CN116808415B - Cavity medicine supply device - Google Patents
Cavity medicine supply device Download PDFInfo
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- CN116808415B CN116808415B CN202311087662.2A CN202311087662A CN116808415B CN 116808415 B CN116808415 B CN 116808415B CN 202311087662 A CN202311087662 A CN 202311087662A CN 116808415 B CN116808415 B CN 116808415B
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- tube
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- 239000003814 drug Substances 0.000 title claims abstract description 244
- 239000007788 liquid Substances 0.000 claims abstract description 159
- 239000010410 layer Substances 0.000 claims abstract description 86
- 239000011247 coating layer Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims description 71
- 239000011248 coating agent Substances 0.000 claims description 70
- 229940079593 drug Drugs 0.000 claims description 56
- 238000005192 partition Methods 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 238000012377 drug delivery Methods 0.000 claims description 15
- 239000011550 stock solution Substances 0.000 claims description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 235000015073 liquid stocks Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 18
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000638 stimulation Effects 0.000 abstract 1
- 208000037062 Polyps Diseases 0.000 description 18
- 238000009499 grossing Methods 0.000 description 18
- 239000000243 solution Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 206010013554 Diverticulum Diseases 0.000 description 10
- 239000011229 interlayer Substances 0.000 description 10
- 241000251468 Actinopterygii Species 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 230000003902 lesion Effects 0.000 description 4
- 230000036285 pathological change Effects 0.000 description 4
- 231100000915 pathological change Toxicity 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 210000000936 intestine Anatomy 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 102000038379 digestive enzymes Human genes 0.000 description 1
- 108091007734 digestive enzymes Proteins 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- 210000001215 vagina Anatomy 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to the technical field of medical supplies, and designs a cavity medicine supply device, which comprises a tube barrel and a push rod, wherein the tube barrel comprises a tube body and a tube head which are connected with each other, the inner side of the tube body is a first cavity which can accommodate the push rod, one end of the push rod is abutted with the tube head through the first cavity, the other end of the push rod applies force to push the tube head and the tube body into a cavity, a medicine coating layer is arranged around the outer side of the tube body and can absorb medicine liquid, a plurality of first through holes are arranged on the tube barrel, the medicine liquid is immersed into the medicine coating layer through the first through holes and then is adhered to the cavity of a patient, the medicine coating layer can be contacted with the cavity of the patient for a long time, the medicine liquid acts on an affected part for a long time, the medicine layer surrounds the tube body, the area is large, the medicine liquid is uniformly coated on the side wall of the cavity, the problem that the medicine cannot accurately reach a target position due to the excessive shrinkage of the cavity caused by the stimulation of the cavity, or the medicine can be extruded by the contracted cavity is solved, and the problem that the medicine is difficult to maintain in the cavity, and the medicine waste and the curative effect is not ideal is solved.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to a cavity and channel medicine supply device.
Background
In the current clinical treatment, the cavity administration is taken as one of main administration ways, has the advantages of avoiding the influence and damage of acid and digestive enzyme on the medicine without passing through the stomach and intestine, avoiding the irritation and damage of the medicine to the stomach and intestine, greatly improving the bioavailability of the medicine, and being a difficult point of the operation and a key point of ensuring the curative effect because the medicine is uniformly covered on the whole area and stably acted on target tissues within a certain time in the cavity administration operation.
In the prior art, for example, a cavity channel administration pipeline and an administration assembly with the application number of CN202222269025.4 are adopted, and the administration pipeline enters the cavity channel for administration, but in the process of delivering the medicine into the rectum, the cavity channel is stimulated to cause excessive shrinkage of the cavity channel, so that the medicine cannot accurately reach a target position, or the medicine is extruded out by the shrunk cavity channel, so that the medicine is difficult to maintain in the cavity channel, the medicine is wasted, and the curative effect is unsatisfactory; however, when the drug reaches the target site, it is often required to maintain the site for a certain period of time, usually more than 3 hours, to achieve the therapeutic effect, and because the effective maintenance time of the drug is difficult to achieve due to limitations of the drug dosage form, such as a water agent or gel, there is a need for a device for supplying a drug to a lumen, which can fully coat the lumen and maintain the lumen for a long period of time.
Disclosure of Invention
The application aims at: aiming at the problems that the drug delivery device is difficult to fully coat on pathological tissues and the acting time of the drug is too short in the prior art, the drug delivery device fully adheres to the pathological change part by arranging the drug coating and soaking the drug coating, so that the drug is fully adhered to the pathological change part for a long time.
In order to achieve the above object, the present application provides the following technical solutions:
the utility model provides a cavity way medicine feeding device, includes bobbin and ejector pin, the bobbin includes interconnect's pipe shaft and barrel head, the inboard of pipe shaft is for holding the first cavity of ejector pin, the one end of ejector pin passes through first cavity with barrel head butt, barrel head is smooth hemisphere, the other end of ejector pin exerts force with barrel head pushes in the cavity way, barrel head drives the pipe shaft gets into the cavity way, the medicine coating encircles the outside of pipe shaft sets up and can absorb the liquid medicine, be provided with a plurality of first through-holes on the bobbin, the liquid medicine passes through the feed liquor pipe gets into the bobbin, the rethread first through-hole is immersed the medicine coating.
According to the preferred technical scheme, the outer side of the medicine coating layer is further provided with a smooth layer, the outer diameter of the smooth layer is smaller than or equal to the outer diameter of the cylinder head, the outer side of the smooth layer is made of smooth materials, one end of the smooth layer is detachably connected with the cylinder head, the length of the other end of the smooth layer exceeds that of the pipe body, the smooth layer is made of waterproof materials, a waterproof interlayer is formed between the smooth layer and the pipe body, a second cavity capable of containing liquid is formed in the cylinder head, the cylinder head comprises a top surface in contact with a cavity and an abutting surface in contact with a top rod, the liquid inlet pipe is arranged in the top rod, a second through hole is formed in the abutting surface, liquid medicine is injected into the second cavity through the second through hole, and the first through hole is arranged at a position of the abutting surface corresponding to the waterproof interlayer, so that the liquid medicine enters the waterproof interlayer through the first through hole.
