Disposable transanal dosing device

Abstract

The utility model relates to a disposable transanal drug delivery device, which comprises a hose with a drug outlet micropore at the front end, and is characterized by further comprising a hard outer tube, a push rod and a hard support rod, the hard outer tube is of a double-layer jacket structure with an opening at the rear end, a jacket cavity is arranged in the hard outer tube, lubricant is filled in the jacket cavity, and the hard support rod is connected with the push rod. The push rod is inserted into the jacket cavity of the hard outer pipe from the rear end opening, small holes are uniformly distributed in the surface of an outer layer shell of the hard outer pipe, and a detachable covering film is arranged on the surface of the hard outer pipe; the hose is arranged in a center channel of the hard outer pipe, the hard supporting rod coaxially penetrates through the hose, and the front end of the hard supporting rod abuts against the inner wall of the front end of the hose. The anus dilator is ingenious in structure and reasonable in design, the hard outer tube is used for dilating the anus so that the hose can smoothly enter the anus, and dosing can be conveniently conducted through the hose.

Description

Technical Field

[0001] The utility model relates to a disposable transanal medication device, belonging to the technical field of medical equipment. Background Art

[0002] Radiation enteritis is prone to occur during radiotherapy for rectal cancer. Appropriate use of enema can reduce the risk of acute and long-term intestinal damage. Currently, the commonly used perfusion instruments in clinical practice are mainly hard rectal applicators (such as Lanrun brand medical bowel movement and intestinal cleansing flushing head) and hose-like applicators. The length of the hard rectal applicator is about 10 cm, and it is impossible to deliver the drug to the distal intestinal tract. The front part of the hose-like applicator is passed through the anus, and the material is also harder. In actual use, there is a risk of secondary damage to the intestinal mucosa and perforation. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a disposable transanal drug delivery device, which has an ingenious structure and a reasonable design. The hard outer tube expands the anus to allow a soft tube to enter smoothly, making it easy to deliver the drug through the soft tube.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0005] A disposable transanal drug delivery device comprises a hose with a front end provided with a drug outlet micro-hole, characterized in that it also comprises a hard outer tube, a push rod and a hard support rod, the hard outer tube is a double-layer jacket structure with an opening at the rear end, a jacket cavity is provided inside the hard outer tube, a lubricant is contained in the jacket cavity, the push rod is inserted into the jacket cavity of the hard outer tube from the rear end opening, small holes are evenly distributed on the surface of the outer shell of the hard outer tube, and a detachable film is provided on the surface of the hard outer tube; the hose is arranged in the central channel of the hard outer tube, the hard support rod is coaxially penetrated in the hose, and the front end of the hard support rod abuts against the inner wall of the front end of the hose.

[0006] As a further improvement of the present invention, the front end of the hose is provided with a spindle-shaped head with rounded corners, the outer diameter of the front part of the hard outer tube gradually decreases from back to front, and the outer surface of the front end of the hard outer tube smoothly transitions and adapts to the outer surface of the front half of the spindle-shaped head; the inner wall shape of the front end opening of the hard outer tube is adapted to the outer wall shape of the back half of the spindle-shaped head.

[0007] As a further improvement of the utility model, the inner wall at the front end of the hose is provided with a thickened portion, the thickened portion is provided with a hemispherical socket, and the front end of the hard support rod is provided with a ball head adapted to the hemispherical socket.

[0008] As a further improvement of the utility model, the front end of the hose is closed, and a plurality of the medicine outlet microholes are opened on the side wall of the front part of the hose.

[0009] As a further improvement of the utility model, the surface wall of the hose is provided with scales.

[0010] As a further improvement of the utility model, a handle is provided at the tail of the hard outer tube.

[0011] As a further improvement of the utility model, a detachable multi-type adapter is connected to the rear end of the hose.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1) The utility model cooperates with the hose by arranging a hard outer tube, a push rod and a hard support rod. The hard outer tube can be smoothly inserted from the patient's anus, which is convenient for operation and can relieve the patient's pain; the hard support rod can accurately make the front end of the hose reach the target depth, and the drug administration operation can be conveniently performed; and the hard outer tube can ensure that the hose will not be squeezed and deformed by the anus, ensuring that the drug solution can be delivered smoothly.

