resisting board 9, inject the shift position of push rod 3 for the accurate transport of medicine avoids extravagant.

Further, the second connecting portion 5 is set to be in a sleeve shape, the inner cavity of the second connecting portion 5 is set to be in a circular truncated cone shape, the sleeve head 13 is suitable for being embedded into the inner cavity of the second connecting portion 5, and the outer side wall of the sleeve head 13 and the inner side wall of the second connecting portion 5 are both provided with friction patterns.

Specifically, the sleeve head 13 is made of elastic materials, the sleeve head 13 is arranged in a circular truncated cone shape, the inner cavity of the second connecting portion 5 can be conveniently inserted, meanwhile, the sleeve head 13 and the second connecting portion 5 can be conveniently fastened and connected, and quick fixation is achieved. The lateral wall of pullover 13 and the inside wall of second connecting portion 5 all are equipped with the friction decorative pattern, can realize both zonulae occludens through the effect of frictional force. 14 one ends of honeycomb duct connect pullover 13, pullover 13 material is polybutylene terephthalate (PBT), and enema bag 11 is connected to the other end, and 11 materials of enema bag are aseptic medical polyethylene, and enema bag 11 is spherical bag, and the follow-up extrusion of being convenient for is sent the medicine, and 11 one sides of enema bag are equipped with switch 12, are equipped with on honeycomb duct 14 and end the flow and press from both sides 10, and honeycomb duct 14 material is silica gel, and end the flow and press from both sides 10 materials and be polybutylene terephthalate (PBT). Firstly, connecting the sleeve head 13 with the second connecting part 5, lubricating the medicine feeding barrel 1, opening a switch 12 of the enema bag 11, placing liquid medicine into the enema bag 11, opening the flow stopping clamp 10, closing the flow stopping clamp 10 after driving out air in the medicine feeding barrel 1, then inserting the medicine feeding barrel 1 into the rectum, then opening the flow stopping clamp 10, and sending the liquid medicine into the appointed part of the rectum by extruding the enema bag 11. By providing the flow stop clip 10, the enema bag 11 can be directly filled with medicine and the air inside the medicine cartridge 1 can be discharged. The length of the diversion tube 14 is about 30cm, the surface of the enema bag 11 is marked with scales, 1500ml of liquid medicine can be contained at most, the inside of the diversion tube 14 is provided with the one-way valve 15, and the backflow phenomenon of the liquid medicine can be avoided due to the arrangement of the one-way valve 15. In the present embodiment, the materials and dimensions of the respective components are merely preferable examples, but are not limited to the above-described materials and dimensions.

As a variant, the connection between the sleeve head 13 and the second connection portion 5 may be a snap connection, as long as the temporary fixed connection between the sleeve head and the second connection portion is achieved.

The above-mentioned drug delivery device specification is adult specification, and the child specification is that the cartridge portion and the sleeve head 13 portion are reduced by 30% according to the corresponding proportion on the basis of adult specification.

The implementation process of the embodiment is as follows:

when solid or ointment medicine needs to be injected into the rectum, the medicine feeding barrel 1 is connected with the push rod 3 in a threaded mode, and the medicine is placed into the medicine feeding groove 4 of the medicine feeding barrel 1 through the cross-shaped opening. The administration trough 4 shortens the travel of the medicine, and allows less gas to enter the rectum. Lubricating the head end part of the medicine feeding cylinder 1, and slowly inserting the medicine feeding cylinder into the rectum to reach corresponding scale marks; the medicine is pushed towards the medicine outlet by rotating the push rod 3, and finally the medicine breaks through the elastic plug 2 of the top cross-shaped opening and enters the appointed part of the rectum.

When liquid medicine needs to be injected into the rectum, the push rod 3 is screwed out. The switch 12 of the enema bag 11 is opened, the flow stopping clip 10 is closed, and the liquid medicine is put into the enema bag 11. The sleeve head 13 at one end of the guide pipe 14 is connected with the second connecting part 5 at the tail end of the medicine feeding barrel 1, after the medicine feeding barrel 1 is lubricated, the flow stopping clamp 10 is closed after air in the pipe is firstly expelled, then the medicine feeding barrel 1 is inserted into the rectum, then the flow stopping clamp 10 is opened, and the required liquid medicine can slowly flow into the designated position in the rectum cavity by extruding the enema bag 11 and adjusting the flow speed.

