CN112933380B

CN112933380B - Dual anorectal drug delivery device

Info

Publication number: CN112933380B
Application number: CN202110137561.6A
Authority: CN
Inventors: 方跃坤; 谢作钢
Original assignee: Wenzhou Hospital Of Integrated Traditional Chinese And Western Medicine
Current assignee: Wenzhou Hospital Of Integrated Traditional Chinese And Western Medicine
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2023-01-20
Anticipated expiration: 2041-02-01
Also published as: CN112933380A

Abstract

The invention discloses a double anorectal administration device which can fix suppository medicines to be sent to anorectal focus, externally control the suppository to be pushed out, and switch an administration head to administer liquid medicines. The key points of the technical scheme are as follows: the utility model provides an anorectal drug delivery device, including the control mechanism who is arranged in inserting the mechanism of dosing in the anorectal and is used for controlling the drug delivery, the mechanism of dosing includes inner pin and the head of dosing, it connects in inner pin front end portion to dose the head, the medicine gets into anorectal focus department from dosing the head, it is equipped with the parcel structure that is used for fixed suppository class medicine to dose the head, the parcel structure adopts elastic material, suppository class medicine can partially wrap up in the parcel structure, the inner pin is long column, the inner pin surface is smooth, inner pin tail end connection control mechanism, be equipped with the control lever in the control mechanism, the control lever passes in inner pin inside and reach the parcel structure of giving the head, can push out suppository class medicine from the parcel structure through promoting the control lever.

Description

Dual anorectal drug delivery device

Technical Field

The invention relates to the field of medical supplies, in particular to a double anorectal administration device.

Background

Anorectal diseases commonly occur in more than 30 diseases at anorectal sites. In urinary male diseases, because the physiological anatomical position of the prostate is special, the prostate is tightly attached to the rectum, and prostatitis also occurs at the perianal part and other parts. In the treatment of the diseases, symptoms are difficult to control sometimes by using a simple oral medicament, the effect is not good, but the medicament can directly act on an affected part by applying an external treatment method, so that the medicament has the efficacy of directly reaching the focus of a disease, thereby playing the treatment effect, and the method is also a unique treatment method in surgery.

However, there are still some disadvantages to the current clinical use of the existing modes of administration: when the suppository is used, the suppository is difficult to be well fixed by pushing the suppository through fingers, and the lengths of different fingers of people are different, so that the administration position is easy to be inaccurate. When the liquid medicine is used, the liquid medicine is injected into the catheter, and only can flow out of the catheter port, so that the liquid medicine can not uniformly cover the affected part, and the treatment effect is affected. The device has two functions, and the embarrassment that only one of solid suppository or liquid catheter can be used in the past is avoided. In the process of dosing, the patient can independently use this device, and easy operation is convenient, protects patient privacy to a certain extent, reduces patient's health burden.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a dual anorectal administration device which can fix suppository medicines to be delivered to anorectal focuses and control the suppository to be pushed out from the anus, is simple and convenient in operation mode, can be switched into a liquid medicine administration mode by changing a medicine delivery head, injects liquid medicine into the anorectum by controlling a push injection pipe outside the anus, and flows out in a uniform outward diffusion mode, so that the liquid medicine can uniformly cover the affected parts, and is favorable for exerting the effect of the liquid medicine to a greater extent.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

a dual anorectal administration device comprises an administration mechanism and a control mechanism, wherein the administration mechanism is used for being inserted into anorectal, the administration mechanism comprises an inner inserting rod and an administration head, the administration head is connected to the front end portion of the inner inserting rod, medicine enters anorectal focus from the administration head, the administration head is provided with a wrapping structure used for fixing suppository type medicines, the wrapping structure is made of elastic materials, the suppository type medicines can be partially wrapped in the wrapping structure, the inner inserting rod is in an elongated column shape, the outer surface of the inner inserting rod is smooth, the tail end portion of the inner inserting rod is connected with the control mechanism, a control rod is arranged in the control mechanism, the control rod penetrates through the inner inserting rod and reaches the wrapping structure of the administration head, and the suppository type medicines can be pushed out of the wrapping structure by pushing the control rod.

