CN112807554B - Anorectal administration pressurizing device and anorectal auxiliary treatment equipment - Google Patents

Abstract

The invention provides a pressurizing device for anorectal drug administration, which comprises an elastic hollow balloon body, the balloon body is provided with a gas nozzle for injecting compressed air, the front end of the balloon body is provided with a pressurizing tube embedded in the balloon body, An arc-shaped chute is arranged inside the bladder wall at the front end of the body, the charging tube runs through the arc-shaped chute, and an arc-shaped strip slide plate which is matched with it is slidably fitted in the arc-shaped chute. A through hole is opened, one end of the slide plate is connected with the arc-shaped spring in the arc-shaped chute, and the other end is connected with a rotating rod extending into the bag, the rotating rod is hinged on the hinge shaft in the bag, and the hinge shaft is located in the At the center of the slide plate, one end of the rotating rod away from the slide plate is hinged with a vertically arranged pressing rod, one end of the pressing rod is hinged with the rotating rod, and the other end passes through the bag wall and protrudes out of the bag body. The pressurizing device can make the medical staff truly feel the pressure change, is safe, reliable and convenient to carry.

Description

A pressurizing device for anorectal drug delivery and anorectal auxiliary therapy equipment

technical field

The invention relates to the technical field of anorectal treatment, in particular to a pressurizing device for anorectal drug delivery.

Background technique

In medical applications such as the use of applicators for anorectal treatment, there is a type of auxiliary equipment, which is mainly used to inflate and pressurize medical devices, but not as power output, but only to elastically expand and deform to achieve expected Fixed or contact therapeutic actions and positions. At present, for such pressurizing devices or inflatable equipment, most of them are general-purpose compressed air sources with pressure regulating valves. Although this compressed air source can adjust the pressure and reduce it to the clinically required pressure, its adjustment is often done through Therefore, a small air compressor, a series of air pipes and the corresponding pressure regulating valve are necessary. When using, a series of supporting equipment must be carried. However, clinically, unlike industrial compressed air, the pressure requirement of the compressed air required in clinical treatment is actually relatively small. In many cases, it is just to fill a certain amount of air to fill medical equipment, and it is not convenient to carry a large number of supporting equipment. And the biggest problem is that when these pressure regulating valves are used, the operator cannot actually perceive the pressure and airflow objectively and in real time. It can only be determined by mechanical, electrical instruments or the position of the valve handle, which is easy to be used clinically, such as It will cause violent expansion of the drug delivery device inserted into the anorectum, damage the patient's anorectal wall or cause serious discomfort to the patient.

SUMMARY OF THE INVENTION

The problem to be solved by the present invention is to provide a pressurizing device for anorectal drug delivery in view of the above-mentioned deficiencies in the prior art, which solves the problem that the medical staff in the prior art cannot truly perceive the stuffing in the anorectal drug administration. The problem of low pressure when the anorectal drug delivery device is inflated and inflated, and also solves the problem of inconvenience in carrying and using the inflatable device.

To achieve the above object, specifically, the technical scheme adopted in the present invention is as follows:

A pressurizing device for anorectal drug delivery, comprising a compressible hollow balloon body, the balloon body is provided with a gas nozzle for injecting compressed air flow, the front end of the balloon body has a pressurizing tube embedded in the balloon body, and the front end side of the balloon body An arc-shaped chute is arranged inside the bag wall, the charging tube runs through the arc-shaped chute, and a strip-shaped slide plate with the same arc shape is slidably fitted in the arc-shaped chute. Through the hole, one end of the sliding plate is connected with the arc-shaped spring in the arc-shaped chute, and the other end is connected with a rotating rod extending into the bag body, the rotating rod is hinged on the hinge shaft in the bag body, and the hinge shaft is located at the center of the slide plate At one end of the rotating rod away from the sliding plate, a vertically arranged pressure rod is hinged, one end of the pressure rod is hinged with the rotating rod, and the other end passes through the bag wall and extends out of the bag body, and the pressure rod and the bag body slide between Sealing fit; the pressure rod is connected to the inner wall of the bladder through a return spring to realize the return of the pressure rod in a non-inflated state, or/and the rotation rod and the hinge shaft are connected by a torsion spring, which drives the non-inflated state The lower lever is reset.

Further, the bag body is provided with an air nozzle with a basketball air hole structure.

