Direct administration device for intestines and stomach

Abstract

The invention relates to the technical field of gastrointestinal dosing devices, in particular to an gastrointestinal direct dosing device which comprises a syringe, a pipeline assembly is arranged on the side face of the syringe, an injection assembly is arranged in the syringe, the pipeline assembly comprises an injection tube, a supporting piece is arranged on the side face of the injection tube, and a connecting groove is formed in the side face of the injection tube. An injection port and a material supplementing port are fixedly formed in the side face of the injection pipe, the injection assembly comprises a fixing frame, a push rod and a piston block are arranged on the side face of the fixing frame, a partition plate is clamped and attached to the interior of the injection barrel, and a linkage groove and a movable cavity are formed in the side face of the partition plate. By arranging the pipeline assembly and the injection assembly, the discomfort of a patient in administration can be effectively relieved, unified preparation of multiple drugs can be carried out, then single supply and double-channel supply are carried out, administration operation of different drugs can be carried out only through one-time operation, the administration treatment time is shortened, and the administration efficiency is improved. Therefore, the treatment efficiency and comfort of the patient are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of enteral drug delivery devices, in particular to an enteral direct delivery type drug delivery device. Background Art

[0002] Currently, treatments for gastrointestinal diseases often require localized drug delivery to enhance efficacy and minimize systemic side effects. Traditional drug delivery methods, such as oral preparations, are limited by gastrointestinal absorption efficiency, while conventional injections or enemas can lead to uneven drug distribution and patient discomfort.

[0003] Secondly, in the existing technology, some gastrointestinal drug delivery devices adopt a single-channel design, which cannot meet the needs of multi-drug combined administration, resulting in multiple operations, increasing patient pain and treatment time. In addition, traditional drug delivery devices lack flexible support for the gastrointestinal wall, and the direct impact of drugs on the mucosa can easily cause discomfort or even damage. Therefore, there is an urgent need for a gastrointestinal direct drug delivery device that can realize multi-drug packaging and mixed administration, adapt to different patient anatomical structures, and reduce drug delivery discomfort. We propose a gastrointestinal direct delivery device. Summary of the Invention

[0004] In order to overcome the technical problems of uneven drug distribution, patient discomfort and inability to meet the needs of combined multi-drug administration in the above-mentioned conventional injection or enema methods, which result in multiple operations, increased patient pain and treatment time, the present invention provides a direct gastrointestinal drug delivery device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a syringe, a pipe assembly is provided on the side of the syringe, and an injection assembly is provided inside the syringe; The pipeline assembly includes an injection tube, a support plate and a connection groove are provided on the side of the injection tube, and an injection port and a feed port are fixedly provided on the side of the injection tube; The injection assembly includes a fixed frame, a push rod and a piston block are provided on the side of the fixed frame, a partition is provided on the inside of the injection cylinder for clamping and fitting, a linkage groove and a movable cavity are provided on the side of the partition, a linkage rod, a first spring and a constraint block are provided inside the linkage groove, a partition block and a constraint groove are provided inside the movable cavity, a movable groove is provided on the inside of the injection cylinder, a matching plate is movably installed inside the movable groove, a fixed block is symmetrically fixedly installed on the lower side of the matching plate, a one-way plate is rotatably installed on the side of the round rod of the fixed block, and a torsion spring is fixedly connected between the inner side of the one-way plate and the side of the fixed block.

[0006] Furthermore, the injection tube is threadedly sleeved on the discharge port of the injection barrel. The injection tube is a round tube of soft material with a single-side hollow shape. The injection tube is provided with discharge holes equidistantly extending through it on the side away from the injection barrel. A slot is provided on the side of the injection tube near the discharge hole, and the support plate is fixedly installed on the wall of the slot.

[0007] Furthermore, the connecting groove is opened on the wall of the groove, the injection port corresponds to the connecting groove, the feeding port penetrates to the internal position of the injection tube, and the injection port and the feeding port are puncture interfaces equipped with rubber sealing plugs.

[0008] Furthermore, the fixing frame is fixedly sleeved on the side of the injection barrel, and a card slot is symmetrically opened on the upper side of the fixing frame. A card rod is installed inside the card slot, and a constraint plate is fixedly installed on the side of the card rod. The push rod is movably installed inside the circular hole of the constraint plate and the push rod extends to the internal position of the injection barrel, the piston block is fixedly installed on the side of the push rod, and the arc surface of the piston block is fitted on the inner side of the injection barrel. The partition is arranged between the two groups of piston blocks and fits directly with them.

