CN115518276A

CN115518276A - Medicine feeder

Info

Publication number: CN115518276A
Application number: CN202211308615.1A
Authority: CN
Inventors: 桂文娟; 吴昊; 沈川; 吴征飞; 刘孝杰
Original assignee: Shenzhen Boon Medical Supplies Co ltd
Current assignee: Shenzhen Boon Medical Supplies Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-12-27
Anticipated expiration: 2042-10-25
Also published as: CN115518276B

Abstract

The invention discloses a medicine feeder, which relates to the field of intestinal administration equipment and comprises a self-lubricating part and a medicine feeding part, wherein an elastic pressing sheet is fixed outside the self-lubricating part in a sealing manner, a protective shell is arranged in the middle of the self-lubricating part, a lubricant bag is arranged in the protective shell, a lubricant is contained in the lubricant bag, lubricant through holes are formed in two ends of the lubricant bag at two ends of the self-lubricating part, an air inlet one-way valve is arranged at one end of the self-lubricating part between the elastic pressing sheet and the protective shell, an air exhaust one-way valve is arranged on the side wall of the protective shell, one end of the self-lubricating part is in threaded connection with the medicine feeding part, and a plurality of groups of air inlets are reserved at one end of the self-lubricating part connected with the medicine feeding part. According to the invention, the self-lubricating part and the administration part are arranged on the administration device, and the lubricant extruded from the self-lubricating part can play a good lubricating role on the administration device, so that the administration device can smoothly advance in the intestinal tract of a patient, and the administration is more uniform and easier.

Description

Medicine feeder

Technical Field

The invention relates to the field of intestinal administration equipment, in particular to an administration device.

Background

Gastroenterology disease is of a great variety, and medical knowledge is wide, and the operation is complicated and meticulous, and is specific, among the gastroenterology, when treating the intestinal, according to the injury condition in the intestinal, needs correspond and carries out the intestinal operation of dosing.

At present, medical personnel mostly adopt syringe formula or gasbag formula's ware of dosing to carry out intestinal operation of dosing, set up at the front end of utensil itself and dose the mouth, when stretching into patient's intestinal with the ware of dosing, patient's intestinal shrink easily causes the jam of mouth of dosing of front end, then can't carry out the dosing after the jam, influence the effect of dosing, and because after the foreign matter gets into the intestinal, patient's intestinal receives the stimulation and tightens up, increase of frictional force between ware of dosing and the patient's intestinal, it is comparatively difficult to make the ware of dosing get into the intestinal, need great power just to make the ware of dosing advance this moment, after exerting great thrust, it makes patient's intestinal receive the stimulation and tightens up with patient's intestinal friction to dose the ware, so vicious circle leads to dose the ware and is difficult to keep comparatively at the mode of advancing at the uniform velocity in patient's intestinal, and then be difficult for carrying out even work of dosing in patient's intestinal, and patient's comfort in whole treatment process all can reduce.

Chinese patent No. CN111729182B discloses a medical rectal administration device with lubricating capability, which comprises a base plate and a liquid applying device, wherein the liquid applying device is arranged in a mounting sleeve far away from the lubricating device and is used for applying medicine to an inflamed part of rectum; the lubricating device comprises: the oil storage tank is arranged in the mounting sleeve on one side and is used for storing lubricating oil; the pushing disc is arranged in the oil storage tank in a sliding manner; the grab handle is fixedly connected to the top of the push disc; the base is arranged on the upper side of the bottom plate; the limiting sleeve is arranged on the base; the annular opening sleeve is rotatably arranged on one side of the upper part of the limiting sleeve; the annular sponge blocks are arranged in the annular opening sleeve and the limiting sleeve and are used for absorbing lubricating oil and lubricating the liquid coating device; the infusion hose is connected between the top end of the annular opening sleeve and the bottom end of the oil storage tank through a bolt, the upper portion of the infusion hose is communicated with the inside of the oil storage tank, and the lower portion of the infusion hose is communicated with the inside of the annular opening sleeve.