Further, a one-way air intake component is installed at the rear end of the bag body, and the one-way air intake component includes an active plate, a driving rod, a gate, a guide rod, a top support spring, a fixed rod and a pressure inlet pipe, The pressure inlet pipe is inserted through the rear end of the bag body, and the active plate is fixedly connected to the side of the rotating rod toward the rear end of the bag body; one end of the driving rod is in smooth contact with the active plate, and the other end is connected The gate is provided with a pair of guide rods spaced apart and arranged in parallel at one end of the gate away from the driving rod. The two guide rods are respectively inserted into the pipe wall of the pressure inlet pipe and can slide freely in the pipe wall. The top support spring is also provided between the two guide rods. One end of the top support spring is connected to the end of the gate away from the drive rod, and the other end is connected to the fixed rod fixed in the pressure inlet pipe. In the state, the top support spring pushes the gate away from the port of the pressure inlet pipe; when the pressure rod is pressed down to drive the rotating rod to rotate, the active plate squeezes and pushes the drive rod to move axially, so that the gate will enter The port of the pressure tube is closed, and the rotating rod drives the sliding plate to slide to the position where the through hole is coaxial with the pressure charging tube.

Further, the bag body is also provided with a connecting hose, and the connecting hose is communicated with the low-pressure air source through a leather tube, and an on-off valve is arranged on the leather tube.

Based on the aforementioned pressurizing device for anorectal drug delivery, the present invention also proposes an anorectal auxiliary therapy device, which includes the present invention's pressurizing device for anorectal drug delivery and a medicinal infusion device, wherein the medicinal infusion device includes a device that can be inserted into the anorectal cavity. The expansion body, the expansion body includes an outer surface layer and an inner core body, and the surface layer has elasticity, and there are pores between the surface layer and the core body, and the pores are used to inflate air to expand the surface layer and make the expansion body become larger; The inside of the core body is provided with a channel for the inflow of external medicinal liquid, and the outlet end of the channel is communicated with the dosing hole opened on the surface layer. A cofferdam is formed protruding from the surface of the expansion body.

Compared with the prior art, the present invention has the following beneficial effects: the present invention adopts the bag body for air pre-storage, and when the pressing rod is pressed, the sliding plate is tilted in the form of a lever motion, so that the through hole of the sliding plate is the same as the charging pipe. The shaft can realize communication and inflate external medical devices such as anorectal drug delivery devices. The structure is compact, simple but ingenious, and easy to carry around. It is very suitable for clinical inspections by medical staff and is dedicated to clinical treatment. Of course, it can also be used. It can be applied to other medical auxiliary treatment devices other than anorectal drug delivery devices. The anorectal auxiliary therapy equipment provided by the present invention, on the basis of the aforementioned convenience for inflation and pressure, introduces a drug infusion device that is firmly placed in the patient's anorectum due to the expansion of the air pressure. At the same time, the drug delivery hole of the device can Compared with the rest, it protrudes more quickly and firstly contacts the inner wall of the anorectum, so that the medicinal liquid is enclosed in the affected area and absorbed in a concentrated manner, and the manual inflation of the capsule allows the medical staff to feel the air pressure at all times, and avoids the uncontrolled air pressure causing the patient to feel uncomfortable or even Accidental damage occurs.

The effects of the present invention include but are not limited to the above effect descriptions. Those skilled in the art can undoubtedly infer other beneficial effects from the technical solutions of the present invention, and the applicant will not describe them in detail.

Description of drawings

FIG. 1 is a schematic structural diagram of an inflator according to one embodiment of the present invention;

Fig. 2 is a partial enlarged view in Fig. 1;

FIG. 3 is an enlarged structural view of the one-way air intake component in FIG. 1;

4 is a schematic structural diagram of a drug delivery device in a specific application of the present invention;

Fig. 5 is a kind of structure enlarged view of the region at I place in Fig. 4;

FIG. 6 is an enlarged view of another structure of the region I in FIG. 4 .

Among them, the front section 1, the medicine outlet hole 101, the bottom spherical surface 102, the rear section 2, the elastic sleeve 3, the bullet 301, the T-shaped protrusion 302, the enclosure 303, the medicine outlet cartridge 304, the deformation washer 305, the annular expansion cavity 4, Trachea 5, infusion tube 6, bladder 7, arc-shaped chute 701, through hole 702, charging tube 8, slide plate 9, arc-shaped spring 10, rotating rod 11, hinge shaft 12, pressure rod 13, return spring 14, Torsion spring 15 , normal anorectal inner wall 16 , anorectal affected area 17 , drive rod 18 , gate 19 , pressure inlet tube 20 , guide rod 21 , top support spring 22 , fixed rod 23 , and active plate 24 .

