Intraanal drug delivery device

Abstract

The utility model discloses an intraanal administration device, which belongs to the field of medical instruments and comprises an outer sleeve, an inner sleeve and a medicine spoon, and particularly, a first tube cavity is arranged in the outer sleeve in a penetrating manner; the inner sleeve is movably arranged in the outer sleeve and penetrates through the first pipe cavity in the working direction, a second pipe cavity is formed in the inner sleeve, and a protection petal is arranged at one end of the inner sleeve in a surrounding mode; and the medicine spoon is movably arranged in the inner sleeve and is separated from the pipe cavity II through the protection flap in the working direction. Through the arrangement, the problem that after medicine enters the anus, the release position is difficult to determine can be effectively solved, the medicine can be effectively prevented from being polluted or consumed before being released through the arrangement of the protection flap, residual powder on the surface of the medicine spoon is scraped off in the process that the medicine spoon retracts into the second pipe cavity, and then waste is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and specifically relates to an intra-anal drug delivery device. Background Art

[0002] Anorectal diseases, such as hemorrhoids and anal fistulas, are common diseases with high incidence rates. Surgical treatment is an important treatment method. Since most of the postoperative operations are contaminated, the incisions are mostly open and waiting for secondary healing. The recovery period is long, and the patients suffer a lot during the postoperative dressing change. Most patients not only have wounds on the perianal skin, but also have incisions on the anal canal and rectal mucosa in the anus. The management of the incisions in the anus is difficult, and complications such as false healing and infection often occur. Specifically: the anus is closed under normal conditions, and the diameter of the conventional anoscope is relatively thick. Placing the anoscope into the anus after surgery will cause great pain to the patient and cause complications such as pain, bleeding, and wound tearing. Secondly, after internal anal surgery, ointments, suppositories and other drugs are often used to assist wound recovery, while powdered drugs are difficult to administer; in addition, because the wound surface in the anus cannot be accurately observed, it is impossible to accurately administer the drug to the lesion, and it is impossible to determine the correct amount of drug. If the amount of drug is small, it will not be able to play a therapeutic role, and if the amount of drug is large, the risk of adverse reactions will increase and the economic burden of the patient will increase due to waste.

[0003] Therefore, a device is designed to illuminate the wound in the anus of a patient and accurately release powder medicine to the wound. This device is specifically an intra-anal drug delivery device. Utility Model Content

[0004] In order to overcome the problems raised in the background technology, the utility model adopts the following technical solutions:

[0005] An intra-anal drug delivery device comprises an outer sleeve, an inner sleeve and a medicine spoon, specifically: a first lumen is provided inside the outer sleeve; the inner sleeve is movably provided inside the outer sleeve and passes through the first lumen along a working direction, a second lumen is provided inside the inner sleeve, and a protective flap is provided around one end of the inner sleeve; the medicine spoon is movably provided inside the inner sleeve and detaches from the second lumen through the protective flap along the working direction.

[0006] Furthermore, the outer sleeve includes a lighting end portion, which faces the working direction. The lighting end portion is provided with a lighting structure around the central axis of the outer sleeve. The lighting structure is a plurality of LED lamp beads or an LED light strip, which is used to provide lighting for the intestinal wall of the patient's rectum after the outer sleeve enters the patient's anus, so that the user can better observe the drug administration position.

[0007] Furthermore, the outer sleeve also includes a limiting end portion, which deviates from the working direction, and the working direction is the same as the direction in which the limiting end portion points to the lighting end along the central axis of the outer sleeve. The limiting end portion is provided with an outer limiting plate, and the outer limiting plate is arranged on the outer wall of the limiting end portion around the central axis of the outer sleeve. The outer limiting plate is used to limit the maximum depth of the outer sleeve extending into the patient's anus, which can prevent the outer sleeve from being difficult to remove after entering the patient's anus as a whole, and the outer limiting plate is convenient for the user to grasp.

[0008] Furthermore, the central axis of the lumen one coincides with the central axis of the outer sleeve, and the inner diameter of the lumen one is larger than the outer diameter of the inner sleeve, so as to reduce the friction force applied to the inner sleeve by the lumen one when the inner sleeve enters the patient's anus through the outer sleeve.

[0009] Furthermore, the protective flap is elastic and has a tendency to close under the action of the elasticity. When the medicine spoon extends from the protective flap along the working direction, the protective flap is opened, and when the medicine spoon is retracted from the protective flap into the inner sleeve in the opposite working direction, the protective flap closes. The protective flap can reduce the contact of the medicine spoon with the external environment before extending from the inner sleeve, thereby preventing contamination, and when the medicine spoon returns to the inner sleeve through the protective flap, the protective flap with a tendency to close can scrape off excess powder on the medicine spoon. The protective flaps are arranged around the central axis of the inner sleeve and the number is at least 3.