As a preferable technical scheme of the application, an arc-shaped partition plate is further arranged in the second cavity, the edge of the arc-shaped partition plate is connected with the edge of the second cavity, the arc-shaped partition plate divides the second cavity into a liquid storage cavity and a medicine storage cavity, the liquid storage cavity for storing cleaning liquid is formed between the arc-shaped partition plate and the top surface of the cylinder head, the medicine storage cavity for storing medicine is formed between the abutting surface of the arc-shaped partition plate and the cylinder head, a third through hole is arranged at the position of the arc-shaped partition plate corresponding to the second through hole, the diameter of the third through hole is consistent with the outer diameter of the liquid inlet pipe, and a plurality of fourth through holes are arranged on the top surface and are used for discharging liquid in the liquid storage cavity to a cavity channel.
As the preferable technical scheme of the application, the edge of the third through hole is also provided with a cover plate, the cover plate is hinged with the arc-shaped partition plate and keeps normally closed to the third through hole, and the liquid inlet pipe can jack the cover plate to enter the liquid storage cavity through the third through hole.
As a preferable technical scheme of the application, the liquid inlet pipe is an inner layer pipe and an outer layer pipe which are mutually attached, the inner layer pipe is used for conveying normal saline, the outer layer pipe is used for conveying liquid medicine, the inner layer pipe can be pulled out from the outer layer pipe, and the length of the inner layer pipe is longer than the length from the ejector rod to the cover plate plus the length from the ejector rod to the cover plate; the length of the outer layer pipe is longer than the length of the ejector rod and shorter than the length of the ejector rod plus the length from the ejector rod to the cover plate.
As a preferable technical scheme of the application, a surrounding air bag is arranged between the drug coating and the pipe body, the surrounding air bag is connected with an air inflation pipe, and the air inflation pipe is used for inflating the surrounding air bag to expand the surrounding air bag, so that the drug coating outside the surrounding air bag is enlarged.
As a preferable technical scheme of the application, the medicine coating layer consists of a plurality of dressing pieces, the dressing pieces are uniformly distributed around the outer side of the surrounding air bag, the dressing pieces comprise a fixed end and a free end, the fixed end is one end of the dressing piece close to the cylinder head, the fixed end is connected with the surrounding air bag, the rest positions of the dressing pieces are the free ends, and the free ends are not connected with the surrounding air bag.
As a preferable technical scheme of the application, the outer side of the surrounding air bag is also provided with a plurality of protruding air bags, the positions of the protruding air bags are arranged corresponding to the dressing piece, so that one protruding air bag is arranged below each dressing piece, the surrounding air bag is communicated with the protruding air bag, and when the surrounding air bag is inflated, the protruding air bag is inflated after being inflated, so that the dressing piece above the protruding air bag protrudes towards the direction perpendicular to the surrounding air bag.
As a preferable technical scheme of the application, the air valve is arranged on the air charging pipe, and the air valve can control the escape speed of the air in the surrounding air bag through the air valve.
As the preferable technical scheme of the application, the shape of the pipe body is changeable, the shapes of the ejector rod and the top surface are unchanged, and the ejector rod is detachably connected with the pipe body.
Compared with the prior art, the application has the beneficial effects that:
1. the tube body is attached to the cavity of the patient along with the tube body after the tube head enters the cavity together, the medicine coating layer surrounding the outer side of the tube body is attached to the cavity of the patient, the medicine coating layer can be contacted with the cavity of the patient for a long time after absorbing the medicine liquid immersed in the first through hole, the medicine liquid can act on an affected part of the cavity for a long time, the medicine coating layer surrounds the tube body, the area is large, the medicine liquid can be uniformly coated on the side wall of the cavity, excessive shrinkage of the cavity caused by the fact that the cavity is stimulated is avoided, and therefore the medicine cannot accurately reach a target position, or the medicine can be extruded out by the shrunk cavity, and the problems that the medicine is difficult to maintain in the cavity and is wasted and the curative effect is not ideal are solved; in the use process, the cylinder head is connected with the pipe body, the cylinder head is aligned to the orifice of a cavity of a patient, the ejector rod enters the first cavity to be abutted against the cylinder head, force is applied to push the cylinder head into the cavity, after the cylinder head stretches into a proper position, the medicine coating is provided with medicine liquid through the first through hole, the medicine liquid permeates the medicine coating, the medicine coating is attached to the side wall of the cavity, at the moment, the pipe body can be rotated to drive the medicine coating to rotate, and the medicine liquid is uniformly smeared on the wall of the cavity;
2. Considering that the medicine coating needs to be soaked and applied on the wall of the cavity for a long time, the medicine coating is made of a material with a space gap and capable of storing medicine liquid, the friction coefficient of the material is larger, a larger friction force is easily generated between the medicine coating and the wall of the cavity, the ejector rod needs to exert a larger force to push the cylinder head connected with the pipe body into the cavity, therefore, in the embodiment, a circle of smoothing layer surrounding the medicine coating is further arranged, the outer diameter of the smoothing layer is smaller than or equal to the outer diameter of the cylinder head, the smooth layer is made of a smooth material like the cylinder head, the friction between the cylinder head and the pipe body is effectively reduced, the cylinder head and the pipe body are easier to enter the cavity, the feeling of a patient is more comfortable, the smoothing layer is taken out after the medicine coating reaches a proper position, the medicine coating is exposed and is applied on the cavity, and the smoothing layer is made of a waterproof material, so that a waterproof interlayer is formed between the smoothing layer and the pipe body, the medicine coating is positioned in the waterproof interlayer, the medicine coating is not soaked in the cavity, the medicine liquid is prevented from being absorbed by the liquid until the medicine is absorbed by the wall of the cavity, and the medicine is prevented from being absorbed by the wall; in the use process, the smoothing layer is arranged outside the medicine coating layer, after the ejector rod pushes the tube head into the cavity, the medicine coating layer can not absorb liquid on the wall of the cavity when the tube body can easily enter the cavity, so that the absorbed liquid amount is reduced, the first through hole and the second through hole are arranged on the abutting surface, the medicine coating layer starts to soak medicine, medical staff can judge whether the medicine is completely soaked or not by observing the medicine soaking condition far away from the medicine coating layer, after the medicine soaking is completed, the smoothing layer is taken down, the medicine coating layer fully soaked at the moment is contacted with the wall of the cavity, the tube body can be more easily arranged into the cavity, the medicine coating layer can not absorb liquid on the wall of the cavity, the absorbed liquid amount is reduced, the second through hole enables the liquid to enter the second cavity in the tube head, the space of the second cavity is smaller than the tube body, the medicine soaking condition is stored relatively, and the cost of the tube body is reduced relatively, and the liquid is reduced in the side wall of the tube body is reduced, and the cost of the tube body is reduced relatively, and the liquid is reduced in the side wall of the tube body is also, and the tube body is thinner than the tube body is designed;