Detailed ways

In order to make the technical solutions and beneficial effects of the present invention more clearly understood by those skilled in the art, the present invention will be further elaborated below in conjunction with some accompanying drawings and specific embodiments, but the specific embodiments are not limited to the following specific structures:

This embodiment proposes a pressurizing device for anorectal drug delivery, which can be manually inflated to sense the pressure in real time. Dangerous problems can easily arise when malfunctioning. Specifically, the inflatable device of this embodiment is designed according to the following structure: as shown in Figures 1-2, it includes a compressible hollow bladder 7, which can be made of elastic materials according to actual compression conditions. The bladder 7 is provided with a gas nozzle (not shown in the figure) for injecting compressed air. The front end of the bladder 7 has a charging tube 8 embedded in the bladder 7. Of course, the charging tube 8 can be integrated with the bladder 7. forming. An arc-shaped chute 701 is opened inside the bladder wall at the front end side of the bladder body 7, the charging tube 8 runs through the arc-shaped chute 701, and the arc-shaped chute 701 is slidably fitted with a matching arc-shaped chute 701. The strip-shaped sliding plate 9 is provided with a through hole 702 on the sliding plate 9. One end of the sliding plate 9 is connected with the arc-shaped spring 10 in the arc-shaped chute 701, and the other end is connected with the rotating rod 11 extending into the bag body 7. The said The rotating rod 11 is hinged on the hinge shaft 12 in the bag body 7, and the hinge shaft 12 is located at the center of the slide plate 9. The end of the rotating rod 11 away from the slide plate 9 is hinged with a vertically arranged pressing rod 13. The pressing rod 13 One end is hinged with the rotating rod 11 , and the other end extends out of the bag body 7 after passing through the bag wall. The pressing rod 13 is connected to the inner wall of the bag body 7 through the return spring 14 to realize the reset of the pressing rod 13 in a non-inflated state, or/and the rotating rod 11 and the hinge shaft 12 are connected by a torsion spring 15, the torsion spring 15 drives the rotating rod 11 in the non-working state to reset to drive the sliding plate 9 to cut off the air outlet channel in the above-mentioned charging tube 8, that is, the torsion spring 15 and the return spring 14 can be used either or both. In use, the bag body 7 is filled with rated compressed air in advance, and the bag body 7 is provided with a valve or a bicycle tire valve with a structure similar to an air hole, preferably a structure such as a basketball air hole, here Do not go into detail. In addition, there may also be a connecting hose (not shown in the figure) connected to the bag body, the connecting hose is communicated with the low-pressure air source through a leather tube (not shown in the figure), and the leather tube is provided with The valve is switched on and off (not shown in the figure), so that the bladder can be inflated under the condition of a compressed air source. At this time, the bladder is equivalent to a manual switch to control the external deflation. The purpose is still to artificially sense the pressure. size, and reasonably adjust how much airflow is output.

When in use, the operator holds the bag body 7, presses the pressing cap on the top of the pressing rod 13 with his thumb, and presses the top rod downward, and the top rod drives the rotating rod 11 to make a lever movement. At the center of the circle, the two are concentric, and when the slide plate 9 rotates around the center of the circle to the process in which the through hole 702 overlaps with the pipe hole of the charging tube 8, it can be inflated to the outside, and the charging tube 8 and the trachea can be inflated to the outside. 5 connected. It should be further noted that, in this embodiment, the difference between the size of the through hole 702 on the sliding plate 9 and the hole size of the charging pipe 8 should be as large as possible, which is also particularly important, because only in this way can the sliding plate 9 be guaranteed to move. The time until its through hole 702 is in cross communication with the tube hole of the charging tube 8 is longer in order to fully inflate outward through the charging tube 8 . 2 is a simplified schematic diagram, so the difference between the size of the through hole 702 and the tube hole of the charging tube 8 is drawn to be small, but in actual production, for example, preferably, the through hole 702 can be processed to bend with the sliding plate 9 The arc-shaped strip hole structure with the same direction, on the one hand, adapts to the length direction (bending direction) of the sliding plate 9, and on the other hand greatly increases the time for the through hole 702 of the sliding plate 9 to communicate with the pipe hole of the charging pipe 8 when the sliding plate 9 slides. Make sure that the inflation tube 8 provides sufficient inflation pressure for the externally connected medical devices such as an anorectal applicator.