[0014] 2) The utility model provides a spindle-shaped head with rounded corners at the front end of the hose, and the outer surface of the front end of the hard outer tube smoothly transitions and adapts to the outer surface of the front half of the spindle-shaped head, and the inner wall shape of the front end opening of the hard outer tube is adapted to the outer wall shape of the rear half of the spindle-shaped head. This can ensure that the drug delivery device can be easily and smoothly inserted into the patient's anus, and the spindle-shaped head at the front end of the hose can always sit firmly in the front end opening of the hard outer tube during the insertion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the utility model when the hose is pushed forward a certain distance by the hard support rod.

[0017] Figure 3 for Figure 1 A is an enlarged schematic diagram.

[0018] Figure 4 for Figure 1 Enlarged cross-sectional view at point B in FIG.

[0019] Explanation of the reference numerals: 1-hose, 1a-micropore for drug discharge, 1b-spindle-shaped head, 1c-thickened portion, 1d-hemispherical socket, 2-rigid outer tube, 2a-jacket cavity, 2b-small hole, 2c-handle, 3-push rod, 4-rigid support rod, 4a-ball head, 5-detachable covering film, 6-multi-type adapter joint. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with specific drawings and embodiments.

[0021] like Figure 1, Figure 2 As shown, the embodiment discloses a disposable transanal drug delivery device, which is mainly composed of a hose 1, a hard outer tube 2, a push rod 3, a hard support rod 4, a detachable covering film 5 and a multi-type adapter 6 and other components.

[0022] like Figure 1 to Figure 3 As shown, the front end of the hose 1 is closed, and a plurality of drug outlet micropores 1a are provided on the side wall of the front part of the hose 1; the hose 1 is a channel for the input of therapeutic drugs, and is always retained in the body during the drug administration process. The drugs are input from the rear end of the hose 1 and enter the intestine through the drug outlet micropores 1a. The hard outer tube 2 is a double-layer jacket structure with an opening at the rear end, and a jacket cavity 2a is provided inside the hard outer tube 2, and a lubricant is filled in the jacket cavity 2a. The push rod 3 is inserted into the jacket cavity 2a of the hard outer tube 2 from the rear end opening, and small holes 2b are evenly distributed on the outer shell surface of the hard outer tube 2, and a detachable film 5 is provided on the surface of the hard outer tube 2; the hose 1 is arranged in the central channel of the hard outer tube 2, and the hard support rod 4 is coaxially penetrated in the hose 1, and the front end of the hard support rod 4 abuts against the inner wall of the front end of the hose 1.

[0023] The use of the disposable transanal drug delivery device is as follows:

[0024] Before insertion, the removable film 5 is removed, and then the push rod 3 is pushed to allow the lubricant in the jacket cavity 2a to seep out to the outer wall of the hard outer tube 2 through the small hole 2b.

[0025] Then the drug delivery device [initial state see Figure 1 】It is inserted from the patient's anus. Since the surface of the hard outer tube 2 is coated with lubricant, the hard outer tube 2 can pass through the anus smoothly, which is convenient for operation and can reduce the patient's pain.

[0026] After the hard outer tube 2 is inserted into place, the hard support rod 4 is gently pushed inward. Since the front end of the hard support rod 4 abuts against the inner wall of the front end of the hose 1, the hard support rod 4 pushes forward and drives the hose 1 to move forward synchronously, so that the front end of the hose 1 can be easily reached to the target depth [see the status Figure 2 In order to facilitate the determination of the arrival position of the front end of the hose 1, the surface wall of the hose 1 is preferably provided with a scale. The front end of the hose 1 is closed to ensure that the hard support rod 4 can stably and reliably abut against the inner wall of the front end of the hose 1.

[0027] When the front end of the hose 1 is in place, the hard support rod 4 is withdrawn from the hose 1, and then a drug delivery device [such as a syringe, etc.] is connected to the rear end of the hose 1, and the drug administration operation can be conveniently performed. In addition, the hard outer tube 2 can ensure that the hose 1 will not be squeezed and deformed by the anus, ensuring that the drug solution can be delivered smoothly.