The conventional medical rectum administration device with lubricating capability lubricates an administration device in a mode of smearing lubricating oil outside the administration device in the actual treatment process, so that the administration device is still polluted in the process of smearing the lubricating oil, the administration device is not sanitary enough and is easy to smear unevenly, and during use, the lubricating agent entering the rear surface of an intestinal tract of the administration device is continuously reduced, the lubricating effect of the administration device is gradually reduced until the lubricating capability is completely lost, and the problem of difficult administration still occurs at the moment.

Chinese patent with CN214807798U discloses a self-lubricating cavity channel medicine feeder, which comprises a medicine feeder outer cylinder, wherein a medicine feeder inner cylinder is installed inside the medicine feeder outer cylinder in a rotating mode, a lubricating pad is arranged between the inner wall of the medicine feeder outer cylinder and the outer wall of the medicine feeder inner cylinder, a piston rod is axially installed on the medicine feeder inner cylinder, a hemispherical piston is fixed at the top of the piston rod and extends to the inner cavity of the medicine feeder inner cylinder, a push handle is fixed at the bottom of the piston rod and extends to the outside of the medicine feeder inner cylinder, micropores are uniformly formed in the medicine feeder outer cylinder, a medicine feeding pipe extends upwards and is fixed in the middle of the top of the medicine feeder inner cylinder, a protection cylinder is arranged outside the medicine feeder outer cylinder, a rubber layer is bonded on the inner wall of the protection cylinder, a rubber column for sealing the medicine feeding pipe is fixed at the top of the inner wall of the rubber layer, and a reinforcing block is fixed at the bottom of the medicine feeder inner cylinder.

The existing self-lubricating cavity channel administration device has the function of actively injecting a lubricant in the actual treatment process, but after the liquid coating device extends into the body of a patient, medical workers cannot easily perceive the tightening condition in the intestinal tract of the patient, and if the intestinal tract of the patient is in a relaxation state, the lubricant can be continuously supplied, so that the excessive injection of the lubricant is caused, a large amount of lubricant is wasted, the lubricant injected into the body of the patient can dilute the medicament, the lubricant is discharged by the patient, a large amount of medicament is taken away, and the effect of the administration to the intestinal tract of the patient is greatly reduced.

In view of the above, the conventional drug delivery device for intestinal tract is not easy to distribute the drug easily and uniformly in the desired position of the intestinal tract of the patient in practical use.

Disclosure of Invention

Based on this, the invention aims to provide a drug delivery device, which solves the technical problem that the existing drug delivery device for intestinal tracts is not easy to easily and uniformly distribute the drug in the required position of the intestinal tract of a patient in practical use.

In order to achieve the purpose, the invention provides the following technical scheme: the medicine feeder comprises a self-lubricating part and a medicine feeding part, wherein an elastic pressing sheet is fixed outside the self-lubricating part in a sealing mode, a protective shell is arranged at the middle of the self-lubricating part, a lubricant bag is arranged in the protective shell, a lubricant is contained in the lubricant bag, lubricant through holes are formed in the two ends of the self-lubricating part at the two ends of the self-lubricating part, an air inlet check valve is arranged between the elastic pressing sheet and the protective shell at one end of the self-lubricating part, an exhaust check valve is arranged on the side wall of the protective shell, the medicine feeding part is connected with one end of the self-lubricating part in a threaded mode, and a plurality of groups of air inlets are reserved at one end of the medicine feeding part at the self-lubricating part.

Through adopting above-mentioned technical scheme, set up on the ware of dosing from lubrication portion and the portion of dosing, set up the structure that can disperse emollient promptly by the intestinal extrusion in the portion of dosing, get into patient internal back at the ware of dosing, patient's intestinal shrink extrudees from lubrication portion, can play good lubrication action to the ware of dosing from the emollient of being extruded in the lubrication portion, make the ware of dosing can be in the smooth advance of patient's intestinal, and then make more even and light of dosing.

