Nasal feeding device

Abstract

The utility model relates to the technical field of drug delivery devices, and discloses a nasal feeding drug delivery device, which comprises a needle cylinder used for receiving drug mixed by drug powder and warm boiled water; the push rod is inserted into the needle cylinder and is used for pushing the medicament out of the inner cavity of the needle cylinder; the inner rod is inserted into the push rod, and a liquid flowing opening is formed in the penetrating end of the inner rod; the medicine feeding mechanism is in threaded connection with one end of the inner rod away from the push rod; the medicine feeding mechanism comprises a medicine grinding part and a push-pull part; the medicine grinding part is used for grinding tablets; the push-pull piece is arranged in the medicine grinding piece, and an inner cavity of the medicine grinding piece is communicated with an inner cavity of the inner rod through push-pull.

Description

Technical Field

[0001] The utility model relates to the technical field of drug delivery devices, in particular to a nasogastric drug delivery device. Background Art

[0002] In clinical medical work, for patients who are unable to eat normally orally or need special nutritional support, such as patients who have undergone major surgery on the head, neck and throat, laryngeal cancer, comatose patients, and patients with paralysis of the pharyngeal muscles who have obvious difficulty swallowing and choking when drinking water, injecting nutrient solution or nasogastric feeding through an indwelling nasogastric tube is a necessary option.

[0003] Most of the existing drugs are in the form of tablets. If they need to be injected through nasogastric tube, they need to be ground into powder, then mixed with warm water to make a medicine, and then injected with an injection. When the central pharmacy delivers the drugs, they are in their original state. Nurses need to grind them into powder and mix them into medicine before nasogastric tube administration. Because there are many procedures involved, it is impossible to ensure that the drugs will not leak during grinding and mixing, or when they are moved to the patient's bedside and sucked out with a syringe.

[0004] In view of the above, the present application proposes a nasogastric drug delivery device for solving the problem, which is designed as a device integrating grinding, brewing, suction and injection, and can ensure the cleanliness of the drug and the sufficient dosage of the drug, thereby reducing the waste of the drug. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a nasogastric drug delivery device, which solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A nasogastric drug delivery device, comprising:

[0008] Syringe, used to receive medicine mixed with powder and warm water;

[0009] A push rod is inserted into the syringe and is used to push the medicine out of the inner cavity of the syringe;

[0010] An inner rod is inserted into the push rod, and a liquid flow port is provided at one end of the inner rod;

[0011] The medicine delivery mechanism is threadedly connected to the end of the inner rod away from the push rod; the medicine delivery mechanism includes a medicine grinding part and a push-pull part;

[0012] The medicine grinding piece is used for crushing the tablets;

[0013] The push-pull member is arranged in the medicine grinding member, and the inner cavity of the medicine grinding member is communicated with the inner cavity of the inner rod by pushing and pulling.

[0014] Optionally, the length of the inner rod is greater than that of the push rod, and an end of the inner rod away from the liquid flow port is threadedly connected to an end of the push rod exposed outside the syringe.

[0015] Optionally, the medicine grinding device includes a medicine grinding tank and a medicine crushing shaft;

[0016] One end of the medicine grinding tank is threadedly connected to the inner rod;

[0017] The medicine crushing shaft is threadedly connected to the inner cavity of the medicine grinding tank, and the end thereof connected to the medicine grinding tank is in a cone shape.

[0018] Optionally, the push-pull member includes a bottom plate, a movable plate and a pull rod;

[0019] The bottom plate is semicircular and fixedly connected in the medicine grinding tank;

[0020] The movable plate is semicircular, one end of the arc is engaged with the inner cavity of the medicine grinding tank, and the other end is connected to the surface of the bottom plate through a slideway;

[0021] The pull rod is fixedly connected to the moving plate, and one end of the pull rod away from the moving plate penetrates the inner wall of the medicine grinding tank.

[0022] Optionally, a support block is fixedly connected to the surface of the medicine grinding tank, and the end of the pull rod exposed outside the medicine grinding tank is connected to the support block by a bolt.

[0023] Optionally, scale lines are provided on the surface of the cylinder.

[0024] The utility model provides a nasogastric drug delivery device, which has the following beneficial effects:

[0025] 1. Through the coordination between the medicine grinding part and the push-pull part, the operation of crushing the tablets can be completed in one place, which can reduce the problem of loss caused by the re-transfer of the crushed tablets, thereby achieving the effect of reducing loss.

[0026] 2. Through the coordinated setting between the inner rod, the liquid flow port and the medicine delivery mechanism, after the tablets are crushed, warm boiled water can be directly connected to dissolve the powder into the inner rod and then enter the syringe through the liquid flow port. There is no need to dissolve it again before extracting it. This can increase the utilization rate of the powder and reduce the problem of powder waste during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the liquid flow port of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the medicine delivery mechanism of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the medicine grinding tank of the utility model;

[0031] Figure 5 This is a schematic diagram of the push-pull structure of the utility model.