Compared with the prior art, the double anorectal administration device adopting the technical scheme has the following beneficial effects:

1. adopt elastic administration head to wrap up the latter half of suppository class medicine, not only can be fixed the suppository betterly, prevent that the suppository from droing before pushing the anus with the in-process that pushes away, can push the suppository in addition after can be at anus outside operation control lever to release the suppository from dosing the head, can effectively avoid the suppository to drop or block the unable condition that breaks away from midway.

2. After inserting into the anus intestines for medicine head and interior pole, the control lever is located extracorporeally, only needs the operation control pole can release suppository class medicine to the affected part, easy operation, and the patient can also independently use this device to self administer, has not only saved the manpower, can also protect patient privacy to a certain extent, reduces patient's health and psychological burden.

Preferably, the administration head and the inner insertion rod are detachably connected through the quick-connect joint, one end of the administration head, which faces away from the wrapping structure, is provided with a transition surrounding part, the transition surrounding part is made of elastic materials, the inner diameter of the transition surrounding part is not larger than the outer diameter of the inner insertion rod in a natural state, when the administration head and the inner insertion rod are in a connection state, the transition surrounding part is wrapped on the outer surface of the inner insertion rod, the transition surrounding part enables the administration head to be smoothly connected with the inner insertion rod, the transition surrounding part is soft and has elasticity, gaps and hard edges and corners at the connection position of the administration head and the inner insertion rod are avoided, and therefore injury to a patient in the insertion process is avoided, and discomfort of the patient is reduced.

Preferably, the administration mechanism further comprises an administration tube for administering the liquid medicine, the surface of the administration tube is provided with a plurality of medicine outlet holes for flowing out the liquid medicine, and the administration tube and the inner insertion rod are also detachably connected through a quick-connect joint; control mechanism is equipped with and pushes the notes pipe, the inside passageway that is used for carrying the liquid medicine that is equipped with of interpolation pole, give the pencil through passageway and push the pipe and be linked together, can change for the medicine head and give the pencil through quick-operation joint conveniently fast to freely select different modes of dosing, when adopting to give the pencil and carry out the dosing of liquid class medicine, the liquid medicine can flow from a plurality of medicine holes simultaneously, makes the liquid medicine evenly cover in the affected part, and the liquid medicine fully contacts with the affected part, is favorable to exerting the liquid medicine effect to bigger degree.

Preferably, the end part of the administration tube is arc-shaped, a U-shaped channel is arranged in the administration tube, the medicine outlet holes are communicated with the U-shaped channel, after the administration tube is connected to the inner inserting rod, the end part of the U-shaped channel is aligned with the channel in the inner inserting rod, the resistance of the administration tube pushed into the anus and intestine can be reduced by the end part of the arc-shaped administration tube, the U-shaped channel is similar to the end part of the arc-shaped administration tube in shape, the structure is more reasonable, the medicine outlet holes are communicated with the U-shaped channel in a divergent mode, medicine liquid can flow out from the periphery and the end part of the administration tube in multiple directions, the administration uniformity is further improved, and the contact chance of the medicine liquid and a focus is increased.

Preferably, the end of the administration tube connected with the inner insertion rod is also provided with a transition surrounding part, so that the administration tube is smoothly connected with the inner insertion rod, the injury to a patient in the insertion process is avoided, and the discomfort of the patient is reduced.

Preferably, the injection tube comprises a tube barrel and a piston rod, the tube barrel is provided with an inner tube for the control rod to pass through, the piston rod is annular and sleeved on the inner tube, the control rod extends outwards from the end part of the piston rod, and the control rod is designed in the injection tube so that the whole drug delivery device is more integrated, and the injection tube and the control rod can be conveniently operated by a single hand.