3. The arc-shaped partition plate is arranged in the second cavity, the edge of the arc-shaped partition plate is connected with the inner side edge of the second cavity, so that the arrangement of the arc-shaped partition plate can not affect the first through hole to dip medicines into the medicine coating, the space between the arc-shaped partition plate and the top surface and the abutting surface of the medicine storage cavity is smaller than that of the second cavity, so that medicine liquid is less wasted, meanwhile, the fourth through hole is formed in the top surface, the third through hole is formed in the arc-shaped partition plate, the design is adopted, the liquid inlet pipe can be inserted into the third through hole and then used for injecting cleaning liquid into the liquid storage cavity, the cleaning liquid comprises physiological saline and other liquid which can be used for cleaning the cavity, and the cleaning liquid flows out into the cavity through the fourth through hole, so that the cavity is cleaned before medicine application, the cavity is cleaned, pollution of pollutants to the cavity is reduced, and the medicine effect is better; furthermore, the cover plate is arranged on the third through hole, the cover plate enables the third through hole to be in a normally closed state, the liquid inlet pipe can jack the cover plate, cleaning liquid is injected into the liquid storage cavity, the liquid inlet pipe can be placed in the Chu Yaoqiang and liquid medicine is injected into the medicine storage cavity, so that the design can more conveniently realize that the liquid inlet pipe can convey the cleaning liquid and the liquid medicine, the liquid inlet pipe can conveniently enter and exit the liquid storage cavity, and the liquid storage cavity and the medicine storage cavity are not interfered with each other; still further, the liquid inlet pipe is the inner layer pipe and the outer layer pipe which are mutually attached, the inner layer pipe is inserted into the liquid storage cavity, the outer layer pipe is positioned in the liquid storage cavity, the inner layer pipe is pulled out after cavity cleaning is finished, then liquid medicine is injected into the liquid storage cavity through the outer layer pipe, so that the positions of the inner layer pipe and the outer layer pipe can be determined, and the situation that the liquid medicine is injected into the liquid inlet pipe when the liquid storage cavity is still in due to shielding of a visual field is avoided, so that the liquid medicine is wasted; in the use process, the outer layer pipe and the inner layer pipe are inserted, the inner layer pipe pushes the cover plate open and is positioned in the liquid storage cavity, the outer layer pipe is positioned in the medicine storage cavity, cleaning liquid is injected into the liquid storage cavity through the inner layer pipe, after cavity cleaning is completed, the inner layer pipe is drawn out, at the moment, the cover plate is restored to a normally closed state, and then medicine liquid is injected into the medicine storage cavity through the outer layer pipe;
4. Before the liquid medicine is sent into the cavity wall, the lesion tissues on the inner wall of the cavity can be fully exposed to better compress the medicine effect, in consideration of the fact that the cavity wall is provided with a plurality of folds, the folds are difficult to fully expose, so that the liquid medicine is difficult to be attached to the inner parts of the folds, and the folds in the folds are high-incidence areas of lesions due to poor fluidity, so that before the liquid medicine is sent into the cavity wall, the folds in the cavity are fully exposed to better compress the medicine effect, in the embodiment, an integral surrounding air bag is adopted, after the liquid medicine is soaked in the medicine coating in the cavity, the air bag is inflated through the inflation tube, the volume of the air bag is increased, the medicine coating outside the surrounding air bag is forced to be outwards expanded, the expanded volume further enables the folds in the cavity to be expanded, at the moment, the tube body is rotated, and the folds in the cavity are also easier to be expanded; the inflated surrounding air bag has strength, but is soft, folds in the cavity are unfolded and the cavity is not easily damaged, so that the folded parts in the cavity are exposed, and the inner wall of the part of the cavity is coated with medicine, so that the medicine can act on the cavity of a patient in a larger range, and the time required by the patient in the postoperative recovery process is effectively shortened;
5. Considering that a patient with a diseased cavity may have irregular bulges or depressions in the cavity, such as a bulged polyp and a sunken diverticulum, and during the inflation of the surrounding air bag to drive the drug coating to expand, no matter how the drug coating stretches the wrinkled part, the bulged polyp is difficult to expose due to the extrusion of the drug coating, even the contact surface of the polyp and the cavity wall is more difficult to be acted on by the liquid medicine due to the extrusion of the drug coating, the contact surface of the polyp and the cavity wall comprises the root side of the polyp contacted with the cavity wall, in this embodiment, by arranging a plurality of dressing pieces, a fish scale shape is formed on the surrounding air bag, two use states are included during the use, the movement direction of the dressing piece in the first use state is the direction of the barrel head, such as the process that the drug coating enters the cavity, the moving direction is along the fish scale direction, so that the dressing sheet has a moving trend along the attaching direction of the surrounding air bag, the dressing sheet is attached to the surrounding air bag to move due to the extrusion action of the cavity wall, if the dressing sheet is densely arranged, the dressing sheets are attached to each other at the moment, after the surrounding air bag is inflated, the pipe body moves towards the cavity opening, at the moment, the pipe body is in a second using state, the moving direction in the second using state is the direction of the barrel head towards the dressing sheet, for example, the process that the medicine coating layer exits from the cavity, the moving direction is opposite to the fish scale direction, so that the free end has a moving trend away from the surrounding air bag, the free end is attached to the cavity wall to move instead of being attached to the surrounding air bag, at the moment, the free end is attached to the cavity wall in the moving process of the cavity wall, the free end easily enters the contact surface of the polyp and the cavity wall and the diverticulum, so that the application of the medicine to the root of the polyp and the diverticulum at the side which is not contacted with the medicine coating is realized, and the application range of the medicine is effectively improved;
6. The convex air bags are arranged under each dressing piece, the convex air bags expand along with the expansion of the surrounding air bags, the same amount of gas is injected, the expanding effect on the cavity is better due to the arrangement of the convex air bags, the expanding range is larger, and correspondingly, under the same effect as the expansion, a relatively small amount of gas can be injected into the surrounding air bags due to the arrangement of the convex air bags; meanwhile, as the convex air bag supports the dressing piece, the dressing piece is tightly attached to the wall of the cavity, and the condition that the dressing piece does not enter the contact surface between polyp and the wall of the cavity and the diverticulum due to the mutual adhesion between the dressing pieces or between the dressing piece and the surrounding air bag is avoided;
7. the air valve can control the escape speed of the air in the surrounding air bag through the air valve, that is, medical staff can flexibly select a treatment mode according to the condition of the patient, including that the patient can not take out the pipe body and the cylinder head by himself, the air valve can be completely closed, the medicine applying time is up to the operation of taking out the pipe by the air release of the medical staff, and the medicine applying layer is always attached to the cavity with larger acting force, so that the medicine applying effect is good; and to can get the patient that pipe and/or intracavity pathological change condition are still good by oneself, can be to the gas valve sets up gas escape rate, for example apply medicine time needs 3 hours, then the gas valve will around the gasbag in the gas is put to finish about 3 hours, the patient can take out the pencil by oneself, this kind of mode can be guaranteed the piece gets into polyp and the contact surface of chamber wall and the internal completion of diverticulum are gone up to the medicine, and the gas reduces gradually in the gasbag after the medicine is gone up, and the patient feel is more comfortable, and the patient takes out the pencil by oneself, effectively reduces medical personnel's work load.