[0032] In the figure: 1. syringe; 2. push rod; 3. inner rod; 4. liquid flow port; 5. medicine delivery mechanism; 51. medicine grinding part; 511. medicine grinding tank; 512. medicine crushing shaft; 52. push-pull part; 521. bottom plate; 522. moving plate; 523. pull rod; 6. support block; 7. scale line. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0034] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head" and "tail" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In order to reduce the leakage when the ground medicine powder is moved to the patient's bedside and sucked with a syringe, the present application proposes a nasogastric drug delivery device, which is as follows:

[0036] For reference Figure 1-2 The present application is mainly composed of a syringe 1, a push rod 2 arranged in the syringe 1, an inner rod 3 inserted in the push rod 2, and a medicine delivery mechanism 5 located at one end of the inner rod 3. Through the structural setting of the present application, the tablets can be directly crushed in the medicine delivery mechanism 5, and the medicine powder can be delivered to the syringe 1 through the inner rod 3. During the delivery process, a suitable amount of warm water prepared in advance is connected to the medicine delivery mechanism 5, and the medicine powder is delivered to the syringe 1 through the inner rod 3. Then, after the delivery is completed, the inner rod 3 is moved upward until the push rod 2 blocks the liquid flow port 4, and the air in the syringe 1 is discharged to perform nasogastric feeding.

[0037] For reference Figure 1-2The structure of the syringe 1 and the push rod 2 is in the shape of an existing syringe; in order to facilitate the crushing of tablets before injection, the fusion of warm water and powder, and the delivery of medicine to be completed in one place, thereby reducing the problem of powder contamination and waste caused by transfer, an inner rod 3 is arranged in the push rod 2 and connected to the medicine delivery mechanism 5 to achieve this.

[0038] For reference Figure 1-2 The inner rod 3 is inserted into the push rod 2, and its length is greater than the push rod 2; and a liquid flow port 4 is set at one end of the inner rod 3 inserted into the push rod 2; when the medicine mixed with the powder and warm water is delivered through the medicine delivery mechanism 5, the inner rod 3 is rotated to make its liquid flow port 4 pass through the inner cavity of the push rod 2 and be exposed to the outside; at this time, the delivered medicine enters the inner cavity of the syringe 1 from the liquid flow port 4; after the delivery is completed, the inner rod 3 is moved again, and the inner rod 3 is moved upward until the push rod 2 completely covers the liquid flow port 4 on the inner rod 3.

[0039] Furthermore, in order to provide convenience and stability in adjusting the setting of the inner rod 3, the end of the inner rod 3 away from the flow outlet 4 is arranged to be threadedly connected to the inner cavity of the push rod 2, so that the inner rod 3 can be positioned when it is adjusted up or down to prevent sliding up and down.

[0040] For reference Figure 3-5 The medicine delivery mechanism 5 includes a medicine grinding member 51 and a push-pull member 52. Because most of the existing methods require the transfer of medicine powder after grinding the medicine separately, the loss of medicine powder will be caused during the transfer process. Therefore, a medicine delivery mechanism 5 is arranged on the inner rod 3 for connection. Specifically, the medicine grinding member 51 is threadedly connected to the inner rod 3 and is connected with the inner cavity of the inner rod 3. However, due to the connection, during the medicine grinding, the un-crushed medicine will directly fall into the inner rod 3 and flow into the syringe 1, which may easily cause discomfort to the patient. Therefore, a push-pull member 52 is arranged in the medicine grinding member 51. The push-pull member 52 prevents the crushed medicine from falling into the inner rod 3 and flowing into the syringe 1 during the medicine grinding by the medicine grinding member 51.

[0041] For reference Figure 3-5 The medicine grinding part 51 includes a medicine grinding tank 511 and a medicine crushing shaft 512; one end of the medicine grinding tank 511 is threadedly connected to the outer surface of the inner rod 3; the other end of the medicine grinding tank 511 is threadedly connected to the outer surface of the medicine crushing shaft 512; when grinding medicine, put the tablets into the medicine grinding tank 511, and connect the medicine crushing shaft 512 to the inside of the medicine grinding tank 511, and squeeze the tablets into medicine powder by twisting; in order to better perform the extrusion work, the end of the medicine crushing shaft 512 connected to the medicine grinding tank 511 is set in a cone shape.

[0042] For reference Figure 3-5The push-pull member 52 includes a bottom plate 521, a movable plate 522 and a pull rod 523. The bottom plate 521 is semicircular and fixedly connected to the medicine grinding tank 511. The movable plate 522 is semicircular, and one end of the arc is clamped with the inner cavity of the medicine grinding tank 511; the other end is connected to the surface of the bottom plate 521 through a slide; the pull rod 523 is fixedly connected to the movable plate 522; and the end away from the movable plate 522 passes through the medicine grinding tank 511; when the tablets are crushed, the movable plate 522 is pulled to move on the surface of the bottom plate 521, and the part covered by the movable plate 522 is opened, so that the medicine grinding tank 511 is connected with the inner rod 3, and the medicine powder enters the inner rod 3 from the movable plate 522, and flows into the syringe 1 from the liquid flow port 4 of the inner rod 3.