[0009] Furthermore, a linkage groove is provided on the upper side of the partition and a thread is provided on the wall of the linkage groove at the upper position, a movable cavity is provided on the bottom wall of the linkage groove, a linkage rod is movably installed inside the linkage groove and the linkage rod passes through the partition to its bottom side, a first spring is fixedly installed on the side of the linkage rod and the other end of the first spring is attached to the wall of the linkage groove, and the first spring is movably sleeved on the side position of the linkage rod.

[0010] Furthermore, the constraint block is fixedly sleeved on the side of the linkage rod and the constraint block is movably set in the internal position of the linkage groove. A spacer block is movably set inside the movable cavity and the spacer block is movably sleeved on the side position of the linkage rod. A constraint groove is opened on the upper side of the spacer block corresponding to the position of the constraint block.

[0011] Furthermore, a limit block is fixedly installed on the lower side of the injection cylinder corresponding to the position of the movable groove, the upper side of the matching plate is affixed to the lower side of the partition and the linkage rod, and a second spring is symmetrically fixedly installed on the lower side of the matching plate and the other end of the second spring is affixed to the inner side of the limit block.

[0012] Furthermore, the one-way plate is fitted on the side of the matching plate, the arc surface of the one-way plate can fit on the inner side of the injection cylinder, and the torsion spring is movably sleeved on the side of the round rod of the fixed block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can effectively alleviate the discomfort of drug administration to patients by providing a pipeline assembly and an injection assembly, and can prepare multiple drugs in a unified manner, and then perform single feeding and dual-channel feeding, so that different drugs can be administered in one operation, which speeds up the drug administration time and ensures the efficiency and comfort of patient treatment.

[0014] 2. The present invention provides a support sheet, an injection port, and surrounding components. Water is injected through the injection port to inflate the support sheet, thereby forming a flexible support for the gastrointestinal wall, preventing the drug from directly impacting the mucosa and reducing patient discomfort. In addition, the inflation degree of the support sheet can be adjusted by varying the amount of water injected, which can adapt to individual differences in the gastrointestinal cavity and ensure accurate drug delivery and controllable support force.

[0015] 3. The present invention provides a feeding port, which allows the addition of other drugs during the drug administration process without disassembling the device, thereby meeting dynamic treatment needs and ensuring different treatment plans for drug administration operations.

[0016] 4. The present invention divides the syringe into two independent chambers by setting a partition and its surrounding components, and through the partition and double piston block structure set in the syringe, different drugs can be stored at the same time; combined with the linkage design of the linkage rod and the partition block, it can not only realize dual-channel independent drug delivery, but also mix drugs by rotation, avoiding the tedious operation of multiple syringe changes, and significantly improving drug delivery efficiency.

[0017] 5. The present invention can spatially separate the syringe barrel by providing a matching plate and its surrounding components, so that the materials can be supplied separately. In addition, the matching plate is elastically supported by a second spring so that it can move to a position inside the movable groove to adapt to the discharge of the mixed medicine.

[0018] 6. The present invention provides a one-way plate and its surrounding components. When administering a single drug, the one-way plate automatically closes under the action of a torsion spring, ensuring that the other channel is completely isolated when administering a single drug, thereby preventing drug mixing. When administering a mixed drug, the linkage rod drives the spacer to rotate and stir the drug, while the matching plate drives the one-way plate to slide into the injection tube. The torsion spring causes the one-way plate to open and close periodically, further stirring the drug and avoiding excessive local concentration that irritates the tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial structure of the pipeline assembly of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 Schematic diagram of the cross-sectional structure of the injection barrel of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the injection assembly of the present invention; Figure 6 Schematic diagram of the partial structure of the push rod of the present invention; Figure 7 Schematic diagram of the local structure of the separator of the present invention; Figure 8 This is a schematic diagram of the explosion structure around the spacer of the present invention; Figure 9 For the present invention Figure 5 A schematic diagram of the enlarged structure at point B; Figure 10 It is a schematic diagram of the local structure of the matching plate of the present invention.

[0020] Among them: 1. syringe; 2. pipeline assembly; 21. injection tube; 211. discharge hole; 22. slot; 23. support plate; 24. connecting slot; 25. injection port; 26. feeding port; 3. injection assembly; 31. fixing frame; 311. slot; 32. locking rod; 33. constraint plate; 34. push rod; 341. piston block; 35. partition; 351. linkage slot; 352. linkage rod; 353. first spring; 354. constraint block; 36. movable chamber; 361. partition; 362. constraint slot; 37. movable slot; 371. limit block; 38. matching plate; 381. second spring; 39. fixing block; 391. one-way plate; 392. torsion spring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels.