Preferably, the end part of the piston rod is provided with a first push-pull part, the end part of the control rod is provided with a second push-pull part, and the outer diameter of the second push-pull part is larger than the inner diameter of the piston rod, so that the second push-pull part is prevented from being retracted into the piston rod, and fingers cannot contact the control rod.

Preferably, the inner insertion rod is made of flexible materials, a flexible support rod is arranged inside the inner insertion rod, the end part of the flexible support rod is fixedly connected with the control mechanism, the flexible support rod is hollow inside, the control rod penetrates through the inner cavity of the flexible support rod, the inner insertion rod can be twisted and bent through the flexible support rod, and the inner insertion rod stays in the shape after being bent, so that the bending degree of the inner insertion rod can be conveniently controlled, the shape and the extending direction of the anus and the intestine of a human body can be matched, the process of inserting the inner insertion rod is smoother, and the administration position is more accurate.

Preferably, the tail end of the inner inserting rod is provided with a blocking piece for limiting the insertion depth of the inner inserting rod, so that the phenomenon that the inner inserting rod is inserted too deeply due to misoperation or external force action and secondary injury is brought to a patient is avoided.

Preferably, it is equipped with anti-blocking film to go out the medicine hole, anti-blocking film adopts the porous material that the liquid medicine can pass, prevents that the solid tissue in the human body from getting into to cause the jam inside the pipe of dosing, probably has some solid biological tissue or excrement to remain in the anus intestines, owing to the inside pipeline of dosing pipe is thinner, if inside then causes the jam easily of these solid-state thing entering pipe of dosing, leads to the unable smooth outflow of liquid medicine, influences the effect of dosing.

Drawings

Fig. 1 and 2 are schematic structural views of an embodiment of the dual anorectal administration device of the present invention.

Fig. 3 is a schematic structural view of the administration head in this embodiment.

Fig. 4 is a schematic structural view of the administration tube in this embodiment.

Fig. 5 is a partially enlarged schematic view of the administration tube in this embodiment.

Fig. 6 is an external view of the present embodiment.

Reference numerals: 1. a drug delivery mechanism; 10. an inner insertion rod; 100. a flexible support rod; 101. a baffle plate; 11. a dosing head; 110. a wrapping structure; 111. a transition enclosure; 12. an administration tube; 120. a medicine outlet hole; 1200. an anti-blocking film; 121. a "U" shaped channel; 13. a quick-connect joint; 2. a control mechanism; 20. a control lever; 200. a second push-pull section; 21. injecting a pipe; 210. a tube barrel; 2100. an inner tube; 211. a piston rod; 2110. a first push-pull section; 3. a suppository is provided.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

The dual anorectal administration device shown in fig. 1, fig. 2 and fig. 6 comprises an administration mechanism 1 for inserting into anorectum and a control mechanism 2 for controlling administration, wherein the administration mechanism 1 comprises an inner insertion rod 10, an administration head 11 and an administration tube 12, the administration head 11 and the administration tube 12 are detachably connected with the front end part of the inner insertion rod 10 through a quick-connection joint 13, the administration head 11 is used for feeding a suppository 3 to an anorectal lesion, and the administration tube 12 is used for feeding a liquid medicine.

The inner rod 10 is in a long column shape, the inner rod 10 is made of a silica gel material and has a smooth outer surface, a flexible support rod 100 is arranged inside the inner rod 10, the flexible support rod 100 is hollow inside, and a stop piece 101 for limiting the insertion depth of the inner rod 10 is arranged at the tail end of the inner rod 10.

The control mechanism 2 is connected to the tail end of the inner rod 10, the control mechanism 2 is fixedly connected to the tail end of the flexible support rod 100, a control rod 20 is arranged in the control mechanism 2, the control rod 20 penetrates through the inner cavity of the flexible support rod 100 in the inner part of the inner rod 10 and reaches the drug delivery head 11, and the suppository 3 can be pushed out of the drug delivery head 11 by pushing the control rod 20.

