Disposable symmetrical ointment extruder

Abstract

The invention discloses a disposable symmetrical ointment extruder, which belongs to the technical field of medical instruments and comprises an administration cylinder, a push rod is placed in the administration cylinder, one end of the push rod is in contact with a piston, the other end of the push rod is in contact with a push handle, a connecting block is fixedly connected in the push rod, and the connecting block is connected with a first connecting rod through a bearing. The first connecting rod is meshed with a nut through threads, one side of the nut is connected with a piston through a connecting lantern ring, the other end of the first connecting rod is connected with a first rotating disc, teeth are arranged on the first rotating disc, the first rotating disc is connected with a second rotating disc, grooves corresponding to the teeth are formed in the second rotating disc, and the second rotating disc is fixedly connected with a second connecting rod. The second connecting rod is fixedly connected with the push handle. According to the disposable symmetrical ointment extruder, the cap is arranged at the head of the ointment feeding cylinder, the limiting plug pin is arranged at the tail of the ointment feeding cylinder, storage is facilitated, the nut is arranged in the pushing rod, the pushing rod can be conveniently driven to move, and therefore the ointment amount is accurately controlled, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a disposable symmetrical ointment extruder. Background Art

[0002] In modern medical scenarios, hemorrhoids and constipation are extremely common anorectal diseases. For patients with hemorrhoids, when the disease develops to a certain stage, or when constipated patients have severe defecation difficulties, enema becomes an important treatment method. Enema not only helps to clean the intestines and relieve local symptoms, but also creates good conditions for subsequent treatment.

[0003] However, the enema device currently used for enema operation has exposed many problems that need to be solved in actual application.

[0004] First of all, the operation of existing enema devices usually requires professional medical staff to perform. This is mainly because its operation process is relatively complicated and involves multiple delicate links. For example, in the preparation stage, medical staff need to carefully check whether the various parts of the enema device are intact and whether the connections are tight. At the same time, they must accurately adjust the concentration, temperature and dosage of the enema solution to ensure the safety and effectiveness of the enema. During the operation, medical staff need to rely on professional skills and experience to accurately insert the enema tube into the patient's anus, and at the same time closely observe the patient's reaction and adjust the flow rate and pressure of the enema solution in time according to the patient's feelings. This series of operations requires high professionalism of medical staff, and ordinary non-medical staff are difficult to perform.

[0005] Secondly, this complicated operation process greatly limits the convenience of enema. In some areas where medical resources are relatively scarce, or in emergency situations, patients may not be able to get timely help from professional medical staff. For example, in clinics in remote mountainous areas, the number of medical staff is limited. When multiple patients need enema at the same time, there will be queues, delaying the patient's treatment. In addition, for some patients with limited mobility, frequent trips to the hospital for enema treatment also have many difficulties. They may need to be accompanied by their family members, which takes a lot of time and energy.

[0006] More importantly, there is a lack of an enema device on the market that can be easily operated by non-medical staff. This enema device must not only be easy to operate, but also have the function of accurately controlling the dosage. For non-medical staff, complicated operating steps can easily cause tension and anxiety, and increase the risk of operating errors. Accurate control of dosage is crucial to the treatment effect. Too little dosage may not achieve the expected treatment purpose, and too much dosage may cause discomfort to the patient or even cause other complications. Therefore, the development of an enema device that is easy to operate, simple to understand, and has accurate dosage is of extremely important practical significance, both for improving patients' self-care ability and alleviating the current shortage of medical resources. Summary of the invention

[0007] The object of the present invention is to provide a disposable symmetrical ointment extruder, the head of the dosing cylinder is of conical design, and the material is medical plastic, so as to ensure comfort and safety during use; a cap is provided on the head of the dosing cylinder, which seals the dosing cylinder, prevents the medicine inside the dosing cylinder from flowing out from the head of the dosing cylinder, and prevents pollutants such as dust and impurities from entering the interior of the dosing cylinder, so as to avoid contamination of the medicine and affect the quality and therapeutic effect of the medicine; a limit pin is provided at the tail of the dosing cylinder, which limits the push rod, stabilizes the push rod at a specific position, ensures the stability of the dosing cylinder, and prevents the push rod from accidentally moving in a non-operating state, causing the medicine to be squeezed out of the dosing cylinder; a nut, a first connecting rod, a first rotating disk, a second rotating disk, a second connecting rod and a push handle are provided in the push rod, and a thread matching with the nut is provided on the first connecting rod, so as to facilitate the nut to drive the push rod to move, thereby accurately controlling the amount of medicine, and the structure is simple and the operation is convenient.