[0022] Example: Figure 1 As shown, a direct-dose parenteral medication dispenser includes a syringe 1. The syringe 1 is a common reusable syringe barrel. A pipe assembly 2 is provided on the side of the syringe 1 to assist in comfortable medication administration. An injection assembly 3 capable of multi-state medication administration is provided inside the syringe 1. The provided pipe assembly 2 can adapt to different patient anatomical structures and reduce discomfort during drug administration through flexible support; like Figures 1 to 3As shown, the pipeline assembly 2 includes an injection tube 21 threadedly sleeved on the discharge port of the injection barrel 1, the injection tube 21 is a round tube of soft material (such as silicone and polyethylene) with a single-side hollow shape, and discharge holes 211 are equidistantly provided on the side of the injection tube 21 away from the injection barrel 1, and the discharge holes 211 are round holes. A groove 22 is provided on the side of the injection tube 21 near the discharge hole 211, and the groove 22 is a circular groove. A support piece 23 is fixedly installed on the wall of the groove 22, and the support piece 23 is an elastic and easily deformable circular piece. A connecting groove 24 that passes through the injection tube 21 is provided on the wall of the groove 22, and the connecting groove 24 is a cylindrical groove. An injection port 25 is fixedly provided on the side of the injection tube 21 and the injection port 25 corresponds to the connecting groove 24. The injection port 25 is a puncture interface equipped with a rubber sealing plug, and a feeding port 26 is fixedly provided on the other side of the injection tube 21 and the feeding port 26 passes through the injection Inside the tube 21, the feeding port 26 is a puncture interface equipped with a rubber sealing plug. The injection port 25 and the feeding port 26 can be sealed with a rubber sealing plug after the material is injected to prevent leakage. Specifically, the injection tube 21 is placed into the target part of the gastrointestinal tract under the guidance of an endoscope, and the injection port 25 is inserted into the injection port 25 through the needle of another syringe, and a corresponding amount of water is injected into the interior thereof. The water is transported from the connecting groove 24 to the inside of the slot 22 to squeeze the support sheet 23 to deform and swell it. The deformed support sheet 23 can support the gastrointestinal tract, and then the injection tube 21 is dosed through the syringe 1. The drug is released to the gastrointestinal mucosa through the discharge hole 211, which can prevent the drug from impacting the gastrointestinal side wall and causing discomfort. The feeding port 26 provided in addition can be used to supply other drugs through the insertion of the needle of another syringe into the feeding port 26, so that the other drugs enter the injection tube 21 and are administered together. The provided injection assembly 3 can perform multi-drug storage and multi-state supply operations, so that when administering multiple drugs, it is unnecessary to use multiple sets of syringes 1 to repeat the administration operation, which affects the administration efficiency and time; like Figures 4 to 10As shown, the injection assembly 3 includes a fixing frame 31 fixedly sleeved on the side of the injection barrel 1, the fixing frame 31 is a double-raised block with a circular groove on the side, a clamping groove 311 is symmetrically opened on the upper side of the fixing frame 31, the clamping groove 311 is a cylindrical groove, a clamping rod 32 is clamped and installed inside the clamping groove 311, the clamping rod 32 is a cylindrical rod, a restraining plate 33 is fixedly installed on the side of the clamping rod 32, the restraining plate 33 is a convex block with a circular hole on the side, a push rod 34 is movably installed inside the circular hole of the restraining plate 33 and the push rod 34 extends to the internal position of the injection barrel 1, the push rod 34 is a "T"-shaped round rod, a piston block 341 is fixedly installed on the side of the push rod 34, and the piston The arc surface of the block 341 fits in the inner side of the syringe 1. The piston block 341 is a semicircular block made of elastic rubber. A partition 35 is provided inside the syringe 1 and is provided between the two groups of piston blocks 341 and fits in the straight surface thereof. Specifically, the push rod 34 drives the piston block 341 to reciprocate in the syringe 1. The partition 35 separates the syringe into two independent chambers to achieve dual drug packaging and independent administration. In addition, a restraining plate 33 is provided to restrain the push rod 34. By pulling the clamping rod 32 out of the clamping slot 311, the push rod 34 and the piston block 341 can be disassembled through the restraining plate 33 for replacement. The upper side of the partition 35 is provided with a linkage groove 351 and the wall surface of the linkage groove 351 at the upper position is provided with a thread. The linkage groove 351 is a cylindrical groove with an I-shaped cross section. A movable cavity 36 that penetrates the partition 35 is provided on the bottom wall of the linkage groove 351. The movable cavity 36 is a rectangular groove. A linkage rod 352 is movably installed inside the linkage groove 351 and the linkage rod 352 penetrates the partition 35 to its bottom side. The linkage rod 352 is a "T"-shaped round rod and its side is provided with a thread. It is fixedly installed on the side of the linkage rod 352. There is a first spring 353 and the other end of the first spring 353 is attached to the wall of the linkage groove 351. The first spring 353 is movably sleeved on the side of the linkage rod 352. A constraint block 354 is fixedly sleeved on the side of the linkage rod 352 and the constraint block 354 is movably set in the internal position of the linkage groove 351. The constraint block 354 is a regular hexagonal block with a circular groove on the side. A spacer 361 is movably provided inside the active cavity 36 and the spacer 361 is movably sleeved on the side of the linkage rod 352. The spacer 361 is a side opening. The rectangular block with a circular groove is provided with a constraint groove 362 on the upper side of the spacer block 361 corresponding to the position of the constraint block 354. The constraint groove 362 is a regular hexagonal groove. Specifically, in the initial state, the spacer block 361 is clamped in the active cavity 36, and cooperates with the partition 35 to isolate the inner cavity of the syringe 1 to achieve dual-channel independent drug delivery. When mixed use is used, the linkage rod 352 is pressed downward to squeeze the first spring 353 to deform, and the synchronous constraint block 354 is clamped in the internal position of the constraint groove 362, and then the linkage rod 352 is moved to the linkage groove 36. 51 is internally threaded and installed, and the spacer 361 is constrained by the constraint block 354 to rotate along with the linkage rod 352. At this time, the internal space of the syringe 1 is connected and the internal materials can be mixed. Then, the linkage rod 352 is loosened and the linkage rod 352 is elastically supported by the first spring 353 to drive the constraint block 354 out of the constraint groove 362 to the inside of the linkage groove 351. At this time, the spacer 361 is reset to the inside of the active cavity 36. At the same time, the push rod 34 is pressed to allow the mixed materials to be administered through the piston block 341. The inner side of the injection cylinder 1 is symmetrically provided with a movable groove 37 corresponding to the discharge position. The movable groove 37 is a rectangular groove. A limit block 371 is fixedly installed at the position corresponding to the movable groove 37 on the lower side of the injection cylinder 1. The limit block 371 is a rectangular block with a hollow side. A matching plate 38 is movably installed inside the movable groove 37 and the upper side of the matching plate 38 is attached to the lower side of the partition 35 and the linkage rod 352. The matching plate 38 is a rectangular plate. A second spring 381 is symmetrically fixedly installed on the lower side of the matching plate 38 and the second spring 381 The other end is fitted to the inner side of the limit block 371, and a fixed block 39 is symmetrically fixed on the lower side of the matching plate 38. The fixed block 39 is a rectangular block with round rods fixed on both sides. A one-way plate 391 is rotatably installed on the side of the round rod of the fixed block 39 and the one-way plate 391 is fitted to the side of the matching plate 38. The one-way plate 391 is a concave semicircular block. The arc surface of the one-way plate 391 can fit the inner side of the injection barrel 1. A torsion spring 392 is fixedly connected between the inner side of the one-way plate 391 and the side of the fixed block 39, and the torsion spring 392 The movably sleeved portion is located on the side of the round rod of the fixed block 39. The torsion spring 392 is a standard torsion spring with both ends bent ninety degrees to provide a reset torque. Specifically, the matching plate 38 can cooperate with the partition 35 and the partition block 361 to isolate the inside of the syringe 1, so that the push rod 34 pushes the piston block 341 to perform a single-channel drug administration operation. In addition, when administering the drug, the one-way plate 391 can be rotated to open and flow into the inside of the syringe 21. The other set of one-way plates 391 is elastically reset by the torsion spring 392 to the other channel. The channel is closed and isolated to avoid mixing when a single drug is used; when a mixed drug is used, the matching plate 38 is pushed by the linkage rod 352 to squeeze the second spring 381 to deform, and the matching plate 38 slides into the internal position of the limit block 371. At this time, the fixed block 39 and the one-way plate 391 slide out of the syringe 1 to the inside of the injection tube 21. When the mixed drug flows out of the syringe 1, it can still push the one-way plate 391 to rotate. The one-way plate 391 will open and close under the elastic force of the torsion spring 392, further stirring and mixing the drugs.