The control mechanism 2 is provided with an injection tube 21, the injection tube 21 is used for conveying liquid medicine to the administration tube 12, a channel for conveying liquid medicine is arranged inside the inner inserting rod 10, and the administration tube 12 is communicated with the injection tube 21 through the channel.

The injection tube 21 comprises a tube barrel 210 and a piston rod 211, scales are arranged on the tube wall of the tube barrel 210, the dosage of enema liquid or liquid medicine can be accurately controlled through the scales, the tube barrel 210 is provided with an inner tube 2100 for the control rod 20 to pass through, the piston rod 211 is annular and is sleeved on the inner tube 2100, the control rod 20 extends outwards from the end of the piston rod 211, the end of the piston rod 211 is provided with a first push-pull part 2110, the end of the control rod 20 is provided with a second push-pull part 200, and the outer diameter of the second push-pull part 200 is larger than the inner diameter of the piston rod 211.

As shown in fig. 3, the administration head 11 is provided with a wrapping structure 110 for fixing the suppository 3, the wrapping structure 110 is made of an elastic material, the suppository 3 can be partially wrapped in the wrapping structure 110, one end of the administration head 11, which faces away from the wrapping structure 110, is provided with a transition surrounding part 111, the transition surrounding part 111 is made of an elastic material, the inner diameter of the transition surrounding part 111 is not larger than the outer diameter of the inner plug rod 10 in a natural state, and when the administration head 11 and the inner plug rod 10 are in a connected state, the transition surrounding part 111 wraps the outer surface of the inner plug rod 10.

As shown in fig. 4 and 5, the administration tube 12 has a plurality of drug discharge holes 120 for discharging the drug solution on the surface thereof, and the drug discharge holes 120 are provided with an anti-clogging film 1200, and the anti-clogging film 1200 is made of a porous material through which the drug solution can pass.

The administration tube 12 and the inner insert 10 are also detachably connected through the quick connector 13, the end of the administration tube 12 is arc-shaped, a U-shaped channel 121 is arranged inside the administration tube 12, the medicine outlet holes 120 are all communicated with the U-shaped channel 121, and after the administration tube 12 is connected to the inner insert 10, the end of the U-shaped channel 121 is aligned with the channel in the inner insert 10.

A transition surrounding part 111 is also provided at one end of the administration tube 12 connected to the inner insertion rod 10, and when the administration tube 12 and the inner insertion rod 10 are in a connected state, the transition surrounding part 111 wraps the outer surface of the inner insertion rod 10.

In actual use, when the suppository type medicine is to be administered, the tail end of the suppository 3 is inserted into the wrapping structure 110 of the administration head 11, then the piston rod 211 is pushed into the bottom of the barrel 210, the inner rod 10 is adjusted to be in a proper shape, finally the administration head 11 wrapping the suppository 3 is slowly inserted inwards from the anus of the patient, and after the administration head is inserted to a target depth, the control rod 20 is pushed to push the suppository 3 out of the administration head 11, so that the administration is completed.

In order to administer the liquid medicine, the administration head 11 needs to be detached, the piston rod 211 is dragged to suck the liquid medicine into the tube barrel 210, the administration tube 12 is fixed at the end of the inner insertion rod 10, the administration tube 12 is slowly inserted inwards from the anus of the patient, and after the insertion is carried out to the target depth, the piston rod 211 is pushed to discharge the liquid medicine from the medicine outlet hole 120, so that the administration is completed.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims

1. A dual anorectal delivery device characterised in that: comprises a drug delivery mechanism (1) inserted into the anorectum and a control mechanism (2) used for controlling drug delivery, wherein the drug delivery mechanism (1) comprises an inner inserting rod (10) and a drug delivery head (11), the drug delivery head (11) is connected to the front end part of the inner inserting rod (10), a drug enters into an anorectal lesion from the drug delivery head (11),