The invention is further set that a medicine bag is arranged in the medicine feeding part, the medicine bag is filled with medicine, the medicine bag is connected with a peristaltic pump body through a hose, the peristaltic pump body is fixed in the medicine feeding part through a fixing structure, the output end of the peristaltic pump body is connected with a dispersion cavity arranged at one end of the medicine feeding part through a hose, one end of the dispersion cavity is connected with an annular dispersion opening, and a dispersion ring is arranged in the dispersion opening.

By adopting the technical scheme, the medicament is pumped out by the peristaltic pump body in the administration part and is dispersed in the intestinal tract of a patient.

The invention is further provided that the medicine bag and the lubricant bag are both elastic rubber liquid storage bags.

By adopting the technical scheme, the medicament in the medicine bag and the lubricant in the lubricant bag can be smoothly pumped out or extruded out.

The invention is further provided that a breathable film is arranged at the air inlet.

Through adopting above-mentioned technical scheme, prevent that liquid and emollient in the patient's intestinal from getting into in the cavity between the portion of dosing and the self-lubricating portion connected state, and then avoid above-mentioned liquid to get into the inside of self-lubricating portion through the check valve that admits air.

The invention is further provided that a hemispherical shell is fixed at one end of the self-lubricating part far away from the administration part.

By adopting the technical scheme, the administration device can enter the body of a patient more easily due to the structure of the hemispherical shell, and the intestinal tract of the patient is prevented from being scratched.

The invention is further provided that one end of the hemispherical shell is provided with a lubricant distributing port, the lubricant distributing port is connected with the lubricant extruding port through a lubricant passage, and a one-way valve which is from the lubricant extruding port to the lubricant distributing port is arranged in the lubricant passage.

By adopting the technical scheme, the lubricant extruded from the lubricant bag passes through the lubricant extrusion opening and then passes through the lubricant channel and then flows out of the lubricant distribution opening.

The invention is further arranged that a plurality of capillary grooves are distributed on the outer surface of the hemispherical shell in a ring shape.

Through adopting above-mentioned technical scheme, many capillary grooves utilize the capillary action with the even direction hemisphere shell surface of emollient efficient, avoid emollient to pile up to one side, promote the even degree that emollient dispersed to more be favorable to the propulsion of ware of dosing.

The invention is further arranged that the gas flow direction of the exhaust check valve flows from between the elastic pressing sheet and the protective shell to between the protective shell and the lubricant bag, and the gas flow direction of the gas inlet check valve flows from outside the self-lubricating part to between the elastic pressing sheet and the protective shell.

Through adopting the above technical scheme, atmospheric pressure rises between elasticity preforming and the protective housing when intestinal extrusion elasticity preforming, gaseous through the exhaust check valve flow to between protective housing and the lubricant bag, and then extrude the emollient in the lubricant bag, after elasticity preforming loses patient's intestinal pressure, recover by self elasticity, at the in-process that recovers, gaseous in the external intestinal passes through the air inlet, get back to after the check valve that admits air between elasticity preforming and the protective housing again, so reciprocal realization is lubricated at the position that the intestinal tightens up, and do not lubricate at the lax position of intestinal, make the ware of dosing can more at the uniform velocity impel in patient's intestinal, play the better effect of evenly dosing simultaneously.

The present invention is further configured such that one end of the self-lubricating portion is provided with an air escape valve at a position between the protective case and the lubricant bladder.

By adopting the technical scheme, after the device is used, the self-lubricating part and the dosing part are separated, the air relief valve is pressed manually, and the air between the protective shell and the lubricating bag is released, so that the device can be used for the next time conveniently.

The invention is further provided that the administration part is provided with a main control circuit board at one end of the peristaltic pump body.

By adopting the technical scheme, the remote control chip on the main control circuit board receives the start-stop signal of the peristaltic pump body driving device, and the effect of controlling the medicament to be spread and started and stopped is achieved.