Of course, the structure for inflating the bag body 7 can also be designed as follows: referring to FIG. 3 together, a one-way air intake component is additionally installed at the other end of the bag body 7 to realize the air supply of the bag body 7 at any time. , Air storage, the one-way air intake component includes an active plate 24, a drive rod 18, a gate 19, a guide rod 21, a top support spring 22, a fixed rod 23 and a pressure inlet pipe 20, the pressure inlet pipe 20 penetrates Embedded in the rear end of the bag body 7 , the active plate 24 is fixedly connected to the side of the rotating rod 11 facing the rear end of the bag body 7 . One end of the driving rod 18 is in smooth contact with the active plate 24, and the other end is connected with the shutter 19. The shutter 19 has a pair of spaced, parallelly arranged guide rods 21 at the end of the shutter 19 away from the driving rod 18. The rods 21 are respectively inserted into the pipe wall of the pressure inlet pipe 20 and can slide freely in the pipe wall. The top support spring 22 is also provided between the two guide rods 21, and one end of the top support spring 22 is connected to the gate. One end of 19 away from the drive rod 18, the other end is connected to the fixed rod 23 fixed in the pressure inlet pipe 20, in the non-working state, the top support spring 22 pushes the gate 19 away from the port of the pressure inlet pipe 20 . When the pressing rod 13 is pressed down to drive the rotating rod 11 to rotate, the active plate 24 squeezes and pushes the driving rod 18 to move axially, so that the shutter 19 closes the port of the pressure inlet pipe 20, and at the same time, The rotating rod 11 drives the slide plate 9 to open the above-mentioned charging tube 8 to realize external inflation. After releasing the pressing rod 13 , each component is reset, the shutter 19 is pushed open by the above-mentioned supporting spring 22 , the sliding plate 9 closes the charging tube 8 , and external air enters the bladder 7 to realize the air supply of the bladder 7 . Further, if necessary, if the overall length of the bag body 7 is too long, the driving rod 18 can be additionally provided with several coaxially arranged shaft sleeves (not shown in the figure) to support its sliding. (not shown) is fixed on the central axis in the bag body 7, and the inner ribs are fixed on the inner wall of the bag body 7. At this time, the pressing of the bag body 7 should be carried out in a way of squeezing both sides and is not suitable for hand holding; of course , the driving rod 18 can also be made into a lightweight rod, made of a plastic material with low density, and the place where it contacts the active plate 24 is a smooth metal ball partially embedded in the plastic to improve wear resistance and reduce There is little friction, and the above-mentioned guide rod is made of metal material, so as to maintain the sliding stability of the cantilevered driving rod 18 .

In the structure of the above one-way air intake component, there is another key design detail that needs special attention: for the drive rod 18, because after the shutter plate 19 is pushed to the end face of the pressure inlet pipe 20, the pressure rod 13 cannot be used any longer. Continue to press down, so the balloon body 7 cannot continue to be fully compressed in a large amount, so the inflatable capacity plummets. In order to make the bladder 7 still have the overall overall compression amount after the driving rod 18 pushes the shutter 19 to the end face of the pressure inlet pipe 20, the driving rod 18 is specially processed to have an elastic expansion and contraction structure, but its elasticity is lower than The elasticity of the top support spring 22 , that is, when the above-mentioned active plate 24 is in pressing contact with the driving rod 18 , the top support spring 22 shrinks violently first, and when the gate 19 pushes against the end face of the pressure inlet pipe 20 , the driving rod 18 does not. It is obviously shortened gradually to adapt to the further rotation of the active plate 24, so as to cleverly avoid the problem that the capsule body 7 cannot be further fully depressed. In specific implementation, the driving rod 18 can be made into a two-section socket structure (not shown in the figure), one end of one section is inserted into a blind hole axially arranged at the end of the other section, and a blind hole is installed in the blind hole A pressure-bearing spring whose elasticity is weaker than that of the top support spring 22, one end of the above-mentioned section extends into the blind hole and then is connected to the pressure-bearing spring, so that the driving rod shortens when the pressure-bearing spring is compressed. Of course, this embodiment may also adopt other structural forms of elastic telescopic rods in the prior art that meet the above requirements.