8. The tube body is soft in texture and changeable in shape, the ejector rod and the top surface are hard in texture and unchanged in shape, the ejector rod needs to apply force to the tube head, so that the ejector rod needs to be unchanged in shape, the ejector rod is detachably connected with the tube body, the tube body can be fed into the cavity through the ejector rod to finish medicine feeding, the ejector rod can be pulled out in the process of maintaining medicine application of the medicine coating for a long time, the medicine coating can still be attached to the cavity due to the surrounding air bag, and the cavity of a patient can move and bend in a small amplitude after the ejector rod cannot be deformed is pulled out, so that the body feeling effect of the patient is more comfortable.
Drawings
FIG. 1 is a schematic view of the overall structure of an external appearance of a channel drug delivery device;
FIG. 2 is a schematic cross-sectional view of a lane drug delivery device according to one embodiment;
FIG. 3 is an enlarged schematic view of the structure at A;
FIG. 4 is a schematic cross-sectional view of a channel drug delivery device with a smoothing layer;
FIG. 5 is a schematic cross-sectional view of a chamber drug delivery device with a cover closed;
FIG. 6 is a schematic cross-sectional view of a lumen access device with an inlet tube configured as an outer and inner double tube;
FIG. 7 is a schematic top cross-sectional view of a lumen access device with an outer and inner double tube for the inlet tube;
fig. 8 is a schematic cross-sectional view of a lane drug delivery device with a drug coating composed of a plurality of patches.
The marks in the figure are as follows: 1-tube, 11-tube head, 111-top surface, 112-abutment surface, 12-tube body, 13-first cavity, 14-second cavity, 141-arc baffle, 142-liquid storage cavity, 143-medicine storage cavity, 15-first through hole, 16-second through hole, 17-third through hole, 171-cover plate, 18-fourth through hole, 2-ejector pin, 3-medicine coating, 31-dressing piece, 311-fixed end, 312-free end, 4-liquid inlet tube, 41-outer layer tube, 42-inner layer tube, 5-smooth layer, 6-surrounding air bag, 61-protruding air bag, 7-inflation tube, 8-air valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the invention.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, under the condition of no conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the terms "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the inventive product, or an azimuth or a positional relationship conventionally understood by those skilled in the art, such terms are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The cavity medicine supplying device provided in this embodiment includes a tube 1 and a push rod 2, as shown in fig. 1, the tube 1 includes a tube body 12 and a tube head 11 that are connected with each other, a first cavity 13 containing the push rod 2 is provided on an inner side of the tube body 12, one end of the push rod 2 abuts against the tube head 11 through the first cavity 13, the tube head 11 is smooth hemispherical, as shown in fig. 2, the other end of the push rod 2 applies force to push the tube head 11 into the cavity, the cavity includes a rectum and a vagina of a human body, the tube head 11 drives the tube body 12 to enter the cavity, the medicine coating 3 is disposed around an outer side of the tube body 12 and can absorb medicine liquid, a plurality of first through holes 15 are disposed on the tube 1, as shown in fig. 3, the medicine liquid enters the tube 1 through the liquid inlet tube 4, and then passes through the first through holes 15 to enter the medicine coating 3, in all the drawings, the first through holes 15 and the fourth through holes 18 can show a relatively clear size of the medicine liquid in the drawings, and the size of the medicine liquid can be obtained in the drawings.
In this embodiment, the barrel head 11 is a smooth hemisphere, so that the barrel head 2 can be conveniently pushed into the cavity after applying a force, the smooth cambered surface can reduce uncomfortable feeling generated when the drug supply device enters the cavity of a patient, the pipe body 12 enters the cavity together with the barrel head 11, the drug coating 3 surrounding the outer side of the pipe body 12 is attached to the cavity of the patient, the drug coating 3 absorbs the drug liquid immersed in the first through hole 15, the drug coating 3 can be in long-time contact with the cavity of the patient, the drug liquid can act on the affected part of the cavity for a long time, the drug coating 3 surrounds the pipe body 12, the area is large, the drug liquid can be uniformly coated on the side wall of the cavity, and the problem that the drug cannot accurately reach the target part due to the excessive shrinkage of the cavity caused by the stimulus of the cavity is avoided, or the drug can be extruded out by the shrunk cavity, and the problem that the drug is difficult to maintain in the cavity, resulting in drug waste and poor curative effect is solved;
in the use process, the barrel head 11 is connected with the pipe body 12, the barrel head 11 is aligned to the orifice of a cavity of a patient, the ejector rod 2 enters the first cavity 13 to be abutted against the barrel head 11, the barrel head 11 is pushed into the cavity by force application, after the barrel head 11 stretches into a proper position, the medicine coating 3 is provided with medicine liquid through the first through hole 15, the medicine liquid permeates the medicine coating 3, the medicine coating 3 is attached to the side wall of the cavity, at the moment, the pipe body 12 can be rotated to drive the medicine coating 3 to rotate, and the medicine liquid is uniformly smeared on the wall of the cavity.