[0008] To achieve the above-mentioned purpose, the present invention provides a disposable symmetrical ointment extruder, including a dosing cylinder, a push rod is placed inside the dosing cylinder, one end of the push rod is in contact with a piston, and the other end of the push rod is in contact with a push handle, a connecting block is fixedly connected inside the push rod, the connecting block is connected to a first connecting rod through a bearing, the first connecting rod is meshed with a nut through a thread, one side of the nut is connected to the piston through a connecting ring, the other end of the first connecting rod is connected to a first rotating disk, the first rotating disk is provided with teeth, the first rotating disk is connected to a second rotating disk, the second rotating disk is provided with grooves corresponding to the teeth, the second rotating disk is fixedly connected to the second connecting rod, and the second connecting rod is fixedly connected to the push handle.

[0009] Preferably, the dosing cylinder body is symmetrically provided with limit card slots, a limit card is arranged in the limit card slot, a side wing is fixedly connected to the tail of the dosing cylinder body, a first limit hole is arranged on one side of the side wing, and a limit pin is arranged in the first limit hole.

[0010] Preferably, a scale is provided on the outside of the dosing cylinder, and a second limiting hole corresponding to the limiting pin is provided on the pushing rod, the first connecting rod and the connecting collar.

[0011] Preferably, a spring is fixedly connected between the limiting card and the side wall of the limiting card slot away from the head.

[0012] Preferably, there are two side wings, which are symmetrically arranged on the dosing cylinder, and anti-slip grooves are provided on the bottom of the side wings.

[0013] Preferably, the head of the dosing cylinder is of conical design, and the head of the dosing cylinder is connected to the cap.

[0014] Therefore, the present invention adopts the above-mentioned disposable symmetrical ointment extruder, which has the following beneficial effects: (1) The head of the drug delivery cylinder is designed in a conical shape and is made of medical plastic to ensure comfort and safety during use; (2) A cap is provided on the head of the dosing cylinder to seal the dosing cylinder, preventing the drug inside the dosing cylinder from flowing out of the head of the dosing cylinder and preventing external dust, impurities and other pollutants from entering the dosing cylinder, thereby avoiding drug contamination and affecting drug quality and therapeutic effect; (3) A limit pin is provided at the tail of the dosing cylinder, which limits the push rod and stabilizes the push rod in a specific position to ensure the stability of the dosing cylinder and prevent the push rod from accidentally moving when not in operation, causing the drug to be squeezed out of the dosing cylinder; (4) A nut, a first connecting rod, a first rotating disk, a second rotating disk, a second connecting rod and a push handle are arranged inside the push rod. A thread matching with the nut is arranged on the first connecting rod, so that the nut can drive the push rod to move, thereby accurately controlling the amount of medicine. The structure is simple and the operation is convenient.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a disposable symmetrical ointment extruder of the present invention; Figure 2 It is a cross-sectional view of a disposable symmetrical ointment extruder of the present invention; Figure 3 It is a schematic diagram of the structure inside a push rod of a disposable symmetrical ointment extruder of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of a disposable symmetrical ointment extruder cap of the present invention; Figure 5 It is a structural schematic diagram of the first rotating disk of a disposable symmetrical ointment extruder of the present invention.