After the above one-way air intake component is installed on the bag body 7, it is convenient for medical staff to inflate the annular expansion cavity 4 at any time. Because the hand-held pressing has a personal perception effect, it is easy to know the pressure level. Compared with some commonly used ones The compressed air controlled by the constant pressure valve is much safer and more reliable, has a simple structure, a small volume, is easy to carry, and can be connected to the end of the rear section 2 of the drug delivery tube through a rope or the like. At certain times, for example, when the sliding plate needs to slide a large stroke, or when the device has a large amount of external inflation and needs to compress the bladder 7 a lot, the front and/or rear ends of the bladder 7 are made of hard or weak plastic. It is made of elastic material to ensure that the sliding plate 9 can slide stably and freely, or the part of the bag body 7 except the arc-shaped chute 701 and the area where the pressure inlet pipe 20 is located is made of elastic material. It is sufficient to hold or press the part between the two ends of the capsule body 7 .

In addition, in order to more vividly illustrate that the present invention is suitable for the inflation and pressurization of specific clinical medical instruments, and to better highlight the technical concept of the present invention, its real use and its effects, this embodiment also specifically provides a A more specific drug delivery device for the anorectum, which requires the inflatable device in the present invention to be inflated with air, so as to realize its fixed installation in the anorectum. In other words, the above-mentioned specific application can actually be matched to form a specific anorectal auxiliary therapy device, which includes the anorectal administration pressurization device of the present invention and a medicine soaking device, and the medicinal soaking device includes a device that can be inserted into the anorectum. The inner expansion body, the expansion body includes an outer skin layer and an inner core body, and the skin layer has elasticity, and there are voids between the skin layer and the core body. The inside of the core body is provided with a channel for the inflow of external medicinal liquid, and the outlet end of the channel is communicated with the dosing hole opened on the surface layer. Part of it protrudes from the surface of the expansion body to form a cofferdam. Specifically, the specific structure of the above-mentioned dipping device is as follows:

This anorectal drug delivery device, that is, a drug soaking device, mainly includes a drug delivery tube with a drug delivery channel for the drug liquid to flow through. As shown in FIG. 4 , the drug delivery tube is divided into a front section 1 and a rear section. Section 2, the front section 1 is used to insert into the anorectum and the bottom of the drug delivery channel of the front section 1 is closed and the side wall has a drug outlet hole 101, and the outer surface of the rear section 2 has several graduation lines along the length direction to mark The length of the drug tube inserted into the anorectum, the rear section 2 should be made of soft skin-friendly material, and the surface of the rear section 2 should be as smooth as possible to facilitate insertion. In the drug delivery tube of this embodiment, the front section 1 is also fixedly covered with an elastic bullet-shaped hollow elastic sleeve 3, that is, the front end is in the shape of a cone, and the rear end is in the shape of a cylinder. It is also suitable to be slightly smooth, that is, the front section 1 and the elastic sleeve 3 are used as the expansion body at this time, and the medicine outlet hole 101 is used as the core body (as the front section 1). export side. The end of the elastic sleeve 3 facing away from the bullet 301 is fixedly sleeved on the surface of the front section 1, and the elastic sleeve 3 bullet 301 direction is tightly sheathed at the free end of the front section 1 and the free end is integrally embedded in the elastic sleeve 3 bullet 301 inside the side wall at the center. The side wall of the elastic sleeve 3 facing the medicine outlet hole 101 is integrally and protrudingly provided with a medicine outlet cartridge 304 on the side of the medicine outlet hole 101 , that is, the medicine outlet cartridge 304 can be integrally formed with the same material. One end of the drug delivery cartridge 304 is connected to the drug delivery hole 101, and the other end (as the drug delivery hole) penetrates the side wall of the elastic sleeve 3 for contacting and administering with the inner wall of the anorectum, and the elastic sleeve 3 and the An annular expansion cavity 4 for accommodating air is formed between the front section 1 of the drug delivery tube, that is, the void left between the above-mentioned surface layer and the core, so as to make the side walls of the elastic sleeve 3 radially expand as much as possible. At the same time, in order to supply compressed air and medicinal liquid, the pressurizing device for anorectal drug delivery in this embodiment further includes a trachea 5 for delivering compressed air, and the trachea 5 is laid in the drug delivery tube along the length direction of the drug delivery tube , and one end of the trachea 5 extends into the annular expansion chamber 4, and the other end extends from the rear section 2 of the drug delivery tube and is connected to an inflatable device, preferably, the inflatable device is a manually pressed air bag or a pump , so as to press and inflate in time. In addition, in the above-mentioned embodiment, for the supply of medicinal liquid and compressed air, other methods can also be used to supply air and medicinal liquid, but considering the centralized wiring and piping, convenient use and storage, it is better to integrate it in the drug delivery system. inside the pipe wall. In order to prevent the backflow of the outflowing liquid medicine, the axis of the drug delivery cartridge 304 and the axis of the elastic sleeve 3 form an obtuse angle with each other, and the bottom of the drug delivery channel of the front section 1 of the drug delivery tube is in the shape of an upwardly convex spherical surface. In this way, On the one hand, after the patient is placed in the prone position after being put into the drug delivery tube, because the cartridge 304 is inclined, it will not immediately flow back into the drug delivery channel, providing time for the affected part to absorb; on the other hand, in some cases In special drug administration occasions, if the drug flow rate is large, it is convenient for the liquid medicine to be scattered and shunted when it enters the bottom end of the drug delivery channel, so as to alleviate the concentrated scour and splash and the return of the liquid medicine after the part combined with the affected area caused by the splash. In addition, the medicine outlet hole 101 is located at the side wall around the bottom spherical surface 102 of the front section 1, and the spherical surface participates in forming a part of the hole wall of the medicine outlet hole 101. This design is mainly on the basis of alleviating concentrated scouring and splashing , to a certain extent, taking into account the flow of medicinal liquid from the drug delivery channel as much as possible, reducing the waste of medicinal liquid deposition, and ensuring the accuracy of the dosage.