As a preferred technical solution of the present application, a smoothing layer 5 is further disposed on the outer side of the drug coating layer 3, the outer diameter of the smoothing layer 5 is smaller than or equal to the outer diameter of the barrel head 11, the outer side of the smoothing layer 5 is made of a smooth material, one end of the smoothing layer 5 is detachably connected with the barrel head 11, the length of the other end exceeds the pipe body 12, the smoothing layer 5 is made of a waterproof material, a waterproof interlayer is formed between the smoothing layer 5 and the pipe body 12, a second cavity 14 capable of containing liquid is formed in the barrel head 11, as shown in fig. 4, the barrel head 11 includes a top surface 111 contacting with a cavity and an abutting surface 112 contacting with the barrel head 2, the liquid inlet pipe 4 is disposed in the barrel head 2, the abutting surface 112 is provided with a second through hole 16, the liquid medicine is injected into the second cavity 14 through the second through hole 16, and the first through hole 15 is disposed at a position corresponding to the waterproof interlayer 112, so that the liquid medicine enters the waterproof interlayer 15 through the first through hole 15.
In the basic embodiment, only the liquid medicine enters the tube 1 through the liquid inlet tube 4 and then enters the drug coating 3 through the first through hole 15, so that the liquid inlet tube 4 is connected with the tube body 12 in fig. 2, and enters the second cavity 14 through the ejector rod 2 in fig. 4-8, and the tube body 12 and the second cavity belong to the tube 1, so that the liquid inlet tube 4 in fig. 2 is one embodiment, the liquid inlet tube 4 in fig. 4-8 is another embodiment, but the liquid inlet tube 4 in the basic embodiment enters the tube 1 and then enters the drug coating 3 through the first through hole 15, and the application of the liquid inlet tube 4 in different embodiments is the same; the same position of the first through hole 15 in fig. 2 does not correspond to the position in fig. 4-8, and is in accordance with the above description a different embodiment;
It should be noted that, in fig. 2, the tube body 12 is connected to the liquid inlet tube 4, and the liquid needs to enter the transition area of the drug coating 3 through the first through hole 15 after entering from the liquid inlet tube 4, so that the tube body 12 in fig. 2 is a hollow arrangement with larger volume, while in a further embodiment, the liquid in the liquid inlet tube 4 does not enter the first through hole 15 through the tube body 12 any more, so that the tube body 12 in fig. 4-8 is a solid arrangement with smaller volume, and the drug coating 3 with thicker volume can be placed, so that the soaked liquid is more;
in the embodiment, considering that the drug coating 3 needs to be soaked and applied on the wall of the cavity for a long time, the drug coating 3 is made of a material with a space gap for storing the drug solution, and the friction coefficient of the material is larger, so that a larger friction force is easily generated between the material and the wall of the cavity, and the ejector rod 2 needs to exert a larger force to push the barrel head 11 connected with the pipe body 12 into the cavity, therefore, in the embodiment, a circle of smoothing layer 5 surrounding the drug coating 3 is further arranged, the outer diameter of the smoothing layer 5 is smaller than or equal to the outer diameter of the barrel head 11, a smooth material is adopted as the material of the barrel head 11, friction between the material and the cavity is effectively reduced, so that the barrel head 11 and the pipe body 12 are easier to enter the cavity, a patient feel more comfortable, after the material reaches a proper position, the smoothing layer 5 is taken out, the drug coating 3 is exposed and begins to be coated with the cavity, and the smoothing layer 5 is further made of a waterproof material, so that the water-proof material is used for forming the layer 5, and the liquid is not absorbed by the drug coating 3, and the liquid is prevented from being absorbed by the interlayer 3, and the drug solution is not absorbed by the wall of the interlayer 3, and the drug coating 3 is prevented from being absorbed by the wall;
In the use process, the smooth layer 5 is arranged outside the medicine coating 3, after the cylinder head 11 is jacked into the cavity, the ejector rod 2 is designed to enable the medicine coating 3 to not absorb liquid on the cavity wall while enabling the pipe body 12 to enter the cavity more easily, so that the amount of absorbed liquid is reduced, the first through hole 15 and the second through hole 16 are arranged on the abutting surface 112, the second through hole 16 enables the medicine to enter the second cavity 14 inside the cylinder head 11, whether the medicine is immersed completely is judged by observing the medicine immersing condition far away from the medicine coating 3, after the medicine immersing is completed, the smooth layer 5 is taken down, at this time, the medicine coating 3 which is immersed fully is enabled to be in contact with the cavity wall again, and meanwhile, the medicine coating 3 cannot absorb liquid on the cavity wall, so that the amount of absorbed liquid is reduced, the second through hole 16 enables the medicine to enter the second cavity 14 inside the cylinder head 11, the second cavity 14 is arranged on the side wall, and the second cavity 12 is arranged in a small way, and the side wall of the pipe body 12 is thinner than the first cavity 12, and the side wall is arranged in the pipe body 12, so that the cost of the pipe body 12 is reduced.
As a preferred technical solution of the present application, an arc-shaped partition board 141 is further disposed in the second cavity 14, an edge of the arc-shaped partition board 141 is connected with an edge of the second cavity 14, the arc-shaped partition board 141 divides the second cavity 14 into a liquid storage cavity 142 and a medicine storage cavity 143, the liquid storage cavity 142 for storing cleaning liquid is formed between the arc-shaped partition board 141 and the top surface 111 of the cartridge head 11, the medicine storage cavity 143 for storing medicine is formed between the arc-shaped partition board 141 and the abutting surface 112 of the cartridge head 11, a third through hole 17 is disposed at a position of the arc-shaped partition board 141 corresponding to the second through hole 16, a diameter of the third through hole 17 is identical to an outer diameter of the liquid inlet pipe 4, the top surface 111 is provided with a plurality of fourth through holes 18, and the fourth through holes 18 are used for discharging the liquid in the liquid storage cavity 142 to a cavity.
