Nasal feeding medicine injector with grinder

Abstract

The nasal feeding medicine injector with the grinder relates to the technical field of medicine injectors and comprises a medicine injection cylinder, a threaded groove is formed in one end of the medicine injection cylinder, an end cover is connected to the inner wall of the threaded groove in a threaded mode, a connecting pipe is fixed to the middle of the end cover, and a mounting hole is formed in the middle of the other end of the medicine injection cylinder. A piston rod is inserted into the inner wall of the mounting hole, a push-pull disc is fixed to one end of the outer wall of the piston rod, a piston sleeve is arranged on the outer wall of the push-pull disc, the outer wall of the piston sleeve is matched with the inner wall of the medicine injection cylinder, a threaded hole is formed in one end of the piston rod, and a screw is in threaded connection with the inner wall of the threaded hole. According to the nasal feeding medicine injector, the whole nasal feeding medicine injector is provided with the grinding device, medicine can be ground conveniently, the ground medicine and liquid medicine can be mixed conveniently, the functions of grinding the medicine and mixing the medicine can be achieved in the same medicine injector, medicine injection operation does not need to be conducted through a plurality of containers, and waste caused by residual medicine in the containers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine injectors, in particular to a nasogastric medicine injector with a grinder. Background Art

[0002] Nasogastric feeding is a technique that inserts a catheter into the stomach through the nasal cavity and infuses food, water and medicine into the tube to maintain the patient's nutritional therapy. Clinically, patients who cannot take medicine normally often need to take medicine through nasogastric feeding, and the commonly used tool is a nasogastric feeding injector.

[0003] After searching, the patent publication number CN216603533U is a manual pusher for nasogastric feeding, which includes a cylinder and scale lines. The outer wall of the cylinder is provided with scale lines, the inner cavity of the cylinder is provided with a piston, the left wall of the piston is fixedly connected with a push rod, the push rod is circular, and the push rod is fixedly connected with a round plate at one end away from the piston. In combination with the above patents, it is found that the prior art has the following shortcomings: nasogastric feeding patients need to fully grind the medicine and introduce it into the container, add water and mix it, and then use a syringe or injector to inject it into the nasogastric tube. This process requires the medicine to pass through three containers before entering the patient's body. The operation is more troublesome, and the residue in the container causes waste of medicine, thereby affecting the dosage of the medicine entering the body and affecting the treatment effect. Therefore, it is urgent to design a nasogastric feeding injector with a grinder to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a nasogastric drug injection device with a grinder. Its advantages are that the action of reciprocatingly pushing the piston rod and the screw connection between the threaded hole and the screw rod drives the rotating shaft and the grinding knife to reciprocate, which is convenient for grinding the medicine and mixing the ground medicine with the medicine solution. The functions of grinding and mixing medicine can be realized in the same drug injection device, and the operation is simple.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A nasogastric injection device with a grinder comprises an injection barrel, a threaded groove is provided at one end of the injection barrel, and an end cap is screwed onto the inner wall of the threaded groove, a connecting tube is fixed at the middle position of the end cap, a mounting hole is provided at the middle position of the other end of the injection barrel, and a piston rod is inserted into the inner wall of the mounting hole, a push-pull disk is fixed at one end of the outer wall of the piston rod, and a piston sleeve is provided on the outer wall of the push-pull disk, the outer wall of the piston sleeve is matched with the inner wall of the injection barrel, a threaded hole is provided at one end of the piston rod, and a screw is screwed onto the inner wall of the threaded hole, a rotating shaft is fixed at one end of the screw, a plurality of rows of grinding knives distributed at equal distances are fixed to the outer wall of the rotating shaft, and a positioning component is provided between the outer wall of the rotating shaft and the inner wall of the injection barrel.

[0007] Through the above technical scheme: the rotating grinding knife can be used to grind the medicine, and when the medicine is sucked and injected, the ground medicine and the medicine can be mixed, thereby realizing the functions of grinding and mixing medicine in the same injector.

[0008] The utility model is further configured that a nasogastric feeding tube is provided on the outer wall of the connecting tube.

[0009] Through the above technical solution: it is convenient to inject medicine.

[0010] The utility model is further configured such that the positioning assembly includes a cross fixed on one side of the circumferential inner wall of the injection barrel, and a through hole is opened in the middle position of the cross, the rotating shaft passes through the inner wall of the through hole, the cross-section of the through hole is cross-shaped, and the outer wall of the rotating shaft is fixed with a positioning ring arranged in the through hole.

[0011] Through the above technical solution: the positioning ring is driven to rotate in the through hole through the limiting effect of the positioning ring and the through hole and the threaded connection effect of the threaded hole and the screw, ensuring that the rotating shaft rotates in place.

[0012] The utility model is further configured that the grinding knife is designed to be double-edged and the grinding knife is arranged obliquely.

[0013] Through the above technical solution: the grinding effect is increased.