In order to prevent the medicinal liquid from flowing out of the medicine cartridge 304 and then scattered to parts other than the affected area, it is advisable to make the elastic expansion degree at the outlet end of the medicine discharge cartridge 304 larger than that of the rest of the parts, that is, relatively speaking, the surface of the elastic sleeve 3 at the medicine discharge cartridge 304 The bulge and protrusion are higher to form the above-mentioned cofferdam, which more closely contacts and surrounds the surrounding of the affected area, and completely surrounds the affected area within the outlet end of the cartridge 304 . Specifically, the thickness of the wall of the medicine outlet cartridge 304 gradually becomes thinner from the two ends toward the center, and the wall of one end towards the outside of the elastic sleeve 3 is thinner than the wall connected to the medicine outlet hole 101 . On this basis, the outer surface of the barrel wall of the drug delivery cartridge 304 is concave inward, and the inner surface of the barrel wall is concave outward, so as to form a cross-sectional profile similar to a hyperbolic curve, which is converted into an arc-shaped curve, that is, the radii are R and R respectively. r. In this way, when the annular expansion chamber 4 is expanded, the expansion and deformation of the outflow cartridge 304 must be larger, and it will be in closer contact with the healthy inner wall surface around the affected part of the anorectal inner wall. And further, as shown in Fig. 5, a straight line passing through the vertex Z of the bottom spherical surface 102 of the front section 1 and perpendicular to the axis of the elastic sleeve 3 intersects the inner surface of the cylinder wall at the upper part; this structure is mainly for the influx of medicinal liquid. During the horizontal splashing process of the liquid medicine produced by the impact on the bottom surface of the drug delivery channel, it will not be directly projected to the affected area, but will be blocked and buffered by the curved arc-shaped cylinder wall, and then enter the concave arc-shaped cylinder wall below, smoothly It flows into the affected area to achieve gentle administration, especially for the occasions where the drug is strong and needs to be administered gradually and mildly. In order to make the surface of the elastic sleeve 3 at the medicine outlet 304 bulge higher, that is, to be more sensitive to pressure changes, the longitudinal section of the intersecting part of the annular expansion chamber 4 and the medicine outlet cylinder 304 in the present invention has a knife-like structure , and the blade is the contour curve after the longitudinal cutting of the outer wall of the cartridge 304, which can deform and expand in a timely manner when the air is filled, gradually squeeze the medicinal liquid into the affected area, and realize the tight fit with the inner wall of the anorectum, Centralized drug delivery. In order to achieve the above-mentioned effects, the present embodiment also provides another specific structure for the connection between the medicine cartridge 304 and the elastic sleeve 3: as shown in FIG. Structure, the cylinder wall here can be made thicker, the port towards the outer side of the elastic sleeve 3 is trumpet-shaped, and the side wall of the elastic sleeve 3 around the bell mouth should be thinner than the rest of the side walls, so as to form an annular Deformation washer 305, which expands and bulges outward when the annular expansion chamber 4 is filled with a rated amount of air to further press and contact the inner wall of the anorectum; when this structure is filled with air, the elastic sleeve 3 When the expansion deformation occurs, the deformation washer 305 first contacts the inner wall of the anorectum to lock the drug delivery range; that is, when it is not inserted into the anorectum, after expansion, the apex of the bulge of the deformation washer 305 and the rest of the surrounding elastic sleeve 3 There is a height difference of D>0 on the surface, so that when inserting, the deformed gasket 305 first contacts with the inner wall of the anorectum, locks the drug delivery range, and is firmly fixed under the cooperation of the other surfaces of the elastic sleeve 3 that are also close to the inner wall of the anorectum. In the anorectum, and at the same time it is ensured that the medicinal liquid does not disperse to parts other than the affected part, the dosage is the most accurate under this structure, and the medicinal liquid is least likely to flow out to places other than the outlet of the cartridge 304 .