[0010] Furthermore, an inner limit plate is provided on the outer wall of the end of the inner sleeve away from the working direction. The inner limit plate is symmetrically arranged on the outer wall of the inner sleeve about the central axis of the inner sleeve plate, thereby preventing the inner sleeve from entering the outer sleeve as a whole, which is beneficial for the user to control the depth of the inner sleeve inserted into the outer sleeve.

[0011] Furthermore, the end of the medicine spoon facing the working direction has a recess, and the recess can rotate around the central axis of the inner sleeve after passing through the protective flap. When the recess passes through the protective flap along the working direction, the protective flap does not contact the contents of the recess, and when the recess returns to the second lumen in the opposite working direction, the protective flap can scrape off the powder remaining on the outer wall of the medicine spoon.

[0012] Furthermore, an operating structure is provided at the end of the medicine spoon away from the working direction, and the maximum distance between any two points on the operating mechanism is greater than the inner diameter of the inner sleeve, thereby preventing the medicine spoon from entering the inner sleeve as a whole.

[0013] Furthermore, the operating structure is in a ring shape or a plate shape.

[0014] Furthermore, the maximum outer diameter of the medicine spoon is smaller than the inner diameter of the second lumen.

[0015] Further, the length of the inner sleeve along its own central axis is greater than the length of the outer sleeve along its own central axis to ensure that the protection flap can extend out of the illumination end when the inner limiting plate abuts against the limiting end of the outer sleeve; the length of the medicine spoon along its own central axis is greater than the length of the inner sleeve along its own central axis to ensure that one end of the medicine spoon facing the working direction can extend out of the protection flap when the operating structure abuts against the inner limiting plate.

[0016] Advantages of the utility model:

[0017] 1. When in use, first place the lubricated outer sleeve into the patient's anus. The user can see the patient's intestinal wall illuminated by the illumination structure through the first lumen, and master the position of the wound surface and the recovery situation of the wound surface. This is beneficial for the user to judge the amount of medicine to be put in and the depth that the medicine spoon needs to reach, and can effectively solve the problem that it is difficult to determine the release position of the medicine after it enters the anus, and has excellent practical effects.

[0018] 2. By setting the protection flap, the medicine spoon filled with medicine powder does not come into contact with the external environment before reaching the position where the medicine is released, which can effectively prevent the medicine from being contaminated or consumed before release, and the protection flap has elasticity and can scrape the residual powder on the surface of the medicine spoon during the process of the medicine spoon retracting into the second lumen, which can minimize waste to the greatest extent. Description of the drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0020] Figure 1 FIG. 18 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model when the medicine spoon is inside the inner sleeve;

[0021] Figure 2 For Figure 1 the cross-sectional structure schematic diagram;

[0022] Figure 3 FIG. 28 is a schematic diagram of the overall structure of the outer sleeve in Embodiment 1;

[0023] Figure 4 FIG. 32 is a schematic diagram of the overall structure of the inner sleeve in Embodiment 1;

[0024] Figure 5 FIG. 36 is a schematic diagram of the overall structure of the medicine spoon in Embodiment 1;

[0025] Figure 6 FIG. 40 is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0026] Figure 7 is Figure 6 a schematic cross-sectional structure diagram of

[0027] Figure 8 a schematic overall structure diagram of the medicine spoon in Embodiment 2;

[0028] In the figure, 1 is the outer sleeve; 11 is the first lumen; 12 is the lighting end; 121 is the lighting structure; 13 is the limiting end; 131 is the outer limiting plate; 2 is the inner sleeve; 21 is the working direction; 22 is the second lumen; 23 is the protection flap; 24 is the inner limiting plate; 25 is the third lumen; 3 is the medicine spoon; 31 is the concave; 32 is the operating structure; 33 is the injection head. Specific Embodiments

[0029] The following describes the technical solutions in the embodiments of the present invention clearly and completely through specific specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment 1

[0031] An anal administration device, as Figures 1-5 shown, includes: an outer sleeve 1, an inner sleeve 2 and a medicine spoon 3. Specifically: a first lumen 11 runs through the inside of the outer sleeve 1; the inner sleeve 2 is movably arranged inside the outer sleeve 1 and passes through the first lumen 11 along a working direction 21. There is a second lumen 22 inside the inner sleeve 2, and a protection flap 23 is arranged around one end of the inner sleeve 2; the medicine spoon 3 is movably arranged inside the inner sleeve 2 and detaches from the second lumen 22 through the protection flap 23 along the working direction 21.