In summary, the invention mainly has the following beneficial effects:

1. according to the invention, the self-lubricating part and the administration part are arranged on the administration device, and the self-lubricating part is provided with a structure which can disperse the lubricant when being extruded by the intestinal tract;

2. according to the invention, the self-lubricating part which is extruded by the intestinal tract of the patient to control the lubricant to flow out is arranged, when the intestinal tract of the patient is in a loose state, the self-lubricating part is not extruded by the intestinal tract, the lubricant cannot flow out, the waste of the lubricant is reduced, meanwhile, the phenomenon that the lubricant dilutes liquid medicine or takes away part of the medicine when flowing out is avoided, and the administration effect is further improved;

3. according to the invention, the peristaltic pump is arranged in the doser, and the peristaltic pump is used for pumping the medicament in the anther sac, so that the medicament is prevented from being polluted, and the doser is also convenient to clean;

4. according to the invention, the outlet dispersing ring is arranged at the outlet of the dispersing cavity, the loose and porous dispersing ring enables the medicine in the dispersing cavity to pass through the dispersing ring after reaching a certain pressure, and when the medicine passes through the dispersing ring, the dispersing cavity is in a state of being filled with the medicine, so that the medicine liquid can uniformly penetrate through the dispersing ring to enter the intestinal tract of a patient, the medicine liquid is more uniformly dispersed, and the uniformity of the medicine liquid dispersion is further improved;

5. according to the invention, the dosing part and the self-lubricating part which are connected through the threads are arranged, the feeding ports of the dosing part and the self-lubricating part are arranged on one side with the threads, so that the medicine and the lubricant can be conveniently added into the medicine bag, and meanwhile, after the dosing part and the self-lubricating part are connected through the threads, the liquid in the intestinal tract of a patient enters the pollution feeding port through the sealing structure at the connection part, so that the dosing device is more convenient to use.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a rear perspective view of the present invention;

FIG. 3 is a left side interior perspective view of the present invention;

FIG. 4 is a right side interior perspective view of the present invention;

FIG. 5 is an enlarged view of A of FIG. 4 in accordance with the present invention;

FIG. 6 is an enlarged view of B of FIG. 4 in accordance with the present invention;

FIG. 7 is a front perspective view of the administration section of the present invention;

fig. 8 is a front perspective view of a self-lubricating portion of the present invention;

FIG. 9 is a rear perspective view of the administration section of the present invention;

FIG. 10 is a rear perspective view of the self-lubricating portion of the present invention;

FIG. 11 is a rear interior perspective view of the administration section of the present invention;

fig. 12 is a rear interior perspective view of the self-lubricating portion of the present invention.

In the figure: 1. a self-lubricating portion; 101. elastic tabletting; 102. a protective shell; 103. a lubricant bladder; 104. a lubricant injection port; 105. a lubricant extrusion port; 106. an exhaust check valve; 107. an air inlet check valve; 108. blind holes; 109. an air inlet; 1010. a gas release valve; 2. a drug administration section; 201. a medicine bag; 202. a peristaltic pump body; 203. a dispersion chamber; 204. a dispersion port; 205. a cloth spreading ring; 206. a telescopic inserted column; 207. a charging port; 208. a medicament injection port; 209. a main control circuit board; 2010. packaging the lithium battery; 2011. a drive motor; 3. a hard rubber strip; 4. a hemispherical shell; 401. a lubricant passage; 402. a lubricant spreading port; 403. a capillary groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