[0014] The utility model is further configured that an annular sealing groove is provided at one end of the medicine injection barrel and one end of the end cover, and a sealing ring is provided on the inner wall of the annular sealing groove.

[0015] Through the above technical solution: the sealing performance of the end cover and the injection barrel is guaranteed to avoid the problem of drug leakage.

[0016] The utility model is further configured that a piston handle is fixed to the other end of the piston rod, and reinforcing ribs distributed at equal distances are fixed between one side of the piston handle and the outer wall of the piston rod.

[0017] Through the above technical solution: the movement process of the piston rod is controlled by the piston handle, which is easy to operate.

[0018] The utility model is further configured that a limiting ring is fixed on one side of the outer wall of the piston rod, and the limiting ring is fitted on the outer wall of the other end of the injection barrel, and curling edges are fixed on both sides of one end of the outer wall of the injection barrel close to the piston handle.

[0019] Through the above technical solution, it is convenient to limit the movement path of the piston rod.

[0020] The beneficial effects of the utility model are:

[0021] 1. A nasogastric drug injection device with a grinder, which can be conveniently placed in the interior of the drug injection device by removing the end cover, and the entire nasogastric drug injection device carries a grinding device through the cooperation of the provided piston rod, rotating shaft, threaded hole, screw, positioning assembly and grinding knife, etc., which drives the rotating shaft and the grinding knife to reciprocate under the action of reciprocating pushing of the piston rod and the screw connection of the threaded hole and the screw, so as to facilitate the grinding of the drug.

[0022] 2. A nasogastric injection device with a grinder. When sucking and injecting medicine, the activity of the piston rod can also drive the rotating shaft and the grinding knife to rotate, which is convenient for mixing the ground medicine with the medicine, thereby realizing the functions of grinding and mixing medicine in the same injection device. The operation is simple, and there is no need to inject medicine through multiple containers, avoiding waste caused by residual medicine in the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a nasogastric medication injector with a grinder proposed by the utility model;

[0024] Figure 2 This is a cross-sectional view of a medicine injection barrel of a nasogastric medicine injection device with a grinder proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the mounting hole and thread groove structure of a nasogastric medication injector with a grinder proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the end cover and annular sealing groove structure of a nasogastric medicine injector with a grinder proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the push-pull plate and threaded hole structure of a nasogastric medicine injector with a grinder proposed by the utility model;

[0028] Figure 6 The utility model discloses a schematic diagram of the screw and positioning ring structure of a nasogastric medicine injector with a grinder.

[0029] In the figure: 1. injection cartridge; 2. curling edge; 3. piston handle; 4. reinforcing rib; 5. end cover; 6. nasogastric tube; 7. piston rod; 8. limiting ring; 9. piston sleeve; 10. cross; 11. rotating shaft; 12. grinding knife; 13. sealing ring; 14. connecting pipe; 15. mounting hole; 16. threaded groove; 17. annular sealing groove; 18. push-pull plate; 19. threaded hole; 20. screw; 21. positioning ring. DETAILED DESCRIPTION

[0030] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0033] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0034] Reference Figure 1-6A nasogastric drug injection device with a grinder comprises a drug injection barrel 1, a threaded groove 16 is provided at one end of the drug injection barrel 1, and an end cap 5 is screwed on the inner wall of the threaded groove 16, and the drug can be placed in the drug injection device by removing the end cap 5, a connecting pipe 14 is fixed in the middle position of the end cap 5, and a nasogastric tube 6 is arranged on the outer wall of the connecting pipe 14, a mounting hole 15 is provided in the middle position of the other end of the drug injection barrel 1, and a piston rod 7 is inserted into the inner wall of the mounting hole 15, and one end of the outer wall of the piston rod 7 is fixed There is a push-pull plate 18, and the outer wall of the push-pull plate 18 is provided with a piston sleeve 9, the outer wall of the piston sleeve 9 is adapted to the inner wall of the injection barrel 1, one end of the piston rod 7 is provided with a threaded hole 19, and the inner wall of the threaded hole 19 is screwed with a screw 20, one end of the screw 20 is fixed with a rotating shaft 11, the outer wall of the rotating shaft 11 is fixed with a plurality of rows of grinding knives 12 distributed at equal distances, and a positioning component is provided between the outer wall of the rotating shaft 11 and the inner wall of the injection barrel 1, and the positioning component includes a fixed inner wall of the injection barrel 1 A cross 10 is provided on one side of the wall, and a through hole is provided in the middle position of the cross 10, a rotating shaft 11 passes through the inner wall of the through hole, and the cross section of the through hole is cross-shaped, a positioning ring 21 arranged in the through hole is fixed to the outer wall of the rotating shaft 11, a piston handle 3 is fixed to the other end of the piston rod 7, and reinforcing ribs 4 distributed at equal distances are fixed between one side of the piston handle 3 and the outer wall of the piston rod 7, a limiting ring 8 is fixed to one side of the outer wall of the piston rod 7, and the limiting ring 8 is attached to the outer wall of the other end of the injection barrel 1, and curling edges 2 are fixed on both sides of the outer wall of the injection barrel 1 close to the piston handle 3, and the rotating shaft 11 and the grinding knife 12 are driven to reciprocate and rotate under the action of reciprocatingly pushing the piston rod 7 and the screw connection of the threaded hole 19 and the screw 20, so as to facilitate the grinding of the medicine, and when sucking and injecting the medicine, the rotating shaft 11 and the grinding knife 12 can also be driven to rotate, so as to facilitate the mixing of the ground medicine with the medicine, thereby realizing the function of grinding and mixing medicine in the same injector.