As a preferred solution of the present application, a cover plate 171 is further disposed at the edge of the third through hole 17, and the cover plate 171 is hinged to the arc-shaped partition 141 and keeps normally closed to the third through hole 17, as shown in fig. 5, the liquid inlet pipe 4 may jack the cover plate 171 through the third through hole 17 into the liquid storage cavity 142.
As a preferable solution of the present application, the liquid inlet pipe 4 is an inner layer pipe 42 and an outer layer pipe 41 which are mutually attached, as shown in fig. 6 and 7, the inner layer pipe 42 is used for conveying normal saline, the outer layer pipe 41 is used for conveying liquid medicine, the inner layer pipe 42 can be drawn out from the outer layer pipe 41, and the length of the inner layer pipe 42 is longer than the length from the ejector rod 2 to the length plus the length from the ejector rod 2 to the cover plate 171; the length of the outer tube 41 is longer than the length of the push rod 2 and shorter than the length of the push rod 2 plus the length of the push rod 2 to the cover plate 171.
In this embodiment, the arc-shaped partition board 141 is disposed in the second cavity 14, the edge of the arc-shaped partition board 141 is connected with the inner edge of the second cavity 14, so that the arrangement of the arc-shaped partition board 141 does not affect the immersion of the first through hole 15 into the drug coating 3, the space between the arc-shaped partition board 141 and the top surface 111 and the abutting surface 112 is smaller than that of the second cavity 14, the waste of the drug storage cavity 143 is less, meanwhile, the fourth through hole 18 is disposed on the top surface 111, the third through hole 17 is disposed on the arc-shaped partition board 141, so that the cleaning liquid can be injected into the liquid storage cavity 142 after the liquid inlet pipe 4 is inserted into the third through hole 17, the cleaning liquid includes physiological saline and other liquid which can be used for cleaning the cavity, and the cleaning liquid flows out into the cavity through the fourth through hole 18, so that the cavity is cleaned before the drug application, the pollution of the drug storage cavity is reduced, and the drug effect is better; further, the cover plate 171 is disposed on the third through hole 17, the cover plate 171 is in a normally closed state with the third through hole 17, the liquid inlet pipe 4 can push the cover plate 171 open, wash liquid can be injected into the liquid storage cavity 142, the liquid inlet pipe 4 can be placed in the liquid storage cavity 143, and liquid medicine can be injected into the liquid storage cavity 143, so that the design can more conveniently realize that the liquid inlet pipe 4 can convey wash liquid and liquid medicine, the liquid inlet pipe 4 can conveniently enter and exit the liquid storage cavity 142, and the liquid storage cavity 142 and the liquid storage cavity 143 are not interfered with each other; still further, will intake pipe 4 be mutual laminating inlayer pipe 42 with outer pipe 41, inlayer pipe 42 inserts stock solution chamber 142, outer pipe 41 is located stock solution chamber 143, cavity cleaning is accomplished the back and is taken out inlayer pipe 42, to through outer pipe 41 to stock solution chamber 143 pours into the liquid medicine into, so the design can inlayer pipe 42 with outer pipe 41 position determination avoids leading to because the field of vision shelters from intake pipe 4 still is in the condition of pouring into the liquid medicine when in stock solution chamber 142, causes the liquid medicine extravagant.
In the use process, the outer layer tube 41 and the inner layer tube 42 are inserted, the inner layer tube 42 pushes the cover plate 171 open and is positioned in the liquid storage cavity 142, the outer layer tube 41 is positioned in the medicine storage cavity 143, cleaning liquid is firstly injected into the liquid storage cavity 142 through the inner layer tube 42, after cavity cleaning is completed, the inner layer tube 42 is drawn out, at this time, the cover plate 171 is restored to a normally closed state, and then medicine liquid is injected into the medicine storage cavity 143 through the outer layer tube 41.
As a preferable technical scheme of the application, a surrounding air bag 6 is arranged between the drug coating 3 and the pipe body 12, the surrounding air bag 6 is connected with an air inflation pipe 7, the air inflation pipe 7 inflates the surrounding air bag 6, so that the surrounding air bag 6 is inflated, and the drug coating 3 outside the surrounding air bag 6 is enlarged.
In this embodiment, before the liquid medicine is sent into the wall of the cavity, the lesion tissue of the inner wall of the cavity can be fully exposed to make the effect of applying medicine better, and considering that the wall of the cavity is provided with a plurality of folds, the folds are difficult to be fully exposed, so that the liquid medicine is difficult to be attached to the inner parts of the folds, and the folds in the folds are high-incidence areas of lesions due to poor fluidity, so that before the liquid medicine is sent into the wall of the cavity, the effect of applying medicine is better by fully exposing the folds in the cavity, therefore, in this embodiment, an integral surrounding air bag 6 is adopted, after the liquid medicine is immersed in the medicine coating 3 of the cavity, the air bag is inflated through the inflation tube 7, the volume of the air bag is increased to force the medicine coating 3 outside the surrounding air bag 6 to be outwards expanded, the folds in the cavity are further expanded, and at the moment, the folds in the cavity are rotated, and the folds in the cavity are also easier to be expanded; the inflated surrounding air bag 6 has strength, but is soft, the folds in the cavity are unfolded, the cavity is not easily damaged, the folded parts in the cavity are exposed, and the inner wall of the cavity is coated with the medicine, so that the medicine can act on the cavity of a patient in a larger range, and the time required by the patient in the postoperative recovery process is effectively shortened.
As a preferred technical solution of the present application, the dressing layer 3 is composed of a plurality of dressing pieces 31, the dressing pieces 31 are uniformly arranged around the outer side of the surrounding air bag 6, the dressing pieces 31 include a fixed end 311 and a free end 312, the fixed end is one end of the dressing piece 31 close to the barrel head 11, the fixed end 311 is connected with the surrounding air bag 6, the rest positions of the dressing pieces 31 are the free ends 312, and the free ends 312 are not connected with the surrounding air bag 6, so that the dressing layer 3 is integrally formed into a fish scale shape, as shown in fig. 8.