-the administration head (11) is provided with a wrapping structure (110) for fixing a suppository type medicament, the wrapping structure (110) is made of an elastic material, the suppository type medicament part (3) is wrapped in the wrapping structure (110), the administration head (11) is detachably connected with the inner plug rod (10) through a quick-connect joint (13), one end of the administration head (11) facing away from the wrapping structure (110) is provided with a transition surrounding part (111), the transition surrounding part (111) is made of an elastic material, the inner diameter of the transition surrounding part (111) is not larger than the outer diameter of the inner plug rod (10) in a natural state, and the transition surrounding part (111) wraps the outer surface of the inner plug rod (10) when the administration head (11) and the inner plug rod (10) are in a connection state; the administration mechanism (1) further comprises an administration tube (12) for administering the liquid medicine, a plurality of medicine outlet holes (120) for the outflow of the liquid medicine are formed in the surface of the administration tube (12), the administration tube (12) is detachably connected with the inner insertion rod (10) or the administration head (11) is detachably connected with the inner insertion rod (10);

-said inner rod (10) is in the shape of an elongated cylinder, the outer surface of the inner rod (10) is smooth, the rear end of the inner rod (10) is connected to said control mechanism (2),

-a control rod (20) is arranged in the control mechanism (2), the control rod (20) penetrates through the inner plug (10) and reaches a wrapping structure (110) of the administration head (11), the suppository (3) type medicine is pushed out from the wrapping structure (110) by pushing the control rod (20), the control mechanism (2) is provided with a push injection tube (21), a channel for conveying liquid medicine is arranged in the inner plug (10), and the administration tube (12) is communicated with the push injection tube (21) through the channel.

2. The dual anorectal delivery device of claim 1 wherein the device further comprises: the end part of the administration tube (12) is arc-shaped, a U-shaped channel (121) is arranged in the administration tube (12), the medicine outlet holes (120) are communicated with the U-shaped channel (121), and after the administration tube (12) is connected to the inner insertion rod (10), the end part of the U-shaped channel (121) is aligned with the channel in the inner insertion rod (10).

3. The dual anorectal delivery device of claim 2 wherein: the end of the administration tube (12) connected with the inner inserting rod (10) is also provided with a transition surrounding part (111).

4. The dual anorectal delivery device of claim 1 or claim 2 or claim 3 wherein: the injection tube (21) comprises a tube barrel (210) and a piston rod (211), the tube barrel (210) is provided with an inner tube (2100) through which the control rod (20) passes, the piston rod (211) is annular and is sleeved on the inner tube (2100), and the control rod (20) is outwards extended from the end of the piston rod (211).

5. The dual anorectal delivery device of claim 4 wherein said device further comprises: the end of the piston rod (211) is provided with a first push-pull part (2110), the end of the control rod (20) is provided with a second push-pull part (200), and the outer diameter of the second push-pull part (200) is larger than the inner diameter of the piston rod (211).

6. The dual anorectal delivery device of claim 1 wherein said anorectal delivery device further comprises: the inner inserting rod (10) is made of flexible materials, a flexible supporting rod (100) is arranged inside the inner inserting rod (10), the end portion of the flexible supporting rod (100) is fixedly connected with the control mechanism (2), the interior of the flexible supporting rod (100) is hollow, and the control rod (20) penetrates through the inner cavity of the flexible supporting rod (100).

7. The dual anorectal delivery device of claim 1 wherein the device further comprises: the tail end of the inner insert rod (10) is provided with a baffle (101) for limiting the insertion depth of the inner insert rod (10).

8. The dual anorectal delivery device of claim 1 wherein said anorectal delivery device further comprises: the medicine outlet (120) is provided with an anti-blocking film (1200), and the anti-blocking film (1200) is made of a porous material through which liquid medicine can pass.