[0023] Working principle: Before administration: First, assemble the tools. Insert the mating plate 38, along with the second spring 381 and the surrounding components of the fixing block 39, into the movable groove 37. Then, snap the partition 35 and its internal components into the position inside the syringe 1. The partition 35 corresponds to the position of the mating plate 38 to form a double area. The second step is to prepare the medicine. Add appropriate different types of medicines to the two areas inside the syringe 1. Then, insert the piston block 341 into the syringe 1 by the push rod 34, close to the inner side of the syringe 1 and the side of the partition 35. The restraining plate 33 slides on the side of the push rod 34 to clamp the clamping rod 32 into the clamping groove 311 and fix it, so that the push rod 34 is constrained and supported to be stable. Finally, the syringe 21 is threadedly adjusted to the discharge port of the syringe 1 to complete the preparation of the medicine. When administering medicine: the first step is to confirm the position by inserting the cannula, and then send the injection tube 21 into the corresponding position of the patient's stomach and intestines. Insert the needle of another syringe into the injection port 25 to inject water. Inject an appropriate amount of water according to the gastrointestinal conditions of different patients. The water flows from the inside of the connecting groove 24 into the inside of the slot 22, supporting the support sheet 23 to make it swell and support the stomach and intestine wall, waiting for subsequent medication. When changing the position, insert the needle of an empty syringe into the injection port 25 to extract water. The elastic force of the support sheet 23 itself resets it to be flush with the wall of the injection tube 21. Send the injection tube 21 to other positions and perform the same operation to support the stomach and intestine wall. In the second step, a single drug is administered. By pushing the corresponding push rod 34, the piston block 341 moves inside the syringe 1 and on the side of the partition 35 to discharge the drug in the corresponding space. At this time, the drug can push the corresponding one-way plate 391 to rotate open and flow out into the injection tube 21 and be discharged from the discharge hole 211 for administration. The other set of one-way plates 391 fits on the side of the matching plate 38 under the elastic force of the torsion spring 392 to block the other channel to prevent drug mixing. The third step is to mix the medicine and administer the drug. Press the linkage rod 352 downward to slide inside the linkage groove 351. The synchronous constraint block 354 is clamped in the internal position of the constraint groove 362. The rotating linkage rod 352 is threadedly installed in the internal position of the linkage groove 351. At the same time, the spacer 361 is constrained by the constraint block 354 and rotates with the linkage rod 352. The active cavity 36 is connected to the opened medicine. At the same time, the rotating spacer 361 stirs and mixes the medicine. Push the two sets of push rods 34 to squeeze the medicine through the piston block 341. When the piston block 341 is about to reach the position of the spacer 361, screw the linkage rod 352 out of the linkage groove 351. At this time, the spacer block 361 is reset and snapped into place inside the active chamber 36, and the restraining block 354 is disengaged from the restraining groove 362 to the linkage groove 351, so that the piston block 341 can be pushed to the bottom; synchronously, the matching plate 38 is pushed by the linkage rod 352 to squeeze the second spring 381 to deform, and the matching plate 38 slides into the limit block 371, driving the fixed block 39 and the one-way plate 391 to slide out of the syringe 1 to the inside of the injection tube 21. When the mixed drug flows out of the syringe 1, it can still push the one-way plate 391 to rotate. The one-way plate 391 opens and closes under the elastic force of the torsion spring 392, further stirring and mixing the drug. The fourth step is to add medicine, by inserting the needle of another syringe into the feeding port 26 and pushing the medicine, the other medicine can be injected into the injection tube 21 and mixed with the medicine to perform the drug administration operation; After drug administration: First, remove the tube. Similarly, extract the water inside the connecting groove 24 and the slot 22 to make the connecting groove 24 deform and reset. At this time, the injection tube 21 can be removed and discarded. The second step is to disassemble the tools, pull the entire structure of the partition 35 out of the inside of the syringe 1, and then pour out the entire component of the matching plate 38. These components and the syringe 1 can be reused after uniform disinfection using reusable materials. The push rod 34 and its surrounding components are discarded. The reusable components (such as the syringe 1 and the partition 35) need to be sterilized at high temperature and high pressure before use.