In this embodiment, in consideration of the fact that there may be irregular protrusions or depressions in the cavity, such as protruding polyps and recessed diverticulum, of a patient suffering from a cavity, and in the process of inflating the surrounding air bag 6 to expand the dressing 3, no matter how the dressing 3 is used to open the fold part, the protruding polyps are difficult to expose due to the extrusion of the dressing 3, or even the contact surface of the polyps and the cavity wall is difficult to be acted on due to the extrusion of the dressing 3, and even the contact surface of the polyps and the cavity wall, including the root side of the polyps contacting the cavity wall, in this embodiment, by providing a plurality of dressing pieces 31, a fish scale shape is formed on the surrounding air bag 6, and in use, two use states are included, the movement direction in the first use state is the direction of the dressing pieces 31 toward the cartridge head 11, for example, the dressing 3 enters the cavity, the moving direction is along the fish scale direction, so that the dressing 31 has a moving trend along the attaching direction of the dressing 3 to the surrounding air bag 6, the dressing 31 is attached to the surrounding air bag 6 and moves due to the extrusion action of the cavity wall, if the dressing 31 is densely arranged, the dressing 31 is attached to each other, the pipe body 12 moves towards the cavity opening after the surrounding air bag 6 is inflated, the moving direction in the second using state is the moving direction of the barrel head 11 towards the dressing 31, for example, the moving direction is opposite to the fish scale direction, so that the free end 312 has a moving trend along the direction away from the surrounding air bag 6, the free end 312 is attached to the cavity wall and moves not to the surrounding air bag 6, at this time, during the movement process that the free end 312 is attached to the wall of the cavity, the free end 312 easily enters the contact surface between the polyp and the wall of the cavity and the diverticulum, so as to realize the application of the medicine to the root of the polyp and the diverticulum which are not contacted with the medicine coating 3, and effectively improve the application range.
As a preferable technical scheme of the present application, a plurality of protruding air bags 61 are further disposed on the outer side of the surrounding air bag 6, the protruding air bags 61 are disposed corresponding to the dressing pieces 31, one protruding air bag 61 is disposed under each dressing piece 31, the surrounding air bag 6 is communicated with the protruding air bags 61, and when the surrounding air bag 6 is inflated, air is also introduced into the protruding air bags 61 and then inflated, so that the dressing piece 31 above the protruding air bags 61 protrudes in a direction perpendicular to the surrounding air bag 6.
In this embodiment, the protruding air bags 61 are disposed under each dressing piece 31, the protruding air bags 61 expand along with the expansion of the surrounding air bags 6, the same amount of air is injected, the expanding effect on the cavity is better due to the arrangement of the protruding air bags 61, the expanding range is larger, and correspondingly, under the same effect as the expansion, a relatively small amount of air can be injected into the surrounding air bags 6 due to the arrangement of the protruding air bags 61; at the same time, the convex air bag 61 supports the dressing 31, so that the dressing 31 is tightly attached to the wall of the cavity, and the condition that the dressing 31 does not enter the contact surface between polyp and the wall of the cavity and the diverticulum caused by mutual adhesion between the dressing 31 or between the dressing 31 and the surrounding air bag 6 is avoided.
As a preferred technical scheme of the application, the air valve 8 is arranged on the air charging pipe 7, and the air valve 8 can control the escape speed of the air in the surrounding air bag 6 through the air valve 8.
In this embodiment, since the surrounding air bag 6 is inflated after being inflated, the drug coating 3 is tightly attached to the wall of the cavity, and meanwhile, since the volume is increased, it is difficult to directly take out the tube body 12 and the tube head 11, the air valve 8 can control the escape speed of the air in the surrounding air bag 6 through the air valve 8, that is, the medical staff can flexibly select the treatment mode according to the situation of the patient, including that the patient cannot take out the tube body 12 and the tube head 11 by himself, the air valve 8 can be completely closed, and the drug coating 3 is attached to the cavity with a larger force all the time until the medical staff deflates to take out the tube, so that the drug coating effect is good; for patients with good pathological changes in the self-taking tube and/or the cavity, the gas escape speed can be set for the gas valve 8, for example, the medicine applying time is 3 hours, the gas valve 8 can put the gas in the surrounding air bag 6 around 3 hours, the patient can take out the medicine tube by self, in this way, the patient can be ensured to get into the contact surface of the polyp and the cavity wall and finish medicine applying in the diverticulum, the gas in the air bag is gradually reduced after medicine applying, the body feeling of the patient is more comfortable, the patient can take out the medicine tube by self, and the workload of medical staff is effectively reduced.
As a preferable solution of the present application, the shape of the pipe body 12 is changeable, the shapes of the ejector rod 2 and the top surface 111 are unchanged, and the ejector rod 2 and the pipe body 12 are detachably connected.
In this embodiment, the tube body 12 has a soft texture and a changeable shape, the textures of the ejector rod 2 and the top surface 111 are hard, the shape is unchanged, the ejector rod 2 needs to apply force to the tube head 11, so that the shape of the ejector rod 2 also needs to be unchanged, the ejector rod 2 and the tube body 12 are detachably connected, and in such a design, the ejector rod 2 can be pulled out when the ejector rod 2 sends the tube body 12 into the cavity, and the drug coating 3 can be maintained for a long time in the drug coating process, so that the drug coating 3 can still be attached to the cavity due to the existence of the surrounding air bag 6, and after the ejector rod 2 which cannot be deformed is pulled out, the cavity of a patient can be moved and bent by a small extent at this time, so that the body feel effect of the patient is more comfortable.
The above embodiments are only for illustrating the present application and not for limiting the technical solutions described in the present application, and although the present application has been described in detail in the present specification with reference to the above embodiments, the present application is not limited to the above specific embodiments, and thus any modifications or equivalent substitutions are made to the present application; all technical solutions and modifications thereof that do not depart from the spirit and scope of the application are intended to be included in the scope of the appended claims.