[0043] Among them, when the movable plate 522 is located at the medicine grinding tank 511 for shielding work, in order to ensure that it does not move, a support block 6 is set on the surface of the medicine grinding tank 511. After the movable plate 522 is adjusted, the pull rod 523 is fixedly connected to the support block 6 by bolts outside the medicine grinding tank 511 to ensure that the movable plate 522 does not slide.

[0044] For reference Figure 3-5 , wherein, when the push-pull member 52 is opened, the medicine crushing shaft 512 on the medicine grinding tank 511 can be directly taken out, and a part of the medicine powder adhered to the surface of the medicine crushing shaft 512 can be swept into the medicine grinding tank 511, and an adapted connecting shaft is connected in the medicine grinding tank 511, and a syringe pre-prepared with an appropriate amount of warm boiled water is injected into the medicine grinding tank 511 through the connecting shaft, and the warm boiled water in the syringe is injected into the medicine grinding tank 511 and flows into the inner rod 3. During the injection, a shaking action can be performed to dissolve all the medicine powder in the warm boiled water and flow into the inner rod 3. During the injection, the liquid outlet end of the syringe 1 is directed to reduce the injection liquid to flow out from the liquid outlet end of the syringe 1 until all the liquid in the inner rod 3 flows into the syringe 1, and then the inner rod 3 is moved upward to cover the liquid flow port 4, and then the air in the syringe 1 is discharged, and the milliliters of the medicine solution are checked through the scale line 7 on the surface of the syringe 1, and the mixed medicine solution is connected to the nasogastric tube and slowly injected.

[0045] In the utility model, the working steps of the device are as follows:

[0046] 1. First, put the tablets into the medicine grinding tank 511 and grind them into powder by the medicine crushing shaft 512;

[0047] 2. Next, rotate the inner rod 3 to expose the liquid flow port 4 provided at one end of the inner rod 3;

[0048] 3. Then, pull the pull rod 523 to drive the moving plate 522 to move on the bottom plate 521. Then, take out the medicine crushing shaft 512 and use a tool to sweep the sticky medicine powder on the surface into the medicine grinding tank 511. Connect an adapted connecting shaft to the medicine grinding tank 511. Use a syringe with a proper amount of warm water prepared in advance to connect the connecting shaft and inject warm water. Shake the hand during the injection to make the medicine powder easier to dissolve in the warm water.

[0049] 4. Finally, during the injection, the outlet end of the syringe 1 is facing upward to reduce the risk of liquid outflow. After all the warm boiled water is injected and all the liquid in the inner rod 3 is ensured to have flowed into the syringe 1, adjust the movement of the inner rod 3 again until it completely blocks the liquid outlet 4, and after adjusting to exhaust the air in the syringe 1, connect the nasogastric tube and slowly inject the liquid medicine.

[0050] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A nasogastric drug delivery device, characterized in that: include, A syringe (1) is used to receive a medicine obtained by mixing medicine powder with warm water; A push rod (2) is inserted into the syringe (1) and is used to push the medicine out of the inner cavity of the syringe (1); An inner rod (3) is inserted into the push rod (2), and a liquid flow port (4) is provided at one end through which the inner rod (3) passes; A medicine delivery mechanism (5) is threadedly connected to an end of the inner rod (3) away from the push rod (2); the medicine delivery mechanism (5) comprises a medicine grinding member (51) and a push-pull member (52); The medicine grinding member (51) is used for crushing the medicine tablets; The push-pull member (52) is disposed in the medicine-grinding member (51) and causes the inner cavity of the medicine-grinding member (51) to communicate with the inner cavity of the inner rod (3) by pushing and pulling.

2. The nasogastric drug delivery device according to claim 1, characterized in that: The length of the inner rod (3) is greater than that of the push rod (2), and the end of the inner rod (3) away from the liquid flow port (4) is threadedly connected to the end of the push rod (2) exposed outside the syringe (1).

3. The nasogastric drug delivery device according to claim 1, characterized in that: The medicine grinding device (51) comprises a medicine grinding tank (511) and a medicine crushing shaft (512); One end of the medicine grinding tank (511) is threadedly connected to the inner rod (3); The medicine crushing shaft (512) is threadedly connected to the inner cavity of the medicine grinding tank (511), and the end thereof connected to the medicine grinding tank (511) is tapered.

4. The nasogastric drug delivery device according to claim 3, characterized in that: The push-pull member (52) comprises a bottom plate (521), a movable plate (522) and a pull rod (523); The bottom plate (521) is semicircular and fixedly connected to the medicine grinding tank (511); The movable plate (522) is semicircular, and one end of the arc is engaged with the inner cavity of the medicine grinding tank (511); the other end is connected to the surface of the bottom plate (521) through a slideway; The pull rod (523) is fixedly connected to the moving plate (522), and one end of the pull rod (523) away from the moving plate (522) penetrates the inner wall of the medicine grinding tank (511).

5. The nasogastric drug delivery device according to claim 4, characterized in that: A support block (6) is fixedly connected to the surface of the medicine grinding tank (511), and one end of the pull rod (523) exposed outside the medicine grinding tank (511) is connected to the support block (6) via a bolt.

6. The nasogastric drug delivery device according to claim 1, characterized in that: The surface of the syringe (1) is provided with scale lines (7).

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