When those skilled in the art are making, preferably, the inlet of the drug delivery channel of the rear section 2 of the drug delivery tube is connected to the flexible infusion tube 6 for delivering the liquid medicine, and the rear section 2 includes a cylindrical section and a truncated cone section, The cylindrical section and the truncated cone section are coaxially connected, the center of the large end of the truncated cone section is coaxially connected with the front section 1 and the diameter of the front section 1 is smaller than the large end of the truncated cone section, and the elastic sleeve 3 is away from the end of the warhead 301 There is a gap between the end face and the large end face of the truncated cone section, so that the elastic sleeve 3 is more convenient for fixed installation, and especially the above-mentioned gap ensures that the elastic sleeve 3 can be deformed and expanded relatively freely. In addition, the outlet end of the trachea 5 in this embodiment passes through the side wall of the front section 1 near the truncated cone section and communicates with the upper end of the annular expansion cavity 4 to facilitate the connection and laying of the trachea 5 . The bullet 301 of the elastic sleeve 3 can also be a solid structure with a rounded tip less elastic than other parts, which is mainly convenient for inserting the drug delivery tube, and at the same time, the elastic sleeve 3 is expanded circumferentially as far as possible to closely adhere to the inner wall of the anorectum. Further, the free end of the front section 1 of the drug delivery tube has a T-shaped inward expansion groove in cross section, and the central inner wall of the elastic sleeve 3 at the bullet 301 is axially provided with the inward expansion groove toward the inward expansion groove. Bolt-shaped T-shaped protrusions 302, the T-shaped protrusions 302 are embedded in the inner expansion grooves to fill the inner expansion grooves, so as to ensure that the elastic sleeve 3 is well fixed on the front section 1 . Preferably, the T-shaped protrusions 302 are coaxially located in the annular enclosure 303 on the central inner side wall of the bullet 301 of the elastic sleeve 3 , and the outer wall surface of the annular enclosure 303 is tangential to the outer surface of the front section 1 The arc-shaped surface is to fully avoid that when the elastic sleeve 3 expands, the part of the bullet 301 wrapped around the end of the front section 1 is separated from it under the impact of the airflow, because if there is an annular step between the enclosure 303 and the outer wall of the front section 1, the airflow will After impacting the step surface, it is easy to push the elastic sleeve 3 forward and loosen. In order to ensure the tight connection between the elastic sleeve 3 and the front section 1, in the contact part where the front section 1 and the elastic sleeve 3 fit together, all the contacts except the mating contact point of the T-shaped raised part 302 on the front section 1 and the elastic sleeve 3 The parts are fixed and fit, and the entire drug delivery tube is more firmly connected as a whole.

It is used when the specific location of the affected part on the inner wall of the anorectum is known after the inspection. It can also be combined with modern medical imaging equipment to track the position where the drug delivery tube enters and the orientation of the cartridge 304 in real time to ensure that the cartridge 304 is facing the affected part. For example, some existing visual medical components such as endoscopes are used for auxiliary use, the endoscope is sealed and packaged and directly installed in the cartridge 304, and the signal line can be drawn from the drug delivery channel, and the drug delivery effect is better. However, for the superficial anorectal affected area 17, since the affected area can be directly visible after the anus is expanded, after rotating the administration tube to the desired position, the administration tube can be directly inserted into the administration tube for accurate administration to the affected area. The pressurizing device for anorectal drug delivery provided by the present invention can be assisted by medical technicians in the art in combination with common technical means of modern medicine to achieve the best drug delivery effect, and examples are not repeated in this embodiment.