Claims (9)
1. The utility model provides a cavity way medicine supply device which is characterized in that the cavity way medicine supply device comprises a pipe barrel (1) and a mandril (2), the pipe barrel (1) comprises a pipe body (12) and a pipe head (11) which are connected with each other, the inner side of the pipe body (12) is a first cavity (13) which is used for accommodating the mandril (2), one end of the mandril (2) is abutted with the pipe head (11) through the first cavity (13), the pipe head (11) is smooth hemispherical, the other end of the mandril (2) applies force to push the pipe head (11) into the cavity way, the pipe body (12) is driven by the pipe head (11) to enter the cavity way, the medicine coating (3) surrounds the outer side of the pipe body (12) and can absorb medicine liquid, the pipe barrel (1) is provided with a plurality of first through holes (15), the medicine liquid enters the pipe barrel (1) through the first through holes (15) and is immersed in the medicine coating (3), the outer side of the medicine coating (3) is also provided with a smooth hemispherical layer (5), the length of the other end of the pipe head (2) is equal to the smooth layer (5), the length of the smooth layer (5) is equal to the outer diameter of the smooth layer (5) and the smooth layer (11) is equal to the outer diameter of the smooth layer (5), the utility model discloses a waterproof structure, including a tube body (12) and a smooth layer (5), a tube head (11) is made to smooth layer (5) adoption waterproof material makes smooth layer (5) with form waterproof intermediate layer between tube body (12), the inside of tube head (11) forms can hold second cavity (14) of liquid, tube head (11) include top surface (111) and contact face (112) with ejector pin (2) of cavity way contact, feed liquor pipe (4) set up inside ejector pin (2), contact face (112) are provided with second through-hole (16), feed liquor pipe (4) pass through second through-hole (16) to second cavity (14) are poured into the liquid medicine, first through-hole (15) set up the position that contact face (112) corresponds waterproof intermediate layer makes the liquid medicine get into waterproof intermediate layer through first through-hole (15).
2. A lane drug delivery device as in claim 1 wherein: still be provided with arc baffle (141) in second cavity (14), the edge of arc baffle (141) with the marginal connection of second cavity (14), arc baffle (141) will second cavity (14) are cut apart into stock solution chamber (142) and are stored up medicine chamber (143), arc baffle (141) with form between top surface (111) of section of thick bamboo head (11) be used for storing cleaning liquid stock solution chamber (142), arc baffle (141) with form between butt face (112) of section of thick bamboo head (11) be used for storing up medicine stock solution chamber (143), arc baffle (141) correspond the position of second through-hole (16) is provided with third through-hole (17), third through-hole (17) diameter with feed liquor pipe (4) external diameter is unanimous, top surface (111) are provided with a plurality of fourth through-holes (18), fourth through-hole (18) are used for with liquid in stock solution chamber (142) is arranged to the chamber.
3. A lane drug delivery device as in claim 2 wherein: the edge of the third through hole (17) is also provided with a cover plate (171), the cover plate (171) is hinged with the arc-shaped partition plate (141) and keeps normally closed to the third through hole (17), and the liquid inlet pipe (4) can jack the cover plate (171) to enter the liquid storage cavity (142) through the third through hole (17).
4. A lane drug delivery device as in claim 3 wherein: the liquid inlet pipe (4) is an inner pipe (42) and an outer pipe (41) which are mutually attached, the inner pipe (42) is used for conveying normal saline, the outer pipe (41) is used for conveying liquid medicine, the inner pipe (42) can be pulled out of the outer pipe (41), and the length of the inner pipe (42) is longer than the length from the ejector rod (2) to the cover plate (171) plus the length from the ejector rod (2); the length of the outer layer tube (41) is longer than the length of the ejector rod (2) and shorter than the length of the ejector rod (2) plus the length of the ejector rod (2) to the cover plate (171).
5. A lane drug delivery device as in claim 4 wherein: a surrounding air bag (6) is further arranged between the drug coating layer (3) and the pipe body (12), the surrounding air bag (6) is connected with an air inflation pipe (7), the air inflation pipe (7) inflates the surrounding air bag (6) to expand the surrounding air bag (6), and the drug coating layer (3) on the outer side of the surrounding air bag (6) is enlarged.
6. A lane drug delivery device according to claim 5, wherein: the medicine coating layer (3) is composed of a plurality of dressing pieces (31), the dressing pieces (31) are uniformly distributed around the outer side of the surrounding air bag (6), each dressing piece (31) comprises a fixed end (311) and a free end (312), each fixed end is one end, close to the corresponding barrel head (11), of each dressing piece (31), each fixed end (311) is connected with the surrounding air bag (6), the free ends (312) are arranged at the rest positions of the dressing pieces (31) except the fixed ends (311), and the free ends (312) are not connected with the surrounding air bag (6).
7. A lane drug delivery device according to claim 6, wherein: the utility model discloses a dressing piece, including dressing piece (31) and around gasbag (6), including dressing piece (31) and dressing piece, the outside of encircleing gasbag (6) still is provided with a plurality of protrusion gasbag (61), the position of protrusion gasbag (61) corresponds dressing piece (31) setting up, make each dressing piece (31) below has one protrusion gasbag (61), encircle gasbag (6) with protrusion gasbag (61) intercommunication, when encircleing gasbag (6) in inflation, also let in gas in protrusion gasbag (61) and expand, make dressing piece (31) of protrusion gasbag (61) top to perpendicular with encircle direction of gasbag (6) arch.
8. A lane drug delivery device as in any of claims 5-7 wherein: an air valve (8) is arranged on the air charging pipe (7), and the air valve (8) can control the escape speed of air in the surrounding air bag (6) through the air valve (8).
9. A lane drug delivery device as in any of claims 1-7 wherein: the shape of the pipe body (12) is changeable, the shapes of the ejector rod (2) and the top surface (111) are unchanged, and the ejector rod (2) is detachably connected with the pipe body (12).
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| CN202311087662.2A CN116808415B (en) | 2023-08-28 | 2023-08-28 | Cavity medicine supply device |
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| CN202311087662.2A CN116808415B (en) | 2023-08-28 | 2023-08-28 | Cavity medicine supply device |
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| CN116808415B true CN116808415B (en) | 2023-11-07 |
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| CN116808415A (en) | 2023-09-29 |
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