[0024] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A gastrointestinal direct administration type drug delivery device, comprising a syringe (1), a pipe assembly (2) being provided on the side of the syringe (1), and an injection assembly (3) being provided inside the syringe (1); Its characteristics are: The pipeline assembly (2) includes an injection tube (21), a support plate (23) and a connection groove (24) are provided on the side of the injection tube (21), and an injection port (25) and a feeding port (26) are fixedly provided on the side of the injection tube (21); The injection assembly (3) includes a fixed frame (31), a push rod (34) and a piston block (341) are provided on the side of the fixed frame (31), a partition (35) is provided inside the injection barrel (1) for clamping and fitting, a linkage groove (351) and a movable cavity (36) are provided on the side of the partition (35), a linkage rod (352), a first spring (353) and a constraint block (354) are provided inside the linkage groove (351), a partition block (361) and a constraint groove (362) are provided inside the movable cavity (36), a movable groove (37) is provided on the inner side of the injection barrel (1), a matching plate (38) is movably installed inside the movable groove (37), a fixed block (39) is symmetrically fixedly installed on the lower side of the matching plate (38), a one-way plate (391) is rotatably installed on the round rod side of the fixed block (39), and a torsion spring (392) is fixedly connected between the inner side of the one-way plate (391) and the side of the fixed block (39).