As shown in fig. 1 to 12, the administration device includes a self-lubricating portion 1 and an administration portion 2, an elastic pressing sheet 101 is hermetically fixed outside the self-lubricating portion 1, a protective shell 102 is disposed in the middle of the self-lubricating portion 1, a lubricant bag 103 is disposed in the protective shell 102, a lubricant is contained in the lubricant bag 103, lubricant through holes are disposed at both ends of the self-lubricating portion 1 at both ends of the lubricant bag 103, the through holes disposed at both ends are a lubricant injection hole 104 and a lubricant extrusion hole 105, check valves are disposed in the lubricant injection hole 104 and the lubricant extrusion hole 105, the flow direction of the check valves is that the lubricant injection hole 104 flows to the lubricant extrusion hole 105, an air inlet check valve 107 is disposed at a position between the elastic pressing sheet 101 and the protective shell 102 at one end of the self-lubricating portion 1, an air outlet check valve 106 is disposed on a side wall of the protective shell 102, the administration portion 2 is connected to one end of the self-lubricating portion 1 through a screw thread, a sealing ring is disposed at a connection position, a plurality of air inlets 109 are left at one end of the self-lubricating portion 1 connected to the administration portion 2, and the air inlets 109 are not shielded by a connection position of the self-lubricating portion 1 and the administration portion 2, thereby preventing influence on the air inlet effect of the air inlets 109.

On the basis of the above structure, in this embodiment, a medicine bag 201 is disposed in the medicine feeding portion 2, the medicine bag 201 is loaded with medicine, the medicine bag 201 is connected to a liquid inlet end of a peristaltic pump body 202 through a hose, the peristaltic pump body 202 is fixed in the medicine feeding portion 2 through a fixing structure, an output end of the peristaltic pump body 202 is connected to a dispersing cavity 203 disposed at one end of the medicine feeding portion 2 through a hose, one end of the dispersing cavity 203 is connected to an annular dispersing port 204, a dispersing ring 205 is disposed in the dispersing port 204, the dispersing ring 205 is of a loose porous structure, the medicine in the dispersing cavity 203 can pass through the dispersing ring 205 after reaching a certain pressure by the loose porous dispersing ring 205, and when the medicine passes through the dispersing ring 205, the medicine can uniformly permeate through the dispersing ring 205 to enter an intestinal tract of a patient due to the fact that the dispersing cavity is in a state of being filled with medicine, so that the medicine can uniformly permeate into the intestinal tract of the patient, the medicine can be dispersed more uniformly dispersed, the peristaltic action of the medicine can further improve the uniformity of the dispersion, the medicine can be pumped out in the intestinal tract of the medicine bag 2, a medicine injection port 208 is disposed at an end of the medicine injection port 202 far away from the medicine feeding portion, and the medicine injection port 208, the medicine can avoid the medicine leakage of the medicine can be prevented.

The medicine bag 201 and the lubricant bag 103 are elastic rubber liquid storage bags, and meet the medical rubber standard, so that the medicine in the medicine bag 201 and the lubricant in the lubricant bag 103 can be smoothly pumped out or extruded out.

On the basis of the above structure, in the present embodiment, the air inlet 109 is provided with a permeable membrane, specifically, an eight-stage hydrophobic oil-proof permeable membrane manufactured by microtia of Dongguan, which can prevent the liquid and lubricant in the intestinal tract of the patient from entering the cavity between the drug delivery portion 2 and the self-lubricating portion 1 in the connection state, and further prevent the liquid from entering the self-lubricating portion 1 through the air inlet check valve 107.

On the basis of the structure, in the embodiment, the hemispherical shell 4 is fixed at one end of the self-lubricating part 1, which is far away from the administration part 2, and the administration device can enter the body of a patient more easily by the structure of the hemispherical shell 4, and the intestinal tract of the patient is prevented from being scratched.

One end of the hemispherical shell 4 is provided with a lubricant distributing port 402, the lubricant distributing port 402 is connected with the lubricant extrusion port 105 through a lubricant passage 401, a check valve which extends from the lubricant extrusion port 105 to the lubricant distributing port 402 is arranged in the lubricant passage 401, and the lubricant extruded from the lubricant bag 103 passes through the lubricant extrusion port 105, passes through the lubricant passage 401 and then flows out of the lubricant distributing port 402.