[0035] Specifically, the grinding blade 12 is designed to be double-edged, and the grinding blade 12 is tilted to increase the grinding effect.

[0036] Specifically, an annular sealing groove 17 is formed at one end of the drug injection barrel 1 and one end of the end cover 5, and a sealing ring 13 is provided on the inner wall of the annular sealing groove 17. The sealing ring 13 ensures the sealing performance of the end cover 5 and the drug injection barrel 1 to avoid drug leakage.

[0037] Working principle: When in use, the user rotates the end cover 5 to open the injection barrel 1, places the medicine inside the injector and then screws in the end cover 5, drives the piston rod 7, the push-pull disk 18 and the piston sleeve 9 to reciprocate in the injection barrel 1 through the piston handle 3, and drives the rotating shaft 11 and the grinding knife 12 to reciprocate and rotate in the injection barrel 1 in coordination with the screw connection of the threaded hole 19 and the screw rod 20, so that the medicine can be effectively ground. After the grinding is completed, the user connects the connecting tube 14 to the medicine bottle and pulls the piston handle 3. When the medicine is sucked out, the rotating shaft 11 and the grinding knife 12 also rotate, so as to facilitate the mixing of the ground medicine with the medicine, and the above operation is also performed when injecting the medicine, so as to realize the function of grinding and mixing medicine in the same injector, without the need to perform the injection operation through multiple containers, and the operation is convenient.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nasogastric drug injection device with a grinder, comprising a drug injection barrel (1), characterized in that: A thread groove (16) is provided at one end of the injection barrel (1), and an end cap (5) is screwed to the inner wall of the thread groove (16), a connecting pipe (14) is fixed in the middle of the end cap (5), a mounting hole (15) is provided in the middle of the other end of the injection barrel (1), and a piston rod (7) is inserted into the inner wall of the mounting hole (15), a push-pull disk (18) is fixed to one end of the outer wall of the piston rod (7), and a movable The piston sleeve (9) and the outer wall of the piston sleeve (9) are matched with the inner wall of the injection barrel (1); a threaded hole (19) is opened at one end of the piston rod (7); and a screw (20) is screwed to the inner wall of the threaded hole (19); a rotating shaft (11) is fixed to one end of the screw (20); a plurality of rows of grinding knives (12) are fixed to the outer wall of the rotating shaft (11) at equal distances; and a positioning component is arranged between the outer wall of the rotating shaft (11) and the inner wall of the injection barrel (1).

2. A nasogastric feeding medicine injector with a grinder according to claim 1, characterized in that: The outer wall of the connecting tube (14) is provided with a nasogastric feeding tube (6).

3. A nasogastric feeding medicine injector with a grinder according to claim 2, characterized in that: The positioning assembly comprises a cross (10) fixed to one side of the inner wall of the circumference of the injection barrel (1), and a through hole is opened in the middle of the cross (10), and the rotating shaft (11) passes through the inner wall of the through hole, and the cross section of the through hole is cross-shaped, and the outer wall of the rotating shaft (11) is fixed with a positioning ring (21) arranged in the through hole.

4. The nasogastric feeding medicine injector with a grinder according to claim 3, characterized in that: The grinding knife (12) is designed to be double-edged, and the grinding knife (12) is arranged at an angle.

5. The nasogastric feeding medicine injector with a grinder according to claim 4, characterized in that: An annular sealing groove (17) is provided at one end of the drug injection barrel (1) and one end of the end cover (5), and a sealing ring (13) is provided on the inner wall of the annular sealing groove (17).

6. The nasogastric feeding medicine injector with a grinder according to claim 1, characterized in that: A piston handle (3) is fixed to the other end of the piston rod (7), and reinforcing ribs (4) distributed at equal distances are fixed between one side of the piston handle (3) and the outer wall of the piston rod (7).

7. The nasogastric feeding medicine injector with a grinder according to claim 1, characterized in that: A limiting ring (8) is fixed on one side of the outer wall of the piston rod (7), and the limiting ring (8) is fitted on the outer wall of the other end of the injection barrel (1).

8. The nasogastric feeding medicine injector with a grinder according to claim 6, characterized in that: The outer wall of the drug injection barrel (1) close to the piston handle (3) is fixed with curling edges (2) on both sides.

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