[0032] A more preferred implementation manner is, as Figures 1-5As shown, the outer sleeve 1 includes a lighting end 11 and a lumen 12, the lighting end 11 and a lumen 12 face the working direction 21, and the lighting end 11 and a lumen 12 are provided with a lighting structure 121 around the central axis of the outer sleeve 1. The lighting structure 121 is a plurality of LED lamp beads or an LED light strip. The lighting structure 121 is connected to a button battery through a wire, and the button battery is arranged on an outer limiting plate 131. When in use, the button battery will not contact the patient. It is used to provide lighting to the intestinal wall of the patient's rectum after the outer sleeve 1 enters the patient's anus, so that the user can better observe the drug administration position. The outer sleeve 1 also includes a limiting end portion 13, which deviates from the working direction 21. The working direction 21 and the limiting end portion 13 are in the same direction as the direction of the tube cavity 11 of the lighting end portion 11 along the central axis of the outer sleeve 1; 12. The limiting end portion 13 is provided with an outer limiting plate 131, which is arranged on the outer wall of the limiting end portion 13 around the central axis of the outer sleeve 1. The outer limiting plate 131 is used to limit the maximum depth of the outer sleeve 1 extending into the patient's anus, which can prevent the outer sleeve 1 from being difficult to remove after entering the patient's anus as a whole. At the same time, the outer limiting plate 131 is convenient for the user to grasp.

[0033] A more preferred embodiment is as follows Figures 1-5 As shown, the central axis of lumen 1 coincides with the central axis of outer sleeve 1, and the inner diameter of lumen 1 is larger than the outer diameter of inner sleeve 2, so as to reduce the friction force applied by lumen 1 to inner sleeve 2 when inner sleeve 2 enters the patient's anus through outer sleeve 1.

[0034] A more preferred embodiment is as follows Figures 1-5 As shown, the protective flap 23 is elastic and has a tendency to close under the action of elasticity. When the medicine spoon 3 extends from the protective flap 23 along the working direction 21, the protective flap 23 is stretched open. After the medicine spoon 3 is retracted from the protective flap 23 into the inner sleeve 2 against the working direction 21, the protective flap 23 closes. The protective flap 23 can reduce the contact of the medicine spoon 3 with the external environment before extending from the inner sleeve 2, thereby preventing contamination. In the process of the medicine spoon 3 returning to the inner sleeve 2 through the protective flap 23, the protective flap 23 with a tendency to close can scrape off excess powder on the medicine spoon 3. The protective flap 23 is arranged around the central axis of the inner sleeve 2 and the number is at least 3.

[0035] A more preferred embodiment is as follows Figures 1-5 As shown, an inner limit plate 24 is provided on the outer wall of the end of the inner sleeve 2 away from the working direction 21. The inner limit plate 24 is symmetrically arranged on the outer wall of the inner sleeve 2 about the central axis of the inner sleeve plate, thereby preventing the inner sleeve 2 from entering the outer sleeve 1 as a whole, which is beneficial for the user to control the depth of the inner sleeve 2 inserted into the outer sleeve 1.

[0036] A more preferred embodiment is as follows Figures 1-5As shown in the figure, the end of the medicine spoon 3 facing the working direction 21 has a recess 31. After passing through the protection flap 23, the recess 31 can rotate around the central axis of the inner sleeve 2. When the recess 31 passes through the protection flap 23 along the working direction 21, the protection flap 23 does not contact the content of the recess 31. When the recess 31 returns to the second lumen 22 against the working direction 21, the protection flap 23 can scrape off the powder remaining on the outer wall of the medicine spoon 3.

[0037] A more preferred embodiment is, as Figures 1-5 shown, an operating structure 32 is provided at the end of the medicine spoon 3 facing away from the working direction 21. The maximum distance between any two points on the operating mechanism is greater than the inner diameter of the inner sleeve 2, so as to prevent the whole medicine spoon 3 from entering the inner sleeve 2. The operating structure 32 is in a ring shape or a plate shape.

[0038] A more preferred embodiment is, as Figures 1-5 shown, the maximum outer diameter of the medicine spoon 3 is smaller than the inner diameter of the second lumen 22, so as to reduce the resistance when the medicine spoon 3 enters and exits the inner sleeve 2. The length of the inner sleeve 2 along its central axis is greater than the length of the outer sleeve 1 along its central axis, so as to ensure that the protection flap 23 can extend out of the first lumen 12 of the lighting end 11 when the inner limiting plate 24 abuts against the limiting end 13 of the outer sleeve 1; the length of the medicine spoon 3 along its central axis is greater than the length of the inner sleeve 2 along its central axis, so as to ensure that one end of the medicine spoon 3 facing the working direction 21 can extend out of the protection flap 23 when the operating structure 32 abuts against the inner limiting plate 24.

