Gynecological gel dosing device

Abstract

The utility model relates to the technical field of medical instruments, and discloses a gynecological gel dosing device which comprises a sleeve, a medicine storage cylinder is detachably connected in the sleeve, a large sealing plug is arranged on the inner wall of the medicine storage cylinder in a sliding mode, and an expansion mechanism is arranged in the sleeve. An expansion mechanism is arranged and is matched with a silica gel head, a limiting hole and a blocking plate mounted on the outer wall of a round rod, so that a transmission plate can adjust the air pressure in an air storage cavity by controlling the round rod and a small sealing plug, and expansion and shrinkage of an expansion airbag are controlled through an air hole; the expansion air bag gradually expands in the medicine pushing process and shrinks when the sleeve is pulled out after pushing is completed, so that the medicine is left in the expansion space generated at the vagina focus when the expansion air bag expands, and the medicine can be better left at the focus of a patient and cannot flow out along with pulling out of the sleeve; the medicine waste and the discomfort of a patient are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a gynecological gel applicator. Background Art

[0002] During gynecological treatment, especially for diseases deep in the vagina, it is usually necessary to administer the drug deep into the vagina so that the drug can reach the lesion directly. Commonly used vaginal treatment drugs include gels, ointments, creams and other drugs whose active ingredients are pushed to the lesions deep in the vagina to achieve the therapeutic effect.

[0003] According to a disclosed gynecological gel applicator (publication number: CN217511000U), in the above application, a detachable and replaceable drug storage tube is used to replace the entire injection applicator for drug supply, so that the applicator can be reused multiple times by replacing the drug storage tube, thereby achieving the effect of saving the use of medical equipment, and at the same time it is convenient for users to operate with one hand, thereby improving the convenience of using the device.

[0004] However, in actual use of the above-mentioned device, since the applicator adopts a cylindrical structure to push vaginal drugs, and the pushed drugs are usually composed of gels, ointments, creams, etc., these ingredients are easy to flow after being pushed into the vagina, and then flow out along the vagina as the applicator is taken out, which will not only reduce the efficacy of the drug and cause drug waste, but also cause discomfort to the patient due to flowing out of the patient's body, affecting the patient's use experience; in view of this, we propose a gynecological gel applicator. Utility Model Content

[0005] The purpose of the utility model is to provide a gynecological gel applicator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gynecological gel applicator, comprising a sleeve, an injection head is threadedly connected to the end of the sleeve, a loading chamber is provided inside the sleeve, a drug storage cartridge is detachably connected to the inside of the sleeve, a large sealing plug is slidably provided on the inner wall of the drug storage cartridge, a push rod is penetrated through the inner wall of one end of the sleeve away from the injection head, and the push rod is slidably connected to the injection head, a transmission plate is fixedly installed on the end of the push rod, an expansion mechanism is provided inside the sleeve, and the expansion mechanism comprises:

[0007] A limiting hole is provided on the inner wall of the transmission plate, an air storage cavity is provided on the inner wall of the sleeve, a small sealing plug is slidably provided on the inner wall of the air storage cavity, one end of the small sealing plug is fixedly connected to one end of a round rod, a silicone head is fixedly installed on the other end of the round rod, and an air hole is provided on the outer wall of the air storage cavity near the injection head;

[0008] An expansion airbag, wherein the arc-shaped outer surface of the injection head is fixedly mounted with an expansion airbag, and the inner surface of the expansion airbag is fixedly mounted with a limiting ring;

[0009] An inner groove is provided on the arc-shaped outer wall of the injection head, a protruding airbag is provided on the outer wall of one side of the inner groove, and a blocking airbag is fixedly installed on the inner surface of the bottom of the inner groove.

[0010] Preferably, a threaded tube is provided at the end of the sleeve, and the inner diameter of the threaded tube is matched with the outer diameter of the drug storage cartridge, so as to facilitate the insertion of the drug storage cartridge. A thread matching the threaded tube is provided at the end of the injection head, so that the injection head can be screwed onto the end of the sleeve through the thread. A circular groove with an outer diameter matching the drug storage cartridge is provided on the inner wall of the end of the sleeve away from the injection head, so as to facilitate the drug storage cartridge to maintain a horizontal state inside the sleeve.

[0011] Preferably, a square socket of a size matching the end of the push rod is provided at one end of the medicine storage cartridge close to the push rod, and a square slot matching the end of the push rod is provided at the end of the large sealing plug, so that the push rod can pass through the end of the medicine storage cartridge and enter the square slot when moving horizontally along the inner wall of the sleeve.