[0017] Reference numerals 1. Dosing cylinder; 2. Cover cap; 3. Limit card; 4. Spring; 5. Limit latch; 6. Side wing; 7. Anti-slip pattern; 8. Piston; 9. Push rod; 10. Second limit hole; 11. First connecting rod; 12. Nut; 13. First rotating disk; 14. Teeth; 15. Second rotating disk; 16. Second connecting rod; 17. Push handle; 18. Connecting block; 19. Connecting ring. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] Embodiment 1 like Figures 1 to 5 As shown, the present invention provides a disposable symmetrical ointment extruder, including a dosing cylinder 1, the head of the dosing cylinder 1 is a conical design, and the material of the dosing cylinder 1 is medical plastic, ensuring comfort and safety during use. The head of the dosing cylinder 1 is connected to the cap 2, and the cap 2 can seal the dosing cylinder 1, preventing the medicine inside the dosing cylinder 1 from flowing out from the head of the dosing cylinder 1, and preventing external dust, impurities and other pollutants from entering the inside of the dosing cylinder 1, thereby avoiding contamination of the medicine and affecting the quality and treatment effect of the medicine.

[0021] A limit card slot is symmetrically provided on the dosing cylinder 1, and a limit card 3 is arranged in the limit card slot. A spring 4 is fixedly connected between the limit card 3 and the side wall of the limit card slot away from the head. When in use, the limit card 3 will slide along the limit card slot under the action of the spring 4 to prevent damage to the rectum caused by excessive insertion due to tension or misoperation.

[0022] The tail of the drug delivery cylinder 1 is fixedly connected with a side wing 6, and the number of the side wings 6 is two, and they are symmetrically arranged on the drug delivery cylinder 1. The side wings 6 are arranged to facilitate holding and injecting drugs. The bottom of the side wings 6 is provided with anti-slip grooves 7, which can increase friction, prevent accidental slipping during operation, and facilitate force application and injection of drugs.

[0023] The outside of the dosing cylinder 1 is provided with a scale, which is convenient for viewing the injection amount of the drug. A push rod 9 is placed inside the dosing cylinder 1, and one end of the push rod 9 is fixedly connected to a piston 8. The material of the piston 8 is rubber, which can prevent the drug from remaining on the inner wall of the dosing cylinder 1 during injection and can also seal the inside of the dosing cylinder 1. A push handle 17 is installed at the other end of the push rod 9, which is convenient for the thumb to press and inject the drug.

[0024] A connecting block 18 is fixedly connected inside the push rod 9. The connecting block 18 is connected to the first connecting rod 11 through a bearing. The connecting block 18 can provide support for the first connecting rod 11, and the bearing is provided to facilitate the rotation of the first connecting rod 11. The first connecting rod 11 is meshed with the nut 12 through a thread, and the nut 12 can move along the first connecting rod 11 when the first connecting rod 11 rotates. One side of the nut 12 is connected to the piston 8 through a connecting collar 19, and the piston 8 moves when the nut 12 moves along the first connecting rod 11, thereby accurately controlling the amount of medicine squeezed out of the drug delivery cylinder 1.

[0025] The other end of the first connecting rod 11 is connected to the first rotating disk 13, and the rotation of the first rotating disk 13 can drive the first connecting rod 11 to rotate. The first rotating disk 13 is provided with teeth 14, and the first rotating disk 13 is connected to the second rotating disk 15, and the second rotating disk 15 is provided with grooves corresponding to the teeth 14, and the rotation of the first rotating disk 13 can drive the second rotating disk 15 to rotate. The second rotating disk 15 is fixedly connected to the second connecting rod 16, and the second connecting rod 16 is fixedly connected to the push handle 17, and the rotation of the push handle 17 can drive the second connecting rod 16 to rotate, and the rotation of the second connecting rod 16 can drive the second rotating disk 15 to rotate.

[0026] A first limiting hole is opened on one side of the side wing 6, and a limiting pin 5 is arranged in the first limiting hole. The push rod 9, the first connecting rod 11 and the connecting ring 19 are all provided with a second limiting hole 10 corresponding to the limiting pin 5. The limiting pin 5 can be inserted into the push rod 9 through the first limiting hole and the second limiting hole 10, so as to limit the push rod 9 and stabilize the push rod 9 in a specific position, thereby ensuring the stability of the drug delivery cylinder 1 and preventing the push rod 9 from accidentally moving in a non-operating state, causing the drug to be squeezed out of the drug delivery cylinder 1.