[0028] like Figure 1 , Figure 2As shown, in this embodiment, the front end of the hose 1 is provided with a spindle-shaped head 1b with rounded corners, the outer diameter of the front part of the hard outer tube 2 gradually decreases from the back to the front, and the outer surface of the front end of the hard outer tube 2 smoothly transitions and adapts to the outer surface of the front half of the spindle-shaped head 1b; the inner wall shape of the front end opening of the hard outer tube 2 is adapted to the outer wall shape of the back half of the spindle-shaped head 1b. Such a setting can not only ensure that the drug delivery device of the utility model can be easily and smoothly inserted into the patient's anus, but also allow the spindle-shaped head 1b at the front end of the hose 1 to always sit firmly in the front end opening of the hard outer tube 2 during the insertion process of the drug delivery device.

[0029] like Figure 4 As shown, in this embodiment, the inner wall of the front end of the hose 1 is provided with a thickened portion 1c, the thickened portion 1c is provided with a hemispherical socket 1d, and the front end of the hard support rod 4 is provided with a ball head 4a adapted to the hemispherical socket 1d. With such a configuration, when the hard support rod 4 is pushed inward, the ball head 4a at the front end of the hard support rod 4 will automatically find its position and embed into the hemispherical socket 1d, so that the front end of the hose 1 remains stable during the pushing process; and the thickened portion 1c can prevent the front end of the hose 1 from being deformed by the hard support rod 4, ensuring that the hose 1 can be pushed forward smoothly.

[0030] like Figure 1 , Figure 2 As shown, in this embodiment, a grip handle 2c is provided at the tail of the hard outer tube 2. With this arrangement, on the one hand, the grip handle 2c is convenient to operate when pushing the lubricant; on the other hand, when the hard outer tube 2 is inserted into the anus, the grip handle 2c can be pressed against the buttocks to keep the hard outer tube 2 stable.

[0031] like Figure 1 , Figure 2 As shown, in this embodiment, the rear end of the hose 1 is connected with a detachable multi-type adapter 6, so that it can be connected to drug delivery devices of various specifications.

[0032] The above description is only a preferred embodiment of the utility model, and the above specific embodiment is not a limitation of the utility model. Various deformations and modifications may occur within the technical concept of the utility model, and any modification, modification or equivalent replacement made by ordinary technicians in this field based on the above description belongs to the scope of protection of the utility model.

Claims

1. A disposable transanal drug delivery device, comprising a hose (1) with a drug delivery micro-hole (1a) at the front end, characterized in that: It also includes a hard outer tube (2), a push rod (3) and a hard support rod (4); the hard outer tube (2) is a double-layer jacket structure with an opening at the rear end; a jacket cavity (2a) is provided inside the hard outer tube (2); a lubricant is contained in the jacket cavity (2a); the push rod (3) is inserted into the jacket cavity (2a) of the hard outer tube (2) from the opening at the rear end; small holes (2b) are evenly distributed on the outer shell surface of the hard outer tube (2); and a detachable coating (5) is provided on the surface of the hard outer tube (2); the hose (1) is arranged in the central channel of the hard outer tube (2); the hard support rod (4) is coaxially penetrated in the hose (1); and the front end of the hard support rod (4) abuts against the front end inner wall of the hose (1).

2. The disposable transanal drug delivery device according to claim 1, characterized in that: The front end of the hose (1) is provided with a spindle-shaped head (1b) with rounded corners, the outer diameter of the front part of the hard outer tube (2) gradually decreases from the back to the front, and the outer surface of the front end of the hard outer tube (2) is smoothly transitioned and matched with the outer surface of the front half of the spindle-shaped head (1b); the inner wall shape of the front end opening of the hard outer tube (2) is matched with the outer wall shape of the rear half of the spindle-shaped head (1b).

3. The disposable transanal drug delivery device according to claim 1, characterized in that: The front end inner wall of the hose (1) is provided with a thickened portion (1c), the thickened portion (1c) is provided with a hemispherical socket (1d), and the front end of the hard support rod (4) is provided with a ball head (4a) adapted to the hemispherical socket (1d).

4. The disposable transanal drug delivery device according to claim 1, characterized in that: The front end of the hose (1) is closed, and a plurality of medicine outlet microholes (1a) are provided on the side wall of the front part of the hose (1).

5. The disposable transanal drug delivery device according to claim 1, characterized in that: The surface wall of the hose (1) is provided with scales.

6. The disposable transanal drug delivery device according to claim 1, characterized in that: The rear portion of the hard outer tube (2) is provided with a holding handle (2c).

7. The disposable transanal drug delivery device according to claim 1, characterized in that: The rear end of the hose (1) is connected to a detachable multi-type adapter joint (6).

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