In addition to the above structure, in the present embodiment, the air release valve 1010 is provided at a position between the protective shell 102 and the lubricant bag 103 at one end of the self-lubricating portion 1, and after the device is used, the self-lubricating portion 1 and the drug delivery portion 2 are separated, and then the air release valve 1010 is manually pressed to release the air between the protective shell 102 and the lubricant bag 103, thereby facilitating the next use of the device.

On the basis of the structure, in this embodiment, the outer surface of the hemispherical shell 4 is annularly provided with the plurality of capillary grooves 403 in a scattered manner, the plurality of capillary grooves 403 uniformly guide the lubricant to the surface of the hemispherical shell 4 with high efficiency by utilizing the capillary action, so that the lubricant is prevented from being accumulated to one side, the uniform degree of lubricant scattering is improved, and the propelling of the dispenser is facilitated.

The embodiment also provides that the air flow of the air exhaust check valve 106 flows from the space between the elastic pressing sheet 101 and the protective shell 102 to the space between the protective shell 102 and the lubricant bag 103, the air flow of the air inlet check valve 107 flows from the outside of the lubricating part 1 to the space between the elastic pressing sheet 101 and the protective shell 102, when the elastic pressing sheet 101 is squeezed by the intestinal tract, the air pressure between the elastic pressing sheet 101 and the protective shell 102 is increased, the air flows from the air exhaust check valve 106 to the space between the protective shell 102 and the lubricant bag 103, so as to squeeze out the lubricant in the lubricant bag 103, after the elastic pressing sheet 101 loses the pressure of the intestinal tract of the patient, the elastic recovery of the elastic pressing sheet is realized by self elasticity, in the recovery process, the air in the external intestinal tract passes through the air inlet 109 and returns to the space between the elastic pressing sheet 101 and the protective shell 102 through the air inlet check valve 107, the lubrication is realized in a reciprocating manner, and the lubrication is not carried out at the relaxed position of the intestinal tract, so that the administration device can be propelled in the intestinal tract of the patient more uniformly, and the better effect of uniform administration is achieved.

On the basis of above-mentioned structure, in this embodiment, portion 2 of dosing is provided with main control circuit board 209 in the one end of peristaltic pump body 202, receive peristaltic pump body 202 drive arrangement's the signal that stops through the remote control chip on main control circuit board 209 and open, reach the effect that control medicament spreads to open and stop, one side of peristaltic pump body 202 is connected with driving motor 2011, drive peristaltic pump body 202 work through driving motor 2011, one side at driving motor 2011 is provided with encapsulation lithium cell 2010, encapsulation lithium cell 2010 is driving motor 2011 and main control circuit board 209 power supply through the wire, and connect the mouth 207 of charging that sets up in portion 2 one end of dosing through the wire, charge for encapsulation lithium cell 2010 through mouth 207, the remote control chip that sets up on main control circuit board 209 specifically is the CMT2189B SOC remote control chip of china's microelectronics company production, the procedure of control driving motor 2011 is stored in the chip.

One end of the administration part 2 is fixedly connected with a hard adhesive tape 3, and the hard adhesive tape 3 is a tool which is commonly used in the medical field and is used for sending an enteroscope and an administration device into the body of a patient.

Furthermore, in order to prevent the loose condition of the administration device in the body of the patient, the blind hole 108 is arranged on one side of the self-lubricating part 1 facing the administration part 2, the administration part 2 is provided with the telescopic insertion column 206 with the telescopic end made of magnetic material facing the self-lubricating part 1, a spring structure is arranged in the fixed end of the telescopic insertion column 206, the spring structure props against the telescopic end of the telescopic insertion column, after the self-lubricating part 1 and the administration part 2 are in threaded connection in place, the telescopic end of the telescopic insertion column 206 is just inserted into the blind hole 108, the effect of preventing the self-lubricating part 1 from being connected and loosened with the administration part 2 is achieved, when the self-lubricating part 1 and the administration part 2 are required to be detached, only the magnet is needed to be used for attracting the movable end of the telescopic insertion column 206 close to the telescopic insertion column 206 on one side of the administration part 2, and the self-lubricating part 1 and the administration part can be detached conveniently by rotating the self-lubricating part 1.