It can be seen that a specific anorectal drug delivery device mentioned in the above embodiment can be used in conjunction with the anorectal drug delivery pressurization device of the present invention. When used in conjunction with the inflatable device of the present invention, the above The inflation tube is connected to the trachea of the above-mentioned drug delivery device, so as to be inflated in real time when the drug delivery device (drug delivery device) inserted into the anorectum needs to be fixedly inserted, and the size and amount of inflation can be judged by the difficulty of manual pressure, and excessive inflation is avoided as far as possible. , in particular, it can prevent the pain and discomfort caused by the instantaneous air influx to the patient's anorectum, which is safe and reliable, and the whole treatment process becomes mild and comfortable.

Finally, it should be noted that the above embodiments are mainly used to explain the technical solutions of the present invention. However, it is not a unique limitation. The above is only a preferred implementation of the present invention. Any modification, equivalent replacement, improvement, etc. made within the technical principle of the invention shall be included within the protection scope of the present invention.

Claims (5)

1. a pressurizing device for anorectal administration, it is characterized in that: comprise the hollow bladder body that can be compressed, the bladder body is provided with the air nozzle for injecting compressed air flow, and the bladder body front end has a charging tube embedded in the bladder , an arc-shaped chute is opened inside the bag wall at the front end of the bag body, the charging tube runs through the arc-shaped chute, and a strip-shaped slide plate with the same arc shape is slidably fitted in the arc-shaped chute. , a through hole is opened on the sliding plate, one end of the sliding plate is connected with the arc-shaped spring in the arc-shaped chute, and the other end is connected with a rotating rod extending into the bag body, the rotating rod is hinged on the hinge shaft in the bag body and the hinge shaft Located at the center of the slide plate, one end of the rotating rod away from the slide plate is hinged with a vertically arranged pressing rod, one end of the pressing rod is hinged with the rotating rod, and the other end extends out of the bag body after passing through the bag wall, and the pressing rod is It is sliding and sealing with the bag body; the pressure rod is connected to the inner wall of the bag through a return spring to realize the return of the pressure rod in a non-inflated state, or/and the rotating rod and the hinge shaft are connected through a torsion spring, the A torsion spring urges the non-inflated rotating rod to return. 2 . The pressurizing device for anorectal drug delivery according to claim 1 , wherein the balloon body is provided with an air nozzle with a basketball air hole structure. 3 . 3. A pressurizing device for anorectal drug delivery according to claim 1, characterized in that: a one-way air intake part is installed at the rear end of the balloon body, and the one-way air intake part comprises an active plate, a drive A rod, a gate, a guide rod, a top support spring, a fixed rod and a pressure inlet pipe, the pressure inlet pipe is inserted through the rear end of the bag body, and the active plate is fixed after the rotating rod faces the bag body One end of the driving rod is in smooth contact with the active plate, and the other end is connected with the shutter, and the end of the shutter facing away from the driving rod has a pair of spaced and parallel guide rods, the two guide rods are respectively It is inserted into the pipe wall of the pressure inlet pipe and can slide freely in the pipe wall. The top support spring is also provided between the two guide rods. One end of the top support spring is connected to the end of the gate away from the driving rod, and the other One end is connected to the fixed rod fixed in the pressure inlet pipe. In the non-working state, the top support spring pushes the gate away from the port of the pressure inlet pipe; when the pressure rod is pressed down to drive the rotating rod to rotate, the The active plate squeezes and pushes the drive rod to move axially, so that the shutter closes the port of the charging pipe, and the rotating rod drives the sliding plate to slide to the position where the through hole and the charging pipe are coaxial. 4. A pressurizing device for anorectal drug delivery according to claim 1, characterized in that: a connecting hose is also provided on the balloon body, and the connecting hose is communicated with a low-pressure air source through a skin tube, and the skin tube is With on-off valve. 5. An anorectal auxiliary therapy device, characterized in that: it comprises a pressurizing device for anorectal drug administration and a medicine soaking device according to any one of claims 1-4, and the medicinal soaking device comprises an expansion device that can be inserted into the anorectum. The expansion body includes an outer surface layer and an inner core body, and the surface layer has elasticity, and there are voids between the surface layer and the core body, and the voids are used to inflate air to expand the surface layer and make the expansion body larger; the core The inside of the body is provided with a channel for the inflow of external medicinal liquid, and the outlet end of the channel is communicated with the dosing hole opened on the surface layer. A cofferdam is formed on the surface of the expansion body.

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