[0012] Preferably, the edge of one end of the limiting hole away from the sleeve is rounded to facilitate the silicone head to pass through the limiting hole, and a blocking plate is provided on the outer surface of the round rod, and the diameter of the blocking plate is larger than the inner diameter of the limiting hole, so that when the push rod is pushed toward one side of the sleeve, the silicone head can pass through the limiting hole and then continue to move with the transmission plate.

[0013] Preferably, the interior of the inflatable airbag and the air storage cavity are filled with helium. Since helium is an inert gas, its volume will not change significantly due to temperature changes, making it convenient to control the expansion and contraction of the inflatable airbag through the air storage cavity.

[0014] Preferably, the limiting ring is arranged on the side of the expansion airbag close to the end of the threaded tube, and the limiting ring is arranged in double rings, and the double rings are fixed by metal parts, so that the expansion airbag can be expanded smoothly while its expansion position is on the end side of the injection head.

[0015] Compared with the prior art, the utility model provides a gynecological gel applicator, which has the following beneficial effects:

[0016] 1. The gynecological gel applicator is provided with an expansion mechanism, a silicone head, a limiting hole and a blocking plate installed on the outer wall of the round rod, so that the transmission plate can adjust the air pressure in the air storage cavity by controlling the round rod and the small sealing plug, thereby controlling the expansion and contraction of the expansion balloon through the air hole, so that the expansion balloon gradually expands during the process of pushing the medicine, and contracts when the sleeve is withdrawn after the pushing is completed, so that the medicine remains in the expansion space generated at the vaginal lesion when the expansion balloon expands, so that the medicine can be better retained at the patient's lesion, and will not flow out as the sleeve is withdrawn, causing waste of medicine and discomfort to the patient.

[0017] 2. The gynecological gel applicator has an inner groove on the arc-shaped outer wall of the injection head, and a protruding airbag is arranged on the surface of the expansion airbag at the inner groove. After the injection is completed, the large sealing plug no longer moves. At this time, the protruding airbag will press the inner groove, thereby prompting the blocking airbag to expand and seal the cavity in the injection head, avoiding the pushed medicine to be in a liquid reflux state, affecting the efficiency of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 It is a partial enlarged schematic diagram of the sleeve of the utility model;

[0021] Figure 4 This is a schematic diagram of the drug storage cartridge and the push rod of the utility model;

[0022] Figure 5 It is a cross-sectional schematic diagram of the injection head and the expansion airbag of the utility model.

[0023] In the figure: 1. sleeve; 2. injection head; 3. loading chamber; 4. medicine storage cartridge; 5. large sealing plug; 6. push rod; 7. transmission plate; 8. limit hole; 9. air storage chamber; 10. small sealing plug; 11. round rod; 12. silicone head; 13. air hole; 14. expansion airbag; 15. limiting ring; 16. inner groove; 17. protruding airbag; 18. blocking airbag. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a gynecological gel applicator, comprising a sleeve 1, an injection head 2 is threadedly connected to the end of the sleeve 1, a loading chamber 3 is opened inside the sleeve 1, a drug storage cartridge 4 is detachably connected to the inside of the sleeve 1, a large sealing plug 5 is slidably provided on the inner wall of the drug storage cartridge 4, a push rod 6 is penetrated through the inner wall of the end of the sleeve 1 away from the injection head 2, and the push rod 6 is slidably connected to the injection head 2, a transmission plate 7 is fixedly installed on the end of the push rod 6, an expansion mechanism is arranged inside the sleeve 1, and the expansion mechanism comprises a limiting hole 8, an air storage chamber 9, a small sealing plug 10, a round rod 11, a silicone head 12, an air hole 13, an expansion airbag 14, a limiting ring 15, an inner groove 16, a protruding airbag 17 and a blocking airbag 18.

[0025] In an embodiment of the utility model, a limiting hole 8 is provided on the inner wall of the transmission plate 7, an air storage cavity 9 is provided on the inner wall of the sleeve 1, a small sealing plug 10 is slidably provided on the inner wall of the air storage cavity 9, the end of the small sealing plug 10 is fixedly connected to one end of a round rod 11, and a silicone head 12 is fixedly installed on the other end of the round rod 11, an air hole 13 is provided on the outer wall of the air storage cavity 9 near the injection head 2, an expansion airbag 14 is fixedly installed on the arc-shaped outer surface of the injection head 2, a limiting ring 15 is fixedly installed on the inner surface of the expansion airbag 14, an inner groove 16 is provided on the arc-shaped outer wall of the injection head 2, a protruding airbag 17 is provided on the outer wall of the expansion airbag 14 on one side of the inner groove 16, and a blocking airbag 18 is fixedly installed on the inner surface of the bottom of the inner groove 16.