[0039] Embodiment 2

[0040] An anal administration device, as Figures 6-8 shown, includes: an outer sleeve 1, an inner sleeve 2 and a medicine spoon 3. Different from Embodiment 1, in this embodiment: the outer sleeve 1 and the inner sleeve 2 are integrally provided, and the inner sleeve 2 and the outer sleeve 1 share a third lumen 25. A protection flap 23 is provided inside the third lumen 25. The protection flap 23 is the same as the protection flap 23 in Embodiment 1; the medicine spoon 3 is movably arranged in the third lumen 25 and can be separated from the third lumen 25 along the working direction 21 through the protection flap 23. The maximum outer diameter of the outer sleeve 1 is not greater than 2 cm.

[0041] A more preferred embodiment is, as Figures 6-8As shown, in this embodiment, a syringe head 33 is provided at one end of the medicine spoon 3 facing the patient during use. The syringe head 33 is hemispherical, different from the spoon shape in Embodiment 1. With this setting, the medicine spoon 3 can also function as a syringe structure. During use, first place the medicine delivery package containing the liquid medicine or the paste-like medicine into the third lumen 25, and then place the medicine spoon 3 into the third lumen 25. At this time, when the syringe head 33 moves towards the patient's body, it can push the medicine delivery package or the medicinal paste from the third lumen 25 towards the patient's intestine. At the same time, medicine powder can also be placed in the concave groove 31, so as to simultaneously place different types of therapeutic drugs into the patient's body, which is beneficial to accelerating the patient's recovery. The maximum outer diameter of the syringe head 33 is equal to the inner diameter of the third lumen 25, which can effectively prevent the drugs on both sides of the syringe head 33 from contacting each other before the concave groove 31 protrudes from the third lumen 25, and can also make the medicine spoon 3 expand the intestinal wall in the working direction 21 after entering the patient's intestine, so that the medicine powder can be released through the concave groove 31.

[0042] A more preferred embodiment is that, in addition, a syringe is further included. A liquid outlet tube is connected to the front end of the syringe. When the user needs to directly release the liquid medicine to the target position in the patient's intestine, the medicine spoon 3 can be withdrawn from the third lumen 25, and after determining the medicine release position through the lighting structure 121, the liquid outlet tube can be passed through the third lumen 25 and extended into the patient's intestine, and finally the release of the liquid medicine is achieved.

Claims

1. An anorectal administration device, characterized in that, include: An outer sleeve, wherein a lumen 1 is provided through the inner part thereof; An inner sleeve is movably disposed in the outer sleeve and passes through the first lumen along a working direction, the inner sleeve has a second lumen, and a protective flap is disposed around one end of the inner sleeve; The medicine spoon is movably arranged in the inner sleeve and is separated from the second lumen through the protective flap along the working direction.

2. The anus internal administration device according to claim 1, characterized in that, The outer sleeve comprises an illumination end portion, the illumination end portion faces the working direction, and an illumination structure is arranged around the central axis of the outer sleeve at the illumination end portion.

3. The anorectal administration device according to claim 2, characterized in that, The outer sleeve also includes a limiting end portion, which is away from the working direction. The working direction is the same as the direction in which the limiting end portion points to the lighting end along the central axis of the outer sleeve. The limiting end portion is provided with an outer limiting plate.

4. The anal administration device according to claim 1, wherein The central axis of the lumen 1 coincides with the central axis of the outer sleeve, and the inner diameter of the lumen 1 is greater than the outer diameter of the inner sleeve.

5. The anus administration device according to claim 1, characterized in that The protective flap is elastic and has a tendency to close under the action of elasticity. When the medicine spoon extends from the protective flap along the working direction, the protective flap is opened. When the medicine spoon is retracted from the protective flap into the inner sleeve against the working direction, the protective flap closes.

6. The anus administration device according to claim 1, characterized in that, An inner limiting plate is arranged on the outer wall of the end portion of the inner sleeve away from the working direction.

7. The anorectal administration device according to claim 1, characterized in that, The end of the medicine spoon facing the working direction is provided with a recess, and the recess can rotate around the central axis of the inner sleeve after passing through the protective flap.

8. The anorectal administration device according to claim 1, characterized in that, An operating structure is arranged at the end of the medicine spoon away from the working direction, and the maximum distance between any two points on the operating structure is greater than the inner diameter of the inner sleeve.

9. The anus administration device according to claim 1, wherein The maximum outer diameter of the medicine spoon is smaller than the inner diameter of the second lumen, and the outer diameter of the outer sleeve is no greater than 2 cm.

10. The anal administration device according to claim 1, characterized in that, The length of the inner sleeve along its own central axis is greater than the length of the outer sleeve along its own central axis, and the length of the medicine spoon along its own central axis is greater than the length of the inner sleeve along its own central axis.

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