The administration device with the self-lubricating function according to the tightness degree in the intestinal tract of the patient is creatively arranged, so that the defect that the existing administration device for the intestinal tract is difficult to easily and uniformly disperse the medicament at the required position of the intestinal tract of the patient in actual use is avoided; in this scheme, through set up on the ware of dosing from the lubrication portion with the portion of dosing, set up the structure that receives the intestinal extrusion can disperse emollient promptly in the lubrication portion of dosing, get into patient internal back at the ware of dosing, patient's intestinal shrink extrusion is from the lubrication portion, and the emollient of being extruded can play good lubrication action to the ware of dosing in the portion of dosing, makes the ware of dosing can be in the smooth advance of patient's intestinal, and then makes and dose more evenly and light.

Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.

Claims

1. Applicator, including self-lubricating portion (1) and portion of dosing (2), its characterized in that: an elastic pressing sheet (101) is fixed outside the self-lubricating portion (1) in a sealing mode, a protective shell (102) is arranged in the middle of the self-lubricating portion (1), a lubricant bag (103) is arranged in the protective shell (102), a lubricant is contained in the lubricant bag (103), lubricant through holes are formed in two ends of the lubricant bag (103) at two ends of the self-lubricating portion (1), an air inlet check valve (107) is arranged between the elastic pressing sheet (101) and the protective shell (102) at one end of the self-lubricating portion (1), an air exhaust check valve (106) is arranged on the side wall of the protective shell (102), a dosing portion (2) is connected to one end of the self-lubricating portion (1) in a threaded mode, and a plurality of groups of air inlets (109) are reserved at one end of the self-lubricating portion (1) connected with the dosing portion (2).

2. The dispenser of claim 1, wherein: be provided with anther sac (201) in portion of dosing (2), the internal medicament that is loaded with of anther sac (201), anther sac (201) have peristaltic pump body (202) through the hose connection, peristaltic pump body (202) are fixed in portion of dosing (2) through fixed knot structure, the output of peristaltic pump body (202) has chamber (203) that spreads that sets up in portion of dosing (2) one end through the hose connection, the one end of dispersing chamber (203) is connected with annular mouth (204) that spreads, it encircles (205) to be provided with scattered cloth in mouth (204).

3. The dispenser of claim 2, wherein: the medicine bag (201) and the lubricant bag (103) are elastic rubber liquid storage bags.

4. The dispenser of claim 1, wherein: a breathable film is arranged at the air inlet (109).

5. The dispenser of claim 1, wherein: a hemispherical shell (4) is fixed at one end of the self-lubricating part (1) far away from the administration part (2).

6. The applicator of claim 5 wherein: one end of the hemispherical shell (4) is provided with a lubricant distributing port (402), the lubricant distributing port (402) is connected with the lubricant extruding port (105) through a lubricant channel (401), and a one-way valve which is from the lubricant extruding port (105) to the lubricant distributing port (402) is arranged in the lubricant channel (401).

7. The dispenser of claim 5, wherein: the outer surface of the hemispherical shell (4) is distributed with a plurality of capillary grooves (403) in a ring shape.

8. The dispenser of claim 1, wherein: the air flow of the exhaust check valve (106) flows from the space between the elastic pressing sheet (101) and the protective shell (102) to the space between the protective shell (102) and the lubricant bag (103), and the air flow of the air inlet check valve (107) flows from the outside of the self-lubricating part (1) to the space between the elastic pressing sheet (101) and the protective shell (102).

9. The dispenser of claim 1, wherein: one end of the self-lubricating part (1) is provided with an air release valve (1010) at a position between the protective shell (102) and the lubricant bag (103).

10. The applicator of claim 2 wherein: the drug administration part (2) is provided with a main control circuit board (209) at one end of the peristaltic pump body (202).