[0026] In one embodiment of the utility model, a threaded tube is provided at the end of the sleeve 1, and the inner diameter of the threaded tube is matched with the outer diameter of the drug storage cartridge 4, so as to facilitate the insertion of the drug storage cartridge 4. At the same time, a thread matched with the threaded tube is provided at the end of the injection head 2, so that the injection head 2 can be screwed on the end of the sleeve 1 through the thread, thereby completing the installation of the injection head 2. When the drug storage cartridge 4 needs to be replaced, it is only necessary to loosen and remove the injection head 2, and then the drug storage cartridge 4 can be taken out for replacement. In addition, a circular groove with an outer diameter matching the drug storage cartridge 4 is provided on the inner wall of the end of the sleeve 1 away from the injection head 2, so as to facilitate the drug storage cartridge 4 to maintain a horizontal state inside the sleeve 1, thereby facilitating the transmission of the large sealing plug 5 by the push rod 6. At the same time, the injection head 2 is After installation, the inner wall of its end is tightly pressed against the end of the drug storage cartridge 4, thereby ensuring the stability of the drug storage cartridge 4 during use inside the sleeve 1. Furthermore, a square plug hole of a size matching the end of the push rod 6 is provided at one end of the drug storage cartridge 4 close to the push rod 6, and a square slot matching the end of the push rod 6 is provided at the end of the large sealing plug 5, so that the push rod 6 can pass through the end of the drug storage cartridge 4 and enter the square slot when moving along the inner wall of the sleeve 1 in the horizontal direction, and the continuous movement of the push rod 6 makes the large sealing plug 5 move along the inner wall of the drug storage cartridge 4, and then when the device reaches the target position in the vagina, the medicine in the drug storage cartridge 4 is pushed out through the injection head 2 to treat the patient.

[0027] In addition, the edge of the limiting hole 8 at one end away from the sleeve 1 is rounded to facilitate the silicone head 12 to pass through the limiting hole 8, and a blocking plate is provided on the outer surface of the round rod 11, and the diameter of the blocking plate is larger than the inner diameter of the limiting hole 8, so that when the push rod 6 is pushed toward the side of the sleeve 1, the silicone head 12 can pass through the limiting hole 8, and then as the transmission plate 7 continues to move, the transmission plate 7 will squeeze the blocking plate toward the side of the sleeve 1, so that the round rod 11 drives the small sealing plug 10 to move along the inner wall of the air storage chamber 9. Specifically, the interior of the expansion airbag 14 and the interior of the air storage chamber 9 are filled with helium. Since helium is an inert gas, it will not undergo a large volume change due to temperature changes, which is convenient for controlling the expansion and contraction of the expansion airbag 14 through the air storage chamber 9. In addition, the air storage chamber 9 is connected to the expansion airbag 14 through the air hole 13. The interior of the balloon 14 is connected through so that when the small sealing plug 10 compresses the helium in the air storage chamber 9, the helium enters the interior of the expansion balloon 14 through the air hole 13, thereby increasing the volume of the expansion balloon 14 to expand the space inside the patient's vagina, thereby facilitating the insertion of the injection head 2 and avoiding pain to the patient during the insertion and movement to the lesion. Furthermore, a limiting ring 15 is arranged on the side of the expansion balloon 14 close to the end of the threaded tube, and the limiting ring 15 is arranged in double rings, and the double rings are fixed by metal parts, so that the expansion balloon 14 can expand smoothly while its expansion position is on the end side of the injection head 2, so that there is a certain gap between the expansion area and the end of the sleeve 1, thereby ensuring that the vagina near the injection head 2 can expand, and at the same time it will not expand excessively and cause excessive pressure on the patient's vagina.

[0028] In an embodiment of the utility model, the protruding airbag 17 is connected to the inside of the expansion airbag 14, while the blocking airbag 18 is sealed with the inner groove 16. Specifically, when the volume of the expansion airbag 14 increases, the protruding airbag 17 in the inner groove 16 will expand on one side of the injection head 2, thereby squeezing the original air in the inner groove 16, causing it to press the blocking airbag 18 to move toward the inner side of the injection head 2. In the process of pushing the drug, due to the continuous movement of the large sealing plug 5, the pressure in the injection head 2 is greater than the air pressure in the blocking airbag 18, so that the drug can be pushed out smoothly. After the injection is completed, the large sealing plug 5 no longer moves. At this time, the protruding airbag 17 will press the inner groove 16, thereby causing the blocking airbag 18 to expand and seal the cavity in the injection head 2, thereby preventing the pushed drug from being in a liquid reflux state and affecting the drug use efficiency.