[0027] When using the disposable symmetrical ointment extruder provided by the present invention, the cap 2 at the head of the dosing cylinder 1 and the limit pin 5 at the tail are taken out, and then the head is inserted into the anus. The insertion is stopped when the limit card 3 is pushed, and then the push handle 17 is rotated. The push handle 17 drives the second rotating disk 15 to rotate through the second connecting rod 16, so that the first rotating disk 13 rotates. The rotation of the first rotating disk 13 can rotate the first connecting rod 11. The rotation of the first connecting rod 11 can move the nut 12 through the thread. Watch the scale on the outside of the dosing cylinder 1 until the piston 8 is close to the required scale, stop pushing, and rotate the push handle 17 to make the nut 12 drive the push rod 9 to move, so as to accurately control the amount of medicine.

[0028] Therefore, the present invention adopts the above-mentioned disposable symmetrical ointment extruder, the head of the dosing cylinder is of conical design, and the material is medical plastic, which ensures comfort and safety during use; the head of the dosing cylinder is provided with a cap, which seals the dosing cylinder, preventing the medicine inside the dosing cylinder from flowing out from the head of the dosing cylinder, and preventing external pollutants such as dust and impurities from entering the interior of the dosing cylinder, thereby avoiding contamination of the medicine and affecting the quality of the medicine and the therapeutic effect; a limit pin is provided at the tail of the dosing cylinder, which limits the push rod and stabilizes the push rod in a specific position, thereby ensuring the stability of the dosing cylinder and preventing the push rod from accidentally moving in a non-operating state, causing the medicine to be squeezed out of the dosing cylinder; a nut, a first connecting rod, a first rotating disk, a second rotating disk, a second connecting rod and a push handle are provided in the push rod, and a thread matching the nut is provided on the first connecting rod, which is convenient for the nut to drive the push rod to move, thereby accurately controlling the amount of medicine, with a simple structure and convenient operation.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A disposable symmetrical ointment extruder, characterized in that: It includes a dosing cylinder, a push rod is placed inside the dosing cylinder, one end of the push rod is in contact with the piston, and the other end of the push rod is in contact with a push handle, a connecting block is fixedly connected to the inside of the push rod, the connecting block is connected to the first connecting rod through a bearing, the first connecting rod is meshed with a nut through a thread, one side of the nut is connected to the piston through a connecting ring, the other end of the first connecting rod is connected to the first rotating disk, the first rotating disk is provided with teeth, the first rotating disk is connected to the second rotating disk, the second rotating disk is provided with grooves corresponding to the teeth, the second rotating disk is fixedly connected to the second connecting rod, and the second connecting rod is fixedly connected to the push handle.

2. A disposable symmetrical ointment extruder according to claim 1, characterized in that: The dosing cylinder body is symmetrically provided with limit card slots, in which limit card slots are arranged, a side wing is fixedly connected to the tail of the dosing cylinder body, a first limit hole is arranged on one side of the side wing, and a limit pin is arranged in the first limit hole.

3. A disposable symmetrical ointment extruder according to claim 1, characterized in that: The outer side of the drug delivery cylinder is provided with scales, and the push rod, the first connecting rod and the connecting ring are provided with a second limiting hole corresponding to the limiting latch.

4. A disposable symmetrical ointment extruder according to claim 2, characterized in that: A spring is fixedly connected between the limiting card and the side wall of the limiting card slot away from the head.

5. A disposable symmetrical ointment extruder according to claim 2, characterized in that: There are two side wings, which are symmetrically arranged on the dosing cylinder body, and anti-slip grooves are arranged on the bottom of the side wings.

6. A disposable symmetrical ointment extruder according to claim 1, characterized in that: The head of the dosing cylinder is designed to be conical, and the head of the dosing cylinder is connected to the cover cap.

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