2. The enteral direct administration device according to claim 1, characterized in that: The injection tube (21) is threadedly sleeved on the discharge port of the injection barrel (1). The injection tube (21) is a single-side hollowed-out round tube made of a soft material. A discharge hole (211) is equidistantly provided on the side of the injection tube (21) away from the injection barrel (1). A slot (22) is provided on the side of the injection tube (21) near the discharge hole (211). The support sheet (23) is fixedly mounted on the wall of the slot (22).

3. The direct-gastrointestinal administration device according to claim 2, characterized in that: The connecting groove (24) is formed on the wall of the slot (22), the injection port (25) corresponds to the connecting groove (24), and the feeding port (26) extends through the interior of the injection tube (21). The injection port (25) and the feeding port (26) are puncture interfaces equipped with rubber sealing plugs.

4. The direct-gastrointestinal administration device according to claim 3, characterized in that: The fixing frame (31) is fixedly sleeved on the side of the injection barrel (1), and a slot (311) is symmetrically opened on the upper side of the fixing frame (31). A clamping rod (32) is clamped and installed inside the slot (311), and a restraining plate (33) is fixedly installed on the side of the clamping rod (32). The push rod (34) is movably installed inside the circular hole of the restraining plate (33) and the push rod (34) extends to the internal position of the injection barrel (1). The piston block (341) is fixedly installed on the side of the push rod (34), and the arc surface of the piston block (341) is in contact with the inner position of the injection barrel (1). The partition plate (35) is arranged between the two groups of piston blocks (341) and is in direct contact with them.

5. The direct-gastrointestinal administration device according to claim 4, characterized in that: A linkage groove (351) is provided on the upper side of the partition (35), and a thread is provided on the wall of the linkage groove (351) at the upper position. The movable cavity (36) is provided on the bottom wall of the linkage groove (351). The linkage rod (352) is movably installed inside the linkage groove (351) and the linkage rod (352) passes through the partition (35) to the bottom side thereof. The first spring (353) is fixedly installed on the side of the linkage rod (352) and the other end of the first spring (353) is attached to the wall of the linkage groove (351). The first spring (353) is movably sleeved on the side of the linkage rod (352).

6. The direct-gastrointestinal administration device according to claim 5, characterized in that: The constraint block (354) is fixedly sleeved on the side of the linkage rod (352) and the constraint block (354) is movably arranged at an internal position of the linkage groove (351). A spacer block (361) is movably arranged inside the movable cavity (36) and the spacer block (361) is movably sleeved on the side of the linkage rod (352). A constraint groove (362) is provided on the upper side of the spacer block (361) corresponding to the position of the constraint block (354).

7. The direct-gastrointestinal administration device according to claim 6, characterized in that: A limit block (371) is fixedly installed on the lower side of the injection cylinder (1) at a position corresponding to the movable groove (37), and the upper side of the matching plate (38) is attached to the lower side of the partition (35) and the linkage rod (352). A second spring (381) is symmetrically fixedly installed on the lower side of the matching plate (38), and the other end of the second spring (381) is attached to the inner side of the limit block (371).

8. The parenteral direct administration device according to claim 7, characterized in that: The one-way plate (391) is fitted on the side of the matching plate (38), and the arc surface of the one-way plate (391) can fit on the inner side of the injection cylinder (1). The torsion spring (392) is movably sleeved on the side of the round rod of the fixed block (39).

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