[0029] In the present invention, when in use, after the sleeve 1 and the injection head 2 are inserted into the vagina and moved a certain distance to reach the lesion, the transmission plate 7 is pressed toward one side of the sleeve 1, so that the push rod 6 squeezes and pushes the large sealing plug 5, so as to cause the medicine in the drug storage cartridge 4 to be discharged from the injection head 2 and enter the patient's vagina. At this time, due to the continuous movement of the transmission plate 7, after the silicone head 12 passes through the limiting hole 8, the transmission plate 7 will continue to push the blocking plate and drive the round rod 11 to move toward one side of the sleeve 1, so that the small sealing plug 10 will compress the helium in the air storage chamber 9, so that it enters the inside of the expansion airbag 14 through the air hole 13, and through the setting of the limiting ring 15. , so that the expansion balloon 14 expands the vagina near the injection head 2 to form an expansion area to provide space for the retention of the drug. After the drug is pushed, the sleeve 1 is pulled outward. During this process, the transmission plate 7 is slowly pulled outward in advance. Under the restriction of the limit hole 8, the silicone head 12 pulls the round rod 11 and the small sealing plug 10, so that the air storage cavity 9 draws out the helium in the expansion balloon 14 through the air hole 13, thereby causing the expansion balloon 14 to shrink, so that the vaginal expansion part shrinks and holds the drug that has just been pushed, so that the drug can be better retained in the patient's lesion, and will not flow out as the sleeve 1 is pulled out, causing drug waste and patient discomfort.

[0030] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A gynecological gel applicator, comprising a sleeve (1), an injection head (2) being threadedly connected to the end of the sleeve (1), a loading chamber (3) being provided inside the sleeve (1), a drug storage cartridge (4) being detachably connected to the inside of the sleeve (1), a large sealing plug (5) being slidably provided on the inner wall of the drug storage cartridge (4), a push rod (6) being passed through the inner wall of one end of the sleeve (1) away from the injection head (2), and the push rod (6) being slidably connected to the injection head (2), a transmission plate (7) being fixedly installed on the end of the push rod (6), characterized in that: An expansion mechanism is arranged inside the sleeve (1), and the expansion mechanism comprises: A limiting hole (8), the inner wall of the transmission plate (7) is provided with a limiting hole (8), the inner wall of the sleeve (1) is provided with an air storage cavity (9), the inner wall of the air storage cavity (9) is slidably provided with a small sealing plug (10), the end of the small sealing plug (10) is fixedly connected to one end of a round rod (11), the other end of the round rod (11) is fixedly installed with a silicone head (12), and an air hole (13) is provided on the outer wall of one end of the air storage cavity (9) close to the injection head (2); An expansion airbag (14), the expansion airbag (14) is fixedly mounted on the arc-shaped outer surface of the injection head (2), and a limiting ring (15) is fixedly mounted on the inner surface of the expansion airbag (14); An inner groove (16), the inner groove (16) is opened on the arc-shaped outer wall of the injection head (2), the expansion airbag (14) is provided with a protruding airbag (17) on the outer wall on one side of the inner groove (16), and a blocking airbag (18) is fixedly installed on the inner surface of the bottom of the inner groove (16).

2. A gynecological gel applicator according to claim 1, characterized in that: The end of the sleeve (1) is provided with a threaded tube, and the inner diameter of the threaded tube is matched with the outer diameter of the drug storage cartridge (4); the end of the injection head (2) is provided with a thread matched with the threaded tube; the inner wall of the end of the sleeve (1) away from the injection head (2) is provided with a circular groove whose outer diameter matches the drug storage cartridge (4).

3. The gynecological gel applicator according to claim 1, characterized in that: The medicine storage cartridge (4) has a square insertion hole at one end close to the push rod (6) whose size matches the end of the push rod (6), and the end of the large sealing plug (5) has a square slot matching the end of the push rod (6).

4. The gynecological gel applicator according to claim 1, characterized in that: The edge of one end of the limiting hole (8) away from the sleeve (1) is rounded, and a blocking plate is provided on the outer surface of the round rod (11), wherein the diameter of the blocking plate is greater than the inner diameter of the limiting hole (8).

5. The gynecological gel applicator according to claim 1, characterized in that: The interior of the expansion airbag (14) and the interior of the air storage chamber (9) are filled with helium.

6. The gynecological gel applicator according to claim 1, characterized in that: The limiting ring (15) is arranged on one side of the expansion airbag (14) close to the end of the threaded tube, and the limiting ring (15) is arranged in double rings, which are fixed by metal parts.

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