The rectum drug delivery device in the embodiment can more effectively, conveniently and quickly supply drugs to the rectal lesion of a patient, can achieve ideal drug delivery rectal depth, accurately deliver the drugs in place, reduce potential safety hazards, can be suitable for rectal drug delivery of drugs in different dosage forms such as suppository, capsules, tablets, powder, ointment and liquid medicine, and is suitable for patients with different ages and different requirements to use at home.

The general medicine enema medicine feeder is designed by a hose, and the hose has high softness, is easy to twist, fold and rotate after being inserted into a rectum, cannot reach a specified medicine feeding position, and has poor practicability. The cartridge case 1 is used in this embodiment instead of a tube for liquid drug enema, thereby preventing the tube from folding, twisting, and rotating. The liquid medicine enters the rectum by extruding the saccule, thereby facilitating the single operation of the patient.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A rectal administration device, comprising:

one end of the medicine feeding barrel (1) is suitable for being inserted into a rectum part, a first connecting part (6) and a second connecting part (5) are arranged in the medicine feeding barrel, one end inserted into the rectum is a medicine outlet, and an elastic plug (2) is arranged at the medicine outlet;

a first drug delivery assembly connected to said first connection (6) and adapted to drive a drug in a drug delivery cartridge (1) to move through said elastomeric plug (2) into the rectum;

the second medicine conveying assembly comprises an enema bag (11), a guide pipe (14) and a sleeve head (13) which are sequentially connected, wherein the sleeve head (13) is connected with the second connecting part (5), and liquid medicine in the enema bag (11) sequentially flows through the guide pipe (14) and enters the rectum after the medicine feeding barrel (1).

2. A rectal administration device according to claim 1, characterised in that the enema bag (11) is a spherical bag, a switch (12) is provided on one side of the enema bag (11), and a flow stopping clip (10) is provided on the flow guide tube (14).

3. A rectal administration device according to claim 1, wherein the first connection portion (6) is provided in a sleeve shape, an inner cavity of the first connection portion (6) forms a administration groove (4), the first drug delivery assembly comprises a drug pushing plate (8) and a push rod (3) which are connected, the drug pushing plate (8) is in threaded connection with an inner side wall of the first connection portion (6), and one end of the push rod (3) extends out of the drug administration cylinder (1) far away from the drug outlet end.

4. A rectal administration device according to claim 3, characterised in that a baffle (7) is provided at an end of the push rod (3) located outside the drug delivery cartridge (1), a retaining plate (9) is provided at an end of the drug delivery cartridge (1) remote from the drug outlet, and the retaining plate (9) is adapted to abut against the baffle (7).

5. A rectal administration device according to any one of claims 1 to 4, characterised in that the second connection part (5) is provided in the shape of a sleeve, the inner cavity of the second connection part (5) is provided in the shape of a circular truncated cone, the cuff (13) is adapted to fit into the inner cavity of the second connection part (5), and both the outer side wall of the cuff (13) and the inner side wall of the second connection part (5) are provided with a friction pattern.

6. A rectal administration device according to any one of claims 1 to 4, characterised in that the delivery tube (14) is provided internally with a one-way valve (15).

7. A rectal administration device according to any one of claims 1 to 4, characterised in that the elastic plug (2) is of rubber material, the elastic plug (2) being provided with a cruciform opening, the opening of the elastic plug (2) being closed in the absence of external forces.

8. A rectal administration device according to any one of claims 1-4, characterised in that the end of the cartridge (1) provided with the outlet is arranged as a curved surface.

9. A rectal administration device according to any one of claims 1-4, characterised in that the outer side wall of the cartridge (1) is provided with scale markings.

10. A rectal administration device according to any one of claims 1-4, characterised in that the drug delivery cartridge (1) consists of a non-toxic PS or ABS resin.